Forming die for tooth disc forging

Abstract

The invention provides a forming die for a fluted disc forge piece. The forming die comprises an upper die and a female die, wherein the upper die comprises a guide sleeve, pressure blocks, annular plunger chips and filler blocks, the pressure blocks and the annular plunger chips are located on the inner sides of the guide sleeve, the filler blocks are located on the inner sides of the annular plunger chips, and the pressure blocks are located on the upper portions of the annular plunger chips and the filler blocks; the female die comprises an inner die and a die core, and the inner die and the die core form a female die cavity. Compared with the prior art, the forming die is of a split type structure; the upper die is divided into several parts which are machined respectively and assembled for use, consequentially, all the parts of the upper die are machined more easily, the effect that all the parts are put into production is good, qualified products can be produced, and the problem that the service life of a plunger chip in the prior art is short is solved; machining difficulty of the die is greatly lowered because of the pressure distribution structure of the die core of the die, meanwhile the problem of corner collapse easily occurring in the extrusion process is well solved, and the service life of the die is greatly prolonged.

Description

Technical field [0001] The invention relates to the field of metal precision forging, in particular to a forming die for a toothed disc forging. Background technique [0002] See figure 1 , Which is a schematic structural diagram of a chainring. See figure 2 , Which is manufactured in the prior art figure 1 Schematic diagram of the structure of the punch of the middle chainring. See image 3 , Which is manufactured in the prior art figure 1 Schematic diagram of the structure of the concave mold of the middle tooth plate. Such as figure 1 As shown, the bottom of the toothed disk 200 has a first annular groove 101. [0003] Such as figure 1 As shown, according to the model of the chainring 100 according to the structure of the chainring 100, the existing punch 200 is an integral punch. During the extrusion process, the punch 200 bears a larger normal extrusion. The pressure causes the A of the punch 200 to easily break, the life is short, and the punch 200 is not easy to process,...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a forming die for a toothed plate forging, which is easy to process, greatly reduces the difficulty of processing the die, and at the same time solves the problem of easy collapse in the extrusion process, greatly extending the length of the die. life span

Images