Electrogas welding arc length controller based on FPGA (Field Programmable Gate Array)

The invention discloses an electrogas welding arc length controller based on FPGA (Field Programmable Gate Array), comprising three trolley walking given circuits, a motor voltage negative feedback and current positive feedback circuit, an isolation optocoupler circuit, an AD conversion circuit, a p...

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Bibliographic Details
Main Authors GAO YUNHUO, HUANG JUN, FANG CHENFU, YAN WENYANG
Format Patent
LanguageChinese
English
Published 25.08.2010
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:The invention discloses an electrogas welding arc length controller based on FPGA (Field Programmable Gate Array), comprising three trolley walking given circuits, a motor voltage negative feedback and current positive feedback circuit, an isolation optocoupler circuit, an AD conversion circuit, a positive and negative welding gun retaining and given circuit, a welding control signal circuit, an FPGA control circuit, a direct current motor driving circuit and a welding gun swinging control circuit. The invention has the advantages of wire feeding with equal speed and climbing of the trolley with variable speed, and can better control the stability of arc during welding.
Bibliography:Application Number: CN20101150887