CN201760708U - Constant optical path device for laser processing - Google Patents
Constant optical path device for laser processing Download PDFInfo
- Publication number
- CN201760708U CN201760708U CN200920218588.2U CN200920218588U CN201760708U CN 201760708 U CN201760708 U CN 201760708U CN 200920218588 U CN200920218588 U CN 200920218588U CN 201760708 U CN201760708 U CN 201760708U
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- reflecting optics
- laser beams
- laser
- cantilever beam
- guide rail
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Abstract
The utility model relates to a constant optical path device for laser processing. Laser beams emitted by a laser cutting machine are not parallel to one another absolutely, and diverging angles are formed among the laser beams. The diameter of the laser beams becomes larger when the laser beams are transmitted for a long distance, so that the focal spot is unstable, which directly impacts cutting quality. An optical lens can be used for controlling the laser beams to change, and usually, laser beams changed within 3 mm can be obtained. As the service life of a transmission lens is relatively shorter, and the price of the transmission lens is relatively higher, the use cost and the maintenance cost are relatively higher. The utility model adopts the solution that the constant optical path device comprises a first reflecting lens (1), a second reflecting lens (2), a third reflecting lens (3), a fourth reflecting lens (4), a cantilever beam (5), a laser cutting head (6), a cantilever beam guide rail (7) and a reflecting lens guide rail (8). The total length of the light path is controlled to be unchanged during a cutting process, so as to ensure that the position of the cutting focus point is stable.
Description
Affiliated technical field
The utility model relates to the permanent light path device of a kind of Laser Processing, and the length that can control light path in cutting process is constant, and then guarantees the stable of cutting focal position.
Background technology
The laser beam that laser cutting machine sends is not an absolute parallel, and certain angle of divergence is arranged.Laser beam is through long-distance transmissions, and its enlarged-diameter causes the instability of focal spot, directly influences cut quality.The method that the control light beam changes can realize that this method can obtain the light beam less than 3 millimeters variations usually by optical mirror slip, but because the transmission eyeglass life-span is relatively short and price is higher, so the working service cost is higher.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of Laser Processing permanent light path device, and the length that can control light path in cutting process is constant, and then guarantees the stable of cutting focal position.
The technical scheme that its technical problem that solves the utility model adopts is: provide a kind of Laser Processing permanent light path device, by first reflecting optics (1), second reflecting optics (2), the 3rd reflecting optics (3), the 4th reflecting optics (4), cantilever beam (5), laser cutting head (6), cantilever beam guide rail (7) and speculum guide rail (8) are formed, it is characterized in that: said first reflecting optics (1) maintains static, second reflecting optics (2) and the 3rd reflecting optics (3) connect into integral body, can move together along speculum guide rail (8).
Said permanent light path device, it is characterized in that: the 4th reflecting optics (4) is installed on the cantilever beam (5), move along cantilever beam guide rail (7) with cantilever beam (5), laser beam (9) passes through by first reflecting optics (1), second reflecting optics (2), the 3rd reflecting optics (3), the 4th reflecting optics (4) and laser cutting head (6) spread out of.
The beneficial effects of the utility model are that the length of control light path is constant in cutting process, and then guarantees the stable of cutting focal position.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing 1 is a permanent light path device structural representation of the present utility model.
1. first reflecting optics among the figure, 2. second reflecting optics, 3. the 3rd reflecting optics, 4. the 4th reflecting optics, 5. cantilever beam, 6. laser cutting head, 7. cantilever beam guide rail, 8. speculum guide rail.
The specific embodiment
In the accompanying drawings, the method and the lathe of first reflecting optics, 1 usefulness mechanical connection are consolidated, and therefore first reflecting optics 1 is fixed in laser cutting process.
Second reflecting optics 2 and the 3rd reflecting optics 3 connect into an integral body, can move together along speculum guide rail 8.
The 4th reflecting optics 4 is installed on the cantilever beam 5, moves along cantilever beam guide rail 7 with cantilever beam 5, and laser beam 9 spreads out of by first reflecting optics, 1, the second reflecting optics 2, the three reflecting optics, 3, the four reflecting optics 4 and laser cutting head 6.
In the process of laser cutting,, just can obtain stablizing constant spot diameter as long as the control total optical path length is constant.
Under the control of digital control system, second reflecting optics 2 and the 3rd reflecting optics 3 move together along speculum guide rail 8, along cantilever beam guide rail 7 mobile certain rule are arranged with the 4th reflecting optics 4 and laser cutting head 6 with respect to cantilever beam 5.
When cantilever beam 5 moved to the position of diagram cantilever beam 5 ', displacement was L; Meanwhile, second reflecting optics 2 and 3 of the 3rd reflecting optics move to the position of diagram second reflecting optics 2 ' and the 3rd reflecting optics 3 ' together, and displacement is S.
As long as accomplishing displacement relation is L=2S, just can guarantees that total optical path length is constant in the displacement process, and then guarantee the constant of cutting focal position.This permanent light path device has structurally guaranteed above-mentioned requirements.
Claims (2)
1. the permanent light path device of a Laser Processing, by first reflecting optics (1), second reflecting optics (2), the 3rd reflecting optics (3), the 4th reflecting optics (4), cantilever beam (5), laser cutting head (6), cantilever beam guide rail (7) and speculum guide rail (8) are formed, and it is characterized in that: said first reflecting optics (1) maintains static, second reflecting optics (2) and the 3rd reflecting optics (3) connect into integral body, can move together along speculum guide rail (8).
2. according to the said permanent light path device of claim 1, it is characterized in that: the 4th reflecting optics (4) is installed on the cantilever beam (5), move along cantilever beam guide rail (7) with cantilever beam (5), laser beam (9) passes through by first reflecting optics (1), second reflecting optics (2), the 3rd reflecting optics (3), the 4th reflecting optics (4) and laser cutting head (6) spread out of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920218588.2U CN201760708U (en) | 2009-10-13 | 2009-10-13 | Constant optical path device for laser processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920218588.2U CN201760708U (en) | 2009-10-13 | 2009-10-13 | Constant optical path device for laser processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760708U true CN201760708U (en) | 2011-03-16 |
Family
ID=43713310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920218588.2U Expired - Fee Related CN201760708U (en) | 2009-10-13 | 2009-10-13 | Constant optical path device for laser processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935555A (en) * | 2012-11-27 | 2013-02-20 | 宁波金凤焊割机械制造有限公司 | Gantry-carried type laser cutting machine |
| WO2021056697A1 (en) * | 2019-09-25 | 2021-04-01 | 清华大学 | Multi-reflector laser dynamic focusing system based on variable optical path |
-
2009
- 2009-10-13 CN CN200920218588.2U patent/CN201760708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935555A (en) * | 2012-11-27 | 2013-02-20 | 宁波金凤焊割机械制造有限公司 | Gantry-carried type laser cutting machine |
| WO2021056697A1 (en) * | 2019-09-25 | 2021-04-01 | 清华大学 | Multi-reflector laser dynamic focusing system based on variable optical path |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Shuaichao Laser Engineering Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20131013 |