A fixture for an external grinder

Abstract

The present invention is applicable to the field of machine tools, and provides a fixture for cylindrical grinding machines, including a clamping device, a driving device, an outer shell, and an inner shell, and the driving device includes a first drive plate, a first drive shaft, a first rotating shaft, and a second drive plate , the second drive shaft; the first end of the first drive plate is fixed on the main shaft of the machine tool; the other end of the first drive plate is slidably connected to the first end of the second drive plate through the first drive shaft, and the second drive The plate is rotatably connected to the outer shell through the first rotating shaft; the first end of the second drive shaft passes through the outer shell and is fixedly connected to the inner shell, and the second end is slidably connected to the second end of the second drive plate; the clamping device includes Three drive claws evenly arranged in the circumferential direction, the middle part of the drive claw is rotatably connected to the inner shell through the second rotating shaft, and the non-clamping end of the drive claw is slidably connected to the outer shell through the third drive shaft; the inner shell and the outer shell can rotate relatively . The fixture makes the clamping of the workpiece convenient, and it is not necessary to perform phase positioning of the workpiece before the clamping.

Description

technical field [0001] The invention relates to the technical field of machine tools, in particular to a clamp for a cylindrical grinding machine. Background technique [0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding, and a few use other abrasive tools such as oil stones and abrasive belts and free abrasives for processing, such as honing machines, superfinishing machine tools, abrasive belt grinders, grinding machines and polishing machine etc. [0003] When the existing cylindrical grinding machine is processing the shaft workpiece, the two ends of the shaft workpiece are usually tightened by the top, and then the workpiece is driven by a driving device for grinding. Generally, drive devices such as chicken heart clips are selected for manual operation. When using automated processing, it is necessary to carry out simple, convenient and fast clam...

AI Technical Summary

Problems solved by technology

The usual clamping method is to rotate the workpiece by means of special structures such as grooves or protrusions on the part. In this way, the phase of the workpiece needs to be positioned before clamping, which will undoubtedly bring about process, beat, and errors. rate and cost increase

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