Spot welding machine control system

A technology of control system and spot welding machine, which is applied in the direction of welding power supply, manufacturing tools, welding equipment, etc., can solve the problems of unstable welding, large spatter, poor anti-interference effect, etc. point firm effect

Active Publication Date: 2018-05-11
佛山市佛镁通用设备有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] At present, most of the common spot welding machine controllers have complex circuits, single control mode, poor anti-interference effect, no grid voltage compensation, and current ramp-up function; when the grid voltage is unstable and the working environment has electromagnetic interference, it will cause welding Unstable, large spatter, poor quality and consistency of solder joints

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Embodiment Construction

[0015] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] Such as Figure 1-9 Shown, a kind of spot welding machine control system of the present invention comprises EMI filter circuit, transformer rectification filter voltage stabilizing circuit, synchronous circuit, CPU program control circuit, starting circuit, drive circuit, other excitation type switching power supply circuit and pulse generation and In the output circuit, the EMI filter circuits IN1 and IN2 are connected to AC380V voltage, and are output from OUT1 and OUT2 to the control transformer through the filter LL6; through the transformer rectification, filtering and stabiliz...

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Abstract

The invention discloses a spot welding machine control system, comprising an EMI filtering circuit, a voltage transformation rectifying filtering voltage stabilizing circuit, a synchronous circuit, a CUP program control circuit, a starting circuit, a drive circuit, a separately excited switching power supply circuit, and a pulse generation and output circuit. The IN1 and IN2 of the EMI filtering circuit access AC380V voltage, and through a filter LL6, the voltage is output to a control transformer through an OUT1 and an OUT2. Through the voltage transformation rectifying filtering voltage stabilizing circuit, the voltage is transformed to AC28V and AC9V, and through rectification, filtering, and voltage stabilization, DC5V and DC24V are output to an operating circuit to supply power. The system is advantaged by simple structure, complete functions, and convenient adjustment. Net voltage automatic compensation and high anti-interference functions make the controller can reliably and stably operate in environment of unstable power grid voltage and high-strength electromagnetic interference. A current slowly-rising function effectively restricts welding spark from splattering, and welding spots are firmer.

Description

technical field [0001] The invention relates to the technical field of resistance welding machines, in particular to a control system of resistance spot welding machines. Background technique [0002] At present, most of the common spot welding machine controllers have complex circuits, single control mode, poor anti-interference effect, no network voltage compensation, and current ramp-up function; when the grid voltage is unstable and the working environment has electromagnetic interference, it will cause welding Unstable, large spatter, poor quality and consistency of solder joints. Contents of the invention [0003] The purpose of the present invention is to provide a spot welding machine control system, which has the advantages of simple structure, perfect function and convenient adjustment. [0004] The technical solution adopted by the present invention to solve the technical problem is: a spot welding machine control system, including EMI filter circuit, voltage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/24B23K11/11
CPCB23K11/11B23K11/24
Inventor 陈俊宇
Owner 佛山市佛镁通用设备有限公司
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