Polymecanique 公司的箱体移动式机械动力头,传动机构比较简单,工作进给由圆柱凸轮传动,快速行程由快速电动机经丝杠传动。动力头可以单轴使用或附装多轴主轴箱,导轨为鸩尾型,其传动系统见图1。动力头的主运动系统为电动机1,经一对减速齿轮3传动主轴7回转。工作进给由主电动机1、经减速齿轮副3、蜗杆蜗轮副4、一对交换齿轮5、蜗杆蜗轮副6,由与蜗轮紧固在一起的 Polymecanique box mobile mechanical power head, the transmission mechanism is relatively simple, the work of the feed by the cylindrical cam drive, fast travel by the fast motor driven by the screw. Power head can be used uniaxially or with multi-spindle headstock, guide rail for the tail type, the transmission system shown in Figure 1. The main motion system of the power head is the motor 1, and the main shaft 7 is rotated by a pair of reduction gears 3. Working feed from the main motor 1, the reduction gear pair 3, the worm gear 4, a pair of exchange gear 5, the worm gear 6, with the worm gear together