Blanking, bending and punching composite die

Abstract

The invention discloses a blanking, bending and punching composite die which comprises a machine seat, an upper die body and a lower die body. The upper die body comprises an upper die plate, a blanking male die, a bending male die and a punching male die. The upper die plate is mounted on the machine seat in an up-down moving mode. The punching male die is fixedly mounted on the upper die plate.The blanking male die and the bending male die are mounted on the upper die plate through a switching connecting mechanism. At the blanking position, the blanking male die is fixedly connected to theupper die plate and continues to move downwards, and the blanking male die is movably connected with the upper die plate upwards; at the bending position, the bending male die is fixedly connected tothe upper die plate and continues to move downwards, the bending male die is movably connected with the upper die plate upwards; and at the punching position, the punching male die protrudes out of the blanking male die downwards and continues to moving downwards and / or protrudes out of the bending male die in the lateral direction. The lower die body comprises a lower die plate. The lower die plate is fixedly mounted on the machine seat and provided with a blanking female die and a bending female die. A punching channel is formed in the upper portion of the lower die plate. The number of useddies is decreased, and the precision of parts is improved.

Description

technical field [0001] The invention relates to the technical field of die design, in particular to a composite die for blanking, bending and punching. Background technique [0002] Blanking refers to punching out parts of the required shape from the sheet metal, punching refers to punching holes of the required shape on the workpiece, and bending refers to bending the blank into parts with a certain angle and shape. The basic process method commonly used in forming. However, in reality, the stamping and forming of many parts requires blanking, punching, and bending, often requiring multiple molds and multiple equipment to complete the forming of the parts in sequence. This will cause the following disadvantages: (1) the number of molds and equipment required is large, the energy consumption is large, and the cost increases; (2) the transfer of parts between each equipment and the positioning operation on each pair of molds during the forming process It is cumbersome, wast...

AI Technical Summary

Problems solved by technology

This will cause the following disadvantages: (1) the number of molds and equipment required is large, the energy consumption is large, and the cost increases; (2) the transfer of parts between each equipment and the positioning operation on each pair of molds during the forming process It is cumbersome, wastes production time, and reduces production efficiency; (3) The positioning error and forming error of the parts on each pair of molds will accumulate, resulting in a large total dimensional error of the parts and affecting the dimensional accuracy of the parts

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