Double-edge ball

Abstract

The invention discloses a double-edge ball. The double-edge ball comprises a rod body, chip grooves, cutting edges, a ball, a chip guiding groove, a knife edge, a hand-holding part, a base, a fixed groove and a limiting hole. The double-edge ball disclosed by the invention has the beneficial effects that the rod body is connected with an installation seat through the limiting hole formed in the base, and the rod body is fixed through the fixed groove formed in the side wall of the rod body, so that the rod body is prevented from tilting during installation of the double-edge ball; the chip grooves are spirally surrounded on the rod body, so that scrap cut off by the ball can be conveniently discharged through the chip grooves; the inner surface of the chip guiding groove is a smooth arc-shaped surface, and the tail end of the chip guiding groove is connected with the chip grooves, so that the cut scrap can be accurately guided into the chip grooves; the ball is made by adopting a hardalloy material, and the knife edge on the top end of the ball is coated with a composite coating layer, so that abrasion of the knife edge is reduced; the hand-holding part is provided with strip-shaped bands, and the strip-shaped bands are uniformly distributed on the outer wall of the hand-holding part, so that the friction coefficient between the hand-holding part and fingers can be increased,and the rod body can be conveniently screwed.

Description

technical field [0001] The invention relates to a ball head, in particular to a double-edged ball head, which belongs to the technical field of cutting tools. Background technique [0002] Ball-end cutters can mill die steel, cast iron, carbon steel, alloy steel, tool steel, and general iron materials. They belong to end mills, and ball-end cutters can work normally in high-temperature environments. The regenerated cemented carbide is a kind of utilization of energy. By processing the drill powder, the recycled carbide drill powder can be processed into various cutting tools. [0003] And for existing ball nose cutter, one, it is generally flat-topped or conical, easily makes blade damage when drilling, also has when using, and the cutter head shakes easily, inconvenience is guided to the cutter head , so that it is easy to make the drilling deviation and affect the quality of the drilling. Second, after a period of processing, the cutting edge of the cutting edge wears ser...

AI Technical Summary

Problems solved by technology

[0003] And for existing ball nose cutter, one, it is generally flat-topped or conical, easily makes blade damage when drilling, also has when using, and the cutter head shakes easily, inconvenience is guided to the cutter head , so that it is easy to make the drilling deviation and affect the quality of the drilling. Second, after a period of processing, the cutting edge of the cutting edge wears seriously, and the cutting tool life is low. It is necessary to replace new cutting tools frequently, which is wasteful. Third, cutting At this time, the generated waste cannot be smoothly discharged through the flute, and some waste will remain under the cutting edge, which will affect the cutting accuracy and the smoothness of the cutting surface.

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