CN116237818B - Offset measuring method for deep hole machining - Google Patents
Offset measuring method for deep hole machining Download PDFInfo
- Publication number
- CN116237818B CN116237818B CN202211742930.5A CN202211742930A CN116237818B CN 116237818 B CN116237818 B CN 116237818B CN 202211742930 A CN202211742930 A CN 202211742930A CN 116237818 B CN116237818 B CN 116237818B
- Authority
- CN
- China
- Prior art keywords
- deviation
- workpiece
- hole
- data
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003754 machining Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000523 sample Substances 0.000 claims abstract description 90
- 238000005259 measurement Methods 0.000 claims abstract description 36
- 238000012937 correction Methods 0.000 claims abstract description 28
- 238000009683 ultrasonic thickness measurement Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 58
- 238000005553 drilling Methods 0.000 claims description 46
- 230000008859 change Effects 0.000 claims description 18
- 230000000875 corresponding effect Effects 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000002829 reductive effect Effects 0.000 claims description 5
- 230000002596 correlated effect Effects 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 51
- 230000008569 process Effects 0.000 abstract description 21
- 238000004364 calculation method Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000004445 quantitative analysis Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004441 surface measurement Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
Abstract
The application relates to a deflection measuring method for deep hole processing, which can be based on the measurement of processing deflection and hole forming precision in the deep hole processing process of extending along the axis in the workpieces such as drill collars and the like, and provide fine data support for deep hole processing precision control and deviation correction, and an angle measuring tool and an ultrasonic probe which are arranged on the circumferential surface of the workpieces and defined by positioning marks acquire thickness data and angle data based on ultrasonic thickness measurement and angle measurement; radial deviation of an actual hole relative to an ideal hole in the section of a current workpiece is obtained based on thickness data, angle data and workpiece size calculation, and axial deviation along the machining direction is obtained by the radial deviation, so that three-dimensional deviation data of the actual machining hole relative to a designed position can be directly obtained by deep hole machining deviation measurement based on the method, the deviation data can provide data which are convenient for quantitative analysis for deep hole machining quality improvement, and corresponding deviation correction control measures can be set in a targeted mode.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a deep hole machining technology, and specifically relates to a method for measuring offset of deep hole machining.
Background
The deep hole processing technology is widely applied to the industrial fields of aerospace, energy mining, automobile manufacturing, petrochemical industry, metallurgy, instrument and meter, national defense equipment manufacturing and the like, has high processing difficulty and high manufacturing cost, and becomes one of the difficulties in the mechanical manufacturing technology. Particularly, deep holes refer to holes with the ratio of hole depth to hole diameter being more than or equal to 5, particularly deep holes processed by partial workpieces are ultra-deep holes in the petroleum and mineral exploitation process, the ratio of the hole depth to the hole diameter can reach 20 and more, the processing difficulty is that the tool system is low in rigidity due to the fact that the tool is slender, the tool is easy to deflect due to self-guiding, heat dissipation is difficult, chip removal is difficult, the phenomenon that the diameter is enlarged, conical shape or hole deflection occurs frequently, and the like is caused, and therefore the quality requirement cannot be met.
Because deep hole processing is processing operation in a closed state or a semi-closed state, and the deep hole processing process is complex, factors causing the offset of a hole axis are various, such as insufficient cutter bar rigidity, initial deflection of a cutter, dead weight of the cutter bar, processing mode, influence of geometric parameters of the cutter and other factors, and meanwhile, due to the characteristics of sealing and invisible deep hole processing, a common cutter detection method and instrument cannot be applied to state detection of deep hole processing, so that effective monitoring is difficult in the deep hole processing process. Along with the continuous improvement of the requirements of the deep hole processing quality in various fields, a method and a means for detecting deviation and controlling quality are required to be introduced in the deep hole processing process to improve the processing precision so as to improve the processing quality.
The technical scheme for detecting and correcting the deep hole machining deviation in the prior art comprises the following steps: empirical formulas for axial force and lateral force are developed from two factors of chip deformation and cutting force; analyzing the guide blocks, and determining the influence of the installation positions, the number and the structural shape of the guide blocks on the deflection of the hole axis; the ultrasonic detection technology is applied to the measurement of the straightness of the hole in the deep hole cutting process so as to realize the real-time monitoring of the axis deflection of the hole in the deep hole cutting process.
For example, patent publication number CN208214400U discloses a deep hole machining deflection measuring device comprising a resettable probe assembly, a centering adjustment bracket assembly, and a controllable kinematic pair; the resettable probe assembly comprises a probe disc and three groups of ultrasonic probe devices which are annularly arranged on the probe disc at equal intervals, the probe disc is sleeved outside a part to be processed, and the three groups of ultrasonic probe devices are perpendicular to the outer wall of the part to be processed; according to the utility model, three groups of ultrasonic probe devices are arranged outside a part to be processed at the end position of a deep hole cutter, the three groups of ultrasonic probe devices are arranged at equal intervals in a ring shape through a probe disc, the three groups of ultrasonic probe devices sequentially measure pore-forming information at the end position of the deep hole cutter, and the three groups of ultrasonic probe devices arranged on the probe disc synchronously feed along with the feeding of the deep hole cutter to measure pore-forming information of the next station.
The patent with the publication number of CN102658382B discloses an automatic correction frame for deep hole processing of a non-magnetic drilling tool, which solves the problem that a processing machine tool in the production of the existing drill collar causes easy deviation of drilling a workpiece, and the structure comprises a lathe bed and the automatic correction frame arranged on the lathe bed; the automatic correction frame comprises a machine base, a rotary sleeve seat, a rotary sleeve, a bearing, a plug, a servo motor, a depth adjusting device, a laser data acquisition device and a PC data processing control cabinet. The invention adopts a laser accurate correction technology and combines a servo system to carry out closed-loop PC data processing, thereby realizing automatic correction of the workpiece in the deep hole processing process. The patent with the publication number of CN105382632B discloses a rear-mounted deep hole processing on-line detection and correction device, which comprises a cutter bar, wherein a plurality of iron blocks are uniformly arranged on the cutter bar along the circumferential direction, a heating device is arranged in each iron block, a wear-resistant block is arranged at the top of each iron block, a pyramid prism is arranged on the end face of the other end of the cutter bar, a laser emitting device and a photosensitive sensor are arranged in a height range corresponding to the pyramid prism, and an incident beam emitted by the laser emitting device is oriented by a laser guide block. The invention can grasp the position information of the cutter in the deep hole processing process, judge whether the deep hole is deviated or not, and promote the detection of the straightness of the deep hole of the workpiece and solve the problem of online deviation correction.
For example, when deep hole processing is performed on a drill collar, unavoidable and unpredictable deviations occur during deep hole drilling due to the characteristics of uneven internal stress and hardness, etc., and such deviations increase non-linearly with increasing diameter-to-length ratio. The offset introduced by the drilling system itself is superimposed and these factors affect each other for high precision mechanical parts, resulting in process deviations that are difficult to predict and require comprehensive attention to achieve low offset process precision.
Based on the analysis, the prior art utilizes an ultrasonic thickness measurement technology to carry out on-line detection on the pore-forming quality in the deep hole machining process, a detection device carries out follow-up feeding along with deep hole machining so as to realize continuous multi-point detection of deep hole machining deviation measurement, but the detection mode cannot carry out angle adjustment on the condition that the deep hole machining position is positioned at a non-central axis so as to realize measurement of the position opposite to the deep hole machining axis;
the laser detection scheme based on radial or axial deviation of the deep hole machining axis can only measure the deviation represented on the outer surface of the workpiece, and can not accurately obtain the trend and the hole forming precision of the tool in deep hole machining, so that the deviation obtained by external laser detection can introduce unexpected error factors to the deviation correcting control in the deep hole machining process.
Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, as the inventors studied numerous documents and patents while the present invention was made, the text is not limited to details and contents of all that are listed, but it is by no means the present invention does not have these prior art features, the present invention has all the prior art features, and the applicant remains in the background art to which the rights of the related prior art are added.
Disclosure of Invention
Aiming at least part of the defects of the prior art, the application provides a method for measuring the offset of deep hole machining, which can be based on measuring the machining offset and the hole forming precision in the deep hole machining process of extending along the shaft in a drill collar and other workpieces and provides fine data support for controlling and correcting the deep hole machining precision. The method comprises the following steps: for the deep hole machining process of shaft lever type workpieces, the drilling tool system performs feeding motion along the axial direction of the workpieces, the workpieces are defined with ideal holes extending along the axial direction and actual holes machined by the drilling tool system, and positioning marks corresponding to the ideal holes in the radial direction are machined on the circumferential surface of the workpieces. In the case where the drilling tool system starts to machine or feed a certain distance along the axial direction of the workpiece, an angle gauge and an ultrasonic probe which are arranged on the circumferential surface of the workpiece and define the circumferential arrangement range by the positioning marks measure the thickness data of the actual hole relative to the circumferential surface of the workpiece in the current workpiece section based on ultrasonic thickness measurement and angle measurement and obtain the angle data of the actual hole relative to the ideal hole. And calculating based on the thickness data, the angle data and the workpiece size to obtain radial deviation of the actual hole relative to the ideal hole on the section of the current workpiece, decomposing the radial deviation into components in mutually perpendicular directions, and providing deviation data for deviation correction control of deep hole machining.
Aiming at the situation that deviation measurement in the deep hole machining process is limited to deviation data represented on the outer surface of a workpiece or can not be suitable for eccentrically arranged deep hole machining in the prior art, the application provides a deviation measurement method based on matching of ultrasonic thickness measurement and angle measurement. The angle measuring tool for angle measurement is arranged around the circumferential surface of the workpiece, so that the static coverage or the dynamic coverage of the angle measuring tool at least comprises the position of the positioning mark, and as the actual hole machined by the drilling tool system along the axial direction of the workpiece is offset relative to the ideal hole in the three-dimensional direction, deviation data of the actual hole relative to the ideal hole can be divided into radial deviation represented on the cross section of the workpiece and axial deviation represented on the machining direction of the workpiece, wherein the radial deviation can be decomposed into deviation components in mutually perpendicular directions, the axial deviation is represented by the change rate of the radial deviation along the axial direction, and the deviation data can provide fine data for deviation correction control for the deep hole machining process based on the three-dimensional deviation data.
Because the deviation data of the actual hole relative to the ideal hole has unpredictability, when the relative parameters of the actual hole with a single section are measured, the position of the actual hole needs to be accurately positioned, and the position parameters of the actual hole relative to the ideal hole are obtained, an ultrasonic probe for measuring the thickness data can move relative to the circumferential surface of the workpiece to obtain the extreme value of the distance data from the actual hole to the circumferential surface of the workpiece, so that the thickness data and the angle data for representing the angle deviation of the actual hole relative to the ideal hole are obtained, and the radial deviation in the vertical direction and the axial deviation obtained by calculating the radial deviation on a plurality of workpiece sections can be obtained by combining the calculation of the workpiece parameters. Therefore, the three-dimensional deviation data of the actual machining hole forming relative to the designed position can be directly obtained by the deep hole machining deviation measurement based on the method, the method has good applicability to deep hole machining in central setting or eccentric setting, and unexpected deviation caused by indirect measurement such as surface measurement can be avoided, so that the deviation data measured based on the scheme of the application can provide data which is convenient for quantitative analysis for the quality improvement of deep hole machining, and corresponding deviation correction control measures can be conveniently and pertinently set.
Preferably, the deviation during deep hole machining can be divided into a radial deviation of the actual hole relative to the workpiece cross section and an axial deviation along the axial machining travel direction, the radial deviation being indicative of the axial deviation based on the rate of change of the radial deviation of several adjacent or spaced workpiece cross sections to characterize the travel direction deviation during deep hole machining. Such that radial and circumferential deviations may be indicative of three-dimensional deviation data of the deep hole machining process.
Preferably, the angle gauge and the ultrasonic probe are axially movable relative to the workpiece in coordination with dynamic feed of the drilling system deep hole machining, with the ultrasonic probe movable along the circumferential surface of the workpiece and taking thickness data measurements. The ultrasonic probe can perform circumferential movement relative to the workpiece and at least cover a set detection range to measure distance data of an actual hole from the circumferential surface of the workpiece, a functional relation of the distance data relative to the deviation angle of the ultrasonic probe and the positioning mark is formed, and the distance data and the angle deviation of the position are respectively determined to be actual hole relative thickness data and actual hole relative angle data under the condition that the extreme value of the functional relation of the distance data relative to the deviation angle is obtained.
