CN101407024B - High precision high rigidity closed type fluid static pressure / dynamic-static pressure rotary table - Google Patents
High precision high rigidity closed type fluid static pressure / dynamic-static pressure rotary table Download PDFInfo
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- CN101407024B CN101407024B CN2008101811198A CN200810181119A CN101407024B CN 101407024 B CN101407024 B CN 101407024B CN 2008101811198 A CN2008101811198 A CN 2008101811198A CN 200810181119 A CN200810181119 A CN 200810181119A CN 101407024 B CN101407024 B CN 101407024B
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- 230000003068 static effect Effects 0.000 title claims abstract description 120
- 239000012530 fluid Substances 0.000 title claims abstract description 28
- 230000002706 hydrostatic effect Effects 0.000 claims description 90
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005555 metalworking Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
- F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load
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- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Machine Tool Units (AREA)
Abstract
The invention provides a closed fluid static pressure/ dynamic static pressure revolving worktable with high precision and rigidity, and relates to the field of automatic equipment of precision machinery. A plurality of axial bearings and radial bearings arranged along the axial direction are fixed by a plurality of slewing rings and bearing guide rails; the revolving worktable is provided with a balanced bearing to balance; kinematic pairs of a plurality of bearings rotate synchronously and are connected; fixed pairs of the bearings are connected through a base of the worktable; and sliding pairs of the radial bearings and bearing pairs of the axial bearings move rigidly, integrally and synchronously; and a relatively still sliding surface of the sliding pair of each bearing is provided with an oil chamber. Under the conditions that fluid pressure of the revolving worktable is same and the volume is equal, the axial rigidity, the radial rigidity and the bearing capacity are multiply improved, and the improved multiple is in direct proportion to the number of the bearings. The revolving worktable has the advantages of convenient design, simple manufacture, low cost, high precision and no abrasion. The revolving worktable is a key part of a high-precision metal working machinery, in particular to a functional part of large and oversize heavy equipment by using the key technology, and has more remarkable advantages in manufacturing equipment in the fields of navigation, astronavigation, large aircraft, and the like.
Description
Technical field
The present invention relates to a kind of high precision high rigidity heavy duty rotary table of automated machine equipment, be specifically related to a kind of precision machine tool or other automated machine is equipped the revolving-turret of required carrying.
Background technology
The panoramic table technology relevant with the application, be used for middle-size and small-size precision metallic stock-removing machine and navigation, space flight, large aircraft, required high accuracy, high rigidity, the heavily loaded large-scale technical equipment of large-scale generating equipment manufacturing, and other technical equipment that utilizes accurate machine tool such as mechanical automation equipment, especially high-precision vertical lathe, vertical grinder, sales counter grinding machine, horizontal boring and milling machine of revolving-turret carrying and directly use super-huge high rigidity high precision overloading rotary table.
In the underloading high-precision rotary working-table, generally be open type static pressure/dynamic and static pressure guide rail structure or single axial and radial fluid static pressure/dynamic and hydrostatic bearing, precision is low, rigidity is low, bearing capacity is poor.Seriously restricted the application of hydrostatic pressure/dynamic and hydrostatic bearing rotary table.In a lot of technical equipment fields that require heavy duty, high accuracy, high rigidity, have to adopt of the support of large-scale or super-huge rolling bearing as rotary table, but rolling bearing is owing to exist very big mechanical friction power, it is easy to wear to generate heat, low precision, precision stability are also poor, service life short, and cost an arm and a leg; In having that part is medium-sized and being equipped under the situation of equivalent-load, used traditional static pressure/dynamic and static pressure guide rail structure or single axially and radial fluid static pressure/dynamic and hydrostatic bearing.
So-called open type, be meant that the moving component that is subjected to static pressure/dynamic and static pressure fluid effect no longer includes static pressure/dynamic and static pressure fluid and acts on this moving component itself on another rightabout, promptly in the inertia balance power system of moving component, no longer include another hydrostatic pressure/dynamic and static pressure active force and exist.With to the moving component power that passive hydrostatic pressure/the dynamic and static pressure active force balances each other, be inertia-gravity or other active force or the sum of the two of moving component itself.
And for single axial and radial fluid static pressure/dynamic and hydrostatic bearing or single in the axial direction closed static pressure/dynamic and static pressure airframe bearing, by the principle of static pressure/dynamic and static pressure as can be known, during load variations, cause changed play, the ability of the pressure feedback effect of one-sided pressure chamber and response speed are very limited, thereby have determined that the rigidity of bearing is limited; When load is excessive, even causes bearing pair generation dry friction and moment high temperature occurs, cause the bearing pair fusing, burn out locking.So the same with aforementioned open formula hydrostatic pressure/dynamic and static pressure structure, rigidity is low; All can not carry out high-rate cutting and grinding, also just can not satisfy requirements such as the desired high accuracy of suitability for industrialized production, high rigidity, heavy duty, make whole equipment lose the High-efficient Production ability.
Summary of the invention
The objective of the invention is deficiency, a kind of high precision high rigidity closed type fluid static pressure/pressure/dynamic-static pressure rotary table is provided at above-mentioned rotary table technology.The precision height, rigidity is strong, and nothing wearing and tearing, bearing capacity can become multiple to increase; Each hydrostatic pressure/dynamic and hydrostatic bearing designs in workbench inside, becomes the complete closed form.
For achieving the above object, technical scheme of the present invention is: high precision high rigidity hydrostatic pressure/pressure/dynamic-static pressure rotary table comprises base, workbench and driving connecting axle, drive connecting axle and be axially installed with a plurality of axial carrying static pressure/dynamic and hydrostatic bearings and static pressure/dynamic and hydrostatic bearing radially, fix by a plurality of pivoted loops and the bearing guide that are provided with vertically, a plurality of axial carrying static pressure/dynamic and hydrostatic bearings are altogether if set up balance static pressure/dynamic and hydrostatic bearing balance setting, the kinematic pair that axially is a plurality of axial carrying static pressure/dynamic and hydrostatic bearings of stack is rotationally connected synchronously, and the fixed joint of a plurality of axial carrying static pressure/dynamic and hydrostatic bearings links together with table base directly or indirectly; Radially in Cheng Zai hydrostatic pressure/dynamic and hydrostatic bearing pair, the sliding pair parts that do relative motion all become to be rigidly connected with bearing pair that axial loading is made relative motion, and being integral is synchronized with the movement is connected, and radially its static relatively bearing pair parts of static pressure/dynamic and hydrostatic bearing are fixed as one with table base directly or indirectly; More than the oil pocket of band fluid intake is arranged on its static relatively sliding surface of sliding pair of each bearing.
Above-mentioned a plurality of radially static pressure/dynamic and hydrostatic bearing bearing is axial series connection or radial parallel stack or mixes stack and arrange.Be fixed with magnechuck on the above-mentioned rotary table face.
Compare advantage of the present invention with existing rotary table: under the situation of identical fluid pressure and pressure chamber area: the axially or radially stack number of static pressure/dynamic and hydrostatic bearing of design then is the raising multiple of workbench bearing capacity.A plurality of axial carrying static pressure/dynamic and hydrostatic bearings and radially carry static pressure/dynamic and hydrostatic bearing have balance static pressure/dynamic and hydrostatic bearing to constitute the seal force architecture; Each FDB no matter be rotary table axially or radially, the FDB of a plurality of carryings is all arranged; Each radial fluid bearing pair itself constitutes the seal force architecture; Also constitute the seal force architecture axially respectively carrying FDB.Under the situation identical at the rotary table fluid pressure, that volume is equal to substantially, it axially, radial rigidity and bearing capacity significantly improve, and the multiple of raising is proportional to the bearing number of carrying, and design is convenient, makes simply, and cost is low; Have high accuracy simultaneously, do not have wearing and tearing.Be the key feature of high-precision metal stock-removing machine equipment, the key technology functional part of especially large-scale and super-huge weight equipment, alternative costing an arm and a leg and rolling bearing rotary table that service life is limited.In addition, the structural design of the hydrostatic pressure/dynamic and hydrostatic bearing of a plurality of carrying effects, under identical rigidity and load bearing requirements condition, can dwindle the parts volume and weight greatly, cost hangs down the reliability height, is that navigation, space flight, large aircraft etc. require the key technology functional part in the precision manufacturing equipment of high accuracy, high rigidity, heavy duty.
Below in conjunction with the specific embodiment the present invention is done further detailed description.
Description of drawings
Fig. 1 is the axle cross-sectional view of rotary table of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Drawing reference numeral explanation: 1-turntable drive part; The 2-outer base; 3-is static pressure/dynamic and static pressure guide rail radially; 4-drives connecting axle; 5-axial carrying static pressure/dynamic and hydrostatic bearing; The 6-pivoted loop; 7-longitudinal balance static pressure/dynamic and hydrostatic bearing; 8-is static pressure/dynamic and static pressure guide rail radially; 9-axial carrying static pressure/dynamic and hydrostatic bearing; 10-radially carries static pressure/dynamic and hydrostatic bearing; 12-longitudinal balance static pressure/dynamic and hydrostatic bearing; The 13-pivoted loop; 14-radially carries static pressure/dynamic and hydrostatic bearing; The 15-pivoted loop; 16-radially carries static pressure/dynamic and hydrostatic bearing; 18-cable support bearing; 19-magnechuck or other fixture bodies; The 20-workbench; The 21-sealing ring; The 22-screw; 23-radially carries static pressure/dynamic and static pressure guide rail; 24-screw and taper pin; 25-screw and taper pin; The 26-fluid intake; The 27-lock-screw; The 28-fluid issuing; It is secondary that the 29-turntable is installed adjustable locking; The 30-cable.
The specific embodiment
Referring to shown in Figure 1, Fig. 1 is a most preferred embodiment of the present invention, high precision high rigidity closed type fluid static pressure/pressure/dynamic-static pressure rotary table comprises: turntable drive part 1, outer base 2, static pressure/dynamic and static pressure guide rail 3 radially, 8 and 23, drive connecting axle 4, axial carrying static pressure/dynamic and hydrostatic bearing 5 and 9, longitudinal balance bearing 7 and 12, pivoted loop 6 and 13 and 15, static pressure/dynamic and hydrostatic bearing 10 and 14 and 16 radially, cable support bearing 18, magnechuck or other fixture body 19, workbench 20, sealing ring 21, the screw and alignment pin 22 and 24 and 25 and 27 that connect, static pressure/dynamic and static pressure fluid intake 26, fluid issuing 28, locking that workbench is adjustable secondary 29, cable 30.
Rotary table drive part 1 can be the motor direct connection, also can be connected to by turbine and worm to drive on the coupling spindle 4, and the mode of connection also can be passed through screw or special shaft coupling.Base 2 is fixed on the installing component of this rotary table by adjustable locking is secondary.Radially static pressure/dynamic and static pressure guide rail 3 is fixed on base 2 center positioning holes, and passes through screw lock.Pivoted loop 6 respectively with base 2 on ring surface and radially the lower surface of static pressure/dynamic and static pressure guide rail 8 constitute two sliding surfaces of axial static pressure/dynamic and hydrostatic bearing 5 and longitudinal balance static pressure/dynamic and hydrostatic bearing 7; Radially the inner ring surface of static pressure/dynamic and static pressure guide rail 8 and upper surface constitute two sliding surfaces that radially carry static pressure/dynamic and hydrostatic bearing 14 and axial static pressure/dynamic and hydrostatic bearing 9 with the external cylindrical surface of pivoted loop 5 and the lower surface of pivoted loop 13 respectively; Radially an external cylindrical surface of the inner cylinder face fish of static pressure/dynamic and static pressure guide rail 23 and pivoted loop 13 constitutes two sliding surfaces that radially carry static pressure/dynamic and hydrostatic bearing 10; The inner cylinder face of slip ring 13 or slip ring 15 constitutes radially two sliding surfaces of static pressure/dynamic and hydrostatic bearing with the external cylindrical surface of static pressure/dynamic and static pressure guide rail 3 radially again; Radially static pressure/dynamic and static pressure guide rail 8 and 23 is installed by screw and alignment pin successively and is positioned at above the base 2; Pivoted loop 6,13,15 by screw attachment together; Above-mentioned each constitutes fluid lubrication, does in the sliding pair of relative slip, and all designing on the static relatively sliding surface has corresponding static pressure/dynamic and static pressure oil pocket, and each oil pocket all has fluid intake separately, as fluid intake 27.
Axial static pressure/dynamic and hydrostatic bearing 5 and axial 9 one-tenth stacked systems in parallel of static pressure/dynamic and hydrostatic bearing; Longitudinal balance static pressure/dynamic and hydrostatic bearing 7 also is designed to stacked system in parallel with longitudinal balance static pressure/dynamic and hydrostatic bearing 12; Axially static pressure/dynamic and hydrostatic bearing 5,9 and longitudinal balance static pressure/dynamic and hydrostatic bearing 7,12 constitute closed static pressure/dynamic and static pressure structure, the closed balance inertial force of the common formation of the active force of this four kinds of static pressure/dynamic and static pressure oil pocket and axial load system.When the axial load on the workbench 20 changes, and be unified into the axial carrying static pressure/dynamic and hydrostatic bearing 5 of an integral body and the variation that 9 end-play takes place at the same instant identical numerical value; Meanwhile, and be unified into the longitudinal balance static pressure/dynamic and hydrostatic bearing 7 of an integral body and 12 end-play also takes place at the same instant identical numerical value inverse change.Thereby realize the purpose of high rigidity; Because above-mentioned two loading bearings become parallel-connection structure, thereby have improved the whole axial carrying capacity of workbench 20 exponentially.According to above-mentioned principle and structural design, under the situation of identical fluid pressure and pressure chamber area: the stack number of the axial static pressure/dynamic and hydrostatic bearing of design then is the raising multiple of workbench axial carrying capacity.
Radially static pressure/dynamic and hydrostatic bearing 10,14 and 16 one-tenth stacked systems in parallel of static pressure/dynamic and hydrostatic bearing radially; By static pressure/dynamic and static pressure oil pocket design of itself symmetry, radially static pressure/dynamic and hydrostatic bearing 10,14,16 all is ring-shaped cylinder shape static pressure/dynamic and hydrostatic bearings of self-balancing.Can independently constitute the balanced system of force of static pressure/dynamic and static pressure active force separately.When the radial load on the workbench 20 changes, and the end-play that radially carries static pressure/dynamic and hydrostatic bearing 10,14 and 16 that is unified into an integral body takes place at the same instant the variation of identical numerical value, two bearings act on simultaneously, thereby realize the purpose of high rigidity; Because above-mentioned two loading bearings are radially also constituting parallel-connection structure, thereby can improve the overall radial bearing capacity of workbench 20 exponentially.According to above-mentioned principle and structural design, under the situation of identical fluid pressure and pressure chamber area, radially the stack number of static pressure/dynamic and hydrostatic bearing then is the radially raising multiple of bearing capacity of workbench.
Pivoted loop 13 is linked together with workbench 20; Magnechuck 19 is installed on the workbench 20, and workbench is linked together with driving coupling spindle 4.Like this, when driven by motor drives coupling spindle 4 motions, magnechuck, workbench and pivoted loop 6,13,15 one-tenth as a wholely do gyration.
In the hydrostatic pressure/dynamic and hydrostatic bearing 5 and 9 that constitutes axial carrying, the hydrostatic pressure/dynamic and hydrostatic bearing 5 of each axial carrying and 9 the sliding surface of doing relative motion can be overall structures with slip ring 15; Also can be the split-type structural assembling, connect, fixedly form, as Fig. 1.
Two or more each rotational parts that are used for the hydrostatic pressure/dynamic and hydrostatic bearing pair of axial carrying that are the stacking pattern layout can be the integral body of an overall structure or part and divide the assembling of body structure to be formed by connecting.
The kinematic pair that axially is the carrying FDB of the layout design that superposes is to rotate synchronously; The fixed joint of carrying hydrostatic pressure/dynamic and hydrostatic bearing can link together with table base 2 directly or indirectly.
The lubricant medium fluid of axial/radial carrying FDB can be pressure oil or gas or gas mixture or other fluids; Pressure chamber can be static pressure or dynamic and static pressure version or the combining structure form of the two.
Two or more hydrostatic pressure/the dynamic and hydrostatic bearings that are used for radially carrying are as 10 and 14 and 16.Radially static pressure/dynamic and hydrostatic bearing 10,14 is axially-aligned, also plays the effect of polyphone stack; With another 16 one-tenth radial parallel stacked systems of static pressure/dynamic and hydrostatic bearing radially; Static pressure/dynamic and static pressure oil pocket design by itself symmetry of bearing 10,14,16 makes each journal bearing become the cylindrical static pressure/dynamic and hydrostatic bearing of ring-type of self-balancing.
Axial arranged radially carrying hydrostatic pressure/dynamic and hydrostatic bearing can be arranged continuously, as 10 and 14 of Fig. 1, also can intermittently arrange;
Hydrostatic pressure/the dynamic and hydrostatic bearing that is used for radially carrying is axial stack in parallel to be arranged, as 10 and 14 of Fig. 1.
Hydrostatic pressure/the dynamic and hydrostatic bearing that is used for radially carrying is the radial parallel stack to be arranged, as 14 and 16 or 10 and 16 of Fig. 1.
Hydrostatic pressure/the dynamic and hydrostatic bearing that is used for radially carrying can a plurality ofly be axially and radially mix stack in parallel and arrange, as 10 and 16,14 and 16 of Fig. 1.
The sliding pair parts that all do relative motion can be an overall structure or part overall structure or be formed by connecting by split-type structural assembling.As the slip ring the 13, the 15th of Fig. 1, minute body structure; The guide rail 8,23 that constitutes bearing pair also is the branch body structure.
In all hydrostatic pressure that radially carries/dynamic and hydrostatic bearing pairs, the sliding pair parts that all do relative motion are no matter be an one-piece parts or assembled by the split part, all becoming to be rigidly connected with bearing pair part that axial loading is made relative motion is integral, and is synchronized with the movement; And the static relatively bearing pair of each loading bearing links together with table base 2 directly or indirectly.
Panoramic table scheme of the present invention, the connected mode of its pivoted loop and base are not openly limited by the present invention, and based on above design feature, a plurality of stack connected modes of journal bearing of axially following ought to be within protection scope of the present invention.
Claims (3)
1. closed static pressure/pressure/dynamic-static pressure rotary table of high precision high rigidity fluid, comprise base, workbench and driving connecting axle, it is characterized in that: drive connecting axle and be axially installed with a plurality of axial carrying static pressure/dynamic and hydrostatic bearings and static pressure/dynamic and hydrostatic bearing radially, fix by a plurality of pivoted loops and the bearing guide that are provided with vertically, a plurality of axial carrying static pressure/dynamic and hydrostatic bearings are altogether if set up balance static pressure/dynamic and hydrostatic bearing balance setting, the kinematic pair that axially is a plurality of axial carrying static pressure/dynamic and hydrostatic bearings of stack is rotationally connected synchronously, and the fixed joint of a plurality of axial carrying static pressure/dynamic and hydrostatic bearings links together with table base directly or indirectly; Radially in Cheng Zai hydrostatic pressure/dynamic and hydrostatic bearing pair, the sliding pair parts that do relative motion all become to be rigidly connected with bearing pair parts that axial loading is made relative motion, and being integral is synchronized with the movement is connected, and radially its static relatively bearing pair parts of static pressure/dynamic and hydrostatic bearing are fixed as one with table base directly or indirectly; More than the oil pocket of band fluid intake is arranged on its static relatively sliding surface of sliding pair of each bearing.
2. rotary table according to claim 1 is characterized in that: described a plurality of radially static pressure/dynamic and hydrostatic bearings are axial series connection or radial parallel stack or mix stack and arrange.
3. rotary table according to claim 1 is characterized in that: be fixed with magnechuck on the described rotary table face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101811198A CN101407024B (en) | 2008-11-25 | 2008-11-25 | High precision high rigidity closed type fluid static pressure / dynamic-static pressure rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101811198A CN101407024B (en) | 2008-11-25 | 2008-11-25 | High precision high rigidity closed type fluid static pressure / dynamic-static pressure rotary table |
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| Publication Number | Publication Date |
|---|---|
| CN101407024A CN101407024A (en) | 2009-04-15 |
| CN101407024B true CN101407024B (en) | 2010-07-14 |
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| CN2008101811198A Active CN101407024B (en) | 2008-11-25 | 2008-11-25 | High precision high rigidity closed type fluid static pressure / dynamic-static pressure rotary table |
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| CN103624555B (en) * | 2013-11-29 | 2016-06-15 | 南京工业大学 | Static pressure heavy-load direct-drive high-precision rotary worktable |
| ITUB20151827A1 (en) * | 2015-07-02 | 2017-01-02 | Mario Carnaghi Spa | HYDROSTATIC ROTARY TABLE, PARTICULARLY FOR VERTICAL LATHES |
| CN107791123B (en) * | 2017-09-25 | 2019-06-07 | 浙江杭机股份有限公司 | A kind of high revolving speed closed type static pressure rotary table |
| CN110142616B (en) * | 2019-05-08 | 2021-06-11 | 承德石油高等专科学校 | Double-spiral suspension type high-precision hydrostatic pressure rotary table |
| CN110116370B (en) * | 2019-05-31 | 2020-12-08 | 上海机床厂有限公司 | Static pressure type high-precision rotary indexing device |
| CN113007218B (en) * | 2021-01-14 | 2024-06-11 | 中国工程物理研究院机械制造工艺研究所 | Series composite throttling hydrostatic turntable |
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- 2008-11-25 CN CN2008101811198A patent/CN101407024B/en active Active
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Effective date of registration: 20151231 Address after: 100102 Beijing City, Chaoyang District Wangjing new industrial district Lize street two District No. 208 ZYC building block D No. 4404 Patentee after: BEIJING PROSPER PRECISION MACHINE TOOL CO., LTD. Address before: 100015 Beijing City, Chaoyang District Wangjing new industrial district Lize street two District No. 208 ZYC building block D No. 4408 Patentee before: Wu Xingfei Patentee before: Lv Guifang Patentee before: Yang Wenying |
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Inventor after: Wu Xingfei Inventor before: Wu Xingfei Inventor before: Lv Guifang Inventor before: Yang Wenying |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 100176 Beijing Yizhuang West Ring South Road, 18 Huilong Sen International Innovation Industrial Park A 5 floor 508 room Patentee after: BEIJING PROSPER PRECISION MACHINE TOOL CO., LTD. Address before: 100102 Beijing City, Chaoyang District Wangjing new industrial district Lize street two District No. 208 ZYC building block D No. 4404 Patentee before: BEIJING PROSPER PRECISION MACHINE TOOL CO., LTD. |