论文部分内容阅读
对加工面的相互位置精度提出严格要求是箱体零件的加工特点。工件在自动线上从一个工位输送到另一个工位的多工序加工过程中要保证这些要求。 研究现有自动线上箱体零件的安装情况得出:实际安装误差远远大于计算值,而在精加工工序中则近似于允许值。这就是在自动线上加工箱体零件孔和平面空间位置精度难以保证的主要原因之一。 一般来说,安装误差包括定位误差(在定位过程中毛坯相对刀具定向)、由于夹紧力引起的夹紧误差以及夹具元件制造不精确
On the processing of the mutual accuracy of the proposed position is the processing of parts of the box features. The workpieces are guaranteed in the multi-process machining of automatic line transfer from one station to another. Studying the installation of the existing automatic on-line box parts results in that the actual installation error is much larger than the calculated value, while in the finishing process, the allowable value is approximated. This is one of the main reasons why it is difficult to guarantee the accuracy of the positions of the hole and the plane space of the box parts automatically on the line. In general, installation errors include positioning errors (orientation of the blank relative to the tool during positioning), clamping errors due to clamping forces, and inaccuracies in the manufacture of the clamp components