CN207267098U - A kind of intermediate frequency control system of output strip line welding machine - Google Patents
A kind of intermediate frequency control system of output strip line welding machine Download PDFInfo
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- CN207267098U CN207267098U CN201721172544.1U CN201721172544U CN207267098U CN 207267098 U CN207267098 U CN 207267098U CN 201721172544 U CN201721172544 U CN 201721172544U CN 207267098 U CN207267098 U CN 207267098U
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- welding machine
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- machine controller
- welding
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Abstract
The utility model belongs to steel manufacturing field, there is provided a kind of intermediate frequency control system of output strip line welding machine, including IGBT inverters, intermediate-frequency transformer, rectifier diode, programmable device, welding machine controller, current inductor；The output terminal of the IGBT inverters is connected with intermediate-frequency transformer, it is connected after the rectified diode of output terminal of intermediate-frequency transformer with current inductor, the output terminal of current inductor is connected with welding machine controller, the output terminal of programmable device is connected with welding machine controller, the output terminal of welding machine controller is connected with IGBT inverters, welding machine controller compares the difference between the actual value that the current setting value of programmable device and current inductor measure, and dynamic adjusts IGBT inverters.The source of welding current of the utility model output has a high current density, and welding parameter moves/and static state is adjustable, greatly improve the reliability and precision of the welding procedure of strip tinuous production resistance welder.
Description
Technical field
The utility model belongs to steel manufacturing field, the intermediate frequency control system of specifically a kind of output strip line welding machine
System.
Background technology
Since resistance welder is a kind of high efficiency, low operating cost（Without welding rod and protective gas）Welding means,
It is widely used on the tinuous production of strip.As some special welding materials occur, such as the weldering of galvanized steel plain sheet
Connect, the welding of aluminium alloy, the welding of high strength steel, welding of copper and steel etc..In strip continuous production welding process, it is badly in need of one
The kind source of welding current, can have high current density, the functions such as welding parameter dynamic and static high accuracy are adjustable.
The content of the invention
The purpose of the utility model is to overcome deficiency of the prior art, there is provided a kind of intermediate frequency of output strip line welding machine
Control system, its source of welding current exported have a high current density, and welding parameter moves/and static state is adjustable, it is continuous to greatly improve strip
The reliability and precision of the welding procedure of production line resistance welder.
In order to achieve the above object, the technical solution adopted in the utility model is：A kind of intermediate frequency control of output strip line welding machine
System processed, including IGBT inverters, intermediate-frequency transformer, rectifier diode, programmable device, welding machine controller, current inductor；It is described
The output terminal of IGBT inverters is connected with intermediate-frequency transformer, senses after the rectified diode of output terminal of intermediate-frequency transformer with electric current
Device is connected, and the output terminal of current inductor is connected with welding machine controller, and the output terminal of programmable device is connected with welding machine controller, welding machine
The output terminal of controller is connected with IGBT inverters, and welding machine controller compares the current setting value of programmable device and current inductor is surveyed
Difference between the actual value obtained, dynamic adjust IGBT inverters.
In the above-mentioned technical solutions, the welding machine controller is the controller based on PID control.
The intermediate frequency control system of the utility model output strip line welding machine, have control accuracy is high, output current density is big,
Energy is high, splashes in welding process the advantages that few, can be widely used for various strip tinuous productions.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Wherein：1st, IGBT inverters, 2, intermediate-frequency transformer, 3, rectifier diode, 4, programmable device, 5, welding machine controller, 6,
Current inductor.
Embodiment
The utility model is described in further details below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the present embodiment provides a kind of intermediate frequency control system of output strip line welding machine, including IGBT inverters
1st, intermediate-frequency transformer 2, rectifier diode 3, programmable device 4, welding machine controller 5, current inductor 6；The IGBT inverters 1 it is defeated
Outlet is connected with intermediate-frequency transformer 2, is connected after the rectified diode 3 of output terminal of intermediate-frequency transformer 2 with current inductor 6, electricity
The output terminal of stream inductor 6 is connected with welding machine controller 5, and the output terminal of programmable device 4 is connected with welding machine controller 5, welding machine control
The output terminal of device 5 is connected with IGBT inverters 1, and welding machine controller 1 compares the current setting value and current inductor 6 of programmable device 4
Difference between the actual value measured, dynamic adjust IGBT inverters 1.
In the above-described embodiments, the welding machine controller 5 is the controller based on PID control.
Then the present embodiment is reverse into square wave frequency in use, three-phase alternating current is rectified into direct current first with IGBT inverters 1
Rate is the exchange of 1000Hz, and intermediate-frequency transformer 2 is depressured the square wave of 1000Hz, then is rectified into direct current by rectifier diode 3
Output（Rectifier diode 3 is located inside intermediate-frequency transformer 2）, the DC current of the output is welding current, current inductor 6
The welding current of detection output in real time, and current values are sent to welding machine controller 5, welding machine controller 5 compares the electricity of 4 devices of programming
Difference between the actual value that stream setting value and current inductor 6 measure, dynamic adjust IGBT inverters 1, are closed so as to form PID
Ring controls.
Compared with general mains frequency resistance welding machine, the resistance welder of intermediate frequency control system is used（Hereinafter referred to as intermediate-frequency welding machine）
Have the following advantages：1. for power grid, intermediate-frequency welding machine is the inductive load of a three-phase equilibrium；2.1000Hz intermediate-frequency transformer
Using high conducting magnet core, volume, weight is the 20% of Industrial Frequency Transformer；3. the waveform of intermediate-frequency welding machine is almost continuous, and power frequency
The waveform of welding machine is evident as discontinuously, so the current density of intermediate-frequency welding machine output is big, energy is high；4. the frequency of intermediate-frequency welding machine is
1000Hz, time control precision is 1ms, and power frequency welding machine is 20ms；5. after secondary commutation, eliminating induction reactance, dynamic adjusts
Speed it is fast；6. since the electric current of intermediate-frequency welding machine does not have peak value, and heating no longer interval, subtract so splashing in welding process
Few, electrode wheel pressure reduces, and temperature declines, and abrasion also declines.
The content not being described in detail in this specification, belongs to the prior art known to those skilled in the art.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modification, equivalent replacement, improvement and so on, should be included in the guarantor of the utility model
Within the scope of shield.
Claims (2)
- A kind of 1. intermediate frequency control system of output strip line welding machine, it is characterised in that：Including IGBT inverters, intermediate-frequency transformer, Rectifier diode, programmable device, welding machine controller, current inductor；The output terminal of the IGBT inverters and intermediate-frequency transformer phase Even, it is connected after the rectified diode of output terminal of intermediate-frequency transformer with current inductor, the output terminal and welding machine of current inductor Controller is connected, and the output terminal of programmable device is connected with welding machine controller, and the output terminal of welding machine controller is connected with IGBT inverters, Welding machine controller compares the difference between the actual value that the current setting value of programmable device and current inductor measure, and dynamic adjusts IGBT inverters.
- 2. the intermediate frequency control system of output strip line welding machine according to claim 1, it is characterised in that：The welding machine control Device is the controller based on PID control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172544.1U CN207267098U (en) | 2017-09-13 | 2017-09-13 | A kind of intermediate frequency control system of output strip line welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172544.1U CN207267098U (en) | 2017-09-13 | 2017-09-13 | A kind of intermediate frequency control system of output strip line welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207267098U true CN207267098U (en) | 2018-04-24 |
Family
ID=61960633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721172544.1U Expired - Fee Related CN207267098U (en) | 2017-09-13 | 2017-09-13 | A kind of intermediate frequency control system of output strip line welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207267098U (en) |
-
2017
- 2017-09-13 CN CN201721172544.1U patent/CN207267098U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180424 Termination date: 20210913 |