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Ultrasonic-assisted electric arc welding device

An arc welding and ultrasonic-assisted technology, which is applied in the direction of arc welding equipment, welding equipment, welding accessories, etc., can solve problems such as coarse joint structure grains, limited joint service performance, poor plastic toughness of joints, etc., to promote interaction and avoid High current and high-frequency high-voltage pulse damage and reduce the effect of weld porosity

Pending Publication Date: 2022-04-15
JIANGSU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Arc welding is an extremely widely used and indispensable welding method. However, the current arc welding joints often have large porosity and coarse grains in the joint structure, resulting in poor ductility and low strength of the joints, which limits the further improvement of the service performance of the joints. improve

Method used

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  • Ultrasonic-assisted electric arc welding device
  • Ultrasonic-assisted electric arc welding device
  • Ultrasonic-assisted electric arc welding device

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Experimental program
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Effect test

Embodiment 1

[0028] Installation process

[0029] The ultrasonic-assisted arc welding device mainly includes an ultrasonic signal generator, an isolation coupling device, an automatic switch device, and a chassis body. The front side of the chassis body includes the ultrasonic signal peak current at the top, the ultrasonic signal peak voltage, and the ultrasonic signal frequency display. Ultrasonic signal voltage adjustment knob, ultrasonic signal current adjustment knob, ultrasonic signal pulse width adjustment knob, ultrasonic signal generator and automatic switching device power supply switch, ultrasonic signal frequency gear knob.

[0030] The invention provides an ultrasonic assisted arc welding device, which includes a chassis body 1, the first layer inside the chassis body 1 is an ultrasonic signal generator, the ultrasonic signal generator includes a DC voltage regulating power supply 23 and a half-bridge inverter circuit 31, and the ultrasonic auxiliary The arc welding device swit...

Embodiment 2

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0039] Installation process

[0040] The ultrasonic assisted arc welding device mainly includes an ultrasonic signal generator, an isolation coupling device, an automatic switch device, and a chassis body. The front side of the chassis body includes the peak current, peak voltage, and frequency Hz display at the top, and the voltage adjustment knob on the upper part of the front side of the chassis. Current adjustment knob, pulse width adjustment knob, ultrasonic signal generator and automatic switching device power supply switch, ultrasonic signal frequency gear knob.

[0041]The invention provides an ultrasonic assisted arc welding device, which includes a chassis body 1, the first layer inside the chassis body 1 is an ultrasonic signal generator, the ultrasonic signal ...

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Abstract

The ultrasonic-assisted electric arc welding device comprises a device case body, and an ultrasonic signal generator, an isolation coupling circuit and an automatic switching device are fixedly installed in the case body. Isolation protection is conducted on the ultrasonic power source and the isolation coupling device through the multiple sets of parallel alternating current contactors, the ultrasonic power source is prevented from being damaged by large currents and high-frequency high-voltage pulses in the welding process, interaction between the welding power source and the ultrasonic power source can be effectively promoted, ultrasonic signals are well coupled into welding arcs, and the welding quality is improved. And an ultrasonic arc is excited to act on the whole welding process from arc starting to arc extinguishing. A voltage detection device and a Hall current detection device are designed, the electric signal characteristics of the output end of the welding machine can be automatically recognized, and automatic coupling and cut-off control over an ultrasonic signal in the whole welding process from arc starting to arc extinguishing is achieved.

Description

technical field [0001] The invention relates to an ultrasonic assisted arc welding device, in particular to an auxiliary welding device for automatically leading an ultrasonic signal into a welding arc so as to excite an ultrasonic arc. Background technique [0002] With the rapid development of industrial technology, the reliability requirements for material connection technology are getting higher and higher. Arc welding is an extremely widely used and indispensable welding method. However, the current arc welding joints often have large porosity and coarse grains in the joint structure, resulting in poor ductility and low strength of the joints, which limits the further improvement of the service performance of the joints. improve. In view of the above problems, the present invention designs and develops an ultrasonic-assisted arc welding device, which automatically couples the ultrasonic signal into the welding arc through the isolation coupling device, excites the ultr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/09B23K9/32
Inventor 雷玉成叶茂成王泽宇朱强赵信毅陈浩
Owner JIANGSU UNIV
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