Material clamping and flanging mechanism

Abstract

The invention discloses a material clamping and flanging mechanism which comprises an upper die base and a lower die base. A part male die and a fixed male die are arranged on the lower die base, the fixed male die is located on the lower side of the material pressing core, the fixed male die and the material pressing core jointly act on a part to be stamped, the part male die is arranged on the side edge of the fixed male die, and the sliding block drives the slotting tool to drive the wedge sliding block and the movable male die to move towards the part male die. A flanging groove is concavely formed in the side, facing the movable male die, of the part male die, a reverse sill supporting block is further arranged at the bottom of the flanging groove, a balance block is arranged on the upper surface of the reverse sill supporting block, and a [-shaped structure allowing the movable male die to enter is formed among the part male die, the flanging groove and the reverse sill supporting block; a nitrogen return spring is further arranged on the lower die base and located below the reverse sill supporting block, and the nitrogen return spring is connected with the wedge sliding block. According to the lateral flanging tool, optimization can be achieved as much as possible under the condition that multiple materials exist in the product flanging process, it can be guaranteed that the plate is always kept in the traction stretching state in the lateral flanging process on the tool, and the situation that the lateral flanging wrinkles is eliminated.

Description

technical field [0001] The invention relates to the technical field of stamping dies, and more particularly, to a material clamping and flanging mechanism. Background technique [0002] Flange forming is a common forming process in the automotive industry. Due to different shapes and functions, inevitable wrinkling defects will appear on the flange surface. In order to pursue good quality, there will be various processing methods. [0003] 1. The current process plan cannot quickly adjust the amount of flanging springback during the flanging and shaping process, and repair welding and processing of flanging knife blocks are required for each rectification. [0004] 2. The current process plan cannot quickly adjust the flanging gap during the flanging shaping process, so as to realize the forced optimization of the surface quality of the flanging surface, and repair welding and processing of flanging cutter blocks are required for each rectification. [0005] 3. The current ...

AI Technical Summary

Problems solved by technology

[0003]1. The current process plan cannot quickly adjust the amount of flanging springback during the flanging and shaping process, and repair welding and processing of flanging cutter blocks are required for each rectification

[0004]2. The current process plan cannot quickly adjust the flanging gap during the flanging and shaping process, so as to realize the optimization of the surface quality of the flanging surface by strong pressure. Repair welding and processing of flanging knife block

[0005]3. The current flanging process cannot pull the tail sheet of the flanging surface, control the speed of the sheet material inflow, and achieve the goal of optimizing the quality of the flanging surface

[0006]4. If the flanging surface is long and in the arc-shaped multi-material area, the surface will wrinkle seriously, and the current product structure cannot absorb more materials from the product

[0007]5. Some processes will adopt the method of pressing and flanging, but the cost of tooling is high, and after flanging, it is necessary to increase the trimming process, which increases the cost of realization

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