在机械结构中主要是主轴箱的传动设计，能够根据以给定的条件主轴转速来设计主传动系统。

In the mechanical structure of the spindle box is the main drive designed to be given under the conditions of the main spindle speed drive system design.

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首先绘制“三图一卡”，然后根据“三图一卡”进行组合机床设计以及主轴箱设计。

Draw "three picture one" at first, go on and make up according to "three picture one" lathe design and main shaft case design.

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