CN105436530B - Air-float high-speed milling highlight two-in-one electric spindle - Google Patents
Air-float high-speed milling highlight two-in-one electric spindle Download PDFInfo
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- CN105436530B CN105436530B CN201610003137.1A CN201610003137A CN105436530B CN 105436530 B CN105436530 B CN 105436530B CN 201610003137 A CN201610003137 A CN 201610003137A CN 105436530 B CN105436530 B CN 105436530B
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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
- 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
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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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
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- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an air-flotation high-speed milling highlight two-in-one electric spindle, which comprises a push rod, a rotor component, a stator component, a main body, a rear thrust bearing, a front thrust bearing, a water/gas circuit component, a cylinder component, a gap ring, a thrust bearing and a protective cover which are coaxially arranged, wherein the water/gas circuit component is communicated with the inside of the main body through a circulating gas circuit via the rear thrust bearing, the side wall of the main body, the front thrust bearing, the gap ring, the thrust bearing and the protective cover to form an air suspension space, the water/gas circuit component forms a circulating water cooling structure through a cooling circulating water circuit via the rear thrust bearing, the side wall of the main body, the gap ring of the front thrust bearing, the thrust bearing and the protective cover, sealing rings are respectively arranged at the joints between the components in the circulating gas circuit and the cooling, the multi-processing performances of milling, highlight and the like can be realized, the stability of the long-time working performance of the main shaft is ensured, and the service life is long.
Description
Technical field
It is espespecially a kind of compact-sized reasonable the present invention relates to the technical field of electro spindle, service life length, radiating effect
Good, easy for installation air supporting high-speed milling bloom two-in-one electric main shaft.
Background technology
With electric drive technology (variable-frequency control technique, motor vector control technology etc.) develop rapidly and it is increasingly complete
Kind, the mechanical structure of High Speed NC Machine Tools main transmission is greatly simplified, substantially eliminates belt wheel transmission and tooth
Wheel transmission.Machine tool chief axis is directly driven by built-in motor, so as to be zero the contraction in length of Machine Tool Main Drive chain, is realized
" Zero-drive Chain " of lathe.The drive mechanism form of this spindle drive motor and machine tool chief axis " being combined into one ", make spindle unit from
It is relatively independent in the transmission system and overall structure of lathe to come out, therefore " main axle unit " can be made, it is commonly called as " electro spindle "
(ElectricSpindle,Motor Spindle).Because current electro spindle is mainly using ac high frequency motor, therefore
Referred to as " Fast frequency spindle " (High FrequencySpindle).Due to not having intermediate transmission link, sometimes referred to as it is " directly
Transmission main shaft " (Direct Drive Spindle).
Electro spindle is a set of component, and it includes electro spindle in itself and its annex：Main axle unit, high frequency converter plant, mist of oil
Lubricating coupler, cooling device, built-in encoder, tool changing device etc..The rotor of motor is directly as the main shaft of lathe, main axle unit
Housing be exactly motor bed-plate, and coordinate other parts, realize that motor is integrated with machine tool chief axis, main shaft then by
Front and back bearings support；The speed change of main shaft is controlled by main shaft drives module, and the temperature rise in main axle unit is limited by cooling device.
The rear end of main shaft equipped with test the speed, angle measurement displacement transducer, the internal taper hole of front end and end face are used to install cutter.
With the electronic product such as in the market mobile phone, MP4, PAD, surface smoothness to shell chamfering/deburring and clearly
Profile requirements more and more higher, and higher requirement it is also proposed to the processing efficiency of product, and determine extremely closing for above-mentioned requirements
Important several principal elements are respectively：First, the rotating speed and vibration performance of electro spindle；2nd, the power of electro spindle；3rd, electro spindle
Side loading（I.e. lateral milling ability）And stability.
At present, the high Light Electrical main shaft in industry, the requirement of above-mentioned factor one can be met, but in above-mentioned factor two, three
Performance on be average in performance, therefore, according to the requirement of Vehicles Collected from Market trend, pole needs to raise the power of electronoptical main axis and lateral negative
Carry.
