CN102189323A - Method and system for replacing electrode outside working position of robot spot welding - Google Patents

Method and system for replacing electrode outside working position of robot spot welding Download PDF

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Publication number
CN102189323A
CN102189323A CN2010101246373A CN201010124637A CN102189323A CN 102189323 A CN102189323 A CN 102189323A CN 2010101246373 A CN2010101246373 A CN 2010101246373A CN 201010124637 A CN201010124637 A CN 201010124637A CN 102189323 A CN102189323 A CN 102189323A
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China
Prior art keywords
soldering turret
electrode
robot
spot welding
replacing
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Pending
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CN2010101246373A
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Chinese (zh)
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褚卫东
张青亮
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Huayu Automotive Body Components Technology Shanghai Co Ltd
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Shanghai Tractor and Internal Combustion Engine Co Ltd
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Application filed by Shanghai Tractor and Internal Combustion Engine Co Ltd filed Critical Shanghai Tractor and Internal Combustion Engine Co Ltd
Priority to CN2010101246373A priority Critical patent/CN102189323A/en
Publication of CN102189323A publication Critical patent/CN102189323A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for replacing an electrode outside a working position of robot spot welding; the method is suitable for a pair of servo welding tongs and a pair of pneumatic welding tongs and comprises the following steps: when the grinding of the electrode of a pair of welding tongs reaches specified times, the pair of welding tongs automatically stops welding; and a robot body automatically sends the pair of welding tongs out from the working position so as to replace the electrode. When the method is adopted for replacing the electrode of the pair of welding tongs, the robot body automatically sends the pair of welding tongs out from the working position so that operating personnel can replace the electrode of the pair of welding tongs outside the working station and do not need to enter a safety fence for replacing the electrode, thereby shortening the time of replacing the electrode by the operating personnel, accelerating the working efficiency and simultaneously leading the personnel safety of the operating personnel to be well guaranteed. The invention also discloses a system for replacing the electrode outside the working position of the robot spot welding, which is used for realizing the method.

Description

Robot Spot Welding station external electrode is changed method and system
Technical field
The present invention relates to a kind of Robot Spot Welding electrode replacing method, the particularly a kind of method and system that can outside station, change to the Robot Spot Welding electrode.
Background technology
In vehicle complete vehicle and parts welding is at present produced, adopted Robot Spot Welding in a large number, the welding gun of spot welding at present generally adopts servo torch or pneumatic welding gun, its primary structure as shown in Figure 1, comprise PLC controller 1, robot switch board 2, robot body 3, soldering turret controller 4, soldering turret 5, PLC controller 1 communicates to connect with robot switch board 2,3 actions of robot switch board 2 control robot bodies, soldering turret 5 is positioned on the robot body 3, robot body 3 drives soldering turret 5 and moves, soldering turret controller 4 is connected control soldering turret 5 and welds with soldering turret 5, soldering turret 5 is by water inlet pipe 7, return pipe 8 is connected with water source 6, and soldering turret 5 is provided with electrode.In process of production, general every production 60 cover parts (about 3000 solder joints) just need carry out electrode to be changed, and per tour need be changed the 2-3 sub-electrode usually.Present most of factory is when carrying out the electrode replacing, need operating personnel to enter in the safe fence, closing the laggard column electrode of water valve of soldering turret water inlet pipe, return pipe changes, treat to open again after the electrode replacing is finished the water valve of water inlet pipe, return pipe, operating personnel withdraw from safety door, and startup reconditioning then resets.Operating personnel move more in the process of this replacing electrode, personnel's running route is longer, machinery in the safe fence station is easy to the person is damaged, therefore operating personnel must carefully walk in the safe fence station, the general time that needs about 3 minutes of one-time electrode of changing is arranged again, the replacing time is longer, can have influence on the production efficiency of enterprise.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention provides a kind of Robot Spot Welding that can make and carry out the method that electrode is changed outside station.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of Robot Spot Welding station external electrode replacing method, it comprises the steps: that when the reconditioning of soldering turret electrode reaches stipulated number soldering turret stops welding automatically, robot body is sent station automatically with soldering turret and is carried out the electrode replacing.
Preferably, when the reconditioning of soldering turret electrode reaches stipulated number, when soldering turret stops to weld automatically with sound and light alarm.But alert is carried out the electrode replacing like this.
The invention also discloses a kind of Robot Spot Welding station external electrode of said method of realizing and change system, it adopts following technical scheme:
A kind of Robot Spot Welding station external electrode is changed system, preferably, described soldering turret is servo soldering turret, comprise PLC controller, robot switch board, robot body, soldering turret controller, soldering turret, described soldering turret is connected with the water source by water inlet pipe, return pipe, described water inlet pipe, return pipe are provided with shutoff valve, and described shutoff valve is connected with described PLC controller, and described PLC controller also is connected with an acoustic-optic alarm, a control button.
Preferably, described soldering turret is a pneumatic welding rod holder, and the supply air line of described pneumatic welding rod holder is provided with an electronics proportioning valve, and described electronics proportioning valve is connected with described robot switch board.
Preferably, described PLC controller also is connected with a touch-screen.
Technique scheme has following beneficial effect: adopt said method to carry out electrode on the soldering turret when changing, robot body can be sent station with soldering turret, operating personnel can change the electrode of soldering turret in the station outside like this, carry out the electrode replacing in the safety guard and need not to enter into again, shortened the time that operating personnel change electrode like this, accelerate operating efficiency, also made operating personnel's personal safety obtain better guarantee simultaneously.
Description of drawings
Fig. 1 is the structural representation of existing Robot Spot Welding system.
Fig. 2 changes the structural representation of an embodiment of system for Robot Spot Welding station external electrode of the present invention.
Fig. 3 changes the structural representation of another embodiment of system for Robot Spot Welding station external electrode of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
As shown in Figure 2, this Robot Spot Welding station external electrode replacing system comprises PLC controller 1, robot switch board 2, robot body 3, soldering turret controller 4, soldering turret 5, PLC controller 1 carries out two-way communication with robot switch board 2 and is connected, 3 actions of robot switch board 2 control robot bodies, soldering turret 5 is positioned on the robot body 3, robot body 3 drives soldering turret 5 and moves, soldering turret controller 4 is connected control soldering turret 5 and welds with soldering turret 5, soldering turret 5 is connected with water source 6 by water inlet pipe 7, return pipe 8.On water inlet pipe 7 and return pipe 8, be provided with a shutoff valve 9 and be connected, also be connected with an acoustic-optic alarm 11 and a control button 10 on the PLC controller 1 with PLC controller 1.PLC controller 1 also is connected with a touch-screen 12, can realize human-computer dialogue by touch-screen 12.
Above-mentioned Robot Spot Welding station external electrode is changed system when work, at first detect the number of times of soldering turret 5 top electrodes by PLC controller 1, reach the regulation requirement as the electrode dressing number of times, then PLC controller 1 stops welding by robot switch board 2 control soldering turrets, PLC controller 1 control shutoff valve 9 cuts out the water source of soldering turret 5 simultaneously, and control acoustic-optic alarm 11 and send the sound and light alarm signal, the prompting operating personnel change the electrode on the soldering turret 5.This moment, operating personnel pressed control button 10 for the first time, PLC controller 1 is opened soldering turret 5 by robot switch board 2 and is controlled robot body 3 soldering turret 5 is sent station, change electrode on the soldering turret 5 by operating personnel, after electrode is changed and is finished, operating personnel press control button 10 for the second time, robot switch board 2 will be controlled soldering turret 5 and finish in the electrode pair and check, operating personnel press control button 10 for the third time then, robot body 3 is sent soldering turret 5 back to station and is carried out the one-time electrode reconditioning earlier, electrode dressing end back PLC controller 1 will be controlled shutoff valve 9 and open, soldering turret 5 is resumed water supply, and acoustic-optic alarm 11 stops to report to the police, and soldering turret 5 enters duty.
Such scheme is primarily aimed at servo welding system, and the difference of itself and servo welding system is that soldering turret 5 is to adopt pneumatic welding rod holder for pneumatic spot welding system, as shown in Figure 3, this moment, soldering turret 5 need be connected with a source of the gas 14, on the supply air line between soldering turret 5 and the source of the gas 14, be provided with an electronics proportioning valve 13, electronics proportioning valve 13 is connected with robot switch board 2, after changing electrode, PLC controller 1 adopts little air pressure to close up soldering turret by robot switch board 2 control electronics proportioning valves 13, can conveniently adjust electrode position when checking in electrode pair like this.Press control button 10 after checking in the electrode pair, the big air pressure of robot switch board 2 control electronics proportioning valves 13 employings carries out empty the beating of soldering turret makes soldering turret compress electrode, soldering turret enters station and carries out the one-time electrode reconditioning earlier subsequently, after reconditioning finishes, sound and light alarm is removed, automatically open and send water stop valve 9, equipment returns to the preparation state.
Above-mentioned Robot Spot Welding station external electrode is changed system when the electrode of soldering turret reaches the reconditioning number of times of regulation, soldering turret will stop welding automatically, the while robot body is sent station automatically with soldering turret and is carried out the electrode replacing, adopt this method operating personnel can change the electrode of soldering turret in the station outside, carry out the electrode replacing in the safety guard and need not to enter into again, shortened the time that operating personnel change electrode like this, accelerated operating efficiency, adopt after the method each time of changing electrode to bring up to 1 minute according to statistics, so just can save a large amount of time and be used for production by original 3 minutes.Adopt this method simultaneously, operating personnel carry out the replacing of electrode outside station also safer, makes operating personnel's personal safety obtain better guarantee, and operating personnel need not to walk up and down and reduced labor intensity of operating personnel.This system realizes that expense is lower simultaneously, every cover system hardware cost is no more than 1000 yuan, and cost of labor is also about 1000 yuan, but long-term value is obvious, average two classes of productions every day (changing the 2-3 sub-electrode with per tour calculates) can be produced the 8-12 branch more and be planted, and some months can be recouped capital outlay.
More than the Robot Spot Welding station that the embodiment of the invention provided changed electrode outward be described in detail; for one of ordinary skill in the art; thought according to the embodiment of the invention; part in specific embodiments and applications all can change; in sum; this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.

Claims (5)

1. a Robot Spot Welding station external electrode replacing method is characterized in that, it comprises the steps: that when the reconditioning of soldering turret electrode reaches stipulated number soldering turret stops welding automatically, and robot body is sent station automatically with soldering turret and carried out the electrode replacing.
2. Robot Spot Welding station external electrode replacing method according to claim 1 is characterized in that: when the reconditioning of soldering turret electrode reaches stipulated number, when soldering turret stops to weld automatically with sound and light alarm.
3. a Robot Spot Welding station external electrode is changed system, it is characterized in that: described soldering turret is servo soldering turret, comprise PLC controller, robot switch board, robot body, soldering turret controller, soldering turret, described soldering turret is connected with the water source by water inlet pipe, return pipe, it is characterized in that: described water inlet pipe, return pipe are provided with shutoff valve, described shutoff valve is connected with described PLC controller, and described PLC controller also is connected with an acoustic-optic alarm, a control button.
4. Robot Spot Welding station external electrode according to claim 3 is changed system, it is characterized in that: described soldering turret is a pneumatic welding rod holder, the supply air line of described pneumatic welding rod holder is provided with an electronics proportioning valve, and described electronics proportioning valve is connected with described robot switch board.
5. Robot Spot Welding station external electrode according to claim 3 is changed system, and it is characterized in that: described PLC controller also is connected with a touch-screen.
CN2010101246373A 2010-03-12 2010-03-12 Method and system for replacing electrode outside working position of robot spot welding Pending CN102189323A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128435A (en) * 2011-11-30 2013-06-05 三河世原汽车科技有限公司 Fault detector of welding gun welding nozzle truing device of spot welding robot
CN103419107A (en) * 2012-05-21 2013-12-04 上海航空发动机制造股份有限公司 Automobile welding moving manual coping device and an online coping device
CN104043916A (en) * 2013-03-13 2014-09-17 上海拖拉机内燃机有限公司 Method and system for replacing contact tube outside arc welding station of robot
CN104874907A (en) * 2015-05-15 2015-09-02 上海新申金属制品有限公司 Spot welding system of air-conditioner backboard robot
CN106975832A (en) * 2017-05-12 2017-07-25 上海拖拉机内燃机有限公司 A kind of control method of robot welding product line spot welding reconditioning
CN108672910A (en) * 2018-08-01 2018-10-19 长春三友汽车部件制造有限公司 A kind of pressure between mash welder and its electrode controls automatic switchover system

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CN101152681A (en) * 2006-09-25 2008-04-02 乔治洛德方法研究和开发液化空气有限公司 Process for automatic detection of wear and tear on a welding electrode
CN201077016Y (en) * 2007-05-18 2008-06-25 广州本田汽车有限公司 Electrode reconditioning system for servo welding gun
CN201237735Y (en) * 2008-08-08 2009-05-13 小原(南京)机电有限公司 Multifunctional electrode repair grinding device controller capable of driving four welding machines

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JPS6340683A (en) * 1986-08-04 1988-02-22 Toyota Motor Corp Automatic shaping and automatic exchanging method for welding electrode and its device
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128435A (en) * 2011-11-30 2013-06-05 三河世原汽车科技有限公司 Fault detector of welding gun welding nozzle truing device of spot welding robot
CN103419107A (en) * 2012-05-21 2013-12-04 上海航空发动机制造股份有限公司 Automobile welding moving manual coping device and an online coping device
CN103419107B (en) * 2012-05-21 2016-04-20 上海航空发动机制造股份有限公司 Automobile electric welding mobile manual coping device, to repair a die device online
CN104043916A (en) * 2013-03-13 2014-09-17 上海拖拉机内燃机有限公司 Method and system for replacing contact tube outside arc welding station of robot
CN104874907A (en) * 2015-05-15 2015-09-02 上海新申金属制品有限公司 Spot welding system of air-conditioner backboard robot
CN104874907B (en) * 2015-05-15 2017-11-07 上海新申金属制品有限公司 Air-conditioning backboard robot spot welding system
CN106975832A (en) * 2017-05-12 2017-07-25 上海拖拉机内燃机有限公司 A kind of control method of robot welding product line spot welding reconditioning
CN106975832B (en) * 2017-05-12 2019-06-11 上海拖拉机内燃机有限公司 A kind of control method of robot welding product line spot welding reconditioning
CN108672910A (en) * 2018-08-01 2018-10-19 长春三友汽车部件制造有限公司 A kind of pressure between mash welder and its electrode controls automatic switchover system

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Application publication date: 20110921