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卧式滑动丝杠螺母传动副是机床最常用的传动机构之一,数控线切割机床卷丝筒部件即采用这种传动机构,以实现钼丝的排丝运动。工作时,丝杠不停地往复运动,转速常常达到100rPM。以前的设计往往采用非机械润滑,受到操作和转速的限制,因此,丝杠螺母传动副的润滑成为一个较为棘手的问题。在DK7725数字程序控制线切割机床的研制中,我们采用了油环润滑(如图1),改善了丝祖内润滑条件,两台样机的运转情况良好。
Horizontal sliding screw nut transmission is one of the most commonly used drive mechanism, CNC wire cutting machine reel spool parts that use this transmission mechanism to achieve the molybdenum wire discharge movement. Work, screw constantly moving back and forth, speed usually reach 100rPM. Previous designs often used non-mechanical lubrication, subject to the operation and speed limits, therefore, the screw nut drive lubrication becomes a more difficult problem. In the development of DK7725 digital program control wire cutting machine tool, we adopted the oil ring lubrication (Figure 1), which improved the silk internal lubrication conditions and the operation of the two prototypes was good.