CN103128561B - A kind of static pressure direct drive turning workbench - Google Patents
A kind of static pressure direct drive turning workbench Download PDFInfo
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- CN103128561B CN103128561B CN201310077937.4A CN201310077937A CN103128561B CN 103128561 B CN103128561 B CN 103128561B CN 201310077937 A CN201310077937 A CN 201310077937A CN 103128561 B CN103128561 B CN 103128561B
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Abstract
The present invention relates to a kind of static pressure direct drive turning workbench, comprise base and rotated the rotary disk being assemblied on base, axis and extending along the vertical direction by hydrostatic bearing, described hydrostatic bearing is arranged at the middle part of described rotary disk, is provided with at least one circle hydrostatic support guideway between described base and rotary disk in the periphery of hydrostatic bearing.The invention provides the little and static pressure direct drive turning workbench that axial bearing capacity is larger of a kind of rotary disk processing capacity.
Description
Technical field
The present invention relates to machining auxiliary equipment, especially design a kind of static pressure direct drive turning workbench.
Background technology
Current large-size numerical control machine is just towards high speed, high accuracy, heavy duty, the future development such as multi-shaft interlocked.Wherein high precision numerical control rotary table is the critical component of multi-shaft linkage numerical control machine, therefore the research of high precision numerical control rotary table technology is the emphasis of various countries' research competition, and it relates to the development of the industrial technologies such as national defence, precision optical machinery, electronics.
Existing rotary table structure " one directly drives static pressure rotary worktable " disclosed in Chinese patent literature CN202200044U, this rotary table comprises turntable housing, direct driving motor, hydrostatic bearing and rotation card, the stator of direct driving motor and the bearing fixed ring of hydrostatic bearing and turntable housing is fixing assembles, the rotor of direct driving motor is in transmission connection by chovr body and the outside rotating card, and the bearing rotating ring of hydrostatic bearing is assembled with rotation card is fixing by axial hydrostatic bearing rotating ring.During work, the direct driven rotary card of rotor of direct driving motor is rotated, and can reduce the energy loss in transmission process like this, decrease the accumulated error in transmission process simultaneously.But existing this rotary table Problems existing is: the axial force that the weight rotating card and the weight being arranged at the workpiece to be processed rotated in card produce is born by hydrostatic bearing completely, because the axial bearing capacity of hydrostatic bearing is limited, this just limits the axial bearing capacity rotating card, also limit the rotary speed rotating card, the rotary speed rotating card is slightly large, the axial runout rotating card just increases, and affects machining accuracy, simultaneously in order to realize the smooth rotation rotating card, the hydrostatic bearing rotating ring rotating the whole bottom surface of card very large with face area contacts completely, this just needs the whole bottom to rotation card coordinates with hydrostatic bearing rotating ring to process completely, the processing capacity rotating card is larger, difficulty of processing is high, simultaneously because the volume of hydrostatic bearing is very large, also cause the difficulty of processing of hydrostatic bearing large, cost is also higher, the area that is rotatably assorted that hydrostatic bearing rotating ring and hydrostatic bearing are located is large, too increase the resistance in hydrostatic bearing motion process, larger to the power demand of direct driving motor, the rotor ring of straight power taking machine is located at the periphery rotating card, and the axial line distance of rotor and rotation card is comparatively far away, drives in the process rotating card rotation, easily cause the shake of rotation card, affect machining accuracy at rotor, direct driving motor is arranged at the periphery rotating card and also easily causes direct driving motor to form electromagnetic interference to outside.
Summary of the invention
The object of the present invention is to provide a kind of rotary disk processing capacity little and the static pressure direct drive turning workbench that axial bearing capacity is larger,
In order to solve the problem, technical scheme of the present invention is:
A kind of static pressure direct drive turning workbench, comprise base and rotated the rotary disk being assemblied on base, axis and extending along the vertical direction by hydrostatic bearing, described hydrostatic bearing is arranged at the middle part of described rotary disk, is provided with at least one circle hydrostatic support guideway between described base and rotary disk in the periphery of hydrostatic bearing.
Described hydrostatic support guideway comprise be arranged at lower hydrostatic support guide rail on base and be arranged at bottom rotary disk, coordinate and the upper hydrostatic support guide rail of plane contact with lower hydrostatic support guide rail rotating support, the upper surface of described lower hydrostatic support guide rail is equipped with static pressure oil groove.
Described base comprises peripheral housing and is arranged at the middle part supporting in peripheral housing, and described middle part supporting is provided with direct driving motor, and the rotor of direct driving motor and the middle part of rotary disk are in transmission connection.
