CN202555969U - Inter-shaft structure for double-shaft friction stir welding of heavy plates - Google Patents
Inter-shaft structure for double-shaft friction stir welding of heavy plates Download PDFInfo
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- CN202555969U CN202555969U CN2012201727537U CN201220172753U CN202555969U CN 202555969 U CN202555969 U CN 202555969U CN 2012201727537 U CN2012201727537 U CN 2012201727537U CN 201220172753 U CN201220172753 U CN 201220172753U CN 202555969 U CN202555969 U CN 202555969U
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- Prior art keywords
- shaft
- stirring
- shoulder
- friction stir
- shaft shoulder
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- 238000003756 stirring Methods 0.000 title claims abstract description 91
- 238000003466 welding Methods 0.000 title claims abstract description 46
- 238000009434 installation Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 abstract description 22
- 239000004411 aluminium Substances 0.000 abstract description 22
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 238000013019 agitation Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 241000538562 Banjos Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003836 solid-state method Methods 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The utility model discloses an inter-shaft structure for double-shaft friction stir welding of heavy plates. The inter-shaft structure comprises a double stirring spindle; the double stirring spindle adopts the split-type structure form that a shoulder shaft and a stirring pin shaft are mounted concentrically; a clearance is formed between the shoulder shaft and the stirring pin shaft; a chip accommodating bin is arranged above the clearance between the shoulder shaft and the stirring pin shaft; and the shoulder shaft is composed of two identical parted structures which are mounted symmetrically along the center line of the shoulder shaft. Due to the design of the chip accommodating bin, the double stirring spindle is effectively prevented from locking, and the continuous running time of equipment for longer-time friction stir welding of aluminium plates exceeding 40 mm is prolonged; and due to the parted structures of the shoulder shaft, the phenomenon that a shoulder and a stirring pin are stuck and cannot be dismounted after aluminium scraps are pressed in the clearance between the shoulder shaft and the stirring pin shaft is avoided, the removal of the aluminium scraps is facilitated, and the service lives of the stirring pin shaft and the shoulder shaft are prolonged.
Description
Technical field
The utility model relates to a kind of slab twin shaft axle friction stir welding between centers structure.
Background technology
Friction stir welding is a kind of solid-state method of attachment that was proposed in 1991 by Britain's institute of welding (The Welding Institute, be called for short TWI), and in 1993 with nineteen ninety-five both developed and developing country application worldwide intellectual property protection.This know-why is simple, and the control parameter is few, is easy to automation, can the human factor in the welding process be dropped to minimum.The agitating friction welding technology is compared with traditional melting welding, has lot of advantages, thereby makes it have wide industrial application prospect and development potentiality.The research of the influence of the tissue of relevant friction stir welding, mechanical property (comprising fracture, fatigue, corrosive nature), Non-Destructive Testing and technological parameter butt welded seam quality etc. is the basis of applying friction stir welding, and the research of relevant these aspects is these hot research fields.The agitating friction welding technology is to be connected new technology from the solid phase of inventing a commercial Application time span mystery short and the most with fastest developing speed on world's solder technology development history.By on September 15th, 2002, obtain in the world wide permission of Britain's institute of welding (TWI) friction stir welding patented technology the user oneself through 78 families are arranged, the patented technology relevant with the agitating friction welding technology has 551, the user has covered 24 countries and regions.Companies such as famous B o e i n g, NASA, BAE, HONDA, GE, HITACHI, MARTIN have bought this technology, and a large amount of using in industries such as space flight, aviation, vehicle, shipbuildings with succeeding.
The Fundamentals of Welding of friction stir welding are: place the butt joint workpiece on the backing plate to pass through clamp, unclamp in welding process to prevent banjo fixing butt jointing.One has special type and stirs the stirring-head rotation of finger and will stir the commissures between two butt joints of finger insertion sheet material slowly.In general, stir the degree of depth of the length of finger near weld seam.When stirring finger contact workpiece when surface of rotation, with the quick fricative frictional heat of surface of the work the temperature of contact point material is raise, intensity reduces.Stir the material on continuous under external force upset of finger and extruding seam both sides, till the tight contact workpiece of shaft shoulder surface.At this moment, below the shaft shoulder with around stirring finger, form a large amount of plasticizing layers by the rotation shaft shoulder and the frictional heat that stirs the finger generation.When workpiece moves or stirs finger when workpiece moves relative to stirring finger, stirring under the mechanical agitation and upset effect that produces on finger side and the direction of rotation, the front surface that stirs finger is transplanted on the material of plasticizing behind the stirring finger surperficial.Stirring finger when seam is advanced, the banjo fixing butt jointing surface of stirring the soldering tip front is heated to the superplasticity state by friction.Stir the finger and shaft shoulder friction seam, broken oxide-film stirs and the ground material at finger rear is stirred in reorganization.Just form weld seam after the material cooled at stirring finger rear.It is thus clear that this weld seam is the solid-state weld seam that under heat, machine synergy, forms.This method can be regarded as a kind of self-locking hole interconnection technique, in welding process, stirs place, finger place and forms aperture, and aperture is filled again in welding process subsequently, is noted that when stirring friction welding seam finishes to stay a keyhole at the terminal.Usually this keyhole can cut away, and also can use other welding method soldering and sealing to live.Main heat production body is to stir the finger and the shaft shoulder in welding process.When the welding thin plate, the friction of the shaft shoulder and workpiece is main origin of heat.
There is the gap in the inside and outside shaft shoulder of at present two stirring main shaft friction stir welding axle head structures, and the aluminium bits are pressed into when causing welding, and causes the main shaft locking and can't During normal welding.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of prior art; A kind of slab twin shaft axle friction stir welding between centers structure is provided; It is through holding the design in bits storehouse; Prevent the locking of two stirring main shafts effectively, increased the equipment stream time of the friction Stir that surpasses the 40mm aluminium sheet long period; The branch body structure of shaft shoulder axle has been avoided the shaft shoulder and mixing needle to be pressed into aluminium bits back producing bonding and can't dismantle, help the removing of aluminium bits, prolonged the service life of stirring needle shaft and shaft shoulder axle.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of slab twin shaft axle friction stir welding between centers structure; Comprise two stirring main shafts; Said pair of stirring main shaft is shaft shoulder axle and the split version that stirs the concentric installation of needle shaft; There is the gap between shaft shoulder axle and the stirring needle shaft, above the position, gap between shaft shoulder axle and the stirring needle shaft, is provided with one and holds the bits storehouse.
Said shaft shoulder axle divides body structure to constitute by the identical two parts of structure, and two parts of shaft shoulder axle divide body structure to install along its center line symmetry.
The technological difficulties of most critical are to the control of stirring tool rotating speed and the control that produces frictional heat in two stirring main shaft stir friction welding process; Because traditional agitation welding tool shaft shoulder axle is structure as a whole with stirring needle shaft, so can't realize the control of rotating speed and the control of frictional heat.Because the increase of throat thickness; Just must improve the rotating speed of mixing needle and obtain away from the frictional heat of the workpiece of shaft shoulder welding; Therefore; The utility model is designed to shaft shoulder axle and the split version that stirs needle shaft with slab twin shaft friction stir welding axle head, because shaft shoulder axle is different with the rotating speed that stirs needle shaft, so there is certain clearance between them; When stirring welding,, the existence in gap is pressed into its gap because can causing aluminium to be considered to be worth doing inevitably; Therefore shaft shoulder axle with stir needle shaft gap be designed with corresponding appearance bits storehouse, hold bottom, bits storehouse because action of centrifugal force makes the aluminium bits that are pressed into be dumped into during welding, thereby prevented the locking of main shaft effectively.
Remove bulged-in aluminium bits for ease, with the shaft shoulder by center line in two, bulged-in aluminium bits when stirring welding are removed in back for convenience detach.
The utility model has prevented the locking of two stirring main shafts effectively through holding the design in bits storehouse, increases the equipment stream time of the friction Stir that surpasses the 40mm aluminium sheet long period; The branch body structure of shaft shoulder axle has been avoided shaft shoulder axle and mixing needle axial compression to go into aluminium bits back producing bonding and can't dismantle, help the removing of aluminium bits, prolonged the service life of stirring needle shaft and shaft shoulder axle.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the said shaft shoulder axle of a utility model split structural representation.
The specific embodiment
As shown in Figure 1, the utility model provides a kind of slab twin shaft axle friction stir welding between centers structure, comprises two stirring main shafts; Said pair of stirring main shaft is shaft shoulder axle 1 and the split versions that stir needle shaft 2 concentric installations, has gap 3 between shaft shoulder axle and the stirring needle shaft, for the ease of identification; What represent among Fig. 1 is the gap shape after amplifying; During work, bulged-in aluminium bits 5 are arranged in the gap, above the position, gap between shaft shoulder axle and the stirring needle shaft, be provided with one and hold bits storehouse 4.The direction of arrow is the direction of rotation of two stirring main shafts among Fig. 1.
As shown in Figure 2, said shaft shoulder axle divides body structure 1-1,1-2 to constitute by the identical two parts of structure, and two parts of shaft shoulder axle divide body structure to install along its center line 1-3 symmetry.
The technological difficulties of most critical are to the control of stirring tool rotating speed and the control that produces frictional heat in two stirring main shaft stir friction welding process; Because traditional agitation welding tool shaft shoulder axle is structure as a whole with stirring needle shaft, so can't realize the control of rotating speed and the control of frictional heat.Because the increase of throat thickness; Just must improve the rotating speed of mixing needle and obtain away from the frictional heat of the workpiece of shaft shoulder welding; Therefore; The utility model is designed to shaft shoulder axle and the split version that stirs needle shaft with slab twin shaft friction stir welding axle head, because shaft shoulder axle is different with the rotating speed that stirs needle shaft, so there is certain clearance between them; When stirring welding,, the existence in gap is pressed into its gap because can causing aluminium to be considered to be worth doing inevitably; Therefore shaft shoulder axle with stir needle shaft gap be designed with corresponding appearance bits storehouse, hold bottom, bits storehouse because action of centrifugal force makes the aluminium bits that are pressed into be dumped into during welding, thereby prevented the locking of main shaft effectively.
Remove bulged-in aluminium bits for ease, with the shaft shoulder by center line in two, bulged-in aluminium bits when stirring welding are removed in back for convenience detach.
The utility model has prevented the locking of two stirring main shafts effectively through holding the design in bits storehouse, increases the equipment stream time of the friction Stir that surpasses the 40mm aluminium sheet long period; The branch body structure of shaft shoulder axle has been avoided shaft shoulder axle and mixing needle axial compression to go into aluminium bits back producing bonding and can't dismantle, help the removing of aluminium bits, prolonged the service life of stirring needle shaft and shaft shoulder axle.
What should explain at last is: obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, can also make other multi-form variation or change on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the utility model.
Claims (2)
1. slab twin shaft axle friction stir welding between centers structure; It is characterized in that: comprise two stirring main shafts; Said pair of stirring main shaft is shaft shoulder axle and the split version that stirs the concentric installation of needle shaft; There is the gap between shaft shoulder axle and the stirring needle shaft, above the position, gap between shaft shoulder axle and the stirring needle shaft, is provided with one and holds the bits storehouse.
2. slab twin shaft axle friction stir welding between centers structure as claimed in claim 1, it is characterized in that: said shaft shoulder axle divides body structure to constitute by the identical two parts of structure, and two parts of shaft shoulder axle divide body structure to install along its center line symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201727537U CN202555969U (en) | 2012-04-23 | 2012-04-23 | Inter-shaft structure for double-shaft friction stir welding of heavy plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201727537U CN202555969U (en) | 2012-04-23 | 2012-04-23 | Inter-shaft structure for double-shaft friction stir welding of heavy plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202555969U true CN202555969U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201727537U Expired - Fee Related CN202555969U (en) | 2012-04-23 | 2012-04-23 | Inter-shaft structure for double-shaft friction stir welding of heavy plates |
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|---|---|
| CN (1) | CN202555969U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801817A (en) * | 2012-11-15 | 2014-05-21 | 上海航天设备制造总厂 | Double-speed rotating stirring tool for thick plate welding |
| CN106181022A (en) * | 2016-09-20 | 2016-12-07 | 江西理工大学 | A kind of stirring friction welding agitator head that can improve slab Base Heat input quantity |
| CN109922917A (en) * | 2016-11-01 | 2019-06-21 | 焊接研究院 | Method and apparatus for forming channel in workpiece |
| CN112122768A (en) * | 2020-09-23 | 2020-12-25 | 昆山哈工万洲焊接研究院有限公司 | Static shaft shoulder friction stir welding tool, welding device and welding system |
-
2012
- 2012-04-23 CN CN2012201727537U patent/CN202555969U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801817A (en) * | 2012-11-15 | 2014-05-21 | 上海航天设备制造总厂 | Double-speed rotating stirring tool for thick plate welding |
| CN106181022A (en) * | 2016-09-20 | 2016-12-07 | 江西理工大学 | A kind of stirring friction welding agitator head that can improve slab Base Heat input quantity |
| CN109922917A (en) * | 2016-11-01 | 2019-06-21 | 焊接研究院 | Method and apparatus for forming channel in workpiece |
| CN112122768A (en) * | 2020-09-23 | 2020-12-25 | 昆山哈工万洲焊接研究院有限公司 | Static shaft shoulder friction stir welding tool, welding device and welding system |
| CN112122768B (en) * | 2020-09-23 | 2024-03-15 | 苏州万智新能源科技有限公司 | Static shoulder friction stir welding tool, welding device and welding system |
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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: 20121128 Termination date: 20130423 |