A through-type tooth extrusion die

Abstract

The invention provides a run-through type gear burnishing die which comprises an annular punch, a core rod punch, an elastic component, a female die and a discharge cavity. The annular punch is fixedly connected to an upper die base, the core rod punch is movably arranged in the annular punch in a penetrating mode, the elastic component is located between the core rod punch and the upper die base, the female die is connected to a lower die base, a die cavity matched with a tooth form forged piece is formed in the female die, the discharge cavity is located below the die cavity and in through connection with the die cavity, a discharge rod coaxial with the core rod punch is arranged in the discharge cavity in a penetrating mode, the lower end of the discharge rod is connected to the lower die base, the upper end of the discharge rod abuts against the tail end of the core rod punch, and the outer diameter of the discharge rod is smaller than the hole diameter of the tooth form forged piece. Compared with the prior art, by the adoption of the run-through type gear burnishing die, the tooth form forged piece can be prevented from being collided and damaged in the discharge process, and the rejection rate of tooth form products in the production process is remarkably reduced.

Description

technical field [0001] The invention relates to the field of metal precision forging, in particular to a through-type tooth extruding die. Background technique [0002] There are many processing methods for tooth-shaped products, such as gear shaping, hobbing, forging, etc. Among them, the forging tooth shape includes split forging, closed tooth extrusion, and through tooth extrusion. [0003] Through tooth extrusion is a commonly used and convenient tooth profile processing method in the forging tooth profile process. The extrusion forging die used is simple in structure and easy to operate. However, there is a certain distance between the discharge port and the material frame of the tooth-shaped extrusion die in the prior art. During the automatic discharge process, when the tooth-shaped product falls into the material frame, it is easy to collide, thereby damaging the tooth-shaped part. [0004] Therefore, it is necessary to develop a new through-tooth extrusion die to s...

AI Technical Summary

Problems solved by technology

However, in the prior art, there is a certain distance between the discharge port of the tooth extrusion die and the material frame. During the automatic discharge process, the tooth-shaped product is prone to collision when it falls into the material frame, thereby damaging the tooth-shaped part.

[0004] Therefore, it is necessary to develop a new through-tooth extrusion die to solve the technical problem that tooth-shaped products are easily damaged when they are discharged, so as to reduce the scrap rate of tooth-shaped products in the production process

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