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加工象链轮、槽轮,刨磨正多边体,钻、镗均布孔等需要分度的零件,当它们不能用单式分度,并且对分度精度要求较高时,常常要用单分度头复式分度法。一些专业手册和专业技术书中给出的一些复式分度表,存在精度较低或分度手柄的两次转向相反等缺点。笔者针对这种情况,通过计算,筛选出适用于国产FW系列分度头的复式分度数据,制作了一个复式分度表。该表比现行表作了下列改进: 一、分度精度较高表中的周节累计误差,即最后一个分度周节的误
Machining parts such as sprockets, sheaves, planing polygons, drills, and even holes that need indexing. When they can not be indexed singly and require a high degree of indexing accuracy, they often require a single Indexing head duplex indexing method. Some professional manuals and technical books given in some of the multi-indexing table, there is a lower precision or indexing handle the opposite of the two shortcomings. In response to this situation, through the calculation, the author screened the multichannel indexing data suitable for the domestic FW series indexing heads, and produced a duplex indexing table. The table than the current table made the following improvements: First, the high precision indexing week cumulative table error, that is, the last quarter of a week error