CN202062161U - Light path compensation system for laser cutting - Google Patents
Light path compensation system for laser cutting Download PDFInfo
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- CN202062161U CN202062161U CN 201120084279 CN201120084279U CN202062161U CN 202062161 U CN202062161 U CN 202062161U CN 201120084279 CN201120084279 CN 201120084279 CN 201120084279 U CN201120084279 U CN 201120084279U CN 202062161 U CN202062161 U CN 202062161U
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- laser
- cutting
- mirror
- compensation system
- path compensation
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Abstract
The utility model discloses a light path compensation system for laser cutting, which belongs to the technical field of laser cutting machines and comprises a laser device, a fixed-curvature loop mirror, a common reflector and a focusing lens. Laser beams emitted by the laser device are firstly reflected via the fixed-curvature loop mirror, reach the focusing lens after being further reflected by the common reflector and realize beam focusing by the focusing lens prior to cutting plates. The divergence angle of the laser beams emitted by the laser device is small after the laser beams are reflected by the fixed-curvature loop mirror, the laser beams are spread within a cutting range of the plates in a manner similar to parallel light, stability of the focus position and the focal depth after focusing is guaranteed, and stability of the cutting quality is ensured. The light path compensation system for laser cutting is simple in structure, fine in compensation effect and low in cost.
Description
Technical field
The utility model relates to a kind of laser cutting optical path compensation system, belongs to the laser cutting machine technical field.
Background technology
The digital control laser cutting is that laser is carried out cutting processing as a kind of manufacturing process to metal or nonmetal plate, can be on flat sheet the curve of processing linear and arbitrary shape, be widely used in electric manufacturing, automobile, meter switch, textile machine, Transport Machinery, household electrical appliances manufacturing, lift facility manufacturing, food industry, decoration and advertisement and laser machining station etc.
Because laser beam has the phenomenon of dispersing, fast axis streaming CO in transmittance process
2The angle of divergence of laser instrument is generally 2 milliradians, and laser beam transmits one meter of every prolongation, and beam diameter increases by 2 millimeters.
Existing laser cutting light path comprises laser instrument, normal mirror and focus lamp, and the laser beam that laser instrument sends arrives focus lamp after a series of normal mirror reflections, and the line focus mirror carries out after light beam focuses on sheet material being cut again.During laser cutting, speculum moves, the length of light path is changing all the time, because dispersing of laser beam, so diameter difference at different its focused beams of Working position of sheet material, thereby it is all different to cause focusing on back focus position and depth of focus, makes the cut quality of same sheet material descend, even can not cut.Cut quality that obtains and efficient at first will guarantee the variation that beam diameter is as far as possible little.
In order to improve cut quality, numerical control laser cutter has adopted the aplanatism bucking-out system mostly at present, make its optical path length of different Working positions of sheet material the same, but this system needs a cover independent driving mechanisms, structure is complicated, and also needing this system to have good dynamic characteristic for high-speed cutting, cost drops into higher.
Fixedly the curvature annular mirror has and will reduce the characteristics of beam divergence angle after the beam reflection, and its minute surface is a concave mirror, and its centre is the plane, and the centre periphery is the fixing annular minute surface of curvature, and the periphery of annular minute surface is the conical surface.
The utility model content
The purpose of this utility model is, overcomes problems of the prior art, and a kind of laser cutting optical path compensation system is provided, and is little in the vary in diameter of the different Working position laser focused beams of sheet material.
For solving above technical problem, a kind of laser cutting optical path compensation provided by the utility model system, comprise laser instrument, normal mirror and focus lamp, the laser beam that described laser instrument sends arrives described focus lamp after described normal mirror reflection, again through described focus lamp carry out light beam focus on after directive sheet material, be provided with fixedly curvature annular mirror between described laser instrument and described normal mirror, the laser beam that described laser instrument sends is the described normal mirror of directive after described fixedly curvature annular mirror reflection.
With respect to prior art, the utility model has been obtained following beneficial effect: the laser beam that laser instrument sends arrives focus lamp more earlier through fixedly curvature annular mirror reflection after the normal mirror reflection, carries out light beam by focus lamp and focuses on the back cuts sheet material; Laser beam after fixedly the curvature annular mirror reflects, its angle of divergence is very little, its beam propagation is similar to directional light in the cut coverage of sheet material, guaranteed to focus on the stable of back focus position and depth of focus, guaranteed the stable of cut quality, this system architecture is simple, only need install additional a slice fixedly the curvature annular mirror get final product, compensation effect is good, and cost is lower.
Description of drawings
Fig. 1 is the schematic diagram of the utility model laser cutting optical path compensation system.
Among the figure: 1 laser instrument; 2 laser beams; 3 fixing curvature annular mirrors; 4 normal mirror; 5 focus lamps; 6 sheet materials.
The specific embodiment
As shown in Figure 1, laser cutting optical path compensation of the present utility model system, comprise laser instrument 1, fixedly curvature annular mirror 3, normal mirror 4 and focus lamp, the laser beam 2 that laser instrument 1 sends is earlier through fixedly curvature annular mirror 3 reflections, after normal mirror 4 reflections, arrive focus lamp 5 again, carry out light beam by focus lamp 5 and focus on back cuts sheet material 6.The laser beam 2 that laser instrument 1 sends its angle of divergence after fixedly curvature annular mirror 3 reflects is very little, and its beam propagation is similar to directional light in the cut coverage of sheet material 6, has guaranteed to focus on the stable of back focus position and depth of focus, has guaranteed the stable of cut quality.
Fixedly the curvature annular mirror preferably adopts fixedly curvature annular mirror of Adoptic-60 type that German LT company (LT Ultra Precision Technology GmbH.) produces.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (1)
1.
A kind of laser cutting optical path compensation system, comprise laser instrument, normal mirror and focus lamp, the laser beam that described laser instrument sends arrives described focus lamp after described normal mirror reflection, again through described focus lamp carry out light beam focus on after directive sheet material, it is characterized in that: be provided with fixedly curvature annular mirror between described laser instrument and described normal mirror, the laser beam that described laser instrument sends is the described normal mirror of directive after described fixedly curvature annular mirror reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120084279 CN202062161U (en) | 2011-03-28 | 2011-03-28 | Light path compensation system for laser cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120084279 CN202062161U (en) | 2011-03-28 | 2011-03-28 | Light path compensation system for laser cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202062161U true CN202062161U (en) | 2011-12-07 |
Family
ID=45056039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120084279 Expired - Fee Related CN202062161U (en) | 2011-03-28 | 2011-03-28 | Light path compensation system for laser cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202062161U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907694A (en) * | 2015-06-25 | 2015-09-16 | 中机西南能源科技有限公司 | Laser welding device for honeycomb panel-type heat exchanger |
| CN107594608A (en) * | 2017-10-17 | 2018-01-19 | 云南中烟工业有限责任公司 | A kind of device of laser cutting tobacco leaf |
| WO2022142296A1 (en) * | 2020-12-31 | 2022-07-07 | 武汉华工激光工程有限责任公司 | Oblique cutting compensation method and system for transparent brittle material |
-
2011
- 2011-03-28 CN CN 201120084279 patent/CN202062161U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907694A (en) * | 2015-06-25 | 2015-09-16 | 中机西南能源科技有限公司 | Laser welding device for honeycomb panel-type heat exchanger |
| CN104907694B (en) * | 2015-06-25 | 2016-06-08 | 中机西南能源科技有限公司 | A kind of honeycombed sheet type ice making heat exchanger laser soldering device |
| CN107594608A (en) * | 2017-10-17 | 2018-01-19 | 云南中烟工业有限责任公司 | A kind of device of laser cutting tobacco leaf |
| WO2022142296A1 (en) * | 2020-12-31 | 2022-07-07 | 武汉华工激光工程有限责任公司 | Oblique cutting compensation method and system for transparent brittle material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20200328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |