Transformation of fourth axis of CNC2150 vertical gantry machining center

FAN Fanghong1, LOU Xiangming2
（1.Machinery & Electric Department, Hunan Railway Professional Technology College, Zhuzhou 412001,
China; 2.Hangzhou Wahaha Group Co., Ltd., Hangzhou 310018, China)

Abstract: In order to solve the problems of linkage of four axes on threeaxis CNC2150 vertical gantry machining center, modification techniques of added fourth axis on the machine were applied to functional expansion of CNC machine. The configuration of system was investigated. The relationship between electrical circuit of the Aaxis and control program of PMC was established. The method of Aaxis PMC program embedded system program was shown. The inspection of Aaxis precision and product processing was accomplished. The experimental results show that the accuracy of Aaxis meets the standards of industry, the quality of product is up to standard, and the linkage of four axes is achieved. By setting and commissioning the A axis parameters and control procedures, the operation of the Aaxis is stable and reliable, and the Aaxis and original machine axis are linkage.
Key words: CNC2150; vertical gantry machining center; linkage of four axes; transformation; control program; industry standards