Forging machine with return cylinder anti-unbalance-loading mechanisms and assembling method and using method thereof

Abstract

The invention relates to a forging machine with return cylinder anti-unbalance-loading mechanisms and an assembling method and a using method of the forging machine. The forging machine comprises a main machine frame, an upper fixed beam, a pre-stressed pull rod, a movable beam, a return cylinder, a plunger piston cylinder, a guiding device, a mobile working table, a transverse moving anvil, an upper anvil and a lower anvil. The return cylinder comprises a return cylinder body and a return cylinder plunger piston, wherein the return cylinder body and the return cylinder plunger piston are matched with each other. The anti-unbalance-loading mechanisms are respectively arranged between the upper end of the return cylinder plunger piston and the upper fixed beam and between the lower end of the return cylinder body and the main machine frame, wherein spherical surfaces of the anti-unbalance-loading mechanisms contact each other, and the anti-unbalance-loading mechanisms are displaced relatively. The forging machine with the return cylinder anti-unbalance-loading mechanisms and the assembling method and the using method of the forging machine have the advantages that the upper end and the lower end of the return cylinder are both provided with the anti-unbalance-loading mechanisms, and therefore when the return cylinder receives unbalance loading, the return cylinder plunger piston is guaranteed to move freely and cannot suppress strength, and the service life of the return cylinder plunger piston is prolonged. The return cylinder plunger piston sealing and each part of sealing inside an inner cavity are protected, and the service life of a sealing element and a copper bush is prolonged. The anti-unbalance-loading capacity of a return cylinder plunger piston structure is strengthened, and the stationarity of forging machine running is strengthened.

Description

technical field

[0001] The invention belongs to the technical field of forging presses, and in particular relates to a forging press with anti-eccentric load structures at the upper and lower ends of a return cylinder, an assembly method and a use method thereof. Background technique

[0002] The forging press is a forging machine used for forming and separating in forging processed products, and transmitting working pressure with high-pressure liquid (oil, emulsion, etc.). The forging press works smoothly, without vibration, and can easily reach a large forging depth. It is most suitable for forging of large forgings and deep drawing, packing and briquetting of large-sized sheets.

[0003] The return cylinder structure of the currently used cylinder-driven fast forging hydraulic press is relatively simple. The cylinder body of the return cylinder is connected to the main frame through plane contact, and the plunger of the return cylinder is connected to the upper fixed beam...

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