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由于重庆机床厂原西德进口的一台HSF33A滚刀铲磨床随机配带的三个指状砂轮磨头,经长期使用,精度丧失不能再使用,致使大螺旋角多头蜗轮滚刀无法磨削,严重影响生产。一九七七年六月,部局领导指示广州机床研究所研制一种新磨头来代替原磨头以满足生产需要。广州机床研究所接受了部局下达的这项任务,研制了30000转/分及50000转/分两种空气透平静压高速磨头,并由重庆机床厂配制供气系统装置,经用于生产试磨
As a result of long-term use, the loss of precision can not be used again due to the long service life of one HSF33A Hobbed Grinder imported from Chongqing Machine Tool Plant, which is imported from West Germany. As a result, the large helix angle hob hob can not grind, Seriously affect the production. In June 1977, the leaders of the ministry bureau instructed Guangzhou Machine Tool Research Institute to develop a new grinding head to replace the original grinding head to meet production needs. Guangzhou Machine Tool Research Institute accepted the ministry issued this task, developed a 30,000 r / min and 50000 r / min two air turbine hydrostatic high-speed grinding head, and by the Chongqing Machine Tool plant preparation of gas supply system, used for the production test mill