在工艺编制和实际操作中,大型零件因重力而引起的弹性变形的因素往往被人忽略。本文就这个问题谈一点体会,以提高大型零件的加工精度。 对于大型零件来说,其内部筋板布置复杂,且毛坯在铸造、焊接、时效后的表面状况各异(如弯曲、扭曲等)。要事先计算出装夹过程中重力对零件弹性 In the process of preparation and actual operation, large parts due to gravity caused by elastic deformation factors are often neglected. This article talk about this issue a little experience, in order to improve the machining accuracy of large parts. For large parts, the internal rib layout is complex, and the blank in the casting, welding, aging surface conditions (such as bending, twisting, etc.). To calculate the pre-clamping process of gravity on the part flexibility