CN106441190A - Universal joint size measurement device - Google Patents

Universal joint size measurement device Download PDF

Info

Publication number
CN106441190A
CN106441190A CN201610891793.XA CN201610891793A CN106441190A CN 106441190 A CN106441190 A CN 106441190A CN 201610891793 A CN201610891793 A CN 201610891793A CN 106441190 A CN106441190 A CN 106441190A
Authority
CN
China
Prior art keywords
gauge head
cross axle
fixed seat
measurement apparatus
probes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610891793.XA
Other languages
Chinese (zh)
Other versions
CN106441190B (en
Inventor
余劲松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Bose Intelligent Technology Co Ltd
Original Assignee
Suzhou Bose Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Bose Intelligent Technology Co Ltd filed Critical Suzhou Bose Intelligent Technology Co Ltd
Priority to CN201610891793.XA priority Critical patent/CN106441190B/en
Publication of CN106441190A publication Critical patent/CN106441190A/en
Application granted granted Critical
Publication of CN106441190B publication Critical patent/CN106441190B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/10Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters

Abstract

The invention provides a universal joint size measurement device. The device comprises a bottom plate for supporting a universal joint, the bottom plate is provided with a measurement mechanism used for measuring the axial length of the universal joint and the diameter of a shaft neck, the measurement mechanism comprises two first probes, two second probes, a displacement sensor, a driving assembly and a driving device, the two first probes can make contact with two axial shaft neck ends of the universal joint respectively, the two second probes can abut against the two shaft neck side walls respectively, the displacement sensor is used for measuring the displacement amount of the first probe and the displacement amount of the second probe, the driving assembly is used for driving the two probes and the two second probes, and the driving device drives the displacement sensor to move to or opposite to the first probes and the second probes. An indirect measurement means is used in the measurement device, the displacement sensor is prevented from making direct contact with the universal joint, the displacement sensor is effectively protected, and the service life is prolonged. The measurement device achieves point contact, and the problems that during surface contact or linear contact, a measurement device is low in machining precision and precision is difficult to guarantee are avoided.

Description

A kind of cross axle dimension measuring device
Technical field
The present invention relates to a kind of measurement apparatus, more particularly to a kind of cross axle dimension measuring device.
Background technology
Cross axle, also known as crossed joint, is the parts for realizing the transmission of varied angle power, for needing to change transmission axis direction Position, it is automobile driving system " joint " part.At present, the axial length of cross axle with during journal diameter dimensional measurement Based on face contact and linear contact lay, so for very high, smart for the gauge head of measurement and the processing request of stationary plane (workpiece) Degree it is difficult to ensure that, and fabrication cycle length, adjustment and maintenance cost height;In prior art dimensional measurement be all by displacement transducer Directly contact product is measured, without corresponding protective measure, cause displacement tactility apparatus short life, damage frequency higher, dimension Shield cost increase.
In view of above-mentioned defect, the design people, positive research and innovation in addition, to founding a kind of cross axle dimensional measurement Device so as to more the value in industry.
Content of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of cross axle dimension measuring device, the measurement dress The measurement means using point contact are put, and being capable of effective protection displacement transducer.
A kind of cross axle dimension measuring device of the present invention, including the base plate for supporting the cross axle, the base plate It is provided with and the axial length of the cross axle and the measuring mechanism of journal diameter is measured, the measuring mechanism includes that two can be with institute State the first gauge head, two that on the same axial direction of cross axle, two collar end are contacted respectively to be able to and two axle journal side on same axial direction The second gauge head that wall offsets, the displacement transducer of the first gauge head of measurement and the second gauge head displacement, drive two first gauge heads and two The drive component of the second gauge head movement and institute displacement sensors are driven towards/dorsad first gauge head and the second gauge head Mobile driving means.
Further, the detent mechanism positioned by the cross axle, the detent mechanism are additionally provided with the base plate Including two along the same support block being axially distributed of the cross axle, the support block is provided with the first reference axis for constituting V-shaped groove With the second reference axis.
Further, on the base plate, position-limit mechanism is additionally provided with, the position-limit mechanism includes that two is another along the cross axle The gripper shoe being axially distributed, the wherein end of a gripper shoe have the first V-groove, the end of another gripper shoe is curved surface, two institutes State gripper shoe end contact with detent mechanism less than the cross axle after horizontal section.
Further, the jacking-up spacing mechanism for driving the cross axle lifting, the jacking limit are additionally provided with the base plate Position mechanism includes supporting plate, drives supporting plate to hold up the first cylinder of the cross axle, and the supporting plate is provided with two with the cross axle The second V-groove that on same axial direction, two axle journals are contacted respectively.
Further, the drive component include base, arrange base on line slide rail, along line slide rail slide and with The second cylinder that the gauge head fixed seat of the first gauge head/the second gauge head connection, driving gauge head fixed seat are slided, second cylinder is defeated Go out end and the contiguous block for sliding along line slide rail is connected with, the base is provided with spring fixed seat, is connected with the contiguous block Spring, the spring is connected through the gauge head fixed seat with the spring fixed seat.
Further, the driving means include the displacement transducer fixed seat being arranged on the base, the displacement Guide pin bushing is equipped with sensor fixed seat, institute's displacement sensors are set in the guide pin bushing, the guide pin bushing is provided with driving institute The flexible pneumatic member of displacement sensors.
Further, the measuring mechanism also includes to be located at the protective cover on institute's displacement sensors and drive component.
Further, some adjustable plates for connecting the measuring mechanism are additionally provided with the base plate, are set on the adjustable plate There are some kidney slots.
Further, the base plate is provided with the rule of measuring mechanism position described in labelling.
Further, the end of first gauge head is spherical, and it is curved surface that second gauge head is tabular, its end.
Further, below the base plate, damping is provided with.
By such scheme, the present invention at least has advantages below:
The measurement apparatus of the present invention adopt indirect type measurement means, it is to avoid displacement transducer is directly contacted with cross axle, and It is to be contacted with cross axle by gauge head, displacement of the displacement transducer by induction feeler, size is conversed, effective protection displacement Sensor, increases the service life;The reference axis for constituting V-type is provided with the detent mechanism of the measurement apparatus and gauge head is curved surface, real Show and a little contacted, it is to avoid the problem that when face contact or linear contact lay, measurement apparatus machining accuracy is high, degree of accuracy is difficult to ensure card.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the structural representation of indirect type measuring mechanism in apparatus of the present invention;
Fig. 3 is the structural representation of detent mechanism in apparatus of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement Example is for illustrating the present invention, but is not limited to the scope of the present invention.
Referring to Fig. 1 to Fig. 3, a kind of cross axle dimension measuring device described in a preferred embodiment of the present invention, including for The base plate 1 of the cross axle 2 is supported, the base plate 1 is provided with the axial length for measuring the cross axle 2 and 3 diameter of axle journal Measuring mechanism, the measuring mechanism include two can be contacted with two axle journals, 3 end on the same axial direction of the cross axle 2 respectively The second gauge head 15 that one gauge head 16, two is able to offset with two axle journal on same axial direction, 3 side wall, the first gauge head 16 of measurement and the The displacement transducer 4 of two gauge heads, 15 displacement, drive drive component that two first gauge heads 16 and two second gauge head 15 move and Institute displacement sensors 4 are driven towards/driving means that dorsad first gauge head 15 and the second gauge head 16 are moved.
For ensureing the accuracy of measurement, the detent mechanism positioned by the cross axle 2 on the base plate 1, is additionally provided with, The detent mechanism includes two along the same support block 12 being axially distributed of the cross axle 2, and the support block 12 is provided with composition V First reference axis 13 of shape groove and the second reference axis 14.The axle journal 3 of cross axle 2 and the first reference axis 13 and the second reference axis 14 hang down Directly and in point contact, due to action of gravity, V-type design is applicable to the cross axle 2 of fixing difference 3 diameter of axle journal.
Preferably, on the base plate 1, position-limit mechanism is additionally provided with, the position-limit mechanism includes that two is another along the cross axle 2 The gripper shoe 21 being axially distributed, the wherein end of a gripper shoe 21 have the first V-groove 17, the end of another gripper shoe 21 is song Face, the end of gripper shoe 21 described in two contact with detent mechanism less than the cross axle 2 after horizontal section, it is to avoid cross axle 2 Hanging on the first reference axis 13 and the second reference axis 14, cause to measure wrong.
Cross axle 2 wherein one is axially measured for convenience finish after rotate 90 °, measure another axial length and axle journal 3 Diameter, is additionally provided with the jacking-up spacing mechanism for driving the cross axle 2 to lift on the base plate 1, the jacking-up spacing mechanism includes Supporting plate, driving supporting plate hold up the first cylinder 22 of the cross axle 2, and the supporting plate is provided with two with the same axle of the cross axle 2 The second V-groove 24 that two axle journals 3 are contacted respectively upwards.
For realizing the motion of 16/ second gauge head 15 of the first gauge head, the drive component includes base 29, arranges on base 29 Line slide rail 7, the gauge head fixed seat 5 that slides along line slide rail 7 and be connected with 16/ second gauge head 15 of the first gauge head, drive survey The second cylinder 23 that head fixed seat 5 is slided, 23 outfan of the second cylinder is connected with the contiguous block 6 for sliding along line slide rail 7, The base 29 is provided with spring fixed seat 8, is connected with spring 9 on the contiguous block 6, and the spring 9 is solid through the gauge head Reservation 5 is connected with the spring fixed seat 8, it is ensured that the first 16/ second gauge head of gauge head 15 is in close contact cross axle 2, it is to avoid rigidity Collision rift resilience, causes 16/ second gauge head 15 of the first gauge head to have gap with 2 surface of cross axle.
For realizing displacement sensors 4 towards/dorsad first gauge head 16 and the second gauge head 15 move, the driving Device includes the displacement transducer fixed seat 11 being arranged on the base 29, is equipped with institute displacement sensors fixed seat 11 Guide pin bushing 25, institute's displacement sensors 4 are set in the guide pin bushing 25, and the guide pin bushing 25 is provided with driving institute displacement sensors 4 Flexible pneumatic member 26.
For protecting displacement transducer 4 further, the measuring mechanism also includes to be located at institute's displacement sensors 4 and drive Protective cover 19 on component.
For convenience of the various sizes of cross axle 2 of measurement is adapted to, position of the measuring mechanism on base plate 1, the base plate 1 is adjusted On be additionally provided with some adjustable plates 27 for connecting the measuring mechanism, the adjustable plate 27 is provided with some kidney slots 28.
Preferably, the base plate 1 is provided with the rule 18 of measuring mechanism position described in labelling.
For realizing point contact measurement, the end of first gauge head 16 is spherical, and second gauge head 15 is tabular, its End is curved surface, it is ensured that the size for measuring is the diameter that most grows.
For reaching further accurate measurement, 1 lower section of the base plate is provided with damping 20.
The operation principle of the present invention is as follows:
First with correcting member, displacement transducer 4 is corrected, sets datum mark () at 0 point.
When original state is in, 22 jack-up of the first cylinder, 4 return of displacement transducer, 23 return of the second cylinder, by be measured ten Two axle journals 3 of the wherein axial direction of word axle 2 are put on the second V-groove 24,22 return of the first cylinder, drive the second V-groove 24 and ten Word axle 2 declines, and during decline, the axle journal 3 at another axial two ends of cross axle 2 is contacted with the second reference axis 14 respectively, now cross Axle 2 is separated with the second V-groove 24, cross axle 2 by self gravitation along 14 slide downward of the second reference axis, when with the first reference axis 13 During contact, 2 stop motion of cross axle, positioning are completed, first V-type of the cross axle 2 when gliding with 21 end of a wherein gripper shoe Groove 17, the curved surface of 21 end of another gripper shoe have contacted but will not be while contacting;When measuring, the second cylinder 23 goes out position, bullet Spring 9 shrinks the gauge head fixed seat 5 for driving on line slide rail 7,16/ second gauge head 15 of the first gauge head and is moved along a straight line, until with 2 points of contacts of cross axle, displacement transducer 4 is stretched out under the driving of pneumatic member 26 and is contacted with gauge head fixed seat 5 and measure the first survey The displacement of 16/ second gauge head 15.
Axial length survey calculation:By two 4 numerical value of displacement transducer additions of 3 end of axle journal, (numerical value just has respectively Negative), and correcting member actual value is added, if numerical value is in range of error, it is size qualification, conversely, being off-dimension;
Journal Diameter Measuring is calculated:3 side list of axle journal props up 4 numerical value of displacement transducer plus correcting member actual value, if numerical value In range of error, it is size qualification, conversely, off-dimension.
After measurement is finished, the return under the driving of pneumatic member 26 of displacement transducer 4, groove is provided with contiguous block 6, card in groove There is adjustment screw 10, the adjustment screw 10 is connected with the outfan of the second cylinder 23 by screw rod, 23 return of the second cylinder, and Contiguous block 6 and 5 return of gauge head fixed seat are pulled by adjusting screw 10, while 15 return of the first 16/ second gauge head of gauge head, first 22 jack-up of cylinder, the second V-groove 24 holds up cross axle 2, under the cooperation of mechanical hand, is put after cross axle 2 is rotated 90 ° again Enter, 22 return of the first cylinder, another axial length to cross axle 2 and remaining two axle journals, 3 diameter are measured.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, it is noted that for this skill For the those of ordinary skill in art field, on the premise of without departing from the technology of the present invention principle, can also make some improvement and Modification, these improve and modification also should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of cross axle dimension measuring device, it is characterised in that:Including the base plate for supporting the cross axle, the base plate It is provided with and the axial length of the cross axle and the measuring mechanism of journal diameter is measured, the measuring mechanism includes that two can be with institute State the first gauge head, two that on the same axial direction of cross axle, two collar end are contacted respectively to be able to and two axle journal side on same axial direction The second gauge head that wall offsets, the displacement transducer of the first gauge head of measurement and the second gauge head displacement, drive two first gauge heads and two The drive component of the second gauge head movement and institute displacement sensors are driven towards/dorsad first gauge head and the second gauge head Mobile driving means.
2. measurement apparatus according to claim 1, it is characterised in that:Being additionally provided with the base plate is carried out to the cross axle The detent mechanism of positioning, the detent mechanism includes two along the same support block being axially distributed of the cross axle, the support block It is provided with the first reference axis and the second reference axis for constituting V-shaped groove.
3. measurement apparatus according to claim 2, it is characterised in that:Position-limit mechanism is additionally provided with the base plate, the limit Position mechanism include two along another axially distribution of the cross axle gripper shoes, wherein the end of a gripper shoe have the first V-groove, The end of another gripper shoe be curved surface, the end of gripper shoe described in two contact with detent mechanism less than the cross axle after level Tangent plane.
4. measurement apparatus according to any one of claim 1-3, it is characterised in that:It is described that driving is additionally provided with the base plate The jacking-up spacing mechanism of cross axle lifting, the jacking-up spacing mechanism includes supporting plate, drives supporting plate to hold up the of the cross axle One cylinder, the supporting plate is provided with two the second V-groove for being contacted with two axle journals on the same axial direction of the cross axle respectively.
5. measurement apparatus according to claim 1, it is characterised in that:The drive component includes base, arranges on base Line slide rail, the gauge head fixed seat that slides along line slide rail and be connected with the first gauge head/the second gauge head, driving gauge head fixed seat The second cylinder for sliding, the second cylinder outfan is connected with the contiguous block for sliding along line slide rail, and the base is provided with Spring fixed seat, is connected with spring on the contiguous block, and the spring is through the gauge head fixed seat and the spring fixed seat Connection.
6. measurement apparatus according to claim 1, it is characterised in that:The driving means include to be arranged on the base Displacement transducer fixed seat, be equipped with guide pin bushing in institute's displacement sensors fixed seat, institute's displacement sensors are set in described In guide pin bushing, the guide pin bushing is provided with the pneumatic member for driving institute's displacement sensors flexible.
7. measurement apparatus according to claim 1, it is characterised in that:The measuring mechanism also includes to be located at the displacement Protective cover on sensor and drive component.
8. measurement apparatus according to claim 1, it is characterised in that:The connection measuring mechanism is additionally provided with the base plate Some adjustable plates, the adjustable plate is provided with some kidney slots.
9. measurement apparatus according to claim 8, it is characterised in that:The base plate is provided with measuring mechanism position described in labelling The rule that puts.
10. measurement apparatus according to claim 1, it is characterised in that:The end of first gauge head for spherical, described the Two gauge heads are tabular, and its end is curved surface.
CN201610891793.XA 2016-10-13 2016-10-13 Cross axle size measuring device Active CN106441190B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610891793.XA CN106441190B (en) 2016-10-13 2016-10-13 Cross axle size measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610891793.XA CN106441190B (en) 2016-10-13 2016-10-13 Cross axle size measuring device

Publications (2)

Publication Number Publication Date
CN106441190A true CN106441190A (en) 2017-02-22
CN106441190B CN106441190B (en) 2020-06-19

Family

ID=58173813

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610891793.XA Active CN106441190B (en) 2016-10-13 2016-10-13 Cross axle size measuring device

Country Status (1)

Country Link
CN (1) CN106441190B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108844434A (en) * 2018-05-25 2018-11-20 南京埃斯顿智能系统工程有限公司 Novel cross shaft detection device
CN109238192A (en) * 2018-11-07 2019-01-18 南京马波斯自动化设备有限公司 A kind of special-shaped slot dimension measuring device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787149A (en) * 1982-01-15 1988-11-29 Marposs Societa' Per Azioni Gauge for checking linear dimensions of mechanical pieces
EP0410321A2 (en) * 1989-07-21 1991-01-30 PRIMA INDUSTRIE S.p.A. Method and apparatus for the automatic measurement of diameters and lenghts of solids of revolution
CN201034569Y (en) * 2007-03-30 2008-03-12 攀钢集团攀枝花钢铁研究院 Measuring apparatus
CN203940846U (en) * 2014-06-23 2014-11-12 杭州新松机器人自动化有限公司 The diameter of axle pick-up unit of cylindrical work
CN105698731A (en) * 2016-04-14 2016-06-22 上海精智实业有限公司 Apparatus for detecting inner and outer diameters of ball cage
CN105698727A (en) * 2016-03-16 2016-06-22 杭州正强万向节有限公司 Full automatic intelligent detector for cross axle axis universal joint
CN205580417U (en) * 2016-04-21 2016-09-14 苏州博众精工科技有限公司 Subassembly of measurationing
CN206177268U (en) * 2016-10-13 2017-05-17 苏州玻色智能科技有限公司 Cross axle size measurement device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787149A (en) * 1982-01-15 1988-11-29 Marposs Societa' Per Azioni Gauge for checking linear dimensions of mechanical pieces
EP0410321A2 (en) * 1989-07-21 1991-01-30 PRIMA INDUSTRIE S.p.A. Method and apparatus for the automatic measurement of diameters and lenghts of solids of revolution
CN201034569Y (en) * 2007-03-30 2008-03-12 攀钢集团攀枝花钢铁研究院 Measuring apparatus
CN203940846U (en) * 2014-06-23 2014-11-12 杭州新松机器人自动化有限公司 The diameter of axle pick-up unit of cylindrical work
CN105698727A (en) * 2016-03-16 2016-06-22 杭州正强万向节有限公司 Full automatic intelligent detector for cross axle axis universal joint
CN105698731A (en) * 2016-04-14 2016-06-22 上海精智实业有限公司 Apparatus for detecting inner and outer diameters of ball cage
CN205580417U (en) * 2016-04-21 2016-09-14 苏州博众精工科技有限公司 Subassembly of measurationing
CN206177268U (en) * 2016-10-13 2017-05-17 苏州玻色智能科技有限公司 Cross axle size measurement device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108844434A (en) * 2018-05-25 2018-11-20 南京埃斯顿智能系统工程有限公司 Novel cross shaft detection device
CN109238192A (en) * 2018-11-07 2019-01-18 南京马波斯自动化设备有限公司 A kind of special-shaped slot dimension measuring device
CN109238192B (en) * 2018-11-07 2023-12-12 南京马波斯自动化设备有限公司 Special-shaped groove size measuring device

Also Published As

Publication number Publication date
CN106441190B (en) 2020-06-19

Similar Documents

Publication Publication Date Title
US10060737B2 (en) Method and machine for determining a shape contour on a measurement object
JP6366926B2 (en) Industrial machine and method for measuring the amount of expansion and contraction
CN201964854U (en) Special measuring tool for clamp spring slot of internal and external spherical cage external starwheels
CN204188155U (en) Bearing outside diameter testing agency
CN203672347U (en) Three-coordinate measuring instrument
CN107150261B (en) Axial workpiece profile measurer and its application
CN106441190A (en) Universal joint size measurement device
CN102012211A (en) Three pairs of sliding pair-spherical hinge-spherical hinge (3-PSS) mechanism-based coordinate measuring machine
CN206177268U (en) Cross axle size measurement device
CN211120924U (en) Crankshaft end face run-out and verticality gauge
CN105737781B (en) The elongated dedicated 3-D measuring apparatus of thin wall work-piece
CN202177353U (en) Special measuring device for distance between symmetrical inner ball path tops of outer wheel of C.V. joint
CN204666093U (en) A kind of non-contact measurement mechanical arm
JP5642213B2 (en) Machine tool level adjustment method and apparatus
SU1167413A1 (en) Coordinate measuring machine
CN214392264U (en) Arc-adjusting ruler for sector section
CN209214567U (en) A kind of special-shaped slot dimension measuring device
CN107907091B (en) Measuring device and method for measuring waveform error of lip of waveform lip oil seal mold core
US7107695B2 (en) Device and process for profile measurement
CN215984969U (en) Tension measuring tool suitable for elastic chain system
CN103398692A (en) Mechanism for measuring bore diameter of part
RU142880U1 (en) DEVICE FOR CONTROL OF POWER STRAINS OF COORDINATION AND BORING MACHINES
JP6025905B2 (en) 3D coordinate measuring machine
US20230128675A1 (en) Grinding machine centering gauge
CN214426620U (en) Frock is measured to drum sieve beat degree

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant