A 10,000-ton die forging press used for forging forgings with obvious cross-section changes

Abstract

The embodiment of the invention provides a die forging press. The die forging press includes a rack and an integrally formed movable girder, wherein multiple housings are parallelly arranged and fixedly connected with one another to form the rack, each housing includes a main cylinder, a column piston of each main cylinder is fixedly connected to the corresponding housing, the cylinder bottom of each main cylinder is connected to the upper surface of the movable girder, and all main cylinders are movable oil cylinders and are linearly distributed. By means of the integrally formed movable girder and the rack formed by parallelly arranging and fixedly connecting the housings, the demanded length of the movable girder for production of long-shaft type components is achieved, and since each main cylinder is the movable oil cylinder, a great guiding effect is ensured, so that the unbalance loading resistance of the die fording press is improved, and the service life is prolonged. Additionally, instead of being distributed in a two-dimensional mode in the traditional sense, the main cylinders are distributed linearly, and therefore the position of each main cylinder can be quickly adjusted to ensure the balance of the movable girder. Thus, inclination of the movable girder and other phenomena caused by unbalanced stress during machining is avoided, and the quality uniformity of forging pieces is guaranteed.

Description

technical field [0001] Embodiments of the present invention relate to the field of metal pressure processing and forming equipment, in particular to a 10,000-ton die forging press for forging forgings with obvious cross-section changes. Background technique [0002] Die forging refers to the forging method in which forgings are obtained by forming blanks with molds on special die forging equipment, and die forging presses are one of the special die forging equipment. [0003] The length of parts produced by existing die forging presses generally does not exceed two meters, and longer long-axis parts are generally completed by casting, welding, etc. Compared with other methods, die forging technology has high process efficiency and excellent mechanical properties , Long service life and so on. [0004] The reason why the existing die forging presses are difficult to produce long-axis parts: if a die forging press with single archway and single master cylinder is used, the le...

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Problems solved by technology

[0004] The reason why the existing die forging presses are difficult to produce long-axis parts: if a die forging press with single archway and single master cylinder is used, the length of the worktable and the length of the moving beam cannot meet the forging needs; In the form of the cylinder, although the cylinder-driven master cylinder can be used to achieve long-distance guidance, it cannot guarantee that the cylinder has a good guiding effect. It loses the significance of adopting cylinder-operated oil cylinder

For die forging presses with multi-master cylinder structure, where the main cylinders often use plunger-operated oil cylinders, it is necessary to have a sufficient length of guiding distance for the moving beam. For long-axis parts, the moving beam required for forming The length is very long, a large partial load may be generated during the processing, and the required guide length is longer, and the guide mechanism of the die forging press is set on the moving beam, which will greatly increase the weight of the moving beam and make it difficult to manufacture. increase, increase production cost

In addition, in the current die forging press with multi-master cylinder structure, the multi-master cylinders generally adopt four cylinders, five cylinders, six cylinders or eight cylinders, and are arranged in a plane. The position and balance of the moving beam are mainly determined by the position of each master cylinder. , moving beam stiffness and many other factors are controlled, and a certain degree of coupling is also reflected in the position control of each master cylinder. Therefore, it is difficult to adjust the position of the master cylinder, and the position of the master cylinder cannot be adjusted in time during the forging process, that is, It is impossible to ensure that the moving beam is always balanced during the forging process. If it is light, it will cause local underpressure in the long-axis forgings. damage, safety accidents, etc., which put forward higher technical requirements for the manufacture of die forging presses and the algorithm programming of die forging press systems, and the manufacturing cost also increases accordingly

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