PL399570A1 - Spiral bevel tool, especially for rolling of balls - Google Patents

Abstract

The conical-spiral tool, especially for rolling balls, which has the shape of a disc is characterized by the fact that on the face of the disc (1), in its axis, a hole (2) is made, behind which there is a conical crushing surface (3), which forming is inclined at a fixed angle relative to the face of the disc (1). Behind the conical crumbling surface (3) is the conical (4) entrance surface, which is inclined at a fixed angle, while behind the conical surface (4) there is a conical surface (5) with a wedge protrusion (6) spiral with a fixed angle of inclination and a constant angle of inclination of the lateral surfaces (8a, 8b), whereby the wedge projection (6) spiral gradually increases its height and width, then behind the wedge projection (6) spiral, on the conical work surface (5), a spiral projection (7) with lateral surfaces (9a, 9b) that form a pattern in the shape of rolled balls with a radius equal to the radius of the shaped sphere, while the spiral projection (7) gradually increases its width and height, and the pattern formed by the lateral surfaces (9a, 9b) are inclined at a fixed angle relative to the face of the disc (1), with the pattern angle equal to is the tilt angle of the conical (4) input surface.