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CN201201109Y - Multifunctional buried arc welding trolley - Google Patents

Multifunctional buried arc welding trolley Download PDF

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Publication number
CN201201109Y
CN201201109Y CNU2007200827058U CN200720082705U CN201201109Y CN 201201109 Y CN201201109 Y CN 201201109Y CN U2007200827058 U CNU2007200827058 U CN U2007200827058U CN 200720082705 U CN200720082705 U CN 200720082705U CN 201201109 Y CN201201109 Y CN 201201109Y
Authority
CN
China
Prior art keywords
loaded
chassis
arc welding
wire feed
submerged arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2007200827058U
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Chinese (zh)
Inventor
赵刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Hanyan Weida Technology Co., Ltd.
Original Assignee
CHENGDU HANYAN WEIDA AUTOMATIC WELDING EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDU HANYAN WEIDA AUTOMATIC WELDING EQUIPMENT Co Ltd filed Critical CHENGDU HANYAN WEIDA AUTOMATIC WELDING EQUIPMENT Co Ltd
Priority to CNU2007200827058U priority Critical patent/CN201201109Y/en
Application granted granted Critical
Publication of CN201201109Y publication Critical patent/CN201201109Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a multifunctional submerged arc welding bogie, which comprises a chassis, a pedestal which is positioned on the chassis, a main beam, an upright post which is arranged on the main beam and the lower end of which is arranged on the pedestal, a wire reel, a motor mounting plate which is arranged on the main beam, a wire feed reducing motor, a wire feed roller which is arranged on an output shaft of the wire feed reducing motor, a bracket which is arranged on the reducing motor, a pinch roller which is matched with the wire feed roller, a first aligning roller, a second aligning roller, a welding gun which is connected with the bracket, and a conveying pipe, wherein a rotating joint is arranged between the pedestal and the chassis; the inside of the rotating joint is provided with a connecting plate which is arranged on the chassis, a mounting rack which is arranged on the connecting plate, and a rotating shaft which is arranged inside the mounting rack; the mounting rack is provided with an annular groove along the radial direction; one end of a mounting shaft which is integrated into a whole with a mounting disc passes through the annular groove, is connected into a whole with the rotating shaft, and drives the rotating shaft to rotate inside the mounting rack; the mounting rack is provided with an adjustable handle for controlling rotation of the rotating shaft; and the mounting disc is connected with the pedestal through a connecting piece. The multifunctional submerged arc welding bogie is convenient to operate, and is suitable for flat welding, fillet welding, fillet welding in the flat position and so on.

Description

Multi-functional submerged arc welding carriage
Technical field:
The utility model is relevant with submerged arc welding carriage, and is special relevant with multi-functional submerged arc welding carriage.
Background technology:
Submerged arc welding carriage is the main building block of machine of trolley type submerged arc welding, mainly finish the attitude adjustment of submerged arc welding gun and move (along the welding bead direction), the manufacturer of existing submerged arc welding carriage is a lot, but exist more or less in the comfortable attitude adjustment of finishing the submerged arc welding gun with when mobile and to adjust that inconvenience maybe can not be adjusted, most submerged arc welding carriage only is fit to long straight downhand weld, most of inconvenience realize that welding maybe can realize but can not be in best welded condition weldings for angle welding.
The utility model content:
The purpose of this utility model is in order to overcome above deficiency, to provide a kind of easy to operate, being applicable to the multi-functional submerged arc welding carriage of downhand weld, angle welding, fillet welding in the flat position.The purpose of this utility model is achieved like this:
The multi-functional submerged arc welding carriage of the utility model, comprise chassis 1, be loaded on the walking mechanism on the chassis, be positioned at the base on the chassis, main beam, be contained on the main beam and the lower end is loaded on column on the base, wire reel, be loaded on the motor mounting plate on the main beam, be loaded on the wire feed reducing motor on the motor mounting plate, be loaded on the wire feed rolls on the wire feed reducing motor output shaft, be loaded on the carriage on the reducing motor, be loaded on the contact roller that cooperates with wire feed rolls on the carriage, first alignment wheel, second alignment wheel, the welding gun that the upper end is connected with carriage, funnel, the feed pipe that communicates with the funnel discharging opening, between base and chassis, cradle head is housed, the connecting plate that is loaded on the chassis is arranged in the cradle head, be contained in the installing rack on the connecting plate, be loaded on the rotating shaft in the installing rack, cannelure is arranged on radially on the installing rack, pass cannelure and rotating shaft with an end of mounting disc all-in-one-piece installation shaft and connect as one and drive rotating shaft and in installing rack, rotate, the adjustable handle 28 that the control rotating shaft is rotated is housed on the installing rack, mounting disc is connected with base by connector, unclamp adjustable handle 28, thereby mounting disc axis rotation around the shaft can make the column upset for ± 45 °, the lengthening welding gun can conveniently be realized ship shape welding etc.
First bearing that contains through hole parallel to each other that communicates with the installing rack endoporus is arranged on above-mentioned installing rack one end, contain second bearing of screw, an end of adjustable handle 28 passes the through hole on first bearing and is threaded with screw on second bearing.
Above-mentioned base upper end is the 4th bearing that on through hole and the periphery the 3rd bearing that contains through hole parallel to each other is arranged, contains screw, column lower end stretches in the through hole on the base, set lever 30 1 ends pass the through hole on the 3rd bearing and are threaded with screw on the 4th bearing column is fixed on the base, unclamp set lever, column can be done ± 45 ° of revolutions, but screw set lever, column promptly with the base relative fixed.
Be provided with the welding torch position governor motion between above-mentioned crossbeam and motor mounting plate, comprise the cross slide seat that is loaded on the vertical planker seat on the crossbeam and cooperates with vertical planker seat, be loaded on the cross slide seat respectively, screw mandrel adjusting handle on vertical planker seat, be loaded on the slew gear on the planker seat, slew gear comprises the chassis that is loaded on the planker seat, the platen that is connected with the chassis by connector, be arranged in the rotating disk of chassis and the formed cavity of platen, adjustable set lever 39 1 ends pass be threaded with the chassis rotation of control rotating disk of through hole on the platen, motor mounting plate is connected with platen, when the needs Butt welding gun carries out up and down or front and back trace when adjusting, but the leading screw adjusting handle on the vertical or horizontal planker seat of turn, to reach the adjustment of Butt welding gun position, unclamp adjustable set lever, welding gun can turn round 90 ° with rotating disk before and after crossbeam.
The graduation mark of indicating rotational angle is arranged on the above-mentioned platen, can conveniently indicate the angle of rotation.
On the above-mentioned carriage hinged respectively and can be fixed with the last wheel carrier of dress contact roller, first alignment wheel, down wheel carrier, go up wheel carrier and compress handwheel seat, following wheel carrier alignment handwheel seat, contact roller handle threaded one end passes wheel carrier and compresses the handwheel seat and press closer on last wheel carrier, alignment wheel handle threaded one end passes down wheel carrier alignment handwheel seat and presses closer on following wheel carrier, and adjusting contact roller handle or alignment wheel handle just can be regulated the gap between wire feed rolls and contact roller or first alignment wheel and second alignment wheel.
Above-mentioned wire feed rolls is made up of the wire feed rolls sheet of three closed assemblies, wire feed rolls adopts three closed assemblies, interchangeable, after middle a slice wire feed rolls sheet has worn and torn, the wire feed rolls sheet on both sides can be exchanged to middle continuation use, like this, will be three times of common wire feed rolls the service life of wire feed rolls, for the user has saved spending.
Ignition tip in the above-mentioned welding gun is eccentric in the conducting rod axis; welding wire is closely contacted with welding gun all the time; not because of abrasion electric conductivity variation; difference according to gage of wire; selected ignition tip also has respective change; should note protecting the cleaning of ignition tip and prevent that it from getting rusty, because ignition tip unclean or that get rusty can influence the unimpeded of its electric conductivity or wire feed.
The driving shaft that the dress drive pulley that is loaded on the chassis is arranged in the above-mentioned walking mechanism, the driven shaft of negative pulley wheel is housed, be enclosed within the driving belt on the driving and driven belt pulley, be loaded on the road wheel at master and slave moving axis two ends respectively, be contained in the walking reducing motor on the movable motor bearing in the chassis, be loaded on the active conical gear on the walking reducing motor output shaft, be contained on the driving shaft with the driven bevel gear of active conical gear engagement, walking mechanism adopts four-wheel drive, improved the stationarity of walking greatly, also reduced requirement simultaneously guide rail.
Unclamp the adjustable set lever on the head slew gear, welding gun can turn round 90 ° along rotary disk before and after crossbeam; Unclamp the adjustable handle on the base, welding gun can be around 360 ° of column horizontal rotations; Unclamp the lock-screw on the aluminium carriage, welding gun can turn round 45 ° around about wire feed rolls.Improved the adaptability of automatic weldering dolly so greatly, reached comprehensive welding as much as possible the welded piece shape.
Compare with existing submerged arc welding carriage, the utlity model has following advantage:
1) multiple degrees of freedom is adjusted welding gun and is thrown off restraint attitude, and comprehensive adjustment makes operator's handled easily;
2) can adapt to multiple Type of Welding: downhand weld, angle welding, fillet welding in the flat position etc.;
3) weld characteristics of adaptation submerged-arc welding satisfies the welding requirements of submerged-arc welding to greatest extent;
4) wire feed rolls adopts three closed assembly structures, the service life of raising;
5) welding gun adopts eccentric structure, can revise the welding wire wearing and tearing automatically, has protected conduction good;
6) a lot of parts of dolly all can adopt aluminium with mould compacting form, not only guaranteed each part uniformity, but also alleviated dolly weight, be easy to carrying;
7) the dolly casing adopts wide body structure, has guaranteed that carriage walking is steady.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is a dolly cradle head schematic diagram.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is column, base installation site figure.
Fig. 6 puts schematic diagram for horizontal, vertical planker seat.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the slew gear schematic diagram.
Fig. 9 is the platen structural representation.
Figure 10 is upper and lower wheel carrier position view.
Figure 11 is the wire feed rolls structural representation.
Figure 12 is A-A cutaway view of Figure 11.
Figure 13 is the welding gun structural representation.
Figure 14 is the walking mechanism structural representation.
The specific embodiment:
Referring to Fig. 1~Fig. 4, the multi-functional submerged arc welding carriage of the utility model, comprise chassis 1, be loaded on the walking mechanism 2 in the chassis, be positioned at the base 3 on the chassis, main beam 4 is contained in column 6 on the main beam, wire reel 7 by chuck 5, control cabinet 8, be loaded on the motor mounting plate 9 on the main beam, be loaded on the wire feed reducing motor 10 on the motor mounting plate, be loaded on the wire feed rolls 11 on the wire feed reducing motor output shaft, be loaded on the carriage 15 on the reducing motor, be loaded on the contact roller that cooperates with wire feed rolls 12, the first alignments wheel 13, the second alignments wheel 14 on the carriage, the welding gun 44 that the upper end is connected with carriage, funnel 16, the feed pipe 17 that communicates with the funnel discharging opening is loaded on the feed cylinder 18 on the welding gun, welding gun aligning mechanism 19.Cradle head 20 is housed between base and chassis.The connecting plate 21 that is loaded on the chassis is arranged in the cradle head, be contained in the installing rack 22 on the connecting plate, be loaded on the rotating shaft 23 in the installing rack, cannelure 24 is arranged on radially on the installing rack, pass cannelure and rotating shaft with an end of mounting disc 29 all-in-one-piece installation shaft 25 and connect as one and drive rotating shaft and rotate in installing rack, mounting disc is connected with base by connector.First bearing 26 that contains through hole parallel to each other that communicates with the installing rack endoporus is arranged on installing rack one end, contain second bearing 27 of screw, an end of adjustable handle 28 passes the through hole on first bearing and is threaded with screw on second bearing.
Referring to Fig. 1, Fig. 5, base upper end be a through hole, and peripheral the 3rd bearing 56 that contains through hole parallel to each other is arranged, and contains the 4th bearing 57 of screw.Column lower end stretches in the through hole on the base, and set lever 30 1 ends pass the through hole on the 3rd bearing and are threaded with screw on the 4th bearing column is fixed on the base.
Referring to Fig. 1, Fig. 6, Fig. 7, be provided with welding torch position governor motion 31 between crossbeam and motor mounting plate, comprise the cross slide seat 33 that is loaded on the vertical planker seat 32 on the crossbeam and cooperates with vertical planker seat, be loaded on the screw mandrel adjusting handle 34 on cross slide seat, the vertical planker seat respectively, be loaded on the slew gear 35 on the planker seat.
Referring to Fig. 1, Fig. 8, Fig. 9, slew gear comprises the chassis 36 that is loaded on the planker seat, the platen 37 that is connected with the chassis by adjustment screw, be arranged in the rotating disk 38 of chassis and the formed cavity of platen, adjustable set lever 39 1 ends pass be threaded with the chassis rotation of control rotating disk of through hole on the platen, and motor mounting plate is connected with platen.The graduation mark that the indication gyration is arranged on the platen.
Referring to Fig. 1, Figure 10, hinged respectively on the supporting plate and can be fixed with dress contact roller, first alignment wheel on wheel carrier 40, down wheel carrier 41, on wheel carrier compress handwheel seat 58, following wheel carrier compresses handwheel seat 59, contact roller handle 60 threaded one ends pass wheel carrier and compress the handwheel seat and press closer on last wheel carrier, and alignment wheel handle 61 threaded one ends pass down wheel carrier alignment wheel seat and press closer on wheel carrier down.
Referring to Figure 11, Figure 12, wire feed rolls is made up of the wire feed rolls sheet 42 of three closed assemblies.Welding wire 43 1 ends pass the welding wire via hole between wire feed rolls and contact roller.
Referring to Figure 13, the ignition tip 45 in the welding gun 44 is eccentric in conducting rod 46 axis.
Referring to Figure 14, the driving shaft 48 that the dress drive pulley 47 that is loaded on the chassis is arranged in the walking mechanism, the driven shaft 50 of negative pulley wheel 49 is housed, be enclosed within the driving belt 51 on the driving and driven belt pulley, be loaded on the road wheel 52 at master and slave moving axis two ends respectively, be contained in the walking reducing motor 53 on the movable motor bearing in the chassis, be loaded on the active conical gear 54 on the walking reducing motor output shaft, the driven bevel gear 55 that meshes with the active conical gear is contained on the driving shaft.

Claims (9)

1, multi-functional submerged arc welding carriage, comprise chassis (1), be loaded on the walking mechanism on the chassis, be positioned at the base on the chassis, main beam, be contained on the main beam and the lower end is loaded on column on the base, wire reel, be loaded on the motor mounting plate on the main beam, be loaded on the wire feed reducing motor on the motor mounting plate, be loaded on the wire feed rolls on the wire feed reducing motor output shaft, be loaded on the carriage on the reducing motor, be loaded on the contact roller that cooperates with wire feed rolls on the carriage, first alignment wheel, second alignment wheel, the welding gun that the upper end is connected with carriage, funnel, with the feed pipe that the funnel discharging opening communicates, it is characterized in that between base and chassis, cradle head being housed, the connecting plate that is loaded on the chassis is arranged in the cradle head, be contained in the installing rack on the connecting plate, be loaded on the rotating shaft in the installing rack, cannelure arranged on radially on the installing rack, pass cannelure and rotating shaft with an end of mounting disc all-in-one-piece installation shaft and connect as one and drive rotating shaft and in installing rack, rotate, the adjustable handle (28) that the control rotating shaft is rotated is housed on the installing rack, and mounting disc is connected with base by connector.
2, multi-functional submerged arc welding carriage as claimed in claim 1, it is characterized in that having on installing rack one end first bearing that contains through hole parallel to each other that communicates with the installing rack endoporus, second bearing that contains screw, an end of adjustable handle (28) pass the through hole on first bearing and are threaded with screw on second bearing.
3, multi-functional submerged arc welding carriage as claimed in claim 1 or 2, it is characterized in that the base upper end is the 4th bearing that on through hole and the periphery the 3rd bearing that contains through hole parallel to each other is arranged, contains screw, column lower end stretches in the through hole on the base, and set lever (30) one ends pass the through hole on the 3rd bearing and are threaded with screw on the 4th bearing column is fixed on the base.
4, multi-functional submerged arc welding carriage as claimed in claim 1 or 2, it is characterized in that being provided with between crossbeam and motor mounting plate the welding torch position governor motion, comprise the vertical planker seat that is loaded on the crossbeam, with the cross slide seat that cooperates with vertical planker seat, be loaded on the cross slide seat respectively, screw mandrel adjusting handle on vertical planker seat, be loaded on the slew gear on the planker seat, slew gear comprises the chassis (36) that is loaded on the planker seat, the platen that is connected with the chassis by connector, be arranged in the rotating disk of chassis and the formed cavity of platen, adjustable set lever (39) one ends pass be threaded with the chassis rotation of control rotating disk of through hole on the platen, and motor mounting plate is connected with platen.
5, multi-functional submerged arc welding carriage as claimed in claim 4 is characterized in that the graduation mark of indicating gyration is arranged on the platen.
6, multi-functional submerged arc welding carriage as claimed in claim 1 or 2, it is characterized in that hinged respectively on the carriage and can be fixed with dress contact roller, first alignment wheel on wheel carrier, down wheel carrier, on wheel carrier compress handwheel seat, wheel carrier alignment handwheel seat down, contact roller handle threaded one end passes wheel carrier and compresses the handwheel seat and press closer on last wheel carrier, and alignment wheel handle threaded one end passes down wheel carrier alignment wheel seat and presses closer on wheel carrier down.
7, multi-functional submerged arc welding carriage as claimed in claim 1 or 2 is characterized in that wire feed rolls is made up of the wire feed rolls sheet of three closed assemblies.
8, multi-functional submerged arc welding carriage as claimed in claim 1 or 2 is characterized in that the ignition tip in the welding gun is eccentric in the conducting rod axis.
9, multi-functional submerged arc welding carriage as claimed in claim 1 or 2, it is characterized in that having in the walking mechanism driving shaft of the dress drive pulley that is loaded on the chassis, the driven shaft of negative pulley wheel is housed, be enclosed within the driving belt on the driving and driven belt pulley, be loaded on the road wheel at master and slave moving axis two ends respectively, be contained in the walking reducing motor on the movable motor bearing in the chassis, be loaded on the active conical gear on the walking reducing motor output shaft, the driven bevel gear that meshes with the active conical gear is contained on the driving shaft.
CNU2007200827058U 2007-12-26 2007-12-26 Multifunctional buried arc welding trolley Expired - Fee Related CN201201109Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200827058U CN201201109Y (en) 2007-12-26 2007-12-26 Multifunctional buried arc welding trolley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200827058U CN201201109Y (en) 2007-12-26 2007-12-26 Multifunctional buried arc welding trolley

Publications (1)

Publication Number Publication Date
CN201201109Y true CN201201109Y (en) 2009-03-04

Family

ID=40423420

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200827058U Expired - Fee Related CN201201109Y (en) 2007-12-26 2007-12-26 Multifunctional buried arc welding trolley

Country Status (1)

Country Link
CN (1) CN201201109Y (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179600A (en) * 2011-04-20 2011-09-14 西安长庆科技工程有限责任公司 Submerged automatic arc welding wire conveying system
CN102211240A (en) * 2010-04-09 2011-10-12 中国海洋石油总公司 Welding tractor with steel structure being subjected to gas shielded welding
CN102672312A (en) * 2012-04-20 2012-09-19 无锡市迪索数控焊接设备有限公司 Automatic tube plate welding machine with large wire disc
CN103231158A (en) * 2013-05-07 2013-08-07 南通大力化工设备有限公司 Submerged arc automatic welding device special for tube pot
CN104551358A (en) * 2014-12-19 2015-04-29 福建省马尾造船股份有限公司 Extra-fine filament slag gas submerged arc welding process and equipment for implementing same
CN104874903A (en) * 2015-05-20 2015-09-02 河南省恒远起重机械集团有限公司 Self-travelling type submerged-arc welding trolley
CN105252113A (en) * 2015-11-18 2016-01-20 沈阳大学 Automatic welding walk car of inner ring welding line
CN105983770A (en) * 2015-02-05 2016-10-05 长沙华恒机器人系统有限公司 Submerged-arc welding system for internal circumferential joint of outer container of LNG low-temperature tanker
CN111545869A (en) * 2020-07-13 2020-08-18 常州凯特工业机器人有限公司 Five-axis welding robot
CN118527783A (en) * 2024-07-24 2024-08-23 南京轶诺科技有限公司 Intelligent welding control device and system
CN120170220A (en) * 2025-04-27 2025-06-20 扬州进扬耐热钢有限公司 A reheat boiler martensitic heat-resistant steel welding device and method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102211240A (en) * 2010-04-09 2011-10-12 中国海洋石油总公司 Welding tractor with steel structure being subjected to gas shielded welding
CN102179600B (en) * 2011-04-20 2012-12-05 西安长庆科技工程有限责任公司 Submerged automatic arc welding wire conveying system
CN102179600A (en) * 2011-04-20 2011-09-14 西安长庆科技工程有限责任公司 Submerged automatic arc welding wire conveying system
CN102672312B (en) * 2012-04-20 2015-12-09 无锡市迪索数控焊接设备有限公司 A kind of large wire tray automatic Tubesheet bonding machine
CN102672312A (en) * 2012-04-20 2012-09-19 无锡市迪索数控焊接设备有限公司 Automatic tube plate welding machine with large wire disc
CN103231158A (en) * 2013-05-07 2013-08-07 南通大力化工设备有限公司 Submerged arc automatic welding device special for tube pot
CN104551358A (en) * 2014-12-19 2015-04-29 福建省马尾造船股份有限公司 Extra-fine filament slag gas submerged arc welding process and equipment for implementing same
CN105983770A (en) * 2015-02-05 2016-10-05 长沙华恒机器人系统有限公司 Submerged-arc welding system for internal circumferential joint of outer container of LNG low-temperature tanker
CN104874903A (en) * 2015-05-20 2015-09-02 河南省恒远起重机械集团有限公司 Self-travelling type submerged-arc welding trolley
CN105252113A (en) * 2015-11-18 2016-01-20 沈阳大学 Automatic welding walk car of inner ring welding line
CN111545869A (en) * 2020-07-13 2020-08-18 常州凯特工业机器人有限公司 Five-axis welding robot
CN118527783A (en) * 2024-07-24 2024-08-23 南京轶诺科技有限公司 Intelligent welding control device and system
CN120170220A (en) * 2025-04-27 2025-06-20 扬州进扬耐热钢有限公司 A reheat boiler martensitic heat-resistant steel welding device and method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHENGDU HANYAN WEIDA TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: CHENGDU HANYAN WEIDA AUTOMATIC WELDING EQUIPMENT CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Qingbaijiang District of Sichuan city in Chengdu province 610032 China JINDA Road No. 388 Chengdu Hanyan Weida automatic welding equipment Co. Ltd.

Patentee after: Chengdu Hanyan Weida Technology Co., Ltd.

Address before: Qingbaijiang District of Sichuan city in Chengdu province 610032 China JINDA Road No. 388 Chengdu Hanyan Weida automatic welding equipment Co. Ltd.

Patentee before: Chengdu Hanyan Weida Automatic Welding Equipment CO., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090304

Termination date: 20101226