CN103212823B - The focus searching method of Photoelectric Jiao's device - Google Patents
The focus searching method of Photoelectric Jiao's device Download PDFInfo
- Publication number
- CN103212823B CN103212823B CN201210016581.9A CN201210016581A CN103212823B CN 103212823 B CN103212823 B CN 103212823B CN 201210016581 A CN201210016581 A CN 201210016581A CN 103212823 B CN103212823 B CN 103212823B
- Authority
- CN
- China
- Prior art keywords
- photoelectric
- jiao
- control system
- elevating bracket
- focus
- 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.)
- Active
Links
Landscapes
- Laser Beam Processing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
The present invention relates to the focus searching method of a kind of Photoelectric Jiao's device, mainly solve the difficult target-seeking problem in focal position during cut operation in prior art, the present invention is by using the focus searching method of a kind of Photoelectric Jiao's device, and Photoelectric Jiao's device used includes being made up of photoelectric sensor, automatic lifting seat, computer control system.When needs regulation focus lamp moves up and down and focal position is occupy ideal position below cutting head, Photoelectric Jiao's device is placed on the lower section of cutting head, laser outputs direct light, start Photoelectric Jiao's device, the self-raising platform of Photoelectric Jiao's device moves up, guide light and fall on the photosensor, sensor photosensitive sends signal, computer starts operation control, when lifting platform be raised to certain altitude hot spot become again minimum some time, control system is automatically stopped the technical scheme of elevating bracket work, preferably solve this problem, can be used in the detection of focus lamp job spotlight position.
Description
Technical field
The present invention relates to a kind of detection device for focus lamp job spotlight position, especially for the determination of laser cutting device focus lamp job spotlight position.
Background technology
Laser cutting device is by focus lamp, approximately parallel laser beam to be pooled a minimum high-energy point to carry out high-accuracy cutting production, general focal position below laser cutting machine cutting head light-emitting window during about 200um cut quality optimal, as shown in Figure 1, but owing to needing to place the focus lamp of different focal in same lens barrel because of cutting demand, or each lens barrel manufacturing tolerance is not quite similar, therefore the position of focus typically will not be at ideal position, as shown in Figure 2, so it is accomplished by focus lamp is moved up and down regulating focal position, it was to draw near below laser cutting machine cutting head with steel disc to observe by the naked eye in the past, the breakdown critical localisation of steel disc judges focus lamp moves up and down how many, complex operation, there is certain danger, and miss by a mile.
Chinese patent CN101169602 discloses a kind of focusing leveling measuring method and device, relates to the new method being applied to the focusing and leveling sensor-based system of wafer in projection lithography system, belongs to field of optical measurements.The present invention includes three parts: light source collimating module, focusing subsystem and leveling subsystem.The laser instrument of the present invention sends laser and collimates through single-mode fiber, again after drift compensation device, incide on tested silicon chip through polarizing beam splitter and λ/4 wave plate, make light repeatedly through tested silicon chip through plane mirror and right-angle reflecting prism, recycling battery of lens is amplified before position sensor, obtains silicon chip surface defocus information.Utilize plane beam splitter to be returned along road by light, through on lens entrance to Position-Sensitive Detector, thus obtain the two-dimentional inclination information of silicon chip surface.
Chinese patent CN1811519 discloses a kind of laser guiding focusing device for telescope, and it is mainly made up of left connection pawl, right connection pawl, cross bar, montant and semiconductor laser etc..Described semiconductor laser is placed on telescope ocular front end, the laser beam that regulation semiconductor laser sends passes telescope directive plane mirror back reflection at a distance to scale, regulate hot spot again on scale, become a fleck, which achieves telescope laser guide and focusing function.
The present invention is Photoelectric Jiao's device of a kind of focus lamp job spotlight position, is placed under laser cutting machine cutting head by this part, and opening program will Automatic-searching focal position.
Summary of the invention
The technical problem to be solved is the problem that laser cutting device focus lamp job spotlight is difficult to find present in prior art, the present invention provides the focus searching method of a kind of new Photoelectric Jiao's device, and the Photoelectric Jiao's utensil used by this focus searching method has the advantage easily seeking Jiao.
For solving above-mentioned technical problem, the technical solution used in the present invention is as follows: the focus searching method of a kind of Photoelectric Jiao's device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus.
Described Photoelectric Jiao's device, including photoelectric sensor, motor, elevating bracket, elevating lever, computer control system, the upper and lower two ends of described elevating bracket have groove, motor is positioned at below elevating bracket lower end inside grooves, elevating lever, motor upper end is connected with elevating lever bottom, and elevating lever is positioned in the upper grooves of elevating bracket, and elevating lever can move up and down relative to elevating bracket, photoelectric sensor is positioned at the center of top groove of elevating lever, the signal input computer control system of photoelectric sensor.
In technique scheme, when laser is penetrated on the photosensor, photoelectric sensor produces signal, the computer control system described in signal input.
In technique scheme, described cutting constant L is relevant with the performance of laser cutting machine, and the numerical value of L is generally 200um.
Photoelectric Jiao's device of the present invention is an independent detection device, is made up of photoelectric sensor, automatic lifting seat, computer control system.When needs regulation focus lamp moves up and down and focal position is occupy ideal position below laser cutting machine cutting head, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head, laser cutting machine outputs direct light, start Photoelectric Jiao's device, the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, sensor photosensitive sends signal, computer control system starts operation control, when elevating bracket be raised to certain altitude hot spot become again minimum some time, control system is automatically stopped elevating bracket and works.Measure laser cutting machine cutting head light-emitting window and be about the ideal position of focus lamp focus, according to cutting effect vernier focusing mirror position with satisfied cutting demand away from Photoelectric Jiao's device upper surface distance cutting 200um.
The present invention is Photoelectric Jiao's device of a kind of focus lamp job spotlight position, solves the problem that laser cutting device focus lamp job spotlight is difficult to find, improves debugging efficiency, simple to operate, safe and reliable, achieves preferable technique effect.
Accompanying drawing explanation
Fig. 1 is cut ideal operation view.
Fig. 2 is that focus is not at preferable position view.
Fig. 3 is Photoelectric Jiao's device schematic diagram.
Fig. 4 is that burnt process schematic sought by Photoelectric Jiao's device.
Fig. 5 is that burnt process schematic sought by Photoelectric Jiao's device.
In Fig. 1,1 is focus lamp；2 for converging light；3 is laser cutting machine cutting head light-emitting window；4 cut steel plate for band.
In Fig. 2,1 is focus lamp；2 for converging light；3 is laser cutting machine cutting head light-emitting window；4 cut steel plate for band；5 move down for focus.
In Fig. 3,1 is elevating lever；2 is photoelectric sensor；3 is motor；4 is elevating bracket.
In Fig. 4,1 is focus lamp；2 for converging light；3 capture hot spot for Photoelectric Jiao's device；4 is elevating bracket.
In Fig. 5,1 is focus lamp；2 for converging light；3 for being elevated to focal position；4 is elevating bracket.
Below by specific embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Specific embodiment
[embodiment 1]
A kind of focus searching method of Photoelectric Jiao's device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus.
Described Photoelectric Jiao's device, as shown in Figure 3, including photoelectric sensor 2, motor 3, elevating bracket 4, elevating lever 1, computer control system, described elevating bracket about 4 two ends have groove, motor 3 is positioned at below elevating bracket 4 lower end inside grooves, elevating lever 1, motor 3 upper end is connected with elevating lever 1 bottom, elevating lever 1 is positioned in the upper grooves of elevating bracket 4, elevating lever 1 can move up and down relative to elevating bracket 4, photoelectric sensor 2 is positioned at the center of top groove of elevating lever 1, the signal input computer control system of photoelectric sensor 2.
[embodiment 2]
A kind of focus searching method of Photoelectric Jiao's device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus.
Described Photoelectric Jiao's device, including photoelectric sensor, motor, elevating bracket, elevating lever, computer control system, the upper and lower two ends of described elevating bracket have groove, motor is positioned at below elevating bracket lower end inside grooves, elevating lever, motor upper end is connected with elevating lever bottom, and elevating lever is positioned in the upper grooves of elevating bracket, and elevating lever can move up and down relative to elevating bracket, photoelectric sensor is positioned at the center of top groove of elevating lever, the signal input computer control system of photoelectric sensor.When laser is penetrated on the photosensor, photoelectric sensor produces signal, the computer control system described in signal input.
