CN109365837A - A kind of air-flotation electric spindle - Google Patents
A kind of air-flotation electric spindle Download PDFInfo
- Publication number
- CN109365837A CN109365837A CN201811324506.2A CN201811324506A CN109365837A CN 109365837 A CN109365837 A CN 109365837A CN 201811324506 A CN201811324506 A CN 201811324506A CN 109365837 A CN109365837 A CN 109365837A
- Authority
- CN
- China
- Prior art keywords
- air
- spindle
- central spindle
- flotation electric
- cooling duct
- 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.)
- Pending
Links
Classifications
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of air-flotation electric spindle, revolving speed can be more than 200000rpm, including body, central spindle, air-bearing component, rotor, stator and tool-broaching mechanism；The central spindle is arranged in body；The air-bearing component is mounted in the body, and the support shaft；Rotor includes the cage grooves being provided in central spindle and the copper for being embedded in cage grooves；Stator includes iron core, low speed winding and high speed winding；Iron core is arranged in body, and is matched with rotor；Low speed winding and high speed winding are separately mounted on iron core；Tool-broaching mechanism is connected with central spindle transmission；Rotor of the invention is combined using cage grooves and copper realization with central spindle, reduce the overall diameter of rotor and central spindle, so that rotor and the overall diameter of central spindle meet requirement when this air-flotation electric spindle runs at high speed, later by being powered to high speed winding or low speed winding, realize the different revolving speed of this air-flotation electric spindle, and then the hole of processable different pore size.
Description
Technical field
The present invention relates to machinery field equipment more particularly to a kind of air-flotation electric spindles.
Background technique
Currently, more and more new technologies continue to bring out, machining row with the demand that economic development and technology soar
Industry is also being a dark horse, and especially the main shaft industry technology of position oneself at the forefront is innovated clearly.Now use air-flotation electric spindle
Drilling processing is carried out to PCB circuit board, is become increasingly complex as electronic component is miniaturized with all kinds of electrical functions, at present PCB
Plate processing needs simultaneous processing macropore and aperture, and when processing, revolving speed can add in the electro spindle of the 200000rpm slow-speed of revolution below
The macropore of work pore diameter range Φ 0.1mm- Φ 7.0mm, revolving speed are more than that the high-revolving electro spindle of 200000rpm can process aperture
The micropore of range Φ 0.05- Φ 0.1mm；The processing of existing PCB circuit board needs simultaneous processing macropore and micropore, however existing
Electro spindle have the following deficiencies: that electro spindle is only able to achieve a kind of revolving speed, and be only capable of processing the hole of a type；Further,
Since existing electro spindle stability is poor, the performance of electro spindle is caused to be limited in 200000rpm hereinafter, and being only capable of processing big
Hole, practicability are poor.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of air-flotation electric spindles, are able to achieve low
Revolving speed and high revolving speed and be capable of processing macropore and micropore, it is practical.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of air-flotation electric spindle, including
Body；
Central spindle；The central spindle is arranged in the body；
Air-bearing component；In the air-bearing component installation and the body, and central spindle described in support；
Rotor；The rotor includes the cage grooves being provided in the central spindle and the copper for being embedded in the cage grooves；
Stator；The stator includes iron core, low speed winding and high speed winding；The iron core is arranged in the body, and
It is matched with the rotor；The low speed winding and the high speed winding are separately mounted on the iron core；
Tool-broaching mechanism；The tool-broaching mechanism is connected with central spindle transmission.
Further, the air-flotation electric spindle further includes velocity package, and the velocity package includes velocity sensor, installation
It seat and at least two tests the speed hole, at least two holes of testing the speed are sequentially arranged at intervals around the circumferential direction of the central spindle；The mounting base peace
On the air-bearing component；The velocity sensor is mounted in the mounting base and for incuding the hole of testing the speed.
Further, the mounting base offers mounting groove, and the mounting groove inner wall is fixed with anti-skidding glue-line.
Further, the body offers the first inlet channel, shape between the air-bearing component and the central spindle
At there is the second inlet channel；Damping plug is provided on the air-bearing component；First inlet channel passes through the damping
The aperture of plug is connected to the second inlet channel.
Further, the air-bearing component include be placed in the central spindle up and down two sides upper air-bearing and lower gas
Floating axle is held；The upper air-bearing includes the upper inner sleeve being set in outside the central spindle and is set in upper outer outside the upper inner sleeve
Set, is provided with the first sealing ring between the upper inner sleeve and the upper housing；The lower air-bearing includes being set in the axis
Lower inner sleeve outside core and the lower housing being set in outside the lower inner sleeve, are provided with second between the lower inner sleeve and the lower housing
Sealing ring.
Further, the body offers feed pathway and liquid outlet channel；The lower housing offers and the feed liquor
First cooling duct of channel connection；The lower inner sleeve offers the second cooling duct being connected to first cooling duct；
The upper inner sleeve offers the third cooling duct being connected to second cooling duct；The upper housing offers and described
4th cooling duct of three cooling ducts connection；4th cooling duct is connected to the liquid outlet channel.
Further, first cooling duct, the second cooling duct, third cooling duct and the 4th are cooling logical along institute
State the circumferentially extending of central spindle.
Further, the tool-broaching mechanism includes cylinder, pull rod, disc spring and collet；The pull rod is actively located in described
In central spindle；The disc spring is for providing the elastic stress for promoting the pull rod to move upwards；The cylinder is for pushing downwards institute
Pull rod is stated, and the cylinder body of the cylinder is embedded with diaphragm；The collet and the pull rod are sequentially connected.
Further, the piston jacket of the cylinder is equipped with third sealing ring, the third sealing ring and the cylinder
Wearing piece is provided between cylinder body, the wearing piece is made of wear-resistant material.
Further, the cylinder is fixed with guide sleeve, and the pull rod is actively located in the guide sleeve.Compared to existing
Technology, the beneficial effects of the present invention are:
Rotor of the invention is combined using cage grooves and copper realization with central spindle, reduce rotor and central spindle it is total directly
Diameter, central spindle flies out when avoiding running at high speed, and improves its stability, in this way, later by high speed winding be powered when, realize this gas
Floating electro spindle high-speed rotation, and then micropore can be added；When simultaneously, by being powered to low speed winding, realize that this air-flotation electric spindle is low
Speed rotation and high power requirements, and then processable macropore；From the foregoing, it will be observed that processing micropore can be realized in this air-flotation electric spindle, may be used also
Realize processing macropore simultaneously, practical performance is preferable.
Detailed description of the invention
Fig. 1 is one of the cross-sectional view of air-flotation electric spindle of the present invention；
Fig. 2 is the schematic enlarged-scale view of part A in Fig. 1 of the present invention；
Fig. 3 is two (being the cross-sectional view of different angle with Fig. 1) of the cross-sectional view of air-flotation electric spindle of the present invention.
In figure: 10, body；11, feed pathway；12, liquid outlet channel；20, central spindle；30, air-bearing component；31, upper gas
Floating axle is held；311, upper inner sleeve；312, upper housing；313, the first sealing ring；32, lower air-bearing；321, lower inner sleeve；322, lower outer
Set；323, the second sealing ring；40, rotor；50, stator；60, tool-broaching mechanism；61, cylinder；62, pull rod；63, disc spring；64, it presss from both sides
Head；70, velocity sensor；80, the first inlet channel；90, damping plug；100, the first cooling duct；110, the second cooling duct；
120, third cooling duct；130, the 4th cooling duct；140, third sealing ring；150, wearing piece；170, guide sleeve；180, film
Piece；190, cover board；200, the 4th sealing ring.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of air-flotation electric spindle as shown in Figs. 1-3, including body 10, central spindle 20, air-bearing component 30, rotor 40,
Stator 50 and tool-broaching mechanism 60；The central spindle 20 is arranged in body 10；The air-bearing component 30 is mounted in the body 10, and
The support shaft；Rotor 40 includes the cage grooves being provided in central spindle 20 and the copper for being embedded in cage grooves；Stator 50 includes iron
Core, low speed winding and high speed winding；Iron core is arranged in body 10, and is matched with rotor 40；Low speed winding and high speed are around component
It is not mounted on iron core；Tool-broaching mechanism 60 is connected with the transmission of central spindle 20；When processing, tool-broaching mechanism 60 clamp cutter, to low speed around
Group or high speed winding are powered, so that constituting alternating magnetic field between stator 50 and rotor 40, rotor 40 generates induced current at this time,
So that rotor 40 generates rotation torque, rotor 40 drives entire central spindle 20 to rotate, and central spindle 20 is linked by tool-broaching mechanism 60
Processing is realized in cutter rotation；At this point, so meeting 40 performance of rotor since rotor 40 is arranged using the space in central spindle 20
Meanwhile reduce the overall volume of central spindle 20 and rotor 40, to avoid in high revolving speed central spindle 20 fly out body 10, improve this air bearing
The stability of air-flotation electric spindle,；In this way, realizing that central spindle 20 is rotated with the cutter slow-speed of revolution, and have when being powered to low speed winding
There is high power, and then can realize the processing of the biggish macropore in aperture；And when being powered to high speed winding, realize central spindle 20 with moving knife
Have slow-speed of revolution rotation, and there is low revolutional slip, and then can realize the processing in the lesser hole in aperture.
