CN105108310A - Stirring friction point welding machine - Google Patents

Stirring friction point welding machine Download PDF

Info

Publication number
CN105108310A
CN105108310A CN201510573339.5A CN201510573339A CN105108310A CN 105108310 A CN105108310 A CN 105108310A CN 201510573339 A CN201510573339 A CN 201510573339A CN 105108310 A CN105108310 A CN 105108310A
Authority
CN
China
Prior art keywords
stirring
head body
groove
welding machine
shaft shoulder
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.)
Pending
Application number
CN201510573339.5A
Other languages
Chinese (zh)
Inventor
赵欣
杨洪刚
蔡智亮
沈金华
谷国迎
许雄
李彦国
谷斐
郝存
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNSHAN SIGEWEI ELECTRONIC TECHNOLOGY Co Ltd
Original Assignee
KUNSHAN SIGEWEI ELECTRONIC TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KUNSHAN SIGEWEI ELECTRONIC TECHNOLOGY Co Ltd filed Critical KUNSHAN SIGEWEI ELECTRONIC TECHNOLOGY Co Ltd
Priority to CN201510573339.5A priority Critical patent/CN105108310A/en
Publication of CN105108310A publication Critical patent/CN105108310A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-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
    • B23K20/122Non-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
    • B23K20/1245Non-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
    • B23K20/1255Tools therefor, e.g. characterised by the shape of the probe
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-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
    • B23K20/122Non-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
    • B23K20/1265Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds

Abstract

The present invention discloses a stirring friction point welding machine. The machine comprises a stirring head body arranged on a friction welding machine and a stirring pin disposed at a bottom part of the stirring head body, a plurality of grooves formed in an axial direction of the stirring head body are arranged in a spaced manner on an outer surface of the stirring head body, each groove is internally provided with a sealed-type hollow heat conduction pipe, a vacuum inner cavity of the hollow heat conduction pipe is filled with an absorption-type heat transfer medium, support members for fixing the hollow heat conduction pipe are arranged between an outer pipe wall of the hollow heat conduction pipe and a groove wall of the groove, and heat dissipation cavities allowing air circulation are formed between the outer pipe wall of the hollow heat conduction pipe and the groove wall of the groove. The stirring friction point welding machine is compact in structure, convenient to assemble and disassemble, easy to manufacture, safe, reliable and practical, rapid and efficient temperature reduction of the stirring head is realized, and stable strength and a long service life are ensured; an embedded-type temperature reduction method is adopted, the size is not raised, a contact area of the stirring head body and an inner shaft shoulder is reduced, frictional resistance is lowered, and service lives of the stirring head body and the inner shaft shoulder are prolonged.

Description

A kind of friction stir spot welding machine
Technical field
The present invention relates to a kind of welding equipment, particularly relate to a kind of friction stir spot welding machine, belong to welding technology field.
Background technology
The contemporary metal solid-phase thermal press welding method of friction welding (FW) to be a kind of with frictional heat be thermal source, namely makes versus high motion the faying face of two kinds of weldments, makes contact portion reach mecystasis by means of frictional heat, more a kind of process linked into an integrated entity through pressurization.It is one and contains the extremely interactional complex process of heat, power, metallurgy, mass transfer.Friction welding method is high with its stable technical process, welding quality, solderability, production efficiency are high, with low cost widely, and is widely used in the branch of industry such as the high-tech sectors such as Aeronautics and Astronautics, nuclear energy, ocean development and electric power, machine-building, oil drilling, automobile making.
Friction welding (FW) is mainly classified according to the relative motion form of workpiece and process characteristic, can be divided into by workpiece relative motion form: Continuous Drive Friction Welding, flywheel friction welding, friction stir welding, phase friction welding, radial direction friction welding, linear friction welding, track friction welding (FW) and embed friction welding (FW) etc.Wherein, friction stir welding welding process is not without splashing, smoke dust, pore-free, without slag inclusion, need packing material, and energy consumption is low, environmentally safe, is a kind of desirable green interconnection technique.
In spot-welded process, stirring-head forms tack-weld thus the connection realized between upper and lower plates in fixed position; This process mainly comprises three phases, and namely stirring-head process of press in, connection procedure and stirring-head withdraw process.
But at present, mainly concentrate in aluminium alloy in the research of friction stir spot welding, comprise the impact of welding condition (stirring-head speed, the time of staying and compression distance etc.) and configuration of pin (comprising mixing needle, shaft shoulder physical dimension and shape etc.) butt joint microstructure and mechanical property, seldom relate to the High-temperature cooling problem of device.
Especially when welding refractory metal, downforce and the rotating speed of stirring-head is increased in order to increase heat input and welding efficiency, stirring-head temperature can be made to increase rapidly, make stirring-head high temperature and intensity reduces, not only aggravate the wearing and tearing of stirring-head, the mixing needle of stirring-head can be caused time serious to rupture, and make welding quality degradation, and affect the service life of stirring-head.
Summary of the invention
Main purpose of the present invention is, overcomes deficiency of the prior art, provides a kind of friction stir spot welding machine of new structure, is specially adapted to weld refractory metal.
Technical problem to be solved by this invention is to provide easy, safe and reliable, the practical friction stir spot welding machine of compact conformation, easy accessibility, making, not only realize the rapidly and efficiently cooling of stirring-head, guarantee that the working strength of stirring-head is stablized, extend the service life of stirring-head; And adopt embedded cooling, do not increase volume, there is the value in industry.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of friction stir spot welding machine, comprise the stirring-head body be arranged on friction-welding machine and the mixing needle being positioned at stirring-head body bottom portion, the outer surface of described stirring-head body is arranged at intervals with the groove of slotting in several axial length directions along stirring-head body.
Wherein, in described groove, be provided with enclosed hollow heat pipe, in the vacuum lumen of described hollow heat pipe, be filled with absorption heat transfer medium; Be provided with the support member of fixing hollow heat pipe between the outer tube wall of described hollow heat pipe and the cell wall of groove, and make between the outer tube wall of hollow heat pipe and the cell wall of groove, to form the heat dissipation cavity for air circulation.
The present invention is set to further: also comprise the interior shaft shoulder and the outer shaft shoulder that are set in turn in stirring-head body, and the axial length size that the axial length size of the interior shaft shoulder and the outer shaft shoulder is all less than groove makes the top of heat dissipation cavity keep air through with extraneous; The described interior shaft shoulder can move up and down and pivot, outside the described interior shaft shoulder, outer shaft shoulder medial surface, mixing needle and be formed with volume space between welded piece surface after the interior shaft shoulder upwards rises.
The present invention is set to further: also comprise temperature sensor, described temperature sensor buried in stirring-head body, one end is connected with temperature data wireless transport module, the other end extends into stirring-head body bottom near the junction of mixing needle and stirring-head body.
The present invention is set to further: described groove has been spacedly distributed four.
The present invention is set to further: described groove is U-type groove.
The present invention is set to further: groove axially bottom cell wall by being welded and fixed is stretched in the hot junction, bottom of described hollow heat pipe.
The present invention is set to further: described absorption heat transfer medium is lithium-bromide solution.
The present invention is set to further: described mixing needle is installed on the bottom of stirring-head body by snap joint.
Compared with prior art, the beneficial effect that the present invention has is:
By offering groove in stirring-head body, the hollow heat pipe being located at groove in being passed through by high temperature rapidly and efficiently conducts, and pass through the highly effective air convection current of heat dissipation cavity, heat transfer type is made to integrate conduction and convection, thus significantly improve heat transfer property and heat-sinking capability, realize the rapidly and efficiently cooling of stirring-head, can guarantee that the service life of stirring-head is stablized, extended to the working strength of stirring-head; And adopt embedded cooling structure form, do not increase volume, make compact conformation, neat appearance.In addition, the setting of groove, makes the contact area of stirring-head body and the interior shaft shoulder significantly reduce, thus both realizing, the frictional resistance of motion mutually reduces greatly, extends the service life of stirring-head body and the interior shaft shoulder simultaneously.
Foregoing is only the general introduction of technical solution of the present invention, and in order to clearer understanding technological means of the present invention, below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of friction stir spot welding machine of the present invention;
Fig. 2 is the A-A direction structure schematic diagram of stirring-head body in Fig. 1.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figures 1 and 2, a kind of friction stir spot welding machine, comprise the stirring-head body 1 be arranged on friction-welding machine and the mixing needle 2 be positioned at bottom stirring-head body 1, the outer surface of described stirring-head body 1 is arranged at intervals with the groove 3 of slotting in several axial length directions along stirring-head body 1; Described groove 3 is U-type groove, and the outer surface along stirring-head body 1 has been spacedly distributed four.
Be provided with enclosed hollow heat pipe 31 in described groove 3, be filled with absorption heat transfer medium 30 in the vacuum lumen of described hollow heat pipe 31, such as fill lithium-bromide solution; Groove 3 axially bottom cell wall by being welded and fixed is stretched in the hot junction, bottom of described hollow heat pipe 31.
Be provided with the support member 32 of fixing hollow heat pipe 31 between the outer tube wall of described hollow heat pipe 31 and the cell wall of groove 3, and make between the outer tube wall of hollow heat pipe 31 and the cell wall of groove 3, to form the heat dissipation cavity 33 for air circulation.
Also comprise the interior shaft shoulder 4 and the outer shaft shoulder 5 that are set in turn in stirring-head body 1, the axial length size that the axial length size of the interior shaft shoulder 4 and the outer shaft shoulder 5 is all less than groove 3 makes the top of heat dissipation cavity 33 keep air through with extraneous; The described interior shaft shoulder 4 can move up and down and pivot, and is formed with volume space 20 outside the described interior shaft shoulder 4, the outer shaft shoulder 5 medial surface, mixing needle 2 and between welded piece 10 surface after the interior shaft shoulder 3 upwards rises.Described volume space 20 is used for storing and is stirred pin 2 and stirs the plastic deforming metal extruded, and is filled up by keyhole, realize welding without keyhole, guarantee welding quality at the end of welding by the interior shaft shoulder 3 metal extruding storage that declines.
Also comprise temperature sensor 6, described temperature sensor 6 buried in stirring-head body 1, one end is connected with temperature data wireless transport module 7, the other end extends into stirring-head body 1 bottom near the junction of mixing needle 2 with stirring-head body 1.By the temperature acquisition of temperature sensor 6, and the data transmission of temperature data wireless transport module 7, the in real time variations in temperature of monitoring stirring-head body 1, be conducive to judgment device better and continue to use or shut down.
Described mixing needle 2 is installed on the bottom of stirring-head body 1 by snap joint 8, the convenient replacing carrying out separately mixing needle 2, cost-saved, improves efficiency of assembling.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (8)

1. a friction stir spot welding machine, it is characterized in that: comprise the stirring-head body be arranged on friction-welding machine and the mixing needle being positioned at stirring-head body bottom portion, the outer surface of described stirring-head body is arranged at intervals with the groove of slotting in several axial length directions along stirring-head body;
Be provided with enclosed hollow heat pipe in described groove, in the vacuum lumen of described hollow heat pipe, be filled with absorption heat transfer medium; Be provided with the support member of fixing hollow heat pipe between the outer tube wall of described hollow heat pipe and the cell wall of groove, and make between the outer tube wall of hollow heat pipe and the cell wall of groove, to form the heat dissipation cavity for air circulation.
2. a kind of friction stir spot welding machine according to claim 1, it is characterized in that: also comprise the interior shaft shoulder and the outer shaft shoulder that are set in turn in stirring-head body, the axial length size that the axial length size of the interior shaft shoulder and the outer shaft shoulder is all less than groove makes the top of heat dissipation cavity keep air through with extraneous;
The described interior shaft shoulder can move up and down and pivot, outside the described interior shaft shoulder, outer shaft shoulder medial surface, mixing needle and be formed with volume space between welded piece surface after the interior shaft shoulder upwards rises.
3. a kind of friction stir spot welding machine according to claim 1, it is characterized in that: also comprise temperature sensor, described temperature sensor buried in stirring-head body, one end is connected with temperature data wireless transport module, the other end extends into stirring-head body bottom near the junction of mixing needle and stirring-head body.
4. a kind of friction stir spot welding machine according to claim 1, is characterized in that: described groove has been spacedly distributed four.
5. a kind of friction stir spot welding machine according to claim 1, is characterized in that: described groove is U-type groove.
6. a kind of friction stir spot welding machine according to claim 1, is characterized in that: groove axially bottom cell wall by being welded and fixed is stretched in the hot junction, bottom of described hollow heat pipe.
7. a kind of friction stir spot welding machine according to claim 1, is characterized in that: described absorption heat transfer medium is lithium-bromide solution.
8. a kind of friction stir spot welding machine according to claim 1, is characterized in that: described mixing needle is installed on the bottom of stirring-head body by snap joint.
CN201510573339.5A 2015-09-10 2015-09-10 Stirring friction point welding machine Pending CN105108310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510573339.5A CN105108310A (en) 2015-09-10 2015-09-10 Stirring friction point welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510573339.5A CN105108310A (en) 2015-09-10 2015-09-10 Stirring friction point welding machine

