Anti-eccentric load guide structure

Abstract

The invention discloses an anti-eccentric load guide structure, which is used for realizing non-eccentric load guidance during movement of a slide block in a press machine. The guide structure comprises a plurality of square vertical columns (4) which pass through square holes in the four corners of a press machine slide block (1) respectively to guide the slide block (1), and is characterized in that each inner wall surface of the square holes is provided with a first lining plate (2) provided with a concave groove; the four outer wall surfaces, which correspond to the square holes in the slide block, of the squarer vertical columns are provided with second lining plates (3) provided with bumps which correspond to the concave grooves; and when the slide block (1) slides, the square holes in the four corners and the square vertical columns (4) are in close fit one by one through the first lining plates (2) and the second lining plates (3) respectively to do relative movement, so that non-eccentric load guidance of a pressure head is realized. According to the structure disclosed by the invention, slide block eccentricity caused by eccentric load torque can be effectively avoided, accuracy loss of the press machine is avoided, and the accuracy of a forging part is increased.

Description

technical field [0001] The invention belongs to the technical field of presses, and in particular relates to an anti-eccentric load guiding structure of a press body. Background technique [0002] The press usually has a guide structure, which is used for guiding when moving up and down to prevent the eccentricity of the slider. At present, the guide structure of the press is usually a circular column structure, and the guide structure of this circular column structure is usually a wire guide in actual guidance, so the guide precision is low. In addition, there is also a structure that uses polygonal columns for guidance. Although this polygonal column plane guide structure is surface-guided, when there is an eccentric load, the slider of the press will be eccentric, which will affect the accuracy of forging parts. [0003] In the Chinese utility model patent CN202986155U, an eight-sided fuselage guide rail adjustment structure is disclosed. After the guide rail is roughly ...

AI Technical Summary

Problems solved by technology

In actual forming, although they all have a certain anti-eccentric load effect, when used on a multi-station precision forging press with a wide table, due to the large eccentric load, it is inevitable that the eccentric load will cause the slider to eccentric, which will affect the forging parts. Dimensional accuracy and die life, so it is difficult to meet the quality requirements of precision forging products in the fields of automobiles and aerospace

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