Method for compensating radial error of precise and ultraprecise grinding abrasion wheels and application of method for compensating radial error of precise and ultraprecise grinding abrasion wheel

Abstract

A method for compensating the radial error of precise and ultraprecise grinding abrasion wheels and an application of the method for compensating the radial error of the precise and ultraprecise grinding abrasion wheels belong to the technical field of precise and ultraprecise processing and aim to solve the problem which is caused by radial error and radial run-out in the prior art. The method comprises the following steps: the radius of the abrasion wheel is determined through a multi-measurement method; a central path of an abrasion wheel grinding process is determined according to the determined radius of the abrasion wheel; and the abrasion wheel with the determined abrasion wheel radius in the step 1 is ground along the central path of the determined abrasion wheel in the step 2. According to the method, the edge points of the abrasion wheel are randomly selected to determine a plurality of circle centers of the abrasion wheel so as to determine the radium of the abrasion wheel, so that the radius of the abrasion wheel is corrected, the surface precision of a processed element is ensured, and the processing precision is increased; and according to the method for compensating the radial error, edge point coordinates are determined when the abrasion wheel rotates at high speed, the distribution of circle center points is integrated to determine the radial run-out of the abrasion wheel to a certain extent, and the compensating process is further corrected.

Description

technical field [0001] The invention relates to a radial error compensation method of a precision ultra-precision grinding wheel and an application thereof, belonging to the technical field of precision ultra-precision grinding. Background technique [0002] Precision and ultra-precision machining technology has developed by leaps and bounds in recent years. The so-called precision ultra-precision grinding process is to use fine-grained abrasives and micropowder to process ferrous metals, hard and brittle materials, etc., in order to obtain high efficiency, high processing accuracy and low surface roughness values. In addition to the grinding machine itself, the key technology also plays an important role in the grinding process, among which the grinding wheel as a grinding tool plays a decisive role in the impact on the shape and surface quality of the processed surface. In the process of precision ultra-precision grinding, the grinding wheel rotates at high speed, and its...

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Problems solved by technology

[0003] University of Shanghai for Science and Technology discloses a grinding wheel wear measurement and processing error compensation device, including a grinding wheel stand, diamond pen, numerical control system, acoustic emission sensor, acoustic emission signal processing device; the diamond pen is used as a benchmark for positioning the grinding wheel, and is installed and fixed on the grinding machine bed The acoustic emission sensor is fixedly installed on the front of the grinding wheel frame and on the side of the grinding wheel frame. The output signal of the acoustic emission sensor is filtered and calculated by the acoustic emission signal processing device and then input to the numerical control system of the machine tool, which is used for the measurement of the wear amount of the grinding wheel and realized by the numerical control system. The automatic compensation of the wear amount can realize the automatic measurement and compensation of the wear of the grinding wheel on the CNC grinding machine; this method only focuses on the measurement of the wear of the grinding wheel, and does not study the grinding wheel as a whole; With the introduction of the grinding wheel, the degree of wear will not change significantly in the short term, so real-time automatic measurement and compensation is not necessary, and the processing cost is increased to a certain extent, and the error compensation cannot be well realized

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