CN219632816U - Static shaft shoulder stirring head capable of reducing inner cavity accumulation - Google Patents
Static shaft shoulder stirring head capable of reducing inner cavity accumulation Download PDFInfo
- Publication number
- CN219632816U CN219632816U CN202320921307.XU CN202320921307U CN219632816U CN 219632816 U CN219632816 U CN 219632816U CN 202320921307 U CN202320921307 U CN 202320921307U CN 219632816 U CN219632816 U CN 219632816U
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- CN
- China
- Prior art keywords
- stirring head
- shaft shoulder
- welding
- inner cavity
- shoulder
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- 238000003756 stirring Methods 0.000 title claims abstract description 59
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 238000009825 accumulation Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 31
- 230000007704 transition Effects 0.000 claims abstract description 15
- 239000000523 sample Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 10
- 239000004411 aluminium Substances 0.000 abstract description 7
- 239000011797 cavity material Substances 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000001398 aluminium Chemical class 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The utility model relates to the technical field of friction stir welding, in particular to a static shaft shoulder stirring head capable of reducing inner cavity accumulation. The stirring head comprises a stirring head body and a shaft sleeve matched with the stirring head body to be installed, wherein the stirring head body comprises a clamping part, a transition part, a shaft shoulder part and a processing function part which are sequentially arranged, a first connecting part which is of an arc-shaped three-section structure is further connected between the transition part and the shaft shoulder part, and a layer of threads is arranged on the outer wall of the shaft shoulder part. The utility model has the advantages that: the friction surface is increased through the arc three-section surface, so that the friction force is increased, and the fluidity of the material is stronger and more sufficient; through increasing the screw thread in shaft shoulder portion outside, can reduce the aluminium material and arrange into the axle sleeve inner chamber when welding so that reduce the aluminium material and arrange into the axle sleeve inner chamber when welding, improved the serious problem of axle sleeve inner chamber crowded material in the welding process, also improved the welding seam simultaneously and lack the problem of aluminium material.
Description
Technical Field
The utility model relates to the technical field of friction stir welding, in particular to a static shaft shoulder stirring head capable of reducing inner cavity accumulation.
Background
Friction stir welding is a non-fusion welding method. The method utilizes a special tool, namely a stirring head, which rotates at a high speed and is inserted into a piece to be welded, the stirring head and the piece to be welded generate a large amount of friction heat, when the metal is in a molten state, the metal starts to advance, the stirring head guides the molten metal to the rear part of the metal in the welding process, and then the molten metal is fused through a stirring probe at the end part of the stirring head, and a compact welding seam is formed by forging under the pressure of the top end. The core of the friction stir welding technology is a stirring head, and the friction stir welding can realize the welding of materials such as aluminum alloy, copper alloy, magnesium alloy, titanium alloy and the like.
In the prior art, in the welding process, because the static shaft shoulder does not rotate, aluminum materials enter the inner cavity through the fit clearance between the shaft shoulder of the stirring head and the shaft sleeve, along with the extension of welding time, the aluminum materials in the inner cavity of the shaft sleeve are seriously accumulated, the stirring head and the shaft sleeve generate serious friction, so that the welding efficiency is reduced, and the conventional circular stirring pin welded joint in the prior art has serious tunnel type defects, so that the static shaft shoulder stirring head capable of reducing the accumulation of the inner cavity is required to be designed to solve the problems.
Disclosure of Invention
The utility model aims to provide a static shaft shoulder stirring head capable of reducing inner cavity accumulation materials so as to overcome the defects in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
can reduce quiet shoulder stirring head of inner chamber long-pending material, it includes stirring head body, cooperation stirring head body installation's axle sleeve, stirring head body is including clamping part, transition portion, shoulder portion and the processing function portion that sets gradually, its characterized in that: and a first connecting part with an arc three-section structure is further connected between the transition part and the shaft shoulder part, and a layer of threads is arranged on the outer wall of the shaft shoulder part.
Preferably, the processing functional part comprises a stirring probe which is arranged at the central position of the bottom surface of the shaft shoulder part and is in a conical thread shape, and a circular groove which is arranged at the bottom surface of the shaft shoulder part by taking the stirring probe as a circle center.
Preferably, a first arc-shaped connecting part is further arranged at the bottom end of the transition part.
Preferably, the clamping part is a cylinder, and a side fixing surface for connecting a fastener is processed on one side of the upper end shaft part.
Preferably, the shaft sleeve is also provided with a plurality of discharging holes.
The beneficial effects of the utility model are as follows: according to the technical scheme, the first connecting part with the arc-shaped three-section structure is further connected between the transition part and the shaft shoulder part, the first connecting part with the arc-shaped three-section structure in the welding process enables plastic metal in the welding seam to flow more fully, friction surfaces are increased through the arc-shaped three-section structure, so that friction force is increased, and flowability of materials is stronger and more sufficient; through increasing the screw thread outside shaft shoulder portion, the waste material is extruded into the inner chamber through the clearance after, and the material is discharged along the screw thread again, outwards discharges from the relief hole in the axle sleeve at last, plays the radiating effect simultaneously to this aluminium material row is gone into the axle sleeve inner chamber when reducing the welding, has improved the serious problem of axle sleeve inner chamber crowded material in the welding process, has also improved the problem that the welding seam lacks the aluminium material simultaneously.
Drawings
FIG. 1 is a schematic view of a static shoulder stirring head capable of reducing cavity accumulation in accordance with the present utility model;
FIG. 2 is a side view of a static shoulder stirring head body of the present utility model capable of reducing cavity material accumulation;
in the figure: 1. a stirring head body; 111. a side fixing surface; 2. a shaft sleeve; 21. a discharge hole; 11. a clamping part; 12. a transition section; 121. a first arc-shaped connection portion; 13. a shaft shoulder; 14. a processing function section; 15. a first connection portion; 4. stirring the probe; 131. and (5) screw threads.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 to 2, a static shoulder stirring head capable of reducing inner cavity accumulation materials comprises a stirring head body 1, a shaft sleeve 2 matched with the stirring head body 1, wherein the stirring head body 1 comprises a clamping part 11, a transition part 12, a shaft shoulder part 13 and a processing function part 14 which are sequentially arranged, the processing function part 14 comprises a stirring probe 144 which is arranged at the center of the bottom surface of the shaft shoulder part 3 and takes a conical thread shape, a circular groove which is arranged at the bottom surface of the shaft shoulder part 13 by taking the stirring probe as the center of a circle, a layer of threads 131 is arranged on the outer wall of the shaft shoulder part 13, the inner cavity is formed by the fact that the static shaft shoulder does not rotate, aluminum materials enter through the gap between the stirring head shaft shoulder and the shaft sleeve, the aluminum materials in the inner cavity of the shaft sleeve are seriously accumulated along with the extension of welding time, the welding efficiency is reduced, after waste materials are extruded into the inner cavity through the gap, the threads are discharged, and finally, the materials are discharged outwards from a discharging hole in the shaft sleeve and simultaneously, when the heat dissipation effect is reduced, the problem of the aluminum material is also discharged into the inner cavity is solved, and the welding problem is solved, and the problem of the welding problem is solved.
A first connecting part 15 with an arc three-section structure is also connected between the transition part 12 and the shaft shoulder part 13. The prior art joints welded with conventional round stirring pins suffer from serious tunnel-type defects, mainly due to low plasticization of the material or insufficient flow of the plastic material. The triangular stirring pin is adopted for welding the joint, so that plastic metal in the welding line flows more fully in the welding process, and the friction surface is increased through the arc three-section surface, so that the friction force is increased, and the fluidity of the material is stronger and more sufficient;
the first connecting portion 15 is a top-shaped arc three-section surface, and the first connecting portion 15 further increases the strength of the whole stirring head, so that abrasion is reduced, and the practical service life is prolonged.
In order to facilitate the installation of the matching shaft sleeve 2 and prevent the installation interference, a first arc-shaped connecting part 121 is arranged at the bottom end of the transition part 12, and meanwhile, the rigidity of the stirring pin is increased.
The clamping part 11 is a cylinder, and a side fixing surface 111 for connecting a fastener is processed on one side of the upper end shaft part, so that the stirring head and the friction stir welding tool handle are conveniently fastened by jackscrews, and rotation is prevented in the working process.
The transition 2 is cylindrical to increase the rigidity of the overall structure.
The circular grooves play a role in gathering materials in the rotating process, and then are matched with the stirring probe 144 for rotating, so that the stirring probe 144 and the double circular grooves are matched for use to achieve the gathering and gathering capacity, and materials are fully combined.
The shaft sleeve 2 is also provided with a plurality of discharge holes 21 for discharging redundant waste materials.
The welding joint has the advantages that the first connecting part with the arc-shaped three-section structure is further connected between the transition part and the shaft shoulder part, the first connecting part with the arc-shaped three-section structure in the welding process enables plastic metal in the welding joint to flow more fully, friction surfaces are increased through the arc-shaped three-section, and therefore friction force is increased, and flowability of materials is stronger and more sufficient; through increasing the screw thread outside shaft shoulder portion, the waste material is extruded into the inner chamber through the clearance after, and the material is discharged along the screw thread again, outwards discharges from the relief hole in the axle sleeve at last, plays the radiating effect simultaneously to this aluminium material row is gone into the axle sleeve inner chamber when reducing the welding, has improved the serious problem of axle sleeve inner chamber crowded material in the welding process, has also improved the problem that the welding seam lacks the aluminium material simultaneously.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. Can reduce quiet shoulder stirring head of inner chamber long-pending material, it includes stirring head body, cooperation stirring head body installation's axle sleeve, stirring head body is including clamping part, transition portion, shoulder portion and the processing function portion that sets gradually, its characterized in that: and a first connecting part with an arc three-section structure is further connected between the transition part and the shaft shoulder part, and a layer of threads is arranged on the outer wall of the shaft shoulder part.
2. The static shoulder stirring head capable of reducing accumulation in an inner cavity according to claim 1, wherein: the processing function part comprises a stirring probe which is arranged at the center of the bottom surface of the shaft shoulder part and is in a conical thread shape, and a circular groove which is arranged on the bottom surface of the shaft shoulder part by taking the stirring probe as the center of a circle.
3. The static shoulder stirring head capable of reducing accumulation in an inner cavity according to claim 1, wherein: the bottom end of the transition part is also provided with a first arc-shaped connecting part.
4. The static shoulder stirring head capable of reducing accumulation in an inner cavity according to claim 1, wherein: the clamping part is a cylinder, and a side fixing surface for connecting a fastener is processed on one side of the upper end shaft part.
5. The static shoulder stirring head capable of reducing accumulation in an inner cavity according to claim 1, wherein: the shaft sleeve is also provided with a plurality of discharging holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320921307.XU CN219632816U (en) | 2023-04-23 | 2023-04-23 | Static shaft shoulder stirring head capable of reducing inner cavity accumulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320921307.XU CN219632816U (en) | 2023-04-23 | 2023-04-23 | Static shaft shoulder stirring head capable of reducing inner cavity accumulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219632816U true CN219632816U (en) | 2023-09-05 |
Family
ID=87818429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320921307.XU Active CN219632816U (en) | 2023-04-23 | 2023-04-23 | Static shaft shoulder stirring head capable of reducing inner cavity accumulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219632816U (en) |
-
2023
- 2023-04-23 CN CN202320921307.XU patent/CN219632816U/en active Active
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