CN105014231B - A kind of aluminium alloy pipe end composite seal device and encapsulating method - Google Patents
A kind of aluminium alloy pipe end composite seal device and encapsulating method Download PDFInfo
- Publication number
- CN105014231B CN105014231B CN201510483345.1A CN201510483345A CN105014231B CN 105014231 B CN105014231 B CN 105014231B CN 201510483345 A CN201510483345 A CN 201510483345A CN 105014231 B CN105014231 B CN 105014231B
- Authority
- CN
- China
- Prior art keywords
- thin
- aluminium alloy
- alloy pipe
- aluminum alloy
- wall
- 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.)
- Active
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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
- B23K20/126—Workpiece support, i.e. backing or clamping
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/128—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding making use of additional material
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
Abstract
The invention discloses a kind of aluminium alloy pipe end composite seal device and encapsulating method, this device comprises scroll chuck and thin-walled fixture, described scroll chuck is positioned at the first rotating cylinder, a first rotating cylinder part is positioned at the first support tube being arranged on workbench, between the first rotating cylinder and the first support tube, clutch shaft bearing is installed, the one end that is positioned at the first support tube at the first rotating cylinder is extended with the first boss, the first limiting plate of restriction clutch shaft bearing motion is installed on the top of the first support tube, the first tooth bar is installed on the outer wall of the first rotating cylinder, the first motor is installed on workbench, the first motor is connected with the first gear shaft, the first gear shaft engages with the first tooth bar. to thin-wall aluminum alloy pipe, heating makes thin-wall aluminum alloy tube swelling in utilization of the present invention, to be inserted in thin-wall aluminum alloy pipe lower than the aluminium alloy bars of room temperature, overcome the shortcoming that thin-wall pipe rigidity is low, torsional property is poor, in the welding of other materials thin-wall pipe, there is versatility.
Description
Technical field
The present invention relates to aluminium alloy pipe end composite seal device and encapsulating method, belong to metal material processing field.
Background technology
Friction stir welding (FrictionStirWelding is called for short FSW) is Britain institute of welding (TheWeldingInstitute) in the patent solder technology of invention in 1991. Friction stir welding is except having the advantage of common friction welding technology,Can also carry out the connection of multiple joint form and different welding positions. Agitating friction welding technology Aeronautics and Astronautics,The application of succeeding of the aspects such as boats and ships, train, electric power and heavy weapons, but the current welding side at thin-wall aluminum alloy pipeStill there are some problems in face.
When tube wall becomes hour, welding difficulty becomes large. Patent (201410729971.X) has proposed employing tungsten inert gas and has protectedProtect weldering, solve the connectivity problem of small-diameter, thin-walled aluminium alloy pipe; Patent (201010524846.7) proposes a kind of minor diameterThe welding method of ozzle and aluminium alloy thin-walled structure, welds minor-diameter nozzle and aluminium alloy thin-walled structure junction,Equally also to adopt arc welding method to weld. In fact, adopt arc welding method to weld (as ac tungsten inert gases welding)When aluminium alloy is welded, very easily cause crackle and pore, especially, in the time that thin-wall pipe welds, welding deformation is more tightHeavy, percent defective even reaches 70%. In order to improve welding quality, patent (201310096100.4) has proposed a kind of heat pumpBy the production method of minor-caliber ultra-thin-wall high-frequency welding aluminium-alloy pipe, but welding current is higher, reaches 230～235A, withTime high-frequency welding electrical efficiency low (being about 50% left and right), voltage and current is too high, poor stability. The people such as Zheng Ying (speciallyProfit number: 201510118191.6,201510118211.X) proposed a kind of production of aluminium alloy super-large diameter thin wall overpressure resistant pipeMethod, the method for welding by agitating friction is carried out longitudinal seam welding. But do not relate to the end face soldering and sealing skill of aluminium-alloy pipeArt. The people such as Li Hui (coming from: AWJT2005, October20-23, Dalian, China, A42-A47) have proposed onePlant the friction stir welding method of thin-wall aluminum alloy cylindrical shell weld seam, but in welding process, need to adopt the dress of inner tensionerStandby guarantee weldment is indeformable, also need to hold out against end cap from both sides, and the method proposing is applicable to aluminium alloy cylindrical body end simultaneouslyMask has the situation of opening, and, in the time that end face requires thoroughly sealing, the method proposing cannot be finished the work.
Visible, in the time that thin-wall aluminum alloy pipe (wall thickness is less than 1mm) needs end face sealing welding, be faced with a welding difficult problem,Be embodied in: 1, wall thickness thinner cause rigidity and torsional property poor, be difficult to directly clamping and rotate welding; 2, aluminium alloy endThe requirement of face closure, causes inner swelling device to be difficult to put into thin-wall pipe inside, thereby causes owing to lacking inner supportAgitating friction welds unsuccessfully. Therefore propose a kind of effective thin-wall aluminum alloy sealing method for tube end and device and there is important showingSincere justice.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the compound seal of a kind of aluminium alloy pipe endDevice and encapsulating method, by adopting the mode of agitating friction overlap welding and fluid sealant combination to complete the sealing of pipe end, both protectedThe intensity of having demonstrate,proved welding point has ensured again the air-tightness of aluminium alloy pipe end.
Technical scheme: for solving the problems of the technologies described above, a kind of aluminium alloy pipe end composite seal device of the present invention, comprises useIn the fixing scroll chuck of aluminium alloy bars and the thin-walled fixture of fixing thin-wall aluminum alloy pipe, described scroll chuck is positioned at first and revolvesIn rotating cylinder, a first rotating cylinder part is positioned at the first support tube being arranged on workbench, the first rotating cylinder and firstBetween support cylinder, clutch shaft bearing is installed, the one end that is positioned at the first support tube at the first rotating cylinder is extended with the first boss,The top of the first support tube is provided with the first limiting plate of restriction clutch shaft bearing motion, on the outer wall of the first rotating cylinder, installsHave the first tooth bar, the first motor is installed on workbench, the first motor is connected with the first gear shaft, the first gear shaft withThe first tooth bar engagement; Described thin-walled fixture is positioned at the second rotating cylinder, and a second rotating cylinder part is positioned at and is arranged on slide plateThe second support tube in, between the second rotating cylinder and the second support tube, the second bearing is installed, be positioned at the second rotating cylinderOne end in two support tubes is extended with the second boss, and the of restriction the second bearing movable is installed on the top of the second support tubeTwo limiting plates are provided with the second tooth bar on the outer wall of the second rotating cylinder, the second motor are installed on slide plate, the second electricityMachine is connected with the second gear shaft, and the second gear shaft engages with the second tooth bar; Described slide plate is transported along workbench by mobile deviceMoving, below aluminium alloy bars, be provided with near thin-wall aluminum alloy pipe the turning rolls group that supports aluminium alloy bars; Described aluminium alloy bars oneEnd is inserted in thin-wall aluminum alloy pipe, and aluminium alloy bars and thin-wall aluminum alloy pipe are interference fit, in aluminium alloy bars and Thin-walled AluminumThe top of compo pipe cooperation place is provided with stirring-head; Described aluminium alloy bars is provided with several annular seal grooves, near thin-walledAn annular seal groove part for aluminium-alloy pipe is positioned at thin-wall aluminum alloy pipe, and the distance of adjacent annular seal groove is not less than stirring1.5 times of diameter.
As preferably, described mobile device comprises servomotor and straight line slide unit, and servomotor is connected with sliding axle, slidesAxle is threaded with straight line slide unit, and the both sides of straight line slide unit are provided with line slideway, and rail slider is installed on line slideway,Slide plate is fixedly connected with rail slider with straight line slide unit, and servomotor drives straight line slide unit to move, thereby drives slide plate to move.
As preferably, described annular seal groove longitudinal section is isosceles trapezoid shape, and away from aluminium alloy bars is the upper of isosceles trapezoidThe end,, upper base is the twice of going to the bottom, and the base angle of isosceles trapezoid is 45 °.
As preferably, described upper base length H is:
As 0 < d0When < 10mm, H=0.8d0；
As 10≤d0When≤50mm, H=0.6d0；
Work as d0While being greater than 50mm, H=0.4d0，d0For the diameter of aluminium alloy bars.
As preferably, the magnitude of interference of described aluminium alloy bars and thin-wall aluminum alloy pipe is δ, δ=(t-t0)×α×l-δ0，Wherein, δ0=(1～2) * δ, temperature when t is assembling, t0For the environment temperature before heating, workpiece when α is heatingBe radially expanded coefficient, the internal diameter of the heated thin-wall aluminum alloy pipe of l.
As preferably, the length that described aluminium alloy bars stretches into thin-wall aluminum alloy pipe is not less than 1.5 times of stirring-head diameter, stirsMix head and be extended with mixing needle, the length of mixing needle is not less than the wall thickness of 1.5 times of thin-wall aluminum alloy pipes.
An encapsulating method for above-mentioned aluminium alloy pipe end composite seal device, comprises the following steps:
(1) according to actual needs, utilize δ=(t-t0)×α×l-δ0Determine magnitude of interference δ, process satisfactoryAluminium alloy bars, selects suitable mixing needle according to thin-wall aluminum alloy thickness of pipe wall;
(2) thin-wall aluminum alloy pipe is heated to 100 DEG C, aluminium alloy bars temperature of living in, lower than room temperature, is then assembled rapidlyThin-wall aluminum alloy pipe and aluminium alloy bars are also cooling fast, and a half width that makes to enter the annular seal groove in pipe is stretched out aluminium alloyPipe end;
(3) aluminium alloy bars one end in the workpiece assembling is arranged on scroll chuck, other end thin-wall aluminum alloy pipe is logicalCrossing thin-walled fixture fixes;
(4) first start stirring-head, and make it slowly be pressed into welded region to carry out preheating, preheating finishes to start afterwards simultaneouslyThe first motor and the second motor, workpiece is rotated a circle after the first motor and the second motor quit work, extract out and stir slowlyMix head, after mixing needle departs from workpiece completely, can stop the rotation of stirring-head;
(5) along thin-wall aluminum alloy pipe end excision aluminium alloy bars, in keyhole and annular seal groove, fill up fluid sealant, wait forIt solidifies completely;
(6) other end repeating step (2)～(5) of thin-wall aluminum alloy pipe, complete thin-wall aluminum alloy pipe end two endsCompound seal.
In the present invention, select dovetail groove, circular trough relatively, dovetail groove is easy to processing; Inserting after sealed colloid,The colloid small volume that the groove of circular shape can hold, also less with the contact area of aluminium alloy bars, be easy in external forceUnder effect, come off; The length of upper base has determined volume, fluid sealant and the aluminium-alloy pipe of fluid sealant, the contact-making surface of aluminium alloy barsLong-pending, therefore must, according to the diameter of aluminium alloy bars, determine the seal groove of certain volume and shape. Therefore upper base is too little,Fluid sealant volume is too little, does not play sealing effectiveness; Upper base is larger, and sealing effectiveness can be better; But upper base is not the bigger the better,Too large can cause waste, also can hollow out aluminium alloy bars.
In this patent, by scroll chuck and thin-walled fixture holding workpiece, while ensureing initial welding, on the one hand, aluminium alloyBetween pipe and aluminium alloy bars, can fit tightly; On the other hand, stop between the two and axially relatively move by interference fit;When normal welding, completed weld seam can progressively be strengthened the bonding strength between aluminium-alloy pipe and aluminium alloy bars. This interference is joinedThe selection of closing, compared with method conventional in machinery, does not need the larger magnitude of interference, this be because: mixing needle inserts overlap jointWeld seam inside, mixing needle itself just plays " pinning " effect, do not need too strong strength stop both axially relativelyMobile, in welding process, Fit is in high temperature (500 DEG C of left and right) in addition, and the excessive magnitude of interference can cause aluminium alloyVery strong tension on pipe, is unfavorable for appearance of weld. And while selecting the magnitude of interference of conventional aluminum alloy materials, due at 100 DEG CTemperature under, aluminium alloy, than steel, is softer, therefore, need to have the larger magnitude of interference.
Beneficial effect: aluminium alloy pipe end composite seal device of the present invention, utilizes the heating to thin-wall aluminum alloy pipe to make thin-walledAluminium-alloy pipe expand, will be inserted in thin-wall aluminum alloy pipe lower than the aluminium alloy bars of room temperature, overcome thin-wall pipe rigidity low,The shortcoming that torsional property is poor has versatility in the welding of other materials thin-wall pipe; Adopt agitating friction overlap welding andThe mode of fluid sealant combination completes the sealing of pipe end, has not only ensured the intensity of welding point but also ensured the gas of aluminium alloy pipe endClose property.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is welding point front view and each parts direction of rotation thereof;
Fig. 3 is welding point cross-sectional view;
Fig. 4 amplifies 2 times of schematic diagrames with the aluminium alloy bars cross section of annular seal groove;
Fig. 5 is the structural representation of mobile device in Fig. 1.
Detailed description of the invention
As shown in Figures 1 to 5, a kind of aluminium alloy pipe end composite seal device of the present invention, comprises for fixing aluminium alloyThe scroll chuck 22 of rod 6 and the thin-walled fixture 13 of fixing thin-wall aluminum alloy pipe 1, described scroll chuck 22 is positioned at first and revolvesIn rotating cylinder 8, first rotating cylinder 8 parts are positioned at the first support tube 17, the first rotations that are arranged on workbench 18Cylinder 8 and first is provided with clutch shaft bearing 23 between support tube 17, is positioned at the first support tube 17 at the first rotating cylinder 8One end is extended with the first boss, and first spacing that restriction clutch shaft bearing 23 moves is installed on the top of the first support tube 17Plate 25 is provided with the first tooth bar on the outer wall of the first rotating cylinder 8, and the first motor 1 is installed on workbench 18,The first motor 1 is connected with the first gear shaft 24, and the first gear shaft 24 engages with the first tooth bar; Described thin-walled fixture 13Be positioned at the second rotating cylinder, a second rotating cylinder part is positioned at the second support tube 10, the second being arranged on slide plate 14Between rotating cylinder and the second support tube 10, the second bearing 11 is installed, is positioned at the second support tube 10 at the second rotating cylinderOne end is extended with the second boss, and second spacing that restriction the second bearing 11 moves is installed on the top of the second support tube 10Plate 12 is provided with the second tooth bar on the outer wall of the second rotating cylinder, and the second motor 15, the second is installed on slide plate 14Motor 15 is connected with the second gear shaft 16, and the second gear shaft 16 engages with the second tooth bar; Described slide plate 14 is by mobileDevice moves along workbench 18, below aluminium alloy bars 6, is provided with and supports aluminium alloy bars 6 near thin-wall aluminum alloy pipe 1Turning rolls group 7; Described aluminium alloy bars 6 one end are inserted in thin-wall aluminum alloy pipe 1, aluminium alloy bars 6 and thin-wall aluminum alloyPipe 1 is interference fit, above aluminium alloy bars 6 and thin-wall aluminum alloy pipe 1 cooperation place, stirring-head 3 is installed; DescribedAluminium alloy bars 6 is provided with several annular seal grooves, is positioned at thin near an annular seal groove part for thin-wall aluminum alloy pipe 1In wall aluminium-alloy pipe 1, the distance of adjacent annular seal groove is not less than 1.5 times of stirring-head 3 diameters. The first motor 1 HeThe second motor 15 is all connected with controller, and the first motor 1 controlled by controller simultaneously and the second motor 15 rotates, thus bandMoving the first gear shaft 24 and the second gear shaft 16 rotate, due to the first gear shaft 24 and the second gear shaft 16 and the first toothBar and the engagement of the second tooth bar, the first gear shaft 24 and the second gear shaft 16 rotate and drive the first rotating cylinder 8 and the second rotationCylinder rotates, thereby drives scroll chuck 22 to synchronize rotation with thin-walled fixture 13. The first gear shaft 24 and the second gear shaft16 and first tooth bar and the second tooth bar be helical teeth, like this, because the cooperation of boss and helical teeth makes the first rotating cylinder 8Can not move at axis with the second rotating cylinder.
In the present invention, described mobile device comprises servomotor 19 and straight line slide unit 20, servomotor 19 and sliding axleConnect, sliding axle is threaded with straight line slide unit 20, and the both sides of straight line slide unit 20 are provided with line slideway 21, line slidewayRail slider is installed on 21, and slide plate 14 is fixedly connected with rail slider with straight line slide unit 20, and servomotor 19 drivesStraight line slide unit 20 moves, thereby drives slide plate 14 to move. When an annular seal groove of aluminium alloy bars 6 has welded,Carry out the welding of next annular seal groove, servomotor 19 drives slide plate 14 to move, and makes second on slide plate 14Support tube 10 moves the distance of an adjacent annular seal groove.
In the present invention, described annular seal groove longitudinal section is isosceles trapezoid shape, and away from aluminium alloy bars 6 axis is isoscelesTrapezoidal upper base, upper base is the twice of going to the bottom, the base angle β of isosceles trapezoid is 45 °. Described upper base length is: when0<d0When < 10mm, H=0.8d0; As 10≤d0When≤50mm, H=0.6d0; Work as d0While being greater than 50mm, H=0.4d0，d0For the diameter of aluminium alloy bars 6.
In the present invention, described aluminium alloy bars 6 is δ with the magnitude of interference of thin-wall aluminum alloy pipe 1, δ=(t-t0)×α×l-δ0, wherein, δ0=(1～2) * δ, temperature when t is assembling, t0For the environment temperature before heating, α is heatingTime workpiece be radially expanded coefficient, the internal diameter of the heated thin-wall aluminum alloy pipe 1 of l. Described aluminium alloy bars 6 stretches into Thin-walled AluminumThe length of compo pipe 1 is not less than 1.5 times of stirring-head 3 diameters, and stirring-head 3 is extended with mixing needle, the length of mixing needleBe not less than the wall thickness of 1.5 times of thin-wall aluminum alloy pipes 1.
Mixing needle 2 on stirring-head 3 rigidly fixes connection, the spinning movement of stirring-head 3, X-axis, Y-axis, ZAxial adjustment function all can adopt friction stir welding machine on the market to realize. Described X-axis is stirring-head 3 lengthwise movements, realizesThe quick location of weld seam 4, adopts " servomotor+ball-screw+straight ball-guide " transmission; Described Y-axis is for stirringMix 3 transverse movement, realize adjustment and the handling stirring-head 3 of stirring-head 3, lateral attitude, adopt " manual trapezoidal silkThick stick+straight ball-guide " transmission; Described Z axis is that main tapping moves both vertically, and realizes the insertion of stirring-head 3, adopts and " watchesTake " the transmission of motor+worm reducer+ball-screw; Described weld jig rotating shaft, realizes aluminium alloy bars and aluminium-alloy pipe 1Rotation, adopt " servomotor+planet-cycloid reducer " drive; The rotating shaft of described stirring-head 3, can be by motor straightConnect driving.
Described turning rolls group 10, can regulate the distance between roller in Y-direction, to adapt to the pipe fitting of different-diameter.
In the present invention, determine the direction of rotation of stirring-head 3 and chuck 7: as shown in Figure 2, suppose the angle from left viewDegree is observed the direction of rotation of chuck 7, observes the direction of rotation of stirring-head 3, if chuck 7 is contrary from the angle of top view simultaneouslyClockwise rotation, stirring-head 3 rotation clockwise; Otherwise, if it is suitable to observe chuck 7 from the angle of left viewClockwise rotation, observes stirring-head 3 rotation clockwise from the angle of top view.
An encapsulating method for above-mentioned thin-wall aluminum alloy pipe 1 end composite seal device, comprises the following steps:
(1) according to actual needs, utilize δ=(t-t0)×α×l-δ0Determine magnitude of interference δ, process satisfactoryAluminium alloy bars 6, selects suitable mixing needle according to thin-wall aluminum alloy pipe 1 wall thickness;
(2) thin-wall aluminum alloy pipe 1 is heated to 100 DEG C, aluminium alloy bars 6 temperature of living in is lower than room temperature, then rapidAssembling thin-wall aluminum alloy pipe 1 and aluminium alloy bars 6 cooling fast, a half width that makes to enter the annular seal groove in pipe is stretchedGo out aluminium-alloy pipe 1 end;
(3) aluminium alloy bars 6 one end in the workpiece assembling are arranged on scroll chuck 22 to other end thin-wall aluminum alloyPipe 1 is fixing by thin-walled fixture 13;
(4) first start stirring-head 3, and make it slowly be pressed into welded region to carry out preheating, preheating finishes to start afterwards simultaneouslyThe first motor 1 and the second motor 15, workpiece is rotated a circle after the first motor 1 and the second motor 15 quit work, slowSlow extraction stirring-head 3 can stop the rotation of stirring-head 3 after mixing needle departs from workpiece completely;
(5) along thin-wall aluminum alloy pipe 1 tip cut-off aluminium alloy bars 6, in keyhole and annular seal groove, fill up fluid sealant, etc.Treat that it solidifies completely;
(6) other end repeating step (2)～(5) of thin-wall aluminum alloy pipe 1, complete thin-wall aluminum alloy pipe 1 end twoThe compound seal of end.
The above is only the preferred embodiment of the present invention, is noted that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are alsoShould be considered as protection scope of the present invention.
Claims (7)
1. an aluminium alloy pipe end composite seal device, is characterized in that: comprise the three-jaw card for fixing aluminium alloy barsThe thin-walled fixture of dish and fixing thin-wall aluminum alloy pipe, described scroll chuck is positioned at the first rotating cylinder, the first one of rotating cylinderDivide and be positioned at the first support tube being arranged on workbench, between the first rotating cylinder and the first support tube, clutch shaft bearing is installed,The one end that is positioned at the first support tube at the first rotating cylinder is extended with the first boss, installs limited on the top of the first support tubeThe first limiting plate of clutch shaft bearing motion processed is provided with the first tooth bar on the outer wall of the first rotating cylinder, on workbench, pacifiesThe first motor is housed, and the first motor is connected with the first gear shaft, and the first gear shaft engages with the first tooth bar; Described thin-walled folderTool is positioned at the second rotating cylinder, and a second rotating cylinder part is positioned at the second support tube being arranged on slide plate, the second rotationBetween cylinder and the second support tube, the second bearing is installed, the one end that is positioned at the second support tube at the second rotating cylinder is extended with theTwo boss, are provided with the second limiting plate of restriction the second bearing movable on the top of the second support tube, at the second rotating cylinderThe second tooth bar is installed on outer wall, the second motor is installed on slide plate, the second motor is connected with the second gear shaft, and secondGear shaft engages with the second tooth bar; Described slide plate by mobile device along working table movement, below aluminium alloy bars near thinWall aluminium-alloy pipe is provided with the turning rolls group that supports aluminium alloy bars; Described aluminium alloy bars one end is inserted in thin-wall aluminum alloy pipe,Aluminium alloy bars and thin-wall aluminum alloy pipe are interference fit, above aluminium alloy bars and thin-wall aluminum alloy pipe cooperation place, are provided withStirring-head; Described aluminium alloy bars is provided with several annular seal grooves, one of the annular seal groove of close thin-wall aluminum alloy pipeDivide and be positioned at thin-wall aluminum alloy pipe, the distance of adjacent annular seal groove is not less than 1.5 times of stirring-head diameter.
2. aluminium alloy pipe end composite seal device according to claim 1, is characterized in that: described mobile deviceComprise servomotor and straight line slide unit, servomotor is connected with sliding axle, and sliding axle is threaded with straight line slide unit, straight lineThe both sides of slide unit are provided with line slideway, and rail slider is installed on line slideway, and slide plate and straight line slide unit and rail slider are solidFixed connection, servomotor drives straight line slide unit to move, thereby drives slide plate to move.
3. aluminium alloy pipe end composite seal device according to claim 2, is characterized in that: described ring packingGroove longitudinal section is isosceles trapezoid shape, away from aluminium alloy bars be the upper base of isosceles trapezoid, upper base is the twice of going to the bottom, isoscelesTrapezoidal base angle is 45 °.
4. aluminium alloy pipe end composite seal device according to claim 3, is characterized in that: described upper base lengthH is:
As 0 < d0When < 10mm, H=0.8d0；
As 10≤d0When≤50mm, H=0.6d0；
Work as d0While being greater than 50mm, H=0.4d0，d0For the diameter of aluminium alloy bars.
5. aluminium alloy pipe end composite seal device according to claim 4, is characterized in that: described aluminium alloy barsWith the magnitude of interference of thin-wall aluminum alloy pipe be δ, δ=(t-t0)×α×l-δ0, wherein, δ0＝(1～2)*δ，tTemperature during for assembling, t0For the environment temperature before heating, α be when heating workpiece be radially expanded coefficient, l is heated thinThe internal diameter of wall aluminium-alloy pipe.
6. aluminium alloy pipe end composite seal device according to claim 5, is characterized in that: described aluminium alloy barsThe length that stretches into thin-wall aluminum alloy pipe is not less than 1.5 times of stirring-head diameter, and stirring-head is extended with mixing needle, mixing needleLength is not less than the wall thickness of 1.5 times of thin-wall aluminum alloy pipes.
7. an encapsulating method for the aluminium alloy pipe end composite seal device as described in claim 5 to 6 any one, itsBe characterised in that, comprise the following steps:
(1) according to actual needs, utilize δ=(t-t0)×α×l-δ0Determine magnitude of interference δ, process satisfactoryAluminium alloy bars, selects suitable mixing needle according to thin-wall aluminum alloy thickness of pipe wall;
(2) thin-wall aluminum alloy pipe is heated to 100 DEG C, aluminium alloy bars temperature of living in, lower than room temperature, is then assembled rapidlyThin-wall aluminum alloy pipe and aluminium alloy bars are also cooling fast, and a half width that makes to enter the annular seal groove in pipe is stretched out aluminium alloyPipe end;
(3) aluminium alloy bars one end in the workpiece assembling is arranged on scroll chuck, other end thin-wall aluminum alloy pipe is logicalCrossing thin-walled fixture fixes;
(4) first start stirring-head, and make it slowly be pressed into welded region to carry out preheating, preheating finishes to start afterwards simultaneouslyThe first motor and the second motor, workpiece is rotated a circle after the first motor and the second motor quit work, extract out and stir slowlyMix head, after mixing needle departs from workpiece completely, can stop the rotation of stirring-head;
(5) along thin-wall aluminum alloy pipe end excision aluminium alloy bars, in keyhole and annular seal groove, fill up fluid sealant, wait forIt solidifies completely;
(6) other end repeating step (2)～(5) of thin-wall aluminum alloy pipe, complete thin-wall aluminum alloy pipe end two endsCompound seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483345.1A CN105014231B (en) | 2015-08-07 | 2015-08-07 | A kind of aluminium alloy pipe end composite seal device and encapsulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483345.1A CN105014231B (en) | 2015-08-07 | 2015-08-07 | A kind of aluminium alloy pipe end composite seal device and encapsulating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105014231A CN105014231A (en) | 2015-11-04 |
| CN105014231B true CN105014231B (en) | 2016-05-11 |
Family
ID=54404724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510483345.1A Active CN105014231B (en) | 2015-08-07 | 2015-08-07 | A kind of aluminium alloy pipe end composite seal device and encapsulating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105014231B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7228687B2 (en) * | 2018-07-02 | 2023-02-24 | ジン－ジン エレクトリック テクノロジーズ カンパニー リミテッド | Seal welding method for motor housing cooling water passage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204934851U (en) * | 2015-08-07 | 2016-01-06 | 江苏通宇钢管集团有限公司 | A kind of aluminium alloy pipe end composite seal device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6259052B1 (en) * | 1998-12-18 | 2001-07-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Orbital friction stir weld system |
| JP2006205252A (en) * | 2005-01-31 | 2006-08-10 | Hitachi Ltd | Tube end plugging method and cylinder device |
| CN104668306A (en) * | 2015-03-14 | 2015-06-03 | 郑英 | Production method of ultra-large-diameter thin-walled pressure-resistant aluminum alloy pipe |
| CN104759750B (en) * | 2015-04-02 | 2016-11-09 | 东北大学 | A kind of pipe line steel circular weld agitating friction welding mechanism |
-
2015
- 2015-08-07 CN CN201510483345.1A patent/CN105014231B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204934851U (en) * | 2015-08-07 | 2016-01-06 | 江苏通宇钢管集团有限公司 | A kind of aluminium alloy pipe end composite seal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105014231A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104999173B (en) | Thin-walled aluminum alloy pipe end sealing and welding device and welding method | |
| CN104959727B (en) | A kind of thin-wall aluminum alloy pipe end composite seal device and welding method | |
| CN204771130U (en) | Thin wall aluminum alloy tube end soldering and sealing device | |
| CN105014230B (en) | A kind of aluminium alloy pipe end soldering and sealing device and welding process | |
| CN105127581B (en) | A kind of thin-wall aluminum alloy pipe end soldering and sealing device and welding method | |
| CN103624378B (en) | Pipeline Hot Wire TIG Welding connects method | |
| CN105234551A (en) | Sealing device and sealing method for ends of thin-walled stainless steel pipe | |
| CN103737220B (en) | The friction stir welding inner supporting device of its central band reserved opening closed cylinder in two ends | |
| US20090159643A1 (en) | Method for joining tube plates and tubes as well as friction tool to carry out the method | |
| CN202278283U (en) | Circumferential all-position TIG (Tungsten extremely inert gas) automatic surfacing equipment for inner surface of 90-degree bent pipe | |
| BR112018001075B1 (en) | Method for repairing a defect in a weld, friction stir processing system and piping system | |
| CN105127580A (en) | Compound sealing device for ends of thin-wall stainless steel pipe and sealing method | |
| CN101972885B (en) | Bushing-free narrow-gap pulse gas metal arc backing welding method of petroleum kelly bar | |
| CN104191121A (en) | Automatic welding mechanism for circumferential welds | |
| CN204818492U (en) | Compound sealing device of thin wall aluminum alloy tube end | |
| CN105014231B (en) | A kind of aluminium alloy pipe end composite seal device and encapsulating method | |
| CN105750717A (en) | Welding process used for connecting plates and cylinder body | |
| CN105710578B (en) | A kind of welding mechanism for being exclusively used in justifying seam welding | |
| CN207464397U (en) | A kind of welding fixture for lubricating oil pipe | |
| CN204934852U (en) | A kind of aluminium alloy pipe end soldering and sealing device | |
| CN204934851U (en) | A kind of aluminium alloy pipe end composite seal device | |
| CN205271088U (en) | Welding bench | |
| CN110722279A (en) | Steel pipe butt welding process | |
| CN109834370A (en) | A kind of welder for steel pipes with straight | |
| CN206632497U (en) | A kind of vertical circumferential weld automatic TIG welding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |