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在一机部华北试点组领导下,由唐山市电工机械厂、北京电机厂、天津市电机厂、石家庄地区电机厂和我院有关的工人、技术人员、领导干部组成了三结合小组,经过比较短时间的积极努力,设计并试制成功TW6～7,TW8～9型电机机座粗镗床的样机,经鉴定性能良好。本机床系专门用来加工JO2#6～#9电动机机座的内孔、空挡、止口、两端面的粗加工。
Under the leadership of North China Pilot Unit of a machine department, the three combination teams of workers, technicians and leading cadres from Tangshan Electrical Machinery Factory, Beijing Motor Factory, Tianjin Motor Factory, Shijiazhuang Motor Factory and our hospital, after comparison A short time of active efforts to design and trial success TW6 ~ 7, TW8 ~ 9-type motor base rough boring machine prototype, the identification of good performance. The machine tool is specially designed for roughing the inner hole, neutral block, stop hole and both end surfaces of JO2 # 6 ~ # 9 motor base.