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电磁调速电机在装配时由于孔径大同心度差安装后容易造成内腔相擦。经分析主要原因由于大钻模同心度及定位差定位不准。针对这一情况从模具上改进经过多次摸索,并吸取外单位的有益经验,设计了一种操作简单同心度高的钻模(图示)。工作原理是将钻模放入加工件φ235孔内,然后旋紧螺钉2,此时φ12.7钢球被螺钉的锥面向外挤出通过钢柱和尾部的钢球与被加工的大孔壁紧密接
Electromagnetic speed control motor in the assembly due to the large aperture difference after installation is easy to cause cavity friction. The main reason for the analysis due to the large die concentricity and positioning poor positioning is not allowed. In view of this situation from the mold improvement After many exploration, and learn from the useful experience of outside units, the design of a simple and easy to operate high concentric drill (icon). Working principle is to drill into the hole φ235 processing parts, and then tighten the screw 2, φ12.7 ball was screwed out of the cone through the steel column and the tail of the ball and the hole wall to be processed Closely linked