CN205363143U - Outdoor pipeline welding frock - Google Patents
Outdoor pipeline welding frock Download PDFInfo
- Publication number
- CN205363143U CN205363143U CN201521074529.4U CN201521074529U CN205363143U CN 205363143 U CN205363143 U CN 205363143U CN 201521074529 U CN201521074529 U CN 201521074529U CN 205363143 U CN205363143 U CN 205363143U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- welding
- welding tooling
- installing rack
- fixing clamp
- 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
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Abstract
The utility model provides an outdoor pipeline welding frock, include: left side mounting bracket, right mounting bracket and connecting rod, left side mounting bracket setting is in the connecting rod left side, and right mounting bracket setting is on the connecting rod right side, left side mounting bracket includes base, lift post and activity mounting, the base is provided with two, is provided with the lift post on the base. The utility model discloses a regulation of lifter makes two pipelines align, then carries out effectual welding, reinforcing plate on two mounting brackets passes through the connecting rod to be connected, realizes like this that support that two mounting brackets can be stable on ground, prevents to install to empting one side under the uneven condition of atress, increases the stability among the welding process, through using this kind of welding frock, reduced welder's intensity of labour, welder in time collides the pipeline many times when preparing the welding construction, can guarantee also that two pipelines align, and the dislocation changes minimumly, has guaranteed welded efficiency and quality.
Description
Technical field
This utility model relates to welding technology field, especially relates to a kind of outdoor pipe welding tooling.
Background technology
Weld also referred to as welding, connect, be manufacturing process and the technology of a kind of jointing metal or other thermoplastics such as plastics in the way of heating, high temperature or high pressure.The purpose of joint is reached in welding by following three approach:
Heating is intended to the workpiece of joint so as to be partially melting to form molten bath, just engages after the cooled and solidified of molten bath, can add molten thing of filling out if desired and assist；
The solder that independent fieWtiiltiie is relatively low, it is not necessary to fusing workpiece itself, the capillarity by means of solder connects workpiece；
Be aided with high pressure at the temperature equal to or below workpiece fusing point, overlapping extrusion molding or vibration etc. make to interpenetrate joint between two workpiece.
According to concrete welding procedure, welding can be subdivided into other special welding such as gas welding, electric resistance welding, arc welding, induction welding and laser weld.
The energy source of welding has a variety of, including gas flame, electric arc, laser, electron beam, friction and ultrasound wave etc..Except using in the factory, welding can also carry out in a variety of contexts, such as field, under water and space.No matter wherein, welding is all likely to bring danger to operator, so must take suitable safeguard procedures when welding.Welding the injury being likely to result in human body, to include burn, electric shock, inpairment of vision, suction toxic gas, ultraviolet radiation excessive etc..
Machine-building process is used for fixing processing object, so as to occupy correct position, to accept construction or the device of detection, also known as fixture.In a broad sense, any operation in technical process, it is used for installing rapidly, easily and safely the device of workpiece, all can be described as fixture.Such as weld jig, inspection jig, assembling jig, jig etc..Wherein jig is most commonly seen, is often simply called fixture.On lathe during processing work, drawing specifies in order to make the surface of workpiece to reach dimensions, geometry and with the technology requirements such as the relative-position error on other surfaces, workpiece must be installed before processing, clip.Fixture is generally by setting element, clamping device, form cutter induction element, indexing means, connecting element and clamp body etc..
Weld jig is the fixture being welded and fixed, compress, positioning of a set of flexibility.It is mainly used in welding the welding of various weldable material, the welding of large, medium and small shaped material.The production of small batch.Three-dimension flexible welding tooling is widely used in welding and the detection systems such as steel construction, various automobile body manufacture, track traffic welding, bicycle motorcycle manufacture, engineering machinery, framework and casing, pressure vessel, robot welding, panel beating, metal furniture, equipment assembling, industrial pipeline.
In the wild in the process of Pipe installing, it is necessary to by two pipeline weldings together, such guarantee has good seal, and out of doors various Pipe installing time, the pipeline of minor diameter in welding process, welding personnel can well by pipeline to it, carry out effective high-quality welding；When the pipeline welding big in quality, diameter is big, the welding of two pipelines and alignment are exactly a problem, need bigger workload and time, and in the process of later stage welding, again encounter pipeline dislocation also easily occurs, cause that the pipeline welding out is inefficient, it is necessary to carry out better welding and ensure its air-tightness.
Welding tooling can effectively ensure that efficiency and the quality of pipeline welding, in order to tackle the pipeline welding of open air, it is necessary to a kind of that can adapt to open air and the frock that can improve welding efficiency and quality better.
Utility model content
The purpose of this utility model is in that to provide a kind of outdoor pipe welding tooling, and to solve in the Pipe installing out of doors existed in prior art, the pipeline of appearance not easily aligns, the technical problem such as pipeline easily dislocation in welding process.
A kind of outdoor pipe welding tooling that this utility model provides, including: left installing rack, right installing rack and connecting rod；Left installing rack is arranged on the left of connecting rod, and right installing rack is arranged on the right side of connecting rod；
Left installing rack includes base, lifting column and movable fixture；Base is provided with two, is provided with lifting column on base, is provided with gripper shoe on lifting column, and lower end, gripper shoe both sides is connected to lifting column；Movable fixation clamp is arranged on the supporting plate；
Left installing rack and right installing rack are symmetricly set in connecting rod, and connecting rod realizes left installation and just likes the connection with right installation.
Further, lifting column is provided with moving casing, moving casing is provided with reinforcement plate, add the overall intensity of left installing rack.
Further, strengthen plate two ends and be respectively hinged on the moving casing on two lifting columns；Strengthen plate above-below direction and be hinged on moving casing, so when ground is uneven, also can normally use welding tooling.
Further, strengthen plate arranges perforation, for the traverse of connecting rod, thus realizing left installing rack and the connection of right installing rack.
Further, connecting rod two ends are provided with fixing nut, strengthen plate and are arranged between two fixing nuts；Fixing nut is arranged on the outside strengthening plate, solid for reinforcement plate range of activity is fixed between two fixing nuts.
Further, movable fixture includes Duct fixing clamp and lower Duct fixing clamp, and lower Duct fixing clamp is arranged on the supporting plate, and movable fixation clamp is used for pipeline by itself and other pipe alignment.
Further, the left and right sides of upper Duct fixing clamp and lower Duct fixing clamp is provided with connected unit, and connected unit is used for connecting Duct fixing clamp and lower Duct fixing clamp to reach the fixing purpose clamping pipeline.
Further, connected unit being provided with adjusting bolt, adjusting bolt connects the connected unit of upper Duct fixing clamp and lower Duct fixing clamp, it is achieved the connection of upper Duct fixing clamp and lower Duct fixing clamp.
Further, the adjusting bolt that movable fixture both sides are arranged being provided with adjusting nut, adjusting nut rotates in adjusting bolt, the distance of the connected unit being achieved in that on Duct fixing clamp and lower Duct fixing clamp, it is achieved the movable fixation clamp clamping degree to pipeline.
Further, two adjusting bolts are respectively arranged with an adjusting nut and two adjusting nuts, in adjusting bolt, the adjusting nut in the connection of setting and lower Duct fixing clamp, another adjusting nut and another adjusting bolt is for the adjustment to movable fixation clamp degree of tightness.
This utility model provide a kind of outdoor pipe welding tooling on left installing rack and right installing rack on support different pipelines respectively, by the adjustment of elevating lever, enable two pipelines to align, then effectively weld；Reinforcement plate on two installing racks is connected by connecting rod, is achieved in that what two installing racks can be stable is supported on ground, it is prevented that be arranged on and topple over to side when unbalance stress, increases the stability in welding process；By using this welding tooling, reducing the labor intensity of welding personnel, welding personnel is when preparing welding procedure, and timely multiple impacts, to pipeline, also can guarantee that two pipe alignment, and variations in skews is minimum, it is ensured that the efficiency of welding and quality.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The axonometric chart of a kind of outdoor pipe welding tooling that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the front view of a kind of outdoor pipe welding tooling shown in Fig. 1；
Fig. 3 is the right view of a kind of outdoor pipe welding tooling shown in Fig. 1；
Fig. 4 is the top view of a kind of outdoor pipe welding tooling shown in Fig. 1；
Accompanying drawing labelling:
The left installing rack of 1-；The right installing rack of 2-；3-connecting rod；
301-fixes nut；4-strengthens plate；401-bores a hole；
5-gripper shoe；The upper Duct fixing clamp of 6-；Duct fixing clamp under 601-；
602-connected unit；7-adjusting bolt；8-adjusting nut；
9-lifting column；10-base；11-moving casing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only for descriptive purposes, and it is not intended that indicate or hint relative importance.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.
The axonometric chart of a kind of outdoor pipe welding tooling that Fig. 1 provides for this utility model embodiment；Fig. 2 is the front view of a kind of outdoor pipe welding tooling shown in Fig. 1；Fig. 3 is the right view of a kind of outdoor pipe welding tooling shown in Fig. 1；Fig. 4 is the top view of a kind of outdoor pipe welding tooling shown in Fig. 1；As Figure 1-4, a kind of outdoor pipe welding tooling that the present embodiment provides, including: left installing rack 1, right installing rack 2 and connecting rod 3；Left installing rack 1 is arranged on the left of connecting rod 3, and right installing rack 2 is arranged on the right side of connecting rod 3；
Left installing rack 1 includes base 10, lifting column 9 and movable fixture；Base 10 is provided with two, is provided with lifting column 9 on base 10, is provided with gripper shoe 5 on lifting column 9, and lower end, gripper shoe 5 both sides is connected to lifting column 9；Movable fixation clamp is arranged in gripper shoe 5；
Left installing rack 1 is symmetricly set in connecting rod 3 with right installing rack 2.
Wherein, the connected mode of base 10 and lifting column 9 can be multiple, and base 10 can fixing with lifting column 9 be connected, for instance welding etc.；Can also for removably connecting between base 10 and lifting column 9, for instance be attached by bolt and nut.
The connected mode of lifting column 9 and gripper shoe 5 can be multiple, and lifting column 9 can fixing with gripper shoe 5 be connected, for instance welding etc.；Can also for removably connecting between lifting column 9 and gripper shoe 5, for instance be attached by bolt and nut.
At a kind of outdoor pipe welding tooling that the present embodiment provides, lifting column 9 upper end is welded with gripper shoe 5, and lower end is welded with base 10；The sliding fixation clamp arranged in gripper shoe 5 is used for fixing pipeline；Along with the lifting of lifting column 9 regulates gripper shoe 5 height, it is achieved the adjustment to the height of pipeline.
As in figure 2 it is shown, on above-described embodiment basis, further, lifting column 9 is provided with moving casing 11, moving casing 11 is provided with reinforcement plate 4.
In the present embodiment, moving casing 11 is two, is respectively fitted on two lifting columns 9 on left installing rack 1, has reinforcement plate 4 to connect, so can increase reliability and the weight capacity of entirety between two moving casings 11；Moving casing 11 can move on lifting column 9, so on ground loosely time, moving casing 11 is highly improved, ensure entirety stable firmly.
On above-described embodiment basis, further, strengthen plate 4 two ends and be hinged on the moving casing 11 on two lifting columns 9 respectively up and down.
In the present embodiment, strengthen plate about 4 and be hinged on moving casing 11, so ensure when ground is rugged, base 10 is not on a height, two such moving casing 11 is difficult on a height, so strengthen the hinged moving casing 11 of plate about 4, it becomes possible to the rotation at above-below direction realizes the adjustment to location dislocation.
As it is shown in figure 1, on the above embodiments basis, further, strengthen plate 4 arranges perforation 401.
In the present embodiment, perforation 401 is arranged on reinforcement plate 4 centre position, and the perforation 401 on plate 4 is strengthened in connecting rod 3 traverse, it is achieved the installation of left installing rack 1 and right installing rack 2.
As shown in Figure 2 and Figure 3, on above-described embodiment basis, further, connecting rod 3 two ends are provided with fixing nut 301, strengthen plate 4 and are arranged between two fixing nuts 301.
In the present embodiment, connecting rod 3 is provided with screw thread, screw thread is arranged on the two ends of connecting rod 3, and fixing nut 301 is arranged on the two ends of connecting rod 3, and the plate 4 of strengthening on left installing rack 1 and right installing rack 2 passes through in the region that connecting rod 3 is fixed in connecting rod 3 between two fixing nuts 301；In movable fixation clamp is provided with pipeline, ensure that whole device will not tilt laterally by connecting rod 3；Such pipeline is when docking, and the spacing between pipeline and pipeline can control in allowed limits.
As in figure 2 it is shown, on the basis of above-described embodiment, further, movable fixture includes Duct fixing clamp 6 and lower Duct fixing clamp 601, and lower Duct fixing clamp 601 is arranged in gripper shoe 5.
Wherein, the connected mode of lower Duct fixing clamp 601 and gripper shoe 5 has various ways, and the connected mode of lower fixation clamp and gripper shoe 5 can be fixing connection, such as welds, it is also possible to for dismountable connected mode, such as buckle.
In the present embodiment, gripper shoe 5 is welded on lifting column 9, lifts along with the lifting of lifting column 9, gripper shoe 5 is welded with lower Duct fixing clamp 601, after pipeline is placed on lower Duct fixing clamp 601, upper Duct fixing clamp 6 is installed on upper Duct fixing clamp 6, thus realizing fixing pipeline.
As shown in Figure 1, Figure 2, Figure 4 shows, on the basis of above-described embodiment, further, the left and right sides of upper Duct fixing clamp 6 and lower Duct fixing clamp 601 is provided with connected unit 602；Being provided with adjusting bolt 7 in connected unit 602, adjusting bolt 7 connects the connected unit 602 of upper Duct fixing clamp 6 and lower Duct fixing clamp 601.
In this embodiment, upper Duct fixing clamp 6 and lower Duct fixing clamp 601 are all semicircle, and upper Duct fixing clamp 6 and lower Duct fixing clamp 601 just form a circle, are enclosed within pipeline, it is achieved fixing pipeline.
Upper Duct fixing clamp 6 and lower Duct fixing clamp 601 two ends are provided with connected unit 602, by adjusting bolt 7, upper Duct fixing clamp 6 and lower Duct fixing clamp 601 connected unit 602 are fixed together, it is achieved the connection of upper Duct fixing clamp 6 and lower Duct fixing clamp 601.
On the basis of above-described embodiment, further, the adjusting bolt 7 that movable fixture both sides are arranged is provided with adjusting nut 8.
In the present embodiment, the adjusting bolt 7 arranged on upper Duct fixing clamp 6 and lower Duct fixing clamp 601 is provided with adjusting nut 8, by adjusting nut 8 regulate in adjusting bolt 7 realization on Duct fixing clamp 6 and the adjustment to the tightness that pipeline clamps of the lower Duct fixing clamp 601, thus realizing fixing pipeline, and convenient installation.
As shown in Figure 1-Figure 3, on the basis of above-described embodiment, further, two adjusting bolts 7 are respectively arranged with an adjusting nut 8 and two adjusting nuts 8.
In the present embodiment, the nut number in adjusting bolt 7 arranged on movable fixation clamp is different；One of them adjusting bolt 7 has two adjusting nuts 8, and uppermost adjusting nut 8, owing to being of little use or the mode such as welding, makes adjusting nut 8 not easily rotate in the top of adjusting bolt 7；So ensure that Duct fixing clamp 6 and lower Duct fixing clamp 601 have one end to be connected together all the time, every time when in use, by Pipe installing on lower Duct fixing clamp 601, upper Duct fixing clamp 6 rotates to above pipeline from side, is connected with the connected unit 602 of the other end of lower Duct fixing clamp 601.
The tightness that next adjusting nut 8 in the adjusting bolt 7 having two adjusting nuts 8 and the adjusting nut 8 in another adjusting bolt 7 connect for Duct fixing clamp on regulating 6 and lower Duct fixing clamp 601.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of this utility model.
Claims (10)
1. an outdoor pipe welding tooling, it is characterised in that including: left installing rack, right installing rack and connecting rod；Described left installing rack is arranged on the left of described connecting rod, and described right installing rack is arranged on the right side of connecting rod；
Described left installing rack includes base, lifting column and movable fixture；Described base is provided with two, is provided with described lifting column on described base, is provided with gripper shoe on described lifting column, and lower end, described gripper shoe both sides is connected to lifting column；Described movable fixation clamp is arranged in described gripper shoe；
Described left installing rack and right installing rack are symmetricly set in connecting rod.
2. a kind of outdoor pipe welding tooling according to claim 1, it is characterised in that: described lifting column is provided with moving casing, described moving casing is provided with reinforcement plate.
3. a kind of outdoor pipe welding tooling according to claim 2, it is characterised in that: described reinforcement plate two ends are respectively hinged on the moving casing on said two lifting column.
4. a kind of outdoor pipe welding tooling according to claim 3, it is characterised in that: described reinforcement plate arranges perforation.
5. a kind of outdoor pipe welding tooling according to claim 2-4 any one, it is characterised in that: described connecting rod two ends are provided with fixing nut, and described reinforcement plate is arranged between two fixing nuts.
6. a kind of outdoor pipe welding tooling according to claim 1-4 any one, it is characterised in that: described movable fixture includes Duct fixing clamp and lower Duct fixing clamp, and described lower Duct fixing clamp is arranged in described gripper shoe.
7. a kind of outdoor pipe welding tooling according to claim 6, it is characterised in that: the left and right sides of fixed pipe clamp and described lower Duct fixing clamp is provided with connected unit.
8. a kind of outdoor pipe welding tooling according to claim 7, it is characterised in that: being provided with adjusting bolt in described connected unit, described adjusting bolt connects the connected unit of fixed pipe clamp and described lower Duct fixing clamp.
9. a kind of outdoor pipe welding tooling according to claim 8, it is characterised in that: the adjusting bolt that described movable fixture both sides are arranged is provided with adjusting nut.
10. a kind of outdoor pipe welding tooling according to claim 9, it is characterised in that: said two adjusting bolt is respectively arranged with an adjusting nut and two adjusting nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074529.4U CN205363143U (en) | 2015-12-18 | 2015-12-18 | Outdoor pipeline welding frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521074529.4U CN205363143U (en) | 2015-12-18 | 2015-12-18 | Outdoor pipeline welding frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205363143U true CN205363143U (en) | 2016-07-06 |
Family
ID=56259677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521074529.4U Expired - Fee Related CN205363143U (en) | 2015-12-18 | 2015-12-18 | Outdoor pipeline welding frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205363143U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945507A (en) * | 2016-07-27 | 2016-09-21 | 邬宏敏 | Pipeline fixing welding method in building construction |
| CN106271356A (en) * | 2016-08-31 | 2017-01-04 | 洛阳鹏起实业有限公司 | Revolving body positioning fixture for welding |
| CN107269931A (en) * | 2017-06-05 | 2017-10-20 | 中国石油天然气股份有限公司 | Long distance pipeline straight length changes pipe servicing unit |
| CN107322226A (en) * | 2017-08-18 | 2017-11-07 | 重庆盛学科技有限公司 | A kind of multi-functional clamp platform |
| WO2018152959A1 (en) * | 2017-02-23 | 2018-08-30 | 南通永大管业股份有限公司 | Auxiliary clamp for iron pipe welding |
| CN109570895A (en) * | 2018-12-27 | 2019-04-05 | 广东省工业设备安装有限公司 | A kind of pipeline alignment and fixation device |
| CN109590666A (en) * | 2019-02-14 | 2019-04-09 | 安徽江淮专用汽车有限公司 | Watering vehicle tank tailor-welding tool |
| CN110039232A (en) * | 2019-05-29 | 2019-07-23 | 广东技术师范大学 | A kind of industrial welding robot |
| CN110778792A (en) * | 2019-09-23 | 2020-02-11 | 中国二十冶集团有限公司 | Pipeline butt joint device and pipeline butt joint method |
| CN111788004A (en) * | 2018-03-16 | 2020-10-16 | 克磊镘有限公司 | Processing machine |
| CN113714730A (en) * | 2020-06-05 | 2021-11-30 | 日照亚创电子科技有限公司 | Special clamping and fixing device for welding heating and ventilation pipeline |
-
2015
- 2015-12-18 CN CN201521074529.4U patent/CN205363143U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945507A (en) * | 2016-07-27 | 2016-09-21 | 邬宏敏 | Pipeline fixing welding method in building construction |
| CN105945507B (en) * | 2016-07-27 | 2018-08-07 | 广州石化华穗工程有限公司 | Pipeline fixes welding method in a kind of construction |
| CN106271356A (en) * | 2016-08-31 | 2017-01-04 | 洛阳鹏起实业有限公司 | Revolving body positioning fixture for welding |
| WO2018152959A1 (en) * | 2017-02-23 | 2018-08-30 | 南通永大管业股份有限公司 | Auxiliary clamp for iron pipe welding |
| CN107269931A (en) * | 2017-06-05 | 2017-10-20 | 中国石油天然气股份有限公司 | Long distance pipeline straight length changes pipe servicing unit |
| CN107322226A (en) * | 2017-08-18 | 2017-11-07 | 重庆盛学科技有限公司 | A kind of multi-functional clamp platform |
| CN111788004A (en) * | 2018-03-16 | 2020-10-16 | 克磊镘有限公司 | Processing machine |
| CN109570895A (en) * | 2018-12-27 | 2019-04-05 | 广东省工业设备安装有限公司 | A kind of pipeline alignment and fixation device |
| CN109590666A (en) * | 2019-02-14 | 2019-04-09 | 安徽江淮专用汽车有限公司 | Watering vehicle tank tailor-welding tool |
| CN110039232A (en) * | 2019-05-29 | 2019-07-23 | 广东技术师范大学 | A kind of industrial welding robot |
| CN110778792A (en) * | 2019-09-23 | 2020-02-11 | 中国二十冶集团有限公司 | Pipeline butt joint device and pipeline butt joint method |
| CN113714730A (en) * | 2020-06-05 | 2021-11-30 | 日照亚创电子科技有限公司 | Special clamping and fixing device for welding heating and ventilation pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20171218 |