CN204479056U - A kind of calibrating device for angular displacement sensor - Google Patents
A kind of calibrating device for angular displacement sensor Download PDFInfo
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- CN204479056U CN204479056U CN201520208423.2U CN201520208423U CN204479056U CN 204479056 U CN204479056 U CN 204479056U CN 201520208423 U CN201520208423 U CN 201520208423U CN 204479056 U CN204479056 U CN 204479056U
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- displacement sensor
- angular displacement
- indexing table
- flat board
- multiteeth indexing
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Abstract
The utility model discloses a kind of calibrating device for angular displacement sensor, comprise flat board, vertical shaft type multiteeth indexing table, two columns, ball spline pair, Miniature bellows shaft coupling, Multifunction digital indicating meter, gland, upper workplace, described column is fixed on flat board, workplace is provided with above described column, described upper workplace is provided with by school angular displacement sensor, described gland is fixing by school angular displacement sensor, described flat board is provided with vertical shaft type multiteeth indexing table and Multifunction digital indicating meter, internal thread is provided with in the center pit of described vertical shaft type multiteeth indexing table, spline housing one end of described ball spline pair has external thread axle, described external thread axle is connected with vertical shaft type multiteeth indexing table, the splined shaft of described ball spline pair is connected with by the turning axle of school angular displacement sensor by Miniature bellows shaft coupling.The utility model is simple, convenient, accuracy of measurement is high, do not need routine testing process tune center etc., solves a difficult problem for angular displacement sensor angle calibration system well.
Description
Technical field
The utility model relates to a kind of calibrating installation, especially relates to a kind of calibrating device for angular displacement sensor.
Background technology
Angular displacement sensor a kind ofly can experience angular displacement and convert the surveying instrument of usable output signal to.Resistance-type angular displacement sensor, capacitive angular sensor, induction type angle displacement sensor, differential transformation type angular displacement sensor etc. can be divided into by its principle of work.Angular displacement sensor has the features such as sensitivity is good, reproducible, accuracy is high, the life-span is long, good reliability, is widely used in the measurement and monitoring system of robotization in the industries such as aviation, electronics, machinery, weaving, boats and ships, metallurgy.
Define the main metering performance of angular displacement sensor in national regulation JJF1352-2012 " angular displacement sensor " calibrating standard to have: the linearity, hysterisis error and repeatability etc.But do not have clear stipulaties to adopt what standard set-up to realize the measurement of the linearity, hysterisis error and repeatability in specification, only propose and want collimation angle displacement transducer, the dividing apparatus error of indication≤4 must be provided " device could the linearity of collimation angle displacement transducer, hysterisis error and repeated metering performance; The angle-measuring equipment such as equipment optical dividing head, multiteeth indexing table ready-made at present all directly can not be used for the linearity of collimation angle displacement transducer, hysterisis error and repeatability.Optics, digital display dividing head are with the angle measuring instrument of optical circle, Circular gratings or round induction synchrometer equal indicative element, the largest divisions error of its optics, digital display dividing head is in (2 ~ 20) " in scope; when providing standard angle collimation angle displacement transducer with optics, digital display dividing head; accuracy of measurement is lower than multiteeth indexing table; and also optics, digital display dividing head volume are comparatively large, inconvenient operation.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is, provides a kind of simple, convenient, calibrating device for angular displacement sensor that accuracy of measurement is high.As long as the rotating shaft of angular displacement sensor is connected by Miniature bellows shaft coupling (pinching) and splined shaft and locked and just can measure by the utility model, do not need to utilize the adjustment processes such as signing method eccentric.
The technical solution of the utility model is: a kind of calibrating device for angular displacement sensor, comprise flat board, vertical shaft type multiteeth indexing table, two columns, ball spline pair, Miniature bellows shaft coupling, Multifunction digital indicating meter, gland, upper workplace, described column is fixed on flat board, workplace is provided with above described column, described upper workplace is provided with by school angular displacement sensor, described gland is fixing by school angular displacement sensor, described flat board is provided with vertical shaft type multiteeth indexing table and Multifunction digital indicating meter, internal thread is provided with in the center pit of described vertical shaft type multiteeth indexing table, spline housing one end of described ball spline pair has external thread axle, described external thread axle is connected with vertical shaft type multiteeth indexing table, the splined shaft of described ball spline pair is connected with by the turning axle of school angular displacement sensor by Miniature bellows shaft coupling.
Further, the screw thread of described spline housing one end external thread axle matches with the internal thread of vertical shaft type multiteeth indexing table center pit, and the length of described external thread axle differs 1mm with the length of vertical shaft type multiteeth indexing table center pit.
Further, described spline housing and splined shaft are interference fit.
Further, described flat board is provided with the Multifunction digital indicating meter for measured angular displacement transducer output signal.
Further, described Miniature bellows shaft coupling is pinching.
Further, the material of described Miniature bellows shaft coupling is stainless steel.
Further, described column is " L " type column, comprises right-angle side and end right-angle side, and right-angle side of the described end is bolted on flat board.
Further, described flat board is marble flat board or cast iron surface plate.
Further, the material of described upper workplace is aluminium alloy.
The beneficial effect that the utility model reaches: the utility model have employed ball spline pair, when utilizing vertical shaft type multiteeth indexing table to provide standard angle, when on vertical shaft type multiteeth indexing table, fluted disc rises or declines, the spline housing of ball spline pair is only driven to rise or decline, and splined shaft is motionless, if splined shaft is motionless, then the angular displacement sensor connected together by shaft coupling and splined shaft is just motionless, position, angle device sensor does not produce displacement in vertical direction, improves measuring accuracy; Spline housing and splined shaft are interference fit, basic gapless, and no matter forward or reverse can provide standard angle accurately; External thread is processed in spline housing one end of ball spline pair, match with the internal thread hole of multiteeth indexing table rotating central hole, directly tighten and just can ensure that the splined shaft of ball spline pair is coaxial with multiteeth indexing table revolving shaft, do not need the right alignment utilizing the rotating shaft of signing method angle modulation displacement transducer and the revolving shaft of multiteeth indexing table.The error of division that the utility model provides is 0.2 ", national measurement benchmark can be traceable to; The utility model is simple to operate, do not need routine testing process tune center etc., well solves a difficult problem for angular displacement sensor angle calibration system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Structural representation when Fig. 2 is the utility model calibration;
Fig. 3 is the structural representation of the utility model ball spline pair.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As depicted in figs. 1 and 2, the utility model calibrating device for angular displacement sensor comprises marble flat board 1, vertical shaft type multiteeth indexing table 2, two columns 5, ball spline pair 3, Miniature bellows shaft coupling 4, Multifunction digital indicating meter 8, gland 7, upper workplace 6, described column 5 is fixed on marble flat board 1, workplace 6 is provided with above described column 5, described upper workplace 6 is provided with by school angular displacement sensor 9, described gland 7 is fixing by school angular displacement sensor 9, described dull and stereotyped 1 is provided with vertical shaft type multiteeth indexing table 2 and Multifunction digital indicating meter 8, internal thread is provided with in the center pit of described vertical shaft type multiteeth indexing table 2, spline housing 32 one end of described ball spline pair 3 has external thread axle 33, described external thread axle 33 is connected with vertical shaft type multiteeth indexing table 2, the splined shaft 31 of described ball spline pair 3 is connected with by the turning axle of school angular displacement sensor 9 by Miniature bellows shaft coupling 4.
Marble flat board 1: be used for placement 720 type vertical shaft type multiteeth indexing table 2.According to JJG472-2007 " multiteeth indexing table vertification regulation ", calibrating multiteeth indexing table metering performance must be placed on 1 grade of flat board when requiring, be consistent to make measuring state and using state, during with multiteeth indexing table collimation angle displacement transducer, at least 1 grade of flat board must be configured, just can guarantee that this multiteeth indexing table provides standard angle accurately.This device be adopt model (600 × 450) mm, the flatness of worktable workplace is no more than the marble flat board 1 of 6.5 μm, and has base, adjusting base guarantees dull and stereotyped 1 level of marble.
720 type vertical shaft type multiteeth indexing tables 2: be placed on marble flat board 1, model is 720 types, and largest divisions interval error is 0.2 ", angle measurement repeatability is no more than: 0.02 ".Act in the apparatus: standard angle is provided.
Ball spline pair 3: as shown in Figure 3, ball spline pair 3 comprises splined shaft 31 and spline housing 32, there are three effects, the first, connection function: the external thread axle 33 matched with multiteeth indexing table 2 center pit is processed in one end of ball spline pair 3, the length of external thread axle 33 differs 1mm with vertical shaft type multiteeth indexing table center pit length.This device external thread spindle-type number is M42 × 1.5, and length is 4mm, is directly screwed in multiteeth indexing table 2 center pit, guarantees that the turning axle of multiteeth indexing table 2 is coaxial with splined shaft 31.The second, multiteeth indexing table 2 will form a standard angle, and the upper fluted disc of multiteeth indexing table 2 must rise, and after upper fluted disc rotates a standard angle, upper fluted disc declines and engages with lower tooth disk, will form a standard angle.When first will overcome fluted disc rising on multiteeth indexing table 2 during this apparatus design, Miniature bellows shaft coupling 4, upper workplace 6, angular displacement sensor 9 is driven to rise together.Because rising each time can cause angular displacement sensor 9 axial float in measuring process, the angle that the angle that angular displacement sensor 9 will be caused to rotate and multiteeth indexing table 2 rotate is unequal, will cause measuring error.This device adopts ball spline pair 3, make in measuring process, upper fluted disc rises and the spline housing 32 of ball spline pair 3 will be driven to rise, and splined shaft 31, Miniature bellows shaft coupling 4, upper workplace 6 and to be arranged on workplace 6 motionless by school angular displacement sensor 9, guarantee axially can not produce relative movement in measuring process, thus the accuracy of measurement ensured.Three, because spline housing 32 and splined shaft 31 are interference fit, ball spline pair 3 can by the clearance control of sense of rotation in zero stand-off or interference, and the angle that this guarantees the positive and negative rotation of angular displacement sensor 9 is identical with the standard angle of the positive and negative rotation of multiteeth indexing table 2.
Miniature bellows shaft coupling 4(pinching): mainly contain three functions, first, linkage function: one end connects by school angular displacement sensor 9 turning axle, the other end connects splined shaft 31.Guarantee that the turning axle of angular displacement sensor 9 is coaxial with splined shaft 31 when the second, connecting.Three, lightweight: because Miniature bellows shaft coupling 4 one end is connected directly between the turning axle of angular displacement sensor 9, if too heavy, just likely the housing of the turning axle of angular displacement sensor 9 and angular displacement sensor 9 is come off.This device select high flexibility high-class stainless steel material to make shaft coupling (Germany produce, model is respectively: MK-2-100-φ 6-φ 20), this shaft coupling is applicable to scrambler, micromachine, Minitype transmission axle, microsensor, Miniature precision occasion, be a kind of accurate shaft coupling of miniature flexible of integral structure gapless driving, and installation Concentricity tolerance can be absorbed largely.Axis hole adopts clamped-in style structure, guarantees gapless and the synchronism of transmission.This shaft coupling weight is about 125g, and radial missing is 0.3mm, and axial deviation is 1.2mm, and angular deviation is 2 °.The shaft diameter size of most angular displacement sensor is 6mm, but also the diameter of the axle of segment angle displacement transducer is 8mm or 10mm, so this device also provided MK-2-100-φ 8-φ 20 and MK-2-100-φ 10-φ 20 two kinds of Miniature bellows shaft couplings (pinching).
Column 5: Main Function supports upper workplace 6, guarantees upper workplace 6 level, so that the rotational axis vertical of angular displacement sensor 9 is downward.This column 5 makes " L " property structure by 45# steel, this L-type verticality of stand column is all less than 8 μm/200mm, right-angle side: 380 × 100 × 15, low right-angle side: 85 × 100 × 10, low right-angle side has screw hole, by bolt, column 5 is fixed on upper marble flat board 1, right-angle side also has screw hole M4, be used for fixing workplace 6.
Upper workplace 6: be used to install measured piece---angular displacement sensor 9, this workplace is made up of (400 × 100 × 12) mm aluminium alloy.
Multifunction digital indicating meter 8: be used for measured angular displacement transducer 9 output signal, the signal of output is generally electric current, voltage or resistance value.This device is 6.5 high accuracy number multimeters (model 8846A, manufacturing firms: FLUCK, Vdc accuracy reaches 0.0024%).
To 0 grade of 720 type vertical shaft type multiteeth indexing table that this device adopts, its largest divisions interval error is 0.2 ", then this device provides the dividing apparatus error of indication≤0.2 ".Meet the device specified in national regulation JJF1352-2012 " angular displacement sensor " calibrating standard far away and the dividing apparatus error of indication≤4 must be provided " requirement.
As described in Figure 2, the calibration process of angular displacement sensor 9 is as follows:
The angular displacement sensor 9 be calibrated is placed on the upper workplace 6 of level, first with Miniature bellows shaft coupling 4 angular displacement sensor 9 rotating shaft is connected with splined shaft 31 and clamps, then with gland 7, angular displacement sensor 9 being fixed on upper workplace 6.Corresponding Miniature bellows shaft coupling 4 should be selected according to the diameter of the turning axle of angular displacement sensor 9, Miniature bellows shaft coupling 4 one end is connected with angular displacement sensor 9, the other end is connected with splined shaft 31 and clamps, just can calibrate calibration point according to the calibration steps of the regulation of JJF1352-2012 " angular displacement sensor " calibrating standard, after having calibrated, the method specified according to specification carries out data processing, just can obtain the results such as the linearity of this angular displacement sensor 9, hysterisis error and repeatability.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (8)
1. a calibrating device for angular displacement sensor, it is characterized in that, comprise flat board, vertical shaft type multiteeth indexing table, two columns, ball spline pair, Miniature bellows shaft coupling, Multifunction digital indicating meter, gland, upper workplace, described column is fixed on flat board, workplace is provided with above described column, described upper workplace is provided with by school angular displacement sensor, described gland is fixing by school angular displacement sensor, described flat board is provided with vertical shaft type multiteeth indexing table and Multifunction digital indicating meter, internal thread is provided with in the center pit of described vertical shaft type multiteeth indexing table, spline housing one end of described ball spline pair has external thread axle, described external thread axle is connected with vertical shaft type multiteeth indexing table, the splined shaft of described ball spline pair is connected with by the turning axle of school angular displacement sensor by Miniature bellows shaft coupling.
2. a kind of calibrating device for angular displacement sensor according to claim 1, it is characterized in that, the screw thread of described spline housing one end external thread axle matches with the internal thread of vertical shaft type multiteeth indexing table center pit, and the length of described external thread axle differs 1mm with the length of vertical shaft type multiteeth indexing table center pit.
3. a kind of calibrating device for angular displacement sensor according to claim 2, is characterized in that, described spline housing and splined shaft are interference fit.
4. a kind of calibrating device for angular displacement sensor according to claim 1, is characterized in that, described Miniature bellows shaft coupling is pinching.
5. a kind of calibrating device for angular displacement sensor according to claim 1, is characterized in that, the material of described Miniature bellows shaft coupling is stainless steel.
6. a kind of calibrating device for angular displacement sensor according to claim 1, is characterized in that, described column is " L " type column, comprises right-angle side and end right-angle side, and right-angle side of the described end is bolted on flat board.
7. a kind of calibrating device for angular displacement sensor according to claim 1, is characterized in that, described flat board is marble flat board or cast iron surface plate.
8. a kind of calibrating device for angular displacement sensor according to claim 1, is characterized in that, the material of described upper workplace is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208423.2U CN204479056U (en) | 2015-04-08 | 2015-04-08 | A kind of calibrating device for angular displacement sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520208423.2U CN204479056U (en) | 2015-04-08 | 2015-04-08 | A kind of calibrating device for angular displacement sensor |
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| CN204479056U true CN204479056U (en) | 2015-07-15 |
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| CN201520208423.2U Expired - Fee Related CN204479056U (en) | 2015-04-08 | 2015-04-08 | A kind of calibrating device for angular displacement sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151694A (en) * | 2017-12-20 | 2018-06-12 | 西安航天计量测试研究所 | Angular displacement sensor automated calibration system and method |
| CN108515029A (en) * | 2018-04-19 | 2018-09-11 | 东莞市钺河自动化科技有限公司 | Weight torsion logical formula encoder detection machine |
| CN109186498A (en) * | 2018-02-11 | 2019-01-11 | 上海机动车检测认证技术研究中心有限公司 | A kind of integrated correction device |
| CN109870121A (en) * | 2019-04-01 | 2019-06-11 | 长春理工大学 | Angular displacement sensor angle detecting method based on program-controlled multiteeth indexing table |
| CN112697189A (en) * | 2020-12-16 | 2021-04-23 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Clamp for calibrating angular displacement sensor |
| CN114705149A (en) * | 2022-03-30 | 2022-07-05 | 武汉达安科技有限公司 | Device and method for calibrating angle and angular speed of steering robot |
-
2015
- 2015-04-08 CN CN201520208423.2U patent/CN204479056U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151694A (en) * | 2017-12-20 | 2018-06-12 | 西安航天计量测试研究所 | Angular displacement sensor automated calibration system and method |
| CN109186498A (en) * | 2018-02-11 | 2019-01-11 | 上海机动车检测认证技术研究中心有限公司 | A kind of integrated correction device |
| CN109186498B (en) * | 2018-02-11 | 2024-04-30 | 上海机动车检测认证技术研究中心有限公司 | Comprehensive calibration device |
| CN108515029A (en) * | 2018-04-19 | 2018-09-11 | 东莞市钺河自动化科技有限公司 | Weight torsion logical formula encoder detection machine |
| CN109870121A (en) * | 2019-04-01 | 2019-06-11 | 长春理工大学 | Angular displacement sensor angle detecting method based on program-controlled multiteeth indexing table |
| CN112697189A (en) * | 2020-12-16 | 2021-04-23 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Clamp for calibrating angular displacement sensor |
| CN114705149A (en) * | 2022-03-30 | 2022-07-05 | 武汉达安科技有限公司 | Device and method for calibrating angle and angular speed of steering robot |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |