CN110977159A - Laser light path component for forming annular light spots - Google Patents
Laser light path component for forming annular light spots Download PDFInfo
- Publication number
- CN110977159A CN110977159A CN201910875279.0A CN201910875279A CN110977159A CN 110977159 A CN110977159 A CN 110977159A CN 201910875279 A CN201910875279 A CN 201910875279A CN 110977159 A CN110977159 A CN 110977159A
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- CN
- China
- Prior art keywords
- laser
- axis
- wedge
- optical path
- forming
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- 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.)
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Classifications
-
- 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
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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
- B23K26/02—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
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
-
- 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
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser light path component for forming an annular light spot, which comprises an axis, a laser generator for emitting laser along the axis, a deflection component for deflecting the laser, a guide device for guiding the deflected laser to be parallel to the axis, and a first rotating device for driving the deflection component to rotate along the axis.
Description
Technical Field
The invention relates to a laser light path component for forming an annular light spot.
Background
In the field of laser welding, in order to increase the temperature of a laser beam irradiation portion, the laser beam is generally concentrated in a very small range, resulting in a small diameter of the laser beam, generally around 0.2 MM. Since the diameter of the laser needs to cover the weld, the precision requirement for the weld is usually high, and if the gap between two workpieces exceeds 0.2MM, laser welding cannot be used.
Therefore, a laser welding apparatus suitable for welding a large-gap workpiece is required.
Disclosure of Invention
The invention aims to provide a laser light path component for forming an annular light spot.
In order to achieve the purpose, the invention adopts the technical scheme that: a laser optical path component for forming an annular light spot comprises an axis, a laser generator for emitting laser along the axis, a deflection component for deflecting the laser, a guide device for guiding the deflected laser to be parallel to the axis, and a first rotating device for driving the deflection component to rotate along the axis.
Preferably, the deflection assembly is at least one wedge mirror.
Further preferably, one face of the wedge-shaped mirror is arranged perpendicular to the axis.
Further preferably, the number of the wedge-shaped mirrors is two, a gap is formed between the two wedge-shaped mirrors, and the two wedge-shaped mirrors are arranged opposite to a plane perpendicular to the axis.
Further preferably, the device further comprises a second rotating device for driving one of the two wedge-shaped mirrors to rotate relative to the other wedge-shaped mirror along the axial direction, and a positioning device for positioning the two wedge-shaped mirrors relative to each other.
Preferably, the guiding device is a focusing lens, and an optical axis of the focusing lens and the axis are arranged to coincide with each other.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the laser penetrates through the deflection assembly, the angle is changed, the laser deviates from the axis, and the laser is emitted in a direction parallel to the axial direction after being regulated by the guide device, when the first rotating device drives the deflection assembly to rotate, the deflected laser deflects and rotates along with the first rotating device, the track of the emitted laser, which irradiates on a workpiece, is circular when the deflection assembly rotates for one circle, and circular light spots are formed when the rotation speed of the deflection assembly is fast enough.
Drawings
FIG. 1 is a schematic diagram of the optical path of the present invention.
In the above drawings: 1. an axis; 2. a wedge-shaped mirror; 3. a focusing lens; 4. and (4) laser.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which:
referring to fig. 1, a laser optical path assembly for forming an annular light spot includes an axis 1, a laser generator (not shown) for emitting laser light 4 along the axis 1, a deflection assembly for deflecting the laser light 4, a guide device for guiding the deflected laser light 4 to be parallel to the axis 1, and a first rotating device for driving the deflection assembly to rotate along the axis 1.
Laser 4 passes the subassembly that deflects the back angle and changes, and the skew axis 1, rethread guider adjusts the back and is on a parallel with the axial direction and jets out, when first rotating device drive deflection subassembly rotates, and the laser 4 that deflects rotates along with it, and the orbit that the laser 4 that jets out shines on the work piece when the subassembly that deflects rotates a week is the ring shape, forms the annular facula when the subassembly rotational speed that deflects is fast enough.
The circular light spot far exceeds the diameter of the original 4 laser beams, so that the welding range of the laser 4 is expanded, the laser 4 can weld a larger gap, and the requirement of the laser 4 on the gap butt joint precision is reduced.
The deflection assembly is in this embodiment two wedge mirrors 2. Each wedge-shaped mirror 2 is provided with a surface which is perpendicular to the axis 1, a gap is arranged between the two wedge-shaped mirrors 2, and the two wedge-shaped mirrors 2 are arranged opposite to the surface which is perpendicular to the axis 1.
