基于二次正交回归的活塞杆粗车参数优化

Parameter optimization of piston rod rough turning based on two orthogonal regression

以活塞杆粗车为研究对象,建立了活塞杆车削力学模型。为解决活塞杆粗车过程中由于切削参数影响切削力大小从而产生车削径向弯曲变形问题,利用二次正交回归设计对影响切削力的切削参数进行优化,并利用有限元软件进行优化校验。优化结果表明:活塞杆车削过程中,选择合理切削参数能让车削产生的径向弯曲变形量降到最低,从而提高粗车加工质量。

Based on the piston rod rough vehicle, the mechanical model of piston rod turning is established. In order to solve the prob- lem of piston rod roughing process because the effects of cutting parameters of cutting force result in the radial deformation of bending in turning, cutting parameters of cutting force were optimized by using two orthogonal regression design and verification was optimized by u- sing the finite element software. The optimization results show that the reasonable cutting parameters can reduce the radial bending de- formation of the piston rod in the turning process of the piston rod, thus improving the quality of rough machining.