CN206153745U - Friction stir welding stirs head - Google Patents
Friction stir welding stirs head Download PDFInfo
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- CN206153745U CN206153745U CN201621239749.2U CN201621239749U CN206153745U CN 206153745 U CN206153745 U CN 206153745U CN 201621239749 U CN201621239749 U CN 201621239749U CN 206153745 U CN206153745 U CN 206153745U
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- mixing needle
- pin
- shank
- wall
- stirring
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Abstract
The utility model discloses a friction stir welding stirs head, it includes the body, the body has: installation cooperation portion, installation cooperation position in the upper portion of body, shank -pin, shank -pin is located the lower part of body, shank -pin is little big cone structure down to be provided with the thread groove on shank -pin's the outer wall, pole body portion, pole body position is in the middle part of body, pole body portion is used for connecting shank -pin with installation cooperation portion, the lower terminal surface of pole body portion is for pushing the terminal surface, at the bottom of the extrusion is provided with upwards sunken nest on the terminal surface, form the top transition connection of inboard and the shank -pin's of the wall at the nest end outer wall, the outside downward sloping that forms the wall at the nest end is extended. The utility model discloses not only can effectively avoid shank -pin in the be heated phenomenon of in -process breaking occur of stirring to can make the metal material stirring make weld forming pleasing to the eye, avoid the phenomenon of welding seam both sides edge production overlap effectively, eliminate and welded back cleaning time.
Description
Technical field
The utility model is related to a kind of stirring friction welding agitator head.
Background technology
At present, agitating friction weldering is a kind of solid phase joining technique, and material is non-fusible when being welded using the method, will not be produced
The defects such as pore, slag inclusion, crackle, and without the need for protective gas and packing material in welding process, postwelding residual deformation is little, residual
Residue stress is low, and soldering tip is fine grain forging tissue, and good mechanical performance, without the pollution such as arc light, noise, ray, is described as " removing from office the most
The solder technology of life property ", it is threaded by one in welding process as the main consumables stirring-head used by agitating friction weldering
The mixing needle of cone shape stretch into the seam crossing of two workpiece to be welded, apply the intimate surface contact of pressure and workpiece to be welded.It is logical
Cross welding machine main shaft to rotate at a high speed, with welding workpiece material phase mutual friction carried out, frictional heat makes metal be heated to higher temperature,
Then stirring, mixing, diffusion under the mechanical mixture effect of mixing needle, ultimately forms firm welding line joint.
And as the stirring-head of main consumables, due to the special substance of its own, import was originally relied only on, price
Costliness, service life is not long, and structure design is also unreasonable, and defect is mainly reflected in structure design：1) stirring-head body material
Material dependence on import is not carried out production domesticization；2) mixing needle of stirring-head easy fracture after stirring is heated；3) stirring-head extruding end face
In metal material stirring, extruding, mixing, diffusion process is participated in, it is unfavorable for stirring center of pin excess metal from extruding end face two
The smooth discharge in side；4) in the course of the work integral heat sink is not smooth for stirring-head, and to beginning to whole stirring-head heating status is constantly in, and makes
Its own red hardness declines；5) stirring-head installs positioning and clamping mode its security and the reliability has much room for improvement.
The content of the invention
Technical problem to be solved in the utility model is the defect for overcoming prior art, there is provided a kind of agitating friction weldering is stirred
Head is mixed, it can not only be prevented effectively from the phenomenon that mixing needle occurs to rupture in stirring thermal histories, and can make metal material
Stirring makes appearance of weld attractive in appearance, efficiently avoid the phenomenon that weld seam both sides of the edge produce overlap, eliminates postwelding cleaning
Time.
In order to solve above-mentioned technical problem, the technical solution of the utility model is：A kind of stirring friction welding agitator head, it is wrapped
Body is included, the body has：
Auxiliary section is installed, the installation matching part is in the top of body；
Mixing needle, the mixing needle is located at the bottom of body, the mixing needle little big cone structure under being in, and stirs
Mix and be provided with the outer wall of pin thread groove；
Rod body, the rod body is located at the middle part of body, and the rod body is used to connect the mixing needle and the peace
Dress auxiliary section, the lower surface of the rod body is extruding end face, and the nest bottom being recessed upwards is provided with the extruding end face, is formed
The inner side of the wall at nest bottom is connected with the tip transitions of the outer wall of mixing needle, and the outer of wall for forming nest bottom is sloped downwardly extension.
Further for the phenomenon for preferably avoiding mixing needle that fracture occurs in stirring thermal histories, the mixing needle
Needle point is spherical structure.
Further, the cone angle that the mixing needle is formed is 30 °.
Further for making it possess good high temperature resistant dynamic and static mechanical property, the body is rolled by high carbon chromium
On The Quality of Bearing Steels is made.
Further for can effectively decompose heat, the transmission of heat, the discharge of accelerated heat is delayed to keep the material of body
Intrinsic rigid performance do not decline, so as to effectively increase the durability of stirring-head, be provided with the shaft and at least dissipate together
Heat channel.
Further, the radiating groove is provided with multiple tracks, and multiple tracks radiating groove is set up in parallel along the axial direction of main body.
Further, the installation auxiliary section has suit portion and shaft shoulder portion, is provided with suit portion and coordinates for preventing with it
The locating face that only body is circumferentially rotated, is provided with least one blind hole extended to inner side, institute on the installation locating surface
It is axial locating surface for preventing body from moving axially to state above shaft shoulder portion, is for verifying this below the shaft shoulder portion
The body whether checking face with welding machine main axis parallel.
Further, the blind hole is provided with two, and two blind holes are set up in parallel along the axial direction of main body.
After employing above-mentioned technical proposal, the utility model has following beneficial effect：
1) this stirring-head adopts high carbon chromium roller bearing steel, and its representative trade mark is GCr15, and Jing integrally hardens to 55～
56HRC, with good high temperature resistant dynamic and static mechanical property；
2) the utility model optimizes the structure of mixing needle, and according to the thickness of slab of welded piece the length of mixing needle is determined, adopts
With 30 ° of cones, outer threaded architectural feature, the needle point of mixing needle adopts spherical structure, can effectively ensure that mixing needle in stirring
Do not rupture in thermal histories, and metal material can be made to stir；
3) the extruding end face of stirring-head of the present utility model changes conventional pure-surface structure, and using many circular arc cambers light is connected
The structure at the nest bottom crossed is slipped over, the center excess metal of mixing needle can be made from the smooth discharge in extruding end face nest bottom both sides, so that
Appearance of weld is attractive in appearance, is prevented effectively from weld seam both sides of the edge and produces overlap, eliminates postwelding clearance time；
4) the utility model changes the resemblance of rod body, and several radiating grooves are increased on rod body, can be effective
Decompose heat, delay the transmission of heat, the discharge of accelerated heat, the red hardness performance for keeping bulk material intrinsic not to decline,
So as to effectively increase the durability of stirring-head；
5) installation auxiliary section of the present utility model adopts the architectural feature of locating face and the shaft shoulder, when positioning is installed,
In addition to needing the installation mating surface for installing auxiliary section and being fitted close with friction stir welding machine stirring-head installing hole, in addition it is also necessary to stirring-head
Hole end surface is installed with it above shaft shoulder portion to be brought into close contact, to prevent stirring-head from occurring to alter axially upwards in high speed rotating welding
Dynamic phenomenon, after being primarily used to verify that stirring-head is installed and clamped below the shaft shoulder portion of stirring-head, below whether with welding machine master
Axle is vertical.
6) when being fixedly clamped, using the clamping mode of the blind hole on the tight locating face of bolt, first will be circumferentially positioned
Face lengthens, and further according to the lateral two tight bolts penetration holes centre-to-centre spacing sizes of friction stir welding machine main shaft chuck the position of blind hole is determined
Put so as to which stirring-head does not occur axially downwardly to slide, its safety and reliability strengthens.
Description of the drawings
Fig. 1 is the structural representation of stirring friction welding agitator head of the present utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the connection diagram that mixing needle is connected with shaft.
Specific embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
As shown in Figures 1 to 3, a kind of stirring friction welding agitator head, it includes body, and the body has：
Auxiliary section is installed, the installation matching part is in the top of body；
Mixing needle 1, the mixing needle 1 be located at body bottom, the little big cone structure under being in of the mixing needle 1, and
And it is provided with thread groove 11 on the outer wall of mixing needle 1；
Rod body, the rod body is located at the middle part of body, and the rod body is used to connect the mixing needle 1 and the peace
Dress auxiliary section, the lower surface of the rod body is extruding end face 2, and on the extruding end face 2 the nest bottom 21 being recessed upwards is provided with,
The inner side for forming the wall at nest bottom 21 is connected with the tip transitions of the outer wall of mixing needle 1, dips down on the outside of the wall for forming nest bottom 21
Tiltedly extend.The needle point of the mixing needle 1 can be spherical structure.The utility model optimizes the structure of mixing needle, according to being welded
The thickness of slab of workpiece determines the length of mixing needle, and using 30 ° of cones, outer threaded architectural feature, the needle point of mixing needle adopts ball
Face structure, can effectively ensure that mixing needle does not rupture in stirring thermal histories, and metal material can be made to stir.
As shown in figure 3, the cone angle that the mixing needle 1 is formed is 30 °.
The body is made up of high carbon chromium roller bearing steel material, and its representative trade mark is GCr15, and Jing integrally hardens to 55
～56HRC, with good high temperature resistant dynamic and static mechanical property；But the material of the body is not limited thereto.
As shown in Figure 1, 2, at least one radiating groove 4 is provided with the shaft, in the present embodiment, the radiating groove 4 sets
Multiple tracks is equipped with, and multiple tracks radiating groove 4 is set up in parallel along the axial direction of main body, and the setting of radiating groove 4 can effectively decompose heat, prolong
The transmission of slow heat, the discharge of accelerated heat, the red hardness performance for keeping bulk material intrinsic does not decline, so as to effectively improve
The durability of stirring-head；
As shown in Figure 1, 2, the installation auxiliary section has suit portion and shaft shoulder portion 5, is provided with suit portion and coordinates with it
For the locating face 7 for preventing body from circumferentially rotating, described installation is provided with least one to inner side extension on locating surface 7
Blind hole 71, is the axial locating surface for preventing body from moving axially above the shaft shoulder portion 5, below the shaft shoulder portion 5
It is for verifying the body whether checking face with welding machine main axis parallel.
In the present embodiment, the blind hole 71 is provided with two, and two blind holes 71 set side by side along the axial direction of main body
Put.
The using method of stirring-head of the present utility model is as follows：
1st, the installation mating surface 6 of stirring-head is inserted in friction stir welding machine main shaft chuck, is coordinated with main shaft chuck gap,
Mating surface to be installed 6 is completely nested in main shaft chuck, after being adjacent to above shaft shoulder portion 5, using two tight bolts from stirring-head
Chuck is tight in blind hole 71 laterally through its through hole, so as to stirring-head is securely seated between in main shaft chuck.
2nd, welding machine human-computer interface control guidance panel is opened, recalls program, air pressure meter pressure is regulated, using fast forward speed
Mixing needle 1 is placed between two workpiece to be welded with reference to work speed, extruding end face 2 is pressed on two workpiece planarizations to be welded.
3rd, welding button is started, stirring-head rotates at a high speed, extruding, stirring, mixing, diffusion base metals at the uniform velocity feed real
Welding connects.In welding process, rod body can also pass through the transmission that radiating groove 4 delays heat, the discharge of accelerated heat.
Particular embodiments described above, the technical problem solved to the utility model, technical scheme and beneficial effect are entered
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in the utility model is limited, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (8)
1. a kind of stirring friction welding agitator head, it includes body, it is characterised in that the body has：
Auxiliary section is installed, the installation matching part is in the top of body；
Mixing needle (1), the mixing needle (1) positioned at the bottom of body, the mixing needle (1) little big cone structure under being in,
And thread groove (11) is provided with the outer wall of mixing needle (1)；
Rod body, the rod body is located at the middle part of body, and the rod body is used to connect the mixing needle (1) and the installation
Auxiliary section, the lower surface of the rod body is extruding end face (2), and on extruding end face (2) the nest bottom being recessed upwards is provided with
(21) inner side for, forming the wall of nest bottom (21) is connected with the tip transitions of the outer wall of mixing needle (1), forms the wall of nest bottom (21)
Extension is sloped downwardly outward.
2. stirring friction welding agitator head according to claim 1, it is characterised in that：The needle point of the mixing needle (1) is ball
Face structure.
3. stirring friction welding agitator head according to claim 1, it is characterised in that：The cone that the mixing needle (1) is formed
Angle α is 30 °.
4. stirring friction welding agitator head according to claim 1, it is characterised in that：The body is by high carbon chromium rolling bearing
Steel matter is made.
5. stirring friction welding agitator head according to claim 1, it is characterised in that：It is provided with the shaft and at least dissipates together
Heat channel (4).
6. stirring friction welding agitator head according to claim 5, it is characterised in that：The radiating groove (4) is provided with multiple tracks,
And multiple tracks radiating groove (4) is set up in parallel along the axial direction of main body.
7. stirring friction welding agitator head according to claim 1, it is characterised in that：The installation auxiliary section has suit portion
With shaft shoulder portion (5), it is provided with suit portion and coordinates locating face (7) for preventing body from circumferentially rotating, the peace with it
Set and at least one blind hole (71) extended to inner side is provided with plane (7), be for preventing above the shaft shoulder portion (5)
The axial locating surface of body axial movement, be below the shaft shoulder portion (5) for verify body whether with welding machine main axis parallel
Checking face.
8. stirring friction welding agitator head according to claim 7, it is characterised in that：The blind hole (71) is provided with two,
And two blind holes (71) are set up in parallel along the axial direction of main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239749.2U CN206153745U (en) | 2016-11-18 | 2016-11-18 | Friction stir welding stirs head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239749.2U CN206153745U (en) | 2016-11-18 | 2016-11-18 | Friction stir welding stirs head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206153745U true CN206153745U (en) | 2017-05-10 |
Family
ID=58660217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621239749.2U Active CN206153745U (en) | 2016-11-18 | 2016-11-18 | Friction stir welding stirs head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206153745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026674A (en) * | 2019-05-24 | 2019-07-19 | 宁夏吴忠市好运电焊机有限公司 | Friction welding apparatus for spot welding robot |
| CN110170732A (en) * | 2019-05-06 | 2019-08-27 | 湖南坤鼎数控科技有限公司 | Friction stir welding machine Special scalpel handle |
-
2016
- 2016-11-18 CN CN201621239749.2U patent/CN206153745U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170732A (en) * | 2019-05-06 | 2019-08-27 | 湖南坤鼎数控科技有限公司 | Friction stir welding machine Special scalpel handle |
| CN110026674A (en) * | 2019-05-24 | 2019-07-19 | 宁夏吴忠市好运电焊机有限公司 | Friction welding apparatus for spot welding robot |
| CN110026674B (en) * | 2019-05-24 | 2023-12-26 | 宁夏吴忠市好运电焊机有限公司 | Friction welding device for spot welding robot |
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