CN110280891A - A kind of friction stir welding tool - Google Patents
A kind of friction stir welding tool Download PDFInfo
- Publication number
- CN110280891A CN110280891A CN201910697243.8A CN201910697243A CN110280891A CN 110280891 A CN110280891 A CN 110280891A CN 201910697243 A CN201910697243 A CN 201910697243A CN 110280891 A CN110280891 A CN 110280891A
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- shaft shoulder
- stirring
- head
- friction stir
- ontology
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- 238000003466 welding Methods 0.000 title claims abstract description 111
- 238000003756 stirring Methods 0.000 title claims abstract description 52
- 230000003068 static effect Effects 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims 1
- 230000002028 premature Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 4
- 208000025599 Heat Stress disease Diseases 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The embodiment provides a kind of friction stir welding tools, are related to welding technology field.The friction stir welding tool includes welding ontology and cooling component.Welding ontology includes the static shaft shoulder and stirring-head, the static shaft shoulder is fixedly connected with host, and the static shaft shoulder has through-hole, the transmission connection of the output shaft of stirring-head and host, to rotate with output shaft, the end of stirring-head is equipped with mixing needle, and mixing needle is used for after the static shaft shoulder and web contact to be welded, plate to be welded is penetrated across through-hole rotation, to be stirred friction welding (FW) operation.Cooling component is set to welding ontology, and for cooling down to welding ontology.The friction stir welding tool is by the setting of the static shaft shoulder, so that the welding region of welded piece can form surface without thinned high quality weld seam without material loss.Meanwhile by the auxiliary of cooling component, welding ontology fatigue premature failure can be effectively prevented, the service life of each component can be improved.
Description
Technical field
The present invention relates to welding technology fields, in particular to a kind of friction stir welding tool.
Background technique
Agitating friction weldering is used as a kind of Green Solid Phase interconnection technique, has welding efficiency high, joint quality is good, pollution-free etc.
Feature is widely used in the fields such as Aeronautics and Astronautics, track train and ship.In the welding process, the stirring-head insertion of rotation
Inside workpiece is simultaneously slided along face of weld, and under frictional heat and stirring action, Plastic Flow occurs for the material near mixing needle
And portion refills to form weld seam behind, to complete to weld.
As a kind of solid phase joining technique, due to stirring-head high speed rotation and with the squeezing action of welded piece, can lead
It causes welded piece surface in welding process to generate a large amount of overlap, causes weld seam to be thinned serious, reduce material mechanical performance.At present
Going deburring conventional process is mechanical grinding, and this technique takes time and effort, and increases production cost and reduces production efficiency, limits
The development of traditional agitating friction weldering.
Stirring-head is the core of agitating friction welding technology, for elimination overlap defect, current domestic and international associated mechanisms
A large amount of research is carried out in configuration of pin design and material selection, but production requirement has not yet been reached in research contents.Due to
The interference of stirring-head and bearing heat fatigue cause the stirring-head service life lower.
Summary of the invention
The purpose of the present invention includes providing a kind of friction stir welding tool, and structure is simple, easy to operate, can extended
Stirring-head effectively eliminates overlap while the service life.
The embodiment of the present invention this can be implemented so that
In a first aspect, the embodiment of the present invention provides a kind of friction stir welding tool, under the driving effect of host
It treats welding plate material and is stirred friction welding operation, friction stir welding tool includes:
Ontology is welded, welding ontology includes the static shaft shoulder and stirring-head, and the static shaft shoulder is fixedly connected with host, and stationary shaft
Shoulder has through-hole；The transmission connection of the output shaft of stirring-head and host, to rotate with output shaft, and the end of stirring-head is equipped with stirring
Needle；Mixing needle is used for after the static shaft shoulder and web contact to be welded, is penetrated plate to be welded across through-hole rotation, is rubbed with being stirred
Wipe weldering operation；
Cooling component is set to welding ontology, and for cooling down to welding ontology.
In alternative embodiments, welding ontology further includes outer cylinder and bearing assembly；
Outer cylinder is fixedly arranged on host, and is sheathed on the outside of stirring-head；
Bearing assembly is fixedly connected with outer cylinder, and is sheathed on the outside of stirring-head, and the static shaft shoulder is fixedly connected with bearing assembly.
In alternative embodiments, cooling component is set to bearing assembly, and is sheathed on the outside of stirring-head.
In alternative embodiments, cooling component includes water-cooling groove and the sealing ring with water-cooling groove sealed connection, sealing
Ring is set between outer cylinder and bearing assembly, and has inlet and outlet, and water-cooling groove is located on the outside of bearing assembly, and same
When be connected to inlet and outlet.
In alternative embodiments, bearing assembly includes bearing cap, bearing holder (housing, cover) and the roller being sheathed on the outside of stirring-head
Bearing；
Bearing cap is fixedly connected with outer cylinder, and bearing holder (housing, cover) is fixedly connected with bearing cap, and the inner ring of roller bearing is sheathed on stirring
Head outside, the outer ring of roller bearing is fixedly connected with bearing holder (housing, cover)；
The static shaft shoulder is fixedly connected with bearing holder (housing, cover).
In alternative embodiments, friction stir welding tool further includes the first positioning component, the first positioning component packet
Include the first positioning convex platform and the first locating slot；
And first one of both positioning convex platform and the first locating slot be set to bearing holder (housing, cover), the first positioning convex platform and first
The other of both locating slots are set to the static shaft shoulder；
First positioning convex platform can be mating with the first locating slot, to determine the cooperation position of bearing holder (housing, cover) Yu the static shaft shoulder.
In alternative embodiments, friction stir welding tool further includes the second positioning component, the second positioning component packet
Include the second positioning convex platform and the second locating slot；
And second one of both positioning convex platform and the second locating slot be set to stirring-head, the second positioning convex platform and second
The other of both locating slots are set to roller bearing inner ring；
Second positioning convex platform can be mating with the second locating slot, to determine the cooperation position of roller bearing and stirring-head.
In alternative embodiments, the static shaft shoulder includes shaft shoulder ontology and lug boss, and shaft shoulder ontology and bearing assembly are solid
Fixed connection, lug boss are set to shaft shoulder ontology and are directed away from the direction protrusion of bearing assembly, and through-hole is opened in the end of lug boss
Portion, and through-hole and stirring-head are interference fitted.
In alternative embodiments, lug boss has a first end and a second end, and the first end of lug boss and shaft shoulder sheet
Body is fixedly connected, and through-hole is located at the second end of lug boss, and through-hole is the counter sink recessed to the first extreme direction.
In alternative embodiments, stirring-head further includes the auxiliary shaft shoulder, and the auxiliary shaft shoulder is fixedly connected with mixing needle, and position
Pre-determined distance is differed in the one end of mixing needle far from plate to be welded, and between the outer diameter and the internal diameter of through-hole of the auxiliary shaft shoulder；
Wherein, the auxiliary shaft shoulder is used in the static shaft shoulder and when web contact to be welded, and web contact to be welded, and is penetrated to be welded
Plate pre-determined distance, so that mixing needle penetrates plate to be welded completely.
The embodiment of the present invention at least have following advantages or the utility model has the advantages that
The embodiment provides a kind of friction stir welding tool, it is used under the driving effect of host treat
Welding plate material is stirred friction welding operation.Wherein, which includes welding ontology and cooling component.Welding
Ontology includes the static shaft shoulder and stirring-head, and the static shaft shoulder is fixedly connected with host, and the static shaft shoulder has through-hole, stirring-head and master
The output shaft of machine is sequentially connected, and to rotate with output shaft, the end of stirring-head is equipped with mixing needle, and mixing needle is used in the static shaft shoulder
After web contact to be welded, plate to be welded is penetrated across through-hole rotation, to be stirred friction welding (FW) operation.Cooling component is set to
Ontology is welded, and for cooling down to welding ontology.The friction stir welding tool by the setting of the static shaft shoulder so that by
The welding region of welder's part can form surface without thinned high quality weld seam without material loss.Meanwhile passing through the auxiliary of cooling component
It helps, welding ontology fatigue premature failure can be effectively prevented, the service life of each component can be improved.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the friction stir welding tool that the embodiment of the present invention provides；
Fig. 2 is the decomposition texture schematic diagram for the friction stir welding tool that the embodiment of the present invention provides；
Fig. 3 is the structural schematic diagram for the stirring-head that the embodiment of the present invention provides；
Fig. 4 is the structural schematic diagram for the bearing assembly that the embodiment of the present invention provides；
Fig. 5 is the structural schematic diagram for the static shaft shoulder that the embodiment of the present invention provides.
Icon: 100- friction stir welding tool；The static shaft shoulder of 101-；103- cooling component；107- through-hole；109- stirring
Head；111- grip shank；113- outer cylinder；115- bearing assembly；117- water-cooling groove；119- sealing ring；121- bearing cap；123- bearing
Set；125- roller bearing；The first positioning convex platform of 127-；The first locating slot of 129-；The second positioning convex platform of 131-；133- shaft shoulder sheet
Body；135- lug boss；137- assists the shaft shoulder；139- mixing needle；141- water inlet；143- water outlet.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if there is the side of the instructions such as term " on ", "lower", "inner", "outside"
Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the side usually put
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, being only used for distinguishing description if there is term " first ", " second " etc., it is not understood to indicate or imply phase
To importance.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention can be combined with each other.
Fig. 1 is the structural schematic diagram of friction stir welding tool 100 provided in this embodiment；Fig. 2 be the present embodiment provides
Friction stir welding tool 100 decomposition texture schematic diagram.Fig. 1 and Fig. 2 are please referred to, a kind of stir is present embodiments provided and rubs
Soldering appliance 100 is wiped, which is mainly used for, and the progress of welding plate material is treated under the driving effect of host
Friction Stir Welding operation.And it can especially be welded for high strength alumin ium alloy.Certainly, in other embodiments of the invention, to
The material of welding plate material can be selected according to demand, and the embodiment of the present invention repeats no more.
In detail, referring to Fig. 1 and Fig. 2, in the present embodiment, which mainly includes
Weld main body and cooling component 103.Welding main body is mainly used for being stirred friction welding operation under the driving effect of host,
Cooling component 103 is mainly used for cooling down welding main body, to improve fatigue life.
Specifically, in the present embodiment, welding ontology includes stirring-head 109 and the static shaft shoulder 101.Stirring-head 109 and master
The output shaft of machine is sequentially connected, for driving stirring-head 109 to be rotated towards plate movement to be welded under external force, to be stirred
Mix friction welding operation.The static shaft shoulder 101 is set to the outside of stirring-head 109, before Friction Stir Welding operation starts
With web contact to be welded, to guarantee the efficient progress of Friction Stir Welding operation.
Wherein, in the present embodiment, the static shaft shoulder 101 is fixedly connected with host, and the static shaft shoulder 101 has through-hole 107.
Wherein, Fig. 3 is the structural schematic diagram of stirring-head 109 provided in this embodiment.Refering to Fig. 3, in the present embodiment, stir
It mixes first 109 to be sequentially connected by the output shaft of grip shank 111 and host, the end of stirring-head 109 is equipped with mixing needle 139, stirring
Needle 139 is used to plate to be welded is penetrated across the rotation of through-hole 107, with after web contact to be welded in the static shaft shoulder 101 to be stirred
Friction welding (FW) operation.Cooling component 103 is set to welding ontology, and for cooling down to welding ontology.The Friction Stir Welding
Tool 100 is by the setting of the static shaft shoulder 101, so that the welding region of welded piece without material loss, can form surface without subtracting
Thin high quality weld seam.Meanwhile by the auxiliary of cooling component 103, welding ontology fatigue premature failure can be effectively prevented, it can
Improve the service life of each component.
Fig. 4 is the structural schematic diagram of bearing assembly 115 provided in this embodiment.Referring to FIG. 1 to FIG. 4, in the present embodiment
In, welding ontology further includes outer cylinder 113 and bearing assembly 115.Wherein, outer cylinder 113 is fixedly arranged on host, can preferably pass through bolt
It is fixed with the shell of host, and outer cylinder 113 can be sheathed on 109 outside of stirring-head.Bearing assembly 115 is fixedly connected with outer cylinder 113,
And it is sheathed on 109 outside of stirring-head, the static shaft shoulder 101 is fixedly connected with bearing assembly 115.Bearing assembly 115 is set to stirring
Between first 109 and the static shaft shoulder 101, to guarantee 109 rotatable movement of stirring-head, and the static shaft shoulder 101 can remain stationary it is motionless,
Overlap is efficiently controlled with this.
In detail, in the present embodiment, cooling component 103 may be disposed at bearing assembly 115, and be sheathed on stirring-head 109
Outside, for cooling down processing jointly to bearing assembly 115 and stirring-head 109, to guarantee 115 He of bearing assembly
The service life of stirring-head 109, while guaranteeing the effect of Friction Stir Welding operation.
And specifically, bearing assembly 115 includes the bearing cap 121, bearing holder (housing, cover) 123 and rolling for being sheathed on 109 outside of stirring-head
Sub- bearing 125.Bearing cap 121 is fixedly connected with outer cylinder 113, and bearing holder (housing, cover) 123 is fixedly connected with bearing cap 121, roller bearing 125
Inner ring be sheathed on the outside of stirring-head 109, the outer ring of roller bearing 125 is fixedly connected with bearing holder (housing, cover) 123.The static shaft shoulder 101 with
Bearing holder (housing, cover) 123 is fixedly connected, and when so that stirring-head 109 being rotated with the output shaft of host, the static shaft shoulder 101 can keep not revolving
Turn, so that the static shaft shoulder 101 can be bonded with plate surface to be welded when being stirred friction welding operation, to be moved through
The appearance of finning is avoided in journey.
As a preferred option, in the present embodiment, cooling component 103 is water cooling component, is carried out by way of water cooling
Cooling can uniformly effectively cooling bearing and stirring-head 109.
Specifically, referring to Fig. 1 to Fig. 4, in the present embodiment, cooling component 103 includes water-cooling groove 117 and and water
The sealing ring 119 that cold trap 117 is tightly connected.Sealing ring 119 is set between outer cylinder 113 and bearing assembly 115, and has water inlet
Mouth 141 and water outlet 143, water-cooling groove 117 is located on the outside of bearing holder (housing, cover) 123, and connects with water inlet 141 and water outlet 143
It is logical.Cooling water is inputted effectively to be cooled down to bearing and stirring-head 109 by water inlet 141, and water after cooling can pass through
Water outlet 143 is discharged, and to realize lasting cooling operations, to further guarantee the service life of each equipment, avoids generating
Early aging prevents bearing heat fatigue or metallic high temperature from softening the destruction for causing soldering appliance.
Referring to Fig. 1 to Fig. 4, in the present embodiment, friction stir welding tool 100 further includes the first positioning group
Part, the first positioning component include the first positioning convex platform 127 and the first locating slot 129.And first positioning convex platform 127 be set to it is static
For the shaft shoulder 101 close to the side of bearing holder (housing, cover) 123, the first locating slot 129 is opened in bearing holder (housing, cover) 123 close to the side of the static shaft shoulder 101,
First positioning convex platform 127 can be mating with the first locating slot 129, to determine bearing holder (housing, cover) 123 with the static shaft shoulder 101 with coincidence
It sets, to guarantee the efficient progress of friction welding operation.Meanwhile the first positioning convex platform 127 and axis for passing through the static shaft shoulder 101
First locating slot 129 of bearing sleeve 123 is tightly fastened, it can also be ensured that the concentricity of soldering set improves welding stability.When
So, in other embodiments of the invention, the first positioning convex platform 127 can also be set to the end of bearing holder (housing, cover) 123, the first positioning
Slot 129 can also be opened in the end of the static shaft shoulder 101, and the embodiment of the present invention is without limitation.
As a preferred option, friction stir welding tool 100 further includes the second positioning component, and the second positioning component includes
Second positioning convex platform 131 and the second locating slot.And second positioning convex platform 131 be located on the outside of stirring-head 109, the second locating slot
Into the inner ring that may be disposed at roller bearing 125.Second locating slot can be mating with the second positioning convex platform 131, to determine roller
The cooperation position of bearing 125 and stirring-head 109, to further guarantee efficiency and quality that friction welding operation carries out.When
So, in other embodiments of the invention, the second positioning convex platform 131 can also be set to the inner ring of roller bearing 125, and second is fixed
Position slot can also be opened in stirring-head 109, and the embodiment of the present invention is without limitation.
Fig. 5 is the structural schematic diagram of the static shaft shoulder 101 provided in this embodiment.Fig. 1 to Fig. 5 is please referred to, in the present embodiment
In, the static shaft shoulder 101 includes shaft shoulder ontology 133 and lug boss 135.Shaft shoulder ontology 133 is fixedly connected with bearing assembly 115, excellent
Selection of land its can be bolted to connection.Lug boss 135 is set to shaft shoulder ontology 133 and is directed away from bearing assembly 115
Direction protrusion, through-hole 107 is opened in the end of lug boss 135, and through-hole 107 and stirring-head 109 are interference fitted, to guarantee to stir
First 109 mixing needle 139 can be stretched out from through-hole 107 to be stirred friction welding operation.
As a preferred option, in the present embodiment, lug boss 135 has a first end and a second end, and lug boss 135
First end is fixedly connected with shaft shoulder ontology 133, and through-hole 107 is located at the second end of lug boss 135, and through-hole 107 is to first end
The recessed counter sink in direction.Because of the inclined curved of counter sink, pass through static curved surface knot of 101 lower end of the shaft shoulder with chamfering
Structure, can effectively prevent in the welding process as squeeze caused by material it is excessive, improve welding quality.Certainly, of the invention
In other embodiments, the shape of through-hole 107 can also be selected according to demand, and the embodiment of the present invention is without limitation.
Referring to Fig. 1 to Fig. 4, in the present embodiment, stirring-head 109 further includes the auxiliary shaft shoulder 137, assists the shaft shoulder
137 are fixedly connected with mixing needle 139, and are located at the one end of mixing needle 139 far from plate to be welded, and assist the outer diameter of the shaft shoulder 137
Pre-determined distance is differed between the internal diameter of through-hole 107.Wherein, the auxiliary shaft shoulder 137 in the static shaft shoulder 101 with plate to be welded for connecing
When touching, and web contact to be welded, and plate pre-determined distance to be welded is penetrated, so that mixing needle 139 penetrates plate to be welded completely.Pass through
It assists the shaft shoulder 137 to assist heat production, while being stirred friction welding operation under the cooperation of the static shaft shoulder 101, can avoid
Under the premise of overlap, further guarantee the effect of friction heat production, to improve the efficiency and quality of welding.
It should be noted that in the present embodiment, since each component is removably installed, the present embodiment provides
Friction stir welding tool 100 structure it is simpler while also easy to disassemble, facilitate postwelding to safeguard.
The working principle of the friction stir welding tool 100 provided below the embodiment of the present invention carries out in detail
It is bright:
When being stirred friction welding operation, pass through grip shank 111 first for the power of stirring-head 109 and welding equipment
Host is connected.Then, host power supply is opened, so that stirring-head 109 high speed rotation and edge under the drive of the output shaft of host
Welding direction is mobile, i.e., the axial line of soldering appliance is shaft.Then volume, mixing needle 139 are pricked under external force by welder
Part carries out horizontal shifting along welding direction after the through-hole 107 of the static shaft shoulder 101 and the surface of plate to be welded fit closely
It is dynamic.Meanwhile again during, as the auxiliary shaft shoulder 137 is penetrated welded piece surface certain depth, make in frictional force and pressure
Make that violent plastic deformation is occurred by welding zone domain under, to realize the connection of welded piece.
In conclusion the friction stir welding tool 100 that the embodiment of the present invention provides, is used to make in the driving of host
Welding plate material is treated under is stirred friction welding operation.Wherein, which includes welding ontology and cold
But component 103.Welding ontology includes the static shaft shoulder 101 and stirring-head 109, and the static shaft shoulder 101 is fixedly connected with host, and static
The shaft shoulder 101 has through-hole 107, and stirring-head 109 and the output shaft of host are sequentially connected, to be rotated with output shaft, stirring-head 109
End is equipped with mixing needle 139, and mixing needle 139 is used to rotate with after web contact to be welded across through-hole 107 in the static shaft shoulder 101
Plate to be welded is penetrated, to be stirred friction welding (FW) operation.Cooling component 103 is set to welding ontology, and for welding ontology
It is cooled down.The friction stir welding tool 100 by the setting of the static shaft shoulder 101 so that the welding region of welded piece without
Material loss can form surface without thinned high quality weld seam.Meanwhile by the auxiliary of cooling component 103, can be effectively prevented
Ontology fatigue premature failure is welded, the service life of each component can be improved.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of friction stir welding tool is stirred friction welding work for treating welding plate material under the driving effect of host
Industry, which is characterized in that the friction stir welding tool includes:
Ontology is welded, the welding ontology includes the static shaft shoulder and stirring-head, and the static shaft shoulder is fixedly connected with the host,
And the static shaft shoulder has through-hole；The output shaft of the stirring-head and the host is sequentially connected, to turn with the output shaft
It is dynamic, and the end of the stirring-head is equipped with mixing needle；The mixing needle in the static shaft shoulder and the plate to be welded for connecing
After touch, the plate to be welded is penetrated across through-hole rotation, to be stirred friction welding (FW) operation；
Cooling component is set to the welding ontology, and for cooling down to the welding ontology.
2. friction stir welding tool according to claim 1, it is characterised in that:
The welding ontology further includes outer cylinder and bearing assembly；
The outer cylinder is fixedly arranged on host, and is sheathed on the outside of the stirring-head；
The bearing assembly is fixedly connected with the outer cylinder, and is sheathed on the outside of the stirring-head, the static shaft shoulder with it is described
Bearing assembly is fixedly connected.
3. friction stir welding tool according to claim 2, it is characterised in that:
The cooling component is set to the bearing assembly, and is sheathed on the outside of the stirring-head.
4. friction stir welding tool according to claim 3, it is characterised in that:
The cooling component includes water-cooling groove and the sealing ring with water-cooling groove sealed connection, and the sealing ring is set to described
Between outer cylinder and the bearing assembly, and there are inlet and outlet, the water-cooling groove is located on the outside of the bearing assembly,
And it is connected to simultaneously with the water inlet and the water outlet.
5. friction stir welding tool according to any one of claim 2 to 4, it is characterised in that:
The bearing assembly includes bearing cap, bearing holder (housing, cover) and the roller bearing being sheathed on the outside of the stirring-head；
The bearing cap is fixedly connected with the outer cylinder, and the bearing holder (housing, cover) is fixedly connected with the bearing cap, the roller bearing
Inner ring be sheathed on the outside of the stirring-head, the outer ring of the roller bearing is fixedly connected with the bearing holder (housing, cover)；
The static shaft shoulder is fixedly connected with the bearing holder (housing, cover).
6. friction stir welding tool according to claim 5, it is characterised in that:
The friction stir welding tool further includes the first positioning component, first positioning component include the first positioning convex platform and
First locating slot；
And one of both described first positioning convex platform and first locating slot are set to the bearing holder (housing, cover), described first is fixed
The other of position both boss and first locating slot are set to the static shaft shoulder；
First positioning convex platform can be mating with first locating slot, with the determination bearing holder (housing, cover) and the static shaft shoulder
Cooperation position.
7. friction stir welding tool according to claim 5, it is characterised in that:
The friction stir welding tool further includes the second positioning component, second positioning component include the second positioning convex platform and
Second locating slot；
And one of both described second positioning convex platform and second locating slot are set to the stirring-head, described second is fixed
The other of position both boss and second locating slot are set to the roller bearing inner ring；
Second positioning convex platform can be mating with second locating slot, with the determination roller bearing and the stirring-head
Cooperation position.
8. friction stir welding tool according to any one of claim 2 to 4, it is characterised in that:
The static shaft shoulder includes shaft shoulder ontology and lug boss, and the shaft shoulder ontology is fixedly connected with the bearing assembly, described
Lug boss is set to the shaft shoulder ontology and is directed away from the direction protrusion of the bearing assembly, and the through-hole is opened in described convex
The end in the portion of rising, and the through-hole and the stirring-head are interference fitted.
9. friction stir welding tool according to claim 8, it is characterised in that:
The lug boss has a first end and a second end, and the first end of the lug boss and the fixed company of the shaft shoulder ontology
It connects, the through-hole is located at the second end of the lug boss, and the through-hole is the countersunk head recessed to first extreme direction
Hole.
10. friction stir welding tool according to claim 8, it is characterised in that:
The stirring-head further includes the auxiliary shaft shoulder, and the auxiliary shaft shoulder is fixedly connected with the mixing needle, and is located at the stirring
The one end of needle far from the plate to be welded, and it is described auxiliary the shaft shoulder outer diameter and the internal diameter of the through-hole between differ preset away from
From；
Wherein, the auxiliary shaft shoulder is used to connect in the static shaft shoulder and the web contact to be welded with the plate to be welded
Touching, and the plate pre-determined distance to be welded is penetrated, so that the mixing needle penetrates the plate to be welded completely.
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| CN201910697243.8A CN110280891A (en) | 2019-07-30 | 2019-07-30 | A kind of friction stir welding tool |
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| CN201910697243.8A CN110280891A (en) | 2019-07-30 | 2019-07-30 | A kind of friction stir welding tool |
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Address after: 510000, compound 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Applicant after: China Uzbekistan Welding Research Institute, Guangdong Academy of Sciences Address before: 510000, compound 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Applicant before: Guangdong Welding Institute (China-Ukraine E.O. Paton Institute of Welding) |