Both herein it should be understood that " low speed and high speed " in low speed winding and high speed winding is in contrast；Tool
Body, low speed winding refers to that output power is lower, in input voltage, realizes the winding of the main slow-speed of revolution operating of this air-flotation electric；It is high
Fast winding refers to that output power is higher, in input voltage, realizes the winding of the high rotation speed operation of this air-flotation electric spindle；It needs herein
Illustrate, when above-mentioned " high revolving speed and the slow-speed of revolution " refers to respectively to low speed winding or to high speed winding power, this air-flotation electric
Main shaft two revolving speed sizes obtained compare, and revolving speed is greatly high revolving speed, and revolving speed is small for the slow-speed of revolution.
Furthermore the winding that rated output power is 1.0KW or more in practical applications, according to the actual situation, may be selected
For the high speed winding, in this way, the revolving speed of this air-flotation electric spindle can be made to be up to 200000rpm or more, Jin Erke after normal power-up
Realize the processing of the micropore of pore diameter range Φ 0.05- Φ 0.1mm；It is on the contrary then anti-；Furthermore select rated power 0.84KW and following
Winding be low speed winding, in this way, after normal power-up, the revolving speed of this air-flotation electric spindle can be made to be equal to or less than 120000rpm
Hereinafter, can realize the processing of the macropore of pore diameter range Φ 0.2mm- Φ 7.0mm in turn.
For the working order of real-time monitoring main shaft, this air-flotation electric spindle further includes velocity package, and velocity package includes surveying
Fast sensor 70, mounting base and at least two test the speed hole, and at least two holes of testing the speed are sequentially arranged at intervals around the circumferential direction of central spindle 20；
Mounting base is mounted on air-bearing component 30；Velocity sensor 70 is mounted in mounting base and for incuding hole of testing the speed；It tests the speed
Be preset with rotation speed calculating routine in sensor 70, it is assumed that the quantity in hole of testing the speed be it is N number of, in this way, detecting N in velocity sensor 70
+ 1 test the speed hole when, i.e., central spindle 20 rotates a circle, and later according to preset program, obtains the revolving speed of central spindle 20；In above structure,
Velocity sensor 70 is mounted on air-bearing component 30, and hole is tested the speed to obtain central spindle 20 by velocity sensor 70
Revolving speed, the relatively existing mode being mounted on velocity package in central spindle 20 can reduce 20 volume of central spindle and quality, and meet central spindle
The demand of 20 high-speed rotations.
Velocity sensor 70 loosens in order to prevent, it is preferable that mounting base offers mounting groove, and mounting groove inner wall is fixed with anti-
Sliding glue-line increases the friction with velocity sensor 70 by glue-line, and improves the stability of the installation of velocity sensor 70.
Further, body 10 offers the first inlet channel 80, is formed between air-bearing component 30 and central spindle 20
Second inlet channel；Damping plug 90 is provided on air-bearing component 30；First inlet channel 80 passes through the aperture of damping plug 90
It is connected to the second inlet channel；As shown in Figure 1 (in Fig. 1 straight arrows direction be high pressure gas flow direction), by toward into
Gas channel is passed through high pressure gas, and high pressure gas enters the second inlet channel by the aperture on damping plug 90, in central spindle 20 and air-bearing shafts
One layer of high pressure air film is formed between bearing assembly 30, supports the contactless suspension of central spindle 20, and ensures that central spindle 20 has certain carrying
Ability and rigidity.
Specifically, upper air-bearing 31 and lower air-bearing shafts of the air-bearing component 30 including about 20 two sides of central spindle that are placed in
Hold 32；Upper air-bearing 31 includes the upper inner sleeve 311 being set in outside central spindle 20 and the upper housing 312 being set in outside inner sleeve 311,
The first sealing ring 313 is provided between upper inner sleeve 311 and upper housing 312, at this point, the first sealing ring 313 respectively with upper housing 312
With the closed fitting of upper housing 312, and the elasticity tension of the first sealing ring 313 realized between upper housing 312 and upper housing 312 branch
Support；Lower air-bearing 32 includes the lower inner sleeve 321 being set in outside central spindle 20 and the lower housing 322 being set in outside lower inner sleeve 321, under
The second sealing ring 323 is provided between inner sleeve 321 and lower housing 322, at this point, the second sealing ring 323 respectively with lower 322 He of housing
The closed fitting of lower housing 322, and the elasticity tension of the second sealing ring 323 realizes branch between lower housing 322 and lower housing 322
Support；In this way, the first sealing ring 313 and the second sealing ring 323 play the role of vibration damping, it is ensured that this air-flotation electric spindle is put down at high speeds
Steady operating.
More specifically, body 10 offers feed pathway 11 and liquid outlet channel 12；Lower housing 322 offers and feed pathway
First cooling duct 100 of 11 connections；Lower inner sleeve 321 offers the second cooling duct being connected to the first cooling duct 100
110；Upper inner sleeve 311 offers the third cooling duct 120 being connected to the second cooling duct 110；Upper housing 312 offers and the
4th cooling duct 130 of three cooling ducts 120 connection；4th cooling duct 130 is connected to liquid outlet channel 12；In this way, such as Fig. 3
Shown (straight arrows direction is coolant flow direction in Fig. 3), by passing through coolant toward feed pathway 11: such as water
Deng；It is cooling logical that coolant successively passes through the first cooling duct 100, the second cooling duct 110, third cooling duct 120 and the 4th
Road 130 is discharged from liquid outlet channel 12 later, and in the above process, coolant liquid is repeatedly recycled in the inside of this air-flotation electric spindle, can band
Heat as much as possible is walked, excessive to avoid heat production when running at high speed, heat cannot be discharged in time, cause this air-flotation electric spindle quilt
It destroys.
Wherein, first cooling duct 100, the second cooling duct 110, third cooling duct 120 and the 4th cooling duct
130 along the circumferentially extending of central spindle 20, realizes comprehensively cooling.
In implementing production, every first cooling duct 100, the second cooling duct 110, third cooling duct 120 and the
Four cooling ducts 130 are one group of cooling unit；First cooling duct 100 of every group of cooling unit has water inlet, and the 4th is cooling
Channel 130 has water outlet；Settable two groups of cooling units in this air-flotation electric spindle, in this way, forming double-inlet and double water outlets
Mouthful, accelerate cooling efficiency.
Further, tool-broaching mechanism 60 includes cylinder 61, pull rod 62, disc spring 63 and collet 64；Pull rod 62 is actively located in
In central spindle 20；Disc spring 63 is for providing the elastic stress for promoting pull rod 62 to move upwards；Cylinder 61 is for pushing downwards pull rod 62；
Collet 64 and pull rod 62 are sequentially connected；In use, when cylinder 61 pushes pull rod 62 downwards, the linkage collet 64 of pull rod 62, collet
64 open, and realize loose knife；Exhaust hood 61 discharge pull rod 62, disc spring 63 promotes pull rod 62 to move upwards, and pull rod 62 links collet
64, it is closed under the limitation of the central spindle 20 of collet 64, realizes broaching tool；Above-mentioned principle process can directly know by the prior art, this
Place is no longer repeated；And in the present embodiment, the cylinder body of cylinder 61 is embedded with diaphragm 180, and diaphragm 180 has high absorbing
Can, the body vibration of this air-flotation electric spindle is effectively reduced, the stability of this air-flotation electric spindle is increased.
In the present embodiment, wearing piece 150 is provided between the piston of cylinder 61 and the cylinder body of cylinder 61, wearing piece 150 is adopted
It is made of wear-resistant material.In this way, avoiding third sealing ring 140 from wearing while ensuring sealing performance；It needs to illustrate herein
It is that above-mentioned wear-resistant material can be tetrafluoroethene, POM, silicon carbide etc..
Specifically, cylinder 61 is fixed with guide sleeve 170, and pull rod 62 is actively located in guide sleeve 170；In this way, realization pair
The guiding role of pull rod 62 improves running stability；Furthermore the guide sleeve 170 also can be used wear-resistant material and be made, made with extending
Use the service life.
Above-mentioned tool-broaching mechanism 60 further includes axis despot, and axis despot is arranged in central spindle 20 and is fixed on pull rod 62, elasticity member
Part acts on axis despot, and the structure of inner sleeve and housing cooperation can be used in axis despot, and housing is made of wear-resistant material, housing and interior
Increase oil storage tank between set；In this way, without gap installation between housing and central spindle 20, and then axis despot is avoided to shake；Furthermore
Housing and inner sleeve use gluing, guarantee to be firmly combined between inner and outer sleeves.
Further, the bottom end of body 10 is fixed with cover board 190, and the 4th sealing is provided between cover board 190 and body 10
Circle 200 is sealed between cover board 190 and body 10 using the 4th sealing ring 200, greatly prevent external dust, water, mist into
Enter inside main shaft, greatly protect this air-flotation electric spindle internal structure, extends the service life of main shaft.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of air-flotation electric spindle, it is characterised in that: including
Body；
Central spindle；The central spindle is arranged in the body；
Air-bearing component；In the air-bearing component installation and the body, and central spindle described in support；
Rotor；The rotor includes the cage grooves being provided in the central spindle and the copper for being embedded in the cage grooves；
Stator；The stator includes iron core, low speed winding and high speed winding；The iron core is arranged in the body, and with institute
State rotor matching；The low speed winding and the high speed winding are separately mounted on the iron core；
Tool-broaching mechanism；The tool-broaching mechanism is connected with central spindle transmission.
2. air-flotation electric spindle as described in claim 1, it is characterised in that: the air-flotation electric spindle further includes velocity package, institute
It states velocity package to include velocity sensor, mounting base and at least two test the speed hole, at least two test the speed hole around the central spindle
Circumferentially it is sequentially arranged at intervals；The mounting base is mounted on the air-bearing component；The velocity sensor is mounted on described
In mounting base and for incuding the hole of testing the speed.
3. air-flotation electric spindle as claimed in claim 2, it is characterised in that: the mounting base offers mounting groove, the installation
Slot inner wall is fixed with anti-skidding glue-line.
4. air-flotation electric spindle as described in claim 1, it is characterised in that: the body offers the first inlet channel, described
The second inlet channel is formed between air-bearing component and the central spindle；Damping plug is provided on the air-bearing component；
First inlet channel is connected to by the aperture of the damping plug with the second inlet channel.
5. air-flotation electric spindle as described in claim 1, it is characterised in that: the air-bearing component includes the axis that is placed in
The upper air-bearing and lower air-bearing of two sides above and below core；The upper air-bearing includes the upper inner sleeve being set in outside the central spindle
With the upper housing being set in outside the upper inner sleeve, the first sealing ring is provided between the upper inner sleeve and the upper housing；It is described
Lower air-bearing includes the lower inner sleeve being set in outside the central spindle and the lower housing that is set in outside the lower inner sleeve, the lower inner sleeve
The second sealing ring is provided between the lower housing.
6. air-flotation electric spindle as claimed in claim 5, it is characterised in that: the body offers feed pathway and liquid is logical out
Road；The lower housing offers the first cooling duct being connected to the feed pathway；The lower inner sleeve offers and described
Second cooling duct of one cooling duct connection；It is cooling that the upper inner sleeve offers the third being connected to second cooling duct
Channel；The upper housing offers the 4th cooling duct being connected to the third cooling duct；4th cooling duct with
The liquid outlet channel connection.
