CN2535180Y - Optical zoom apparatus of coaxial display and location measurement for laser processing - Google Patents
Optical zoom apparatus of coaxial display and location measurement for laser processing Download PDFInfo
- Publication number
- CN2535180Y CN2535180Y CN 02228382 CN02228382U CN2535180Y CN 2535180 Y CN2535180 Y CN 2535180Y CN 02228382 CN02228382 CN 02228382 CN 02228382 U CN02228382 U CN 02228382U CN 2535180 Y CN2535180 Y CN 2535180Y
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- lens
- graticle
- coaxial
- imaging lens
- laser processing
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Abstract
The utility model relates to a laser processing device used in an optical doubler device for coaxial display, coaxial location and coaxial measurement, consists of a camera lens, a reticule and a parallactic lens. A connecting piece is arranged between the drawtube of the parallactic lens and a CCD camera. The connecting piece is connected with the CCD camera by screw thread and locked by a knurled hand-wheel. With the screw thread screwed on or screwed out, the definition of an image processed by CCD can be adjusted by the reticule. The connecting piece is connected with the drawtube of the parallactic lens by a bolt. The ring flange of the drawtube of the parallactic lens is provided with an annular groove. The ring flange leads the connecting piece and the drawtube of the parallactic lens to relative rotation and movement in radial direction. Therefore, the direction and the position of the reticule image can be adjusted on an indicator screen. The camera lens and a condenser are the same in focus. The surface of a work piece is perpendicular to a plain shaft. The number of the reticule shown on the screen can be directly read, thus realizing the on-line measurement of processing factors.
Description
Technical field
The utility model relates to a kind of Laser Processing that is used for, and becomes doubly device as the optics of the coaxial demonstration of groove, location, measurement.
Technical background
In the laser scoring process, at first need workpiece is aimed at laser spot, this comprises level and vertical both direction.After machining, need accurately measure the line that processing generates.
In laser process equipment in the past, employing only has the aiming graticle of cross hairs, a kind of optical system of enlargement ratio usually, cooperates ccd video camera, display to observe.In the light modulation process of laser equipment, this system is difficult to laser facula is locked in the cross hairs center of graticle; Because optical maser wavelength is different with wavelength of visible light, when the picture quilt accent of surface of the work was clear, laser spot was not again on surface of the work.Therefore location, difficult focusing.Simultaneously, this system can not measure machining element.Often after machining, workpiece is taken off in addition with other instruments measurements from equipment.
Summary of the invention
The purpose of this utility model provides doubly device of a kind of coaxial demonstration, location, the change of measurement optics.It and laser condensing lens are formed a complete camera system, through ccd video camera, display, and can be conveniently positioned, focusing, observation and on-line measurement.And enlargement ratio is variable, satisfies the observation under the different enlargement ratios.
The utility model is achieved in that this device is made up of imaging lens, graticle and varifocal mirror group.Described imaging lens 13, graticle 9 and varifocal mirror group 6, be installed on respectively in the mirror letter 12,10 and 7 separately, trinocular tube links to each other in twos with screw thread, be with knurled nut 11 on the shell of the lens barrel 10 of graticle 9, in this device upper end a connection piece 2 is arranged, screw thread on it is connected with screw on the ccd video camera, one ring flange 18 is arranged in the lens barrel 12 of the lower end of this device imaging lens 13, and utilize screw 15,16 on the ring flange 18 this device to be installed on the support 14 of top of-45 ° of speculums 19, below-45 ° of speculums 19, be provided with focus lamp 20.Tilt adjustable between described imaging lens 13 and focus lamp 20 optical axises; Spacing between imaging lens 13 and the graticle 9 is adjustable; Between the lens barrel 7 of varifocal mirror group 6 and the ccd video camera axially, radial position is adjustable, and can relatively rotate; And can on indicator screen, directly measure various machining elements in the process with graticle 9.Described imaging lens 13 has identical focal length with focus lamp 20, constitutes balanced system, and the optical axis of focus lamp 20 is perpendicular to surface of the work 21.Ring flange 5 and 18 in described lens barrel 7 and the lens barrel 12 is provided with three cannelures.Simultaneously, this device imaging lens 13, graticle 9, varifocal mirror group 6 are in horizontal type structure, support by two support rings 23, support ring is provided with extension spring 24 and adjustment screw 25, make this device and speculum 19 be vertical 90 ° of right angles, and one 45 ° reflection surveillance mirrors are set at place, 90 ° of right angles, this device is connected as a single entity.
The utility model varifocal mirror group with surface of the work, laser focal spot line focus, imaging lens the picture that forms on the graticle together with the graticle image rotation on the ccd video camera target surface, on display, show.This device and focus lamp lay respectively at the both sides of-45 ° of speculums.Laser enters focus lamp through mirror reflects, focuses on surface of the work.Laser focal spot line focus mirror is imaged on the infinity.Imaging lens of the present utility model is imaged on it and is positioned at it as on the graticle on the square focal plane.Adjust the inclination angle of relative focus lamp optical axis, promptly changed laser focal spot and looked like to enter the angle that videotapes object lens, just can change the position of laser focal spot picture on graticle, can easily it be adjusted to the graticle center.Travelling workpiece makes it aim at the center of graticle again, has so just realized the location of workpiece to laser.Simultaneously, for the shooting thing and the distance between graticle that make this device adjustable, in the focal depth range of the depth of field of imaging lens and focus lamp, adjust the distance between imaging lens and graticle, take into account the difference of the two, when making the picture of surface of the work clear, laser spot also drops on the surface of the work.Like this, add man-hour as long as the adjustment of surface of the work picture has been known, laser focusing process is just finished.
Imaging lens is identical with the focal length of focus lamp, constitutes balanced system.Graticle is a measuring reticle.And surface of the work is vertical with the focus lamp optical axis, and what machining element generated similarly is the orthographic projection of the real shape of reflection.Therefore, on display directly reading with regard to the size of energy measurement machining element.
Superiority of the present utility model is, it and laser condensing lens are formed a complete camera system, through ccd video camera, display, can be conveniently positioned, focusing, observation and on-line measurement, and the variable observation that can satisfy different enlargement ratios of enlargement ratio.
Description of drawings
The accompanying drawing that the utility model provides:
The optics of coaxial demonstration of Fig. 1 and location survey becomes times structure drawing of device;
Fig. 2 is the picture of measuring reticle on indicator screen;
Fig. 3 is the profile of ring flange along the A-A line;
Fig. 4 is the profile of ring flange along the B-B line;
Fig. 5 is horizontal mounting structure figure;
Fig. 6 is the profile of support ring along the C-C line.
Describe structure of the present utility model and duty in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, coaxial demonstration, location, measurement optical zoom apparatus are by imaging lens 13, branch Drawing plate 9 forms with varifocal mirror group 6. They are mounted respectively in lens barrel 12,10 and 7 separately. Trinocular tube links to each other in twos with screw thread, and cover has knurled nut 11 on the shell of the lens barrel 10 of graticle 9, In this device upper end a connection piece 2 is arranged, the screw thread on it is connected with screw on the ccd video camera, This device and ccd video camera are coupled together.
In the vertical mounting means, there is a ring flange this device lower end. Utilize the screw 15 on the ring flange This device is installed on the support 14 of-45 ° of speculum 19 tops.
In the horizontal mounting means (Fig. 5), this device is installed in two support rings 23. Dress on the ring Extension spring 24 is arranged, and it holds up this device. On each ring orthogonal two annular knurl spiral shells are housed Nail 25 is in order to regulate the radial position of this device. Image rotation reflection image 22 is installed on the support 14.
Connector 2 rotates ccd video camera relatively, and the division line of graticle 9 is clearly shown On display, video camera is tightened annular knurl handwheel 3 relatively then, with fastening. Connector 2 and zoom 7 of the lens barrels of mirror group 6 are continuous with screw 4. Three cannelures 5 are arranged on the ring flange of lens barrel 7. Pine Moving screw 4, relative lens barrel 7 rotating connectors 2 are to adjust the direction of graduation on indicator screen. Lens barrel 7 moves radially connector 2 to adjust the position of division line on indicator screen relatively. Adjust After, screw 4 is tightened. After adjustment is finished, demonstration such as Fig. 2 institute of division line on indicator screen Show.
Embodiment
According to the utility model implementation method, in debug process, the optical axis of focus lamp 20 is coaxial with laser beam axis, and with the light shaft coaxle of focus lamp 20.
Three adjustment screw 16 are arranged on the ring flange of lens barrel 12.In the light modulation process, if the focal spot that laser line focus mirror 20 forms then can be adjusted by screw 16 not at the center of graticle 9.Unclamp attachment screw 15, adjust screw 16 (in horizontal mounting means, adjusting the milled screw 25 of imaging lens 13 these ends),, just can easily adjust to the picture of laser focal spot the center of graticle 9 to regulate the inclination angle of this device and focus lamp 20 optical axises.On the ring flange of lens barrel 12, also have three cannelures 18, allow this to install and rotates, with the direction of the relative graticle 9 of picture of adjustment surface of the work 21 relative to focus lamp 20.
Graticle 9 is positioned on the focal plane, picture side of imaging lens 13.Because optical maser wavelength (1064nm) is different with visible wavelength, when the picture of surface of the work 21 clearly appeared on the graticle 9, laser spot did not just in time drop on the surface 21 of workpiece.At this moment, unclamp knurled nut 11, relatively lens barrel 12 rotates lens barrel 10, it is poor to adjust the two the image distance that causes because of wavelength, and when making laser focus on the surface of the work 21, the picture of surface of the work 21 also is a lizard clearly.Tighten knurled nut 11 then.
Imaging lens 13 equates with the focal length of focus lamp 20, and is symmetrical structure.Surface of the work 21 is perpendicular to optical axis.The picture of surface of the work 21 on graticle 9 equates with material object.Varifocal mirror group 6 is presented on them on the display with ccd video camera.Therefore on display, just can directly measure the actual size of machining element.
