CN104232852B - A kind of strengthening of air bleeding valve surface laser fixing device and laser-quenching method thereof - Google Patents
A kind of strengthening of air bleeding valve surface laser fixing device and laser-quenching method thereof Download PDFInfo
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- CN104232852B CN104232852B CN201410477862.3A CN201410477862A CN104232852B CN 104232852 B CN104232852 B CN 104232852B CN 201410477862 A CN201410477862 A CN 201410477862A CN 104232852 B CN104232852 B CN 104232852B
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- air bleeding
- bleeding valve
- mounting seat
- scroll chuck
- strengthening
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Abstract
A kind of strengthening of air bleeding valve surface laser fixing device and laser-quenching method thereof, including fixed mount, fixed mount is provided with a mounting seat, mounting seat is fixed on fixed mount by governor motion and can do front and back certain angle oscillation adjustment, mounting seat is coaxially arranged with ejector pin component for fixing air bleeding valve from top to bottom, for the copper billet dispelled the heat, the motor of scroll chuck and vernier angle, scroll chuck and motor are separately positioned on the two ends up and down of mounting seat, ejector pin component is arranged on the top of scroll chuck by inverse-U-shape rack, the output shaft of motor is connected through the centre bore of mounting seat with the bottom of scroll chuck, copper billet is fixed on scroll chuck and can rotate with scroll chuck under the driving of motor, the conical surface end of air bleeding valve is arranged on copper billet, stock end is fixed by ejector pin component。Present configuration advantages of simple, easy to operate, not only can realize fixedly securing air bleeding valve, and easy to adjust, control accurately, to obtain and strengthen effect preferably。
Description
Technical field
The invention belongs to Surface Machining and technical field of modification, relate to a kind of strengthening of air bleeding valve surface laser fixing device and using method thereof。
Background technology
" 12 " period, military-civil electromotor is had higher requirement by China, especially the power of electromotor is had higher requirement。Therefore, the cylinder diameter of electromotor needs to reduce, and the cylinder combustion explosion pressure of engine power density, engine speed and diesel engine then needs to be significantly increased。Thus, the thermic load of the parts such as engine exhaust valve and delivery valve seat and mechanical load will increase。
Air bleeding valve is one of strength member in Diesel engine, and it is chronically at high-temperature fuel gas corrosion and change impacts working under load repeatedly, and working condition is very severe。Raising along with electromotor general power and power density, fuel gas temperature is up to about 600～900 DEG C, air bleeding valve is the thermally stressed synergy with high-temperature fuel gas dielectric corrosion not only, and air bleeding valve is subject to the impact alternate load and the spring-force driven dual that are caused by inertia force, these shock loadings reach as high as tens thousand of newton, so that the residual stress of the air bleeding valve conical surface and end reaches thousands of MPas。When this extreme operating condition, there is heavy wear in air bleeding valve, causes the generation of gas-blowing phenomenon, and reliability is poor, cannot meet full phase in the longevity high load capacity service demand of high-power engine。Urgent needs carries out the laser surface hardening technology applied research of the exhaust valve sealing conical surface, to increase substantially the high temperature wear resistant performance of critical component, heat-resistant anti-fatigue performance and high-temperature corrosion resistance performance, thus improving service life and the reliability of electromotor。
At present, carried out lot of experiments for the air bleeding valve conical surface surface strengthening technology of high-power engine both at home and abroad, but the through engineering approaches applied research for this technology is less。This is mainly due to when carrying out laser surface hardening technology, fixing extremely difficult to air bleeding valve。If fixed loosely, laser beam can be irradiated to the position that need not strengthen, so that whole air bleeding valve is scrapped, causes very big economic loss。Therefore, urgently seek a kind of fixing device, air bleeding valve conical surface surface is carried out in the process of surface peening adopting laser quenching technology, air bleeding valve is made to be fixed on this device, and in company with this device synchronous axial system, and laser beam remains motionless, thus can avoid due to the fixing unnecessary loss loosely brought of air bleeding valve。
Summary of the invention
First to be solved by this invention technical problem is that providing the strengthening of a kind of simple in construction, easy to operate air bleeding valve surface laser to use for the above-mentioned state of the art fixes device, not only can realize fixedly securing air bleeding valve, and control accurately, to obtain and strengthen effect preferably。
Second to be solved by this invention technical problem is that the laser-quenching method providing the strengthening of a kind of above-mentioned air bleeding valve surface laser with fixing device for the above-mentioned state of the art, have easy to operate, control accurate feature, fixedly securing air bleeding valve can be realized, it is thus achieved that strengthen effect preferably。
This invention address that the technical scheme that above-mentioned first technical problem adopts is: the fixing device of a kind of air bleeding valve surface laser strengthening, including fixed mount, it is characterized in that: described fixed mount is provided with a mounting seat, mounting seat is fixed on fixed mount by governor motion and can do front and back certain angle oscillation adjustment, mounting seat is coaxially arranged with ejector pin component for fixing air bleeding valve from top to bottom, for the copper billet dispelled the heat, the motor of scroll chuck and vernier angle, scroll chuck and motor are separately positioned on the two ends up and down of mounting seat, ejector pin component is arranged on the top of scroll chuck by inverse-U-shape rack, the output shaft of motor is connected through the centre bore of mounting seat with the bottom of scroll chuck, copper billet is fixed on scroll chuck and can rotate with scroll chuck under the driving of motor, the conical surface end of air bleeding valve is arranged on copper billet, the stock end of air bleeding valve is fixed by ejector pin component。
As improvement, described fixed mount is a cross section is tetragonal metal framework, and mounting seat is the metal dish of a circle, and the external diameter of mounting seat is less than the framework internal diameter of fixed mount。
As improvement, described governor motion includes two, left and right and regulates axle and supporting bearing block, regulate axle and be horizontally installed on the two ends, left and right, lower section of mounting seat respectively, the outer end regulating axle is spindle rotationally arranged on fixed mount by bearing block and is fixed by semicircular bearing holder (housing, cover), and the bottom of the inner end and mounting seat that regulate axle is bolted fixing。
As improvement, the lower end of the left and right vertical rod of described inverse-U-shape rack and mounting seat are bolted to connection, the upper end of left and right vertical rod and cross bar are bolted to connection, described ejector pin component includes thimble and the metal canula planted for thimble, metal canula is disposed longitudinally in the middle part of cross bar, the circular cone that the spacing stock end being provided with air bleeding valve in the lower end of metal canula offsets, is provided with spring between thimble and circular cone。
Improving, described circular cone is block rubber again, is provided with the handle for regulating fixing air bleeding valve dynamics on the top of thimble。
Improve again, described copper billet is the circular block that longitudinal section is T-shaped, the lower end of copper billet is fixed on scroll chuck, and the upper surface middle part of copper billet is provided with mean for the detent that the conical surface end of air bleeding valve is inserted, and is provided with the projection corresponding with thimble position in the center of detent。
Improving, the rotational speed regulation of described motor ranges for 0～100r/min again。
Improving further, the pendulum angle range of accommodation of described mounting seat is ± 60 degree。
This invention address that the technical scheme that above-mentioned second technical problem adopts is: a kind of above-mentioned air bleeding valve surface laser strengthening laser-quenching method of fixing device, it is characterised in that comprise the following steps:
1) surface of the conical surface end of air bleeding valve to be fortified is carried out pretreatment；
2) above-mentioned pretreated air bleeding valve is put in heating furnace preheat so that it is temperature is to 190～210 DEG C；
3) heat transmission copper billet is fixed on scroll chuck, then the air bleeding valve after preheating is fixed on copper billet, withstands the stock end of air bleeding valve simultaneously by ejector pin component；
4) motor switch is connected so that it is drive scroll chuck, copper billet and air bleeding valve to rotate simultaneously, and adjust its rotating speed according to practical situation；
5) open laser, set each technological parameter, laser is irradiated in air bleeding valve position to be fortified, proceeds by strengthening；
6) observing laser irradiates whether there be " dead angle ", if having, adjusting the angle regulating axle；
7) after strengthening terminates, first turn off motor power, after it stops, taking off air bleeding valve；
8) air bleeding valve after strengthening is carried out air cooling to room temperature。
As preferably, the rotational speed regulation of described motor ranges for 0～100r/min, and the pendulum angle of described adjustment axle is ± 60 degree。
Compared with prior art, it is an advantage of the current invention that: arranging mounting seat on fixed mount, the parts such as motor, scroll chuck are all disposed within mounting seat, and copper billet is fixed on scroll chuck, play thermolysis, during work, the conical surface end of air bleeding valve is arranged on copper billet, and the stock valve end of air bleeding valve is fixed by thimble, mounting seat can swing by regulating axle and bearing, to adjust the air bleeding valve pendulum angle when laser quenching, it is ensured that laser beam can arrive any position, does not stay any dead angle；Motor rotation speed is adjustable, it is ensured that air bleeding valve is the change of rotating speed when carrying out laser quenching, it is ensured that the scanning speed of laser；It addition, with bolts between mounting seat, adjustment axle, fixed mount, dismounting is easily。Present configuration advantages of simple, easy to operate, not only can realize fixedly securing air bleeding valve, and use easy to adjust, control accurately, to obtain and strengthen effect preferably。
Accompanying drawing explanation
Fig. 1 is the structural representation of the fixing device of the present invention；
Fig. 2 is the structure sectional view of the fixing device of invention；
Fig. 3 is the structural representation of the air bleeding valve of the present invention。
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail。
Such as Fig. 1, 2, shown in 3, the air bleeding valve surface laser strengthening of the present embodiment is with fixing device, including fixed mount 1, mounting seat 2, ejector pin component 6, copper billet 5, the motor 3 of scroll chuck 4 and vernier angle, fixed mount 1 is a cross section is tetragonal metal framework, mounting seat 2 is the metal dish of a circle, the external diameter of mounting seat 2 is less than the framework internal diameter of fixed mount 1, in order to not only save cost but also take into account the consideration of weight, fixed mount 1 and mounting seat 2 adopt ordinary carbon steel to make, the two ends, left and right of mounting seat 2 be fixed on fixed mount 1 by governor motion and about governor motion under can do before and after ± oscillation adjustment of 60 degree, mounting seat 2 is coaxially arranged with ejector pin component 6 for fixing air bleeding valve 9 from top to bottom, for the copper billet 5 dispelled the heat, the motor 3 of scroll chuck 4 and vernier angle, scroll chuck 4 and motor 3 are separately positioned on the two ends up and down of mounting seat 2, ejector pin component 6 is arranged on the top of scroll chuck 4 by inverse-U-shape rack 10, the output shaft of motor 3 is connected through the centre bore of mounting seat 2 with the bottom of scroll chuck 4, motor 3 principal security air bleeding valve 9 change of rotating speed when carrying out laser quenching, its adjustable extent is 0～100r/min, this is conducive to regulating its rotating speed according to practical situation, ensure the scanning speed of laser；Copper billet 5 is fixed on scroll chuck 4 and can rotate with scroll chuck 4 under the driving of motor 3, the effect of scroll chuck 4 is fixing copper billet 5 mainly, it is made not have any rotation in the course of the work, for the overall weight of alleviator with reduce device and occupy space, the general scroll chuck selecting diameter less；Copper billet 5 is the circular block that longitudinal section is T-shaped, primarily serve the effect of heat radiation, owing to when laser quenching, the heat of air bleeding valve 9 is significantly high, in order to prevent its deformation produced owing to temperature is high, therefore itself and copper billet 5 are in close contact, the lower end of copper billet 5 is fixed on scroll chuck 4, the upper surface middle part of copper billet 5 is provided with mean for the detent 52 that the conical surface end 91 of air bleeding valve 9 is inserted, the projection 51 corresponding with thimble 6 position it is provided with in the center of detent 52, the conical surface end 91 of air bleeding valve 9 is arranged on copper billet 5, the stock valve end of air bleeding valve 9 is fixed by ejector pin component 6；The stock end of the effect of ejector pin component 6 mainly fixing air bleeding valve 9 will not transfer to wave due to high-speed rotary, wherein inverse-U-shape rack 10 is made up of cross bar 101 and left and right vertical rod 102, the lower end of left and right vertical rod 102 and mounting seat 2 are bolted to connection, the upper end of left and right vertical rod 102 and cross bar 101 are bolted to connection, ejector pin component 6 includes thimble 62, for the metal canula 61 that thimble 62 is planted, circular cone 63 and spring 64, metal canula 61 longitudinal measure is fixed in the middle part of cross bar 101, thimble 62 is set in the inner chamber of metal canula 61, the valve of the spacing inner chamber lower end and air bleeding valve 9 being arranged on metal canula 61 of circular cone 63 offsets, spring 64 it is provided with between thimble 62 and circular cone 63, circular cone 63 is block rubber, its purpose is to the stock end of protection air bleeding valve 9 and will not cause its defect due to the increase of external force, for convenient fixing air bleeding valve 9, in the upper end of thimble 62, handle 65 is installed, the dynamics of fixing air bleeding valve 9 is regulated by this handle 65；
Governor motion includes two, left and right and regulates axle 7 and the matched bearing block 8 of correspondence, regulate axle 7 and be horizontally installed on the two ends, left and right, lower section of mounting seat 2 respectively, the outer end regulating axle 7 is spindle rotationally arranged on fixed mount 1 by bearing block 8 and is fixed by semicircular bearing holder (housing, cover) 11, the bottom of the inner end and mounting seat 2 that regulate axle 7 is bolted fixing, so just can the pendulum angle of mounting seat 2 be adjusted by adjustment axle 7。
During work, the conical surface end 91 of air bleeding valve 9 is placed on the detent 52 of copper billet 5, simultaneously by the fixing other end withstanding air bleeding valve 9 by ejector pin component 6, thus air bleeding valve 9 is firmly fixed on fixed mount 1, connect motor 3, make it drive scroll chuck 4, heat transmission copper billet 5 and air bleeding valve 9 to rotate simultaneously, and adjust its rotating speed according to practical situation, it is ensured that the scanning speed of laser；Regulate the effect main adjustment air bleeding valve 9 pendulum angle when laser quenching of axle 7 and bearing, mounting seat 2 is driven to swing by regulating axle 7, so can ensure that laser beam can arrive any position on air bleeding valve 9, do not stay any " dead angle ", its pendulum angle is ± 60 degree, such air bleeding valve 9 is secured on fixing device, and with in company with this device synchronous axial system and swing, and laser beam remains motionless, can obtain and strengthen effect preferably, it is to avoid due to the fixing unnecessary loss loosely brought of air bleeding valve 9。
The concrete operation method that air bleeding valve in laser strengthening is fixed is as follows:
1) surface of the conical surface end 91 of air bleeding valve 9 to be fortified is carried out pretreatment；Refer mainly to acetone or gasoline his-and-hers watches
Face greasy dirt is cleared up；
2) above-mentioned pretreated air bleeding valve 9 is put in heating furnace preheat so that it is temperature is to 190～210 DEG C；
3) heat transmission copper billet 5 is fixed on scroll chuck 4, then the air bleeding valve 9 after preheating is fixed on copper billet 5, withstands the stock end of air bleeding valve 9 simultaneously by ejector pin component 6；
4) connect motor 3 to switch so that it is drive scroll chuck 4, copper billet 5 and air bleeding valve 9 to rotate simultaneously, and adjust its rotating speed according to practical situation；
5) open laser, set each technological parameter, laser is irradiated in air bleeding valve 9 position to be fortified, proceeds by strengthening；
6) observing laser irradiates whether there be " dead angle ", if having, adjusting the angle regulating axle 7；
7) after strengthening terminates, first turn off motor 3 power supply, after it stops, taking off air bleeding valve 9；
8) air bleeding valve 9 after strengthening is carried out air cooling to room temperature。
Claims (10)
1. an air bleeding valve surface laser strengthening is with fixing device, including fixed mount, it is characterized in that: described fixed mount is provided with a mounting seat, mounting seat is fixed on fixed mount by governor motion and can do front and back certain angle oscillation adjustment, mounting seat is coaxially arranged with ejector pin component for fixing air bleeding valve from top to bottom, for the copper billet dispelled the heat, the motor of scroll chuck and vernier angle, scroll chuck and motor are separately positioned on the two ends up and down of mounting seat, ejector pin component is arranged on the top of scroll chuck by inverse-U-shape rack, the output shaft of motor is connected through the centre bore of mounting seat with the bottom of scroll chuck, copper billet is fixed on scroll chuck and can rotate with scroll chuck under the driving of motor, the conical surface end of air bleeding valve is arranged on copper billet, the stock end of air bleeding valve is fixed by ejector pin component。
2. air bleeding valve surface laser according to claim 1 strengthening is with fixing device, it is characterised in that: described fixed mount is a cross section is tetragonal metal framework, and mounting seat is the metal dish of a circle, and the external diameter of mounting seat is less than the framework internal diameter of fixed mount。
3. air bleeding valve surface laser according to claim 1 strengthening is with fixing device, it is characterized in that: described governor motion includes two, left and right and regulates axle and supporting bearing block, regulate axle and be horizontally installed on the two ends, left and right, lower section of mounting seat respectively, the outer end regulating axle is spindle rotationally arranged on fixed mount by bearing block and is fixed by semicircular bearing holder (housing, cover), and the bottom of the inner end and mounting seat that regulate axle is bolted fixing。
