CN101298109B - Striking device suitable for welding and cutting equipment - Google Patents
Striking device suitable for welding and cutting equipment Download PDFInfo
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- CN101298109B CN101298109B CN2008100273624A CN200810027362A CN101298109B CN 101298109 B CN101298109 B CN 101298109B CN 2008100273624 A CN2008100273624 A CN 2008100273624A CN 200810027362 A CN200810027362 A CN 200810027362A CN 101298109 B CN101298109 B CN 101298109B
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- isolating transformer
- initiation device
- welding
- discharge tube
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Abstract
The invention discloses an arc striking device which is applicable for welding and cutting apparatus, comprising a filter circuit, a voltage doubling rectifing circuit, a discharge tube, a coupling isolation transformer and an ignition arc striking device. The arc striking device can eliminate or reduce the disadvantageous effects caused by various factors, realize the high-frequency arc striking of welding and cutting, and has the advantages of simple and compact structure, convenient control, strong interference resistance, high arc striking efficiency and good stability effect.
Description
Technical field
The present invention relates to a kind of arc initiation device, especially a kind of igniting arc initiation device that is applicable to TIG weldering, cutting equipment.
Background technology
In equipment such as TIG weldering and cutting, make the arc initiation device of igniting, use differently according to the side circuit of the size of the power of equipment, producing about voltage 3KV～15KV, electric current 30mA～80mA, frequency 300KHz～1MHz between workpiece and the electrode.Its common characteristic is, requires frequency height, voltage height, electric current little etc.
On equipment such as TIG weldering and cutting, high-frequency arc strike is the main method of non-contacting ignition arc, and the height of striking quality is the key factor of decision welding and cutting.Early stage traditional arc ignition circuit is by the Industrial Frequency Transformer transformation, produces the high pressure of isolating with main circuit, and disruptive spark discharger, the volume and weight of Industrial Frequency Transformer are all very big, and arc ignition circuit is also wayward; Adopting the arc ignition circuit of HF switch technology is existing major programme, can reduce weight and volume like this, but can make circuitry complicated, and returning of high frequency scurried the electronic component of understanding in interference and the damage equipment electronic circuit, especially the control circuit of impulse circuit has influenced equipment job stability and life-span.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, and a kind of welding and arc initiation device of cutting equipment of being applicable to be provided, the adverse effect that the each side factor is brought can be eliminated or reduce to this arc device, realize the high-frequency arc strike of welding and cutting, have simple and compact for structurely, control is convenient, and is anti-interference strong, striking efficient height, and the good advantage of stablizing effect.
The object of the present invention is achieved like this:
Be applicable to the arc initiation device of welding and cutting equipment, comprise filter circuit, voltage doubling rectifing circuit, discharge tube, coupling isolating transformer and igniting arc initiation device are formed, filter circuit is made up of discharge resistance R2 and capacitor C 1, voltage doubling rectifing circuit is by discharge resistance R1, R3, capacitor C 2, C3 and diode D1, D2 constitutes, described discharge resistance R2 two ends also are connected to power input and capacitor C 1, the two ends of capacitor C 1 respectively with the capacitor C 2 of voltage doubling rectifing circuit, the end of C3 links to each other, diode D1 negative pole links to each other with capacitor C 2 other ends with the common port that the D2 positive pole is connected to form, the other end of capacitor C 3 is connected with diode D2 negative pole, described capacitor C 3 two ends also and be connected to discharge resistance R3, the anodal two-way that divides of diode D1 is exported, one the tunnel links to each other with the discharge tube input, another road is connected the secondary end of coupling isolating transformer, described discharge tube output and diode D2 negative pole are connected the elementary two ends of the isolating transformer that is coupled respectively, and the secondary two ends of coupling isolating transformer are connected with the igniting arc initiation device.
Above-mentioned arc initiation device, the civil power input is through filtering capacitor C 1; Output to voltage doubling rectifing circuit after the filtering, utilize rectification and the guiding function of D1, D2,, they are connected in series output dc voltage according to polarity addition principle capacitor C 2, C3 alternately charging respectively; DC voltage one utmost point of output is connected on ceramic gas discharge tube one end, and another utmost point is connected on the secondary end of coupling isolating transformer, forms a cutoff circuit by the discharge tube other end and the elementary other end serial connection of coupling isolating transformer again.When the DC voltage of output reaches the ceramic gas discharge tube breakdown voltage; discharge tube does not stop disruptive discharge; form the DC voltage effect that a high-frequency switch plays inversion output; can be coupled out a high voltage in that isolating transformer is secondary, thereby successfully realize igniting striking effect between two metal electrodes of igniting arc initiation device.
Purpose of the present invention can also adopt following technical measures to solve:
Described discharge tube is a ceramic gas discharge tube, utilizes the switching characteristic of ceramic gas discharge tube itself, replaces traditional inverter circuit, and the device interior control circuit is oversimplified, and strengthens whole antijamming capability and stability.
Described coupling isolating transformer is a HT paper tinsel formula coupling isolating transformer, utilizes HT paper tinsel formula coupling isolating transformer to replace traditional wire-wound coupling isolating transformer, reduces volume widely and reduces cost, and increased antijamming capability.
Also include the female terminal of power supply input, discharge resistance R2 two ends are attempted by on the output of female terminal.
Described female terminal, filter circuit, voltage doubling rectifing circuit, discharge tube, coupling isolating transformer and igniting arc initiation device all are arranged on the PCB circuit board.Product design is become modular electronic circuit board, and the client is selecting application facet that great convenience is arranged, and standardized component is extensively adopted in the standardization of being more convenient for, and helps promoting the use of of product.
The invention has the beneficial effects as follows:
(1), arc initiation device of the present invention, be applicable to welding and cutting equipment, the adverse effect that the each side factor is brought can be eliminated or reduce to this arc initiation device, realize the high-frequency arc strike of welding and cutting, have simple and compact for structurely, control is convenient, and is anti-interference strong, striking efficient height, and the good advantage of stablizing effect; Moreover, utilize HT paper tinsel formula coupling isolating transformer to replace traditional wire-wound coupling isolating transformer, reduce volume widely and reduced cost, and increased antijamming capability; Further, utilize the switching characteristic of ceramic gas discharge tube itself to replace traditional inverter circuit, the device interior control circuit is oversimplified, strengthen whole antijamming capability and stability, whole device installation process is simple and convenient, reasonable integral structure.
(2), because the arc initiation device of welding of the present invention and cutting equipment, female terminal, filter circuit, voltage doubling rectifing circuit, discharge tube, coupling isolating transformer and igniting arc initiation device all are arranged on the PCB circuit board, product design becomes modular electronic circuit board, the client is selecting application facet that great convenience is arranged, be more convenient for standardizing, extensively adopt standardized component, help promoting the use of of product.
Description of drawings
Fig. 1 is an arc initiation device functional-block diagram of the present invention;
Fig. 2 is an arc initiation device electrical schematic diagram of the present invention.
The specific embodiment
As depicted in figs. 1 and 2, a kind of arc initiation device that is applicable to welding and cutting equipment, the female terminal 1 that comprises the power supply input, filter circuit 2, voltage doubling rectifing circuit 3, discharge tube 4, coupling isolating transformer 5 and igniting arc initiation device 6 are formed, described discharge tube 4 is ceramic gas discharge tubes, coupling isolating transformer 5 is HT paper tinsel formula coupling isolating transformers, filter circuit 2 is made up of discharge resistance R2 and capacitor C 1, voltage doubling rectifing circuit 3 is by discharge resistance R1, R3, capacitor C 2, C3 and diode D1, D2 constitutes, described discharge resistance R2 two ends also are connected to the output and the capacitor C 1 of female terminal 1, the two ends of capacitor C 1 respectively with the capacitor C 2 of voltage doubling rectifing circuit 3, the end of C3 links to each other, diode D1 negative pole links to each other with capacitor C 2 other ends with the common port that the D2 positive pole is connected to form, the other end of capacitor C 3 is connected with diode D2 negative pole, described capacitor C 3 two ends also and be connected to discharge resistance R3, the anodal two-way that divides of diode D1 is exported, one the tunnel links to each other with discharge tube 4 inputs, another road is connected 5 level one ends of coupling isolating transformer, described discharge tube 4 outputs and diode D2 negative pole are connected the elementary two ends of the isolating transformer 5 that is coupled respectively, and the secondary two ends of coupling isolating transformer 5 are connected with igniting arc initiation device 6.Above-mentioned female terminal 1, filter circuit 2, voltage doubling rectifing circuit 3, discharge tube 4, coupling isolating transformer 5 and igniting arc initiation device 6 all are arranged on the PCB circuit board.
Operation principle: civil power is by female terminal 1 input of power supply input, after 1 filtering of filtering capacitor C, output to voltage doubling rectifing circuit 3, form by capacitor C 2, C3 and diode D1, D2, utilize rectification and the guiding function of D1, D2, to capacitor C 2, C3 alternately charging respectively, they are connected in series output dc voltage according to polarity addition principle; DC voltage one utmost point of output is connected on ceramic gas discharge tube 4 one ends, another utmost point is connected on 5 level one ends of HT paper tinsel formula coupling isolating transformer, forms a cutoff circuit by ceramic gas discharge tube 4 other ends and HT paper tinsel formula coupling isolating transformer 5 elementary other end serial connections again; When the DC voltage of output reached ceramic gas discharge tube 4 breakdown voltages, discharge tube 4 did not stop disruptive discharge, formed the DC voltage effect that a high-frequency switch plays inversion output, can be coupled out a high voltage in 5 levels of HT paper tinsel formula coupling isolating transformer; Thereby successfully realized igniting striking effect between two metal electrodes of igniting arc initiation device 6.
Claims (5)
1. be applicable to the arc initiation device of welding and cutting equipment, it is characterized in that, comprise filter circuit (2), voltage doubling rectifing circuit (3), discharge tube (4), coupling isolating transformer (5) and igniting arc initiation device (6) are formed, filter circuit (2) is made up of discharge resistance R2 and capacitor C 1, voltage doubling rectifing circuit (3) is by discharge resistance R1, R3, capacitor C 2, C3 and diode D1, D2 constitutes, described discharge resistance R2 two ends also are connected to power input and capacitor C 1, the two ends of capacitor C 1 respectively with the capacitor C 2 of voltage doubling rectifing circuit (3), the end of C3 links to each other, diode D1 negative pole links to each other with capacitor C 2 other ends with the common port that the D2 positive pole is connected to form, the other end of capacitor C 3 is connected with diode D2 negative pole, described capacitor C 3 two ends also and be connected to discharge resistance R3, the anodal two-way that divides of diode D1 is exported, one the tunnel links to each other with discharge tube (4) input, another road is connected the secondary end of coupling isolating transformer (5), described discharge tube (4) output and diode D2 negative pole are connected the elementary two ends of coupling isolating transformer (5) respectively, and the secondary two ends of coupling isolating transformer (5) are connected with igniting arc initiation device (6).
2. the arc initiation device that is applicable to welding and cutting equipment according to claim 1 is characterized in that described discharge tube (4) is a ceramic gas discharge tube.
3. the arc initiation device that is applicable to welding and cutting equipment according to claim 1 is characterized in that, described coupling isolating transformer (5) is a HT paper tinsel formula coupling isolating transformer.
4. the arc initiation device that is applicable to welding and cutting equipment according to claim 1 is characterized in that, also includes the female terminal (1) of power supply input, and discharge resistance R2 two ends are attempted by on the output of female terminal (1).
5. the arc initiation device that is applicable to welding and cutting equipment according to claim 4, it is characterized in that described female terminal (1), filter circuit (2), voltage doubling rectifing circuit (3), discharge tube (4), coupling isolating transformer (5) and igniting arc initiation device (6) all are arranged on the PCB circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100273624A CN101298109B (en) | 2008-04-11 | 2008-04-11 | Striking device suitable for welding and cutting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100273624A CN101298109B (en) | 2008-04-11 | 2008-04-11 | Striking device suitable for welding and cutting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101298109A CN101298109A (en) | 2008-11-05 |
| CN101298109B true CN101298109B (en) | 2010-07-28 |
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ID=40078138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100273624A Expired - Fee Related CN101298109B (en) | 2008-04-11 | 2008-04-11 | Striking device suitable for welding and cutting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101298109B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570860A (en) * | 2010-12-31 | 2012-07-11 | 海洋王照明科技股份有限公司 | DC (direct current) high-voltage output circuit and high-voltage testing device |
| CN109822236B (en) * | 2019-04-04 | 2023-11-28 | 中国工程物理研究院机械制造工艺研究所 | Device for cutting and welding pipeline |
| CN111992847B (en) * | 2020-08-27 | 2024-05-31 | 上海沪工焊接集团股份有限公司 | Control method and device for wide-voltage multifunctional arc welder and storage medium thereof |
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2008
- 2008-04-11 CN CN2008100273624A patent/CN101298109B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101298109A (en) | 2008-11-05 |
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Granted publication date: 20100728 Termination date: 20160411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |