Milling processing method for inner molding surface of opening end head of thin-walled structural member

Abstract

The invention relates to a milling processing method for the inner molding surface of an opening end head of a thin-walled structural member, which is characterized by comprising the following steps of: 1) putting a thin-walled structural member on a working table top of a milling machine with a locating benchmark surface as a bottom surface; 2) processing a web plate to reach the required dimension during a rough processing course, and reserving a 3-5 mm allowance on the edge strip; 3) mounting the web plate at a part pressing position of a pressing plate by adopting a multi-press point small-clamping force method with the top end of the edge strip as a pressing point in the finish machining process, and lining the outside of the web plate through an auxiliary support; 4) beginning from the end head of the opening of the part while cutting the inner molding surface of the end head, and processing in a layering and segmenting manner with small allowance, cutting in and cutting out in an arc while feeding the knife, and cutting in and cutting out for about 10 mm on each segment; 5) processing the middle part of the part by a common integral layered milling method after milling 2-3 segments. The method is used for changing the processing orbit of a vertical milling tool at the end head, so that the processing method is more scientific and safer.

Description

technical field [0001] The invention relates to a method for milling the inner surface of the opening end of a thin-walled structural part, which is suitable for milling the inner surface of the opening end of the thin-walled structural part in metal parts. Background technique [0002] In the past, the milling of metal thin-walled structural parts was the most difficult in milling. Originally, the method of integral layered milling was mainly used to process parts. Due to the poor rigidity of thin-walled parts, they are greatly affected by milling forces, and the machining dimensional accuracy is difficult to control. The more important thing is that the processing risk is relatively high, and the phenomenon of parts cutting is very easy to occur, resulting in the generation of waste products. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for milling the inner surface of the open end of a thin-walled ...

AI Technical Summary

Problems solved by technology

[0002] In the past, the milling of metal thin-walled structural parts was the most difficult in milling processing. Originally, the method of integral layered milling was mainly used to process parts. Due to the poor rigidity of thin-walled parts, they are greatly affected by milling forces, and the machining dimensional accuracy is not easy to control. The more important thing is that the processing risk is relatively high, and the phenomenon of parts cutting is very easy to occur, resulting in the generation of waste products

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