制造滑动轴承通常都要经过研磨。这道工序,一般需要技术较高的工人,用手工进行刮研。但在任务重、高级技术工人少的情况下,用手工刮研的方法已不能适应当前生产的需要。我厂装配车间的同志,利用自制的土拉床,采用拉削挤压的方法代替人工刮研。如过去用手工刮研φ120×560的铜轴承(图1),需要1.5小时,现在用新方法15分钟即可加工一个,提高效率5倍,表面光洁度由6提高到7以上,而且大大减少了劳动强度。现将改进情况介绍如下。 Manufacture of plain bearings is usually subject to grinding. This process, generally require higher-skilled workers, manual scraping. However, in the case of heavy tasks and the shortage of senior skilled workers, the manual scraping method can no longer meet the needs of current production. I plant assembly workshop comrades, the use of homemade Tu La bed, the use of broaching extrusion method instead of manual scraping. As in the past by hand scraping φ120 × 560 copper bearings (Figure 1), takes 1.5 hours, and now the new method can be processed within 15 minutes to improve the efficiency of 5 times the surface finish from 6 to more than 7, and greatly reduced Labor intensity. The improvement is introduced below.