CN102371417B - Arc welding device - Google Patents
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- CN102371417B CN102371417B CN201110193881.XA CN201110193881A CN102371417B CN 102371417 B CN102371417 B CN 102371417B CN 201110193881 A CN201110193881 A CN 201110193881A CN 102371417 B CN102371417 B CN 102371417B
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Abstract
The invention provides an arc welding device capable of matching with a welding wire feeding speed setting signal Fc to switch feeding speed of a welding wire (1). The arc welding device works alternatively and repeatedly to stop the movement of a welding torch (7) in a first period of generating arc (3) between the welding wire fed at a first feeding speed and a to-be-welded piece (2) and to move the welding torch at a certain distance in a second period of generating arc (3) between the welding wire fed at a second feeding speed and the to-be-welded piece (2). In the first period, a welding wire retaining component (26) in a welding wire feeding path switcher (23) is disposed in a line connecting a welding wire inserting inlet (24) and a welding wire inserting outlet (25). Then in the second period, the welding wire inserting inlet (24) moves towards a departing position (B) from the welding wire feeding line. Then in the first period, the welding wire inserting inlet (24) moves towards the welding wire feeding line.
Description
Technical field
The present invention relates to the arc-welding apparatus for carrying out Squitter pulse welding method.
Background technology
Fig. 5 is the pie graph of general arc-welding apparatus.In Figure 5, in the leading section of the manipulator (manipulator) 5 of welding robot 4, welding torch 7 is installed, from welding torch 7 feeding welding wire 1, between the leading section of welding wire 1 and soldered thing 2, produces electric arc 3.The movement locus data Dw of welding torch translational speed setting signal Uw and welding torch 7 is inputted from teaching machine (teach pendant) 8 to robot controller 9.
Wire feed unit 11 is installed on manipulator 5, be fed from eliminating the derivative welding wire 1 of illustrated wire reel by wire feed unit 11, guided by the coil lining be connected in the single-line type power cable 6 between wire feed unit 11 and welding torch 7, thus be fed into welding torch 7.
The source of welding current 10 possesses current control unit 12 and welding wire feeding control unit 13, and these unit have telecommunication circuit respectively between robot controller 9.Current control unit 12 such as has the inverter control circuit be made up of multiple transistor unit.This inverter control circuit carries out welding current waveform control to the source power supply inputted from outside.Current control unit 12, via the power supply chip of front end being located at welding torch 7, applies weldingvoltage Vw, flows through welding current Iw between welding wire 1 and soldered thing 2.
Welding wire feeding control unit 13 is the circuit welding wire feeding rate setting signal Fc being used for the feeding carrying out welding wire 1 being exported to the feed motor of wire feed unit 11.Welding wire feeding rate setting signal Fc is to giving feed speed Ws to provide the signal of the instruction of welding wire 1.
Robot controller 9 possesses the drive circuit 14 with microcomputer and the memory circuit 15 being connected to drive circuit 14.In memory circuit 15, store the operation procedure of the various actions setting welding robot 4.Robot controller 9 can communicate with welding robot 4, the source of welding current 10 and teaching machine 8.Drive circuit 14 sets the translational speed of welding robot 4.Robot controller 9 gives welding robot 4 action control signal Mc.By this action control signal Mc, each motor rotary actuation, makes welding torch 7 move to the welding start position of soldered thing 2.And then drive circuit 14 gives the source of welding current 10 source of welding current and exports control signal Pc.
[prior art 1]
In the Squitter pulse welding method of prior art 1, at robot controller 9, interrupted welding unit is set, this interrupted welding unit carries out the movement of the welding torch 7 of the leading section of the manipulator 5 being installed on welding robot 4 intermittently, under the state making welding torch 7 stop, producing the electric arc 3 of predetermined time, thus make the melting of soldered thing 2.Then, after its setting-up time, electric arc 3 is stopped, and makes welding torch 7 move to the electric arc starting point again of fusing department outer circumferential side.Then, under the state making welding torch 7 stop, again producing the electric arc of predetermined time, thus make the melting of soldered thing 2.(for example, referring to patent document 1).
