CN102837008A - Built-in electric spindle capable of being detached and maintained conveniently - Google Patents
Built-in electric spindle capable of being detached and maintained conveniently Download PDFInfo
- Publication number
- CN102837008A CN102837008A CN2012102655456A CN201210265545A CN102837008A CN 102837008 A CN102837008 A CN 102837008A CN 2012102655456 A CN2012102655456 A CN 2012102655456A CN 201210265545 A CN201210265545 A CN 201210265545A CN 102837008 A CN102837008 A CN 102837008A
- Authority
- CN
- China
- Prior art keywords
- motor
- main shaft
- bearing
- motor stator
- built
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a built-in electric spindle, comprising a box body, a front bearing, a rear bearing, a motor stator component, a motor rotor and a spindle unit, wherein the front bearing and the rear bearing are arranged at both ends of the box body respectively; the motor stator component is arranged in the box body as an independent unit and located between the front bearing and the rear bearing; the motor rotor and the spindle unit are arranged in the motor stator component axially; the motor stator component comprises a motor jacket, front and rear motor covers, and a motor gland, wherein the motor jacket is of a sleeve structure opened at both ends and is connected with the box body; the front motor cover and the rear motor cover are arranged at both ends of the motor jacket, and formed into an integral structure with the motor jacket, and a motor stator is provided in the integral structure in an axial direction; and the motor gland is arranged between the box body and the motor jacket and connected with the motor jacket by a bond structure. According to the built-in electric spindle, the electric spindle product with convenience in detachment and maintenance, high rotation precision and stable operation can be provided; and meanwhile, the adverse effects on the precision and the performance of the spindle system caused by repeated detachment and cleaning is avoided effectively.
Description
Technical field
The invention belongs to lathe associated components technical field, more specifically, relate to a kind of for convenience detach and the built-in electric main shaft of safeguarding.
Background technology
The high-speed numeric control lathe is one of technical foundation and developing direction of equipment manufacture, and its service behaviour at first depends on the performance of machine tool chief axis.The electricity main shaft new technology that to be recent years occur in the Digit Control Machine Tool field combines machine tool chief axis and spindle motor together; It with the mover of motor directly as the main shaft of lathe; The housing of main axle unit is exactly an electric machine stand; And cooperate other parts, realize the integrated of motor and machine tool chief axis thus.Built-in electric main shaft can obviously improve rigidity, mode performance, transmission performance and the dynamic response performance of machine tool chief axis, and present high-speed numeric control lathe and ultrahigh speed Digit Control Machine Tool have all adopted the structure of electric main shaft basically.
Built-in electric main shaft can get effects such as the axis system implementation structure compactness, high response speed of Digit Control Machine Tool; Yet its maintenance work is relative complex but: for example; Because between the stator of electric main shaft and the machine tool chief axis is the bigger installation of the magnitude of interference, its installation and removal often need special-purpose instrument and structure; When needs are dismantled and electric main axle structure is installed, often need repeatedly dismantle and install especially, so not only dismantle and complex installation process, and the performance and the precision of electric main shaft also can be affected after repeating to install a plurality of parts.
Application number is that the patent application of CN200920316500.0 discloses a kind of built-in high-speed motorized spindles, wherein through will dynamic and hydrostatic bearing being set at electric main shaft two ends, does not have wearing and tearing, high conversion accuracy and the electric main shaft of high life thereby provide; Yet; It improves main concentrating and is on the set-up mode of bearing, for the structure and the set-up mode and not mentioned of built-in motor self, does not also consider the requirement of the aspects such as installation, cooling of electric main shaft; Especially; Because direct motor housing and the simple integrator of electric main shaft housing, the installation adjustment of motor stator requires to lack consideration fully, does not point out also how motor stator is installed in the case; In addition, during each installation and maintenance, equally need be to carrying out reinstalling of bigger installation of the magnitude of interference and rear bearing between electric mover and the main shaft, and also dismounting and reinstalling all wastes time and energy very much, therefore in practical operation, is not easy to use.
Summary of the invention
Defective and technical need to prior art; The object of the present invention is to provide a kind of built-in electric main shaft; It is through structure and design to motor stator element and other supporting structures; Can provide convenience dismounting and safeguard, the electric principal shaft product that rotating accuracy is high, operate steadily, and effectively avoid unpicking and washing repeatedly the back to the precision that axis system caused and the adverse effect of aspect of performance.
According to the present invention; A kind of built-in electric main shaft is provided; This electricity main shaft comprise casing, respectively be installed in tank ends fore bearing and rear bearing, be arranged in the casing and be in the motor stator component between the said forward and backward bearing as a separate unit; And axially be installed in electric mover and the main axle unit in the motor stator component, wherein:
Said motor stator component comprises:
The motor sheath, this motor sheath is the tube-in-tube structure of both ends open, and links to each other with casing through connector;
Motor protecgulum and motor bonnet, the forward and backward lid of said motor is separately positioned on the two ends of motor sheath, thus with the motor sheath constitute overall structure and within it portion motor stator axially is installed;
The motor gland, this motor gland is arranged between casing and the motor sheath, and links with the location and moment of torsion when transmitting machine operation through bond structure and motor sheath.
Through above structure, and often compare between motor stator in the prior art and the main shaft for the bigger mounting means of the magnitude of interference, need not special instrument and structure and can realize assembling, and can help to improve assembly precision; When needs are dismantled electric main shaft and during later maintenance; Can directly take out motor stator component and need not independent dismounting; Not only can save man-hour like this, the more important thing is and to avoid unpicking and washing repeatedly the back the precision that axis system caused and the adverse effect of aspect of performance.In addition, this electricity main shaft installing and locating is fast, be convenient to operation, can fully guarantee at a high speed and the compactedness and the installation accuracy of high-speed motorized spindles structure, and can further improve the stationarity of high-speed cruising.
As further preferably, said fore bearing and rear bearing are hybrid bearing.
Through forward and backward bearing is set at hybrid bearing, bearing can not come in contact with main shaft and wear and tear during work, and the good rigidity of high-speed cruising, thereby makes stability, rigidity and the precision of single unit system be guaranteed.
As further preferably, be processed with a plurality of cannelures on the outer surface of said motor stator, and adopt sealing ring to seal.
Through the motor stator outer surface is processed a plurality of cannelures, when machine operation, through toward wherein injecting the cool cycles fluid, can make between itself and the motor sheath and form cooling circuit, thus so that efficiently radiates heat is provided to electric main shaft.
As further preferably, said motor gland is the HALF structure.
Through the motor gland is set at the HALF structure, can greatly make things convenient for the dismounting and the later maintenance of motor stator component like this, improve operating efficiency.
In general, according to built-in electric main shaft of the present invention compared with prior art, mainly possess following advantage:
1, through with disposable the installing and fixing of built-in electric main shaft, spindle motor is fixed when main shaft need be safeguarded and dismantle, and need not to reinstall the bigger structure of this magnitude of interference of motor stator, and locating piece when repeating to install, precision are high;
2, not only can fully guarantee the high speed and the compactedness of high-speed motorized spindles structure, the stationarity of high-speed cruising, and be easy to guarantee installation accuracy.And can avoid unpicking and washing repeatedly the back to the precision that axis system caused and the adverse effect of aspect of performance.
Description of drawings
Fig. 1 is the general structure cutaway view according to built-in electric main shaft of the present invention;
Fig. 2 is along the cross sectional representation that direction obtained through motor to electric main shaft shown in Fig. 1.
In institute's drawings attached, identical Reference numeral is used for representing components identical or structure, wherein:
1-casing 2-rear bearing 3-motor bonnet 4-motor gland 5-motor stator 6-bond structure 7-electric mover 8-motor protecgulum 9-fore bearing 10-main shaft 11-motor sheath
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 is the general structure cutaway view according to built-in electric main shaft of the present invention.As shown in fig. 1, according to built-in electric main shaft of the present invention mainly comprise casing 1, respectively be installed in casing 1 rear and front end fore bearing 9 and rear bearing 2, to be arranged on casing 1 as a separate unit inner and axially be installed in motor stator component in the middle of the forward and backward bearing and electric mover and the main axle unit that axially is installed in the motor stator component and is bonded to each other and is integral.
Particularly; The motor stator component that constitutes the integral unit structure comprises such as is the motor sheath 11 of the sleeve-shaped of both ends open, the motor protecgulum 8 that is separately positioned on motor sheath 11 two ends and motor bonnet 3, axially is installed in motor stator 5 in the space of the common formation of motor sheath 11 and motor front and rear covers institute and motor gland 4.Motor protecgulum 8 for example can be fixed on the motor sheath 11 through screw, and motor bonnet 3 has two groups of screws, and wherein one group is used for itself and motor sheath 11 are fixed, and other one group is used for linking to each other with motor stator 5.Motor gland 4 be arranged on motor sheath 11 top and with this part fit mutually, and fix through the connector and the casing 1 of screw and so on.In addition, on motor gland 4, with motor sheath 11 contacted zones, be provided with and for example be the connector of bond structure 6, the moment of torsion during thus to machine operation positions and transmits.After the assembling of accomplishing whole motor stator component, can this separate unit for example be accomplished and casing 1 and forward and backward bearing 9, being connected between 2 through screw.Electric mover 7 axially is installed in motor stator 5 inside, and main shaft 10 is combined into one with electric mover 7 and axially runs through fore bearing 9, whole built-in motor and rear bearing 2.
