CN106813584A - 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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- CN106813584A CN106813584A CN201710208642.4A CN201710208642A CN106813584A CN 106813584 A CN106813584 A CN 106813584A CN 201710208642 A CN201710208642 A CN 201710208642A CN 106813584 A CN106813584 A CN 106813584A
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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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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
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.Detecting system of the invention includes casing, rotating mechanism, workbench, revolving dial, centring means, first laser triangular displacement sensor, second laser triangular displacement sensor, the 3rd laser triangle displacement sensor, crossbeam, the servomotor 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 drives gear under test to rotate for rotating mechanism, data collecting system Real-time Collection laser displacement signal, and the laser displacement signal that will be collected is sent to data handling system and data presentation system.Laser triangle displacement sensor as part is predominantly detected, using contactless laser optical method, large increase has been obtained in the accuracy and speed of detection by detecting system of the present invention.
Description
Technical field
The present invention relates to a kind of detecting system of the spiral bevel gear key parameter based on laser triangle displacement sensor and
Method, belongs to technical field of optical detection.
Background technology
Spiral bevel gear is a kind of important drive disk assembly, with transmission efficiency, gearratio stabilization, reliable operation and longevity
The advantages of ordering long, therefore it is widely used in the multiple fields such as automobile, lathe, aviation.For example spiral bevel gear as automobile after
Important drive disk assembly in bridge main reducing gear, its quality directly influences the comfortableness and security of automobile.Spiral bevel gear exists
Underproof product may be produced in forging process, if these underproof products are used to that in automobile vapour will be influenceed
The security of car, therefore be also particularly important to the detection of spiral bevel gear key parameter.
Most of detecting system and detection method of the gear parameter for proposing at present are directed to spur gear and super-huge gear,
And the fast accurate detection of spiral bevel gear key parameter cannot be realized.
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 accuracy of contact, efficient measuring method.
The content of the invention
Detecting system and detection method based on current gear parameter cannot realize the quick of spiral bevel gear key parameter
Precisely detection, the present invention proposes a kind of spiral bevel gear key parameter detecting 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 casing, rotating mechanism, workbench, revolving dial,
Centring means, first laser triangular displacement sensor, second laser triangular displacement sensor, the 3rd laser triangulation displacement sensing
Device, crossbeam, servomotor, 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 casing, and the revolving dial and the column are provided with the workbench, described
Column is vertical with the revolving dial, and the servomotor is arranged on the column；The revolving dial is by rotating shaft and rotation
Rotation mechanism is connected, and is rotated under the driving of the rotating mechanism；The centring means is provided with the revolving dial, is treated
Survey spiral bevel gear is fixed on the revolving dial in the presence of electromagnetic force after centering is processed and can be with institute
State revolving dial synchronous axial system；The beam vertical is arranged on the column, and the column is provided with the Z in parallel
Axis rail；The crossbeam under the driving effect of the servomotor along the Z axis guide rail slide, the crossbeam be provided with
The parallel X-axis guide rail of the crossbeam；First laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser
Triangular displacement sensor is separately positioned on the crossbeam, is measured for the different parameters simultaneously to gear under test, three
The laser triangle displacement sensor is moved under the driving of the servomotor along X-axis guide rail, and the 3rd laser displacement is passed
The angle of sensor can be adjusted in measurement process according to the pitch cone angle of tested gear；The data acquisition and communication system with
First laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser triangle displacement sensor are connected,
The data of acquisition are sent to data handling system, data of the data handling system to acquisition by the data acquisition and communication system
Testing result is shown by described display system after carrying out corresponding Coordinate Conversion, error separate, the Fitting Calculation.
Preferably, the revolving dial be one be powered after can produce the electromagnetic mechanism of electromagnetic force and in the whirler
Can be rotated under the driving of structure, the rotating mechanism includes rotating shaft, angular displacement sensor and servo drive system, the rotating shaft
Upper end be connected with the revolving dial, the lower end of the rotating shaft is connected with the angular displacement sensor, the angle displacement transducer
The right-hand member of device is connected with the servo drive system.
Preferably, the first laser triangular displacement sensor for detecting radius of addendum is provided with the crossbeam, is used
In the second laser triangular displacement sensor of detection root radius, and for detecting the 3rd laser triangulation position of pitch error
Displacement sensor.
Preferably, the first laser triangular displacement sensor has the first setting angle, and it is used to make described first to swash
Tooth crest of the laser energy direct projection that light triangular displacement sensor is launched to gear under test；The second laser triangular displacement sensing
Utensil has the second setting angle, and the laser direct projection that it is used to enabling the second laser triangular displacement sensor to be launched is to be measured
The root portion of gear；And the 3rd laser triangle displacement sensor has the 3rd setting angle, it is used to make the described 3rd
The laser energy direct projection that laser triangle displacement sensor is launched is on the reference circle of gear under test.
A kind of detection method of spiral bevel gear key parameter, detection is comprised the following steps that：
1) robot device keeps flat on revolving dial gear under test first, to be measured after being processed through the centering of centring means
The center of gear and the center superposition of the revolving dial, then produce electromagnetic force, in the work of electromagnetic force after electromagnetic mechanism energization
It is fixed on the revolving dial with lower gear under test, in the contact surface with the revolving dial with the gear under test
The heart sets up polar coordinate system for the pole heart；
2) under the driving effect of servomotor, crossbeam is along Z axis guide rail slide downward so that first laser triangular displacement is passed
Sensor, second laser triangular displacement sensor and the 3rd 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 the 3rd laser triangle displacement sensor
Position in the X-axis guide rail, and the angle of the 3rd laser displacement sensor can carry out according to the pitch cone angle of tested gear
Regulation, makes gear under test be in the first laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd and swashs
In the range of the standard range of light triangular displacement sensor；After the position of the laser triangle displacement sensor determines, record is now
The position of the laser triangle displacement sensor；
3) revolving dial rotating mechanism driving under rotated, gear under test with revolving dial synchronous axial system,
The transmitting of the first laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser triangle displacement sensor
Laser distinguish direct projection to the tooth crest of gear under test, root portion and reference circle；Gear under test is often with revolving dial synchronization
Q ° of the anglec of rotation, wherein q values can in a data processing system be set as a certain fixed value, the span of q between 0.5~2,
Data collecting system gathers once the laser displacement signal of each laser triangle displacement sensor, and d1 (t), d2 (t) are denoted as respectively,
D3 (t), wherein t=1,2,3 ... n, n are the positive integer more than or equal to 30；Data collecting system continuous acquisition multi-group data, so
The multigroup laser displacement signal that will be collected afterwards is sent to data handling system；
4) data handling system is first converted into polar form to the multi-group data for collecting, and then carries out error
Separate, finally the data after error separate are fitted and calculating；First laser triangular displacement sensor and second laser three
The data that angular displacement sensor is obtained can be fitted to two circular arcs, and the radius of two circular arcs is radius of addendum and root circle
Radius, the data that the 3rd laser triangle displacement sensor is obtained can fit corresponding profile geometry, can further calculate and treat
Survey the tooth pitch of gear, the tooth pitch that will be measured and full-height tooth the acquisition pitch error by compare；Display system shows final detection
As a result：Radius of addendum, root radius and pitch error.
Preferably, need first to carry out centering treatment to gear under test before setting up polar coordinate system, make the center of centration axis and tooth
Wheel center superposition, the pole heart of polar coordinate system is gear under test and the central point of revolving dial contact surface.
Preferably, it is characterised in that gear under test often rotates 1 ° with revolving dial in measurement process, and data collecting system is adopted
Collect 1 group of laser displacement signal of laser triangle displacement sensor, 50 groups of data of continuous acquisition are finally entered to the 50 groups of data for obtaining
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 to use model ZLDS113, standard range D, and 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 advantage that the present invention is present has：
1) gear under test is tightly pull-in on revolving dial in the presence of electromagnetic force, flat with revolution in measurement process
Platform synchronous axial system, the error that reduction is caused in itself by measuring system；
2) present invention uses 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, improves the efficiency of detection；
3) most of detecting system and detection method of the gear parameter for proposing at present are directed to spur gear and super-huge tooth
The parameter detecting of wheel, detecting system proposed by the present invention and method can realize the fast accurate inspection of spiral bevel gear key parameter
Survey.
Brief description of the drawings
Fig. 1 is spiral bevel gear key parameter detecting system schematic diagram of the invention；
Fig. 2 is rotary positioning structure schematic diagram in detecting 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 detecting system control block diagram of the invention.
Specific embodiment
Specific embodiment of the invention is as follows：
As shown in figure 1, spiral bevel gear key parameter detecting system of the invention, be by casing 1, workbench 2, whirler
Structure, revolving dial 3, centring means 4, first laser triangular displacement sensor 5 (1), second laser triangular displacement sensor 5 (2)
Led with the 3rd laser triangle displacement sensor 5 (3), crossbeam 6, data acquisition and communication system 7, servomotor 8, column 9, Z axis
Rail 10, X-axis guide rail 11, data processing and display system 12 etc. are constituted.The workbench is fixedly mounted on the casing, in institute
State workbench and be provided with the revolving dial and the column；The column is vertical with revolving dial, and the servomotor is installed
On the column, the revolving dial is connected by rotating shaft with rotating mechanism, is revolved under the driving of the rotating mechanism
Turn；The centring means is provided with the revolving dial；The revolving dial is an electromagnetically mechanism, can be produced after energization
Raw electromagnetic force, gear under test is fixed on the revolving dial by after centering treatment in the presence of electromagnetic force, measures
During the gear under test with the revolving dial synchronous axial system；Beam vertical is arranged on column；Column be provided with
The parallel Z axis guide rail of column, the crossbeam is slided under the driving effect of the servomotor along Z axis guide rail；The crossbeam
The X-axis guide rail parallel with crossbeam is provided with, first laser triangular displacement sensor, second laser triangular displacement are mounted with crossbeam
Sensor and the 3rd laser triangle displacement sensor, three laser triangle displacement sensors divide under the driving of the servomotor
Do not moved along X-axis guide rail, and the angle of the 3rd laser displacement sensor can be adjusted according to the pitch cone angle of tested gear；Three
The individual laser triangle displacement sensor is measured to three different parameters of gear under test simultaneously；The laser triangulation displacement
Sensor is connected with the data acquisition and the communication system；The data that the data acquisition and the communication system are obtained
Final detection result is shown by the display system after treatment.
Rotating mechanism is housed in casing 1, the structural representation of rotating mechanism as shown in Figure 2, rotating mechanism is by rotating shaft
13rd, angular displacement sensor 14, servo drive system 15 are constituted.Rotating mechanism is connected by rotating shaft 13 with revolving dial 3, its transfer
The upper end of axle 13 is connected with revolving dial 3, and lower end is connected with angular displacement sensor 14；The right-hand member of angle level sensor 14 drives with servo
Dynamic system 15 is connected.Servo drive system 15 in rotating mechanism in measurement process drives rotating shaft 13 and rotates, then by turning
Axle 13 drives revolving dial 3 and gear under test synchronous rotary.
The structural representation of laser triangle displacement sensor as shown in Figure 3, the present invention is provided with three laser triangulation positions
Displacement sensor, first laser triangular displacement sensor is used for detecting radius of addendum that second laser triangular displacement sensor is used for
Detection root radius, the 3rd laser triangle displacement sensor is used for detecting pitch error.Three laser triangle displacement sensors
Setting angle need to ensure that the laser of sensor emission can distinguish direct projection to the tooth crest of gear under test, root portion and reference circle
On；Other laser triangle displacement sensor can be under the driving effect of servomotor along vertically and horizontally moving, it is ensured that
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
Survey step as follows：
1) robot device keeps flat on revolving dial gear under test first, to be measured after being processed through the centering of centring means
The center of gear and the center superposition of revolving dial, then produce electromagnetic force, in the presence of electromagnetic force after electromagnetic mechanism energization
Gear under test is fixed on revolving dial, is set up pole as the pole heart with the contact surface center of revolving dial and gear under test and is sat
Mark system；
2) under the driving effect of servomotor, crossbeam is along Z axis guide rail slide downward so that three laser triangulation displacements are passed
Sensor moves closer to gear under test, and position of three laser triangle displacement sensors in X-axis guide rail is then adjusted respectively, makes to treat
Gear is surveyed to be in the range of the standard range of laser triangle displacement sensor；After the position of laser triangle displacement sensor determines,
The position of now laser triangle displacement sensor is recorded, the coordinate of first laser triangular displacement sensor is (X1, Y, Z), second
The coordinate of laser triangle displacement sensor is (X2, Y, Z), and the coordinate of the 3rd laser triangle displacement sensor is (X3, Y, Z)；
3) revolving dial is rotated under rotating mechanism driving, and gear under test is with revolving dial synchronous axial system, three
The laser of laser triangle displacement sensor transmitting distinguishes direct projection to the tooth crest of gear under test, root portion and reference circle；It is to be measured
Gear often with 1 ° of revolving dial synchronous rotary, the laser of data collecting system collection once each laser triangle displacement sensor
Displacement signal, is denoted as d1 (t), d2 (t), d3 (t), t=1,2,3 ... 50 respectively；50 groups of numbers of data collecting system continuous acquisition
According to the 50 groups of laser displacement signals that then will be collected are sent to data handling system；
4) data handling system is first converted into polar form, first laser triangle to the 50 groups of data for collecting
50 groups of data that displacement transducer is collected coordinate in polar coordinate system can be expressed as (tq, X1-d1 (t)), second laser
50 groups of data that triangular displacement sensor is collected coordinate in polar coordinate system can be expressed as (tq, X2+d2 (t)), the 3rd
50 groups of data that laser triangle displacement sensor is collected coordinate in polar coordinate system can be expressed as (tq, X3-d3 (t)
Cos α), wherein α is the 3rd inclined angle of laser triangle displacement sensor；Tq is the polar angle in polar coordinates.
5) gross error therein is removed to the data for obtaining, finally by computer program to the data after error separate
It is fitted and calculating；The data that first laser triangular displacement sensor and second laser triangular displacement sensor are obtained can be intended
Two circular arcs are combined into, the radius of two circular arcs is radius of addendum and root radius, the 3rd laser triangle displacement sensor
The data of acquisition can fit corresponding profile geometry, can further calculate the tooth pitch of gear under test, the tooth pitch that will be measured with
Full-height tooth obtains pitch error by compare；Display system shows final detection result：Radius of addendum, root radius and
Pitch error.
Servo-drive system drives figure in measurement process as shown in Figure 5, and gear under test often revolves with revolving dial in measurement process
Turn 1 °, data collecting system is once gathered to the laser displacement signal of three laser triangle displacement sensors, will be collected
Data be sent to data handling system, then data handling system sends an instruction control rotating mechanism and drives revolution flat
The step of platform continues rotation, the repetition above with gear under test, until controller after 50 groups of data of data collecting system continuous acquisition
Rotating mechanism is set to stop the rotation.
Certainly, those skilled in the art carry out difference and set also dependent on actual conditions to revolving dial synchronous rotary angle
It is fixed, and different data acquisition number of times is set according to the anglec of rotation and demand.Such as, gear under test and revolution in measurement process
Platform often rotates 0.5 °, and data collecting system is once adopted to the laser displacement signal of three laser triangle displacement sensors
Collection, the data that will be collected are sent to data handling system, and then data handling system sends an instruction control rotating mechanism
The step of driving revolving dial to continue rotation, the repetition above with gear under test, until 100 groups of data collecting system continuous acquisition
Controller makes rotating mechanism stop the rotation after data.Or, gear under test often rotates 2 °, number with revolving dial in measurement process
The laser displacement signal of three laser triangle displacement sensors is once gathered according to acquisition system, the data that will be collected are passed
Be sent to data handling system, then data handling system send one instruction control rotating mechanism drive revolving dial with it is to be measured
The step of gear continues rotation, the repetition above, until controller makes whirler after 30 groups of data of data collecting system continuous acquisition
Structure stops the rotation.Therefore the setting in the embodiment of the present invention to revolving dial synchronous rotary angle and data times of collection, simply
Exemplary explanation.
It should be noted last that：Above example only illustrates and not to limit technical scheme, although reference
Above-described embodiment has been described in detail to the present invention, it will be understood by those within the art that：Still can be to this hair
It is bright to modify or equivalent, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should
Cover in the middle of scope of the presently claimed invention.
Claims (7)
1. it is a kind of spiral bevel gear key parameter laser detection system, including casing, rotating mechanism, workbench, revolving dial, fixed
Center device, first laser triangular displacement sensor, second laser triangular displacement sensor, the 3rd laser triangle displacement sensor,
Crossbeam, servomotor, column, Z axis guide rail, X-axis guide rail, data acquisition and communication system and data processing and display system,
It is characterized in that：
The workbench is fixedly mounted on the casing, and the revolving dial and the column are provided with the workbench,
The column is vertical with the revolving dial, and the servomotor is arranged on the column；The revolving dial passes through rotating shaft
It is connected with rotating mechanism, is rotated under the driving of the rotating mechanism；The centering dress is provided with the revolving dial
Put, spiral bevel gear to be measured is fixed on the revolving dial and energy by after centering treatment in the presence of electromagnetic force
With the revolving dial synchronous axial system；
The beam vertical is arranged on the column, and the column is provided with the Z axis guide rail in parallel；The crossbeam
Slided along the Z axis guide rail under the driving effect of the servomotor, the crossbeam is provided with the X parallel with the crossbeam
Axis rail；
First laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser triangle displacement sensor difference
It is arranged on the crossbeam, is measured for the different parameters simultaneously to gear under test, three laser triangulation displacements is passed
Sensor is moved under the driving of the servomotor along X-axis guide rail, and the angle of the 3rd laser displacement sensor was being measured
Cheng Zhongke is adjusted according to the pitch cone angle of tested gear；
The 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, and the data of acquisition are sent to data processing system by the data acquisition and communication system
System, data handling system shows system after the data for obtaining are carried out with corresponding Coordinate Conversion, error separate, the Fitting Calculation by described
System shows testing result.
2. spiral bevel gear key parameter laser detection system according to claim 1, it is characterised in that the revolution is put down
Platform be one be powered after can produce the electromagnetic mechanism of electromagnetic force and can be rotated under the driving of the rotating mechanism, it is described
Rotating mechanism includes rotating shaft, angular displacement sensor and servo drive system, and the upper end of the rotating shaft is connected with the revolving dial,
The lower end of the rotating shaft is connected with the angular displacement sensor, the right-hand member of the angular displacement sensor and the servo drive system
Connection.
3. spiral bevel gear key parameter laser detection system according to claim 1, it is characterised in that on the crossbeam
It is provided with the first laser triangular displacement sensor for detecting radius of addendum, the second laser for detecting root radius
Triangular displacement sensor, and for detecting the 3rd laser triangle displacement sensor of pitch error.
4. spiral bevel gear key parameter laser detection system according to claim 3, it is characterised in that described first swashs
Light triangular displacement sensor has the first setting angle, and what it was used to being launched the first laser triangular displacement sensor swashs
Tooth crest of the luminous energy direct projection to gear under test；The second laser triangular displacement sensor has the second setting angle, and it is used for
Enable the laser direct projection that the second laser triangular displacement sensor is launched to the root portion of gear under test；And the described 3rd
Laser triangle displacement sensor has the 3rd setting angle, and it is used to make what the 3rd laser triangle displacement sensor was launched
The direct projection of laser energy is on the reference circle of gear under test.
5. a kind of detection method of spiral bevel gear key parameter, it is characterised in that the detection method is comprised the following steps：
Step one, robot device keep flat on revolving dial gear under test, tooth to be measured after being processed through the centering of centring means
The center of wheel and the center superposition of the revolving dial, then produce electromagnetic force, in the effect of electromagnetic force after electromagnetic mechanism energization
Lower gear under test is fixed on the revolving dial, with the contact surface center of the revolving dial and the gear under test
For the pole heart sets up polar coordinate system；
Step 2, under the driving effect of servomotor, crossbeam is along Z axis guide rail slide downward so that first laser triangular displacement
Sensor, second laser triangular displacement sensor and the 3rd laser triangle displacement sensor move closer to gear under test, Ran Houfen
The first laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser triangulation displacement sensing are not adjusted
Position of the device in the X-axis guide rail, and the angle of the 3rd laser displacement sensor can enter according to the pitch cone angle of tested gear
Row regulation, makes gear under test be in the first laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd
In the range of the standard range of laser triangle displacement sensor；After the position of the laser triangle displacement sensor determines, this is recorded
First laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser triangulation displacement sensing described in Shi Suoshu
The position of device；
Step 3, the revolving dial rotating mechanism driving under rotated, gear under test with revolving dial synchronous axial system,
The transmitting of the first laser triangular displacement sensor, second laser triangular displacement sensor and the 3rd laser triangle displacement sensor
Laser distinguish direct projection to the tooth crest of gear under test, root portion and reference circle；Gear under test is often with revolving dial synchronization
Q ° of the anglec of rotation, wherein q values can in a data processing system be set as a certain fixed value, the span of q between 0.5~2,
Data collecting system gathers once the laser displacement signal of each laser triangle displacement sensor, and d1 (t), d2 (t) are denoted as respectively,
D3 (t), wherein t=1,2,3 ... n, n are the positive integer more than or equal to 30；Data collecting system continuous acquisition multi-group data, so
The multigroup laser displacement signal that will be collected afterwards is sent to data handling system；
Step 4, data handling system are converted into polar form to the multi-group data for collecting, and carry out error separate,
Data after error separate are fitted and calculating, and display system display final detection result, including first laser three
The data that angular displacement sensor and second laser triangular displacement sensor are obtained are fitted to two circular arcs, and the radius of two circular arcs is
It is radius of addendum and root radius, the data that the 3rd laser triangle displacement sensor is obtained fit corresponding flank profil shape
Shape, and obtain the tooth pitch of gear under test, pitch error is obtained by compare by the tooth pitch of the gear under test and full-height tooth.
6. the detection method of spiral bevel gear key parameter according to claim 5, it is characterised in that set up polar coordinate system
Preceding needs first carry out centering treatment to gear under test, the center of centration axis is overlapped with gear centre, and polar coordinate system pole
The heart is the central point of gear under test and revolving dial contact surface.
7. the detection method of spiral bevel gear key parameter according to claim 6, it is characterised in that treated in measurement process
Survey gear and often rotate 1 ° with revolving dial, data collecting system gathers one group of laser displacement letter of laser triangle displacement sensor
Number, 50 groups of data of continuous acquisition are finally fitted calculating to the 50 groups of data for obtaining.
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| CN107388971A (en) * | 2017-08-30 | 2017-11-24 | 石珂 | Dual-headed laser gear measurement device |
| CN109470474A (en) * | 2018-12-04 | 2019-03-15 | 重庆机床(集团)有限责任公司 | Laser beam pitch error detection device |
| CN109781005A (en) * | 2019-02-28 | 2019-05-21 | 西安交通大学 | Using the poor shell class workpiece fitted position measuring system and method for bidifly optical sensor |
| 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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| CN114670059A (en) * | 2022-04-02 | 2022-06-28 | 重庆理工大学 | Gear hobbing machine thermal error monitoring system based on gear m value intelligent on-site measurement |
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| 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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| CN113418451B (en) * | 2021-08-09 | 2023-03-14 | 郑州磨料磨具磨削研究所有限公司 | Four-axis laser centering measuring device and method |
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