In the welding method of above-mentioned prior art 1, the bead of the squamous of the TIG welding that matches in excellence or beauty can be formed, but owing to repeatedly producing electric arc 3 intermittently, therefore exist whenever generation electric arc 3, just can produce the problem of a large amount of splashings (spatter).
[prior art 2]
Therefore, propose stop welding torch 7 periodically give action, at a high speed to carry out feeding welding wire 1 in the stopping of giving action, in the execution of giving action, carry out the arc-welding method of the prior art 2 of feeding welding wire 1 with low speed.This arc-welding method carries out AC welding in the stopping of giving action, carries out direct current welding (for example, referring to patent document 2) of reversed polarity in the execution of giving action.
The arc-welding method of prior art 2 is described referring to Fig. 6.Fig. 6 is the sequential chart of the arc-welding method for illustration of prior art 2.Fig. 6 (A) represents the time process of the translational speed of welding torch 7, and Fig. 6 (B) represents the time process of welding wire feeding rate setting signal Fc, and Fig. 6 (C) represents that the time of welding current Iw passes through.Moment t1 shown in Fig. 6, as shown in Fig. 6 (A), make the mobile of welding torch 7 stop, as shown in Fig. 6 (B), welding wire feeding rate setting signal Fc is switched to predetermined welding wire high speed setting signal Wsh, as shown in Fig. 6 (C), as welding current Iw, the pulse current of circulation constant current characteristic.As this pulse current, using DC pulse current when welding iron, using alternating pulsing current when welding of aluminum.During this, between the leading section of welding wire 1 and soldered thing 2, produce electric arc 3 carry out melting welding wire 1, thus carry out a pulse one weldering drip transfer to form molten bath.
Then, at moment t2, as shown in Fig. 6 (A), the movement of welding torch 7 is started by welding robot 4, as shown in Fig. 6 (B), welding wire feeding rate setting signal Fc is switched to predetermined welding wire low velocity setting signal Wsl, as shown in Fig. 6 (C), as welding current Iw, the DC current of circulation constant current characteristic.During this period, also between the leading section of welding wire 1 and soldered thing 2, produce electric arc 3, and do not stop electric arc 3.In the meantime, carry out the cooling of weld part, weldering is simultaneously dripped and is grown up.Before the weldering of this growth is dripped and just will be contacted with soldered thing 2, departed from from the front end of welding wire 1 by the pulse current ahead produced at moment t3 thus be passed to soldered thing 2.Therefore, weldering is dripped transfer and is only carried out at the circulation period of pulse current, owing to being carry out non-contacting injection transfer, does not therefore produce splashing, in addition, owing to not needing to produce electric arc again, therefore, can suppress the generation of splashing, can form the squamous bead of the TIG welding that matches in excellence or beauty.
[patent document 1] Unexamined Patent 6-55268 publication
[patent document 2] Unexamined Patent 11-267839 publication
Then, the problem of the arc-welding method of above-mentioned prior art 2 is described with reference to Fig. 7.Fig. 7 is the sequential chart of the arc-welding method for illustration of prior art 2, Fig. 7 (A) represents that the time of the translational speed of welding torch 7 passes through, Fig. 7 (B) represents that the time of welding wire feeding rate setting signal Fc passes through, Fig. 7 (C) represents the time process of the feed speed of welding wire 1, and Fig. 7 (D) represents that the time of welding current Iw passes through.
At the moment t1 of Fig. 7, as shown in Fig. 7 (D), when the command signal of welding current Iw switches to pulse current from DC current, actual welding current Iw is instantaneous is switched to pulse current from DC current.On the other hand, as shown in Fig. 7 (B), although the welding wire feeding rate setting signal Fc being input to wire feed unit 11 is switched to welding wire high speed setting signal Wsh from welding wire low velocity setting signal Wsl, but as shown in Fig. 7 (C), when welding wire feeding rate setting signal Fc is switched to welding wire high speed setting signal Wsh from welding wire low velocity setting signal Wsl, due to the feed motor of wire feed unit 11, the inertia of feed rolls, actual welding wire feeding speed arrives high speed with time delay.
In addition, when welding wire feeding rate setting signal Fc is switched to welding wire high speed setting signal Wsh from welding wire low velocity setting signal Wsl, welding wire 1 be fed roller eject time, because the gap between the outer peripheral face of the welding wire 1 in coil lining and the inner peripheral surface of coil lining bends, actual welding wire feeding speed arrives high speed and can postpone.Therefore, actual welding wire feeding speed arrives high speed at moment t2.Therefore, between moment t1 to t2, because the feed speed of welding wire 1 is slower than the suitable feed speed corresponding with welding current Iw, therefore, the front end of welding wire 1 is lighted due to electric arc 3, thus arc length is elongated, sometimes cannot form suitable bead.
Then, the moment t3 shown in Fig. 7, as shown in Fig. 7 (D), when the command signal of welding current Iw is switched to DC current from pulse current, actual welding current Iw moment is switched to DC current from pulse current.On the other hand, as shown in Figure 7 B, the welding wire feeding rate setting signal Fc inputing to wire feed unit 11 is switched to welding wire low velocity setting value Wsl from welding wire high speed setting value Wch, but as shown in Fig. 7 (C), when welding wire feeding speed is switched to low velocity from high speed, due to the feed motor of wire feed unit 11, the inertia of feed rolls, actual welding wire feeding speed arrives low velocity with time delay.Therefore, actual welding wire feeding speed arrives low velocity at moment t4.Therefore, because the feed speed of welding wire 1 is the feed speed faster than the suitable feed speed corresponding with welding current Iw between moment t3 to t4, therefore, when switching to DC current, producing short circuit thus producing and splashing, sometimes can not obtain suitable bead.
Summary of the invention
The object of the present invention is to provide a kind of arc-welding apparatus, for welding by the interrupting pulse switching the welding wire feeding speed of the welding wire 1 sent from welding torch 7 corresponding to welding wire feeding rate setting signal Fc.
In order to solve above-mentioned problem, the invention of form 1 is a kind of arc-welding apparatus, is characterised in that and possesses: welding robot, welding torch, it is installed on the leading section of the manipulator of this welding robot, and wire feed unit, it is installed on the upper arm of described manipulator, during described arc-welding apparatus alternate repetition the 1st and during the 2nd, wherein, in during the 1st, any one of multiple stop positions of the moving interval be instructed at interval, described welding torch is stopped, by described wire feed unit with the 1st feed speed to the 1st electric current that circulates between the welding wire of described welding torch feeding and soldered thing, thus produce electric arc, form molten bath thus, in during 2nd, described welding torch is made to move described moving interval to the described stop position of the next one, by described wire feed unit with 2nd feed speed slower than described 1st feed speed between the described welding wire of described welding torch feeding and described soldered thing, circulate 2nd electric current less than described 1st electric current, thus produce described electric arc, and do not carry out a weldering transfer, wherein, described arc-welding apparatus possesses welding wire feeding route diversion machine, these welding wire feeding route diversion facility have: welding wire insert port, and it inserts described welding wire, welding wire inserts outlet, and it inserts out described welding wire, welding wire holding member, it keeps the described welding wire inserted from described welding wire insert port, with welding wire holding member mobile unit, it during the described 1st, make this welding wire holding member be positioned at the described welding wire insert port of link and described welding wire is inserted on the welding wire feeding straight line of outlet, afterwards, when arriving during the described 2nd, described welding wire holding member is moved to the position of leaving that have left predetermined distance from described welding wire feeding straight line, afterwards, when arriving during the described 1st, described welding wire holding member is moved from described position of leaving to described welding wire feeding straight line, this welding wire feeding route diversion machine is arranged between described wire feed unit and described welding torch.
(invention effect)
Arc-welding apparatus of the present invention, when carrying out interrupting pulse welding, correspondingly with welding wire feeding rate setting signal can suitably switch welding wire feeding speed.Therefore, during from the 2nd namely cooling period to the 1st during when namely weldering switches during dripping transfer, there will not be the front end of welding wire to light due to electric arc, thus arc length is elongated, when switching to cooling period during dripping transfer from weldering, can not short circuit be produced thus produce and splash.Therefore, it is possible to form the bead of the squamous of the suitable TIG welding that matches in excellence or beauty.
Accompanying drawing explanation
Fig. 1 is the figure representing arc-welding apparatus of the present invention.
Fig. 2 is the figure of the 1st embodiment of the welding wire feeding route diversion machine representing arc-welding apparatus of the present invention.
Fig. 3 is the sequential chart of the action for illustration of arc-welding apparatus of the present invention.
Fig. 4 is the figure of the 2nd embodiment of the welding wire feeding route diversion machine representing arc-welding apparatus of the present invention.
Fig. 5 is the pie graph of general arc-welding apparatus.
Fig. 6 is the sequential chart of the arc-welding method for illustration of prior art 2.
Fig. 7 is the sequential chart of the arc-welding method for illustration of prior art 2.
The explanation of symbol
1 welding wire
2 soldered things
3 electric arcs
4 welding robots
5 manipulators
6 single-line type power cables
7 welding torches
8 teaching machines
9 robot controllers
10 sources of welding current
11 wire feed units
12 current control units
13 welding wire feeding control units
14 drive circuits
15 memory circuits
21 underarms
22 upper arm
23 welding wire feeding route diversion machines
24 welding wire insert ports
25 welding wires insert outlet
26 welding wire holding members
27 adjustment motor
28 driven wheels
28 adjustment motor
29 reductors
30 carriage release levers
The base end part of 30a carriage release lever
The leading section of 30b carriage release lever
31 revolution detectors
32 adjustment motor speed setting apparatus
33 adjustment motor rotate instruction circuit
41 welding wire feeding route diversion machines
42 linear guides
43 guide rails
44 slide units
45 plates (plate)
The leading section of 45a plate
The side end of 45b plate
46 tooth bars
47 coil linings
48 adjustment motor control units
B leaves position
Dw movement locus data
Fc welding wire feeding rate setting signal
Iw welding current
L welding wire feeding straight line
The length in L1, L2 welding wire feeding path
Mc action control signal
The Pc source of welding current exports control signal
Uw welding torch translational speed setting signal
Vw weldingvoltage
Ws feed speed
Wsh welding wire high speed setting signal
Wsl welding wire low velocity setting signal
Detailed description of the invention
With reference to accompanying drawing, working of an invention mode is described according to embodiment.Fig. 1 is the figure representing arc-welding apparatus of the present invention.In FIG, in the leading section of the manipulator 5 of welding robot 4, welding torch 7 is installed, at the upper arm 22 of leading section of the underarm 21 being located at manipulator 5, wire feed unit 11 is installed, between wire feed unit 11 and welding torch 7, is provided with welding wire feeding route diversion machine 23.This welding wire feeding route diversion machine 23 is installed in any one of wire feed unit 11 or welding torch 7 by flange (flange).About other function, give identical symbol to the function identical with the arc-welding apparatus shown in Fig. 5 and omit the description.
Then, the 1st embodiment of welding wire feeding route diversion machine 23 is described with reference to Fig. 2.Fig. 2 is the figure of the 1st embodiment of the welding wire feeding route diversion machine representing arc-welding apparatus of the present invention.In fig. 2, by coil lining 47, directed welding wire 1 is inserted into the welding wire insert port 24 of welding wire feeding route diversion machine 23, and welding wire 1 is inserted outlet 25 from welding wire and inserted out coil lining 47.Welding wire holding member 26 has annular, and welding wire 1 is inserted in this ring.This welding wire holding member 26 also not necessarily is annular, as long as can insert the shape of welding wire 1, then also can be rectangle.At the output shaft of adjustment motor 27, driven wheel 28 is installed, thus reductor 29 is engaged with this gear 28.By flange, the base end part 30a of carriage release lever is installed on this reductor 29.In addition, welding wire holding member 26 is installed on the leading section 30b of carriage release lever.
