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这里刊登的是近两年来国家标准局和机械工业部批准发布的组合机床国家标准和部标准(为了节省篇幅,略去了各标准的封面以及附加说明部分)。其中,部标准JB3036～3048—82,是根据技术标准出版社的正式版本排印的,国家标准GB3668.1～3668.13—83和部标准JB3195～3198—83尚未出版,这里是根据标准审定稿排印的,今后一律以中国标准出版社的正式版本为准。 一、关于尺寸标准 (1) GB3668.1—3668.13—83 我国曾在1975年和1978年先后发布过两批组合机床通用部件尺寸标准(部标准),即JB1521～1533—75《组合机床通用部件》和JB2462～2468—78、JB2502～2520—78《组合机床通用部件》。这两批标准是在七十年代的历史条件下,参照国外一些主要机床生产国的国
Here is published in the past two years, the National Bureau of Standards and Machinery Industry issued a combination of machine tool national standards and ministerial standards (in order to save space, omission of the standard cover and additional instructions section). Among them, the Ministry of standard JB3036 ~ 3048-82, is based on the official version of the technical standards Press typographical, national standards GB3668.1 ~ 3668.13-83 and the Ministry of Standards JB3195 ~ 3198-83 not yet published, here is based on the standard version of the draft approval , The future shall be the official version of China Standard Press prevail. First, on the standard size (1) GB3668.1-3668.13-83 China has in 1975 and 1978 has released two sets of combined machine parts size standard (Ministry standard), that is, JB1521 ~ 1533-75 “combined machine tool common parts ”And JB2462 ~ 2468-78, JB2502 ~ 2520-78“ universal machine tool components. ” The two groups of standards in the seventies under the historical conditions, with reference to some foreign countries the main machine tool producer of the country