我厂在生产石油管螺纹保护环时,在CA6140普通车床上加工,不仅效率低,螺纹质量差,而且还经常撞刀。为此,我们设计采用了自动抬刀刀架,这种自动抬刀刀架安装在原车床的方刀架处,实践证明,该刀架操作灵活,使用方便,并且牢固可靠,螺纹加工光洁度可达到5。自动抬刀刀架的结构,是由刀架座10、上盖18、端盖6和支座16组成一个箱体。将装有刀杆1的滑动块22及 I plant in the production of pipe thread protection ring, the CA6140 ordinary lathe processing, not only inefficient, poor thread quality, but also often hit the knife. To this end, we designed the automatic lifting knife holder, this automatic lifting knife holder mounted on the original lathe square knife holder, the practice proved that the knife holder flexible operation, easy to use, and solid and reliable, thread finish can be achieved 5. Automatic knife holder structure, is the turret 10, cover 18, cover 6 and the support 16 to form a box. Will be equipped with a slide block 22 and knife 1