Welding machine output characteristic control method

A technology of output characteristics and control methods, applied in the direction of digital control, adaptive control, general control system, etc., can solve the problems that the external characteristics of the welding machine are easily affected by the performance of the device, and the consistency is not good, so as to enrich the external interface and communication ability, improved service life and range of use, and short development cycle
CN1640603AInactive Publication Date: 2005-07-20SHANGHAI WTL WELDING EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI WTL WELDING EQUIP MFG CO LTD
Publication Date
2005-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to an output characteristic control method of welding machine. Said method includes the following steps: 1. preselecting correspondent welding method and presetting correspondent parameter; 2. judging that the welding operation is started or not; 3. electric arc is ignited or not; 4. judging that the welding proces is stable or not, namely, is identical to the preset parameter or not, and according to the concrete welding process adaptatively regulating welding machine output to obtain required output characteristics; and 5. judging state of welding gun with and combining welding mode, judging that the arc is blown out or not, otherwise, repeating step 4 to step 5.
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Description

technical field

[0001] The invention relates to a method for controlling output characteristics of a welding machine. Background technique

[0002] The output characteristics of the analog welding machine are all obtained by hardware circuits. The acquisition of an output characteristic requires the design of a corresponding hardware circuit, which increases the cost of the welding machine. At the same time, the analog circuit is easily affected by the performance of the device, and the consistency is not good. For example, the invention patent "fully integrated control multi-functional thyristor inverter welding machine" discloses a fully integrated control multi-functional thyristor inverter electric welding machine. Circuit, main transformer, output rectifier circuit, reactor, characterized in that the integrated chip LM324 is used to form the external characteristic control circuit to obtain the required output characteristics of the welding machine, that is, the integra...

Claims

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