Patent ID: 6892616
Filing Date: 2005-05-17
Classification: B26D,B26F,H05K,Y10T

Abstract:
1. A cutting apparatus comprising a column and a support supporting a cutting blade having a knife edge, said support being configured to control a tilting angle of the cutting blade in a blade length direction, and the cutting blade being driven to be vertically movable relative to the support by a driving source supported by said support; wherein an index table having a surface for positioning a work-piece, a driving source of the cutting blade, and a tilter configured to control the tilting angle of the support are respectively linked with a controller; and wherein said controller processes and stores a tilting angle data by collecting a driving amount of the driving source of the cutting blade as the cutting blade being tilted in the blade length direction relative to the surface of the index table, the tilting angle data being processed by bringing a one end side of the knife edge and an opposite other end side of the knife edge into contact with the surface of the index table by lowering the cutting blade from an original top dead center position, in a state where said cutting blade is slanted by a same angle respectively on the one end side and the opposite other end side in the blade length direction both before and after turning said index table by an angle of 90 degrees, and wherein said controller processes and stores a parameter of a lowering amount data of the cutting blade at a time of moving the cutting blade by a prescribed pitch, from a driving amount of the driving source of the cutting blade, by bringing the knife edge of the cutting blade into line contact with the index table, by lowering the cutting blade from the original top dead center position by moving the cutting blade tilted by the tilting angle data, by a prescribed amount in a direction orthogonal to the blade length direction.