CN111817106B - Bending device and bending method - Google Patents
Bending device and bending method Download PDFInfo
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- CN111817106B CN111817106B CN202010497467.7A CN202010497467A CN111817106B CN 111817106 B CN111817106 B CN 111817106B CN 202010497467 A CN202010497467 A CN 202010497467A CN 111817106 B CN111817106 B CN 111817106B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
Abstract
A bending device is used for bending workpieces and comprises a processing table; the first bending mechanism comprises a rotating mechanism moving back and forth along a first direction, a rotating head arranged at one end of the advancing direction of the rotating mechanism and a first clamping mechanism arranged on the rotating head; the second bending mechanism comprises a second clamping mechanism corresponding to the first clamping mechanism and a shifting mechanism for driving the second clamping mechanism to move; the second clamping mechanism comprises a first clamping part and a second clamping part, and when the shifting mechanism drives the first clamping part of the second clamping mechanism to correspond to the first clamping mechanism, the first clamping mechanism clamps a first part of the workpiece positioned in the first clamping part to complete first bending; when the shifting mechanism drives the second clamping part of the second clamping mechanism to correspond to the first clamping mechanism, the first clamping mechanism clamps a second part of the same workpiece positioned in the second clamping part to complete second bending. This application has realized bending in succession of work piece, has effectively reduced manufacturing procedure. The application also discloses a bending method.
Description
Technical Field
The application relates to the technical field of workpiece machining, in particular to a bending device and a bending method.
Background
Electronic products have been integrated into all corners of people's life, and not only are mobile phones and computers commonly used by people, but also televisions and game machines for people to enjoy and watch in common, and some advanced devices required by people for study and experiment belong to the electronic products, so that the electronic products bring great convenience to our life and work.
The connector is indispensable spare part among the electronic product, in the production process of connector, needs to be often used a plurality of tools or stations to accomplish bending of PIN needle multi-angle, and traditional equipment structure of bending is complicated, the process of bending is loaded down with trivial details, and difficult control angle of bending to can not be general.
Disclosure of Invention
In view of the above, it is desirable to provide a bending apparatus and a bending method to solve the above technical problems.
In order to solve the technical problem, the application provides a bending device for bending a workpiece, the bending device includes:
a processing table;
the first bending mechanism is arranged on the processing table and comprises a rotating mechanism moving back and forth along a first direction, a rotating head arranged at one end of the advancing direction of the rotating mechanism and a first clamping mechanism arranged on the rotating head;
the second bending mechanism is butted with the processing table and comprises a second clamping mechanism corresponding to the first clamping mechanism and a shifting mechanism driving the second clamping mechanism to move; the second clamping mechanism comprises a first clamping part and a second clamping part, and when the shifting mechanism drives the first clamping part of the second clamping mechanism to correspond to the first clamping mechanism, the first clamping mechanism clamps a first part of the workpiece positioned in the first clamping part to complete first bending; when the shifting mechanism drives the second clamping part of the second clamping mechanism to correspond to the first clamping mechanism, the first clamping mechanism clamps a second part of the same workpiece positioned in the second clamping part to complete second bending.
Preferably, the second clamping mechanism further comprises a third clamping portion, the first clamping portion is arranged between the second clamping portion and the third clamping portion, the first bending mechanism further comprises a position correction mechanism parallel to the rotating mechanism, the position correction mechanism comprises a correction clamping mechanism moving along the first direction in the same direction as the first clamping mechanism, and the correction clamping mechanism is used for clamping and correcting a workpiece located in the third clamping portion and placing the workpiece into the second clamping portion through the shifting mechanism.
Preferably, after the first bending and before the second bending, the shifting mechanism drives the second clamping mechanism to move, and the first clamping mechanism puts the workpiece bent for the first time into the second clamping part.
Preferably, the first clamping mechanism comprises a first clamping block, a second clamping block and a third clamping block, which can move inwards or outwards simultaneously in the same circle range for clamping and releasing the workpiece.
Preferably, the top surface of processing platform is equipped with first guide rail and the second guide rail that sets up along first direction, be equipped with first sliding block and second sliding block on first guide rail and the second guide rail respectively, the top of first sliding block and second sliding block is equipped with first supporting block, first bending mechanism sets up on first supporting block.
Preferably, the shift mechanism includes a barrier abutting against the processing table, a first moving frame movable up and down in a second direction on the barrier, and a second moving frame movable left and right in a third direction in the first moving frame.
Preferably, a third guide rail and a fourth guide rail are respectively arranged on two side walls of the baffle plate along the second direction on the surface far away from the processing table, and the first moving frame is arranged on the third guide rail and the fourth guide rail; the first movable frame is provided with a fifth guide rail and a sixth guide rail along two side walls in the third direction respectively, and the second movable frame is arranged on the fifth guide rail and the sixth guide rail.
Preferably, the shifting mechanism further comprises a first driving device arranged inside the processing table, a rotating wheel arranged on the baffle plate and connected with the first driving device through the baffle plate, and a rotating plate arranged on the rotating wheel.
Preferably, the second bending mechanism further comprises a second supporting block arranged on the first movable frame and the second movable frame, the second clamping mechanism is arranged on the second supporting block, the second clamping mechanism comprises a fourth clamping block and a fifth clamping block, a micro-motion device is further arranged between the second supporting block and the fourth clamping block, and the micro-motion device drives the fourth clamping block to move relative to the fifth clamping block so as to clamp and loosen the workpiece.
Preferably, the bending device further comprises a bending table in butt joint with the second bending mechanism, and the bending table is provided with a bending knife corresponding to the first clamping mechanism.
In order to solve the technical problem, the application further provides a bending method based on the bending device, and the bending method comprises the following steps:
providing a workpiece to be bent, determining the bending times, and presetting the bending data of the workpiece during each bending;
placing a workpiece to be bent into a first clamping part, wherein the rotating mechanism moves towards a bending knife along a first direction, the first clamping mechanism moves to a first part of the workpiece to be bent, and the first clamping mechanism clamps the first part of the workpiece to be bent;
the rotating mechanism continues to move towards the bending knife along a first direction, and the first clamping mechanism clamps the workpiece to be bent and completes the first bending with the bending knife through preset bending data;
the rotating mechanism moves towards the direction far away from the bending knife along the first direction, and puts the workpiece which is bent for the first time into the second clamping part, the rotating mechanism adjusts the distance between the rotating mechanism and the workpiece, and the second part of the workpiece is clamped by the first clamping mechanism;
the rotating mechanism moves towards the bending knife along a first direction, and the first clamping mechanism clamps the workpiece to complete second bending with the bending knife through preset bending data.
According to the bending device and the bending method, the first clamping mechanism and the second clamping mechanism are movably matched, so that the workpieces are continuously bent, machining procedures are reduced, and the production cost is effectively reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.
FIG. 1 is a perspective view of a bending apparatus according to the present application;
FIG. 2 is a schematic perspective view of the bending apparatus of the present application with the cover removed;
FIG. 3 is a perspective view of the first bending mechanism of FIG. 2 mounted to the first support block;
FIG. 4 is a perspective view of a second bending mechanism of the present application;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a perspective view of another angle of the second bending mechanism of the present application;
fig. 7 is a flowchart of the bending method of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings.
Referring to fig. 1 to 6, the present application provides a bending apparatus 100 for bending a workpiece, wherein the bending apparatus 100 includes a processing table 20, a first bending mechanism 30, a second bending mechanism 40, a bending table 50, and a cover 60 covering the processing table 20, the first bending mechanism 30, the second bending mechanism 40, and the bending table 50.
Specifically, the processing table 20 is a square cabinet, and includes a top plate 21 forming an accommodation space, a bottom plate 22 opposite to the top plate 21, two side plates 23 connecting the top plate 21 and the bottom plate 22, and a rear cover 24 connecting the top plate 21, the bottom plate 22 and the side plates 23. Be equipped with on the roof 21 of processing platform 20 along first direction setting first guide rail 211 and second guide rail 212, be equipped with first sliding block (not marking) and second sliding block 214 on first guide rail 211 and the second guide rail 212 respectively, the top of first sliding block and second sliding block 214 is equipped with first supporting block 215, first bending mechanism 30 sets up on first supporting block 215. In addition, the top plate 21 of the processing table 20 is provided with a workpiece groove 216 in a concave manner, the workpiece groove 216 extends through one of the side plates 23 to form a workpiece opening 217 protruding out of the side plate 23, and a box can be placed below the workpiece opening 217 for receiving the bent workpiece.
Furthermore, a plurality of electronic components, including electronic keys, an electronic display screen, etc., are disposed on the two side plates 23 of the processing table 20, so as to cooperate with the normal use of the bending apparatus 100.
Specifically, the first bending mechanism 30 is mounted on the processing table 20, and includes a rotating mechanism 31 that moves back and forth in a first direction, which is a direction in which the rotating mechanism 31 moves toward the second bending mechanism 40, a rotating head 32 provided at one end in the forward direction of the rotating mechanism 31, a first clamping mechanism 33 provided on the rotating head 31, and a position correcting mechanism 34 that is juxtaposed to the rotating mechanism 31.
Further, the first clamping mechanism 33 includes a first clamping block 331, a second clamping block 332 and a third clamping block 333, and the clamping blocks 331, 332 and 333 can simultaneously move inwards or outwards in a same circle range for clamping and releasing the workpiece; the position correcting mechanism 34 includes a correcting clamping mechanism 341 which moves synchronously with the first clamping mechanism 33 along the first direction, and the correcting clamping mechanism 341 is used for clamping and correcting the workpiece to be bent.
Specifically, the second bending mechanism 40 is abutted to the processing table 20, and includes a second clamping mechanism 41 corresponding to the first clamping mechanism 33 and a shifting mechanism 42 driving the second clamping mechanism 41 to move.
Further, the second clamping mechanism 41 includes a fourth clamping block 411 and a fifth clamping block 412, the fourth clamping block 411 and the fifth clamping block 412 are combined with each other to form a first clamping portion 413, a second clamping portion 414 and a third clamping portion 415, the first clamping portion 413 is disposed between the second clamping portion 414 and the third clamping portion 415, and the second clamping portion 412 is disposed on a side close to the rotating mechanism 31 with respect to the position correcting mechanism 34.
Further, the shift mechanism 42 includes a stopper 421 abutting on the processing table 20, a first moving frame 422 vertically movable in a second direction on a side surface of the stopper 421 away from the processing table 20, and a second moving frame 423 movable in a left-right direction in the third direction within the first moving frame 422, the second direction being not perpendicular to the first direction. The baffle 421 is mounted in a position facing the rear cover 24 on the processing table 20 in a butt joint manner, and the baffle 421 forms a sealed accommodating space together with the top plate 21, the bottom plate 22, the side plates 23 and the rear cover 24 of the processing table 20. A third guide rail 4211 and a fourth guide rail 4212 are respectively arranged on two side walls of the baffle 421 along the second direction on the side surface far away from the processing table 20, and the first moving frame 422 is arranged on the third guide rail 4211 and the fourth guide rail 4212; the first moving frame 422 is provided with a fifth guide rail 4221 and a sixth guide rail 4222 on two side walls along a third direction, the second moving frame 423 is installed on the fifth guide rail 4221 and the sixth guide rail 4222, and the third direction and the second direction are perpendicular in the same plane. Further, the displacement mechanism 42 further includes a first driving device 424 disposed inside the processing table 20, a rotating wheel 425 disposed on a side of the baffle 421 away from the processing table 20 and connected to the first driving device 424 through the baffle 421, and a rotating plate 426 disposed on the rotating wheel 425. The rotating plate 426 is substantially in the shape of an arc-shaped triangular plate, and the first driving device 424 can drive the rotating plate 426 to rotate through the rotating wheel 425, so as to drive the second moving frame 423 to move left and right and drive the second moving frame 423 to drive the first moving frame 422 to move up and down.
Further, the second bending mechanism 40 further includes a second supporting block 43 disposed on the first moving frame 422 and the second moving frame 423, the second clamping mechanism 41 is disposed on the second supporting block 43, a micro-motion device 44 is further disposed between the second supporting block 43 and the fourth clamping block 411, and the micro-motion device 44 drives the fourth clamping block 411 to move relative to the fifth clamping block 412, so as to respectively clamp and release the workpiece by the first clamping portion 413, the second clamping portion 414, and the third clamping portion 415.
Specifically, the bending table 50 is a square cabinet body, and is in butt joint with the second bending mechanism 40. The bending table 50 is provided with a bending knife 51 protruding out of the square cabinet body, and the bending knife 51 is arranged corresponding to the first clamping mechanism 33 advancing along the first direction.
The processing table 20, the first bending mechanism 30, the second bending mechanism 40, and the bending table 50 constitute main functional components of the present invention. When the shifting mechanism 42 drives the first clamping portion 413 of the second clamping mechanism 41 to correspond to the first clamping mechanism 33, the first clamping mechanism 33 clamps the first part of the workpiece located at the first clamping portion 413, and the first bending is completed; after the first bending and before the second bending, the shifting mechanism 42 drives the second clamping mechanism 41 to move, and the first clamping mechanism 33 puts the workpiece which is bent for the first time into the second clamping part 414; when the shifting mechanism 42 drives the second clamping portion 414 of the second clamping mechanism 41 to correspond to the first clamping mechanism 33, the first clamping mechanism 33 clamps a second portion of the same workpiece located at the second clamping portion 414, and the second bending is completed. The invention is not limited to two-time bending, and can also be bent for multiple times, and the number of the clamping parts in the second clamping mechanism can be set according to the bending times. This application bending device realizes bending in succession of work piece through the portable cooperation of first fixture and second fixture, has reduced manufacturing procedure, has effectively reduced manufacturing cost.
Specifically, the cover body 60 is a substantially square cabinet body, one side of which is adjacently provided with a slope surface 61 and a notch 62, the slope surface 61 is a transparent observation window, and the notch 62 is provided with a discharge hole 621. The observation window is arranged close to the first clamping mechanism 33 and the second clamping mechanism 41 so as to observe the bending process of the workpiece; the discharging hole 621 is used to correspond to the third clamping portion 415 of the second clamping mechanism 41, and is used to place a workpiece into the third clamping portion 415. The correcting clamping mechanism 341 is used for clamping and correcting the workpiece located in the third clamping portion 415, and placing the workpiece into the first clamping portion 413 through the shifting mechanism 42, and continuing to place a new workpiece into the third clamping portion 415 through the discharging hole 621, so as to realize continuous operation.
In the present invention, in order to realize the movement of the first bending mechanism 30 and the second bending mechanism 40, a motor, a pulley, and the like are further provided in the housing space of the processing table 20 or on the processing table 20, and the details will not be described here because they are conventional. Similarly, a motor and the like are also mounted on the bending table 50.
Referring to fig. 7, the present invention further provides a bending method based on the bending apparatus, where the bending method includes the following steps:
step S1, providing a workpiece to be bent, determining the bending times, and presetting the bending data of the workpiece during each bending;
in this embodiment, the workpiece is set to be bent twice.
Step S2, placing the workpiece to be bent into a first clamping part, wherein the rotating mechanism moves towards the bending knife along a first direction, the first clamping mechanism moves to the first part of the workpiece to be bent, and the first clamping mechanism clamps the first part of the workpiece to be bent;
in this embodiment, two workpieces to be bent can be continuously provided, and the workpieces to be bent are clamped and corrected by the position correcting mechanism and then respectively placed in the first clamping portion and the third clamping portion to be clamped, the workpiece in the first clamping portion is being processed, and the workpiece in the third clamping portion is to be processed.
Step S3, the rotating mechanism continues to move towards the bending knife along the first direction, and the first clamping mechanism clamps the workpiece to be bent and completes the first bending with the bending knife through preset bending data;
in this embodiment, the rotating mechanism may stop moving after moving for a certain distance, and the motor of the bending table drives the bending knife to rotate and drive the workpiece to be bent.
Step S4, the rotating mechanism moves along the first direction and towards the direction far away from the bending knife, and puts the workpiece bent for the first time into the second clamping part, the rotating mechanism adjusts the distance with the workpiece, and clamps the second part of the workpiece through the first clamping mechanism;
in this embodiment, after the first bending and before the second bending, the shifting mechanism drives the second clamping mechanism to move, and the first clamping mechanism puts the workpiece bent for the first time into the second clamping portion. The rotating head can drive the first clamping mechanism to rotate, and the rotating mechanism is matched to adjust the distance between the rotating head and the workpiece, so that the workpiece can be adjusted in the circumferential direction and the length direction, and the first clamping mechanism can clamp the second part of the workpiece conveniently.
And step S5, the rotating mechanism moves towards the bending knife along the first direction, and the first clamping mechanism clamps the workpiece to complete the second bending with the bending knife through preset bending data.
In this embodiment, the rotating head can drive the first fixture to continue rotating, further adjusts the bending point of work piece and bending sword.
The bending method can conveniently realize bending at a preset angle for many times through the matching of all parts of the bending device.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A bending device for bending a workpiece, the bending device comprising: a processing table; the first bending mechanism is arranged on the processing table and comprises a rotating mechanism moving back and forth along a first direction, a rotating head arranged at one end of the advancing direction of the rotating mechanism and a first clamping mechanism arranged on the rotating head; the bending device also comprises a bending table, and the bending table is provided with a bending knife corresponding to the first clamping mechanism; the second bending mechanism is butted with the processing table and comprises a second clamping mechanism corresponding to the first clamping mechanism and a shifting mechanism driving the second clamping mechanism to move; the second clamping mechanism comprises a first clamping part and a second clamping part, when the shifting mechanism drives the first clamping part of the second clamping mechanism to correspond to the first clamping mechanism, the first clamping mechanism clamps a first part of the workpiece positioned in the first clamping part, and the motor of the bending table drives the bending knife to rotate and drives the workpiece to be bent to complete first bending; after the first bending and before the second bending, the shifting mechanism drives the second clamping mechanism to move, and the first clamping mechanism puts the workpiece bent for the first time into a second clamping part; when the shifting mechanism drives the second clamping part of the second clamping mechanism to correspond to the first clamping mechanism, the first clamping mechanism clamps the second part of the workpiece positioned in the second clamping part, and the motor of the bending table drives the bending knife to rotate and drive the workpiece to be bent to complete secondary bending.
2. The bending apparatus according to claim 1, wherein the second clamping mechanism further comprises a third clamping portion, the first clamping portion is disposed intermediate the second clamping portion and the third clamping portion, the first bending mechanism further comprises a position correcting mechanism juxtaposed to the rotating mechanism, the position correcting mechanism comprises a correcting clamping mechanism moving in the same direction as the first clamping mechanism, the correcting clamping mechanism is configured to clamp and correct the workpiece disposed in the third clamping portion, and the workpiece is placed in the first clamping portion by the displacing mechanism.
3. The bending apparatus according to claim 1, wherein the first clamping mechanism comprises a first clamping block, a second clamping block, and a third clamping block that are simultaneously movable inwardly and outwardly within a common circle for clamping and unclamping the workpiece.
4. The bending apparatus according to claim 1, wherein the processing table includes a top plate having a first guide rail and a second guide rail arranged along the first direction, the first guide rail and the second guide rail are respectively provided with a first sliding block and a second sliding block, a first support block is provided above the first sliding block and the second sliding block, and the first bending mechanism is provided on the first support block.
5. The bending apparatus according to claim 1, wherein the shift mechanism includes a fence abutting against the machining table, a first moving frame movable up and down in a second direction on the fence, and a second moving frame movable left and right in a third direction in the first moving frame.
6. The bending apparatus according to claim 5, wherein a third guide rail and a fourth guide rail are respectively provided on two side walls of the baffle plate in the second direction on a surface thereof away from the processing table, and the first moving frame is mounted on the third guide rail and the fourth guide rail; the first movable frame is provided with a fifth guide rail and a sixth guide rail along two side walls in the third direction respectively, and the second movable frame is arranged on the fifth guide rail and the sixth guide rail.
7. The bending apparatus according to claim 6, wherein the displacement mechanism further comprises a first driving device disposed inside the processing table, a wheel disposed on the baffle plate and connected to the first driving device through the baffle plate, and a rotating plate disposed on the wheel.
8. The bending apparatus according to claim 7, wherein the second bending mechanism further comprises a second support block disposed on the first movable frame and the second movable frame, the second clamping mechanism is disposed on the second support block, the second clamping mechanism comprises a fourth clamping block and a fifth clamping block, and a micro-motion device is disposed between the second support block and the fourth clamping block, the micro-motion device drives the fourth clamping block to move relative to the fifth clamping block, so as to clamp and release the workpiece.
9. A bending method based on the bending apparatus according to any one of claims 1 to 8, characterized in that the bending method comprises the steps of: providing a workpiece to be bent, determining the bending times, and presetting the bending data of the workpiece during each bending; placing a workpiece to be bent into a first clamping part, wherein the rotating mechanism moves towards a bending knife along a first direction, the first clamping mechanism moves to a first part of the workpiece to be bent, and the first clamping mechanism clamps the first part of the workpiece to be bent; the rotating mechanism continues to move towards the bending knife along a first direction, a motor of the bending table drives the bending knife to rotate and drive a workpiece to be bent, and the first clamping mechanism clamps the workpiece to be bent to complete first bending with the bending knife through preset bending data; the rotating mechanism moves towards the direction far away from the bending knife along the first direction, and places the workpiece which is bent for the first time into the second clamping part, the rotating mechanism adjusts the distance between the rotating mechanism and the workpiece, and the second part of the workpiece is clamped through the first clamping mechanism; the rotating mechanism moves towards the bending knife along a first direction, the motor of the bending table drives the bending knife to rotate and drive a workpiece to be bent, and the first clamping mechanism clamps the workpiece to be bent for the second time through preset bending data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497467.7A CN111817106B (en) | 2020-06-02 | 2020-06-02 | Bending device and bending method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497467.7A CN111817106B (en) | 2020-06-02 | 2020-06-02 | Bending device and bending method |
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| CN111817106A CN111817106A (en) | 2020-10-23 |
| CN111817106B true CN111817106B (en) | 2022-05-20 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206898107U (en) * | 2017-07-07 | 2018-01-19 | 天津维亚电梯配件有限公司 | A kind of bender |
| CN207819157U (en) * | 2018-01-12 | 2018-09-04 | 天津电气科学研究院有限公司 | A kind of wiring harness automatic bending machine |
| CN209658579U (en) * | 2018-11-28 | 2019-11-19 | 深圳市乐兴国科技有限公司 | Apparatus for bending is used in a kind of anti-fracture mobile phone connector production |
| CN210387287U (en) * | 2019-08-07 | 2020-04-24 | 苏州汉信模型有限公司 | Special clamp for machining bent parts |
-
2020
- 2020-06-02 CN CN202010497467.7A patent/CN111817106B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206898107U (en) * | 2017-07-07 | 2018-01-19 | 天津维亚电梯配件有限公司 | A kind of bender |
| CN207819157U (en) * | 2018-01-12 | 2018-09-04 | 天津电气科学研究院有限公司 | A kind of wiring harness automatic bending machine |
| CN209658579U (en) * | 2018-11-28 | 2019-11-19 | 深圳市乐兴国科技有限公司 | Apparatus for bending is used in a kind of anti-fracture mobile phone connector production |
| CN210387287U (en) * | 2019-08-07 | 2020-04-24 | 苏州汉信模型有限公司 | Special clamp for machining bent parts |
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| CN111817106A (en) | 2020-10-23 |
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