Self-positioning fixture

Abstract

The invention relates to a self-positioning fixture. The self-positioning fixture comprises a U-shaped seat frame body [11], a lifting device and a clamping device, wherein the lifting device comprises a screw [8], a nut [7], two carrier rods and a carrier rod seat; one end of the screw [8] is fixedly connected to the middle of the seat frame body [11]; on the carrier rod seat, two transverse rods [9] are fixedly connected to the two side faces of a shaft sleeve [6] symmetrically; the shaft sleeve [6] is sleeved on the screw [8]; a through hole is formed on the two sides of the seat frame body [11] respectively; the two carrier rods are positioned in the through holes; the two transverse rods [9] are connected with the lower ends of the two carrier rods respectively; the clamping device comprises two clamping blocks [5] and two rotating levers [3]; the two clamping blocks [5] are fixedly connected to the upper ends of the two carrier rods respectively; and each clamping block is hinged with one end of each rotating lever [3], and the other end of each rotating lever [3] is hinged with the upper parts of the two sides of the seat frame body [11]. The self-positioning fixture can clamp and position workpieces, so machining accuracy and machining efficiency are greatly improved.

Description

technical field [0001] The invention relates to a clamp, in particular to a pair of self-positioning clamps. Background technique [0002] Fixtures are widely used in factories. The function of the fixture is to fix the workpiece to be processed and then machine it. The shape of the workpiece is various, so the structure of the fixture is also various. It is often encountered in factories that L-shaped or strip-shaped workpieces need to be clamped on the side for punching or other processing. Although the existing fixtures have the clamping function, they often need to be positioned before they can be processed. Because the fixture does not have Self-positioning function, so there is often a large deviation after processing. At the same time, it takes time during the positioning process, thus greatly reducing the processing efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a self-positioning fixture to improve machining a...

AI Technical Summary

Problems solved by technology

It is often encountered in factories that L-shaped or strip-shaped workpieces need to be clamped on the side for punching or other processing. Although the existing fixtures have the clamping function, they often need to be positioned before they can be processed. Because the fixture does not have Self-positioning function, so there is often a large deviation after processing

At the same time, in the positioning process, it takes time, thus greatly reducing the processing efficiency

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