论文部分内容阅读
我厂在制造液压马达心轴零件时,以前采用的是常规工艺:先顶住中心孔磨外圆,再在平面磨床上用平口机床虎钳夹持65mm宽两侧平面,并用两块专用等高垫铁支承两头外圆。由于活动钳口在夹紧过程中使工件产生程度不一的向上浮动,另外还有工件在热处理中产生的变形,导致工件的定位基准圆柱面不能紧靠等高垫铁,操作者在装夹时必须用铜棒反复敲打,这样磨削出来的平面很难达到技术要求,并且生产率很低。经过一段时间的反复实践,在原来的机床虎钳上
I plant in the manufacture of hydraulic motor spindle parts, previously used is the conventional process: first to withstand the center hole mill cylindrical, and then use a flat surface grinder flat vise clamp 65mm width both sides of the plane, and with two special High horn supports two outer circles. As the activities of the jaw in the clamping process so that the workpiece to produce varying degrees of upward float, in addition to the workpiece in the heat treatment of deformation, resulting in the positioning of the workpiece can not be located against the benchmark cylindrical surface horn, the operator in the folder Must be repeatedly beat with a copper rod, so grinding out of the plane is difficult to meet the technical requirements, and productivity is very low. After a period of repeated practice, in the original machine vise