当检测有多道和不同孔径的变速箱体时,为了装上统一心棒,要在不同的直径孔中配上检套,然后再检测各道孔之间的相关公差。以往装卸检套的方法是用铜棒敲进敲出。这方法对深孔、中间隔挡上孔及孔径加工接近下差时就很费时、费力。为此,我们自制了简便检套装卸器,介绍如下: When testing multi-channel and different aperture gearbox body, in order to put on a unified heart bar, in different diameter hole with jacketed, and then test the correlation between each hole tolerance. In the past, the method of loading and unloading jumpers was knocked out with a copper rod. This method is very time-consuming and laborious for the deep hole, the middle block, and the hole diameter. To this end, we made a simple self-test kit, described below: