Control design of multi-station machine tool for aerospace special-shaped fastener processing

Aimed at the problems of process dispersion, low processing efficiency and precision,and poor consistency of finished products in the production of inner hole of special-shaped fasteners in the aerospace field,a multi-station special machine tool with ZMC406 motion controller as the control core is designed and developed.The machine tool is made up of mechanical structure,pneumatic system and electrical control system.The general requirements of the control system, each control system module, software and hardware design of the control system are described.Through the touch screen of the integrated industrial control machine with EtherCAT as the communication protocol to control the machining action of the machine tool and set the processing parameters, the centralized and automatic processing of the inner hole of the special fastener is realized.The actual processing and trial production results of the machine tool show that the production cycle of the machine tool is 8 pcs/min, and the pass rate is more than 99%. The machining precision and efficiency of the special-shaped fastener are improved, and the product consistency is good. Certain application and promotion value is included in the manufacturing field of aerospace special-shaped fastener.