4. air bleeding valve surface laser according to claim 1 strengthening is with fixing device, it is characterized in that: the lower end of the left and right vertical rod of described inverse-U-shape rack and mounting seat are bolted to connection, the upper end of left and right vertical rod and cross bar are bolted to connection, described ejector pin component includes thimble and the metal canula planted for thimble, metal canula is disposed longitudinally in the middle part of cross bar, the circular cone that the spacing stock end being provided with air bleeding valve in the lower end of metal canula offsets, is provided with spring between thimble and circular cone。
5. air bleeding valve surface laser according to claim 4 strengthening is with fixing device, it is characterised in that: described circular cone is block rubber, is provided with the handle for regulating fixing air bleeding valve dynamics on the top of thimble。
6. the air bleeding valve surface laser strengthening according to claim 1 to 5 any claim is with fixing device, it is characterized in that: described copper billet is the circular block that longitudinal section is T-shaped, the lower end of copper billet is fixed on scroll chuck, the upper surface middle part of copper billet is provided with mean for the detent that the conical surface end of air bleeding valve is inserted, and is provided with the projection corresponding with thimble position in the center of detent。
7. the air bleeding valve surface laser strengthening according to claim 1 to 5 any claim is with fixing device, it is characterised in that: the rotational speed regulation of described motor ranges for 0～100r/min。
8. the air bleeding valve surface laser strengthening according to claim 1 to 5 any claim is with fixing device, it is characterised in that: the pendulum angle range of accommodation of described mounting seat is ± 60 degree。
9. one kind utilizes any one described fixing device of claim 1 to 5 that air bleeding valve is carried out surface laser quenching method, it is characterised in that comprise the following steps:
1) surface of the conical surface end of air bleeding valve to be fortified is carried out pretreatment；
2) above-mentioned pretreated air bleeding valve is put in heating furnace preheat so that it is temperature is to 190～210 DEG C；
3) heat transmission copper billet is fixed on scroll chuck, then the air bleeding valve after preheating is fixed on copper billet, withstands the stock end of air bleeding valve simultaneously by ejector pin component；
4) motor switch is connected so that it is drive scroll chuck, copper billet and air bleeding valve to rotate simultaneously, and adjust its rotating speed according to practical situation；
5) open laser, set each technological parameter, laser is irradiated in air bleeding valve position to be fortified, proceeds by strengthening；
6) observing laser irradiates whether there be " dead angle ", if having, adjusting the angle regulating axle；
7) after strengthening terminates, first turn off motor power, after it stops, taking off air bleeding valve；
8) air bleeding valve after strengthening is carried out air cooling to room temperature。
10. method according to claim 9, it is characterised in that: the rotational speed regulation of described motor ranges for 0～100r/min, and the pendulum angle of described adjustment axle is ± 60 degree。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477862.3A CN104232852B (en) | 2014-09-18 | 2014-09-18 | A kind of strengthening of air bleeding valve surface laser fixing device and laser-quenching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477862.3A CN104232852B (en) | 2014-09-18 | 2014-09-18 | A kind of strengthening of air bleeding valve surface laser fixing device and laser-quenching method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104232852A CN104232852A (en) | 2014-12-24 |
| CN104232852B true CN104232852B (en) | 2016-06-22 |
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| CN201410477862.3A Expired - Fee Related CN104232852B (en) | 2014-09-18 | 2014-09-18 | A kind of strengthening of air bleeding valve surface laser fixing device and laser-quenching method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106995869B (en) * | 2017-05-16 | 2019-06-07 | 昆山鑫昌泰模具科技有限公司 | Dedicated feeding jig suitable for the workpiece with U-type groove structure |
| CN110205448B (en) * | 2019-07-09 | 2021-03-02 | 杭州御兴科技有限公司 | Laser strengthening method for electric power fitting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776349A (en) * | 2012-07-31 | 2012-11-14 | 重庆歇马机械曲轴有限公司 | Quenching device and quenching process of crankshaft connecting rod journal |
| CN203782194U (en) * | 2014-02-24 | 2014-08-20 | 大连理工大学 | Flame type surface quenching equipment for rotary workpieces |
| CN204174231U (en) * | 2014-09-18 | 2015-02-25 | 北方材料科学与工程研究院有限公司 | A kind of vent valve surface laser strengthening stationary installation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006063915A (en) * | 2004-08-27 | 2006-03-09 | Ntn Corp | Rocker arm structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776349A (en) * | 2012-07-31 | 2012-11-14 | 重庆歇马机械曲轴有限公司 | Quenching device and quenching process of crankshaft connecting rod journal |
| CN203782194U (en) * | 2014-02-24 | 2014-08-20 | 大连理工大学 | Flame type surface quenching equipment for rotary workpieces |
| CN204174231U (en) * | 2014-09-18 | 2015-02-25 | 北方材料科学与工程研究院有限公司 | A kind of vent valve surface laser strengthening stationary installation |
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