Preferably, in the functional relation of the distance data relative to the deviation angle of the ultrasonic probe and the positioning mark, the symmetry degree of the vertical axis where the position of the functional relation relative to the extreme value is used for representing the circumference degree of the actual hole, and the pore-forming quality of the actual hole is represented based on the derivative relation of the functional relation in the range containing the extreme value and the change rate of the derivative relation along the axial direction.
Preferably, the workpiece is machined with axially disposed locating marks on the circumferential surface nearest to the desired hole, wherein the locating marks may be graduated shallow wire grooves, the graduations being used to indicate the distance of extension in the axial direction, so that the shallow wire grooves may then provide a locating reference for components disposed on the circumferential surface of the workpiece.
Preferably, the angle gauge and the ultrasonic probe are movably adjusted by a holding assembly, and the holding assembly can be arranged on the machine tool, so that the holding assembly can respectively control the movement of the ultrasonic probe along the circumferential direction and the movement of the angle gauge along the axial direction.
Preferably, in the case where the holding assembly performs movement control of the ultrasonic probe and the angle gauge, a detection range of the ultrasonic probe at the circumferential surface of the workpiece may be set to cover a part of the circumference of the positioning mark, so that the movement of the ultrasonic probe in the circumferential direction may cover the detection range at least once on a single section and exhibit a rule of reciprocating movement based on a section change in the axial direction.
Preferably, the angular measuring device and the ultrasonic probe are arranged in such a way that the movement distance of the ultrasonic probe in the axial direction is equidistant or the movement distance of the ultrasonic probe is locally reduced, wherein the detection range of the ultrasonic probe in the next section can be adjusted in a positive correlation with the angular data of the current section when the movement distance of the ultrasonic probe in the axial direction is locally reduced.
Preferably, the radial deviations are resolved in mutually perpendicular directions as follows:
the components of the radial offset on the Y-axis are: ly= [ (D/2) -b ]. Cos theta. -R,
The components of the radial offset in the X-axis are: lx= [ (D/2) -b ]. Sinθ,
The method comprises the steps of determining the diameter of an outer circle of a workpiece to be processed, determining the machining aperture to be D, determining the distance between an ideal hole circle center and the axis of the workpiece to be R, determining the angle data of an actual hole relative to an ideal hole to be θ, and determining the thickness data of the actual hole measured by an ultrasonic probe to be b.
Drawings
FIG. 1 is a schematic overall construction of a preferred embodiment of the present invention;
fig. 2 is a partial structural schematic diagram of a preferred embodiment of the present invention.
List of reference numerals
1: A workpiece; 2: an ideal hole; 3: an actual hole; 4, a step of; an ultrasonic probe; 5: an angle measuring tool; 6: positioning marks; 7: a scale.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Aiming at the problems that the processing position is limited and the detection information cannot accurately reflect the deep hole processing deviation in the existing deep hole processing measurement, the application provides a method for measuring the offset of deep hole processing, which can provide fine data support for deep hole processing precision control and deviation correction based on the measurement of processing offset and hole forming precision in the deep hole processing process of extending along the shaft in a workpiece 1 such as a drill collar. The deep hole machining is easy to generate disturbance and machining deviation in the machining process based on the structural characteristics of a cutter and the machining characteristics of the deep hole, and the deviation measurement is limited by the spatial position relation between a workpiece 1 and the machining dimension, so that the scheme for measuring the deviation from the inside of the deep hole is only suitable for deep hole machining processes with larger dimension or low depth-diameter ratio, and the existing scheme based on external ultrasonic measurement and laser surface measurement cannot be suitable for the situation that the deep hole machining is in a non-axial center or unexpected deviation can be introduced, especially when machining parts such as drill collars and the like in the geological exploration and resource exploitation fields, due to the machining characteristics of blind hole machining, eccentric machining and high depth-diameter ratio, the prior art cannot provide a method for effectively measuring the deviation of the deep hole machining to accurately and efficiently correct the deep hole machining.
For example, a drill collar used for oil drilling exploitation is arranged at the lower part of a drilling tool and is a main component part of the lower drilling tool, and a non-magnetic drill collar with large wall thickness, large gravity and rigidity is mainly adopted. The main functions of the method include: and the drilling pressure is applied to the drill bit, so that the necessary strength under the compression condition is ensured, the vibration, swing and jump of the drill bit are reduced, and the drill bit works stably to control the well deviation. Therefore, the drill collar is equivalent to a travel maintaining guide device of a drilling tool system, and has important significance in the aspects of excessive force, stable travel, accurate guide and the like in the drilling and exploitation process. The hardness of the drill collar reaches more than 40HRC, the yield strength reaches about 1100MPa, and because of the non-uniformity of internal stress and hardness, the deviation which is difficult to predict is inevitably generated in the deep hole drilling process, the deviation is increased in a nonlinear manner along with the increase of the diameter-length ratio, and the deviation is introduced into a drilling tool system by overlapping, so that only the deviation degree which is shown on the outer surface of the workpiece 1 can be obtained based on the laser detection of the outer surface, and obviously, the actual deviation data in the deep hole processing cannot be accurately obtained.
Therefore, the method of the application is mainly aimed at the shaft lever type workpiece 1, and can be applied to the processing of blind holes, eccentric processing and deep hole processing with high depth-to-diameter ratio. As shown in fig. 1, the method is mainly based on ultrasonic thickness measurement and angle measurement matched with the positioning mark 6 and performs operation to obtain radial deviation and axial deviation of deep hole machining from an ideal hole 2 along the axial machining. In the deep hole machining process, the travelling deviation of the drilling tool system relative to the workpiece 1 exists in a three-dimensional space, so that in order to accurately measure the deviation and form accurate data capable of assisting in deviation correction control, it is necessary to respectively measure and calculate the deviation in all directions of the space, for example, for the workpiece 1 such as a shaft rod, the deviation in the deep hole machining process can be divided into the travelling direction deviation in the axial direction and the radial deviation of the deep hole section at the position of the workpiece section, the radial deviation of the deep hole section at the position of the workpiece section is divided into the deviation in the mutually perpendicular direction, so that the radial deviation of the actual hole 3 relative to the ideal hole 2 formed in the actual machining process can be quantified based on the deviation value in the mutually perpendicular direction, and the axial deviation of the actual hole 3 relative to the ideal hole 2 can be characterized based on the change parameters of the radial deviation at a plurality of adjacent axial sections, so that the travelling direction deviation and the change rate of the radial deviation in the deep hole machining process can be represented.
