A multi-point forming free bending device

Abstract

The invention discloses a pipe multipoint forming and free bending device. The device comprises a support structure, a rotating structure and a deformation structure. The rotating structure comprisesa rotating frame, a first through hole is formed in the rotating frame, and the rotating frame penetrates the support structure and is rotationally connected with the support structure; the deformation structure comprises a guide frame, a plurality of mutually parallel first hydraulic cylinders and a second hydraulic cylinder; the guide frame is fixedly connected with the rotating frame; cylinderbodies of the first hydraulic cylinders and the second hydraulic cylinder are fixed on the guide frame, and the telescopic ends of piston rods face the inner side of the guide frame; axes of the firsthydraulic cylinders, the second hydraulic cylinder and the rotating frame are coplanar; the first hydraulic cylinders close to the rotating frame are coaxial with the second hydraulic cylinder; and the extending ends of the piston rods of the first hydraulic cylinders and the second hydraulic cylinder are rotatably connected with forming wheels. Compared with the prior art, the pipe multipoint forming and free bending device has compact structure and high adaptability, can realize three-dimensional free pipe bending, and has high forming quality and high forming efficiency.

Description

technical field [0001] The invention relates to the technical field of pipe bending devices, in particular to a multi-point forming free pipe bending device. Background technique [0002] The structure of pipe fittings has the advantages of light weight and high toughness. In recent years, with the development of aerospace, automobile industry and other fields, the application of curved pipe fittings as conduits and structural parts is also increasing. The traditional pipe bending forming process has poor flexibility, low production efficiency, and poor forming ability, which can no longer fully meet the manufacturing needs of new products. [0003] At present, according to different bending methods, it can be divided into press bending, push bending, stretch bending, winding bending and roll bending. The bending process of pipe fittings is simple, and it is suitable for mass production of pipe fittings with only one plane bending, but the problem of flattening at the junct...

AI Technical Summary

Problems solved by technology

The bending process of pipe fittings is simple, suitable for mass production of pipe fittings with only one plane bending, but the problem of flattening at the junction of bending and straight often occurs, the bending quality is not high, and the bending angle generally does not exceed 120°

The push bending forming technology of pipe fittings is a kind of pipe bending technology completed with the help of special molds. Although the structure of push bending molds is relatively simple, it is difficult to process, and the flexibility is poor and the price is high.

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