Large-Field Error Measurement System for Laser Machine Tools

• Main Authors: Hsu-Hung Wei, 魏旭宏
• Other Authors: Ming Chang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/33007916541071887601

碩士 === 中原大學 === 機械工程研究所 === 98 === This paper focuses on the development of a cost effective large-field error measurement system for laser machine tool in the non-traditional three-axis machining system. It uses a laser diode and position sensing detector as the main components for error measurement. The laser diode driving circuit and position sensing detector sensing circuit are self-developed, therefore can replacing commercial high cost sensor modules to achieve targets ease of use, low cost, large-field and high-precision measurement, et cetera. This study uses such an error measurement system to detect the straightness and flatness of a laser machining tool, and using the system to construct a three-dimensional error map of the laser machining tool. The measurement precision of the system can reach up to 1 μm, and the measurement results can be used for the calibration of the machine tool, even supporting engineers in investigating the error sources of machine tools. Currently, it is actively used in the error measurement and calibration of long travel range bridge type machine tools.