CN211028538U - Special stirring head for friction stir surface modification - Google Patents
Special stirring head for friction stir surface modification Download PDFInfo
- Publication number
- CN211028538U CN211028538U CN201922176780.6U CN201922176780U CN211028538U CN 211028538 U CN211028538 U CN 211028538U CN 201922176780 U CN201922176780 U CN 201922176780U CN 211028538 U CN211028538 U CN 211028538U
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- Prior art keywords
- stirring
- supporter
- thread groove
- friction stir
- surface modification
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Abstract
The utility model discloses a special stirring head of friction stir surface modification, including the centre gripping handle, the both sides end of centre gripping handle is all opened jaggedly. The bottom of centre gripping handle is fixed with first supporter, and first supporter is the round platform type, and first supporter bottom is provided with the second supporter, and second supporter bottom is equipped with the transition body, and the transition body bottom is equipped with the shaft shoulder, and the shaft shoulder bottom mounting has the stirring needle. The stirring pin is hyperbolic, a thread groove and a plurality of grooves are formed in the side wall of the stirring pin, and the depth of each groove is larger than that of the thread groove. The utility model designs a first supporting body in a round platform shape, the design of the round platform shape is convenient for centering, and the assembly is convenient after centering, thereby preventing the condition that the non-coaxial of the main shaft and the stirring head causes accidental fracture, and improving the welding quality; and simultaneously, the utility model discloses the design has thread groove and recess, and the design of thread groove and recess has increased the metal plastify flow velocity of stirring process, has reduced the required time of welding, has improved welded efficiency.
Description
Technical Field
The utility model relates to a friction stir welding field, specificly is a special stirring head of friction stir surface modification.
Background
Friction stir welding is characterized in that a welded material is locally melted by heat generated by friction between a welding tool rotating at a high speed and a workpiece, and when the welding tool moves forwards along a welding interface, the plasticized material flows from the front part to the rear part of the welding tool under the action of the rotating friction force of the welding tool and forms a compact solid-phase welding seam under the extrusion of the welding tool.
The existing stirring head for friction welding is inconvenient to center and complex to assemble, and the problems of poor welding quality and the like caused by the fact that the main shaft and the stirring head are not coaxial and cause accidental fracture easily occur. Meanwhile, the metal plasticizing flowing speed at the stirring pin is low, the forming speed of a welding line is low, and the production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects mentioned in the background technology, the utility model aims to provide a special stirring head for friction stir surface modification, a first supporting body is fixed at the bottom of a clamping handle, the first supporting body is in a circular truncated cone shape, the circular truncated cone shape is convenient to center, and the assembly is convenient after the centering, so that the condition that the accidental fracture is caused because the main shaft and the stirring head are not coaxial is prevented, and the welding quality is improved;
and simultaneously, the utility model discloses the design has thread groove and recess, and the axial direction of thread groove is unanimous with the axial direction of stirring needle, and the recess sets the axial along the outer wall of stirring needle, and the design of thread groove and recess has increased the metal plastify flow velocity of stirring process, has reduced the required time of welding, has improved welded efficiency.
The purpose of the utility model can be realized by the following technical scheme:
the special stirring head for friction stir surface modification comprises a clamping handle, wherein notches are formed in two side ends of the clamping handle.
The bottom of centre gripping handle is fixed with first supporter, and first supporter is the round platform type, and first supporter bottom is provided with the second supporter, and second supporter bottom is equipped with the transition body, and the transition body bottom is equipped with the shaft shoulder, and the shaft shoulder bottom mounting has the stirring needle.
The stirring pin is hyperbolic, a thread groove and a plurality of grooves are formed in the side wall of the stirring pin, and the depth of each groove is larger than that of the thread groove.
Further, the second support body and the shaft shoulder are both cylindrical.
Further, the transition body is in a circular truncated cone shape.
Further, the first support body, the second support body, the transition body and the shaft shoulder are integrally formed.
Further, the axial direction of the thread groove is consistent with the axial direction of the stirring pin, and the groove is arranged along the outer wall of the stirring pin in the axial direction.
Further, the depth of the groove formed in the outer wall of the stirring pin is consistent.
The utility model has the advantages that:
1. the bottom of the clamping handle designed by the utility model is fixed with the first supporting body which is in a round table shape, the design of the round table shape is convenient for centering, the assembly is convenient after centering, the condition that the accident fracture is caused by the non-coaxial of the main shaft and the stirring head is prevented, and the welding quality is improved;
2. the first support body, the second support body, the transition body and the shaft shoulder are integrally formed, so that the firm strength is increased, and the risk of accidental fracture is reduced;
3. the utility model discloses the design has thread groove and recess, and the axial direction of thread groove is unanimous with the axial direction of stirring needle, and the recess sets the axial along the outer wall of stirring needle, and the design of thread groove and recess has increased the metal plastify flow velocity of stirring process, has reduced the required time of welding, has improved welded efficiency.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the stirring pin of the present invention;
fig. 3 is a schematic view of the overall structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
A special stirring head for friction stir surface modification is shown in figure 1 and comprises a clamping handle 1, wherein notches 11 are formed in two side ends of the clamping handle 1, and the clamping handle and an output end of a motor are convenient to fix.
The bottom of centre gripping handle 1 is fixed with first supporter 2, and first supporter 2 is the round platform type, and the design of round platform type is convenient for the centering, is convenient for assemble after the centering, prevents that main shaft and stirring head disalignment from causing the condition of unexpected fracture, has improved welding quality. The bottom of the first supporting body 2 is provided with a second supporting body 3, the bottom of the second supporting body 3 is provided with a transition body 4, the bottom of the transition body 4 is provided with a shaft shoulder 5, and the bottom of the shaft shoulder 5 is fixedly provided with a stirring pin 6.
Wherein, the second supporting body 3 and the shaft shoulder 5 are both cylindrical, and the transition body 4 is in a circular truncated cone shape. First supporter 2, second supporter 3, transition body 4 and shaft shoulder 5 integrated into one piece have increased firm intensity.
As shown in fig. 2, the probe 6 has a hyperbolic shape, and the side wall of the probe 6 is provided with a screw groove 61 and a plurality of grooves 62, respectively, and the depth of the groove 62 is greater than the depth of the screw groove 61. Wherein, the axial direction of the thread groove 61 is consistent with the axial direction of the stirring pin 6, the groove 62 is arranged along the outer wall of the stirring pin 6 in the axial direction, and the depth of the groove 62 arranged on the outer wall of the stirring pin 6 is consistent.
The design of the thread groove 61 and the groove 62 increases the metal plasticizing flowing speed in the stirring process, reduces the time required by welding and improves the welding efficiency.
When the device is used, the output end of a driving mechanism such as a motor is fixedly connected with the clamping handle 1, when the device works, the stirring head runs at a high speed and rubs a workpiece, the plasticized workpiece flows from the front part to the rear part of the stirring head under the action of the rotating friction force of the stirring head, and a compact solid-phase welding seam is formed under the extrusion of the stirring head.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. A special stirring head for friction stir surface modification comprises a clamping handle (1), and is characterized in that notches (11) are formed in both side ends of the clamping handle (1);
a first support body (2) is fixed at the bottom of the clamping handle (1), the first support body (2) is in a circular truncated cone shape, a second support body (3) is arranged at the bottom end of the first support body (2), a transition body (4) is arranged at the bottom end of the second support body (3), a shaft shoulder (5) is arranged at the bottom end of the transition body (4), and a stirring needle (6) is fixed at the bottom end of the shaft shoulder (5);
the stirring pin (6) is hyperbolic, a thread groove (61) and a plurality of grooves (62) are formed in the side wall of the stirring pin (6), and the depth of each groove (62) is larger than that of each thread groove (61).
2. The stirring head for friction stir surface modification according to claim 1, wherein the second support body (3) and the shoulder (5) are cylindrical.
3. The special stirring head for friction stir surface modification according to claim 1, wherein the transition body (4) is in the shape of a truncated cone.
4. The special stirring head for friction stir surface modification according to claim 1, wherein the first support body (2), the second support body (3), the transition body (4) and the shaft shoulder (5) are integrally formed.
5. The special stirring head for friction stir surface modification according to claim 1, wherein the axial direction of the thread groove (61) is the same as the axial direction of the stirring pin (6), and the groove (62) is arranged axially along the outer wall of the stirring pin (6).
6. A pin tumbler for friction stir surface modification according to claim 5, wherein the grooves (62) are cut to a uniform depth in the outer wall of the pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176780.6U CN211028538U (en) | 2019-12-05 | 2019-12-05 | Special stirring head for friction stir surface modification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922176780.6U CN211028538U (en) | 2019-12-05 | 2019-12-05 | Special stirring head for friction stir surface modification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211028538U true CN211028538U (en) | 2020-07-17 |
Family
ID=71543650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922176780.6U Expired - Fee Related CN211028538U (en) | 2019-12-05 | 2019-12-05 | Special stirring head for friction stir surface modification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211028538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059262A (en) * | 2021-04-01 | 2021-07-02 | 航天工程装备（苏州）有限公司 | Friction stir welding subassembly |
-
2019
- 2019-12-05 CN CN201922176780.6U patent/CN211028538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059262A (en) * | 2021-04-01 | 2021-07-02 | 航天工程装备（苏州）有限公司 | Friction stir welding subassembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20201205 |