CN203084272U - High-precision leveling device of right-angle reflecting prism ridge - Google Patents

High-precision leveling device of right-angle reflecting prism ridge Download PDF

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Publication number
CN203084272U
CN203084272U CN 201320069933 CN201320069933U CN203084272U CN 203084272 U CN203084272 U CN 203084272U CN 201320069933 CN201320069933 CN 201320069933 CN 201320069933 U CN201320069933 U CN 201320069933U CN 203084272 U CN203084272 U CN 203084272U
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China
Prior art keywords
reflecting prism
angle reflecting
rib ridge
air level
angle
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CN 201320069933
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Chinese (zh)
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白建明
赵军丽
吴易明
姚震
尹逊龙
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XiAn Institute of Optics and Precision Mechanics of CAS
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XiAn Institute of Optics and Precision Mechanics of CAS
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Abstract

The utility model provides a high-precision leveling device of a right-angle reflecting prism ridge. The device comprises a right-angle reflecting prism group, a pinboard, a manual control screw, a level bubble group, a magnetic stand and a pedestal possessing ferromagnetism. The right-angle reflecting prism group is formed by the right-angle reflecting prism to be leveled and an installation frame body used to fix the right-angle reflecting prism. The installation frame body is fixedly connected with the magnetic stand via the pinboard. The pinboard possesses a horizontal plane. The level bubble group is fixedly arranged on an upper surface of the horizontal plane. A lower surface of the horizontal plane is connected with the upper surface of the magnetic stand. The manual control screw passes through the horizontal plane and abuts against the upper surface of the magnetic stand. The magnetic stand is fixed with the pedestal through a magnetic force.

Description

A kind of right-angle reflecting prism rib ridge high precision levelling device
Technical field
The utility model relates to a kind of levelling device, specifically operates at quick, the high precision leveling of right-angle reflecting prism rib ridge.
Background technology
In the precision measurement field of measuring techniques, right-angle reflecting prism is used as relatively rotating the angle monitor element usually.In installation process, require its rib ridge vertical mutually, if promptly there is rib ridge non-perpendicularity in out of plumb with rotating spindle.Generally speaking, rotating spindle is the earth vertical pivot, and the perfect condition of rib ridge is a level, and therefore, rib ridge non-perpendicularity is called the out-of-level degree of rib ridge again, is called for short rib ridge unevenness.When rib ridge unevenness is non-vanishing, relatively rotate the true rotational angle that angle information can not correctly reflect institute's monitoring instrument or equipment by what right-angle reflecting prism was obtained.
For the measuring error that reduces as much as possible to bring because of right-angle reflecting prism rib ridge injustice, when design contains the instrument of right-angle reflecting prism or equipment, usually the structure more complicated needs roughness on the one hand and is not higher than 0.8 installation or places mechanical reference plane; On the other hand, the right-angle reflecting prism frame in the right-angle reflecting prism assembly will possess the direction regulatory function (design mounting hole or grinding picture frame installation base surface) of rib ridge.In addition, rib ridge direction adjustment equipment, the instrument many (one of autocollimation theodolite, one of crane, one of large scale level crossing, one of air level, metal plate hand or grinding plates) that need be equipped with.
Traditional scheme detects the rib ridge unevenness of right-angle reflecting prism, is to take aim at tiltedly to take aim at the orientation angle measurement that right-angle reflecting prism brings poor the counter unevenness value of releasing the rib ridge according to autocollimation theodolite is flat.It is little tiltedly to take aim at the angle, and measuring error is big, is that the lifting distance of autocollimation theodolite strengthens and increase the cost tiltedly take aim at the angle, and the width widen of right-angle reflecting prism is taken all factors into consideration, and the general oblique angle of taking aim at is got about 30 ° and is advisable.Autocollimation theodolite is put down and is taken aim at, tiltedly takes aim at the autocollimation theodolite jacking gear that needs supporting special use in the prism process, after lifting puts in place, autocollimation theodolite is leveling again, to produce leveling error, because the orientation easily changes, be by means of level crossing as azimuth reference, total autocollimatic least number of times is 4 times, repeatedly also can produce angle error, cause the precision of this kind measuring method to be no more than 20 from locating tab assembly ", revolve simultaneously rise jacking gear time-consuming, the effort.
Carinate attitude of rib of every monitoring, autocollimation theodolite will be carried out once flat aim at, tiltedly aim at right-angle reflecting prism, twice target plane mirror operation respectively.For kidney slot and grinding picture frame basal plane mounting means, the number of occurrence is many when all having adjustment, and has the risk of the rib ridge variation that brings because of vibration in the use.Simultaneously,, often require to distribute bigger physical space for the right-angle reflecting prism assembly, can't realize for compact type instrument or equipment in order to guarantee bigger installation contact area.
The utility model content
The purpose of this utility model is to propose a kind of right-angle reflecting prism rib ridge high precision levelling device and leveling method thereof, can't realize, high precision leveling quick to solve prior art to right-angle reflecting prism rib ridge, thereby the technical matters that can't carry out the correct monitoring that relatively rotates angle of instrument or equipment.
Technical solution of the present utility model is:
A kind of right-angle reflecting prism rib ridge high precision levelling device, comprise right-angle reflecting prism group, card extender, manual control screw, air level group, Magnetic gauge stand and have ferromagnetic pedestal that wherein the right-angle reflecting prism group is made up of the right-angle reflecting prism for the treatment of leveling and the installation framework that is used for fixing this right-angle reflecting prism; Framework is installed fixedlys connected with Magnetic gauge stand through card extender, card extender has a horizontal panel, described air level group is fixedly installed in this horizontal panel upper surface, this horizontal panel lower surface and Magnetic gauge stand upper surface join, described manual control screw runs through horizontal panel and butt Magnetic gauge stand upper surface, and Magnetic gauge stand is fixed by magnetic force and described pedestal.
Based on above-mentioned basic scheme, this levelling device is further optimized qualification and is improved as follows:
Above-mentioned installation framework comprises right-angle reflecting prism frame, front pressuring plate and a pair of side guide.Right-angle reflecting prism frame wherein need not to possess rib ridge levelness and adjusts structure, only satisfies the spatial form and the size of right-angle reflecting prism, and the mode of employing side pressure and preceding pressure is right-angle reflecting prism fixedly.
The set screw that above-mentioned air level group comprises air level and is used to regulate the horizontal indicating status of air level.
Above-mentioned air level is long bubble, and 1/3rd of air level scale value precision gets final product less than right-angle reflecting prism rib ridge unevenness degree of regulation and rib ridge unevenness accuracy of detection difference.
The screw head of above-mentioned set screw has the pin of dialling and inserts through hole.
Above-mentioned manual control screw has two, is arranged at the remote location of right-angle reflecting prism group on the horizontal panel.
The material of said base is 45 steel.This kind steel have ferromagnetism, and quality is heavy, degree of stability height when being placed on monitored instrument or the equipment.The material of right-angle reflecting prism frame, side guide, front pressuring plate and card extender is 2A12, takes into account light weight, the advantage that hardness is high.
Based on the above levelling device, the utility model provides concrete leveling method.This method may further comprise the steps:
1) adopts autocollimation theodolite to detect the rib ridge unevenness value α ' of right-angle reflecting prism, utilize and dial pin instrument rotation set screw, until the difference value of satisfying the demands α of the rib ridge unevenness α ' of the horizontality α of air level and right-angle reflecting prism 0', promptly Demarcation is finished;
2) calibrated right-angle reflecting prism rib ridge high precision levelling device is connected firmly on monitored instrument or equipment;
3) observe the horizontal indicating status of air level, not at ordinary times, by saving manual control screw with hand adjustment, until air level horizontality α in 1/3rd air level scale values;
4) at this moment, right-angle reflecting prism satisfies the requirement of rib ridge unevenness, can carry out the correct monitoring that relatively rotates angle of instrument or equipment.
Above-mentioned steps 2) levelling device is when connecting firmly with monitored instrument or equipment, and a kind of method is directly to lie on monitored instrument or the equipment by pedestal; Under the another kind of situation, if be reserved with the mounting plane that material is a ferromagnetic material on monitored instrument or the equipment, levelling device can remove its pedestal, is adsorbed on by its Magnetic gauge stand on the mounting plane of monitored instrument or equipment.Magnetic attraction is enough to guarantee the firm stable state installed, does not influence hand simultaneously again and twists manual control screw and change the carinate attitude of rib.
The utlity model has following advantage:
Use the utility model, right-angle reflecting prism rib ridge unevenness only need be measured once, does not need to be adjusted to abswolute level, and the horizontality of air level is adjusted to consistent the getting final product of rib ridge unevenness with right-angle reflecting prism.
This right-angle reflecting prism rib ridge high precision levelling device, used the magnetic force absorption principle, the right-angle reflecting prism device can be placed or be adsorbed on very convenient, quickly on the mounting plane of monitored instrument or equipment, hand is twisted power by the screw thread transmission, the convenient rib ridge horizontality that changes right-angle reflecting prism; Simultaneously, air level group and right-angle reflecting prism group connect firmly this structural design cleverly makes the horizontality of air level can characterize the unevenness situation of right-angle reflecting prism rib ridge, and at present, the scale value precision of air level is very high, can realize the high precision leveling of rib ridge.
Description of drawings
Fig. 1 is a device synoptic diagram of the present utility model;
Fig. 2 is the principle schematic of calibration process of the present utility model.
Drawing reference numeral explanation: 1-levelling device of the present utility model; 2-right-angle reflecting prism group; The 3-right-angle reflecting prism; The 4-prism frame; The 5-side guide; The 6-front pressuring plate; 7-air level group; The 8-air level; The 9-set screw; The 10-Magnetic gauge stand; The 11-card extender; The 12-manual control screw; The 13-pedestal; Monitored instrument of 14-or equipment; Monitored instrument of 15-or equipment ferromagnetism basal plane; The 16-autocollimator; 17-rhombic prism zero-bit state; 18-rhombic prism-22.5 ° state; 19-rhombic prism+22.5 ° state.
Embodiment
As shown in Figure 1, in the levelling device of the present utility model, right-angle reflecting prism group 2, air level group 7 and Magnetic gauge stand 10 connect firmly together by card extender 11, with hand adjustment joint manual control screw 12, by the screw thread transmission, can change the rib ridge horizontality of right-angle reflecting prism 3; With dialling pin rotation set screw 9, can change the horizontal indicating status of air level 8; Magnetic gauge stand 10 has demagnetization and excitation two states by switching knob, under the excited state, can be adsorbed on the ferromagnetic material pedestal 13.
Quick, the high precision leveling method of right-angle reflecting prism rib ridge of the present utility model may further comprise the steps:
1) as shown in Figure 2, the utility model is in the leveling process, and having used the single measurement error is 0.2 " autocollimation theodolite 16, the core parts in the rib ridge unevenness detector are rhombic prism 17.Can adopt the applicant from grinding rib ridge unevenness detector (can referring to Chinese patent ZL200910020843.7 " a kind of right-angle reflecting prism normal plane verticality detection method and device thereof ") in the calibration process, rib ridge non-planeness measurement precision height, can be controlled at 8 " in; it is simple to have measuring principle simultaneously, advantages such as processing ease.Right-angle reflecting prism device 1 is placed on the calibrating platform by pedestal 13, and when rhombic prism 17 was positioned at the vertical state, at first 16 pairs of right-angle reflecting prism 3 of autocollimation theodolite aimed at, record aiming indicating value Rhombic prism 17 is rotated counterclockwise 22.5 °, and when being positioned at state 18, light is through refracting to right-angle reflecting prism 3, and 16 pairs of right-angle reflecting prism 3 of autocollimator aim at, and record aiming indicating value Rhombic prism 17 Rotate 180 ° in surface level, during to state 19, autocollimator 16 aims at right-angle reflecting prism 3 again, and record aiming indicating value by state 18 Three measured values are calculated according to formula (1), promptly obtain the rib ridge unevenness value of right-angle reflecting prism 3:
α ′ = α 2 ′ + α 3 ′ 2 - α 1 ′ 0.463 - - - ( 1 )
2) the air level horizontality is consistent with rib ridge unevenness, and a left side is high right low for just.Rib ridge unevenness requirements is, utilizes and dials pin rotation set screw 9, and the horizontality that makes air level 9 is in the interval, and at this moment, right-angle reflecting prism device 1 is demarcated and finished;
When 3) using, right-angle prism device 1 is directly lain on monitored instrument or the equipment 14 by pedestal 13, if be reserved with material on monitored instrument or the equipment 14 is the mounting plane 15 of ferromagnetic material, right-angle prism device 1 can remove pedestal 13, is adsorbed on by Magnetic gauge stand 10 on the mounting plane 15 of monitored instrument or equipment 14;
4) observe the indicated horizontality of air level 8,,, in 1/3rd air level scale values, can carry out the correct monitoring that relatively rotates angle of instrument or equipment until air level 8 horizontalitys by with hand adjustment joint manual control screw 12 if uneven.
Certainly, for using the demarcation link that autocollimation theodolite carries out,, also can adopt other checkout equipments to realize demarcating, as long as possess certain precision except the rib ridge unevenness detector described in the present embodiment.
In the traditional scheme, when the right-angle reflecting prism conduct relatively rotates the use of angle monitor element, a general curing assembly as instrument or equipment.Before monitoring function is realized, all will carry out complicated demarcation testing, precision is the highest can only to reach 15 ".And the high precision levelling device that provides in employing the utility model, have only two error sources, one is the accuracy of detection of calibration measurements equipment, suppose that single is measured as 8 "; another is the horizontality error of air level; select 20 for use " the regular grade air level of precision, the reading accuracy of 1/3rd scale values can guarantee that measuring accuracy reaches 15 "; Repeatedly measure when rib ridge unevenness detector and to ask average, select more high-precision air level for use in addition, as 10 " air level the time; during the leveling precision of rib ridge can reach 6 " in, select 6 for use " air level, the leveling precision will be higher; simultaneously; it is simple that this device possesses measuring principle, processing ease, remarkable advantages such as efficient height.

Claims (7)

1. right-angle reflecting prism rib ridge high precision levelling device, it is characterized in that: comprise right-angle reflecting prism group, card extender, manual control screw, air level group, Magnetic gauge stand and have ferromagnetic pedestal that wherein the right-angle reflecting prism group is made up of the right-angle reflecting prism for the treatment of leveling and the installation framework that is used for fixing this right-angle reflecting prism; Framework is installed fixedlys connected with Magnetic gauge stand through card extender, card extender has a horizontal panel, described air level group is fixedly installed in this horizontal panel upper surface, this horizontal panel lower surface and Magnetic gauge stand upper surface join, described manual control screw runs through horizontal panel and butt Magnetic gauge stand upper surface, and Magnetic gauge stand is fixed by magnetic force and described pedestal.
2. right-angle reflecting prism rib ridge high precision levelling device according to claim 1, it is characterized in that: described installation framework comprises right-angle reflecting prism frame, front pressuring plate and a pair of side guide; Right-angle reflecting prism frame wherein satisfies the spatial form and the size of right-angle reflecting prism, and the mode of employing side pressure and preceding pressure is right-angle reflecting prism fixedly.
3. right-angle reflecting prism rib ridge high precision levelling device according to claim 1 is characterized in that: the set screw that described air level group comprises air level and is used to regulate the horizontal indicating status of air level.
4. right-angle reflecting prism rib ridge high precision levelling device according to claim 3, it is characterized in that: described air level is long bubble, air level scale value precision 1/3rd less than right-angle reflecting prism rib ridge unevenness degree of regulation and rib ridge unevenness accuracy of detection difference.
5. right-angle reflecting prism rib ridge high precision levelling device according to claim 3 is characterized in that: the screw head of described set screw has the pin of dialling and inserts through hole.
6. right-angle reflecting prism rib ridge high precision levelling device according to claim 1, it is characterized in that: described manual control screw has two, is arranged at the remote location of right-angle reflecting prism group on the horizontal panel.
7. right-angle reflecting prism rib ridge high precision levelling device according to claim 1, it is characterized in that: the material of described pedestal is 45 steel.
CN 201320069933 2013-02-06 2013-02-06 High-precision leveling device of right-angle reflecting prism ridge Active CN203084272U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103197400A (en) * 2013-02-06 2013-07-10 中国科学院西安光学精密机械研究所 Right-angle reflecting prism ridge high-precision leveling device and leveling method thereof
CN103453841A (en) * 2013-09-03 2013-12-18 广州建设工程质量安全检测中心有限公司 Target reflection prism device provided with magnetic base

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103197400A (en) * 2013-02-06 2013-07-10 中国科学院西安光学精密机械研究所 Right-angle reflecting prism ridge high-precision leveling device and leveling method thereof
CN103197400B (en) * 2013-02-06 2015-07-15 中国科学院西安光学精密机械研究所 Right-angle reflecting prism ridge high-precision leveling device and leveling method thereof
CN103453841A (en) * 2013-09-03 2013-12-18 广州建设工程质量安全检测中心有限公司 Target reflection prism device provided with magnetic base

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