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Method and system for teaching tracing of welding seam of electron beam welding machine

A technology of electron beam welding and electron beam, which is applied in the direction of electron beam welding equipment, welding equipment, metal processing equipment, etc., can solve the problem of low precision and achieve the effect of avoiding damage

Active Publication Date: 2017-02-22
GUILIN THD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem of low precision existing in the existing method of locating the weld by human experience through the optical observation system, and provides a method and system for teaching and tracing of the weld seam of an electron beam welder

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  • Method and system for teaching tracing of welding seam of electron beam welding machine
  • Method and system for teaching tracing of welding seam of electron beam welding machine
  • Method and system for teaching tracing of welding seam of electron beam welding machine

Examples

Experimental program
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Effect test

Embodiment 1

[0075] A method for teaching and tracing of electron beam welding seams based on table motion welding realized by the above system, such as image 3 As shown, it specifically includes the following steps:

[0076] The first step: preparation work.

[0077] ① Place the weldment 11 in the vacuum working chamber 7 .

[0078] ②Close the door of the studio, start the vacuum unit to exhaust the electron gun 6 chamber and the vacuum studio 7.

[0079] ③Setting parameters: acceleration voltage U a Set according to the requirements of the working voltage, generally the rated voltage; teach the electron beam current I b The value range is 0.01~1mA; the value range of the discrete detection moving distance δ is 0.01~0.1mm; the value range of the secondary electronic signal threshold coefficient α is 0.2~0.5.

[0080] ④ After the vacuum conditions of the electron gun chamber 6 and the vacuum chamber 7 are satisfied, select the working state of the workbench movement teaching and traci...

Embodiment 2

[0091] A method for teaching and tracing of electron beam welding seams based on table motion welding realized by the above system, such as image 3 As shown, it specifically includes the following steps:

[0092] The first step: preparation work.

[0093] ① Place the weldment 11 in the vacuum working chamber 7 .

[0094] ②Close the door of the studio, start the vacuum unit to exhaust the electron gun 6 chamber and the vacuum studio 7.

[0095] ③Setting parameters: acceleration voltage U a Set according to the requirements of the working voltage, generally the rated voltage; teach the electron beam current I b The value range is 0.01~1mA; the value range of the discrete detection moving distance δ is 0.01~0.1mm; the value range of the secondary electronic signal threshold coefficient α is 0.2~0.5.

[0096] ④ After the vacuum conditions of the electron gun chamber 6 and the vacuum chamber 7 are satisfied, select the working state of the workbench movement teaching and traci...

Embodiment 3

[0108] A method of teaching and tracing of electron beam welder weld seam based on electron beam partial sweep welding realized by the above system, such as Figure 4 As shown, it specifically includes the following steps:

[0109] The first step: preparation work.

[0110] ① Place the weldment 11 in the vacuum working chamber 7 .

[0111] ②Close the door of the studio, start the vacuum unit to exhaust the electron gun 6 chamber and the vacuum studio 7.

[0112] ③Setting parameters: acceleration voltage U a Set according to the requirements of the working voltage, generally the rated voltage; teach the electron beam current I b The value range is 0.01~1mA; the bias sweep current discrete change step distance μ is set as the minimum resolution value of 1 bias sweep current digital setting; the value range of the secondary electronic signal threshold coefficient β is 0.2~0.5.

[0113] ④ After the vacuum conditions of the electron gun chamber 6 and the vacuum chamber 7 are sa...

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Abstract

The invention discloses a method and system for teaching tracing of a welding seam of an electron beam welding machine. By virtue of a moving working table or a deflection scanning power supply, an electron beam spot movement track intersects with a welding seam track; and when an electron beam spot falls on the welding seam, a secondary electronic signal value Ie apparently becomes smaller suddenly; a midpoint of a position coordinate corresponding to the area where the secondary electronic signal value Ie apparently becomes smaller suddenly is detected and regarded as a central line position of the cross section of the welding seam; and a feature point coordinate is positioned according to the principle. The method and the system disclosed by the invention can be used for quickly and accurately performing teaching tracing on the welding seam, so as to avoid the problem of low precision of a method for positioning the welding seam according to human experience.

Description

technical field [0001] The invention relates to the technical field of electron beam processing equipment, in particular to a method and system for teaching and tracing of electron beam welding seams. Background technique [0002] Electron beam welding machine is a kind of welding equipment with excellent performance, but this kind of equipment needs to work in a vacuum environment, which brings great inconvenience to the observation and monitoring of the welding process. At present, electron beam welding machines generally monitor the welding process through observation windows, cameras and other means. Although this optical observation system is intuitive to observe and easy to operate, it has major defects in the precise teaching and tracking of weld seams: [0003] 1. The parallax of the optical observation system relies on human experience to correct, lacks quantifiable judgment parameters, and has high subjective randomness. [0004] 2. The optical observation system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K15/06
CPCB23K15/0026B23K15/0053B23K15/06
Inventor 韦寿祺黄小东费翔秦玉江陆苇郭华艳王建辉梁祖明王宗坤唐强
Owner GUILIN THD TECH CO LTD
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