Mechanical arm clamp

Abstract

The utility model discloses a mechanical arm clamp, which belongs to the technical field of mechanical arms and comprises a base, a sliding plate is arranged above the base, a fixing plate is fixedly connected to the top of the sliding plate, a fixing frame is fixedly connected to one side of the fixing plate, and a connecting shaft is fixedly connected to the middle of one side of the fixing frame. An adjusting ring is connected to the outer wall of the connecting shaft in a sliding mode, a sixth connecting rod is hinged to the outer wall of the adjusting ring, a fifth connecting rod is hinged to one end of the sixth connecting rod, a sliding groove is fixedly connected to one side of the fixing frame, a sliding block is connected into the sliding groove in a sliding mode, and a fourth connecting rod is connected to one side of the sliding block in a rotating mode. According to the mechanical arm clamp, a mechanism capable of adjusting the height is additionally arranged on the mechanical arm clamp, the optimal contact position between the clamp and a workpiece can be ensured, and therefore the stability and accuracy of clamping are improved. The stable clamping mechanism can ensure that the workpiece is kept firm and does not fall off in the machining, transporting or assembling process.

Description

Technical Field

[0001] The utility model relates to the technical field of robotic arms, and particularly to a robotic arm fixture. Background Art

[0002] A robotic arm fixture is a device installed at the end of a robotic arm for grasping, fixing, and positioning workpieces. As the "hand" of the robotic arm, it can simulate the functions of a human hand and complete operations such as clamping, transporting, and placing workpieces.

[0003] When this device is in use, the following defects still exist: Existing robotic arm fixtures usually cannot adjust the height of the device as needed during use, thus reducing production efficiency. Moreover, during the clamping process, the clamping is unstable, which may cause the workpiece to fall off during processing or transportation, requiring re-clamping operations, increasing production time and costs. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a robotic arm fixture is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A robotic arm fixture includes a base. Above the base is provided a sliding plate. The top of the sliding plate is fixedly connected with a fixing plate. One side of the fixing plate is fixedly connected with a fixing frame. The middle of one side of the fixing frame is fixedly connected with a connecting shaft. The outer wall of the connecting shaft is slidably connected with an adjusting ring. The outer wall of the adjusting ring is hinged with a link six. One end of the link six is hinged with a link five. One side of the fixing frame is fixedly connected with a sliding groove. A slider is slidably connected in the sliding groove. One side of the slider is rotatably connected with a link four. One end of the link four is rotatably connected with a link three. Extension blocks are fixedly connected to both sides of the fixing frame. The link three is rotatably connected between the extension blocks. A cylinder is arranged inside the fixing frame. One end of the link three is rotatably connected to one side of the cylinder. The link three is fixedly connected with the link five. The top of the slider is fixedly connected with a connecting plate. The top of the connecting plate is fixedly connected with a fixture body.

[0006] As a further description of the above technical solution:

[0007] The top of the base is fixedly connected with a support plate.

[0008] As a further description of the above technical solution:

[0009] The top of the support plate is fixedly connected with a fixing ring.

[0010] As a further description of the above technical solution:

[0011] A bidirectional lead screw is rotatably connected to the middle of the fixed ring, and a handle is fixedly connected to one end of the bidirectional lead screw.

[0012] As a further description of the above technical solution:

[0013] Adjusting blocks one and two are respectively threadedly connected to the outer wall of the bidirectional lead screw.

[0014] As a further description of the above technical solution:

[0015] Two connecting rods are rotatably connected to both sides of the adjusting block one, and one connecting rods are rotatably connected to both sides of the adjusting block two.

[0016] As a further description of the above technical solution:

[0017] An extension plate is fixedly connected to the top of the sliding plate.

[0018] As a further description of the above technical solution:

[0019] The one connecting rod and the two connecting rods rotate in the middle of the extension plate.

[0020] As a further description of the above technical solution:

[0021] The sliding plate slides on the outer wall of the support plate.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, by adding a mechanism capable of adjusting the height to the mechanical arm fixture, by rotating the handle, the bidirectional lead screw is driven to rotate, so that the adjusting block one and the adjusting block two rotate on its outer wall, driving the sliding plate to slide on the outer wall of the support plate. By adjusting the height of the fixture, the optimal contact position between the fixture and the workpiece can be ensured, thereby improving the stability and accuracy of clamping.

[0024] In the utility model, by adding a mechanism capable of stably clamping to the mechanical arm fixture, using a cylinder as the driving force, and with the arrangement of the three connecting rods, the four connecting rods, the five connecting rods, and the six connecting rods, the clamping of the two fixtures on the article is realized, and the stable clamping mechanism can ensure that the workpiece remains firm and does not fall off during processing, transportation or assembly. Description of the Drawings

[0025] Figure 1 is the first perspective view of a mechanical arm fixture proposed by the utility model;

[0026] Figure 2 is the second perspective view of a mechanical arm fixture proposed by the utility model;

[0027] Figure 3 is the cross-sectional view of a mechanical arm fixture proposed by the utility model.

[0028] Legend Explanation:

[0029] 1. Base; 2. Support plate; 3. Bi-directional lead screw; 4. Adjusting block 1; 5. Adjusting block 2; 6. Extension plate; 7. Link 1; 8. Link 2; 9. Handle; 10. Fixed ring; 11. Fixed plate; 12. Fixed frame; 13. Slide groove; 14. Extension block; 15. Link 3; 16. Link 4; 17. Slide block; 18. Link 5; 19. Connecting plate; 20. Clamp body; 21. Connecting shaft; 22. Adjusting ring; 23. Cylinder; 24. Link 6; 25. Slide plate. Detailed Implementation Manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Referring to Figures 1 - 3 , an embodiment provided by the present invention: A robotic arm clamp includes a base 1, a slide plate 25 is arranged above the base 1, a fixed plate 11 is fixedly connected to the top of the slide plate 25, a fixed frame 12 is fixedly connected to one side of the fixed plate 11, a connecting shaft 21 is fixedly connected to the middle of one side of the fixed frame 12, an adjusting ring 22 is slidably connected to the outer wall of the connecting shaft 21, a link 6 24 is hinged to the outer wall of the adjusting ring 22, one end of the link 6 24 is hinged to a link 5 18, a slide groove 13 is fixedly connected to one side of the fixed frame 12, a slide block 17 is slidably connected in the slide groove 13, a link 4 16 is rotatably connected to one side of the slide block 17, one end of the link 4 16 is rotatably connected to a link 3 15, extension blocks 14 are fixedly connected to both sides of the fixed frame 12, the link 3 15 is rotatably connected between the extension blocks 14, a cylinder 23 is arranged inside the fixed frame 12, one end of the link 3 15 rotates on one side of the cylinder 23, the link 3 15 is fixedly connected to the link 5 18, a connecting plate 19 is fixedly connected to the top of the slide block 17, and a clamp body 20 is fixedly connected to the top of the connecting plate 19.

[0032] Among them, a support plate 2 is fixedly connected to the top of the base 1, a fixing ring 10 is fixedly connected to the top of the support plate 2, a bidirectional lead screw 3 is rotatably connected to the middle of the fixing ring 10, a handle 9 is fixedly connected to one end of the bidirectional lead screw 3, and a first adjusting block 4 and a second adjusting block 5 are respectively threadedly connected to the outer wall of the bidirectional lead screw 3. By controlling the rotation direction of the bidirectional lead screw 3 with the handle 9, the relative positions of the first adjusting block 4 and the second adjusting block 5 can be conveniently adjusted. Two connecting rods 8 are rotatably connected to both sides of the first adjusting block 4, and two connecting rods 7 are rotatably connected to both sides of the second adjusting block 5. An extension plate 6 is fixedly connected to the top of the sliding plate 25. The connecting rod 7 and the connecting rod 8 are rotatably connected to the middle of the extension plate 6. The sliding plate 25 slides on the outer wall of the support plate 2. By the rotational connection of the connecting rod 7 and the connecting rod 8 with the extension plate 6, the precise control of the position of the sliding plate 25 can be achieved.

[0033] Working principle: The staff moves the robotic arm fixture to a suitable position. According to the required height, the handle 9 is rotated. The handle 9 drives the bidirectional lead screw 3 to rotate in the fixing ring 10. The bidirectional lead screw 3 drives the first adjusting block 4 and the second adjusting block 5 to move towards the middle or both sides simultaneously. The connecting rod 7 swings between the second adjusting block 5 and the extension plate 6, and the connecting rod 8 swings between the first adjusting block 4 and the extension plate 6, driving the sliding plate 25 to slide on the outer wall of the support plate 2. Subsequently, the air cylinder 23 is started. The air cylinder 23 expands and contracts in the fixing frame 12, driving the connecting rod 15 to swing in the middle of the extension block 14. The connecting rod 18 on one side of the connecting rod 15 drives the connecting rod 24 to move. The connecting rod 24 swings between the connecting rod 18 and the adjusting ring 22. The connecting rod 24 drives the adjusting ring 22 to slide on the outer wall of the connecting shaft 21. One end of the connecting rod 15 rotates at one end of the air cylinder 23, and the other end of the connecting rod 15 rotates at one end of the connecting rod 16. The connecting rod 16 drives the slider 17 to slide in the chute 13, and drives the fixture body 20 to clamp through the connection of the connecting plate 19.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A robotic arm fixture, comprising a base (1), characterized in that: Above the base (1), there is a sliding plate (25). The top of the sliding plate (25) is fixedly connected with a fixing plate (11). One side of the fixing plate (11) is fixedly connected with a fixing frame (12). In the middle of one side of the fixing frame (12), a connecting shaft (21) is fixedly connected. The outer wall of the connecting shaft (21) is slidably connected with an adjusting ring (22). The outer wall of the adjusting ring (22) is hinged with a sixth connecting rod (24). One end of the sixth connecting rod (24) is hinged with a fifth connecting rod (18). One side of the fixing frame (12) is fixedly connected with a sliding groove (13). A slider (17) is slidably connected in the sliding groove (13). One side of the slider (17) is rotatably connected with a fourth connecting rod (16). One end of the fourth connecting rod (16) is rotatably connected with a third connecting rod (15). Extension blocks (14) are fixedly connected to both sides of the fixing frame (12). The third connecting rod (15) is rotatably connected between the extension blocks (14). A cylinder (23) is arranged inside the fixing frame (12). One end of the third connecting rod (15) is rotatable on one side of the cylinder (23). The third connecting rod (15) is fixedly connected with the fifth connecting rod (18). The top of the slider (17) is fixedly connected with a connecting plate (19). The top of the connecting plate (19) is fixedly connected with a fixture body (20).

2. The robotic arm fixture according to claim 1, wherein: The top of the base (1) is fixedly connected with a support plate (2).

3. The robotic arm fixture according to claim 2, wherein: The top of the support plate (2) is fixedly connected with a fixing ring (10).

4. The robotic arm fixture according to claim 3, characterized in that: A bidirectional lead screw (3) is rotatably connected in the middle of the fixing ring (10). One end of the bidirectional lead screw (3) is fixedly connected with a handle (9).

5. The robotic arm fixture according to claim 4, characterized in that: An adjusting block one (4) and an adjusting block two (5) are respectively threadedly connected to the outer wall of the bidirectional lead screw (3).

6. The robotic arm fixture according to claim 5, wherein: Both sides of the adjusting block one (4) are rotatably connected with a second connecting rod (8). Both sides of the adjusting block two (5) are rotatably connected with a first connecting rod (7).

7. A robotic arm fixture according to claim 1, characterized in that: An extension plate (6) is fixedly connected to the top of the sliding plate (25).

8. A robotic arm fixture according to claim 6, characterized in that: The first connecting rod (7) and the second connecting rod (8) are rotatable in the middle of the extension plate (6).

9. The robotic arm fixture according to claim 1, characterized in that: The sliding plate (25) slides on the outer wall of the support plate (2).

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