CN115307579A - Perpendicularity error detection device for pitch axis and azimuth axis of laser tracker - Google Patents

Perpendicularity error detection device for pitch axis and azimuth axis of laser tracker Download PDF

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Publication number
CN115307579A
CN115307579A CN202211029150.6A CN202211029150A CN115307579A CN 115307579 A CN115307579 A CN 115307579A CN 202211029150 A CN202211029150 A CN 202211029150A CN 115307579 A CN115307579 A CN 115307579A
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China
Prior art keywords
rod
axis
laser tracker
cylinder
cylindrical
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Pending
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CN202211029150.6A
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Chinese (zh)
Inventor
王珊
张滋黎
孟繁昌
纪荣祎
王国名
崔成君
潘映伶
张佳
董登峰
周维虎
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Institute of Microelectronics of CAS
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Institute of Microelectronics of CAS
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Priority to CN202211029150.6A priority Critical patent/CN115307579A/en
Publication of CN115307579A publication Critical patent/CN115307579A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/26Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C25/00Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The utility model provides a straightness error detection device that hangs down of laser tracker every single move axle and azimuth axis includes: the system comprises a first cylinder detection rod, a second cylinder detection rod and a projection image measuring instrument; the first cylinder detection rod and the second cylinder detection rod are respectively arranged on the pitching shafts on two sides of the laser tracker; the projection image measuring instrument includes: the first cylinder rod is arranged between the emitter and the receiver; the emitter is used for emitting LED light to the first cylindrical detection rod, and the receiver is used for displaying a light shadow formed after the LED light is partially shielded by the first cylindrical detection rod or the second cylindrical detection rod so as to obtain the central axis positions of the first cylindrical detection rod and the second cylindrical detection rod; and obtaining the perpendicularity error of the pitching axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod and the second cylinder detection rod and the distance of the detection end faces. The disclosure also provides a perpendicularity error detection method of the pitch axis and the azimuth axis of the laser tracker.

Description

Perpendicularity error detection device for pitch axis and azimuth axis of laser tracker
Technical Field
The disclosure relates to the field of instrument measurement and calibration, in particular to a perpendicularity error detection device and a perpendicularity error detection method for a pitch axis and an azimuth axis of a laser tracker.
Background
The laser tracker is a novel large-size space measuring instrument and is widely applied to the manufacturing field of large-size equipment such as aerospace, energy machinery, large scientific devices and the like.
At present, few manufacturers of laser trackers are used in China, and related technical patents and literature reports of a method for detecting and adjusting geometric structure errors of the trackers are limited. Some documents or patents have studied methods and apparatuses for calibrating perpendicularity of a pitch axis and an azimuth axis of a laser tracker and errors of perpendicularity and intersection of an optical axis and the azimuth axis. In the geometry of a laser tracker, the pitch and azimuth axes are the key axes of the tracker. The pitching axis, the azimuth axis and the optical axis three axes need to be intersected and vertical to each other, the azimuth axis can bear the tracking head to rotate in the horizontal direction, the pitching axis can rotate the tracking head in the vertical direction, and the pitching axis and the azimuth axis jointly act to enable the tracker to rotate in a three-dimensional space in a measurement space. The azimuth axis and the pitch axis of the tracker should intersect and be perpendicular under ideal conditions, but due to machining and adjusting errors of a mechanical structure, the pitch axis and the azimuth axis of the tracker are not perpendicular, namely, the pitch axis and the azimuth axis incline to each other to form a certain included angle, the inclined included angle is called as a verticality error of the pitch axis and the azimuth axis, and the error enables a light beam of the tracker to deviate from an ideal position, so that a measurement error is generated.
Therefore, a high-precision detection means needs to be researched to detect the perpendicularity error of the pitch axis and the azimuth axis of the tracker, so that the accurate adjustment and error correction of the axis system of the tracker are facilitated.
Disclosure of Invention
In order to solve the above problems in the prior art, the present disclosure provides a device for detecting a perpendicularity error between a pitch axis and an azimuth axis of a laser tracker, and aims to provide a detection device and a detection method for extracting an axis position of the pitch axis of the laser tracker, which are capable of non-contact measurement, simple and convenient operation, and high accuracy.
A first aspect of the present disclosure provides a perpendicularity error detecting device of a pitch axis and an azimuth axis of a laser tracker, including: the system comprises a first cylindrical detection rod, a second cylindrical detection rod and a projection image measuring instrument; the first cylinder detection rod and the second cylinder detection rod are respectively arranged on the pitching shafts on two sides of the laser tracker; the projection image measuring instrument includes: the device comprises a transmitter and a receiver, wherein a first cylindrical check rod is arranged between the transmitter and the receiver; the emitter is used for emitting LED light to the first cylindrical detection rod, and the receiver is used for displaying a light shadow formed after the LED light is partially shielded by the first cylindrical detection rod or the second cylindrical detection rod so as to obtain the positions of the central axes of the first cylindrical detection rod and the second cylindrical detection rod; and obtaining the perpendicularity error of the pitching axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod and the second cylinder detection rod and the distance of the detection end faces.
Furthermore, the first cylinder detection rod and the second cylinder detection rod are respectively connected with the end surfaces of the pitching shafts on the two sides of the laser tracker through the adapter; the adapter is used for adjusting the orientation of the first cylinder rod and/or the second cylinder rod.
Further, the distance between the detection end faces is the distance between the detection end face of the first cylinder detection rod and the detection end face of the second cylinder detection rod.
Further, the vertical reference line and the horizontal reference line of the receiver are kept unchanged all the time during the detection process of the detection device.
Furthermore, the first cylindrical rod and the second cylindrical rod have the same diameter.
Further, still include: the first support frame is used for fixedly supporting the emitter; and the second support frame is used for fixedly supporting the receiver.
Further, the emitter emits LED light perpendicular to the laser tracker pitch axis.
Further, the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker satisfies the following relationship:
θ=arctan(|A-B|/CD)
wherein, theta represents the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker; a represents a numerical value corresponding to the central axis position of the first cylindrical detection rod; b represents a numerical value corresponding to the central axis position of the second cylindrical check rod; CD represents the detection end face distance.
A second aspect of the present disclosure provides a perpendicularity error detection method of a pitch axis and an azimuth axis of a laser tracker, including: installing a first cylinder detection rod and a second cylinder detection rod in the verticality error detection device of the pitching axis and the azimuth axis of the laser tracker provided by the first aspect of the disclosure on the pitching axes at two sides of the laser tracker, and arranging the first cylinder detection rod between a transmitter and a receiver; emitting LED light to the first cylindrical detection rod by using the emitter so that the receiver displays a light shadow formed after the LED light is partially shielded by the first cylindrical detection rod, and obtaining the central axis position of the first cylindrical detection rod; rotating the laser tracker by 180 degrees around the azimuth axis of the laser tracker so that the receiver displays a light shadow formed after the LED light is partially shielded by the second cylindrical detection rod, and obtaining the central axis position of the second cylindrical detection rod; and obtaining the perpendicularity error of the pitching axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod and the second cylinder detection rod and the distance of the detection end faces.
Further, the method also includes: through the displacement and the angle of adjusting first adaptor and/or second adaptor to adjust the position that stick and the stick was examined to first cylinder, make the first cylinder examine the central axis that stick and the stick was examined to the second cylinder and the central axis coincidence of laser tracker every single move axle.
Compared with the prior art, the method has the following beneficial effects:
(1) The perpendicularity error detection device of the pitch axis and the azimuth axis of the laser tracker can detect the perpendicularity of the pitch axis and the azimuth axis of the laser tracker through the coaxial cylindrical inspection rod and the projection image measuring instrument, is simple in measurement process, free of contact and high in measurement precision, and can meet the requirement for high-precision detection of the intersection error of the shafting of the laser tracker.
(2) The detection method is suitable for the shafting perpendicularity error detection precision of most two-dimensional rotary tables, and can meet the requirement of two-dimensional rotary table perpendicularity detection in precision assembly and detection.
Drawings
For a more complete understanding of the present disclosure and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
fig. 1 schematically illustrates a top view of a perpendicularity error detecting device of a pitch axis and an azimuth axis of a laser tracker of an embodiment of the present disclosure;
FIG. 2 schematically illustrates a left side view of a laser tracker pitch and azimuth axis perpendicularity error detection arrangement of an embodiment of the present disclosure;
FIG. 3 schematically illustrates a projection profile on a receiver of an embodiment of the disclosure;
FIG. 4 schematically illustrates a front view of a laser tracker pitch and azimuth axis perpendicularity error detection device of an embodiment of the present disclosure;
fig. 5 schematically illustrates an enlarged schematic view of the partial region O in fig. 4 according to an embodiment of the disclosure.
Detailed Description
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that these descriptions are illustrative only and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.
Fig. 1 schematically shows a top view of a perpendicularity error detection device of a pitch axis and an azimuth axis of a laser tracker of an embodiment of the present disclosure.
As shown in fig. 1, the perpendicularity error detecting device of the pitch axis and the azimuth axis of the laser tracker includes: a first cylindrical rod 5, a second cylindrical rod 6 and a projection image measuring instrument. Wherein, the first cylinder is examined stick 5 and the second cylinder is examined stick 6 and is set up respectively on the every single move axle 2 of 7 both sides of laser tracker. The projection image measuring instrument comprises a transmitter 10 and a receiver 11, wherein the first cylinder detection rod 5 is arranged between the transmitter 10 and the receiver 11 and is arranged in a non-contact way; the emitter 10 is used for emitting LED light to the first cylinder detection rod 5, and the receiver 11 is used for displaying a light shadow formed after the LED light is partially shielded by the first cylinder detection rod 5 or the second cylinder detection rod 6, so as to obtain the central axis positions of the first cylinder detection rod 5 and the second cylinder detection rod 6; and obtaining the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod 5 and the second cylinder detection rod 6 and the distance of the detection end faces.
In the embodiment of the present disclosure, the first cylinder detection rod 5 and the second cylinder detection rod 6 are oppositely disposed on the pitch axis 2 at two sides of the laser tracker 7. As shown in fig. 1, the first cylindrical detection rod 5 is arranged on the pitch axis 2 at the left side of the laser tracker 7, and the second cylindrical detection rod 6 is arranged on the pitch axis 2 at the right side of the laser tracker 7. It should be noted that the illustration shown in fig. 1 is merely an exemplary illustration and does not constitute a limitation of the first cylindrical dipstick 5 and the second cylindrical dipstick 6, for example: the second cylinder detection rod 6 can also be arranged on the pitching axis 2 on the left side of the laser tracker 7, the first cylinder detection rod 5 is arranged on the pitching axis 2 on the right side of the laser tracker 7, and the setting is carried out according to the position of the pitching axis 2 on the laser tracker 7, and the embodiment of the disclosure does not limit the position relationship of the first cylinder detection rod 5 and the second cylinder detection rod 6.
Specifically, a first cylinder detection rod 5 and a second cylinder detection rod 6 are respectively connected with the end surfaces of the pitching shafts 2 on two sides of the laser tracker 7 through adapters; wherein the adapter is used to adjust the orientation of the first cylindrical dipstick 5 and/or the second cylindrical dipstick 6. As shown in fig. 1, the first cylindrical rod 5 is connected with the end face 3 of the pitch shaft 2 through a first adapter 8, and the second cylindrical rod 6 is connected with the end face 4 of the pitch shaft 2 through a second adapter 9; and vice versa. In the embodiments of the present disclosure, it is preferred that the first cylindrical dipstick 5 and the second cylindrical dipstick 6 have the same diameter.
In the embodiment of the present disclosure, by adjusting the displacement and the angle of the first adapter 8 and/or the second adapter 9, the orientations of the first cylinder rod 5 and the second cylinder rod 6 can be adjusted, so that the central axes of the first cylinder rod 5 and the second cylinder rod 6 coincide with the central axis of the pitch axis 2 of the laser tracker 7.
