CN108672931B - Ear nail welding device - Google Patents
Ear nail welding device Download PDFInfo
- Publication number
- CN108672931B CN108672931B CN201810791961.7A CN201810791961A CN108672931B CN 108672931 B CN108672931 B CN 108672931B CN 201810791961 A CN201810791961 A CN 201810791961A CN 108672931 B CN108672931 B CN 108672931B
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- Prior art keywords
- welding
- laser
- ear
- quasi
- continuous fiber
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention provides an ear stud welding device, the device comprising: welding platform, laser welding head and quasi-continuous fiber laser, be equipped with the fixed bolster on the welding platform, quasi-continuous fiber laser installs on the fixed bolster, is equipped with the regulation pole on the fixed bolster, and laser welding head installs on the regulation pole, and laser welding head's one end is equipped with the laser interface, and quasi-continuous fiber laser's transmission fiber inserts the laser interface, and laser welding head's the other end is equipped with out the light hole, and laser welding head's side is equipped with CCD positioning camera and CCD display. According to the ear nail welding device, the ear nail is welded by using the welding head with the quasi-continuous fiber laser, so that the welding spots are small and the welding strength is high; meanwhile, a CCD positioning camera is adopted to accurately position the welding position, so that the welding consistency is ensured, and the welding precision is improved; and a plurality of welding laser heads are arranged for simultaneous welding, so that the acting force of each welding spot is balanced, and the welding deformation is small.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to an ear nail welding device.
Background
In recent years, laser welding has been rapidly developed in the industry of ornaments. In the processing process of the ear nail, the ear needle and the ear back are matched and welded together, and the requirements of beautiful welding line, small processing size, high assembly precision, high welding strength, no deformation after welding and the like are met after welding. Specifically, the assembly clearance between the ear needle and the ear back is required to be smaller than 0.1mm, the diameter of the welding spot is smaller than 0.8mm, the welding spot is free from oxidation color, and the welding part can bear 90-degree bending of the ear needle, so that the requirement of ear nail welding on a welding device is high.
At present, the earneedle welding device on the market mainly adopts a YAG laser as a laser source, so that the basic requirement of welding can be met, but the whole device has poor welding precision and large welding deformation, the YAG laser needs to frequently replace optical fittings, the power consumption is high, and the production efficiency is low.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to overcome the defects in the prior art and provides an ear nail welding device which aims to solve the problems of large welding deformation and poor welding precision in the existing ear nail welding process.
(II) technical scheme
In order to solve the above technical problems, the present invention provides an ear nail welding device, comprising: welding platform, laser welding head and quasi-continuous fiber laser, be equipped with the fixed bolster on the welding platform, quasi-continuous fiber laser installs on the fixed bolster, be equipped with the regulation pole on the fixed bolster, the laser welding head is installed on the regulation pole, the one end of laser welding head is equipped with the laser interface, the transmission optic fibre of quasi-continuous fiber laser inserts the laser interface, the other end of laser welding head is equipped with the light-emitting hole, the side of laser welding head be equipped with CCD positioning camera and with CCD display that CCD positioning camera links to each other, adjust the regulation pole makes the light-emitting hole is used for aiming at the welding position of auricular needle and auricular back.
Preferably, a plurality of fixing brackets are arranged on the welding platform, each fixing bracket is provided with a laser welding head, the laser welding heads are uniformly distributed around the welding positions of the earpins and the earbacks, and the laser welding heads emit light simultaneously during welding.
Preferably, the plurality of laser welding heads simultaneously emit light to weld the auricular needle and the auricle.
Preferably, the included angle between the central axis of the light outlet hole and the earpin to be welded is 30-70 degrees.
Preferably, the welding position of the earneedle and the earback is positioned at the positive defocus position of the laser welding head, and the defocus amount is 5-10 mm.
Preferably, the average power of the quasi-continuous fiber laser is 50-150W, the peak power is 500-1500W, the working frequency is 1-20 HZ, and the pulse width is 8-12 ms.
Preferably, the fixing support is further provided with a protection air pipe, an outlet of the protection air pipe is aligned to a welding position of the ear needle and the back of the ear, an included angle between the protection air pipe and the ear needle is 0-30 degrees, and the pressure of protective gas introduced into the protection air pipe is 0.2-0.5 MPa.