The supporting of described middle part comprises arranging with one heart successively from the inside to the outside and being the bearing mounting base of tube-in-tube structure, motor mount and guide rail and arranges seat, the bearing fixed ring of described hydrostatic bearing is fixedly arranged on the upper end of bearing mounting base, the stator of direct driving motor is fixedly arranged on the upper end of motor mount, and described hydrostatic support guideway is arranged at described guide rail and arranges between seat and rotary disk.
Described peripheral housing tip is provided with the lower seal bearing-surface of annular, and lower seal bearing-surface and hydrostatic support guideway interval are arranged, and is provided with the upper sealing bearing-surface coordinated with the rotary seal of described lower seal bearing-surface bottom described rotary disk.
The center of described rotary disk is provided with the bearing mounting hole coaxial with rotary disk, and the bearing rotating ring of described hydrostatic bearing is fixedly assemblied on the hole wall of described bearing mounting hole.
The outer peripheral face of described rotary disk is installed with magnetic grid; described base is installed with magnetic grid matching used magnetic grid read head in the periphery of described magnetic grid; described magnetic grid and the periphery of magnetic grid read head are covered with into the magnetic grid protective cover of hollow sleeve-like structure; the upper end of described magnetic grid protective cover is fixed on the rotary disk of described magnetic grid upper end; described base is provided with notch upward, the annular deep gouge to insert for described magnetic grid protective cover lower end, the hole wall of described annular deep gouge and described magnetic grid protective cover matched in clearance.
Beneficial effect of the present invention is: hydrostatic bearing is arranged at the middle part of rotary disk, by arranging hydrostatic support guideway in the periphery of hydrostatic bearing, the axial force that the weight of the weight of rotary disk and corresponding workpiece to be added is produced is shared by hydrostatic support guideway, thus increase the axial rigidity of rotary table, improve the axial bearing capacity of rotary table; In addition due to power of the sharing effect of hydrostatic support guideway, it is very large that hydrostatic bearing does not need to do, reduce the difficulty of processing of hydrostatic bearing, simultaneously owing to needing the area processed less bottom rotary disk, this reduces rotary disk, the processing capacity of base and difficulty of processing; Contact area between hydrostatic support guideway is little, and the resistance that rotary disk is subject in rotation process is less, is conducive to the speed of gyration reducing energy consumption and improve rotary disk.
Further, the rotor of direct driving motor and the middle part of rotary disk are in transmission connection, and reduce the distance between rotor and rotary disk axis, and rotor is when driving rotary disk to rotate, and rotary disk is not easily shaken, and contributes to the machining accuracy improving corresponding workpiece to be processed.
Further, direct driving motor take base as housing, and the peripheral housing of base can play good shielding action to direct driving motor, can not produce electromagnetic interference to external world.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of a kind of static pressure direct drive turning workbench in the present invention;
Fig. 2 is the I place enlarged drawing in Fig. 1.
Detailed description of the invention
A kind of embodiment of static pressure direct drive turning workbench is as shown in Figure 1 and 2: comprise base 15, direct driving motor, the rotary disk 2 that hydrostatic bearing and axis extend along the vertical direction, wherein base comprises peripheral housing 22 and is arranged at the middle part supporting in peripheral housing, middle part supporting comprises the bearing of trend connecting plate vertical with above-below direction and the concentric bearing mounting base 25 be arranged on connecting plate successively from the inside to the outside, motor mount 24 and guide rail arrange seat 23, bearing mounting base, motor mount, guide rail arranges seat and peripheral housing is cannulated sleeve structure, the stator 4 of direct driving motor is fixedly assemblied on motor mount 24 by the first screw 16, the bottom of rotary disk is fixed in the upper end of the rotor 8 of direct driving motor by the second screw 5, the bearing fixed ring 12 of hydrostatic bearing is fixedly assemblied on bearing mounting base 25 by screw, the center of rotary disk is provided with the bearing mounting hole running through the upper and lower end face of rotary disk, the fixing assembling of bearing rotating ring 9 of hydrostatic bearing, with on the hole wall of bearing mounting hole, rotary disk 2 is fixedly equipped with the cover plate 10 of shutoff bearing mounting hole upper end notch by screw.The top of casing body 22 is provided with the lower seal bearing-surface 6 of annular outside, be provided with the upper sealing bearing-surface coordinated with the rotary seal of described lower seal bearing-surface bottom rotary disk, lower seal bearing-surface is provided with the hole 1 realizing the mechanical seal of upper and lower sealing bearing-surface.Guide rail arrange seat and rotary disk refer between be provided with a circle hydrostatic support guideway, hydrostatic support guideway comprise be arranged at lower hydrostatic support guide rail on base 7 and be arranged at bottom rotary disk, coordinate and the upper hydrostatic support guide rail of plane contact with lower hydrostatic support guide rail rotating support, the upper surface of lower hydrostatic support guide rail is equipped with the static pressure oil groove 3 for oil storage.The outer peripheral face of rotary disk offers magnetic grid mounting groove; magnetic grid 19 is installed with in magnetic grid mounting groove; base is installed with the matching used magnetic grid read head 21 with magnetic grid in the periphery of magnetic grid by the 3rd screw 20; magnetic grid and the periphery of magnetic grid read head are covered with into the magnetic grid protective cover 18 of hollow sleeve-like structure; the upper end of magnetic grid protective cover is fixed on the rotary disk 2 of magnetic grid upper end by rivet 17; base is provided with notch upward, for magnetic grid protective cover lower end insert annular deep gouge, the hole wall of annular deep gouge and magnetic grid protective cover matched in clearance.In figure, 11 represent hydrostatic bearing oil pocket; 13 represent adpting flange.
Peripheral housing, guide rail arrange seat, motor mount and bearing mounting base and are sleeve structure, not only reduce the weight of base, and also facilitate the setting of the parts such as hydrostatic support guideway, direct driving motor, hydrostatic bearing, each component layouts is rationally compact simultaneously; Direct driving motor take base as housing, does not need to arrange electric machine casing separately again, and simultaneously guide rail arranges seat and peripheral housing shields layer by layer to direct driving motor, ensure that direct driving motor can not produce electromagnetic interference to outside; The sealed rotational of upper and lower sealing bearing-surface coordinates the not only further axial force to rotary disk to share, and also ensure that the sealed environment of peripheral enclosure interior, contributes to the normal work of each parts in peripheral housing; Rotary disk adopts to the supporting of ventricle hydrostatic bearing, can make rotary disk stable movement, improves the centering precision of rotary disk; Magnetic grid is installed simple and easy, allows larger alignment error, easy to maintenance, and contamination resistance is good.The advantage of the application combines, closed hydrostatic slideway (bearing) technology, direct driving motor actuation techniques, magnetic Gate measuring technique for large-size numerical control machine turntable provides technology to support.Because the coefficient of friction of hydrostatic slideway is little, turntable can be made to have higher speed; Direct driving motor direct driving technologies eliminates middle driving-chain, makes panoramic table can reach very high rotating speed and acceleration; Magnetic Gate allows larger alignment error and the feature such as contamination resistance is strong, and directly controls the driver of direct driving motor by magnetic Gate feedback signal, and panoramic table can be made to have higher positioning precision.Due to more than, the static pressure meeting large-scale vertical lathe (gear-hobbing machine, machining center) directly turns the instructions for use of platform.
In other embodiments of the invention: base also can be a solid construction; The bearing rotating ring of hydrostatic bearing can assemble with the bottom of rotary disk is fixing; The rotor of direct driving motor also can with the outside transmission of rotary disk; Magnetic grid mounting groove also can not be established, and now magnetic grid also can directly be fixedly arranged on the outer peripheral face of peripheral housing; The number of turns of hydrostatic support guideway can also be Liang Quan, three circles or more.
Claims (4)
1. a static pressure direct drive turning workbench, comprising base and being rotated by hydrostatic bearing is assemblied on base, the rotary disk that axis extends along the vertical direction, it is characterized in that: described hydrostatic bearing is arranged at the middle part of described rotary disk, at least one circle hydrostatic support guideway is provided with in the periphery of hydrostatic bearing between described base and rotary disk, described hydrostatic support guideway comprises and is arranged at lower hydrostatic support guide rail on base and is arranged at bottom rotary disk, coordinate and the upper hydrostatic support guide rail of plane contact with lower hydrostatic support guide rail rotating support, the upper surface of described lower hydrostatic support guide rail is equipped with the static pressure oil groove for oil storage, described base comprises peripheral housing and is arranged at the middle part supporting in peripheral housing, described middle part supporting is provided with direct driving motor, the rotor of direct driving motor and the middle part of rotary disk are in transmission connection, the supporting of described middle part comprises bearing of trend and the vertically disposed connecting plate of above-below direction and is arranged on connecting plate with one heart successively from the inside to the outside, and be the bearing mounting base of tube-in-tube structure, motor mount and guide rail arrange seat, the stator of direct driving motor is fixedly arranged on the upper end of motor mount, described hydrostatic support guideway is arranged at described guide rail and arranges between seat and rotary disk.
2. static pressure direct drive turning workbench according to claim 1, it is characterized in that: described peripheral housing tip is provided with the lower seal bearing-surface of annular, lower seal bearing-surface and hydrostatic support guideway interval are arranged, and are provided with the upper sealing bearing-surface coordinated with the rotary seal of described lower seal bearing-surface bottom described rotary disk.
3. static pressure direct drive turning workbench according to claim 1, it is characterized in that: the center of described rotary disk is provided with the bearing mounting hole coaxial with rotary disk, the bearing rotating ring of described hydrostatic bearing is fixedly assemblied on the hole wall of described bearing mounting hole.
4. the static pressure direct drive turning workbench according to claim 1 ~ 3 any one, it is characterized in that: the outer peripheral face of described rotary disk is installed with magnetic grid, described base is installed with magnetic grid matching used magnetic grid read head in the periphery of described magnetic grid, described magnetic grid and the periphery of magnetic grid read head are covered with into the magnetic grid protective cover of hollow sleeve-like structure, the upper end of described magnetic grid protective cover is fixed on the rotary disk of described magnetic grid upper end, described base is provided with notch upward, for the annular deep gouge that described magnetic grid protective cover lower end is inserted, the hole wall of described annular deep gouge and described magnetic grid protective cover matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310077937.4A CN103128561B (en) | 2013-03-12 | 2013-03-12 | A kind of static pressure direct drive turning workbench |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310077937.4A CN103128561B (en) | 2013-03-12 | 2013-03-12 | A kind of static pressure direct drive turning workbench |
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| CN103128561A CN103128561A (en) | 2013-06-05 |
| CN103128561B true CN103128561B (en) | 2015-12-02 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567821A (en) * | 2013-11-05 | 2014-02-12 | 明珠科技有限公司 | Full-automatic drill grinder |
| CN103624555B (en) * | 2013-11-29 | 2016-06-15 | 南京工业大学 | Static pressure heavy-load directly drives high-precision rotary working-table |
| CN104801399B (en) * | 2014-01-24 | 2018-01-16 | 上海意丰机电科技开发有限公司 | A kind of static pressure slewing supporting device |
| CN104690562A (en) * | 2015-01-29 | 2015-06-10 | 齐重数控装备股份有限公司 | Large-sized main shaft direct-drive type rotary worktable structure |
| CN105500026B (en) * | 2016-01-14 | 2020-06-19 | 嘉泰数控科技股份公司 | Direct-drive type exchange workbench |
| CN105690111A (en) * | 2016-04-08 | 2016-06-22 | 宜昌长机科技有限责任公司 | Self-adaptive static-pressure adjustment supporting device for large rotary workbench and oil film thickness control system and method |
| CN105952798A (en) * | 2016-07-13 | 2016-09-21 | 重庆大学 | High-precision static pressure air bearing |
| CN110842592A (en) * | 2019-11-22 | 2020-02-28 | 天津百利机械装备集团有限公司中央研究院 | Conical surface closed static pressure rotary table |
| CN112782431B (en) * | 2021-04-10 | 2021-08-03 | 成都飞机工业（集团）有限责任公司 | Target positioning turntable system for reducing electromagnetic interference |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201471207U (en) * | 2009-08-20 | 2010-05-19 | 宁波海天精工机械有限公司 | Dual-direct-connection encoder detecting mechanism |
| CN101799042A (en) * | 2010-03-12 | 2010-08-11 | 洛阳世必爱特种轴承有限公司 | Bearing unit for testing and controlling angular displacement of revolving platform |
| CN201950299U (en) * | 2010-12-19 | 2011-08-31 | 齐重数控装备股份有限公司 | Numerical control high precision static pressure rotating table |
| CN202200044U (en) * | 2011-08-15 | 2012-04-25 | 株洲卓越高科技实业有限公司 | Direct-driven static pressure rotary worktable |
| CN202367453U (en) * | 2011-11-26 | 2012-08-08 | 青海一机数控机床有限责任公司 | Static pressure direct drive rotating platform device of large milling turning machining center |
| CN203266133U (en) * | 2013-03-12 | 2013-11-06 | 河南科技大学 | Static-pressure direct-driven rotary workbench |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002070861A (en) * | 2000-08-29 | 2002-03-08 | Ntn Corp | Hydrostatic gas bearing spindle |
-
2013
- 2013-03-12 CN CN201310077937.4A patent/CN103128561B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201471207U (en) * | 2009-08-20 | 2010-05-19 | 宁波海天精工机械有限公司 | Dual-direct-connection encoder detecting mechanism |
| CN101799042A (en) * | 2010-03-12 | 2010-08-11 | 洛阳世必爱特种轴承有限公司 | Bearing unit for testing and controlling angular displacement of revolving platform |
| CN201950299U (en) * | 2010-12-19 | 2011-08-31 | 齐重数控装备股份有限公司 | Numerical control high precision static pressure rotating table |
| CN202200044U (en) * | 2011-08-15 | 2012-04-25 | 株洲卓越高科技实业有限公司 | Direct-driven static pressure rotary worktable |
| CN202367453U (en) * | 2011-11-26 | 2012-08-08 | 青海一机数控机床有限责任公司 | Static pressure direct drive rotating platform device of large milling turning machining center |
| CN203266133U (en) * | 2013-03-12 | 2013-11-06 | 河南科技大学 | Static-pressure direct-driven rotary workbench |
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