CN203171122U - Digitized consumable electrode gas shielded welding machine controlled by MCU - Google Patents
Digitized consumable electrode gas shielded welding machine controlled by MCU Download PDFInfo
- Publication number
- CN203171122U CN203171122U CN 201320050687 CN201320050687U CN203171122U CN 203171122 U CN203171122 U CN 203171122U CN 201320050687 CN201320050687 CN 201320050687 CN 201320050687 U CN201320050687 U CN 201320050687U CN 203171122 U CN203171122 U CN 203171122U
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- processing unit
- welding machine
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Abstract
The utility model relates to a consumable electrode gas shielded welding machine, in particular to a digitized consumable electrode gas shielded welding machine controlled by a MCU. The digitized consumable electrode gas shielded welding machine controlled by the MCU comprises a rectifying filter, a bridge-type inverter and a secondary rectifier in sequence, wherein a control loop is further arranged between the output end of the secondary rectifier and the bridge-type inverter, a current and voltage reference control knob and an A/D sampling unit are arranged in the control loop, the current and voltage reference control knob and the A/D sampling unit are used for sampling currents and voltages and inputting samples to an MCU processing unit, the MCU processing unit is connected to a pulse width modulation circuit, a driving circuit and an inverter circuit in sequence, and the MCU processing unit is further connected with a mode selecting control knob, a display unit and a wire feeding module. According to the digitized consumable electrode gas shielded welding machine controlled by the MCU, an LED Nixie tube is arranged to display a preset current and a preset voltage, and therefore the interface is more visual; MCU digitized control is achieved for mode selection, the VRD electric shock resisting function, draught fan control and an electrical reactance module, and control accuracy is high.
Description
Technical field
The utility model relates to a kind of consumable electrode gas-arc arc-welding machine, relates in particular to a kind of MCU control figure gas metal-arc welder.
Background technology
At present, the gas metal-arc welder on the market mainly is the electric welding machine of realizing by analog circuit.The Analog Circuit Design complexity, efficient is low, and versatility is poor, is difficult to carry out secondary transformation and upgrade exploitation; The analog circuit exploitation, debugging cycle is long; The analog circuit control accuracy is low, poor reliability.In the face of requiring increasing technological requirement, the deficiency of simulation welding machine is more and more obvious, very by necessity design MCU Digital Control gas metal-arc welder.
Summary of the invention
Exist the analog circuit control accuracy low at existing gas metal-arc welder, poor reliability; The defective that general no current, voltage show, the utility model provides a kind of control accuracy height, and charactron shows predetermined current, voltage, the MCU control figure gas metal-arc welder of handled easily.
For achieving the above object, the utility model adopts following technical scheme:
A kind of MCU control figure gas metal-arc welder; comprise current rectifying and wave filtering circuit successively; bridge inverter main circuit; secondary rectification circuit; also has the control loop circuit between the output of secondary rectification circuit and the bridge inverter main circuit; the given control handle of wire feed rate/electric current is set in the described control loop circuit; the voltage given control handle; the A/D sampling unit is to the electric current in the control loop circuit; voltage is sampled; and be input to the MCU processing unit; the MCU processing unit also connects pulse-width modulation circuit successively; drive circuit; the output of drive circuit is connected to bridge inverter main circuit; MCU processing unit also connection mode is selected control handle and display unit, wire feed module.The model selection control handle is selected pattern, comprises three kinds of patterns: gas metal-arc welding lifts argon arc welding, manual welding.Select corresponding pattern can corresponding voltage, electric current is given.The A/D sampling unit converts curtage to digital quantity from analog quantity, and shows in real time by MCU processing unit, display unit.And accurately control electric welding electric current, voltage by pulse-width modulation circuit, drive circuit.
As preferably, described display unit is provided with the digital display tube of LED.Clear display, directly perceived.
As preferably, described MCU processing unit connects VRD electrocution-proof protection module.The electrocution-proof protection function is also controlled by MCU.
As preferably, described MCU processing unit connects the blower fan control module.During electric welding machine work, the cooling blower rotation; When standby or radiator were lower than threshold temperature, blower fan did not change.Can save electricity consumption, reduce welding machine dust soakage.
As preferably, described MCU processing unit connects the electronics reactance module.The limiting short-circuit current rate of climb and peak value of short splash in order to regulate striking performance and the minimizing of welding machine.
A kind of MCU control figure gas metal-arc welder of the present utility model has the LED charactron and shows predetermined current, voltage, and the interface is more directly perceived; And model selection, VRD electroshock-proof function, blower fan control and electronics reactance module have all realized the MCU Digital Control, have the high advantage of control accuracy.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with Fig. 1 and the specific embodiment the utility model is described further.
As shown in Figure 1; a kind of MCU control figure gas metal-arc welder; comprise current rectifying and wave filtering circuit 1 successively; bridge inverter main circuit 2; secondary rectification circuit 3; also has control loop circuit 4 between the output of secondary rectification circuit 3 and the bridge inverter main circuit 2; the given control handle 45 of wire feed rate/electric current is set in the described control loop circuit 4; voltage given control handle 42; electric current in 43 pairs of control loop circuit 4 of A/D sampling unit; voltage is sampled; and be input to MCU processing unit 41; MCU processing unit 41 also connects pulse-width modulation circuit 5 successively; drive circuit 6; the output of drive circuit 6 is connected to bridge inverter main circuit 2; MCU processing unit 41 is gone back connection mode and is selected control handle 46 and display unit 44, wire feed module 7.Described display unit 44 is provided with the digital display tube of LED.Described MCU processing unit 41 connects VRD electrocution-proof protection module 47, blower fan control module 48, electronics reactance module 49.
Being preferred embodiment of the present utility model only in sum, is not to limit practical range of the present utility model, and all equivalences of doing according to the content of the application's claim change and modify, and all should be technology category of the present utility model.
Claims (5)
1. MCU control figure gas metal-arc welder; comprise current rectifying and wave filtering circuit (1) successively; bridge inverter main circuit (2); secondary rectification circuit (3); also has control loop circuit (4) between the output of secondary rectification circuit (3) and the bridge inverter main circuit (2); it is characterized in that: the given control handle of wire feed rate/electric current (45) is set in the described control loop circuit (4); voltage given control handle (42); A/D sampling unit (43) is to the electric current in the control loop circuit (4); voltage is sampled; and be input to MCU processing unit (41); MCU processing unit (41) also connects pulse-width modulation circuit (5) successively; drive circuit (6); the output of drive circuit (6) is connected to bridge inverter main circuit (2); MCU processing unit (41) is gone back connection mode and is selected control handle (46) and display unit (44), wire feed module (7).
2. a kind of MCU control figure gas metal-arc welder according to claim 1 is characterized in that: described display unit (44) is provided with the digital display tube of LED.
3. a kind of MCU control figure gas metal-arc welder according to claim 1 is characterized in that: described MCU processing unit (41) connection VRD electrocution-proof protection module (47).
4. a kind of MCU control figure gas metal-arc welder according to claim 1 is characterized in that: described MCU processing unit (41) connection blower fan control module (48).
5. a kind of MCU control figure gas metal-arc welder according to claim 1 is characterized in that: described MCU processing unit (41) connection electronics reactance module (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050687 CN203171122U (en) | 2013-01-28 | 2013-01-28 | Digitized consumable electrode gas shielded welding machine controlled by MCU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050687 CN203171122U (en) | 2013-01-28 | 2013-01-28 | Digitized consumable electrode gas shielded welding machine controlled by MCU |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171122U true CN203171122U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320050687 Expired - Fee Related CN203171122U (en) | 2013-01-28 | 2013-01-28 | Digitized consumable electrode gas shielded welding machine controlled by MCU |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977103A (en) * | 2019-12-27 | 2020-04-10 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
| US20220118542A1 (en) * | 2019-04-30 | 2022-04-21 | South China University Of Technology | A Dual-Pulse MIG Welding Power Source Based on SiC Power Devices |
-
2013
- 2013-01-28 CN CN 201320050687 patent/CN203171122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220118542A1 (en) * | 2019-04-30 | 2022-04-21 | South China University Of Technology | A Dual-Pulse MIG Welding Power Source Based on SiC Power Devices |
| CN110977103A (en) * | 2019-12-27 | 2020-04-10 | 逢来焊接技术(上海)有限公司 | Novel digital pulse gas shielded welding control circuit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20180128 |