CN202382724U - Angle measuring instrument - Google Patents

Angle measuring instrument Download PDF

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Publication number
CN202382724U
CN202382724U CN2011205669146U CN201120566914U CN202382724U CN 202382724 U CN202382724 U CN 202382724U CN 2011205669146 U CN2011205669146 U CN 2011205669146U CN 201120566914 U CN201120566914 U CN 201120566914U CN 202382724 U CN202382724 U CN 202382724U
Authority
CN
China
Prior art keywords
ring
shaft
angle
multidiameter
axle sleeve
Prior art date
Application number
CN2011205669146U
Other languages
Chinese (zh)
Inventor
陈洪安
石翔咏
李健
周华聪
Original Assignee
北京中科恒业中自技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 北京中科恒业中自技术有限公司 filed Critical 北京中科恒业中自技术有限公司
Priority to CN2011205669146U priority Critical patent/CN202382724U/en
Application granted granted Critical
Publication of CN202382724U publication Critical patent/CN202382724U/en

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Abstract

The utility model relates to an angle measuring instrument which is characterized in that the angle measuring instrument comprises a base seat made of a granite material, a through hole is arranged in the base seat, a direct drive motor is arranged inside the through hole, a stator of the direct drive motor is fixedly connected with a shaft sleeve, the shaft sleeve is fixedly connected on the base seat, a rotor of the direct drive motor is connected with a stepped shaft through an end plate and a bolt, a dense ball bearing is arranged between the stepped shaft and the shaft sleeve, an end cap is arranged at the bottom of the dense ball bearing, a circle of protruded shaft shoulders is arranged in the middle of the stepped shaft, the shaft shoulders are supported at the top of the shaft sleeve through a pressure bearing, a flange is fixedly connected at the top of the shaft sleeve, the top of the flange is fixed at an outer ring of a circular grating angle encoder, an inner ring of the circular grating angle encoder is fixedly supported at the top of the shaft shoulder, a retaining ring is connected between the top of the inner ring of the circular grating angle encode and the stepped shaft in a sealing way, and the top of the stepped shaft is fixedly connected with a support platform; the rotor of the direct drive motor is connected with a control system, and the inner ring of the circular grating angle encode is connected with a data processing system of a computer. The angle measuring instrument can be widely used in the angle measuring of the angle encoder, the optical prism, the self-alignment light pipe, the theodolite, and the like.

Description

A kind of angel measuring instrument
Technical field
The utility model relates to a kind of angle measurement unit, particularly carries out the angel measuring instrument that angle precision is measured about a kind of angle scrambler, angular optical polygon and autocollimation light pipe etc. of being applicable to.
Background technology
Along with modern development of auto-control technology; Angular encoder is widely used in the angle control in fields such as Aeronautics and Astronautics, navigation, numerically-controlled machine and robot; The application that angular optical polygon and autocollimation light pipe etc. are made the field in heavy construction is also more and more, thereby needs high precision, efficient the take measurement of an angle angle measurement accuracy of scrambler, angular optical polygon and autocollimation light pipe etc.Existing angel measuring instrument generally adopts the irony pedestal, owing to the irony pedestal is subject to the deformation that temperature variation produces Fundamentals of Measurement, can not satisfy high precision measurement of angle requirement.
The utility model content
To the problems referred to above, the purpose of the utility model provides a kind of high precision, high-level efficiency, be difficult for temperature influence and can the angle scrambler, the angel measuring instrument accurately measured of the angle precision of angular optical polygon and autocollimation light pipe.
Be to realize above-mentioned purpose, the utility model is taked following technical scheme: a kind of angel measuring instrument is characterized in that: it comprises the pedestal processed by the grouan material; Be provided with a through hole in the said pedestal; Be provided with in the said through hole and drive motor always, the stator top of said direct driving motor is fixedly connected an axle sleeve, and the top of said axle sleeve is fixedly connected on the said pedestal; The rotor of said direct driving motor is connected a multidiameter through an end plate with some bolts; Be provided with a sealed bead bearing between said multidiameter and the said axle sleeve, said sealed bead bearing bottom is provided with an end cap, and the middle part of said multidiameter is provided with the shaft shoulder of a circle protrusion; The said shaft shoulder is supported on said axle sleeve top through a pressure bearing; The top of said axle sleeve is fixedly connected with a flange, and said flange top is fixedly connected the outer ring of a circle grating angular encoder, and the inner ring of said round grating angular encoder is fixedly supported on said shaft shoulder top; Be sealedly connected with a back-up ring between the inner ring top of said round grating angular encoder and the said multidiameter, the top of said multidiameter is fixedly connected with a brace table; The rotor of said direct driving motor connects a control system, and the inner ring of said round grating angular encoder connects a computer data processing system.
When measuring, the top of said pedestal is provided with a worktable, and said worktable is set in said axle sleeve top outer.
The utility model is owing to take above technical scheme, and it has the following advantages: 1, because the pedestal of the utility model adopts the grouan material, therefore compare with the irony pedestal of prior art, have thermal deformation characteristics little, steady in a long-term.2, the utility model can be connected tested instrument when angle scrambler, angular optical polygon, autocollimation light pipe are measured with the multidiameter rapid coaxial, so has compressed measurement setup time effectively.3, the utility model is in the process that tested instrument is measured; Utilize control system control direct driving motor to drive circle grating angular encoder and the rotation of tested instrument; The measuring process of this robotization has been got rid of the influence of operator's skill level, has therefore improved work efficiency effectively.4, the utility model adopts direct driving motor, sealed bead bearing and the coaxial mounted mode of circle grating angular encoder, for the high precision measurement of angle provides the angle rotary benchmark, has therefore improved measuring accuracy and long-time stability effectively.The utility model is widely used in angle scrambler, angular optical polygon, autocollimation light pipe and the measurement of transit equal angles.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the measuring principle synoptic diagram of the utility model;
Fig. 3 is that the structure of the utility model is formed synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.
As shown in Figure 1; The utility model comprises the pedestal 1 processed by the grouan material, and pedestal 1 center is provided with a through hole 2, is provided with in the through hole 2 and drives motor 3 always; Stator 31 tops of direct driving motor 3 are fixedly connected an axle sleeve 4, and the top of axle sleeve 4 is fixedly connected on the pedestal 1.The rotor 32 of direct driving motor 3 is connected a multidiameter 6 through an end plate 5 with some bolts, be provided with a sealed bead bearing 7 between multidiameter 6 and the axle sleeve 4, and sealed bead bearing 7 bottoms are fixedly connected an end cap 8.The middle part of multidiameter 6 is provided with the shaft shoulder 9 of a circle protrusion, and the shaft shoulder 9 is supported on axle sleeve 4 tops through a pressure bearing 10.The top of axle sleeve 4 is fixedly connected with a flange 11; Flange 11 tops are fixedly connected the outer ring 121 of a circle grating angular encoder 12; The inner ring 122 of circle grating angular encoder 12 is fixedly supported on the shaft shoulder 9 tops; Be sealedly connected with a back-up ring 13 between inner ring 122 tops of circle grating angular encoder 12 and the multidiameter 6, the top of multidiameter 6 is fixedly connected with a brace table 14.
Also be provided with control system and computer data processing system on the pedestal 1, control system connects the rotor 32 of direct driving motor 3, and the computational data disposal system connects circle grating angular encoder 12 and tested instrument; Rotor 32 work through control system control direct driving motor 3; Rotor 32 drives multidiameter 6 and rotates together; And then the inner ring 122 that drives circle grating angular encoder rotates; The angle that turns over the inner ring 122 of justifying grating angular encoder 12 is the angle precision that the measurement of angle benchmark is used to measure measured instrument, and measurement is gathered, analyzes, handled and store data measured through computer data processing system after accomplishing.
In the foregoing description, the size of pedestal 1 can be 1000 * 800 * 500mm 3, measurement of angle resolution can reach 0.1 ", angle-measurement accuracy can reach 1 ", the diameter run-out of multidiameter 6 can be 0.001mm, and the face runout of multidiameter 6 can be 0.0015mm, and the revolution rotating speed of multidiameter 6 can be 1/5~50rpm.
As shown in Figure 2, among above-mentioned each embodiment, when measuring, the top of pedestal 1 can also be provided with a circular table 15, and worktable 15 is set in axle sleeve 4 top outer, and the diameter of worktable 15 can be for about 600mm.
Shown in Fig. 2~3; Utilize the utility model to measure to the angle precision of measured angular encoder 16; Before the measurement; Fixedly mount a ring flange 161 at the top of worktable 15, measured angular encoder 16 be placed on the ring flange 161, simultaneously with the turning axle of angular encoder 16 and brace table 14 tops through 162 coaxial connections of shaft coupling.During measurement; Drive angular encoder 16 coaxial synchronous rotations by control system control direct driving motor 3; Computer data processing system is gathered the angular signal of round grating angular encoder 12 and angular encoder 16 respectively; Through analyzing, the angle value that angle value that circle grating angular encoder 12 is turned over and measured angular encoder 16 turn over is compared and then can be drawn the angular error of measured angular encoder 16.
Utilize the utility model to measure to the angle precision of angular optical polygon 17; Before the measurement; On angular optical polygon 17 coaxial installation brace tables 14, and a high-precision autocollimation light pipe 18 is set on worktable 15, during measurement; Autocollimation light pipe 18 aiming angular optical polygons 17; Control system control direct driving motor 3 rotates drive angular optical polygon 17 and turns over its reflecting surface one by one, and computer data processing system is gathered round grating angular encoder 12 and angular optical polygon 17 angular signals respectively, through analyzing; The angle value that angle value that circle grating angular encoder 12 is turned over and measured angular optical polygon 17 turn over is compared, and then can draw the angular error of measured angular optical polygon 17.
In like manner; Utilizing the utility model to measure also can measure the angular error of autocollimation light pipe 18; Before the measurement, an autocollimation light pipe 18 is set on worktable 15, simultaneously with on the high-precision angular optical polygon 17 coaxial installation plummers 14; During measurement; One of them reflecting surface of autocollimation light pipe 18 aiming angular optical polygons 17, control system control direct driving motor 3 rotates the reflecting surface that drives angular optical polygons 17 and turns over a minute angle, and autocollimation light pipe 18 receives the picture that reflects with angle of hour offset; Computer data processing system is gathered the angular signal of round grating angular encoder 12 and autocollimation light pipe 18 respectively; Through analyzing, the angle value that angle value that circle grating angular encoder 12 is turned over and measured autocollimation light pipe 18 turn over is compared, and then can draw the angular error of measured autocollimation light pipe 18.
Above-mentioned each embodiment only is used to explain the utility model; Wherein the structure of each parts and connected mode etc. all can change to some extent; Every equivalents of on the basis of the utility model technical scheme, carrying out and improvement all should not got rid of outside the protection domain of the utility model.

Claims (2)

1. angel measuring instrument; It is characterized in that: it comprises the pedestal processed by the grouan material, is provided with a through hole in the said pedestal, is provided with in the said through hole and drives motor always; The stator top of said direct driving motor is fixedly connected an axle sleeve; The top of said axle sleeve is fixedly connected on the said pedestal, and the rotor of said direct driving motor is connected a multidiameter through an end plate with some bolts, is provided with a sealed bead bearing between said multidiameter and the said axle sleeve; Said sealed bead bearing bottom is provided with an end cap; The middle part of said multidiameter is provided with the shaft shoulder of a circle protrusion, and the said shaft shoulder is supported on said axle sleeve top through a pressure bearing, and the top of said axle sleeve is fixedly connected with a flange; Said flange top is fixedly connected the outer ring of a circle grating angular encoder; The inner ring of said round grating angular encoder is fixedly supported on said shaft shoulder top, is sealedly connected with a back-up ring between the inner ring top of said round grating angular encoder and the said multidiameter, and the top of said multidiameter is fixedly connected with a brace table; The rotor of said direct driving motor connects a control system, and the inner ring of said round grating angular encoder connects a computer data processing system.
2. a kind of angel measuring instrument as claimed in claim 1 is characterized in that: when measuring, the top of said pedestal is provided with a worktable, and said worktable is set in said axle sleeve top outer.
CN2011205669146U 2011-12-30 2011-12-30 Angle measuring instrument CN202382724U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205669146U CN202382724U (en) 2011-12-30 2011-12-30 Angle measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205669146U CN202382724U (en) 2011-12-30 2011-12-30 Angle measuring instrument

Publications (1)

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CN202382724U true CN202382724U (en) 2012-08-15

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Application Number Title Priority Date Filing Date
CN2011205669146U CN202382724U (en) 2011-12-30 2011-12-30 Angle measuring instrument

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453872A (en) * 2013-08-02 2013-12-18 上海交通大学 Multi-shaft vacuum manipulator shafting precision testing device
CN103471556A (en) * 2013-08-22 2013-12-25 恒天九五重工有限公司 Device for measuring rotation angle for return driving during loading of rotary drilling rig
CN103499365A (en) * 2013-10-10 2014-01-08 中国科学院上海技术物理研究所 Rotary transformer static and dynamic angle measuring accuracy calibration device and method
CN103983229A (en) * 2014-05-29 2014-08-13 哈尔滨量具刃具集团有限责任公司 Split-type structure angular displacement sensor installed quickly and installation method
CN106123809A (en) * 2016-07-22 2016-11-16 中国工程物理研究院机械制造工艺研究所 A kind of sub-rad level angle-measuring equipment
CN106524944A (en) * 2015-09-10 2017-03-22 河北太行计量检测有限公司 Non-coaxial circular grating angle measurement device and angle measurement method
CN108088393A (en) * 2017-11-08 2018-05-29 武汉航空仪表有限责任公司 A kind of angle positioning device folded available for helicopter blade

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453872A (en) * 2013-08-02 2013-12-18 上海交通大学 Multi-shaft vacuum manipulator shafting precision testing device
WO2015014045A1 (en) * 2013-08-02 2015-02-05 上海交通大学 Shafting accuracy test device for multi-axis vacuum manipulator
CN103471556A (en) * 2013-08-22 2013-12-25 恒天九五重工有限公司 Device for measuring rotation angle for return driving during loading of rotary drilling rig
CN103471556B (en) * 2013-08-22 2016-08-17 恒天九五重工有限公司 Rotary drilling rig upper-part rotation driving rotating angle measurement apparatus
CN103499365A (en) * 2013-10-10 2014-01-08 中国科学院上海技术物理研究所 Rotary transformer static and dynamic angle measuring accuracy calibration device and method
CN103983229A (en) * 2014-05-29 2014-08-13 哈尔滨量具刃具集团有限责任公司 Split-type structure angular displacement sensor installed quickly and installation method
CN106524944A (en) * 2015-09-10 2017-03-22 河北太行计量检测有限公司 Non-coaxial circular grating angle measurement device and angle measurement method
CN106123809A (en) * 2016-07-22 2016-11-16 中国工程物理研究院机械制造工艺研究所 A kind of sub-rad level angle-measuring equipment
CN108088393A (en) * 2017-11-08 2018-05-29 武汉航空仪表有限责任公司 A kind of angle positioning device folded available for helicopter blade

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EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120815

Termination date: 20141230