在机械修配中,有时会遇到一些只能夹着工件的锥度部分进行机械加工,这种工件的装夹就往往成了很棘手的问题。通常的方法是先测出工件的锥度,配作一个内锥套,将工件套入。这种方法比较麻烦,对于单个工件尤不适宜。我们在生产实践中摸索出另外一种方法。即用四小段半圆块(或者用报废了的半圆形锉刀),分别垫在四爪卡盘下,如图1 In mechanical repair, sometimes encountered some can only be carried across the workpiece taper machined, the workpiece clamping often becomes a very difficult issue. The usual method is to first measure the taper of the workpiece, equipped with a tapered sleeve, the workpiece set into. This method is more troublesome, especially suitable for a single workpiece. We explore another way in production practice. That is, with four small pieces of semi-circular block (or with a scrapped semicircular file), were padded under the four-jaw chuck, as shown in Figure 1