CN114485408A - High-precision optical detection device - Google Patents
High-precision optical detection device Download PDFInfo
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- CN114485408A CN114485408A CN202210396170.0A CN202210396170A CN114485408A CN 114485408 A CN114485408 A CN 114485408A CN 202210396170 A CN202210396170 A CN 202210396170A CN 114485408 A CN114485408 A CN 114485408A
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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Abstract
The application provides a high-precision optical detection device, which comprises a machine shell, a bearing mechanism and an acquisition mechanism, wherein the bearing mechanism and the acquisition mechanism are arranged in the machine shell, the bearing mechanism comprises an installation seat and a bearing piece capable of being turned on the installation seat, and the bearing piece is provided with two installation grooves for installing workpieces in parallel along a first direction; the acquisition mechanism comprises two light-emitting pieces arranged along the first direction and a distance measuring piece positioned between the two light-emitting pieces; the central axis of any one of the light-emitting pieces passes through the center of one of the workpieces, a connecting line between the centers of the two light-emitting pieces is defined as a first straight line, a perpendicular line from the center of the distance measuring piece to the first straight line is defined as a second straight line, and the second straight line intersects at the midpoint of the first straight line. The scheme can prevent the problem of graphic display deviation caused by the fact that the distance between the two workpieces and the distance measuring piece is different.
Description
Technical Field
The application relates to the technical field of optical detection, in particular to a high-precision optical detection device.
Background
The optical image measuring instrument amplifies the measured object by the optical amplifying mechanism, acquires image characteristics through the CCD camera system and sends the image characteristics to the computer, and can efficiently detect the contour, the surface shape size, the angle and the position degree of various complex and precise parts, and perform microscopic detection and quality control. In order to satisfy observation fields of different sizes, the optical magnifying mechanism may generally include a panoramic observation optical path structure for obtaining a wide-range wide field of view and a magnified observation optical path structure for obtaining a local micro field of view, and may further switch the wide field of view or the micro field of view as needed.
In the use process of the optical image measuring instrument, a workpiece is generally irradiated by a surface irradiation light source, a light source with a specific wavelength is received by a light source confocal sensor, the displacement value of the optical scale is rapidly read, and a specific workpiece graph is obtained through the operation of a software module, so that an operator can conveniently perform image and shadow comparison to judge deviation.
In the specific detection process of the size of the workpiece, the mode that a single light source detects a single workpiece is low in efficiency, and when a plurality of workpieces are detected by a plurality of light sources at the same time, due to the deviation of the positions of the workpieces, the deviation of light source signals reflected by different positions of the workpieces, which is detected by a light source confocal sensor, is caused, so that the complete image information of the workpieces cannot be displayed simultaneously on the same screen display device.
Disclosure of Invention
Therefore, it is desirable to provide a high-precision optical inspection apparatus capable of displaying complete image information of a plurality of workpieces simultaneously, so as to solve the above-mentioned problems.
The embodiment of the application provides a high-precision optical detection device, which comprises a machine shell, a bearing mechanism and a collecting mechanism, wherein the bearing mechanism and the collecting mechanism are arranged in the machine shell,
the bearing mechanism comprises an installation seat and a bearing piece capable of being turned over on the installation seat, wherein the bearing piece is provided with two installation grooves used for installing workpieces in parallel along a first direction;
the acquisition mechanism comprises two light-emitting pieces arranged along the first direction and a distance measuring piece positioned between the two light-emitting pieces;
the central axis of any one of the light-emitting pieces passes through the center of one of the workpieces, a connecting line between the centers of the two light-emitting pieces is defined as a first straight line, a perpendicular line from the center of the distance measuring piece to the first straight line is defined as a second straight line, and the second straight line intersects at the midpoint of the first straight line.
In at least one embodiment of the present application, the light emitting member includes a plurality of light beads and a housing disposed around the plurality of light beads;
the acquisition mechanism further comprises at least two calibration pieces arranged on the outer wall of the shell, and the at least two calibration pieces are used for emitting infrared rays along the vertical direction so as to detect corner positions of the workpiece.
In at least one embodiment of the present application, the number of the calibration members is two;
when the illuminating part and the distance measuring part run, the two calibration parts are positioned at the diagonal parts of the workpiece when observed along the vertical direction.
In at least one embodiment of the present application, the carrier mechanism further includes a first positioning member and a second positioning member;
the first positioning piece is abutted against the workpiece and movably arranged on the bearing piece along the first direction so as to push the workpiece to move along the first direction;
the second positioning part is abutted against the workpiece and movably arranged on the bearing part along a second direction so as to push the workpiece to move along the second direction, wherein the second direction is perpendicular to the first direction.
In at least one embodiment of the present application, the bearing component further defines a first groove and a second groove communicated with the mounting groove;
the first positioning piece is movably arranged in the first groove along a first direction;
the second positioning piece is movably arranged in the second groove along a second direction.
In at least one embodiment of the present application, the first positioning element has a first surface disposed away from the workpiece, and the first slot has a second surface disposed facing the first surface, wherein the first surface and the second surface are provided with magnetic elements having the same polarity for pushing the workpiece to move in a first direction in the first slot;
the second positioning piece is provided with a third face deviating from the workpiece, the second groove is provided with a fourth face facing the third face, wherein the third face and the fourth face are provided with magnetic parts with the same polarity so as to push the workpiece to move in the second groove along the second direction.
In at least one embodiment of the present application, the high-precision optical detection apparatus further includes a magnetic mechanism connected to the magnetic member, and the magnetic mechanism is configured to change the strength of the magnetic property of the magnetic member, so that the magnetic member can push the workpiece to move different distances along the first direction or the second direction.
In at least one embodiment of the present application, the high-precision optical inspection apparatus further includes a turnover mechanism;
the turnover mechanism penetrates through the mounting seat and is fixed on the bearing piece and used for driving the bearing piece to turn over.
In at least one embodiment of the present application, the turnover mechanism includes an air inlet pipe, a vacuum generator, a vacuum pressure pipe and a mounting structure, which are connected in sequence;
the bearing piece is fixed on the mounting structure, and the vacuum pressure pipe is connected on the mounting structure so as to be matched with the air inlet pipe and the vacuum generator to adsorb the inner cavity of the bearing piece into a hollow part so as to fix a workpiece in the mounting groove.
In at least one embodiment of the present application, the high-precision optical inspection apparatus further comprises a noise-damping member;
the noise elimination piece is sleeved on the vacuum generator and used for reducing noise generated by the vacuum generator.
The application has at least the following beneficial effects:
1. through setting up two illuminating parts along first direction to locate the range finding piece between two illuminating parts, so that the range finding piece simultaneously measures the light that is sent by two illuminating parts and is sent back through corresponding work piece, thereby increases the efficiency that detects. Furthermore, the central axis of any luminous piece passes through the center of one luminous piece, so that the two luminous pieces are arranged right opposite to the two workpieces, the problem of lighting deviation caused by the size deviation of the luminous pieces and the workpieces is prevented, and the lighting precision is guaranteed. Furthermore, the second straight line and the first straight line are intersected at the middle point of the first straight line, so that the two workpieces are symmetrically arranged at two sides of the second straight line, and the distances from the light reflected by the two workpieces to the distance measuring piece are equal, thereby preventing the problem of graphic display deviation caused by the fact that the distances from the two workpieces to the distance measuring piece are different.
2. At least two calibration pieces are arranged on the outer wall of the shell, so that when the workpiece is positioned in an inaccurate state or deviation is generated due to human factors, at least one of the at least two calibration pieces is projected to the upper surface of the workpiece and is blocked, at least one other calibration piece directly crosses the workpiece and cannot detect the workpiece, and therefore the deviation of the workpiece is judged through software, an alarm is sent out to remind abnormality, and the workpiece detection precision is guaranteed. And the workpiece is moved until the infrared rays emitted by the at least two calibration pieces are partially blocked on the outer wall of the workpiece and partially pass through the workpiece, so that the position precision of workpiece detection is ensured, and the accuracy of detection data is ensured.
3. Through set up first groove and the second groove with the mounting groove intercommunication on bearing the piece, and set up one in the first groove and can follow the first direction and promote the first setting element that the work piece removed, set up one in the second inslot and can follow the second direction and promote the second setting element that the work piece removed, thereby when there is position deviation at the work piece, through the removal of controlling first setting element and second setting element, and the detection of two at least calibration pieces of cooperation, in order to promote the work piece to normal detection station, thereby prevent the emergence of detection error, better assurance the precision of detection.
4. Through setting up tilting mechanism to place carrier on tilting mechanism, thereby in the testing process of the data of work piece, through the upset work piece so that the different side of work piece receives the shining of illuminating part, and with light reflection to the range finding piece on, thereby realize the all-round detection of work piece, avoid the dead angle position to shine and influence the precision that the work piece detected. Further, adsorb the work piece on bearing the piece through the mode of inhaling the vacuum to make on the work piece can be firm being fixed in bearing the piece, prevent to lead to the work piece skew and appear influencing the problem of work piece detection precision because equipment striking or rock. Furtherly again, intake pipe and vacuum pressure pipe are hose construction, press hose construction such as pipe through setting up intake pipe and vacuum for vacuum generator is when the upset, and intake pipe and vacuum pressure pipe can rotate along with vacuum generator, and presses the pipe pivoted in-process at intake pipe and vacuum, can not influence normal function of ventilating, thereby guaranteed to hold the vacuum environment in the carrier, further guaranteed the absorptive stability of work piece. Furthermore, the noise of the vacuum generator is reduced by sleeving the noise elimination piece on the vacuum generator.
Drawings
Fig. 1 is a schematic perspective view of a high-precision optical detection device according to an embodiment of the present disclosure.
Fig. 2 is a schematic perspective view of the supporting mechanism and the turnover mechanism shown in fig. 1.
Fig. 3 is an exploded view of the carriage and flipper shown in fig. 2.
Fig. 4 is a schematic perspective view of the collecting mechanism shown in fig. 1.
Fig. 5 is a front view of fig. 4 taken along a first direction and hiding the lamp bead.
Description of the main elements
100. A high precision optical detection device; 10. a housing; 20. a carrying mechanism; 21. a mounting seat; 22. a carrier; 221. mounting grooves; 222. a first groove; 2221. a second face; 223. a second groove; 2231. a fourth surface; 30. a collection mechanism; 31. a light emitting member; 311. a lamp bead; 312. a housing; 32. a distance measuring member; 33. a calibration piece; 34. a fixed seat; 35. a 3D camera; 40. a first positioning member; 41. a first side; 50. a second positioning member; 51. a third surface; 60. a turnover mechanism; 61. an air inlet pipe; 62. a vacuum generator; 63. pressing a tube in vacuum; 64. a mounting structure; 65. a carrier plate; 66. a motor; 70. a muffler; 200. a workpiece; A. a first direction; B. a second direction; l1, first straight line; l2, second straight line.
Detailed Description
The embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.
The embodiment of the application provides a high-precision optical detection device, which comprises a machine shell, a bearing mechanism and a collecting mechanism, wherein the bearing mechanism and the collecting mechanism are arranged in the machine shell,
the bearing mechanism comprises an installation seat and a bearing piece capable of being turned over on the installation seat, wherein the bearing piece is provided with two installation grooves used for installing workpieces in parallel along a first direction;
the acquisition mechanism comprises two light-emitting pieces arranged along the first direction and a distance measuring piece positioned between the two light-emitting pieces;
the central axis of any one of the light-emitting pieces passes through the center of one of the workpieces, a connecting line between the centers of the two light-emitting pieces is defined as a first straight line, a perpendicular line from the center of the distance measuring piece to the first straight line is defined as a second straight line, and the second straight line intersects at the midpoint of the first straight line.
Above-mentioned scheme is through setting up two illuminating parts along first direction to locate the range finding piece between two illuminating parts, so that the light that the range finding piece simultaneous measurement was sent and was sent back through corresponding work piece by two illuminating parts, thereby increase the efficiency that detects. Furthermore, the central axis of any luminous piece passes through the center of one luminous piece, so that the two luminous pieces are arranged right opposite to the two workpieces, the problem of lighting deviation caused by the size deviation of the luminous pieces and the workpieces is prevented, and the lighting precision is guaranteed. Furthermore, the second straight line and the first straight line are intersected at the middle point of the first straight line, so that the two workpieces are symmetrically arranged at two sides of the second straight line, and the distances from the light reflected by the two workpieces to the distance measuring piece are equal, thereby preventing the problem of graphic display deviation caused by the fact that the distances from the two workpieces to the distance measuring piece are different.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1-5, the present application provides a high-precision optical inspection apparatus 100, which includes a housing 10, a carrying mechanism 20 disposed in the housing 10, and an acquisition mechanism 30. The carrying mechanism 20 is used for carrying the workpiece 200, and the collecting mechanism 30 is used for emitting light and collecting the light emitted back from the workpiece 200, so as to be converted into corresponding image information by a specific software system, so as to perform comparison detection on the workpiece 200. It can be understood that the software system described above is an existing software system that can generate an image based on light, and is not described herein again.
In one embodiment, the workpiece 200 is a cell phone back case.
Further, the carrying mechanism 20 includes a mounting seat 21 and a carrying member 22 capable of being turned on the mounting seat 21, and in a specific embodiment, two mounting slots 221 for mounting the workpiece 200 are formed in the carrying member 22 in parallel along the first direction a. The collecting mechanism 30 includes two light emitting members 31 arranged in the first direction a and a distance measuring member 32 located between the two light emitting members 31. Preferably, the central axis of any one of the light emitting members 31 passes through the center of one of the workpieces 200, and a connecting line between the centers of the two light emitting members 31 is defined as a first straight line L1, and a perpendicular line from the center of the distance measuring member 32 to the first straight line L1 is defined as a second straight line L2, and the second straight line L2 intersects at the midpoint of the first straight line L1.
The first direction a is any direction parallel to the horizontal plane, and the specific direction is determined according to the specific direction in which the workpiece 200 moves.
According to the scheme, the two light emitting pieces 31 are arranged along the first direction A, and the distance measuring piece 32 is arranged between the two light emitting pieces 31, so that the distance measuring piece 32 can measure the light rays emitted by the two light emitting pieces 31 and emitted back through the corresponding workpiece 200 at the same time, and the detection efficiency is improved. Further, the central axis of any one of the light emitting members 31 passes through the center of one of the light emitting members 31, so that the two light emitting members 31 are arranged opposite to the two workpieces 200, thereby preventing the problem of lighting deviation caused by the size deviation of the light emitting members 31 and the workpieces 200 and ensuring the lighting precision. Furthermore, the second straight line L2 intersects the first straight line L1 at the midpoint of the first straight line L1, so that the two workpieces 200 are symmetrically arranged on both sides of the second straight line L2, and the distances from the distance measuring piece 32 to which the light reflected by the two workpieces 200 reaches are equal, thereby preventing the problem of graphic display deviation caused by the non-uniform distance between the two workpieces 200 and the distance measuring piece 32.
In an embodiment, the mounting seat 21 and the bearing 22 are integrally formed, the mounting seat 21 is a block structure, and the bearing 22 is a substantially flat plate structure. It is obvious that the shape and arrangement of the mounting seat 21 and the carrier 22 are not limited thereto, and are determined according to the specific workpiece 200 and the mounting manner.
Further, the light emitting component 31 includes a plurality of lamp beads 311 and a casing 312 disposed around the plurality of lamp beads 311, and the collecting mechanism 30 further includes at least two calibration components 33 disposed on an outer wall of the casing 312. The at least two aligning members 33 are used to emit infrared rays in a vertical direction to detect corner portions of the workpiece 200.
The scheme ensures the detection accuracy of the workpiece 200 by arranging at least two calibration pieces 33 on the outer wall of the shell 312, so that when the workpiece 200 is positioned incorrectly or is deviated due to human factors, at least one of the at least two calibration pieces 33 is projected to the upper surface of the workpiece 200 to be blocked, and at least another calibration piece 33 directly passes over the workpiece 200 to be incapable of detecting the workpiece 200, thereby combining to judge the deviation of the workpiece 200 through software, and further sending an alarm to remind abnormality. And the workpiece 200 is moved until the infrared rays emitted by the at least two calibration pieces 33 are partially blocked by the outer wall of the workpiece 200 and partially pass through the workpiece 200, so that the position accuracy of the detection of the workpiece 200 is ensured, and the accuracy of the detection data is ensured.
In one embodiment, the number of the calibration members 33 is two, and the two calibration members 33 are located at diagonal positions of the workpiece 200 when viewed in a vertical direction when the illuminating member 31 and the distance measuring member 32 are operated. Specifically, when the workpiece 200 is a substantially rectangular rear shell structure, the two aligning members 33 are arranged to intersect with each other, and the intersection points with the corner portions of the rear shell are located on the same vertical line. Preferably, the calibration member 33 projects infrared rays in a vertical direction, and the infrared rays are infrared beams having a certain width, so that during the infrared ray projection process, part of the infrared beams are blocked by the rear housing, and part of the infrared beams pass through the outer housing 312 without being blocked, and at this time, the detection electronic components (not shown) disposed in the housing can detect the position of the workpiece 200 accurately. If the detection electronics detect that the light beam generated by one of the alignment members 33 is completely blocked by the rear housing and the light beam generated by the other alignment member 33 passes through the rear housing completely without blocking, the positional deviation of the rear housing is indicated.
It is understood that the number, the arrangement position and the arrangement angle of the calibration members 33 are not limited thereto, and as in another embodiment, the number of the calibration members 33 may be four for more precise determination of the placement position of the workpiece 200. When the light emitting member 31 and the distance measuring member 32 are operated, the four calibration members 33 are located at four corners of the workpiece 200 as viewed in a vertical direction, thereby more specifically detecting the placement position of the workpiece 200. Further, four calibration members 33 may also be disposed at an angle on the outer wall of the housing 312.
It should be noted that, after the positions of the four corners of the detected workpiece 200 are correct, the position accuracy of the side edges extending from each corner to both sides is correct, so that the position accuracy of only one point is measured, the position accuracy of the whole workpiece 200 can be ensured, the complicated operation of ensuring the position accuracy of the workpiece 200 by measuring different positions of four sides of the workpiece 200 for many times is avoided, the process steps are reduced, and the labor cost and the production cost are reduced.
In one embodiment, the light emitting member 31 includes, but is not limited to, a planar light source.
In one embodiment, the light beads 311 include, but are not limited to, LED light beads 311.
In one embodiment, range finding piece 32 includes, but is not limited to, a spectral confocal sensor.
It should be noted that, when the distance measuring unit 32 is a spectral confocal sensor, the white light emitted by the lamp bead 311 is reflected by the workpiece 200 to form a plurality of colored lights with different wave bands, and the spectral confocal sensor receives the colored light with the specified wave band to measure the specific position characteristics of the reflection point, and the position characteristics are pieced together to form a pattern with the specific shape and size of the workpiece 200.
In one embodiment, calibration piece 33 includes, but is not limited to, an infrared sensor.
In order to better ensure the positioning accuracy of the workpiece 200, the bearing mechanism 20 further includes a first positioning member 40 and a second positioning member 50. The first positioning element 40 abuts against the workpiece 200, and the first positioning element 40 is movably disposed on the carrier 22 along the first direction a to push the workpiece 200 to move along the first direction a. The second positioning element 50 abuts against the workpiece 200, and the second positioning element 50 is movably disposed on the carrier 22 along a second direction B to push the workpiece 200 to move along the second direction B, wherein the second direction B is perpendicular to the first direction a.
The second direction B is any direction parallel to the horizontal plane and perpendicular to the first direction a, and the specific direction is determined according to the specific direction of the movement of the workpiece 200.
Further, the supporting member 22 further defines a first groove 222 and a second groove 223 communicated with the mounting groove 221, the first positioning member 40 is movably disposed in the first groove 222 along the first direction a, and the second positioning member 50 is movably disposed in the second groove 223 along the second direction B. When the at least two calibration members 33 detect the deviation of the workpiece 200, the at least two calibration members 33 transmit the position deviation information to the control system through the electrical signal, and the control system controls the corresponding structure to drive the first positioning member 40 and the second positioning member 50 to push the workpiece 200 to the specific position along the first direction a and the second direction B.
Still further, the first positioning member 40 has a first face 41 disposed away from the workpiece 200, and the first slot 222 has a second face 2221 disposed facing the first face 41. The first surface 41 and the second surface 2221 are provided with magnetic members (not shown) with the same polarity, and the magnetic members are used for pushing the workpiece 200 to move in the first direction a in the first slot 222. The second positioning member 50 has a third surface 51 facing away from the workpiece 200, and the second groove 223 has a fourth surface 2231 facing the third surface 51, wherein the third surface 51 and the fourth surface 2231 are provided with magnetic members having the same polarity, and the magnetic members are used for pushing the workpiece 200 to move in the second direction B in the second groove 223.
Further, the high-precision optical inspection apparatus 100 further includes a magnetic mechanism (not shown) connected to the magnetic member, wherein the magnetic mechanism is used for changing the strength of the magnetic force of the magnetic member, so that the magnetic member can push the workpiece 200 to move different distances along the first direction a or the second direction B.
It should be noted that, in an embodiment, the magnetic mechanism and the magnetic member are combined to form an electromagnet structure, and the magnitude of the magnetic force of the magnetic member can be changed by changing the magnitude of the current of the winding set in the electromagnet, so as to realize the directional pushing of the workpiece 200.
According to the scheme, the first groove 222 and the second groove 223 which are communicated with the mounting groove 221 are formed in the bearing piece 22, the first positioning piece 40 capable of pushing the workpiece 200 to move along the first direction A is arranged in the first groove 222, the second positioning piece 50 capable of pushing the workpiece 200 to move along the second direction B is arranged in the second groove 223, and therefore when the workpiece 200 has position deviation, the workpiece 200 is pushed to a normal detection station by controlling the movement of the first positioning piece 40 and the second positioning piece 50 and matching with the detection of the at least two calibration pieces 33, the detection error is prevented, and the detection precision is better guaranteed.
Further, the capturing mechanism 30 further includes a fixing base 34 and a 3D camera 35. Specifically, the light emitting element 31, the distance measuring element 32, and the calibration element 33 are fixed to an end of the fixing base 34 facing the workpiece 200, and the 3D camera 35 is fixed to an end of the fixing base 34 facing away from the workpiece 200. Specifically, the 3D camera 35 is electrically connected to the distance measuring unit 32, so as to be used for acquiring specific image information of the workpiece 200 after the distance measuring unit 32 detects specific size and shape characteristics of the workpiece 200, and transmitting the image information to the cloud for storage, and facilitating comparison and viewing by an operator.
In order to more precisely form the overall pattern of the workpiece 200, the high-precision optical inspection apparatus 100 further includes a flipping mechanism 60. The turnover mechanism 60 passes through the mounting seat 21 and is fixed on the bearing part 22, and is used for driving the bearing part 22 to turn over, so that in the detection process of the data of the workpiece 200, the workpiece 200 is turned over, so that different sides of the workpiece 200 are irradiated by the light-emitting part 31, and light is reflected to the distance measuring part 32, thereby realizing the all-dimensional detection of the workpiece 200, and avoiding the influence on the detection precision of the workpiece 200 due to the fact that dead angle parts cannot be irradiated.
The above-mentioned dead angle portion is a shadow portion formed when the light emitting element 31 irradiates, and the workpiece 200 itself blocks the shadow portion, so that the light cannot be directly irradiated to the workpiece 200.
Further, the turnover mechanism 60 includes an air inlet pipe 61, a vacuum generator 62, a vacuum pressure pipe 63 and a mounting structure 64 connected in sequence. The carrier 22 is fixed on the mounting structure 64, and the vacuum pressure tube 63 is connected to the mounting structure 64 to cooperate with the air inlet tube 61 and the vacuum generator 62 to suck the inner cavity of the carrier 22 into a hollow state, so as to fix the workpiece 200 in the mounting groove 221.
The above scheme adsorbs the workpiece 200 on the bearing piece 22 in a vacuum suction mode, so that the workpiece 200 can be stably fixed on the bearing piece 22, and the problem that the detection precision of the workpiece 200 is influenced due to the deviation of the workpiece 200 caused by equipment impact or shaking is prevented. Further, intake pipe 61 and vacuum press pipe 63 are the hose construction, press the hose constructions such as pipe 63 through setting up intake pipe 61 and vacuum for vacuum generator 62 is when the upset, and intake pipe 61 and vacuum press pipe 63 can rotate along with vacuum generator 62, and presses the pipe 63 pivoted in-process at intake pipe 61 and vacuum, can not influence normal ventilation function, thereby guaranteed to hold the vacuum environment in the carrier 22, further guaranteed the absorptive stability of work piece 200.
To ensure that the carrier 22 can be flipped to reveal different angles of the workpiece 200, the flipping mechanism 60 further includes a motor 66, and the mounting structure 64 is fixed to the motor 66 and is rotatable with the motor 66 along its axis.
In one embodiment, the mounting structure 64 is generally a pie-shaped structure that is axially fixed to the output shaft of the motor 66 so as to flip with the output shaft of the motor 66 when the motor 66 is in operation. Further, the mounting structure 64 further includes a bearing plate 65 disposed perpendicular to the disk, and the bearing member 22 is fixed on the bearing plate 65. Preferably, the carrier plate 65 is arranged parallel to the carrier 22 to ensure the security of the fixation of the carrier 22.
In order to prevent noise interference during operation of the vacuum generator 62, the high-precision optical detection device 100 further includes a noise damper 70. The muffler 70 is sleeved on the vacuum generator 62 for reducing noise generated by the vacuum generator 62.
In one embodiment, the muffler 70 is a hose structure, and the generating end of the vacuum generator 62 extends into the cavity of the muffler 70, so that the sound generated by the vacuum generator 62 is transmitted into the muffler 70, and the sound interference problem caused by the sound leaking to the outside is prevented.
It should be noted that, in order to ensure the accuracy of mounting and scanning the workpiece 200, the present application further includes a first driving mechanism (not shown), a second driving mechanism (not shown), and a third driving mechanism (not shown), where the first driving mechanism, the second driving mechanism, and the third driving mechanism are used to drive the carrying mechanism 20 and the collecting mechanism 30 to move, so that the workpiece 200 on the carrying mechanism 20 is disposed over against the light emitting element 31, thereby facilitating the detection of the workpiece 200.
Specifically, the supporting mechanism 20 is fixed on a first driving mechanism, and the first driving mechanism can drive the supporting mechanism 20 to move along a first direction a and a second direction B in a horizontal plane. The second driving mechanism and the third driving mechanism are disposed on the casing 10, and the collecting mechanism 30 is fixed on the second driving mechanism or the third driving mechanism and is configured to move along the first direction a or the vertical direction under the cooperation of the second driving mechanism and the third driving mechanism.
It is understood that the first driving mechanism, the second driving mechanism and the third driving mechanism are conventional three-axis driving mechanisms, and are not described herein again.
Further, the first driving mechanism, the second driving mechanism and the third driving mechanism are further provided with corresponding grating scales, so that the moving distance of the workpiece 200 along the first direction a, the second direction B and the third direction can be obtained by scanning the moving distance of the grating scales.
Still further, all be equipped with limit switch on first actuating mechanism, the second actuating mechanism and the third actuating mechanism to the distance that the restriction work piece 200 removed, thereby prevent the striking problem that work piece 200 appears because of excessive movement, guaranteed the quality of processing of work piece 200, prevent the problem of work piece 200 damage that leads to because of excessive movement.
Furthermore, the high-precision optical detection device 100 further includes a plurality of electronic components, such as an air switch, an ac filter, a connector, a light source controller, and other conventional electronic instruments for recording and generating signals, and the details are not repeated herein.
According to the scheme, the two light emitting pieces 31 are arranged along the first direction A, and the distance measuring piece 32 is arranged between the two light emitting pieces 31, so that the distance measuring piece 32 can measure the light rays emitted by the two light emitting pieces 31 and emitted back through the corresponding workpiece 200 at the same time, and the detection efficiency is improved. Further, the central axis of any one of the light emitting members 31 passes through the center of one of the light emitting members 31, so that the two light emitting members 31 are arranged opposite to the two workpieces 200, thereby preventing the problem of lighting deviation caused by the size deviation of the light emitting members 31 and the workpieces 200 and ensuring the lighting precision. Furthermore, the second straight line L2 intersects the first straight line L1 at the midpoint of the first straight line L1, so that the two workpieces 200 are symmetrically arranged at both sides of the second straight line, and the distances from the distance measuring piece 32 to which the light reflected by the two workpieces 200 reaches are equal, thereby preventing the problem of graphic display deviation caused by the fact that the distances from the two workpieces 200 to the distance measuring piece 32 are different.
While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (10)
1. A high-precision optical detection device comprises a machine shell, a bearing mechanism and a collecting mechanism which are arranged in the machine shell, and is characterized in that,
the bearing mechanism comprises an installation seat and a bearing piece capable of being turned over on the installation seat, wherein the bearing piece is provided with two installation grooves used for installing workpieces in parallel along a first direction;
the acquisition mechanism comprises two light-emitting pieces arranged along the first direction and a distance measuring piece positioned between the two light-emitting pieces;
the central axis of any one of the light-emitting pieces passes through the center of one of the workpieces, a connecting line between the centers of the two light-emitting pieces is defined as a first straight line, a perpendicular line from the center of the distance measuring piece to the first straight line is defined as a second straight line, and the second straight line intersects at the midpoint of the first straight line.
2. The high-precision optical detection device according to claim 1, wherein the light emitting member comprises a plurality of light beads and a housing disposed around the plurality of light beads;
the acquisition mechanism further comprises at least two calibration pieces arranged on the outer wall of the shell, and the at least two calibration pieces are used for emitting infrared rays along the vertical direction so as to detect corner positions of the workpiece.
3. A high precision optical inspection apparatus according to claim 2, wherein said calibration member is two;
when the illuminating part and the distance measuring part run, the two calibration parts are positioned at the diagonal parts of the workpiece when observed along the vertical direction.
4. The high-precision optical detection device according to claim 1, wherein the carrying mechanism further comprises a first positioning member and a second positioning member;
the first positioning piece is abutted against the workpiece and movably arranged on the bearing piece along the first direction so as to push the workpiece to move along the first direction;
the second positioning part is abutted against the workpiece and movably arranged on the bearing part along a second direction so as to push the workpiece to move along the second direction, wherein the second direction is perpendicular to the first direction.
5. The high-precision optical detection device according to claim 4, wherein the bearing member further defines a first groove and a second groove communicated with the mounting groove;
the first positioning piece is movably arranged in the first groove along a first direction;
the second positioning piece is movably arranged in the second groove along a second direction.
6. A high-precision optical detection device according to claim 5, wherein the first positioning element has a first surface disposed away from the workpiece, and the first slot has a second surface disposed toward the first surface, wherein the first surface and the second surface are provided with magnetic elements having the same polarity for pushing the workpiece to move in the first direction in the first slot;
the second positioning piece is provided with a third face deviating from the workpiece, the second groove is provided with a fourth face facing the third face, wherein the third face and the fourth face are provided with magnetic parts with the same polarity so as to push the workpiece to move in the second groove along the second direction.
7. The apparatus according to claim 6, further comprising a magnetic mechanism connected to the magnetic member, wherein the magnetic mechanism is configured to change the strength of the magnetic force of the magnetic member, so that the magnetic member can push the workpiece to move different distances in the first direction or the second direction.
8. The high-precision optical inspection device according to claim 1, further comprising a turnover mechanism;
the turnover mechanism penetrates through the mounting seat and is fixed on the bearing piece, and is used for driving the bearing piece to turn over.
9. The high-precision optical detection device according to claim 8, wherein the turnover mechanism comprises an air inlet pipe, a vacuum generator, a vacuum pressure pipe and a mounting structure which are connected in sequence;
the bearing piece is fixed on the mounting structure, and the vacuum pressure pipe is connected on the mounting structure so as to be matched with the air inlet pipe and the vacuum generator to adsorb the inner cavity of the bearing piece into a hollow part so as to fix a workpiece in the mounting groove.
10. The high precision optical inspection device of claim 9, further comprising a noise dampening member;
the noise elimination piece is sleeved on the vacuum generator and used for reducing noise generated by the vacuum generator.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012909A (en) * | 1998-05-25 | 2001-01-19 | Matsushita Electric Ind Co Ltd | Range finder device and camera |
| JP2001165622A (en) * | 1999-12-06 | 2001-06-22 | Canon Inc | Optical device |
| CN101603821A (en) * | 2008-06-13 | 2009-12-16 | 鸿富锦精密工业（深圳）有限公司 | The focusing method of image measurer and image measurer |
| CN106767399A (en) * | 2016-11-11 | 2017-05-31 | 大连理工大学 | The non-contact measurement method of the logistics measurement of cargo found range based on binocular stereo vision and dot laser |
| CN107044824A (en) * | 2017-03-06 | 2017-08-15 | 佛山市勾股动力信息技术有限公司 | A kind of one-touch intelligent double vision feels image measurer |
| CN207547375U (en) * | 2017-11-13 | 2018-06-29 | 东莞市兆丰精密仪器有限公司 | A kind of fully automatic high-speed perforating press |
| CN208383730U (en) * | 2018-05-15 | 2019-01-15 | 东莞市兆丰精密仪器有限公司 | A kind of universal multi-angle of view appearance detection fixture |
| CN208567788U (en) * | 2018-08-08 | 2019-03-01 | 东莞市中旺精密仪器有限公司 | More lens video measuring instruments |
| CN213301211U (en) * | 2020-11-27 | 2021-05-28 | 东莞市梵黛嘉实业有限公司 | Plastic image measuring device based on infrared ray accurate positioning |
| CN214213718U (en) * | 2020-12-03 | 2021-09-17 | 东莞市兆丰精密仪器有限公司 | Take vacuum adsorption device's rotational positioning platform |
-
2022
- 2022-04-15 CN CN202210396170.0A patent/CN114485408B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012909A (en) * | 1998-05-25 | 2001-01-19 | Matsushita Electric Ind Co Ltd | Range finder device and camera |
| JP2001165622A (en) * | 1999-12-06 | 2001-06-22 | Canon Inc | Optical device |
| CN101603821A (en) * | 2008-06-13 | 2009-12-16 | 鸿富锦精密工业（深圳）有限公司 | The focusing method of image measurer and image measurer |
| CN106767399A (en) * | 2016-11-11 | 2017-05-31 | 大连理工大学 | The non-contact measurement method of the logistics measurement of cargo found range based on binocular stereo vision and dot laser |
| CN107044824A (en) * | 2017-03-06 | 2017-08-15 | 佛山市勾股动力信息技术有限公司 | A kind of one-touch intelligent double vision feels image measurer |
| CN207547375U (en) * | 2017-11-13 | 2018-06-29 | 东莞市兆丰精密仪器有限公司 | A kind of fully automatic high-speed perforating press |
| CN208383730U (en) * | 2018-05-15 | 2019-01-15 | 东莞市兆丰精密仪器有限公司 | A kind of universal multi-angle of view appearance detection fixture |
| CN208567788U (en) * | 2018-08-08 | 2019-03-01 | 东莞市中旺精密仪器有限公司 | More lens video measuring instruments |
| CN213301211U (en) * | 2020-11-27 | 2021-05-28 | 东莞市梵黛嘉实业有限公司 | Plastic image measuring device based on infrared ray accurate positioning |
| CN214213718U (en) * | 2020-12-03 | 2021-09-17 | 东莞市兆丰精密仪器有限公司 | Take vacuum adsorption device's rotational positioning platform |
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| CN114485408B (en) | 2022-07-08 |
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