This welding wire holding member 26 interrupting pulse weld the 1st during namely weldering drip transfer during in, be positioned at and link welding wire insert port 24 and welding wire is inserted on the welding wire feeding straight line L of outlet 25, afterwards, when being cooling period during arrival the 2nd, welding wire holding member 26 moves from welding wire feeding straight line L to the position B that leaves leaving predetermined distance, afterwards, time during again arriving weldering and dripping transfer, welding wire holding member is mobile to welding wire feeding straight line L from leaving position.The revolution detector 31 be made up of encoder installed by adjustment motor 27, and the output valve of this revolution detector 31 is inputed to the source of welding current 10.
Be located at the rotating speed of the adjustment motor speed setting apparatus 32 setting adjustment motor 27 in the adjustment motor control unit 48 of the source of welding current 10, this rotating speed and the position making welding wire holding member 26 on welding wire feeding straight line L and to leave the displacement of movement between the B of position corresponding.Adjustment motor rotate instruction circuit 33 input from revolution detector 31 output valve and carry out the output valve of self-adjusting motor speed setting apparatus 32, thus when being transfused to adjustment motor drive signal, until arrive the setting value of adjustment motor speed setting apparatus 32, adjustment motor 27 is rotated to forward direction or reverse directions.Thus, the feeding path of the welding wire 1 in welding wire feeding route diversion machine 23 is when welding wire holding member 26 is positioned at the position on welding wire feeding straight line L, become the straight line linking A point and C point, welding wire holding member be positioned at leave position B time, become from A point via the curve of B point to C point.Leave position by adjustment welding wire holding member 26, the feeding path of the welding wire 1 in this welding wire feeding route diversion machine 23 can be made to change.
The position of leaving of welding wire holding member 26 inserts distance between outlet 25 by the feed speed of the material of welding wire 1 and diameter, welding wire 1, welding current, the welding condition of weldingvoltage and the welding wire insert port 24 of welding wire feeding route diversion machine 23 and welding wire and predetermined.Be changed to arc-shaped by making the feeding path of the welding wire 1 in welding wire feeding route diversion machine 23 from linearity or change on the contrary, the situation of the change delay of the welding wire feeding speed of the welding wire 1 sent from wire feed unit 11 can be offset.
To the protective gas of welding torch and providing of electric power, from eliminating illustrated pipe-line to provide.
Below, action is described.Fig. 3 is the sequential chart of the action for illustration of arc-welding apparatus of the present invention, Fig. 3 (A) represents that the time of the translational speed of welding torch 7 passes through, Fig. 3 (B) represents that the time of welding wire feeding rate signal Fc passes through, Fig. 3 (C) represents that the time of the feed speed of the welding wire 1 sent from wire feed unit 11 passes through, Fig. 3 (D) represents that the time of the length in the feeding path of the welding wire 1 in welding wire feeding route diversion machine 23 passes through, Fig. 3 (E) represents that the time of the feed speed of the welding wire 1 sent from welding torch 7 passes through, Fig. 3 (F) represents that the time of welding current Iw passes through.
In the t1 moment of Fig. 3, as shown in Fig. 3 (A), any one of multiple stop positions of the moving interval be instructed at interval, the mobile of welding torch 7 stops, as shown in Fig. 3 (F), by the current control unit 12 in the source of welding current 10, welding current Iw moment switches to pulse current from DC current, transfer is dripped, during namely transfer is dripped in weldering during starting the 1st by producing electric arc 3 thus carry out weldering between welding wire 1 and soldered thing 2.As shown in Fig. 3 (B), the welding wire feeding rate setting signal Fc inputing to wire feed unit 11 is switched to welding wire high speed setting value Wsh from welding wire low velocity setting value Wsl, but as shown in figure (C), from the feed speed of the welding wire 1 that wire feed unit 11 is sent, due to the feed motor of wire feed unit 11, the inertia of feed rolls, from low velocity with time delay moment t2 arrive high speed.
At moment t1, in adjustment motor control unit 48 in the source of welding current 10, adjustment motor start-up signal is imported into adjustment motor rotate instruction circuit 33, and the direction that adjustment motor 27 is rotated towards a direction to carriage release lever 30 with the rotating speed set by adjustment motor speed setting apparatus 32 rotates.Its result, the driven wheel 28 linked with adjustment motor 27 rotates, and via reductor 29, carriage release lever 30 is rotated.Thus, welding wire holding member 26 is from until the position B that leaves residing for moment t1 position moves to the position welding wire feeding straight line L, thus from moment t1 to moment t2, as shown in Fig. 3 (D), the length in the feeding path of the welding wire 1 in welding wire feeding route diversion machine 23 changes from longer L2 to shorter L1.Now, because the rearward end of welding wire 1 is clamped by the feed rolls of wire feed unit 11 and backer roll, therefore welding wire 1 is ejected the length of the difference of L2 and L1 to welding torch 7 direction.Its result, the delay that the change of the welding wire feeding speed of the welding wire 1 sent from wire feed unit 11 occurs is cancelled, as shown in Fig. 3 (E), from feed speed high speed change from welding wire low velocity to welding wire instantaneously at moment t1 of the welding wire 1 that welding torch 7 is sent.
At moment t3, as shown in Fig. 3 (A), start to the mobile of next stop position for welding torch 7 being moved moving interval, as shown in Fig. 3 (F), by the current control unit 12 in the source of welding current 10, welding current Iw moment switches from pulse current to DC current, produces electric arc 3 between welding wire 1 and soldered thing 2, cool the molten bath be formed on soldered thing 2, be cooling period during starting the 2nd simultaneously.Now, as shown in Fig. 3 (B), the welding wire feeding rate setting signal Fc inputing to wire feed unit 11 switches to welding wire low velocity setting value Wsl from welding wire high speed setting value Wsh, but as shown in Fig. 3 (C), from the feed speed of the welding wire 1 that wire feed unit 11 is sent, due to the feed motor of wire feed unit 11, the inertia of feed rolls, and from high speed with time delay moment t4 arrive low velocity.
At this moment t3, in the source of welding current 10, adjustment motor start-up signal is imported into adjustment motor rotate instruction circuit 33, thus adjustment motor 27 is rotated to the direction making carriage release lever 30 rotate towards b direction with the rotating speed set by adjustment motor speed setting apparatus 32.Its result, the driven wheel 28 linked with adjustment motor 27 rotates, thus by reductor, carriage release lever 30 is moved.Thus, welding wire holding member 26 is from until the position the residing welding wire feeding straight line L of moment t3 is moved to leaving position B, thus, from moment t3 to moment t4, as shown in Fig. 3 (D), the length in the feeding path of the welding wire 1 in welding wire feeding route diversion machine 23 changes from shorter L1 to longer L2.Now, because the rearward end of welding wire 1 is clamped by the feed rolls of wire feed unit 11 and backer roll, therefore, the welding wire 1 of welding torch 7 side is pulled the length of the difference of L2 and L1.Its result, the delay of the change of the welding wire feeding speed of the welding wire 1 sent from wire feed unit 11 is cancelled, thus as shown in Fig. 3 (E), and the feed speed of the welding wire 1 sent from welding torch 7 changed to low velocity from high speed in moment t3 moment.During transfer is dripped in cooling period and weldering repeatedly afterwards.
Its result, arc-welding apparatus of the present invention, when carrying out interrupting pulse welding, correspondingly with welding wire feeding rate setting signal Fc can suitably switch welding wire feeding speed.Therefore, from cooling period to weldering drip transfer during switch time, there will not be the front end of welding wire 1 to light due to electric arc 3, thus arc length is elongated, from weldering drip transfer during switches to cooling period time, can not short circuit be produced thus produce splashing.Therefore, the bead of the squamous of the suitable TIG welding that matches in excellence or beauty is formed.
Although as the 1st embodiment of above-mentioned welding wire feeding route diversion machine, describe and the corresponding situations setting the rotating speed adjusting motor 27 such as welding condition.But replacing such means, also can be as under type: make the rotating speed of adjustment motor 27 fix, be fixed on the axle of reductor 29 with the base end part 30a of clamping member by carriage release lever, and be screwed.Then, corresponding to welding condition etc., by the distance of the place being fixed on clamping member to the 30b of leading section of adjustment from carriage release lever 30, make the feeding path change of the welding wire 1 in welding wire feeding route diversion machine 23.
Fig. 4 is the figure of the 2nd embodiment of the welding wire feeding route diversion machine representing arc-welding apparatus of the present invention.In the diagram, the guide rail 43 of the linear guides 42 in welding wire feeding route diversion machine 41 is fixed on the body of welding wire feeding route diversion machine 41.The slide unit 44 of linear guides 42 is fixed on plate (plate) 45, and welding wire holding member 26 is installed in the leading section 45a of plate, and tooth bar (rack) 46 is fixed in the side end 45b of plate.Reductor 29 is engaged on this tooth bar 46.The slide unit 44 of linear guides 42 freely can move along guide rail 43.Therefore, if reductor 29 rotates, tooth bar 46 moves, thus the plate 45 being fixed on tooth bar 46 also moves.Now, because the slide unit 44 of the linear guides 42 being fixed on plate 45 moves along guide rail 43, therefore, plate 45 moves point-blank.Thus, by tooth bar 46 and reductor 29, the rotational motion of reductor 29 is transformed to the rectilinear motion of tooth bar 46.
2nd embodiment of welding wire feeding route diversion machine, in the same manner as the 1st embodiment of above-mentioned welding wire feeding route diversion machine, makes welding wire holding member 26 on welding wire feeding straight line L and leaves between the B of position to move.Be provided with the action of the arc-welding apparatus of the present invention of the 2nd embodiment of welding wire feeding route diversion machine and effect identical with the action of arc-welding apparatus of the present invention of the 1st embodiment and effect being provided with above-mentioned welding wire feeding route diversion machine, therefore omit the description.
Although the 2nd embodiment of the welding wire feeding route diversion machine as the arc-welding apparatus of the invention described above, describe and the corresponding rotating speeds adjusting motor 27 that set such as welding condition, but also can replace the method, detect the position of welding wire holding member 26 thus the action of control welding wire holding member 26 by limit switch (limit switch).
Namely, 2 limit switches contacted with bottom with the upper end of welding wire holding member 26 are respectively set respectively, thus when welding wire holding member 26 is positioned at the position on welding wire feeding straight line L, detected the position of welding wire holding member 26 by the limit switch contacted with the bottom of welding wire holding member 26.Further, welding wire holding member 26 be positioned at leave position B time, detected the position of welding wire holding member 26 by the limit switch contacted with the upper end of welding wire holding member 26.If so make adjustment motor 27 rotate, then detect the position of welding wire holding member 26 by limit switch thus the action of holding member 26 can be controlled.The length variations in the feeding path of the welding wire 1 in welding wire feeding route diversion machine is made by adjusting the position of limit switch that contacts with the upper end of welding wire holding member 26.
In addition, compared with by flange, welding wire feeding route diversion machine 23 or 41 is installed on wire feed unit 11, by utilizing flange, welding wire feeding route diversion machine 23 or 41 is installed on welding torch 7, the welding wire 1 sent from welding wire feeding route diversion machine 23 or 41 is bending less the gap of the outer peripheral face of welding wire 1 and the inner peripheral surface of coil lining, therefore, the response for the welding wire feeding speed of the reality of welding wire feeding rate setting signal Fc uprises further.
Claims (1)
1. an arc-welding apparatus, it comprises:
Welding robot;
Welding torch, it is installed on the leading section of the manipulator of this welding robot; And
Wire feed unit, it is installed on the upper arm of described manipulator,
And during alternate repetition the 1st and during the 2nd, in during the described 1st, arbitrary place of multiple stop positions of the moving interval be instructed at interval, described welding torch is stopped, by described wire feed unit with the 1st feed speed to the 1st electric current that circulates between the welding wire of described welding torch feeding and soldered thing, thus generation electric arc, form molten bath thus; During the described 2nd, described welding torch is made to move described moving interval to the described stop position of the next one, by described wire feed unit with 2nd feed speed slower than described 1st feed speed between the described welding wire of described welding torch feeding and described soldered thing, circulate 2nd electric current less than described 1st electric current, thus produce described electric arc, and do not carry out a weldering transfer; It is characterized in that,
Described arc-welding apparatus has welding wire feeding route diversion machine, and described welding wire feeding route diversion machine comprises:
Welding wire insert port, it inserts described welding wire;
Welding wire inserts outlet, and it inserts out described welding wire;
Welding wire holding member, it keeps the described welding wire inserted from described welding wire insert port; And
Welding wire holding member mobile unit, it during the described 1st, make this welding wire holding member be positioned at the described welding wire insert port of link and described welding wire is inserted on the welding wire feeding straight line of outlet, afterwards, when arriving during the described 2nd, described welding wire holding member is moved, afterwards, when arriving during the described 1st to the position of leaving that have left predetermined distance from described welding wire feeding straight line, described welding wire holding member is moved from described position of leaving to described welding wire feeding straight line
Describedly leave the change delay that position is set to the welding wire feeding speed offsetting the described welding wire sent from described wire feed unit,
And this welding wire feeding route diversion machine is arranged between described wire feed unit and described welding torch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-176050 | 2010-08-05 | ||
| JP2010176050A JP2012035284A (en) | 2010-08-05 | 2010-08-05 | Arc welding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102371417A CN102371417A (en) | 2012-03-14 |
| CN102371417B true CN102371417B (en) | 2015-06-03 |
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| CN201110193881.XA Active CN102371417B (en) | 2010-08-05 | 2011-07-12 | Arc welding device |
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| CN (1) | CN102371417B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017155041A1 (en) | 2016-03-11 | 2017-09-14 | 株式会社ダイヘン | Arc welding system and wire-feeding device |
| JP6378302B2 (en) | 2016-12-22 | 2018-08-22 | ファナック株式会社 | Welding wire processing structure of arc welding robot |
| CN110238554B (en) * | 2019-07-03 | 2021-08-20 | 威海鑫瑞焊接设备有限公司 | Welding gun head with auxiliary function for steam turbine welding equipment |
| JP2022107353A (en) * | 2021-01-08 | 2022-07-21 | 株式会社ダイヘン | Welding robot |
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| JPH11267839A (en) * | 1998-03-18 | 1999-10-05 | Yaskawa Electric Corp | Arc welding method |
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| CN1328495A (en) * | 1998-10-16 | 2001-12-26 | 弗罗纽斯焊接机械制造两合公司 | Regulating device for welding apparatus |
| JP2007518568A (en) * | 2004-01-26 | 2007-07-12 | フロニウス・インテルナツィオナール・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Welding wire storage device |
| CN101151118A (en) * | 2006-02-17 | 2008-03-26 | 松下电器产业株式会社 | Method of controlling arc welding and welding device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2917215B2 (en) * | 1997-10-28 | 1999-07-12 | 株式会社日立製作所 | Welding robot controller |
| JP4796881B2 (en) * | 2006-03-31 | 2011-10-19 | 株式会社ダイヘン | Welding robot system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751856A (en) * | 1993-08-19 | 1995-02-28 | Kobe Steel Ltd | Consumable electrode type arc welding controller |
| JPH11267839A (en) * | 1998-03-18 | 1999-10-05 | Yaskawa Electric Corp | Arc welding method |
| CN1328495A (en) * | 1998-10-16 | 2001-12-26 | 弗罗纽斯焊接机械制造两合公司 | Regulating device for welding apparatus |
| JP2001212671A (en) * | 2000-01-31 | 2001-08-07 | Matsushita Electric Ind Co Ltd | Automatic welding machine |
| JP2007518568A (en) * | 2004-01-26 | 2007-07-12 | フロニウス・インテルナツィオナール・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Welding wire storage device |
| CN101151118A (en) * | 2006-02-17 | 2008-03-26 | 松下电器产业株式会社 | Method of controlling arc welding and welding device |
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| JP2012035284A (en) | 2012-02-23 |
| CN102371417A (en) | 2012-03-14 |
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