我厂过去在制造钻模导板时,常因达不到精度而产生报废;同时要通过划线等手续,因此在工时上也不合算。后来在动力机具车间老工人李安生同志的建议下制成了一部钻孔分度器,并经过若干改进成为[图一]所示的样子。这个工具使用了将近两年,事实证明效果很好,既提高了工作效率,又保证了质量。它由分度器座1、分度盤2、迴转盤3、……等53种另件构成,主要分为两个部份;一部份起分度作用,另一部份则起控制钻孔中心距离的作用。分度器座1固定在钻床工作台上。分度盤2用螺钉 In the past, when manufacturing the drill guide plate, our factory always scrapped because of the lack of precision. At the same time, we also had to go through the formalities such as scribing and so on, so it was not worth the man-hours. Later, a drilling indexer was made on the advice of Comrade Li An-sheng, a veteran of the power tool shop. After several improvements, he became a figure as shown in Figure 1. This tool has been in use for almost two years and proved to work well, improving work efficiency and ensuring quality. It consists of indexer seat 1, indexing disc 2, rotary disc 3, ... and other 53 pieces of the composition, is divided into two parts; one part from the role of indexing, the other part from the control of drilling The role of the center distance. Indexer stand 1 is fixed on the drilling table. Index plate 2 with screws