Clamp

Abstract

The invention provides a clamp. The clamp comprises a shell and a spiral disc; the shell comprises a clamping jaw movable cover, and further comprises a positioning sleeve detachably connected with the clamping jaw movable cover, and the positioning sleeve is provided with a plurality of sliding blocks capable of sliding in the circumferential direction; the clamping jaw movable cover is provided with screws capable of being in matched connection with the sliding blocks, and the clamping jaw movable cover and the positioning sleeve are in axial fixation through the screws; and the end face, in contact with the clamping jaw movable cover, of the positioning sleeve is provided with a positioning assembly playing a role in circumferential fixation of the clamping jaw movable cover and the positioning sleeve, and the screws can enable spiral teeth and spiral grooves to keep in linkage fit when the clamping jaw movable cover circumferentially rotates on the positioning sleeve. By means of the clamp, clamp modularization combination is achieved, assembling and disassembling are convenient, the clamping jaw clip distance is conveniently adjusted, the clamping jaw movable cover can be replaced, and the clamp integrating a clamp air cylinder can be achieved.

Description

technical field [0001] The invention relates to a fixture, in particular to a fixture suitable for machines such as bench drills, vertical drills, milling machines, and numerical control engraving and milling. Background technique [0002] Fixtures are used in mechanical lathes to clamp workpieces and then process them. The structure of the existing lathe clamps generally includes a jaw movable cover and a spiral disk. A through hole is arranged in the center of the jaw movable cover, and a walking rail connected with the through hole is arranged on the cover surface of the jaw movable cover. Claws are provided for sliding on the walking rail, and the back of the claws are provided with helical tooth grooves that are helically matched with the helical disk. Through the rotation of the spiral disc, the claws can slide toward each other or relative to each other in the traveling rail, so as to realize the clamping and unloading of the workpiece. [0003] The applicant earlie...

AI Technical Summary

Problems solved by technology

Although this fixture greatly reduces labor intensity, improves the clamping and unloading efficiency of the workpiece, and the clamping distance is adjustable, there are still deficiencies: first, the installation and disassembly of the fixture are troublesome, and the replacement and maintenance of parts are inconvenient; , the adjustment of the clamp distance of the fixture is not fast and convenient; in addition, the movable cover of the jaws of the fixture cannot be replaced online, and when it needs to be replaced, the entire shell and internal parts need to be disassembled and replaced, which is inconvenient to operate

Images