CN201812183U - Angular displacement measuring and controlling device for revolving platform - Google Patents
Angular displacement measuring and controlling device for revolving platform Download PDFInfo
- Publication number
- CN201812183U CN201812183U CN2010201686222U CN201020168622U CN201812183U CN 201812183 U CN201812183 U CN 201812183U CN 2010201686222 U CN2010201686222 U CN 2010201686222U CN 201020168622 U CN201020168622 U CN 201020168622U CN 201812183 U CN201812183 U CN 201812183U
- Authority
- CN
- China
- Prior art keywords
- control system
- sensor
- angular displacement
- bearing unit
- panoramic table
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
An angular displacement measuring and controlling device for a revolving platform comprises a platform board of the revolving platform, a supporting seat of the revolving platform, a bearing unit, a control system, a driving device and a fixed bracket, wherein the action of the driving device is controlled by a signal of the control system; the bearing unit is arranged between the platform board and the supporting seat; the fixed bracket is arranged on the supporting seat around the outer wall or the inner wall of the bearing unit; a magnetic scale is arranged on the inner wall or the outer wall of a moving ring of the bearing unit; at least a sensor is arranged on the fixed bracket opposite to the magnetic scale; and the signal output terminal of the sensor is accessed to the control system. According to the utility model, a measuring device is arranged on the revolving platform and is combined with the control system to form a brand-new high-precision revolving bearing unit with angle controlling and measuring functions; and because the magnetic scale is arranged on the bearing body and is combined with the sensor to measure and monitor the bearing in real time and feed an angular displacement signal back to the control system, the work precision of the revolving platform can be improved.
Description
Technical field
The utility model relates to a kind of precision rotating platform, specifically a kind of angular displacement measuring and controlling device of panoramic table.
Background technology
At present, the precision rotating platform is mainly used in the field of high precision rotation and control, for example; Numerically-controlled machine and numerical control machining center turntable, tank turret, the radar universal stage, the operation universal stage, field of electronic components welding turntable etc., the transmission accuracy that the equipment of these types is all had relatively high expectations, and cooperate high-precision bearing to finish each action, therefore, in practical operation, since drive disk assembly because of fatigue wear after, its precision will reduce gradually, operate miss strengthens gradually, have serious consequences thus, for this reason, rotary part stressed in the element of employing sensor that people expected and so on and this equipment combines, detect the vibrations on it, rotating speed, parameters such as temperature, the duty of analyzing inner driving member (for example: the degree of wear), Chinese patent for example: a kind of sensor bearing, application number is 200910100833.4, it has introduced a kind of sensor bearing structure that utilizes Hall element and multi-pole magnet-ring to detect bearing rotating speed and rotation direction, what this kind method solved only is the individual event problem, only can check and analysis learn whether parts are in normal operating conditions, can't fundamentally solve the not high problem of its rotation angle displacement accuracy, how to design a closed-loop control angle displacement measurement system, when guaranteeing the driving member operating accuracy, and to its measurement monitoring in real time, and feedback then is that a difficult problem to be solved is arranged always.
The utility model content
The deficiency that the purpose of this utility model is intended to solve the problems of the technologies described above provides a kind of angular displacement measuring and controlling device of panoramic table, its running accuracy height, convenient and flexible installation, and in the rotary work process, can measure in real time, and angular displacement signal is fed back to control system, realize closed-loop control.
The utility model is for solving the problems of the technologies described above, the technical scheme that is adopted is: a kind of angular displacement measuring and controlling device of panoramic table, the platen that comprises panoramic table, the supporting base of panoramic table, bearing unit, control system, drive unit and fixed mount, the action of drive unit is by the signal controlling of control system, between platen and supporting base, be provided with bearing unit, fixed mount is arranged on the supporting base around the outer wall or the inwall of bearing unit, on the inwall of the moving-coil of bearing unit or outer wall, be provided with magnetic railings ruler, at least be provided with a sensor, the signal output part access control system of sensor on the fixed mount of magnetic railings ruler relatively.
