三爪自定心卡盘是车床上量大面广常用的装夹工具,卡爪磨损、坏口是较普遍存在的问题。为此,我们自制了一套修整卡爪坏口的简易工装,只要花10—20min就可把坏口的卡爪进行修整,修整后其装夹精度可与新卡盘媲美。 简易工装见图示。它由三个夹具套在卡爪上进行夹紧,然后将圈卡在夹具台阶上夹紧,用装有硬材料刀片10的内孔刀进行车削,刀片材料采用YG8、726等。先半精车,后精车,吃刀深度α_p=0.05mm,从里面回车出来,两刀即可,进给量f=0.1～O.2mm/r、切削速度v=30～45m/min。改变了过去采用磨削,装拆麻烦,磨头难搞的情况,为普及卡爪修整创造了 Three-jaw self-centering chuck is widely used in large lathe clamping tools, jaws wear, bad mouth is a more common problem. For this reason, we made a set of simple tooling for repairing the bad jaws of the jaws, and the jaws of the bad mouth can be trimmed in 10-20min. The clamping precision after the dressing can be compared with the new chuck. Simple tool see the icon. It consists of three sets of clamps clamped on the jaws, and then clamp the ring clamp on the steps of the fixture, equipped with a hard material blade 10 hole cutter for turning, the blade material used YG8, 726 and so on. First semi-fine car, after the fine car, eating depth α_p = 0.05mm, from the inside out, two knives can be, feed f = 0.1 ~ O.2mm / r, cutting speed v = 30 ~ 45m / min . Change the past, the use of grinding, loading and unloading troublesome, grinding hard to engage in the situation, created for the popularity of claw dressing