CN208787747U - A kind of floating type double static shaft shoulder stirring-heads - Google Patents
A kind of floating type double static shaft shoulder stirring-heads Download PDFInfo
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- CN208787747U CN208787747U CN201820869838.8U CN201820869838U CN208787747U CN 208787747 U CN208787747 U CN 208787747U CN 201820869838 U CN201820869838 U CN 201820869838U CN 208787747 U CN208787747 U CN 208787747U
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- shaft shoulder
- coil
- mixing needle
- stirring
- heads
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Abstract
The utility model relates to a kind of floating type double static shaft shoulder stirring-heads, including mixing needle, fixation and the upper shaft shoulder and the lower shaft shoulder that are located in the middle part of mixing needle, are set in mixing needle top and provide the pressing unit of pressure for the upper shaft shoulder, are set in mixing needle lower part and provide the rising unit of lift for the lower shaft shoulder.Compared with prior art, the utility model is by setting pressing unit and rises unit, the upper shaft shoulder and the lower shaft shoulder are pushed down to two workpiece to be welded, and when mixing needle is when high speed rotation, the upper shaft shoulder and the lower shaft shoulder will not rotate, therefore the situation that high-speed friction will not occur with workpiece in the welding process, will not be such that workpiece deforms, to ensure that the quality of weld seam.
Description
Technical field
The utility model relates to Friction welding technique fields, and in particular to a kind of floating type double static shaft shoulder stirring-heads.
Background technique
Agitating friction welds (Friction Stir Welding, FSW) and is used as a kind of Solid-phase welding method, advanced with its, green
The safe and reliable process characteristic of color obtains increasingly extensive application in aviation day, rail traffic auto manufacturing.Agitating friction
Weldering is widely applied to the low melting points such as aluminium alloy and magnesium, in high performance Metal Material Welding, avoids conventional soldering techniques
The defects of stomata for generating when welding such material material, crackle, weldquality is enhanced, reduction connects deformation, saves wlding material.
In order to guarantee that the mixing needle of welding process can have sufficient lower pressure to soften workpiece and be pressed into inside, agitating friction
Welding equipment should have biggish load capacity.Simultaneously for welding precision, need to carry out true clamping preceding, and back is also
Rigid support is needed, thus the workpiece of complex large-sized structure and specific position can not be welded.In addition, general agitating friction weldering due to
Heat input is easy to produce defect mainly from workpiece surface, the big weldquality of heat input gradient.Therefore, double-shaft shoulder agitating friction
Welding technology materially increases the quality of the flexibility and weld seam that connect.Double-shaft shoulder stirring-head passes through needle chain by upper and lower two
It connects, and is played a supporting role by upper and lower two shaft shoulders to workpiece.
Currently, gap of the double-shaft shoulder stirring-head in the welding process between the upper and lower shaft shoulder immobilizes.So in welding process
In encounter and block the workpiece of perhaps Varying-thickness and will cause the damage of entire stirring-head or overlap and other issues occurs for weld seam,
And reduce connector bearing capacity；Existing floating double-shaft shoulder stirring-head is by lower shaft shoulder passive adaptation thickness of workpiece or leads to
It crosses armstrong's patent and adjusts the gap between the upper and lower shaft shoulder to realize the change in gap.It so in the welding process cannot be come between realizing
The change of gap, and changed by the active of upper and lower pivot clearance to control the upper and lower shaft shoulder to the pressure of workpiece, it is same in this way not locate
Thick gap come control the upper and lower shaft shoulder to the pressure of workpiece do not have active control will cause same workpiece do not exist together weldquality it is different and
Reduce connector bearing capacity.
Traditional stirring-head shaft shoulder rotates simultaneously with mixing needle, and the friction between the shaft shoulder and welded material is main heat production side
Formula during rotating welding, can generate overlap, and make plastifying material from rotation at seam due to the shaft shoulder and mixing needle one
Mixing needle two sides squeeze out, and reserve recess and heat input gradient is big.These can all generate certain shadow to seam organization and performance
It rings.
Utility model content
The purpose of this utility model is exactly to provide a kind of welding quality to overcome the problems of the above-mentioned prior art
Stable floating type double static shaft shoulder stirring-heads.
The purpose of this utility model can be achieved through the following technical solutions: a kind of floating type double static shaft shoulder stirrings
Head, the stirring-head include mixing needle, fixation and the upper shaft shoulder and the lower shaft shoulder that are located in the middle part of mixing needle, are set in mixing needle top simultaneously
The pressing unit of pressure is provided for the upper shaft shoulder, is set in mixing needle lower part and provides the rising unit of lift for the lower shaft shoulder, is welded
When, two piece-holders to be welded by pressing unit and rise unit for the upper shaft shoulder between the upper shaft shoulder and the lower shaft shoulder
The two sides up and down of workpiece are pressed on the lower shaft shoulder, the mixing needle is plugged in the gap between two workpiece to be welded, stirs
It mixes needle to rotate and move along the gap between two workpiece to be welded, until completing welding.The utility model passes through setting
The upper shaft shoulder and the lower shaft shoulder are pushed down two workpiece to be welded by pressing unit and rising unit, and when mixing needle is revolved in high speed
When turning, the upper shaft shoulder and the lower shaft shoulder will not be rotated, therefore high-speed friction will not occur with workpiece in the welding process
Situation will not be workpiece deformation, to ensure that the quality of weld seam.
The pressing unit includes the mixing needle shell for the inverted T font for being set in mixing needle top, is set in mixing needle shell
The coil in outside, the mixing needle shell include the vertical portion being axially arranged along mixing needle and setting in vertical portion bottom and
The horizontal part parallel with vertical portion, the coil is set on the outside of vertical portion, and the top of the bottom of coil and horizontal part
Contact, the upper shaft shoulder are fixedly connected with the bottom end of horizontal part.
The top and bottom end of the vertical portion pass through upper cylinder roller bearing and lower cylinder roller bearing and mixing needle respectively
Connection.Pass through two cylinder roller bearings, it is ensured that when rotating at high speed, the upper shaft shoulder will not rotate mixing needle.
Coil shell is arranged on the outside of the coil, the bottom of the coil shell is fixed on the upper of horizontal part
End.Setting shell is to prevent the generation of electric shock in order to which coil is isolated from the outside world.
The lower shaft shoulder is in convex shape, the accommodating chamber of abutting part and bottom including top, during the accommodating chamber is
Hollow structure.
The rising unit includes the straight line for being set in the lower coil of mixing needle lower part and being fixed on mixing needle bottom
Bearing, the lower coil is located in the accommodating chamber, and when not working, the lower shaft shoulder is supported at the top of linear bearing.This is practical
In novel, mixing needle and mixing needle hull shape form an electromagnet at iron core, and with coil, and lower coil and mixing needle form one
A electromagnet, in welding, coil and lower coil are powered, and can produce magnetic field, so that the upper shaft shoulder pushes, the lower shaft shoulder is mentioned
It rises.
The bottom end of the mixing needle is equipped with fixture nut, and the fixture nut passes through the bottom of elastic washer and linear bearing
Portion's contact.It is to descend the shaft shoulder and linear bearing to fall down in order to prevent, and it is in order to prevent that elastic washer, which is arranged, that fixture nut, which is arranged,
With fixture nut rigid contact occurs for linear bearing in the welding process, to increase the service life of linear bearing.
The two sides of the lower shaft shoulder are symmetrically arranged with connecting rod, and the connecting rod is equipped with idler wheel, and the idler wheel is most
High point is flushed with the highest point of the abutting part of the lower shaft shoulder.Idler wheel is set, is to provide a fulcrum to workpiece in welding, prevents and treats work
Part occurs upper and lower bounce and influences welding quality.
The coil and lower coil uses the coiling of π type, and the magnetic field that coil and lower coil generate after energization is identical.
Since the magnetism that the electromagnet that π type coiling obtains generates after powered up is stronger.Since coil and lower coil generate after being powered
Magnetic field is identical, so the magnetic field of coil bottom and the magnetic field at the top of lower coil are just on the contrary, there is a natural attraction between the sexes.
Compared with prior art, the beneficial effects of the utility model are embodied in following several respects:
(1) the utility model by setting pressing unit and rises unit, the upper shaft shoulder and the lower shaft shoulder is pushed down to be welded
Two workpiece, and when mixing needle is when high speed rotation, the upper shaft shoulder and the lower shaft shoulder will not rotate, therefore weld
The situation that high-speed friction will not occur in journey with workpiece, will not be such that workpiece deforms, to ensure that the quality of weld seam；
(2) pressing unit and rise unit that the utility model is made up of coil and lower coil, in the welding process
It is more uniform to the extruding force of workpiece, and even if the thickness of workpiece changes, extruding force is also held essentially constant, and promotes welding
Quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 is mixing needle, and 2 be upper cylinder roller bearing, and 3 be coil shell, and 4 be coil, and 5 roll for lower cylinder
Sub- bearing, 6 be mixing needle shell, and 7 be the upper shaft shoulder, and 8 be workpiece, and 9 be idler wheel, and 10 be the lower shaft shoulder, and 11 be lower coil, and 12 be linear axis
It holds, 13 be elastic washer, and 14 be fixture nut.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
Embodiment 1
A kind of floating type double static shaft shoulder stirring-heads, structure is as shown in Figure 1, including mixing needle 1, fixing and be located at stirring
The upper shaft shoulder 7 and the lower shaft shoulder 10 at 1 middle part of needle are set in 1 top of mixing needle and provide pressing unit, the set of pressure for the upper shaft shoulder 7
It is located at 1 lower part of mixing needle and provides the rising unit of lift for the lower shaft shoulder 10.
Wherein, pressing unit include be set in 1 top of mixing needle inverted T font mixing needle shell 6, be set in mixing needle shell
The coil 4 in 6 outsides, mixing needle shell 6 include the vertical portion being axially arranged along mixing needle 1 and setting in vertical portion bottom and
The horizontal part parallel with vertical portion, coil 4 is set on the outside of vertical portion, and the bottom of coil 4 and the top of horizontal part connect
Touching, the upper shaft shoulder 7 are fixedly connected with the bottom end of horizontal part.The top and bottom end of vertical portion pass through upper 2 He of cylinder roller bearing respectively
Lower cylinder roller bearing 5 is connect with mixing needle 1.Pass through two cylinder roller bearings, it is ensured that mixing needle 1 is in high speed rotation
When, the upper shaft shoulder 7 will not rotate.The outside of coil 4 is arranged coil shell 3, and the bottom of coil shell 3 is fixed on horizontal part
Upper end.Setting shell is to prevent the generation of electric shock in order to which coil 4 is isolated from the outside world.
The lower shaft shoulder 10 is in convex shape, and the accommodating chamber of abutting part and bottom including top, accommodating chamber is hollow structure.
Rising unit includes the lower coil 11 for being set in 1 lower part of mixing needle and the linear axis for being fixed on 1 bottom of mixing needle
12 are held, lower coil 11 is located in accommodating chamber, and when not working, the lower shaft shoulder 10 is supported on 12 top of linear bearing.In the present apparatus, stirring
Needle 1 and mixing needle shell 6 form iron core, and form an electromagnet with coil 4, and lower coil 11 and mixing needle 1 form an electricity
Magnet, in welding, coil 4 and lower coil 11 are powered, and can produce magnetic field, so that the upper shaft shoulder 7 pushes, the lower shaft shoulder 10
It is promoted.The bottom end of mixing needle 1 is equipped with fixture nut 14, and fixture nut 14 is connect by elastic washer 13 and the bottom of linear bearing 12
Touching.Setting fixture nut 14 be descend the shaft shoulder 10 and linear bearing 12 to fall down in order to prevent, and be arranged elastic washer 13 be in order to
Prevent linear bearing 12 from rigid contact occurs with fixture nut 14 in the welding process, to increase the service life of linear bearing 12.
The two sides of the lower shaft shoulder 10 are symmetrically arranged with connecting rod, and connecting rod is equipped with idler wheel 9, the highest point of idler wheel 9 and lower axle
The highest point of the abutting part of shoulder 10 flushes.Idler wheel 9 is set, is to provide a fulcrum to workpiece 8 in welding, prevention and treatment workpiece 8 is sent out
It gives birth to upper and lower bounce and influences welding quality.
Coil 4 and lower coil 11 use the coiling of π type, and the magnetic field that coil 4 and lower coil 11 generate after energization is identical.
Since the magnetism that the electromagnet that π type coiling obtains generates after powered up is stronger.Since coil 4 and lower coil 11 generate after being powered
Magnetic field it is identical, so the magnetic field at the magnetic field of 4 bottom of coil and the top of lower coil 11 is just on the contrary, there is a natural attraction between the sexes.
When welding, coil 4 and lower coil 11 are powered, to attract each other, so that the upper shaft shoulder 7 and the opposite fortune of the lower shaft shoulder 10
It is dynamic, and it is tightly attached to the upper and lower surfaces of two workpiece 8 respectively.As shown in Figure 1, gap of the mixing needle 1 along two workpiece 8
Movement (in figure be perpendicular to face directly outwardly or inwardly), while 1 high speed rotation of mixing needle, make two 8 frictional heat generations of workpiece
And soften, complete welding.
Claims (6)
1. a kind of floating type double static shaft shoulder stirring-heads, which is characterized in that the stirring-head includes mixing needle, fixation and is located at stirring
The upper shaft shoulder and the lower shaft shoulder in the middle part of needle are set in mixing needle top and provide the pressing unit of pressure for the upper shaft shoulder, are set in and stir
It mixes needle lower part and provides the rising unit of lift for the lower shaft shoulder；
The pressing unit includes the mixing needle shell for the inverted T font for being set in mixing needle top, is set on the outside of mixing needle shell
Coil, the mixing needle shell includes the vertical portion being axially arranged along mixing needle and setting in vertical portion bottom and and perpendicular
The parallel horizontal part in straight portion, the coil is set on the outside of vertical portion, and the tip contact of the bottom of coil and horizontal part,
The upper shaft shoulder is fixedly connected with the bottom end of horizontal part；
The top and bottom end of the vertical portion are connect by upper cylinder roller bearing and lower cylinder roller bearing with mixing needle respectively；
Coil shell is arranged on the outside of the coil, the bottom of the coil shell is fixed on the upper end of horizontal part.
2. the floating type double static shaft shoulder stirring-heads of one kind according to claim 1, which is characterized in that the lower shaft shoulder is in
Convex shape, the accommodating chamber of abutting part and bottom including top, the accommodating chamber are hollow structure.
3. the floating type double static shaft shoulder stirring-heads of one kind according to claim 2, which is characterized in that the rising unit
Including being set in the lower coil of mixing needle lower part and being fixed on the linear bearing of mixing needle bottom, the lower coil is located at described
In accommodating chamber, when not working, the lower shaft shoulder is supported at the top of linear bearing.
4. the floating type double static shaft shoulder stirring-heads of one kind according to claim 3, which is characterized in that the mixing needle
Bottom end is equipped with fixture nut, and the fixture nut is contacted by elastic washer with the bottom of linear bearing.
5. the floating type double static shaft shoulder stirring-heads of one kind according to claim 3, which is characterized in that the lower shaft shoulder
Two sides are symmetrically arranged with connecting rod, and the connecting rod is equipped with idler wheel, the highest point of the idler wheel and the abutting part of the lower shaft shoulder
Highest point flushes.
6. the floating type double static shaft shoulder stirring-heads of one kind according to claim 3, which is characterized in that the coil and
Lower coil uses the coiling of π type, and the magnetic field that coil and lower coil generate after energization is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820869838.8U CN208787747U (en) | 2018-06-06 | 2018-06-06 | A kind of floating type double static shaft shoulder stirring-heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820869838.8U CN208787747U (en) | 2018-06-06 | 2018-06-06 | A kind of floating type double static shaft shoulder stirring-heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208787747U true CN208787747U (en) | 2019-04-26 |
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ID=66200815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820869838.8U Expired - Fee Related CN208787747U (en) | 2018-06-06 | 2018-06-06 | A kind of floating type double static shaft shoulder stirring-heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208787747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581178A (en) * | 2018-06-06 | 2018-09-28 | 上海工程技术大学 | The floating type double static shaft shoulder agitating friction welderings of one kind, which connect, uses stirring-head |
| CN113953645A (en) * | 2021-11-18 | 2022-01-21 | 江苏科技大学 | Magnetization degree adjustable spring nest type embedded magnetic stirring friction welding device |
| CN113953651A (en) * | 2021-11-18 | 2022-01-21 | 江苏科技大学 | Center embedded magnetic type friction stir welding device with adjustable magnetization degree |
-
2018
- 2018-06-06 CN CN201820869838.8U patent/CN208787747U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581178A (en) * | 2018-06-06 | 2018-09-28 | 上海工程技术大学 | The floating type double static shaft shoulder agitating friction welderings of one kind, which connect, uses stirring-head |
| CN108581178B (en) * | 2018-06-06 | 2023-11-24 | 上海工程技术大学 | Floating type stirring head for friction stir welding with double stationary shaft shoulders |
| CN113953645A (en) * | 2021-11-18 | 2022-01-21 | 江苏科技大学 | Magnetization degree adjustable spring nest type embedded magnetic stirring friction welding device |
| CN113953651A (en) * | 2021-11-18 | 2022-01-21 | 江苏科技大学 | Center embedded magnetic type friction stir welding device with adjustable magnetization degree |
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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 |
Granted publication date: 20190426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |