用优化设计方法进行滚珠丝杠传动的设计，对设计的目标函数及约束条件进行了分析讨论。

An optimization method has been used in the design of teh ball screw drive. The objective function and constraint conditions are discussed.

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采用滚珠丝杠传动实现机头水平运动，及钢丝芯同步带传动实现机头垂直运动，焊接尺寸精度高；

Ball screw system adopted to realize the horizontal movement of machine head; using step belt with steel wire core to realize the vertical movement of the machine head; high welding accuracy.

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本传动系统由交流伺服电机、滚珠丝杠及直线导轨等组成。

The drive system consists of AC servomotor, ball screw and rectilinear orbit etc.

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