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电机定、转子冲片精度有一定的技术要求。由单槽冲床生产的冲片往往会有错槽现象,最大的错槽达1 mm左右,严重影响了电机质量。造成槽形错位的原因有: (1) 分度盘本身精度所引起的误差; (2) 定位盘重复精度低所引起的误差; (3) 工装定位方式所引起的误差; (4) 工装时使用的定位心轴、销、键及定位盘的硬度低,耐磨性差所引起的误差。鉴于这些原因,可采取相应的改进措施: 1.在分度盘本身精度无法提高的情况下,着重提高分度盘的重复精度。根据冲床本身精度的规定,在每冲制一定数量的冲片
Motor fixed rotor punching accuracy of a certain technical requirements. Punches produced by a single slot punch tend to have a wrong slot, with a maximum error of about 1 mm, seriously affecting the quality of the motor. The causes of the dislocation of the groove are: (1) the error caused by the accuracy of the indexing plate itself; (2) the error caused by the low precision of the positioning plate; (3) the error caused by the positioning of the tooling; (4) The use of positioning mandrels, pins, keys and positioning plate hardness is low, poor wear resistance caused by the error. For these reasons, the corresponding improvement measures can be taken: 1. With the precision of the indexing plate itself unable to be improved, the repeatability of the indexing plate should be emphasized. According to the accuracy of punch itself, every punch a certain number of punch