Tubular beam composite radius bending forming device

Abstract

The invention relates to a tubular beam composite radius bending forming device which comprises a base, an X-direction moving mechanism, a Y-direction moving mechanism, an indexing mechanism and a die mechanism. The X-direction moving mechanism is installed on the base; the Y-direction moving mechanism is assembled on the X-direction moving mechanism; the indexing mechanism is assembled on the Y-direction moving mechanism; the die mechanism is provided with a profile modeling die die; the profile modeling die die is provided with a die shaft hole; the die shaft hole is arranged on a rotating shaft of the indexing mechanism in a sleeving mode; and the profile modeling die can achieve translation and rotation coupling movement under driving of the X-direction moving mechanism, the Y-direction moving mechanism and the indexing mechanism, so that composite radius bending forming machining of a straight tubular beam is completed. The tubular beam composite radius bending forming device provided by the invention is obviously different from an existing forming device and has the advantages of profiling forming and roll bending forming; and the non-circular profile modeling die is adopted in the forming process to conduct composite radius bending forming machining on the tubular beam, so that adjacent fixed arcs can be tangent, the workpiece forming precision is high, the quality is stable and reliable, and the production efficiency is high.

Description

technical field [0001] The invention relates to a bending device, in particular to a pipe beam composite radius bending forming device. Background technique [0002] The pipe beam with compound radius bending refers to the pipe fittings with two or more arc segments with different radii in the extension direction of the pipe beam. Some pipe beams with compound radius bending are used in automobile structural parts. At present, the composite radius bending forming process of pipe beams is mainly divided into three categories, namely, press bending forming based on stamping equipment, stretch bending forming based on stretch bending equipment, and roll forming based on pipe bending equipment. The three types of forming methods have their own advantages and disadvantages. Press-bending and stretch-bending are one-time forming, which require profiling molds similar to the arc profile of the product to be processed. They can only be produced in a single piece and cannot be used i...

AI Technical Summary

Problems solved by technology

When the existing technology realizes the composite radius roll forming of pipe beams, it is necessary to perform complex servo control on the rollers, and it is impossible to realize the tangency of two fixed arcs. There must be a transition arc between the two arcs with different radii, so it cannot be achieved. Accuracy of one-time forming using mold

In addition, in order to ensure stable forming, roller arc forming requires very high repeat positioning accuracy of the roller, which significantly increases the cost of equipment control

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