Floating grinding method and fixture

Abstract

The invention discloses a floating grinding method and fixture; the floating grinding fixture comprises a lathe spindle clamping jaw, a grinding rod, a floating grinding fixture and a lathe tool rest; the lathe spindle clamping jaw clamps the grinding rod for rotating; the floating grinding fixture comprises a motor, a frequency converter, a magnetic rotating head and a speed control switch; the motor is electrically connected with the frequency converter; the magnetic rotating head is mounted on a front end of a main shaft of the motor; the floating grinding fixture is mounted on the lathe tool rest; the lathe tool rest reciprocates in a straight line to drive the floating grinding fixture to move; the magnetic rotating head is coaxial and consistent with an axis of the grinding rod clamped by the lathe spindle gripping jaw; the magnetic rotating head of the grinding fixture is opposite to the grinding rod in rotating direction, and moves at a constant speed; a workpiece ground is in magnetic floating connection with the magnetic rotating head of the floating grinding fixture, and thus is driven by the magnetic rotating head to rotate; a surface of an inner hole of the workpiece is in uniform contact with the grinding rod in a circumferential direction; the workpiece ground is in magnetic floating connection with the magnetic rotating head of the floating grinding fixture, and when grinding is abnormal or resistance increases, the magnetic connection is automatically broken.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a floating grinding method and tooling, in particular to an ultra-high-precision floating grinding method and tooling, which are especially suitable for grinding inner holes. Background technique [0002] Grinding is the use of abrasive particles coated or pressed on the grinding tool to finish the processing surface through the relative movement of the grinding tool and the workpiece under a certain pressure. Grinding the inner hole is one of the types of grinding. Efforts to avoid defects such as inner hole ellipse, unqualified cylindricity, uneven grinding contact, poor surface roughness, and scraps caused by grinding have always been the technical subjects of exploration and research by engineers and technicians in this field. ; In the past, engineers and technicians researched and explored more thinking on the formulation of abrasives and technical parameters. ...

AI Technical Summary

Problems solved by technology

[0004] The invention discloses a floating grinding method and tooling to solve the problems in the prior art that the surface roughness of the grinding inner hole is not good, the inner hole produces an ellipse and a cone hole, the grinding causes waste products, and the operator is easily injured when grinding to death.

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