A closed ring structure for gripping cylindrical workpieces

Abstract

A closed ring structure for grabbing a cylinder workpiece comprises upper square blocks, lower square blocks, rotation shafts and synchronous transmission assemblies. The multiple upper square blocks and the multiple lower square blocks are arranged at intervals, conduct surrounding along any one of respective diagonal lines in an end-to-end manner and are rotationally connected at the opposite angle positions through the rotation shafts, and accordingly the closed ring structure is formed. The two rotation shafts arranged on the same lower square block are in rigidity connection to the upper square blocks connected with the rotation shafts, wherein the two rotation shafts are connected through the corresponding synchronous transmission assembly. Rotation of any rotation shaft drives same-direction rotation of the other corresponding rotation shaft through transmission of the corresponding synchronous transmission assembly, unfolding or folding movement of the whole closed ring structure is achieved, and the cylinder workpiece is grabbed in the inner circumference of the closed ring structure. The closed ring structure for grabbing the cylinder workpiece is provided and can change the situation that existing clamps only have a single clamping function, and center alignment positioning can be conducted on the cylinder workpiece.

Description

technical field [0001] The invention relates to the technical field of fixtures, in particular to a closed ring structure for gripping cylindrical workpieces. Background technique [0002] The grippers in the prior art are generally open grippers, that is, open to grasp objects like a human hand. This type of gripper only has the function of grasping and transferring the object, and does not further limit the gripping of the object, and the object is easily affected by the inertia of acceleration or deceleration during the transfer process. If the holding center does not coincide with the center of the object, the object is very easy to drop, which will greatly affect the production efficiency of the processing, and it is easy to damage the held object. [0003] In addition, for grippers that only have a gripping effect, after the gripper grabs the item for transfer, the placement of the item is only in a rough orientation, and the center of the item cannot be aligned with ...

AI Technical Summary

Problems solved by technology

This type of gripper only has the function of grasping and transferring the object, and does not further limit the gripping of the object, and the object is easily affected by the inertia of acceleration or deceleration during the transfer process. The holding center does not coincide with the center of the object, and the object is very easy to drop, which will greatly affect the production efficiency of the processing, and it is easy to damage the held object

[0003] In addition, for grippers that only have a gripping effect, after the gripper grabs the item for transfer, the placement of the item is only in a rough orientation, and the center of the item cannot be aligned with the center of the desired placement, such as placing a cylinder When the workpiece is grasped and transferred, and installed in the corresponding mounting hole, after the cylindrical workpiece is transferred, the worker needs to position and install the workpiece and the mounting hole, the labor intensity of the worker is high, and the processing efficiency is low

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