CN201067835Y - H-type steel welding machine - Google Patents
H-type steel welding machine Download PDFInfo
- Publication number
- CN201067835Y CN201067835Y CNU2007200935705U CN200720093570U CN201067835Y CN 201067835 Y CN201067835 Y CN 201067835Y CN U2007200935705 U CNU2007200935705 U CN U2007200935705U CN 200720093570 U CN200720093570 U CN 200720093570U CN 201067835 Y CN201067835 Y CN 201067835Y
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- pinch roller
- slide plate
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Abstract
An H-shaped steel welding machine belongs to the welding equipment field in the mechanical field. In order to solve the defects of the existing equipment, the utility model provides an H-shaped steel welding machine which can finish the double side welding of H-shaped steel by one assembly line work. The utility model is provided with roll wheels on a stander from head to end and the roll wheels are connected with an electric motor by a chain; a welding tyre is arranged at the most front end of the stander, and two main welding machines arranged at the middle part of the stander; the side of each main welding machine is provided with an operation platform; a tipper is arranged on the stander between two main welding machines; wherein, the main welding machine is internally provided with a wing plate righting assembly, a ventral shield righting assembly, a top wheel mechanism, a middle slid plate transmission mechanism, a pressing wheel transmission mechanism, a welding machine mechanism and a lateral wall wheel mechanism. The utility model has the advantage that the using efficiency and the degree of automation are improved. Due to the special design, the two H-shaped steels can assemble and mould a welding device after welding at one time simultaneously.
Description
Technical field:
The utility model belongs to field of welding devices in the mechanical field.
Background technology:
At present, H shaped steel is used more extensive at each industrial circle, and estimate that future market prospect is also more wide, however the manpower manual welding is also adopted in the welding job of the processing of more existing H shaped steel, and inefficiency wastes time and energy, and existing some welding equipments that also exist, but weld the only one side of welded H section steel, and the welding another side needs repetitive operation at every turn, can not one-shot forming, cause production efficiency low, can not satisfy existing supply of material demand.
Summary of the invention:
In order to address the above problem, the utility model provides a kind of pipelining of passing through, and can finish the H shaped steel bonding machine of the two-sided welding of H shaped steel.
The utility model structure is:
A, running roller is installed from the beginning to the end on frame, running roller is connected with motor by chain, in frame the welding tire is installed foremost, and two welding main frames are installed in the middle of frame, each welding main frame next door all is equipped with operating desk, on the frame between two welding main frames tipper is installed;
B, on welding main frame top the scolder tube is installed, the welding head that each scolder tube is corresponding with the lower end respectively connects by two flexible pipes; Be equipped with on the frame of welding main frame inside that wing plate is set upright assembly and web is set upright assembly, wing plate is set upright assembly by the handwheel adjustment, sets upright to be equipped with on the assembly at web and sets upright running roller;
C, top wheel mechanism, middle slide plate transmission mechanism, pinch roller transmission mechanism, welding machine mechanism and sidewall wheel mechanism are installed in welding main frame inside;
D, top wheel mechanism: the interior lower end at the welding main frame is equipped with top wheel, and lower end of each top wheel is installed with tooth bar, tooth bar the top wheel assembly inner with top turbin generator axle on gears engaged;
E, middle slide plate transmission mechanism: middle slide plate is suspended on the slide rail that welds on the main frame by the middle slide plate slide block, on middle slide plate, be installed with side running roller motor and side running roller frame, the side rolling axle is connected on the side running roller frame, the side running roller pass side running roller frame the axle on gear is installed, gear is meshed with hard-wired gear on the side running roller motor shaft; The middle slide plate top is connected with the middle slide plate cylinder by the middle slide plate air cylinder connecting rod, and the middle slide plate cylinder is fixedly mounted on the welding main frame; Movable gun rack also is installed on middle slide plate, and welding gun is installed on the gun rack;
F, pinch roller transmission mechanism: on the pinch roller motor shaft leading screw is installed, the pinch roller slide block is suspended on the slide rail, and the pinch roller slide block is connected with threads of lead screw, and the pinch roller cylinder is installed on the pinch roller slide block, on the piston rod of pinch roller cylinder pinch roller frame is installed, pinch roller is installed on the pinch roller frame;
G, welding gun mechanism: the welding gun fixed mount is fixed on the welding machine main frame, and the welding gun travelling carriage is inserted on the welding gun fixed mount, and the welding gun leading screw passes on the side wing of welding gun fixed mount and welding gun travelling carriage, and welding gun is installed on the welding gun travelling carriage;
H, sidewall wheel mechanism: the sidewall wheel carrier is fixedly mounted on the welding machine main frame, and the sidewall wheel shaft is connected on the sidewall wheel carrier, and the lower end that the axle of sidewall wheel passes the sidewall wheel carrier is equipped with gear, and the gears engaged on this gear and the sidewall turbin generator axle.
The utility model service efficiency improves; Automaticity improves, and a kind of two H shaped steel of ad hoc meter are the disposable group of welding equipment that upright moulding welding finishes simultaneously.It has replaced upright machine of group and inspection machine, is that group is stood, welds, proofreaied and correct in the modernized full automatic welding of one and meet sb. at the airport.Its main processes is: group stand-weld-is automatically turned over turnback-welding-correction.It is made up of two main frames, tipper, inspection machine and roller-ways, all adopts roller-way to be connected between main frame and tipper, tipper and main frame, main frame and the inspection machine.Every main frame four is welding gun, and the synchronous processing of two H shaped steel is finished, and then continuous operation.82 meters of its equipment total lengths, wide 4 meters, high 2.6 meters.Production efficiency is compared than single H shaped steel welding can be improved more than 4 times, and the cost of this machine has descended more than 30%.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model Fig. 1 main machine structure left view;
Fig. 3 is the utility model Fig. 1 vertical view.
The specific embodiment:
The utility model concrete structure is:
A, running roller 2 is installed from the beginning to the end on frame, running roller 2 is connected with motor by chain 1, in frame welding tire 3 is installed foremost, and two welding main frames 4 are installed in the middle of frame, each welding main frame 4 next door all is equipped with operating desk 26, and tipper 27 is installed on the frame between two welding main frames 4;
B, on welding main frame 4 tops scolder tube 23 is installed, the welding head that each scolder tube 23 is corresponding with the lower end respectively connects by two flexible pipes; Be equipped with on the frame of welding main frame 4 inside that wing plate is set upright assembly 5 and web is set upright assembly 7, wing plate is set upright assembly 5 and is adjusted by handwheel 6, sets upright to be equipped with on the assembly 7 at web and sets upright running roller 8;
C, top wheel mechanism, middle slide plate transmission mechanism, pinch roller transmission mechanism, welding machine mechanism and sidewall wheel mechanism are installed in welding main frame 4 inside;
D, top wheel mechanism: the interior lower end at welding main frame 4 is equipped with top wheel 10, and lower end of each top wheel 10 is installed with tooth bar 20, tooth bar 20 top wheel assembly 9 inner with 29 of top turbin generators on gears engaged;
E, middle slide plate transmission mechanism: middle slide plate 15 is suspended on the slide rail 18 that welds on the main frame 4 by middle slide plate slide block 17, on middle slide plate 15, be installed with side running roller motor 16 and side running roller frame 31,19 of side running rollers are connected on the side running roller frame 31, pass at side running roller 19 on the axle of side running roller frame 31 gear 21 is installed, hard-wired gears 22 are meshed on 16 in gear 21 and the side running roller motor; Middle slide plate 15 tops are connected with middle slide plate cylinder 14 by middle slide plate air cylinder connecting rod 32, and middle slide plate cylinder 14 is fixedly mounted on the welding main frame 4; Movable gun rack 25 also is installed on middle slide plate 15, and welding gun is installed on the gun rack 25;
F, pinch roller transmission mechanism: on 28 in the pinch roller motor leading screw 35 is installed, pinch roller slide block 36 is suspended on the slide rail 18, and pinch roller slide block 36 is threaded with leading screw 35, pinch roller cylinder 11 is installed on pinch roller slide block 36, on the piston rod 12 of pinch roller cylinder 11 pinch roller frame 33 is installed, pinch roller 13 is installed on the pinch roller frame 33;
G, welding gun mechanism: welding gun fixed mount 34 is fixed on the welding machine main frame 4, and welding gun travelling carriage 24 is inserted on the welding gun fixed mount 34, and welding gun leading screw 37 passes on the side wing of welding gun fixed mount 34 and welding gun travelling carriage 24, and welding gun is installed on the welding gun travelling carriage 24;
H, sidewall wheel mechanism: sidewall wheel carrier 39 is fixedly mounted on the welding machine main frame 4,38 on sidewall wheel is connected on the sidewall wheel carrier 39, and the lower end that the axle of sidewall wheel 38 passes sidewall wheel carrier 39 is equipped with gear, and the gears engaged on 30 of this gear and the sidewall turbin generators.
The utility model course of work is:
Two blocks of wing steel plates, an abdomen steel plate are placed on the roller-way, and computer program control motor travels forward three block plates by 2 rotations of sprocket wheel 1 driving-belt action roller wheel, and operation is preceding arrives and the roll surface vertical direction with the welding 50mm of welding tire 3 elder generations.When the wing plate that enters main frame 4 positions when three block plates is set upright assembly 5, rotate wing plate and set upright handwheel 6 on the assembly 5 and make three block plates be the H type to fit.(annotate: web hold up on the high assembly 7 running roller 8 a little more than or equal running roller 10 on the top wheel assembly 9, be unlikely to perk influence welding in order to make the steel plate front end.Running roller 10 can drive tooth bar 20 by motor reducer and move up and down, and when weld width hour, liftable running roller 10, worm reduction gear 28 drives the nip drum assembly by leading screw and regulates the welding position and weld.)。When three block plates enter the pinch roller assembly, the pinch roller assembly moves downward by cylinder drive slide block and pinch roller 13 and pushes down middle abdomen steel plate, simultaneously cylinder assembly 14 stretches by cylinder and drives 2-level reducer WS50-90 assembly 16 on the middle slide plate assembly 15 and move to make on slide rail 18 by the slide block on the middle slide plate assembly 15 17 under leading screw drives and be H type three block plates and fit tightly that (the both sides 2-level reducer is fixed on the framework motionless, middle two 2-level reducers are fixed on the middle slide plate), running roller 19 on the 2-level reducer assembly 16 passes through reductor 20 by gear 21,22 transmissions drive H shaped steel are moved forward, scolder tube assembly 23 begins to send scolder, welding gun on the welding gun slip assembly is started working, automatic welding gun is by the control of PLC welding system, the welding beginning is exported by roller-way after welding is finished again.(excess solder sucks back the scolder bucket by the scolder recovery system, periodic duty, the scolder in the scolder bucket can get on to fill scolder not for a long time by the ladder on the control tower 26).Before entering second main frame, H shaped steel is turned over turnback, enter main frame and weld, export from roller-way after finishing by tipper 27.
The utility model when design according to the weight of product H shaped steel, be of a size of according to physical dimension and the technical parameter of determining welding production line.
It is firmly stable that for example the rectangle steel frame structure on the main frame 4 makes the various assemblies on the framework; Various running roller materials on the main frame adopt 40Cr through modifier treatment, and the outer round surface high-frequency quenching increases case hardness and alleviates wearing and tearing; Input running roller and output running roller adopt the seamed steel pipe φ 121 can resistance to compression, wear-resisting economical and practical again; The direct outsourcing UCP208 of rolling axle bearing.On the operating system with reductor be WS series WS30, WS50, WS50-90 etc.
Claims (1)
1. H shaped steel bonding machine is characterized in that:
A, running roller (2) is installed from the beginning to the end on frame, running roller (2) is connected with motor by chain (1), in frame welding tire (3) is installed foremost, and two welding main frames (4) are installed in the middle of frame, each welding main frame (4) next door all is equipped with operating desk (26), and tipper (27) is installed on the frame between two welding main frames (4);
B, on welding main frame (4) top scolder tube (23) is installed, the welding head that each scolder tube (23) is corresponding with the lower end respectively connects by two flexible pipes; Be equipped with on the inner frame of welding main frame (4) that wing plate is set upright assembly (5) and web is set upright assembly (7), wing plate is set upright assembly (5) by handwheel (6) adjustment, sets upright to be equipped with on the assembly (7) at web and sets upright running roller (8);
C, top wheel mechanism, middle slide plate transmission mechanism, pinch roller transmission mechanism, welding machine mechanism and sidewall wheel mechanism are installed in welding main frame (4) inside;
D, top wheel mechanism: the interior lower end at welding main frame (4) is equipped with top wheel (10), and lower end of each top wheel (10) is installed with tooth bar (20), tooth bar (20) top wheel assembly (9) inner with top turbin generator (29) axle on gears engaged;
E, middle slide plate transmission mechanism: middle slide plate (15) is suspended on the slide rail (18) that welds on the main frame (4) by middle slide plate slide block (17), on middle slide plate (15), be installed with side running roller motor (16) and side running roller frame (31), side running roller (19) axle is connected on the side running roller frame (31), side running roller (19) pass side running roller frame (31) the axle on gear (21) is installed, gear (21) is meshed with hard-wired gear (22) on side running roller motor (16) axle; Middle slide plate (15) top is connected with middle slide plate cylinder (14) by middle slide plate air cylinder connecting rod (32), and middle slide plate cylinder (14) is fixedly mounted on the welding main frame (4); Movable gun rack (25) also is installed on middle slide plate (15), and welding gun is installed on the gun rack (25);
F, pinch roller transmission mechanism: on pinch roller motor (28) axle leading screw (35) is installed, pinch roller slide block (36) is suspended on the slide rail (18), and pinch roller slide block (36) is threaded with leading screw (35), pinch roller cylinder (11) is installed on pinch roller slide block (36), on the piston rod (12) of pinch roller cylinder (11) pinch roller frame (33) is installed, pinch roller (13) is installed on the pinch roller frame (33);
G, welding gun mechanism: welding gun fixed mount (34) is fixed on the welding machine main frame (4), welding gun travelling carriage (24) is inserted on the welding gun fixed mount (34), welding gun leading screw (37) passes on the side wing of welding gun fixed mount (34) and welding gun travelling carriage (24), and welding gun is installed on the welding gun travelling carriage (24);
H, sidewall wheel mechanism: sidewall wheel carrier (39) is fixedly mounted on the welding machine main frame (4), sidewall wheel (38) axle is connected on the sidewall wheel carrier (39), and the lower end that the axle of sidewall wheel (38) passes sidewall wheel carrier (39) is equipped with gear, and the gears engaged on this gear and sidewall turbin generator (30) axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200935705U CN201067835Y (en) | 2007-04-18 | 2007-04-18 | H-type steel welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200935705U CN201067835Y (en) | 2007-04-18 | 2007-04-18 | H-type steel welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201067835Y true CN201067835Y (en) | 2008-06-04 |
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ID=39489208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200935705U Expired - Fee Related CN201067835Y (en) | 2007-04-18 | 2007-04-18 | H-type steel welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201067835Y (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039508A (en) * | 2011-01-31 | 2011-05-04 | 纪瑞星 | H-shape steel fitting up machine |
| CN101628367B (en) * | 2009-07-07 | 2011-05-18 | 天津豪钢机械工程有限公司 | H-shaped beam fitting up device and fitting up method |
| CN101590578B (en) * | 2009-06-29 | 2011-05-18 | 浙江美科斯叉车有限公司 | Welding device for gantry-shaped steel of forklift |
| CN101585125B (en) * | 2009-04-10 | 2011-06-01 | 无锡华联科技集团有限公司 | Arc guide frame device of H-type steel horizontal assembly and welding integrated machine |
| CN102335822A (en) * | 2011-10-17 | 2012-02-01 | 无锡市南方电器制造有限公司 | H-shaped steel heavy welding production line |
| CN102632311A (en) * | 2012-04-18 | 2012-08-15 | 常州市美润太阳能有限公司 | Automatic soldering machine for core of flat-plate solar panel |
| CN102837140A (en) * | 2012-09-27 | 2012-12-26 | 济南天辰铝机制造有限公司 | Turnover welding and molding production line of H profile steel |
| CN102909563A (en) * | 2012-10-26 | 2013-02-06 | 济南天辰铝机制造有限公司 | Digital control section steel sawing, drilling and welding integrated production line |
| CN102909502A (en) * | 2012-10-17 | 2013-02-06 | 安徽肯达机械科技有限公司 | Horizontal automatic assembling equipment for variable section I-beam |
| CN103407947A (en) * | 2013-08-27 | 2013-11-27 | 安徽鸿路钢结构(集团)股份有限公司 | H steel correction machine overturning device and overturning method thereof |
| CN104308439A (en) * | 2014-09-15 | 2015-01-28 | 安徽鸿路钢结构(集团)股份有限公司 | Movable H-shaped steel welding and assembling positioner |
| CN104942458A (en) * | 2015-07-13 | 2015-09-30 | 浙江协升机器人科技有限公司 | Automatic welding equipment for H-type automobile frame |
| CN105921936A (en) * | 2016-06-08 | 2016-09-07 | 徐州徐工施维英机械有限公司 | Welding production line |
| CN106270931A (en) * | 2016-08-29 | 2017-01-04 | 安徽鸿路钢结构(集团)股份有限公司 | A kind of steel structure intelligent and high-efficiency multi-wire submerged-arc welding production line |
| CN104308439B (en) * | 2014-09-15 | 2017-01-04 | 安徽鸿路钢结构(集团)股份有限公司 | Movable H profile steel welding group founds moulding bed |
| CN107309566A (en) * | 2017-07-12 | 2017-11-03 | 建科机械（天津）股份有限公司 | Welding equipment available for processing plurality of specifications H profile steel |
| CN108311807A (en) * | 2018-04-28 | 2018-07-24 | 泰安方力智能设备有限公司 | NC heavy H profile steel automated exchanged cutter welding production line |
| CN108500531A (en) * | 2018-05-25 | 2018-09-07 | 无锡市光彩机械制造有限公司 | A kind of end reinforcing plate welder of integrated-type steel moald-cavity |
| CN108568583A (en) * | 2018-06-25 | 2018-09-25 | 昆山华恒焊接股份有限公司 | H-shaped beam automatic welding process units and production method |
| CN110340561A (en) * | 2019-09-06 | 2019-10-18 | 智迈德股份有限公司 | Assembled architecture girder steel full automatic once shaping system |
| CN111168289A (en) * | 2020-01-19 | 2020-05-19 | 刘帅 | Automatic welding machine for longitudinal seam of T-shaped beam |
| CN115582668A (en) * | 2022-11-11 | 2023-01-10 | 湖南中为科建制造有限公司 | Assembly positioning device for H-shaped steel |
-
2007
- 2007-04-18 CN CNU2007200935705U patent/CN201067835Y/en not_active Expired - Fee Related
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585125B (en) * | 2009-04-10 | 2011-06-01 | 无锡华联科技集团有限公司 | Arc guide frame device of H-type steel horizontal assembly and welding integrated machine |
| CN101590578B (en) * | 2009-06-29 | 2011-05-18 | 浙江美科斯叉车有限公司 | Welding device for gantry-shaped steel of forklift |
| CN101628367B (en) * | 2009-07-07 | 2011-05-18 | 天津豪钢机械工程有限公司 | H-shaped beam fitting up device and fitting up method |
| CN102039508B (en) * | 2011-01-31 | 2013-12-18 | 纪瑞星 | H-shape steel fitting up machine |
| CN102039508A (en) * | 2011-01-31 | 2011-05-04 | 纪瑞星 | H-shape steel fitting up machine |
| CN102335822A (en) * | 2011-10-17 | 2012-02-01 | 无锡市南方电器制造有限公司 | H-shaped steel heavy welding production line |
| CN102632311A (en) * | 2012-04-18 | 2012-08-15 | 常州市美润太阳能有限公司 | Automatic soldering machine for core of flat-plate solar panel |
| CN102837140B (en) * | 2012-09-27 | 2015-02-04 | 济南天辰铝机制造有限公司 | Turnover welding and molding production line of H profile steel |
| CN102837140A (en) * | 2012-09-27 | 2012-12-26 | 济南天辰铝机制造有限公司 | Turnover welding and molding production line of H profile steel |
| CN102909502A (en) * | 2012-10-17 | 2013-02-06 | 安徽肯达机械科技有限公司 | Horizontal automatic assembling equipment for variable section I-beam |
| CN102909563A (en) * | 2012-10-26 | 2013-02-06 | 济南天辰铝机制造有限公司 | Digital control section steel sawing, drilling and welding integrated production line |
| CN103407947A (en) * | 2013-08-27 | 2013-11-27 | 安徽鸿路钢结构(集团)股份有限公司 | H steel correction machine overturning device and overturning method thereof |
| CN104308439A (en) * | 2014-09-15 | 2015-01-28 | 安徽鸿路钢结构(集团)股份有限公司 | Movable H-shaped steel welding and assembling positioner |
| CN104308439B (en) * | 2014-09-15 | 2017-01-04 | 安徽鸿路钢结构(集团)股份有限公司 | Movable H profile steel welding group founds moulding bed |
| CN104942458A (en) * | 2015-07-13 | 2015-09-30 | 浙江协升机器人科技有限公司 | Automatic welding equipment for H-type automobile frame |
| CN104942458B (en) * | 2015-07-13 | 2017-09-12 | 浙江协升机器人科技有限公司 | A kind of automatic welding equipment of H types automotive frame |
| CN105921936A (en) * | 2016-06-08 | 2016-09-07 | 徐州徐工施维英机械有限公司 | Welding production line |
| CN105921936B (en) * | 2016-06-08 | 2018-05-25 | 徐州徐工施维英机械有限公司 | A kind of subframe welding production line |
| CN106270931A (en) * | 2016-08-29 | 2017-01-04 | 安徽鸿路钢结构(集团)股份有限公司 | A kind of steel structure intelligent and high-efficiency multi-wire submerged-arc welding production line |
| CN107309566A (en) * | 2017-07-12 | 2017-11-03 | 建科机械（天津）股份有限公司 | Welding equipment available for processing plurality of specifications H profile steel |
| CN108311807A (en) * | 2018-04-28 | 2018-07-24 | 泰安方力智能设备有限公司 | NC heavy H profile steel automated exchanged cutter welding production line |
| CN108500531A (en) * | 2018-05-25 | 2018-09-07 | 无锡市光彩机械制造有限公司 | A kind of end reinforcing plate welder of integrated-type steel moald-cavity |
| CN108568583B (en) * | 2018-06-25 | 2023-08-18 | 昆山华恒焊接股份有限公司 | Automatic welding production device and production method for H-shaped beam |
| CN108568583A (en) * | 2018-06-25 | 2018-09-25 | 昆山华恒焊接股份有限公司 | H-shaped beam automatic welding process units and production method |
| CN110340561A (en) * | 2019-09-06 | 2019-10-18 | 智迈德股份有限公司 | Assembled architecture girder steel full automatic once shaping system |
| WO2021042780A1 (en) * | 2019-09-06 | 2021-03-11 | 智迈德股份有限公司 | Fully automatic one-step forming system for fabricated building steel beam |
| CN110340561B (en) * | 2019-09-06 | 2019-12-10 | 智迈德股份有限公司 | Full-automatic one shot forming system of assembled building girder steel |
| CN111168289A (en) * | 2020-01-19 | 2020-05-19 | 刘帅 | Automatic welding machine for longitudinal seam of T-shaped beam |
| CN111168289B (en) * | 2020-01-19 | 2021-07-09 | 山东水泊焊割设备制造有限公司 | Automatic welding machine for longitudinal seam of T-shaped beam |
| CN115582668A (en) * | 2022-11-11 | 2023-01-10 | 湖南中为科建制造有限公司 | Assembly positioning device for H-shaped steel |
| CN115582668B (en) * | 2022-11-11 | 2023-11-07 | 湖南中为科建制造有限公司 | H-shaped steel assembling and positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 |