As shown in fig. 2, the perpendicularity error detecting apparatus of the pitch axis and the azimuth axis of the laser tracker further includes: a first support frame 12 for fixedly supporting the transmitter 10; and a second support bracket 13 for fixedly supporting the receiver 11. In the embodiment of the present disclosure, the transmitter 10 and the receiver 11 of the projection image measuring instrument are fixed by the first support frame 12 and the second support frame 13, the first support frame 12, the second support frame 13 and the laser tracker 7 are mounted on the same measuring platform, and the transmitter 10 and the receiver 11 are adjusted so that the optical axes are aligned and the projection direction thereof is perpendicular to the pitch axis 2 of the laser tracker 7.
Specifically, the emitter 10 emits LED light onto the first cylindrical dipstick 5, and the LED light left after partial occlusion by the first cylindrical dipstick 5 forms a shadow portion of the dipstick on the receiver 11, as shown in fig. 3, wherein the vertical reference line 14 on the receiver 11 is perpendicular to the horizontal reference line 15 and remains constantly positioned. The central axis position 16 of the first cylindrical dipstick is read by the receiver 11, wherein the central axis position 16 is shown as a value a on the receiver 11. Note that the LED light emitted by the emitter 10 may be LED parallel light or the like.
In the embodiment of the present disclosure, by placing the first cylindrical dipstick 5 between the transmitter 10 and the receiver 11 of the projection image measuring apparatus, the position of the central axis of the first cylindrical dipstick 5 can be detected according to the shadow profile of the first cylindrical dipstick 5 on the receiver 11, and the contactless size measurement of the object to be measured can be completed.
Further, in order to detect the positional deviation of the central axes of the first cylindrical bar 5 and the second cylindrical bar 6, the laser tracker 7 is rotated by 180 ° about the azimuth axis 1, and then the projection image measuring apparatus detects the second cylindrical bar 6 at the other end of the laser tracker 7, as shown in fig. 4. The LED light is partially blocked by the second cylindrical dipstick 6 to form a shadow of the second cylindrical dipstick 6 on the receiver 11. The central axis position 17 of the second cylindrical dipstick 6 can also be read on the receiver 11, and the central axis position 17 displays a value B on the receiver 11, as shown in fig. 5. During the detection, the vertical reference line 14 and the horizontal reference line 15 on the receiver 11 are always kept unchanged.
And obtaining the perpendicularity error of a pitch axis and an azimuth axis of the laser tracker 7 according to the position deviation of the central axes of the first cylinder detection rod 5 and the second cylinder detection rod 6 and the detection end face distance, wherein the detection end face distance is the distance CD between the detection end face of the first cylinder detection rod 5 and the detection end face of the second cylinder detection rod 6. Therefore, the verticality error of the pitch axis and the azimuth axis of the laser tracker and the detection end face distance CD can specifically satisfy the following relation:
θ=arctan(|A-B|/CD)
wherein, theta represents the verticality error of the pitching axis and the azimuth axis of the laser tracker, A represents the numerical value corresponding to the central axis position of the first cylinder detection rod 5, B represents the numerical value corresponding to the central axis position of the second cylinder detection rod 6, and CD represents the distance of the detection end face.
In the embodiment of the disclosure, based on the actual assembly requirement of the laser tracker, the detection device based on the cylindrical inspection rod and the projection image measuring instrument is provided, the detection device is simple in measurement principle, non-contact in measurement, simple and convenient to operate and high in precision, the axis position of the pitching axis of the tracker can be conveniently extracted by using the online projection image measuring instrument, and a simple and effective new detection method can be provided for detecting the verticality of the pitching axis and the azimuth axis of the laser tracker.
The embodiment of the present disclosure further provides a method for detecting a perpendicularity error of a pitch axis and an azimuth axis of a laser tracker, where the method is implemented based on a device for detecting a perpendicularity error of a pitch axis and an azimuth axis of a laser tracker shown in fig. 1, and specifically includes: steps S101 to S104.
S101, a first cylinder detection rod 5 and a second cylinder detection rod 6 in the perpendicularity error detection device of the pitch axis and the azimuth axis of the laser tracker are installed on the pitch axis on two sides of the laser tracker, and the first cylinder detection rod 5 is arranged between a transmitter 10 and a receiver 11. In an embodiment of the present disclosure, the orientations of the first and second cylindrical dipsticks 5, 6 can be adjusted by adjusting the displacement and angle of the first and/or second adapters 8, 9 so that the central axes of the first and second cylindrical dipsticks 5, 6 coincide with the central axis of the pitch axis of the laser tracker.
S102, the emitter 10 is used for emitting LED light to the first cylinder detection rod 5, so that the receiver 11 displays a light shadow formed after the LED light is partially shielded by the first cylinder detection rod 5, the central axis position of the first cylinder detection rod 5 is obtained, and the central axis position of the first cylinder detection rod 5 is displayed as a numerical value A on the receiver 11.
And S103, rotating the laser tracker 7 by 180 degrees around the azimuth axis of the laser tracker, so that the receiver 11 displays the light shadow formed by the LED light partially shielded by the second cylindrical check rod 6, and obtaining the central axis position of the second cylindrical check rod 6, wherein the central axis position of the second cylindrical check rod 6 is displayed as a numerical value B on the receiver 11.
And S104, obtaining the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod 5 and the second cylinder detection rod 6 and the distance of the detection end faces.
It should be noted that the method is implemented based on the perpendicularity error detection device of the pitch axis and the azimuth axis of the laser tracker shown in fig. 1, and the specific structure and detection principle of the perpendicularity error detection device of the pitch axis and the azimuth axis of the laser tracker are shown in the above embodiments, and are not described in detail here.
Compared with the prior art, the method has the following beneficial effects:
(1) The perpendicularity error detection device of the pitch axis and the azimuth axis of the laser tracker can detect the perpendicularity of the pitch axis and the azimuth axis of the laser tracker through the coaxial cylindrical inspection rod and the projection image measuring instrument, is simple in measurement process, free of contact and high in measurement precision, and can meet the requirement for high-precision detection of the intersection error of the shafting of the laser tracker.
(2) The detection method is suitable for the shafting perpendicularity error detection precision of most two-dimensional rotary tables, and can meet the requirements of two-dimensional rotary table perpendicularity detection in precision assembly and detection.
While the disclosure has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive.
Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the disclosure can be made to the extent not expressly recited in the disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments of the present disclosure and/or the claims may be made without departing from the spirit and teachings of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.
While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.

Claims (10)

1. The utility model provides a straightness error detection device that hangs down of laser tracker every single move axle and azimuth axis which characterized in that includes:
a first cylindrical detection rod (5), a second cylindrical detection rod (6) and a projection image measuring instrument; wherein, the first and the second end of the pipe are connected with each other,
the first cylinder detection rod (5) and the second cylinder detection rod (6) are respectively arranged on the pitching shafts on two sides of the laser tracker;
the projection image measuring instrument includes: a transmitter (10) and a receiver (11), wherein the first cylindrical dipstick (5) is arranged between the transmitter (10) and the receiver (11);
wherein the emitter (10) is used for emitting LED light to the first cylinder check rod (5), and the receiver (11) is used for displaying a light shadow formed after the LED light is partially shielded by the first cylinder check rod (5) or the second cylinder check rod (6) so as to obtain the central axis positions of the first cylinder check rod (5) and the second cylinder check rod (6); and obtaining the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod (5) and the second cylinder detection rod (6) and the distance of the detection end face.
2. The verticality error detection device of the pitch axis and the azimuth axis of the laser tracker according to claim 1, wherein the first cylindrical detection rod (5) and the second cylindrical detection rod (6) are respectively connected with the end surfaces of the pitch axis at two sides of the laser tracker through adapters; wherein the adapter piece is used for adjusting the orientation of the first cylindrical rod (5) and/or the second cylindrical rod (6).
3. The apparatus for detecting perpendicularity error of a pitch axis and an azimuth axis of a laser tracker according to claim 1, wherein the detection end face distance is a distance between a detection end face of the first cylindrical bar (5) and a detection end face of the second cylindrical bar (6).
4. The laser tracker pitch axis and azimuth axis perpendicularity error detection apparatus according to claim 1, wherein a vertical reference line and a horizontal reference line of the receiver (11) are kept constant throughout a detection process by the detection apparatus.
5. The apparatus for detecting perpendicularity error of a pitch axis and an azimuth axis of a laser tracker according to claim 1, wherein the first cylindrical rod (5) and the second cylindrical rod (6) have the same diameter.
6. The apparatus for detecting perpendicularity error of a pitch axis and an azimuth axis of a laser tracker according to claim 1, characterized by further comprising:
a first support frame (12) for fixedly supporting the launcher (10);
a second support frame (13) for fixedly supporting the receiver (11).
7. The laser tracker pitch axis and azimuth axis perpendicularity error detecting device according to claim 6, wherein the LED light emitted by the emitter (10) is perpendicular to the laser tracker pitch axis.
8. The apparatus for detecting perpendicularity error of a pitch axis and an azimuth axis of a laser tracker according to claim 1, wherein the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker satisfies the following relationship:
θ=arctan(|A-B|/CD)
wherein theta represents the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker; a represents a numerical value corresponding to the central axis position of the first cylinder check rod (5); b represents a numerical value corresponding to the central axis position of the second cylindrical check rod (6); CD represents the detection end face distance.
9. A perpendicularity error detection method for a pitch axis and an azimuth axis of a laser tracker is characterized by comprising the following steps:
installing a first cylindrical rod (5) and a second cylindrical rod (6) of the device for detecting the perpendicularity error between the pitch axis and the azimuth axis of the laser tracker according to any one of claims 1 to 8 on the pitch axis on both sides of the laser tracker, and disposing the first cylindrical rod (5) between the transmitter (10) and the receiver (11);
emitting LED light to the first cylinder rod (5) by using the emitter (10), so that the receiver (11) displays a light shadow formed after the LED light is partially shielded by the first cylinder rod (5), and the central axis position of the first cylinder rod (5) is obtained;
rotating the laser tracker by 180 degrees around the azimuth axis of the laser tracker so that the receiver (11) displays a light shadow formed after the LED light is partially shielded by the second cylindrical check rod (6), and obtaining the position of the central axis of the second cylindrical check rod (6);
and obtaining the perpendicularity error of the pitch axis and the azimuth axis of the laser tracker according to the position deviation of the central axes of the first cylinder detection rod (5) and the second cylinder detection rod (6) and the distance of the detection end face.
10. The method of detecting perpendicularity error of a pitch axis and an azimuth axis of a laser tracker according to claim 9, further comprising:
the positions of the first cylinder detection rod (5) and the second cylinder detection rod (6) are adjusted by adjusting the displacement and the angle of the first adapter piece (8) and/or the second adapter piece (9), so that the central axes of the first cylinder detection rod (5) and the second cylinder detection rod (6) coincide with the central axis of the pitch axis of the laser tracker.
CN202211029150.6A 2022-08-25 2022-08-25 Perpendicularity error detection device for pitch axis and azimuth axis of laser tracker Pending CN115307579A (en)

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CN202211029150.6A CN115307579A (en) 2022-08-25 2022-08-25 Perpendicularity error detection device for pitch axis and azimuth axis of laser tracker

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Application Number Priority Date Filing Date Title
CN202211029150.6A CN115307579A (en) 2022-08-25 2022-08-25 Perpendicularity error detection device for pitch axis and azimuth axis of laser tracker

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117788558A (en) * 2024-02-26 2024-03-29 季华实验室 Cylinder central axis identification method and device, electronic equipment and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117788558A (en) * 2024-02-26 2024-03-29 季华实验室 Cylinder central axis identification method and device, electronic equipment and storage medium
CN117788558B (en) * 2024-02-26 2024-05-07 季华实验室 Cylinder central axis identification method and device, electronic equipment and storage medium

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