Summary of the invention
The present invention has designed a kind of robot intermediate frequency resistance welded switch board, there is no a special and intermediate frequency resistance welded switch board that robot welding is used in conjunction with on the present market of technical problem of its solution.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of robot intermediate frequency resistance welded switch board, it is characterized in that: switch board inside is provided with welding controller (1), 1000HZ induction coil (2), main power source breaker (3) and 1000HZ monitor (4), welding controller (1) is provided with the welding controller main power source secondary end (5) for welding gun welding transformer main power source, is provided with ground connection bronze medal (6) in switch board cabinet; On the cabinet door of switch board front, be provided with alarm lamp (7), main power source rotary handle of circuit breaker (8), RS232 PORT COM (10), flat recess band key door lock (11) and rotary handle door lock (12), main power source rotary handle of circuit breaker (8) is controlled main power source breaker (3); Be provided with cable fixed support (15) in middle, the switch board back side, the switch board back side is positioned at cable fixed support (15) below and is provided with welding controller dissipating cover (17), and the switch board back side is positioned at cable fixed support (15) top and is provided with welding gun signal cable socket (14), cable integrator (13), outside 24VDC power supply cable-through hole (20), safety return circuit emergent stop signal cable-through hole (19), locking cable-through hole for subsequent use (16) and the welding gun feed cable introduced and locked coil (18); Also connect suspension ring (9) at switch board end face.
Further, mains power cable was locked coil (11) by mains power cable and was entered switch board, cable outer layer sheath strip off 4 is divided into L1, L2, L3 and tetra-strands of wires of PE, four strands of wires, respectively by V-type insulating sleeve on annular cold pressure lines ose bag, are received mains power cable L1, L2, L3 wire respectively on the terminal of main circuit breaker upper end and after compressing and are installed insulated terminal cover; PE wire is received on cabinet inner top ground connection bronze medal (6).
Further, welding gun feed cable one end connects welding gun, the welding gun feed cable other end was locked coil (18) by welding gun feed cable and was entered switch board, welding gun feed cable is by outer protective sleeve strip off U, V and tri-strands of wires of PE, three strands of wires compress and put V-type insulating sleeve by pin type cold pressure lines nose, welding gun feed cable U1, V1 wire are received to U1, the V1 of welding controller main power source secondary end (5) terminal-X4 end upper and compress, welding gun feed cable PE line is received the PE that welding controller main power source secondary end (5) terminal-X4 holds and is gone up and compress.
Further, 1000HZ monitor (4) comprises current monitor; Current transformer; Current monitor summation current transformer forms a residual current protective unit; Auxiliary reclay, it plays control on-off action in the time that welding gun temperature changes; X1 terminal, is connected to welding gun socket by this terminal by the KSR on controller, UIR signal; XP terminal, draws 24VDC power supply by this terminal; F1 breaker, it is for the control of conventional 24V on/off, F2 breaker, and it is for the control of safe 24V on/off; V2 terminal, there is action in relay and welding gun signal intensity can be sent to outside and V1 terminal by this terminal, accesses 24V power supply from outside by this terminal.
This robot intermediate frequency resistance welded switch board has following beneficial effect:
Robot welding switch board of the present invention, can well be applied to robot welding, not only can monitor by welding quality, also have extensibility, the multiple communication modes of stable welding technological properties and function, can be good at tackling various resistance spot welding machine people.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 7, the present invention will be further described:
As shown in Figure 1, a kind of robot intermediate frequency resistance welded switch board, switch board inside is provided with welding controller 1,1000HZ induction coil 2, main power source breaker 3 and 1000HZ monitor 4, welding controller 1 is provided with the welding controller main power source secondary end 5 for welding gun welding transformer main power source, is provided with ground connection bronze medal 6 in switch board cabinet; On the cabinet door of switch board front, be provided with alarm lamp 7, main power source rotary handle of circuit breaker 8, RS232 PORT COM 10, flat recess band key door lock 11 and rotary handle door lock 12, main power source rotary handle of circuit breaker 8 is controlled main power source breaker 3; Be provided with cable fixed support 15 in middle, the switch board back side, the switch board back side is positioned at cable fixed support 15 belows and is provided with welding controller dissipating cover 17, and the switch board back side is positioned at cable fixed support 15 tops and is provided with welding gun signal cable socket 14, cable integrator 13, the outside 24VDC of introducing power supply cable-through hole 20, safety return circuit emergent stop signal cable-through hole 19, locking cable-through hole 16 for subsequent use and welding gun feed cable and locked coil 18; Also connect suspension ring 9 at switch board end face.
Mains power cable was locked coil 11 by mains power cable and was entered switch board, cable outer layer sheath strip off 4 is divided into L1, L2, L3 and tetra-strands of wires of PE, four strands of wires, respectively by V-type insulating sleeve on annular cold pressure lines ose bag, are received mains power cable L1, L2, L3 wire respectively on the terminal of main circuit breaker upper end and after compressing and are installed insulated terminal cover; PE wire is received on cabinet inner top ground connection bronze medal 6.
Welding gun feed cable one end connects welding gun, the welding gun feed cable other end was locked coil 10 by welding gun feed cable and was entered switch board, welding gun feed cable is by outer protective sleeve strip off U, V and tri-strands of wires of PE, three strands of wires compress and put V-type insulating sleeve by pin type cold pressure lines nose, welding gun feed cable U1, V1 wire are received to U1, the V1 of welding controller main power source secondary end 5 terminals-X4 end upper and compress, welding gun feed cable PE line is received the PE that welding controller main power source secondary end 5 terminals-X4 holds and is gone up and compress.
1000HZ monitor 4 comprises current monitor; Current transformer; Current monitor summation current transformer forms a residual current protective unit; Auxiliary reclay, it plays control on-off action in the time that welding gun temperature changes; X1 terminal, is connected to welding gun socket by this terminal by the KSR on controller, UIR signal; XP terminal, draws 24VDC power supply by this terminal; F1 breaker, it is for the control of conventional 24V on/off, F2 breaker, and it is for the control of safe 24V on/off; V2 terminal, there is action in relay and welding gun signal intensity can be sent to outside and V1 terminal by this terminal, accesses 24V power supply from outside by this terminal.
The explanation of switch board technical parameter:
Controller model: PSI 63C0.777L1
Power requirement: 3P+PE (TN system, TN system)
Input voltage: 400 V 20% to 480 V+10% 50/60 Hz
Output voltage: 500V ± 3% 1000Hz ± 3%
Maximum heat continuous current: 110A
Maximum output current: 800A
No-load power: 110W ± 10%
Applied environment temperature :+5 DEG C~+ 45 DEG C
Switch board detection of electrical leakage scope: 0~300mA within the scope of 0~2000Hz
Welding transformer range of application: electric resistance welding, projection welding, mixed weldering etc.
Welding switch board main feature:
1, UIR adaptation function, provides visual adjustment interface, when welding debugging, can set up corresponding permanent power sample curve according to the sheet material of combination;
2, welding gun electrode hypervisor, has electrode tally function, can realize electrode dressing or change request instruction;
3, can expand the more than 4 kinds communication modes of Profibus, Ethernet, Interbus, Devicenet.
As shown in Figure 7, a kind of spot-welding welding tongs, the welding gun that spot-welding welding tongs is connected with above-mentioned robot intermediate frequency resistance welded switch board is used in conjunction with, and it comprises the second horn 31, electrode cap 32, the first horn 33, two welding tong arms 34, joystick 35, cylinder 36 and hanger for soldering pliers 37.Between two welding tong arms 34, be connected with cylinder 36, joystick 35 is for the unlatching of control cylinder 36.Two common links of welding tong arm 34 are provided with the first horn 33, and electrode cap 32 is positioned on the first horn 33.The second horn 31 is also connected on two welding tong arm 34 common connection ends, and the spacing stopper 38 of fixture limits scope and the stroke that the second horn 31 moves.
