Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thin double-wire digital soft switch inverter welding power source system and control method thereof

A technology of inverter welding power supply and soft switch, which is applied in welding equipment, manufacturing tools, arc welding equipment, etc., can solve the problems of strong electromagnetic interference at the welding site, difficulty in eliminating electromagnetic interference of welding wire, and high communication speed requirements, so as to improve Electromagnetic compatibility and reliability, improve welding quality, reduce the effect of electromagnetic interference

Active Publication Date: 2010-12-15
EAST GRP CO LTD
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these high-speed welding equipment is the split structure, which requires mutual communication to achieve coordinated control, requires high communication speed, is easily affected by strong electromagnetic interference on the welding site, and the equipment is large in size and high in cost.
In addition, among the above-mentioned high-speed welding equipment, most of the inverter welding power supply equipment is a hard switch mode, which is in a hard-on and hard-off state during work, which has a large potential safety hazard and is not energy-saving.
In the above-mentioned twin-wire welding method, no matter which method, there are still certain problems in welding stability and weld quality, mainly because the mutual electromagnetic interference between the two welding wires is difficult to eliminate, and the spatter is relatively large.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thin double-wire digital soft switch inverter welding power source system and control method thereof
  • Thin double-wire digital soft switch inverter welding power source system and control method thereof
  • Thin double-wire digital soft switch inverter welding power source system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A digital soft-switching inverter welding power supply system for thin twin wires, such as figure 1 As shown, it includes an over-voltage and under-voltage protection detection circuit 109 installed in the same welding power supply chassis with an integrated structure, a human-computer interaction system 110, an ARM main controller 108 with a welding process expert database software system built in, two A finite bipolar soft-switching full-bridge inverter main circuit 2 with the same circuit structure, and a drive and detection circuit 3 with the same circuit structure.

[0048] Wherein, the limited bipolar soft-switching full-bridge inverter main circuit 2 uses an insulated gate bipolar transistor IGBT as a switching element; the limited bipolar soft-switching full-bridge inverter main circuit 2 includes sequentially connected primary rectifier A filter circuit 101 , a high frequency inverter circuit 102 , a power transformer circuit 103 , and a secondary rectification...

Embodiment 2

[0075] Such as Figure 8 As shown in the present invention, a control method of a thin twin wire digital soft-switching inverter welding power supply system comprises the following steps:

[0076] Step A, start the system and initialize the system parameters;

[0077] Step B, the ARM main controller 108 sends a welding start signal to the human-computer interaction system 110, and at the same time the ARM main controller 108 receives and acquires welding parameters;

[0078] Step C, the ARM main controller 108 invokes the arc striking pulse waveform function to start arc striking;

[0079] Step D, if arc striking is unsuccessful, return to step C;

[0080] If the arc ignition is successful, enter the normal welding process and enter step E;

[0081] Step E, judging the selected welding method, and executing the corresponding control subroutine according to the selected welding method, including:

[0082] If the welding method is pulse MIG welding, enter the pulse MIG weldi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of welding equipment, in particular to a thin double-wire digital soft switch inverter welding power source system and a control method thereof. The system comprises over-voltage under-voltage protection and detection circuits placed in the same welding power source case by adopting an integrated structure, a man-machine interaction system, an ARM master controller in which a welding process expert database software system is placed, two limited bipolar soft switch full-bridge inverter main circuits with the same structure, and two drive and detection circuits with the same structure, wherein the limited bipolar soft switch full-bridge inverter main circuits take insulated gate bipolar transistors (IGBT) as switching elements. The system can improve the welding efficiency on the premise of ensuring the welding quality and the welding stability, effectively reduce the influence of electromagnetic interference of a welding site and eliminate mutual electromagnetic interference between two welding wires, has high safety performance, can reduce equipment volume and lower equipment cost, and is comparatively energy-saving.

Description

Technical field: [0001] The invention relates to the technical field of welding equipment, in particular to a fine twin-wire digital soft-switch inverter welding power supply system and a control method thereof. Background technique: [0002] The rapid development of the manufacturing industry has promoted the emergence and development of new high-efficiency automatic welding technology. The traditional single-wire welding system improves production efficiency by increasing the line energy, but excessively increasing the working current in single-wire welding will cause many problems, mainly welding defects such as hump weld bead and undercut. [0003] The symbol of high-efficiency welding is to improve welding efficiency on the premise of ensuring welding quality. There are many mature high-efficiency welding methods for the welding of medium and thick plates, among which twin-wire / multi-wire welding is a main method of high-efficiency welding. Compared with single-arc we...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10B23K9/095B23K9/16
Inventor 薛家祥
Owner EAST GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com