This standard establishes (1) American practice for the construction of spindle noses for horizontal boring machines by showing a number of types of such construction, (2) the important dimensions for self-holding and steep machine tapers as well as drive keys, draw bolts, drift and keeper key slots, bolt circles for face mounting of milling cutters, etc., (3) the corresponding dimensions for the taper shanks for construction of tools (boring bars, arbors, etc.) to fit the spindle nose tapers. The purpose of such construction is to provide an accurately machined stocket to locate tools with means to positively hold them in positions in the spindle as well as with means to positively drive the tools.
ASME B5.40-1977由美国机械工程师协会 US-ASME 发布于 1977。
ASME B5.40-1977 在中国标准分类中归属于: J54 钻、镗、铣床,在国际标准分类中归属于: 25.060.20 分度和刀具/工件夹持装置,25.080.40 钻床。
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