CN102562795A - Precise rotary table bearing with time grating detection and control - Google Patents
Precise rotary table bearing with time grating detection and control Download PDFInfo
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- CN102562795A CN102562795A CN2012100017018A CN201210001701A CN102562795A CN 102562795 A CN102562795 A CN 102562795A CN 2012100017018 A CN2012100017018 A CN 2012100017018A CN 201210001701 A CN201210001701 A CN 201210001701A CN 102562795 A CN102562795 A CN 102562795A
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Abstract
The invention discloses a precise rotary table bearing with time grating detection and control, which comprises a precise rotary table. The precise rotary table consists of a second moving coil (1), a static coil (3), a first moving coil (4), a first group of cylindrical rollers (5), a second groups of cylindrical rollers (6) and a third groups of cylindrical rollers (8), wherein the second moving coil is installed on the upper end surface of the first moving coil, the static coil is installed among the lower end surface of the second moving coil, the thrust rolling track surface of the first moving coil and the external diameter rolling track of the first coil, the first groups of cylindrical rollers are installed between the lower end surface of the static coil and the thrust rolling track surface of the first moving coil, the second groups of cylindrical rollers are installed between the external diameter rolling track of the first coil and an inner diameter of the static coil, the third groups of cylindrical rollers are installed between the upper end surface of the static coil and the lower end surface of the second moving coil, and division teeth are arranged on the external circle of the second moving coil. The upper end surface of the static coil is provided with a time grating sensor (2) which transmits detected clock pulse signals to a microprocessor, so that high-precision detection, control and positioning for the precise rotary table are achieved through a control system, and rotating angles or moving radians of the precise rotary table can be detected and controlled in time.
Description
Technical field
The invention belongs to precision rotating platform technical field, relate generally to be a kind of with the time grid measuring and control device the precise rotating platform bearing.
Technical background
Precision rotating platform bearing be mainly used in running accuracy require high, axially, radial load is big and have on the equipment of tilting moment; Like fields such as numerical control machining center turntable, radar rotating platform, medical turntable, precision machine tools; Because support unit---the precise rotating platform bearing of this kind equipment; In transmission process, receive the influence of factors such as fatigue, wearing and tearing, its running accuracy can reduce gradually, and the renders operation error strengthens gradually.The measure that present this type of problem of solution is taked is: confirm the angle of precise rotating platform running or rotate radian through measuring system is set.But since existing measuring system adopted be magnetic grid, steel grid, grating etc., and this type measuring system is higher to environment requirement, the measuring system precision is the highest can only to be reached ± 3 rads, can not satisfy actual highi degree of accuracy needs.
Summary of the invention
The object of the invention produces thus, propose a kind of with the time grid observing and controlling the precise rotating platform bearing.Through the time gate sensor pivotal position of detecting bearing confirm or control angle or the rotation radian that precise rotating platform turns round; Realization is to the highi degree of accuracy observing and controlling of precise rotating platform; Full accuracy reaches 0.8 rad, and can be at the immersion oil environment, proper functioning under impact, vibration and the aqueous vapor environment.
The present invention realizes that the technological scheme that above-mentioned purpose is taked is: a kind of with the time grid-control system the precise rotating platform bearing comprise by second moving-coil, Jing Quan, first moving-coil, first group of cylindrical roller; Second group of cylindrical roller and the 3rd group of precise rotating platform bearing that cylindrical roller constitutes; Said second moving-coil is installed on the first moving-coil upper-end surface; Jing Quan is installed in below second moving-coil and above the thrust raceway of first moving-coil and between the first moving-coil external diameter raceway; First group of cylindrical roller is installed between the Jing Quan lower end surface and the first moving-coil thrust roller surface, and second group of cylindrical roller is installed between the external diameter raceway and quiet circle internal diameter of first moving-coil, and the 3rd group of cylindrical roller is installed between the Jing Quan upper-end surface and the second moving-coil lower end surface; On the cylindrical of said second moving-coil, be provided with the five equilibrium tooth; Gate sensor when on the upper-end surface of said Jing Quan, installing, the time gate sensor be transferred to microprocessor to detected clock pulse signal, through highi degree of accuracy observing and controlling and the location of control system realization to the precision rotating platform.
Gate sensor is installed on the upper-end surface of Jing Quan through bolt when said.
The outer distance of round of interior distance of round second moving-coil of gate sensor is less than 0.5mm when said.
The present invention is reasonable in design, and is simple in structure, owing in the bearing set inside radially cylindrical roller of two row cylindrical roller thrusts and one groups is arranged, therefore can bear axially, radial load and tilting moment; Because second moving-coil of precise rotating platform bearing is provided with the five equilibrium tooth, displacement transducer when on Jing Quan, being equipped with is when second moving-coil rotates; Through moving of certain point on the five equilibrium tooth; Be installed on the Jing Quan the time gate sensor through the time displacement transducer collect signal and with being used of microprocessor, in time be delivered to the signal that monitors in the apparatus control system, can see concrete displacement parameter above the display screen of control system; After control system compares through value of feedback and setting value; Offset deviation amount to producing is compensated by numerical control system, thus, realizes highi degree of accuracy observing and controlling and location to the precision rotating platform.Reach the running angle of timely monitoring precise rotating platform rotation or the purpose of rotation radian.Because gate sensor structure when Detecting element is is therefore lower to the working environment requirement, can be at the high and low temperature environment, immersion oil environment, aqueous vapor environment, vibration environment, proper functioning under the environment such as impact.
Description of drawings
Grid detection architecture schematic representation when Fig. 1 is of the present invention.
Fig. 2 is a schematic top plan view of the present invention.
Among the figure: 1, second moving-coil, 2, the time gate sensor, 3, Jing Quan, 4, first moving-coil, 5, first groups of cylindrical rollers, 6, second groups of cylindrical rollers, 7, microprocessor, 8, the 3rd groups of cylindrical rollers.
Embodiment
In conjunction with accompanying drawing, the embodiment of the invention is elaborated.
During a kind of band under the present embodiment grid observing and controlling precise rotating platform bearing by second moving-coil 1, the time gate sensor 2, quiet circle 3, first moving-coil 4, first group of 5, the second groups of cylindrical roller 6 of cylindrical roller, 7, the three groups of cylindrical rollers of microprocessor, 8 formations.Second moving-coil 1 is installed on first moving-coil, 4 end faces, on the cylindrical of bearing second moving-coil, is processed with and is uniformly distributed with the five equilibrium tooth, and this five equilibrium tooth and second moving-coil are overall structure; Or on the cylindrical of bearing second moving-coil, be equipped with and be uniformly distributed with the five equilibrium tooth, this five equilibrium tooth and second moving-coil are for dividing a body structure.The five equilibrium gear ring is a permeability magnetic material.Gate sensor just can be collected the clock pulse signal that certain point moves on the moving-coil in the time of like this, supplies measuring accuracy to use.Jing Quan is installed in below second moving-coil and above the thrust raceway of first moving-coil and between the first moving-coil external diameter raceway; The upper-end surface of Jing Quan, lower end surface and internal diameter are used for supporting three groups of cylindrical rollers respectively; First group of cylindrical roller is installed between the Jing Quan lower end surface and the first moving-coil thrust roller surface; Second group of cylindrical roller is installed between the external diameter and quiet circle internal diameter of first moving-coil; The 3rd group of cylindrical roller is installed between the Jing Quan upper-end surface and the second moving-coil lower end surface, is used to bear axially, radial load and tilting moment.The time gate sensor 2 be installed in through bolt on the upper-end surface of quiet circle 3, the outer distance of round of distance of round second moving-coil is less than 0.5mm in the sensor.The time gate sensor 2 and microprocessor 7 all adopt is known technology, microprocessor 7 is placed in the cabinet, an end pass through datawire with the time gate sensor 2 be connected, the other end is connected with control system.
During use, first moving-coil and second moving-coil of bearing rotate with traverse platform, and three groups of cylindrical rollers also rotate together.Because second moving-coil of precise rotating platform bearing is provided with the five equilibrium tooth; Jing Quan is last gate sensor when being equipped with; Through the time displacement transducer collect signal and with being used of microprocessor 7; In time be delivered to the signal that monitors in the apparatus control system and (can see concrete displacement parameter above the display screen of control system), after control system compares through value of feedback and setting value, the offset deviation amount that produces is compensated by numerical control system; Thus, realization is to the highi degree of accuracy observing and controlling and the location of precision rotating platform.Reach the running angle of timely monitoring precise rotating platform rotation or the purpose of rotation radian.Because gate sensor structure when Detecting element is is therefore lower to the working environment requirement, can be at the high and low temperature environment, immersion oil environment, aqueous vapor environment, vibration environment, proper functioning under the environment such as impact.
Claims (5)
- One kind with the time grid-control system the precise rotating platform bearing; Comprise by second moving-coil (1), Jing Quan (3), first moving-coil (4), first group of cylindrical roller (5); The precise rotating platform bearing that second group of cylindrical roller (6) and the 3rd group of cylindrical roller (8) constitute; Said second moving-coil is installed on the first moving-coil upper-end surface, and Jing Quan is installed in below second moving-coil and above the thrust raceway of first moving-coil and between the first moving-coil external diameter raceway, first group of cylindrical roller is installed between the Jing Quan lower end surface and the first moving-coil thrust roller surface; Second group of cylindrical roller is installed between the external diameter raceway and quiet circle internal diameter of first moving-coil; The 3rd group of cylindrical roller is installed between the Jing Quan upper-end surface and the second moving-coil lower end surface, it is characterized in that: on the cylindrical of said second moving-coil (1), be provided with the five equilibrium tooth, gate sensor in the time of on the upper-end surface of said Jing Quan (2); The time gate sensor be transferred to microprocessor to detected clock pulse signal, realize highi degree of accuracy observing and controlling and location through control system to the precision rotating platform.
- 2. the precise rotating platform bearing of grid-control system during according to claim 1 being with, it is characterized in that: gate sensor when said (2) is installed on the upper-end surface of Jing Quan through bolt.
- 3. the precise rotating platform bearing of grid-control system during according to claim 1 being with is characterized in that: the outer distance of round of interior distance of round second moving-coil of gate sensor when said (2) is less than 0.5mm.
- 4. the precise rotating platform bearing of grid-control system during according to claim 1 being with, it is characterized in that: five equilibrium tooth that said second moving-coil (1) cylindrical is provided with and second moving-coil (1) are overall structure.
- 5. the precise rotating platform bearing of grid-control system during according to claim 1 being with is characterized in that: five equilibrium tooth that said second moving-coil (1) cylindrical is provided with and second moving-coil (1) are for dividing body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100017018A CN102562795A (en) | 2012-01-05 | 2012-01-05 | Precise rotary table bearing with time grating detection and control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100017018A CN102562795A (en) | 2012-01-05 | 2012-01-05 | Precise rotary table bearing with time grating detection and control |
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| Publication Number | Publication Date |
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| CN102562795A true CN102562795A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100017018A Pending CN102562795A (en) | 2012-01-05 | 2012-01-05 | Precise rotary table bearing with time grating detection and control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103410873A (en) * | 2013-07-31 | 2013-11-27 | 如皋市非标轴承有限公司 | Built-in engineering machinery slewing bearing structure |
| CN105423077A (en) * | 2015-12-15 | 2016-03-23 | 中国科学院西安光学精密机械研究所 | Vertical shaft system of precise rotary table |
| CN109667833A (en) * | 2019-01-25 | 2019-04-23 | 董倩 | A kind of new-type rolling bearing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201953839U (en) * | 2011-03-02 | 2011-08-31 | 洛阳鸿元轴承科技有限公司 | Bi-directional thrust cylindrical roller combined bearing added with steel grid ruler |
| CN102252055A (en) * | 2011-06-29 | 2011-11-23 | 洛阳世必爱特种轴承有限公司 | Worm wheel-worm transmission unit with controllable device |
| CN202091378U (en) * | 2011-05-17 | 2011-12-28 | 大连光洋科技工程有限公司 | Rotary table bearing with angle measurement system |
| CN202659722U (en) * | 2012-01-05 | 2013-01-09 | 洛阳世必爱特种轴承有限公司 | Precise turntable bearing for time grating monitoring and control |
-
2012
- 2012-01-05 CN CN2012100017018A patent/CN102562795A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201953839U (en) * | 2011-03-02 | 2011-08-31 | 洛阳鸿元轴承科技有限公司 | Bi-directional thrust cylindrical roller combined bearing added with steel grid ruler |
| CN202091378U (en) * | 2011-05-17 | 2011-12-28 | 大连光洋科技工程有限公司 | Rotary table bearing with angle measurement system |
| CN102252055A (en) * | 2011-06-29 | 2011-11-23 | 洛阳世必爱特种轴承有限公司 | Worm wheel-worm transmission unit with controllable device |
| CN202659722U (en) * | 2012-01-05 | 2013-01-09 | 洛阳世必爱特种轴承有限公司 | Precise turntable bearing for time grating monitoring and control |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103410873A (en) * | 2013-07-31 | 2013-11-27 | 如皋市非标轴承有限公司 | Built-in engineering machinery slewing bearing structure |
| CN103410873B (en) * | 2013-07-31 | 2015-09-02 | 如皋市非标轴承有限公司 | A kind of built-in engineering machinery pivoting support structure |
| CN105423077A (en) * | 2015-12-15 | 2016-03-23 | 中国科学院西安光学精密机械研究所 | Vertical shaft system of precise rotary table |
| CN109667833A (en) * | 2019-01-25 | 2019-04-23 | 董倩 | A kind of new-type rolling bearing |
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Application publication date: 20120711 |