Described magnetic railings ruler is a circumferential body, is made up of retainer plate, magnetic material and metal coating surface layer, and retainer plate is arranged on the inwall or the outer wall surface of moving-coil in the bearing unit, and magnetic material is arranged between retainer plate and the metal coating surface layer.
Described magnetic material has the magnetized surface that N, the S utmost point are arranged alternately.
Gap between described sensor and the magnetic railings ruler is 0.1mm-1mm.The difference of the variation of precision and workplace as requested, the gap can also be amplified, and maximum can arrive 10mm.
Described sensor comprises a highly integrated Hall chip and a shell, and Hall chip encapsulates in the enclosure, is integrated with Hall element and signal processing circuit in this Hall chip.
The beneficial effects of the utility model are:
1, measurement mechanism is set on panoramic table, and in conjunction with brand-new control of band angle and the high-precision rotary bearing unit of measuring of control system formation, by magnetic railings ruler is set on bearing body, and combined sensor is measured monitoring in real time to bearing, and angular displacement signal fed back to control system, thereby improved the operating accuracy of precision rotating platform.
2, when adopting two or more sensors to be distributed in the bearing circumference, can effectively prevent because operating force makes the raceway system produce amount of deflection to measuring the influence that produces, sensor is measured in real time signal is transferred to external control system, effectively improves measuring accuracy.
3, the magnetic railings ruler described in the utility model adopts three-decker; its matrix is the steel fixed bed; apply the magnetic material layer of one deck above the steel substrate at it; at its outermost layer one deck clad stainless steel cover fillet that also bonds; thereby magnetic surface is protected; make the utility model guarantee the long-life that it is never wornout to environmental requirement not high (dust, iron filings and humidity all require insensitive), the non-contacting magnetic mode (more than the 0.1～1mm of gap) of reading: secondly the steel fixed bed directly matches with bearing surface; easy for installation; need not supplementary structure, flexible.
4, at the built-in plus signal treatment circuit of sensor, in rotary course, change by magnetic flux and in Hall element, to produce voltage signal, voltage signal is transferred to signal processing circuit, according to magnetic pole logarithm set on the whole magnetic railings ruler, be calculated to be the digital signal that has angular displacement through signal processing circuit and feed back to control system, control system compares by value of feedback and set-point, the departure that produces is compensated by drive unit, form closed-loop control, thereby reached the purpose of accurate angle displacement measurement, control.And the angular displacement signal of this sensor output can select cosine and sine signal or TTL pulse signal, can match with domestic and international various digital control systems.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the cut-open view of first kind of embodiment combining with measurement mechanism of the utility model centre bearer unit.
Fig. 3 is the cut-open view of second kind of embodiment combining with measurement mechanism of the utility model centre bearer unit.
Mark among the figure: 1, platen, 2, supporting base, 3, bearing unit, 4, control system, 5, drive unit, 6, measurement mechanism, 7, magnetic railings ruler, 8, sensor, 9, moving-coil, 10, Jing Quan, 11, rolling body, 12, fixed mount.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of angular displacement measuring and controlling device of panoramic table, the platen 1 that comprises panoramic table, the supporting base 2 of panoramic table, bearing unit 3, control system 4, drive unit 5 and fixed mount 12, the action of drive unit 5 is by the signal controlling of control system 4, between platen 1 and supporting base 2, be provided with bearing unit 3, fixed mount 12 is arranged on the supporting base 2 around the outer wall or the inwall of bearing unit 3, on the inwall of the moving-coil 9 of bearing unit 3 or outer wall, be provided with magnetic railings ruler 7, at least be provided with a sensor 8, the signal output part access control system 4 of sensor 8 on the fixed mount 12 of magnetic railings ruler 7 relatively.
The utility model, magnetic railings ruler 7 have two kinds of set-up modes: a kind of external diameter surface and inside diameter surface that directly is arranged on moving-coil 9 in the form of a ring; Another kind is to be arranged in the form of a ring on the periphery of working plate 1, and corresponding magnetic railings ruler 7 is provided with sensor 8, and sensor 8 is located on the fixed mount 12, and fixed mount 12 is connected with supporting base 2 by bolt or alternate manner.
The utility model, the radial position of described fixed mount 12 its corresponding magnetic railings rulers 7 is provided with the sensor mounting hole, and the quantity of mounting hole disposes according to the quantity of required sensor.
The utility model, described moving-coil is the parts that are connected with working plate in the bearing unit, is and follows the working plate parts that rotate in the course of the work; Described Jing Quan is the parts that are connected with supporting base in the bearing, is static relatively in the course of the work parts.
Fig. 2 is a kind of structure of outer sensor, different according to occasion of using and precision prescribed, can adopt single-sensor, dual sensor, four or more multisensor arrange, when precision prescribed is lower slightly, can adopt single-sensor to get final product, when the high-accuracy angle displacement measurement of equipment requirements, can adopt dual sensor or more, it must be oppositely arranged on the fixed mount when adopting the dual sensor device, can improve measuring accuracy.
As shown in Figure 3, it is a kind of built-in sensors structure, when the sensor installation is subjected to space constraint, can adopt this kind structure.
Magnetic railings ruler described in the utility model, magnetic material layer on it has the magnetized surface that N, the S utmost point are arranged alternately, and the N on it, S extremely equidistantly distribute, and the quantity of pole pair is set according to the control accuracy of equipment needs, precision prescribed is high more, and the quantity that pole pair is set should be many more.
The utility model, the gap between described sensor and the magnetic railings ruler are 0.1mm-1mm, and the precision of equipment requirements angle displacement measurement is high more, and its gap should be more little.The difference of the variation of precision and workplace as requested, the gap can also be amplified, and maximum can arrive 10mm.
The utility model; described sensor 8 comprises a highly integrated Hall chip and a shell; described Hall chip encapsulation in the enclosure; described sensor is provided with a shell; shell can adopt PVC material or zine pressure casting; protection class is up to IP67, and anti-interference grade meets 3 grades of IEC801 international standards.Be provided with Hall chip in the enclosure, be integrated with two Hall elements and signal processing circuit in this Hall chip, signal processing circuit mainly is made of differentiating circuit and integrating circuit, in the rotary course, the Hall element induced flux changes and the generation voltage signal, voltage signal is transferred to signal processing circuit, according to magnetic pole logarithm set on the whole magnetic railings ruler, be the digital signal that has angular displacement and become rotation angle value in the signal processing circuit internal conversion through the internal circuit cumulative calculation, feed back to control system, control system just can be learnt its actual rotation angle value and the departure of setting the running angle value, revise, readjust device parameter, thereby reached accurate angle displacement measurement, the purpose of control.
Owing on the whole ring-type magnetic railings ruler a plurality of pole pairs are set evenly, the quantity that pole pair is set is determined according to desired precision, when the equipment requirements precision is high more, should need the pole pair of setting close more, the Hall element induced flux changes and the generation voltage signal, according to magnetic pole logarithm set on the whole magnetic railings ruler, each signal can be converted into a pre-determined angular displacement, with the rudimentary horn position is reference point, can be in signal processing circuit the angled increment of cumulative calculation, feed back to control system thereafter.
Method of operating is: when CNC setting working plate rotated 15 °, after motion stopped, the data that measuring system feeds back to CNC were 14.5 °, and then CNC readjusts parameter, implemented to revise departure, thereby had realized the purpose of closed-loop control.
The utility model, described bearing must be selected high-precision bearing for use, only is engaged on the high-precision bearing and could realizes accurate angle displacement measurement, can select any one of combination roller bearing, crossing cylinder roller bearing or crossed-circle taper roller bearing for use.
The utility model, the principle of work of its closed-loop control is: working plate is in rotary course, the moving-coil of bearing is rotation synchronously simultaneously, therefore the magnetic railings ruler on it produces the magnetic line of force, the Hall element induced flux changes the generation voltage signal, and voltage signal is transferred to signal processing circuit, be angular displacement signal by conversion within it and add up, then input to control system, control system compares by value of feedback and set-point, the departure that produces is compensated by drive unit, form closed-loop control, reach the purpose of accurate pilot angle displacement.
Sensor described in the utility model can be provided with in pairs, be oppositely arranged on the circumference of bearing respectively, prevent to have influence on measurement result, therefore adopt the relative installation of two or more sensors can effectively improve measuring accuracy because operating force makes the raceway system produce amount of deflection.
The utility model is overall construction design with turning unit and measurement mechanism, and after the processing of the signal processing circuit in sensor, the digital signal that has angular displacement directly feeds back to control system, therefore can be widely used in the numerically-controlled machine that has a large capacity and a wide range, carry out development test with its precise rotating platform as the bearing unit carrier, after obtaining achievement, with other machinery or the apparatus that is applied to need accurate angle displacement control and measure, as Precision Machining center, tank turret, radar universal stage, operation universal stage, field of electronic components welding turntable etc.
The utlity model has environmental requirement not high (dust, iron filings and humidity all require insensitive), non-contacting reading the long-life that the magnetic mode has guaranteed that it is never wornout; Gather magnetic signal (resolution is the highest can to reach 0.001mm) by high resolution sensor in addition, and after inter-process converts digital signal to input control system, thereby realize accurate control to working plate angular displacement precision, its angular displacement precision can reach ± and 3 "; along with the increase that the magnetic pole logarithm is set on the magnetic railings ruler, precision even can reach ± 1.5 " more than.
The utility model is when using when environmental baseline is better relatively, and for example dust, humidity and temperature etc. all reach requirement, grating can be replaced magnetic railings ruler, only need to change respective sensor, reach the purpose of closed-loop control equally, and precision can reach higher.
Claims (5)
1. the angular displacement measuring and controlling device of a panoramic table, the platen (1) that comprises panoramic table, the supporting base of panoramic table (2), bearing unit (3), control system (4), drive unit (5) and fixed mount (12), the action of drive unit (5) is by the signal controlling of control system (4), it is characterized in that: between platen (1) and supporting base (2), be provided with bearing unit (3), fixed mount (12) is arranged on the supporting base (2) around the outer wall or the inwall of bearing unit (3), on the inwall of the moving-coil (9) of bearing unit (3) or outer wall, be provided with magnetic railings ruler (7), at least be provided with a sensor (8), the signal output part access control system (4) of sensor (8) on the fixed mount (12) of magnetic railings ruler (7) relatively.
2. the angular displacement measuring and controlling device of a kind of panoramic table as claimed in claim 1; it is characterized in that: described magnetic railings ruler (7) is a circumferential body; form by retainer plate, magnetic material and metal coating surface layer; retainer plate is arranged on the inwall or the outer wall surface of moving-coil (9) in the bearing unit (3), and magnetic material is arranged between retainer plate and the metal coating surface layer.
3. the angular displacement measuring and controlling device of a kind of panoramic table as claimed in claim 2 is characterized in that: described magnetic material has the magnetized surface that N, the S utmost point are arranged alternately.
4. the angular displacement measuring and controlling device of a kind of panoramic table as claimed in claim 1, it is characterized in that: the gap between described sensor (8) and the magnetic railings ruler (7) is 0.1mm-1mm.
5. the angular displacement measuring and controlling device of a kind of panoramic table as claimed in claim 1, it is characterized in that: described sensor (8) comprises a highly integrated Hall chip and a shell, the Hall chip encapsulation is integrated with Hall element and signal processing circuit in the enclosure in this Hall chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201686222U CN201812183U (en) | 2010-03-12 | 2010-03-12 | Angular displacement measuring and controlling device for revolving platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201686222U CN201812183U (en) | 2010-03-12 | 2010-03-12 | Angular displacement measuring and controlling device for revolving platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812183U true CN201812183U (en) | 2011-04-27 |
Family
ID=43895123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201686222U Expired - Fee Related CN201812183U (en) | 2010-03-12 | 2010-03-12 | Angular displacement measuring and controlling device for revolving platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812183U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338165A (en) * | 2011-06-28 | 2012-02-01 | 洛阳轴研科技股份有限公司 | Reflection type control method for monitoring angular displacement of turnable bearing |
| CN103197687A (en) * | 2013-03-13 | 2013-07-10 | 洛阳轴研科技股份有限公司 | Angular displacement monitoring and controlling method when solid of revolution rotates |
| CN105651115A (en) * | 2015-12-31 | 2016-06-08 | 连云港杰瑞电子有限公司 | Double-shaft control device of chariot artillery |
| WO2023082268A1 (en) * | 2021-11-15 | 2023-05-19 | 爱佩仪测量设备有限公司 | High-precision rotary table and angle calibration method used thereby |
-
2010
- 2010-03-12 CN CN2010201686222U patent/CN201812183U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338165A (en) * | 2011-06-28 | 2012-02-01 | 洛阳轴研科技股份有限公司 | Reflection type control method for monitoring angular displacement of turnable bearing |
| CN103197687A (en) * | 2013-03-13 | 2013-07-10 | 洛阳轴研科技股份有限公司 | Angular displacement monitoring and controlling method when solid of revolution rotates |
| CN103197687B (en) * | 2013-03-13 | 2015-11-18 | 洛阳轴研科技股份有限公司 | Angular displacement monitoring and control method when a kind of solid of revolution rotates |
| CN105651115A (en) * | 2015-12-31 | 2016-06-08 | 连云港杰瑞电子有限公司 | Double-shaft control device of chariot artillery |
| WO2023082268A1 (en) * | 2021-11-15 | 2023-05-19 | 爱佩仪测量设备有限公司 | High-precision rotary table and angle calibration method used thereby |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101819421B (en) | Angular displacement measuring and controlling device for revolving platform | |
| CN101799042B (en) | Bearing unit for testing and controlling angular displacement of revolving platform | |
| CN201747773U (en) | Cylinder roller bearing unit for angle placement measurement and control | |
| US20140248014A1 (en) | Rolling bearing | |
| CN201812183U (en) | Angular displacement measuring and controlling device for revolving platform | |
| CN106052724B (en) | A kind of robot, rotary measurement device and method | |
| CN201387335Y (en) | Hall rotary encoder | |
| CN102501137B (en) | Online monitoring device for radial rotation accuracy of main shaft | |
| CN204440117U (en) | A kind of side putting type precision corner displacement pick-up unit voluntarily | |
| CN109141225A (en) | Shafting five, six degree of freedom error measurement method and measuring system based on Circular gratings | |
| CN104422384A (en) | Device and method for detecting rotation state | |
| CN102168966A (en) | Axis swing monitoring system for water-turbine generator set | |
| CN201810670U (en) | Crossed conical roller bearing unit for testing and controlling angular displacement | |
| CN102338165B (en) | Reflection type control method for monitoring angular displacement of turnable bearing | |
| CN110686641B (en) | Measuring device for a spindle or a turntable | |
| CN206578635U (en) | High speed and super precision machine tool chief axis, electro spindle incremental magnetic induction type bus type encoder | |
| CN106767956A (en) | High speed and super precision machine tool chief axis magnetic induction absolute value encoder and its measurement gear | |
| CN110006336A (en) | A kind of small-sized high dynamic high precision numeral output magnetism encoder and installation control method | |
| CN108827141A (en) | A kind of magnetic coding type non-contact angle/placement sensor | |
| CN201747778U (en) | Crossed cylinder roller bearing unit used for angular displacement measurement and control | |
| CN201953839U (en) | Bi-directional thrust cylindrical roller combined bearing added with steel grid ruler | |
| CN201802761U (en) | Radial roller and axial thrust tapered bearing unit for measuring and controlling angular displacement | |
| CN101655356B (en) | Graduation device for detecting surface shape of aspheric optical element | |
| CN206583466U (en) | High speed and super precision machine tool chief axis magnetic induction absolute value encoder and its measurement gear | |
| CN104165620B (en) | High-precision obliquity sensor with combined sensing elements |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20180312 |