CN205166172U - Backfill formula friction stir spot welding device - Google Patents
Backfill formula friction stir spot welding device Download PDFInfo
- Publication number
- CN205166172U CN205166172U CN201521011871.XU CN201521011871U CN205166172U CN 205166172 U CN205166172 U CN 205166172U CN 201521011871 U CN201521011871 U CN 201521011871U CN 205166172 U CN205166172 U CN 205166172U
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- oversleeve
- ball
- screw
- axle
- shaft
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Abstract
The utility model provides a backfill formula friction stir spot welding device, relates to friction stir welding and meets technical field, presss from both sides the cover and fixes tip under the shell body, and in the clamp cover was located to the oversleeve cover, the shank -pin cover was equipped with the quill shaft motor in locating the oversleeve, is equipped with hollow oversleeve axle in the quill shaft motor, is equipped with the shank -pin axle in the oversleeve axle, and the oversleeve axle links to each other with the oversleeve, and the shank -pin axle links to each other with shank -pin, the epaxial side of oversleeve is equipped with the ball that the screw rod is the cavity screw rod, and in a ball's screw rod was worn to locate by the shank -pin axle, a ball's screw rod lower extreme was equipped with primary shaft bolster, and the epaxial tip of oversleeve is installed on primary shaft bolster, the epaxial side of shank -pin is equipped with the 2nd ball, and the 2nd ball's screw rod lower extreme is equipped with the secondary shaft bolster, and the epaxial tip of shank -pin is installed on the secondary shaft bolster, first power supply and second power supply are continuous with the nut of two lead screws respectively. Have simple structure, system stability height, welding precision is high, effectual, advantages such as long service life.
Description
Technical field
The present invention relates to agitating friction solder technology field, say it is that a kind of structure is simple, the stability of a system is high in detail, welding precision is high, effective, the backfill type stirring friction spot welding device of long service life.
Background technology
Along with society is to the pay attention to day by day of energy-conserving and environment-protective, lightweight becomes the developing direction of the industry manufacture field such as the Modern Traffic such as automobile, motor-car transport service and Aero-Space.This makes the application of light-weight high-strength material as aluminium alloy, magnesium alloy etc. obtain to pay close attention to more and more widely, but also has higher requirement to the interconnection technique of these materials simultaneously.Aluminium alloy is light with its quality, intensity advantages of higher, is widely used in all trades and professions in a large number, especially automobile, aircraft industry.At present, the main connected mode of aluminium alloy is resistance spot welding and riveted joint, but they exist many limitation and defect, constrain the application of aluminium alloy at industrial circle.
Friction stir spot welding (FrictionStirSpotWelding, being called for short FSSW) technology arises at the historic moment, it is a kind of novel Solid-phase welding technology researched and developed on the basis of friction stir welding (FrictionStirWelding is called for short FSW) technology.Adopt FSSW technology can form the lap joint of similar resistance spot welding and riveted joint, and it is high to have joint quality, welding quality stable, is out of shape the advantages such as little and energy-efficient, effectively compensate for the defect of resistance spot welding and riveted joint.The appearance of backfill type friction stir spot welding successfully solves again the problem leaving keyhole after traditional friction stir spot welding has welded at solder joint center, can once obtain without the better lap joint of keyhole, mechanical property, production efficiency is high and easily be automated.There is dynamic transfer system complexity, poor stability in existing backfill type stirring friction spot welding device, mixing needle, oversleeve easily deformation occur, and spot welding weak effect, service life are short, the shortcomings such as device overall volume is large.
State Intellectual Property Office discloses a key name in November, 2013 and is called: the application for a patent for invention of a kind of backfill type friction stir welding method and device, application number: 201310347507.X thereof, although the arrangement achieves the function of backfill type friction stir spot welding, but still there is following defect in it: one, mixing needle drives oversleeve to rotate by spline pair, that internal layer drives outer rotation, moment of torsion is large, and power demand is high, efficiency is low; Two, complicated mechanism, volume are large, easily produce that rotary inertia is large, elastic deformation, backlass, motion delay, friction, vibration, the problem such as noise and wearing and tearing, resistance to overturning is poor; Three, during work, there is lateral load in the power point of application that mixing needle and oversleeve move up and down and resistance stress point disalignment, mixing needle and oversleeve produce deformation, welding precision is low, weak effect, mixing needle and oversleeve and outer inner room easy to wear due to deformation, service life is short.Four, dual power source double lead-screw drives mixing needle and oversleeve to move up and down respectively, complex structure, wasting space, the long driving of leading screw, poor stability.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide that a kind of structure is simple, the stability of a system is high, welding precision is high, effective, the backfill type stirring friction spot welding device of long service life.
The present invention solves the technical scheme that above-mentioned the deficiencies in the prior art adopt:
A kind of backfill type stirring friction spot welding device, comprise shell body and by mixing needle, tubular sleeve, the stirring-head of chuck composition, chuck is fixed on shell body bottom, oversleeve free to rotate and slide up and down be sheathed in chuck, mixing needle can slide up and down and is sheathed in oversleeve, it is characterized in that being provided with hollow shaft motor in shell body, the oversleeve axle of hollow is provided with in the hollow main shaft of hollow shaft motor, stirring needle shaft is provided with in oversleeve axle, oversleeve axle and stirring needle shaft are splined shaft, hollow main shaft is provided with the oversleeve spline housing matched with oversleeve axle, oversleeve axle is provided with and the mixing needle spline housing stirring needle shaft and match, oversleeve axle lower end is connected with oversleeve, stir needle shaft lower end to be connected with mixing needle, the first ball-screw is provided with above oversleeve axle in shell body, the screw rod of the first ball-screw is hollow screw, stir needle shaft can slide up and down be arranged in the first ball-screw screw rod in, the screw rod lower end of the first ball-screw is provided with clutch shaft bearing frame, and oversleeve axle upper end is arranged on clutch shaft bearing frame through bearing, be provided with the second ball-screw above stirring needle shaft in shell body, the screw rod lower end of the second ball-screw is provided with the second bearing bracket stand, stirs needle shaft upper end and is arranged on the second bearing bracket stand through bearing, be provided with the first power source and the second power source, the first power source and the second power source are connected with the nut of the first ball-screw with the second ball-screw respectively.
The hollow main shaft of the hollow shaft motor described in the present invention, oversleeve axle, stirring needle shaft, the screw rod of the first ball-screw and the screw coaxial of the second ball-screw.
The first power source described in the present invention and the second power source are servomotor, and two servomotors are connected with the nut of the first ball-screw with the second ball-screw respectively through transmission device.
First servomotor is connected, for driving the nut rotation of the first ball-screw through planetary reduction gear, small pulley, Timing Belt and the large belt wheel be fixed on the first ball-screw nut; In like manner, the second servomotor is connected, for driving the nut rotation of the second ball-screw through another set of planetary reduction gear, small pulley, Timing Belt and the large belt wheel be fixed on the second ball-screw nut.
Shell body described in the present invention is combined by least two parts.Be convenient to handling of the present invention and maintenance.
Hollow shaft motor described in the present invention is hollow shaft servo motor, and hollow shaft servo motor and the first power source are connected with controller respectively with the control end of the second power source.Controller is for controlling its duty.
The present invention operationally, hollow shaft motor, the first power source, the second power source are communicated with power supply with the power line of controller, pressue device is used to drive spot welding device of the present invention, chuck is made to be pressed on workpiece to be welded, first power source, the second power source work, drive oversleeve and mixing needle are close to workpiece surface, hollow shaft motor work, drive oversleeve and mixing needle rotate, and with friction of workpiece heat-dissipating, workpiece material are plastified; When workpiece material reaches enough mecystasises, by controlling the first power source and the second power source makes oversleeve press down, mixing needle rises or oversleeve rises, and mixing needle presses down.Rising is to provide space to plastic material, and pressing down is to stir plastic material, promotes that it merges.When mixing needle or oversleeve press down reach throat thickness requirement time, mixing needle and the reverse relative motion of oversleeve, promote that further material merges, and plays backfill effect simultaneously.When plane before mixing needle and oversleeve counter motion to welding, pressue device drives spot welding device of the present invention to rise, and chuck leaves workpiece, and welding completes.The present invention has that dynamic transfer system is simple, power transmission is stablized, can not because there is deformation by radial load in mixing needle and oversleeve, effectively alleviate the problems such as friction, vibration, noise and wearing and tearing, resistance to overturning is high, welding effect is good, long service life, the advantages such as device overall volume is little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Backfill type stirring friction spot welding device as shown in Figure 1, comprise shell body 16 and by mixing needle 13, tubular sleeve 11, the stirring-head that chuck 12 forms, chuck 12 is fixed on shell body 16 bottom, for compressing workpiece to be welded, oversleeve 11 free to rotate and slide up and down be sheathed in chuck 12, mixing needle 13 can slide up and down and is sheathed in oversleeve 11, oversleeve 11 is minute surface with the contact surface of mixing needle 13 and the contact surface of oversleeve and chuck, hollow shaft motor 10 is provided with in shell body, the oversleeve axle 8 of hollow is provided with in the hollow main shaft 9 of hollow shaft motor 10, be provided with in oversleeve axle 8 and stir needle shaft 1, oversleeve axle 8 and stirring needle shaft 1 are splined shaft, hollow main shaft 9 is provided with the oversleeve spline housing 15 matched with oversleeve axle 8, oversleeve axle 8 is provided with and the mixing needle spline housing 14 stirring needle shaft 1 and match, hollow main shaft 9 is through oversleeve spline housing 15 transmission, oversleeve axle 8 is driven to rotate, oversleeve axle 8 stirs needle shaft 1 rotate through mixing needle spline housing 14 transmission, drive, oversleeve axle can slide up and down in hollow main shaft, and stirring needle shaft can slide up and down in oversleeve axle, and oversleeve axle lower end is connected with oversleeve, stirs needle shaft lower end and is connected with mixing needle, oversleeve axle drives the coaxial synchronous of inner both stirring needle shaft realizations to rotate by spline form, adopts outer shroud to drive the motion of inner ring, has the advantage that driving moment is little, reduce the beneficial effects such as power.The first ball-screw is provided with above oversleeve axle in shell body 16, the screw rod 2 of the first ball-screw is hollow screw, stirring needle shaft can slide up and down and is arranged in the screw rod 2 of the first ball-screw, screw rod 2 lower end of the first ball-screw is provided with clutch shaft bearing frame 6, and oversleeve axle upper end is arranged on clutch shaft bearing frame 6 through bearing 7; Be provided with the second ball-screw above stirring needle shaft in shell body, screw rod 22 lower end of the second ball-screw is provided with the second bearing bracket stand 18, stirs needle shaft upper end and is arranged on the second bearing bracket stand 18 through bearing 17; The screw rod of the first ball-screw and clutch shaft bearing frame, the screw rod of the second ball-screw and the ad hoc structure of the second bearing bracket stand achieve oversleeve axle and stir needle shaft can also axially-movable while High Rotation Speed, and ensure that the axiality of oversleeve and mixing needle and chuck.Be provided with the first power source 23 and the second power source 24, first power source 23 is connected with the nut of the first ball-screw with the second ball-screw respectively with the second power source 24, rotate for drive nut, the screw rod of ball-screw is driven to move up and down, as can be seen from Figure 1, the nut of the first ball-screw and the second ball-screw through the location and installation of coaxial bearing in shell body, concrete, coaxially in shell body be provided with clutch shaft bearing 5 and the second bearing 19, coaxial first belt wheel 4 and second largest belt wheel 20 is respectively equipped with in clutch shaft bearing 5 and the second bearing 19, the nut 3 of the first ball-screw is coaxially fixedly connected with second largest belt wheel 20 with first belt wheel 4 respectively with the nut 21 of the second ball-screw.The screw rod 22 of the hollow main shaft 9 of described hollow shaft motor 10, oversleeve axle 8, the screw rod 2 stirring needle shaft 1, first ball-screw and the second ball-screw is coaxial.In the present embodiment, hollow shaft motor 10 is that hollow is without frame servomotor, the use of hollow servomotor solves the tilting moment problem that traditional servo motor and Timing Belt connecting gear bring, better ensure that the axiality of oversleeve and mixing needle and chuck, and the driving-chain making driving oversleeve and mixing needle rotate shortens to zero, thus avoid the problem such as backlass, motion delay, friction, vibration, noise and wearing and tearing using conventional drives to bring.The first described power source and the second power source are servomotor, and two servomotors are connected with the nut of the first ball-screw with the second ball-screw respectively through transmission device; For driving the nut rotation of the first ball-screw and the second ball-screw.First servomotor is connected, for driving the nut rotation of the first ball-screw through planetary reduction gear, small pulley, Timing Belt and the large belt wheel be fixed on the first ball-screw nut; In like manner, the second servomotor is connected, for driving the nut rotation of the second ball-screw through another set of planetary reduction gear, small pulley, Timing Belt and the large belt wheel be fixed on the second ball-screw nut; The co-axial shafts of oversleeve and mixing needle adopts ball-screw nut to be embedded in synchronous pulley to relative motion, and adopt the structure of hollow ball screw, avoid and drive the power source of oversleeve and mixing needle axially-movable and its disalignment and the disadvantageous tilting moment brought.
The present invention improves further, and described shell body is combined by multi-segmental, is convenient to handling of the present invention and maintenance.Described hollow shaft motor is hollow shaft servo motor, and hollow shaft servo motor and the first power source are connected with controller respectively with the control end of the second power source; Controller is for controlling the duty of motor and power source.
The present invention operationally, hollow shaft motor, the first power source, the second power source are communicated with power supply with the power line of controller, pressue device is used to drive spot welding device of the present invention, chuck is made to be pressed on workpiece to be welded, first power source, the second power source work, drive oversleeve and mixing needle are close to workpiece surface, hollow shaft motor work, drive oversleeve and mixing needle rotate, and with friction of workpiece heat-dissipating, workpiece material are plastified; When workpiece material reaches enough mecystasises, by controlling the first power source and the second power source makes oversleeve press down, mixing needle rises or oversleeve rises, and mixing needle presses down.Rising is to provide space to plastic material, and pressing down is to stir plastic material, promotes that it merges.When mixing needle or oversleeve press down reach throat thickness requirement time, mixing needle and the reverse relative motion of oversleeve, promote that further material merges, and plays backfill effect simultaneously.When plane before mixing needle and oversleeve counter motion to welding, pressue device drives spot welding device of the present invention to rise, and chuck leaves workpiece, and welding completes.The present invention has that dynamic transfer system is simple, power transmission is stablized, can not because there is deformation by radial load in mixing needle and oversleeve, effectively alleviate the problems such as friction, vibration, noise and wearing and tearing, resistance to overturning is high, welding effect is good, long service life, the advantages such as device overall volume is little.
Claims (5)
1. a backfill type stirring friction spot welding device, comprise shell body and by mixing needle, oversleeve, the stirring-head of chuck composition, chuck is fixed on shell body bottom, oversleeve free to rotate and slide up and down be sheathed in chuck, mixing needle can slide up and down and is sheathed in oversleeve, it is characterized in that being provided with hollow shaft motor in shell body, the oversleeve axle of hollow is provided with in the hollow main shaft of hollow shaft motor, stirring needle shaft is provided with in oversleeve axle, oversleeve axle and stirring needle shaft are splined shaft, hollow main shaft is provided with the oversleeve spline housing matched with oversleeve axle, oversleeve axle is provided with and the mixing needle spline housing stirring needle shaft and match, oversleeve axle lower end is connected with oversleeve, stir needle shaft lower end to be connected with mixing needle, the first ball-screw is provided with above oversleeve axle in shell body, the screw rod of the first ball-screw is hollow screw, stir needle shaft can slide up and down be arranged in the first ball-screw screw rod in, the screw rod lower end of the first ball-screw is provided with clutch shaft bearing frame, and oversleeve axle upper end is arranged on clutch shaft bearing frame through bearing, be provided with the second ball-screw above stirring needle shaft in shell body, the screw rod lower end of the second ball-screw is provided with the second bearing bracket stand, stirs needle shaft upper end and is arranged on the second bearing bracket stand through bearing, be provided with the first power source and the second power source, the first power source and the second power source are connected with the nut of the first ball-screw with the second ball-screw respectively.
2. backfill type stirring friction spot welding device according to claim 1, is characterized in that the hollow main shaft of described hollow shaft motor, oversleeve axle, stirs needle shaft, the screw rod of the first ball-screw and the screw coaxial of the second ball-screw.
3. backfill type stirring friction spot welding device according to claim 1 and 2, it is characterized in that the first described power source and the second power source are servomotor, two servomotors are connected with the nut of the first ball-screw with the second ball-screw respectively through transmission device.
4. backfill type stirring friction spot welding device according to claim 3, is characterized in that described shell body is combined by least two parts.
5. the backfill type stirring friction spot welding device according to claim 1 or 2 or 4, it is characterized in that described hollow shaft motor is hollow shaft servo motor, hollow shaft servo motor and the first power source are connected with controller respectively with the control end of the second power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011871.XU CN205166172U (en) | 2015-12-09 | 2015-12-09 | Backfill formula friction stir spot welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521011871.XU CN205166172U (en) | 2015-12-09 | 2015-12-09 | Backfill formula friction stir spot welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205166172U true CN205166172U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521011871.XU Withdrawn - After Issue CN205166172U (en) | 2015-12-09 | 2015-12-09 | Backfill formula friction stir spot welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205166172U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364298A (en) * | 2015-12-09 | 2016-03-02 | 哈尔滨工业大学（威海） | Backfill type stir friction spot welding device |
| CN107442927A (en) * | 2017-08-22 | 2017-12-08 | 天津大学 | A kind of backfill formula friction stir spot welding mainshaft head mechanism in situ |
| CN109108207A (en) * | 2018-09-26 | 2019-01-01 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of friction plug rivet welding connector forces molding machine and its welding method |
| CN115655867A (en) * | 2022-11-22 | 2023-01-31 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
| CN115655867B (en) * | 2022-11-22 | 2024-04-30 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
-
2015
- 2015-12-09 CN CN201521011871.XU patent/CN205166172U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364298A (en) * | 2015-12-09 | 2016-03-02 | 哈尔滨工业大学（威海） | Backfill type stir friction spot welding device |
| CN105364298B (en) * | 2015-12-09 | 2017-12-19 | 哈尔滨工业大学（威海） | A kind of backfill formula stirring friction spot welding device |
| CN107442927A (en) * | 2017-08-22 | 2017-12-08 | 天津大学 | A kind of backfill formula friction stir spot welding mainshaft head mechanism in situ |
| CN107442927B (en) * | 2017-08-22 | 2019-04-23 | 天津大学 | A kind of backfill formula friction stir spot welding mainshaft head mechanism in situ |
| CN109108207A (en) * | 2018-09-26 | 2019-01-01 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of friction plug rivet welding connector forces molding machine and its welding method |
| CN115655867A (en) * | 2022-11-22 | 2023-01-31 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
| CN115655867B (en) * | 2022-11-22 | 2024-04-30 | 哈尔滨工业大学 | Mechanical controller with vertical load application and horizontal circumferential rotation functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160420 Effective date of abandoning: 20171219 |
|
| AV01 | Patent right actively abandoned |