Clamping jaw device for mechanical arm

Abstract

The clamping jaw device for the mechanical arm comprises a support, a supporting arm, a connecting piece and a clamping jaw, the top end of the supporting arm is arranged on the side wall of the support in a rotating mode through a shaft, the bottom end of the supporting arm is connected to the top of the clamping jaw in a rotating mode through a shaft, and the top end of the connecting piece is arranged on the side wall of the support in a rotating mode. The bottom end of the connecting piece is rotationally connected to the top of the clamping jaw through a shaft, the connecting piece is parallel to the supporting arm, the top of the clamping jaw and the top end of the supporting arm are parallel to a connecting line where the top end of the connecting piece is located, and a driving piece is arranged on the connecting piece. The utility model belongs to the technical field of clamping jaw devices, and particularly relates to a clamping jaw device for a mechanical arm.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping claw devices, in particular to a clamping claw device for a mechanical arm. Background Art

[0002] At present, with the rapid development of industrial automation, mechanical claws are gradually replacing traditional manual work. Among the many mechanical arm gripper devices, robots used for stacking and handling are the most widely used.

[0003] Although the existing mechanical arm clamp mechanism has a clamp mechanism to clamp objects when in use, most of the existing clamps only have two supporting links, and the gravity they can bear when in use is limited, resulting in poor use effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is that most existing clamps only have two supporting connecting rods, and the gravity they bear during use is limited, resulting in poor use effect.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a clamping device for a robotic arm, comprising a support, an arm, a connecting piece and a clamping piece, the top end of the arm is rotatably arranged on the side wall of the support through an axis, the bottom end of the arm is rotatably connected to the top of the clamping piece through an axis, the top end of the connecting piece is rotatably arranged on the side wall of the support, the bottom end of the connecting piece is rotatably connected to the top of the clamping piece through an axis, the connecting piece and the arm are parallel, the top of the clamping piece and the top of the arm are parallel to the connecting line where the top of the connecting piece is located, and a driving piece is provided on the connecting piece.

[0006] Preferably, the clamping jaws are arranged in a V-shaped structure.

[0007] Preferably, the connecting member includes connecting rod 1 and connecting rod 2, the middle part of the support is a hollow cavity structure, the top end of connecting rod 1 is rotatably arranged on the inner wall of the support through an axis, the top end of connecting rod 2 is fixedly connected to the bottom end of connecting rod 1, and the bottom end of connecting rod 2 is rotatably connected to the top of the clamp through an axis.

[0008] Preferably, the driving member includes a pneumatic cylinder and an extension plate, the end of the extension plate is fixedly connected to the top end of the connecting rod, the inner side wall of the support is provided with a support plate, the fixed end of the pneumatic cylinder is provided on the support plate, and the movable end of the pneumatic cylinder is movably connected to the extension plate.

[0009] Preferably, a slide groove is provided on the extension plate, a slide plate is provided at the movable end of the pneumatic cylinder, a convex column is provided on the slide plate, and the convex column is slidably arranged on the slide groove.

[0010] Preferably, a line connecting the top end of the first connecting rod and the connection point between the bottom end of the second connecting rod and the clamping claw is parallel and equal to the supporting arm.

[0011] Preferably, a mounting plate is provided at the top end of the support.

[0012] The utility model adopts the above structure to achieve the following beneficial effects: the driving member drives the connecting member to rotate around the connection with the support, and the connecting member can drive the support arm to drive the two clamping claws to clamp or release the object, and the two support arms cooperate with the two connecting members to clamp the object, thereby improving the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 The overall structure of the embodiment of the utility model is shown in FIG. Figure 3 ;

[0016] Figure 4 It is a cross-sectional view of an embodiment of the utility model.

[0017] Among them, 1. support arm, 2. connecting part, 3. clamping claw, 4. driving part, 5. connecting rod 1, 6. connecting rod 2, 7. pneumatic cylinder, 8. extension plate, 9. support plate, 10. slide groove, 11. slide plate, 12. boss, 13. mounting plate. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-4As shown, a clamping device for a mechanical arm proposed by the utility model comprises a support, an arm 1, a connecting member 2 and a clamping member 3, the top of the support is provided with a mounting plate 13, the device is fixed to the mechanical arm by the mounting plate 13, the top of the arm 1 is rotatably arranged on the side wall of the support through an axis, the bottom end of the arm 1 is rotatably connected to the top of the clamping member 3 through an axis, the clamping member 3 is arranged in a V-shaped structure, the top of the connecting member 2 is rotatably arranged on the side wall of the support, the bottom end of the connecting member 2 is rotatably connected to the top of the clamping member 3 through an axis, the connecting member 2 and the arm 1 are parallel, the top of the clamping member 3 and the top of the arm 1 are parallel to the connecting line where the top of the connecting member 2 is located, the connecting member 2 is provided with a driving member 4, the driving member 4 drives the connecting member 2 to rotate around the connection with the support, then the connecting member 2 can drive the arm 1 to drive the two clamping members 3 to clamp or release the object, and the two arms 1 cooperate with the two connecting members 2 to clamp the object, thereby improving the stability of clamping.

[0021] like Figure 2 As shown, the connecting member 2 includes a connecting rod 1 5 and a connecting rod 2 6. The middle part of the support is a hollow cavity structure. The top end of the connecting rod 1 5 is rotatably arranged on the inner wall of the support, the top end of the connecting rod 2 6 is fixedly connected to the bottom end of the connecting rod 1 5, and the bottom end of the connecting rod 2 6 is rotatably connected to the top of the clamp 3 through the shaft. By driving the connecting rod 1 5 to rotate, the connecting rod 2 6 and the support arm 1 can drive the clamp 3 to open and close.

[0022] like Figure 4 As shown, the driving member 4 includes a pneumatic cylinder 7 and an extension plate 8, the end of the extension plate 8 is fixedly connected to the top end of the connecting rod 1 5, the inner side wall of the support is provided with a support plate 9, the fixed end of the pneumatic cylinder 7 is provided on the support plate 9, and the movable end of the pneumatic cylinder 7 is movably connected to the extension plate 8. The pneumatic cylinder 7 is extended and retracted to drive the extension plate 8 to rotate, and the extension plate 8 drives the connecting rod 1 5 and the connecting rod 2 6 to rotate.

[0023] like Figure 4 As shown, the extension plate 8 is provided with a slide groove 10, the movable end of the pneumatic cylinder 7 is provided with a slide plate 11, the slide plate 11 is provided with a boss 12, and the boss 12 is slidably arranged on the slide groove 10. When the pneumatic cylinder 7 is extended or retracted, the slide plate 11 moves up and down, and the boss 12 thereon slides in the slide groove 10 of the extension plate 8, so as to drive the extension plate 8 and the connecting rod 5 to rotate around the connection with the support.

[0024] The connecting line between the top end of the connecting rod 1 5 and the connection point between the bottom end of the connecting rod 2 6 and the clamping claw 3 is parallel and equal to the supporting arm 1 .

[0025] During specific use, the pneumatic cylinder 7 is extended and retracted, so that the slide plate 11 moves up and down, and the convex column 12 thereon slides in the slide groove 10 of the extension plate 8 to drive the extension plate 8 to rotate, and the connecting rod 2 6 and the support arm 1 rotate accordingly. Because a parallelogram is formed between the support arm 1, the top of the clamping jaw 3 and the support, when the extension plate 8 drives the connecting rod 1 5 and the connecting rod 2 6 to rotate, the two clamping jaws 3 open and close. The connection rod 1 5 and the connecting rod 2 6 cooperate with the support arm 1 to improve the stability of the clamping jaw 3 in clamping objects.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A gripper device for a robot arm, characterized in that: It includes a support, an arm, a connecting piece and a clamping jaw. The top end of the arm is rotatably arranged on the side wall of the support, the bottom end of the arm is rotatably connected to the top of the clamping jaw through the axis, the top end of the connecting piece is rotatably arranged on the side wall of the support, the bottom end of the connecting piece is rotatably connected to the top of the clamping jaw through the axis, the connecting piece and the arm are parallel, the top of the clamping jaw and the top end of the arm are parallel to the connecting line where the top end of the connecting piece is located, and a driving piece is provided on the connecting piece.

2. A gripper device for a robot arm according to claim 1, characterized in that: The clamping claw is arranged in a V-shaped structure.

3. A gripper device for a robot arm according to claim 1, characterized in that: The connecting member includes connecting rod 1 and connecting rod 2. The middle part of the support is a hollow cavity structure. The top end of connecting rod 1 is rotatably arranged on the inner wall of the support through an axis, the top end of connecting rod 2 is fixedly connected to the bottom end of connecting rod 1, and the bottom end of connecting rod 2 is rotatably connected to the top of the clamp through an axis.

4. A gripper device for a robot arm according to claim 1, characterized in that: The driving member includes a pneumatic cylinder and an extension plate, the end of the extension plate is fixedly connected to the top end of the connecting rod, the inner side wall of the support is provided with a support plate, the fixed end of the pneumatic cylinder is arranged on the support plate, and the movable end of the pneumatic cylinder is movably connected to the extension plate.

5. A gripper device for a robot arm according to claim 4, characterized in that: The extension plate is provided with a slide groove, the movable end of the pneumatic cylinder is provided with a slide plate, the slide plate is provided with a convex column, and the convex column is slidably arranged on the slide groove.

6. A gripper device for a robot arm according to claim 3, characterized in that: The connecting line between the top end of the first connecting rod and the connection point between the bottom end of the second connecting rod and the clamping claw is parallel and equal to the supporting arm.

7. A gripper device for a robot arm according to claim 1, characterized in that: A mounting plate is arranged on the top of the support.

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