Variable-cross-section springback control self-adapting device and method

Abstract

The invention provides a variable-cross-section springback control self-adapting device and method. The variable-cross-section springback control self-adapting device comprises a forming roll system (1), an X-direction movement adjusting system (2), a Z-direction movement adjusting system (3), an X-direction self-adapting adjusting system (4) and a rotation adjusting system (5) in an X-Z plane. The variable-cross-section springback control self-adapting device and method have the advantages as follows: springback of plates can be self-adapted during forming of the plates, the springback force of the plates can be automatically released during forming, and the forming precision is improved.

Description

technical field [0001] The invention belongs to the technical field of variable-section roll-bending equipment, and in particular relates to a self-adaptive device and method for variable-section springback control. Background technique [0002] Roll forming is an efficient, material-saving, and energy-saving metal forming process. It forms sheets or coils into required profiles through sequential configuration of multiple passes. The advantages of roll forming include: low material and energy consumption, good surface quality, high dimensional accuracy, and relatively high strength and rigidity. Roll-bending profiles are widely used in many industries such as construction, machinery, transportation, and home appliances. The usual roll-bending profiles are constant-section profiles, but due to the demand for lightweight vehicles, the research and development of variable-section roll-forming technology and equipment has been promoted. [0003] The general variable cross-sec...

AI Technical Summary

Problems solved by technology

[0003] The general variable cross-section roll forming uses a pair of rolls to roll the plate. However, it has the following disadvantages: it is not easy to realize the forming of variable cross-section profiles with complex cross-sections, and the requirements for the control system are very high. The mechanical structure of the roll forming machine It is very complicated, and the formed profile is prone to many defects, which are not easy to solve

However, when forming variable-section profiles with U-shaped cross-sections, there are the following disadvantages: the calculation of the amount of over-bending is very difficult, and different over-bending amounts require different inclined rollers and dies for forming, which is not self-adaptive

At present, there is no rebound adaptive mechanism that can automatically release the rebound without cornering

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