The content of the invention
A kind of air supporting high-speed milling bloom two is provided it is an object of the invention to overcome weak point of the prior art
Unify electro spindle, the electric main shaft structure compact and reasonable, improve the side milling ability of electro spindle, milling, bloom etc. can be achieved
Multiple processing characteristics, it ensure that main shaft in the stability of performance that works long hours, service life length, good heat dissipation effect, installation side
Just.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of air supporting high-speed milling bloom two-in-one electric main shaft, including be coaxially disposed push rod, rotor assembly, stator pack
Part, main body, rear thrust bearing, preceding thrust bearing, water/gas road component, cylinder assembly, spacer ring, thrust bearing and protective cover, institute
State water/gas road component and pass through circulation gas circuit thrust bearing, the side wall of main body, preceding thrust bearing, spacer ring, thrust bearing after
And protective cover, it is connected with body interior, forms a gas suspension space, the gas suspension space suspends be in rotor assembly
State, water/gas road component pass through a cooling circulating water Lu Jinghou thrust bearings, the side wall of main body, preceding thrust bearing, gap
Ring, thrust bearing and protective cover, form a recirculated water cooling structure, and the recirculated water cooling structure is reducing the work temperature of electro spindle
Degree, the junction between each part in the circulation gas circuit and cooling circulating water road is respectively provided with sealing ring.
The rotor assembly includes the axle despot located at push rod one end, the edge bar being connected by a connection piece with axle despot, led to
A chuck is crossed with inlaying the rotor matrix and the shell fragment between rotor matrix and connector that bar is connected, the rotor matrix table
Face is recessed a cell body, and magnetic force piece is provided with the cell body, and the rotor matrix one end extends to form flying disc to outer ring, the rotor
Rotor fixed cover is provided between matrix and rear thrust bearing, the preceding thrust bearing and thrust bearing are respectively arranged on the flying disc two
End.
The stator module is by the stator base that is set on rotor assembly and is located at stator by an insulation board respectively
The winding section composition at matrix both ends.
The main body is set on stator module, and the main body wall is provided with some main body gas circuits and main body water route, respectively should
Main body gas circuit is connected with body interior in being radially provided with elongated hole, each elongated hole in main body, it is described after thrust bearing and it is preceding only
Thrust bearing is respectively arranged on the both ends between main body and rotor assembly, and the rear thrust bearing and preceding thrust bearing correspond to main body wall
A wherein main body gas circuit and the set location in main body water route are respectively equipped with gas intercommunicating pore and water intercommunicating pore, and the thrust bearing passes through
Spacer ring is connected with preceding thrust bearing, and gas intercommunicating pore is corresponded on the spacer ring and water intercommunicating pore is respectively equipped with gas connecting hole and water
Connecting hole, the thrust bearing are provided with annular gas channel and annular water channel, and the annular gas channel and annular water channel pass through protective cover respectively
Form only each main body gas circuit of corresponding connection and the semi-closed structure in each main body water route, the annular gas channel and be provided with some thrust gas
Mouth, respectively the thrust valve be connected with body interior, water/gas road component after push rod is set on thrust bearing, the water/
Air inlet, exhaust outlet, inlet and liquid outlet are respectively equipped with gas circuit component, the air inlet and gas intercommunicating pore, each main body gas circuit,
Elongated hole, gas connecting hole, annular gas channel and exhaust outlet, collectively form and follow air water road, the inlet and water intercommunicating pore, each main body
Water route, water connecting hole, annular water channel and liquid outlet, collectively form cooling circulating water road.
Thrust bearing section is in T shape after described, and the rear thrust bearing outer surface is formed by the flat position of radial direction gas circuit after one
Annular connectivity slot after at least two, the rear thrust bearing inwall correspond to each rear annular connectivity slot and are circumferentially with rear annular groove, respectively the rear ring
Shape connectivity slot is connected with corresponding rear annular groove respectively by some rear thrust valves.
The preceding thrust bearing section is in T shape, and the preceding thrust bearing outer surface is formed by the flat position of radial direction gas circuit before one
Annular connectivity slot before at least two, the preceding thrust bearing inwall correspond to each preceding annular connectivity slot and are circumferentially with preceding annular groove, respectively the front ring
Shape connectivity slot is connected with corresponding preceding annular groove respectively by some preceding thrust valves, close to preceding thrust bearing and spacer ring phase
Connect and be also axially arranged with axial valve respectively on each preceding thrust valve of one end, respectively the axial valve is connected with body interior.
Water/gas road component is connected centrally through a mold insert with push rod, and the water/gas road component one end is provided with air chamber,
The air chamber is connected by a conductive channel with cylinder assembly, is opened in the middle part of air chamber bottom surface and is formed with type groove, is provided with back in the type groove
Position spring, the return spring one end contacts is provided with installation die cavity, the peace with cylinder assembly bottom surface, the water/gas road component other end
Dress die cavity is connected to thrust bearing after setting, the installation die cavity with air inlet.
The cylinder assembly is sheathed on push rod and is connected in water/gas road component, and the push rod is provided with limiting section, the gas
At least interlayer board of the cylinder component including laminated structure, the bonnet on the interlayer board of top, it is respectively arranged on bonnet and interlayer board bottom
The power plate in face and the gasket ring between power plate is corresponded to located at interlayer board and top respectively, respectively the interlayer board bottom surface is respectively equipped with
Groove, plate stomata is respectively axially arranged with the interlayer board side wall respectively, each plate stomata is connected, respectively plate stomata difference radial skew
Provided with radial hole, respectively the radial hole is connected with corresponding groove, the power plate of the cylinder assembly bottom surface and spacing, water/gas road
Component is connected, between each power plate and gasket ring, between each power plate and interlayer board and bottom surface power plate and limiting section, water/
The junction of gas circuit component is respectively equipped with sealing ring.
Beneficial effects of the present invention are as follows：
1st, Successful utilization of the present invention 1.5KW rotor drive motor, the main shaft compared to equivalent specifications size in the industry carries
High 2 times of power, it is possible to achieve the multiple processing characteristics such as milling, bloom, solve under equal processing conditions, high photoelectricity master
Axle can not carry out the shortcomings that larger feeding milling；
2nd, aerostatic bearing of the invention, air inlet and rear thrust bearing and the preceding thrust shaft of water/gas road component are passed through
The gas intercommunicating pore that holds, each main body gas circuit of main body, elongated hole, the gas connecting hole of spacer ring, thrust bearing annular gas channel and
The exhaust outlet of water/gas road component is connected, and collectively forms circulation gas circuit, and by each elongated hole, is connected with body interior, shape
Into gas suspension space, side loads annular gas tank is not only increased, also increases bearing rigidity static pressure surface area, institute is increased just
Property static pressure surface area, it is 1.6 times of equivalent specifications size main shaft, through actual test, radial load can reach more than 15kgf, greatly
The side milling ability for improving electro spindle of width；
3rd, the water intercommunicating pore of the inlet of water/gas road of the present invention component and rear thrust bearing and preceding thrust bearing, main body it
Each main body water route, the water connecting hole of spacer ring, the liquid outlet of the annular water channel of thrust bearing and water/gas road component are connected,
Cooling circulating water road is collectively formed, so as to ensure that main shaft in the stability of performance that works long hours；
4th, the present invention is compact-sized rationally, and service life length, good heat dissipation effect is easy for installation, is easy to be extended and applied.
Brief description of the drawings
Fig. 1 is the full sectional view of the present invention.
The cross-sectional view of thrust bearing before Fig. 2 is the present invention.
Fig. 3 is the cross-sectional view of the water/gas road component of the present invention.
Fig. 4 is the side view of the water/gas road component of the present invention.
Fig. 5 is the gas circuit cross-sectional view of the main body of the present invention.
Fig. 6 is the water route cross-sectional view of the main body of the present invention.
Fig. 7 is the cross-sectional view of the stator module of the present invention.
Fig. 8 is the cross-sectional view of the rotor assembly of the present invention.
Fig. 9 is the cross-sectional view of the cylinder assembly of the present invention.
Figure 10 is the cross-sectional view of the electro spindle front end of the present invention.
Drawing reference numeral explanation：
1- push rods；11- limiting sections；
2- rotor assembly；21- axles are seized by force；22- connectors；23- inlays bar；24- chucks；25- rotor matrix；26- shell fragments；27-
Magnetic force piece；28- flying discs；29- rotor fixed covers；
3- stator modules；31- stator bases；32- insulation boards；33- winding sections；
4- main bodys；41- main body gas circuits；42- main bodys water route；43- elongated holes；
Thrust bearing after 5-；
Thrust bearing before 6-；The flat position of radial direction gas circuit before 61-；Annular connectivity slot before 62-；Annular groove before 63-；Thrust gas before 64-
Mouth；65- axial directions valve；
7- water/gas road component；71- mold inserts；72- air chambers；73- conductive channels；74- type grooves；75- return springs；76- is installed
Die cavity；7a- air inlets；7b- exhaust outlets；7c- inlets；7d- liquid outlets；
8- cylinder assemblies；81- interlayer boards；811- grooves；812- plate stomatas；813- radial holes；82- bonnets；83- power
Plate；84- gasket rings；
9- thrust bearings；91- annular gas channels；911- thrust valves；92- annular water channels；
K- spacer rings；S- protective covers；P- gas intercommunicating pores；Q- gas connecting holes；M- attaching nut；R- blocks screw.
Embodiment
Below in conjunction with Figure of description, the invention will be further described：
As Figure 1-10 shows, the present invention is on a kind of air supporting high-speed milling bloom two-in-one electric main shaft, including is coaxially disposed
Push rod 1, rotor assembly 2, stator module 3, main body 4, rear thrust bearing 5, preceding thrust bearing 6, water/gas road component 7, air cylinder group
Part 8, spacer ring K, thrust bearing 9 and protective cover S, water/gas road component 7 pass through circulation gas circuit thrust bearing 5, main body 4 after
Side wall, preceding thrust bearing 6, spacer ring K, thrust bearing 9 and protective cover S, with being connected inside main body 4, formed a gas suspension
Space, to make rotor assembly 2 be in suspended state, water/gas road component 7 passes through a cooling circulating water in the gas suspension space
Lu Jinghou thrust bearings 5, the side wall of main body 4, preceding thrust bearing 6, spacer ring K, thrust bearing 9 and protective cover S, form a circulation
Water-cooling structure, the recirculated water cooling structure is to reduce the operating temperature of electro spindle, in the circulation gas circuit and cooling circulating water road
Each part between junction be respectively provided with sealing ring.
As shown in Fig. 1,8, rotor assembly 2 includes the axle despot 21 located at the one end of push rod 1, by a connection piece 22 and axle despot 21
The edge bar 23 that is connected, the rotor matrix 25 being connected by a chuck 24 with edge bar 23 and located at rotor matrix 25 and it is connected
Shell fragment 26 between part 22, the concave surface of rotor matrix 25 form a cell body, magnetic force piece 27, the rotor base are provided with the cell body
The one end of body 25 extends to form flying disc 28 to outer ring, and rotor fixed cover 29 is provided between rotor matrix 25 and rear thrust bearing 5, preceding
Thrust bearing 6 and thrust bearing 9 are respectively arranged on the both ends of flying disc 28.
As shown in Fig. 1,7, stator module 3 is by the stator base 31 that is set on rotor assembly 2 and exhausted by one respectively
Listrium 32 forms located at the winding section 33 at the both ends of stator base 31.
As Figure 1-10 shows, main body 4 is set on stator module 3, and the side wall of main body 4 is provided with some Hes of main body gas circuit 41
Main body water route 42, respectively the main body gas circuit 41 is in being radially provided with elongated hole 43 in main body 4, and each elongated hole 43 inside main body 4 with being connected
Logical, the rear thrust bearing 5 and preceding thrust bearing 6 are respectively arranged on the both ends between main body 4 and rotor assembly 2, the rear thrust shaft
Hold 5 and preceding thrust bearing 6 corresponds to a wherein main body gas circuit 41 for the side wall of main body 4 and the set location in main body water route 42 is respectively equipped with
Gas intercommunicating pore P and water intercommunicating pore, the thrust bearing 9 are connected by spacer ring K with preceding thrust bearing 6, spacer ring K Shang couple
Should gas intercommunicating pore P and water intercommunicating pore be respectively equipped with gas connecting hole Q and water connecting hole, the thrust bearing 9 is provided with annular gas channel 91
With annular water channel 92, the annular gas channel 91 connects each main body gas by the way that protective cover S formation one is only corresponding respectively with annular water channel 92
Road 41 and the semi-closed structure in each main body water route 42, the annular gas channel 91 are provided with some thrust valves 911, respectively the thrust valve
911 inside main body 4 with being connected, and water/gas road component 7 is after push rod 1 is set on thrust bearing 5, the water/gas road component
Air inlet 7a, exhaust outlet 7b, inlet 7c and liquid outlet 7d, air inlet 7a and gas intercommunicating pore P, each main body are respectively equipped with 7
Gas circuit 41, elongated hole 43, gas connecting hole Q, annular gas channel 91 and exhaust outlet 7b are connected, and collectively form circulation gas circuit, and lead to
Each elongated hole 43 is crossed, with being connected inside main body 4, forms gas suspension space, inlet 7c and water intercommunicating pore, each main body water route
42nd, water connecting hole, annular water channel 92 and liquid outlet 7d are connected, and collectively form cooling circulating water road.
As shown in figure 1, the rear section of thrust bearing 5 is in T shape, the rear outer surface of thrust bearing 5 passes through radial direction gas circuit after one
Annular connectivity slot after flat position forms at least two, the rear inwall of thrust bearing 5 correspond to each rear annular connectivity slot and are circumferentially with rear annular groove,
Respectively the rear annular connectivity slot is connected with corresponding rear annular groove respectively by some rear thrust valves.
As shown in Fig. 1,2,10, the preceding section of thrust bearing 6 is in T shape, the preceding outer surface of thrust bearing 6 by before one radially
Annular connectivity slot 62 before the flat position 61 of gas circuit forms at least two, it is circumferential that the preceding inwall of thrust bearing 6 corresponds to each preceding annular connectivity slot 62
Provided with preceding annular groove 63, respectively the preceding annular connectivity slot 62 is connected with corresponding preceding annular groove 63 respectively by some preceding thrust valves 64
It is logical, axial gas is also axially arranged with respectively on each preceding thrust valve 64 for being connected one end with spacer ring K close to preceding thrust bearing 6
Mouth 65, respectively the axial valve 65 inside main body 4 with being connected.
As shown in Figure 1,3, water/gas road component 7 is connected centrally through a mold insert 71 with push rod 1, the water/gas road component 7
One end is provided with air chamber 72, and the air chamber 72 is connected by a conductive channel 73 with cylinder assembly 8, and system is opened in the middle part of the bottom surface of air chamber 72
There is type groove 74, return spring 75 is provided with the type groove 74, the one end of return spring 75 contacts and the bottom surface of cylinder assembly 8, the water/gas
The other end of road component 7 is provided with installation die cavity 76, and the installation die cavity 76 is to thrust bearing 5 after setting, and the installation die cavity 76 is with entering
Gas port 7a is connected.
As shown in Fig. 1,9, cylinder assembly 8 is sheathed on push rod 1 and is connected in water/gas road component 7, is set on the push rod 1
Limited location portion 11, at least interlayer board 81 of the cylinder assembly 8 including laminated structure, the bonnet 82 on top interlayer board 81,
It is respectively arranged on the power plate 83 of bonnet 82 and the bottom surface of interlayer board 81 and corresponds to power plate 83 located at interlayer board 81 and top respectively
Between gasket ring 84, respectively the bottom surface of interlayer board 81 be respectively equipped with groove 811, be respectively axially arranged with plate respectively in the side wall of interlayer board 81
Stomata 812, each plate stomata 812 are connected, and each plate stomata 812 is connected with the conductive channel 73 of water/gas road component 7, respectively should
Plate stomata 812 distinguishes radial skew and is provided with radial hole 813, and respectively the radial hole 813 is connected with corresponding groove 811, the cylinder
The power plate 83 of the bottom surface of component 8 is connected with spacing, water/gas road component 7, between each power plate 83 and gasket ring 84, each power plate
Between 83 and interlayer board 81 and bottom surface power plate 83 is respectively equipped with sealing with limiting section 11, the junction of water/gas road component 7
Circle, the cylinder assembly 8 are fixed on the limiting section 11 of push rod 1 by attaching nut M.
As shown in Fig. 1,10, for circulating gas circuit, when in use, air inlet 7a of the gas by water/gas road component 7 is lubricated
The gas intercommunicating pore P of thrust bearing 5 after, into the main body gas circuit 41 of main body 4, then by preceding thrust bearing 6 gas intercommunicating pore P and
Spacer ring K gas connecting hole Q, the annular gas channel 91 for thrust bearing 9 of entering, then from annular gas channel 91 to other each main body gas circuits 41
Conveying lubrication gas, and be charged into from each thrust nozzle of circulation gas circuit inside main body 4, the master being most connected backward with exhaust outlet 7b
Body gas circuit 41 conveys, and is exported from exhaust outlet 7b, and in gas course of conveying is lubricated, partial lubrication gas also can be through each main body gas
Elongated hole 43 on road 41 enters inside main body 4, and this portion gas passes through after each on annular connectivity slot after back pressure bearing 9
The rotor base of each preceding thrust valve 64 before thrust valve and forward thrust bearing 9 on annular connectivity slot 62 to rotor assembly 2
Body 25 is blown, and then in the gas suspension space of 4 Inner Constitution of main body one, rotor assembly 2 is suspended in lubrication gas, improved fortune
Turn precision and borehole accuracy；Thrust bearing 9, thrust clearance ring K and preceding thrust bearing 6 are fixed on by main body by a fastening screw
On 4, and then strengthen the rigidity and stability of electro spindle；When electro spindle runs at high speed, rotor assembly 2 can be accurately suspended in
In static pressure space inside high-speed electric main shaft, running accuracy is improved, compared with the long arm of force of rear thrust bearing 5, preceding thrust shaft
The short arm of force for holding 6 serves good front end stability, ensure that to the surface smoothness of 4 chamferings of main body/deburring and clearly
The precision of profile requirements processing.
As shown in Fig. 1,10, for cooling circulating water road, in use, inlet 7c of the coolant by water/gas road component 7
The water intercommunicating pore of thrust bearing 5 after, into the main body water route 42 of main body 4, then by preceding thrust bearing 6 water intercommunicating pore and
Gap ring K water connecting hole, the annular water channel 92 for thrust bearing 9 of entering, then it is defeated from annular water channel 92 to other each main body water routes 42
Coolant is sent, finally flows through the main body water route 42 being connected with liquid outlet 7d, and is exported from liquid outlet 7d, forms recirculated water cold junction
Structure, coolant circulation take a round, be electro spindle during running at high speed, preferable cooling effect is obtained, in thrust bearing 9
Set on circulation waterway and block screw R, can effectively placed coolant and leak, strengthen the rigidity and stability of electro spindle, Jin Erbao
Turn qualitative and machining accuracy that electro spindle runs at high speed is demonstrate,proved.
During work, certain pressure air is accessed from water/gas road component 7, respectively for rear thrust bearing 5, preceding thrust bearing 6
And thrust bearing 9, rotor assembly 2 is completely in suspended state, during rotation, will not be contacted with any accessory, to stator pack
Part 3 provides satisfactory three-phase alternating-current supply, the magnetic force piece 27 on the relative rotor component 2 of stator module 3 is produced asynchronous magnetic
Field force, under the action of a magnetic force, rotor assembly 2 progressively accelerate to working speed, first when needing to change different size cutter
First stop driving equipment, after main shaft is out of service, in the air of cylinder head access certain pressure, push rod 1 promotes edge bar 23
After moving down, chuck 24 opens, and can carry out changing to operation, after holding one's breath, cylinder return spring 75 retreats push rod 1, top surface before push rod 1
There is certain gap with edge bar 23, make the inner shell fragment 26 of rotor assembly 2 clamp-on tool again, when 2 high-speed rotation of rotor assembly,
Its main pyrotoxin includes motor loss heating and rotor and heat caused by windage, in order to ensure that electro spindle can be steady
Fixed, reliable work, access coolant from water/gas road component 7 and flow to main body water route 42, preceding thrust bearing 6, rear thrust bearing 5
Circulation discharge heat is carried out with thrust bearing 9, if being controlled on automated machine tool, is driven with 1.5KW rotor
Motor is engaged, and can be carried out high speed, efficiently be processed operation, temperature sensor is housed in main shaft, can be carried out corresponding feedback and be protected
Shield.
Successful utilization of the present invention 1.5KW rotor drive motor, the main shaft compared to equivalent specifications size in the industry improve
2 times of power, it is possible to achieve the multiple processing characteristics such as milling, bloom, solve under equal processing conditions, high electronoptical main axis
The shortcomings that larger feeding milling can not be carried out.
Described above is only to presently preferred embodiments of the present invention, and not the scope of the present invention is defined, therefore is not being taken off
On the premise of design spirit of the present invention, this area ordinary skill technical staff is to construction, feature and principle of the present invention
The equivalence changes or decoration made, all should fall into the protection domain of the present patent application patent.
Claims (7)
1. a kind of air supporting high-speed milling bloom two-in-one electric main shaft, including be coaxially disposed push rod, rotor assembly, stator module,
Main body, rear thrust bearing, preceding thrust bearing, water/gas road component, cylinder assembly, spacer ring, thrust bearing and protective cover, it is special
Sign is：Water/gas road component passes through circulation gas circuit thrust bearing, the side wall of main body, preceding thrust bearing, gap after
Ring, thrust bearing and protective cover, are connected with body interior, form a gas suspension space, and the gas suspension space is making rotor
Component is in suspended state, and water/gas road component passes through a cooling circulating water Lu Jinghou thrust bearings, the side wall, preceding of main body
Thrust bearing, spacer ring, thrust bearing and protective cover, form a recirculated water cooling structure, and the recirculated water cooling structure is reducing electricity
The operating temperature of main shaft, the junction between each part in the circulation gas circuit and cooling circulating water road are respectively provided with sealing
Circle；
The main body is set on stator module, and the main body wall is provided with some main body gas circuits and main body water route, respectively the main body
Gas circuit is connected with body interior in being radially provided with elongated hole, each elongated hole in main body, it is described after thrust bearing and preceding thrust shaft
The both ends being respectively arranged between main body and rotor assembly are held, the rear thrust bearing and preceding thrust bearing correspond to main body wall wherein
One main body gas circuit and the set location in main body water route are respectively equipped with gas intercommunicating pore and water intercommunicating pore, and the thrust bearing passes through gap
Ring is connected with preceding thrust bearing, gas intercommunicating pore is corresponded on the spacer ring is respectively equipped with gas connecting hole with water intercommunicating pore and connected with water
Hole, the thrust bearing are provided with annular gas channel and annular water channel, and the annular gas channel and annular water channel are formed by protective cover respectively
One only each main body gas circuit of corresponding connection and the semi-closed structure in each main body water route, the annular gas channel is provided with some thrust valves,
Respectively the thrust valve is connected with body interior, and water/gas road component is after push rod is set on thrust bearing, the water/gas
Air inlet, exhaust outlet, inlet and liquid outlet are respectively equipped with the component of road, the air inlet and gas intercommunicating pore, each main body gas circuit, is prolonged
Hole, gas connecting hole, annular gas channel and exhaust outlet are stretched, collectively forms circulation gas circuit, the inlet and water intercommunicating pore, each main body water
Road, water connecting hole, annular water channel and liquid outlet, collectively form cooling circulating water road.
2. air supporting high-speed milling bloom two-in-one electric main shaft according to claim 1, it is characterised in that：The rotor assembly
It is connected including the axle despot located at push rod one end, the edge bar being connected by a connection piece with axle despot, by a chuck with edge bar
Rotor matrix and the shell fragment between rotor matrix and connector, the rotor matrix concave surface formed a cell body, should
Magnetic force piece is provided with cell body, the rotor matrix one end extends to form flying disc to outer ring, the rotor matrix and rear thrust bearing it
Between be provided with rotor fixed cover, the preceding thrust bearing and thrust bearing are respectively arranged on the flying disc both ends.
3. air supporting high-speed milling bloom two-in-one electric main shaft according to claim 1, it is characterised in that：The stator module
It is made up of respectively an insulation board by the stator base being set on rotor assembly and located at the winding section at stator base both ends.
4. air supporting high-speed milling bloom two-in-one electric main shaft according to claim 1, it is characterised in that：Thrust shaft after described
Loading end is in T shape, annular connectivity slot after the rear thrust bearing outer surface forms at least two by the flat position of radial direction gas circuit after one, should
Thrust bearing inwall corresponds to each rear annular connectivity slot and is circumferentially with rear annular groove afterwards, and respectively the rear annular connectivity slot passes through some rear thrusts
Valve is connected with corresponding rear annular groove respectively.
5. air supporting high-speed milling bloom two-in-one electric main shaft according to claim 1, it is characterised in that：The preceding thrust shaft
Loading end is in T shape, annular connectivity slot before the preceding thrust bearing outer surface forms at least two by the flat position of radial direction gas circuit before one, should
Preceding thrust bearing inwall corresponds to each preceding annular connectivity slot and is circumferentially with preceding annular groove, and respectively the preceding annular connectivity slot passes through some preceding thrusts
Valve is connected with corresponding preceding annular groove respectively, each preceding thrust valve in the one end that is connected close to preceding thrust bearing with spacer ring
On be also axially arranged with axial valve respectively, respectively the axial valve is connected with body interior.
6. air supporting high-speed milling bloom two-in-one electric main shaft according to claim 1, it is characterised in that：The water/gas road
Component is connected centrally through a mold insert with push rod, and the water/gas road component one end is provided with air chamber, and the air chamber passes through a conductive channel
It is connected with cylinder assembly, is opened in the middle part of air chamber bottom surface and be formed with type groove, return spring is provided with the type groove, the return spring one end
Contact and be provided with installation die cavity with cylinder assembly bottom surface, the water/gas road component other end, the installation die cavity is to thrust shaft after setting
Hold, the installation die cavity is connected with air inlet.
7. air supporting high-speed milling bloom two-in-one electric main shaft according to claim 1, it is characterised in that：The cylinder assembly
It is sheathed on push rod and is connected in water/gas road component, the push rod is provided with limiting section, and the cylinder assembly includes laminated structure
Multiple interlayer boards, the bonnet on the interlayer board of top, the power plate for being respectively arranged on bonnet and interlayer board bottom surface and located at point
Other interlayer board and top correspond to the gasket ring between power plate, and respectively the interlayer board bottom surface is respectively equipped with groove, respectively the interlayer board side wall
Upper to be axially arranged with plate stomata respectively, each plate stomata is connected, and respectively plate stomata difference radial skew is provided with radial hole, respectively the radial direction
Hole is connected with corresponding groove, and the power plate of the cylinder assembly bottom surface is connected with spacing, water/gas road component, each power plate
Between gasket ring, between each power plate and interlayer board and bottom surface power plate and limiting section, the junction of water/gas road component are distinguished
Provided with sealing ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610003137.1A CN105436530B (en) | 2016-01-04 | 2016-01-04 | Air-float high-speed milling highlight two-in-one electric spindle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610003137.1A CN105436530B (en) | 2016-01-04 | 2016-01-04 | Air-float high-speed milling highlight two-in-one electric spindle |
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| CN105436530A CN105436530A (en) | 2016-03-30 |
| CN105436530B true CN105436530B (en) | 2018-04-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108817421A (en) * | 2018-07-30 | 2018-11-16 | 东莞市显隆电机有限公司 | A kind of high-speed air floatation formula electro spindle of high-precision low energy consumption |
| CN113427400B (en) * | 2021-07-08 | 2023-08-15 | 江苏工大金凯高端装备制造有限公司 | High-speed air-float grinding main shaft |
| CN114273685B (en) * | 2022-02-14 | 2023-03-24 | 东北林业大学 | Air bearing and high-pressure air-floatation electric main shaft supported by air bearing |
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| JP3751439B2 (en) * | 1998-04-27 | 2006-03-01 | Ｎｔｎ株式会社 | Hydrostatic air bearing spindle device |
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| CN105436530A (en) | 2016-03-30 |
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Effective date of registration: 20171009 Address after: The third floor of Building No. 182 G Kwai 523000 Guangdong province Dongguan City Qing Zhen Qing Huang Village Industrial Zone Applicant after: Dongguan manifest Motor Co., Ltd. Address before: Kwai Qingxi Town 523000 Guangdong city of Dongguan province No. 182 building G Applicant before: DONGGUAN KELONG MOTOR CO., LTD. |
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Address after: 414000 building 27, Zhuoda Jingu entrepreneurship Park, high tech Industrial Development Zone, Jinlong Town, Xiangyin County, Yueyang City, Hunan Province Patentee after: Yueyang Xianlong Motor Co.,Ltd. Address before: 523000 3rd floor, building g, 182 Kwai Tsing Road, Qinghuang Village Industrial Zone, Qingxi Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN XIANLONG MOTOR CO.,LTD. |