CN107790901A - Auto parts carry out the clamping device of laser marking - Google Patents
Auto parts carry out the clamping device of laser marking Download PDFInfo
- Publication number
- CN107790901A CN107790901A CN201711023771.2A CN201711023771A CN107790901A CN 107790901 A CN107790901 A CN 107790901A CN 201711023771 A CN201711023771 A CN 201711023771A CN 107790901 A CN107790901 A CN 107790901A
- Authority
- CN
- China
- Prior art keywords
- laser marking
- clamping device
- carry out
- auto parts
- pedestal
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
The invention discloses the clamping device that auto parts carry out laser marking,Including pedestal,The top of pedestal is provided with two movable plates,Movable plate can move on pedestal along horizontal direction,Two boss are equipped with the top of movable plate,Boss is located at the axis both sides of movable plate respectively,Cross bar is provided between two boss,Madial wall of the both ends of cross bar respectively with two boss is connected,Cross bar is provided with two the first sliding blocks,First sliding block can move along the axis direction of cross bar,Support tube is equipped with the top of first sliding block,Strut is provided with support tube,Strut can move along the axis direction of support tube,The top of strut is provided with supporting table,The top of supporting table is provided with two arc fixed blocks,Arc fixed block can move in supporting table along horizontal direction,The inside of arc fixed block is equipped with contiguous block,Motion bar is additionally provided between the contiguous block of two arc fixed blocks,Motion bar is connected by screw thread with contiguous block.
Description
Technical field
The present invention relates to laser marking machine technical field, and in particular to auto parts carry out the clamping device of laser marking.
Background technology
Marking machine is the concept of a broad sense, and it is broadly divided into pneumatic, laser, galvano-cautery three major types type, pneumatically：Computer control
System, print needle do high-frequency percussion campaign under compressed air effect, so as to print the mark of certain depth, mark on workpiece
Note feature:There is larger depth；Laser marking machine is to stamp permanent mark in a variety of material surfaces with laser beam.Mark
Effect be that deep layer material is exposed by the evaporation of entry material, so as to carve fineness pattern, trade mark and word；Galvano-cautery master
Changeless trade mark is printed, just as affixing one's seal, but prints content change inconvenience, marking machine point many kinds, most often
That sees has pneumatic marking machine, electromagnetism marking machine and laser marking machine.Pneumatic marking machine is that computer controls print needle in X, Y bis-
While in dimensional plane by certain track motion, print needle does high-frequency percussion campaign under compressed air effect, so as in workpiece
On print the mark of certain depth, the characteristics of dynamic marking machine on have larger depth, mark output, font are taken by computer direct
A variety of, mark is carefully and neatly done clear；Electromagnetism marking machine is to produce magnetic field using magnet coil to drive the motion of alloy labelling head, by electromagnetic wire
Circle driving alloy marking needle, forms deep mixed pit in working surface, so as to form identification information；Laser marking machine is main
Using CO2 lasers, without cooling device when being work the advantages of the laser, safeguard simple, power-up can be used, and price is just
Preferably, service life is grown, conversion efficiency height etc., another using it is more be optical fiber laser, be work the advantages of the laser
Stablize, service life length, high conversion efficiency, printing lines are thin.
Laser marking machine is widely used in the manufacture of auto parts, and the lot number of product can be got using laser marking machine
Date of manufacture, order of classes or grades at school etc., be advantageous to tracking of products record.At present, when carrying out laser marking to axial workpiece, generally require and match somebody with somebody
The fixture for fixing axial workpiece is equipped with, the axial workpiece for treating mark is fixed on fixture, then laser marking is carried out to it,
The fixture of the axial workpiece of laser marking machine is currently used for, it is most of that a workpiece for treating mark can only be all installed, to workpiece
When carrying out mark, a workpiece can only be installed every time, it is necessary to which the instrument is removed from fixture after the work pieces process is complete
Afterwards, then next workpiece to be processed is reinstalled, so that during a upper work pieces process, operating personnel, which are in, to be waited
State, after the completion for the treatment of a work pieces process, then next workpiece is placed, its processing efficiency is low.
The content of the invention
The technical problems to be solved by the invention are to overcome deficiency of the prior art, and it is an object of the present invention to provide auto parts enter
The clamping device of row laser marking, enabling the axle part to be processed to two is fixed, and improves the processing to axle part
Efficiency.
The present invention is achieved through the following technical solutions：
Auto parts carry out the clamping device of laser marking, including pedestal, the top of pedestal are provided with two movable plates, mobile
Plate can be moved on pedestal along horizontal direction, and two boss are equipped with the top of the movable plate, and boss is located at respectively
The axis both sides of movable plate, are provided with cross bar between two boss, and the madial wall of the both ends of cross bar respectively with two boss is connected, institute
State cross bar and be provided with two the first sliding blocks, the first sliding block is enclosed on cross bar, and the first sliding block can be along the axis of cross bar
Direction is moved, and support tube is equipped with the top of first sliding block, is provided with strut in support tube, strut can be along support tube
Axis direction moves, and the top of strut is provided with supporting table, and the top of supporting table is provided with two arc fixed blocks, and arc fixed block is equal
It can be moved in supporting table along horizontal direction, the inside of the arc fixed block is equipped with contiguous block, and two arcs are fixed
Motion bar is additionally provided between the contiguous block of block, and motion bar is connected by screw thread with contiguous block.
Further, some positioning holes are evenly provided with the strut, locating rod is additionally provided with the side wall of support tube, it is fixed
Position bar level be interspersed on support tube, and locating rod be located at in the mutually level positioning hole of locating rod, locating rod can general
Strut is fixed on support tube.
Further, two locating rings are additionally provided with the locating rod, locating ring is connected by screw thread with locating rod, and
And two locating rings are located at the axis both sides of support tube respectively.
Further, the first chute is additionally provided with the top of the supporting table, is provided with the first chute and is matched with the first chute
Two the first sliding blocks, the first sliding block can move in the first chute, and the top of two the first sliding blocks also respectively with
Two arc fixed block connections.
Further, some pads are equipped with the inwall of the arc fixed block.
Further, handle is additionally provided with the end of the motion bar, and handle is located in one of arc fixed block
Outside.
Further, the both sides of the pedestal are also equipped with side, and side is provided with connector, connector by screw thread with
Side connects.
Further, two second chutes are additionally provided with the top of the pedestal, the second chute is located at the axis of pedestal respectively
Both sides, two the second sliding blocks are equipped with second chute, the second sliding block can move in the second chute, and two
Bottom of two the second sliding blocks respectively with two movable plates in second chute is connected, and two movable plates can follow the second sliding block
Move together.
Further, two depression bars are also equipped with the movable plate, two depression bars are located at the outside of two boss respectively,
Depression bar is connected vertically by screw thread with movable plate, rotates depression bar, and movable plate can be fixed on pedestal by depression bar.
The present invention compared with prior art, has the following advantages and advantages：
1st, auto parts of the present invention carry out the clamping device of laser marking, are first consolidated an axle part to be identified
Fixed, then laser marking machine is processed to it, and for laser marking machine when being processed to it, operating personnel can be by under
One axle part for treating mark is fixed, and has saved process time, has improved processing efficiency；
2nd, auto parts of the present invention carry out the clamping device of laser marking, will when carrying out laser marking to axial workpiece
The both ends of axle part are individually positioned on the arc fixed block in two supporting tables, and two arc fixed blocks are adjusted using motion bar
Between spacing so that axle part can be fixed for two arc fixed blocks, at the same suitable for different-diameter axle part
Clamping,
3rd, auto parts of the present invention carry out the clamping device of laser marking, are interspersed on diverse location and determined by locating rod
In the hole of position, the height of supporting table can be adjusted, shorten the spacing between axle part and laser marking machine probe, improved
To the precision of axle part processing；
4th, auto parts of the present invention carry out the clamping device of laser marking, and the spacing between two supporting tables can be by the
One sliding block is adjusted, and meets the use to the axle part of different length.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is the top view of pedestal of the present invention.
Mark and corresponding parts title in accompanying drawing：
1- sides, 2- boss, the sliding blocks of 3- first, 4- connectors, 5- support tubes, 6- cross bars, 7- pedestals, 8- locating rings, 9-
Workpiece, 10- arc fixed blocks, the sliding blocks of 11- first, 12- supporting tables, 13- positioning holes, 14- struts, 15- locating rods, 16- handles,
17- contiguous blocks, 18- motion bars, 19- pads, 20- depression bars, the sliding blocks of 21- second, 22- movable plates, the chutes of 23- second.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As shown in Figure 1 to Figure 3, auto parts of the present invention carry out the clamping device of laser marking, including pedestal 7, the base
The top of seat 7 is provided with two second chutes 23, and the second chute 23 is located at the axis both sides of pedestal 7, second chute respectively
Two the second sliding blocks 21 are equipped with 23, the second sliding block 21 matches with the second chute 23, i.e., the second sliding block 21 can be second
Moved in chute 23, be additionally provided with two movable plates 22 on the top of the pedestal 7, two the second sliding blocks 21 in the second chute 23
The bottom with two movable plates 22 is connected respectively, and two movable plates 22 are parallel to each other, therefore, by the second chute 23
Second sliding block 21, two movable plates 22 can be moved along the direction of the second chute 23 on pedestal 7, also set on the movable plate 22
There are two depression bars 20, two depression bars 20 are located at the axis both sides of movable plate 22 respectively, and depression bar 20 passes through screw thread and movable plate 22
Connection, rotates depression bar 20, and depression bar 20 can be moved to the top of pedestal 7, movable plate 22 is fixed on pedestal 7, avoid moving
Plate 22 moves in processing, and the top of the movable plate 22 is equipped with two boss 2, and two boss 2 are located at movable plate 22 respectively
Axis both sides, and two boss 2 are additionally provided with cross bar 6 between the inner side of two depression bars 20, two boss 2 respectively, horizontal
Madial wall of the both ends of bar 6 respectively with two boss 2 is connected, and the cross bar 6 is provided with two the first sliding blocks 3, two first cunnings
Block 3 is enclosed on cross bar 6, and the first sliding block 3 can move on cross bar 6 along the axis direction of cross bar 6, and described first
The top of sliding block 3 is equipped with support tube 5, and support tube 5 is provided with strut 14, and strut 14 is inserted on support tube 5, and strut 14
It can be moved along the axis direction of support tube 5, some positioning holes 14, the support tube 5 are evenly provided with the strut 14
On be additionally provided with locating rod 15, the level of locating rod 15 is interspersed on support tube 5, and locating rod 15 can be interspersed in and locating rod 15
In mutually level positioning hole 14, strut 14 is fixed on support tube 5, when needing to adjust the height of strut 14, will be positioned
Bar 15 is extracted out from support tube 5, just the height of strut 14 can be adjusted, two locating rings are additionally provided with the locating rod 15
8, locating ring 8 by thread bush in locating rod 15, and two locating rings 8 respectively be located at support tube 5 axis both sides, twist
Locating rod 15 can be fixed on support tube 5 by tight locating ring 8, locating ring 8, and the top of the strut 14 is also equipped with supporting table
12, the top of supporting table 12 is equipped with the first chute, and two the first sliding blocks 11 matched with the first chute are provided with the first chute,
First sliding block 11 can move in the first chute, and the top of two the first sliding blocks 11 is equipped with arc fixed block 10, arc
Fixed block 10 can follow the first sliding block 11 to move together, when two arc fixed blocks 10 contact, two arc fixed blocks
10 can make up the shape that section is semicircle, and the inside of the arc fixed block 10 is equipped with contiguous block 18, and two arcs are fixed
Motion bar 18 is additionally provided between block 10, motion bar 18 is connected by screw thread with the contiguous block 18 in two arc fixed blocks 10,
Handle 16 is additionally provided with the end of the motion bar 18, and handle 16 is located in one of the outside of arc fixed block 10, when
During with being held by 16 rotary moveable bar 18 of handle, motion bar 18 can adjust the spacing between two arc fixed blocks 10, to putting
The workpiece 9 put between two arc fixed blocks 10 is fixed, while meets the clamping to the workpiece 9 of different-diameter, described
Some pads 19 are equipped with the inwall of arc fixed block 10, the effect of pad 19 is increase and the frictional force of workpiece 9, is further carried
The high crystallized ability to workpiece 9；The both sides of the pedestal 7 are additionally provided with side 1, and connector 4, the connection are equipped with side 1
Part 4 is bolt, and connector 4 is connected by screw thread with side 1, and the connector 4 of setting is easy to the work by pedestal 7 and laser marking machine
It is fixed, is prevented during coding as platform, pedestal 7 is subjected to displacement by ectocine.
The present invention according to the length of workpiece 9 to be processed in use, adjust the spacing between two supporting tables 12, then
Between the both ends of workpiece 9 to be processed to be placed to two arc fixed blocks 10 on one of movable plate 22 respectively, handle is held
Hand 16, rotary moveable bar 18, motion bar 18 adjust the spacing between two arc fixed blocks 10, final two arc fixed blocks 10
Workpiece 9 is fixed, unscrews depression bar 20, promotes the movable plate 22 for being placed with workpiece 9, is at the machining area of laser marking machine
Lower section, depression bar 20 is tightened, movable plate 22 is fixed on pedestal 7, further according to the demand of reality, branch is adjusted by locating rod 15
The height of platform 12 is supportted, shortens the distance between the probe of workpiece 9 and laser marking machine, improves the coding precision to workpiece 9,
Laser marking machine is opened, laser marking is carried out to the outer wall of the workpiece 9 on the movable plate 22, laser marking machine is to the movable plate
When workpiece 9 on 22 is processed, next workpiece 9 to be processed is fixed on the arc on another movable plate 22 by operating personnel
On shape fixed block 10, after a upper workpiece 9 processes, next workpiece to be processed 9 on another movable plate 22 is moved
Move to the machining area of mechanism marking machine, next workpiece 9 is processed, so that operating personnel are waiting laser marking
When machine is processed to workpiece 9, next workpiece 9 can be installed and fixed, improve processing efficiency.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (9)
1. auto parts carry out the clamping device of laser marking, it is characterised in that including pedestal (7), the top of the pedestal (7)
Provided with two movable plates (22), movable plate (22) can move on pedestal (7) along horizontal direction, the movable plate (22)
Top be equipped with two boss (2), boss (2) is located at the axis both sides of movable plate (22) respectively, is set between two boss (2)
There is a cross bar (6), the madial wall of the both ends of cross bar (6) respectively with two boss (2) is connected, and the cross bar (6) is provided with two first
Sliding block (3), the first sliding block (3) are enclosed on cross bar (6), and the first sliding block (3) can be along the axis direction of cross bar (6)
It is mobile, support tube (5) is equipped with the top of first sliding block (3), strut (14), strut (14) energy are provided with support tube (5)
Enough axis directions along support tube (5) move, and the top of strut (14) is provided with supporting table (12), and supporting table is set at the top of (12)
There are two arc fixed blocks (10), arc fixed block (10) can move in supporting table (12) along horizontal direction, described
The inside of arc fixed block (10) is equipped with contiguous block (17), is additionally provided between the contiguous block (17) of two arc fixed blocks (10)
Motion bar (18), and motion bar (18) is connected by screw thread with contiguous block (17).
2. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the strut
(14) some positioning holes (13) are evenly provided with, locating rod (15), locating rod (15) water are additionally provided with the side wall of support tube (5)
It is flat to be interspersed on support tube (5), and locating rod (15) is located at in locating rod (15) mutually level positioning hole (13), positioning
Strut (14) can be fixed on support tube (5) by bar (15).
3. auto parts according to claim 2 carry out the clamping device of laser marking, it is characterised in that the locating rod
(15) two locating rings (8) are additionally provided with, locating ring (8) is connected by screw thread with locating rod (15), and two locating rings
(8) it is located at the axis both sides of support tube (5) respectively.
4. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the supporting table
(12) it is additionally provided with the first chute at the top of, is provided with two the first sliding blocks (11) matched with the first chute in the first chute, first
Sliding block (11) can be moved in the first chute, and the top of two the first sliding blocks (11) is also fixed with two arcs respectively
Block (10) connects.
5. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the arc is consolidated
Determine to be equipped with some pads (19) on the inwall of block (10).
6. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the motion bar
(18) handle (16) is additionally provided with end, and handle (16) is located in one of the outside of arc fixed block (10).
7. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the pedestal
(7) both sides are also equipped with side (1), and side (1) is provided with connector (4), and connector (4) is connected by screw thread and side (1)
Connect.
8. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the pedestal
(7) it is additionally provided with two the second chutes (23) at the top of, the second chute (23) is located at the axis both sides of pedestal (7) respectively, and described the
Two the second sliding blocks (21) are equipped with two chutes (23), the second sliding block (21) can move in the second chute (23), and
And bottom of two the second sliding blocks (21) respectively with two movable plates (22) in two the second chutes (23) is connected, two movements
Plate (22) can follow the second sliding block (21) to move together.
9. auto parts according to claim 1 carry out the clamping device of laser marking, it is characterised in that the movable plate
(22) two depression bars (20) are also equipped with, two depression bars (20) are logical positioned at the outside of two boss (2), depression bar (20) respectively
Cross screw thread to be connected vertically with movable plate (22), movable plate (22) can be fixed on pedestal (7) by rotation depression bar (20), depression bar (20)
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023771.2A CN107790901A (en) | 2017-10-27 | 2017-10-27 | Auto parts carry out the clamping device of laser marking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023771.2A CN107790901A (en) | 2017-10-27 | 2017-10-27 | Auto parts carry out the clamping device of laser marking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107790901A true CN107790901A (en) | 2018-03-13 |
Family
ID=61548342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023771.2A Pending CN107790901A (en) | 2017-10-27 | 2017-10-27 | Auto parts carry out the clamping device of laser marking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107790901A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773159A (en) * | 2018-05-29 | 2018-11-09 | 海宁酷彩数码科技有限公司 | A kind of PLATE SCREAM PRINTING flower position positioning device |
| CN108817801A (en) * | 2018-07-10 | 2018-11-16 | 山东昌隆机械制造股份有限公司 | Auxiliary device is used in a kind of welding of bucket otic placode |
| CN109176181A (en) * | 2018-10-11 | 2019-01-11 | 湖州费莲青湖笔有限公司 | A kind of writing brush penholder polishing structure and its application method |
| CN110773876A (en) * | 2019-12-15 | 2020-02-11 | 湛江市汉成科技有限公司 | Positioning device for laser marking of composite insulator joint |
| CN111252167A (en) * | 2018-11-30 | 2020-06-09 | 东风延锋盐城汽车饰件***有限公司 | Auxiliary positioning structure |
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| CN200984866Y (en) * | 2006-11-07 | 2007-12-05 | 深圳市邦凯电子有限公司 | Laser mark printing machine rotary clamp |
| CN205149231U (en) * | 2015-10-29 | 2016-04-13 | 大族激光科技产业集团股份有限公司 | A anchor clamps and marking device for axle type part |
| CN205414706U (en) * | 2016-03-02 | 2016-08-03 | 台州市程光激光设备有限公司 | Laser marking machine |
| CN105921891A (en) * | 2016-06-07 | 2016-09-07 | 济南大学 | Tube supporting clamps |
| CN206356744U (en) * | 2016-11-30 | 2017-07-28 | 湖州佳创自动化科技有限公司 | A kind of pipe lift cutting clamper |
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| CN200984866Y (en) * | 2006-11-07 | 2007-12-05 | 深圳市邦凯电子有限公司 | Laser mark printing machine rotary clamp |
| CN205149231U (en) * | 2015-10-29 | 2016-04-13 | 大族激光科技产业集团股份有限公司 | A anchor clamps and marking device for axle type part |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108773159A (en) * | 2018-05-29 | 2018-11-09 | 海宁酷彩数码科技有限公司 | A kind of PLATE SCREAM PRINTING flower position positioning device |
| CN108817801A (en) * | 2018-07-10 | 2018-11-16 | 山东昌隆机械制造股份有限公司 | Auxiliary device is used in a kind of welding of bucket otic placode |
| CN109176181A (en) * | 2018-10-11 | 2019-01-11 | 湖州费莲青湖笔有限公司 | A kind of writing brush penholder polishing structure and its application method |
| CN111252167A (en) * | 2018-11-30 | 2020-06-09 | 东风延锋盐城汽车饰件***有限公司 | Auxiliary positioning structure |
| CN110773876A (en) * | 2019-12-15 | 2020-02-11 | 湛江市汉成科技有限公司 | Positioning device for laser marking of composite insulator joint |
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Application publication date: 20180313 |