7. air-flotation electric spindle as claimed in claim 6, it is characterised in that: first cooling duct, the second cooling duct,
Three cooling ducts and the 4th cooling logical circumferentially extending along the central spindle.
8. air-flotation electric spindle as described in claim 1, it is characterised in that: the tool-broaching mechanism include cylinder, pull rod, disc spring and
Collet；The pull rod is actively located in the central spindle；The disc spring is for providing the elasticity for promoting the pull rod to move upwards
Stress；The cylinder is for pushing downwards the pull rod, and the cylinder body of the cylinder is embedded with diaphragm；The collet and the drawing
Bar transmission connection.
9. air-flotation electric spindle as claimed in claim 8, it is characterised in that: the piston jacket of the cylinder is sealed equipped with third
Circle, is provided with wearing piece, the wearing piece is made of wear-resistant material between the third sealing ring and the cylinder body of the cylinder.
10. air-flotation electric spindle as claimed in claim 8, it is characterised in that: the cylinder is fixed with guide sleeve, and the pull rod is living
It is dynamic to be arranged in the guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324506.2A CN109365837A (en) | 2018-11-08 | 2018-11-08 | A kind of air-flotation electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324506.2A CN109365837A (en) | 2018-11-08 | 2018-11-08 | A kind of air-flotation electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109365837A true CN109365837A (en) | 2019-02-22 |
Family
ID=65383718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811324506.2A Pending CN109365837A (en) | 2018-11-08 | 2018-11-08 | A kind of air-flotation electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109365837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734302A (en) * | 2022-05-20 | 2022-07-12 | 江西创特智能科技有限公司 | Fastening detection equipment of intelligent metal cutting machine tool |
-
2018
- 2018-11-08 CN CN201811324506.2A patent/CN109365837A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734302A (en) * | 2022-05-20 | 2022-07-12 | 江西创特智能科技有限公司 | Fastening detection equipment of intelligent metal cutting machine tool |
| CN114734302B (en) * | 2022-05-20 | 2022-12-13 | 江西创特智能科技有限公司 | Fastening detection equipment of intelligent metal cutting machine tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103286678B (en) | A kind of Multifunction internal formula dynamic/static piezoelectric main shaft for efficient high-speed precision machine tool | |
| CN209379931U (en) | A kind of air-flotation electric spindle | |
| CN108050157A (en) | A kind of magnetic liquid dual suspension supports Disjunction type cone bearing | |
| CN110369736B (en) | High-speed air-floatation motorized spindle | |
| CN102489726A (en) | Air-floated high-speed motorized spindle | |
| KR20160054010A (en) | Fluid powered spindle | |
| CN107598193B (en) | Air-float electric main shaft | |
| CN113894300B (en) | Porous and micropore combined throttling gas static pressure turning electric spindle | |
| US10177622B2 (en) | Steering motor | |
| CN101571161B (en) | Magnetic sliding bearing | |
| CN210848347U (en) | High-speed air-floatation motorized spindle | |
| CN112879420B (en) | Ceramic bearing | |
| CN108071665A (en) | spiral groove type radial gas dynamic pressure foil bearing | |
| CN109365837A (en) | A kind of air-flotation electric spindle | |
| CN108050158B (en) | Magnetic-liquid double-suspension supporting conical bearing | |
| CN102207418A (en) | Integrated test stand of high-speed high-pressure air seal for rotating shaft | |
| CN108188417B (en) | Multiple throttling type static pressure air floatation motorized spindle and application method thereof | |
| CN203304574U (en) | Multifunctional built-in dynamic and static pressure electric spindle for efficient high-speed precision machine tool | |
| CN105436530B (en) | Air-float high-speed milling highlight two-in-one electric spindle | |
| CN112849383A (en) | Sealed rim propeller or generator | |
| CN107877370B (en) | Double-end main shaft | |
| CN206221505U (en) | High-speed magnetic levitation bearing pneumatic main shaft | |
| CN207251362U (en) | Air supporting generator and motor | |
| WO2022183592A1 (en) | Air bearing spindle and drilling rig | |
| CN205937000U (en) | Aerogenerator magnetic coupling bearing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |