CN105234601A - Method and circuit for remote control current of output cable of electric welding machine - Google Patents
Method and circuit for remote control current of output cable of electric welding machine Download PDFInfo
- Publication number
- CN105234601A CN105234601A CN201510732486.2A CN201510732486A CN105234601A CN 105234601 A CN105234601 A CN 105234601A CN 201510732486 A CN201510732486 A CN 201510732486A CN 105234601 A CN105234601 A CN 105234601A
- Authority
- CN
- China
- Prior art keywords
- welding machine
- electric welding
- remote control
- machine output
- output cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
Abstract
The invention provides a method and circuit for the remote control current of an output cable of an electric welding machine. The method includes the steps that a test source used for detecting the impedance change of an output circuit of the electric welding machine is arranged; and a setting device is arranged, and when the value of the setting device is adjusted to the resistance value corresponding to the target current and the two ends of the setting device are connected to two output ends of the electric welding machine respectively, the output current of the electric welding machine is set through the test source according to the detected impedance change value. The circuit comprises the test source used for acquiring the impedance change value of the output circuit of the electric welding machine, a controller used for adjusting the output current of the electric welding machine according to the impedance change value, and the setting device used for setting the corresponding resistance value according to the target current and being connected to the two output ends of the electric welding machine. By the adoption of the method and circuit, the problem that the current is inconvenient to adjust when an operator is far away from the electric welding machine is solved, the work intensity of the operator is relieved, and work efficiency is improved.
Description
Technical field
The present invention relates to the electric welding machine of control function far away, especially relate to a kind of method and circuit of electric welding machine output cable remote control electric current.
Background technology
In the use procedure of traditional-handwork welding machine, often need to regulate electric current by current knob.If use manual welding machine on level land; adjustment electric current can not become very difficult problem concerning workman, but in some severe construction bad borders, particularly during overhead welding operation; often can run into the situation of operating personnel away from electric welding machine, now operating personnel to change welding current very inconvenient.For solving this difficult problem in use procedure, the present invention proposes a kind of method and circuit of Long-distance Control electric welding machine output current.
Summary of the invention
The object of the invention is to: for prior art Problems existing, provide a kind of method and circuit of electric welding machine output cable remote control electric current, solving existing manual welding machine can not the problem of long-range adjustment output current.
Goal of the invention of the present invention is achieved through the following technical solutions:
A method for electric welding machine output cable remote control electric current, it is characterized in that, the method comprises: arrange one for detecting the test source of electric welding machine output loop impedance variations; Arrange a setting apparatus, when setting apparatus being adjusted to the resistance value corresponding to target current, and when the two ends of this setting apparatus being connected respectively to two outputs of electric welding machine, test source is according to the impedance variations value setting electric welding machine output current detected.
As further technical scheme, the impedances of test source using 500 ohm to 11K ohm as Validity Test scope,
As further technical scheme, setting apparatus is greater than the fixed value resistance of 500 ohm by one and the variable resistance of a 10K ohm is in series.
As further technical scheme, the two ends of described setting apparatus connect soldering turret and ground wire respectively.
A circuit for electric welding machine output cable remote control electric current, it is characterized in that, this circuit comprises:
Test source, for gathering electric welding machine output loop impedance variations value;
Controller, for adjusting electric welding machine output current according to impedance variations value;
Setting apparatus, for arranging corresponding resistance value according to target current, and is connected to two outputs of electric welding machine.
As further technical scheme, described test source comprises sample circuit, power supply and isolating diode, the cathode output end of a sampling end connection electric welding machine of sample circuit, another sampling end connect the positive terminal of isolating diode by power supply, the negative pole end of isolating diode connects the cathode output end of electric welding machine.
As further technical scheme, described test source exports 2mA continuous current.
As further technical scheme, described setting apparatus is in series by fixed value resistance and variable resistance.
As further technical scheme, the resistance of described fixed value resistance is greater than 500 ohm, is less than 1K ohm.
As further technical scheme, the adjustable extent of described variable resistance is 0 ~ 10K ohm.
Compared with prior art, the invention solves operating personnel regulate an electric current inconvenience difficult problem away from electric welding machine, alleviate the working strength of operating personnel, improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is the connecting circuit structural representation of electric welding machine end and test source;
Fig. 2 is the electrical block diagram of setting apparatus;
Fig. 3 is the present invention connecting circuit figure in use.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
The present embodiment provides a kind of method of electric welding machine output cable remote control electric current, and the method comprises:
1, one is arranged for detecting the test source of electric welding machine output loop impedance variations.This test source can increase separately, also can make constant-current characteristics by the auxiliary detection power supply that electric welding machine internal output terminal is applied, and adds auxiliary circuit and make (this auxiliary detection power supply is that electric welding machine is indispensable, starts for detecting electric welding machine).
2, a setting apparatus is set, when setting apparatus being adjusted to the resistance value corresponding to target current, and when the two ends of this setting apparatus being connected respectively to two outputs (as soldering turret and the ground wire) of electric welding machine, test source is according to the impedance variations value setting electric welding machine output current detected.
According to electric welding machine output characteristics, during electric welding machine output current, load impedance is much smaller than 10 ohm, therefore, definition is greater than 500 ohm to 11K ohmage as Validity Test scope, calculate welding current set-point by the CPU of controller according to the impedance variations value detected, thus realize welding current Remote.
In the present embodiment, the setting apparatus that operating personnel use, the variable resistance W being greater than fixed value resistance R and 10K ohm of 500 ohm by is formed.
The design is the relevant parameter customized for electric welding machine output characteristics and electric welding machine relevant safety standard, fixed value resistance R value is greater than 500 ohm, its objective is that difference welding machine start detection requires (welding machine starts impedance ground: be less than or equal to 500 ohm), variable resistance W value 0-10K ohm, this Standard resistance range value should meet 2 basic demands: 1 when being maximum value, its terminal voltage is no more than 24V, meets electric welding machine safety requirements; 2 is that Standard resistance range is wanted to meet setting range resolution requirement.
Embodiment 2
On the basis of enforcement 1, the present embodiment provides a kind of circuit of electric welding machine output cable remote control electric current, and as shown in FIG. 1 to 3, this circuit comprises:
Test source, for gathering electric welding machine output loop impedance variations value;
Controller, for adjusting electric welding machine output current according to impedance variations value;
Setting apparatus, for arranging corresponding resistance value according to target current, and is connected to two outputs of electric welding machine.
Test source comprises sample circuit, power supply and isolating diode, the cathode output end of a sampling end connection electric welding machine of sample circuit, another sampling end connect the positive terminal of isolating diode by power supply, the negative pole end of isolating diode connects the cathode output end of electric welding machine.Test source exports 2mA continuous current.Be connected to output by isolating diode, this diode is that relay testing source is not by the use that high non-load voltage damaged that main power source exports.
Setting apparatus is in series by fixed value resistance R and variable resistance W.The resistance of fixed value resistance is greater than 500 ohm, is less than 1K ohm.The adjustable extent of variable resistance is 0 ~ 10K ohm.
When the design uses, first setting apparatus is adjusted to resistance corresponding to required operating current, setting apparatus one end is put on workpiece, and determines with absorption surface good, then the welding rod clamped by soldering turret is touched another end of setting apparatus, and determine that contact is good, keep 2 seconds more than, test source detects resistance change, and changing value is sent to controller, electric welding machine output current is adjusted to welding current set-point by controller, and current settings process terminates.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, it should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for electric welding machine output cable remote control electric current, it is characterized in that, the method comprises: arrange one for detecting the test source of electric welding machine output loop impedance variations; Arrange a setting apparatus, when setting apparatus being adjusted to the resistance value corresponding to target current, and when the two ends of this setting apparatus being connected respectively to two outputs of electric welding machine, test source is according to the impedance variations value setting electric welding machine output current detected.
2. the method for electric welding machine output cable remote control electric current according to claim 1, is characterized in that, test source is using 500 ohm of impedances to 11K ohm as Validity Test scope.
3. the method for electric welding machine output cable remote control electric current according to claim 1, is characterized in that, setting apparatus is greater than the fixed value resistance of 500 ohm by one and the variable resistance of a 10K ohm is in series.
4. the method for electric welding machine output cable remote control electric current according to claim 1, it is characterized in that, the two ends of described setting apparatus connect soldering turret and ground wire respectively.
5. a circuit for electric welding machine output cable remote control electric current, is characterized in that, this circuit comprises:
Test source, for gathering electric welding machine output loop impedance variations value;
Controller, for adjusting electric welding machine output current according to impedance variations value;
Setting apparatus, for arranging corresponding resistance value according to target current, and is connected to two outputs of electric welding machine.
6. the method for electric welding machine output cable remote control electric current according to claim 5, it is characterized in that, described test source comprises sample circuit, power supply and isolating diode, the cathode output end of a sampling end connection electric welding machine of sample circuit, another sampling end connect the positive terminal of isolating diode by power supply, the negative pole end of isolating diode connects the cathode output end of electric welding machine.
7. the method for electric welding machine output cable remote control electric current according to claim 6, is characterized in that, described test source exports 2mA continuous current.
8. the method for electric welding machine output cable remote control electric current according to claim 5, it is characterized in that, described setting apparatus is in series by fixed value resistance and variable resistance.
9. the method for electric welding machine output cable remote control electric current according to claim 8, it is characterized in that, the resistance of described fixed value resistance is greater than 500 ohm, is less than 1K ohm.
10. the method for electric welding machine output cable remote control electric current according to claim 8, is characterized in that, the adjustable extent of described variable resistance is 0 ~ 10K ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732486.2A CN105234601A (en) | 2015-11-03 | 2015-11-03 | Method and circuit for remote control current of output cable of electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732486.2A CN105234601A (en) | 2015-11-03 | 2015-11-03 | Method and circuit for remote control current of output cable of electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105234601A true CN105234601A (en) | 2016-01-13 |
Family
ID=55032551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510732486.2A Pending CN105234601A (en) | 2015-11-03 | 2015-11-03 | Method and circuit for remote control current of output cable of electric welding machine |
Country Status (1)
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| CN (1) | CN105234601A (en) |
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-
2015
- 2015-11-03 CN CN201510732486.2A patent/CN105234601A/en active Pending
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| CN2096443U (en) * | 1991-07-06 | 1992-02-19 | 谢友夫 | Telecontrol electric current adjusting device for ac/dc welding machine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
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