Strip puncher pin connecting structure for powder forming equipment

Abstract

The invention provides a strip puncher pin connecting structure for powder forming equipment. The strip puncher pin connecting structure consists of a puncher pin stand, a strip puncher pin and threaded rods; a dovetail groove is formed in one end, in contact with the strip puncher pin, of the puncher pin stand; one end, in contact with the puncher pin stand, of the strip puncher pin is designed to be the shape fit with that of the dovetail groove; the puncher pin stand is in clearance fit with the strip puncher pin; and the puncher pin stand and the strip puncher pin are fixed by the threadedrods. The strip puncher pin connecting structure for the powder forming equipment does not need to adopt a welding fixing mode in the prior art, so that welding deformation is avoided, the perpendicularity and the parallelism of the strip puncher pin are ensured better; and damage to a material structure of the strip puncher pin due to high-temperature welding is avoided so that the life of the puncher pin is prolonged. In addition, when the strip puncher pin is damaged and is required to be replaced, an operator simply replaces the strip puncher pin with a new one, without replacing the strip puncher pin and the puncher pin stand at the same time, so that materials are saved and the production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of powder molding, and in particular relates to a long punch connection structure for powder molding equipment. Background technique [0002] When preparing cermets, hard alloys and other materials, powder metallurgy is usually used in industry, and its main production process includes batching, mixing, sieving, molding, sintering and post-processing. Powder molding is the most operable process in the production of cemented carbide, and it is a key process to ensure the precision, apparent quality and internal quality of the alloy blank. The powder forming of tungsten carbide long strip products is usually pressed by a fully automatic mechanical press. The punch connection structure of the existing long strip products is usually that the long strip punch is directly welded on the punch seat, such as figure 1 shown. This kind of punch connection structure often inevitably produces welding deformation, and t...

AI Technical Summary

Problems solved by technology

This kind of punch connection structure often inevitably produces welding deformation, and the verticality and parallelism of the punch cannot be guaranteed; high-temperature welding itself has an impact on the structure of the punch material, reducing the service life of the punch

At the same time, when the punch is damaged and needs to be replaced, the punch and the punch seat need to be replaced together, resulting in waste

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