Manufacturing method of traveling wave tube casing capable of ensuring straightness of the casing and its manufacturing tooling

Abstract

The invention discloses a fabrication method and a fabrication tool of a housing of a traveling wave tube capable of guaranteeing straightness of the housing. The fabrication method of the housing of the traveling wave tube comprises the following steps: 1, selecting the housing of which the inside diameter has been spun; 2, processing the outside diameter of the housing of which the inside diameter has been spun; and 3, subsequently processing the housing of which the outside diameter has been processed so as to form the housing of the traveling wave tube. The fabrication method of the housing of the traveling wave tube further comprises the following steps before the step 3: providing a core rod; assembling the core rod and the housing of which the inside diameter has been spun into an integrated part, and changing the original thin-wall housing into a round rod structure of the core rod and the housing; processing the outside diameters of the assembled core rod and the housing of which the inside diameter has been spun; and taking the core rod out of the housing of which the outside diameter has been processed. The fabrication method and the fabrication tool of the housing of the traveling wave tube capable of guaranteeing the straightness of the housing have the advantage that the accuracies of the outside diameter and the straightness of the housing are guaranteed.

Description

technical field [0001] The invention belongs to the field of microwave electric vacuum device manufacturing, and relates to a manufacturing process of a traveling wave tube shell in a traveling wave tube slow wave system, in particular to a manufacturing method of a traveling wave tube shell capable of ensuring straightness of the tube shell and a manufacturing tooling thereof. Background technique [0002] The most common type of traveling wave tube is the helical traveling wave tube, and the main component of its high frequency part is a slow wave structure. The helical slow wave structure is mainly composed of a tube shell, a helix and a clamping rod, and the helix is ​​fixed by three clamping rods and then placed inside the tube shell. The inner diameter of the helix is ​​the channel of the electron beam in the traveling wave tube, which has high precision. The high-speed electron beam moves inside it, which determines that the inner hole of the helix has a high straight...

AI Technical Summary

Problems solved by technology

Spinning can only maintain the inner diameter size, and cannot guarantee the straightness of the shell

[0005] The straightness of the shell is guaranteed when the inner diameter of the shell is processed and the outer diameter is ground. However, the shell is a thin-walled structure. When grinding the shell, a certain pressure is generated on the thin-walled structure, which will The outer diameter of the circle is ground into pits or even small planes, which will affect the inner diameter of the processed high-precision size, so that the size of the outer diameter cannot be satisfied, and the straightness of the shell is difficult to guarantee

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