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我们对SCX—73型机床进电方式作了一点小的改动。高频电源负极接在铜导电柱上,导电柱头部通过φ3钢球与导轮接通,打开高频电源后,钼丝通过导轮与电源接通。导电柱尾部为4×4方头,与调节螺丝方孔H_9/h_9配合,故只能作轴向移动。导轮旋转时,钢球一般不动,即使由于弹簧力量过大钢球旋转,但弹簧保证导电柱与钢球、导轮轴端紧密接触,导电柱磨损后,也能保持良好的接触。整个机构的改造简单,并允分利用原来机上的零件,另把原来的钢质轴承盖和调节螺丝换成聚碳酸脂,作了一点小的变动,以便通过钢球导电柱,再增添一个导电柱。上、下导轮只改动一边轴承付,另一边不作任何改动。上、下同时进电。
We made a slight change to the power-in mode of the SCX-73 machine tool. The negative pole of the high-frequency power source is connected with the copper conductive pillar, the head of the conductive pillar is connected with the guide wheel through the φ3 steel ball, and after the high-frequency power is turned on, the molybdenum wire is connected with the power through the guide wheel. Conductive column tail for the 4 × 4 square head, and adjust the square hole H_9 / h_9 with, it can only be axial movement. When the guide wheel rotates, the steel ball does not move normally. Even if the steel ball rotates due to excessive spring force, the spring ensures that the conductive pillar closely contacts with the steel ball and the guide wheel shaft end, and the conductive column can also maintain good contact after being worn. The transformation of the entire organization is simple and allow the use of the original machine parts, the other the original steel bearing cap and adjusting screws into polycarbonate, made a small change in order to pass through the ball conductive column, and then add a conductive column. Upper and lower guide wheel only change the side bearing to pay, the other side without any changes. Up and down at the same time into the electricity.