CN102151979A - Combined friction stir welding mixing head aiming at different thicknesses of sheets - Google Patents
Combined friction stir welding mixing head aiming at different thicknesses of sheets Download PDFInfo
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- CN102151979A CN102151979A CN201110107374XA CN201110107374A CN102151979A CN 102151979 A CN102151979 A CN 102151979A CN 201110107374X A CN201110107374X A CN 201110107374XA CN 201110107374 A CN201110107374 A CN 201110107374A CN 102151979 A CN102151979 A CN 102151979A
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- sleeve
- mixing needle
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- shaft shoulder
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Abstract
The invention relates to a combined friction stir welding mixing head aiming at different thicknesses of sheets, which is characterized in that a center matrix is coaxially inserted into a sleeve; internal threads and external threads which are matched are respectively formed on a threaded connection column and a threaded connection hole; after the threaded connection column is in threaded fit with the threaded connection hole, a shaft shoulder of the center matrix is connected with a clamping body of the sleeve; and a matrix mixing needle is coaxially connected with a sleeve mixing needle. In the machining process, the center matrix is universal, and a series of sleeves with different dimensions and parameters only need to be machined, and a plurality of entire mixing heads are not required to be machined, so that the machining materials are saved. If the mixing head is abraded in the welding process, the sleeve is only required to be replaced, and the center matrix can be continuously used, so that the assembly and disassembly time of the mixing head is saved, and the welding efficiency is improved. Meanwhile, the center matrix and the sleeve can select dissimilar materials to adapt to the welding of various materials.
Description
Technical field
The present invention relates to a kind of combined type stirring friction welding agitator head, relate to the Solid-phase welding technical field, relate in particular to a kind of design of the combined type stirring-head at the different thicknesss of slab of friction stir welding at different-thickness sheet material.
Background technology
Friction stir welding (FSW) is a kind of novel solid phase interconnection technique, has that weldquality is good, a heat affected area residual stress and residual deformation is little, the low advantages such as (less than the mother metal fusing points) of welding temperature.Friction stir welding method has obtained worldwide patent protection (WO93110935).The FSW technology relies on rotates stirring-head and the frictional heat that two weldment contact-making surfaces produce at a high speed, makes the seam crossing metal produce the plasticity softened zone, rotates wherein that plasticity softened zone metal is subjected to stirring around the stirring-head, extruding, mobile to form plastic metal.
Stirring-head is the rotating soldering appliance of a kind of on-consumable of adopting of friction stir welding, and it mainly contains the shaft shoulder and mixing needle is formed.In welding process, stirring-head has and effects such as its material around frictional heat, broken workpiece surface oxide layer, transfer plastic flow material.Therefore, stirring-head is the core of agitating friction welding technology, whether rationally its structural design directly affects the flowing of generation, plastic metal of frictional heat source, determined the mechanical performance of friction stir welding, can the decisive influence effect have been arranged application in a wider context for friction stir welding.
In welding process, need overcome very big resistance when stirring-head and workpiece relative motion,, and use more stirring-head mostly to be integral structure at present so the wearing and tearing of stirring-head are more serious, need after the wearing and tearing whole stirring-head is changed, cause the waste of material and the increase of production cost.And the stirring-head of integral type need repeatedly remove and install when sheet material different-thickness or different materials is welded, and the double counterpoint of laying equal stress on causes speed of welding slow, and production efficiency is low.And the design of the relevant separate assembling stirring-head of report at present, the main scheme that adopts has two kinds: the one, in patent US006139985A and CN101559535, employing separates mixing needle with the shaft shoulder scheme, simplified the manufacture process again after mixing needle weares and teares, reduced the processing and manufacturing cost, but, cause when welding mixing needle that fracture damage easily takes place because stress is concentrated with shaft shoulder junction because the mixing needle diameter dimension is very little; The 2nd, in patent CN101559533, by the mode that the operate portions section is separated with the clamping part section, solved the problem of stirring-head welding different-thickness sample to a certain extent, but because quality of fit is had relatively high expectations between operate portions section and the clamping part section, processing request height not only, and easily cause bigger erection stress, and be not easy to long-time use, can produce big gap, influence welding quality.
According to retrieval, still there is not report to relate to a kind of stirring-head of combined sleeve formula to pertinent literature.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of combined type stirring friction welding agitator head at different-thickness sheet material, can reduce the processing and manufacturing cost of stirring-head, and stirring-head is changed efficient when improving welding different-thickness sheet material.
Thought of the present invention is: at the combination stirring friction welding agitator head of different thicknesss of slab, this combined type stirring-head is made up of center matrix and sleeve, wherein center matrix comprise cramping body, shoulder block, the post that is threaded, the center matrix shaft shoulder and center matrix mixing needle.Sleeve comprises sleeve retained part, threaded connection hole, the sleeve shaft shoulder and sleeve mixing needle.Sleeve is connected by threaded engagement with center matrix.Center matrix and sleeve all are formed in one, and center matrix can be used as independently that stirring-head welds thin plate, and there are two planes parallel to each other the sleeve outside as the sleeve retained part, is used for sleeve is loaded and unloaded.The outer surface of post of being threaded has the screw thread and the internal surface of hole threads engaged that is threaded.Sleeve needle is to different sheet metal thicknesses, to a series of different sizes should be arranged.
Technical scheme
A kind of combined type stirring friction welding agitator head at different-thickness sheet material is characterized in that comprising center matrix 1 and sleeve 2; Described center matrix 1 comprises cramping body 3, shoulder block 4, the post 5 that is threaded, the center matrix shaft shoulder 6 and matrix mixing needle 7; In the lower end of column type cramping body 3 is shoulder block 4, and the lower end of shoulder block 4 is the post 5 that is threaded, and the post 5 that is threaded connects the center matrix shaft shoulder 6 with ramp structure, and the center matrix shaft shoulder 6 centers are provided with matrix mixing needle 7; Described sleeve 2 comprises sleeve cramping body 8, threaded connection hole 9, the sleeve shaft shoulder 10 and sleeve mixing needle 11; Described sleeve 2 comprises sleeve cramping body 8, threaded connection hole 9, the sleeve shaft shoulder 10 and sleeve mixing needle 11; Sleeve clamping 8 outer surfaces are two planes parallel to each other that are used for clamping, and inside is provided with threaded connection hole 9, and threaded connection hole 9 belows are the sleeve shaft shoulder 10 with ramp structure, are provided with sleeve mixing needle 11 at the center of the sleeve shaft shoulder 10; The annexation of center matrix 1 and sleeve 2 is in the center matrix 1 coaxial insertion sleeve 2, being threaded has the internal and external threads that cooperates respectively on post 5 and the threaded connection hole 9, post 5 is connected matrix mixing needle 7 and 11 coaxial connections of sleeve mixing needle with sleeve cramping body 8 with the threaded connection hole 9 threaded engagement rear center matrix shaft shoulders 6 by being threaded.
Described center matrix mixing needle 7 and sleeve mixing needle 11 are cylindricality shaven head, cylindrical thread, taper shaven head or tapered thread form.
Described center matrix mixing needle 7 and sleeve mixing needle 11 adopt mild steel, stainless steel, high-speed steel and high temperature alloy.
When center matrix mixing needle 7 length be 2.5mm, when the center matrix shaft shoulder 6 diameters are 8mm, described sleeve mixing needle 11 length variations scopes are 4～10mm, the sleeve shaft shoulder 10 diameters are 8～24mm.
Beneficial effect
A kind of combined type stirring friction welding agitator head that the present invention proposes at different-thickness sheet material, compare with other combined type stirring-heads, the present invention is the integrated design by mixing needle and sleeve, the stress of mixing needle root is concentrated less, and adopt between center matrix and the sleeve to be threaded, simple and compact for structure, easy to assembly, stress is little, stirring-head is stressed comparatively even in the welding process, and mechanical property is better.In addition, in process, center matrix is general, only needs the sleeve of a series of different size parameters of processing to get final product, and need not to process the stirring-head of a plurality of integral body, thereby saves rapidoprint.In welding process,, only need sleeve is changed and center matrix still can continue to use if the stirring-head wearing and tearing take place.When welding at the sheet material of different materials or different-thickness, only need to change the sleeve of different size, retained part and center matrix need not to change, and have saved the stirring-head lay day, have improved welding efficiency.Simultaneously, center matrix and sleeve can be selected foreign material for use, to adapt to the welding of multiple material.
Description of drawings
Fig. 1: center matrix and sleeve assembling mode schematic diagram;
Fig. 2: center matrix project organization schematic diagram;
Fig. 3: sleeve design structural representation;
Fig. 4: sleeve vertical view;
The 1-center matrix; The 2-sleeve; The 3-cramping body; The 4-shoulder block; The 5-post that is threaded; The 6-center matrix shaft shoulder; 7-matrix mixing needle; 8-sleeve cramping body; The 9-threaded connection hole; The 10-sleeve shaft shoulder; 11-sleeve mixing needle.
The specific embodiment
Now in conjunction with the embodiments, accompanying drawing is further described the present invention:
According to soldered material difference, center matrix mixing needle 7 can adopt different material such as mild steel, stainless steel, high-speed steel and high temperature alloy to make with sleeve mixing needle 11, and center matrix 1 can be different with sleeve 2 materials.It is multi-form that center matrix mixing needle 7 and sleeve mixing needle 11 can be cylindricality shaven head, cylindrical thread, taper shaven head and tapered thread etc.In the present embodiment, center matrix mixing needle 7 length on the center matrix 1 are h=2.5mm, and the center matrix shaft shoulder 6 diameters are D=8mm, and the sleeve mixing needle 11 length variations scopes on the sleeve 2 are h=4～10mm, the desirable D=8～24mm of the sleeve shaft shoulder 10 diameters.On the threaded connection hole 9 of be threaded post 5 and the sleeve 2 of center matrix 1 internal and external threads that cooperates is arranged respectively, be used for being connected of center matrix 1 and sleeve 2, the used diameter of thread is M=16mm.
With reference to accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4.The combination stirring friction welding agitator head is made up of center matrix 1 and sleeve 2 two parts, and center matrix 1 and sleeve 2 all are formed in one, and both pass through threaded engagement; Center matrix 1 can be used as stirring-head separately, is used for the welding of thin plate.
In the present embodiment structure of center matrix 1 comprise cramping body 3, shoulder block 4, the post 5 that is threaded, the center matrix shaft shoulder 6 and matrix mixing needle 7; In the lower end of column type cramping body 3 is shoulder block 4, and the lower end of shoulder block 4 is the post 5 that is threaded, and the post 5 that is threaded connects the center matrix shaft shoulder 6 with ramp structure, and the center matrix shaft shoulder 6 centers are provided with matrix mixing needle 7; Described sleeve 2 comprises sleeve cramping body 8, threaded connection hole 9, the sleeve shaft shoulder 10 and sleeve mixing needle 11.
The structure of present embodiment middle sleeve 2 comprises sleeve cramping body 8, threaded connection hole 9, the sleeve shaft shoulder 10 and sleeve mixing needle 11; Described sleeve 2 comprises sleeve cramping body 8, threaded connection hole 9, the sleeve shaft shoulder 10 and sleeve mixing needle 11; Sleeve clamping 8 outer surfaces are two planes parallel to each other that are used for clamping, and the clamping that is used for instruments such as spanner is to make things convenient for the combination and the dismounting of center matrix 1 and sleeve 2; Inside is provided with threaded connection hole 9, and threaded connection hole 9 belows are the sleeve shaft shoulder 10 with ramp structure, are provided with sleeve mixing needle 11 at the center of the sleeve shaft shoulder 10.
Annexation is in the present embodiment: in the center matrix 1 coaxial insertion sleeve 2, being threaded has the internal and external threads that cooperates respectively on post 5 and the threaded connection hole 9, post 5 is connected matrix mixing needle 7 and 11 coaxial connections of sleeve mixing needle with sleeve cramping body 8 with the threaded connection hole 9 threaded engagement rear center matrix shaft shoulders 6 by being threaded.
Claims (4)
1. the combined type stirring friction welding agitator head at different-thickness sheet material is characterized in that comprising center matrix (1) and sleeve (2); Described center matrix (1) comprises cramping body (3), shoulder block (4), the post that is threaded (5), the center matrix shaft shoulder (6) and matrix mixing needle (7); In the lower end of column type cramping body (3) is shoulder block (4), and the lower end of shoulder block (4) is the post that is threaded (5), and the post that is threaded (5) connects the center matrix shaft shoulder (6) with ramp structure, and the center matrix shaft shoulder (6) center is provided with matrix mixing needle (7); Described sleeve (2) comprises sleeve cramping body (8), threaded connection hole (9), the sleeve shaft shoulder (10) and sleeve mixing needle (11); Described sleeve (2) comprises sleeve cramping body (8), and threaded connection hole (9, the sleeve shaft shoulder (10 and sleeve mixing needle (11); Sleeve cramping body (8) outer surface is two planes parallel to each other that are used for clamping, inside is provided with threaded connection hole (9), threaded connection hole (9) below is provided with sleeve mixing needle (11) for having the sleeve shaft shoulder (10) of ramp structure at the center of the sleeve shaft shoulder (10); The annexation of center matrix (1) and sleeve (2) is in the coaxial insertion sleeve of center matrix (1) (2), being threaded has the internal and external threads that cooperates respectively on post (5) and the threaded connection hole (9), be connected matrix mixing needle (7) and coaxial connection of sleeve mixing needle (11) with sleeve cramping body (8) with threaded connection hole (9) the threaded engagement rear center matrix shaft shoulder (6) by the post that is threaded (5).
2. according to the described combined type stirring friction welding agitator head at different-thickness sheet material of claim 1, it is characterized in that: described center matrix mixing needle (7) and sleeve mixing needle (11) are cylindricality shaven head, cylindrical thread, taper shaven head or tapered thread form.
3. according to claim 1 or 2 described combined type stirring friction welding agitator heads at different-thickness sheet material, it is characterized in that: described center matrix mixing needle (7) and sleeve mixing needle (11) adopt mild steel, stainless steel, high-speed steel and high temperature alloy.
4. according to claim 1 or 2 described combined type stirring friction welding agitator heads at different-thickness sheet material, it is characterized in that: when center matrix mixing needle (7) length be 2.5mm, when the center matrix shaft shoulder (6) diameter is 8mm, described sleeve mixing needle (11) length variations scope is 4～10mm, and the sleeve shaft shoulder (10) diameter is 8～24mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107374 CN102151979B (en) | 2011-04-28 | 2011-04-28 | Combined friction stir welding mixing head aiming at different thicknesses of sheets |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110107374 CN102151979B (en) | 2011-04-28 | 2011-04-28 | Combined friction stir welding mixing head aiming at different thicknesses of sheets |
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| CN102151979A true CN102151979A (en) | 2011-08-17 |
| CN102151979B CN102151979B (en) | 2013-08-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785024A (en) * | 2012-09-14 | 2012-11-21 | 黄山学院 | Multifunctional stirring head |
| CN103949769A (en) * | 2014-05-05 | 2014-07-30 | 西北工业大学 | Stirring head for friction stir welding used for welding parts with different thicknesses and welding method |
| CN115041784A (en) * | 2022-07-26 | 2022-09-13 | 广船国际有限公司 | Butt welding method for non-equal-height flat bulb steel |
Citations (6)
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|---|---|---|---|---|
| JP2002153979A (en) * | 2000-11-16 | 2002-05-28 | Sumitomo Light Metal Ind Ltd | Method for friction stir welding |
| US20060169740A1 (en) * | 2005-02-02 | 2006-08-03 | Kawasaki Jukogyo Kabushiki Kaisha | Welding tool for friction-stir welding apparatus |
| CN1927517A (en) * | 2006-09-15 | 2007-03-14 | 哈尔滨工业大学 | Welding tool for copper and copper alloy stirring friction welding |
| CN101176945A (en) * | 2007-12-18 | 2008-05-14 | 中国航空工业第一集团公司北京航空制造工程研究所 | Combined edging stirring friction welding agitator head |
| CN201172147Y (en) * | 2007-12-27 | 2008-12-31 | 上海航天设备制造总厂 | Adjustable stirring head |
| CN202224841U (en) * | 2011-04-28 | 2012-05-23 | 西北工业大学 | Combined type friction stir welding stirring head aiming at plates different in thickness |
-
2011
- 2011-04-28 CN CN 201110107374 patent/CN102151979B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002153979A (en) * | 2000-11-16 | 2002-05-28 | Sumitomo Light Metal Ind Ltd | Method for friction stir welding |
| US20060169740A1 (en) * | 2005-02-02 | 2006-08-03 | Kawasaki Jukogyo Kabushiki Kaisha | Welding tool for friction-stir welding apparatus |
| CN1927517A (en) * | 2006-09-15 | 2007-03-14 | 哈尔滨工业大学 | Welding tool for copper and copper alloy stirring friction welding |
| CN101176945A (en) * | 2007-12-18 | 2008-05-14 | 中国航空工业第一集团公司北京航空制造工程研究所 | Combined edging stirring friction welding agitator head |
| CN201172147Y (en) * | 2007-12-27 | 2008-12-31 | 上海航天设备制造总厂 | Adjustable stirring head |
| CN202224841U (en) * | 2011-04-28 | 2012-05-23 | 西北工业大学 | Combined type friction stir welding stirring head aiming at plates different in thickness |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785024A (en) * | 2012-09-14 | 2012-11-21 | 黄山学院 | Multifunctional stirring head |
| CN103949769A (en) * | 2014-05-05 | 2014-07-30 | 西北工业大学 | Stirring head for friction stir welding used for welding parts with different thicknesses and welding method |
| CN115041784A (en) * | 2022-07-26 | 2022-09-13 | 广船国际有限公司 | Butt welding method for non-equal-height flat bulb steel |
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| CN102151979B (en) | 2013-08-14 |
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