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Welding machine fault detecting and protecting system, and its method

A fault detection and protection system technology, applied in the direction of welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of poor system consistency and large performance impact, so as to protect welding parameters, reliable and effective detection, and avoid serious accidents. loss effect

Inactive Publication Date: 2005-07-20
SHANGHAI WTL WELDING EQUIP MFG CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The fault detection and protection system of the existing welding machine adopts an analog detection system, which is greatly affected by the performance of the components, and the consistency of the system is poor

Method used

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  • Welding machine fault detecting and protecting system, and its method
  • Welding machine fault detecting and protecting system, and its method
  • Welding machine fault detecting and protecting system, and its method

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Embodiment Construction

[0015] The welding machine fault detection and protection system of the present invention includes: a fault signal acquisition circuit 1 , a signal latch circuit 2 , a signal processing circuit 3 , and a display circuit 4 connected in sequence.

[0016] Such as figure 1 As shown: the fault signal acquisition circuit 1 of the present invention includes: an overvoltage signal acquisition circuit 11 , an overheat signal acquisition circuit 12 , an undervoltage signal acquisition circuit 13 , and an overcurrent signal acquisition circuit 14 . Since the above-mentioned sampling circuits are in the prior art, details will not be repeated here.

[0017] Such as figure 2 Shown: signal latch circuit 2 of the present invention receives the overcurrent, overvoltage, undervoltage signal from fault signal acquisition circuit 1, and it comprises:

[0018] Six in-phase buffer converters 4050, the over-current, over-voltage, and under-voltage signals are input to pins 3, 5, and 7 of the in...

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PUM

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Abstract

The present invention provides a welding machine failure detection and protection system and its adopted adopted method. It comprises successively circuit-connected failure signal acquisition circuit for acquiring failure signal of system; signal latch circuit for receiving failure signal from failure signal acquisition circuit and making buffer power amplification and latching said failure signal; signal processing circuit for receiving signal from signal latch circuit, and detecting and defining said signal failure; and display circuit for displaying failure information.

Description

technical field [0001] The invention relates to a fault detection and protection system of a welding machine and a method thereof, in particular to a digital fault detection and protection system of a welding machine and a method thereof. Background technique [0002] The fault detection and protection system of the existing welding machine adopts an analog detection system, which is greatly affected by the performance of the components and has poor system consistency. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a digital welding machine fault detection and protection system and its method, which can effectively detect and diagnose the fault type of the welding machine, and output relevant information for reference by maintenance personnel. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: a welding machine fault detection and pr...

Claims

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Application Information

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IPC IPC(8): B23K37/00
Inventor 尤志春
Owner SHANGHAI WTL WELDING EQUIP MFG CO LTD
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