CN102189315B - Arc welding device - Google Patents
Arc welding device Download PDFInfo
- Publication number
- CN102189315B CN102189315B CN201110059208.7A CN201110059208A CN102189315B CN 102189315 B CN102189315 B CN 102189315B CN 201110059208 A CN201110059208 A CN 201110059208A CN 102189315 B CN102189315 B CN 102189315B
- Authority
- CN
- China
- Prior art keywords
- gas
- mass flow
- welding
- flow controller
- solenoid valve
- 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.)
- Active
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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/0052—Gripping heads and other end effectors multiple gripper units or multiple end effectors
- B25J15/0066—Gripping heads and other end effectors multiple gripper units or multiple end effectors with different types of end effectors, e.g. gripper and welding gun
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/16—Programme controls
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45104—Lasrobot, welding robot
Abstract
If a single member of a mass flow controller is used for controlling the flow of protective gas, a state of insufficient gas flow exists when welding is started. The present invention provides an arc welding device (1) which is provided with the following components: a mass flow controller (31), and a gas passage which is used for supplying gas from a cylinder (30) to a welding torch (7) through the mass flow controller (31). A gas electromagnetic valve (33) is provided at the gas passage between the mass flow controller (31) and the welding torch (7). When a robot controller (16) is in air stoppage, switching-off of the gas electromagnetic valve (33) is caused. Afterwards, after a preset delay time period, gas output from the mass flow controller (31) is stopped. Switching-on operation of the gas electromagnetic valve (31) is caused when a next time of gas output is started, and simultaneously the gas output from the mass flow controller (31) is started. Through ejection of the filled gas, insufficient gas flow when the single member of the mass flow controller (31) can be complemented.
Description
Technical field
The present invention relates to the arc-welding apparatus after the improvement for carrying out gas protective arc welding.
Background technology
In the gas protective arc welding of consumable electrode formula or non-melt electric pole type, to need electric arc and blanket gas such as molten bath ejection carbon dioxide, argon gas etc., to shield air, to prevent air from invading in welding atmosphere.The flow control of blanket gas is very important in certain permissible range.When gas flow is less, because air to invade in welding atmosphere thus the state of electric arc becomes unstable, therefore produces bubble, or produce sputtering in a large number.Otherwise when gas flow is too much, because produce turbulent flow, so it is bad sometimes to become protection, or produce insufficient (incomplete) penetration etc.Its result, the deteriorated appearance of weld seam, becomes failure welding sometimes.
Coming in the general arc-welding apparatus of opening/closing blanket gas with solenoid valve, when opening solenoid valve, in preflow process required when namely starting to weld, the blanket gas crossing large discharge is ejected.This phenomenon is expressed as prominent stream below.Prominent stream is according to piping length, pressure, close from gas last time the elapsed time etc. started, and its peak flow is different with the duration, therefore after ejection blanket gas, also different to the time of flow control in permissible range.Below an example is described.In addition, above-mentioned to close from gas last time the elapsed time started be represent when existing continuously between multiple weld zone, the elapsed time the output stopping of the blanket gas between last time weld zone.
Fig. 5 is the figure of the pattern of prominent stream for illustration of blanket gas.The figure shows when making setting flow be 15 public liters/min, is several seconds according to the elapsed time closing from gas last time, and gas flow along with the time through how to change.The fluctuations in discharge when elapsed time of this figure (a) expression from gas last time is closed is 4 seconds.Equally, this figure (b) represents 3 seconds, this figure (c) represents 2 seconds, this figure (d) represents 1 second, fluctuations in discharge when this figure (e) represents 0.5 second.As shown in the drawing, the time soon after opening solenoid valve, due to prominent stream thus the gas of the flow of surplus be ejected, along with the process of time, close to the setting flow specified with gas flow setting apparatus (being 15 public affairs liter/min in the figure).If suppose, the preflow time has been configured to 0.5 second, then, such as in this figure (a), under the state of blanket gas outputing about 42 public liters/min, carry out striking process, therefore likely produce above-mentioned this failure welding.
For suppressing the technology of the prominent stream welding beginning, be disclosed in patent documentation 1 and 2.In patent documentation 1, disclose and be arranged in series two solenoid valves and the arc-welding apparatus (hereinafter referred to as conventional art 1) of simultaneously opening/closing.In addition, in patent documentation 2, the welder (hereinafter referred to as conventional art 2) of the gas flow rate control unit possessing the machineries such as throttle orifice is disclosed.According to conventional art 1 and 2, by using mechanical means to suppress prominent stream, serving the generation that can prevent failure welding, and also can save the effect of the consumption of blanket gas.
On the other hand, not only need the prominent stream suppressing welding beginning, and need the gas flow in arc welding to maintain most suitable flow.As described in Figure 5, gas flow is after the prominent stream convergence of welding beginning, and the close setting flow that specifies with gas flow regulator also becomes fixing.If become fixing on the gas flow of appropriateness, then failure welding can not be caused.But such as, when using the arc-welding apparatus such as arc welding robot to weld, a general workpiece has multiple welding position, and different according to welding position, and the different situation such as bevel shape, welding process, thickness of slab is also a lot.In this case, the setting flow of blanket gas is preferably changed according to each welding position.Such as, compared with the situation being generally overlapping fillet weld with bevel shape, when fillet weld in the flat position, even if the setting flow mostly reducing blanket gas is also no problem.But, because gas flow is the fixed amount specified with gas flow regulator, thus the gas flow existed in arc welding under the state that former state keeps more by situation about using.In the case, the possibility having blanket gas to be wasted.
Technology for solving this problem is disclosed in patent documentation 3.In patent documentation 3, disclose the gas processing plant (hereinafter referred to as conventional art 3) that a kind of service property (quality) flow (mass flow) controller dynamically controls gas flow.In general, mass flow controller can change the setting of gas flow from outside, controlled by built-in gas flow detector and gas flow regulator, with the gas flow making actual gas flow become setting, and also can carry out output and the stopping of gas with mass flow controller monomer.According to conventional art 3, by dynamically controlling gas flow, most suitable flow can be maintained, and the consumption of blanket gas can be saved.
As mentioned above, in conventional art 1 and 2, although the prominent stream welding beginning can be suppressed, dynamically cannot change gas flow, therefore the gas flow in arc welding cannot be adjusted to most suitable value.On the other hand, in conventional art 3, by service property (quality) flow controller, the prominent stream welding beginning can either be suppressed, the gas flow in arc welding can be adjusted to most suitable value again.But, but there is problem described later.
Patent documentation 1:JP JP 62-207584 publication
Patent documentation 2:JP JP 2006-326677 publication
Patent documentation 3:JP Unexamined Patent 8-200634 publication
Fig. 6 is the figure of the fluctuations in discharge of the blanket gas represented in conventional art.This figure (a) is the sequential chart of gas control signal, moment t1 becomes from closedown and opens.This figure (b) be by gas control signal opening/closing after result, be the figure representing how gas flow changes along with the process of time.In this figure (b), waveform Ha represents waveform when only carrying out the control of blanket gas with a solenoid valve, and waveform Hb represents the mass flow controller by above-mentioned conventional art 3, waveform when gas flow is under control.
In conventional art 3, as shown in waveform Hb, during moment t1 to t2 (about about 1 second.Hereinafter referred to as setting flow time of arrival.) in, gas flow is increased gradually and reaches setting flow.Mass flow controller, being reached making actual gas flow before setting flow, being inhibit prominent stream by cost certain hour.
If start welding, then because do not guarantee the gas flow needed, so likely produce weld defects owing to protecting bad within above-mentioned setting flow time of arrival.There is following problem: gas flow required when starting in order to ensure welding, need to wait for that gas flow reaches setting flow, therefore become the delay reason of cycle length.Although also there is the high performance mass flow controller that above-mentioned setting flow is about 0.3 second time of arrival, exist because very high price is so be difficult to the problem imported.
Therefore, the object of the invention is to, provide a kind of and can use gas solenoid valve and less expensive mass flow controller, promptly guarantee the arc-welding apparatus welding gas flow required when starting.
Summary of the invention
1st invention is a kind of arc-welding apparatus, it has the mass flow controller by carrying out the output of blanket gas, stopping and flow adjustment from the signal input of outside, and the gas passage possessed for described blanket gas to be supplied to via described mass flow controller welding torch from gas providing source, the feature of described arc-welding apparatus is, possess: gas solenoid valve, it is arranged on the gas passage between described welding torch and described mass flow controller; And gas control unit; it carrys out gauge tap action to this gas solenoid valve output solenoid valve switching signal; and gas control signal is exported to described mass flow controller; described gas control unit is when described blanket gas stops; first described gas solenoid valve is made to carry out pass action; then after have passed through prespecified time delay; the gas from described mass flow controller is made to stop exporting; and when next gas exports beginning; carry out starting work making described gas solenoid valve while, start to export gas from described mass flow controller.
2nd invention is the arc-welding apparatus described in the 1st invention, it is characterized in that, in the half-way of the gas passage between described mass flow controller and described gas solenoid valve, possesses the impermeability air chamber for enclosing described blanket gas.
3rd invention is the arc-welding apparatus described in the 1st or the 2nd invention, it is characterized in that, described gas control unit is the robot controller according to pre-made designation data, the mechanical arm carrying described welding torch being carried out to drived control.
4th invention is the arc-welding apparatus described in the 3rd invention, it is characterized in that, described time delay can be set by the teaching machine for being made described designation data.
According to the 1st invention; possess both gas solenoid valve and mass flow controller, when blanket gas stops, first close gas solenoid valve; then, after have passed through prespecified time delay, gas stop signal is exported to mass flow controller and stops blanket gas.Thus, the blanket gas of more than authorised pressure is filled with in the gas passage between gas solenoid valve and mass flow controller.And; when next gas exports; by exporting gas from both gas solenoid valve and mass flow controller simultaneously; the blanket gas of filling is released quickly; thus produce not to the small prominent stream of the degree that welding quality has an impact, and can guarantee rapidly to weld and start required gas flow.
According to the 2nd invention; in half-way by the gas passage between mass flow controller and gas solenoid valve; possessing the impermeability air chamber for enclosing blanket gas, on the basis of the effect that can play in the 1st invention, preventing from gas passage, fill unnecessary blanket gas.
According to the 3rd invention, by making robot controller to carry out the gas for gas solenoid valve and mass flow controller to export control, the effect that easily performance the 1st and the 2nd invention of special opertaing device ground is played can not be used.
According to the 4th invention, by making it possible to set described time delay by the teaching machine for being made designation data, on the basis of the effect that the invention the 1st ~ 3rd is played, at random can set time delay according to welding surroundings such as the diameter of flue, gaseous tensions.
Accompanying drawing explanation
Fig. 1 is the structural drawing of arc-welding apparatus involved in the present invention.
Fig. 2 is the connection layout of the gas passage for illustration of arc-welding apparatus involved in the present invention.
Fig. 3 is the functional block diagram of the inner structure representing robot controller.
Fig. 4 is the figure controlled for illustration of the output of blanket gas of the present invention.
Fig. 5 is the figure of the pattern of prominent stream for illustration of gas.
Fig. 6 is the figure of the fluctuations in discharge of the blanket gas represented in conventional art.
The explanation of symbol
1 arc-welding apparatus
2 workpiece
3 sources of welding current
7 welding torches
13 welding wires
14 mechanical arms
15 teaching machines (teach pendant)
16 robot controllers
21 job procedure analysis units
22 hard disks
23 metro planning portions
24 memory buffer
25 servo control portion
26 servo driving portions
27 present position monitoring units
28 welding control parts
30 cylinders
31 mass flow controllers
32 air chambers
33 gas solenoid valves
34a upstream side gas passage
Gas passage, 34b downstream
35 pipe-lines
Ds electromagnetic valve switch signal
Dt time delay
Dw job procedure
Gv gas flow setting value
Ha waveform
Hb waveform
Hc waveform
Mc action control signal
Mg pneumatic output signal
Ms gas flow setting signal
Ws welds control signal
Embodiment
According to embodiment, with reference to accompanying drawing, working of an invention mode is described.
Fig. 1 is the structural drawing of arc-welding apparatus 1 involved in the present invention.As shown in the drawing, arc-welding apparatus 1 is made up of mechanical arm 14, teaching machine 15, robot controller 16 and the source of welding current 3 substantially.
In the figure, mechanical arm 14 pairs of workpiece 2 automatically carry out arc welding, by multiple arm and wrist portion, and form for the multiple servomotors (all not shown) they being carried out to rotary actuation.On the fore-end of the upper arm of this mechanical arm 14, welding torch 7 is installed.Welding torch 7 is for guiding the sealing wire be instructed on workpiece 2 into by the welding wire 13 of diameter about the 1mm be wrapped on wire reel (not shown).
Teaching machine 15 inputs each indication point, the welding condition (welding current, weldingvoltage, speed of welding etc.) in the interval of carrying out welding processing as job procedure Dw, or preset gas flow setting value Gv and time delay Dt, these are imported in robot controller 16.Gas flow setting value Gv is the most suitable flow corresponding to welding position, can by the prespecified desired value of teaching machine 15.Time delay, Dt made aftermentioned gas solenoid valve 33 carry out the timing of pass action for adjusting, and the gas of mass flow controller 31 stops the time of timing.
Robot controller 16 makes an explanation to the job procedure Dw inputted from teaching machine 15, and in the timing of the regulation based on explanation results, action control signal Mc is outputted to mechanical arm 14.Equally, welding control signal Ws, electromagnetic valve switch signal Ds, pneumatic output signal Mg and gas flow setting signal Ms are outputted to the source of welding current 3.
Welding control signal Ws from robot controller 16 as input, is carried out the power supply between welding torch 7 and workpiece 2 by the source of welding current 3.Further, using the electromagnetic valve switch signal Ds from robot controller 16 as input, export for making aftermentioned gas solenoid valve 33 carry out the command signal of switch motion.And, using pneumatic output signal Mg and gas flow setting signal Ms as input, aftermentioned mass flow controller 31 is exported and is used for blanket gas being exported or stopping, or the command signal of the flow of setting blanket gas.
Mass flow controller 31 is connected with the source of welding current 3, according to the input from the source of welding current 3, makes providing self to export or stopping of blanket gas.And, adjust the flow of the blanket gas provided by cylinder 30, to become the gas flow setting value Gv preset.Gas solenoid valve 33 is also connected with the source of welding current 3, and carries out switch motion according to the input from the source of welding current 3 to solenoid valve.
Next, the allocation position of gas solenoid valve 33 and mass flow controller 31 etc. is described.
Fig. 2 is the connection layout of the gas passage for illustration of arc-welding apparatus involved in the present invention.In the figure, be filled in the blanket gas in cylinder 30, be provided to mass flow controller 31 by upstream side gas passage 34a.Mass flow controller 31 adjusts the flow of blanket gas.Blanket gas after flow adjustment is provided to gas passage, downstream 34b via having bubble-tight air chamber 32.Gas passage, downstream 34b arranges in the mode of the side along mechanical arm 14, is connected with the gas solenoid valve 33 be arranged near welding torch 7.Blanket gas is supplied to welding torch 7 via the air hose (not shown) of the inside being arranged at pipe-line 35 by its switch motion by gas solenoid valve 33.Its result, sprays blanket gas from welding torch 7.
Fig. 3 is the functional block diagram of the inner structure representing robot controller 16.Robot controller 16 is made up of microcomputer and various storeies etc., in more detail, possess, job procedure analysis unit 21, hard disk 22, metro planning portion 23, RAM8, memory buffer 24, servo control portion 25, servo driving portion 26, present position monitoring unit 27 and welding control part 28.
Be nonvolatile memory as storing the hard disk 22 of means, be previously stored with job procedure Dw, time delay Dt, gas flow setting value Gv etc.
Job procedure analysis unit 21 reads the job procedure Dw be kept in hard disk 22 in each instruction step, and resolves its content.Such as, job procedure analysis unit 21 reads the movement directive (being made up of the data such as coordinate, velocity information) be included in in job procedure, and notifies to metro planning portion 23.Further, obtain the timing starting and terminate gas and export, inform metro planning portion 23.
The various movement directives sent here from job procedure analysis unit 21 are kept in memory buffer 24 by metro planning portion 23.In this movement directive, be also endowed the timing etc. of gas output/stopping.In addition, metro planning portion 23 reads the movement directive be kept in memory buffer 24, formulates the metro planning of welding torch 7 on this basis, and by the message notice such as rotation angle, rotational speed of each motor of mechanical arm 14 to servo control portion 25.
Memory buffer 24 is made up of the storer of so-called first-in first-out (FIFO:first-in first-out), preserves the movement directive sent here from metro planning portion 23.
Drive singal is sent to servo driving portion 26 to carry out rotary actuation according to each motor of metro planning to mechanical arm 14 sent here from metro planning portion 23 by servo control portion 25.In addition, servo control portion 25 obtains the output from not shown scrambler, and this information is sent to present position monitoring unit 27.
