CN108772610B - Wire extrusion positioning locking mechanism for metal piece - Google Patents
Wire extrusion positioning locking mechanism for metal piece Download PDFInfo
- Publication number
- CN108772610B CN108772610B CN201810789928.0A CN201810789928A CN108772610B CN 108772610 B CN108772610 B CN 108772610B CN 201810789928 A CN201810789928 A CN 201810789928A CN 108772610 B CN108772610 B CN 108772610B
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- block
- station
- positioning
- bearing roller
- sliding
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- 230000007246 mechanism Effects 0.000 title claims abstract description 65
- 238000001125 extrusion Methods 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 38
- 238000003825 pressing Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A wire extrusion positioning locking mechanism for metal parts comprises a sliding push-pull mechanism and a sliding connection mechanism. The sliding push-pull mechanism comprises a base, a station sliding block is arranged on the base, and a bidirectional bearing roller piece is arranged on the base at the corresponding position of the two sides of the station sliding block; the bidirectional bearing roller piece is provided with a rolling bearing, the side surface of the bidirectional bearing roller piece is contacted with a station sliding block, and one end of the station sliding block is connected with the other end of the air cylinder; the sliding connection mechanism is driven by the air cylinder to buckle the upper pressing material block on the lower pressing material block at the corresponding position. The invention provides the accessory wire extrusion positioning locking mechanism which is convenient to use, stable in operation and high in processing efficiency through the structure.
Description
Technical Field
The invention relates to a wire extrusion positioning locking mechanism for a metal part, and belongs to the field of automobile seat processing.
Background
The sheet metal framework is an important embedded part arranged in a main seat and a co-driver seat of the car seat, a sheet metal part and a side plate in the safety airbag connecting mechanism, and most holes are punched holes which are then machined, so that the screw thread rigidity strength is ensured by adopting extrusion processing; mainly ensures the thread and the screw tap.
At present, sheet metal part tapping clamp of automobile seat backrest framework has low structural precision and no upper pressing mechanism, and the result of the tapping clamp cannot meet the requirement of huge suspension torque force in the first wire extrusion process. The multiple sheet metal parts are clamped for multiple times, so that the deformation of the workpiece is large, the waste products are large, the critical dimension cannot be ensured, the processing time is high, and the manufacturing cost is high. The non-pressing mechanism is provided with a simple positioning block and a pin, the upper pressing and the lower positioning block are not matched for clamping and positioning, the single-sequence processing is carried out, and the guiding mechanism is not provided for controlling the upper synchronous working procedure and the lower synchronous working procedure for positioning the workpiece; the positioning state is unstable. And are of an overall up-down structure. The sliding mechanism is accurately controlled in the movement process without the lateral inverted sliding plate, so that the connection between the metal plates after wire extrusion is distorted, the connection is unstable, the parts fall off, the safety is poor, and the fit of large clearance fit surfaces is poor; because repeated guessing and unloading of the threads can influence the confusion of the threads, the products are scrapped, and the manufacturing cost is increased; the sliding mechanisms are controlled by double guide post cylinders and have double guide rail movements, the double guide rail mechanisms also move back and forth between the rollers at two sides (bearings are inlaid at two ends of the connecting roller), and double fixing plates are arranged at the side surfaces of the double guide rail mechanisms to influence the assembly size of the workpiece; the number of defective products is large. All positioning and clamping mechanisms are single non-adjustable clamps, and the waste products are many; the cost is high. The quality and the connection strength of the welding workpieces are affected, the appearance is irregular after combination connection, and the production efficiency is low.
Disclosure of Invention
Aiming at the problems, the invention provides a metal part wire extrusion positioning locking mechanism which comprises a sliding push-pull mechanism and a sliding connecting mechanism, wherein a graphite guide and sliding mechanism is arranged on the side surface contacted with a roller, and a pressing clamping mechanism is matched with a positioning block and is well adjusted according to the shape of a workpiece before processing; the synchronization is not offset, the stability is good, and the assembly is convenient. According to the workpiece matching state, a vertical clamping positioning mode and a lateral double-guide-pillar guiding clamping positioning mode are set, and the technical problems of low production efficiency and poor cost and quality in the prior art are solved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a metalwork crowded silk location locking mechanism which characterized in that: comprises a sliding push-pull mechanism and a sliding connecting mechanism;
The sliding push-pull mechanism comprises a base, a station sliding block is arranged on the base, and a bidirectional bearing roller piece is arranged on the base at the corresponding position of the two sides of the station sliding block; the side surface of the bidirectional bearing roller is contacted with the station slide block, and the bidirectional bearing roller rotates in situ through an externally installed rolling bearing; one end of the station sliding block is connected with an air cylinder, is driven by the air cylinder, and realizes smooth movement while positioning through two-way bearing roller pieces on two sides;
one end of a cantilever beam of the sliding connection mechanism is connected with the station slide block through a vertically arranged screw rod transmission shaft, and the other end of the cantilever beam is connected with the bracket; the upper pressing block is arranged at the lower part of the bracket through a connecting rod;
The cylinder drives the station slide block to drive the bracket to move to a specified position, the screw rod transmission shaft is adjusted downwards to enable the sliding connection mechanism to wholly descend, and the upper pressing material block is buckled on the lower pressing material block at the corresponding position.
The base is provided with a roller fixing bracket through screws, and the roller fixing bracket is in a two-layer ladder shape; the positioning shaft and the bidirectional bearing roller piece are arranged between the upper plate of the roller fixing support and the base.
The positioning shaft and the bidirectional bearing roller piece are covered with an axial fixing plate, and the upper plate of the roller fixing support is pressed on the axial fixing plate.
The base is provided with a fixing plate; the positioning shaft is arranged in the mounting hole of the fixed plate, and the bidirectional bearing roller is arranged in the sliding guide rail of the fixed plate; the fixed plate is pressed between the lower plate of the roller fixing support and the base and is connected and fixed through screws.
The machine is characterized in that N bidirectional bearing roller pieces are uniformly distributed on bases on two sides of the station sliding block, and graphite sliding blocks are inlaid at the positions where the station sliding block is connected with the side surfaces of the bidirectional bearing roller pieces.
The lower part of the screw rod transmission shaft penetrates through the station slide block and the base and then is connected with the power mechanism; a screw connecting sleeve is arranged at the penetrating part of the corresponding screw transmission shaft on the base; and a connecting sleeve piece is arranged at the penetrating position of the corresponding screw rod transmission shaft on the station slide block.
The bracket is a triangular bracket, three support arms of the triangular bracket are uniformly distributed on a plane, the extending end of one support arm is connected with an upper pressing block, the ends of the other two support arms are respectively connected with a cantilever beam arm through a flange shaft sleeve, the other ends of the two cantilever beams are connected with a station sliding block through a screw transmission shaft, and the installation positions of the two screw transmission shafts on the station sliding block are mutually symmetrical.
The center position of the triangular bracket is provided with a mounting hole, a plurality of cantilever beams can be additionally arranged through the mounting hole, every two cantilever beams correspond to one station sliding block, and therefore one-time multi-hole machining is achieved through the plurality of station sliding blocks.
The bottom surface of the base is provided with a cushion block, and the screw rod transmission shaft penetrates through the cushion block.
The method for processing the metal part wire extrusion positioning locking mechanism comprises the following steps:
1) The bidirectional bearing roller piece and the positioning shaft are arranged on the fixed plate, and after the axial positioning plate is covered, the bidirectional bearing roller piece and the positioning shaft are pressed and positioned through the roller fixing bracket;
2) The station sliding blocks with the side faces inlaid with the graphite sliding blocks are placed between the two-way bearing roller pieces 10 on the two sides, one end of each station sliding block is connected with a cylinder, the other end of each station sliding block is connected with a cantilever beam of the sliding connection mechanism through a lead screw transmission shaft, at the moment, the lead screw transmission shaft is in a lifting state, and the height distance between the bottom surface of an upper pressing material block and the top surface of a lower pressing material block is more than or equal to 20mm;
3) The station sliding block is pushed by the air cylinder, so that the upper pressing block of the sliding connection mechanism is driven to move right above the lower pressing block, and after the upper pressing block moves to a corresponding position, the screw rod transmission shaft is controlled to descend by the PLC, so that the upper pressing block is buckled and pressed on the lower pressing block.
The beneficial effects of the invention are as follows: the invention provides a metal part wire extrusion positioning locking mechanism, which adopts a mechanism for transmission connection and positioning, the clamp clamping mechanisms are all vertical clamps, the structure is reasonable and simple, the stability of a strict running environment is strong, the positioning is accurate, and the positioning mechanism is adjustable no matter in the manufacturing process of the clamp or after the workpiece is processed. The screw extruding (tapping) speed is high, the production efficiency is high, and the screw quality is good. The operation is simple and convenient, the labor intensity of workers is reduced, and the production efficiency is improved. The work that can be accomplished by the mechanic now only need the operator put the work piece just, reduces the finished product and saves man-hour. Meanwhile, the quality requirement is met, the use is convenient and safe, and the product quality is improved.
Drawings
Fig. 1 is a top view of the inventive structure.
Fig. 2 is a side cross-sectional view of fig. 1.
Fig. 3 is a schematic diagram of the connection relationship between the screw drive shaft and the station slide in fig. 1.
Detailed Description
A metal piece crowded silk location locking mechanism, the structure is: comprises a sliding push-pull mechanism and a sliding connecting mechanism.
The sliding push-pull mechanism comprises a base 14, a station sliding block 15 is arranged on the base 14, and a bidirectional bearing roller 10 is arranged on the base 14 at the corresponding position of two sides of the station sliding block 15; the side surface of the bidirectional bearing roller 10 is contacted with the station slide block 15, the outer sides of the upper part and the lower part of the bidirectional bearing roller 10 are respectively provided with a rolling bearing 11, and the bidirectional bearing roller is rotated in situ through the rolling bearings 11 arranged outside; one end of the station slide block 15 is connected with an air cylinder 22, is driven by the air cylinder 22, and realizes smooth movement while positioning through the two-side bidirectional bearing roller 10.
The base 14 is provided with a roller fixing bracket 8 through a screw 6, and the roller fixing bracket 8 is in a two-layer ladder shape; the positioning shaft 9 and the bi-directional bearing roller 10 are installed between the upper plate of the roller fixing bracket 8 and the base 14. Specific: the base 14 is provided with a fixed plate 7; the positioning shaft 9 is arranged in the mounting hole of the fixed plate 7, and the bidirectional bearing roller 10 is arranged in the sliding guide rail 18 of the fixed plate 7; the fixing plate 7 is pressed between the lower plate of the roller fixing support 8 and the base 14 and is fixedly connected through the screw 6. The positioning shaft 9 and the bidirectional bearing roller 10 are covered with an axial fixing plate 12, and the upper plate of the roller fixing bracket 8 is pressed on the axial fixing plate 12.
N bidirectional bearing roller pieces 10 are uniformly distributed on the bases 14 on two sides of the station sliding block 15. Each two bidirectional bearing roller pieces 10 correspond to one positioning shaft 9, the positioning shafts 9 are arranged at the middle positions outside the two bidirectional bearing roller pieces 10, the mutual connecting lines form isosceles triangles, and the axial fixing plates 12 fix the two bidirectional bearing roller pieces 10 and one positioning shaft 9 into a group. The position where the station slide block 15 is connected with the side surface of the bidirectional bearing roller 10 is inlaid with a graphite slide block 19. The rolling bearing 11 realizes smooth movement while limiting the whole mechanism through the graphite slide block 19, the bidirectional bearing roller 10 and the sliding guide rail 18.
One end of a cantilever beam 5 of the sliding connection mechanism is connected with a station slide block 15 through a vertically arranged screw rod transmission shaft 20, and the other end of the cantilever beam is connected with a bracket 24; the screw rod transmission shaft 20 sequentially passes through the cantilever beam 5, the station slide block 15 and the base 14 and then is connected with the power mechanism; a lead screw connecting sleeve 17 is arranged on the base 14 at the penetrating position of the corresponding lead screw transmission shaft 20; and a connecting sleeve 16 is arranged on the station slide block 15 at the penetrating position of the corresponding screw transmission shaft 20. The bracket 24 is a triangular bracket, three support arms of the triangular bracket are uniformly distributed on a plane, the extending end of one support arm is connected with the upper pressing block 3, the ends of the other two support arms are respectively connected with the cantilever beam arms 5 through the flange shaft sleeves 25, the other ends of the two cantilever beams 5 are connected with the station slide block 15 through the screw rod transmission shafts 20, and the installation positions of the two screw rod transmission shafts 20 on the station slide block 15 are mutually symmetrical. The upper presser 3 is mounted on the lower part of the bracket 24 by a connecting rod 1.
The method for processing the metal part wire extrusion positioning locking mechanism comprises the following steps:
1) The bidirectional bearing roller 10 and the positioning shaft 9 are arranged on the fixed plate 7, and after the axial positioning plate 12 is covered, the bidirectional bearing roller is pressed and positioned through the roller fixing bracket 8.
2) The station slide block 15 with the graphite slide block 19 inlaid on the side surface is placed between the two-way bearing roller pieces 10 on the two sides, one end of the station slide block is connected with the air cylinder 22, the other end of the station slide block is connected with the cantilever beam 5 of the sliding connection mechanism through the screw rod transmission shaft 20, the screw rod transmission shaft 20 is in a lifting state, and the height distance between the bottom surface of the upper pressing material block 3 and the top surface of the lower pressing material block 2 is more than or equal to 20mm.
3) The station slide block 15 is pushed by the air cylinder 22, so that the upper pressing block 3 of the sliding connection mechanism is driven to move right above the lower pressing block 2, and after the upper pressing block 3 moves to the corresponding position, the screw transmission shaft 20 is controlled to descend by the PLC, the upper pressing block 3 is buckled and pressed on the lower pressing block 2, and the pressing block 2 is processed into a target shape.
4) After positioning, the subsequent processing is completed, and finally the whole device returns to the starting position.
Preferably: the center position of the triangular bracket is provided with a mounting hole, a plurality of cantilever beams 5 can be additionally arranged through the mounting hole, every two cantilever beams 5 correspond to one station slide block 15, and therefore the plurality of station slide blocks 15 realize one-time multi-hole processing. The bottom surface of the base is provided with a cushion block 4, and a screw transmission shaft 20 penetrates through the cushion block 4. The station slide 15 is externally covered with a dust cover 21.
Claims (10)
1. The utility model provides a metalwork crowded silk location locking mechanism which characterized in that: comprises a sliding push-pull mechanism and a sliding connecting mechanism;
the sliding push-pull mechanism comprises a base (14), a station sliding block (15) is arranged on the base (14), and a bidirectional bearing roller (10) is arranged on the base (14) at the corresponding positions of the two sides of the station sliding block (15); the side surface of the bidirectional bearing roller (10) is contacted with the station sliding block (15), and the bidirectional bearing roller (10) rotates in situ through an externally mounted rolling bearing (11); one end of the station sliding block (15) is connected with an air cylinder (22), is driven by the air cylinder (22), and realizes smooth movement while positioning through two-way bearing roller pieces (10) on two sides;
One end of a cantilever beam (5) of the sliding connection mechanism is connected with a station slide block (15) through a vertically arranged screw rod transmission shaft (20), and the other end of the cantilever beam is connected with a bracket (24); the upper pressing block (3) is arranged at the lower part of the bracket (24) through the connecting rod (1);
The cylinder (22) drives the station slide block (15) to drive the bracket (24) to move to a specified position, the screw transmission shaft (20) is adjusted downwards to enable the sliding connection mechanism to wholly descend, and the upper pressing material block (3) is buckled on the lower pressing material block (2) at the corresponding position.
2. A wire extrusion positioning and locking mechanism as set forth in claim 1, wherein: the base (14) is provided with a roller fixing bracket (8) through a screw (6), and the roller fixing bracket (8) is provided with two layers of steps; the positioning shaft (9) and the bidirectional bearing roller (10) are arranged between the upper plate of the roller fixing bracket (8) and the base (14).
3. A wire extrusion positioning and locking mechanism as set forth in claim 2 wherein: the positioning shaft (9) and the bidirectional bearing roller (10) are covered with an axial positioning plate (12), and the upper plate of the roller fixing support (8) is pressed on the axial positioning plate (12).
4. A wire extrusion positioning and locking mechanism as set forth in claim 2 wherein: the base (14) is provided with a fixed plate (7); the positioning shaft (9) is arranged in the mounting hole of the fixed plate (7), and the bidirectional bearing roller (10) is arranged in the sliding guide rail (18) of the fixed plate (7); the fixing plate (7) is pressed between the lower plate of the roller fixing support (8) and the base (14) and is connected and fixed through the screw (6).
5. A wire extrusion positioning and locking mechanism as set forth in claim 1, wherein: the bracket (24) is a triangular bracket, three support arms of the triangular bracket are uniformly distributed on a plane, the extending end of one support arm is connected with the upper pressing block (3), the ends of the other two support arms are respectively connected with the cantilever beams (5) through the flange shaft sleeves (25), the other ends of the two cantilever beams (5) are connected with the station slide block (15) through the screw rod transmission shafts (20), and the installation positions of the two screw rod transmission shafts (20) on the station slide block (15) are mutually symmetrical.
6. The wire extrusion positioning and locking mechanism of claim 5, wherein: the center position of the triangular bracket is provided with a mounting hole, a plurality of cantilever beams (5) can be additionally arranged through the mounting hole, each two cantilever beams (5) corresponds to one station sliding block (15), and therefore a plurality of station sliding blocks (15) realize disposable porous processing.
7. A wire extrusion positioning and locking mechanism as set forth in claim 1, wherein: n bidirectional bearing roller pieces (10) are uniformly distributed on bases (14) on two sides of the station sliding block (15), the station sliding block (15) is contacted with the side surfaces of the bidirectional bearing roller pieces (10), and graphite sliding blocks (19) are inlaid in the station sliding block.
8. A wire extrusion positioning and locking mechanism as set forth in claim 1, wherein: the lower part of the screw rod transmission shaft (20) passes through the station slide block (15) and the base (14) and then is connected with the power mechanism; a screw connecting sleeve (17) is arranged at the penetrating part of the corresponding screw transmission shaft (20) on the base (14); and a connecting sleeve (16) is arranged at the penetrating part of the corresponding screw transmission shaft (20) on the station slide block (15).
9. A wire extrusion positioning and locking mechanism as set forth in claim 1, wherein: the bottom surface of the base is provided with a cushion block (4), and a screw rod transmission shaft (20) penetrates through the cushion block (4).
10. A method of machining using a metal part wire extrusion positioning locking mechanism as claimed in any one of claims 1 to 9, comprising the steps of:
1) The bidirectional bearing roller (10) and the positioning shaft (9) are arranged on the fixed plate (7), and after the axial positioning plate (12) is covered, the bidirectional bearing roller is pressed and positioned through the roller fixing bracket (8);
2) A station sliding block (15) with a graphite sliding block (19) embedded on the side surface is placed between two-way bearing roller pieces (10) on two sides, one end of the station sliding block is connected with an air cylinder (22), the other end of the station sliding block is connected with a cantilever beam (5) of a sliding connection mechanism through a screw rod transmission shaft (20), at the moment, the screw rod transmission shaft (20) is in a lifting state, and the height distance between the bottom surface of an upper pressing material block (3) and the top surface of a lower pressing material block (2) is more than or equal to 20mm;
3) The station slide block (15) is pushed by the air cylinder (22), so that the upper pressing material block (3) of the sliding connection mechanism is driven to move right above the lower pressing material block (2), and after the upper pressing material block (3) moves to a corresponding position, the screw transmission shaft (20) is controlled to descend by the PLC, so that the upper pressing material block (3) is buckled on the lower pressing material block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789928.0A CN108772610B (en) | 2018-07-18 | 2018-07-18 | Wire extrusion positioning locking mechanism for metal piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810789928.0A CN108772610B (en) | 2018-07-18 | 2018-07-18 | Wire extrusion positioning locking mechanism for metal piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108772610A CN108772610A (en) | 2018-11-09 |
| CN108772610B true CN108772610B (en) | 2024-05-03 |
Family
ID=64029997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810789928.0A Active CN108772610B (en) | 2018-07-18 | 2018-07-18 | Wire extrusion positioning locking mechanism for metal piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108772610B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4417306C1 (en) * | 1994-05-18 | 1995-12-07 | Schweiz Unfallversicherung | Working fixture for milling machine handling wooden workpieces |
| EP2345507A2 (en) * | 2010-01-14 | 2011-07-20 | Prüß, Ludwig | Device for clamping workpieces on a base |
| CN203141144U (en) * | 2013-04-12 | 2013-08-21 | 南车戚墅堰机车有限公司 | Fast compressing device |
| CN206405775U (en) * | 2016-12-09 | 2017-08-15 | 天津聚居科技有限公司 | A kind of workpiece fixed clamping device |
| CN208467441U (en) * | 2018-07-18 | 2019-02-05 | 沈阳奇隆汽车零部件制造有限责任公司 | A kind of metalwork wire squeeze positioning lockable mechanism |
-
2018
- 2018-07-18 CN CN201810789928.0A patent/CN108772610B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4417306C1 (en) * | 1994-05-18 | 1995-12-07 | Schweiz Unfallversicherung | Working fixture for milling machine handling wooden workpieces |
| EP2345507A2 (en) * | 2010-01-14 | 2011-07-20 | Prüß, Ludwig | Device for clamping workpieces on a base |
| CN203141144U (en) * | 2013-04-12 | 2013-08-21 | 南车戚墅堰机车有限公司 | Fast compressing device |
| CN206405775U (en) * | 2016-12-09 | 2017-08-15 | 天津聚居科技有限公司 | A kind of workpiece fixed clamping device |
| CN208467441U (en) * | 2018-07-18 | 2019-02-05 | 沈阳奇隆汽车零部件制造有限责任公司 | A kind of metalwork wire squeeze positioning lockable mechanism |
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| Publication number | Publication date |
|---|---|
| CN108772610A (en) | 2018-11-09 |
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