CN215034447U - Friction stir welding stirring head - Google Patents
Friction stir welding stirring head Download PDFInfo
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- CN215034447U CN215034447U CN202120944087.3U CN202120944087U CN215034447U CN 215034447 U CN215034447 U CN 215034447U CN 202120944087 U CN202120944087 U CN 202120944087U CN 215034447 U CN215034447 U CN 215034447U
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- shaft shoulder
- shoulder connector
- friction stir
- stir welding
- locking
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Abstract
The utility model relates to a friction stir welding stirring head relates to friction stir welding's field, including the holding body, holding body fixedly connected with shaft shoulder connector, the shaft shoulder connector is cavity and the one end that deviates from the holding body is the opening setting, shaft shoulder connector open end slides and wears to be equipped with the regulation pole, the one end fixedly connected with stirring needle that the regulation pole stretches out the shaft shoulder connector, shaft shoulder connector lateral wall fixedly connected with is used for locking the locking mechanical system who adjusts the pole position, the locking mechanical system joint is in adjusting the pole. This application has the effect that improves welding efficiency.
Description
Technical Field
The application relates to the field of friction stir welding, in particular to a friction stir welding stirring head.
Background
Friction welding is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source. The friction stir welding process is characterized in that a stirring pin at the front end of a stirring head is inserted into a joint of a workpiece, the stirring head rotates at a high speed and advances simultaneously, friction heat is generated through friction between the stirring pin and a plate, metal around the stirring pin is plasticized and generates viscoplastic flow, and welding is completed.
Chinese patent with publication number CN205393779U discloses a friction stir welding stirring head, including stirring head shaft shoulder connector, the stirring pin is located stirring head shaft shoulder connector below, stirring head shaft shoulder connector bottom surface be an inclined plane, stirring head shaft shoulder connector bottom surface indicates the contact surface of shaft shoulder connector and welding workpiece, the direction on inclined plane do: when the stirring pin is downward, the inclined plane is inclined from the center of the bottom surface to the outside and upward, and the included angle between the inclined plane and the vertical line of the axis of the stirring head is 1-10 degrees.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when workpieces with different thicknesses are welded, stirring heads with different needle lengths need to be replaced, and certain time is needed for replacing the stirring heads, so that the welding efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
In order to improve welding efficiency, the application provides a friction stir welding tool.
The application provides a friction stir welding stirring head adopts following technical scheme:
the utility model provides a friction stir welding stirring head, includes the holding body, holding body fixedly connected with shaft shoulder connector, the shaft shoulder connector is cavity and the one end that deviates from the holding body is the opening setting, shaft shoulder connector open end slides and wears to be equipped with the regulation pole, the one end fixedly connected with stirring needle that the pole stretches out the shaft shoulder connector is adjusted, shaft shoulder connector lateral wall fixedly connected with is used for locking the locking mechanical system who adjusts the pole position, locking mechanical system joint is in adjusting the pole.
Through adopting above-mentioned technical scheme, can pull out or move the regulation pole from the shaft shoulder connector open end to the work piece that makes the extension of adjusting the pole can adjust according to different thickness, and fix the regulation pole through locking mechanical system, thereby make the length of stirring needle fixed, convenient the regulation improves welding efficiency.
Optionally, locking mechanical system includes fixed block of fixed connection in shaft shoulder connector lateral wall, the both ends of fixed block are rotated respectively and are connected with the locking piece, the window that supplies the locking piece joint is seted up respectively to shaft shoulder connector both sides lateral wall, just the window is seted up with shaft shoulder connector inner chamber intercommunication, adjust the pole and set up a plurality of locking grooves that supply the locking piece joint, the locking piece is provided with fixed subassembly.
Through adopting above-mentioned technical scheme, adjusting the position of pole, making locking groove and window align, later rotating two locking pieces, make the locking piece rotate to the window in, locking piece joint is in locking inslot simultaneously, later rethread fixed subassembly is fixed with two locking pieces, makes two locking pieces will adjust pole rigidity to make the rigidity of stirring pin, make the stirring pin can insert the work piece seam crossing to different thickness.
Optionally, the fixing assembly includes a fixing hole formed in an end portion of the locking block, and a bolt is arranged in the fixing hole in a penetrating manner.
Through adopting above-mentioned technical scheme, after locking the locking piece joint in locking inslot, wear to locate two fixed orificess with the bolt to with two locking piece rigidity, prevent that the locking piece from removing, make the locking piece can stabilize the joint in adjusting the pole.
Optionally, the stirring pin is round platform form setting, the terminal surface border of stirring pin is the fillet structure setting, the stirring pin outer wall has been seted up and has been the spiral helicine guiding gutter.
Through adopting above-mentioned technical scheme, the high-speed rotatory seam crossing that inserts two work pieces of stirring pin is the round platform form through setting up the stirring pin, prevents that the stirring pin from because being heated when getting into the work piece and breaking, secondly at the high-speed rotatory in-process of stirring pin, and the solder passes through the guiding gutter water conservancy diversion to the welding seam bottom, prevents that two work piece welding seam bottoms from producing the cavity, can make welding effect more stable from this.
Optionally, the end face of the stirring pin is fixedly connected with an insertion part, and the insertion part is arranged in a hemispherical shape.
By adopting the technical scheme, the stirring pin drives the insertion part to rotate at a high speed and contact the joint of the two workpieces, and the insertion part rotates at a hemispherical shape at a high speed, so that friction heat is generated between the insertion part and the workpieces, and metal around the insertion part is plasticized, so that the stirring pin can enter the joint of the two workpieces more smoothly.
Optionally, the end surface of the shaft shoulder connector facing the stirring pin is provided with a concentric groove.
By adopting the technical scheme, the shaft shoulder connector can be prevented from splashing and throwing away the solder in a high-speed rotation mode by arranging the concentric grooves, the generation of flash at the edges of two sides of the welding line is reduced, and meanwhile, the concentric grooves guide the solder to the end part of the stirring pin, so that the welding line between two workpieces is more stable.
Optionally, the diameter of the shoulder connector gradually decreases in a direction away from the clamping body.
Through adopting above-mentioned technical scheme, because the one end volume that the shaft shoulder connector is close to the pin mixer is less than the one end volume that the shaft shoulder connector is close to the clamping part to at the rotatory in-process of stirring head, the decomposable heat delays thermal transmission, increases the durability of stirring head.
Optionally, the outer wall of the shaft shoulder connector is provided with a spiral heat dissipation groove.
By adopting the technical scheme, heat can be effectively decomposed, the heat transfer is delayed, the heat emission is accelerated, and the inherent hardness of the shaft shoulder connector material is kept from being reduced, so that the durability of the stirring head is effectively improved.
In summary, the present application includes at least one of the following beneficial technical effects:
the adjusting rod can be pulled out or moved in from the opening end of the shaft shoulder connector, so that the extending amount of the adjusting rod can be adjusted according to workpieces with different thicknesses, the adjusting rod is fixed through the locking mechanism, the length of the stirring needle is fixed, adjustment is convenient, and welding efficiency is improved.
The seam crossing of two work pieces is inserted in the high-speed rotation of stirring pin, is the round platform form through setting up the stirring pin, prevents that the stirring pin from because being heated when getting into the work piece and breaking, secondly at the high-speed rotatory in-process of stirring pin, and the solder can pass through the guiding gutter water conservancy diversion, prevents to produce in two work piece welding seams cavitys, can make welding effect more stable from this.
Through setting up concentric groove, can prevent that the high-speed rotation of shaft shoulder connector from splashing and throwing away the solder, reduce welding seam both sides edge and produce the overlap, the concentric groove is with solder drainage to stirring needle department simultaneously, makes the welding seam between two work pieces more firm.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
FIG. 2 is a schematic structural diagram of a shoulder connector in an embodiment of the present application.
FIG. 3 is a schematic structural diagram of a stirring pin in the embodiment of the present application.
Fig. 4 is a schematic structural diagram of an adjusting rod in the embodiment of the application.
Description of reference numerals: 1. a clamping body; 2. a shoulder connector; 21. a heat sink; 22. adjusting a rod; 3. a locking mechanism; 4. a stirring pin; 5. an insertion portion; 6. a diversion trench; 7. a concentric groove; 31. a fixed block; 32. a locking block; 33. a window; 34. a locking groove; 8. a fixing assembly; 81. a fixing hole; 82. and (4) bolts.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a friction stir welding stirring head. Referring to fig. 1 and 2, a friction stir welding tool includes a clamping body 1, and the clamping body 1 can be sleeved in a spindle jacket of a friction welding machine, so that the clamping body 1 is fixedly matched with the spindle jacket, and the spindle can drive the clamping body 1 to rotate. The one end an organic whole that the cramping body 1 deviates from the main shaft is connected with the cross-section and is circular shape shaft shoulder connector 2, and cramping body 1 is cylindric transitional coupling with 2 tip of shaft shoulder connector, and the diameter of shaft shoulder connector 2 reduces along the direction that deviates from cramping body 1 gradually, and 2 outer walls of shaft shoulder connector are seted up and are spiral helicine radiating groove 21. Shaft shoulder connector 2 is cavity and the one end that deviates from clamping body 1 is the opening setting, and 2 open ends of shaft shoulder connector slide and wear to be equipped with regulation pole 22, and adjust pole 22 and be cylindric setting, and adjust pole 22 and be coaxial with shaft shoulder connector 2. The shoulder connecting body 2 is welded with a locking mechanism 3 for limiting the position of the adjusting lever 22.
Referring to fig. 2 and 3, the one end an organic whole that adjusts the pole 22 and stretch out the inner chamber of shaft shoulder connector 2 is connected with coaxial stirring needle 4, and stirring needle 4 is round platform form setting, and the one side that 4 diameters of stirring needle are big is connected in the terminal surface of adjusting pole 22, and 4 terminal surface borders of stirring needle are the fillet structure setting simultaneously, and stirring needle 4 deviates from the terminal surface an organic whole that adjusts pole 22 and is hemispherical portion of inserting 5. The outer wall of the stirring pin 4 is provided with a spiral diversion trench 6 along the circumferential direction. The shaft shoulder connector 2 is provided with a plurality of concentric grooves 7 towards the end surface of the stirring pin 4, the plurality of concentric grooves 7 use the axis of the stirring pin 4 as the center of a circle, and the radius of the plurality of concentric grooves 7 is gradually increased.
Referring to fig. 1, 2 and 3, locking mechanical system 3 is including welding in the fixed block 31 of shaft shoulder connector 2 outer wall, and fixed block 31 is located shaft shoulder connector 2 and is cylindric position, and the both ends of fixed block 31 articulate respectively has locking block 32, and the rotation direction of locking block 32 is perpendicular with the axial of shaft shoulder connector 2. The lateral walls of the two sides of the shaft shoulder connector 2 are respectively provided with a window 33 for clamping the locking block 32, and the window 33 is communicated with the inner cavity of the shaft shoulder connector 2. The side walls of the two sides of the adjusting rod 22 are respectively provided with a plurality of locking grooves 34 for the locking blocks 32 to be clamped, and the locking grooves 34 are arranged along the axial direction of the adjusting rod 22 at equal intervals.
Referring to fig. 1, the one end that locking block 32 deviates from fixed block 31 is provided with fixed subassembly 8, and fixed subassembly 8 wears to be equipped with bolt 82 including seting up in the fixed orifices 81 that locking block 32 deviates from fixed block 31 one end in the fixed orifices 81 to through wearing to locate bolt 82 in the fixed orifices 81 of two locking blocks 32, and then with two locking block 32 rigidity, make the stable joint of locking block 32 in locking inslot 34. Secondly, the length of the stirring pin 4 is the minimum extension amount of the end part of the stirring pin 4 extending out of the opening of the shaft shoulder connector 2, so that the stirring pin 4 cannot move to the inner cavity of the shaft shoulder connector 2, and solder is prevented from flying into the inner cavity of the shaft shoulder connector 2 from the opening of the shaft shoulder connector 2.
The implementation principle of the embodiment of the application is as follows: when carrying out friction welding to the work piece of different thickness, accessible removes regulation pole 22, make the stirring needle 4 stretch out the work piece that length is fit for corresponding thickness, align locking groove 34 and window 33 simultaneously, later can rotate locking block 32, make locking block 32 joint in locking groove 34, and wear to locate in fixed orifices 81 with bolt 82, make locking block 32 rigidity, thereby make regulation pole 22 rigidity, make stirring needle 4 rigidity, and then need not change whole stirring head, save time, welding efficiency has been improved, secondly, stirring needle 4 high-speed rotatory and insert the seam crossing of two work pieces, the solder can pass through the water conservancy diversion of guiding gutter 6, it produces in preventing two work piece welding seams cavitys, can make welding effect more stable from this.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A friction stir welding tool, comprising: including the holding body (1), holding body (1) fixedly connected with shaft shoulder connector (2), shaft shoulder connector (2) are cavity and the one end that deviates from holding body (1) is the opening setting, shaft shoulder connector (2) open end slides and wears to be equipped with regulation pole (22), adjust one end fixedly connected with stirring needle (4) that pole (22) stretches out shaft shoulder connector (2), shaft shoulder connector (2) lateral wall fixedly connected with is used for locking mechanical system (3) of adjusting pole (22) position, locking mechanical system (3) joint is in adjusting pole (22).
2. A friction stir welding tool according to claim 1 wherein: locking mechanical system (3) are including fixed block (31) of fixed connection in shaft shoulder connector (2) lateral wall, the both ends of fixed block (31) are rotated respectively and are connected with locking block (32), window (33) that supply locking block (32) joint are seted up respectively to shaft shoulder connector (2) both sides lateral wall, just window (33) are seted up with shaft shoulder connector (2) inner chamber intercommunication, adjust pole (22) and set up locking groove (34) of a plurality of confession locking block (32) joints, locking block (32) are provided with fixed subassembly (8).
3. A friction stir welding tool according to claim 2 wherein: the fixing assembly (8) comprises a fixing hole (81) formed in the end portion of the locking block (32), and a bolt (82) penetrates through the fixing hole (81).
4. A friction stir welding tool according to claim 1 wherein: the stirring pin (4) is round platform form setting, the terminal surface border of stirring pin (4) is the fillet structure setting, stirring pin (4) outer wall has been seted up and has been spiral helicine guiding gutter (6).
5. A friction stir welding tool according to claim 4 wherein: the end face of the stirring needle (4) is fixedly connected with an insertion part (5), and the insertion part (5) is arranged in a hemispherical shape.
6. A friction stir welding tool according to claim 1 wherein: the end surface of the shaft shoulder connector (2) facing the stirring needle (4) is provided with a concentric groove (7).
7. A friction stir welding tool according to claim 1 wherein: the diameter of the shaft shoulder connecting body (2) is gradually reduced along the direction departing from the clamping body (1).
8. A friction stir welding tool according to claim 1 wherein: the outer wall of the shaft shoulder connecting body (2) is provided with a spiral radiating groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120944087.3U CN215034447U (en) | 2021-05-06 | 2021-05-06 | Friction stir welding stirring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120944087.3U CN215034447U (en) | 2021-05-06 | 2021-05-06 | Friction stir welding stirring head |
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| Publication Number | Publication Date |
|---|---|
| CN215034447U true CN215034447U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120944087.3U Active CN215034447U (en) | 2021-05-06 | 2021-05-06 | Friction stir welding stirring head |
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| CN (1) | CN215034447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115740726A (en) * | 2022-11-10 | 2023-03-07 | 哈尔滨工业大学 | Floating type friction stir welding device and method for realizing self repair of solid-phase material increase |
| CN116511687A (en) * | 2023-07-05 | 2023-08-01 | 合肥工业大学 | Split type friction stir welding stirring head with adjustable stirring pin length |
-
2021
- 2021-05-06 CN CN202120944087.3U patent/CN215034447U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115740726A (en) * | 2022-11-10 | 2023-03-07 | 哈尔滨工业大学 | Floating type friction stir welding device and method for realizing self repair of solid-phase material increase |
| CN116511687A (en) * | 2023-07-05 | 2023-08-01 | 合肥工业大学 | Split type friction stir welding stirring head with adjustable stirring pin length |
| CN116511687B (en) * | 2023-07-05 | 2023-10-03 | 合肥工业大学 | Split type friction stir welding stirring head with adjustable stirring pin length |
| US11969818B1 (en) | 2023-07-05 | 2024-04-30 | Hefei University Of Technology | Split-type friction stir welding tool with adjustable stirring pin length |
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