通过对轴承钻油孔夹具结构的改进，使钻油孔夹具内径与外径定位兼备，扩大使用范围，降低制造成本。
The fixture used for oil hole drilling has both ID and od location by improving the structure of the fixture, so as to expand application scope and reduce production cost.
针对加工六缸曲轴主轴颈孔、连杆颈直油孔的需要而设计的卧式双面多工位数控钻削组机。
Horizontal double sided NC combined drilling machine is specially designed for the machining of main shaft journal hole and crank arm journal straight oil hole of crankshaft with six cylinders.
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