Mainboard of direct current-direct current (AC-DC) welding machine
A technology of AC/DC and welding machines, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of low component density, large splash, high noise, etc., and achieve high component density, high safety and practicality strong effect
Inactive Publication Date: 2009-12-16
上海尤耐克焊接设备制造有限公司
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Problems solved by technology
[0002] In the design of the existing AC and DC welding machine, the component density of the main board is low, which makes the whole main board bulky, and the functional defects lead to the shortage of the whole AC welding machine.
It is troublesome to adjust the welding specification during welding; the welding stability is not high, the spatter is large, the noise is high; the maintenance is difficult, waste of energy; the safety is not high, etc.
Method used
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Embodiment Construction
[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0019] The mainboard of the AC / DC welding machine proposed by the present invention consists of figure 1 As shown, it is mainly composed of 5 parts: primary inverter drive circuit, secondary inverter drive circuit, electric welding / argon welding / AC welding function switching circuit, overcurrent protection circuit and drive amplifier circuit; the electric welding / argon welding The / AC welding function switching circuit is connected, the switching circuit is connected with the primary inverter drive circuit and the secondary inverter drive control circuit, the overcurrent protection circuit is connected with the primary inverter drive circuit, and the primary drive circuit is connected with the drive amplifier circuit connected.
[0020] accordi...
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The invention discloses a mainboard of a current-direct current (AC-DC) welding machine, which mainly comprises five parts of a primary contravariant drive circuit, a secondary contravariant drive circuit, function switching circuits of electric welding, argon welding and AC welding, a current foldback circuit and a drive and amplifier circuit, wherein the function switching circuits of electric welding, argon welding and AC welding are connected; the switching circuits are connected with the primary contravariant drive circuit and the secondary contravariant drive and control circuit; the current foldback circuit is connected with the primary contravariant drive circuit; and the primary drive circuit is connected with the drive and amplifier circuit. The mainboard of an AC-DC welding machine can realize the sequential control of contravariant AC-DC and the control of corresponding functions, adopts drive signals of an advanced secondary inverter, and has strong performance, high safety, strong practicability, high element density and small mainboard volume.
Description
Technical field: [0001] The invention relates to a design of a main board of an electric welding machine, in particular to a design of a main board of an AC and DC welding machine. Background technique: [0002] In the design of the existing AC / DC welding machine, the component density of the motherboard design is low, which makes the entire motherboard bulky, and the functional defects lead to the shortage of the entire AC welding machine. It is troublesome to adjust the welding specification during welding; the welding stability is not high, the spatter is large, the noise is high; the maintenance is difficult, energy is wasted; the safety is not high, etc. Invention content: [0003] The purpose of the present invention is to provide a mainboard of an AC / DC welding machine with strong performance, high safety, strong practicability and high component density in view of the above-mentioned shortcomings in the prior art. [0004] In order to achieve the stated purpose, t...
Claims
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IPC IPC(8): B23K9/10
Inventor 叶泳津张子伟
Owner 上海尤耐克焊接设备制造有限公司