CN201685022U - Inverter multi-purpose arc welding machine plasma cutting insulating device - Google Patents
Inverter multi-purpose arc welding machine plasma cutting insulating device Download PDFInfo
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- CN201685022U CN201685022U CN2009202129492U CN200920212949U CN201685022U CN 201685022 U CN201685022 U CN 201685022U CN 2009202129492 U CN2009202129492 U CN 2009202129492U CN 200920212949 U CN200920212949 U CN 200920212949U CN 201685022 U CN201685022 U CN 201685022U
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Abstract
The utility model relates to an inverter multi-purpose arc welding machine plasma cutting insulating device, which comprises a primary inverter circuit, a conversion output circuit, a secondary inverter circuit, a primary high-frequency coupling device and a secondary high-frequency coupling device. The conversion output circuit comprises eight groups of transfer switches, one end of each of the transfer switches is respectively connected with four groups of output of the primary inverter circuit, and the other end of each of the transfer switches is connected with the secondary inverter circuit, wherein a contact G3 of the transfer switch G is connected with output X of the secondary inverter circuit, and a contact H3 of the transfer switch H is connected with input ends of the primary high-frequency coupling device and the second high-frequency coupling device. The cutting insulating device mainly solves the technical problems that existing circuits under plasma state cause attenuation of a high-frequency portion and can not reach required voltage of plasma arcs due to the fact that secondary inversion is in the whole output loop so as to cause difficulty of cutting of the plasma arcs, and the cutting process is difficult to stabilize, the device can avoid attenuation of high-frequency voltage due to secondary inversion, realizes transfer of a plasma cutting circuit mode, and meets output required by plasma cutting.
Description
Technical field
The utility model relates to the circuit that arc-welding machine is used in inversion more, and how particularly a kind of inversion cuts spacer assembly with the arc-welding machine plasma.
Background technology
Conventional inversion multifunction electric welding machine ground circuit comprises current rectifying and wave filtering circuit, inverter circuit, output switching circuit, secondary inverter circuit etc.It has functions such as manual welding function, dc argon arc welding function, DC pulse argon arc welding function, ac argon arc weld function, alternating-current pulse argon arc welding function, air plasma cutting.The desired operating voltage of various functions is all variant, and under the arc-welding state, output voltage can satisfy welding requirements usually.Under the plasma cut state, because the secondary inversion is also in whole output loop, and then causes HFS decay to occur, do not reach the desired voltage of the plasma starting the arc, cause plasma cutting starting the arc difficulty, cutting process is difficult to stable carrying out.
The utility model content
The purpose of this utility model is to provide a kind of inversion how to cut spacer assembly with the arc-welding machine plasma, mainly solve available circuit under the plasma cut state, because the secondary inversion is also in whole output loop, and then cause HFS decay to occur, do not reach the desired voltage of the plasma starting the arc, cause plasma cutting starting the arc difficulty, cutting process is difficult to stable technical problem of carrying out; It can be avoided realizing the transformation of plasma clipper circuit pattern because the secondary inversion causes the high frequency voltage decay, thereby satisfy the output of plasma split requirement.
For achieving the above object, the utility model is achieved in that
A kind of inversion is how with arc-welding machine plasma cutting spacer assembly, and it comprises inverter circuit, switches output circuit, secondary inverter circuit, the first high-frequency coupling device, the second high-frequency coupling device; It is characterized in that: described output switching circuit has A, B, C, D, E, F, eight groups of change-over switches of G, H, and described change-over switch one end connects four groups of outputs of an inverter circuit respectively, and the other end connects secondary inverter circuit; Wherein: the contact G3 of change-over switch G and the output X of secondary inverter circuit are connected together, and the contact H3 of change-over switch H connects the input of first, second high-frequency coupling device.
By said structure, advantage of the present utility model is:
1, the utility model is when plasma cuts, and the high-frequency output voltage when having improved the plasma cutting is more prone to the plasma striking, cuts more stable.
2, the plasma high-frequency and high-voltage of the utility model output so secondary inverter circuit need not to adopt the electronic devices and components and relevant protection device of anti-high-frequency and high-voltage, thereby is saved cost without secondary inverter circuit; In addition, because secondary inverter circuit is not operated in the plasma cutting loop,, improved the effective power when plasma cuts so loss can not produced in output loop.Also strengthened simultaneously the reliability of welding machine complete machine.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model.
The specific embodiment
See also Fig. 1, it discloses a kind of inversion and has used the arc-welding machine circuit more.As shown in the figure: it comprises current rectifying and wave filtering circuit 1, inverter circuit 2, reduction voltage circuit 3, auxiliary power circuit 4, control circuit 5, function commutation circuit 6, output rectifier and filter 7, output switching circuit 8, secondary inverter circuit 9, secondary drive circuit 10, high-frequency circuit 11, the first high-frequency coupling device 12, the second high-frequency coupling device.
Described output switching circuit 8 has A, B, C, D, E, F, eight groups of change-over switches of G, H, and described change-over switch one end connects four groups of outputs a, b, c, the d of an inverter circuit respectively, and the other end connects secondary inverter circuit 9; Wherein: the contact G3 of change-over switch G and the output X of secondary inverter circuit 9 are connected together, and the contact H3 of change-over switch H connects the input of first, second high-frequency coupling device.
The utility model is to be on the 6 groups of change-over switches and basis of relay at A, B, C, D, E, F on original circuit, has increased by two groups of change-over switches of G, H.Contact G1 and contact G2 in original circuit, contact H1 and contact H2 are no matter when using any function, link together.Two groups of change-over switch G and H by installing relay again additional switch G and H and original six groups of switches of A, B, C, D, E, F simultaneously.When using hand arc argon arc welding function, the contact A 1 of relay and contact A 2, contact B1 and contact B2, contact C1 and contact C2, contact D1 and contact D2, contact E1 and contact E2, contact F1 and contact F2, contact G1 and contact G2, contact H1 and contact H2 connect respectively, make a, b, c, d group output-parallel together, through the secondary inversion, again by the high-frequency coupling device, by X and Y output, thereby reach the job requirement of hand arc argon arc welding.When using the plasma cutting function, the contact A 1 of relay and contact A 3, contact B1 and contact B3, contact C1 and contact C3, contact D1 and contact D3, contact E1 and contact E3, contact F1 and contact F3 connect respectively, a, b, the output of c, d group are cascaded, contact G1 and contact G3, contact H1 and contact H3 also connect respectively, and disconnect with secondary inverter circuit.The output X of contact G3 and secondary inverter circuit is connected together, and contact H3 is by another group high-frequency coupling device, by X and Z output.So effectively avoid because the secondary inversion causes the high frequency voltage decay, thus when satisfying the plasma cutting to the requirement of supply voltage.
Claims (1)
1. an inversion is how with arc-welding machine plasma cutting spacer assembly, and it comprises inverter circuit, switches output circuit, secondary inverter circuit, the first high-frequency coupling device, the second high-frequency coupling device; It is characterized in that: described output switching circuit has A, B, C, D, E, F, eight groups of change-over switches of G, H, and described change-over switch one end connects four groups of outputs of an inverter circuit respectively, and the other end connects secondary inverter circuit; Wherein: the contact G3 of change-over switch G and the output X of secondary inverter circuit are connected together, and the contact H3 of change-over switch H connects the input of first, second high-frequency coupling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202129492U CN201685022U (en) | 2009-12-11 | 2009-12-11 | Inverter multi-purpose arc welding machine plasma cutting insulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202129492U CN201685022U (en) | 2009-12-11 | 2009-12-11 | Inverter multi-purpose arc welding machine plasma cutting insulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201685022U true CN201685022U (en) | 2010-12-29 |
Family
ID=43373311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202129492U Expired - Fee Related CN201685022U (en) | 2009-12-11 | 2009-12-11 | Inverter multi-purpose arc welding machine plasma cutting insulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201685022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439664A (en) * | 2014-12-19 | 2015-03-25 | 嘉兴力德数控科技有限公司 | Struck arc and cutting arc transfer circuit for plasma cutting machine |
| CN106238938A (en) * | 2016-10-08 | 2016-12-21 | 宁夏吴忠市好运电焊机有限公司 | A kind of inverter type welding/cutting power supply of belt electrode short-circuit protection |
-
2009
- 2009-12-11 CN CN2009202129492U patent/CN201685022U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439664A (en) * | 2014-12-19 | 2015-03-25 | 嘉兴力德数控科技有限公司 | Struck arc and cutting arc transfer circuit for plasma cutting machine |
| CN104439664B (en) * | 2014-12-19 | 2016-08-24 | 嘉兴力德数控科技有限公司 | Arc carry circuit is cut in CUT striking |
| CN106238938A (en) * | 2016-10-08 | 2016-12-21 | 宁夏吴忠市好运电焊机有限公司 | A kind of inverter type welding/cutting power supply of belt electrode short-circuit protection |
| CN106238938B (en) * | 2016-10-08 | 2018-07-24 | 宁夏吴忠市好运电焊机有限公司 | A kind of inverter type welding/cutting power supply of belt electrode short-circuit protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20141211 |
|
| EXPY | Termination of patent right or utility model |