Method and device for producing molds for toothed belts
OwnerPeter Baeumlerinventor
Life of this patent
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Abstract
The invention relates to a method and to a device for producing molds for toothed belts. A grinding wheel (9) that has a profiled periphery is used instead of a milling cutter to provide the circumference of a roller-shaped blank (4) with the matrix of a desired tooth contour of a toothed belt. The circumferential profile of the grinding wheel (9) is trimmed using a CNC-controlled diamond trimming pin (11) or alternatively with a profiling diamond (19).
Claims6
A method of producing molds for toothed belts comprising:
- obtaining a workpiece, said workpiece being cylindrical and having a longitudinal axis and a circumferential surface;
- obtaining a metal-cutting tool, said cutting tool having at least one rotating grinding wheel, said grinding wheel rotating about an axis perpendicular to said longitudinal axis having a profiled circumferential surface, said profiled circumferential surface comprising a convex central region;
- applying said rotating grinding wheel against the workpiece circumferential surface and simultaneously translating the workpiece along the longitudinal axis of the workpiece for forming a matrix of tooth belt toothing into said circumferential surface of said workpiece, said matrix of toothing corresponding to said profiled circumferential surface.
A device for producing molds for providing toothed matrices on a cylindrical workpiece, having a circumferential surface and a longitudinal axis, said device comprising:
- a workpiece holder, said workpiece holder holding said workpiece;
- rotating means for angularly rotating said workpiece about said longitudinal axis on said workpiece holder;
- a cutting tool including a grinding wheel having a rotating axis perpendicular to said longitudinal axis and having a profiled circumferential surface, said profiled circumferential surface comprising a convex central region;
- means for translating said work-piece along said workpiece longitudinal axis;
- trimming means for trimming a profiled circumferential surface onto said grinding wheel, said profiled circumferential surface comprising a peripheral profile defining a counter profile for a toot for a toothed belt;
- said trimming means comprising a profiled trimming element, said profiled trimming element having a profiled trimming region, said profiled trimming region having a counter profile of said profiled circumferential surface of said grinding wheel.
Dependencies are inferred from the claim text.