CN204430557U - A kind of laser beam automatic focusing mechanism - Google Patents
A kind of laser beam automatic focusing mechanism Download PDFInfo
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- CN204430557U CN204430557U CN201520024437.9U CN201520024437U CN204430557U CN 204430557 U CN204430557 U CN 204430557U CN 201520024437 U CN201520024437 U CN 201520024437U CN 204430557 U CN204430557 U CN 204430557U
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Abstract
The utility model is a kind of laser beam automatic focusing mechanism, gather benchmark red light source (3) and auxiliary red light source (4) by image collecting device (5) and be incident upon luminous point image information in the bottom platform (1) of frame (6) to controller, then control lowering or hoisting gear (7) drive laser (2) by controller and be elevated with the focal adjustments action realizing laser instrument (2).The utility model is applied in and adds man-hour to the plane of differing heights or curved surface, can find the focus of laser beam fast and accurately.
Description
Technical field
The utility model relates to a kind of laser beam automatic focusing mechanism.
Background technology
Along with the development of pulse laser micro-processing technology, the requirement for machining accuracy is more and more higher.Wherein, the effect of focal position to Laser Micro-Machining of laser beam has a great impact, and when opposite piece surface, focal position is lower, the facula area through surface of the work is very large, very large horn mouth can be produced, affect working depth due to the reduction of energy density simultaneously.Therefore, generally carry out adding man-hour, focus should be positioned at machined material surface or lower slightly position accurately.But finished surface differs and is decided to be single plane in actual applications, or is curved-surface structure, therefore in process, needs the focal position adjusting laser beam at any time.Now aborning, adopt the mode of artificial visually examine, speed is slow, and efficiency is low, and focusing precision is not high enough, and the processing occasion for curved surface is infeasible, therefore in the urgent need to focusing mechanism that automaticity is higher.
Summary of the invention
The purpose of this utility model is to provide a kind of laser beam automatic focusing mechanism, adding man-hour to the plane of differing heights or curved surface, can find the focus of laser beam fast and accurately.
To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of laser beam automatic focusing mechanism, be applied to the laser beam auto-focusing that laser instrument is launched, described laser instrument is positioned in frame, comprise the benchmark red light source of described laser instrument, and auxiliary red light source, also comprise image collecting device, lowering or hoisting gear and controller, the direction of illumination of described benchmark red light source intersects with the direction of illumination of described auxiliary red light source; Described image collecting device is connected to the input of controller, described lowering or hoisting gear is connected to the output of described controller, and described image collecting device is incident upon luminous point image information in the bottom platform of frame for gathering benchmark red light source and auxiliary red light source, and described lowering or hoisting gear is used for being controlled by the controller drive laser lifting action.
According to above scheme, described controller is connected with input equipment.
According to above scheme, described benchmark red light source is positioned on the end face of laser instrument.
According to above scheme, the transmit direction of described benchmark red light source is vertical with described bottom platform.
According to above scheme, the angle between the direction of illumination of described benchmark red light source and the direction of illumination of described auxiliary red light source is acute angle.
According to above scheme, described auxiliary red light source is installed in described frame by angle demodulator.
According to above scheme, described lowering or hoisting gear comprises the transmission device be connected to by laser instrument in frame, and the motor of drive transmission.
According to above scheme, described transmission device comprises ball screw, and described ball screw is connected between laser instrument and frame.
According to above scheme, described motor is servomotor.
According to above scheme, described image collecting device comprises CCD camera.
Laser beam automatic focusing mechanism of the present utility model, gather benchmark red light source and auxiliary red light source by image collecting device and be incident upon luminous point image information in the bottom platform of frame, this information is issued controller, control lowering or hoisting gear by controller to be again elevated, change the height of laser instrument, i.e. relative position between the focus of the laser beam of adjustable laser instrument transmitting and bottom platform.Relation between benchmark red light source and the luminous point of auxiliary red light source projection can be mapped with focus height in advance, can automatically control focus by controller and change height, can make laser instrument auto-focusing in bottom platform, complete focus process.Do not need artificial focusing, improve the degree of accuracy of focusing and the efficiency of focusing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is another structural representation of the present utility model.
In figure: 1, bottom platform; 2, laser instrument; 3, benchmark red light source; 4, auxiliary red light source; 5, image collecting device; 6, frame; 7, lowering or hoisting gear.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the technical solution of the utility model is described.
As depicted in figs. 1 and 2, a kind of laser beam automatic focusing mechanism described in the utility model, be applied to the laser beam auto-focusing that laser instrument 2 is launched, described laser instrument 2 is positioned in frame 6, comprise the benchmark red light source 3 of described laser instrument (2), and auxiliary red light source 4, also comprise image collecting device 5, lowering or hoisting gear 7 and controller, the direction of illumination of described benchmark red light source 3 intersects with the direction of illumination of described auxiliary red light source 4; Described image collecting device 5 is connected to the input of controller, described lowering or hoisting gear 7 is connected to the output of described controller, and described image collecting device 5 is incident upon luminous point image information in the bottom platform 1 of frame 6 for gathering benchmark red light source 3 and auxiliary red light source 4, image collecting device 5 can be arranged at optional position, as long as can capture above-mentioned luminous point image information.Described lowering or hoisting gear 7 is for being controlled by the controller drive laser 2 lifting action.Laser beam automatic focusing mechanism of the present utility model, gather benchmark red light source 3 and auxiliary red light source 4 by image collecting device 5 and be incident upon luminous point image information in the bottom platform 1 of frame 6, this information is issued controller, control lowering or hoisting gear 7 by controller to be again elevated, change the height of laser instrument 2, i.e. relative position between the focus of the laser beam of adjustable laser instrument 2 transmitting and bottom platform 1.Relation between the luminous point that benchmark red light source 3 and auxiliary red light source 4 can be projected in advance is mapped with focus height, can automatically control focus and change height, can make laser instrument 2 auto-focusing in bottom platform 1, complete focus process by controller.Do not need artificial focusing, improve the degree of accuracy of focusing and the efficiency of focusing.
Before carrying out auto-focusing, need to initialize system, relation between the luminous point that the focal position of laser instrument 2 and benchmark red light source 3 and auxiliary red light source 4 are projected is mapped, need the height manually adjusting laser instrument 2, therefore described controller is connected with input equipment, such as mouse or keyboard etc., artificially adjust the height of laser instrument 2.
For the ease of automatically adjusting to laser instrument 2 focus, described benchmark red light source 3 is positioned on the end face of laser instrument 2, benchmark red light source 3 is maintained at the same horizontal plane with the emitting facet of laser instrument 2, further, the transmit direction of described benchmark red light source 3 is vertical with described bottom platform 1, when carrying out manual initiation and in the process automatically regulated, more adequately can find focal position.
When the direction of illumination of benchmark red light source 3 keeps intersecting with the direction of illumination of described auxiliary red light source 4, just auto-focusing can be realized, but for the ease of the installation of mechanism, angle between the direction of illumination of described benchmark red light source 3 and the direction of illumination of described auxiliary red light source 4 is acute angle, auxiliary like this red light source 4 can be installed on nearer position, save installing space, simplify structure.
When initialization regulates, in order to simplify adjustment process, described auxiliary red light source 4 is installed in described frame 6 by angle demodulator, can regulate the irradiating angle of auxiliary red light source 4, irradiation angle between benchmark red light source 3 and auxiliary red light source 4 is changed, the position relationship of the irradiation luminous point of benchmark red light source 3 and auxiliary red light source 4 and laser instrument 2 focus can be made better to adapt, be convenient to initialize debugging.
For lowering or hoisting gear 7, comprise the transmission device be connected to by laser instrument 2 in frame 6, and the motor of drive transmission, described transmission device comprises ball screw particularly, described ball screw is connected between laser instrument 2 and frame 6, and described motor is servomotor, is controlled the running of servomotor by controller, driving ball screw rotates, thus realizes the adjustment of the height of laser instrument 2.
In addition, described image collecting device 5 comprises CCD camera, it is arranged on described bottom platform (1) or described lowering or hoisting gear (7), can be gathered the irradiation luminous point image information of benchmark red light source 3 and auxiliary red light source 4 by CCD camera exactly.
The utility model simplifies the focus process of laser beam, reduces the hardware cost of focusing mechanism, improves the real-time of focus process, is convenient to the practical application in engineering.
Claims (10)
1. a laser beam automatic focusing mechanism, be applied to the laser beam auto-focusing that laser instrument (2) is launched, described laser instrument (2) is positioned in frame (6), it is characterized in that, comprise the benchmark red light source (3) of described laser instrument (2), and auxiliary red light source (4), also comprise image collecting device (5), lowering or hoisting gear (7) and controller, the direction of illumination of described benchmark red light source (3) intersects with the direction of illumination of described auxiliary red light source (4); Described image collecting device (5) is connected to the input of controller, described lowering or hoisting gear (7) is connected to the output of described controller, and described image collecting device (5) is incident upon luminous point image information in the bottom platform (1) of frame (6) for gathering benchmark red light source (3) and auxiliary red light source (4), and described lowering or hoisting gear (7) is for the drive laser that is controlled by the controller (2) lifting action.
2. laser beam automatic focusing mechanism according to claim 1, is characterized in that, described controller is connected with input equipment.
3. laser beam automatic focusing mechanism according to claim 1, is characterized in that, described benchmark red light source (3) is positioned on the end face of laser instrument (2).
4. laser beam automatic focusing mechanism according to claim 3, is characterized in that, the transmit direction of described benchmark red light source (3) is vertical with described bottom platform (1).
5. laser beam automatic focusing mechanism according to claim 4, is characterized in that, the angle between the direction of illumination of described benchmark red light source (3) and the direction of illumination of described auxiliary red light source (4) is acute angle.
6. laser beam automatic focusing mechanism according to claim 1, is characterized in that, described auxiliary red light source (4) is positioned in described frame (6) by angle demodulator.
7. laser beam automatic focusing mechanism according to claim 1, is characterized in that, described lowering or hoisting gear (7) comprises the transmission device be connected to by laser instrument (2) in frame (6), and the motor of drive transmission.
8. laser beam automatic focusing mechanism according to claim 7, is characterized in that, described transmission device comprises ball screw, and described ball screw is connected between laser instrument (2) and frame (6).
9. laser beam automatic focusing mechanism according to claim 7, is characterized in that, described motor is servomotor.
10. laser beam automatic focusing mechanism according to claim 1, is characterized in that, described image collecting device (5) comprises CCD camera, and it is arranged on described bottom platform (1) or described lowering or hoisting gear (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520024437.9U CN204430557U (en) | 2015-01-14 | 2015-01-14 | A kind of laser beam automatic focusing mechanism |
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| CN201520024437.9U CN204430557U (en) | 2015-01-14 | 2015-01-14 | A kind of laser beam automatic focusing mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041297A (en) * | 2016-07-21 | 2016-10-26 | 武汉锐科光纤激光技术股份有限公司 | Laser marking focus calibration device and calibration method |
| CN106353071A (en) * | 2016-08-18 | 2017-01-25 | 宁波舜宇智能科技有限公司 | The device used to adjust laser and this device adjustment and the method to adjust laser with this device |
| CN107755879A (en) * | 2016-03-26 | 2018-03-06 | 广州新可激光设备有限公司 | Laser marking machine, regulation probe and the method and marking machine Atomatic focusing method of mark thing distance |
-
2015
- 2015-01-14 CN CN201520024437.9U patent/CN204430557U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755879A (en) * | 2016-03-26 | 2018-03-06 | 广州新可激光设备有限公司 | Laser marking machine, regulation probe and the method and marking machine Atomatic focusing method of mark thing distance |
| CN107755879B (en) * | 2016-03-26 | 2018-12-07 | 广州新可激光设备有限公司 | Laser marking machine, the method and marking machine Atomatic focusing method for adjusting probe and mark object distance |
| CN106041297A (en) * | 2016-07-21 | 2016-10-26 | 武汉锐科光纤激光技术股份有限公司 | Laser marking focus calibration device and calibration method |
| CN106041297B (en) * | 2016-07-21 | 2017-10-27 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser marking focus calibrating installation and calibration method |
| CN106353071A (en) * | 2016-08-18 | 2017-01-25 | 宁波舜宇智能科技有限公司 | The device used to adjust laser and this device adjustment and the method to adjust laser with this device |
| CN106353071B (en) * | 2016-08-18 | 2019-09-17 | 宁波舜宇智能科技有限公司 | Method for adjusting the device of laser and adjusting the device and adjust laser using the device |
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