Patent ID: 8420972
Filing Date: 2013-04-16
Classification: B21L,B23H,B23P,B62D

Abstract:
1. A method of machining a master link for a track chain link of an endless track vehicle, comprising: producing process master links, each of said process master links having two engagement holes; securing a plurality of process master links to a first clamping jig, the first clamping jig having first and second vertical shafts, and each of said process master links placed in horizontally parallel relation with one another and with the first and second vertical shafts engaged with the engagement holes of the process master links; wire-cutting the horizontally-arranged process master links to divide them and thereby provide a plurality of first master links and a plurality of second master links securing the first or second master links to a second clamping jig, the second clamping jig mounted on a machining center and having a horizontally-oriented integral pin, and each of said first or second master links placed in horizontally parallel relation with one another and with the horizontally-oriented integral pin engaged with the engagement holes of the master links; machining, with the machining center, gear teeth portions of the first and second master links using a plurality of machining tools selected from a ball end mill, a flat end mill, and a chamfer end mill.