The operation principle of this spot-welding welding tongs is: while work by joystick 35 control cylinders 36, cylinder 36 is given two welding tong arm 34 pressure, two welding tong arms 34 are given the first horn 33 tension force under the effect of pressure, the second horn 31 contacts fixture upper limit stopper 38 under the effect of tension force, spacing stopper 38 produces reaction force by the second horn 31 to the first horn 33, electrode cap 32 on the first horn 33 is under the effect of the second horn 31 reaction forces, make electrode cap 32 have pressure, and further contact and complete high-quality welding with sheet metal component.
As illustrated in Figures 5 and 6, the present invention also comprises non-welding region protection mechanism, and in this non-welding region protection mechanism and the present invention, welding gun is used in conjunction with.This non-welding region protection mechanism comprises multiple protective baffle plates 41, multiple first rotating arm 42, multiple connecting axle 43, multiple the second turning arm 44, drive link 45, cylinder 46, pedestal 47 and multiple impeller-hub 48.Each first rotating arm 42 and one second turning arm 44 are integrated part, and protective baffle plate 41 is arranged on first rotating arm 42 for stopping and protecting non-welding region.Between first rotating arm 42 and the second turning arm 44, be provided with axle installing hole, any connecting axle 43 of pedestal 47 vertical planes inserts in the axle installing hole between corresponding first rotating arm 42 and the second turning arm 44.On the second turning arm 44, be also provided with axle installing hole, vertical and be parallelly provided with multiple impeller-hubs 48 on drive link 45, each impeller-hub 48 inserts in the axle installing hole of the second corresponding turning arm 44.Drive link 45 horizontal movement under cylinder 46 effects.
In the present invention, the operation principle of non-welding region protection mechanism is as follows: welding gun is in the time of welding, be subject to the impact of body structure, being partially welded will inevitably appear in some positions, the least bit and rosin joint have influence on non-welding region, and main cause is the position that in welding process, operating personnel cannot visual solder joint.
When the non-welding region protection mechanism of the present invention cylinder 46 is worked, give the thrust of drive link 45 horizontal directions, drive link 45 drives impeller-hub 48 also to do the movement of horizontal direction, and first rotating arm 42 and the second turning arm 44 are rotated around connecting axle 43 under impeller-hub 48 and connecting axle 43 styles of work.In the process of rotation, protective baffle plate 41 is positioned at also corresponding changing of vertical height; thereby for the non-welding region of differing heights; can be by under cylinder action; protective baffle plate 41 is blocked; so just can greatly reduce to occur being partially welded, the least bit and rosin joint situation, also well protection to non-welding region.Protective baffle plate 41 sizes are interchangeable to adapt to the non-welding region of different areas.Because many automobile same area are welded simultaneously, so can use multiple protective baffle plates 41.
As shown in Figure 6, the middle welding controller control method of robot of the present invention intermediate frequency resistance welded switch board is as follows: by the analysis to qualified solder joint, establish sample curve; In welding process, each millisecond all can detect and feed back electric current and the resistance of welding, contrasts by the analysis of welding controller 1 and with sample curve, automatically welding current and time adjusted; Adjust according to energy conservation principle, when weld interval, prolongation is unlocked, and welding controller 1 regulatory function guarantees that the energy of actual soldered solder joint is more than or equal to the energy of sample solder joint; While compensation if there is splashing, after discovery is splashed, the loss of metal liquid will compensate by extending weld interval; During if there is disturbance compensation, procedure parameter deviates from sample, has caused disturbance, can be found and compensate by the change of electric current and time, and changing value depends on the type of disturbance.
By reference to the accompanying drawings the present invention is carried out to exemplary description above; obvious realization of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present invention and technical scheme to carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all in protection scope of the present invention.