Integrated die with trimming, punching and correction functions

Abstract

The invention discloses an integrated die with the trimming, punching and correction functions. The integrated die with the trimming, punching and correction functions comprises an upper base plate (2) and a lower die plate (12). A trimming upper die (5) is installed below the upper base plate. A hot correction upper die (7) is installed below the upper base plate and in the trimming upper die. Apiercing punch (8) is installed below the upper base plate and in the hot correction upper die (7). A trimming correction lower die (11) corresponding to the trimming upper die in position is installed on the lower die plate. An upper ejector beam (1) connected with the piercing punch is installed on the upper base plate. With the integrated die with the trimming, punching and correction functions, the working procedures of trimming, punching and hot correction are synchronously completed at one time, and trimming force and punching force cancel each other, so that deformation of a forge pieceis lessened; because the working procedures are integrated to be carried out on the same apparatus, the number of operators and the number of apparatuses are lessened, and the benefit is increased; the number of working procedures is lessened, the working procedure of hot correction is set to be in front, heat loss is lessened, the temperature of hot correction is guaranteed, the pressure on correction is lowered, the service life of the compound die and the service life of the apparatus are prolonged, and the quality of a force piece product is improved.

Description

technical field [0001] The invention relates to a mold for trimming, punching, correcting and other processes for forgings. Background technique [0002] The parking gear is a kind of gear that carries the transmission power in the eight-speed gearbox of an automobile. Its workpiece requires three different stations and different processes such as edge trimming, punching, and thermal correction after forging. After the forging is trimmed and punched, the temperature will drop rapidly after the subsequent heat correction process, making the temperature lower during heat correction, increasing the deformation resistance of the forging and increasing the difficulty of correction. Moreover, there are many processes, many required equipments, high cost and low benefit. In addition, the forging is subjected to the deformation force of the two processes of trimming and punching, and its warpage is relatively large, which makes subsequent thermal correction difficult to correct and...

AI Technical Summary

Problems solved by technology

Since the forging undergoes edge trimming and punching processes, and then undergoes subsequent thermal correction treatment, the temperature will drop rapidly, making the temperature lower during thermal correction, increasing the deformation resistance of the forging and increasing the difficulty of correction

And there are more processes, more equipment required, high cost and low benefit

In addition, the forging is subjected to the deformation force of the two processes of trimming and punching, and its warpage is relatively large, which makes subsequent thermal correction difficult to correct and smooth

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