A connecting ring forging process

Abstract

The invention relates to a connecting ring forging process, which includes the following production steps: blanking-heating-forging-punching-inner hole-trimming-grinding-inspection-storage, wherein forging includes pre-forging and final forging, pre-forging adopts pre-forging Forging die, the final forging die is used for final forging, the punching die is used for punching the inner hole, and the trimming die is used for trimming. The forging process is divided into two processing steps: pre-forging and final forging. Pre-forging and final forging are carried out on different molds. The change of the side slope of the final forming boss from the table to the bottom avoids the folding defect of the ring main part and the connecting beam part, the welding workload of the workers is greatly reduced, the one-time pass rate of the product is greatly improved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of connection ring processing, in particular to a connection ring forging process. Background technique [0002] Open-type connecting rings for mining circular chains (mining connecting rings) are mainly used for double-chain scraper conveyors and reloaders in coal mines, and are used in connection with high-strength mining circular chains and scrapers. It is to transport the mined coal out, and its implementation standard is: MT / T71-1997 "Splitting Connecting Rings for Mining Circular Chains". [0003] The product structure of the existing connecting ring is shown in the attached drawing of the manual figure 1 , figure 2 As shown, it mainly includes two overlapping parts and an annular main part, the two overlapping parts are respectively connected to the two ends of the annular main part, and the inner hole of the annular main part is divided into two left and right holes through the connecting beam par...

AI Technical Summary

Problems solved by technology

The above-mentioned production process has the following technical defects: ①The forging die used in the forging process will have folding defects in the ring-shaped main part and the connecting beam part during the forging process, and the follow-up workers will have a lot of welding and repair work. Low efficiency; ②The edge trimming process is mainly carried out through the cooperation of the edge trimming punch and the edge trimming die. image 3 As shown, the punch of the trimming punch is flat. During the trimming process, the forging is bent and deformed to the inside, which causes the dimensional deformation of the middle part of the forging to be out of tolerance, and also directly causes the size of the two holes after punching the inner hole to be out of tolerance, so the trimming And after punching the inner hole, it needs to be reshaped on the mold, the production efficiency is low, and the labor intensity of the workers is high; ③There is currently no corresponding special punching mold for the inner hole punching operation, the punching operation is not standardized, the product quality is not uniform, and the safety factor is low

[0005] This application aims to solve the current forging and folding defects of connecting ring products, deformation after trimming and punching of forgings, and out-of-tolerance problems, so as to improve the one-time pass rate of products

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