CN213945261U - Liquid cooling static shaft shoulder friction stir tool - Google Patents
Liquid cooling static shaft shoulder friction stir tool Download PDFInfo
- Publication number
- CN213945261U CN213945261U CN202022821641.7U CN202022821641U CN213945261U CN 213945261 U CN213945261 U CN 213945261U CN 202022821641 U CN202022821641 U CN 202022821641U CN 213945261 U CN213945261 U CN 213945261U
- Authority
- CN
- China
- Prior art keywords
- cooling liquid
- shaft shoulder
- stirring pin
- stirring
- static
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The application discloses a liquid-cooled static shaft shoulder friction stir welding tool, belonging to the technical field of friction stir welding; the design key points are as follows: the method comprises the following steps: a cooling liquid inlet pipe, a sealing rubber gasket, a stirring pin, a static shaft shoulder and a cooling liquid outlet pipe; wherein, the pin includes: the stirring pin comprises a stirring pin body, a first positioning step, a cavity, a shaft shoulder and a stirring pin tip; the cooling liquid enters the stirring pin cavity through the cooling liquid inlet pipeline, flows back through a gap between the cooling liquid inlet pipe and the stirring pin cavity, and finally flows back from a channel for cooling liquid backflow formed by the space between the inner surface of the cooling liquid outlet pipe and the outer surface of the cooling liquid inlet pipe, so that a circulating cooling system is formed. Adopt a liquid cooling static shaft shoulder friction stir welding instrument of this application, can reduce the operating temperature of static shaft shoulder stirring needle, prevent the overheated and wearing and tearing that produce of stirring needle temperature to improve stirring instrument's life.
Description
Technical Field
The application relates to the technical field of welding, and is specific to a liquid cooling static shaft shoulder friction stir welding instrument, belongs to friction stir welding technical field.
Background
Friction Stir Welding (FSW) was invented by The Welding Institute, TWI, of The united kingdom in 1991 as a new solid phase joining technique. The process is that a stirring head consisting of a shaft shoulder and a stirring needle is inserted into a welding seam and moves forwards while rotating at a high speed, materials to be welded are plasticized by utilizing friction heat, plastic flow is generated under the driving of the stirring head, the welding seam is formed under the forging and pressing action of the shaft shoulder, and solid-phase connection is realized.
The static shaft shoulder friction stir welding is a new technology developed on the basis of the conventional friction stir welding. The stirring pin is used as a core component and a consumable material for static shoulder friction stir welding, and is a carrier for directional flowing and forming of materials in a welding seam area. In the conventional friction stir welding process, due to the rotation and extrusion of the stirring head, a 'flash' is formed at the edge of a welding seam, so that the welding seam area is slightly thinner than a base material, and the surface quality and the joint performance of the welding seam are not facilitated. At present, in industrial production, mechanical polishing is often needed to remove flash, so that the production efficiency is reduced, and the surface quality of a welded workpiece is easily damaged.
At present, there are two main ways to eliminate flash:
first, a special pin shoulder end face is designed, for example: CN203778960U, CN 107138851A;
second, a device or structure is added on the periphery of the stirring head, such as a cutting head or a shaft shoulder outer edge is added to form a cutting groove, for example, CN 211219136U.
However, both of the above methods cannot eliminate the burrs well, and the first method can reduce the amount of the burrs but cannot completely eliminate the burrs, and the second method causes poor quality of the weld surface due to the adhesion of the burrs to the pin due to the high temperature of the burrs. The static shaft shoulder friction stir welding technology effectively solves the problems of thinning and flash, but the stirring tool is seriously abraded due to overhigh local temperature caused by the fact that plastic materials enter a gap between the stirring needle and the static shaft shoulder in the welding process, and the service life of the stirring tool is greatly reduced. The temperature of the stirring tool is reduced, and the method has very important significance for prolonging the service life of the stirring tool.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the main purpose of the application is to provide a liquid-cooled static shaft shoulder friction stir tool, which can effectively reduce the temperature of the tool and prolong the service life of the stir tool.
The scheme of the application is as follows:
a liquid-cooled static shoulder friction stir tool, comprising: a cooling liquid inlet pipe, a sealing rubber gasket, a stirring pin, a static shaft shoulder and a cooling liquid outlet pipe;
wherein, the pin includes: the stirring pin comprises a stirring pin body, a first positioning step, a cavity, a shaft shoulder and a stirring pin tip;
the fixed first location step that is provided with of circumference portion of stirring pin body, first location step will the stirring pin body divide into two parts: the upper stirring pin body and the lower stirring pin body; a cavity for recycling cooling liquid is arranged in the stirring pin body; an opening is formed in the end part of the lower stirring pin body, and the cavity is communicated with the opening; the end part of the upper stirring needle body is sequentially connected with a shaft shoulder and a stirring needle tip;
the cooling liquid inlet pipe and the cooling liquid outlet pipe are coaxially arranged, the cooling liquid inlet pipe is arranged inside the cooling liquid outlet pipe, and the space between the inner surface of the cooling liquid outlet pipe and the outer surface of the cooling liquid inlet pipe is used as a cooling liquid backflow channel;
the cooling liquid inlet pipe and the cooling liquid outlet pipe are inserted into the cavity from the opening at the end part of the lower stirring pin body, and the length of the cooling liquid outlet pipe entering the cavity is smaller than that of the cooling liquid inlet pipe;
a gap is formed between the cooling liquid inlet pipe and the cavity;
wherein, quiet shoulder includes: the shaft shoulder body, the shaft shoulder cavity and the shaft shoulder hole; the static shaft shoulder body is in a pot cover shape to form a static shaft shoulder cavity, and a static shaft shoulder hole is formed in the middle of the static shaft shoulder body;
the upper stirring pin body enters a static shaft shoulder cavity of the static shaft shoulder; the size of a static shaft shoulder hole of the static shaft shoulder is matched with that of a shaft shoulder of the stirring needle, and a stirring needle point of the stirring needle penetrates through the static shaft shoulder hole of the static shaft shoulder;
a gap is arranged between the stirring pin and the static shaft shoulder (namely the stirring pin and the static shaft shoulder are not in direct contact).
Further, the dead axle shoulder still includes: a section and a discharge hole for discharging; the section of the discharge is arranged on the side wall of the static shaft shoulder; the section and the discharge hole are used for discharging waste materials.
Furthermore, the cooling liquid inlet pipe and the cooling liquid outlet pipe are circular pipes, and the stirring pin body is a cylinder; the cooling liquid inlet pipe and the stirring pin body are coaxially arranged.
Further, still include: and the sealing rubber gasket is arranged between the opening arranged at the end part of the lower stirring pin body and the cooling liquid outlet pipe.
Further, the pin still includes: the clamping handle component is arranged on the lower stirring pin body; the clamping bar assembly comprises: a clamping handle cylinder and a clamping surface; the clamping handle cylinder and the clamping surface are used for fixedly mounting the stirring pin body and the main shaft driving tool handle;
the stirring pin is connected with the main shaft driving tool handle through a side jacking fastening bolt-nut (or screw).
The application has the advantages that:
firstly, the application provides a static shaft shoulder friction stir tool, wherein a cavity for liquid circulation is arranged in a stirring pin, and the temperature of the stirring pin is reduced by a cooling liquid circulation system; be equipped with the tangent plane that is used for arranging the material and waste materials such as relief hole discharge aluminium bits on the quiet shoulder, tangent plane and hole also are favorable to reducing the temperature of welding process shoulder simultaneously, prevent the too high and wearing and tearing that produce of instrument temperature to improve the life of instrument.
Secondly, when the temperature of the stirring tool is reduced, waste materials generated during welding are discharged in time, the temperature is reduced, and the material extrusion into the cavity of the static shaft shoulder is reduced; meanwhile, the mechanical property of the welding line can be improved and the quality stability of the welding product is improved by reducing the temperature of the stirring tool; the production amount of welding flash can be effectively reduced, and the surface of the welding seam of the product is smoother and smoother.
Drawings
The present application will be described in further detail with reference to the following examples, which are not intended to limit the scope of the present application.
Fig. 1 is an exploded view of a first embodiment of a liquid-cooled stationary shoulder friction stir tool (coolant outlet pipe not shown).
FIG. 2 is an exploded view of a liquid-cooled static shoulder friction stir tool according to an alternative embodiment (coolant drain not shown).
FIG. 3 is a schematic cross-sectional view of an assembled air-cooled static shoulder friction stir tool of the first embodiment (illustrating coolant exit tubes).
The reference numerals are explained below:
a cooling liquid inlet pipe 1 and a sealing rubber pad 2;
the stirring pin comprises a stirring pin 3, a cavity 31, a sealing gasket groove 32, a clamping handle component 33, a first positioning step 34, a stirring pin body 35, a shaft shoulder 36, a stirring pin tip 37, a clamping handle cylinder 38 and a clamping surface 39;
a static shaft shoulder 4, a static shaft shoulder cavity 41, a second positioning step 42, a third positioning step 43, a section 45 for discharging, a discharging hole 44 and a static shaft shoulder hole 46;
a coolant outlet pipe 5.
Detailed Description
First embodiment, in order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 and 2 are exploded views of a liquid-cooled static shoulder friction stir tool according to a first embodiment.
FIG. 3 is a schematic cross-sectional view of a fluid-cooled stationary shoulder friction stir tool according to an embodiment of the present disclosure after assembly.
The structure of a liquid cooled static shoulder friction stir tool of the present application is described in detail below with reference to fig. 1-3.
A liquid cooled static shoulder friction stir tool system comprising: the cooling liquid inlet pipe 1, the sealing rubber gasket 2, the stirring pin 3, the static shaft shoulder 4 and the cooling liquid outlet pipe 5.
Wherein, the pin 3 includes: a stirring pin body 35 (adopting a cylindrical shape), a first positioning step 34, a cavity 31, a shaft shoulder 36 and a stirring pin tip 37;
the fixed first location step 34 that is provided with of circumference portion of pin body 35, first location step 34 will pin body 35 divide into two parts: the upper stirring pin body and the lower stirring pin body;
a cavity 31 for recycling cooling liquid is arranged in the stirring pin body 35;
an opening is formed in the end of the lower stirring pin body, and the cavity 31 is communicated with the opening;
the end part of the upper stirring needle body is sequentially connected with a shaft shoulder 36 and a stirring needle point 37.
Wherein, the mode that the stirring pin 3 and coolant liquid inlet pipe 1, 5 complex of coolant liquid outlet pipe is:
the cooling liquid inlet pipe 1 and the cooling liquid outlet pipe 5 are coaxially arranged, and the cooling liquid inlet pipe 1 is arranged inside the cooling liquid outlet pipe 5 (namely the cross-sectional area of the cooling liquid inlet pipe 1 is smaller than that of the cooling liquid outlet pipe 5), namely the space between the inner surface of the cooling liquid outlet pipe 5 and the outer surface of the cooling liquid inlet pipe 1 is used as a cooling liquid backflow channel;
the cooling liquid inlet pipe 1 is inserted into the cavity 31 from the opening at the end part of the lower stirring pin body, and the sectional area of the cavity 31 is larger than that of the cooling liquid inlet pipe 1, so that cooling liquid can flow from the space between the cooling liquid inlet pipe 1 and the cavity 31 after entering the cavity 31 from the cooling liquid inlet pipe 1;
the cooling liquid outlet pipe 5 is inserted into the cavity 31 from the opening at the end part of the lower stirring pin body, but the length of the cooling liquid outlet pipe 5 entering the cavity 31 is smaller than the length of the cooling liquid inlet pipe 1 entering the cavity 31 (particularly, the cooling liquid outlet pipe 5 is inserted into the cavity 31 for a short distance);
the circulation mode of the cooling liquid is as follows: after the cooling liquid enters the cavity 31 from the cooling liquid inlet pipe 1, the cooling liquid flows to the cooling liquid outlet pipe 5 from the space between the cooling liquid inlet pipe 1 and the cavity 31, and finally flows back from a cooling liquid backflow channel formed by the inner surface of the cooling liquid outlet pipe 5 and the outer surface of the cooling liquid inlet pipe 1, so that the circulation of the cooling liquid is completed.
Particularly, the cooling liquid inlet pipe 1 and the cooling liquid outlet pipe 5 adopt round pipes; the cooling liquid inlet pipe 1, the cooling liquid outlet pipe 5 and the stirring pin 3 (cylinder) are coaxially arranged.
It should also be noted that: still be provided with sealed cushion 2 between the opening that the tip of lower pin tumbler body set up and coolant liquid drain pipe 5 to prevent that the coolant liquid from spilling over the pin tumbler body.
Wherein, dead axle shoulder 4 includes: a dead axle shoulder cavity 41, a discharge section 45, a discharge hole 44 and a dead axle shoulder hole 46.
Wherein, the cooperation between the stirring pin 3 and the static shaft shoulder 4 is as follows:
the upper stirring pin body enters a static shaft shoulder cavity 41 of the static shaft shoulder 4; the size of the dead axle shoulder hole 46 of the dead axle shoulder 4 is matched with the size of the shaft shoulder 36 of the stirring pin 3 (the diameter of the dead axle shoulder hole 46 of the dead axle shoulder 4 is slightly larger than that of the shaft shoulder 36 of the stirring pin 3), and the stirring pin tip 37 of the stirring pin 3 passes through the dead axle shoulder hole 46 of the dead axle shoulder 4;
in addition, it should be noted that: the pin still includes: a grip handle assembly 33 provided on the lower pin body; the clamping lever assembly 33 includes: a clamping shank cylinder 38 and a clamping face 39; the clamping handle assembly is used for facilitating installation of the stirring pin body and the spindle driving tool handle.
In addition, it should be noted that the stationary shoulder 4 further includes: a second positioning step 42, a third positioning step 43; the second positioning step 42 and the third positioning step 43 facilitate the installation and fixation of the static shaft shoulder 4 and the main shaft non-rotating supporting device, and ensure the clearance fit between the shaft shoulder 36 of the stirring pin 3 and the static shaft shoulder hole 46 of the static shaft shoulder 4.
In addition, it should be noted that the stationary shoulder 4 further includes: a section 45 for discharging and a discharge hole 44; the tangent plane 45 and the discharge hole 44 are used for discharging waste materials such as aluminum scraps, and meanwhile, the tangent plane and the hole are also favorable for reducing the temperature of a shaft shoulder in the welding process, so that the abrasion caused by overhigh temperature of the tool is prevented, and the service life of the tool is further prolonged.
The utility model provides a liquid cooling static shaft shoulder friction stir tool, in the welding work process, the coolant liquid passes through coolant liquid inlet pipe 1 and gets into inside the stirring pin cavity 31, at the clearance backward flow between through coolant liquid inlet pipe 1 and stirring pin cavity 31, the passageway backward flow of the coolant liquid backward flow that the space of the internal surface of at last follow coolant liquid drain pipe 5 and the surface of coolant liquid inlet pipe 1 formed, thereby form circulative cooling system, the coolant liquid orbit is shown in fig. 3. The cooling liquid flows in the stirring pin cavity 31, so that heat generated by friction of the stirring pin can be effectively taken away, and the purpose of reducing the temperature of the stirring pin is achieved.
The application provides a pair of liquid cooling static shaft shoulder friction stir welding instrument has set up sufficient coolant flow passageway and has guaranteed that the heat that welding process produced is taken away to the temperature of greatly reduced stirring needle reduces the wearing and tearing of stirring instrument, in order to improve the life of static shaft shoulder instrument.
The above-mentioned embodiments are merely preferred embodiments of the present application, which are not intended to limit the present application in any way, and it will be understood by those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the present application.
Claims (5)
1. A liquid-cooled stationary shoulder friction stir tool, comprising: a cooling liquid inlet pipe (1), a sealing rubber gasket (2), a stirring pin (3), a static shaft shoulder (4) and a cooling liquid outlet pipe (5);
wherein the stirring pin (3) comprises: the stirring pin comprises a stirring pin body (35), a first positioning step (34), a cavity (31), a shaft shoulder (36) and a stirring pin tip (37);
the fixed first location step (34) that is provided with of circumference portion of stirring needle body (35), first location step (34) will stirring needle body (35) divide into two parts: the upper stirring pin body and the lower stirring pin body; a cavity (31) for recycling cooling liquid is arranged in the stirring pin body (35); an opening is formed in the end part of the lower stirring pin body, and a cavity (31) is communicated with the opening; the end part of the upper stirring needle body is sequentially connected with a shaft shoulder (36) and a stirring needle point (37);
the cooling liquid inlet pipe (1) and the cooling liquid outlet pipe (5) are coaxially arranged, the cooling liquid inlet pipe (1) is arranged inside the cooling liquid outlet pipe (5), and the space between the inner surface of the cooling liquid outlet pipe (5) and the outer surface of the cooling liquid inlet pipe (1) is used as a cooling liquid backflow channel;
the cooling liquid inlet pipe (1) and the cooling liquid outlet pipe (5) are inserted into the cavity (31) from the opening at the end part of the lower stirring pin body, and the length of the cooling liquid outlet pipe (5) entering the cavity (31) is smaller than the length of the cooling liquid inlet pipe (1) entering the cavity (31);
a gap is formed between the cooling liquid inlet pipe (1) and the cavity (31);
wherein, quiet shaft shoulder (4) includes: the shaft shoulder body, the shaft shoulder cavity (41) and the shaft shoulder hole (46); the static shaft shoulder body is in a pot cover shape to form a static shaft shoulder cavity (41), and a static shaft shoulder hole (46) is formed in the middle of the static shaft shoulder body;
the upper stirring pin body enters a static shaft shoulder cavity (41) of the static shaft shoulder (4); the size of a static shaft shoulder hole (46) of the static shaft shoulder (4) is matched with the size of a shaft shoulder (36) of the stirring needle (3), and a stirring needle point (37) of the stirring needle (3) penetrates through the static shaft shoulder hole (46) of the static shaft shoulder (4);
a gap is arranged between the stirring pin and the static shaft shoulder.
2. A liquid cooled static shoulder friction stir tool according to claim 1 wherein the static shoulder (4) further comprises: a section (45) and a discharge hole (44) for discharging;
the tangent plane (45) of the discharging is arranged on the side wall of the static shaft shoulder (4);
the cutting surface and the discharge hole (44) are used for discharging waste materials.
3. The liquid-cooled static shoulder stirring friction stirring tool as claimed in claim 1, wherein the cooling liquid inlet pipe (1) and the cooling liquid outlet pipe (5) are circular pipes, and the stirring pin body (35) is a cylinder; the cooling liquid inlet pipe (1) and the stirring pin body (35) are coaxially arranged.
4. The liquid cooled static shoulder friction stir tool according to claim 1 further comprising: a sealing rubber gasket (2), and a sealing rubber gasket (2) is arranged between the opening arranged at the end part of the lower stirring pin body and the cooling liquid outlet pipe (5).
5. The liquid cooled static shoulder friction stir tool of any one of claims 1 to 4 wherein said pin further comprises: a clamping handle component (33) arranged on the lower stirring pin body; the clamping bar assembly (33) comprises: a clamping shank cylinder (38) and a clamping face (39); the clamping handle cylinder (38) and the clamping surface (39) are used for installing and fixing the stirring pin body and the main shaft driving tool handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821641.7U CN213945261U (en) | 2020-11-30 | 2020-11-30 | Liquid cooling static shaft shoulder friction stir tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821641.7U CN213945261U (en) | 2020-11-30 | 2020-11-30 | Liquid cooling static shaft shoulder friction stir tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213945261U true CN213945261U (en) | 2021-08-13 |
Family
ID=77213038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022821641.7U Active CN213945261U (en) | 2020-11-30 | 2020-11-30 | Liquid cooling static shaft shoulder friction stir tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213945261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909670A (en) * | 2021-10-27 | 2022-01-11 | 中铝萨帕特种铝材（重庆）有限公司 | Self-cleaning friction stir welding tool combination |
| CN113909671A (en) * | 2021-10-27 | 2022-01-11 | 中铝萨帕特种铝材（重庆）有限公司 | Double-sided friction stir welding system |
-
2020
- 2020-11-30 CN CN202022821641.7U patent/CN213945261U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909670A (en) * | 2021-10-27 | 2022-01-11 | 中铝萨帕特种铝材（重庆）有限公司 | Self-cleaning friction stir welding tool combination |
| CN113909671A (en) * | 2021-10-27 | 2022-01-11 | 中铝萨帕特种铝材（重庆）有限公司 | Double-sided friction stir welding system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213945261U (en) | Liquid cooling static shaft shoulder friction stir tool | |
| CN213969485U (en) | Static shaft shoulder friction stir welding device | |
| US6516992B1 (en) | Friction stir welding with simultaneous cooling | |
| CN107030371A (en) | A kind of novel static shaft shoulder friction stir welding tool | |
| CN206854839U (en) | A kind of novel static shaft shoulder friction stir welding tool | |
| WO2020006806A1 (en) | Method for sealing and welding cooling water channel of electric motor housing | |
| CN211219136U (en) | Static shaft shoulder friction stir welding tool | |
| CN212239592U (en) | Shaft shoulder structure for static shaft shoulder friction stir welding tool | |
| CN215238524U (en) | Liquid cooling friction stir welding tool clamping system | |
| CN211331778U (en) | Novel stirring head | |
| CN114473174A (en) | Friction welding equipment of ultra-thin aluminum alloy | |
| CN112548313A (en) | Welding tool and method for processing internal flow channel by using friction stir processing technology | |
| CN211219135U (en) | Static shaft shoulder friction stir welding tool | |
| CN113172332B (en) | Installation method, working method and system of liquid cooling friction stir welding tool clamping system | |
| CN111230188A (en) | Stirring head for friction stir manufacturing and method for preparing water cooling channel by using stirring head | |
| CN111098016B (en) | Friction stir welding equipment and cooling protection device thereof | |
| CN207642478U (en) | A kind of effectively insulating stirring friction welding agitator head | |
| CN212682780U (en) | Friction stir welding lap joint cutter | |
| CN214134006U (en) | Special main shaft of CNC machining center convenient to clearance smear metal | |
| CN211840293U (en) | Internal water-cooled drilling cutter | |
| CN210548814U (en) | Friction stir welding tool | |
| CN213410783U (en) | Static shaft shoulder friction stir welding tool | |
| CN220739792U (en) | Water-spraying type internal cooling static shaft shoulder stirring head | |
| CN219679033U (en) | Cooling structure for IGBT power module | |
| CN217860793U (en) | SG grinding wheel of triangle heap type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |