Gripping device and material taking device

Abstract

The application relates to the technical field of material taking and placing devices, and aims to solve the problem that small target pieces are prone to falling or being damaged when being clamped in the prior art, and provides a clamping device and a material taking device. The clamping device comprises a positioning and clamping assembly and a rotating driving assembly. The positioning and clamping assembly comprises a clamping driving piece, two clamping jaws and a positioning piece. The positioning piece is located in the middle of the two clamping jaws and is used for positioning and matching target pieces. The two clamping jaws are respectively connected to the clamping driving piece and can be opened or closed under the driving of the clamping driving piece, and are used for clamping the positioned target pieces. The rotating driving assembly is transmissionally connected to the positioning and clamping assembly and is used for driving the positioning and clamping assembly to rotate, so that the positioning piece is rotated to an angle suitable for the target pieces. The application has the beneficial effects of accurate positioning and the target pieces not being prone to falling or being damaged.

Claims

1. A clamping device for clamping a target part, characterized in that, include: The positioning and clamping assembly includes a clamping drive, two grippers, and a positioning element; The positioning element is located between the two grippers and is used to position and engage the target element. The two grippers are respectively connected to the clamping drive and can open or close under the drive of the clamping drive to clamp the positioned target. A rotation drive assembly is connected to the positioning clamping assembly and is used to drive the positioning clamping assembly to rotate so that the positioning element rotates to an angle that is adapted to the target element.

2. The clamping device according to claim 1, characterized in that: The target component has a positioning hole, which is a non-circular hole; The positioning component includes a first rod segment and a positioning head. The positioning head is connected to the end of the first rod segment, and the shape of the outer peripheral surface of the positioning head is adapted to the positioning hole. The two grippers are used to clamp the outer peripheral surface of the target part on both sides.

3. The clamping device according to claim 1, characterized in that: The clamping drive includes a fixed part and two movable gripping fingers connected to the fixed part. The two grippers are respectively connected to the two movable gripping fingers so as to open or close under the drive of the two movable gripping fingers. The positioning and clamping assembly further includes a mounting base and an elastic element, wherein the mounting base is disposed between the two grippers; The positioning element is rod-shaped and slidably disposed on the mounting base along its axial direction; The elastic element elastically supports the positioning element along the axial direction of the positioning element, and applies an elastic force to the positioning element away from the fixed portion.

4. The clamping device according to claim 3, characterized in that: The two grippers each include a first connecting portion and a gripping portion, and each of the first connecting portions is connected to one of the movable gripping fingers; The two clamping parts are respectively connected to the two first connecting parts and extend toward one side of the positioning member.

5. The clamping device according to claim 3, characterized in that: The mounting base includes a first mounting block and a second mounting block; The first mounting block has a mounting groove that extends along the axial direction of the positioning member; The second mounting block includes a second connecting portion and an extension portion, the second connecting portion being connected to the first mounting block; the extension portion being connected to the second connecting portion and extending to the side of the mounting groove opposite to the fixed portion; The extension is provided with a first through hole, which extends through the extension along the axial direction of the positioning member; One end of the positioning member is slidably disposed in the mounting groove, and the other end passes through the first through hole along the axial direction of the positioning member and extends out of the first through hole; The elastic element abuts against the bottom surface of the positioning element and the mounting groove at both ends along the axial direction of the positioning element.

6. The clamping device according to claim 5, characterized in that: The positioning component includes a positioning head, a first rod segment, and a second rod segment. The first rod segment is connected to the second rod segment on the side of the groove bottom away from the mounting groove along the axial direction of the positioning component. The cross-sectional area of ​​the second rod segment is larger than that of the first rod segment; the first through hole fits into the outer peripheral surface of the first rod segment and confines the second rod segment between the surface of the extension portion facing the first mounting block along the axial direction of the positioning member and the bottom surface of the mounting groove.

7. The clamping device according to claim 3, characterized in that: The clamping drive also includes a limiting block, which is connected to the fixed part and extends along the axial direction of the positioning member to the opposite outer sides of the two movable gripping fingers, so as to limit the distance between the opening of the two movable gripping fingers.

8. The clamping device according to claim 1, characterized in that: The clamping device further includes a first base and a second base; The second base is rotatably connected to the first base; The rotation drive assembly is mounted on the first base and is connected to the second base for driving the second base to rotate; The positioning and clamping assembly is mounted on the second base and can rotate with the second base.

9. The clamping device according to claim 8, characterized in that: The first base includes an extension portion, and the extension portion has a second through hole, which extends through the extension portion along the axial direction of the positioning member; The rotation drive assembly includes a rotation drive component and a transmission rod. The rotation drive component is disposed on the first base, and the transmission rod is rotatably fitted into the second through hole. The transmission rod passes through the extension along the axial direction of the positioning component and is connected to the second base to drive the second base to rotate. The rotation drive is tractively connected to the transmission rod at one end away from the second base along the axial direction of the positioning member, so as to drive the second base to rotate via the transmission rod.

10. A material handling device, characterized in that, include: The support component is used to support the target component; The clamping device as described in any one of claims 1-9 is used to position and clamp the target component and remove the target component from the carrier assembly.

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