REVIEW ARTICLE


Reformation and Commissioning Research on Closed-Loop Control of Y Axis CNC Milling Machine



Tang Guolan*, 1, Wu Yunzhong2
1 Guangdong Songshan Polytechnic College, Shaoguan, Guangdong, 512126,P.R. China
2 Shaoguan Iron & Steel Co. Ltd, Shaoguan, Guangdong, 512123,P.R. China


© 2015 Guolan and Yunzhong

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Mechanical Engineering, Guangdong Songshan Polytechnic College, Shaoguan, Guangdong, 512126, P.R. China; Tel: 18927893526; E-mail: 99334289@qq.com


Abstract

Considering its working stability, semi-closed loop control is usually used in middle - grade CNC machine tool. But in the control,processing quality and machining precision are seriously affected by wear, hot variant, screw error and backlash of machine driven system. In order to improve them, reformation processing on closed-loop of Y axis in THWMZT-1B CNC milling machine is introduced, such as connecting and installing hardware, setting parameters and backlash compensating. After commissioning it is satisfying that repeated positioning accuracy can reach 0.001mm.

Keywords: Backlash compensating, Closed-loop control, Grating scale, Parameter, Speed control, Current control.