The embodiment further comprises second rotating means (not shown) for driving one of said two wedge mirrors 2 in rotation with respect to the other in said axial direction, and positioning means (not shown) for positioning said two wedge mirrors 2 with respect to each other. The deflection amount of the laser 4 after passing through can be adjusted through the relative rotation of the two wedge-shaped mirrors 2, so that the diameter adjustment of the annular light spot is realized.
In this embodiment, the guiding device is a focusing lens 3, and an optical axis of the focusing lens 3 and the axis 1 are overlapped with each other.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. A laser optical path assembly for forming an annular spot, comprising an axis, a laser generator for emitting laser light along said axis, wherein: the laser beam deflection device further comprises a deflection assembly for deflecting the laser beam, a guide device for guiding the deflected laser beam to be parallel to the axis, and a first rotating device for driving the deflection assembly to rotate along the axis.
2. The laser optical path assembly of claim 1, wherein: the deflection assembly is at least one wedge mirror.
3. The laser optical path assembly for forming an annular light spot according to claim 2, wherein: one face of the wedge-shaped mirror is arranged perpendicular to the axis.
4. The laser optical path assembly for forming an annular light spot according to claim 3, wherein: the number of the wedge-shaped mirrors is two, a gap is formed between the two wedge-shaped mirrors, and the two wedge-shaped mirrors are arranged opposite to the surface vertical to the axis.
5. The laser optical path assembly for forming an annular light spot according to claim 4, wherein: the device also comprises a second rotating device which drives one of the two wedge-shaped mirrors to rotate relative to the other wedge-shaped mirror along the axial direction, and a positioning device which positions the two wedge-shaped mirrors to each other.
6. The laser optical path assembly of claim 1, wherein: the guiding device is a focusing lens, and the optical axis of the focusing lens and the axis are overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875279.0A CN110977159A (en) | 2019-09-17 | 2019-09-17 | Laser light path component for forming annular light spots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875279.0A CN110977159A (en) | 2019-09-17 | 2019-09-17 | Laser light path component for forming annular light spots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110977159A true CN110977159A (en) | 2020-04-10 |
Family
ID=70081749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910875279.0A Pending CN110977159A (en) | 2019-09-17 | 2019-09-17 | Laser light path component for forming annular light spots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110977159A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111752001A (en) * | 2020-07-15 | 2020-10-09 | 武汉市威佳激光有限责任公司 | Dynamic adjustable annular light beam conversion device based on acousto-optic deflection technology |
| CN113231739A (en) * | 2021-07-13 | 2021-08-10 | 岗春激光科技（江苏）有限公司 | Lens assembly and laser welding head |
| CN113649690A (en) * | 2020-05-12 | 2021-11-16 | 深圳市联赢激光股份有限公司 | Optical system with circular and annular light spot cutting function |
-
2019
- 2019-09-17 CN CN201910875279.0A patent/CN110977159A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649690A (en) * | 2020-05-12 | 2021-11-16 | 深圳市联赢激光股份有限公司 | Optical system with circular and annular light spot cutting function |
| CN111752001A (en) * | 2020-07-15 | 2020-10-09 | 武汉市威佳激光有限责任公司 | Dynamic adjustable annular light beam conversion device based on acousto-optic deflection technology |
| CN111752001B (en) * | 2020-07-15 | 2022-07-29 | 武汉市威佳激光有限责任公司 | Dynamic adjustable annular light beam conversion device based on acousto-optic deflection technology |
| CN113231739A (en) * | 2021-07-13 | 2021-08-10 | 岗春激光科技（江苏）有限公司 | Lens assembly and laser welding head |
| CN113231739B (en) * | 2021-07-13 | 2021-09-28 | 岗春激光科技（江苏）有限公司 | Lens assembly and laser welding head |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 1, Jiama Road, Luzhi Town, Wuzhong District, Suzhou City, Jiangsu Province, 215000 Applicant after: Suzhou Kemeite Equipment Integration Co.,Ltd. Address before: 215000 Dong Zhuang Road, Luzhi Town, Wuzhong District, Suzhou, Jiangsu Applicant before: SUZHOU KEYMATE EQUIPMENT INTEGRATION CO.,LTD. |
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| CB02 | Change of applicant information |