Small-curvature bending forming auxiliary processing device and auxiliary processing method

Abstract

The invention relates to a small-curvature bending forming auxiliary processing device and an auxiliary processing method. The auxiliary processing method is characterized by comprising the steps of adopting elastic elongated metal sheets as core strips, superimposing the multiple core strips, fixing one ends of the superimposed core strips to one end of a core seat, and fixing the other end of the core seat into a hydraulic system through a connecting shaft; before bending forming a workpiece, starting the hydraulic system, and stretching the superimposed core strips into the workpiece; when bending forming the workpiece, starting a bending tool for bending the workpiece and the core strips; and after bending forming the workpiece, starting the hydraulic system to extract the core strips from the bent workpiece. According to the small-curvature bending forming auxiliary processing device and the auxiliary processing method provided by the invention, a hollow tubular workpiece cannot be crumpled when being bent.

Description

technical field [0001] The invention relates to an auxiliary tool for bending a workpiece, in particular to an auxiliary tool for preventing the workpiece from wrinkling when it is bent. Background technique [0002] At present, when bending a hollow tubular workpiece with a rectangular cross-section, the surface of the workpiece tends to produce wrinkles sunken inward at the bent part. Surface dimples formed in the bends of the workpiece can affect the performance of the workpiece and can affect the appearance of the workpiece. Although using internal sand filling or manual core pulling at both ends can achieve better results, but using internal sand filling requires sand filling and both ends need to be sealed. After bending, the end seal and the sand particles need to be removed. Time It is long and inefficient, and it is only suitable for small batch production and production situations with high process costs. However, the workload of manually installing core-pulling ...

AI Technical Summary

Problems solved by technology

Surface dimples formed in the bends of the workpiece can affect the performance of the workpiece and can affect the appearance of the workpiece

Although using internal sand filling or manual core pulling at both ends can achieve better results, but using internal sand filling requires sand filling and both ends need to be sealed. After bending, the end seal and the sand particles need to be removed. Time Long, low efficiency, only suitable for small batch production and production situations with high process costs

Manually installing core-pulling at both ends requires a lot of work, and additional core-pulling devices and handling procedures are required, which is time-consuming and labor-intensive.

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