CN204302300U - A kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad - Google Patents
A kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad Download PDFInfo
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- CN204302300U CN204302300U CN201420847771.XU CN201420847771U CN204302300U CN 204302300 U CN204302300 U CN 204302300U CN 201420847771 U CN201420847771 U CN 201420847771U CN 204302300 U CN204302300 U CN 204302300U
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Abstract
The utility model discloses a kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, comprise the grating ring flange installing grating ring and the grating head flange installing grating head, described grating ring flange central vertical is fixedly connected on end face of mandrel, the described mandrel other end is fixedly connected on rotating seat joint, described grating head flange is connected in mandrel outside cylinder by bearing, is fixedly connected on fixed support by dust cover.The utility model adopts flange to be installed on mandrel by grating head and grating ring, and by the connection of rotating base and support bracket fastened fixing, achieve calibrator (-ter) unit precision high, install and use and calibrate conveniently, calibration is simple, data are reliable, efficiently solve the calibration accuracy existed in prior art low, inconvenient problem is installed, and have that structure is simple, the feature of compact equipment.
Description
Technical field
The utility model relates to a kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, belongs to instrument and equipment collimation technique field.
Background technology
Radio frequency semi-matter simulating system is formed primarily of two parts: artificial rotary table and radio frequency target simulation system.Artificial rotary table is a kind of optical, mechanical and electronic integration equipment of complexity, and artificial rotary table can simulate the motion of various attitude angle, reappears various dynamics during its motion.RF array column target simulation system adopts the method for control circui to carry out the emulation of realize target space angle motion.Radio frequency semi-matter simulating system is widely used in Aeronautics and Astronautics emulation and field tests, and whether its value is accurately directly connected to the quality of analogue system testing result.
The installation of the calibration components and parts calibrated for the angular speed of artificial rotary table is particularly important, and existing calibration components and parts installation accuracy is not high, will the inaccuracy of calibration data be caused, and also inconvenience can be installed, therefore need design calibration accuracy high, mount pad easy for installation.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, simple and compact equipment structure, install and use and calibrate conveniently, calibration accuracy is high, to overcome the deficiency of prior art problem.
The technical scheme that the utility model is taked is: a kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, comprise the grating ring flange installing grating ring and the grating head flange installing grating head, described grating ring flange central vertical is fixedly connected on end face of mandrel, the described mandrel other end is fixedly connected on rotating seat joint, described grating head flange is connected in mandrel outside cylinder by bearing, is fixedly connected on fixed support by dust cover.
Described mandrel adopts the hollow shaft of band blind hole, weight reduction, operate more flexible, Strength Changes is little, and equipment is convenient to carrying, and outside cylinder is a Step Shaft, the location of bearing and rotating seat jiont treatment can be realized, top is provided with the positioning boss for locating grating ring flange, and it is higher that high-precision location can realize Grating examinations precision, and reduction equipment installs the error brought.
Described grating ring flange adopts step lid-like, and compact conformation is lightweight, intensity and good rigidly, and can meet installation requirement, there is detent at middle part inwardly, can realize accurate location fast, is convenient to install, reduces adjustment.
Described grating head flange adopts inside and outside circulus, and the ring of two different height is connected by anchor ring, and compact conformation is lightweight, intensity and good rigidly, can meet installation requirement.
Described bearing adopts two angular contact ball bearing to support, install dorsad, price is low, and market is common, be easy to obtain, easy for installation, certain axial load can be born, meet instructions for use, upper bearing (metal) end is sealed by sealing ring, avoid dust to enter, affect bearing rotation precision, avoid the reduction of Circular Ring Grating accuracy of detection.
Described rotating seat joint is a pair of flange-like structure, inner hollow, weight reduction, is convenient to installation and maintenance, and upper end connecting portion extends inwardly, compact conformation, lower end extends outwardly, and convenient installation, is connected with artificial rotary table by breach, be convenient to adjustment grating mount pad concentric with artificial rotary table, calibration detects more accurate.
Described breach adopts U-shaped shape, and be convenient to processing and use, minimum more than 4, being arranged symmetrically with, ensure rotating seat stress equalization, installation accuracy is higher, reduces the calibration data inaccuracy that alignment error is brought.
Described breach adopts 12, and artificial rotary table is corresponding, and it is more firm that installation connects, and steadiness is better.
The beneficial effects of the utility model: compared with prior art, the utility model adopts flange to be installed on mandrel by grating head and grating ring, and by the connection of rotating base and support bracket fastened fixing, achieve calibrator (-ter) unit precision high, install and use and calibrate conveniently, calibration is simple, data are reliable, efficiently solve the calibration accuracy existed in prior art low, inconvenient problem is installed, and have that structure is simple, the feature of compact equipment.
Accompanying drawing explanation
Fig. 1 is grating mount pad structural representation of the present utility model;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is angular speed of the present utility model calibration schematic diagram.
Detailed description of the invention
As shown in Fig. 1 ~ Fig. 2, a kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, comprise the grating ring flange 3 installing grating ring 2 and the grating head flange 4 installing grating head 1, described grating ring flange 2 central vertical is fixedly connected on mandrel 5 end face, described mandrel 5 other end is fixedly connected on rotating seat joint 6, described grating head flange 4 is connected in mandrel 5 outside cylinder by bearing 7, be fixedly connected on fixed support 8 by dust cover 9, fixed support 8 fixes on the ground, grating head is maintained static, artificial rotary table driven rotary seated connection head realizes the rotation of grating ring 2, flange is adopted to be installed on mandrel 5 by grating head 1 and grating ring 2, and by the connection of rotating base 6 and support bracket fastened fixing, achieve calibrator (-ter) unit precision high, install and use and calibrate conveniently, calibration is simple, data are reliable, efficiently solve the calibration accuracy existed in prior art low, inconvenient problem is installed, and it is simple to have structure, the feature of compact equipment.
Described mandrel 5 adopts the hollow shaft of band blind hole, weight reduction, operate more flexible, Strength Changes is little, and equipment is convenient to carrying, and outside cylinder is a Step Shaft, the location of bearing and rotating seat jiont treatment can be realized, top is provided with the positioning boss for locating grating ring flange 2, and it is higher that high-precision location can realize Grating examinations precision, and reduction equipment installs the error brought.
Described grating ring flange 2 adopts step lid-like, compact conformation, lightweight, intensity and good rigidly, and can meet installation requirement, there is detent at middle part inwardly, can realize accurate location fast, is convenient to install, and reduces adjustment.
Described grating head flange 4 adopts inside and outside circulus, and the ring of two different height is connected by anchor ring, and compact conformation is lightweight, intensity and good rigidly, can meet installation requirement.
Described bearing 7 adopts two angular contact ball bearing to support, install dorsad, price is low, and market is common, be easy to obtain, easy for installation, certain axial load can be born, meet instructions for use, upper bearing (metal) end is sealed by sealing ring, avoid dust to enter, affect bearing rotation precision, avoid the reduction of Circular Ring Grating accuracy of detection.
Described rotating seat joint 6 is a pair of flange-like structure, inner hollow, weight reduction, is convenient to installation and maintenance, and upper end connecting portion extends inwardly, compact conformation, lower end extends outwardly, and convenient installation, is connected with artificial rotary table by breach, be convenient to adjustment grating mount pad concentric with artificial rotary table, calibration detects more accurate.
Described breach adopts U-shaped shape, and be convenient to processing and use, minimum more than 4, being arranged symmetrically with, ensure rotating seat stress equalization, installation accuracy is higher, reduces the calibration data inaccuracy that alignment error is brought.
Described breach adopts 12, and artificial rotary table is corresponding, and it is more firm that installation connects, and steadiness is better.
Radio frequency simulation turntable angular speed calibration steps, schematic diagram as shown in Figure 3, comprise Circular Ring Grating, described Circular Ring Grating comprises grating ring and grating head, be arranged on grating mount pad, be connected with the table top of radio frequency simulation turntable, described grating head alignment light grating ring, and be connected to and be connected with the data acquisition unit being connected with host computer, host computer is connected by wirless transmitting and receiving module with data acquisition unit, its step comprises as follows: when radio frequency simulation turntable moves, time base circuit starts timing immediately, the angle of angle-measuring equipment record angular speed calibrating installation rotation simultaneously, by data Collection & Processing System record and analysis data, obtain angular speed parameter index, the angular speed parameter index inputted with radio frequency simulation turntable compares, realize the calibration of radio frequency artificial rotary table angular speed parameter.
Said method considers that the speed range of radio frequency simulation turntable is wide, resolution ratio is high, therefore select a diameter to be the Circular gratings of 229mm, model is RESM20USA229, Circular gratings interface arrangement model is Si-NN-0100 and Si-NN-0040, resolution ratio is respectively 0.2 μm and 0.5 μm, and Circular gratings read head adopts SR050A.
The frame of reference of calibrating installation grating head adopts three read head designs, and wherein a pair read head acquisition angles signal, another read head realizes calibration at a high speed, reduces eccentric error by double-reading head.Double-reading head can compensate the impact of Static and dynamic bearing skew, thus realizes the integral installation error of ± 2 seconds.The increment signal of double-reading head is combined, for controller just as an independently high accuracy grating, eliminate eccentric error, remaining error is only score line error and circular error, these two kinds of errors are all very little, can make the angle measurement accuracy that calibrating installation reaches higher.
The calibration of calibrating installation angular speed adopts determines angle timing mode, the traveling angle position of angle acquisition Circular gratings, the time of time collection crystal oscillator.The key of angular speed calibration is stationary problem, synchronizing signal is taken to the 100MHz crystal oscillator source (10 of a stability
-6/ sky).
Consider the convenience that calibration system uses, data processing selects the PC/104 board grinding China, the counting interface board of angle measuring system also selects the technical interface plate of Based PC/104 bus, is connected to notebook computer by data wire, testing results software, process test data on host computer.
Claims (8)
1. one kind for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: comprise the grating ring flange (3) installing grating ring (2) and the grating head flange (4) installing grating head (1), described grating ring flange (3) central vertical is fixedly connected on mandrel (5) end face, described mandrel (5) other end is fixedly connected on rotating seat joint (6), described grating head flange (4) is connected in mandrel (5) outside cylinder by bearing (7), is fixedly connected on fixed support (8) by dust cover (9).
2. one according to claim 1 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described mandrel (5) adopts the hollow shaft of band blind hole, outside cylinder is a Step Shaft, and top is provided with the positioning boss for locating grating ring flange (3).
3. one according to claim 1 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described grating ring flange (3) adopts step lid-like, and there is detent at middle part inwardly.
4. one according to claim 1 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described grating head flange (4) adopts inside and outside circulus, and the ring of two different height is connected by anchor ring.
5. one according to claim 1 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described bearing (7) adopts two angular contact ball bearing to support, and install dorsad, upper bearing (metal) end is sealed by sealing ring.
6. one according to claim 1 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described rotating seat joint (6) is a pair of flange-like structure, inner hollow, upper end connecting portion extends inwardly, lower end extends outwardly, and is connected with artificial rotary table by breach.
7. one according to claim 6 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described breach adopts U-shaped shape, minimum more than 4, is arranged symmetrically with.
8. one according to claim 7 is used for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad, it is characterized in that: described breach adopts 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847771.XU CN204302300U (en) | 2014-12-29 | 2014-12-29 | A kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad |
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| CN201420847771.XU CN204302300U (en) | 2014-12-29 | 2014-12-29 | A kind of for radio frequency simulation turntable angular speed calibrating installation detecting element mount pad |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142137A (en) * | 2015-07-31 | 2016-11-23 | 宁夏巨能机器人系统有限公司 | A kind of articulated robot self-checking device and calibration steps |
| 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 |
-
2014
- 2014-12-29 CN CN201420847771.XU patent/CN204302300U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142137A (en) * | 2015-07-31 | 2016-11-23 | 宁夏巨能机器人系统有限公司 | A kind of articulated robot self-checking device and calibration steps |
| 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 |
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