CN103551860B - A kind of magnetic suspension bearing structure of linear feed unit - Google Patents
A kind of magnetic suspension bearing structure of linear feed unit Download PDFInfo
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- CN103551860B CN103551860B CN201310538908.3A CN201310538908A CN103551860B CN 103551860 B CN103551860 B CN 103551860B CN 201310538908 A CN201310538908 A CN 201310538908A CN 103551860 B CN103551860 B CN 103551860B
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- electromagnet
- guiding
- upper table
- armature
- lower support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Machine Tool Units (AREA)
Abstract
The present invention relates to a kind of magnetic suspension bearing structure of linear feed unit, its workbench is made up of upper table and supporting arrangement, and along bed ways work, the lower surface middle position of upper table has the rigid rectangular frame of longitudinally arranging to lower process, the left and right sides of rectangle frame is symmetrical, be horizontally installed with two pairs of guiding electromagnets, the horizontal direction force of guiding electromagnet is passed to upper table by rectangle frame, bed ways are provided with the guiding armature matched with guiding electromagnet, supporting arrangement comprises pillar, upper lift magnet, lower support electromagnet, bed ways are provided with supporting armature, lower support armature.The present invention is rational in infrastructure, it is convenient to implement, effective magnetic suspension bearing and the guiding of workbench Long travel can be carried out, the anti-guiding external force of remarkable enhancing is to the interference performance of workbench rigidity, reduce magnetic Field Coupling, reduce the processing of magnetic suspension linear feed unit and control difficulty, being applicable to high accuracy, high efficiency Digit Control Machine Tool.
Description
Technical field
The present invention relates to a kind of linear feed unit, particularly the magnetic suspension bearing structure of linear feed unit.
Background technology
Industry is maked rapid progress, and the performance requirement such as machining accuracy, efficiency of modern manufacturing industry to process equipment is more and more higher, facilitates the development of machine tool industry especially Digit Control Machine Tool.But the industrialized scale of the functional part supporting with Digit Control Machine Tool and Product Level, can not meet the demand for development of Digit Control Machine Tool far away.Feed unit is the important functional parts of Digit Control Machine Tool, the last coordinate of workpiece to be machined and contour accuracy are all subject to the transmission accuracy of feed unit motion, the impact of sensitivity and stability, and therefore it must possess the features such as frictional resistance is little, transmission accuracy is high, fast response time, rigidity are large.
Traditional feed system is " rotating servo motor+ball-screw " type of drive mainly, important function has been played in the development of human society, but between power source to feeding platform, there is many intermediate link such as leading screw, nut, the geneogenous shortcomings such as flexible distortion is large, response speed is slow, have backlass, easy to wear, limit the raising of machine finish and efficiency.Linear electric motors drive feed servo-system to overcome many defects of conventional ADS driving mode, obtain high performance indications and advantage.It not only revolutionizes some shortcomings of traditional ball-screw-transmission mode, and has the advantages such as high speed, high acceleration, high position precision, haul distance be unrestricted, makes it develop into dominant direction gradually in technique for high speed feed system of NC machine tools field.
Machine tool guideway is the basic structure key element of lathe, depends on the quality of machine tool guideway to a great extent in the machining accuracy of lathe and service life.The existing support design being applied to the feeding platform that linear electric motors drive, all adopts traditional mechanical support mode both at home and abroad.If typical rolling guide and V-V type rail plate are in the motion process of high speed and high acceleration, owing to impact and at a high speed, easily generation is creeped and weares and teares.The hydraulic means of hydrostatic slideway is large, and auxiliary equipment is many, oil circuit maintenance process simulation is tired of, oil pollution is serious.Gas hydraulic pressure guide rail requires the dust-proof condition of use of ultra-clean, processing difficulties.And magnetic levitation worktable lathe take electromagnetic force as the supporting of platen, be aided with electromagnetism guiding mechanism simultaneously and build up machine tool guideway system, mechanical contacts, do not wear and tear, do not need lubrication and sealing, and be drive system with linear electric motors, reaction is fast, stable movement, speed are high, precision good, long service life.
A key issue of magnetic suspension linear feed unit design is the optimum optimization realizing structure and rigidity.Suspended substance adopts the larger material of the rigidity such as iron to make, but suspended substance quality is comparatively large, and the rigidity of structure is larger, but electromagnet needs to realize larger suspension bearing power, just need size and the weight of large electromagnet, also increase the difficulty in control, more increase the requirements at the higher level etc. to linear electric motors.Under a certain size suspension bearing power, adopt aluminium to make suspended substance, suspended substance deadweight can be alleviated, for load capacity space for the creativity, more reduce the requirement to linear electric motors, more easily can realize the straight-line feed of large speed, high acceleration, but rigidity is difficult to ensure.Therefore, the optimization realizing structure and rigidity is the key issue designed.Research finds, the size of guiding force is comparatively large on the impact of the rigidity of structure, thus causes adverse effect to the processing of linear feed unit and control accuracy.Particularly when large guiding force, its adverse effect is more obvious.But in current magnetic suspension linear feed unit structural design, multipair greatly this does not have enough attention, the intelligent magnetic suspension linear feeding unit that such as Nantong University proposes in patent document CN100589317C, the high-speed and high-efficiency high precision int of Machine Tool Feeding System can be realized, but its electromagnet play the guiding role is arranged on inside dynamic guide rail the right and left, time there is external force in guide direction in the course of the work, both sides guiding electromagnet just produces the electromagnetic force making workbench come back to equilbrium position, and the electromagnetic force direction that differs in size in both sides is contrary, thus increase the deformation of workbench, the interference that the external force that so just effectively can not resist guide direction produces workbench rigidity.If workbench is integrally manufactured, can rigidity be increased but increase manufacture difficulty and processing cost simultaneously; If workbench combination manufactures, need the modes such as employing is threaded, just can reduce stiffness by itself, increase and control difficulty.
Nantong University proposes the magnetic field structure of Direct driver type magnetic suspension linear feed unit in patent document CN101753067A, its workbench is sleeved on support rails, its guiding electromagnet is assembled in inside workbench the right and left, does not take effective design with regard to the adverse effect of guiding force to workbench rigidity.Its support rails adopts aluminum, and rigidity is poor, and resistance to shock is not good, is unfavorable for production application.
Shanghai University proposes commercial Application type active magnetic suspension machine tool guide linear motor feeding platform in patent document CN1244432C, and its mobile platform is sleeved on and is fixed on the guide rail of support, and guiding electromagnet is arranged on the right and left inside mobile platform.Mobile platform adopts rectangle closed-in construction, the adverse effect of guiding force to workbench rigidity can be resisted to a certain extent, but rail length is restricted thus limits the stroke of rectilinear motion, otherwise will the effective supporting of support to guide rail be greatly reduced, reduce the rigidity of structure of guide rail self, affect processing and the control accuracy of feed unit.
The magnetic suspension linear feed unit that articles such as " model analyses of magnetic suspension linear motion platform " that " a kind of thermal analyses of novel magnetically levitated linear motion platform " that the people such as " research of two-dimension high-precision magnetic suspension locating platform ", section Ji'an that the people such as Jing Minqing deliver in " XI AN JIAOTONG UNIVERSITY Subject Index " delivers on " Proceedings of the CSEE " and Guo Ning equality people deliver on " engineering design journal " puts forward all does not take design effectively to the adverse effect of guiding force to workbench rigidity.
Summary of the invention
The object of the invention is to: the defect overcoming above-mentioned prior art, a kind of magnetic suspension bearing structure of linear feed unit is proposed, be highly resistant to guide direction external force to workbench rigidity and linear feed unit processing and the adverse effect of control accuracy, thus be applicable to the magnetic suspension linear feed unit of high precision machine tool.
In order to achieve the above object, the magnetic suspension bearing structure of a kind of linear feed unit that the present invention proposes, comprise: be fixed on the bed ways on pedestal, be set in the workbench of bed ways, described bed ways are provided with linear motor stator electric, the relative position of workbench is provided with the linear motor rotor coordinated with described linear motor stator electric, it is characterized in that: described workbench is by upper table, be installed on the supporting arrangement composition below described upper table corner, the lower surface middle position of described upper table has the rigid rectangular frame of longitudinally arranging to lower process, described rectangle frame and upper table are integrally manufactured shaping every magnetic aluminum, described linear motor rotor is installed in this rectangle frame, the left and right sides of rectangle frame is symmetrical, level two pairs of guiding electromagnets are installed, the horizontal direction force of described guiding electromagnet is passed to upper table by rectangle frame, the relative position of described bed ways is provided with the guiding armature matched with described guiding electromagnet, described supporting arrangement comprises pillar, the two ends up and down in post inboard face are respectively arranged with lift magnet, lower support electromagnet, the relative position of described bed ways be provided with respectively with described upper lift magnet, the upper supporting armature that lower support electromagnet matches, lower support armature.
The magnetic suspension bearing structure of linear feed unit of the present invention, further improve and be:
1, described guiding electromagnet is E type electromagnet, and the iron core dorsal part of guiding electromagnet contacts with rectangle frame sidewall.
2, pillar adopts aluminum, and bed ways adopt cast iron materials, and the iron core of electromagnet and armature all adopt pure iron material.
3, described upper lift magnet, lower support electromagnet are E type electromagnet, the iron core dorsal part of described upper lift magnet contacts with upper table lower surface, upper lift magnet is vertically passed to upper table to stressed major part, secondary part successively through struts transmit to upper table; Described lower support electromagnet vertical to stressed through struts transmit to upper table.
4, described pillar is bolted to connection the below at upper table.
5, described pillar is C-shaped.
6, described guiding armature, upper supporting armature, be all provided with every magnetic aluminium sheet between lower support armature and bed ways.
7, between described upper lift magnet and upper supporting armature, between lower support electromagnet and lower support armature, all leave the attractive magnetic suspension bearing normal working clearance, between guiding electromagnet and guiding armature, leave the normal working clearance.
8, between described upper lift magnet and upper supporting armature, between lower support electromagnet and lower support armature, all leave the working clearance of 0.2-0.5mm, between guiding electromagnet and guiding armature, leave the working clearance of 0.2-0.5mm.
Magnetic suspension bearing structural change conventional table structure of the present invention, the form adopting upper table to combine with four pillars, can reduce difficulty of processing and the cost of manufacture of workbench; On the rectangle frame that guiding electromagnet is prominent under being directly arranged at upper table, the guiding force that guidance magnets produces more directly can act on upper table, because rectangle frame is rigidity, therefore the transmission of guiding force is more direct, effectively can resist the adverse effect of guiding force to workbench rigidity, thus improve machining accuracy and the control accuracy of magnetic suspension linear feed unit; Rectangle frame and upper table are integrally manufactured shaping every magnetic aluminum, and integral rigidity is good, not yielding; Because linear motor rotor is arranged in rectangle frame, rectangle frame serves the effect every magnetic, and rectangle frame also can protect inner linear motor rotor to be knocked effectively simultaneously; Upper and lower lift magnet is all fixed on pillar, the supporting force wherein going up lift magnet generation directly and indirectly passes to upper table, the supporting force that lower support electromagnet produces then indirectly passes to upper table, the results showed that such supporting force combination can either improve control accuracy, control feedback speed can be improved again; When the workbench comprising custom-designed pillar is sleeved on outside bed ways, only leave with bed ways and armature residual gap can relative motion and discontiguous minim gap, the electromagnetic coupled of lift magnet and external object can be reduced.
The present invention is rational in infrastructure, and it is convenient to implement, and has used magnetic suspension bearing technology, linear electric motors actuation techniques, has been convenient to modularization, combination production.Eliminate conventional guide rails, adopt magnetic suspension bearing guide rail.Lift magnet group produces the deadweight of electromagnetic force equilibrium workbench, load and perturbed force, makes workbench stable suspersion.Guiding electromagnet group produces the external force in electromagnetic force equilibrium horizontally-guided direction, makes workbench precise guidance.Employing linear electric motors drive, and have used accurate position feedback system.Because guideway relative motion surface does not have Mechanical Contact, so there is no mechanical wear, do not need lubrication and sealing, and completely eliminate creeping phenomenon, the problem of precision and life-span decline can not be produced because of wearing and tearing and contact fatigue.Under the driving of linear electric motors and the help of position feedback system, workbench high speed, high acceleration and high-precision straight-line feed can be realized.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the magnetic suspension bearing structural perspective of the present embodiment linear feed unit.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the upper table structural representation of the present embodiment.
Fig. 4 is the supporting arrangement structural representation of the present embodiment.
Number in the figure is schematically as follows:
1-bed ways, 2-workbench, 21-upper table, 3-linear motor stator electric, 4-linear motor rotor, 5-supporting arrangement, 6-rectangle frame, 7-guiding electromagnet, 8-leads armature, 9-pillar, the upper lift magnet of 10-, 11-lower support electromagnet, 12-supports armature, 13-lower support armature.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figures 1 to 4, the magnetic suspension bearing structure of the present embodiment linear feed unit, comprise: be fixed on the bed ways 1 on pedestal, be set in the workbench 2 of bed ways 1, bed ways 1 are provided with linear motor stator electric 3, the relative position of workbench 2 is provided with the linear motor rotor 4 coordinated with described linear motor stator electric 3, workbench 2 is by upper table 21, the supporting arrangement 5 be installed on below described upper table 21 4 jiaos forms, the lower surface middle position of upper table 21 has the rigid rectangular frame 6(rectangle frame 6 longitudinally arranged to lower process with upper table 21 for integrally manufactured shaping every magnetic aluminum), in this example, the outside dimension of rectangle frame is 665mm × 200mm × 50mm, thickness is 30mm, linear motor rotor 4 is installed in this rectangle frame 6, the left and right sides of rectangle frame 6 is symmetrical, level two pairs of guiding electromagnets 7 are installed, the horizontal direction force of guiding electromagnet 7 is passed to upper table 21 by rectangle frame 6, the relative position of bed ways 1 is provided with the guiding armature 8 matched with guiding electromagnet 7, supporting arrangement 5 comprises C t shore 9, pillar 9 is bolted to connection the below at upper table 21, the two ends up and down of pillar 9 medial surface are respectively arranged with lift magnet 10, lower support electromagnet 11, the relative position of bed ways 1 be provided with respectively with described upper lift magnet 10, the upper supporting armature 12 that lower support electromagnet 11 matches, lower support armature 13.
Guiding electromagnet 7 is E type electromagnet, and the iron core dorsal part of guiding electromagnet 7 contacts with rectangle frame 6 sidewall.Upper lift magnet 10, lower support electromagnet 11 are E type electromagnet, the iron core dorsal part of upper lift magnet 10 contacts with upper table 21 lower surface, upper lift magnet 10 is vertically passed to upper table 21 to stressed major part, and secondary part is passed to upper table 21 through pillar 9 successively; The vertical of lower support electromagnet 11 is passed to upper table 21 to stressed through pillar 9.
Between upper lift magnet 10 and upper supporting armature 12, between lower support electromagnet 11 and lower support armature 13, all leave the working clearance of 0.2-0.5mm, between guiding electromagnet 7 and guiding armature 8, leave the working clearance of 0.2-0.5mm.Upper table 21 and pillar 9 adopt aluminum, and bed ways 1 adopt cast iron materials, and the iron core of electromagnet and armature all adopt pure iron material.Guiding armature 8, upper supporting armature 12, be all provided with between lower support armature 13 and bed ways 1 every magnetic aluminium sheet (meaning not shown in the figures).
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (4)
1. the magnetic suspension bearing structure of a linear feed unit, comprise: be fixed on the bed ways on pedestal, be set in the workbench of bed ways, described bed ways are provided with linear motor stator electric, the relative position of workbench is provided with the linear motor rotor coordinated with described linear motor stator electric, it is characterized in that: described workbench is by upper table, be installed on the supporting arrangement composition below described upper table corner, the lower surface middle position of described upper table has the rigid rectangular frame of longitudinally arranging to lower process, described rectangle frame and upper table are integrally manufactured shaping every magnetic aluminum, described linear motor rotor is installed in this rectangle frame, the left and right sides of rectangle frame is symmetrical, level two pairs of guiding electromagnets are installed, the horizontal direction force of described guiding electromagnet is passed to upper table by rectangle frame, the relative position of described bed ways is provided with the guiding armature matched with described guiding electromagnet, described supporting arrangement comprises pillar, the two ends up and down in post inboard face are respectively arranged with lift magnet, lower support electromagnet, the relative position of described bed ways be provided with respectively with described upper lift magnet, the upper supporting armature that lower support electromagnet matches, lower support armature.
2. the magnetic suspension bearing structure of linear feed unit according to claim 1, is characterized in that: described guiding electromagnet is E type electromagnet, and the iron core dorsal part of guiding electromagnet contacts with rectangle frame sidewall.
3. the magnetic suspension bearing structure of linear feed unit according to claim 2, it is characterized in that: described pillar adopts aluminum, bed ways adopt cast iron materials, and iron core, guiding armature, upper supporting armature and the lower support armature of the iron core of guiding electromagnet, the iron core of upper lift magnet, lower support electromagnet all adopt pure iron material.
4. the magnetic suspension bearing structure of linear feed unit according to claim 2, it is characterized in that: described upper lift magnet, lower support electromagnet are E type electromagnet, the iron core dorsal part of described upper lift magnet contacts with upper table lower surface, upper lift magnet is vertically passed to upper table to stressed major part, secondary part successively through struts transmit to upper table; Described lower support electromagnet vertical to stressed through struts transmit to upper table.
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| CN201310538908.3A CN103551860B (en) | 2013-11-04 | 2013-11-04 | A kind of magnetic suspension bearing structure of linear feed unit |
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| CN201310538908.3A CN103551860B (en) | 2013-11-04 | 2013-11-04 | A kind of magnetic suspension bearing structure of linear feed unit |
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| CN103551860B true CN103551860B (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904299A (en) * | 2016-05-11 | 2016-08-31 | 周玉红 | High-precision smoothing assembly for flatness of steel plate |
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| CN105459045B (en) * | 2014-09-05 | 2017-08-15 | 高明铁企业股份有限公司 | Magnetic positions formula rotation platform |
| CN106564758B (en) * | 2015-07-13 | 2019-01-04 | 南通大学 | A kind of right and wrong combined-circulation type transmission unit of self-driving type magnetic suspension |
| CN106271684B (en) * | 2016-09-14 | 2018-04-03 | 燕山大学 | A kind of magnetic liquid dual suspension support rails system |
| CN110236220B (en) * | 2019-04-26 | 2021-07-20 | 河南中烟工业有限责任公司 | Horn mouth magnetic suspension supporting structure of cigarette making machine and adjusting method thereof |
| CN111894978B (en) * | 2020-07-22 | 2022-04-26 | 南通理工学院 | Plane support active magnetic suspension device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6777833B1 (en) * | 2001-12-17 | 2004-08-17 | Ultratech Stepper, Inc. | Magnetic levitation stage apparatus and method |
| CN101136601A (en) * | 2007-08-17 | 2008-03-05 | 南通大学 | Intelligent magnetic suspension linear feeding unit |
| CN101753067A (en) * | 2010-01-11 | 2010-06-23 | 南通大学 | Magnetic field decoupling structure for direct-driven type magnetic suspension linear feed unit |
| DE102009050511A1 (en) * | 2009-10-23 | 2011-05-05 | Weh, Herbert, Prof. Dr.-Ing. Dr. h.c. | Magnetic carrying/guiding arrangement for e.g. linear movement application, has excitation arrangement including parts that are deflected by control process to obtain required position correction of excitation part using field densities |
| CN103277409A (en) * | 2013-01-14 | 2013-09-04 | 哈尔滨工业大学 | Five-freedom degree magnetic levitation guide rail with novel electromagnet distribution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4962779B2 (en) * | 2007-07-06 | 2012-06-27 | 株式会社安川電機 | STAGE DEVICE, FLOAT CONTROL METHOD, AND EXPOSURE DEVICE USING STAGE DEVICE |
-
2013
- 2013-11-04 CN CN201310538908.3A patent/CN103551860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6777833B1 (en) * | 2001-12-17 | 2004-08-17 | Ultratech Stepper, Inc. | Magnetic levitation stage apparatus and method |
| CN101136601A (en) * | 2007-08-17 | 2008-03-05 | 南通大学 | Intelligent magnetic suspension linear feeding unit |
| DE102009050511A1 (en) * | 2009-10-23 | 2011-05-05 | Weh, Herbert, Prof. Dr.-Ing. Dr. h.c. | Magnetic carrying/guiding arrangement for e.g. linear movement application, has excitation arrangement including parts that are deflected by control process to obtain required position correction of excitation part using field densities |
| CN101753067A (en) * | 2010-01-11 | 2010-06-23 | 南通大学 | Magnetic field decoupling structure for direct-driven type magnetic suspension linear feed unit |
| CN103277409A (en) * | 2013-01-14 | 2013-09-04 | 哈尔滨工业大学 | Five-freedom degree magnetic levitation guide rail with novel electromagnet distribution |
Non-Patent Citations (2)
| Title |
|---|
| 二维高精度磁悬浮定位平台的研究;景敏卿 等;《西安交通大学学报》;20081130;第42卷(第11期);第1377-1381页 * |
| 磁悬浮直线运动平台的模态分析;郭宁平 等;《工程设计学报》;20110630;第18卷(第3期);第184-190页 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904299A (en) * | 2016-05-11 | 2016-08-31 | 周玉红 | High-precision smoothing assembly for flatness of steel plate |
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Inventor after: Xiao Longxue Inventor after: Wu Guoqing Inventor after: Wu Shuqian Inventor after: Zhu Weinan Inventor after: Mao Jingfeng Inventor after: Zhang Xudong Inventor after: Zhang Yumei Inventor before: Wu Guoqing Inventor before: Xiao Longxue Inventor before: Wu Shuqian Inventor before: Zhu Weinan Inventor before: Mao Jingfeng Inventor before: Zhang Xudong Inventor before: Zhang Yumei |
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Effective date of registration: 20200319 Address after: 226019 Jiangsu city of Nantong province sik Road No. 9 Patentee after: Center for technology transfer, Nantong University Address before: 226019 Jiangsu city of Nantong province sik Road No. 9 Patentee before: NANTONG University |