CN106813584B - Spiral bevel gear key parameter laser detection system and its detection method - Google Patents
Spiral bevel gear key parameter laser detection system and its detection method Download PDFInfo
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- CN106813584B CN106813584B CN201710208642.4A CN201710208642A CN106813584B CN 106813584 B CN106813584 B CN 106813584B CN 201710208642 A CN201710208642 A CN 201710208642A CN 106813584 B CN106813584 B CN 106813584B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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Abstract
The present invention relates to a kind of spiral bevel gear key parameter laser detection system and its detection method, the key parameter of detection includes root radius, radius of addendum and pitch error.Detection system of the invention includes cabinet, rotating mechanism, workbench, revolving platform, centring means, first laser triangular displacement sensor, second laser triangular displacement sensor, third laser triangle displacement sensor, crossbeam, the servo motor being mounted on column, column, Z axis guide rail, X-axis guide rail, data acquisition and communication system, data processing and display system.Detection method of the invention is that rotating mechanism drives gear under test to rotate, and data collection system acquires laser displacement signal in real time, and collected laser displacement signal is transmitted to data processing system and data presentation system.Detection system of the present invention, using contactless laser optical method, has obtained large increase in the accuracy and speed of detection using laser triangle displacement sensor as component is predominantly detected.
Description
Technical field
The detection system of the present invention relates to a kind of spiral bevel gear key parameter based on laser triangle displacement sensor and
Method belongs to technical field of optical detection.
Background technique
Spiral bevel gear is a kind of important transmission parts, has high transmission efficiency, transmission ratio stabilization, reliable operation and longevity
The advantages that long is ordered, the multiple fields such as automobile, lathe, aviation are therefore widely used in.Such as after spiral bevel gear is as automobile
Important transmission parts in bridge main reducing gear, quality directly influence the comfortableness and security of automobile.Spiral bevel gear exists
Underproof product may be generated in forging process, if these underproof products are used in automobile that vapour will be will affect
The safety of vehicle, therefore be also particularly important to the detection of spiral bevel gear key parameter.
Most of detection system and detection method of the gear parameter proposed at present are to be directed to spur gear and super-huge gear,
And it cannot achieve the fast accurate detection of spiral bevel gear key parameter.
The present invention proposes a kind of non-for the detection of spiral bevel gear radius of addendum, root radius and circular pitch deviation
The high-precision of contact, efficient measurement method.
Summary of the invention
Detection system and detection method based on current gear parameter cannot achieve the quick of spiral bevel gear key parameter
Precisely detection, the present invention propose a kind of spiral bevel gear key parameter detection system and detection for the detection of spiral bevel gear
Method.
Technical scheme is as follows:
A kind of spiral bevel gear key parameter laser detection system, including cabinet, rotating mechanism, workbench, revolving platform,
Centring means, first laser triangular displacement sensor, second laser triangular displacement sensor, third laser triangulation displacement sensing
Device, crossbeam, servo motor, column, Z axis guide rail, X-axis guide rail, data acquisition and communication system, data processing and display system,
The workbench is fixedly mounted on the cabinet, is equipped with the revolving platform and the column on the workbench, described
Column is vertical with the revolving platform, and the servo motor is mounted on the column；The revolving platform passes through shaft and rotation
Rotation mechanism connection, is rotated under the driving of the rotating mechanism；The centring means is equipped on the revolving platform, to
Survey spiral bevel gear is fixed on the revolving platform under the action of electromagnetic force after centering is handled and can be with institute
State revolving platform synchronous rotation；The beam vertical is mounted on the column, and the column is equipped with the Z in parallel
Axis rail；The crossbeam under the driving effect of the servo motor along the Z axis guide rail slide, the crossbeam be equipped with
The parallel X-axis guide rail of the crossbeam；First laser triangular displacement sensor, second laser triangular displacement sensor and third laser
Triangular displacement sensor is separately positioned on the crossbeam, for being measured simultaneously to the different parameters of gear under test, three
The laser triangle displacement sensor moves under the driving of the servo motor along X-axis guide rail, and third laser displacement passes
The angle of sensor can be adjusted in measurement process according to the pitch cone angle of tested gear；Data acquisition and communication system with
First laser triangular displacement sensor, second laser triangular displacement sensor are connected with third laser triangle displacement sensor,
The data transmission that data acquisition and communication system will acquire is to data processing system, data of the data processing system to acquisition
It carries out showing testing result by the display system after corresponding coordinate conversion, error separate, the Fitting Calculation.
Preferably, the revolving platform can generate the electromagnetic mechanism of electromagnetic force after being powered for one and in the whirler
It can be carried out rotation under the driving of structure, the rotating mechanism includes shaft, angular displacement sensor and servo drive system, the shaft
Upper end connect with the revolving platform, the lower end of the shaft is connect with the angular displacement sensor, the angle displacement transducer
The right end of device is connect with the servo drive system.
Preferably, it is provided with the first laser triangular displacement sensor for detecting radius of addendum on the crossbeam, uses
In the second laser triangular displacement sensor of detection root radius, and the third laser triangulation position for detecting pitch error
Displacement sensor.
Preferably, the first laser triangular displacement sensor has the first setting angle, is used to make described first to swash
Tooth crest of the laser energy direct projection that light triangular displacement sensor is emitted to gear under test；The second laser triangular displacement sensing
Device has the second setting angle, and the laser direct projection for being used to that the second laser triangular displacement sensor to be enable to be emitted is to be measured
The root portion of gear；And the third laser triangle displacement sensor has third setting angle, is used to make the third
In the laser energy direct projection to the reference circle of gear under test that laser triangle displacement sensor is emitted.
A kind of detection method of spiral bevel gear key parameter, specific step is as follows for detection:
1) robot device lays flat gear under test on revolving platform first, to be measured after the centering of centring means processing
The center of gear is overlapped with the center of the revolving platform, and then electromagnetic mechanism generates electromagnetic force after being powered, in the work of electromagnetic force
It is fixed on the revolving platform with lower gear under test, in the contact surface of the revolving platform and the gear under test
The heart is that the pole heart establishes polar coordinate system；
2) under the driving effect of servo motor, crossbeam is along Z axis guide rail slide downward, so that first laser triangular displacement passes
Sensor, second laser triangular displacement sensor and third laser triangle displacement sensor move closer to gear under test, then distinguish
Adjust the first laser triangular displacement sensor, second laser triangular displacement sensor and third laser triangle displacement sensor
Position in the X-axis guide rail, and the angle of third laser displacement sensor can be carried out according to the pitch cone angle of tested gear
It adjusts, so that gear under test is in the first laser triangular displacement sensor, second laser triangular displacement sensor and third and swash
In the standard range ability of light triangular displacement sensor；After the position of the laser triangle displacement sensor determines, record is at this time
The position of the laser triangle displacement sensor；
3) revolving platform is rotated under rotating mechanism driving, and gear under test is rotated synchronously with revolving platform,
The first laser triangular displacement sensor, second laser triangular displacement sensor and the transmitting of third laser triangle displacement sensor
Laser difference direct projection to the tooth crest of gear under test, root portion and reference circle on；Gear under test is often as revolving platform is synchronous
Rotation q ° of angle, wherein q value can be set as a certain fixed value in a data processing system, the value range of q between 0.5~2,
Data collection system acquires the laser displacement signal of primary each laser triangle displacement sensor, is denoted as d1 (t), d2 (t) respectively,
D3 (t), wherein t=1,2,3 ... n, n are the positive integer more than or equal to 30；Data collection system continuous acquisition multi-group data, so
Collected multiple groups laser displacement signal is transmitted to data processing system afterwards；
4) data processing system is first converted into polar form to the multi-group data collected, then carries out error
Data after error separate are finally fitted and are calculated by separation；First laser triangular displacement sensor and second laser three
The data that angular displacement sensor obtains can be fitted to two circular arcs, and the radius of two circular arcs is radius of addendum and root circle
Radius, third laser triangle displacement sensor obtain data can fit corresponding profile geometry, can further calculate to
The tooth pitch for surveying gear, can be obtained pitch error with full-height tooth for the tooth pitch measured away from compared with；Display system shows final detection
As a result: radius of addendum, root radius and pitch error.
Preferably, it needs first to carry out centering processing to gear under test before establishing polar coordinate system, makes center and the tooth of centration axis
Wheel center is overlapped, and the pole heart of polar coordinate system is the central point of gear under test and revolving platform contact surface.
Preferably, it is characterised in that gear under test and every 1 ° of the rotation of revolving platform in measurement process, data collection system is adopted
Collect the laser displacement signal of 1 group of laser triangle displacement sensor, 50 groups of data of continuous acquisition, finally to 50 groups of data of acquisition into
Row the Fitting Calculation.
The laser triangle displacement sensor choosing mentioned in the detection method of spiral bevel gear key parameter of the present invention
It is 100mm with model ZLDS113, standard range D, resolution ratio is 1 μm.
The present invention proposes a kind of laser detection system and corresponding detection for the detection of spiral bevel gear key parameter
Method, the present invention there are the advantages of have:
1) gear under test is tightly pull-in on revolving platform under the action of electromagnetic force, flat with revolution in measurement process
Platform rotates synchronously, and reduces the error caused by measuring system itself；
2) present invention is using the non-contact detection method based on laser triangle displacement sensor, the detection system of design
Three parameters to be measured are detected respectively using three laser triangle displacement sensors in system, improve the efficiency of detection；
3) most of detection system and detection method of the gear parameter proposed at present are for spur gear and super-huge tooth
The fast accurate inspection of spiral bevel gear key parameter may be implemented in the parameter detecting of wheel, detection system and method proposed by the present invention
It surveys.
Detailed description of the invention
Fig. 1 is spiral bevel gear key parameter detecting system schematic diagram of the invention；
Fig. 2 is rotary positioning structure schematic diagram in detection system of the invention；
Fig. 3 is laser triangle displacement sensor scheme of installation of the invention；
Fig. 4 is the schematic diagram of spiral bevel gear key parameter detection method of the invention；And
Fig. 5 is detection system control block diagram of the invention.
Specific embodiment
A specific embodiment of the invention is as follows:
As shown in Figure 1, spiral bevel gear key parameter detection system of the invention, it be by cabinet 1, workbench 2, whirler
Structure, revolving platform 3, centring means 4, first laser triangular displacement sensor 5 (1), second laser triangular displacement sensor 5 (2)
It is led with third laser triangle displacement sensor 5 (3), crossbeam 6, data acquisition and communication system 7, servo motor 8, column 9, Z axis
The composition such as rail 10, X-axis guide rail 11, data processing and display system 12.The workbench is fixedly mounted on the cabinet, in institute
Workbench is stated equipped with the revolving platform and the column；The column is vertical with revolving platform, the servo motor installation
On the column, the revolving platform is connect by shaft with rotating mechanism, is revolved under the driving of the rotating mechanism
Turn；The centring means is equipped on the revolving platform；The revolving platform is an electromagnetically mechanism, can be produced after energization
Raw electromagnetic force, gear under test are fixed on the revolving platform under the action of electromagnetic force after centering is handled, and are measured
The gear under test is rotated synchronously with the revolving platform in the process；Beam vertical is mounted on column；Column be equipped with
The parallel Z axis guide rail of column, the crossbeam slide under the driving effect of the servo motor along Z axis guide rail；The crossbeam
It is equipped with the X-axis guide rail parallel with crossbeam, is mounted with first laser triangular displacement sensor, second laser triangular displacement on crossbeam
Sensor and third laser triangle displacement sensor, three laser triangle displacement sensors divide under the driving of the servo motor
It is not moved along X-axis guide rail, and the angle of third laser displacement sensor can be adjusted according to the pitch cone angle of tested gear；Three
A laser triangle displacement sensor simultaneously measures three different parameters of gear under test；The laser triangulation displacement
Sensor is acquired with the data and the communication system is connected；The data that the data acquisition and the communication system obtain
Final detection result is shown by the display system after treatment.
Rotating mechanism is housed in cabinet 1, the structural schematic diagram of rotating mechanism as shown in Figure 2, rotating mechanism is by shaft
13, angular displacement sensor 14, servo drive system 15 form.Rotating mechanism is connect by shaft 13 with revolving platform 3, transfer
The upper end of axis 13 is connect with revolving platform 3, and lower end is connect with angular displacement sensor 14；The right end and servo of angle level sensor 14 drive
Dynamic system 15 connects.Servo drive system 15 in measurement process in rotating mechanism drives the rotation of shaft 13, then by turning
Axis 13 drives revolving platform 3 and gear under test synchronous rotary.
The structural schematic diagram of laser triangle displacement sensor as shown in Figure 3, the present invention are provided with three laser triangulation positions
Displacement sensor, first laser triangular displacement sensor are used to detect radius of addendum, and second laser triangular displacement sensor is used to
Root radius is detected, third laser triangle displacement sensor is used to detect pitch error.Three laser triangle displacement sensors
Setting angle need to guarantee that the laser of sensor emission can distinguish direct projection to the tooth crest of gear under test, root portion and reference circle
On；In addition laser triangle displacement sensor can guarantee under the driving effect of servo motor along vertically and horizontally moving
Gear under test is in the range ability of laser triangle displacement sensor in measurement process.
According to the overhaul flow chart of spiral bevel gear key parameter as shown in Figure 4, the inspection of spiral bevel gear key parameter
Steps are as follows for survey:
1) robot device lays flat gear under test on revolving platform first, to be measured after the centering of centring means processing
The center of gear is overlapped with the center of revolving platform, and then electromagnetic mechanism generates electromagnetic force after being powered, under the action of electromagnetic force
Gear under test is fixed on revolving platform, is established pole as the pole heart using the contact surface center of revolving platform and gear under test and is sat
Mark system；
2) under the driving effect of servo motor, crossbeam is along Z axis guide rail slide downward, so that three laser triangulation displacements pass
Sensor moves closer to gear under test, then adjusts position of three laser triangle displacement sensors in X-axis guide rail respectively, make to
Gear is surveyed to be in the standard range ability of laser triangle displacement sensor；After the position of laser triangle displacement sensor determines,
The position of record laser triangle displacement sensor at this time, the coordinate of first laser triangular displacement sensor are (X1, Y, Z), second
The coordinate of laser triangle displacement sensor is (X2, Y, Z), and the coordinate of third laser triangle displacement sensor is (X3, Y, Z)；
3) revolving platform is rotated under rotating mechanism driving, and gear under test is rotated synchronously with revolving platform, and three
In the laser difference direct projection to the tooth crest of gear under test, root portion and reference circle of laser triangle displacement sensor transmitting；It is to be measured
For gear often with 1 ° of revolving platform synchronous rotary, data collection system acquires the laser of primary each laser triangle displacement sensor
Displacement signal, is denoted as d1 (t), d2 (t), d3 (t), t=1 respectively, and 2,3 ... 50；50 groups of numbers of data collection system continuous acquisition
According to collected 50 groups of laser displacement signals are then transmitted to data processing system；
4) data processing system is first converted into polar form, first laser triangle to the 50 groups of data collected
50 groups of data that displacement sensor collects coordinate in polar coordinate system can be expressed as (tq, X1-d1 (t)), second laser
50 groups of data that triangular displacement sensor collects coordinate in polar coordinate system can be expressed as (tq, X2+d2 (t)), third
50 groups of data that laser triangle displacement sensor collects coordinate in polar coordinate system can be expressed as (tq, X3-d3 (t)
Cos α), wherein α is the inclined angle of third laser triangle displacement sensor；Tq is the polar angle in polar coordinates.
5) gross error therein is removed to obtained data, finally by computer program to the data after error separate
It is fitted and calculates；The data that first laser triangular displacement sensor and second laser triangular displacement sensor obtain can be intended
Two circular arcs are combined into, the radius of two circular arcs is radius of addendum and root radius, third laser triangle displacement sensor
The data of acquisition can fit corresponding profile geometry, can further calculate the tooth pitch of gear under test, by the tooth pitch measured with
Full-height tooth can be obtained pitch error away from comparing；Display system show final detection result: radius of addendum, root radius and
Pitch error.
Servo-system driving is schemed in measurement process as shown in Figure 5, gear under test and the every rotation of revolving platform in measurement process
Turn 1 °, data collection system carries out one acquisition to the laser displacement signal of three laser triangle displacement sensors, will collect
Data transmission to data processing system, then data processing system sends an instruction control rotating mechanism revolution is driven to put down
Platform continues to rotate with gear under test, step more than repetition, until controller after 50 groups of data of data collection system continuous acquisition
Rotating mechanism is set to stop rotating.
Certainly, those skilled in the art can also according to the actual situation set revolving platform synchronous rotary angle progress difference
It is fixed, and different data times of collection is arranged according to rotation angle and demand.For example, gear under test and revolution in measurement process
Every 0.5 ° of the rotation of platform, data collection system once adopts the laser displacement signal of three laser triangle displacement sensors
Collection, by collected data transmission to data processing system, then data processing system sends an instruction and controls rotating mechanism
Revolving platform is driven to continue to rotate with gear under test, step more than repetition, until 100 groups of data collection system continuous acquisition
Controller makes rotating mechanism stop rotating after data.Or gear under test and every 2 ° of the rotation of revolving platform, number in measurement process
One acquisition is carried out according to laser displacement signal of the acquisition system to three laser triangle displacement sensors, collected data are passed
Be sent to data processing system, then data processing system send instruction control rotating mechanism drive revolving platform with it is to be measured
Gear continues to rotate, step more than repetition, until controller makes whirler after 30 groups of data of data collection system continuous acquisition
Structure stops rotating.Therefore the setting in the embodiment of the present invention to revolving platform synchronous rotary angle and data times of collection, only
Illustrative explanation.
It should be noted last that: above embodiments only illustrate and not to limitation technical solution of the present invention, although reference
Above-described embodiment describes the invention in detail, those skilled in the art should understand that: it still can be to this hair
It is bright to be modified or replaced equivalently, it without departing from the spirit or scope of the invention, or any substitutions, should all
It is included within the scope of the claims of the present invention.
Claims (4)
1. a kind of detection method of spiral bevel gear key parameter, the detection method is examined in spiral bevel gear key parameter laser
It is carried out in examining system, the spiral bevel gear key parameter laser detection system includes cabinet, rotating mechanism, workbench, revolution
Platform, centring means, first laser triangular displacement sensor, second laser triangular displacement sensor, the displacement of third laser triangulation
Sensor, crossbeam, servo motor, column, Z axis guide rail, X-axis guide rail, data acquisition and communication system, data processing and display are
System,
The workbench is fixedly mounted on the cabinet, is equipped with the revolving platform and the column on the workbench,
The column is vertical with the revolving platform, and the servo motor is mounted on the column；The revolving platform passes through shaft
It connect with rotating mechanism, is rotated under the driving of the rotating mechanism；The centering is equipped on the revolving platform to fill
It sets, spiral bevel gear to be measured is fixed under the action of electromagnetic force on the revolving platform after centering is handled and energy
It is rotated synchronously with the revolving platform；
The beam vertical is mounted on the column, and the column is equipped with the Z axis guide rail in parallel；The crossbeam
It is slided under the driving effect of the servo motor along the Z axis guide rail, the crossbeam is equipped with the X parallel with the crossbeam
Axis rail；
First laser triangular displacement sensor, second laser triangular displacement sensor and third laser triangle displacement sensor difference
It is arranged on the crossbeam, for measuring simultaneously to the different parameters of gear under test, three laser triangulation displacements are passed
Sensor moves under the driving of the servo motor along X-axis guide rail, and the angle of third laser displacement sensor was measuring
Cheng Zhongke is adjusted according to the pitch cone angle of tested gear；
The first laser triangular displacement sensor for detecting radius of addendum is provided on the crossbeam, for detecting root circle
The second laser triangular displacement sensor of radius, and the third laser triangle displacement sensor for detecting pitch error；
The first laser triangular displacement sensor has the first setting angle, is used to that the first laser triangular displacement to be made to pass
Tooth crest of the laser energy direct projection that sensor is emitted to gear under test；The second laser triangular displacement sensor has the second peace
Fill angle, the tooth root of the laser direct projection for being used to that the second laser triangular displacement sensor to be enable to be emitted to gear under test
Portion；And the third laser triangle displacement sensor has third setting angle, is used to make third laser triangulation position
In the laser energy direct projection to the reference circle of gear under test that displacement sensor is emitted；
Data acquisition and communication system and first laser triangular displacement sensor, second laser triangular displacement sensor and the
Three laser triangle displacement sensors are connected, the data transmission that the data acquire and communication system will acquire to data processing system
System, data processing system carry out after corresponding coordinate conversion, error separate, the Fitting Calculation by the data data of acquisition
Processing shows testing result with display system；It is characterized by: specific step is as follows for the detection method:
1) robot device lays flat gear under test on revolving platform first, the gear under test after the centering of centring means processing
Center be overlapped with the center of the revolving platform, then electromagnetic mechanism be powered after generate electromagnetic force, under the action of electromagnetic force
Gear under test is fixed on the revolving platform, and the contact surface center with the revolving platform and the gear under test is
The pole heart establishes polar coordinate system；
2) under the driving effect of servo motor, crossbeam is along Z axis guide rail slide downward, so that first laser triangular displacement senses
Device, second laser triangular displacement sensor and third laser triangle displacement sensor move closer to gear under test, then adjust respectively
The first laser triangular displacement sensor, second laser triangular displacement sensor and third laser triangle displacement sensor is saved to exist
Position in the X-axis guide rail, and the angle of third laser displacement sensor can be adjusted according to the pitch cone angle of tested gear
Section, makes gear under test be in the first laser triangular displacement sensor, second laser triangular displacement sensor and third laser
In the standard range ability of triangular displacement sensor；After the position of the laser triangle displacement sensor determines, institute at this time is recorded
The position of laser triangle displacement sensor is stated, the coordinate of first laser triangular displacement sensor is (X1, Y, Z), second laser three
The coordinate of angular displacement sensor is (X2, Y, Z), the coordinate of third laser triangle displacement sensor is (X3,Y,Z)；
3) revolving platform is rotated under rotating mechanism driving, and gear under test is rotated synchronously with revolving platform, described
What first laser triangular displacement sensor, second laser triangular displacement sensor and third laser triangle displacement sensor emitted swashs
Light is distinguished in direct projection to the tooth crest of gear under test, root portion and reference circle；Gear under test is often with revolving platform synchronous rotary
Q ° of angle, wherein q value can be set as a certain fixed value in a data processing system, and the value range of q is between 0.5~2, data
Acquisition system acquires the laser displacement signal of primary each laser triangle displacement sensor, is denoted as d respectively1(t), d2(t), d3
(t), wherein t=1,2,3 ... n, n are the positive integer more than or equal to 30；Data collection system continuous acquisition multi-group data, then
Collected multiple groups laser displacement signal is transmitted to data processing system；
4) data processing system is first converted into polar form, first laser triangular displacement to the multi-group data collected
50 groups of data that sensor collects coordinate in polar coordinate system can be expressed as (tq, X1-d1(t)), second laser triangle position
50 groups of data that displacement sensor collects coordinate in polar coordinate system can be expressed as (tq, X2+d2(t)), third laser triangulation
50 groups of data that displacement sensor collects coordinate in polar coordinate system can be expressed as (tq, X3-d3(t) cos α), wherein
α is the inclined angle of third laser triangle displacement sensor；Tq is the polar angle in polar coordinates；Then error separate is carried out, finally
Data after error separate are fitted and are calculated；First laser triangular displacement sensor and second laser triangular displacement sensing
The data that device obtains are fitted to two circular arcs, and the radius of two circular arcs is radius of addendum and root radius, third laser
The data that triangular displacement sensor obtains can fit corresponding profile geometry, further calculate the tooth pitch of gear under test, will
The tooth pitch measured can be obtained pitch error with full-height tooth away from compared with；Data processing and display system shows final detection knot
Fruit: radius of addendum, root radius and pitch error.
2. the detection method of spiral bevel gear key parameter according to claim 1, it is characterised in that: establish polar coordinate system
Preceding needs first carry out centering processing to gear under test, are overlapped the center of centration axis with gear centre, and the pole heart of polar coordinate system is
The central point of gear under test and revolving platform contact surface.
3. the detection method of spiral bevel gear key parameter according to claim 2, it is characterised in that: in measurement process to
Gear and every 1 ° of the rotation of revolving platform are surveyed, data collection system acquires the laser displacement signal of 1 group of laser triangle displacement sensor,
50 groups of data of continuous acquisition are finally fitted calculating to 50 groups of data of acquisition.
4. the detection method of spiral bevel gear key parameter according to claim 2, it is characterised in that: the revolving platform
The electromagnetic mechanism of electromagnetic force can be generated after being powered for one and can be carried out rotation, the rotation under the driving of the rotating mechanism
Rotation mechanism includes shaft, angular displacement sensor and servo drive system, and the upper end of the shaft is connect with the revolving platform, institute
The lower end for stating shaft is connect with the angular displacement sensor, and the right end of the angular displacement sensor and the servo drive system connect
It connects.
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| CN109470474B (en) * | 2018-12-04 | 2024-06-11 | 重庆机床(集团)有限责任公司 | Laser beam tooth pitch error detection device |
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| CN110879043A (en) * | 2019-11-23 | 2020-03-13 | 中国科学院长春光学精密机械与物理研究所 | Rail vehicle wheel diameter measuring equipment |
| CN113063350A (en) * | 2021-03-23 | 2021-07-02 | 宁波大学 | System and method for detecting tooth form and output end face flatness of flexible gear of harmonic reducer |
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| CN202149755U (en) * | 2011-07-20 | 2012-02-22 | 唐大春 | Laser detection device for gear parameters |
| CN103994717B (en) * | 2014-05-24 | 2017-04-19 | 长春市春求科技开发有限公司 | Optical gear measurement device and detection method |
| JP6539485B2 (en) * | 2015-04-21 | 2019-07-03 | 株式会社ミツトヨ | Measurement system using tracking type laser interferometer and recovery method thereof |
| CN205748298U (en) * | 2016-05-17 | 2016-11-30 | 扬州大学 | A kind of gear measurement device based on laser displacement sensor |
| CN105823435B (en) * | 2016-05-17 | 2017-12-29 | 扬州大学 | A kind of gear measurement device and gear measuring method based on laser displacement sensor |
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