The Developments of the Performance Measurement System for Precision Machine Tools

• Main Authors: Tung-Hui Hsu, 徐東暉
• Other Authors: Wen-Yuh Jywe
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/7ttj3a

碩士 === 國立虎尾科技大學 === 動力機械工程研究所 === 92 === 3 precision machine tools measurement systems, 3-ball bar measurement system, double readheads planar encoder system and a plane encoder 3-dimensional measurement system are developed for measuring the performance of precision machine tools. 3 balls bar measurement system is made up of 3 sets of magnetic telescoping bars. The relative disp lacement between the two balls can be measured by using the ball bar. By measuring the relative displacement between the precision machine tools spindle and reference points using ball bars and the triangulation method, setup errors can be eliminated and 3-dimensional signals can be achieved so as to measure the performance of measuring machine tools. This system is characterized by fast measurement, low cost, high accuracy, being able to obtain 3 axis signals, measuring particular areas and being portable. Double readheads planar encoder system is the combination of single plane encoder and two 2-dimensional readheads. Four signals are sampled by using two readheads. The 21 errors of the precision machine tools can be obtained by measuring in accordance with the calculated model and the various specified test paths. This system is characterized by being easy to setup, high accuracy, low cost, fast measurement and large measurement range. Plane encoder 3-dimensional measurement system is made up of a plane encoder and a magnetic telescoping ball bar The signals of X axis and Y axis are obtained by using the plane encoder and the signal of Z axis is obtained by using the ball bar This system is characterized by its ability to achieve 3 axis signals, setup ease, high accuracy, low cost and fast measurement.