Abstract
Based on the analysis of the mechanical structure principle of multi-wire saw, the wire-supplying system model is studied from a point of view of kinematics and factors that influence wire tension is investigated to overcome the deficiency in traditional multi-wire saw tension control system. A mechanical and electrical wire tension control scheme is proposed, in which torque motor is used to produce tension on wire instead of hammer, and intelligent controller is designed by using adaptive inverse algorithm to reduce the speed synchronization trace error of multi-motor system; The scheme reduces the wire vibration intensity greatly. The hardware platform of tension control system based on field bus is designed and realized. The test results of XQ300A multi-wire saw prove the feasibility and reliability of the system. The control scheme features high precision and easy realization of tension control,low wire-broken fault rate and convenient tensioning.
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