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Proceedings Paper

Spindle parallelism adjustment technology based on discharge sensing
Author(s): Weiran Yuan; Yongbin Zhang; Guangmin Liu; Bo Hu; Jianyuan Li
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Paper Abstract

For precise micro-EDM machine tools with high-speed pneumatic spindle, the parallelism between the axis of rotation and the existing Z axis directly determines the machining accuracy of tool electrode and workpiece, so it is necessary to adjust the parallelism between the rotary axis of the pneumatic spindle and the Z axis. Due to the small diameter and low rigidity of the tool electrode, the traditional contact metering method is difficult to apply. Therefore, based on the principle of micro-energy pulse discharge sensing, the diameter and center coordinates of the tool electrode are measured in different tool electrode sections, and the tilt between the pneumatic spindle and the Z-axis is calculated. Based on principle, the posture of the spindle is fine-tuned. This can easily and quickly adjust the parallelism between the pneumatic spindle and the Z-axis. Finally, the parallelism error of the measuring section is successfully controlled within 0.0015 mm.

Paper Details

Date Published: 13 November 2019
PDF: 9 pages
Proc. SPIE 11343, Ninth International Symposium on Precision Mechanical Measurements, 1134324 (13 November 2019);
Show Author Affiliations
Weiran Yuan, China Academy of Engineering Physics (China)
Yongbin Zhang, China Academy of Engineering Physics (China)
Guangmin Liu, China Academy of Engineering Physics (China)
Bo Hu, China Academy of Engineering Physics (China)
Jianyuan Li, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 11343:
Ninth International Symposium on Precision Mechanical Measurements
Liandong Yu, Editor(s)

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