Patent ID: 6110009
Filing Date: 2000-08-29
Classification: B24B,F16D

Abstract:
A grinding machine for grinding a frictional surface of a brake pad being substantially plate-shaped so as to finish the brake pad to a predetermined size and shape, comprising:a cylindrical grinding wheel capable of rotating about a rotational axis;a pad chucking portion for holding the brake pad such that the frictional surface of the brake pad faced an outer circumferential surface of the cylindrical grinding wheel;an X-axis feed mechanism for advancing and retreating the pad chucking portion along an X-axis direction perpendicular to the rotational axis of the cylindrical grinding wheel and parallel to a longitudinal axis of the frictional surface of the brake pad;a Y-axis feed mechanism for advancing and retreating the pad chucking portion along a Y-axis direction perpendicular to the longitudinal axis of the frictional surface of the brake pad;a numerical control device configured for controlling feed motions of the pad chucking portion conducted by the X-axis and the Y-axis feed mechanisms in accordance with inputted numerical data so as to selectively move the pad chucking portion along the X-axis and Y-axis directions to thereby chamfer at least one end portion of the frictional surface of the brake pad, and selectively continue to move the pad chucking portion along the X-axis direction to thereby grind the frictional surface into a plane parallel to the longitudinal axis of the frictional surface of the brake pad while the pad chucking portion is prevented from moving relative to the Y-axis direction.