CN-122007553-A - Control method for pulse direct current hybrid welding and storage medium

CN122007553ACN 122007553 ACN122007553 ACN 122007553ACN-122007553-A

Abstract

The invention discloses a control method and a storage medium for pulse direct current hybrid welding, belonging to the technical field of welding control, wherein the control method comprises the steps of according to a feedback current average value, a feedback voltage average value and a pulse welding stage setting parameter of a pulse welding stage, a feedback current average value, a feedback voltage average value and a direct current welding stage initial setting parameter of a direct current welding stage, and obtaining the adjustment parameters of the direct current welding stage and the adjustment parameters of the pulse welding stage through calculation, and continuously obtaining the adjustment values of the waveform parameters of the pulse welding stage and the direct current welding stage according to the adjustment parameters. According to the invention, the feedback voltage and the feedback current in the welding process are collected, and the repeated parameter processing is carried out, so that the real-time and accurate adjustment of the pulse welding stage and the direct current welding stage is realized, and the stability of the welding process can be effectively ensured.

Inventors

SU LIHU
LI JIANG
HU JIAQI
HAN LIYING

Assignees

唐山松下产业机器有限公司

Dates

Publication Date: 20260512
Application Date: 20260330

Claims (10)

1. The control method for the pulse direct current hybrid welding is characterized by comprising the following steps of: Setting initial setting parameters of a pulse welding stage and initial setting parameters of a direct current welding stage; Calculating and obtaining a feedback current average value and a feedback voltage average value of a pulse welding stage; Calculating and obtaining adjustment parameters of a direct current welding stage according to the feedback current average value, the feedback voltage average value and the pulse welding stage setting parameters of the pulse welding stage; calculating a feedback current average value and a feedback voltage average value in a direct current welding stage; Calculating to obtain adjustment parameters of the pulse welding stage according to the feedback current average value, the feedback voltage average value and the initial setting parameters of the direct current welding stage; And calculating and obtaining the adjustment values of the waveform parameters of the pulse welding stage and the direct current welding stage according to the adjustment parameters and the initial setting parameters of the pulse welding stage and the adjustment parameters and the initial setting parameters of the direct current welding stage.
2. The method for controlling the pulse-dc hybrid welding according to claim 1, wherein the pulse-dc hybrid welding stage initial setting parameters and the dc hybrid welding stage initial setting parameters each specifically include: Initial setting parameters of pulse welding stage, i.e. setting current Setting voltage Setting time ; Initial setting parameters of DC welding stage, i.e. setting current Setting voltage Setting time 。
3. The method for controlling the pulse direct current hybrid welding according to claim 2, wherein the adjustment parameters of the direct current welding stage are calculated according to the feedback current average value, the feedback voltage average value and the pulse welding stage setting parameters of the pulse welding stage, and the formula is as follows: ; Wherein, the Indicating the adjusted hold time for the dc welding stage, Representing the feedback average current of the pulse welding phase, Representing the feedback average voltage of the pulse welding phase.
4. The method for controlling a pulse-dc hybrid welding according to claim 3, wherein the adjustment parameters of the pulse welding stage are calculated according to the feedback current average value, the feedback voltage average value and the dc welding stage initial setting parameters of the dc welding stage, and the formula is as follows: ; Wherein, the Represents the feedback average voltage change adjustment coefficient of the direct current welding stage, Represents the feedback average current change adjustment coefficient in the direct current welding stage, Indicating the adjusted hold time for the pulse welding phase.
5. The method according to claim 4, wherein the calculating the adjustment values of the waveform parameters of the pulse welding stage and the dc welding stage according to the adjustment parameters and the initial setting parameters of the pulse welding stage and the adjustment parameters and the initial setting parameters of the dc welding stage specifically comprises: According to the maintenance time after the pulse welding stage is adjusted And set time Deviation of (2) and the maintenance time after the adjustment of the DC welding stage And set time And (3) calculating and obtaining the adjustment value of the waveform parameters of the pulse welding stage and the direct current welding stage.
6. The method of claim 5, wherein the waveform parameters include a pulse welding peak current, a pulse welding base current, and a DC welding arc down slope.
7. The method according to claim 6, wherein the calculation formula of the peak current adjustment value of pulse welding is as follows: ; Wherein, the Indicating the adjustment factor of the pulse welding phase sustain time variation to the peak current, The adjustment coefficient of the maintenance time change to the peak current in the direct current welding stage is represented; Indicating the set peak current value, the peak current value, Representing the peak current after adjustment.
8. The method according to claim 6, wherein the calculation formula of the pulse welding basic value current adjustment value is as follows: ; Wherein, the An adjustment coefficient for the base current indicating a change in the hold time of the pulse welding stage; An adjustment coefficient for the base current indicating a change in the maintenance time of the DC welding stage; the set base value current is indicated, Indicating the adjusted base current.
9. The method according to claim 6, wherein the calculation formula of the dc welding arc down slope adjustment value is as follows: ; Wherein, the An adjustment coefficient for the arc drop slope representing the change in the maintenance time of the DC welding stage, An adjustment coefficient for the arc-down slope representing the change in the sustain time of the pulse welding stage, Indicating the set arc drop slope, Indicating the adjusted arc drop slope.
10. A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of the method according to any one of claims 1 to 9.

Description

Control method for pulse direct current hybrid welding and storage medium Technical Field The application relates to the technical field of welding control, in particular to a control method and a storage medium for pulse direct current hybrid welding. Background With the development of welding technology, gas metal arc welding is increasingly applied to actual welding operation, and the technology is more mature. The common consumable electrode gas shielded welding has two types of pulse welding and direct current welding, the pulse welding has high arc heat, is suitable for welding materials related to medium plates, is exemplified by a carbon steel welding wire with the diameter of the welding wire being 1.2mm, is suitable for welding relatively thin materials, is exemplified by a carbon steel welding wire with the diameter of the welding wire being 1.2mm, and is suitable for welding relatively thin materials, and is exemplified by a carbon steel welding wire with the diameter of the welding wire being about 80A-160A. The welding method used is different according to the position of the welding seam, such as vertical welding and butt backing welding, direct current welding is mostly used, and pulse welding is more common for flat fillet welding. When the workpiece is deformed or poor in workpiece formation and deviation occurs in the welding process, the length of the welding wire extending out of the welding gun, namely the dry extension, is changed, and the actual feedback current and the actual feedback voltage are changed and are deviated from the set current and the set voltage. When the dry extension becomes long, the arc is momentarily elongated, and the feedback voltage is higher than the set voltage, and when the adjustment is not performed, the heat input amount is pulled up, and defects such as undercut and burning of the contact tip may occur. When the dry extension is short, the arc is compressed, the feedback voltage is low, the heat input amount is reduced, and the problems that the welding wire cannot be melted, the arc breaks and the like can occur. Disclosure of Invention The invention aims to overcome the defects in the prior art and provides a control method and a storage medium for pulse direct current hybrid welding, which are used for adjusting pulse direct current waveform parameters in real time according to set parameters and feedback parameters so as to ensure welding stability. In order to achieve the above purpose, the invention is realized by adopting the following technical scheme: In a first aspect, the present invention provides a control method for pulse direct current hybrid welding, including: Setting initial setting parameters of a pulse welding stage and initial setting parameters of a direct current welding stage; Calculating and obtaining a feedback current average value and a feedback voltage average value of a pulse welding stage; Calculating and obtaining adjustment parameters of a direct current welding stage according to the feedback current average value, the feedback voltage average value and the pulse welding stage setting parameters of the pulse welding stage; calculating a feedback current average value and a feedback voltage average value in a direct current welding stage; Calculating to obtain adjustment parameters of the pulse welding stage according to the feedback current average value, the feedback voltage average value and the initial setting parameters of the direct current welding stage; And calculating and obtaining the adjustment values of the waveform parameters of the pulse welding stage and the direct current welding stage according to the adjustment parameters and the initial setting parameters of the pulse welding stage and the adjustment parameters and the initial setting parameters of the direct current welding stage. Further, the pulse welding stage initial setting parameters and the direct current welding stage initial setting parameters specifically include: Initial setting parameters of pulse welding stage, i.e. setting current Setting voltageSetting time; Initial setting parameters of DC welding stage, i.e. setting currentSetting voltageSetting time。 Further, according to the feedback current average value, the feedback voltage average value and the pulse welding stage setting parameter of the pulse welding stage, the adjustment parameter of the direct current welding stage is calculated and obtained, and the formula is expressed as follows: ; Wherein, the Indicating the adjusted hold time for the dc welding stage,Representing the feedback average current of the pulse welding phase,Representing the feedback average voltage of the pulse welding phase. Further, according to the feedback current average value, the feedback voltage average value and the initial setting parameter of the direct current welding stage, the adjustment parameter of the pulse welding stage is calculated and obtained, and the formula is as follows: ; Wherein,