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A method for controlling the stroke action of an electron gun isolating valve

An action control, electron gun technology, applied in electron beam welding equipment, valve devices, manufacturing tools, etc., can solve the problems of gun isolation valve stuck, control motor burnout, etc., to extend service life, prolong service life, and easy to maintain Effect

Active Publication Date: 2022-04-19
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Aiming at the problems that the gun isolation valve of the existing electron gun is easy to be mechanically stuck and the control motor is frequently burned out, the present invention provides a method for controlling the stroke action of the isolation valve of the electron gun

Method used

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  • A method for controlling the stroke action of an electron gun isolating valve
  • A method for controlling the stroke action of an electron gun isolating valve

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Embodiment 1

[0024] A method for controlling the stroke action of an electron gun gun isolation valve, characterized in that it comprises the following steps:

[0025] 1) According to the actual installation position of the gun isolating valve of the electron gun on site, without changing the original installation frame around the gun isolating valve, check the maximum amount that the valve stem of the gun isolating valve can be extended (the valve stem can extend up to 42mm) , redesign the T-shaped valve stem with thread length to meet the mechanical travel needs. Such as figure 1 As shown, the newly designed T-shaped valve stem is compared with the original valve stem: the T-shaped threaded part is 42mm longer than the original one, and the rest of the T-shaped valve stem structure remains unchanged. At the same time, design a fixed bracket that can hold two travel control detection limit switches, such as figure 2 shown. Compared with the original switch bracket, the new detection l...

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Abstract

The invention discloses a method for controlling the travel action of an electronic gun isolation valve. First, according to the actual installation position of the electronic gun isolation valve, the effective space for the travel action of the T-shaped valve stem of the gun isolation valve is calculated, and the T-shaped valve stem whose thread length meets the mechanical stroke requirements is designed. ; Design a fixed bracket that can install two detection limit switches; then replace the original valve stem on the gun isolation valve body with a newly designed T-shaped valve stem, replace the original fixed bracket with a newly designed fixed bracket, and install 2 Detect the limit switch; finally, control the opening and closing of the gun isolation valve and the precise stop of the valve stem through the double detection limit switch. The invention can avoid the mechanical jamming phenomenon of the gun isolation valve body, greatly prolongs the service life of the tungsten filament of the electron gun, reduces the replacement frequency of the tungsten filament, and ensures the welding quality of the workpiece.

Description

technical field [0001] The invention belongs to the technical field of iron and steel, and in particular relates to a welding electron gun. Background technique [0002] The electron gun chamber and the vacuum chamber of the electron gun in the beam welding chamber are two independent vacuum parts. In order to maintain high vacuum in the electron gun chamber when the vacuum chamber is inflated and opened, improve the life of the tungsten wire, and prevent the welding metal powder in the vacuum chamber from adhering to the electron gun chamber to cause high-voltage discharge, an isolation valve (that is, a gun isolation valve) is installed in the electron gun. [0003] The electron gun isolating valve operates in a vacuum environment. Normal workpiece welding process: [0004] When the welding chamber door is opened, the electron gun isolation valve should be in the closed state: to ensure the high vacuum environment of the electron gun chamber and to ensure the clean envir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00B23K15/00
CPCB23K15/0026B23K15/0046
Inventor 汪庆伟郑明哲沈延祥
Owner NANJING IRON & STEEL CO LTD
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