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KDC—A07遥控彩电电源开关的轭铁是重要零件(见图1,图中尺寸单位为mm)。现行工艺是先冲孔、落料、再打弯成形。因打弯工序时是以落料毛坯定位,存在定位误差而致使两孔平行错位引起同轴度误差;同时,由于材料机械性能等因素影响该轭铁的弯曲回弹,又产生两孔轴线交叉引起的同轴度误差。开始批量生产,安装调试模具、冲床时,应首先送计量室利用通用量仪检测,再巡回检。这样需花
KDC-A07 remote color TV power switch yoke is an important part (see Figure 1, the figure size unit mm). The current process is the first punching, blanking, then bend forming. Due to the bending process is blanking blank positioning, there is positioning error caused by parallel misalignment of two holes caused by the coaxial error; the same time, due to material mechanical properties and other factors affect the bending of the yoke rebound, but also produce two-hole axis cross Caused by the coaxial error. Start mass production, installation and commissioning of molds, presses, should first be sent to the measurement room using universal measuring instrument, then tour inspection. This need to spend