不影响机床的原有性能和精度,扩大机床使用范围,达到“一机多用”的要求,是一般小型修理厂克服设备不足,解决生产急需的好办法。现在将我们利用C620车床镗削缸体主轴瓦座的方法介绍如下。制造一套专用的镗削工具,它主要由镗杆、长轴、键轴、万向节和几个套组成(见图)。镗杆直径为48毫米,长1000毫米,一端开有方孔,以安装镗刀,并依靠镗杆上的顶丝固定和对刀。两个定位套安装在缸体主轴瓦座孔中,镗杆就用 Does not affect the original performance and precision machine tools, machine tool to expand the scope of use, to achieve “a multi-purpose machine,” the request is generally a small repair shop to overcome the lack of equipment to address the production of a good way to urgently needed. Now we will use C620 lathe cylinder block bearing bush boring method is described below. Create a dedicated boring tool consisting mainly of boring bar, long shaft, key shaft, gimbal and several sleeves (see photo). The boring bar has a diameter of 48 mm and a length of 1000 mm. The boring bar has a square hole at one end for installing the boring tool, and the boring bar relies on the top wire on the boring bar for fixing and tool setting. Two sets of positioning sleeve installed in the main bearing housing hole, boring bar to use