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某台WD-160落地镗床是捷克60年代的产品。该设备电气部分陈旧老化,元器件更换难度大,进入90年代后已处于瘫痪状态,用简单的维修手段无法恢复其性能。但因机械部分精度尚好,通过电气部分的全面改造,完全可以恢复其原有的性能。 一、改造方案选择 该WD-160镗床原主传动采用机组调速,主轴、横梁、立柱进给均采用转子供电式三相并励交流换向器电动机(即整流子电机)。电气部分的改造包括如下几方面。 1.采用北京机床研究所开发的可控硅直流错位无环流调速系统代替原主传动系统,但保留直流电机。 2.三坐标进给部分用日本法纳克直流伺服装置替代原整流子电机进给系统,配上海南洋电机厂生产的Z4型仿西门子电机。
A WD-160 floor boring machine is the Czech 60’s products. The electrical parts of the aging equipment aging, component replacement difficult, into the 90’s has been paralyzed, with a simple maintenance methods can not be restored to its performance. However, due to the accuracy of the mechanical part is still good, through the electrical part of the full transformation, it is entirely possible to restore its original performance. First, the transformation program options The WD-160 boring machine original main drive using unit speed, spindle, beam, column feed are used rotor-fed three-phase shunt commutator motor (ie commutator motor). The electrical part of the transformation include the following aspects. 1. The Beijing Institute of Machine Tools developed by the SCR DC offset non-circulated speed control system instead of the original main transmission system, but to retain the DC motor. 2. Three-axis feed part of the Japanese Fanuc DC servo device instead of the original commutator feed system, coupled with the Shanghai Nanyang Electric Factory Z4 imitation Siemens motor.