钳工找轴类圆心的方法,一般是把工件放在V型块上,然后,用划针划出四条互相垂直的细线,经过几次的重复,最后才得出圆心的位置(图1)。这样速度慢而且麻烦。针对以上情况,我们在生产中采用如图2的V型块,只要划两条线,就 The method of finding the axis center of the fitter is generally to place the work piece on the V-shaped block. Then, the four perpendicular thin lines are drawn with the scribing needle. After several repetitions, the position of the center of the circle is finally obtained (Figure 1) . This is slow and troublesome. In view of the above, we use the V-shaped block shown in Figure 2 in production, as long as two lines drawn