CN102091854A - Stepless eccentricity adjustable rotating arc sensor - Google Patents
Stepless eccentricity adjustable rotating arc sensor Download PDFInfo
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- CN102091854A CN102091854A CN 201110007973 CN201110007973A CN102091854A CN 102091854 A CN102091854 A CN 102091854A CN 201110007973 CN201110007973 CN 201110007973 CN 201110007973 A CN201110007973 A CN 201110007973A CN 102091854 A CN102091854 A CN 102091854A
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Abstract
The invention discloses a stepless eccentricity adjustable rotating arc sensor, belongs to the field of welding auxiliary devices, and aims to solve the problems of inconvenient adjustment of eccentricity, large mechanical vibration and noise and the like of the conventional rotating arc sensor. The sensor comprises a shell and a conducting rod; an eccentricity adjusting platform is arranged in the shell, and is provided with an eccentricity adjusting motor and a ball screw; a rotary platform driven by a micromotor through a gear is arranged in the eccentricity adjusting platform; a hinge is formed between the upper end of the conducting rod and the top of the shell; the conducting rod passes through an eccentric rotor and is in hinge connection with a self aligning ball bearing; the lower end of the conducting rod is fixedly connected with a vapor protective joint of which the lower end is provided with a conducting nozzle; and a welding wire passes through the conducting rod to rotate, and can form a conducting tight movable fit with the conducting nozzle. The sensor can precisely generate rotating welding arcs with different turning radii, realizes stepless adjustment of eccentric radii, is simple in structure and stable in performance, and is a brand-new concept rotating arc sensor.
Description
Technical field
The present invention relates to a kind of auxiliary welding equipment, especially a kind of rotary arc sensor device of regulating the rotating eccentricity radius by motor.
Background technology
The rotary arc sensor device, make welding arc along the direction swing of carrying out perpendicular to welding, conducting rod in welding torch itself or the welding torch is done the transversal scanning campaign, main representative organization has: a kind of is the eighties in last century, the conducting rod cylinder rotating manner of Japan NKK company invention, its structure as shown in Figure 2.It relies on the eccentric throw of welding wire 24 leadout holes on conducting rod 1 end face to realize that electric arc rotatablely moves, and the eccentric throw of leadout hole is exactly the electric arc radius of turn.Another kind is the conducting rod circular cone rotating manner of German Aachen company exploitation, and as shown in Figure 3, conducting rod 1 one ends are fixed on the spherical linkage 26, are the vertex of a cone of conducting rod 1 conical motion with this hinge.Conducting rod 1 is contained in the eccentric orfice of an eccentric gear 28 by a self-aligning bearing 27.Motor 23 drives the eccentric gear 28 that conducting rod 1 is housed by driving gear, and then conducting rod 1 is that the vertex of a cone is made conical motion with the hinge.The movement locus of conducting rod 1 lower end is exactly the track of electric arc rotation.The electric arc radius of turn can necessarily be regulated by moving up and down self-aligning bearing 27 positions.Also have a kind of patent " the rotation sweep welding torch that hollow shaft motor drives " that is Tsing-Hua University in application in 1992, it is by the upper and lower spherical bearing of conducting rod hollow shaft motor, compositions such as inside and outside eccentric bushing and photoelectricity positioning apparatus.Conducting rod is motor axis hole athwart, spherical bearing connected with motor about its upper end and pars intermedia passed through respectively, and outer eccentric bushing is installed in the motor shaft lower end, and interior eccentric bushing is installed in the endoporus of outer eccentric bushing, in the eccentric bushing, its structure as shown in Figure 4 in the lower end spherical bearing was installed on.After the nineties in last century, some novel rotary arc sensors have been developed successively, people such as C.H.Kim as Korea S have made a kind of rotary arc sensor, rely on the off-centre of ignition tip to realize rotatablely moving of electric arc, and its eccentric throw is exactly the radius of turn of electric arc.In recent years, robot of University Of Nanchang and Automation of Welding key lab have further carried out some intensive researchs to rotary arc sensor at aspects such as miniaturization and vibration dampings.But, up to the present also do not see report about automatically controlled adjusting rotating the arc eccentric stiffener aspect.
Summary of the invention
Existing rotating the arc eccentric adjusting inconvenience, the easy scaling loss of ignition tip, carbon brush are fragile in order to overcome, mechanical oscillation and noise is big, the complicated defective of assembly and disassembly, the present invention aims to provide a kind of rotary arc sensor of stepless adjustable eccentric, this sensor can strengthen the rotating the arc practicality by the rotating scanning device of motor-driven adjusting rotating eccentricity radius.
The technical solution adopted for the present invention to solve the technical problems is: the rotary arc sensor of described stepless adjustable eccentric comprises hollow casing and conducting rod, be characterized in that described enclosure interior is equipped with the eccentric adjusting platform and is sleeved on rotation platform in the eccentric adjusting platform by ball bearing; Described rotation platform has eccentric arm, micromachine, eccentric adjusting motor is housed on described eccentric adjusting platform and by the motor-driven ball-screw of eccentric adjusting, described micromachine rotates by the gear drive rotation platform; Conductive cable that is communicated with welding machine and the steam that links to each other with wire convey soft pipe are protected connector to be sealed and matched and are packed in the top of housing, described conducting rod upper end cooperates with this steam protection connector be mounted to conduct and with the top formation hinge of housing, this conducting rod passes an eccentric rotor and is connected with self-aligning ball bearing formation hinge; The lower end of described conducting rod passes and connects firmly with steam protection connector from housing bottom, and this steam protection connector lower end is connected with an ignition tip, and welding wire passes the conducting rod inner chamber and forms rotation, and can become conduction closely movingly with ignition tip.
The output shaft of described micromachine and a motor gear link, engaged transmission between this motor gear and the travelling gear, and this travelling gear is fixedlyed connected with described rotation platform and can be driven this rotation platform rotation.
At least one optical axis also is housed in the described housing, and this optical axis is sleeved on the eccentric adjusting platform by linear bearing and is fixed in the housing.Linear bearing and optical axis are sleeved on the eccentric adjusting platform and are fixed in the housing, help reducing the pressure that ball-screw bears the eccentric adjusting platform.
The eccentric arm of existing similar rotation platform is non-adjustable, eccentric arm is generally about 2mm, and the rotation platform of sensor of the present invention has small eccentric arm, its eccentric arm is 0.20mm-0.3mm, be preferably 0.25mm, the eccentric arm of existing relatively similar rotation platform is small, therefore when the minitype motor driving rotation platform moves, conducting rod is that the vertex of a cone is made conical motion with the hinge at top then, and the lower end of ignition tip then can produce the radius of turn after amplifying.Because the eccentric throw of rotation platform is very little, reduced greatly simultaneously because the sensor vibration that eccentric block causes.Described rotation platform is just round platform, has eccentric pivot hole on this rotation platform, and described eccentric arm is meant the distance between the axle center of the center of circle of rotation platform and eccentric pivot hole.
Eccentric adjusting motor and ball-screw are mounted on the eccentric adjusting platform, by control eccentric adjusting motor rotation ball leading screw, thereby ball-screw drives the eccentric adjusting platform and moves change rotating eccentricity radius, so the rotation sweep radius is regulated convenient control by the eccentric adjusting motor.
In order to prevent that housing and welding base metal are short-circuited, described housing bottom becomes Insulation Coordination with an electric insulation bakelite, and this electric insulation bakelite lower end connects firmly into the protection gas hood cover cap of hermetic seal on steam protection connector and ignition tip.
The steam protection connector that described conducting rod lower end connects firmly is preferably double-decker; outer for being used to provide the gas shield layer of welding protection gas; internal layer is the water cooling layer that is used to cool off ignition tip; the structure of this steam one helps reducing of sensor base size, makes sensor have better accessibility.
The present invention can be used for accurately producing the rotating welding electric arc of different radiuses of rotation by the scaning welding torch of automatically controlled adjusting rotating eccentricity, has realized rotating eccentricity radius step-less adjustment.
Compare with existing rotary arc sensor, the invention has the beneficial effects as follows: 1. the rotation sweep radius is regulated by the eccentric adjusting motor, convenient control.2. because the eccentric throw of rotation platform is very little, reduced greatly because the sensor vibration that eccentric block causes.3. standard component increases, and difficulty of processing reduces, and cost reduces.
The integral structure of steam protection connector helps reducing of sensor end size, makes sensor have better accessibility.5. combining conducting rod conical motion mode rotary arc sensor and hollow shaft motor mode rotary arc sensor scheme, is a kind of rotary arc sensor of brand new ideas.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the structural representation of existing conducting rod rotating manner rotary arc sensor.
Fig. 3 is the structural representation of existing conducting rod conical motion mode rotary arc sensor.
Fig. 4 is the structural representation of existing hollow shaft motor mode rotary arc sensor.
Among the figure:
The 1-conducting rod, the 2-upper end cover, 3, the 21-self-aligning ball bearing,
The 4-housing, the 5-ball-screw, 6-eccentric adjusting platform,
7-eccentric adjusting motor, 8-aligning driven gear, 9-aligning driving gear,
10-aqueous vapor protection joint, 11-protects gas hood, the 12-ignition tip,
13-electric insulation bakelite, the 14-fixed mount, the 15-optical axis,
The 16-travelling gear, the 17-motor gear, the 18-rotation platform,
The 19-ball bearing, the 20-micromachine, the 22-wire feeder,
The 23-motor; The 24-welding wire, the 25-bearing,
The 26-spherical linkage, the 27-self-aligning bearing, the 28-eccentric gear,
29-electric arc, the 30-electrode, the 31-coding disk,
The 32-eccentric stiffener, the 33-core-regulating mechanism.
The specific embodiment
Below will further describe in detail the rotary arc sensor structure and the operation principle of stepless adjustable eccentric.
A kind of rotary arc sensor of stepless adjustable eccentric as shown in Figure 1, comprises hollow casing 4 and conducting rod 1, and eccentric adjusting motor 7, micromachine 20, ball-screw 5, eccentric adjusting platform 6, rotation platform 18 are equipped with in described housing 4 inside; Described rotation platform 18 have an eccentric arm, this eccentric arm is 0.25mm.These members are cores of whole sensor, can realize the adjusting and the driving force that the electric arc rotation is provided of eccentric arm.Described eccentric adjusting motor 7 and ball-screw 5 are housed on eccentric adjusting platform 6, the sliding platform of this ball-screw 5 is fixed on the eccentric adjusting platform 6, by control eccentric adjusting motor 7 rotation ball leading screws 5,, ball-screw 5 moves change rotating eccentricity radius thereby driving eccentric adjusting platform 6.Two optical axises 15 also are housed in the described housing 4, and these two optical axises 15 are sleeved on the eccentric adjusting platform 6 by linear bearing and are fixed in the housing 4, can alleviate the stressed of ball-screw 5 effectively, two optical axises 15 and 5 one-tenth 120 ° of ball-screws.Described rotation platform 18 is sleeved in the eccentric adjusting platform 6 by ball bearing 19, on this eccentric adjusting platform 6 micromachine 20 is installed, the output shaft of described micromachine 20 and a motor gear 17 link, engaged transmission between this motor gear 17 and the travelling gear 16, this travelling gear 16 is fixedlyed connected with described rotation platform 18 and can be driven this rotation platform 18 rotations, thereby the driving force of electric arc rotation is provided.
Conductive cable that is communicated with welding machine and the steam that links to each other with wire convey soft pipe are protected connector 10 to be sealed and matched and are packed in the top of housing 4, described conducting rod 1 upper end cooperates with this steam protection connector 10 to be mounted to and conducts and form hinge with the top of housing 4, and this conducting rod 1 passes an eccentric rotor and is connected with self-aligning ball bearing 3 formation hinges; Described rotation platform 18 has small eccentric arm, and when micromachine 20 drove rotation platform 18 motions, 1 hinge with the top of conducting rod was that the vertex of a cone is made conical motion, and the lower end of ignition tip 12 then can produce the radius of turn after amplifying.And can thereby driving eccentric adjusting platform 6, ball-screw 5 move change rotating eccentricity radius by control eccentric adjusting motor 7 rotation ball leading screws 5.
The lower end of described conducting rod 1 passes from housing 4 bottoms and connects firmly with steam protection connector 10, and these steam protection connector 10 lower ends are connected with an ignition tip 12; In order to prevent that housing 4 and welding base metal are short-circuited, in housing 4 bottoms electric insulation bakelite 13 is housed, these 13 one-tenth Insulation Coordination in housing 4 bottoms and electric insulation bakelite have been isolated housing 4 and have been protected being electrically connected of gas hood 11 with the bottom, have stopped the generation of short circuit.These electric insulation bakelite 13 lower ends connect firmly into protection gas hood 11 cover caps of hermetic seal on steam protection connector 10 and ignition tip 12, and welding wire passes conducting rod 1 inner chamber and forms rotation, and can conduct electricity closely movingly for 12 one-tenth with ignition tip.The steam protection connector 10 that described conducting rod 1 lower end connects firmly is double-decker; outer for being used to provide the gas shield layer of welding protection gas; internal layer is the water cooling layer that is used to cool off ignition tip; the structure of this steam one helps reducing of sensor base size, makes sensor have better accessibility.
Claims (6)
1. the rotary arc sensor of a stepless adjustable eccentric, comprise hollow casing (4) and conducting rod (1), it is characterized in that described housing (4) inside is equipped with eccentric adjusting platform (6) and is sleeved on the interior rotation platform (18) of eccentric adjusting platform (6) by ball bearing (19); Described rotation platform (18) has eccentric arm, the ball-screw (5) that micromachine (20), eccentric adjusting motor (7) is housed on described eccentric adjusting platform (6) and drives by eccentric adjusting motor (7), described micromachine (20) rotates by gear drive rotation platform (18); Conductive cable that is communicated with welding machine and the steam that links to each other with wire convey soft pipe are protected connector (10) to be sealed and matched and are packed in the top of housing (4), described conducting rod (1) upper end cooperates with this steam protection connector (10) be mounted to conduct and with the top formation hinge of housing (4), this conducting rod (1) passes an eccentric rotor and is connected with self-aligning ball bearing (3) formation hinge; The lower end of described conducting rod (1) passes from housing (4) bottom and connects firmly with steam protection connector (10); this steam protection connector (10) lower end is connected with an ignition tip (12); welding wire passes conducting rod (1) inner chamber and forms rotation, and can become conduction closely movingly with ignition tip (12).
2. the rotary arc sensor of stepless adjustable eccentric according to claim 1; it is characterized in that; described housing (4) bottom becomes Insulation Coordination with an electric insulation bakelite (13), and this electric insulation bakelite (13) lower end connects firmly into protection gas hood (11) cover cap of hermetic seal and protects on connector (10) and the ignition tip (12) at steam.
3. the rotary arc sensor of stepless adjustable eccentric according to claim 1 and 2, it is characterized in that, at least one optical axis (15) also is housed in the described housing (4), and this optical axis (15) is sleeved on eccentric adjusting platform (6) by linear bearing and goes up and be fixed in the housing (4).
4. the rotary arc sensor of stepless adjustable eccentric according to claim 1 and 2 is characterized in that, the eccentric arm of described rotation platform (18) is 0.2mm-0.3mm.
5. the rotary arc sensor of stepless adjustable eccentric according to claim 1 and 2, it is characterized in that, the output shaft of described micromachine (20) and a motor gear (17) link, engaged transmission between this motor gear (17) and the travelling gear (16), this travelling gear (16) are fixedlyed connected with described rotation platform (18) and can be driven this rotation platform (18) rotation.
6. the rotary arc sensor of stepless adjustable eccentric according to claim 2; it is characterized in that; the steam protection connector (10) that described conducting rod (1) lower end connects firmly is a double-decker; outer for being used to provide the gas shield layer of welding protection gas, internal layer is the water cooling layer that is used to cool off ignition tip.
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CN201110007973A CN102091854B (en) | 2011-01-14 | 2011-01-14 | Stepless eccentricity adjustable rotating arc sensor |
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CN201110007973A CN102091854B (en) | 2011-01-14 | 2011-01-14 | Stepless eccentricity adjustable rotating arc sensor |
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CN102091854B CN102091854B (en) | 2012-10-10 |
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Cited By (17)
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CN102319938A (en) * | 2011-09-05 | 2012-01-18 | 湘潭大学 | Double-drive rotary stirring submerged arc build-up welding sensor |
CN102922095A (en) * | 2012-10-31 | 2013-02-13 | 湘潭大学 | Magnetic control electric arc rotation sensor for seam tracking |
CN103182595A (en) * | 2013-03-29 | 2013-07-03 | 华南理工大学 | Welding gun for rotating arc gas metal arc welding |
CN104493333A (en) * | 2014-11-21 | 2015-04-08 | 南昌航空大学 | Rotating arc sensor for shared-welding-pool twin-wire tandem sequence welding |
CN105665903A (en) * | 2016-04-07 | 2016-06-15 | 湘潭大学 | Double-thread rotary electric arc sensor |
CN105817741A (en) * | 2016-04-21 | 2016-08-03 | 南昌大学 | Rotating arc sensor for gas shielded welding |
CN105817742A (en) * | 2016-04-22 | 2016-08-03 | 南昌大学 | Accessibility-enhanced TIG welding rotating arc sensor |
CN106041261A (en) * | 2016-08-02 | 2016-10-26 | 无锡研奥电子科技有限公司 | Rotary arc sensor with dust prevention effect |
CN106077903A (en) * | 2016-08-02 | 2016-11-09 | 无锡研奥电子科技有限公司 | A kind of rotary arc sensor |
CN106112209A (en) * | 2016-08-02 | 2016-11-16 | 无锡研奥电子科技有限公司 | Rotary arc sensor housing |
CN106141377A (en) * | 2016-08-02 | 2016-11-23 | 无锡研奥电子科技有限公司 | The signal pickup assembly of rotary arc sensor |
CN107008994A (en) * | 2017-05-31 | 2017-08-04 | 湘潭大学 | A kind of efficient vertical position welding welder of pair of servo rotating the arc |
CN107414257A (en) * | 2017-08-09 | 2017-12-01 | 南昌大学 | A kind of water-cooled TIG welds rotary arc sensor |
CN110524130A (en) * | 2019-09-25 | 2019-12-03 | 哈尔滨科能熔敷科技有限公司 | A kind of rotary welding gun for deposition equipment |
CN110722257A (en) * | 2019-10-12 | 2020-01-24 | 江苏科技大学 | Stepless eccentric adjusting rotary arc welding torch and adjusting method thereof |
CN114473139A (en) * | 2022-01-28 | 2022-05-13 | 湘潭大学 | Self-adaptive control method and system for curved surface of rotary TIG arc welding line |
CN117943767A (en) * | 2024-03-22 | 2024-04-30 | 广东博盈特焊技术股份有限公司 | Arc welding gun oscillator device |
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Cited By (23)
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CN102319938B (en) * | 2011-09-05 | 2013-12-25 | 湘潭大学 | Double-drive rotary stirring submerged arc build-up welding sensor |
CN102319938A (en) * | 2011-09-05 | 2012-01-18 | 湘潭大学 | Double-drive rotary stirring submerged arc build-up welding sensor |
CN102922095A (en) * | 2012-10-31 | 2013-02-13 | 湘潭大学 | Magnetic control electric arc rotation sensor for seam tracking |
CN102922095B (en) * | 2012-10-31 | 2014-10-15 | 湘潭大学 | Magnetic control electric arc rotation sensor for seam tracking |
CN103182595A (en) * | 2013-03-29 | 2013-07-03 | 华南理工大学 | Welding gun for rotating arc gas metal arc welding |
CN104493333B (en) * | 2014-11-21 | 2016-08-17 | 南昌航空大学 | A kind of congruent melting pond mariages tandem weldering rotary arc sensor |
CN104493333A (en) * | 2014-11-21 | 2015-04-08 | 南昌航空大学 | Rotating arc sensor for shared-welding-pool twin-wire tandem sequence welding |
CN105665903B (en) * | 2016-04-07 | 2017-11-07 | 湘潭大学 | A kind of mariages rotary arc sensor |
CN105665903A (en) * | 2016-04-07 | 2016-06-15 | 湘潭大学 | Double-thread rotary electric arc sensor |
CN105817741A (en) * | 2016-04-21 | 2016-08-03 | 南昌大学 | Rotating arc sensor for gas shielded welding |
CN105817742A (en) * | 2016-04-22 | 2016-08-03 | 南昌大学 | Accessibility-enhanced TIG welding rotating arc sensor |
CN106041261A (en) * | 2016-08-02 | 2016-10-26 | 无锡研奥电子科技有限公司 | Rotary arc sensor with dust prevention effect |
CN106077903A (en) * | 2016-08-02 | 2016-11-09 | 无锡研奥电子科技有限公司 | A kind of rotary arc sensor |
CN106112209A (en) * | 2016-08-02 | 2016-11-16 | 无锡研奥电子科技有限公司 | Rotary arc sensor housing |
CN106141377A (en) * | 2016-08-02 | 2016-11-23 | 无锡研奥电子科技有限公司 | The signal pickup assembly of rotary arc sensor |
CN107008994A (en) * | 2017-05-31 | 2017-08-04 | 湘潭大学 | A kind of efficient vertical position welding welder of pair of servo rotating the arc |
CN107414257A (en) * | 2017-08-09 | 2017-12-01 | 南昌大学 | A kind of water-cooled TIG welds rotary arc sensor |
CN110524130A (en) * | 2019-09-25 | 2019-12-03 | 哈尔滨科能熔敷科技有限公司 | A kind of rotary welding gun for deposition equipment |
CN110722257A (en) * | 2019-10-12 | 2020-01-24 | 江苏科技大学 | Stepless eccentric adjusting rotary arc welding torch and adjusting method thereof |
CN110722257B (en) * | 2019-10-12 | 2021-07-13 | 江苏科技大学 | Stepless eccentric adjusting rotary arc welding torch and adjusting method thereof |
CN114473139A (en) * | 2022-01-28 | 2022-05-13 | 湘潭大学 | Self-adaptive control method and system for curved surface of rotary TIG arc welding line |
CN114473139B (en) * | 2022-01-28 | 2023-10-20 | 湘潭大学 | Self-adaptive control method and system for rotating TIG arc welding seam curved surface |
CN117943767A (en) * | 2024-03-22 | 2024-04-30 | 广东博盈特焊技术股份有限公司 | Arc welding gun oscillator device |
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