Special clamp for cylindrical workpiece

Abstract

The invention belongs to the technical field of clamps, and particularly relates to a special clamp for a cylindrical workpiece. The special clamp comprises a middle clamp and an execution clamp, wherein the execution clamp is connected with an inherent clamp on a machine tool through the middle clamp. The clamp designed by the invention can be suitable for the cylindrical workpiece with a small thickness, and the inner wall and the outer wall of the workpiece are fixed at the same time through three inner clamping plates and three outer clamping plates in a using process, so that the fastening effect can be improved; and under the condition of the same fastening effect, the clamping force of the clamp on the workpiece can be relatively reduced, so that the situation that the workpiece isdamaged by clamping is prevented to a certain extent. Three fastening mechanisms are designed in the special clamp, and after three mounting shells are fixed relative to the position of an execution clamp shell, the three mounting shells play a role in fixing and limiting through the three fastening mechanisms, so that the stability of the clamp for clamping the workpiece is guaranteed.

Description

[0001] Technical field [0002] The invention belongs to the technical field of fixtures, in particular to a special fixture for cylindrical workpieces. Background technique [0003] Fixtures refer to fixtures used to process workpieces in machining. [0004] For workpieces with a cylindrical structure, in machining, the traditional triangular chuck is generally used to clamp the inner or outer circle of the workpiece; but for thinner workpieces, no matter whether it is through the outer Whether it is circular clamping or inner circle clamping, if the clamping force is not properly controlled, the workpiece may be clamped; it will affect the appearance and the later work, but in order to prevent the clamping of the workpiece, if the clamping force is reduced, the high-speed movement of the workpiece During the process, there will be a phenomenon of falling off, accidentally injuring the machine or the staff. [0005] The existing technology will use a layer of gaskets with e...

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Problems solved by technology

[0004] For workpieces with a cylindrical structure, in machining, the traditional triangular chuck is generally used to clamp the inner or outer circle of the workpiece; but for thinner workpieces, no matter whether it is through the outer Whether it is circular clamping or inner circle clamping, if the clamping force is not properly controlled, the workpiece may be clamped; it will affect the appearance and the later work, but in order to prevent the clamping of the workpiece, if the clamping force is reduced, the high-speed movement of the workpiece During the process, there will be a phenomenon of falling off, accidentally injuring the machine or the staff

[0005] The existing technology will use a layer of gaskets with equal thickness on the inner or outer circle of the workpiece, but this will easily cause the workpiece to slip due to friction on the one hand, and on the other hand, if the gasket is worn, the axis of the workpiece will be out of alignment. The misalignment of the axis of the fixture affects the machining accuracy

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