Clamping structure for fastening motion self-compensation

Abstract

The invention discloses a clamp structure for clamping and autocompensation; a clamping block (3) is arranged on a clamp; the surface of the clamping block (3) for clamping a workpiece is a clamping surface (4); and the clamping block (3) is made of an elastic material. With the technical proposal adopted, abrasion occurring in a clamping part and the change of the surface of the clamped workpiece are subjected to compensation by a simple elastic structure so as to ensure that a gripping jaw has enough clamping force in clamping and to guarantee the dimension of the workpiece after various machining processes (such as welding).

Description

technical field

[0001] The invention belongs to the technical field of mechanical processing equipment, and relates to a clamping and positioning device for workpieces. More specifically, the invention relates to a clamping structure with automatic clamping compensation. Background technique

[0002] In industrial production, especially in machinery manufacturing industrial production, various fixtures are widely used to clamp and position the workpiece to be processed. For example, in the automobile manufacturing industry, the quality control of the body-in-white involves welding strength and welding size. Among them, the welding size is mainly guaranteed by the clamping and positioning of the welding fixture, and the six degrees of freedom are limited by positioning and clamping. Stabilize the relative position between panels. When any problem occurs in clamping and positioning, under-positioning will occur, which may lead to changes in the welding size of the car body an...

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