CN102091854B - Stepless eccentricity adjustable rotating arc sensor - Google Patents
Stepless eccentricity adjustable rotating arc sensor Download PDFInfo
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- CN102091854B CN102091854B CN201110007973A CN201110007973A CN102091854B CN 102091854 B CN102091854 B CN 102091854B CN 201110007973 A CN201110007973 A CN 201110007973A CN 201110007973 A CN201110007973 A CN 201110007973A CN 102091854 B CN102091854 B CN 102091854B
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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 Japanese NKK company invention, and its structure is shown in accompanying drawing 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 shown in accompanying drawing 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 through a self-aligning bearing 27.Motor 23 drives the eccentric gear 28 that conducting rod 1 is housed through 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 through 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 was shown in accompanying drawing 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 like 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 is inconvenient in order to overcome, ignition tip is prone to scaling loss, carbon brush is fragile, 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 said stepless adjustable eccentric comprises hollow casing and conducting rod; Be characterized in that said enclosure interior is equipped with the eccentric adjusting platform and is sleeved on the rotation platform in the eccentric adjusting platform through ball bearing; Said rotation platform has eccentric arm, micromachine, eccentric adjusting motor is housed on said eccentric adjusting platform and by the motor-driven ball-screw of eccentric adjusting, said micromachine rotates through 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; Said 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 said 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 said micromachine and a motor gear link, engaged transmission between this motor gear and the travelling gear, and this travelling gear is fixedly connected and can drives this rotation platform rotation with said rotation platform.
At least one optical axis also is housed in the said housing, and this optical axis is sleeved on the eccentric adjusting platform through 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, and eccentric arm is generally about 2mm, and the rotation platform of sensor according to the 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.Said rotation platform is just round platform, has eccentric pivot hole on this rotation platform, and said eccentric arm is meant the distance between the axle center of the center of circle and eccentric pivot hole of rotation platform.
Eccentric adjusting motor and ball-screw are mounted on the eccentric adjusting platform; Through 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, said 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 said 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 through 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. having combined 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
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
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, comprise hollow casing 4 and conducting rod 1, eccentric adjusting motor 7, micromachine 20, ball-screw 5, eccentric adjusting platform 6, rotation platform 18 are equipped with in said housing 4 inside; Said 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.Said 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; Through 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 said housing 4, and these two optical axises 15 are sleeved on the eccentric adjusting platform 6 through 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.Said rotation platform 18 is sleeved in the eccentric adjusting platform 6 through ball bearing 19; On this eccentric adjusting platform 6 micromachine 20 is installed; The output shaft of said 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 fixedly connected and can drive this rotation platform 18 rotations with said rotation platform 18, 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; Said 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; Said rotation platform 18 has small eccentric arm, and when 18 motions of micromachine 20 driven in rotation platforms, 1 hinge with the top of conducting rod is 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 through control eccentric adjusting motor 7 rotation ball leading screws 5.
The lower end of said 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 said 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 said housing (4) inside is equipped with eccentric adjusting platform (6) and is sleeved on the rotation platform (18) in the eccentric adjusting platform (6) through ball bearing (19); Said rotation platform (18) has eccentric arm; The ball-screw (5) that micromachine (20), eccentric adjusting motor (7) is housed on said eccentric adjusting platform (6) and drives by eccentric adjusting motor (7), said micromachine (20) rotates through 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); Said 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 said 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; Said 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 said housing (4), and this optical axis (15) is sleeved on eccentric adjusting platform (6) through 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 said 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 said 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 fixedly connected and can drive this rotation platform (18) rotation with said rotation platform (18).
6. the rotary arc sensor of stepless adjustable eccentric according to claim 2; It is characterized in that; The steam protection connector (10) that said 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110007973A CN102091854B (en) | 2011-01-14 | 2011-01-14 | Stepless eccentricity adjustable rotating arc sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110007973A CN102091854B (en) | 2011-01-14 | 2011-01-14 | Stepless eccentricity adjustable rotating arc sensor |
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| Publication Number | Publication Date |
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| CN102091854A CN102091854A (en) | 2011-06-15 |
| CN102091854B true CN102091854B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110007973A Expired - Fee Related CN102091854B (en) | 2011-01-14 | 2011-01-14 | Stepless eccentricity adjustable rotating arc sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| JPH01241383A (en) * | 1988-03-22 | 1989-09-26 | Nkk Corp | Rotary arc welding torch |
| JPH0523856A (en) * | 1991-07-24 | 1993-02-02 | Nkk Corp | Rotating arc welding method |
| JP3117363B2 (en) * | 1994-06-24 | 2000-12-11 | 日本鋼管工事株式会社 | High-speed rotating arc welding equipment |
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- 2011-01-14 CN CN201110007973A patent/CN102091854B/en not_active Expired - Fee Related
Patent Citations (5)
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|---|---|---|---|---|
| US4047656A (en) * | 1976-03-03 | 1977-09-13 | Mac Machine & Metal Works Inc. | Orbital motion welding head |
| EP1385361A1 (en) * | 2002-07-25 | 2004-01-28 | Wu, Chun-fu | Plasma arc torch |
| CN1657211A (en) * | 2005-03-23 | 2005-08-24 | 江苏科技大学 | Rotary electric arc narrow gap welding method and device driven by hollow shaft motor |
| JP5023856B2 (en) * | 2007-07-18 | 2012-09-12 | 富士ゼロックス株式会社 | Arithmetic processing device and arithmetic processing program |
| CN101200018A (en) * | 2007-12-05 | 2008-06-18 | 哈尔滨工业大学 | Rotating arc narrow gap welding torque |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN102091854A (en) | 2011-06-15 |
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