CN109277696A - A kind of midget tube pipe docking laser welding point protective device - Google Patents
A kind of midget tube pipe docking laser welding point protective device Download PDFInfo
- Publication number
- CN109277696A CN109277696A CN201811266672.1A CN201811266672A CN109277696A CN 109277696 A CN109277696 A CN 109277696A CN 201811266672 A CN201811266672 A CN 201811266672A CN 109277696 A CN109277696 A CN 109277696A
- Authority
- CN
- China
- Prior art keywords
- distribution plate
- flow distribution
- outer tube
- inner sleeve
- front apron
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention proposes a kind of protective device of midget tube pipe docking laser welding point, which includes inner sleeve, outer tube, flow distribution plate, front apron, rear baffle, core pipe, gas nozzle；Front apron, rear baffle are located at the both ends of outer tube, and flow distribution plate is located inside outer tube, are located proximate to front apron, the circular hole on outer tube should be between flow distribution plate and rear baffle.Inner sleeve is coaxial with outer tube, and the circular hole aligned in position on two sets of tube walls.The both ends of inner sleeve respectively connected flow distribution plate and rear baffle.In use, pipe fitting a to be welded needs to connect together by tack welding in advance with pipe fitting b to be welded, the pipe fitting side to be welded after connection is connect with rotating mechanism, the other side is extend between the core pipe of the present apparatus and inner sleeve.Gas nozzle connect with protection gas tracheae, when welding, the present apparatus is motionless, and weldment rotation protects gas to be entered by gas nozzle, is in pipe fitting to be welded in protective atmosphere, avoids weld seam problem of oxidation when small-sized pipeline laser welding.
Description
Technical field
The present invention relates to when a kind of welding protective device, especially high temperature of midget tube pipe docking laser welding point easily
Connector protection device when the midget tube pipe fitting laser welding for the metal or alloy being oxidized.
Background technique
Oxidation reaction easily occurs at high temperature for the metal materials such as titanium alloy, molybdenum alloy, and connector is only in good when welding
Good welding point could be obtained under good protective atmosphere.It mostly uses electron beam vacuum welding to fetch at present and solves this problem.
But electron beam welding, need to be in vacuum chamber, and welding is flexible poor, at high cost.According to the laser welding for being all high energy beam welding
Technology is then no longer limited by vacuum chamber, and equipment is open more preferable, but needs to solve the protection problem of welding point, makes connector
It can be welded under good inert gas shielding atmosphere.Large-scale component generallys use protection tracheae in welding, drags cover
The protection of welding point, but small-sized pipe pipe fitting are completed in conjunction with back protection device, heat is easy to the pipeline of diffusion in welding
Surrounding is limited by structure, and traditional gas protection device is difficult to realize the omnibearing protection of connector.
Summary of the invention
A kind of laser weld protective device for being designed to provide midget tube pipe fitting of the present apparatus, makes midget tube pipe
Connector is in good inert gas shielding atmosphere in welding.
It the purpose of the present apparatus and solves its technical problem and adopts the following technical solutions to realize.The one of present apparatus proposition
The protective device of kind of midget tube pipe docking laser welding point, including inner sleeve, outer tube, flow distribution plate, front apron, rear baffle,
Seven core pipe, gas nozzle part compositions.
Outer tube, inner sleeve and the core pipe of the present apparatus are the pipeline of different-diameter.Wherein there is a circular hole on housing tube wall,
Diameter 10-15mm.It is identical as Circularhole diameter on outer tube there is a Circularhole diameter on inner sleeve tube wall, and is evenly distributed with diameter on tube wall
Venthole no more than 2mm.There is plug in core pipe side, is evenly distributed with venthole on tube wall and plug.
Front apron, rear baffle and flow distribution plate are ring-shape accessory, the outer diameter and housing pipe outside diameter phase of front apron and rear baffle
Together.The outer diameter of flow distribution plate is identical as housing bore, and uniformly distributed venthole on flow distribution plate, stomata is close to flow distribution plate outer rim.
All parts of the present apparatus use metal material, such as stainless steel.
Front apron, the rear baffle of the present apparatus are located at the both ends of outer tube, and flow distribution plate is located inside outer tube, before being located proximate to
Baffle, the circular hole on outer tube should be between flow distribution plate and rear baffle.
Inner sleeve is coaxial with outer tube, and the circular hole aligned in position on two sets of tube walls.The both ends of inner sleeve are separately connected
Flow distribution plate and rear baffle
Core pipe is located on the inside of inner sleeve, and no closure one end is connected with flow distribution plate, and core pipe tube wall is aligned with flow distribution plate centre bore.
Gas nozzle is mounted on side opposite with outer tube on front apron, is aligned with the centre bore on front apron.
The connection of above-mentioned all parts is using welded connecting.
In use, pipe fitting a to be welded needs to connect together by tack welding in advance with pipe fitting b to be welded, by after connection to
Welded tube part side is connect with rotating mechanism, and the other side is extend between the core pipe of the present apparatus and inner sleeve, welding position and outer tube
The center alignment in hole on tube wall.Gas nozzle connect with protection gas tracheae, when welding, the present apparatus is motionless, weldment rotation, protect gas by
Gas nozzle enters, and is entered between internal and external casing and inside core pipe by flow distribution plate, is reached by the venthole on inner sleeve and core pipe
It near pipeline welding position, is in pipe fitting to be welded in protective atmosphere, avoids weld seam oxidation when small-sized pipeline laser welding
Problem.
Detailed description of the invention
Fig. 1 protective device mechanism (containing weldment) cross-sectional view；
Fig. 2 flow distribution plate schematic diagram；
1- inner sleeve；2- outer tube；3- flow distribution plate；4- front apron；5- gas nozzle；6- core pipe；7- pipe fitting a to be welded；8- is to be welded
Pipe b；9- rear baffle.
Specific embodiment
The present apparatus is described further below by example:
The present apparatus propose a kind of midget tube pipe docking laser welding point protective device, including inner sleeve, outer tube,
Seven flow distribution plate, front apron, rear baffle, core pipe, gas nozzle part compositions.
Outer tube, inner sleeve and the core pipe of the present apparatus are the pipeline of different-diameter.Wherein there is a circular hole on housing tube wall,
Diameter 10-15mm.It is identical as Circularhole diameter on outer tube there is a Circularhole diameter on inner sleeve tube wall, and is evenly distributed with diameter on tube wall
Venthole no more than 2mm.There is plug in core pipe side, is evenly distributed with venthole on tube wall and plug.The center of venthole is away from can be
1.5 times of hole diameter.
Front apron, rear baffle and flow distribution plate are ring-shape accessory, the outer diameter and housing pipe outside diameter phase of front apron and rear baffle
Together.The outer diameter of flow distribution plate is identical as housing bore, and uniformly distributed venthole on flow distribution plate, venthole is close to flow distribution plate outer rim, diameter
3mm。
All parts of the present apparatus use metal material, such as stainless steel.
Front apron, the rear baffle of the present apparatus are located at the both ends of outer tube, and flow distribution plate is located inside outer tube, before being located proximate to
Baffle, the circular hole on outer tube should be between flow distribution plate and rear baffle.
Inner sleeve is coaxial with outer tube, and the circular hole aligned in position on two sets of tube walls.The both ends of inner sleeve are separately connected
Flow distribution plate and rear baffle.
Core pipe is located on the inside of inner sleeve, and no closure one end is connected with flow distribution plate, and core pipe tube wall is aligned with flow distribution plate centre bore.
Gas nozzle is mounted on side opposite with outer tube on front apron, is aligned with the centre bore on front apron.
The connection of above-mentioned all parts is using welded connecting.
In use, pipe fitting a to be welded needs to connect together by tack welding in advance with pipe fitting b to be welded, by after connection to
Welded tube part side is connect with rotating mechanism, and the other side is extend between the core pipe of the present apparatus and inner sleeve, welding position and outer tube
The center alignment in hole on tube wall.Gas nozzle connect with protection gas tracheae, when welding, the present apparatus is motionless, weldment rotation, protect gas by
Gas nozzle enters, and is entered between internal and external casing and inside core pipe by flow distribution plate, is reached by the venthole on inner sleeve and core pipe
It near pipeline welding position, is in pipe fitting to be welded in protective atmosphere, avoids weld seam oxidation when small-sized pipeline laser welding
Problem.
