Patent ID: 8460058
Filing Date: 2013-06-11
Classification: B24B

Abstract:
1. An ingot block compound chamfering device comprising: a workpiece table provided so as to allow left-right reciprocating movement on guide rails provided in the left-right direction on a machine frame; a clamping mechanism including a pair of a head stock and a tail stock that are mounted separately on the left and right on the workpiece table; a drive mechanism that causes left-right reciprocating movement of the workpiece table on which a workpiece is mounted held in the clamping mechanism, the drive mechanism arranged in a direction in which one sees the workpiece table perpendicularly from a front side, and facing from a left-side direction to a right-side direction; a rough grinding stage on which are provided, in front of and behind the workpiece table, with the workpiece table between them, a pair of cup wheel type grindstones axially supported on a pair of grindstone shafts that can move forward and backward and can be raised and lowered, in such a way that the grindstone planes face each other, the grindstone diameter of the pair of cup wheel type grindstones having a diameter that is greater than the diagonal length of the workpiece, and the diameter of one cup wheel type grindstone is 5-20 mm less than the diameter of the other cup wheel type grindstone; a finishing grinding stage that is provided parallel to a right horizontal side of the rough grinding stage and in which a pair of cup wheel type grindstones, axially supported on a pair of grindstone shafts that can move forward and backward and can be raised and lowered, are provided in front of and behind the workpiece table with the workpiece table between them, in such a way that the grindstone planes face each other; and a load port that is on a right horizontal side of the finishing grinding stage and an opening through which a workpiece can be moved into and out of the clamping mechanism which includes the pair of the head stock and tail stock mounted separately on the left and right of the workpiece table.