在车床上使用三爪卡盘,常常发现细小的切屑(特别是铸铁屑),从卡爪口进入盘丝直达伞齿轮副,致使卡爪松紧呆滞,零件加剧磨损,甚至将卡爪卡死,造成不能工作。为此,不得不卸下卡盘进行拆洗,极其麻烦。通过分析发现容易嵌入切屑的卡盘,大多是因为盘体内孔出现倒锥(即孔口小、里头大)。针对这一情况,我们在使用三爪卡盘时,将内孔车成1°左右的顺锥,使切屑碰到卡盘内孔壁时,得到一个向外飞溅的分力,并跳甩出去。从 In the lathe on the use of three-jaw chuck, often found that small chips (especially cast iron), from the jaws into the disk directly into the bevel gear, resulting in loose claw loose, parts wear and tear even worse, Cause can not work. To this end, had to remove the chuck washable, extremely troublesome. Through the analysis found that easy to embed chip chucks, mostly because the disk body inverted cone hole (that is, small aperture, inside large). In view of this situation, when we use the three-jaw chuck, the inner hole into the car about 1 ° of the cone, the chip hit the hole wall of the chuck, get a splash force, and jumped out . From