Manufacturing method for one-time bending forming of narrow edge of box-shaped hollow part

Abstract

The invention discloses a manufacturing method for manufacturing a narrow edge of a box-shaped hollow part through one-time bending forming. The manufacturing method comprises the following steps that firstly, a box-shaped hollow part sheet metal part is positioned on a positioning block; secondly, a driving rod drives a moving block to move forwards, and core rods are inserted into an inner cavity of the box-shaped hollow sheet metal part; thirdly, a box-shaped hollow nut part is clamped and fixed between the core rods; fourthly, an upper die body is driven to move downwards relative to a lower die block, a bending block guide plate and a bending block fixing needle extrude an eccentric bending block to rotate to flatten a wing plate, the side face of a lower ejector block extrudes the narrow edge of the sheet metal part to form flattened threads, and the box-shaped hollow part is manufactured; fifthly, an upper die body driving part drives an upper die block to move upwards, the eccentric bending block is reset under the action of gravity, and a lower die block is reset under the action of a spring; and sixthly, the driving rod drives the moving block to return to the initial position, the box-shaped hollow part is taken down, and the process is finished. The manufacturing method has the beneficial effects that two processes of bending and leveling are completed at a time, the production efficiency is greatly improved, and the production benefit is improved.

Description

technical field [0001] The invention relates to the technical field of making hollow parts, in particular to a method for making a narrow side of a box-shaped hollow part by one-time bending. Background technique [0002] The applicant originally had a Chinese invention patent with the application number CN202010487728.7 titled "A Connecting Device for a Floating Component and Its Using Method" which disclosed a connecting device for a floating component, including an upper mold body and a lower mold body. The upper mold body is connected with the upper mold body driving part, and the upper mold body can be driven by the upper mold body driving part to move up and down relative to the lower mold body, and it is characterized in that: the lower mold body is provided with a A positioning part positioned on the lower mold body and positioning the nut part in the inner cavity between the wing plates of the sheet metal part, a driving mechanism capable of opening the positioning ...

AI Technical Summary

Problems solved by technology

However, the molding process in this method is pre-bending first, and then flattened. Two sets of equipment and two sets of mold sets are required to complete the overall molding process. The production efficiency of the product is low and the production cost of the product is high, so the production method needs further improvement

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