When installing first according to electric main shaft of the present invention; Can at first assemble motor stator component as separate unit; Then with this unit and electronics mover and main axle unit respectively independent installation to casing, go, correspondingly, and often compare between motor stator in the prior art and the main shaft for the bigger mounting means of the magnitude of interference; Need not special instrument and structure and can realize assembling, and can improve assembly precision.When needs to dismantling according to electric main shaft of the present invention and during later maintenance; Can directly take out the motor part; Perhaps take out the electric mover be combined into one and main shaft respectively and as the motor stator component of complete separate unit, and need not to dismantle separately stator module; When the completion maintenance repeats to install; Can directly electric mover and main axle unit, motor stator component be respectively installed on the casing; And when repeating to install the location fast, be convenient to operation; Not only can fully guarantee the high speed and the compactedness of high-speed motorized spindles structure, the stationarity of high-speed cruising, and be easy to guarantee installation accuracy.Especially,, not only can save man-hour like this, the more important thing is and to avoid unpicking and washing repeatedly the precision that possibly cause axis system the back and the adverse effect of aspect of performance owing to can avoid electric main axle structure because of safeguarding and repeatedly dismounting and installment work during maintenance.
In a preferred embodiment; Consider that caloric value was big when electric main shaft was worked; Heat radiation for ease can process a plurality of cannelures on the outer surface of the motor stator 5 of built-in motor, and adopts altogether that O-ring seal seals; When machine operation toward wherein such as the circulation of fluid of cooling, make thus between itself and the motor sheath 11 and form cooling circuit.In another preferred embodiment, motor gland 4 can be designed to the HALF structure, thus greatly handled easily personnel's dismounting and installment work.
In sum, simple according to electric main axle structure of the present invention, the scope of application is wide, rotating accuracy is high, high stability is good.This axis system is convenient to repeatedly dismantle, safeguard quick and convenient and precision is easy to guarantee, thereby can be used as the built-in electric main shaft of various high speeds, superfast lathe, is applicable to that rigidity and transmission requirement are high, compact conformation and occasion for convenience detach and maintenance.
Those skilled in the art will readily understand; The above is merely preferred embodiment of the present invention; Not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. built-in electric main shaft; This electricity main shaft comprise casing (1), respectively be installed in casing (1) two ends fore bearing (9) and rear bearing (2), be arranged in the casing (1) and be in the motor stator component between the said forward and backward bearing as a separate unit; And axially be installed in electric mover and the main axle unit in the motor stator component, wherein:
Said motor stator component comprises:
Motor sheath (11), this motor sheath is the tube-in-tube structure of both ends open, and links to each other with casing (1) through connector;
Motor protecgulum (8) and motor bonnet (3), the forward and backward lid of said motor is separately positioned on the two ends of motor sheath (11), thus with the motor sheath constitute overall structure and within it portion motor stator (5) axially is installed;
Motor gland (4), this motor gland (4) is arranged between casing (1) and the motor sheath (11), and links with the location and moment of torsion when transmitting machine operation through bond structure (6) and motor sheath (11).
2. electric main shaft as claimed in claim 1 is characterized in that, said fore bearing (9) and rear bearing (2) for example are hybrid bearing.
3. according to claim 1 or claim 2 electric main shaft is characterized in that, is processed with a plurality of cannelures on the outer surface of said motor stator (5), and adopts sealing ring to seal.
4. like any described electric main shaft of claim 1-3, it is characterized in that said motor gland (4) is the HALF structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265545.6A CN102837008B (en) | 2012-07-27 | 2012-07-27 | Built-in electric spindle capable of being detached and maintained conveniently |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265545.6A CN102837008B (en) | 2012-07-27 | 2012-07-27 | Built-in electric spindle capable of being detached and maintained conveniently |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102837008A true CN102837008A (en) | 2012-12-26 |
| CN102837008B CN102837008B (en) | 2014-09-24 |
Family
ID=47364881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210265545.6A Active CN102837008B (en) | 2012-07-27 | 2012-07-27 | Built-in electric spindle capable of being detached and maintained conveniently |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102837008B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416170A (en) * | 2013-09-11 | 2015-03-18 | 苏海君 | Numerical control machine tool with built-in motor |
| CN105772749A (en) * | 2016-05-26 | 2016-07-20 | 南昌市新通新发实业有限公司 | Integrated machine tool headstock |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0362781A2 (en) * | 1988-10-07 | 1990-04-11 | Mca Micro Crystal Ag | High-frequency spindle for machining workpieces |
| CN201044389Y (en) * | 2007-05-31 | 2008-04-02 | 熊万里 | Electric motor built-in type activity piezo-electricity principal axis |
| CN101553671A (en) * | 2006-09-16 | 2009-10-07 | 伊纳驱动及机电有限商业两合公司 | Drive unit |
| CN101557136A (en) * | 2009-05-18 | 2009-10-14 | 胡惜时 | High speed electric principal axis |
| CN201399720Y (en) * | 2009-03-17 | 2010-02-10 | 湖南宇环同心数控机床有限公司 | CBN high-speed built-in grinding wheel rack of electric spindle |
| CN102078974A (en) * | 2010-12-29 | 2011-06-01 | 广州市昊志机电有限公司 | Air floatation high-speed electric main shaft |
| CN201880924U (en) * | 2010-11-15 | 2011-06-29 | 宁夏新瑞长城机床有限公司 | Spindle box suitable for numerically controlled lathe to adopt in-built electrical spindle |
-
2012
- 2012-07-27 CN CN201210265545.6A patent/CN102837008B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0362781A2 (en) * | 1988-10-07 | 1990-04-11 | Mca Micro Crystal Ag | High-frequency spindle for machining workpieces |
| CN101553671A (en) * | 2006-09-16 | 2009-10-07 | 伊纳驱动及机电有限商业两合公司 | Drive unit |
| CN201044389Y (en) * | 2007-05-31 | 2008-04-02 | 熊万里 | Electric motor built-in type activity piezo-electricity principal axis |
| CN201399720Y (en) * | 2009-03-17 | 2010-02-10 | 湖南宇环同心数控机床有限公司 | CBN high-speed built-in grinding wheel rack of electric spindle |
| CN101557136A (en) * | 2009-05-18 | 2009-10-14 | 胡惜时 | High speed electric principal axis |
| CN201880924U (en) * | 2010-11-15 | 2011-06-29 | 宁夏新瑞长城机床有限公司 | Spindle box suitable for numerically controlled lathe to adopt in-built electrical spindle |
| CN102078974A (en) * | 2010-12-29 | 2011-06-01 | 广州市昊志机电有限公司 | Air floatation high-speed electric main shaft |
Non-Patent Citations (1)
| Title |
|---|
| 孙彦旭等: "数控车床电主轴总体结构方案的创新设计", 《机床电器》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104416170A (en) * | 2013-09-11 | 2015-03-18 | 苏海君 | Numerical control machine tool with built-in motor |
| CN105772749A (en) * | 2016-05-26 | 2016-07-20 | 南昌市新通新发实业有限公司 | Integrated machine tool headstock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102837008B (en) | 2014-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103286331A (en) | Mesoporous water-through jacking electric spindle | |
| CN209157136U (en) | A kind of permanent magnet synchronization motor spindle | |
| CN102886534B (en) | High-speed and high-rigidity dynamic and static pressure built-in electric main shaft | |
| CN102837008B (en) | Built-in electric spindle capable of being detached and maintained conveniently | |
| EP0017344B1 (en) | A direct drive high speed ultracentrifuge | |
| CN103100729B (en) | High-speed electric main shaft device using sliding bearing and rolling bearing for composite support | |
| CN211127434U (en) | Permanent magnet synchronous motor directly-driven submersible pump | |
| CN101702544B (en) | Tilting-pad bearing built-in motor | |
| CN206316494U (en) | A kind of torque motor drives electric spark with full immersion liquid turntable | |
| CN104907876A (en) | High-power electric spindle with multiple coaxial and series-wound motors | |
| CN102116322B (en) | Equipment cooling water pump for nuclear power station | |
| CN212615552U (en) | Centrifugal compressor for hydrogen fuel cell | |
| CN211296392U (en) | Integrated structure of harmonic speed reducer and motor | |
| CN203061898U (en) | Nesting electric spindle passing water through middle hole | |
| CN207333273U (en) | Emergency feedwater pumps | |
| JP2012039816A (en) | Power generator and power generation system | |
| CN219802014U (en) | Vibrating motor with protective structure | |
| CN201925233U (en) | Equipment cooling pump for nuclear power station | |
| CN212885065U (en) | Sealed hydraulic braking lathe electric spindle | |
| CN201563017U (en) | Tilting-pad bearing built-in type motor | |
| CN215431551U (en) | High-rigidity electric main shaft bearing framework | |
| BR112016006119B1 (en) | HYDRAULIC POWER RECOVERY TURBINE AND ROTATING EQUIPMENT DRIVE ARRANGEMENT | |
| CN217002335U (en) | Combined sealing structure and centrifugal fan | |
| CN203635940U (en) | Turning hydrostatic pressure electric spindle | |
| CN101217239A (en) | An electric spindle with inner electric machine and radical air bearing integration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |