Clamping jaw mechanism

Abstract

The utility model provides a clamping jaw mechanism which comprises a holding seat, an air cylinder and a clamping jaw assembly, a penetrating guide groove is formed in the top face of one end of the holding seat, and an L-shaped clamping area is formed on the top face of the other end of the holding seat. The air cylinder is located at the end, away from the L-shaped clamping area, of the holding base, a telescopic shaft of the air cylinder extends into the penetrating guide groove and is provided with a connecting assembly, a push plate is movably arranged in the penetrating guide groove, one end of the push plate is connected with the connecting assembly, and the other end of the push plate extends out of the penetrating guide groove and is rotationally connected with two linkage plates. The clamping jaw assembly comprises a left clamping jaw and a right clamping jaw, the middle of the left clamping jaw and the middle of the right clamping jaw are arranged in the L-shaped clamping area through a fixing shaft and can rotate along the fixing shaft, one end of the left clamping jaw and one end of the right clamping jaw are rotationally connected with the linkage plate on the same side, and the other end of the left clamping jaw and the other end of the right clamping jaw extend out of the L-shaped clamping area. According to the clamping jaw mechanism, opening and closing of the clamping jaw assembly are controlled through the air cylinder, then loosening and grasping of the electric wire are achieved, the clamping jaw mechanism can be applied to wire harness processing equipment such as a full-automatic inserting line crimping machine, a wire stripping machine and an inserting line machine, and the precision of electric wire cutting and electric wire stripping is guaranteed.

Description

A gripper mechanism Technical Field

[0001] This utility model relates to the field of automotive wiring harness processing equipment, specifically a gripper mechanism. Background Technology

[0002] Automotive wiring harnesses are the fundamental carriers of internal communication in automobiles. As the main network of automotive circuits, they connect and enable the electrical and electronic components of the vehicle; without wiring harnesses, there would be no automotive circuitry. Fully automatic wire crimping machines and wire stripping machines are examples of wiring harness processing equipment. Fully automatic wire crimping machines integrate multiple functions such as feeding, cutting, wire stripping, and crimping; wire stripping machines not only strip wires but can also be equipped with marking and cutting functions. However, in all of these wiring harness processing equipment, wire cutting and / or wire stripping are essential. To ensure the accuracy of wire cutting and stripping, we have developed and designed a novel wire clamping mechanism. Summary of the Invention

[0003] This utility model provides a gripper mechanism for gripping wires.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A gripper mechanism includes a retaining seat, a cylinder, and a gripper assembly. One end of the retaining seat has a through guide groove on its top surface, and the other end of the retaining seat has an L-shaped gripping area on its top surface. The cylinder is located at the end of the retaining seat away from the L-shaped gripping area. The telescopic shaft of the cylinder extends into the through guide groove and is fitted with a connecting assembly. A push plate is movably disposed within the through guide groove. One end of the push plate is connected to the connecting assembly, and the other end extends out of the through guide groove into the L-shaped gripping area and is rotatably connected to two linkage plates. The gripper assembly includes a left gripper and a right gripper. The middle portions of the left and right grippers are positioned within the L-shaped gripping area via a fixed shaft and are both rotatable along the fixed shaft. One end of the left and right grippers is rotatably connected to a linkage plate on the same side as the left and right grippers, and the other end extends out of the L-shaped gripping area.

[0006] Preferably, the top of the retaining seat is provided with a cover plate, which is adapted to the retaining seat; a fixing plate is provided at the top of the end of the cover plate away from the L-shaped clamping area, and the cylinder is set at the end of the retaining seat through the fixing plate.

[0007] Preferably, the L-shaped clamping area of ​​the retaining seat is provided with a fixing post for supporting the cover plate. The fixing post is located between the left and right clamping jaws, and a pin passes through the cover plate into the fixing post to achieve fixation.

[0008] Preferably, a positioning component is also provided, which includes a first positioning plate and a second positioning plate. A limiting groove is formed on the cover plate located above the push plate. The first positioning plate is located in the limiting groove, with its lower end set on the top of the push plate and its upper end extending out of the limiting groove and threadedly connected to a positioning bolt. The second positioning plate is set on the top of the cover plate and is located on the side of the limiting groove near the gripper assembly.

[0009] Preferably, the connecting assembly includes a first connecting plate and a second connecting plate. One end of the first connecting plate is disposed at the end of the cylinder telescopic shaft, and the other end is provided with a connecting groove that penetrates its upper and lower sides. The end of the push plate near the second connecting plate is also provided with a connecting groove that penetrates its upper and lower sides. The two ends of the second connecting plate are respectively movably disposed in the connecting grooves of the first connecting plate and the push plate.

[0010] Preferably, the ends of the left and right jaws located outside the L-shaped clamping area have mutually cooperating clamping plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This gripper mechanism controls the opening and closing of the gripper assembly through a cylinder, thereby realizing the loosening and gripping of the wire. It can be applied to wire harness processing equipment such as fully automatic wire crimping machines, wire stripping machines and wire unwinding machines, ensuring the accuracy of wire cutting and wire stripping. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the structure of this utility model.

[0013] Figure 2 is a schematic diagram of the structure after removing the fixing plate, cover plate and second positioning plate from Figure 1.

[0014] Figure 3 is an exploded view of the gripper assembly in Figure 2 when it is clamping.

[0015] In the diagram: 1. Retaining seat; 2. Cover plate; 3. Cylinder; 4. Fixing plate; 5. Gripper assembly; 6. Through guide groove; 7. L-shaped clamping area; 8. Connecting assembly; 9. Push plate; 10. Linkage plate; 11. Fixed shaft; 12. Fixed seat; 13. First positioning plate; 14. Second positioning plate; 15. Limiting through groove; 16. Positioning bolt; 17. Connecting through groove; 51. Left gripper; 52. Right gripper; 53. Clamping plate; 81. First connecting plate; 82. Second connecting plate; Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art.

[0017] As shown in Figures 1-3, the gripper mechanism of this utility model includes a retaining seat 1, a cylinder 3, and a gripper assembly 5. A through guide groove 6 is formed on the top surface of one end of the retaining seat 1, and an L-shaped clamping area 7 is formed on the top surface of the other end of the retaining seat 1. The cylinder 3 is located at the end of the retaining seat 1 away from the L-shaped clamping area 7. The telescopic shaft of the cylinder 3 extends into the through guide groove 6 and is equipped with a connecting assembly 8. A push plate 9 is movably disposed within the through guide groove 6, the top of which is flush with the top of the through guide groove. One end is connected to the connecting assembly 8, and the other end extends through the guide groove to the L-shaped clamping area 7, and is rotatably connected to two linkage plates 10, which are arranged alternately on the push plate. The gripper assembly 5 includes a left gripper 51 and a right gripper 52. The middle of the left gripper 51 and the right gripper 52 are set in the L-shaped clamping area through a fixed shaft 11, and both can rotate along the fixed shaft 11. One end of the left gripper 51 and the right gripper 52 is rotatably connected to the linkage plate 10 on the same side, and the other end extends out of the L-shaped clamping area. The push plate 9 has a side-mounted L-shaped structure that fits the bottom of the guide groove. This design is mainly adapted to the position of the cylinder telescopic shaft.

[0018] Furthermore, the ends of the left jaw 51 and right jaw 52 located outside the L-shaped clamping area have mutually cooperating clamping plates 53, which can increase the clamping area.

[0019] Figures 1 and 2 show the non-working state of the gripper mechanism, where the gripper assembly is in the open state. At this time, the cylinder is not activated, and the two linkage plates are close to each other, causing the ends of the left and right grippers connected to the linkage plates to move closer together. Correspondingly, the ends of the left and right grippers located outside the L-shaped clamping area are in the open state, and the corresponding clamping plates are also in the open state. Figure 3 shows an exploded view of the gripper assembly in Figure 2 when it is clamping. During operation, the cylinder activates, pushing the push plate to extend further through the guide groove via the connecting assembly. Since both ends of the linkage plate are movably connected to the push plate and the left and right grippers respectively, the push plate moves forward, causing the other ends of the two linkage plates to gradually open. Simultaneously, this causes the ends of the left and right grippers connected to them to open. The middle of the left and right grippers rotates along the fixed axis, causing the other ends of the left and right grippers to gradually move closer, thus bringing their end clamping plates closer together to achieve clamping.

[0020] To facilitate the arrangement of the gripper mechanism and ensure that the connecting components, push plates, etc., do not come out of the through guide groove, a cover plate 2 is provided on the top of the retaining seat 1. The length and width of the cover plate 2 are adapted to the retaining seat and can completely cover the top of the retaining seat 1. A fixing plate 4 is provided on the top of the end of the cover plate 2 away from the L-shaped clamping area. The cylinder 3 is set at the end of the retaining seat 1 away from the L-shaped clamping area through the fixing plate 4. The two ends of the fixing shaft 11 are fixed to the cover plate and the retaining seat respectively, and bolts are inserted from the cover plate and the retaining seat to tighten the fixing shaft.

[0021] Because the cover plate is long, although the cover plate is fixed to the retaining seat by bolts at one end, the cover plate in the L-shaped clamping area is suspended. In order to ensure the stability of the cover plate, the L-shaped clamping area 7 of the retaining seat 1 is provided with a fixing post 12 for supporting the cover plate. The fixing post 12 is located between the left clamp 51 and the right clamp 52, and between the fixing shaft 11 and the two linkage plates 10. The pin passes through the cover plate into the fixing post to achieve fixation.

[0022] To enable clamping of wires of different diameters and even other items, this embodiment also includes a positioning component that adjusts the clamping distance between the end plates of the left and right grippers. The positioning component includes a first positioning plate 13 and a second positioning plate 14. A limiting groove 15 is formed on the cover plate 2 above the push plate. The first positioning plate 13 is located within the limiting groove, with its lower end positioned on the top of the push plate 9 and its upper end extending out of the limiting groove 15 and threadedly connected to a positioning bolt 16. The positioning bolt 16 is arranged along the length of the cover plate. The second positioning plate 14 is located on the top of the cover plate 1, on the side of the limiting groove 15 closest to the gripper assembly 5. When the cylinder is not activated, the first positioning plate is located at the end of the limiting groove closest to the cylinder. When the cylinder is activated, it causes the push plate to extend forward, and the first positioning plate also moves forward along the limiting groove. Simultaneously, the positioning bolt moves with the first positioning plate until it presses against the second positioning plate, at which point the push plate can no longer extend forward. At this point, the clamping distance between the end plates of the left and right grippers is constant. With the positioning bolt extended to the length shown in Figures 1-3, the end plates of the left and right jaws are in contact with each other, and their clamping distance is basically 0. By rotating the positioning bolt and reducing its extension length, the clamping distance of the end plates of the left and right jaws can be adjusted, thereby increasing the clamping distance.

[0023] In this embodiment, the connecting assembly 8 includes a first connecting plate 81 and a second connecting plate 82. One end of the first connecting plate 81 is sleeved on the end of the cylinder telescopic shaft and locked with screws, while the other end has a connecting groove 17 extending through its upper and lower sides. The push plate 9 also has a connecting groove 17 extending through its upper and lower sides at the end near the second connecting plate. The two ends of the second connecting plate 82 are respectively movably disposed within the connecting grooves 17 of the first connecting plate 81 and the push plate 9 via rotating shafts. This design ensures that the cylinder telescopic shaft and the push plate move in the same direction during installation, avoiding jamming between the telescopic shaft and the cylinder body.

Claims

1. A gripper mechanism, characterized in that: The device includes a retainer, a cylinder, and a gripper assembly. One end of the retainer has a through guide groove on its top surface, and the other end has an L-shaped gripping area. The cylinder is located at the end of the retainer away from the L-shaped gripping area. The cylinder's telescopic shaft extends into the through guide groove and is fitted with a connecting assembly. A push plate is movably mounted within the through guide groove. One end of the push plate is connected to the connecting assembly, and the other end extends out of the through guide groove into the L-shaped gripping area, and is rotatably connected to two linkage plates. The gripper assembly includes a left gripper and a right gripper. The middle portions of the left and right grippers are positioned within the L-shaped gripping area via a fixed shaft and can rotate along the fixed shaft. One end of the left and right grippers is rotatably connected to a linkage plate on the same side, and the other end extends out of the L-shaped gripping area.

2. The jaw mechanism of claim 1, wherein: The top of the retaining seat is provided with a cover plate, which is adapted to the retaining seat; a fixing plate is provided at the top of the end of the cover plate away from the L-shaped clamping area, and the cylinder is set at the end of the retaining seat through the fixing plate.

3. The jaw mechanism of claim 2, wherein: The L-shaped clamping area of ​​the retaining seat is provided with a fixing post for supporting the cover plate. The fixing post is located between the left and right clamping jaws, and a pin passes through the cover plate into the fixing post to achieve fixation.

4. The gripper mechanism according to claim 2, characterized in that: A positioning component is also provided, which includes a first positioning plate and a second positioning plate. A limiting groove is provided on the cover plate located above the push plate. The first positioning plate is located in the limiting groove, with its lower end set on the top of the push plate and its upper end extending out of the limiting groove and threadedly connected to a positioning bolt. The second positioning plate is set on the top of the cover plate and is located on the side of the limiting groove close to the gripper component.

5. The jaw mechanism of claim 1, wherein: The connecting assembly includes a first connecting plate and a second connecting plate. One end of the first connecting plate is disposed at the end of the cylinder telescopic shaft, and the other end is provided with a connecting groove that penetrates its upper and lower sides. The end of the push plate near the second connecting plate is also provided with a connecting groove that penetrates its upper and lower sides. The two ends of the second connecting plate are respectively movably disposed in the connecting grooves of the first connecting plate and the push plate.

6. The gripper mechanism according to claim 1, characterized in that: The ends of the left and right jaws, located outside the L-shaped clamping area, have mating clamping plates.

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