CN214333823U

CN214333823U - Correcting device for adjusting error of optical centering device of base

Info

Publication number: CN214333823U
Application number: CN202120604839.1U
Authority: CN
Inventors: 黄晶晶; 路雄; 陶茂盛; 黄智�; 王文涛
Original assignee: No2 Monitoring Centre Of China Seismological Bureau
Current assignee: No2 Monitoring Centre Of China Seismological Bureau
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-10-01
Anticipated expiration: 2031-03-23

Abstract

The utility model provides a pair of a correcting unit for adjusting base optics centralizer error, including the main part case, the main part incasement is provided with the light path unit, be provided with centering mark adjustment workstation and base frame on the main part case. The utility model has the advantages that: the correction difficulty is reduced, the number of correction personnel is reduced, and the working efficiency is further improved.

Description

Correcting device for adjusting error of optical centering device of base

Technical Field

The utility model relates to a surveying instrument measures technical field, specifically is a correcting unit for adjusting base optics centralizer error.

Background

Theodolite, total station and GPS receiver are used as conventional precision measuring instruments, widely applied to military affairs, buildings and other fields, and the same or different instruments need to be erected at the same origin for many times in the measuring process. In order to ensure the quality of observation data, the secondary positioning precision of the surveying and mapping origin should meet corresponding technical requirements, wherein the centering error of the optical centering device of the instrument base is an important factor influencing the secondary positioning precision index, and the requirement on the precision of the optical centering device of the base has extremely important significance. These accuracy indicators, called nominal accuracy, are given when the instrument leaves the factory. Nominal accuracy is a statistical concept relative to a batch of instruments of the same specification, and the actual accuracy of one instrument may differ from the nominal accuracy. In addition, after the instrument is used for a period of time, parameters such as the coaxiality and the optical path of the instrument are changed along with the instrument. Therefore, the base of the surveying instrument in use also needs to be checked and calibrated frequently, so that a user can master the working state of the instrument in time, and the quality of observed data is ensured.

According to the technical requirements of 5.7 and 7.3.9 in the conventional verification regulation JJG 414-2011 optical theodolite and 4.10 in the conventional JJG 100-2003 total station type electronic tacheometer, the optical centering device needs to be accurately aligned with the cross center of the centering mark (figure 2) below the instrument base when the calibration and correction are carried out. The distance between the optical centering device and the centering mark is required to be larger than 1.5m when the optical centering device of the base is corrected, so that the currently adopted correction mode is that two correction personnel are matched, the base is erected on a tripod, and the centering mark is placed on the ground to meet the distance requirement of the verification regulation, wherein one correction personnel observes the relative position of the cross center of the optical centering device and the cross center of the centering mark through an eyepiece of the optical centering device of the base, and the other correction personnel continuously adjusts the position of the centering mark under the command of a sighting personnel to ensure that the cross centers of the two correction personnel are mutually overlapped. This kind of operating mode greatly influences correctors's work efficiency, and then causes the harmful effects to examination efficiency.

Therefore, how to directly aim the target and move the centering mark by one operator is the key for improving the centering device correction efficiency and the centering device correction quality.

SUMMERY OF THE UTILITY MODEL

For solving this technical defect among the prior art, the utility model provides a pair of a correcting unit for adjusting base optics centralizer error, including the main part case, the main part incasement is provided with the light path unit, be provided with centering mark adjustment workstation and base frame on the main part case.

Further, the light path unit is a set of triangular prism box of fixed setting in main part bottom of the case portion, triangular prism box inclines respectively and is provided with the triangular prism, be provided with on the triangular prism box and be used for adjusting triangular prism inclination's triangular prism adjusting screw.

Furthermore, the centering mark adjusting workbench comprises a rotating table, an X-axis moving track, a Y-axis moving table and a centering mark box.

Furthermore, the rotating table comprises a bearing seat, a thrust ball bearing, a connecting hollow pipe and a rotating disc, and a positioning bolt is arranged on the side wall of the bearing seat.

Furthermore, the X-axis motion track comprises a support and a threaded rod, the support is fixed on the rotating disc, and an adjusting rod is arranged at one end of the threaded rod.

Furthermore, the Y-axis motion platform comprises a Y-axis motion track, an upper platform and a lower platform, and the lower platform is fixedly connected to the threaded rod through a connecting rod.

Further, the centering mark box is arranged at the top of the upper platform, and a centering mark is arranged in the centering mark box.

Further, the base frame comprises an upper table top and a lower table top.

To sum up, the beneficial effects of the utility model include:

the light path is adjusted through the prism, the adjusting distance between an eyepiece of the base optical centering device and a centering mark is shortened under the requirement of ensuring the distance of the corrected light path, so that the correcting difficulty is reduced, the number of correcting personnel is reduced, and the working efficiency is further improved.

Secondly, through setting up the revolving stage, corrected the image and passed through the lens and formed the inverted image, made the problem that centering mark actual motion direction is opposite with formation of image motion direction.

And the position of the centering mark can be accurately moved by arranging the X-axis motion track and the Y-axis motion table, so that the problem that the position of the centering mark is easily adjusted excessively or the adjusting distance is insufficient when the position is adjusted is solved, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic view of a centering mark according to a first embodiment of the present invention;

in the figure, a main body case 1, a light path unit 2, a centering index adjustment table 3, a base frame 4, a triangular prism box 21, a triangular prism 22, a triangular prism adjusting screw 23, a rotating table 31, an X-axis moving rail 32, a Y-axis moving table 33, a centering index box 34, a bearing seat 311, a thrust ball bearing 312, a connecting hollow tube 313, a rotating disc 314, a positioning bolt 315, a bracket 321, a threaded rod 322, an adjusting rod 323, a Y-axis moving rail 331, an upper platform 332, a lower platform 333, a centering index 341, and a light hole 5.

Detailed Description

The invention is further explained with reference to the drawings, without limiting the scope of protection of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows: referring to fig. 1-2, the utility model provides a pair of a correcting unit for adjusting base optics centralizer error, including main part case 1, be provided with light path unit 2 in the main part case 1, be provided with centering mark adjustment workstation 3 and pedestal 4 on the main part case 1.

Further, light path unit 2 is a set of triangular prism box 21 for fixed setting in main part case 1 bottom, triangular prism box 21 inclines respectively and is provided with triangular prism 22, be provided with on the triangular prism box 21 and be used for adjusting triangular prism 22 inclination's triangular prism adjusting screw 23.

Further, the centering index adjustment table 3 includes a rotating table 31, an X-axis movement rail 32, a Y-axis movement table 33, and a centering index box 34.

Further, the rotating table 31 comprises a bearing seat 311, a thrust ball bearing 312, a connecting hollow pipe 313 and a rotating disc 314, and a positioning bolt 315 is arranged on the side wall of the bearing seat 311.

Further, the X-axis moving track 32 includes a bracket 321 and a threaded rod 322, the bracket 321 is fixed on the rotating disc 314, and an adjusting rod 323 is disposed at one end of the threaded rod 322.

Further, the Y-axis moving stage 33 includes a Y-axis moving track 331, an upper platform 332, and a lower platform 333, and the lower platform 333 is fixedly connected to the threaded rod 322 by a connecting rod.

Further, the structure of the Y-axis movement path 331 is the same as that of the X-axis movement path 32.

Further, the centering box 34 is disposed on top of the upper platform 332, and a centering mark 341 is disposed in the centering box 34.

Further, the base frame 4 includes an upper table surface and a lower table surface.

Further, pedestal 4 includes two upper and lower mesas, and its lower mesa is fixed on main part case 1, and main part case 1, centering sign adjustment workstation 3 and pedestal 4 all are provided with the light trap.

When the optical centering device is used, the optical centering device to be corrected is spirally arranged on the upper table top of the base frame by using the center, the base is leveled by using the three angle spirals on the base, and the focal length of the ocular lens is adjusted so that a corrector can clearly see the cross wire in the optical centering device;

adjusting an objective lens of the optical centering device of the base to enable a corrector to clearly observe the centering mark;

the Y-axis moving table 33 is enabled to move integrally along the X-axis moving track 32 through the adjusting rod 323, meanwhile, the Y-axis moving table 33 is adjusted to enable the centering mark box 34 to move along the Y-axis direction, the cross center of the centering mark 341 and the cross wire in the ocular lens of the base optical centering device are enabled to be overlapped with each other, if the actual adjusting direction is opposite to the moving direction observed in the ocular lens, the positioning bolt 315 can be loosened, and the rotating table 31 is rotated until the adjusting direction is consistent with the observing direction of the ocular lens.

Rotating the optical centralizer on the base by 180 degrees, observing the relative position of the cross wire of the optical centralizer and the cross center of the centering mark 341, adjusting the adjusting screw on the optical centralizer by using the change pin, and adjusting the position of the cross wire of the optical centralizer to be half of the observed deviation amount; the rotating table 31, the X-axis moving track 32 and the Y-axis moving table 33 are adjusted to make the cross center of the centering mark 341 coincide with the cross wire of the optical centering device again. This is repeated until the optical centralizer is rotated 180 °, half of the deviation between the cross center of the centering mark 341 and the cross wire of the optical centralizer is less than 1mm, and the above operation is repeated 3 times to take an average value.

The centering mark 341 is installed inside the centering mark box, and the direction of the centering mark is downward.

To sum up, the beneficial effects of the utility model include:

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned. Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a correcting unit for adjusting base optics centralizer error, includes main part case (1), its characterized in that, be provided with light path unit (2) in main part case (1), be provided with centering mark adjustment workstation (3) and base frame (4) on main part case (1).

2. The device for adjusting the error of the optical centering device of the base as claimed in claim 1, wherein the optical path unit (2) is a set of triangular prism boxes (21) fixedly arranged at the bottom of the main body box (1), the triangular prism boxes (21) are respectively provided with triangular prisms (22) in an inclined manner, and the triangular prism boxes (21) are provided with triangular prism adjusting screws (23) for adjusting the inclination angles of the triangular prisms (22).

3. A correction device for adjusting the error of a base optical centralizer according to claim 1, characterized in that the centering index adjustment table (3) includes a rotation table (31), an X-axis movement track (32), a Y-axis movement table (33) and a centering index box (34).

4. A correction device for adjusting the error of a base optical centralizer according to claim 3, characterized in that the rotating table (31) comprises a bearing seat (311), a thrust ball bearing (312), a connecting hollow pipe (313) and a rotating disc (314), and a positioning bolt (315) is arranged on the side wall of the bearing seat (311).

5. A correction device for adjusting error of base optical centralizer according to claim 4, characterized in that the X-axis moving track (32) comprises a bracket (321), a threaded rod (322), the bracket (321) is fixed on the rotary disk (314), one end of the threaded rod (322) is provided with an adjusting rod (323).

6. A correction device for adjusting the error of a base optical centralizer according to claim 5, characterized in that the Y-axis moving table (33) comprises a Y-axis moving track (331), an upper platform (332) and a lower platform (333), the lower platform (333) is fixedly connected to the threaded rod (322) through a connecting rod.

7. A correction device for adjusting the error of a base optical centralizer according to claim 6, characterized in that the centering flag box (34) is arranged on top of the upper platform (332), and a centering flag (341) is arranged in the centering flag box (34).

8. A correction device for adjusting the error of a base optical centralizer according to claim 1, characterized in that the base frame (4) comprises two upper and lower mesas.