In order to study the specific structural rigidity for the fixture body of the multi-piece clamping of a certain car brake pump cylinder block,a multi-piece clamping fixture model is established by using UG software,and the specific structural deformation of the two types of clamping without and with a pull rod is compared through ANSYS finite element analysis.The results show that the specific structural deformation of the clamp with a pull rod is smaller than that without a pull rod,and the amount of clamping deformation can be effectively controlled.Based on this,a symmetrical multi-piece clamping device is designed,which does not need to consider the specific deformation of the clamp during clamping,but only needs to focus on the deformation of the workpiece being clamped,simplifying the overall structure of the clamp.In multi piece clamping fixtures,priority is given to the specific structural design of symmetrical clamps,followed by the specific structural designof pull rod clamps.The research results can provide reference for enterprises to design specific structures of multi-piece clamping devices.
关键词
有限元分析/多件装夹/夹具体结构/装夹变形
Key words
finite element analysis/multi-piece clamping/fixture body structure/clamping deformation