Method and device for measuring the geometry of a cutting edge to be chamfered
AssigneeRollomatic S.A.
InventorPatrick Fritschy
Life of this patent
Estimating the term…
Abstract
The machining of drills (1) includes an operation for chamfering the cutting edges (8) performed in two steps. In the first step the rotating grindstone (15) is directed to various locations of the cutting edge (8) and the point of contact is detected by an electronic appliance (17) whereof the electronic module (19) controls the stoppage of the grindstone, its return to the starting position and the recording of the position of the grindstone at the time of contact. In the second step the grindstone (15) is controlled to follow the left line obtained by connecting the points registered during the first step.
Claims7
Method of measuring the geometry of a cutting edge of a tool with a view to chamfering this edge by an automatically controlled grinding operation, said method comprising detection and recording of the positions of neighbouring points along the edge so as to allow programmed control of the movements of the grinding wheel along said edge, wherein a contact detector is associated with the grinding wheel, and wherein the latter, whilst rotating, is first moved in the direction of the edge along lines cutting the edge at said neighbouring points, the detector stopping the movement as soon as contact is detected and the positions reached being recorded, and wherein said grinding wheel is then controlled according to the recordings of said positions in order to perform the chamfering of the edge.
Dependencies are inferred from the claim text.