Patent ID: 7497151
Filing Date: 2009-03-03
Classification: B23Q,B24B,Y10T

Abstract:
1. Method of machining mechanical workpieces, in particular of machining the braking surfaces ( 2 , 3 ) of a brake disc ( 1 ) for vehicles, the brake disc ( 1 ) of the type that comprises a plurality of radial passages ( 4 ) defined in the thickness of the disc ( 1 ) included between opposed surfaces ( 2 , 3 ), the method comprising the steps of loading the workpiece onto a work station ( 8 ) and clamping the workpiece in a median reference plane (A) between the opposed braking surfaces ( 2 , 3 ), as well as defining the excess material thickness to be removed from each of the said surfaces, with respect to the positioning co-ordinates of the said plane in relation to a system of working axes of the station, to achieve a balanced, centered division of excess metal removed from the said surfaces ( 2 , 3 ), characterized in that it further comprises the following steps: preliminarily loading and clamping the workpiece on a handling device ( bringing said handling device ( clamping the workpiece on the chuck (