Machine for resurfacing turbine vanes

Abstract

A resurfacing machine and method for repairing turbine vanes and the like, the machine comprising a bed carrying a pair of supports which are capable of limited advancing and retracting movement with respect to one another. One of the supports is slidably carried on a pair of substantially parallel, coextensive guide bars mounted by the bed, and has a camming device engageable with a cam follower disposed on the other support. The latter is mounted for pivotal movement on the bed, and carries a motor driven sanding belt adapted to engage a workpiece clamped in place on a work-performing station of the first support. The movement of the first support is such that the workpiece is brought into engagement with the sanding belt as the support moves. Simultaneously, the cam follower is engaged by the cam, causing pivotal movement of the second support in such a way that the particular contour or shape of the cam is imparted to the workpiece. Means are provided for effecting automatic advancing and retracting movement of the first support on the bed, and for halting such movement when predetermined positions have been attained. Additional means are provided for adjusting the position of the cam with respect to the first support and workpiece, thus enabling variation in the degree of resurfacing of the particular vane being machined.