[embodiment 3]
A kind of focus searching method of Photoelectric Jiao's device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus.Wherein, L is 200um.Photoelectric Jiao's process is as shown in Figure 4 and Figure 5.
[embodiment 4]
A kind of focus searching method of Photoelectric Jiao's device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus.Wherein, L is 250um.
[embodiment 5]
Photoelectric Jiao's device is an independent detection device, is made up of photoelectric sensor, automatic lifting seat, computer control system.When needs regulation focus lamp moves up and down and focal position is occupy ideal position below laser cutting machine cutting head, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head, laser cutting machine outputs direct light, start Photoelectric Jiao's device, the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, photoelectric sensor is photosensitive sends signal, computer control system starts operation control, when elevating bracket be raised to certain altitude hot spot become again minimum some time, computer control system is automatically stopped elevating bracket work, measure laser cutting machine cutting head light-emitting window and be about the ideal position of focus lamp focus away from Photoelectric Jiao's device upper surface distance cutting 200um, according to cutting effect vernier focusing mirror position with satisfied cutting demand.
[embodiment 6]
A kind of Photoelectric Jiao's device, including photoelectric sensor, motor, elevating bracket, elevating lever, computer control system, the upper and lower two ends of described elevating bracket have groove, motor is positioned at below elevating bracket lower end inside grooves, elevating lever, motor upper end is connected with elevating lever bottom, and elevating lever is positioned in the upper grooves of elevating bracket, and elevating lever can move up and down relative to elevating bracket, photoelectric sensor is positioned at the center of top groove of elevating lever, the signal input computer control system of photoelectric sensor.When laser is penetrated on the photosensor, photoelectric sensor produces signal, the computer control system described in signal input.
The focus searching method of above-mentioned Photoelectric Jiao's device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus.Wherein, L is 200um.
Claims (2)
1. a focus searching method for Photoelectric Jiao device, including following several steps:
A) when needs regulation focus lamp moves up and down, Photoelectric Jiao's device is placed on the lower section of laser cutting machine cutting head；
B) laser cutting machine outputs direct light, starts Photoelectric Jiao's device, and the elevating bracket of Photoelectric Jiao's device moves up, direct light falls on the photosensor, the photosensitive signal that sends of photoelectric sensor, the signal input computer control system of photoelectric sensor, computer control system starts operation control；
C) be raised to certain altitude when elevating bracket, hot spot become again minimum some time, computer control system is automatically stopped elevating bracket and works；
D) measure laser cutting machine cutting head light-emitting window away from Photoelectric Jiao's device upper surface distance, then cut cutting constant L, be the position of focus lamp focus；
It is characterized in that described Photoelectric Jiao's device, including photoelectric sensor, motor, elevating bracket, elevating lever, computer control system, the upper and lower two ends of described elevating bracket have groove, motor is positioned at below elevating bracket lower end inside grooves, elevating lever, motor upper end is connected with elevating lever bottom, elevating lever is positioned in the upper grooves of elevating bracket, elevating lever can move up and down relative to elevating bracket, photoelectric sensor is positioned at the center of top groove of elevating lever, the signal input computer control system of photoelectric sensor.
The focus searching method of Photoelectric Jiao's device the most according to claim 1, it is characterised in that described cutting constant L is relevant with the performance of laser cutting machine, and the numerical value of L is 200um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016581.9A CN103212823B (en) | 2012-01-19 | 2012-01-19 | The focus searching method of Photoelectric Jiao's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210016581.9A CN103212823B (en) | 2012-01-19 | 2012-01-19 | The focus searching method of Photoelectric Jiao's device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103212823A CN103212823A (en) | 2013-07-24 |
| CN103212823B true CN103212823B (en) | 2016-08-31 |
Family
ID=48811155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210016581.9A Active CN103212823B (en) | 2012-01-19 | 2012-01-19 | The focus searching method of Photoelectric Jiao's device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103212823B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414286B (en) * | 2017-04-26 | 2018-08-07 | 深圳市创鑫激光股份有限公司 | A kind of laser marking machine focus adjustment method, device and laser marking machine |
| CN110238547B (en) * | 2019-05-09 | 2020-12-18 | 西安理工大学 | System and method for measuring position of high-power laser focus |
| CN111207911A (en) * | 2020-01-19 | 2020-05-29 | 中国科学院上海光学精密机械研究所 | Method for measuring refractive index of parallel plane transparent solid material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2453411Y (en) * | 2000-12-15 | 2001-10-10 | 中国科学院西安光学精密机械研究所 | Laser minimum light spot measuring device |
| EP1146375A2 (en) * | 2000-04-13 | 2001-10-17 | STN ATLAS Elektronik GmbH | Method and apparatus for focusing an image |
| CN101074868A (en) * | 2007-06-18 | 2007-11-21 | 厦门大学 | Method and apparatus for inspection automatically focusing non-spherical surface |
| CN201231376Y (en) * | 2008-08-04 | 2009-05-06 | 深圳市华德激光技术有限公司 | Laser template cutting machine focal position adjustment mechanism |
| CN102305988A (en) * | 2011-09-13 | 2012-01-04 | 江苏森莱浦光电科技有限公司 | Automatic focusing device for projective bulb based on light spot detection and use method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5034556B2 (en) * | 2007-02-27 | 2012-09-26 | 株式会社ニコン | Focus detection apparatus and imaging apparatus |
| JP4926993B2 (en) * | 2008-01-29 | 2012-05-09 | キヤノン株式会社 | Focus detection apparatus and imaging apparatus |
-
2012
- 2012-01-19 CN CN201210016581.9A patent/CN103212823B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1146375A2 (en) * | 2000-04-13 | 2001-10-17 | STN ATLAS Elektronik GmbH | Method and apparatus for focusing an image |
| CN2453411Y (en) * | 2000-12-15 | 2001-10-10 | 中国科学院西安光学精密机械研究所 | Laser minimum light spot measuring device |
| CN101074868A (en) * | 2007-06-18 | 2007-11-21 | 厦门大学 | Method and apparatus for inspection automatically focusing non-spherical surface |
| CN201231376Y (en) * | 2008-08-04 | 2009-05-06 | 深圳市华德激光技术有限公司 | Laser template cutting machine focal position adjustment mechanism |
| CN102305988A (en) * | 2011-09-13 | 2012-01-04 | 江苏森莱浦光电科技有限公司 | Automatic focusing device for projective bulb based on light spot detection and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103212823A (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5711899B2 (en) | Alignment adjustment method, alignment adjustment apparatus, and laser processing apparatus provided with alignment adjustment apparatus | |
| US10739191B2 (en) | Determining a beam profile of a laser beam | |
| US10969299B2 (en) | Lens refractive index detection device and method | |
| CN104316506B (en) | Raman probe and Raman signal detection system and method capable of focusing automatically | |
| CN102735190B (en) | Detection device and detection method used for laser-beam deflection angle | |
| CN104979749A (en) | High-power semiconductor fiber-coupled laser and coupling method thereof | |
| US20150292866A1 (en) | Film thickness measurement device and method | |
| CN103212823B (en) | The focus searching method of Photoelectric Jiao's device | |
| CN104316507B (en) | Raman signal detection system and method | |
| CN204760745U (en) | High power semiconductor optic fibre coupled laser | |
| US9945756B2 (en) | Measurement of focal points and other features in optical systems | |
| CN111006854A (en) | Device and method for testing diffraction efficiency of micro-nano structure lens | |
| TW201718147A (en) | Laser machining system and method for real-time machining amount confirmation | |
| CN209477512U (en) | A kind of laser-processing system optical path calibrating device | |
| JP2012194085A (en) | Edge detection apparatus | |
| CN103212815B (en) | The burnt device of multispectral Photoelectric | |
| KR20140084483A (en) | method of laser machining and apparatus adopting the method | |
| CN202511756U (en) | Photoelectric focus searching device | |
| CN103217099A (en) | Photovoltaic focus following device | |
| KR101043202B1 (en) | method for controlling position of eye examining apparatus using mire ring light and focus light and eye examining apparatus using the same | |
| JP5172011B2 (en) | Displacement measuring device and displacement measuring method | |
| JP7034803B2 (en) | Distance measurement unit and light irradiation device | |
| CN111044264A (en) | Waveguide sheet detection device | |
| CN202836507U (en) | Multi-spectral photoelectric focus searching device | |
| CN103217098A (en) | Focus finding method for multi-spectral photoelectrical focus finding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |