Fixed connection method of chip lifting hook piece

Abstract

A fixed connection method of a chip lifting hook piece sequentially comprises: a blanking process, a rough machining process of a locating hole, a finish machining process of a main locating hole, a assembly process of a connecting pin shaft thereof, a finish machining process of an auxiliary locating hole and a assembly process of a connecting pin shaft thereof; when in manufacturing, firstly carrying out the blanking operation to obtain the required lifting hook piece, then carrying out point welding on the lifting hook piece into a whole lifting hook piece, carrying out the rough machining process of a locating hole on the whole lifting hook piece, i.e. drilling a locating hole on the outside lifting hook piece, and tightening with a bolt, pressing the whole lifting hook piece, tightening the bolt, then carrying out overlaying to the whole lifting hook piece, carrying out the finish machining process of the main locating hole and the assembly process of the connecting pin shaft thereof after overlaying, then carrying out the finish machining process of the auxiliary locating hole and the assembly process of the connecting pin shaft thereof, and obtaining the fixedly connected lifting hook piece after machining. The invention not only has low requirement on the manufacturing equipment, and little effect factor, but also has little difficulty and better implementation effect.

Description

technical field [0001] The invention relates to a method for manufacturing a piece-type hook, in particular to a method for fixing and connecting hook pieces of a piece-type hook. Background technique [0002] Existing hooks are generally divided into two types: forged hooks and piece hooks. Forged hooks are forged from steel as a whole. The thickness of each piece of hook is not less than 20mm. When using, if the piece hook is damaged, you only need to replace the damaged hook piece instead of scrapping it as a whole. Therefore, compared with forged hook , The piece hook has a longer service life, a larger load capacity, and higher safety, so the piece hook is mostly used as a large lifting tonnage hook. [0003] However, the traditional piece hooks are mostly riveted by integral steel plates, which not only have high requirements for manufacturing equipment, but also are affected by many factors, making it difficult to manufacture. Contents of the invention [0004] Th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems existing in the prior art that have higher requirements for manufacturing equipment, more affected factors, and greater manufacturing difficulty, and provide a method that has lower requirements for manufacturing equipment and less affected factors. A method of manufacturing a piece hook with less manufacturing difficulty

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