CN112833289A - Laser tracking measurement rotation limiting mechanism - Google Patents
Laser tracking measurement rotation limiting mechanism Download PDFInfo
- Publication number
- CN112833289A CN112833289A CN202110019332.4A CN202110019332A CN112833289A CN 112833289 A CN112833289 A CN 112833289A CN 202110019332 A CN202110019332 A CN 202110019332A CN 112833289 A CN112833289 A CN 112833289A
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- China
- Prior art keywords
- laser tracking
- tracking measurement
- rotating head
- limiting
- rotating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
Abstract
The invention provides a laser tracking measurement rotation limiting mechanism which comprises a rotating part, a limiting groove part and a rotating head deflector rod part, wherein the rotating part comprises a base, a vertical shaft with a threading channel, a cable and a motor, the vertical shaft is rotatably connected with the base, the motor is connected with the vertical shaft and drives the vertical shaft to rotate, the cable penetrates through the threading channel of the vertical shaft, the vertical shaft is connected with the rotating head deflector rod part, the limiting groove part comprises a circular arc-shaped limiting groove, a sliding block, a left limiting block and a right limiting block, the sliding block is arranged in the limiting groove, and the left limiting block and the right limiting block are respectively positioned at the left end point and the right end point of the limiting groove. The invention has the beneficial effects that: the unidirectional rotation is ensured to be more than 360 degrees, and the use requirement of no dead angle in tracking measurement is met; simple structure, easy processing and easy assembly.
Description
Technical Field
The invention relates to laser measurement, in particular to a laser tracking measurement rotary limiting mechanism.
Background
In the process of tracking measurement, in order to ensure that the measurement range in the horizontal direction has no dead angle, the laser tracker requires that the arbitrary rotation angle of a vertical shaft is more than 360 degrees, and simultaneously requires that a line passing through the vertical axis cannot be stranded, a mechanical rotation limiting mechanism needs to be added; the device is provided with a rotating shaft, a limiting groove, a sliding block, a limiting block, a deflector rod, a rotating head seat and the like; the shifting rod is arranged on the rotating head seat and is arranged at a 0-degree position, the sliding block and the limiting block are arranged at 0-degree positive and negative positions, the rotating head seat and the shifting rod are driven to rotate together when the rotating shaft rotates, the shifting rod shifts the sliding block to move to the next limiting block position along the circumference of the limiting groove when the rotating shaft rotates clockwise, and the angle is smaller than 360 degrees; and rotating the deflector rod anticlockwise to stir the sliding block to move back to the initial position along the circumference of the limiting groove, wherein the angle is smaller than 720 degrees. This way not only ensures that the tracking measurement requires a rotation of more than 360 degrees, but also prevents the wire passing through the center of rotation from twisting off.
The prior patent 201821780121.2 is similar to the scheme, and is mainly used for manual rotation of the illuminating lamp of the medical equipment to prevent the twisting and breaking of a power line and a signal line which are arranged on a limiting mechanism; an upper limiting groove and a lower limiting groove are arranged, the angles of the upper limiting groove and the lower limiting groove are both smaller than 360 degrees, and the sliding block is arranged in the upper limiting groove and the lower limiting groove, so that the structure is relatively complex, the processing and the assembly are not facilitated, and meanwhile, the unidirectional rotation is not guaranteed to be close to 720 degrees; the multi-turn rotation cannot be realized quickly in special occasions.
The disadvantages of the prior art are as follows:
1. unidirectional rotation is less than 360 degrees.
2. The structure is complicated partially, and two limiting grooves are needed to be arranged up and down.
3. The structure is sealed into a whole, and the assembly is difficult and the maintenance is inconvenient.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a laser tracking measurement rotation limiting mechanism.
The invention provides a laser tracking measurement rotation limiting mechanism, which comprises a rotating part, a limiting groove part and a rotating head deflector rod part, wherein the rotating part comprises a base, a vertical shaft with a threading channel, a cable and a motor, the vertical shaft is rotatably connected with the base, the motor is connected with the vertical shaft and drives the vertical shaft to rotate, the cable passes through the threading channel of the vertical shaft, the vertical shaft is connected with the rotating head deflector rod part, the limiting groove part comprises a circular arc-shaped limiting groove, a sliding block, a left limiting block and a right limiting block, the sliding block is arranged in the limiting groove, the left limiting block and the right limiting block are respectively positioned at the left end point and the right end point of the limiting groove, the motor drives the vertical shaft to rotate to drive the rotating head part to rotate, and the rotating head deflector rod part drives the sliding block to move in the limiting groove, the moving position of the sliding block is limited by the left limiting block and the right limiting block.
As a further improvement of the invention, the limiting groove is mounted on the base of the rotating part.
As a further improvement of the invention, the limiting groove is in the shape of a major arc with a notch part.
As a further improvement of the invention, the middle point of the gap part of the limit groove is opposite to the zero position.
As a further improvement of the invention, the rotating head deflector rod part comprises a rotating head and a deflector rod, the rotating head is fixedly connected with the vertical shaft, the deflector rod is arranged at the bottom of the rotating head, and when the rotating head drives the deflector rod to rotate, the deflector rod pushes the sliding block to move in the limiting groove.
As a further improvement of the invention, the deflector rod and the rotating head are detachably assembled.
As a further improvement of the invention, the rotating part further comprises a bearing, and the vertical shaft is rotatably connected with the base through the bearing.
As a further improvement of the invention, the rotating part further comprises an encoder and an encoder calibrating tool, and the encoder calibrating tool are respectively installed on the vertical shaft.
As a further improvement of the invention, the encoder calibration tool is connected with a calibration device.
As a further development of the invention the cable is connected to the swivel head lever part.
The invention has the beneficial effects that:
1. the unidirectional rotation is ensured to be more than 360 degrees, and the use requirement of no dead angle in tracking measurement is met.
2. Simple structure, easy processing and easy assembly.
Drawings
Fig. 1 is an overall schematic diagram of a laser tracking measurement rotation limiting mechanism of the present invention.
Fig. 2 is a schematic cross-sectional view of a rotating portion of a laser tracking measurement rotation limiting mechanism of the present invention.
Fig. 3 is a zero-position schematic diagram of a rotating part of the laser tracking measurement rotation limiting mechanism.
Fig. 4 is a detailed schematic diagram of a laser tracking measurement rotation limiting mechanism of the present invention.
Fig. 5 is a partial schematic view of a laser tracking measurement rotation limiting mechanism of the present invention.
Fig. 6 is a schematic diagram of clockwise rotation of a limit groove portion of a laser tracking measurement rotation limit mechanism of the present invention.
Fig. 7 is a schematic diagram showing counterclockwise rotation of a limit groove portion of a laser tracking measurement rotation limit mechanism of the present invention.
Fig. 8 is a schematic calibration diagram of a laser tracking measurement rotation limiting mechanism of the invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 8, a laser tracking measurement rotation limiting mechanism mainly includes a rotation portion 10, a limiting groove portion 20, a rotating head rod portion 30; the three parts are finally assembled into a whole, the limiting groove part 20 is assembled on the base of the rotating part 10, and the cut part is opposite to the zero position; the rotary head stem portion 30 is fitted to the rotation axis of the rotating portion 10, and the light path indicating direction is directed toward the null position.
The rotating portion 10 is used for rotational driving and positional accuracy assurance; the device comprises a base 11, a vertical shaft 12, a bearing 13, a motor 14, an encoder 15, a cable 16 and an encoder calibrating tool 17; wherein the motor 14 drives the vertical shaft 12 to rotate forwards and backwards at any angle; the cables pass through the center of the vertical shaft and are connected to the swivel head stem portion 30.
The limiting groove part 20 and the rotating head deflector rod part 30 are used for limiting and controlling the rotating angle; the limiting groove part 20 comprises a limiting groove 21, a sliding block 22, a left limiting block 23 and a right limiting block 24; the limiting groove 21 is provided with a notch, the smaller the notch is, the larger the rotation angle is, the limiting groove 21 is mounted on the base 11 of the rotating part 10, the notch of the limiting groove 21 is aligned with the zero position of the rotating part 10, the sliding block 22 is arranged in the limiting groove 21, and the left limiting block 23 and the right limiting block 24 are respectively arranged at the left side and the right side of the limiting groove 21. A rotating head lever part 30 including a rotating head 31 and a lever 32; the shift lever 32 is arranged on the rotating head 31 and is overlapped when the rotating head 31 points to the zero position of the rotating part 10; when the vertical shaft 11 rotates, the rotating head 31 and the shifting rod 32 are driven to move circularly together, and when the clockwise rotation is started, the shifting rod 31 pushes the sliding block 22 to move to the right limiting block 24 to form a clockwise rotation angle which is smaller than 360 degrees; when the left stopper 23 starts to rotate anticlockwise, the shift lever 31 pushes the slider 22 to move to the left stopper 23 by an anticlockwise rotation angle which is smaller than 360 degrees; the movable angle measuring device can move clockwise and anticlockwise, moves in the opposite direction after moving to the limiting block, is 360 degrees larger than the initial direction in movement angle and smaller than 720 degrees on the whole, and ensures the angle range without dead angles during tracking measurement.
The angle of the encoder 15 of the rotating part 10 is inaccurate, when calibration is needed, a cable 16 joint fixed at the rotating head 31 is pulled out, and meanwhile, the driving rod 32 is detached, and the calibrating device 18 is assembled on the encoder calibrating tool 17, so that the calibration can be realized by multi-turn rotation in the forward and reverse directions, and the calibration is quick, simple and convenient.
Compared with the prior art, the laser tracking measurement rotation limiting mechanism provided by the invention has the following advantages:
1. the structure is simpler, the processing and the assembly are easy, and the cost is lower.
2. The unidirectional rotation of more than 360 degrees can be realized, and the laser tracking measurement of 360 degrees can be realized without dead angle.
3. Spacing draw-in groove is jagged, conveniently dismantles the driving lever and realizes the encoder calibration, and specific occasion can make things convenient for many rings of rotations fast, realizes the encoder calibration, guarantees to trail measurement accuracy.
4. The hollow design of the rotating shaft leads the cable to be difficult to twist, and the twisting problem is better avoided.
5. Only a limit groove needs to be arranged, and the structure is simple.
The laser tracking measurement rotation limiting mechanism provided by the invention is suitable for a tracker, can better meet the use requirement of the tracker, ensures that the tracking measurement is unidirectional and is more than 360 degrees, simultaneously the axial lead passes through the axial lead and is not twisted and broken, and when the laser tracking measurement rotation limiting mechanism is quickly calibrated in special occasions, a plurality of circles of rotation calibration are needed to ensure the rotation precision so as to ensure the measurement precision of the instrument.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a laser tracking measures rotatory stop gear which characterized in that: including rotating part, spacing groove part and rotating head driving lever part, rotating part includes the base, has vertical axle of threading passageway, cable and motor, vertical axle with the base rotates to be connected, the motor with vertical axle is connected, drives vertical axle rotates, the cable passes vertical axle's threading passageway, vertical axle with rotating head driving lever part is connected, spacing groove part includes convex spacing groove, slider, left stopper and right stopper, the slider sets up in the spacing groove, left stopper, right stopper are located respectively left end point, the right-hand member point in spacing groove, motor drive vertical axle rotates, drives rotating head driving lever part rotates, rotating head driving lever part drives the slider is in the spacing inslot removes, the shift position of slider receives left stopper, right-hand member point, And the right limiting block.
2. The laser tracking measurement rotation-limiting mechanism of claim 1, wherein: the limiting groove is installed on the base of the rotating part.
3. The laser tracking measurement rotation-limiting mechanism of claim 1, wherein: the shape of spacing groove is the major arc that has the breach part.
4. The laser tracking measurement rotation-limiting mechanism of claim 3, wherein: the middle point of the gap part of the limiting groove is opposite to the zero position.
5. The laser tracking measurement rotation-limiting mechanism of claim 1, wherein: the rotating head deflector rod part comprises a rotating head and a deflector rod, the rotating head is fixedly connected with the vertical shaft, the deflector rod is arranged at the bottom of the rotating head, and when the rotating head drives the deflector rod to rotate, the deflector rod pushes the sliding block to move in the limiting groove.
6. The laser tracking measurement rotation-limiting mechanism of claim 5, wherein: the deflector rod and the rotating head are mountable and dismountable.
7. The laser tracking measurement rotation-limiting mechanism of claim 1, wherein: the rotating part further comprises a bearing, and the vertical shaft is rotatably connected with the base through the bearing.
8. The laser tracking measurement rotation-limiting mechanism of claim 1, wherein: the rotating part further comprises an encoder and an encoder calibrating tool, and the encoder calibrating tool are respectively installed on the vertical shaft.
9. The laser tracking measurement rotation-limiting mechanism of claim 8, wherein: the code device calibration tool is connected with a calibration device.
10. The laser tracking measurement rotation-limiting mechanism of claim 1, wherein: the cable is connected to the swivel head stem portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019332.4A CN112833289A (en) | 2021-01-07 | 2021-01-07 | Laser tracking measurement rotation limiting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019332.4A CN112833289A (en) | 2021-01-07 | 2021-01-07 | Laser tracking measurement rotation limiting mechanism |
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| Publication Number | Publication Date |
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| CN112833289A true CN112833289A (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110019332.4A Pending CN112833289A (en) | 2021-01-07 | 2021-01-07 | Laser tracking measurement rotation limiting mechanism |
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| CN (1) | CN112833289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790689A (en) * | 2021-11-18 | 2021-12-14 | 深圳市中图仪器股份有限公司 | Calibration method of space coordinate measuring instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176481A (en) * | 2013-02-26 | 2013-06-26 | 李建斌 | Rotation limiting device |
| CN103883852A (en) * | 2014-03-07 | 2014-06-25 | 安徽旭辰达电子科技有限公司 | Over-360-degree coaxial rotating limiting device |
| CN204303991U (en) * | 2014-11-26 | 2015-04-29 | 深圳一电科技有限公司 | Automatic tracking antenna system and rotary position-limit mechanism thereof |
| CN207164629U (en) * | 2017-08-03 | 2018-03-30 | 深圳曼塔智能科技有限公司 | Rotary position-limit mechanism |
| CN207297776U (en) * | 2017-10-17 | 2018-05-01 | 北京永新医疗设备有限公司 | For rotating mechanism limiting device and there is its rotating mechanism |
-
2021
- 2021-01-07 CN CN202110019332.4A patent/CN112833289A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176481A (en) * | 2013-02-26 | 2013-06-26 | 李建斌 | Rotation limiting device |
| CN103883852A (en) * | 2014-03-07 | 2014-06-25 | 安徽旭辰达电子科技有限公司 | Over-360-degree coaxial rotating limiting device |
| CN204303991U (en) * | 2014-11-26 | 2015-04-29 | 深圳一电科技有限公司 | Automatic tracking antenna system and rotary position-limit mechanism thereof |
| CN207164629U (en) * | 2017-08-03 | 2018-03-30 | 深圳曼塔智能科技有限公司 | Rotary position-limit mechanism |
| CN207297776U (en) * | 2017-10-17 | 2018-05-01 | 北京永新医疗设备有限公司 | For rotating mechanism limiting device and there is its rotating mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790689A (en) * | 2021-11-18 | 2021-12-14 | 深圳市中图仪器股份有限公司 | Calibration method of space coordinate measuring instrument |
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Application publication date: 20210525 |
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