Positioning assembly machining method of bent pipe

Abstract

The invention discloses a positioning assembly machining method of a bent pipe. The method comprises the following steps of, on a workpiece provided with a through hole and an inclined hole which arecommunicated with each other, reaming the inclined hole from the tail end of the inclined hole, and enabling the aperture of the reamed inclined hole to be matched with the outer diameter of a bent pipe sleeve; enabling the bent pipe to extend into the inclined hole from the through hole of the workpiece, and enabling a straight section of the bent pipe to be located in the through hole of the workpiece and a bent section of the bent pipe to be located in the reamed inclined hole of the workpiece; previously placing pasty brazing filler metal in brazing filler metal grooves reserved in the outer wall and the inner wall of the bent pipe sleeve, wherein the inner diameter of the bent pipe sleeve is matched with the outer diameter of the bent section of the bent pipe, and the outer diameter of the bent pipe sleeve is matched with the inner diameter of the reamed inclined hole; sleeving the bent pipe sleeve on the bent section of the bent pipe from the tail end of the inclined hole, and guaranteeing that the bent pipe sleeve blocks a circular seam between the bent section of the bent pipe and the reamed inclined hole; and putting the workpiece into a vacuum furnace, performing vacuum brazing, cooling, and then taking out from the furnace. By using the method, the technical problem of the positioning assembly of the bent pipe is solved; and meanwhile, the integrity of the workpieceis ensured.

Description

technical field [0001] The invention belongs to the technical field of aerospace equipment processing, and relates to a processing method for positioning and assembling an elbow. Background technique [0002] It is often necessary to install elbows on aerospace equipment workpieces, such as figure 1 As shown, the elbow is composed of a straight section and a bent section. There are through holes and oblique holes for assembling the elbow on the workpiece. Due to the existence of a bent section in the outer pipe, it is difficult to assemble, and it is difficult for the operator to install the bent pipe. The elbow is accurately inserted into the oblique hole on the workpiece through the hole on the workpiece, making the assembly process of the elbow inoperable and difficult to achieve. Contents of the invention [0003] The technical problem solved by the invention is to provide a processing method for positioning and assembling the bent pipe, which reduces the difficulty o...

AI Technical Summary

Problems solved by technology

[0002] It is often necessary to install elbows on aerospace equipment workpieces, such as figure 1 As shown, the elbow is composed of a straight section and a bent section. There are through holes and oblique holes for assembling the elbow on the workpiece. Due to the existence of a bent section in the outer pipe, it is difficult to assemble, and it is difficult for the operator to install the bent pipe. The elbow is accurately inserted into the inclined hole on the workpiece through the hole on the workpiece, making the assembly process of the elbow inoperable and difficult to achieve

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