Solved with the spindle sleeve and bearing components with the layout of the form of the key technical problems.

解决了套筒与主轴的配合及支承部件的布置形式等关键技术问题。

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Three quenched bushes are pressed on the hollow spindle (sleeve) with a big interference fit, thus the spindle can move forward and backward precisely within the bush.

三个大干涉配合的淬火衬套压装在空心轴（镗套）上，因此，主轴能在衬套内前后精确移动；

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The technical equipment adopted the construction that the spindle drove boring sleeve, boring bar and cutter bar in order to finish machining spherical surface. The improved result was good.

该工装采用主轴带动镗套和镗杆及刀杆的结构来完成球面加工的切削运动，已取得了良好的使用效果。

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