The Develop And Manufacture On Special Purpo Se CNC Lathe For Machining PTFE Wearing Strip

Special purpose machine is utilized to special work part and special process, which is an indispensable machine type in automatic production line. With the production technology growing, a lot of mechanical equipments in most part of enterprises in our country are idle old equipments. It is greater meaning to make technology reform on these equipments to meet the new demand of production. To retrofit equipments need very strong comprehensively mechatronics integration to stimulate enterprises better survive and development and bring revolution of the manufacturing industry.The paper is belong to research field of reconstruction of machine technique, the topic sourced from the project of Trelleborg sealing solution (China) LTD. Through the technical reform on mechanical drive system and electric control system of a common CNC lathe that make the machine to be a special purpose machine. This technique reform involved a lot of fields, of which are machine; process; fixture; cutting tool; material of work part and auto control and so on. It is a better topic with highly applied value. Reference the similar machine of Denmark works to make technique retrofit based on the Shenyang common CNC lathe.The topic is aimed to solve the problem of low efficiency, bad accuracy and high demand on workers technical level when processing PTFE wearing strip on common CNC lathe, through the technical reform on mechanical drive system and electric control system of a common CNC lathe:retrofit the main drive system of the machine, amplify the torque of main spindle at low speed and lift center height of the spindle to fit0250mm diameter PTFE work part, add a set of hydraulic tailstock and hydraulic chuck and automatic coiling mechanism and so on. Via accuracy calculation and adjustment, an idle old common CNC lathe is refit into one special function equipment to process PTFE wearing strip. The refit machine promoted its processing accuracy and level of automatic control of the parts and greatly improved the productive efficiency and it has the following characteristics:less investment, high efficiency, less retrofit workload, short period of manufacturing and testing, high utilization rate of old equipment, it is of practical importance to the enterprises.