Publications (1)

Publication Number Publication Date
CN105108310A true CN105108310A (en) 2015-12-02

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Family Applications (1)

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110860782A (en) * 2019-11-25 2020-03-06 上海航天设备制造总厂有限公司 Continuous material succession filling friction spot welding tool and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101537529A (en) * 2009-04-24 2009-09-23 重庆大学 Pin tool for friction stir welding and ultrafine grain preparation method thereof
CN101537538A (en) * 2009-04-24 2009-09-23 重庆大学 Integrated pin tool for friction stir welding and composite method of resistance-friction stir welding thereof
CN201465641U (en) * 2009-08-21 2010-05-12 顾自泉 Electric power cable
KR20110075768A (en) * 2009-12-29 2011-07-06 주식회사 포스코 Friction stir welding device
CN103042290A (en) * 2013-01-05 2013-04-17 新疆门户投资管理有限公司 Miniature heatproof moisture-proof welder
CN203887386U (en) * 2014-06-25 2014-10-22 安阳工学院 Composite aluminum alloy friction stir welding main shaft
CN204329147U (en) * 2014-12-12 2015-05-13 江苏巨鼎新能源科技有限公司 Absorption high-efficiency radiator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101537529A (en) * 2009-04-24 2009-09-23 重庆大学 Pin tool for friction stir welding and ultrafine grain preparation method thereof
CN101537538A (en) * 2009-04-24 2009-09-23 重庆大学 Integrated pin tool for friction stir welding and composite method of resistance-friction stir welding thereof
CN201465641U (en) * 2009-08-21 2010-05-12 顾自泉 Electric power cable
KR20110075768A (en) * 2009-12-29 2011-07-06 주식회사 포스코 Friction stir welding device
CN103042290A (en) * 2013-01-05 2013-04-17 新疆门户投资管理有限公司 Miniature heatproof moisture-proof welder
CN203887386U (en) * 2014-06-25 2014-10-22 安阳工学院 Composite aluminum alloy friction stir welding main shaft
CN204329147U (en) * 2014-12-12 2015-05-13 江苏巨鼎新能源科技有限公司 Absorption high-efficiency radiator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110860782A (en) * 2019-11-25 2020-03-06 上海航天设备制造总厂有限公司 Continuous material succession filling friction spot welding tool and method
CN110860782B (en) * 2019-11-25 2021-11-16 上海航天设备制造总厂有限公司 Continuous material succession filling friction spot welding tool and method

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Application publication date: 20151202