Error measurement and assemble error correction of a 3D-step-gauge

2007年第2卷第4期

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《机械工程前沿（英文）》 >> 2007年第2卷第4期 doi: 10.1007/s11465-007-0067-x

Error measurement and assemble error correction of a 3D-step-gauge

National CNC Control System Research Center, School of Mechanical Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China;

发布日期： 2007-12-05

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摘要

A new artifact called 3D-step-gauge consisting of a pyramid array and a compound, is proposed to calculate geometrical errors for machine tools. Only one point on each profile of the pyramid in the array is probed, and its center coordinate can be calculated. Then, the intervals of the pyramids can be transfered a length standard to measure errors. Considering the differences in the structural parameters and the location of the pyramids, a volumetric error measurement method of discrete points is presented. Furthermore, the location errors between the calibration state and the measurement state are studied and their influences on the accuracy of the position measurement are investigated on an actual machine tool. The 3D-step-gauge was tested on an actual machine tool and the measurement result shows quick assembly, convenient measurement, and high accuracy.

关键词

volumetric ; pyramid ; assembly ; accuracy ; calibration