Claims (1)
1. a kind of protective device of midget tube pipe docking laser welding point, which is characterized in that including inner sleeve, outer tube, divide
Flowing plate, front apron, rear baffle, core pipe, gas nozzle；All parts use metal material, and outer tube, inner sleeve and core pipe are Bu Tong straight
The pipeline of diameter, wherein there is a circular hole on housing tube wall, diameter 10-15mm, has a Circularhole diameter and housing on inner sleeve tube wall
Circularhole diameter is identical on pipe, and the venthole that diameter is not more than 2mm is evenly distributed on tube wall, and there is a plug in core pipe side, tube wall and stifled
Venthole is evenly distributed on head, front apron, rear baffle and flow distribution plate are ring-shape accessory, the outer diameter and housing of front apron and rear baffle
Pipe outside diameter is identical.The outer diameter of flow distribution plate is identical as housing bore, and uniformly distributed venthole on flow distribution plate, stomata is outside flow distribution plate
Edge, front apron, rear baffle are located at the both ends of outer tube, and flow distribution plate is located inside outer tube, are located proximate to front apron, on outer tube
Circular hole should be between flow distribution plate and rear baffle, inner sleeve is coaxial with outer tube, and the circular hole position pair on two sets of tube walls
Together, the both ends of inner sleeve respectively connected flow distribution plate and rear baffle, and core pipe is located on the inside of inner sleeve, no closure one end and flow distribution plate
It is connected, core pipe tube wall is aligned with flow distribution plate centre bore, and gas nozzle is mounted on side opposite with outer tube on front apron, with front apron
On centre bore alignment, the connections of all parts is using being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266672.1A CN109277696A (en) | 2018-10-29 | 2018-10-29 | A kind of midget tube pipe docking laser welding point protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266672.1A CN109277696A (en) | 2018-10-29 | 2018-10-29 | A kind of midget tube pipe docking laser welding point protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109277696A true CN109277696A (en) | 2019-01-29 |
Family
ID=65178073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266672.1A Pending CN109277696A (en) | 2018-10-29 | 2018-10-29 | A kind of midget tube pipe docking laser welding point protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109277696A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020017504A1 (en) * | 2000-07-07 | 2002-02-14 | Daido Tokushuko Kabushiki Kaisha | Gas shielded arc welding method |
| JP2004105994A (en) * | 2002-09-17 | 2004-04-08 | Hitachi Ltd | Welding method for tube and infusing nozzle for shielding gas for welding |
| CN2905302Y (en) * | 2006-01-18 | 2007-05-30 | 北京工业大学 | Protective nozzle for laser welding |
| CN200991803Y (en) * | 2006-12-26 | 2007-12-19 | 中国石油兰州石油化工公司 | Pipe welding protection device |
| CN201346660Y (en) * | 2009-01-01 | 2009-11-18 | 阮继成 | Gas shielded welding device with tube air-charging device |
| JP2013146771A (en) * | 2012-01-20 | 2013-08-01 | Mitsubishi Heavy Ind Ltd | Back shield device for welding |
| CN203791810U (en) * | 2013-10-25 | 2014-08-27 | 东方电气（武汉）核设备有限公司 | Back face gas protection device for girth welding of barrel body and sealing head |
| JP2017164762A (en) * | 2016-03-15 | 2017-09-21 | 善教 坂本 | Back shield device for weldment of pipeline |
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
| CN209223390U (en) * | 2018-10-29 | 2019-08-09 | 北京航天新风机械设备有限责任公司 | A kind of midget tube pipe docking laser welding point protective device |
-
2018
- 2018-10-29 CN CN201811266672.1A patent/CN109277696A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020017504A1 (en) * | 2000-07-07 | 2002-02-14 | Daido Tokushuko Kabushiki Kaisha | Gas shielded arc welding method |
| JP2004105994A (en) * | 2002-09-17 | 2004-04-08 | Hitachi Ltd | Welding method for tube and infusing nozzle for shielding gas for welding |
| CN2905302Y (en) * | 2006-01-18 | 2007-05-30 | 北京工业大学 | Protective nozzle for laser welding |
| CN200991803Y (en) * | 2006-12-26 | 2007-12-19 | 中国石油兰州石油化工公司 | Pipe welding protection device |
| CN201346660Y (en) * | 2009-01-01 | 2009-11-18 | 阮继成 | Gas shielded welding device with tube air-charging device |
| JP2013146771A (en) * | 2012-01-20 | 2013-08-01 | Mitsubishi Heavy Ind Ltd | Back shield device for welding |
| CN203791810U (en) * | 2013-10-25 | 2014-08-27 | 东方电气（武汉）核设备有限公司 | Back face gas protection device for girth welding of barrel body and sealing head |
| JP2017164762A (en) * | 2016-03-15 | 2017-09-21 | 善教 坂本 | Back shield device for weldment of pipeline |
| CN108672934A (en) * | 2018-04-25 | 2018-10-19 | 西安飞机工业（集团）有限责任公司 | A kind of gas shield device of titanium alloy conduit laser welding and guard method |
| CN209223390U (en) * | 2018-10-29 | 2019-08-09 | 北京航天新风机械设备有限责任公司 | A kind of midget tube pipe docking laser welding point protective device |
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