As shown in fig. 1, the workpiece 1 may be a drill collar or the like having a circumferential surface, and when the deep hole machining position is located at the axial center of the workpiece 1, blind holes for mounting positioning fixtures for determining the position of machining at the axial end face of the workpiece 1 are arranged at both axial ends of the workpiece 1, so that the initial deviation of deep hole machining can be controlled by improving the position close to the ideal hole 2 according to the initial machining position determined by the positioning fixtures. In the deep hole processing process, in order to reduce the deviation amount of the structural characteristic example of the drilling tool system, the drilling tool system can call a plurality of drilling tools with different specifications to process the deep hole in a preset strategy or a strategy adjusted according to the detection result, so that the deviation introduced by the drilling tool system can be improved in the deep hole processing process so as to improve the deep hole processing quality.
Preferably, as shown in fig. 1 and 2, to better characterize the machining position of the ideal hole 2 and provide a reference basis for positioning other components, the workpiece 1 is machined with positioning marks 6 arranged along the axial direction on the circumferential surface nearest to the ideal hole 2, the positioning marks 6 can be shallow wire grooves with graduations 7, the graduations 7 can be used for indicating the extending distance along the axial direction, and the shallow wire grooves can provide a positioning reference for components arranged on the circumferential surface of the workpiece 1. For the situation that the position of the ideal hole 2 is located at the axis or the eccentric position of the workpiece 1, radial deviation exists in the section position of the actual hole 3 relative to the ideal hole 2 in the workpiece 1, and the radial deviation can be decomposed into two deviation amounts in mutually perpendicular directions, so that corresponding deviation correcting measures can obtain accurate input parameters for deviation correcting control based on the deviation amounts in the mutually perpendicular directions. Specifically, defining the diameter axis passing through the center of the ideal hole 2 as the Y axis and defining the axis perpendicular to the Y axis and passing through the center of the workpiece 1 as the X axis enables the deviation of the actual hole 3 from the ideal hole 2 to be resolved into the amounts of deviation of the X axis and the Y axis. The position of the ideal hole 2 is defined according to the specification and the processing requirement of the workpiece, so that the center position and the range of the ideal hole 2 have defined parameters or parameter ranges in a coordinate system formed by an X axis and a Y axis; while accurate positioning for the actual hole 3 position is of great importance for accurate measurement of radial deviations in cross section.
In order to ensure accurate measurement of radial deviation data of an actual hole 3 positioned in the workpiece 1 on a cross section, the application can adopt an ultrasonic thickness measurement mode and an angle positioning mode matched with a marked reference to measure the position of the actual hole 3, so that the actual hole 3 obtains coordinate parameters of the actual hole 3 on an X axis and a Y axis and deviation data of the actual hole 3 relative to an ideal hole 2 based on the thickness data and the angle data and combined with the workpiece size. Specifically, the measurement of the thickness data is realized based on the ultrasonic probe 4 arranged on the outer surface of the workpiece 1, and the ultrasonic probe 4 can be adjusted and moved along the circumferential direction and the axial direction of the workpiece 1 so as to meet the measurement requirement in the deep hole machining dynamic process; the measurement of the angle data is realized based on an angle measuring tool 5 arranged on the outer surface of the workpiece 1, the angle measuring tool 5 can cover part of the outer surface of the workpiece 1 at least comprising a shallow slot, and the angle measuring tool 5 can be matched with an ultrasonic probe 4 to obtain the angle data of radial deflection of the actual hole 3 relative to the ideal hole 2. For accurately measuring thickness data and angle data, it is important for accurate positioning of the position of the actual hole 3, the ultrasonic probe 4 can measure the distance from the actual hole 3 to the surface of the workpiece 1, namely, the thickness data is the extreme point of the distance from the current position of the actual hole 3 to the surface of the workpiece 1. The measuring process of the ultrasonic probe 4 on the surface of the workpiece should be dynamically changed within a certain range in order to ensure that the ultrasonic probe 4 can accurately measure the extreme value of the distance from the position of the actual hole 3 to the surface of the workpiece 1 due to the offset change of the actual hole 3 during the processing process. Specifically, the ultrasonic probe 4 is cooperatively arranged with the angle measuring tool 5, the ultrasonic probe 4 can move along the circumferential direction of the workpiece 1 based on a measuring track arranged on one side of the angle measuring tool 5 away from the workpiece 1, so that the ultrasonic probe 4 can obtain a distance function from the actual hole 3 to the ultrasonic probe 4 based on movable measurement along the circumferential direction of the workpiece 1, an independent variable is an angle deviation of the ultrasonic probe 4 relative to the positioning mark 6, a dependent variable is distance data, an extreme value in the distance data, namely a maximum value or a minimum value of the distance from the actual hole 3 to the surface of the workpiece, is selected as thickness data of the actual hole 3, and the angle deviation of the position of the thickness data measured by the ultrasonic probe 4 can be used as angle data of the actual hole 3 relative to the positioning mark 6.
In the functional relation of the distance data of the actual hole 3 from the circumferential surface of the workpiece 1 relative to the deviation angle of the ultrasonic probe 4 and the positioning mark 6, because the deep hole machining hole and the moving path of the ultrasonic probe 4 along the circumferential direction of the workpiece 1 have symmetrical relation relative to the extreme value position, the data or derivative relation corresponding to the functional relation should be symmetrical at both ends of the extreme value, so that the standard degree of the symmetrical relation can be used for evaluating the hole forming quality and also can be used for the reference index of the hole forming quality in the axial direction. Therefore, the symmetry degree of the functional relation relative to the vertical axis where the extreme value position is located is used for representing the hole forming circumference, and the hole forming quality is represented based on the derivative relation of the functional relation in the range containing the extreme value and the change rate of the derivative relation along the axial direction.
Deviation data of the actual hole 3 relative to the ideal hole 2 in the cross section of the work piece 1 can be obtained based on the calculation of the thickness data, the angle data and the size of the work piece 1. For example, define: the diameter of the outer circle of the workpiece 1 is D, the machining aperture is D, the distance between the center of an ideal hole 2 and the axis of the workpiece 1 is R, the angle data of an actual hole 3 relative to the ideal hole 2/positioning mark 6 is theta, the thickness data of the actual hole 3 measured by the ultrasonic probe 4 is b, the Y-axis direction offset is Ly, the X-axis direction offset is Lx, an included angle theta between the ultrasonic probe and the left side of the Y-axis is specified to be negative, an included angle theta between the ultrasonic probe and the right side of the Y-axis is specified to be positive, the right side of the X-axis is specified to be positive, and the upper side of the Y-axis is specified to be positive:
the components of the offset data on the Y-axis are: ly= [ (D/2) -b ]. Cos theta. -R,
The components of the deviation data on the X-axis are: lx= [ (D/2) -b ]. Times.sin θ.
To ensure accurate positioning of the actual hole 3 during deep hole machining dynamics, the ultrasonic probe 4 is configured to be able to perform thickness measurements in a manner that moves in the circumferential direction of the workpiece 1, and the angle gauge 5 and the ultrasonic probe 4 are configured to move in the axial direction of the workpiece 1 to accommodate the dynamics of deep hole machining. Specifically, for determining the workpiece 1 with a processing model, the angle gauge 5 selects a specification corresponding to the radian size of the workpiece 1, the angle gauge 5 and the ultrasonic probe 4 are movably adjusted by a holding component, and the holding component can be arranged on a machine tool, so that the holding component can respectively control the movement of the ultrasonic probe 4 along the circumferential direction and the movement of the angle gauge 5 along the axial direction, wherein the movement of the ultrasonic probe 4 along the circumferential direction is performed based on a track arranged on the angle gauge 5, and the angle gauge 5 drives the ultrasonic probe 4 to move along the axial direction while moving along the axial direction. In order to ensure accurate measurement of thickness data of an actual hole 3 on a workpiece section by the probe, the movement of the ultrasonic probe 4 along the circumferential direction and the movement of the angle measuring tool 5 along the axial direction are performed at intervals, so that the movement of the ultrasonic probe 4 along the circumferential direction is positioned on the same section circumference of the workpiece 1 to ensure the accuracy of thickness data measurement, and the movement interval of the angle measuring tool 5 along the axial direction is set according to processing parameters and measurement requirements in the deep hole processing dynamic process.
Specifically, the ultrasonic measurement may be started from the end surface of the workpiece, or may be started from a point in the axial direction of the workpiece 1, for example, from a position where the scale of the positioning mark 6 is 600 mm. The position of the angle gauge 5 corresponding to the positioning mark 6 is defined as a standard center and is used as an initial position of the ultrasonic probe 4 for thickness measurement, a moving range of the ultrasonic probe 4 along the circumferential direction of the angle gauge 5 on a single section is defined as a detection range, the maximum deviation of the detection range relative to the standard center is defined as a standard radius, and the position of the angle gauge 5 for obtaining the thickness extreme value in the detection range is defined as a reference center. Since the deviation data is gradually developed in the process of changing the continuous section of the workpiece 1, but the detection of the thickness data of a single section requires detection time, the movement of the angle gauge 5 in the axial direction needs to be performed at intervals and a movement interval is generated in the axial direction, and the movement interval can be adjusted based on the thickness measurement state, so that the ultrasonic probe 4 can measure the thickness data of the workpiece section covered by the angle gauge 5 at intervals to evaluate the situation that the analysis deviation data is developed in the axial direction.
In order to facilitate the movement control of the ultrasonic probe 4 and the angle gauge 5 and the detection and analysis of deviation data, the holding assembly performs movement control on the ultrasonic probe 4 and the angle gauge 5. The detection range of the ultrasonic probe 4 in the circumferential direction of the workpiece 1 may be set to a partial circumference around the standard center, so that the movement of the ultrasonic probe 4 in the circumferential direction can exhibit a rule of reciprocating movement in covering the detection range at least once and based on the change of the cross section, that is, the ultrasonic probe 4 can recognize the reference center and angle data and thickness data corresponding to the reference center once moved along the detection range, and prepare for the deviation detection of the next cross section, so that the use of the deviation detection of the single cross section is kept stable. While the movement of the angle gauge 5 along the axial direction of the workpiece 1 is determined according to the machining data and the feeding data, for example, the movement interval of the angle gauge 5 along the axial direction of the workpiece 1 can be kept consistent in the axial direction, so that the ultrasonic probe 4 can measure deviation data of a plurality of equally spaced cross sections of the workpiece 1, and the deviation data can uniformly reflect the deviation degree of the machining process in the axial direction to intuitively obtain deep hole machining quality.
The moving distance of the angle measuring tool 5 along the axial direction of the workpiece 1 can also be executed according to a setting scheme, the setting scheme can properly reduce the moving distance in the range of important structures or components, so that fine data of the position range of the structures or components can be obtained based on deviation data detection of denser cross sections, data support can be provided for deviation detection and deviation correction control of key positions, and the method can also be used for analyzing the influence of the surface structure on the change rule of deviation generated by deep hole processing at corresponding positions. The detection range of the ultrasonic probe 4 along the circumferential direction of the workpiece 1 can be adjusted according to the deviation data of the current section in order to improve the measurement efficiency of the ultrasonic probe 4 and adapt to the decrease of the axial movement interval of the angle gauge 5, and because the deviation degree of the actual hole 3 relative to the ideal hole 2 is small and the deviation develops in the adjacent sections with small interval can be approximately continuous change process, the detection range of the next section can be adjusted according to the reference center of the current section, specifically, half of the detection range of the next section can be the multiple of the circumferential deviation of the reference center of the last section relative to the standard center, and half of the determined detection range is not less than the maximum circumferential deviation measured by the upstream section, so that the setting of the detection range can be dynamically adjusted according to the actual deviation development trend, the unnecessary movement of the ultrasonic probe 4 in the circumferential direction caused by the fixed setting of the detection range can be avoided, the deviation detection efficiency of the single section can be improved to adapt to the change of the axial movement interval of the angle gauge 5, and the detection speed of the deviation data of the workpiece section is not lower than the feeding speed of the drilling tool system.
Preferably, in the functional relation of the distance data of the actual hole 3 from the circumferential surface of the workpiece 1 relative to the deviation angle of the ultrasonic probe 4 from the positioning mark 6, the symmetry degree of the functional relation relative to the vertical axis where the extremum is located is used to represent the circumference of the actual hole 3, and the pore forming quality of the actual hole 3 is represented based on the derivative relation of the functional relation in the range containing the extremum and the change rate of the derivative relation along the axial direction. Since the deep hole machining pore-forming and the ultrasonic probe 4 have a symmetrical relation with respect to the extreme position along the moving path of the workpiece 1 in the circumferential direction, the data or derivative relation corresponding to the functional relation should be symmetrical at both ends of the extreme, so that the standard degree of the symmetrical relation can be used for evaluating pore-forming quality and also can be used for the reference index of the pore-forming quality in the axial direction. Therefore, the symmetry degree of the functional relation relative to the vertical axis where the extreme value position is located can be used for representing the hole forming circumference, and the hole forming quality is represented based on the derivative relation of the functional relation in the range containing the extreme value and the change rate of the derivative relation along the axial direction.
Preferably, in the deep hole machining process, the acting positions of the ultrasonic probe 4, the drilling system and the deviation correcting component on the workpiece 1 are arranged along the deep hole machining direction, and then the acting positions of the ultrasonic probe 4, the drilling system and the deviation correcting component on the workpiece 1 are respectively defined as a detection section, a machining section and a correction section, wherein the detection section is a workpiece section where the ultrasonic probe 4 and the angle measuring tool 5 contact the workpiece 1, the machining section is a workpiece section where the drilling system performs cutting operation, and the correction section is a workpiece section where the deviation correcting component applies acting force for controlling the whole drilling direction to the workpiece 1. For example, the detection section is located upstream of the processing section, and the distance between the processing section and the detection section is defined as the detection distance; the correction section is positioned at the downstream of the processing section, and the distance between the processing section and the correction section is defined as the deviation correcting distance; considering the influence of the cutting action of the drilling tool system on the machining section and the drilling completion degree on deviation measurement, the detection section is selected to be upstream of the machining section by the detection distance, the size of the detection distance is adjusted according to the feeding state of the drilling tool system, when the feeding speed of the drilling tool system is higher, the cutting action of the drilling tool end part and the workpiece 1 is stronger, and the probability of deviation and shake of the drilling tool end part relative to the workpiece 1 is higher; when the feeding depth of the drilling tool system is larger, the rigidity of the drilling tool system is reduced due to the increase of the action length, so that the probability of deviation of the drilling tool system is increased, therefore, the setting of the detection distance should be set according to the feeding state of the drilling tool system, so that the magnitude of the detection distance is positively correlated with the magnitude of the feeding depth and the magnitude of the feeding speed respectively, for example, the detection distance is set in stages in different magnitude ranges according to the feeding speed and the feeding depth, so that the detection distance is adjusted in a first preset range, the first preset range can be a multiple range taking the machining parameters as a unit, so that the setting of the detection distance can also meet the time delay requirement of the control unit for controlling the drilling tool system and the deviation correcting component on the basis of weakening the influence of the machining action on deviation data as much as possible, and the setting of the detection distance can comprehensively consider the measurement error and the time delay control to achieve the optimal state of the machining process.
And the deviation correcting distance of the correction section relative to the detection section is influenced by the feeding state of the drilling tool system and deviation data: when the feeding speed of the drilling tool system is higher, the deviation correcting distance of the correction section relative to the processing section is prolonged to adapt to the change of the cutting distance of the drilling tool system relative to the workpiece 1 in unit time, so that the deviation correcting action of the correction section on the drilling tool system can keep proper action time; the radial deviation of the deviation data represents the deviation degree of the actual hole 3 from the ideal hole 2, so as to ensure the timeliness of deviation correction control, the absolute value of the radial deviation of the deviation correction distance is in negative correlation, for example, the deviation correction distance is configured as a negative correlation function of the square of the radial deviation, so that the deviation correction distance changes within a second preset range, and the second preset range can be a multiple range taking the machining parameters as units, so that the local bending deformation of the actual hole 3 along the axial direction can be controlled while the deviation correction distance is adjusted timely and effectively.
It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents.
Claims (10)
1. The method is characterized by comprising the following steps of:
aiming at the deep hole machining process of the shaft rod type workpiece (1), a drilling tool system performs feeding motion along the axial direction of the workpiece (1), the workpiece (1) is defined with an ideal hole (2) extending along the axial direction and an actual hole (3) machined by the drilling tool system, and a positioning mark (6) corresponding to the ideal hole (2) in the radial direction is machined on the circumferential surface of the workpiece (1);
An angle gauge (5) and an ultrasonic probe (4) arranged on the circumferential surface of the workpiece (1) and defined by the positioning mark (6) in the circumferential arrangement range, measure thickness data of the actual hole (3) relative to the circumferential surface of the workpiece (1) in the current workpiece section based on ultrasonic thickness measurement and angle measurement and obtain angle data of the actual hole (3) relative to the ideal hole (2) when the drilling tool system starts machining or feeding to a certain distance along the axial direction of the workpiece (1);
and calculating and obtaining radial deviation of the actual hole (3) relative to the ideal hole (2) on the current workpiece section based on the thickness data, the angle data and the workpiece (1), wherein the radial deviation is decomposed into components in mutually perpendicular directions and provides deviation data for deviation correction control of deep hole machining.
2. Method according to claim 1, characterized in that the deviation during deep hole machining is divided into a radial deviation of the actual hole (3) with respect to the workpiece cross-section and an axial deviation in the axial machining travel direction, which radial deviation indicates the axial deviation based on the rate of change of the radial deviation of several adjacent or spaced workpiece cross-sections to characterize the travel direction deviation during deep hole machining.
3. Method according to claim 1 or 2, characterized in that the angular gauge (5) and the ultrasonic probe (4) are moved axially relative to the workpiece (1) in coordination with the dynamic feed of drilling system deep hole machining, with the ultrasonic probe (4) being moved along the circumferential surface of the workpiece (1) and taking thickness data measurements.
4. A method according to claim 3, characterized in that the ultrasonic probe (4) is moved circumferentially relative to the workpiece (1) and at least covers a set detection range to measure distance data of the actual hole (3) from the circumferential surface of the workpiece (1) and to form a functional relation of the distance data relative to the deviation angle of the ultrasonic probe (4) from the positioning mark (6), wherein the distance data and the angular deviation of the position are determined as thickness data and angle data of the actual hole (3), respectively, in case a functional relation extremum of the distance data relative to the deviation angle is obtained.
5. Method according to claim 4, characterized in that in the functional relation of the deviation angle of the distance data with respect to the ultrasound probe (4) and the positioning mark (6), the degree of symmetry of the functional relation with respect to the vertical axis of the extreme position is used to characterize the circumference of the actual hole (3) and the quality of the hole formation of the actual hole (3) is characterized on the basis of the derivative relation of the functional relation in the range containing the extreme value and the rate of change of the derivative relation in the axial direction.
6. Method according to claim 4, characterized in that the workpiece (1) is provided with the positioning mark (6) arranged in the axial direction at the circumferential surface nearest to the ideal hole (2), wherein the positioning mark (6) is a shallow wire groove with graduations (7), the graduations (7) being used to indicate the extension distance in the axial direction, so that the shallow wire groove can provide a positioning reference for components arranged at the circumferential surface of the workpiece (1).
7. A method according to claim 3, characterized in that the angle gauge (5) and the ultrasonic probe (4) are adjusted in movement by a holding assembly provided to the machine tool such that the holding assembly is capable of controlling the movement of the ultrasonic probe (4) in the circumferential direction and the movement of the angle gauge (5) in the axial direction, respectively.
8. Method according to claim 7, characterized in that, with the movement control of the ultrasonic probe (4) and the angle gauge (5) by a holding assembly, the detection range of the ultrasonic probe (4) at the circumferential surface of the workpiece (1) is set to cover a part of the circumference of the positioning mark (6), so that the movement of the ultrasonic probe (4) in the circumferential direction covers the detection range at least once on a single section and exhibits a law of reciprocating movement based on a section change in the axial direction.
9. A method according to claim 3, characterized in that the movement of the angle gauge (5) and the ultrasound probe (4) in the axial direction is set in such a way that the movement distance is equidistant or the movement distance is locally reduced, wherein in the case of a local reduction of the movement distance in the axial direction the detection range of the ultrasound probe (4) in the next section is adjusted in such a way that it is positively correlated with the angle data of the current section.
10. A method according to claim 1 or 2, characterized in that the radial deviations are resolved in mutually perpendicular directions as follows:
The components of the radial deviation in the Y axis are: ly= [ (D/2) -b ]. Cos theta. -R,
The components of the radial deviation in the X axis are: lx= [ (D/2) -b ]. Sinθ,
The method comprises the steps of enabling the diameter of an outer circle of a workpiece (1) to be D, enabling a machining aperture to be D, enabling the distance between the center of an ideal hole (2) and the axis of the workpiece (1) to be R, enabling angle data of an actual hole (3) relative to the ideal hole (2) to be theta, and enabling thickness data of the actual hole (3) measured by an ultrasonic probe (4) to be b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211742930.5A CN116237818B (en) | 2022-12-29 | 2022-12-29 | Offset measuring method for deep hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211742930.5A CN116237818B (en) | 2022-12-29 | 2022-12-29 | Offset measuring method for deep hole machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116237818A CN116237818A (en) | 2023-06-09 |
| CN116237818B true CN116237818B (en) | 2024-07-02 |
Family
ID=86628861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211742930.5A Active CN116237818B (en) | 2022-12-29 | 2022-12-29 | Offset measuring method for deep hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116237818B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673382B (en) * | 2022-12-29 | 2023-05-02 | 广东中海万泰技术有限公司 | Deep hole machining method and device |
| CN117253198B (en) * | 2023-11-20 | 2024-01-26 | 山东大学 | Intelligent manufacturing dynamic management method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183227A (en) * | 2009-12-04 | 2011-09-14 | Sms米尔股份有限公司 | Contactless pipewall thickness measurement device and method |
| CN102494645A (en) * | 2011-11-09 | 2012-06-13 | 中北大学 | Core space dimension precision measurement apparatus based on ultrasound and method thereof |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10224635A1 (en) * | 2002-06-04 | 2003-12-24 | Sms Meer Gmbh | Method and device for determining the eccentricity of a hollow block |
| EP1491886B1 (en) * | 2003-06-23 | 2006-10-18 | Zumbach Electronic Ag | Apparatus and method for calibration and ultrasound inspection of cylindrical bodies |
| WO2007024001A1 (en) * | 2005-08-26 | 2007-03-01 | Sumitomo Metal Industries, Ltd. | Ultrasonic flaw detection method and method of producing seamless tube |
| US8439839B2 (en) * | 2007-06-04 | 2013-05-14 | Panasonic Corporation | Ultrasonic diagnosis device and ultrasonic probe for use in ultrasonic diagnosis device |
| CN201792005U (en) * | 2010-08-27 | 2011-04-13 | 江苏曙光华阳钻具有限公司 | Wall thickness tracking measurement device for drilling of inner bores of drill collars |
| DE102011115254A1 (en) * | 2011-09-27 | 2013-03-28 | Fritz Studer Ag | Machine tool and method for measuring a workpiece |
| CN102658382B (en) * | 2012-05-03 | 2014-02-26 | 山西环界石油钻具制造股份有限公司 | Automatic correction bracket for machining deep holes of non-magnetic drilling tools |
| JP5393864B1 (en) * | 2012-10-24 | 2014-01-22 | 株式会社牧野フライス製作所 | Work shape measuring method and work shape measuring apparatus |
| CN104266570B (en) * | 2014-08-15 | 2017-02-15 | 上海理工大学 | Station axis precision measuring and adjusting method for disc type multi-station machine tool |
| CN205587674U (en) * | 2015-08-24 | 2016-09-21 | 佛山新成洪鼎机械技术有限公司 | Axle automatic positioning deep hole blind hole processing technology |
| CN105203068B (en) * | 2015-10-12 | 2018-02-16 | 中北大学 | Deep hole linear degree detection method based on sonigauge |
| CN105382632B (en) * | 2015-11-13 | 2018-03-23 | 中北大学 | Rear-mounted deep hole machining on-line checking and deviation correcting device |
| CN105423850B (en) * | 2015-12-16 | 2019-05-21 | 西安陕鼓备件辅机制造有限公司 | A kind of inspection measurer for examining workpiece morpheme size |
| JP2017129439A (en) * | 2016-01-20 | 2017-07-27 | トヨタ自動車株式会社 | Coordinate position measurement method of processed hole |
| CN108247302B (en) * | 2018-04-04 | 2024-02-27 | 四川华都核设备制造有限公司 | Method and device for processing blind hole rod travel sleeve of control rod driving mechanism |
| CN208214400U (en) * | 2018-04-10 | 2018-12-11 | 西安工业大学 | A kind of deep hole machining deflection measurement device |
| CN108426544A (en) * | 2018-04-10 | 2018-08-21 | 西安工业大学 | High-effective deep hole deflection on-line measurement device and measurement method |
| CN108645359A (en) * | 2018-05-31 | 2018-10-12 | 华中科技大学 | A kind of rotary body wall thickness detection method |
| US10982955B2 (en) * | 2018-07-12 | 2021-04-20 | Olympus America Inc. | Ultrasonic measurement of surface profile and average diameter of a tube |
| CN109060961B (en) * | 2018-08-01 | 2020-04-14 | 大连理工大学 | Thick-wall pipeline inclined crack accurate quantification method based on TOFD circumferential scanning image |
| CN208696377U (en) * | 2018-08-02 | 2019-04-05 | 中北大学 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
| CN111413412B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN110553611A (en) * | 2019-07-26 | 2019-12-10 | 中国航空工业集团公司济南特种结构研究所 | tool normal hole position degree detection method based on three-coordinate measuring machine |
| JP2021088043A (en) * | 2019-12-06 | 2021-06-10 | 大同特殊鋼株式会社 | Estimation method for bending amount of machining hole, and drilling method using the same |
| CN111829479B (en) * | 2020-08-13 | 2024-07-23 | 东北大学 | Device and method for measuring shape error of inner surface of deep hole of part |
| CN113547236A (en) * | 2021-07-01 | 2021-10-26 | 上海美维电子有限公司 | Laser drilling machine performance detection method |
| CN113679446A (en) * | 2021-08-06 | 2021-11-23 | 苏州希声科技有限公司 | Real-time feedback type intelligent drilling tool and drilling method |
| CN114087972B (en) * | 2021-12-02 | 2022-11-29 | 北京理工大学 | Device for measuring shape error of long hole part |
| CN114755312B (en) * | 2022-03-04 | 2024-05-17 | 中南大学 | Method for detecting defects of inner holes of cylindrical member |
| CN114485510B (en) * | 2022-04-14 | 2023-03-21 | 南京泰普森自动化设备有限公司 | Hole site measuring method and measuring device thereof |
| CN116607929A (en) * | 2023-06-06 | 2023-08-18 | 中国煤炭地质总局一一九勘探队 | Automatic deviation correcting method for drilling in deep hole drilling of coal field drilling |
-
2022
- 2022-12-29 CN CN202211742930.5A patent/CN116237818B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183227A (en) * | 2009-12-04 | 2011-09-14 | Sms米尔股份有限公司 | Contactless pipewall thickness measurement device and method |
| CN102494645A (en) * | 2011-11-09 | 2012-06-13 | 中北大学 | Core space dimension precision measurement apparatus based on ultrasound and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116237818A (en) | 2023-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116237818B (en) | Offset measuring method for deep hole machining | |
| Nieslony et al. | Surface quality and topographic inspection of variable compliance part after precise turning | |
| Sheth et al. | Experimental investigation, prediction and optimization of cylindricity and perpendicularity during drilling of WCB material using grey relational analysis | |
| CN103567815B (en) | Based on the test of numerical control machine tool cutting Thermal Error and the evaluation method of milling aperture | |
| CN111993159A (en) | In-place non-contact detection method for shaft workpieces | |
| CN115673382B (en) | Deep hole machining method and device | |
| JP2012159499A (en) | Measuring apparatus and measuring method for ball screw | |
| CN105783842B (en) | A kind of detection method of big pitch external screw thread milled surface topography distribution character | |
| CN108195321A (en) | A kind of ball line slideway auxiliary raceway depth of parallelism On-line Measuring Method | |
| CN115890336B (en) | Positioning drilling method for deep hole machining | |
| CN110076628A (en) | A method of compensation finishing becomes groove width thread error | |
| Maščeník et al. | Determining the exact value of the shape deviations of the experimental measurements | |
| JP2001030141A (en) | Thin pipe machining method and its device | |
| Miko et al. | Vibrations in the machining system of the vertical machining center | |
| CN202656009U (en) | Part processing accuracy online detection system facing numerically controlled lathe | |
| Peterka et al. | Analysis of form error and roughness of hardened steel workpieces internally turned with different tools in long overhangs | |
| Gerken et al. | In-process compensation of straightness deviation in BTA deep hole drilling using experimental and simulative analysis | |
| Gerken et al. | Development and analysis of a mechatronic system for in-process monitoring and compensation of straightness deviation in BTA deep hole drilling | |
| Mascenik et al. | Component selected parametres geometrical tolerance value experimental specification | |
| CN105729244B (en) | The blind valve shaft hole coaxality measurement process in hydraulic turbine large valve body both ends | |
| Maščeník et al. | Component Selected Parametres Geometrical Tolerance Value Experimental Specification | |
| CN113609620B (en) | Servo dynamic stiffness identification method for feeding system of ultra-precise machine tool | |
| CN205363291U (en) | Omnipotent space angle spot facing work locator | |
| CN112364454B (en) | Machine tool weak component identification method based on modal mass distribution matrix | |
| Abellán Nebot | Prediction and improvement of part quality in multi-station machining systems applying the Stream of Variation model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |