Clamping jaw structure convenient to replace

Abstract

The utility model relates to a clamping jaw structure convenient to replace, and belongs to the technical field of automatic machining. Comprising a plurality of clamping jaw units which are arranged at the bottom of a first mounting body in a sliding manner; each clamping jaw unit comprises a moving block, a jaw body is arranged at the bottom of each moving block, and each jaw body is fixed to the corresponding moving block through a connecting mechanism. And a mechanical claw is arranged at the bottom of the claw body. The connecting mechanism comprises a connecting sleeve, a hexagonal nut is arranged on the first mounting body, the connecting sleeve penetrates through the hexagonal nut, and the connecting sleeve is in threaded connection with the hexagonal nut; an inner threaded hole is formed in the center of the connecting sleeve, a connecting bolt penetrates through the inner threaded hole, one end of the connecting bolt penetrates through the moving block and penetrates through the claw body, and the connecting bolt is in threaded connection with the claw body. The mechanical gripper is small in size, the occupied space is reduced, when the mechanical gripper needs to be maintained and replaced, the connecting bolt and the connecting sleeve are screwed out, the gripper body can be detached from the moving block, the mechanical gripper is convenient to maintain and replace, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to a clamping claw structure which is easy to replace and belongs to the technical field of automated processing. Background Art

[0002] Industrial robots are indispensable equipment on automated assembly lines. Through multi-axis linkage, the end axis can reach any point in the hemispherical space with the robotic arm as the radius. When robots are applied to the metal processing industry, their uninterrupted working characteristics can greatly improve the production efficiency of machine tools. The most important thing for processing on machine tools is the pre-assembly of parts before processing. The end axis of the robot is usually equipped with a fixture that cooperates with the parts or a manipulator for clamping parts so that the robot can pick and place parts.

[0003] The structure of the manipulator can refer to the Chinese patent with the announcement number CN212287667U, which discloses a robot clamp and a robot, including a fixed base fixed on the end effector and two clamping arms relatively arranged on the fixed base with adjustable spacing, and a clamping space is formed between the clamping arms.

[0004] According to the above structure, the robot can adjust the distance between the two clamping arms to make the clamping claws fit objects of different sizes, and when clamped, the objects can be moved with the manipulator. However, as a clamp, the structure is large and occupies a large space; after long-term use, it needs to be regularly repaired and replaced, which is time-consuming and labor-intensive. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a claw structure which is easy to replace in view of the above-mentioned prior art, has a small size, reduces the occupied space, is easy to repair and replace, and saves time and labor.

[0006] The technical solution adopted by the utility model to solve the above-mentioned problem is: a claw structure that is easy to replace, including a plurality of claw units that are evenly distributed in the circumferential direction, the claw units are slidably arranged at the bottom of the first mounting body, and the claw units can move radially along the bottom of the first mounting body, so that the claw units are close to each other to loosen the inner hole of the workpiece; or move away from each other to grasp the inner hole of the workpiece; any of the claw units respectively includes a moving block, a claw body is provided at the bottom of the moving block, and the claw body is fixed to the moving block by a connecting mechanism; a mechanical claw is provided at the bottom of the claw body.

[0007] The connecting mechanism includes a connecting sleeve, a hexagonal nut is arranged on the first mounting body, the connecting sleeve is passed through the hexagonal nut, and the connecting sleeve is threadedly connected to the hexagonal nut; an internal threaded hole is arranged at the center of the connecting sleeve, a connecting bolt is passed through the internal threaded hole, one end of the connecting bolt passes through the moving block and passes through a claw body, and the connecting bolt is threadedly connected to the claw body.

[0008] The mechanical claw is fixed to the bottom of the claw body through a pressing plate.

[0009] A guide groove is provided at the bottom end of the first installation body, a guide block is arranged on the top of the moving block, and the guide block is arranged in the guide groove.

[0010] Compared with the prior art, the advantages of the utility model are: a claw structure that is easy to replace, with a small size and reduced space occupied, and the claw body is fixed to the moving block through a connecting mechanism; when the mechanical claw needs to be repaired or replaced, the connecting bolt and the connecting sleeve can be unscrewed to remove the claw body from the moving block, which is convenient for repairing and replacing the mechanical claw, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation of a claw structure that is easy to replace according to an embodiment of the utility model;

[0012] Figure 2 for Figure 1 A cross-sectional view of

[0013] In the figure, 1 is a first mounting body, 2 is a connecting bolt, 3 is a hexagonal nut, 4 is a connecting sleeve, 5 is a claw body, 6 is a mechanical claw, and 7 is a moving block. DETAILED DESCRIPTION

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] like Figure 1 , 2 As shown, in this embodiment, a claw structure that is easy to replace includes three claw units that are evenly distributed in the annular direction. The claw units are slidably arranged at the bottom of the first mounting body 1. The claw units can move radially along the bottom of the first mounting body 1, so that the claw units are close to each other to loosen the inner hole of the workpiece; or move away from each other to grasp the inner hole of the workpiece. Each claw unit includes a moving block 7, which is slidably arranged at the bottom of the first mounting body. A claw body 5 is provided at the bottom of the moving block 7. The claw body 5 is fixed to the moving block 7 through a connecting mechanism. The claw body 5 can be quickly installed and quickly disassembled through the connecting mechanism. A mechanical claw 6 is provided at the bottom of the claw body 5, and the mechanical claw 6 is fixed to the claw body 5 through a pressure plate.

[0016] The connection mechanism includes a connection sleeve 4, a hexagonal nut 3 is arranged at the bottom of the first mounting body 1, the connection sleeve 4 is horizontally penetrated by the hexagonal nut 3, and the outer surface of the connection sleeve 4 is threadedly connected with the hexagonal nut 3. An internal threaded hole is arranged at the center of the connection sleeve 4, and a connection bolt 2 is screwed into the internal threaded hole. One end of the connection bolt 2 passes through the moving block 7 and passes through the claw body 5, and the connection bolt 2 is threadedly connected with the claw body 5, so that the claw body 5 is fixed to the moving block 7.

[0017] A guide groove is provided at the bottom end of the first installation body, and a guide block is arranged on the top of the moving block. The guide block is arranged in the guide groove and plays a guiding role when the moving block moves radially.

[0018] The present application is small in size and occupies less space. The claw body is fixed to the moving block by a connecting mechanism. When the mechanical claw needs to be repaired or replaced, the claw body can be removed from the moving block by unscrewing the connecting bolts and the connecting sleeve, which makes it easier to repair and replace the mechanical claw, saving time and effort.

[0019] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A claw structure that is easy to replace, characterized in that: It comprises a plurality of circumferentially evenly distributed claw units, wherein the claw units are slidably arranged at the bottom of the first mounting body, and the claw units can move radially along the bottom of the first mounting body so that the claw units are close to each other to release the inner hole of the workpiece; or are away from each other to grasp the inner hole of the workpiece; any of the claw units comprises a moving block, a claw body is arranged at the bottom of the moving block, and the claw body is fixed to the moving block by a connecting mechanism; a mechanical claw is arranged at the bottom of the claw body.

2. The claw structure that is easy to replace according to claim 1 is characterized in that: The connecting mechanism includes a connecting sleeve, a hexagonal nut is arranged on the first mounting body, the connecting sleeve is passed through the hexagonal nut, and the connecting sleeve is threadedly connected to the hexagonal nut; an internal threaded hole is arranged at the center of the connecting sleeve, a connecting bolt is passed through the internal threaded hole, one end of the connecting bolt passes through the moving block and passes through a claw body, and the connecting bolt is threadedly connected to the claw body.

3. The claw structure that is easy to replace according to claim 2 is characterized in that: The mechanical claw is fixed to the bottom of the claw body through a pressing plate.

4. The claw structure that is easy to replace according to claim 1 is characterized in that: A guide groove is provided at the bottom end of the first installation body, a guide block is arranged on the top of the moving block, and the guide block is arranged in the guide groove.

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