摘要
为了减小薄板件铣削加工的平面度误差,采用双点压板对工件进行夹紧。通过分析双点压板对工件铣削变形的作用规律,分别设计了仿真试验与切削试验对双点压板的作用进行验证,并与传统装夹方式下的工件加工后平面度进行对比。试验结果表明,采用双点压板装夹时,夹紧力引起的工件弹性变形与切削力引起的工件弹性变形相反,并且在切削过程中,夹紧力能够抑制切削力引起的工件弹性变形,有利于保证已加工表面的平面度。
To reduce the flatness error of thin part milling,dual-point clampers were used to clamp the workpiece in this paper. Based on the effect analyzing of workpiece milling flatness constrained by dual-point clamper,a simulation experiment and a cutting experiment were carried out respectively. The flatness errors under the two situations were compared with the traditional clamping scheme,which showed that the elastic deformation caused by cutting force and clamping force were in opposite directions. During milling,the two points of force application of the dual-point clamper shared the clamping forces and their values changed cooperatively along with the cutting tool movement to resist the workpieces deflection,which improved the flatness of the machined surface.
出处
《工具技术》
北大核心
2015年第4期77-81,共5页
Tool Engineering
基金
国家自然科学基金(51175304)
关键词
薄板件
平面度
双点压板
铣削
thin part
flatness error
dual-point clamper
milling
