CN115032163A - High-precision laser perpendicularity calibration device - Google Patents
High-precision laser perpendicularity calibration device Download PDFInfo
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- CN115032163A CN115032163A CN202210750499.2A CN202210750499A CN115032163A CN 115032163 A CN115032163 A CN 115032163A CN 202210750499 A CN202210750499 A CN 202210750499A CN 115032163 A CN115032163 A CN 115032163A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
The invention discloses a high-precision laser perpendicularity calibrating device which comprises a supporting unit and a calibrating unit, wherein the supporting unit comprises a bottom frame, a connecting rib arranged on the bottom frame and an upper platform horizontally arranged at the upper end of the connecting rib; the adjusting unit, its including set up in adjust luminance on the upper mounting plate the platform, set up in adjust luminance a plurality of adjusting screw on the platform and cooperation are connected the disc on adjusting luminance the platform, the central point fixedly connected with steel ball of disc, the last fixedly connected with of steel ball connects the rope, connect the one end fixedly connected with weight that the rope extends to the underframe. The vertical calibration point is determined by utilizing the principle that the direction of gravity is always vertical downwards and matching with the high-precision level meter, the precision is high, the deviation of the calibration device caused by the unavoidable error of machining is effectively avoided, the reliability is high by confirming the vertical calibration point in the direction of gravity, the vertical calibration point is not interfered by factors such as mechanical abrasion and the like, and the vertical calibration point is not easy to be misaligned.
Description
Technical Field
The invention relates to the technical field of flue gas analysis, in particular to a high-precision laser perpendicularity calibrating device.
Background
In the smoke analysis industry, a method for measuring smoke components by using the principle of laser absorption spectroscopy is one of the mainstream detection means. The laser is used as a key device of a laser principle measuring instrument, and the verticality of the initial direction of the light path has great influence on the accuracy of the whole light path. At present, laser on-line analysis equipment on the market generally has pain spots which are inaccurate in measurement and difficult to adjust. Calibration of lasers has been an important research topic for those in the laser analysis instrumentation industry.
The conventional laser perpendicularity calibrating device at present in China has a small structure, and the calibrating method comprises the following steps: adjusting a screw on the laser to enable a laser spot to fall on the center of the light target, rotating the laser to enable the laser spot to be always unmoved on the center of the light target, and considering that the calibration is successful, the structure of the laser is shown in figure 1. Such a regulating device has the following disadvantages: the calibration length is too small, so that the verticality of the laser still meets the requirement under the condition of long optical path; the device has high assembly difficulty and cannot ensure that the center of the left light target is coaxial with the structural part; the device has short service life, and the precision is gradually reduced after the matching surface is worn after multiple use or assembly and disassembly.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the existing high-precision laser perpendicularity calibration device.
Therefore, the invention aims to provide a high-precision laser perpendicularity calibration device, which is convenient for perpendicularity adjustment of a laser.
In order to solve the technical problems, the invention provides the following technical scheme:
a high-precision verticality calibrating device for a laser comprises,
the supporting unit comprises a bottom frame, a connecting rib arranged on the bottom frame and an upper platform horizontally arranged at the upper end of the connecting rib;
the adjusting unit, its including set up in last platform of adjusting luminance, set up in adjust luminance a plurality of adjusting screw on the platform and the cooperation of adjusting luminance are connected the disc on the platform of adjusting luminance, the central point fixedly connected with steel ball of disc, the last fixedly connected with of steel ball connects the rope, connect the one end fixedly connected with weight that the rope extends to the underframe.
As a preferred scheme of the high-precision laser perpendicularity calibration device of the present invention, wherein: a plurality of adjusting screw and the platform screw-thread fit of adjusting light are connected, and set up on the upper mounting plate with adjusting screw matched with screw hole, adjusting screw's quantity is three, and is the even array distribution of annular.
As a preferred scheme of the high-precision laser perpendicularity calibration device of the present invention, wherein: each adjusting screw is provided with a spring, and the bottom end of the spring is abutted to the upper platform.
As a preferred scheme of the high-precision laser perpendicularity calibrating device of the present invention, wherein: still threaded connection has a plurality of supporting screw on the platform of adjusting luminance, the quantity of supporting screw is three, and is the even array distribution of annular.
As a preferred scheme of the high-precision laser perpendicularity calibration device of the present invention, wherein: the adjusting screws and the supporting screws are distributed around the dimming platform and are arranged in a pairwise staggered manner.
As a preferred scheme of the high-precision laser perpendicularity calibration device of the present invention, wherein: the heavy hammer is conical, and the conical tip of the heavy hammer faces downwards all the time. The weight is always vertically downward under the action of gravity.
As a preferred scheme of the high-precision laser perpendicularity calibration device of the present invention, wherein: the working principle of the calibration device is as follows:
a. the high-precision level meter is placed on the light adjusting platform, the adjusting screw is adjusted to level the upper surface of the light adjusting platform,
b. then, after the support screw is screwed, marking the position of the conical tip of the heavy hammer at the bottom of the bottom frame;
c. and then directly taking down the disc, taking down the heavy hammer and the connecting rope together, placing the laser at the original position of the disc, adjusting an adjusting screw on the laser to enable the laser light spot to fall at the hammer tip position of the heavy hammer marked previously, rotating the laser, keeping the light spot position unchanged, and considering that the calibration is successful.
The invention has the beneficial effects that:
1. compared with the conventional adjusting device, the stroke of the calibration light path is greatly increased, and the calibration requirement of the laser with long optical path can be met; the vertical calibration point is determined by utilizing the principle that the direction of gravity is always vertical and downward and matching with a high-precision level meter, the precision is high, the deviation of a calibration device caused by the unavoidable error of machining is effectively avoided, the reliability is high by confirming the vertical calibration point in the direction of gravity, the vertical calibration point is not interfered by factors such as mechanical abrasion and the like, and the vertical calibration point is not easy to be misaligned;
2. the device has simple structure, can meet the requirement without a special high-precision machining tool, has low machining and manufacturing cost and is easy to popularize.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic diagram of an overall structure of a high-precision laser perpendicularity calibration device according to the present invention.
Fig. 2 is a schematic top view of a high-precision laser perpendicularity calibration apparatus according to the present invention.
Fig. 3 is a schematic structural diagram of an adjusting unit of the high-precision laser perpendicularity calibrating device according to the present invention.
In the figure: 100-supporting unit, 101-bottom frame, 102-connecting rib, 103-upper platform, 200-adjusting unit, 201-dimming platform, 202-adjusting screw, 203-spring, 204-supporting screw, 205-steel ball, 206-disc, 207-connecting rope and 208-weight.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1 to 3, a high-precision laser perpendicularity calibrating apparatus according to a first embodiment of the present invention is provided, the apparatus including: a support unit 100 and an adjustment unit 200.
The supporting unit 100 includes a bottom frame 101, a connecting rib 102 disposed on the bottom frame 101, and an upper platform 103 horizontally disposed on the upper end of the connecting rib 102;
the adjusting unit 200 is including setting up the platform 201 of adjusting luminance on upper platform 103, set up a plurality of adjusting screw 202 on the platform 201 of adjusting luminance, and the cooperation is connected the disc 206 on the platform 201 of adjusting luminance, the central point fixedly connected with steel ball 205 of disc 206, the last fixedly connected with of steel ball 205 connects rope 207, connect the one end fixedly connected with weight 208 that rope 207 extends to underframe 101, upper platform 103 reserves the through-hole that weight 208 passed, weight 208 is conical, and conical awl point is down all the time, weight 208 is vertical down all the time under the effect of gravity.
A plurality of adjusting screw 202 and the platform 201 screw-thread fit connection of adjusting light, and set up on the upper mounting plate 103 with adjusting screw 202 matched with screw hole, adjusting screw 202's quantity is three, and be the even array distribution of annular, through place the spirit level on the platform 201 of adjusting light, then go to adjust two adjusting screw 202's height, whether ensure to adjust light platform 201 and keep the level, all be provided with spring 203 on every adjusting screw 202, and the bottom of spring 203 offsets with upper mounting plate 103, when rotatory adjusting screw 202, elastic compression takes place for spring 203, thereby increase adjusting screw 202's screw-thread fit frictional force, avoid becoming flexible.
Further, a plurality of support screws 204 are connected to the dimming platform 201 in a threaded manner, and the number of the support screws 204 is three and is distributed in an annular uniform array. After the horizontal adjustment is completed, the supporting screws 204 can be rotated to abut against the upper side of the dimming platform 201 to further support the dimming platform 201, and the plurality of adjusting screws 202 and the supporting screws 204 are distributed around the dimming platform 201 and are arranged in a staggered manner every two, so that the horizontal adjustment accuracy is better.
In the using process, firstly, the high-precision level meter is placed on the dimming platform 201, 3 adjusting screws 202 are adjusted to enable the upper surface of the dimming platform 201 to be horizontal, then, after the supporting screws 204 are screwed, the conical tip position of the heavy hammer 208 is marked at the bottom of the bottom frame 101, then, the disc 206 is directly taken down, at the moment, the heavy hammer 208 and the connecting rope 207 are taken down together, the laser is placed at the original position of the disc 206, the adjusting screws on the laser are adjusted, the laser light spot is enabled to fall at the hammer tip position of the heavy hammer 208 marked previously, the laser is rotated, the light spot position is unchanged, and the calibration is regarded as successful.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a laser instrument straightness calibrating device that hangs down of high accuracy which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the supporting unit (100) comprises a bottom frame (101), a connecting rib (102) arranged on the bottom frame (101), and an upper platform (103) horizontally arranged at the upper end of the connecting rib (102);
adjusting element (200), it including set up in last platform (103) of adjusting luminance (201), set up in adjust luminance a plurality of adjusting screw (202) on platform (201) and cooperation are connected disc (206) on platform (201) of adjusting luminance, the central point fixedly connected with steel ball (205) of disc (206), last fixedly connected with of steel ball (205) connects rope (207), connect rope (207) and extend to one end fixedly connected with weight (208) of underframe (101).
2. The high precision laser perpendicularity calibration device according to claim 1, wherein: a plurality of adjusting screw (202) and adjust luminance platform (201) screw-thread fit are connected, and offer on upper mounting plate (103) with adjusting screw (202) matched with screw hole, adjusting screw (202) are three in quantity, and are the even array distribution of annular.
3. The high-precision laser perpendicularity calibration device according to claim 2, wherein: each adjusting screw (202) is provided with a spring (203), and the bottom end of the spring (203) is propped against the upper platform (103).
4. A high precision laser perpendicularity calibration device according to any one of claim 3, wherein: still threaded connection has a plurality of supporting screw (204) on the platform of adjusting luminance (201), the quantity of supporting screw (204) is three, and is the even array distribution of annular.
5. The high precision laser perpendicularity calibration device according to claim 4, wherein: the adjusting screws (202) and the supporting screws (204) are distributed around the dimming platform (201) and are arranged in a staggered mode in pairs.
6. The high precision laser perpendicularity calibration device according to claim 5, wherein: the weight (208) is conical, and the conical tip of the weight is always downward.
7. The high precision laser perpendicularity calibration device according to claim 6, wherein: the working principle of the calibration device is as follows:
a. placing a high-precision level gauge on a dimming platform (201), and adjusting 3 adjusting screws (202) to level the upper surface of the dimming platform (201);
b. then, after the supporting screw (204) is screwed, marking the position of the conical tip of the heavy hammer (208) at the bottom of the bottom frame (101);
c. and then the disc (206) is directly taken down, the heavy hammer (208) and the connecting rope (207) are also taken down together, the laser is placed at the original position of the disc (206), the adjusting screw on the laser is adjusted, the laser light spot is made to fall on the previously marked hammer tip position of the heavy hammer (208), and the laser is rotated, so that the light spot position is unchanged, and the calibration is regarded as successful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210750499.2A CN115032163A (en) | 2022-06-28 | 2022-06-28 | High-precision laser perpendicularity calibration device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210750499.2A CN115032163A (en) | 2022-06-28 | 2022-06-28 | High-precision laser perpendicularity calibration device |
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| US4040752A (en) * | 1974-04-24 | 1977-08-09 | Essilor International (Compagnie Generale D'optique) | Laser unit with a laser beam automatically aligned to the vertical direction |
| CN1661326A (en) * | 2004-02-13 | 2005-08-31 | 布莱克和戴克公司 | Laser calibration apparatus and method |
| CN107462262A (en) * | 2017-08-30 | 2017-12-12 | 东莞欧达电子有限公司 | A kind of air level debugging apparatus of laser alignment equipment |
| CN208313321U (en) * | 2018-06-26 | 2019-01-01 | 郑州市质量技术监督检验测试中心 | A kind of image-type Laser Line Marker integrated correction device |
| CN210051511U (en) * | 2019-06-06 | 2020-02-11 | 上海佳可保自动控制系统有限公司 | Laser calibration device |
| CN110961779A (en) * | 2019-12-24 | 2020-04-07 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Cantilever type laser light path calibrating device |
| CN213163662U (en) * | 2020-09-14 | 2021-05-11 | 合肥市鑫仓工业设备科技有限公司 | Laser marking machine's laser instrument installation mechanism |
| CN214470923U (en) * | 2021-04-02 | 2021-10-22 | 许江涛 | A centering rod calibration device |
| CN114535784A (en) * | 2022-04-01 | 2022-05-27 | 广州铭拓光电科技有限公司 | Calibration device for flight light path of laser cutting machine and using method |
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2022
- 2022-06-28 CN CN202210750499.2A patent/CN115032163A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040752A (en) * | 1974-04-24 | 1977-08-09 | Essilor International (Compagnie Generale D'optique) | Laser unit with a laser beam automatically aligned to the vertical direction |
| US3936197A (en) * | 1974-05-06 | 1976-02-03 | Laser Alignment, Inc. | Self-leveling laser assembly |
| CN1661326A (en) * | 2004-02-13 | 2005-08-31 | 布莱克和戴克公司 | Laser calibration apparatus and method |
| CN107462262A (en) * | 2017-08-30 | 2017-12-12 | 东莞欧达电子有限公司 | A kind of air level debugging apparatus of laser alignment equipment |
| CN208313321U (en) * | 2018-06-26 | 2019-01-01 | 郑州市质量技术监督检验测试中心 | A kind of image-type Laser Line Marker integrated correction device |
| CN210051511U (en) * | 2019-06-06 | 2020-02-11 | 上海佳可保自动控制系统有限公司 | Laser calibration device |
| CN110961779A (en) * | 2019-12-24 | 2020-04-07 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Cantilever type laser light path calibrating device |
| CN213163662U (en) * | 2020-09-14 | 2021-05-11 | 合肥市鑫仓工业设备科技有限公司 | Laser marking machine's laser instrument installation mechanism |
| CN214470923U (en) * | 2021-04-02 | 2021-10-22 | 许江涛 | A centering rod calibration device |
| CN114535784A (en) * | 2022-04-01 | 2022-05-27 | 广州铭拓光电科技有限公司 | Calibration device for flight light path of laser cutting machine and using method |
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