CN108917660A - A kind of double excitation multi-diameter shaft axiality detection device - Google Patents
A kind of double excitation multi-diameter shaft axiality detection device Download PDFInfo
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- CN108917660A CN108917660A CN201811087424.0A CN201811087424A CN108917660A CN 108917660 A CN108917660 A CN 108917660A CN 201811087424 A CN201811087424 A CN 201811087424A CN 108917660 A CN108917660 A CN 108917660A
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- positioning
- detection device
- diameter shaft
- clamping cylinder
- platform
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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
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
Abstract
A kind of double excitation multi-diameter shaft axiality detection device,Including detection platform,The detection platform is equipped with locating platform and testing agency,The testing agency includes positioning clamping device,Bottom surface rotary components,Bidifly optical detection device,Servo motion device,Circumferentially positioned sensor and host computer handle display device,The positioning clamping device includes the dowel device being arranged on the locating platform,Clamping cylinder,With the positioning plate for being used to support clamping cylinder,The bottom surface rotary components are arranged in the dowel device bottom,The bidifly optical detection device is arranged on the servo motion device,The laser displacement sensor placed including two same longitudinal axis,The servo motion device includes supporting element and upper and lower servo operation component,The servo operation component up and down includes driving motor,Lead screw,Upper and lower alignment sensor and nut slider.
Description
Technical field
The present invention relates to work pieces process manufacturing field more particularly to a kind of double excitation multi-diameter shaft axiality detection devices.
Background technique
In processing manufacturing industry, processing for part, the process either processed, still quality after processing is completed and
Performance requires to undergo a large amount of detection work.At present for process two ladder outer circles of part multi-diameter shaft detection,
It mainly uses and does not stop turning of work piece after positioning and move up and down the tools such as dial gauge to be detected, based on manual inspection, or
It is very low with three-coordinates measuring machine offline inspection efficiency.But on the automation machining production line such as numerical control, realize that processing part exists
On-line checking on production line, the then detection method for needing to automate and detection scheme.
Summary of the invention
Point in view of the above problems provides a kind of double it is an object of the invention to overcome deficiency in the prior art
Laser multi-diameter shaft axiality detection device.
What the purpose of the present invention was realized by following technical solution:A kind of double excitation multi-diameter shaft concentricity detection dress
It sets, including detection platform, the detection platform is equipped with locating platform and testing agency, and the testing agency includes that positioning clamps
Device, bottom surface rotary components, bidifly optical detection device, servo motion device, circumferentially positioned sensor and host computer processing display
Device, the positioning clamping device includes the dowel device being arranged on the locating platform, clamping cylinder, and is used to support
The positioning plate of clamping cylinder, the bottom surface rotary components are arranged in the dowel device bottom, the bidifly optical detection device
It is arranged on the servo motion device, including the laser displacement sensor that two same longitudinal axis are placed, the servo motion
Device includes supporting element and upper and lower servo operation component, and the servo operation component up and down includes driving motor, lead screw, determines up and down
Level sensor and nut slider, the driving motor is fixed on the supporting element to glide on the nut slider for controlling
It is dynamic.
A further improvement of the present invention is that：The positioning plate is arranged on the locating platform, the dowel device
Including about two corresponding upper conical positioning pins and inferior pyramidal positioning pin, the clamping cylinder, the upper of the positioning plate is set
End, and makes the telescopic end of the clamping cylinder and the top of the upper conical positioning pin be connected, the upper conical positioning pin with
Workpiece for measurement is placed between the inferior pyramidal positioning pin.
A further improvement of the present invention is that：The bottom surface rotary components include the rotating seat for being used to support positioning, motor
And the fixation circumferential position that the rotating seat is corresponded in detection platform is arranged in motor support frame, the circumferentially positioned sensor,
The rotating seat is arranged on the locating platform, and the inferior pyramidal positioning pin is fixed on the surfaces of revolution of the rotating seat, institute
It states motor to be arranged below the detection platform by motor support frame, the motor shaft ends of the motor connect the rotation
Seat, the edge of the rotating seat are equipped with the magnet for determining positioning zero point, and the motor is servo step motor.
A further improvement of the present invention is that：The supporting element includes support plate and is separately positioned in the support plate
Two pieces of limit plates at end and lower end, the lead screw are arranged between two pieces of limit plates, and the nut slider set is through described
On lead screw, the alignment sensor up and down is arranged above the limit plate of lower end, and the quantity of the lead screw is multiple, the slide nut
The through-hole passed through for lead screw is equipped with inside block.
A further improvement of the present invention is that：The side of the nut slider is equipped with upper and lower two sliding blocks, and two described sharp
Optical displacement sensor is separately positioned on two sliding blocks, and is oppositely arranged with dowel device, is separated by between two sliding blocks certain
Distance.
A further improvement of the present invention is that：It is equipped with connecting plate at the top of the upper conical positioning pin, the clamping cylinder
Telescopic end is realized by the connection connecting plate and the connection of the upper conical positioning pin, described its outer surface of inferior pyramidal positioning pin
For elastic layer, buffer function can be played during rotation, avoid shaking.
A further improvement of the present invention is that：It is connected between the positioning plate and the clamping cylinder by attachment base, institute
Attachment base is stated in inverted L shape, vertical plane connects the clamping cylinder, and horizontal plane connects the positioning plate, sets on vertical plane
There is the slideway slided up and down for the clamping cylinder.
A further improvement of the present invention is that：Host computer processing display device includes host computer and connection,
Data are reached the host computer by the connection by the laser displacement sensor.
A further improvement of the present invention is that：The locating platform is concave inward structure, and the detection platform is equipped with cavity,
It is driven upside down in cavity for the nut slider and space is provided.
The present invention provides a kind of double excitation multi-diameter shaft axiality detection device, using laser displacement sensor as measurement work
Tool, in order to realize the coaxiality error Precision measurement between two ladder outer circle of workpiece for measurement, is positioned with inferior pyramidal on ladder inner hole
After finger setting, the two multi-diameter shaft outer circle column section centers of circle of workpiece or more are measured using upper and lower two laser displacement sensor respectively simultaneously
Measurement scheme, the servo operation component moved up and down drive two laser sensors to be moved to another section from a section simultaneously
It measures, the rotating seat in the rotary components of bottom surface drives the rotation of inferior pyramidal positioning pin, so that workpiece for measurement be driven to rotate, carries out
360 degree of detections, circumferential zero point are positioned by circumferentially positioned sensor by the magnet on rotating seat.Measurement numeric feedback is given
Host computer carries out circumferential engagement, obtains the external cylinder axis of the outer circular section deferent of benchmark downstairs and respectively with this
Axis is the upper ladder circle percardium cylinder in benchmark axle center, and the diameter of the envelope cylinder is coaxiality error, to differentiate the mistake
Difference provides distinguishing rule whether within the scope of concentricity tolerance.All size detections start to require to existing sensor
Carry out demarcate, specifically include following four step：
1. workpiece for measurement inner hole is placed among two conical dowel pins up and down first, and made on described by clamping cylinder
Conical dowel pin compresses the workpiece for measurement, adjusts the distance between two sliding blocks, so that two laser displacement sensors phase up and down
After a downstairs height distance, start driving motor, nut slider sliding drives two laser displacement sensors to return to up and down
The limit inferior mechanical zero of alignment sensor setting, laser displacement sensor laser at this time, which is projected, is radially directed check bit into face
It sets, upper and lower laser measuring point is thrown into respectively on the outer diameter of downstairs bottom and upper ladder bottom, is preferably prepared for size detection；
2. the stepper motor in the rotary components of bottom surface starts, rotating seat rotation drives the inferior pyramidal positioning pin rotation on the surfaces of revolution,
To drive workpiece for measurement axial-rotation, after rotating the circumferential zero point indicated to circumferentially positioned sensor, start to send out in rotation
The laser measurement values of the going up or down stairway cross-sectional outer diameter are given, and host computer is sent to by connection by laser displacement sensor
Stored and shown, until circumferential zero point is come back to after being rotated by 360 ° later, complete a section data acquisition and on
It passes；
3. driving motor starts, two laser displacement sensors of driving move up a certain distance（Such as 1 millimeter）, reach another
A sectional position repeats the measurement process of step 2, then stops uploading data, another rank after a stepped profile measurement
Terraced section continues to measure, until being measured；
4. after being measured, nut slider is allowed to return to mechanical zero, clamping cylinder drives the upper conical positioning pin to moving up
It is dynamic, take part detect away, the metrical information that host computer processing stores, fit lower outer cascaded surface as benchmark with
The deferent in the upper each section of cascaded surface, while the external cylinder of the outer circular section deferent of benchmark downstairs is first calculated
Axis, then show that upper ladder deferent envelope cylinder, the diameter of the envelope cylinder are two ranks using the axis as benchmark axle center
The coaxiality error of terraced outer circle.
Beneficial effects of the present invention：The present invention is using laser displacement sensor as measuring tool, first by boring up and down
Shape positioning pin determines axis of rotation, then passes through moving up and down for two laser displacement sensors, while outer ladder under measuring basis
The center of circle in face and each section of upper cascaded surface, then respectively connected in each section of upper ladder with the center of circle in each section of downstairs
Data processing is carried out, obtains the external cylinder axis of the outer circular section deferent of benchmark downstairs respectively, and with the axis is
The upper ladder deferent envelope cylinder in benchmark axle center, the diameter of the envelope cylinder are the coaxiality error of two ladder outer circles.
It is detected automatically using laser, it is not only time saving and energy saving, and piece test quality and detection efficiency can also be improved, it is surveyed to promoting to process
The development for measuring integrated technique has far reaching significance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is elevational schematic view of the invention；
Fig. 3 is positioning clamping device and bottom surface rotary components elevational schematic view in the present invention；
Fig. 4 is the operation schematic diagram that host computer handles display device in the present invention；
Wherein：1- detection platform, 2- locating platform, the circumferentially positioned sensor of 3-, 4- clamping cylinder, 5- positioning plate, 6- attachment base,
7- slideway, the upper conical positioning pin of 8-, 9- inferior pyramidal positioning pin, 10- connecting plate, 11- workpiece for measurement, 12- rotating seat, 13- motor,
14- motor support frame, 15- magnet, 16- laser displacement sensor, 17- support plate, 18- limit plate, 19- driving motor, 20-
Thick stick, 21- or more alignment sensor, 22- nut slider, 23- sliding block, 24- cavity, 25- host computer, 26- connection.
Specific embodiment
Below in conjunction with attached drawing by embodiment come the present invention is described in detail.
Such as Fig. 1, a kind of double excitation multi-diameter shaft axiality detection device, including detection platform 1, the detection platform are equipped with
Locating platform 2 and testing agency, the locating platform 2 are concave inward structure, and the testing agency includes positioning clamping device, bottom surface
Rotary components, bidifly optical detection device, servo motion device, circumferentially positioned sensor 3 and host computer handle display device.
The positioning clamping device includes the dowel device being arranged on the locating platform 2, clamping cylinder 4, and is used
In the positioning plate 5 of support clamping cylinder, the positioning plate 5 is arranged on the locating platform 2, and the setting of clamping cylinder 4 exists
The upper end of the positioning plate 5 is connected between the positioning plate 5 and the clamping cylinder 4 by attachment base 6, and the attachment base 6 is in
Inverted L shape, vertical plane connect the clamping cylinder 4, and horizontal plane connects the positioning plate 5, and vertical plane is equipped with described in confession
The slideway 7 that clamping cylinder slides up and down, the dowel device include about two corresponding upper conical positioning pins 8 and inferior pyramidal
Positioning pin 9 is equipped with connecting plate 10 at the top of the upper conical positioning pin 8, and the telescopic end of the clamping cylinder 4 is by connecting the company
Fishplate bar 10 is realized and the connection of the upper conical positioning pin 8, and described its outer surface of inferior pyramidal positioning pin 9 is elastic layer, is rotating
Buffering can be played in the process, avoid shaking.Work to be measured is placed between the upper conical positioning pin 8 and the inferior pyramidal positioning pin 9
Part 11.
The bottom surface rotary components include the rotating seat 12, motor 13 and motor support frame 14 for being used to support positioning, described
Circumferentially positioned sensor 3 is fixed at the circumferential position of the corresponding rotating seat 12 of the detection platform 1, the rotating seat 12
It is arranged on the locating platform 2, the inferior pyramidal positioning pin 9 is fixed on the surfaces of revolution of the rotating seat 12, the motor
13 are arranged below the detection platform 1 by motor support frame 14, and the motor shaft ends of the motor 13 connect the rotation
Seat 12, the edge of the rotating seat are equipped with the magnet 15 for determining positioning zero point, and the magnet 15 is used as an object of reference,
Positioning zero point is found convenient for the circumferentially positioned sensor, the motor is 13 servo step motors.
The bidifly optical detection device includes the laser displacement sensor 16 that two same longitudinal axis are placed, the servo fortune
Dynamic device includes supporting element and upper and lower servo operation component, and the supporting element includes support plate 17 and is separately positioned on the branch
Two pieces of limit plates 18 of 17 top and bottom of fagging, it is described up and down servo operation component include driving motor 19, lead screw 20, up and down
Alignment sensor 21 and nut slider 22,20 quantity of lead screw are three, are arranged between two pieces of limit plates 18, described
The through-hole passed through for lead screw is equipped with inside nut slider 22, the nut slider 22 is through on the lead screw 20 by through-hole set,
The top of lower end limit plate is arranged in the alignment sensor 21 up and down, and the driving motor is fixed on the limit plate of upper end, uses
It is slided up and down in controlling the nut slider.The side of the nut slider 22 is equipped with upper and lower two sliding blocks 23, and two described sharp
Optical displacement sensor 16 is separately positioned on two sliding blocks 23, and is oppositely arranged with dowel device, is separated by between two sliding blocks
Certain distance, the detection platform 1 are equipped with cavity 24, and it is described that the support plate 17, lead screw 20, which all run through the cavity 24,
Nut slider 22 drives upside down in cavity 24 provides space.
The host computer processing display device includes host computer 25 and connection 26, the laser displacement sensor 16
Data are reached into the host computer 25 by the connection 26.
The present embodiment provides a kind of double excitation multi-diameter shaft axiality detection devices, are made using two laser displacement sensors 16
For measuring tool, in order to realize the coaxiality error Precision measurement between 11 liang of ladder outer circles of workpiece for measurement, on ladder inner hole
After inferior pyramidal positions finger setting, about 11 two ladder of workpiece for measurement is measured using upper and lower two laser displacement sensor 16 respectively simultaneously
The measurement scheme in the axis outer circle column section center of circle, the servo operation component moved up and down drive two laser sensors 16 simultaneously from one
Section is moved to another section and measures, and the rotating seat 12 in the rotary components of bottom surface drives inferior pyramidal positioning pin 9 to rotate, from
And workpiece for measurement 11 is driven to rotate, 360 degree of detections are carried out, circumferential zero point is passed through on rotating seat 12 by circumferentially positioned sensor 3
Magnet 15 is positioned.It gives measurement numeric feedback to the progress circumferential engagement of host computer 25, is obtained outside benchmark downstairs respectively
The external cylinder axis of circular section deferent and using the axis as the upper ladder circle percardium cylinder in benchmark axle center, envelope circle
The diameter of column is coaxiality error, to differentiate that the error whether within the scope of concentricity tolerance, provides distinguishing rule.
All size detections start to require demarcating to existing sensor, with rank under the multi-diameter shaft with inner hole
For on the basis of terraced axis periphery, following four step is specifically included：
1. 11 inner hole of workpiece for measurement is placed among upper conical positioning pin 8 and inferior pyramidal positioning pin 9 first, and pass through clamping
Cylinder 4 makes the upper conical positioning pin 8 compress the workpiece for measurement 11, adjusts the distance between two sliding blocks 23, so that two
After about 16 laser displacement sensor is separated by a downstairs height distance, start driving motor 19,22 slip band of nut slider
Dynamic two laser displacement sensors 16 return to the limit inferior mechanical zero that upper and lower alignment sensor 21 is set, and laser displacement at this time passes
16 laser of sensor, which is projected, is radially directed detection position into face, and upper and lower laser measuring point throws into downstairs bottom and upper ladder most respectively
On the outer diameter of lower section, preferably prepare for size detection；
2. the stepper motor 13 in the rotary components of bottom surface starts, the rotation of rotating seat 12 drives the inferior pyramidal positioning pin on the surfaces of revolution
Rotation 9 after rotating the circumferential zero point indicated to circumferentially positioned sensor 3, starts side to drive 11 axial-rotation of workpiece for measurement
Rotation side sends the laser measurement values of the going up or down stairway cross-sectional outer diameter, and is sent by laser displacement sensor 16 by connection 26
It is stored and is shown to host computer 25, until circumferential zero point is come back to after being rotated by 360 ° later, complete a section
Data acquisition and upload；
3. driving motor 19 starts, two laser displacement sensors 16 of driving move up 1 millimeter of distance, reach another section
Position repeats the measurement process of step 2, then stops uploading data, another stepped profile after a stepped profile measurement
Continue to measure, until being measured；
4. after being measured, nut slider 22 is allowed to return to mechanical zero, clamping cylinder 4 drives the upper conical positioning pin 8 upwards
It is mobile, take the part detected away, the metrical information of the processing storage of host computer 25 fits the lower outer ladder as benchmark
The deferent in face and each section of upper cascaded surface, while the external of the outer circular section deferent of benchmark downstairs is first calculated
Cylinder axis, then show that upper ladder deferent envelope cylinder, the diameter of the envelope cylinder are using the axis as benchmark axle center
The coaxiality error of two ladder outer circles.
The beneficial effect of the present embodiment：The present embodiment is using laser displacement sensor as measuring tool, first by upper
Inferior pyramidal positioning pin determines axis of rotation, then passes through moving up and down for two laser displacement sensors, while outer under measuring basis
The center of circle of cascaded surface and each section of upper cascaded surface, then respectively connect the center of circle in each section of upper ladder and each section of downstairs
The external cylinder axis for obtaining the outer circular section deferent of benchmark downstairs respectively to carry out data processing is picked up, and with the axis
Line is the upper ladder deferent envelope cylinder in benchmark axle center, and the diameter of the envelope cylinder is that the concentricity of two ladder outer circles is missed
Difference.It is detected automatically using laser, it is not only time saving and energy saving, and piece test quality and detection efficiency can also be improved, add to promoting
The development that work measures integrated technique has far reaching significance.
The above-mentioned implementation enumerated is only to illustration of the present invention, is not restriction made for the present invention.The present invention is also
It can be implemented using other way, herein not redundant one by one.All technical solutions formed using equivalent replacement or transformation,
Belong to the present invention claims protection scope.
Claims (9)
1. a kind of double excitation multi-diameter shaft axiality detection device, it is characterised in that：Including detection platform, set in the detection platform
There are locating platform and testing agency, the testing agency includes positioning clamping device, bottom surface rotary components, bidifly light detection dress
It sets, servo motion device, circumferentially positioned sensor and host computer handle display device, and the positioning clamping device includes that setting exists
Dowel device, clamping cylinder on the locating platform, and it is used to support the positioning plate of clamping cylinder, the bottom surface rotation group
Part setting is arranged on the servo motion device in the dowel device bottom, the bidifly optical detection device, including two
The laser displacement sensor that a same longitudinal axis is placed, the servo motion device includes supporting element and upper and lower servo operation group
Part, the servo operation component up and down includes driving motor, lead screw, upper and lower alignment sensor and nut slider.
2. a kind of double excitation multi-diameter shaft axiality detection device according to claim 1, it is characterised in that：The positioning plate
It is arranged on the locating platform, the dowel device includes that about two corresponding upper conical positioning pins and inferior pyramidal position
Pin, the upper end of the positioning plate is arranged in the clamping cylinder, and makes the telescopic end of the clamping cylinder and described upper conical
The top of positioning pin is connected.
3. a kind of double excitation multi-diameter shaft axiality detection device according to claim 2, it is characterised in that：The bottom surface rotation
Turning component includes the rotating seat, motor and motor support frame for being used to support positioning, and the rotating seat is arranged in the locating platform
On, the fixation circumferential position that the rotating seat is corresponded in detection platform, the inferior pyramidal is arranged in the circumferentially positioned sensor
Positioning pin is arranged on the surfaces of revolution of the rotating seat, and the motor is arranged under the detection platform by motor support frame
The motor shaft ends of side, the motor connect the rotating seat.
4. a kind of double excitation multi-diameter shaft axiality detection device according to claim 1, it is characterised in that：The supporting element
Including support plate and two pieces of limit plates of the support plate top and bottom are separately positioned on, the lead screw is arranged in two pieces of institutes
It states between limit plate, the nut slider set is through on the lead screw, and the alignment sensor up and down is arranged in lower end limit plate
Top.
5. a kind of double excitation multi-diameter shaft axiality detection device according to claim 4, it is characterised in that：The slide nut
The side of block is equipped with upper and lower two sliding blocks, and two laser displacement sensors are separately positioned on two sliding blocks.
6. a kind of double excitation multi-diameter shaft axiality detection device according to claim 2, it is characterised in that：It is described upper conical
It is equipped with connecting plate at the top of positioning pin, the telescopic end of the clamping cylinder is realized by connecting the connecting plate and described upper conical fixed
The connection of position pin, described its outer surface of inferior pyramidal positioning pin are elastic layer.
7. a kind of double excitation multi-diameter shaft axiality detection device according to claim 1, it is characterised in that：The positioning plate
It being connected between the clamping cylinder by attachment base, the attachment base is in inverted L shape, and vertical plane connects the clamping cylinder,
Its horizontal plane connects the positioning plate, and vertical plane is equipped with the slideway slided up and down for the clamping cylinder.
8. a kind of double excitation multi-diameter shaft axiality detection device according to claim 1, it is characterised in that：The host computer
Handling display device includes host computer and connection, and the laser displacement sensor is reached data by the connection
The host computer.
9. a kind of double excitation multi-diameter shaft axiality detection device according to claim 1, it is characterised in that：The positioning is flat
Platform is concave inward structure, and the detection platform is equipped with cavity, drives upside down in cavity for the nut slider and provides space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087424.0A CN108917660A (en) | 2018-09-18 | 2018-09-18 | A kind of double excitation multi-diameter shaft axiality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087424.0A CN108917660A (en) | 2018-09-18 | 2018-09-18 | A kind of double excitation multi-diameter shaft axiality detection device |
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| Publication Number | Publication Date |
|---|---|
| CN108917660A true CN108917660A (en) | 2018-11-30 |
Family
ID=64408089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811087424.0A Pending CN108917660A (en) | 2018-09-18 | 2018-09-18 | A kind of double excitation multi-diameter shaft axiality detection device |
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| CN (1) | CN108917660A (en) |
Cited By (3)
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| CN109434405A (en) * | 2018-12-07 | 2019-03-08 | 常州利腾机械有限公司 | A kind of multi-diameter shaft assembled orientation feeding detection device |
| CN112762866A (en) * | 2020-12-29 | 2021-05-07 | 江柴发动机徐州有限公司 | Coaxiality detection device of generator main shaft and working method of coaxiality detection device |
| CN113238241A (en) * | 2021-06-02 | 2021-08-10 | 长春奔腾瑞马自动化有限公司 | Positioning pin three-dimensional deviation laser measuring device |
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| CN109434405A (en) * | 2018-12-07 | 2019-03-08 | 常州利腾机械有限公司 | A kind of multi-diameter shaft assembled orientation feeding detection device |
| CN112762866A (en) * | 2020-12-29 | 2021-05-07 | 江柴发动机徐州有限公司 | Coaxiality detection device of generator main shaft and working method of coaxiality detection device |
| CN112762866B (en) * | 2020-12-29 | 2022-07-01 | 江柴发动机徐州有限公司 | Coaxiality detection device of generator main shaft and working method of coaxiality detection device |
| CN113238241A (en) * | 2021-06-02 | 2021-08-10 | 长春奔腾瑞马自动化有限公司 | Positioning pin three-dimensional deviation laser measuring device |
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Application publication date: 20181130 |