1500A all-digital inverter soft switching submerged arc welder wire feeding system control circuit
A submerged arc welding machine and wire feeding system technology, which is applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problem of unstable control of wire feeding control, affecting the working voltage of photocouplers, Problems such as the failure of the photocoupler to work normally, achieve the effect of stable operation and improved work efficiency
Inactive Publication Date: 2015-07-01
唐山长城电焊机总厂有限公司
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Problems solved by technology
[0002] When the existing submerged arc welding machine is working, the excitation coil of the motor will produce voltage fluctuations. Since the photocoupler and the excitation coil of the motor share a power supply, the voltage fluctuations generated by the excitation coil of the motor will affect the operating voltage of the photocoupler, making the photocoupler Unable to work normally, resulting in unstable wire feeding control and wire feeding trolley control
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[0011] The present invention will be further described below in conjunction with the accompanying drawings.
[0012] This example discloses a 1500A full digital inverter soft switch submerged arc welding machine wire feeding system control circuit, the specific connection structure is shown in the appendix figure 1 And attached figure 2 .
[0013] The diodes D1, D2, D3, and D4 respectively form two full-bridge rectification circuits, that is, rectification circuit 1 and rectification circuit 2. The power supply is AC145V, which are respectively connected to the negative poles of diodes D1, D2, D3, and D4 to supply power to the two rectification circuits respectively. The rectifier circuit 1 is connected to two photocouplers 3 and 4, and the photocouplers 3 and 4 are MOC3023. The photocoupler 3 is connected to the wire feeding control, and the photocoupler 4 is connected to the wire feeding trolley control. The control signal passes through the control photocoupler 3 , 4 on...
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A 1500A all-digital inverter soft switching submerged arc welder wire feeding system control circuit comprises a power supply, rectifier circuits, and photoelectric couplers. The control circuit is characterized in that two rectifier circuits are arranged, the power supply are connected with the two rectifier circuits, the rectifier circuit 1 is connected with the photoelectric coupler 3 and the photoelectric coupler 4, the photoelectric coupler 3 is in control connection with fed wires, the photoelectric coupler 4 is in control connection with a wire feeding trolley, the photoelectric coupler 3 and the photoelectric coupler 4 are controlled by a control signal, and the rectifier circuit 2 is connected with a motor excitation coil. By adopting the control circuit, the problem of unstable wire feeding due to the fact that control circuits CN1 and CN2 and a motor excitation coil share a power supply in the prior art is eliminated, damage to the components and shapeless welding are avoided, a motor can run smoothly, and the work efficiency is improved.
Description
technical field [0001] The invention relates to a wire feeding system control circuit of a 1500A full digital inverter soft switch submerged arc welding machine, which belongs to the field of full digital inverter soft switch submerged arc welding machines. technical background [0002] When the existing submerged arc welding machine is working, the excitation coil of the motor will produce voltage fluctuations. Since the photocoupler and the excitation coil of the motor share a power supply, the voltage fluctuations generated by the excitation coil of the motor will affect the operating voltage of the photocoupler, making the photocoupler It cannot work normally, resulting in unstable wire feeding control and wire feeding trolley control. Contents of the invention [0003] The purpose of the present invention is to provide a control circuit for a wire feeding system of a fully digital inverter soft switch submerged arc welding machine in view of the problems existing in t...
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Login to View More IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 李福清秦宏伟李国伟李锁刘思睿
Owner 唐山长城电焊机总厂有限公司