CN108964341A - A kind of spindle motor device - Google Patents
A kind of spindle motor device Download PDFInfo
- Publication number
- CN108964341A CN108964341A CN201811009571.6A CN201811009571A CN108964341A CN 108964341 A CN108964341 A CN 108964341A CN 201811009571 A CN201811009571 A CN 201811009571A CN 108964341 A CN108964341 A CN 108964341A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- ladder
- spindle motor
- rotor
- tool changing
- 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.)
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- 239000000306 component Substances 0.000 claims abstract description 38
- 239000008358 core component Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 206010022000 influenza Diseases 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention provides a kind of spindle motor devices, comprising: stator casing component and the rotor axle core component that the stator casing component internal is arranged in, the rotor axle core component include mandrel and the tool changing pull rod being arranged in inside the mandrel.Mounting structure of the present invention due to using ladder in the lower end of mandrel, increase the wall thickness of mandrel lower end, it can still guarantee the intensity of mandrel lower end in the case where the mandrel entirety diameter of axle reduces, existing spindle motor is solved in order to realize the technical issues of mandrel diameter of axle that runs at high speed reduces, mandrel lower end is easy to cause to deform or split.
Description
Technical field
The present invention relates to electro spindle field more particularly to a kind of spindle motor devices.
Background technique
Traditional spindle motor device, rotor axle core component is packed by the upper end of stator casing component, for the ease of installing,
At this point, the diameter of axle of the lower end of the mandrel in rotor axle core component can not design it is bigger, and in order to realize the higher revolving speed of mandrel,
The diameter of mandrel entirety must just become smaller, and mandrel integral diameter becomes smaller, and mandrel lower end diameter also will and then become smaller, and because mandrel
Lower end inner cavity in be provided with tool changing pulling claw, the mandrel lower end diameter rear mandrel wall thickness that becomes smaller becomes smaller, and long-term tool changing operation is easy
The deformation of mandrel lower end is caused either to be split.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of spindle motor devices, it is intended to solve
Existing spindle motor needs to reduce the mandrel diameter of axle when running at high speed, the mandrel diameter of axle becomes smaller, be easy to cause mandrel lower end deform or
The technical issues of splitting.
Technical scheme is as follows:
A kind of spindle motor device, wherein include: stator casing component and turn that the stator casing component internal is set
Sub- axle core component, the rotor axle core component include mandrel and the tool changing pull rod being arranged in inside the mandrel, the mandrel
Lateral surface be disposed with the first ladder, the second ladder that the diameter of axle gradually successively decreases, third ladder and fourth order ladder from the bottom to top,
It is arranged with lower cover, lower bearing and rotor, the stator casing respectively on second ladder, third ladder and fourth order ladder
Component includes body fuselage, and the inside of the body fuselage is from top to bottom disposed with upper bearing (metal) and stator, and the mandrel is logical
The lower part for crossing the body fuselage is mounted on the inside of the body fuselage.
The spindle motor device, wherein first ladder is outward extended with dust-proof end cap.
The spindle motor device, wherein the first cover board and the second cover board are arranged at intervals with inside the body fuselage,
It is provided with top chock between first cover board and the second cover board, is provided between the top chock and the body fuselage
Ball sleeve, the upper bearing (metal) are fixed on the interior of shell by the top chock.
The spindle motor device, wherein be provided with preloading spring between second cover board and the top chock.
The spindle motor device, wherein the both ends of the lower bearing pass through washer and lower bearing locking nut respectively
It is fixed, the both ends of the rotor pass through lower bearing locking nut respectively and rotor fixture nut is fixed, the rotor
Connecting bolt is provided between lower bearing locking nut.
The spindle motor device, wherein be provided with convex block on the medial surface of the mandrel, covered on the tool changing pull rod
Equipped with disc spring, recovery of the disc spring with the bump contact and for tool changing pull rod after tool changing.
The utility model has the advantages that a kind of spindle motor device provided by the invention, comprising: stator casing component and setting are described
The rotor axle core component of stator casing component internal, the rotor axle core component include mandrel and are arranged inside the mandrel
Tool changing pull rod.Mounting structure of the present invention due to using ladder in the lower end of mandrel, increases the wall thickness of mandrel lower end,
The mandrel entirety diameter of axle can still guarantee the intensity of mandrel lower end in the case where reducing, solve existing spindle motor to realize
It runs at high speed, the mandrel diameter of axle reduces, the technical issues of being easy to cause the deformation of mandrel lower end or split.
Detailed description of the invention
Fig. 1 is a kind of configuration schematic diagram of electric chief axis system.
Fig. 2 is a kind of the schematic diagram of the section structure of electric chief axis system.
Fig. 3 is a kind of floating cylinder device the schematic diagram of the section structure of electric chief axis system.
Fig. 4 is a kind of spindle motor device the schematic diagram of the section structure of electric chief axis system.
Specific embodiment
A kind of spindle motor device provided by the invention, for make the purpose of the present invention, technical solution and effect it is clearer,
Clear, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used to explain this
Invention, is not intended to limit the present invention.
Refering to fig. 1 and Fig. 2, a kind of electric chief axis system, comprising: floating cylinder device 10 and spindle motor device 20, institute
Floating cylinder device 10 is stated including outer cylinder body 30 and being made of inside the outer cylinder body several piston components stacking is set
The inner cylinder body 40 to float up and down, the spindle motor device 20 include stator casing component 50 and be arranged in the stator
The top of rotor axle core component 60 inside casing assembly, the rotor axle core component 60 is provided with nut 70；Referring to Fig. 3, institute
The lower part for stating inner cylinder body 40 is connected with for the pulling plate 80 by the fixed rotor axle core component of nut described in drawing, described interior
It is provided with ear 90 on the lateral surface of cylinder body 40, groove portion 100, ear's fitting are provided on the medial surface of the outer cylinder body 30
It can float up and down in the groove portion and along the groove portion；Referring to fig. 4, the rotor axle core component 60 include mandrel 110 and
Tool changing pull rod 120 inside the mandrel is set, the nut is arranged on the mandrel, referring to Fig. 3, the outer cylinder body 30
Including shell 130, front cover 140 and rear cover 150, the piston component includes piston 160 and plug sleeve 170, in the shell 130
It is provided with and is connected to the groove portion and is used to that in-migration under the ear to be driven to control the first air flue 180 that the inner cylinder body moves down,
Being provided centrally with for the rear cover 150 contacts the second gas for carrying out tool changing with the tool changing pull rod for driving the piston to move down
190；The third air flue 200 separated for controlling the piston with the tool changing pull rod is provided in the plug sleeve 170.
Existing electro spindle is since in tool changing, piston effect is on tool changing pull rod, and tool changing pull rod is mounted on mandrel, piston
The active force of tool changing pull rod can be transmitted on mandrel by tool changing pull rod, then be transmitted to the bearing for fixed central spindle, from
And impact when bearing being made to bear each tool changing, cause the service life of bearing to decline, technical solution of the present invention due to
The inner cylinder body that can be floated up and down is arranged in the inside of outer cylinder body, and setting is used for fixed rotor axle core component core in the lower part of inner cylinder body
The pulling plate of axis top nut undertakes part mandrel stress by pulling plate when tool changing, and impact when reducing tool changing to bearing improves axis
Hold service life.
Specifically, the floating cylinder electro spindle in the present invention is realized in tool changing by the collective effect of three air flues,
Exchanging knives process, the second air flue air inlet at rear cover center, piston moves down, after the tool changing pull rod of the piston top side of staying, piston group
The inside of part starts gas storage, and the nut on mandrel is lived in the dynamic pulling plate drawing of shipper pole to inner cylinder body on the whole, mandrel is fixed, on inner cylinder body
Behind extreme higher position, at this point, piston continues to move down, the tool changing pull rod in mandrel is released, realizes tool changing.
After tool changing is completed, the third air flue air inlet in intracorporal first air flue of outer cylinder body shell and inner cylinder body plug sleeve, wherein
First air flue air inlet pushes inner cylinder body integrally to move down, and the nut separation in pulling plate and mandrel, third air flue air inlet pushes on piston
It moves and is separated with the realization of tool changing pull rod.
Referring to fig. 4, in preferred embodiment, the lateral surface of the mandrel 110 is disposed with the diameter of axle from the bottom to top and gradually successively decreases
The first ladder 210, the second ladder 220, third ladder 230 and fourth order ladder 240, second ladder, third ladder and
Lower cover 250, lower bearing 260 and rotor 270 are arranged on four-step respectively, the stator casing component 50 includes outside body
Shell 280, the inside of the body fuselage are from top to bottom disposed with upper bearing (metal) 290 and stator 300, and the mandrel passes through described
The lower part of body fuselage is mounted on the inside of the body fuselage, wherein lower cover and the second ladder gap setting, lower cover connect
It connects and is fixed on body fuselage, do not rotated with mandrel.
The spindle motor assembly of existing electro spindle, rotor axle core component is packed by the upper end of stator casing component, in order to just
In installation, at this point, the diameter of axle of the lower end of the mandrel in rotor axle core component can not design it is bigger, and in order to realize that mandrel is higher
Revolving speed, the diameter of mandrel entirety must just become smaller, and the diameter of mandrel entirety becomes smaller, and because set in the inner cavity of the lower end of mandrel
It is equipped with tool changing pulling claw, the lower end diameter rear mandrel wall thickness that becomes smaller must become smaller, and long-term tool changing operation is easy to cause mandrel lower end to deform
Either split.The present invention designs the gradually smaller ladder of the diameter of axle by optimization design axle core component structure, in the lower end of mandrel
For installing lower cover, lower bearing and rotor, and using by the installation of installation axle core component upwards below stator casing component
The setting of structure, hierarchic structure can make mandrel front end be strengthened, thus improve rotor axle core component at higher turn
Can still have long service life under speed.
In preferred scheme, first ladder is outward extended with dust-proof end cap 310.Dust-proof end cap is wholely set with mandrel, both
It ensure that the secured of dust-proof end cap, and external dust granule can be effectively prevent to enter in motor from the bottom of motor and caused
The damage of motor.
In preferred embodiment, it is arranged at intervals with the first cover board 320 and the second cover board 330 inside the body fuselage, described
It is provided with top chock 340 between one cover board and the second cover board, rolling is provided between the top chock and the body fuselage
Bead sleeve 350, the upper bearing (metal) are fixed on the interior of shell by the top chock.Specifically, setting inside body fuselage
There is convex shoulder, the first cover board is overlapped on convex shoulder position, upper bearing (metal) mounting base is provided with above the first cover board, certainly, for convenience
Installation and taking-up of the bearing mounting base in body fuselage, are provided with ball sleeve between the top chock and shell, and first
It is attached between cover board, bearing mounting base and the second cover board by screw.
Specifically, the both ends of the lower bearing pass through washer 360 respectively and lower bearing locking nut 370 is fixed, pad
Circle is provided with gap, lower axle bearing outer-ring is by being full of for fixing lower bearing inner ring between lower bearing locking nut and body fuselage
Cooperation is fixed on body fuselage inner wall, and the both ends of gap setting between washer and lower cover, the rotor pass through lower bearing respectively
Locking nut 370 and rotor fixture nut 380 are fixed, and connection is provided between the rotor and lower bearing locking nut and is inserted
Pin 390.It is provided with rotor above lower bearing locking nut, which is set on third ladder, due to rotor needs and core
Axis bears high revolving speed together, in order to guarantee the bonding strength of rotor, also carries out between lower bearing locking nut and rotor slotting
Pin connection, naturally it is also possible to rotor and lower bearing locking nut are attached fixation, body fuselage by the way of key connection
Lower part be provided with lower bearing installation inner cavity, which extends internally and has limiting section, which is used for outside to lower bearing
Circle is limited, and lower bearing and stator contact are prevented, it is preferred that the lower bearing is provided with 2, and leads between adjacent lower bearing
It crosses spacer to separate, prevents the stress between bearing from concentrating.
In preferred embodiment, preloading spring is provided between second cover board and the top chock.To top chock into
Row pre-tightens, and is the rigidity of the running accuracy and increase support in order to improve bearing, reduces vibration when axis work.
Referring to Fig. 3, in preferred embodiment, the piston component is provided with 5 groups, from top to bottom successively includes first stage piston component
400, second piston component 410, three-level piston component 420, level Four piston component 430 and ejector piston component 440, described one
Grade piston component, second piston component, three-level piston component and level Four piston component the center of piston be extended and have the
Two air flues.Piston component in the present invention is arranged 5 groups, since single ejector piston component is limited to that stress surface is smaller, generation
Thrust is also limited, passes through the stacking of multiple piston components, wherein first stage piston component, second piston component, three-level piston component
And on level Four piston component be extended have the second air flue, air flue air inlet, gas is packed into piston cavity and acts on each work
The upper surface of plug increases the forced area of bottom ejector piston component by using the upper surface of multiple pistons, can generate
More preferably thrust effect.
In preferred embodiment, in order to guarantee the airtightness of floating cylinder entirety, the contact position and plug of adjacent pistons component
The contact position of set and piston is provided with sealing ring.
In preferred embodiment, the piston is T-type piston, and the T-type piston includes laterally top and vertical axle portion, described
Second air flue is arranged in the vertical axle portion of the T-type piston, is provided with to come convenient for gas storage on the laterally top of the T-type piston
The groove 450 for driving the inner cylinder body to move up.By the way that the groove is arranged, in the second air flue air inlet, facilitate gas to piston cross
It is spread to the two sides at top, Fast Filling top land drives the floating upward quickly of inner cylinder body.
Referring to fig. 4, in preferred embodiment, it is provided with convex block 460 on the medial surface of the mandrel, is arranged on the tool changing pull rod
There are disc spring 470, the disc spring and the bump contact and the recovery for tool changing pull rod after tool changing.Under the tool changing pull rod
End is provided with the pulling claw for fixed cutting tool.
In conclusion a kind of spindle motor device provided by the invention, comprising: stator casing component and setting are described
The rotor axle core component of stator casing component internal, the rotor axle core component include mandrel and are arranged inside the mandrel
Tool changing pull rod.Mounting structure of the present invention due to using ladder in the lower end of mandrel, increases the wall thickness of mandrel lower end,
The mandrel entirety diameter of axle can still guarantee the intensity of mandrel lower end in the case where reducing, solve existing spindle motor to realize
The technical issues of mandrel diameter of axle that runs at high speed reduces, and mandrel lower end is easy to cause to deform or split.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (6)
1. a kind of spindle motor device characterized by comprising stator casing component and setting are in the stator casing component
Internal rotor axle core component, the rotor axle core component include mandrel and the tool changing pull rod being arranged in inside the mandrel,
The lateral surface of the mandrel be disposed with from the bottom to top the first ladder that the diameter of axle gradually successively decreases, the second ladder, third ladder and
Fourth order is terraced, is arranged with lower cover, lower bearing and rotor, institute respectively on second ladder, third ladder and fourth order ladder
Stating stator casing component includes body fuselage, and the inside of the body fuselage is from top to bottom disposed with upper bearing (metal) and stator,
The mandrel is mounted on the inside of the body fuselage by the lower part of the body fuselage.
2. spindle motor device according to claim 1, which is characterized in that first ladder is outward extended with dust-proof end
Lid.
3. spindle motor device according to claim 1, which is characterized in that be arranged at intervals with inside the body fuselage
One cover board and the second cover board, are provided with top chock between first cover board and the second cover board, the top chock with it is described
Ball sleeve is provided between body fuselage, the upper bearing (metal) is fixed on the interior of shell by the top chock.
4. spindle motor device according to claim 3, which is characterized in that second cover board and the top chock it
Between be provided with preloading spring.
5. spindle motor device according to claim 1, which is characterized in that the both ends of the lower bearing pass through washer respectively
Be fixed with lower bearing locking nut, the both ends of the rotor pass through respectively lower bearing locking nut and rotor fixture nut into
Row is fixed, and is provided with connecting bolt between the rotor and lower bearing locking nut.
6. spindle motor device according to claim 1, which is characterized in that be provided on the medial surface of the mandrel convex
Block, is arranged with disc spring on the tool changing pull rod, the disc spring and the bump contact and for after tool changing tool changing pull rod it is extensive
It is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009571.6A CN108964341B (en) | 2018-08-31 | 2018-08-31 | Spindle motor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009571.6A CN108964341B (en) | 2018-08-31 | 2018-08-31 | Spindle motor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108964341A true CN108964341A (en) | 2018-12-07 |
| CN108964341B CN108964341B (en) | 2024-05-28 |
Family
ID=64475269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811009571.6A Active CN108964341B (en) | 2018-08-31 | 2018-08-31 | Spindle motor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108964341B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011468A (en) * | 2019-05-08 | 2019-07-12 | 天津市百利溢通电泵有限公司 | A kind of horizontal submersible electric motor |
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| CN107695762A (en) * | 2017-10-09 | 2018-02-16 | 广州市昊志机电股份有限公司 | A kind of electro spindle |
| CN107838440A (en) * | 2017-10-09 | 2018-03-27 | 广州市昊志机电股份有限公司 | A kind of electro spindle with central water outlet push rod tool changing device |
| CN208806706U (en) * | 2018-08-31 | 2019-04-30 | 佛山善能机电科技有限公司 | A kind of spindle motor device |
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2018
- 2018-08-31 CN CN201811009571.6A patent/CN108964341B/en active Active
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|---|---|---|---|---|
| US20070085432A1 (en) * | 2005-10-14 | 2007-04-19 | Matsushita Electric Industrial Co., Ltd. | Spindle motor and rotation device |
| CN201113721Y (en) * | 2007-09-30 | 2008-09-10 | 任奕彪 | Bearing-free magnetic levitation electric motor |
| CN102078973A (en) * | 2010-12-29 | 2011-06-01 | 广州市昊志机电有限公司 | Roll ball high-speed electronic spindle |
| CN202591629U (en) * | 2012-05-31 | 2012-12-12 | 河南森茂机械有限公司 | Main shaft of machine tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011468A (en) * | 2019-05-08 | 2019-07-12 | 天津市百利溢通电泵有限公司 | A kind of horizontal submersible electric motor |
| CN110011468B (en) * | 2019-05-08 | 2023-11-07 | 天津市百利溢通电泵有限公司 | Horizontal submerged motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108964341B (en) | 2024-05-28 |
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