CN209986397U - Continuous laser and ultrasonic composite surface micromachining system - Google Patents
Continuous laser and ultrasonic composite surface micromachining system Download PDFInfo
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- CN209986397U CN209986397U CN201920752523.XU CN201920752523U CN209986397U CN 209986397 U CN209986397 U CN 209986397U CN 201920752523 U CN201920752523 U CN 201920752523U CN 209986397 U CN209986397 U CN 209986397U
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Abstract
The utility model discloses a continuous laser and ultrasonic composite surface micromachining system, which comprises a lens focusing the laser beam of a continuous laser on a target, a laser action time adjusting device and a target up-down amplitude adjusting device, wherein the target up-down amplitude adjusting device comprises an ultrasonic amplitude transformer controlled by an ultrasonic generator, the amplitude transformer is installed on a CNC (computer numerical control) platform through a fixed clamp, and the target is installed on the amplitude transformer; the laser action time adjusting device comprises a light blocking rotary table with a speed regulator for controlling the rotating speed, light transmission openings for adjusting the laser passing ratio are uniformly distributed on the circumference of the light blocking rotary table, and the position of the light blocking rotary table between the lens and the target material is adjusted by a lifting mechanism and a left-right moving mechanism. The utility model discloses utilize the laser to fuse the quenching principle and improve the surface property on target surface, fix the target on the ultrasonic wave amplitude transformer for the convection heat transfer on target surface strengthens the cooling effect, throws out the effect of slag, homogenization processing region and refining the crystalline grain.
Description
Technical Field
The utility model relates to a laser beam machining technique specifically is a compound surface micromachining system of continuous laser and supersound.
Background
Continuous laser is usually used for completing the work of laser cutting, laser welding, laser cladding and the like due to the characteristic of continuous and stable laser energy output, has higher processing efficiency than pulse laser, but continuous punching (such as regular array pits) and surface treatment (such as groove textures) are relatively difficult to carry out by utilizing the continuous laser because the continuous laser is not beneficial to continuous punching operation, and meanwhile, the action of the continuous laser influences the processing dimensional precision and the substrate tissue because of excessive heat input.
The laser fusion hardening technology is a technological process that the surface of a base material is heated to be higher than the melting temperature by utilizing a laser beam, the surface of a melting layer is rapidly cooled due to the heat conduction cooling in the base material, and the melting quenching structure is obtained to be very dense. The technology can not only improve the defects of original air holes, cracks, impurities and the like on the surface of the workpiece, but also improve the performances of surface hardness and the like. The laser surface texture technology is characterized in that a laser rapid melting effect is utilized to process micro-features with certain shapes and distribution on the surface of a workpiece, the technology is high in processing speed, free of pollution to the environment and good in shape and size controllability, the technology is mainly applied to optimizing the surface tribology characteristics, improving the performance and service life of parts, the laser texture is often processed by adopting pulse laser, and certain unevenness exists in a processing area in the processing process mainly due to the accumulation of some molten slag.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a continuous laser and compound surface micro-processing system of supersound that optimizes the surface tribology characteristic, improves spare part performance and labour life-span.
The continuous laser and ultrasonic composite surface micromachining system capable of solving the technical problems comprises a lens for downwardly focusing a laser beam emitted by a continuous laser on a target, and is characterized by further comprising a laser action time adjusting device and a target up-down amplitude adjusting device, wherein:
1. the target material vertical amplitude adjusting device comprises an ultrasonic amplitude transformer controlled by an ultrasonic generator, the ultrasonic amplitude transformer is installed on the CNC numerical control platform through a fixing clamp, and the target material is installed on the ultrasonic amplitude transformer.
2. The laser action time adjusting device comprises a light blocking rotary table with the rotating speed controlled by a speed regulator, light transmitting openings for adjusting the laser passing ratio are uniformly distributed on the circumference of the light blocking rotary table, and the position of the light blocking rotary table between the lens and the target is adjusted by a lifting mechanism and a left-right moving mechanism.
The light-transmitting opening is preferably a fan-shaped opening.
The light-tight part of the light-blocking turntable is provided with a mirror coating made of high-reflectivity materials so as to prevent the turntable body from being damaged by laser firing.
Conventionally, the lifting mechanism and the left-right moving mechanism are ball screw nut transmission mechanisms.
The utility model has the advantages that:
1. the utility model discloses compound surface micromachining system of continuous laser and supersound adopts the combination of laser melting quenching principle and ultrasonic vibration effect, utilizes the laser melting quenching principle to improve the surface performance on target surface on the one hand, and on the other hand fixes the target on the supersound amplitude transformer of vibration from top to bottom, and ultrasonic vibration accelerates the heat convection on target surface, reinforcing cooling effect, and ultrasonic vibration plays the effect of throwing out slag, homogenization processing area territory and refining the crystalline grain simultaneously.
2. The utility model discloses utilize continuous laser to combine the carousel to rotate control laser heating and cooling time, combine the effect of laser melting quenching principle and ultrasonic vibration simultaneously, process out the microcosmic appearance (hole shape, rectangle, flute profile etc.) of certain shape and distribution on the target surface, change the tribology characteristic on target surface, improve surface properties.
3. The utility model provides a new processing mode for continuous laser and increases the usage; by utilizing the laser melting quenching principle and the ultrasonic vibration effect, the defects of original air holes, cracks, impurities and the like on the surface of a workpiece are improved, the surface hardness and the wear resistance of the target are improved, the surface structures with specific hole distribution and groove distribution are processed, and the effect of laser texture is achieved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a perspective view of the light blocking rotary table in the embodiment of fig. 1.
And (3) identifying the figure number: 1. a laser beam; 2. a target material; 3. a lens; 4. an ultrasonic horn; 5. fixing the clamp; 6. a CNC numerical control platform; 7. an ultrasonic generator; 8. a speed regulator; 9. a light blocking turntable; 10. a lifting mechanism; 11. a left-right moving mechanism; 12. a light-transmitting opening; 13. a protection box.
Detailed Description
The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.
The utility model discloses compound surface micromachining system of continuous laser and supersound, including continuous laser (laser power density selects to be 105W/cm2～108W/cm2) The device comprises a laser action time adjusting device and a target material vertical amplitude adjusting device.
The laser emission pipe orifice of the continuous laser is provided with a lens 3, and the lens 3 focuses the laser beam 1 emitted by the continuous laser downwards after passing through the emission pipe orifice, as shown in fig. 1.
The target material vertical amplitude adjusting device is arranged below the lens 3 of the laser emission pipe opening and comprises an ultrasonic amplitude transformer 4 (with the frequency of 25 kHz-40 kHz and the amplitude of 2μm-10μm) which is controlled by an ultrasonic generator 7 to generate vertical vibration, the ultrasonic amplitude transformer 4 is arranged on a fixing clamp 5, the fixing clamp 5 is arranged on a CNC (computerized numerical control) platform 6, and the target material 2 is clamped on the ultrasonic amplitude transformer 4, as shown in figure 1.
The laser action time adjusting device is arranged between the lens 3 and the target material 2 and comprises a light blocking rotary table 9 which is arranged in a protective box 13 (an upper opening and a lower opening) and the rotating speed of which is controlled by a speed regulator 8, light transmission openings 12 (preferably fan-shaped openings) for adjusting the laser passing ratio are uniformly distributed on the circumference of the light blocking rotary table 9, the protective box 13 can be adjusted in the upper and lower positions through an elevating mechanism 10 and in the front, rear, left and right positions through a left and right moving mechanism 11, and the elevating mechanism 10 and the left and right moving mechanism 11 both adopt high-precision ball screw nut transmission mechanisms, as shown in figure 1.
As shown in fig. 2, the light blocking turntable 9 is a structural form of the light blocking turntable 9, the light blocking turntable 9 is provided with two fan-shaped light transmission openings 12 which are symmetrical up and down, the fan-shaped angle of each light transmission opening 12 is between 90 ° and 180 °, and the light blocking surface of the light blocking turntable 9 except for the two fan-shaped light transmission openings 12 is provided with a coating made of a high-reflectivity material (Cu, Mo, Au, etc.), and the coating is processed into a high-reflectivity mirror surface, so as to prevent the light blocking surface of the light blocking turntable 9 from being burned by laser.
The light blocking turntable 9 rotates at different rotating speeds, the time for the laser beam 1 to reach the surface of the target 2 through the light blocking turntable 9 to be processed is adjusted, the laser beam 1 irradiates the light-tight part of the light blocking turntable 9 to generate the processing intermittent time, and the laser heat transfer and cooling time is adjusted through the intermittent laser action, so that the substrate on the surface of the target 2 is prevented from being damaged by excessive energy accumulation.
The calculation formula of the laser intermittent cooling time is
Wherein theta is the angle of each light blocking part, n is the rotating speed, the unit r/min, and the rotating speed is selected to be 60 r/min-220000 r/min; the moving distance s of the target 2 in the intermittent time is vt, where v is a feed speed, and the feed speed v is selected to be 1mm/s to 100 mm/s.
The utility model discloses the mode step of operation does:
1. firstly, the ultrasonic amplitude transformer 4 is fixedly arranged on a fixing clamp 5 of a CNC (computerized numerical control) platform 6, then the target 2 is clamped on the ultrasonic amplitude transformer 4, and the CNC platform 7 is operated to transfer the target 2 to the focus (focal length) of the lens 3.
2. And opening the continuous laser, and adjusting the light blocking turntable 9 at a proper position between the lens 3 and the target 2 through the lifting mechanism 10 and the left-right moving mechanism 11, so that the focused laser beam 1 can irradiate onto the surface of the target 2 through the light transmitting opening 12 of the light blocking turntable 9.
3. Adjusting the laser beam 1 to the required power, starting the speed regulator 9 to adjust the rotating speed of the light blocking turntable 9, starting the ultrasonic generator 7 to adjust the up-and-down vibration of the ultrasonic amplitude transformer 4, and operating the CNC numerical control platform 6 (controlling the feeding speed and direction) according to a preset program to process the surface of the target 2 by laser.
4. And after the laser finishes processing the surface of the target 2, closing the continuous laser, closing the speed regulator 9 and the ultrasonic generator 7, stopping the operation of the CNC numerical control platform 6, taking down the target 2 from the ultrasonic amplitude transformer 4, and performing subsequent processing and observation.
Claims (4)
1. Continuous laser and compound surface micromachining system of supersound, include with laser beam (1) focus down lens (3) on target (2) that continuous laser instrument sent, characterized by still include laser action time adjusting device and target amplitude adjusting device from top to bottom, wherein:
the target material vertical amplitude adjusting device comprises an ultrasonic amplitude transformer (4) controlled by an ultrasonic generator (7), the ultrasonic amplitude transformer (4) is installed on a CNC (computerized numerical control) platform (6) through a fixing clamp (5), and the target material (2) is installed on the ultrasonic amplitude transformer (4);
the laser action time adjusting device comprises a light blocking rotary table (9) with the rotating speed controlled by a speed regulator (8), light transmission openings (12) for adjusting the laser passing ratio are uniformly distributed on the circumference of the light blocking rotary table (9), and the position of the light blocking rotary table (9) between the lens (3) and the target material (2) is adjusted by a lifting mechanism (10) and a left-right moving mechanism (11).
2. The continuous laser and ultrasonic composite surface micromachining system according to claim 1, characterized in that: the light-transmitting opening (12) is a fan-shaped opening.
3. The continuous laser and ultrasonic composite surface micromachining system according to claim 1, characterized in that: the light-tight part of the light-blocking turntable (9) is provided with a mirror coating made of high-reflectivity materials.
4. The continuous laser and ultrasonic composite surface micromachining system according to any one of claims 1 to 3, characterized in that: the lifting mechanism (10) and the left-right moving mechanism (11) are ball screw nut transmission mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920752523.XU CN209986397U (en) | 2019-05-23 | 2019-05-23 | Continuous laser and ultrasonic composite surface micromachining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920752523.XU CN209986397U (en) | 2019-05-23 | 2019-05-23 | Continuous laser and ultrasonic composite surface micromachining system |
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| Publication Number | Publication Date |
|---|---|
| CN209986397U true CN209986397U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920752523.XU Expired - Fee Related CN209986397U (en) | 2019-05-23 | 2019-05-23 | Continuous laser and ultrasonic composite surface micromachining system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052703A (en) * | 2019-05-23 | 2019-07-26 | 桂林电子科技大学 | Continuous laser and ULTRASONIC COMPLEX surface micro-fabrication system and method |
-
2019
- 2019-05-23 CN CN201920752523.XU patent/CN209986397U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052703A (en) * | 2019-05-23 | 2019-07-26 | 桂林电子科技大学 | Continuous laser and ULTRASONIC COMPLEX surface micro-fabrication system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200124 Termination date: 20210523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |