论文部分内容阅读
在机加工车间，经常会碰到在大直径的已加工环形工件上划同心圆且等分的问题。本文介绍一种构造简单的划线工具。 如图１所示，工具的两边装有滚珠轴承５，划线时两个滚珠轴承在工件３的内孔或外圆上滚动。活动划针４用紧定螺钉２固定，划针４的尖端上焊有硬质合金头。 使用时?
In the machining shop, often encountered in large diameter ring workpiece has been processed on the concentric circle and the division of the problem. This article describes a simple construction of crossed tools. As shown in Fig. 1, ball bearings 5 are mounted on both sides of the tool, and two ball bearings roll on the inner hole or the outer circle of the workpiece 3 when scribed. The movable stylus 4 is fixed with a set screw 2, and the tip of the stylus 4 is welded with a cemented carbide head. when using it?