Cold extruding mold for shaft-type component of automobile transmission

Abstract

The invention discloses a cold extruding mold for a shaft-type component of an automobile transmission. The cold extruding mold comprises a lower mold base and an upper mold base, wherein the lower mold base is installed on a lower working platform of an oil press and sequentially connected with a lower mold through a lower cushion plate and a lower cushion; lower mold sleeves are respectively sleeved outside the lower cushion plate and the lower cushion; a lower stress ring is sleeved outside the lower mold, the outer edge of the lower stress ring is provided with a lower female connector, the lower end of the lower female connector is provided with a flange which is turned outwards, and the flange is fixedly connected with the lower mold sleeve; the upper mold base is installed on an upper working platform of the oil press and connected with an upper mold through an upper cushion plate; an upper sleeve is arranged outside the upper cushion plate, an upper stress ring is arranged outside the upper mold, and one end of the upper stress ring is fixedly connected with the upper sleeve; the upper mold and the lower mold are respectively provided with a mold cavity which is matched with a shaft. By adopting the cold extruding mold, the energy is saved, the working environment is improved, raw materials can be saved, and the machining cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of dies, in particular to a cold extrusion die for shaft parts of an automobile transmission. Background technique [0002] Automobile transmission shaft parts, including one shaft, two shafts and intermediate shafts. Among them, one shaft is usually integrated with the gear, and the front end is supported on the bearing in the inner cavity of the flywheel of the engine; the front neck of the two shafts is installed on the first shaft through the bearing. In the inner cavity of the ring gear; the intermediate shaft has two types: rotary and fixed. At present, transmission shafts are mostly processed by hot forging, that is, the blank metal is heated to a temperature higher than the recrystallization temperature for forging. However, the heating process in the hot forging method consumes a lot of energy. If unclean energy is used, it will also cause environmental pollution, and the blank metal cutting loss w...

AI Technical Summary

Problems solved by technology

However, the heating process in the hot forging method consumes a lot of energy. If unclean energy is used, it will also cause environmental pollution, and in the hot forging process, it will also cause blank metal cutting loss, which needs to be improved urgently.

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