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Electric signal acquiring method in consumable electrode arc welding

A technology of arc welding and acquisition method, which is applied in the direction of arc welding equipment, welding equipment, welding accessories, etc., can solve the problems affecting the reliability of voltage measurement results, and achieve the effect of improving reliability

Active Publication Date: 2017-12-29
耿正
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the contact resistance between the contact tip and the welding wire changes at any time and affect the reliability of the voltage measurement results in the welding circuit, and provides a method for collecting electrical signals in melting electrode arc welding

Method used

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  • Electric signal acquiring method in consumable electrode arc welding

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specific Embodiment approach 1

[0012] Specific implementation mode one: the following combination Figure 1 to Figure 2 Describe this embodiment, the electrical signal collection method in metal arc welding described in this embodiment,

[0013] The welding wire is connected to the conductive tip of the welding torch in a contact-type conductive connection, and is insulated from other parts of the welding torch. At the contact-type conductive connection point between the welding wire and the conductive tip of the welding torch, the corresponding position on one side of the welding wire is taken as the reference point for voltage collection; Between the inlet of the wire feeding tube and the wire reel, a connection point in contact with the welding wire is used as the equipotential sampling point of the reference point for voltage collection;

[0014] A voltage signal acquisition amplifier is used to acquire the voltage in the welding circuit.

[0015] In this disclosure, the structure of the welding torch ...

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Abstract

The invention discloses an electric signal acquiring method in consumable electrode arc welding, belongs to the technical field of welding, and solves the problem of influence on the voltage measurement result reliability in a welding loop by random change of the contact resistance between an electric conducting nozzle and a welding wire. Firstly, the welding wire is in contact electric connection with the electric conducting nozzle of a welding gun, and is insulated from other parts of the welding gun; the electric connecting point of the welding wire and the electric conducting nozzle of the welding gun is a voltage acquisition reference point; the electric connecting point of one welding wire is selected between an inlet of a wire feeding pipe of the welding gun and a welding wire disc as an equipotential sampling point of the voltage acquisition reference point; and then, a voltage signal acquisition amplifier is adopted to acquire voltage in the welding loop. The method is used for acquiring electric signals in the consumable electrode arc welding.

Description

technical field [0001] The invention relates to an electric signal collection method in melting electrode arc welding, and belongs to the field of welding technology. Background technique [0002] In the melting electrode arc welding control system, the acquisition of arc voltage is necessary, and it is one of the most important factors to determine the control effect. [0003] There are three ways to collect the arc voltage in the welding circuit of the traditional melting electrode arc welding system. The first and most commonly used method is to collect the arc voltage at the output end of the welding power source. The voltage drop of all links is collected together as the arc voltage; the second way: the arc voltage is collected at the welding torch connection end of the wire feeder, which avoids the influence of the welding cable voltage drop when the welding extension cable is too long; the third way: yes Select the position close to the contact tip on the welding tor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/095B23K9/32
CPCB23K9/095B23K9/32
Inventor 耿正
Owner 耿正