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一、引言: 随着社会主义建设事业的迅速发展,科学技术也不断的提高,因此,越来越多地需要使用强度好、硬度高、耐腐蚀与耐磨损等新材料和新结构,但在加工方面按原来的金属切削加工工艺是难以解决的。根据这一要求,一机部在一九六四年按照“独立自主,自力更生”的方针,组织了科研、生产和用户三结合设计定型了电加工机床。设计的当时,主轴头的形式共6种:有双电机差动式、双电机继电器式、电—液压式、电磁悬浮
I. INTRODUCTION With the rapid development of socialist construction and the constant advancement of science and technology, new materials and structures such as high strength, high hardness, corrosion resistance and abrasion resistance are increasingly required In terms of processing the original metal cutting process is difficult to solve. According to this requirement, in 1964, a machine department organized scientific research, production and user design and processing of electroplated machine tools in accordance with the principle of “independence and self-reliance”. At the time of design, the spindle head in the form of a total of 6 species: a double motor differential, double motor relay type, electro-hydraulic, electromagnetic levitation