往复走丝电火花线切割机床恒张力机构的形式及发展趋势

The Type and Its Trend of Constant Tension Control Mechanism on Wire Electrical Discharge Machines

往复走丝电火花线切割机床要获得高精度、高效率、高表面质量的切割水平,除了需要高效智能的脉冲电源外,还必须具备稳定可靠的恒张力装置,以保证高速往复运行的电极丝始终保持恒定的张力。通过结构对比,浅析了几种恒张力控制机构的特点及应用现状,并阐述了智能化恒张力控制技术的发展前景。

To obtain high precision, high efficiency and high surface quality workpiece,in addition to efficiency and intelligent pulse power supply,reciprocating traveling wire electrical discharge machine must also have stable and reliable constant tension control mechanism,so that wire reciprocating traveled retain always constant tension. By contrast experiments,the characteristics and application status of several constant tension control mechanisms are analyzed,and the prospect of the intelligent tension control technology is expouded.