A roller type multi-section control section bar three-dimensional stretch-bending dieless forming device

Abstract

The invention provides a roller type multi-section control section bar three-dimensional stretch-bending dieless forming device and belongs to the technical field of metal section bar stretch-bending forming. The device is mainly applied to part manufacture of three-dimensional bending and twisting composite deformation of metal section bars. Multiple rollers are used and the positions and angles of the normal sections on the space of three-dimensional bending and twisting formed parts of section bars are subjected to section control, so that linear section bars are bent and twisted according to a preset trajectory to finish composite forming. One roller controls the spatial position and angle of one normal section of one formed part. The device consists of such parts as a machine base, a plurality of universal angle-adjustable supports and a group of forming rollers. One universal angle-adjustable support is provided with and controls one roller, so that the spatial position and the axial direction thereof can meet the deformation requirements. The machine base and the universal angle-adjustable supports are common parts; the group of forming rollers can be applied to formed parts with different bending curvatures of sections bars with the same section.

Description

technical field [0001] The invention discloses a roll-type multi-section control profile three-dimensional stretch-bending moldless forming device, relates to a profile stretch-bending and torsion forming device, which can be widely used for stretch-bending and torsion forming of streamlined three-dimensional profile structural parts, and belongs to metal profiles Stretch bending technology field. Background technique [0002] With the wide application of three-dimensional bending and torsion forming components, the axial length is longer, the bending radius of each point is larger, and the three-dimensional forming of metal profiles with complex cross-sectional shapes is currently basically performed on a stretch bending machine using a stretch bending die for two-dimensional bending, and then The workpiece is removed for manual twisting. [0003] Some of the existing technologies only solve the problems of profile entry, forming, springback control and generalization of m...

AI Technical Summary

Problems solved by technology

That is, the disadvantage of the existing technology is that each type of stretch-bending part requires a set of corresponding forming modules, even for parts with the same cross-section and similar bending directions, different forming modules are required

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