(III) beneficial effects
The ear nail welding device provided by the invention has the advantages that the ear nail is welded by using the welding head with the quasi-continuous fiber laser, the welding spots are small, and the welding strength is high; meanwhile, the welding position is accurately positioned by adopting the CCD positioning camera, so that the welding consistency is ensured, and the welding precision is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an ear stud welding apparatus according to an embodiment of the present invention;
reference numerals:
1-a welding platform; 2-a laser welding head; a 3-quasi-continuous fiber laser;
4-fixing a bracket; 5-adjusting the rod; a 6-laser interface;
7-transmission optical fiber; 8-a light outlet hole; 9-CCD positioning camera;
a 10-CCD display; 11-ear needle; 12-behind the ear;
13-protect the trachea.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, an ear stud welding device, comprising: the welding platform 1, the laser welding head 2 and the quasi-continuous fiber laser 3, the welding platform 1 is square or round metal flat plate, the welding platform 1 is provided with a fixed support 4, the quasi-continuous fiber laser 3 can be arranged at the top of the fixed support 4, the fixed support 4 is provided with an adjusting rod 5, the laser welding head 2 is arranged on the adjusting rod 5, the adjusting rod 5 is provided with a clamp for fixing the laser welding head 2, and the adjusting rod 5 can be freely adjusted along a fixed rod similar to a desk lamp.
One end of the laser welding head 2 is provided with a laser interface 6, the quasi-continuous fiber laser 3 comprises a transmission fiber 7, the transmission fiber 7 is inserted into the laser interface 6 to provide a laser source for the laser welding head 2, the other end of the laser welding head 2 is provided with a light outlet 8, the light outlet 8 is aligned with the welding position of an ear needle 11 to be welded and an ear back 12 during welding, and the included angle between the central axis of the light outlet 8 and the ear needle 11 to be welded is generally 30-70 degrees.
The side of the laser welding head is provided with a CCD positioning camera 9 and a CCD display 10 connected with the CCD positioning camera 9, and the CCD positioning camera 9 and the CCD display 10 can be used for positioning the welding spot position of the laser welding head with the CCD positioning camera 9 and the CCD display 10, so that the welding consistency of the earneedle is good and the welding precision is high.
The quasi-continuous fiber laser 3 in the above embodiment adopts a quasi-continuous fiber laser, and the quasi-continuous fiber laser has the characteristics of high photoelectric conversion efficiency, no water cooling, small volume, easy integration and the like, and is widely applied to the cutting and welding fields. The quasi-continuous fiber laser has large welding pulse width, high peak power and small welding deformation. The average power of the quasi-continuous fiber laser in this embodiment is 50-150W, the peak power is 500-1500W, the working frequency is 1-20 HZ, and the pulse width is 8-12 ms.
On the basis of the embodiment, the fixed support 4 is further provided with the protection air pipe 13, the protection air pipe 13 can be connected with the fixed support 4 through a movable adjusting rod, one end of the movable adjusting rod is fixed on the fixed support 4, the movable adjusting rod is located above the adjusting rod 5 and used for adjusting and enabling the outlet of the protection air pipe 13 to cover a welding area, the outlet of the protection air pipe 13 is aligned with the welding position of the ear needle 11 and the ear back 12, the included angle between the protection air pipe and the ear needle is generally 0-30 degrees, the air pressure of the protection air introduced into the protection air pipe 13 is generally 0.2-0.5 Mpa, and the protection air starts to blow up generally 0.2-0.5 s before laser welding.
In the specific welding process, the CCD positioning camera 9 is firstly required to calibrate the welding point of the laser welding head 2 for light emission so as to ensure the welding precision. In specific operation, the focal point of the laser welding head 2 emits light forms an obvious welding spot on the welding platform 1, the CCD display 10 is observed, and the adjusting rod 5 is adjusted to enable the welding spot to be positioned on the cross intersection of the marking line of the CCD display 10; then the adjusting rod 5 is rotated to enable the cross crossing point of the marking line of the CCD display 10 to be positioned at the welding position of the ear needle 11 to be welded and the ear back 12, wherein the welding position is the position where the ear needle 11 is matched and contacted with the upper surface of the ear cap 12, so that the laser emitted by the light emitting hole 8 of the laser welding head 2 can be accurately beaten at the welding position. Then, the angle between the protective gas pipe 13 and the ear needle 11 is adjusted so that the protective gas covers the welding area, and the protective gas pipe 13 starts ventilation. Finally, the laser welding head 2 welds the positioned ear needle 11 and the earcap 12, and the ear needle 11 and the earcap 12 form a complete ear nail.
In the above welding process, in order to ensure a better welding effect and improve welding quality, when the position of the laser welding head 2 is adjusted, the welding position of the ear needle 11 and the ear cap 12 is located at the positive defocus position of the laser welding head 2, and the positive defocus is the process of processing the ear needle under the laser focus, otherwise, the positive defocus is the negative defocus. The defocus amount is the distance between the laser focus and the welding position, and has a great influence on welding quality in the welding process. Laser welding generally requires a certain amount of defocus because the power density at the center of the spot at the laser focus is too high, holes are easily evaporated, and the power density distribution is relatively uniform across the planes away from the laser focus. The defocusing amount is controlled between 5mm and 10mm during the welding of the ear nails so as to ensure the optimal welding effect.
On the basis of the above embodiments, in order to reduce the welding deformation, a plurality of fixing brackets 4 are provided on the welding platform, each fixing bracket 4 is fixedly provided with a laser welding head 2, the quasi-continuous fiber lasers 1 for providing laser sources for the laser welding heads 2 are respectively fixed on the corresponding fixing brackets 4, the plurality of laser welding heads 2 are uniformly distributed around the welding positions of the earpins 11 and the earrings 12, and the plurality of laser welding heads simultaneously emit light to weld the welding positions during welding.
In the above embodiments, specific parameters at the time of welding are as follows: the quasi-continuous fiber laser is a quasi-continuous fiber laser with average power of 75W, peak power of 750W, frequency of 10HZ and pulse width of 8ms; the number of the welding heads is equal to 2, the welding heads are symmetrically distributed on two sides of the earpin and emit light at the same time, and the included angle between the central axis of each welding head and the earpin is 60 degrees; the welding position of the ear needle 11 and the ear cap 12 is at the defocusing position of the laser, and the defocusing amount is 5mm; the included angle between the protective air pipe and the ear needle is 10 degrees, the protective air pipe begins to blow air at 0.35S before laser light is emitted, and the air pressure is 0.3MPa.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. An ear stud welding apparatus, comprising: the welding platform is provided with a fixed support, the quasi-continuous fiber laser is arranged on the fixed support, an adjusting rod is arranged on the fixed support, the laser welding head is arranged on the adjusting rod, one end of the laser welding head is provided with a laser interface, a transmission fiber of the quasi-continuous fiber laser is inserted into the laser interface, the other end of the laser welding head is provided with a light outlet, the side edge of the laser welding head is provided with a CCD positioning camera and a CCD display connected with the CCD positioning camera, and the adjusting rod is adjusted to enable the light outlet to be aligned with the welding position of an ear needle and the back of the ear, so that the cross intersection point of a marking line of the CCD display is positioned at the welding position of the ear needle to be welded and the back of the ear;
the welding position of the earpin and the eardrum is positioned at the positive defocusing position of the laser welding head, and the defocusing amount is 5-10 mm; the included angle between the central axis of the light outlet hole and the ear needle to be welded is 30-70 degrees.
2. The ear nail welding device according to claim 1, wherein a plurality of fixing brackets are arranged on the welding platform, the laser welding heads are arranged on each fixing bracket, the laser welding heads are uniformly distributed around the welding positions of the ear needle and the back of the ear, and the laser welding heads emit light simultaneously during welding.
3. The ear stud welding apparatus of claim 2 wherein a plurality of said laser welding heads simultaneously emit light to weld said ear pin to the back of the ear.
4. The ear nail welding apparatus according to claim 1, wherein the quasi-continuous fiber laser has an average power of 50-150W, a peak power of 500-1500W, an operating frequency of 1-20 HZ, and a pulse width of 8-12 ms.
5. The ear nail welding device according to claim 1, wherein a protective air pipe is further arranged on the fixing support, an outlet of the protective air pipe is aligned with a welding position of the ear needle and the back of the ear, an included angle between the protective air pipe and the ear needle is 0-30 degrees, and air pressure of protective air introduced into the protective air pipe is 0.2-0.5 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791961.7A CN108672931B (en) | 2018-07-18 | 2018-07-18 | Ear nail welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791961.7A CN108672931B (en) | 2018-07-18 | 2018-07-18 | Ear nail welding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108672931A CN108672931A (en) | 2018-10-19 |
| CN108672931B true CN108672931B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810791961.7A Active CN108672931B (en) | 2018-07-18 | 2018-07-18 | Ear nail welding device |
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| CN114309939B (en) * | 2022-01-07 | 2024-05-03 | 武汉锐科光纤激光技术股份有限公司 | Laser welding method and laser welding equipment for copper-based sheet material belt |
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| CN108672931A (en) | 2018-10-19 |
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