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Seam welder electrode wheel synchronous control system and method

A synchronous control, electrode wheel technology, applied in the direction of roller electrode welding, etc., can solve the problems of decreased welding quality, inconsistent electrode wheel linear speed, etc., and achieve the effect of accurate welding process

Inactive Publication Date: 2012-01-11
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, when the inverter drives the motor to drive the electrode wheels at the same speed, the linear speeds of the two electrode wheels will be inconsistent, which will eventually lead to a decline in welding quality

Method used

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  • Seam welder electrode wheel synchronous control system and method
  • Seam welder electrode wheel synchronous control system and method
  • Seam welder electrode wheel synchronous control system and method

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Experimental program
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Embodiment Construction

[0020] Specific embodiments of the present invention The present invention will be described in detail with reference to the accompanying drawings.

[0021] The system consists of control panel, MCU controller, working electrode wheel, encoder, frequency converter, serial communication circuit, isolation circuit, signal amplification and filter circuit, and power supply circuit.

[0022] Such as figure 1 The power supply circuit shown in the figure provides power for the entire system. Between the control signal of the MCU and the signal amplification and filtering circuit, between the encoder output signal and the MCU are realized by an isolation circuit to realize the isolation of the internal circuit and the external circuit. When the system is working, the operator sets the rotation speed of the working electrode wheel on the control panel. The control panel and the MCU controller are connected through a serial communication circuit. According to the linear relationship b...

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Abstract

The invention relates to a seam welder electrode wheel synchronous control system and method for solving the problem that the linear speed of rotation is inconsistent because the diameters of a motor head of a seam welder are inconsistent due to abrasion, and relates to the control field of seam welder electrode wheel rotation. The invention is used for controlling the synchronous rotation of two electrode wheels. A coder is used for acquiring the speed signal of the working electrode wheel and feeding back the signal to an MCU (Microprogrammed Control Unit) controller, and a PWM (Pulse-Width Modulation) signal with certain frequency and duty ratio is generated through the analysis calculation of the MCU. The signal is used for controlling the rotation speed of the next layer of electrode wheel through isolation and filter amplification, and the electrode wheel is kept to have the same linear speed with the former layer of electrode wheel.

Description

technical field [0001] A seam welding machine electrode wheel synchronous control system and method relate to the field of seam welding machine electrode wheel rotation control. Background technique [0002] Seam welding is a basic form of resistance welding, usually with many welds forming a continuous seam weld. Usually, the two weldments are pressed between the two electrodes and the welding wheels in an overlapping assembly mode. When the weldments are pressed, the current is turned on, and the electrode wheels are rotated to drive the weldments to rotate for welding. In seam welding, the temperature of the electrode wheels is high during operation, and the wear is serious, and usually the wear degree of the two electrode wheels is different, which directly leads to the inconsistency of the diameters of the two electrode wheels. At this time, when the frequency converter drives the motor to drive the electrode wheels to run at the same speed, the linear speeds of the tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/06
Inventor 蒋磊张军张大森白立来宋永伦
Owner BEIJING UNIV OF TECH
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