L-shaped non-trace bending die

Abstract

The invention discloses an L-shaped non-trace bending die. The L-shaped non-trace bending die comprises an upper die plate, a lower die plate, an upper core die, a lower push die, a guide part and a supporting plate; the upper die plate and the lower die plate are oppositely arranged; the upper die plate can move along the vertical direction; the upper core die is arranged on the upper die plate; the lower push die is arranged on the lower die plate in the direction closet to the upper core die and far away from the upper core die in a sliding mode; the guide part is arranged on the upper die plate; the guide part is matched with the lower push die so as to push the lower push die; the supporting plate can move along the vertical direction; the supporting plate is matched with the upper core die so as to compress workpieces; the corner portion of the lower push die, which is in contact with the workpieces, is provided with a circular rolling needle. According to the L-shaped non-trace bending die, the structure is simple, the repeated use can be achieved, the function is stable, and the requirements that the outer surfaces of machined products are free of deformation and scratches are met.

Description

technical field [0001] The invention relates to a mold, in particular to a traceless bending mold for an L-shaped piece. Background technique [0002] At present, the working method of bending dies or stamping dies is to deform the workpiece to meet the requirements of the product shape through the mutual mechanical force of the convex and concave dies. During processing, the workpiece is under the pressure of the opening end of the die, and as the forming proceeds, the relative flow between the product and the mold is generated, which is easy to cause scratches on the surface product on the outside of the bending. The traditional solution is to lay urethane, rubber, etc. on the die to meet the requirements of protecting the outer surface of the product. Under normal circumstances, unglue and rubber cannot be recycled multiple times; or it is realized by a mechanism with a relatively complicated structure, and the device is complicated and the reliability is not high. Con...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the defect that scratches are easily caused on the outer side of the formed part when the existing mold is used to process and bend the workpiece, and to provide a non-marking bending mold for L-shaped parts to beautify the workpiece superficial purpose

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