CN108872759A - A kind of welding machine automatically testing parameters method - Google Patents
A kind of welding machine automatically testing parameters method Download PDFInfo
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- CN108872759A CN108872759A CN201810654423.3A CN201810654423A CN108872759A CN 108872759 A CN108872759 A CN 108872759A CN 201810654423 A CN201810654423 A CN 201810654423A CN 108872759 A CN108872759 A CN 108872759A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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Abstract
The present invention relates to welding machine the field of test technology, disclose a kind of welding machine automatically testing parameters method, based on rheostat, the current inductor and voltage sensor that are electrically connected with welding machine to be detected, include the following steps：Identify welding machine to be detected；The first test voltage is set by the output of welding machine to be detected；Carry out MIG bond pattern；Into no load test, upper limit voltage value and lower voltage limit value are determined, rheostat is set as opening a way, and judges that the open test of the welding machine to be detected is qualified；Into high-current test, judge that the high-current test of the welding machine to be detected is qualified；It is tested into low current, judges the low current test passes of the welding machine to be detected；Into short-circuit test, judge that the short-circuit test of the welding machine to be detected is qualified；Welding to be tested is tested according to step and the numerical value set, employee can judge the qualified or not of welding machine as long as the simple contrast number of step in sequence, and step is simple, result is accurate, reduce the skill requirement of tester.
Description
Technical field
The present invention relates to welding machine the field of test technology, more specifically, it relates to a kind of welding machine automatically testing parameters method.
Background technique
Welding machine refer to for weld provides certain characteristic power supply electric appliance, welding machine due to flexibly it is simple and convenient it is solid and reliable,
Each industrial circle, such as aerospace, ship, automobile, container even are widely used in the advantages of base material equality strength after welding
Deng.Welding machine needs to carry out before factory the test of parameter, and traditional welding machine parameter testing is by artificial loading, range estimation test ginseng
Number determines whether product is qualified according to nameplate parameter and national franchise standard；For current deviation beyond standard, lead to
Machine internal adjustable potentiometer parameter is overregulated, national franchise standard is reached.
But tradition passes through the testing process that the welding machine parameter testing manually estimated needs tester's test to be familiar with welding machine,
The national standard of method and welding machine, this is higher for the skill requirement of tester, when the level of skill of tester is irregular not
Qi Shi also has irregular with the result that a batch welding machine tests out.
Summary of the invention
For existing traditional welding machine parameter testing to the higher technical problem of the skill requirement of tester, the present invention is provided
A kind of welding machine automatically testing parameters method, result simple with step is accurate and reduces the excellent of tester's skill requirement
Point.
To achieve the above object, the present invention provides following technical solutions：
A kind of welding machine automatically testing parameters method is electrically connected based on the rheostat loaded on welding machine to be detected, with welding machine to be detected
The current inductor and voltage sensor connect, includes the following steps：
Identify welding machine to be detected；
The first test voltage is set by the output of the welding machine to be detected；
Carry out MIG bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test；
Into short-circuit test, upper limit voltage value, upper bound current value and lower bound current value are redefined, the rheostat is arranged
For short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if voltage value is higher than
The upper limit voltage value, and the current value between the upper bound current value and the lower bound current value, then this is to be detected
The short-circuit test of welding machine is qualified, otherwise stops test.
Through the above technical solutions, testing according to step and the numerical value set welding to be tested, employee is only
The simple contrast number of step it can judge the qualified or not of welding machine in sequence, step is simple, result is accurate, reduces survey
The skill requirement of examination personnel.
Further, further include：
Carry out MMA bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test；
Into short-circuit test, upper limit voltage value, upper bound current value and lower bound current value are redefined, the rheostat is arranged
For short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if voltage value is higher than
The upper limit voltage value, and the current value between the upper bound current value and the lower bound current value, then this is to be detected
The short-circuit test of welding machine is qualified, otherwise stops test.
Through the above technical solutions, testing with test MMA welding module can be continued after MIG bond pattern, can both survey
The welding machine with multiple bond patterns is tried, different welding machines can also be tested.
Further, for the welding machine to be detected in the state of the first test voltage, MIG bond pattern and MMA weld mould
Formula all has：
Enter the anti-viscoelastic test of short circuit after short-circuit test is qualified, upper bound current value and lower bound current value is redefined, by the change
Resistance device is set as short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if electric
Pressure value is lower than the upper limit voltage value, and the current value is between the upper bound current value and the lower bound current value, then
The anti-sticking test passes of short circuit of the welding machine to be detected, otherwise stop test.
Through the above technical solutions, the anti-viscoelastic test of short circuit can test the anti-sticking function of short circuit of welding machine, carried out without employee real
Border welding test.
Further, further include：
Carry out TIG weld mode；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test；
Into short-circuit test, upper limit voltage value, upper bound current value and lower bound current value are redefined, the rheostat is arranged
For short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if voltage value is higher than
The upper limit voltage value, and the current value between the upper bound current value and the lower bound current value, then this is to be detected
The short-circuit test of welding machine is qualified, otherwise stops test.
Through the above technical solutions, testing with test TIG weld module can be continued after MMA bond pattern, can both survey
The welding machine with multiple bond patterns is tried, it can also the different welding machine of follow-on test.
Further, the second test voltage is set by the output of the welding machine to be detected, the second test voltage is lower than the
One test voltage；
Carry out MIG bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test.
Through the above technical solutions, welding machine is tested under second test voltage of the numerical value lower than the first test voltage, thus
Working condition of the welding machine to be tested under different operating conditions is obtained, to judge whether welding machine to be tested is qualified.
Further, further include：
Carry out MMA bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test.
Further, further include：
Carry out TIG weld mode；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, and test terminates, it is no
Then stop testing.
Further, when the output of the welding machine to be detected is set as the first test voltage, the sky of MIG zero load bond pattern
Load test time is 0.5S, remaining testing time is 1S.
Through the above technical solutions, shortening idle time, to omit the testing time of unnecessary maintenance, test speed is improved
Degree.
Further, after the welding machine test to be detected terminates or stops test, the rheostat is set as opening a way.
Through the above technical solutions, rheostat is set as opening a way, next welding machine to be tested is avoided just to access and not set
When good, current boost is excessive and damages resistor or welding machine to be tested.
Compared with prior art, the beneficial effects of the invention are as follows：It is lower than by being distributed in the first test voltage and numerical value
Welding machine is tested under second test voltage of the first test voltage, allows welding machine to be tested under different operating conditions according to step and setting
Good numerical value tests welding to be tested, to judge whether welding machine to be tested is qualified, as long as employee's step letter in sequence
Single contrast number can judge the qualified or not of welding machine, can both test the welding machine with multiple bond patterns, can also continuously survey
Different welding machines is tried, step is simple, result is accurate, reduces the skill requirement of tester.
Detailed description of the invention
Fig. 1 is the testing procedure table of the embodiment of the present invention；
Fig. 2 is the parameter list of the testing procedure of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment
A kind of welding machine automatically testing parameters method, rheostat and welding machine to be detected based on load on welding machine to be detected
The current inductor and voltage sensor of electrical connection, and the control being connect respectively with current inductor and voltage sensor signal
Device processed, controller can use internal single-chip microcontroller or PLC with hardware store unit and hardware comparing unit, controller signals
It is connected with display, digital LCD or LCD screen can be used in display.Current inductor generates and is sent out electric current
Signal, voltage sensor generate and are sent out voltage signal, and controller receives current signal and voltage signal, and electric current is believed
Number employee is shown to by display with voltage signal.Controller also passes through USB module signal and is connected with mouse and keyboard, is used for
The input data into controller.Controller also signal is connected with the stop button for stopping test, after stop button is pressed
It can stop the test to welding machine to be tested.
Method includes the following steps：
It identifies welding machine to be detected, identification code is provided on welding machine to be detected, employee can pass through the mobile terminals such as code reader or mobile phone
Identification code is scanned to identify welding machine to be detected.
The first test voltage is set by the output of welding machine to be detected, the first test voltage is 230V；
It selects to carry out MIG bond pattern in the controller by mouse.
Into no load test, inputted by mouse and keyboard into controller numerical value determine upper limit voltage value be 65.5V with
Lower voltage limit value is 72.5V.Upper bound current value is 888, and the representative of lower bound current value 888,888, which is not done, to be determined, herein number 888
Only code name.Rheostat is set as opening a way, i.e., rheostat disconnects, and rheostat numerical value is 999, and number 999 represents open circuit herein,
Only code name.Testing time is 0.5S, and the judgement needs of each testing procedure qualification judge that controller reads voltage sense in 1S
The voltage value on device is answered, if voltage value, between upper limit voltage value and lower voltage limit value, the open circuit of the welding machine to be detected is surveyed
Examination is qualified, if test failure in the step and the following steps, rests on current location, welding machine interior to be tested has micro-
Potentiometer is adjusted, trimmer potentiometer can be manually adjusted by the output of welding machine to be tested and be adjusted to qualification then automatically into next survey
Try is rapid, presses stop button if it can not be adjusted to qualification to stop testing welding machine to be tested.The judgement of test passes is by controlling
Hardware comparing unit in device is completed.
Into high-current test, inputting numerical value into controller by mouse and keyboard to redefine upper limit voltage value is
25V, lower voltage limit value are 24V, upper bound current value is 210A and lower bound current value is 200A, set high current for rheostat
Resistance value, rheostat numerical value are 0.12 Ω.Testing time is 1S, is read on the voltage value and current inductor on voltage sensor
Current value, if voltage value, between upper limit voltage value and lower voltage limit value, and current value is located at upper bound current value and lower limit
Between current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines that upper limit voltage value is 16V, lower voltage limit value is 15.5V, upper bound current value 40A
And lower bound current value is 30A, sets low current resistance value for rheostat, rheostat numerical value is 0.4 Ω.Testing time is 1S,
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value between upper bound current value and lower bound current value, then the low current of the welding machine to be detected is tested
Otherwise qualification stops test；
Into short-circuit test, redefine upper limit voltage value be 10V, lower voltage limit value is 888, upper bound current value be 350A and
Lower bound current value is 320A, sets short circuit for rheostat, rheostat numerical value is 0 Ω.Testing time is 1S, reads voltage induced
The current value on voltage value and current inductor on device, if voltage value is higher than upper limit voltage value, and current value is located at the upper limit
Between current value and lower bound current value, then the short-circuit test of the welding machine to be detected is qualified, otherwise stops test.
It into the anti-viscoelastic test of short circuit, redefines that upper bound current value is 20A and lower bound current value is 0A, rheostat is set
It is set to short circuit.Testing time is 1S, the current value on the voltage value and current inductor on voltage sensor is read, if voltage
Value is lower than upper limit voltage value, and current value is between upper bound current value and lower bound current value, then the short circuit of the welding machine to be detected
Otherwise anti-sticking test passes stop test.
Further include：
Carry out MMA bond pattern；
Into no load test, determine that upper limit voltage value is 65.5V and lower voltage limit value is 72.5V, upper bound current value 888, under
Flow valuve of rationing the power supply is 888.Rheostat is set as opening a way, testing time 1S.The voltage value on voltage sensor is read, if voltage
Value is between upper limit voltage value and lower voltage limit value, then the open test of the welding machine to be detected is qualified, otherwise stops test；
Into high-current test, redefine that upper limit voltage value is 28V, lower voltage limit value is 27.2V, upper bound current value 190A
And lower bound current value is 180A, sets high current resistance value for rheostat, rheostat numerical value is 0.15 Ω.Testing time is
1S, read voltage sensor on voltage value and current inductor on current value, if voltage value be located at upper limit voltage value and
Between lower voltage limit value, and current value is between upper bound current value and lower bound current value, then the high current of the welding machine to be detected
Otherwise test passes stop test；
It is tested into low current, redefines that upper limit voltage value is 20.4V, lower voltage limit value is 19V, upper bound current value 10A
And lower bound current value is 5A, sets high current resistance value for rheostat, rheostat numerical value is 2.04 Ω.Testing time is 1S,
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value between upper bound current value and lower bound current value, then the low current of the welding machine to be detected is tested
Otherwise qualification stops test；
Into short-circuit test, redefine upper limit voltage value be 10V, lower voltage limit value is 888, upper bound current value be 350A and
Lower bound current value is 320A, sets short circuit for rheostat, rheostat numerical value is 0 Ω.Testing time is 1S, reads voltage induced
The current value on voltage value and current inductor on device, if voltage value is higher than upper limit voltage value, and current value is located at the upper limit
Between current value and lower bound current value, then the short-circuit test of the welding machine to be detected is qualified, otherwise stops test.
Enter the anti-viscoelastic test of short circuit after short-circuit test is qualified, redefining upper bound current value is 20A and lower bound current value
For 0A, short circuit is set by rheostat.Testing time is 1S, is read on the voltage value and current inductor on voltage sensor
Current value, if voltage value is lower than upper limit voltage value, and current value is positioned at upper bound current value and lower bound current value between, then this to
The anti-sticking test passes of short circuit for detecting welding machine, otherwise stop test.
Carry out TIG weld mode；
Into no load test, determine that upper limit voltage value is 20V and lower voltage limit value is 10V, upper bound current value 888, under ration the power supply
Flow valuve is 888.Rheostat is set as opening a way, testing time 1S.The voltage value on voltage sensor is read, if voltage value position
Between upper limit voltage value and lower voltage limit value, then the open test of the welding machine to be detected is qualified, otherwise stops test；
Into high-current test, redefine that upper limit voltage value is 18V, lower voltage limit value is 17.2V, upper bound current value 190A
And lower bound current value is 180A, sets high current resistance value for rheostat, rheostat numerical value is 0.1 Ω.Testing time is 1S,
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value is between upper bound current value and lower bound current value, then the high-current test of the welding machine to be detected
Otherwise qualification stops test；
Tested into low current, redefine upper limit voltage value be 10.4V, lower voltage limit value is 9V, upper bound current value be 10A with
And lower bound current value is 5A, sets low current resistance value for rheostat, rheostat numerical value is 0.05 Ω.Testing time is 1S, is read
The current value on the voltage value and current inductor on voltage sensor is taken, if voltage value is located at upper limit voltage value and rations the power supply under
Between pressure value, and current value between upper bound current value and lower bound current value, then the low current of the welding machine to be detected, which is tested, closes
Otherwise lattice stop test；
Into short-circuit test, redefine upper limit voltage value be 10V, lower voltage limit value is 888, upper bound current value be 80A and
Lower bound current value is 60A, sets short circuit for rheostat, rheostat numerical value is 0 Ω.Testing time is 1S, reads voltage induced
The current value on voltage value and current inductor on device, if voltage value is higher than upper limit voltage value, and current value is located at the upper limit
Between current value and lower bound current value, then the short-circuit test of the welding machine to be detected is qualified, otherwise stops test.
The second test voltage is set by the output of welding machine to be detected, the second test voltage is 110V.
Carry out MIG bond pattern；
Into no load test, determine that upper limit voltage value is 65.5V and lower voltage limit value is 72.5V, lower bound current value 888,
888 representatives, which are not done, to be determined, number 888 is code name herein.Rheostat is set as opening a way, i.e., rheostat disconnects, rheostat number
Value is 999, and number 999 represents open circuit herein, only code name.Testing time is 1S, reads the voltage value on voltage sensor, if
Voltage value is between upper limit voltage value and lower voltage limit value, then the open test of the welding machine to be detected is qualified, otherwise stops surveying
Examination；
Into high-current test, it is redefined as 19.5V, lower voltage limit value is 18.5V, upper bound current value is 100A and lower limit
Current value is 90A, sets high current resistance value for rheostat, rheostat numerical value is 0.2 Ω.Testing time is 1S, reads voltage
The current value on voltage value and current inductor on inductor, if voltage value be located at upper limit voltage value and lower voltage limit value it
Between, and current value between upper bound current value and lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise
Stop test；
It is tested into low current, redefines that upper limit voltage value is 16V, lower voltage limit value is 15.5V, upper bound current value 40A
And lower bound current value is 30A, sets low current resistance value for rheostat, rheostat numerical value is 0.4 Ω.Testing time is 1S,
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value between upper bound current value and lower bound current value, then the low current of the welding machine to be detected is tested
Otherwise qualification stops test.
Further include：
Carry out MMA bond pattern；
Into no load test, determine that upper limit voltage value is 65.5V and lower voltage limit value is 72.5V, upper bound current value 888, under
Flow valuve of rationing the power supply is 888.Rheostat is set as opening a way, testing time 1S.The voltage value on voltage sensor is read, if voltage
Value is between upper limit voltage value and lower voltage limit value, then the open test of the welding machine to be detected is qualified, otherwise stops test；
Into high-current test, redefine that upper limit voltage value is 24V, lower voltage limit value is 22.8V, upper bound current value 80A
And lower bound current value is 70A, sets high current resistance value for rheostat, rheostat numerical value is 0.32 Ω, testing time 1S.
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value is between upper bound current value and lower bound current value, then the high-current test of the welding machine to be detected
Otherwise qualification stops test；
It is tested into low current, redefines that upper limit voltage value is 20.4V, lower voltage limit value is 19V, upper bound current value 10A
And lower bound current value is 5A, sets high current resistance value for rheostat, rheostat numerical value is 2.04 Ω, testing time 1S.
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value between upper bound current value and lower bound current value, then the low current of the welding machine to be detected is tested
Otherwise qualification stops test.
Further include：
Carry out TIG weld mode；
Into no load test, determine that upper limit voltage value is 20V and lower voltage limit value is 10V, upper bound current value 888, under ration the power supply
Flow valuve is 888.Rheostat is set as opening a way, testing time 1S.The voltage value on voltage sensor is read, if voltage value position
Between upper limit voltage value and lower voltage limit value, then the open test of the welding machine to be detected is qualified, otherwise stops test；
Into high-current test, redefine that upper limit voltage value is 15V, lower voltage limit value is 13.6V, upper bound current value 100A
And lower bound current value is 90A, sets high current resistance value for rheostat, rheostat numerical value is 0.15 Ω, testing time 1S.
The current value on the voltage value and current inductor on voltage sensor is read, if voltage value is located at upper limit voltage value and lower limit
Between voltage value, and current value is between upper bound current value and lower bound current value, then the high-current test of the welding machine to be detected
Otherwise qualification stops test；
Tested into low current, redefine upper limit voltage value be 10.4V, lower voltage limit value is 9V, upper bound current value be 10A with
And lower bound current value is 5A, sets low current resistance value for rheostat, rheostat numerical value is 0.05 Ω, testing time 1S.It reads
The current value on the voltage value and current inductor on voltage sensor is taken, if voltage value is located at upper limit voltage value and rations the power supply under
Between pressure value, and current value between upper bound current value and lower bound current value, then the low current of the welding machine to be detected, which is tested, closes
Lattice, and test terminates, and otherwise stops test.
MIG bond pattern, MMA bond pattern, the test of TIG weld mode are successively carried out to welding machine to be tested, according to step
And the numerical value set tests welding to be tested, surveys under second test voltage of the numerical value lower than the first test voltage
Test weld machine, so that working condition of the welding machine to be tested under different operating conditions is obtained, to judge whether welding machine to be tested is qualified.Employee
The qualified or not of welding machine can be judged as long as the simple contrast number of step in sequence, step is simple, result is accurate, reduces
The skill requirement of tester.After welding machine test to be detected terminates or stops test, rheostat is set as opening a way, by rheostat
Be set as opening a way, when next welding machine to be tested being avoided just to access and is not set good, current boost it is excessive and damage resistor or
Welding machine to be tested.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of welding machine automatically testing parameters method, which is characterized in that based on rheostat of the load on welding machine to be detected, with to
The current inductor and voltage sensor for detecting welding machine electrical connection, include the following steps：
Identify welding machine to be detected；
The first test voltage is set by the output of the welding machine to be detected；
Carry out MIG bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test；
Into short-circuit test, upper limit voltage value, upper bound current value and lower bound current value are redefined, the rheostat is arranged
For short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if voltage value is higher than
The upper limit voltage value, and the current value between the upper bound current value and the lower bound current value, then this is to be detected
The short-circuit test of welding machine is qualified, otherwise stops test.
2. welding machine automatically testing parameters method according to claim 1, which is characterized in that further include：
Carry out MMA bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test；
Into short-circuit test, upper limit voltage value, upper bound current value and lower bound current value are redefined, the rheostat is arranged
For short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if voltage value is higher than
The upper limit voltage value, and the current value between the upper bound current value and the lower bound current value, then this is to be detected
The short-circuit test of welding machine is qualified, otherwise stops test.
3. welding machine automatically testing parameters method according to claim 2, which is characterized in that the welding machine to be detected is first
In the state of test voltage, MIG bond pattern all has with MMA bond pattern：
Enter the anti-viscoelastic test of short circuit after short-circuit test is qualified, upper bound current value and lower bound current value is redefined, by the change
Resistance device is set as short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if electric
Pressure value is lower than the upper limit voltage value, and the current value is between the upper bound current value and the lower bound current value, then
The anti-sticking test passes of short circuit of the welding machine to be detected, otherwise stop test.
4. welding machine automatically testing parameters method according to claim 3, which is characterized in that further include：
Carry out TIG weld mode；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test；
Into short-circuit test, upper limit voltage value, upper bound current value and lower bound current value are redefined, the rheostat is arranged
For short circuit, the current value on the voltage value and the current inductor on the voltage sensor is read, if voltage value is higher than
The upper limit voltage value, and the current value between the upper bound current value and the lower bound current value, then this is to be detected
The short-circuit test of welding machine is qualified, otherwise stops test.
5. welding machine automatically testing parameters method according to claim 4, which is characterized in that by the defeated of the welding machine to be detected
It is set as the second test voltage out；
Carry out MIG bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as low current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test.
6. welding machine automatically testing parameters method according to claim 5, which is characterized in that further include：
Carry out MMA bond pattern；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, otherwise stops test.
7. welding machine automatically testing parameters method according to claim 6, which is characterized in that further include：
Carry out TIG weld mode；
Into no load test, upper limit voltage value and lower voltage limit value are determined, the rheostat is set as opening a way, read the electricity
The voltage value on inductor is pressed, if voltage value is between the upper limit voltage value and the lower voltage limit value, this is to be detected
The open test of welding machine is qualified, otherwise stops test；
Into high-current test, upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value are redefined, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the high-current test of the welding machine to be detected is qualified, otherwise stops test；
It is tested into low current, redefines upper limit voltage value, lower voltage limit value, upper bound current value and lower bound current value, it will
The rheostat is set as high current resistance value, reads on the voltage value and the current inductor on the voltage sensor
Current value, if the voltage value, between the upper limit voltage value and the lower voltage limit value, and the current value is located at institute
It states between upper bound current value and the lower bound current value, then the low current test passes of the welding machine to be detected, and test terminates, it is no
Then stop testing.
8. welding machine automatically testing parameters method according to claim 7, which is characterized in that the output of the welding machine to be detected
When being set as the first test voltage, no load test duration of MIG zero load bond pattern is 0.5S, remaining testing time is
1S。
9. welding machine automatically testing parameters method according to claim 7, which is characterized in that the welding machine test knot to be detected
Beam stops after testing, and the rheostat is set as opening a way.
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