基于恒功率约束的换挡毂数控铣削加工控制系统设计与实现

Design and Implementation of CNC Milling Control System for Shift Hub Based on Constant Power Constraint

【目的】汽车双离合变速箱(Double Clutch Transmission,DCT)的核心零部件换挡毂加工制造精度要求高,针对数控铣削工艺的非线性问题,通过优化切削参数,以提高生产效率及延长刀具寿命。【方法】以主轴负载恒功率为约束条件,设计一种基于模糊控制算法的铣削加工控制系统。采用CP1E N30作为主控制器、CX-programmer开发下位机程序、Kingview开发上位机系统,完成基于主轴功率信号反馈的智能控制器的开发。【结果】在XHK716加工中心机床上实现铣削工艺的恒功率控制,通过换挡毂粗铣B平面工艺过程的应用,可知实时功率保持在目标功率附近。【结论】该控制系统提高了铣削加工效率,实现了保护刀具的目标,对延长刀具寿命有较好的参考价值。

[Purposes]The core component of the automobile′s dual-clutch transmission(DCT),the shift⁃ing hub,requires high precision in manufacturing.Aiming at the nonlinear problem of CNC milling pro⁃cess,the cutting parameters are optimized to improve the production efficiency and prolong the tool life.[Methods]This paper designs a milling control system based on a fuzzy control algorithm with the con⁃straint of constant power on the spindle load.This paper utilizes CP1E N30 as the main controller,devel⁃ops the sub-controller program using CX-programmer,and creates the upper-level system using Kingview to achieve the development of an intelligent controller based on spindle power signal feedback.[Findings]This paper implements constant power control for milling processes on the XHK716 machin⁃ing center machine tool.Through the application of shifting hub rough milling B plane process,it can be seen that the real-time power is maintained near the target power.[Conclusions]This control system has achieved the goal of improving milling process efficiency as well as protecting cutting tools,and provides valuable reference for extending tool life.