The Open Mechanical Engineering Journal

2015, 9 : 613-617
Published online 2015 September 16. DOI: 10.2174/1874155X01509010613
Publisher ID: TOMEJ-9-613

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

Tang Guolan and Wu Yunzhong
Department of Mechanical Engineering, Guangdong Songshan Polytechnic College, Shaoguan, Guangdong, 512126, P.R. China.

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.