Splicing type stamping die

Abstract

The invention relates to a splicing type stamping die which comprises an upper die assembly and a lower die assembly. The upper die assembly is locked and disassembled through fixing bolts. The lower die assembly comprises a lower die seat, a material supporting block and at least two lower die splicing blocks which can be spliced, wherein the lower die splicing blocks surround the material supporting block and are connected to the lower die seat in a sliding mode. The material supporting block is of a lifting structure, the top face of the material supporting block is a part of a lower die surface, the inner side face formed by splicing all the lower die splicing blocks and the top face of the material supporting block can be spliced to form a complete lower die surface, and bolt holes are formed in the corners of the lower die seat. The upper die assembly comprises an upper die seat, an upper die body and pushing blocks, wherein the upper die body is fixedly arranged on the bottom face of the upper die seat, the bottom face of the upper die seat is an upper die surface corresponding to the lower die surface, and bolt holes are formed in the corners of the upper die seat. The pushing blocks surround the upper die body and correspond to the lower die splicing blocks one to one. The pushing blocks are used for pushing the corresponding lower die splicing blocks to be spliced when a workbench on a punch press goes downwards. The splicing type stamping die is simple in structure, convenient to use and low in cost.

Description

technical field [0001] The invention belongs to the field of moulds, in particular to a combined stamping die. Background technique [0002] When the stamping process is carried out on the press, the workpiece is often stuck on the lower die and is not easy to take out, which affects the continuity of production and the production efficiency is low. Material rod, elastic ejector device, etc., in order to take out the workpiece from the lower mold, but the impact type punching rod will exert an impact force on the workpiece, which will not only cause damage to the workpiece, but also cause the workpiece to be disordered under the action of the impact force. The pop-up and scattered, the scene is chaotic, there are certain safety hazards, which is not conducive to automatic production; when using the elastic lifting device, it is usually set as a spring or elastic rubber to provide elastic force, the elastic force is related to the deformation, and the elastic force is a varia...

AI Technical Summary

Problems solved by technology

[0002] When the stamping process is carried out on the press, the workpiece is often stuck on the lower die and is not easy to take out, which affects the continuity of production and the production efficiency is low. Material rod, elastic ejector device, etc., in order to take out the workpiece from the lower mold, but the impact type punching rod will exert an impact force on the workpiece, which will not only cause damage to the workpiece, but also cause the workpiece to be disordered under the action of the impact force. The pop-up and scattered, the scene is chaotic, there are certain safety hazards, which is not conducive to automatic production; when using the elastic lifting device, it is usually set as a spring or elastic rubber to provide elastic force, the elastic force is related to the deformation, and the elastic force is a variable force , the performance will decrease after long-term use, and the elastic elements need to be replaced regularly, which is costly and is only used to provide elastic ejection force, which cannot guarantee that the workpiece will be ejected as required under the action of the ejection force. For workpieces with complex surface structures, the ejector The material function cannot be guaranteed, and the problem of material jams cannot be avoided. Once a material jam occurs, the continuous elastic force will obliquely jam the workpiece into the mold, making it more difficult to take out the workpiece, and even damage the mold surface.

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