Servo driving portion 26 comes each motor output action control signal Mc according to the instruction from servo control portion 25.
Present position monitoring unit 27, according to the detection signal from the not shown scrambler be arranged on each motor of mechanical arm 14, monitors the present position of welding torch 7.
Welding control part 28, by the various orders from present position monitoring unit 27 being outputted to the source of welding current 3 in suitable process timing, makes welding torch 7 carry out the ejection of welding and blanket gas.More particularly, welding control part 28, in the process timing of being specified by present position monitoring unit 27, exports electromagnetic valve switch signal Ds, pneumatic output signal Mg for making blanket gas spray and gas flow setting signal Ms to the source of welding current 3.In addition, weld control part 28 and export welding control signal Ws for being undertaken welding by the source of welding current 3 according to the welding control command from present position monitoring unit 27.
Servo driving portion 26 carrys out each motor sending action control signal Mc to mechanical arm 14 according to the driving order from servo control portion 25.
Next, the action of arc-welding apparatus 1 is described.If have input enabling signal to robot controller 16, then job procedure analysis unit 21 couples of job procedure Dw make an explanation to carry out the computings such as metro planning, and carry out each motor output action control signal Mc to mechanical arm 14 according to operation result, and welding control signal Ws, electromagnetic valve switch signal Ds, pneumatic output signal Mg, gas flow setting signal Ms etc. are exported to the source of welding current 3.Its result, welding torch 7 arrives welding start position, and the blanket gas corresponding to gas flow setting value Gv is output.After starting welding, terminate welding after making welding torch 7 move to welding end position, and carry out creep (after flow) control.A series of actions so far is identical with above-mentioned conventional art.
When being indicated by job procedure Dw between the multiple weld zones carrying out welding procedure; above-mentioned series of steps is performed successively according to each between multiple weld zone; but in the present invention; when starting the output of blanket gas in when making blanket gas stop and between next weld zone; carry out following process; when starting to make the welding between next weld zone, promptly can guarantee the gas flow needed.
Fig. 4 is the figure controlled for illustration of the output of blanket gas of the present invention.This figure (a) represents the sequential chart of the opening/closing (switch) of gas solenoid valve 33, and this figure (b) represents the sequential chart of the opening/closing (gas exports/stops) of mass flow controller 31.This figure (c) be with waveform Hc illustrate in the timing of this figure (a) and (b), carried out stopping and the output of blanket gas; when upper once welding beginning, gas flow is along with the figure through how to change of time.In this figure (c), waveform Ha represented by dashed line and waveform Hb is the waveform in conventional art, records to compare with waveform Hc of the present invention.Waveform Ha is waveform when only carrying out the control of blanket gas with a solenoid valve, and waveform Hb is the mass flow controller by conventional art 3, waveform when gas flow is under control.
(1. moment t1)
Moment t1 is the timing that creep process completes.As shown in this figure (a), robot controller 16 only exports gas solenoid valve 33 via the source of welding current 3 and closes actuating signal (electromagnetic valve switch signal Ds is set to closedown).By this process, gas solenoid valve 33 is closed, and in the gas passage therefore between gas solenoid valve 33 to welding torch 7, does not provide blanket gas.
(2. during moment t1 ~ t2)
During moment t1 ~ t2, gas solenoid valve 33 is closed condition, and on the other hand, mass flow controller 31 continues the output of blanket gas.Thus, in the gas passage between mass flow controller 31 to gas solenoid valve 33, more than authorised pressure the blanket gas of (more than pressure when being usually provided) is filled.Now, by possessing, there is bubble-tight air chamber 32, blanket gas unnecessary in gas passage can be prevented to be filled.
(3. moment t2)
Moment t2 is the moment that have passed through Dt prespecified time delay from moment t1.Robot controller 16, in the timing of this moment t2, exports the stop signal (pneumatic output signal Mg is set to closedown) of gas via the source of welding current 3 pairs of mass flow controllers 31.By this process, providing of blanket gas stops completely.
(4. moment t3)
Moment t3 be welding in order to carry out next time between weld zone and start the timing of the output of blanket gas.Robot controller 16 carries out starting work to make gas solenoid valve 33, and is set to by electromagnetic valve switch signal Ds and opens.Meanwhile, in order to the output making mass flow controller 31 start gas, and pneumatic output signal Mg is set to opens.
(5. moment t3 ~ t4)
By mass flow controller 31 and gas solenoid valve 33 being opened simultaneously, the blanket gas be filled in the gas passage between mass flow controller 31 to gas solenoid valve 33 is released quickly.Fluctuations in discharge is now waveform Hc.In the conventional art 3 being used alone mass flow controller 31, it is such that fluctuations in discharge becomes waveform Hb, there is the danger of underfed.On the other hand, in the present invention, as shown in waveform Hc, can produce not to the small prominent stream of the degree that welding quality has an impact, flow (oblique line portion) not enough in conventional art 3 can be replenished.
At this, Dt above-mentioned time delay is supplemented.The flow of blanket gas is driven by the various factors in following welding surroundings: from mass flow controller 31 to the volume etc. of the set pressure of the piping length of gas solenoid valve 33, tube diameter, cylinder 30, setting flow, air chamber 32.Certainly, time delay, Dt was also driven by these factors, but Dt time delay is preferably generation not to the time of the prominent stream of the degree that welding quality has an impact.Applicant has prepared the above-mentioned welding surroundings of tens of type, constantly gropes and the result of repeatedly testing, time delay Dt preferably about 0.5 ~ 0.6 second (hereinafter referred to as reference value.)。Certainly, when not being contained in the welding surroundings in the above-mentioned type, as Dt time delay, said reference is worth inapplicable situation also likely.In the case, obtain the time delay corresponding to welding surroundings by experiment, or revise reference value etc. according to the welding procedure result of reality, and carry out adjusting with teaching machine 15.
As mentioned above; possess both gas solenoid valve 33 and mass flow controller 31, when blanket gas stops, first close gas solenoid valve 33; then, after have passed through Dt prespecified time delay, gas stop signal is exported to stop blanket gas to mass flow controller 31.Thus, the blanket gas of more than authorised pressure is filled with in the gas passage between gas solenoid valve 33 and mass flow controller 31.And; when next gas exports; by exporting gas from both gas solenoid valve and mass flow controller simultaneously; the blanket gas of filling is released quickly; thus produce not to the small prominent stream of the degree that welding quality has an impact, and can guarantee rapidly to weld and start required gas flow.In addition, because do not need to wait for that gas flow reaches setting flow, so can shorten cycle length.
In addition, in the half-way by the gas passage between mass flow controller 31 and gas solenoid valve 33, possess, for what enclose blanket gas, there is bubble-tight air chamber 32, can prevent from filling unnecessary blanket gas in gas passage.
In addition, being undertaken exporting for the gas of mass flow controller 31 by making robot controller 16 controlling, playing above-mentioned effect while special opertaing device can not be used.
In addition, by enabling time delay Dt be set by teaching machine 15, at random time delay can be set according to welding surroundings such as the diameter of flue, gaseous tensions.
In addition, in the above-described embodiment, mass flow controller 31 is connected with the source of welding current 3 with gas solenoid valve 33.Further, export following signal by robot controller 16 pairs of sources of welding current 3: for carry out the switch motion of gas solenoid valve 33 electromagnetic valve switch signal Ds, for make mass flow controller 31 carry out the output/stopping of blanket gas pneumatic output signal Mg, for carrying out the gas flow setting signal Ms of the flow set of blanket gas.Also which can not be adopted, but adopt by mass flow controller 31 is connected with robot controller 16 with gas solenoid valve 33, directly above-mentioned electromagnetic valve switch signal Ds, pneumatic output signal Mg and gas flow setting signal Ms are exported to mass flow controller 31 and gas solenoid valve 33 by robot controller 16, carry out the mode controlled.
Claims (4)
1. an arc-welding apparatus; it has the mass flow controller by carrying out the output of blanket gas, stopping and flow adjustment from the signal input of outside; and the gas passage possessed for described blanket gas to be supplied to via described mass flow controller welding torch from gas providing source
It is characterized in that possessing:
Gas solenoid valve, it is arranged on the gas passage between described welding torch and described mass flow controller; With
Gas control unit, it carrys out gauge tap action to this gas solenoid valve output solenoid valve switching signal, and exports gas control signal to described mass flow controller,
Described gas control unit is when described blanket gas stops; first described gas solenoid valve is made to carry out pass action; then after have passed through prespecified time delay; the gas from described mass flow controller is made to stop exporting; and when next gas exports beginning; carry out starting work making described gas solenoid valve while, start to export gas from described mass flow controller.
2. arc-welding apparatus according to claim 1, is characterized in that,
In the half-way of the gas passage between described mass flow controller and described gas solenoid valve, possesses the impermeability air chamber for enclosing described blanket gas.
3., according to arc-welding apparatus according to claim 1 or claim 2, it is characterized in that,
Described gas control unit is the robot controller according to pre-made designation data, the mechanical arm carrying described welding torch being carried out to drived control.
4. arc-welding apparatus according to claim 3, is characterized in that,
Described time delay can be set by the teaching machine for being made described designation data.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-057682 | 2010-03-15 | ||
| JP2010057682A JP5558871B2 (en) | 2010-03-15 | 2010-03-15 | Arc welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102189315A CN102189315A (en) | 2011-09-21 |
| CN102189315B true CN102189315B (en) | 2014-12-17 |
Family
ID=44598664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110059208.7A Active CN102189315B (en) | 2010-03-15 | 2011-03-09 | Arc welding device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5558871B2 (en) |
| KR (1) | KR101777174B1 (en) |
| CN (1) | CN102189315B (en) |
| TW (1) | TWI511829B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744500B (en) * | 2012-07-17 | 2015-03-25 | 奇瑞汽车股份有限公司 | Gas shielded welding device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5871373B2 (en) * | 2012-01-12 | 2016-03-01 | 株式会社ダイヘン | Arc welding equipment |
| US9427820B2 (en) * | 2012-10-19 | 2016-08-30 | Hypertherm, Inc. | Thermal torch lead gas delivery methods and related systems and devices |
| CN102909562B (en) * | 2012-10-29 | 2014-09-17 | 宁波奥凯安全科技有限公司 | Automatic argon welding combine for electromagnetic valves |
| KR101505298B1 (en) * | 2013-06-27 | 2015-03-23 | 현대제철 주식회사 | Shielding gas feeding apparatus for welding |
| JP6600812B2 (en) * | 2014-02-04 | 2019-11-06 | パナソニックＩｐマネジメント株式会社 | Arc welding apparatus and arc welding method |
| BR112017000419A2 (en) * | 2014-07-07 | 2018-01-23 | Kuka Robotics Corp | gas distribution and welding systems and workpiece welding process |
| CN104197886B (en) * | 2014-08-18 | 2017-04-05 | 江苏科技大学 | The device and method of arc welding fusion penetration information and welding data collecting synchronizing information |
| CN114535761A (en) * | 2022-04-13 | 2022-05-27 | 广东锐气科技有限公司 | Control method and instrument for intelligently controlling gas consumption of welding seal cavity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000137023A (en) * | 1998-11-02 | 2000-05-16 | Japan Nuclear Fuel Co Ltd<Jnf> | Method and device for measuring purity in inert gas for welding |
| CN1603048A (en) * | 2003-09-30 | 2005-04-06 | 株式会社大亨 | Arc welding apparatus |
| CN1751280A (en) * | 2003-07-16 | 2006-03-22 | 东京毅力科创株式会社 | Semiconductor production system and semiconductor production process |
| JP2008050633A (en) * | 2006-08-22 | 2008-03-06 | Matsushita Electric Ind Co Ltd | Substrate treatment apparatus, substrate treatment method, and method for manufacturing semiconductor device |
| CN101424947A (en) * | 2007-10-30 | 2009-05-06 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Gas path control method and device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62113875U (en) * | 1986-01-06 | 1987-07-20 | ||
| JPH0651225B2 (en) * | 1986-03-07 | 1994-07-06 | 大阪電気株式会社 | Arc welding equipment |
| US5166494A (en) * | 1990-04-24 | 1992-11-24 | Hypertherm, Inc. | Process and apparatus for reducing electrode wear in a plasma arc torch |
| US5609782A (en) * | 1994-10-29 | 1997-03-11 | Hyundai Heavy Industries Co., Ltd. | Shielding gas pre-flow time control system for gas metal arc welder |
| SE9801730L (en) * | 1998-05-15 | 1999-11-16 | Aga Ab | Methods and apparatus for improving the quality of melt welding operations |
| GB9822260D0 (en) * | 1998-10-13 | 1998-12-09 | Boc Group Plc | Improvements in arc welding |
| JP2001259839A (en) * | 2000-03-22 | 2001-09-25 | Matsushita Electric Ind Co Ltd | Arc welding device |
| US6783054B1 (en) * | 2002-05-20 | 2004-08-31 | Clyde W. Pregeant, Jr. | System for controllably conducting welding operations adjacent flammable materials and method of welding adjacent flammable materials |
| JP2006326677A (en) * | 2005-04-25 | 2006-12-07 | Fuji Heavy Ind Ltd | Welding equipment |
| JP2006319207A (en) * | 2005-05-13 | 2006-11-24 | Horiba Stec Co Ltd | Flow rate control device and method, and thin film deposition device |
| TWI348528B (en) * | 2008-01-15 | 2011-09-11 | Ind Tech Res Inst | A protection gas control method for non-sealed process chamber |
-
2010
- 2010-03-15 JP JP2010057682A patent/JP5558871B2/en active Active
-
2011
- 2011-03-02 KR KR1020110018371A patent/KR101777174B1/en active IP Right Grant
- 2011-03-09 CN CN201110059208.7A patent/CN102189315B/en active Active
- 2011-03-10 TW TW100108038A patent/TWI511829B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000137023A (en) * | 1998-11-02 | 2000-05-16 | Japan Nuclear Fuel Co Ltd<Jnf> | Method and device for measuring purity in inert gas for welding |
| CN1751280A (en) * | 2003-07-16 | 2006-03-22 | 东京毅力科创株式会社 | Semiconductor production system and semiconductor production process |
| CN1603048A (en) * | 2003-09-30 | 2005-04-06 | 株式会社大亨 | Arc welding apparatus |
| JP2008050633A (en) * | 2006-08-22 | 2008-03-06 | Matsushita Electric Ind Co Ltd | Substrate treatment apparatus, substrate treatment method, and method for manufacturing semiconductor device |
| CN101424947A (en) * | 2007-10-30 | 2009-05-06 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Gas path control method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744500B (en) * | 2012-07-17 | 2015-03-25 | 奇瑞汽车股份有限公司 | Gas shielded welding device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110103857A (en) | 2011-09-21 |
| KR101777174B1 (en) | 2017-09-11 |
| CN102189315A (en) | 2011-09-21 |
| JP2011189378A (en) | 2011-09-29 |
| TWI511829B (en) | 2015-12-11 |
| TW201139034A (en) | 2011-11-16 |
| JP5558871B2 (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102189315B (en) | Arc welding device | |
| US20160136764A1 (en) | Welding torch with gas flow control | |
| US20160001391A1 (en) | Gas systems, welding systems, and methods of welding | |
| WO2017057400A1 (en) | Gas supply device, gas supply device having mixing function, welding device, and gas supply method | |
| US20030034334A1 (en) | Flow amount adjustment apparatus and processing apparatus | |
| KR20120063843A (en) | Welding robot system having spatter preventing function and control method thereof | |
| US10399173B2 (en) | Laser welding of workpieces by machine | |
| WO2013051178A1 (en) | Welding device | |
| CN102145422B (en) | Electric arc welding method | |
| CN101992335B (en) | Arc-welding method and arc-welding system | |
| JP2006326677A (en) | Welding equipment | |
| JP3822304B2 (en) | Power supply for plasma processing | |
| JP2011156578A (en) | Controller of arc welding robot | |
| JP7162178B2 (en) | ARC WELDING METHOD, ARC WELDING SYSTEM AND WELDING POWER SUPPLY CONTROL DEVICE | |
| JP5473064B2 (en) | Arc welding equipment | |
| JP5511279B2 (en) | Arc start control method for gas shielded arc welding and control apparatus for arc welding robot | |
| JP2005103592A (en) | Arc welding equipment | |
| JP4624020B2 (en) | Welding robot control apparatus and welding robot control method | |
| JP2006021241A5 (en) | ||
| JP3209619U (en) | Welding equipment | |
| KR0116485Y1 (en) | Protective gas preflow time control device for gas metal arc welder | |
| CN113695710A (en) | PLC-based electric arc additive manufacturing device and method | |
| KR20140093112A (en) | Gas arc welder | |
| JP2005279687A5 (en) | ||
| JP2001001143A (en) | Arc welding method with consumable electrode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |