Facing Fixture

Milling machines are extensively used for facing seating and mating flat surfaces. Milling is frequently the first operation on the workpiece. Figure shows easy face milling fixture. The workpiece is positioned through three adjustable spherical ended pads 'A'. These pads are adjusted to suit the variation in the size of workpiece and lock in the position through check nuts. Two self adjusting supports 'A' are pushed upward via light spring. These springs are used to make sure that the support 'A' is positively in contact along with the workpiece. Clamping screw is used to lock support 'B'. On tightening the edge clamp, the workpiece is pushed against the fixed jaw. That jaw is keyed in the fixture body to give solid support to workpiece against the heavy thrust developed in the operation. The cutter should be fed to the workpiece in such a manner that the milling thrust should be directed towards the solid support of fixed jaws. The setting can be set in the path of cutter to set it before beginning of facing operation. Four clamping slots are given to take care of the heavy forces establishing during the operation.

                                               Figure: Face Milling Fixture