Automatic forging production line and process method for aero-engine bearing ring

Abstract

The invention discloses an automatic forging production line and process method for an aero-engine bearing ring. The production line comprises a material transfer unit, five robots, three heating furnaces, a three-station servo hydraulic machine, a transfer loading table, two numerical control automatic ring rolling machines, a discharging roller table, a fog cooling machine and a slow cooling holding furnace. The process method comprises the steps of feeding, medium-temperature preheating, high-temperature heating, upsetting forming, punching forming, bottom cutting open width, high-temperature secondary heating, ring rolling and cooling/destressing. According to the automatic forging production line and process method for the aero-engine bearing ring, automatic production of the aero-engine bearing ring is achieved, the influence of human factors in a conventional manual forging process is avoided, the forging heating time of the same batch of forgings is consistent, the heating state is uniform, the forging impact force is balanced, the forging speed is stable, the punching forming force is controllable, the punching speed is unified, the rolling force in the ring rolling process is stable, and the ring rolling speed is stable so that the quality of the forgings produced in batches has stability and consistency.

Description

technical field [0001] The invention belongs to the technical field of manufacturing aero-engine bearing rings, and in particular relates to an automatic forging production line and a process method of an aero-engine bearing ring. Background technique [0002] The main shaft bearing is one of the key components of the aero-engine, which is mainly used to support the rotating shaft, guide the rotating motion, and bear the load transmitted to the bracket. Since the main shaft bearing needs to operate under the conditions of high speed, high temperature, complicated stress and serious pollution, the quality and performance of the main shaft bearing directly affect the performance, life and reliability of the aero-engine. [0003] At present, the domestic aviation bearing rings are still produced by the conventional manual forging process. In the conventional manual forging process, the heated material section needs to be put into the manual operation box-type resistance furnace...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of manufacturing aeroengine bearing rings by conventional manual forging process, since the material heating, transfer, billet making, furnace heating and rolling process are all completed by manual operations, they are affected by human factors, resulting in manual High operational instability, inconsistent forging heating time, uneven heating state, unbalanced forging striking force, unstable forging speed, uncontrollable punching forming force, inconsistent punching speed, Unstable rolling force, unstable rolling speed, and different skills of operators in the rolling process are more prominent, so that mass-produced forgings cannot achieve quality stability and consistency

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