CN110977151A - Light spot diameter adjusting assembly of annular laser device - Google Patents
Light spot diameter adjusting assembly of annular laser device Download PDFInfo
- Publication number
- CN110977151A CN110977151A CN201910875278.6A CN201910875278A CN110977151A CN 110977151 A CN110977151 A CN 110977151A CN 201910875278 A CN201910875278 A CN 201910875278A CN 110977151 A CN110977151 A CN 110977151A
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- CN
- China
- Prior art keywords
- fixing seat
- fixing
- wedge
- mirror
- laser device
- Prior art date
- 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.)
- Pending
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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
- B23K26/02—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
-
- 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
- B23K26/073—Shaping the laser spot
-
- 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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- 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 light spot diameter adjusting assembly of an annular laser device, which comprises a first fixed seat for fixing a first wedge-shaped mirror, a second fixed seat for fixing the first wedge-shaped mirror and a locking piece for locking or unlocking the first fixed seat and the first fixed seat mutually, wherein the first fixed seat is rotatably arranged on the second fixed seat along an axis.
Description
Technical Field
The invention relates to the field of laser welding, in particular to a light spot diameter adjusting assembly of an annular laser device.
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, there is a need for an adjustment device capable of adjusting the laser welding diameter.
Disclosure of Invention
The invention aims to provide an adjusting device capable of adjusting the diameter of a ring laser according to the size of a workpiece gap.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an annular laser device's facula diameter adjustment assembly, annular laser device includes the axis, along the laser generator of axis transmission laser, along axis pivoted rotating bracket, set up one side on the rotating bracket is perpendicular the first wedge mirror that the axis set up, set up one side on the rotating bracket is perpendicular the second wedge mirror that the axis set up with will first wedge mirror the laser direction after the second wedge mirror deflects to being parallel the guider of axis, adjustment assembly is including fixing first fixing base, the fixing of first wedge mirror the second fixing base of first wedge mirror with be used for with first fixing base with the locking piece of first fixing base mutual locking or unblock, first fixing base along the axis rotates the setting on the second fixing base.
Preferably, the first fixing seat and the second fixing seat are both cylindrical, the axial lines of the first fixing seat and the second fixing seat are coincident with the axial direction, and the second fixing seat is sleeved on the outer side of the first fixing seat.
Further preferably, the second fixing seat is provided with arc-shaped holes distributed along the circumferential direction of the second fixing seat.
Further preferably, the part of the periphery of the first fixed seat, which is exposed out of the arc-shaped hole, is provided with adjusting teeth.
Preferably, the second fixing seat is provided with a fixing part for fixing the guide device.
Preferably, the second fixing seat is provided with a fixing ring and a retainer ring for fixing the second wedge-shaped mirror.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the invention, the deflection direction of the laser passing through the first wedge-shaped mirror and the second wedge-shaped mirror is adjusted through the relative rotation of the first wedge-shaped mirror and the second wedge-shaped mirror, so that the diameter of an annular light spot generated when the rotating support rotates is changed.
Drawings
FIG. 1 is a perspective view of an embodiment;
FIG. 2 is a schematic front view of the embodiment;
FIG. 3 is a schematic cross-sectional view of an embodiment;
FIG. 4 is a perspective view of the rotating bracket;
FIG. 5 is a schematic cross-sectional view of a rotating bracket.
In the above drawings: 1. a housing; 11. 12, an upper shell, a middle shell; 13. a lower housing; 2. a lead-in device; 3. a converter; 31. rotating the bracket; 32. a rotating device; 33. a bearing; 34. an outer ring gear; 351. a first wedge mirror; 352. a second wedge mirror; 36. a guide device; 371. a first fixed seat; 371a, adjusting teeth; 372. a second fixed seat; 372a, an arc-shaped hole; 4. an adjustment device; 5. a laser collimating device; 6. protective glasses; 7. a CCD camera; 8. a semi-reflecting and semi-transmitting mirror.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which:
referring to fig. 1 to 5, an annular laser welding apparatus includes a housing 1, an introduction device 2 disposed on the housing 1 for introducing a laser beam in a beam shape, a converter 3 for converting the laser beam into an annular laser beam, and an adjustment device 4 disposed on the housing 1 for adjusting a diameter of the annular laser beam, wherein the converter 3 includes a rotating bracket 31 rotatably disposed with the housing 1, a wedge mirror disposed in the rotating bracket 31, and a rotating device 32 disposed on the housing 1 for driving the rotating bracket 31 to rotate. In this embodiment, the welding device has an axis, and the central axis of the lead-in device 2 and the central axis of the output of the converter 3 are coincident with the axis of the device.
The laser beam passes through the wedge-shaped mirror, the angle of the laser beam is changed, the laser beam deviates from the axis, the laser beam is emitted in a direction parallel to the axial direction after the angle of the laser beam is adjusted, and when the wedge-shaped mirror rotates along with the rotating support 31, the track of the emitted laser beam is in a circular ring shape with the axis as the axis. The diameter of the circular ring far exceeds that of the original laser beam, so that the welding range of the laser is expanded, a larger gap can be welded by the laser, and the requirement of the laser welding on the butt joint precision of the gap is reduced.
In this embodiment, the rotating bracket 31 is rotatably connected to the housing 1 through a bearing 33, an outer gear ring 34 is disposed outside the rotating bracket 31, the rotating device 32 includes a motor and a gear driven by the motor, the gear is engaged with the outer gear ring 34, and the motor is disposed on a side wall of the housing 1, so that the rotating bracket 31 is driven by the motor to rotate.
A laser collimation device 5 is also arranged between the introduction device 2 and the converter 3. Thereby ensuring that the laser can be emitted along the axial direction to ensure the roundness of the annular laser.
In addition, a CCD camera 7 is provided on the side of the lower case 13, and the CCD camera 7 is used to detect an image of the welding portion, and specifically, the CCD camera 7 inputs the detected image to a computer, and the computer outputs the image to a display device (not shown) after processing by the laser welding monitoring software V1.0. The welded condition can be observed in real time through the CCD camera 7, so that the welding can be adjusted conveniently.
An annular laser channel for emitting annular laser is arranged in the lower shell 13, a semi-reflecting and semi-transmitting mirror 8 for reflecting incident light through emitted light is arranged in the annular laser channel, and the semi-reflecting and semi-transmitting mirror 8 reflects the light emitted into the annular laser channel to the CCD camera 7. Half reflects half mirror 8 is prior art, and its tow sides have all plated the one deck and have penetrated half anti-membrane, and the upper strata sees through, and lower floor's reflection can make optic fibre pass from the top down to the light that passes through from the bottom up is reflected, and in this embodiment, half reflects half mirror 8 can make annular laser beam pass from half reflecting half mirror 8, welds the work piece, and the light that the work piece reflection simultaneously gets into CCD camera 7 after half reflects half mirror 8's reflection.
Specifically, the half-reflecting and half-transmitting mirror 8 is obliquely arranged in the annular laser channel, and the included angle between the half-reflecting and half-transmitting mirror 8 and the axis of the annular laser channel is 40-50 degrees. After passing through the through hole in the side wall of the lower housing 13, the light reflected by the half-reflecting and half-transmitting mirror 8 enters the CCD camera 7 after being reflected by the reflecting mirror arranged at the outer side of the lower housing 13.
The converter 3 in this embodiment further includes a first wedge mirror 351 disposed on the rotating bracket, one surface of which is perpendicular to the axis, a second wedge mirror 352 disposed on the rotating bracket, one surface of which is perpendicular to the axis, and a guiding device 36 and an adjusting assembly, wherein the guiding device 36 is a convex lens in this embodiment, the adjusting assembly includes a first fixing seat 371 for fixing the first wedge mirror 351, a second fixing seat 372 for fixing the first wedge mirror 351, and a locking member (not shown) for locking or unlocking the first fixing seat 371 and the first fixing seat 371 with each other, and the first fixing seat 371 is rotatably disposed on the second fixing seat 372 along the axis.
Wherein, first fixing base 371 with second fixing base 372 is cylindric, just first fixing base 371 with the axial lead of second fixing base 372 with the axial coincides each other, second fixing base 372 overlaps establishes the outside of first fixing base 371. The second fixed seat 372 is provided with a fixed ring and a retainer ring for fixing the second wedge-shaped mirror 352.
The second fixing seat 372 is provided with arc-shaped holes 372a distributed along the circumferential direction. The portion of the periphery of the first fixed seat 371, which is exposed out of the arc-shaped hole, is provided with an adjusting tooth 371 a. The second fixing seat 372 has a fixing portion for fixing the guiding device 36. The first fixing seat 371 can be rotated by shifting the adjusting tooth 371a, so that the angle between the first wedge-shaped mirror 351 and the second wedge-shaped mirror 352 is changed, the deflection direction of the laser passing through the first wedge-shaped mirror 351 and the second wedge-shaped mirror 352 is adjusted, and the diameter of an annular light spot generated when the rotating support 31 rotates is changed accordingly.
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 (7)
1. The utility model provides an annular laser device's facula diameter adjustment assembly, annular laser device includes the axis, follows the laser generator of axis transmission laser, along axis pivoted rotating bracket, set up one side on the rotating bracket is perpendicular the first wedge mirror that the axis set up, set up one side on the rotating bracket is perpendicular the second wedge mirror that the axis set up and will first wedge mirror the laser direction after the second wedge mirror deflects to being parallel the guider of axis, its characterized in that: the adjusting component comprises a first fixing seat for fixing the first wedge-shaped mirror, a second fixing seat for fixing the first wedge-shaped mirror and a locking piece for locking or unlocking the first fixing seat and the first fixing seat with each other, and the first fixing seat is rotatably arranged on the second fixing seat along the axis.
2. The spot diameter adjusting assembly of the ring laser device according to claim 1, wherein: the first fixing seat and the second fixing seat are cylindrical, the axial leads of the first fixing seat and the second fixing seat are coincident with the axial direction, and the second fixing seat is sleeved on the outer side of the first fixing seat.
3. The spot diameter adjusting assembly of the ring laser device according to claim 2, wherein: and arc-shaped holes distributed along the circumferential direction of the second fixing seat are formed in the second fixing seat.
4. The spot diameter adjusting assembly of the ring laser device according to claim 3, wherein: the part of the periphery of the first fixed seat, which is exposed out of the arc-shaped hole, is provided with adjusting teeth.
5. The spot diameter adjusting assembly of the ring laser device according to claim 1, wherein: the second fixing seat is provided with a fixing part for fixing the guide device.
6. The spot diameter adjusting assembly of the ring laser device according to claim 1, wherein: and the first fixed seat is provided with a sleeve and a check ring for fixing the first wedge-shaped mirror.
7. The spot diameter adjusting assembly of the ring laser device according to claim 1, wherein: and the second fixed seat is provided with a fixed ring and a check ring for fixing the second wedge-shaped mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875278.6A CN110977151A (en) | 2019-09-17 | 2019-09-17 | Light spot diameter adjusting assembly of annular laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875278.6A CN110977151A (en) | 2019-09-17 | 2019-09-17 | Light spot diameter adjusting assembly of annular laser device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110977151A true CN110977151A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910875278.6A Pending CN110977151A (en) | 2019-09-17 | 2019-09-17 | Light spot diameter adjusting assembly of annular laser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110977151A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116551176A (en) * | 2023-07-12 | 2023-08-08 | 长春理工大学 | Infrared detection window laser welding device and welding method |
-
2019
- 2019-09-17 CN CN201910875278.6A patent/CN110977151A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023284538A1 (en) * | 2021-07-13 | 2023-01-19 | 岗春激光科技（江苏）有限公司 | Lens assembly and laser welding head |
| CN116551176A (en) * | 2023-07-12 | 2023-08-08 | 长春理工大学 | Infrared detection window laser welding device and welding method |
| CN116551176B (en) * | 2023-07-12 | 2023-09-15 | 长春理工大学 | Infrared detection window laser welding device and welding method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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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. |