CN206230131U - Without splashing soft arc light direct current sheet arc welding machine - Google Patents

Abstract

The utility model provides one kind without splashing soft arc light direct current sheet arc welding machine, and primary winding is provided with multiple tap changers, and tap changer is connected with tap changer respectively, for the output voltage regulation of secondary coil；The input pressure regulation joint and tap changer of primary winding are connected with input power；The output end of secondary coil is respectively equipped with three output pressure regulation joints, wherein, output pressure regulation joint is connected with pressure output switch and pressure output switch with the input of rectifier bridge respectively；The output end of rectifier bridge is in parallel with electric capacity；Reactor constitutes filter circuit with capacitor, thick plates tap is provided with the middle part of reactor and is connected with welding machine electric power output end；Welding machine electric power output end is divided into thin plate, two kinds of way of outputs of slab and solves conventional transformer structure arc-welding machine by changing the coefficient of coup of primary winding and secondary coil, the software feature output steady power supply of arc-welding for adapting to arc welding characteristic requirements substantially is reached with a transformer, the excessive spatter occurred during traditional arc-welding machine use is solved the problems, such as.Greatly reduce the noise phenomena that transformer and welding process occur.

Description

Non-splash weak arc light DC thin plate arc welding machine

Technical Field

The utility model provides a no-splash weak arc light direct current thin plate arc welding machine is the improvement to traditional arc welding machine circuit structure, belongs to arc welding equipment technical field.

Background

An arc welding machine is a soft characteristic power supply device for supplying electric energy to arc welding, and the arc welding machine must have the main electric performance of the arc welding to ensure the stability of arc striking and arc combustion and ensure the smooth proceeding of welding work.

The traditional AC arc welder has several types of moving coil, moving iron and tap, and features large power consumption, unstable small current, no welding of thin plate, high noise and serious splash. The small current working stability is better than that of an alternating current welding machine, the welding performance of a thin plate is poor, a plate smaller than 2 mm cannot be welded normally, and electromagnetic radiation brought by frequency conversion is provided.

Disclosure of Invention

The utility model provides a no light arc light direct current sheet metal arc welding machine that splashes has solved traditional transformer structure arc welding machine and has passed through the coupling coefficient that changes primary coil and secondary coil, reaches the soft characteristic output arc-welding stationary power that can adapt to the arc-welding characteristic requirement basically with a transformer, has solved the serious problem of splashing that appears in traditional arc welding machine use. The noise phenomenon of the transformer and the welding process is greatly reduced.

A no light arc light direct current sheet metal arc welding machine that splashes, its characterized in that:

the device comprises a primary coil, a secondary coil, a rectifier bridge, a capacitor, a reactor, a voltage regulating switch, a voltage regulating output switch, a fan and a fan switch; the primary coil is provided with a plurality of voltage regulating taps, and the voltage regulating taps are respectively connected with the voltage regulating switches and used for regulating the output voltage of the secondary coil; the input voltage regulating joint and the voltage regulating switch of the primary coil are connected with an input power supply; the output end of the secondary coil is respectively provided with three output voltage regulating connectors, wherein the output voltage regulating connectors are respectively connected with the voltage output switch and the input end of the rectifier bridge; the output end of the rectifier bridge is connected with the capacitor in parallel; the reactor and the capacitor form a filter circuit, and a thick plate welding tap is arranged in the middle of the reactor and connected with the power output end of the welding machine; the power output end of the welding machine is divided into two output modes of a thin plate and a thick plate; the fan is connected with the input power supply through a fan switch.

The utility model has the advantages of: the adjustable mutual inductance transformer is adopted to change the output voltage of the secondary coil, so as to achieve the current regulation and voltage regulation of arc welding, and the tap voltage regulation of the primary coil is adopted. The voltage of the secondary coil is rectified in a bridge mode, a high-capacity capacitor assembly is connected in parallel between the positive electrode and the negative electrode of the output end of the bridge rectifier, and a reactor is connected in series with the positive electrode of the output end of the bridge rectifier to be used as a direct current power supply for arc welding. By changing the transformer capacity, the secondary output voltage, the capacitance capacity and the inductive reactance value of the reactor, series direct current arc welding machines with different requirements can be easily designed. The output characteristic is idealized by three independent parts. The utility model discloses it is good to have the high all-round welding quality of welding efficiency, and welding process does not have molten iron, the arc light that splashes weak, the noise is low, operating performance is good, has solved the shortcoming that traditional electric welding can not weld below the 2.0 millimeters to 0.5 millimeter board.

Drawings

FIG. 1 is a schematic diagram of a circuit diagram of the present invention;

in the figure, L1, primary coil; l2, secondary coil; B. a rectifier bridge; C. a capacitor; q, a reactor; k1, voltage regulating switch; k2, a voltage regulation output switch; D. a fan; k3, a fan switch; u, input power supply; v, welding machine power supply output terminal. 1. Inputting a voltage regulating joint; 2-8, inputting a voltage regulating joint; 9-10, an output voltage regulating joint; 11. and (5) welding a tap on the thick plate.

Detailed Description

As shown in fig. 1, the utility model mainly comprises a primary coil L1, a secondary coil L2, a rectifier bridge B, a capacitor C, a reactor Q, a voltage regulating switch K1, a voltage regulating output switch K2, a fan D, and a fan switch K3; wherein,

the primary coil L1 is provided with an input voltage regulating joint 1 and input voltage regulating joints 2-8, and the input voltage regulating joints 2-8 are respectively connected with a voltage regulating switch K1 and used for regulating the output voltage of the secondary coil L2;

the input voltage regulating joint 1 of the primary coil L1 and the voltage regulating switch K1 are connected with a power supply U and are used as the power supply input of the welding machine;

the output end of the secondary coil L2 is respectively provided with three output voltage regulating connectors 8, 9 and 10, wherein the output voltage regulating connectors 9 and 10 are connected with a voltage output switch K2, and the output voltage regulating connector 8 and the voltage output switch K2 are connected with the input end of a rectifier bridge B; the output end of the rectifier bridge B is connected with the capacitor C in parallel; the reactor Q and the capacitor C form a filter circuit, and the middle part of the reactor Q is provided with a thick plate welding tap 11 connected with the power output end V of the welding machine; the output end V of the welding machine power supply is divided into two output modes of a thin plate and a thick plate; and the fan D is connected with an input power supply U through a fan switch K3.

The working process of the utility model is as follows: the primary coil L1 is input into the voltage regulating joint 1 and the voltage regulating joints 2-8 to be regulated through the voltage regulating switch K1 and connected to the input power U; the secondary coil L2 voltage regulating joint 8 and the voltage regulating joints 9 and 10 are used for regulating voltage through a voltage regulating output switch K2 and are connected to the input end of the rectifier bridge B; the output end of the rectifier bridge B is connected with a capacitor C in parallel, and the capacitor C has two functions, (1) the output voltage (effective value) of the secondary coil L2 is boosted to peak voltage for welding and arc starting; (2) the direct current fluctuation of the voltage output value of the secondary coil L2 is reduced by the filtering function; the output end of the rectifier bridge B is connected in series with a reactor Q with a tap, and the tap of the reactor Q is respectively used as an arc welding power supply for thick plates and thin plates; the reactor Q is used for limiting the short-circuit current of the electric arc welding power supply; meanwhile, the inductance filtering action of the inductance coil Q is also utilized to stabilize the arc welding current; the DC arc welding soft characteristic power supply required by arc welding is realized through the reactance value of the power supply.

Claims (1)

1. The utility model provides a no light arc light direct current sheet metal arc-welding machine that splashes which characterized in that:

the device comprises a primary coil, a secondary coil, a rectifier bridge, a capacitor, a reactor, a voltage regulating switch, a voltage regulating output switch, a fan and a fan switch; the primary coil is provided with a plurality of voltage regulating taps, and the voltage regulating taps are respectively connected with the voltage regulating switches and used for regulating the output voltage of the secondary coil; the input voltage regulating joint and the voltage regulating switch of the primary coil are connected with an input power supply; the output end of the secondary coil is respectively provided with three output voltage regulating connectors, wherein the output voltage regulating connectors are respectively connected with the voltage output switch and the input end of the rectifier bridge; the output end of the rectifier bridge is connected with the capacitor in parallel; the reactor and the capacitor form a filter circuit, and a thick plate welding tap is arranged in the middle of the reactor and connected with the power output end of the welding machine; the power output end of the welding machine is divided into two output modes of a thin plate and a thick plate; the fan is connected with the input power supply through a fan switch.