Claims (5)
1, a kind of coaxial demonstration of Laser Processing and optics change times device of location survey of being used for, it is at least by an imaging lens, graticle, varifocal mirror group and reflector elements are formed, it is characterized in that imaging lens (13), graticle (9) and varifocal mirror group (6), be installed on mirror letter (12) separately respectively, (10) with (7) in, trinocular tube links to each other in twos with screw thread, be with knurled nut (11) on the shell of the lens barrel (10) of graticle (9), in this device upper end a connection piece (2) is arranged, screw thread on it is connected with screw on the ccd video camera, in the lens barrel (12) of the lower end of this device imaging lens (13), a ring flange (18) is arranged, and utilize screw (15) on the ring flange (18), (16) this device is installed on the support (14) of-45 ° of speculums (19) top, is provided with focus lamp (20) in the below of-45 ° of speculums (19).
2, a kind of coaxial demonstration of Laser Processing and optics change times device of location survey of being used for according to claim 1 is characterized in that:
Tilt adjustable between a, imaging lens (13) and focus lamp (20) optical axis;
Spacing between b, imaging lens (13) and the graticle (9) is adjustable;
Between the lens barrel (7) of c, varifocal mirror group (6) and the ccd video camera axially, radial position is adjustable, and can relatively rotate;
D, machining element can directly be measured with graticle (9) on indicator screen.
3, a kind of coaxial demonstration of Laser Processing and optics change times device of location survey of being used for according to claim 1, it is characterized in that imaging lens (13) has identical focal length with focus lamp (20), constitute balanced system, the optical axis of focus lamp (20) is perpendicular to surface of the work (21).
4, a kind of coaxial demonstration of Laser Processing and optics change times device of location survey of being used for according to claim 1 is characterized in that ring flange (5) and (18) in lens barrel (7) and the lens barrel (12) are provided with three cannelures.
5, a kind of coaxial demonstration of Laser Processing and optics change times device of location survey of being used for according to claim 1, it is characterized in that imaging lens (13), graticle (9) varifocal mirror group (6) is in horizontal type structure, support by two support rings (23), support ring is provided with extension spring (24) and adjustment screw (25), make this device and speculum (19) be vertical 90 ° of right angles, and one 45 ° reflection surveillance mirrors are set, this device is connected as a single entity at place, 90 ° of right angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228382 CN2535180Y (en) | 2002-02-07 | 2002-02-07 | Optical zoom apparatus of coaxial display and location measurement for laser processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228382 CN2535180Y (en) | 2002-02-07 | 2002-02-07 | Optical zoom apparatus of coaxial display and location measurement for laser processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2535180Y true CN2535180Y (en) | 2003-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02228382 Expired - Fee Related CN2535180Y (en) | 2002-02-07 | 2002-02-07 | Optical zoom apparatus of coaxial display and location measurement for laser processing |
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| Country | Link |
|---|---|
| CN (1) | CN2535180Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856773A (en) * | 2010-04-22 | 2010-10-13 | 广州中国科学院工业技术研究院 | Focusing positioning method based on initial laser processing position and laser processing device |
| CN102004390A (en) * | 2009-08-28 | 2011-04-06 | 鸿富锦精密工业（深圳）有限公司 | Lens module detection system and detection method thereof |
| CN101833304B (en) * | 2009-03-10 | 2011-08-10 | 北京信息科技大学 | Method for measuring positioning accuracy of numerical control rotary table by using photoelectric auto-collimator |
| CN102517579A (en) * | 2012-01-09 | 2012-06-27 | 苏州大学 | Laser processing apparatus and monitoring method |
| CN112504632A (en) * | 2020-11-08 | 2021-03-16 | 中国航空工业集团公司洛阳电光设备研究所 | Thermal focus measuring device based on internal focusing collimator |
-
2002
- 2002-02-07 CN CN 02228382 patent/CN2535180Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833304B (en) * | 2009-03-10 | 2011-08-10 | 北京信息科技大学 | Method for measuring positioning accuracy of numerical control rotary table by using photoelectric auto-collimator |
| CN102004390A (en) * | 2009-08-28 | 2011-04-06 | 鸿富锦精密工业（深圳）有限公司 | Lens module detection system and detection method thereof |
| CN101856773A (en) * | 2010-04-22 | 2010-10-13 | 广州中国科学院工业技术研究院 | Focusing positioning method based on initial laser processing position and laser processing device |
| CN101856773B (en) * | 2010-04-22 | 2012-08-22 | 广州中国科学院工业技术研究院 | Focusing positioning method based on initial laser processing position and laser processing device |
| CN102517579A (en) * | 2012-01-09 | 2012-06-27 | 苏州大学 | Laser processing apparatus and monitoring method |
| CN112504632A (en) * | 2020-11-08 | 2021-03-16 | 中国航空工业集团公司洛阳电光设备研究所 | Thermal focus measuring device based on internal focusing collimator |
| CN112504632B (en) * | 2020-11-08 | 2023-09-19 | 中国航空工业集团公司洛阳电光设备研究所 | Hot focal length measuring device based on interior focusing collimator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |