CN106563818A - Air bearing spindle with speed measurement function - Google Patents
Air bearing spindle with speed measurement function Download PDFInfo
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- CN106563818A CN106563818A CN201610912981.6A CN201610912981A CN106563818A CN 106563818 A CN106563818 A CN 106563818A CN 201610912981 A CN201610912981 A CN 201610912981A CN 106563818 A CN106563818 A CN 106563818A
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
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- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses an air bearing spindle with a speed measurement function. The air bearing spindle with the speed measurement function comprises a body, a spindle core assembly, a power assembly, an aluminum water jacket, a cylinder, an upper bearing assembly, a lower bearing assembly, a thrust bearing assembly and a cover plate assembly, wherein the body is of a cavity structure; the spindle core assembly comprises a rotating shaft section and a chuck section; the rotating shaft section sleeves the chuck section; speed measurement grooves are formed in the rotating shaft section; the power assembly comprises a copper bordered rotor and a stator assembly; the copper bordered rotor is inlaid into the rotating shaft section; the stator assembly is arranged in the body and is opposite to the copper bordered rotor; the upper bearing assembly is arranged on the upper part of the rotating shaft section; speed measurement sensors are arranged on the upper part of the upper bearing assembly and correspond to the speed measurement grooves; the lower bearing assembly is arranged on the lower part of the rotating shaft section; the thrust bearing assembly is arranged on the chuck section; the cover plate assembly is arranged at the bottom of the thrust bearing assembly; the aluminum water jacket is arranged on the top of the upper bearing assembly; and the cylinder is arranged on the top of the aluminum water jacket. The air bearing spindle with the speed measurement function is easy to process, simple in structure and good in heat dissipation effect, and runs stably.
Description
Technical field
The present invention relates to technical field of processing equipment, more particularly to a kind of air-flotation electric spindle with speed measuring function.
Background technology
With the demand that economic development and technology soar, increasing new technology is continued to bring out, mechanical processing industry
It is being a dark horse, especially the electro spindle industry technology of position oneself at the forefront is innovated clearly.Electro spindle is by machine tool chief axis
The new technology combined together with spindle motor.
In the manufacturing process of pcb board, inevitably need to use electro spindle.With the miniaturization of electronic devices and components and each
The variation of electric appliances function, the integrated level more and more higher of pcb board.Minute aperture (Φ 0.05- Φ 0.2mm) on pcb board is also got over
Come more intensive, at present, the number of multi-layer sheet non-through hole is up to 100/cm2.Because pcb board is by glass fibre, asphalt mixtures modified by epoxy resin
The composite of fat, Copper Foil composition, fragility is big, poor thermal conductivity, meanwhile, the thermal coefficient of expansion difference of glass fibre and epoxy resin
It is very big, therefore considerably increase the difficulty of drilling.Particularly in the case of continuous drilling, the high-speed friction of drill bit and hole wall makes
Cutting temperature is raised, the serious phenomenon such as the resin melting of circuit board, stain.On the other hand, the quality of hole machined quality, especially
The roughness of hole wall, can be directly connected to reliability and the life-span of the heavy copper of follow-up sequence, the quality of plating and electronic product.In order to
The drilling efficiency for improving dense holes and the drilling quality for improving micro hole, it is necessary to using ultrahigh speed drilling, above-mentioned asking could be solved
Topic.Therefore, it is necessary to research and develop ultrahigh speed air-flotation electric spindle.
The rotating speed of existing air floated high speed electric mandrel is generally less than at 200,000 revs/min, and this is primarily due to air supporting shaft core, axle
Hold, the performance of the part such as motor is also difficult to reach high standards.Meanwhile, in the case of ultrahigh rotating speed, be to electro spindle
Rotating speed is measured even more extremely difficult.Although foreign countries develop electro spindle of the rotating speed more than 200,000 revs/min, the axle of rotating shaft
Footpath is smaller, is only used for processing micropore, and the parameter such as power can not all meet present situation.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of air-flotation electric master with speed measuring function
Axle, the air-flotation electric spindle rotating speed is fast, and rotating speed can be measured, and operates steadily, good heat dissipation effect；Meanwhile, handling ease,
It is simple structure, compact, production cost had both been saved, also extend the service life of main shaft.
The purpose of the present invention employs the following technical solutions realization：
A kind of air-flotation electric spindle with speed measuring function, including body, axle core component, Power Component, aluminium water jacket, cylinder,
Upper bearing (metal) component, lower bearing component, thrust bearing assembly and cover plate assembly；The body is cavity structure, in the body
Air inlet main channel and return gas channel are in axial direction respectively arranged with wall；The axle core component is arranged in the body,
It includes chuck section and rotating shaft section；The chuck section and the rotating shaft section are hollow structure；Axle is provided with the chuck section
Shoulder；The top of the rotating shaft section is provided with some grooves that test the speed；The bottom matching of the rotating shaft section is arranged and is fixed on the chuck
Duan Shang, and accept with the shaft shoulder；The Power Component includes edge copper rotor and stator module, and the edge copper rotor is embedded described
In rotating shaft section, and its outer wall is concordant with the outer wall of the rotating shaft section；The stator module is arranged on the inwall of the body, and
It is corresponding with the edge copper rotor；The upper bearing (metal) component, lower bearing component, thrust bearing assembly and cover plate assembly may be contained within
In the body, and it is set in from top to bottom successively outside the axle core component；Wherein, the upper bearing (metal) component is arranged at described turning
The top of shaft part, and it is formed with the first gap between the rotating shaft section；The top of the upper bearing (metal) component is provided with the biography that tests the speed
Sensor, the tachogenerator is corresponding with the groove that tests the speed；The lower bearing component is arranged at the bottom of the rotating shaft section, and position
In shaft shoulder top, the second gap is formed between the lower bearing component and the rotating shaft section, formed between the shaft shoulder
There is third space；The thrust bearing assembly is arranged in the chuck section, and positioned at shaft shoulder lower section, the thrust bearing
The 4th gap is formed between component and the shaft shoulder；The cover plate assembly is arranged at the bottom of the thrust bearing assembly；Institute
State the top that aluminium water jacket is arranged at the upper bearing (metal) component；The cylinder is arranged at the top of the aluminium water jacket, its work for arranging
Stopper rod is through the aluminium water jacket and stretches in the rotating shaft section；Air inlet, gas outlet and the first gas are provided with the aluminium water jacket
Road；The second gas circuit communicated with first gap is provided with the upper bearing (metal) component；It is provided with the lower bearing component
The 3rd gas circuit communicated with second gap, third space；It is provided with the thrust bearing assembly between the described 4th
The 4th gas circuit that gap is communicated；The air inlet of the aluminium water jacket is connected with the inlet end of first gas circuit, first gas circuit
Outlet side is connected with the inlet end of the air inlet main channel；Second gas circuit, the 3rd gas circuit, the 4th gas circuit inlet end with
Air inlet main channel connection, their outlet side connects with the return gas channel, the return gas channel and the aluminium water jacket
Gas outlet connection.
Preferably, first gas circuit includes the first air intake duct and the first gas off-take；The air inlet of the aluminium water jacket, first
Air intake duct and air inlet main channel are sequentially communicated；The outlet side of first gas off-take connects with the return gas channel, the return-air
Passage is connected with the gas outlet of the aluminium water jacket；Second gas circuit includes some first be arranged on the upper bearing (metal) component
Horizontal communication hole and the second gas off-take；The inlet end in the first horizontal communication hole is connected with the air inlet main channel, its outlet
End connects with first gap；The inlet end of second gas off-take is connected with first gap, its outlet side with it is described
Return gas channel is connected；3rd gas circuit include being arranged at some second horizontal communication holes on the lower bearing component, first
Vertical passage and the 3rd gas off-take；The inlet end in the second horizontal communication hole is connected with the air inlet main channel, its outlet
End connects with second gap；The inlet end of the first vertical passage is connected with the second horizontal communication hole, and it goes out
Gas end connects with the third space；The inlet end of the 3rd gas off-take is connected with second gap, third space, its
Outlet side connects with the return gas channel；4th gas circuit includes the second air inlet being arranged on the thrust bearing assembly
Road, the second vertical passage and the 4th gas off-take；The inlet end of second air intake duct is connected with the air inlet main channel, and it goes out
Gas end connects with the inlet end of the described second vertical passage, outlet side and the 4th gap of the second vertical passage
Connection；The inlet end of the 4th gas off-take is connected with the 4th gap, and its outlet side connects with the return gas channel.
Preferably, first housing inlet channel, second housing inlet channel, the first backwater road are respectively arranged with the body
With the second backwater road；Water inlet, delivery port, the first inlet channel and the first water outlet are provided with the aluminium water jacket；The upper axle
The first water channel is provided with bearing assembly；Copper sheathing is arranged with outside the stator module；It is interior on the copper sheathing to be provided with the second water channel；Institute
State and be provided with lower bearing component the 3rd water channel；The 4th water channel is provided with the thrust bearing assembly；Set in the cover plate assembly
It is equipped with the 5th water channel；The water inlet end of first inlet channel is connected with the water inlet of the aluminium water jacket, its water side and described
The water inlet end connection of one body inlet channel；The water side of the first housing inlet channel and second water channel, the 3rd water channel,
Three body inlet channels, the 4th water channel and the 5th water channel are sequentially communicated, and the water side of the 5th water channel is logical with first backwater
The water inlet end connection in road, the water side of first backwater channel is connected with the water inlet end of first water channel, and described first enters
The water side of water channel is connected with the water inlet end in the second backwater road, the water side in the second backwater road and first water outlet
The water inlet end connection in road, the water side of first water outlet is connected with the delivery port of the aluminium water jacket.
Preferably, first water channel, the second water channel, the 3rd water channel, the 4th water channel and the 5th water channel are water annulus；
Annular spacer is provided with the copper sheathing；The annular spacer is arranged in second water channel, second water channel
It is separated into the top water channel and bottom water channel of connection；The upper bearing (metal) component includes the first overcoat and the first inner sleeve；Described first
Overcoat matching is sheathed on outside the first inner sleeve；It is provided with first overcoat in first annular water channel A, first inner sleeve and arranges
There is first annular water channel B；The first annular water channel A connects composition first water channel with the second water annulus B；It is described
Lower bearing component includes the second overcoat and the second inner sleeve；The second overcoat matching is sheathed on outside the second inner sleeve；Outside described second
The 3rd water annulus A is provided with set, in second inner sleeve the 3rd water annulus B is provided with；The 3rd water annulus A and
The 3rd water annulus B connections constitute the 4th water channel.
Preferably, also including chuck component, the chuck component includes axle despot, disc spring and chuck；The chuck include according to
The cylindrical portion and conical section of secondary connection；The conical section is provided with first annular to cave inward on cavity structure, and its outer wall
Oil storage tank；The axle despot is arranged in the rotating shaft section, and positioned at the lower section of the piston rod；The bottom of the chuck section is formed
There is taper installing hole；The top of the chuck cylindrical portion is arranged in the axle despot, and its conical section is arranged at the taper and installs
In hole and extend downwardly from, and the first annular oil storage tank is relative with the inwall of the taper installing hole；The disc spring is sheathed on
In the cylindrical portion of the chuck, its top is connected with the bottom of axle despot, and its bottom is connected with the top surface of the chuck section.
Preferably, the axle despot includes axle despot's inner sleeve and axle despot's overcoat, and the axle despot overcoat matching is set in the axle despot
Outside inner sleeve, and the axle is seized by force to be caved inward on the outer wall of overcoat and is provided with the second annular oil storage tank；In the cylindrical portion of the chuck
It is provided with out vent hole；It is described go out vent hole chuck described in insertion from top to bottom cylindrical portion, and with the cavity of the conical section
Communicate.
Preferably, also including flux sleeve, the flux sleeve is arranged in the rotating shaft section, and be set in the rotating shaft section
The outer edge copper rotor is relative.
Preferably, also including some damping plugs；Through hole is provided with the damping plug, the through hole includes inlet end and goes out
Gas end, the internal diameter of the inlet end is more than the internal diameter of the outlet side, and the afterbody of the outlet side expands outwardly to form loudspeaker
Chamber；It is provided with the first horizontal communication hole, the second horizontal communication hole, the first vertical passage and the second vertical passage
The damping plug.
Preferably, the cover plate assembly includes cover board body and cover plate inner sleeve；The cover plate inner sleeve is arranged at the cover plate
This in vivo, and is sheathed on the conical section of the chuck, and the 5th gap is formed with and the conical section of the chuck between；It is described
5th gap axially communicates along the conical section of the chuck with extraneous, and connects with the 4th gap.
Preferably, piston head is connected with the piston rod, the outer wall of the piston head caves inward and is provided with some rings
Connected in star；Sealing ring is provided with some annular grooves, matching outside the sealing ring is arranged with plastic hoop.
In addition, body can take the design of inner-outer sleeve, overcoat to coat inner sleeve completely.
Compared to existing technology, the beneficial effects of the present invention is：
(1) air-flotation electric spindle with speed measuring function provided by the present invention, with speed measuring device, including being arranged on upper axle
Tachogenerator on bearing assembly and the groove that tests the speed being arranged in rotating shaft.If the maximum speed of electro spindle reaches 250,000 revs/min
Clock, under so at a high speed in the case of, rotating shaft should as far as possible take small design, be limited to little space, typically cannot reserved place
Put installation speed measuring device.The air-flotation electric spindle of the present invention, tachogenerator is put installed in the outer of upper bearing (metal), while in shaft core
Upper position open up the groove that tests the speed of several even circumferentials distribution, such as 6, abundant save space.Due to the groove that tests the speed be to
Lower recess, the distance between the distance between test the speed groove and tachogenerator and the cylindrical wall of shaft core and tachogenerator not phase
Together, when axle core component fortune circles, tachogenerator obtains 6 signals feedback, and with this actual speed of electro spindle is measured, can be with
When monitor main shaft working order, when the maximum speed of electro spindle reaches 250,000 revs/min, test the speed still errorless.Also, this
The there is provided air-flotation electric spindle of invention, air supporting gas circuit is reasonable in design, ensure that electro spindle in the course of the work, axle core component with
Peripheral parts are contactless, and rotational stability is high, and speed is fast.
(2) air-flotation electric spindle with speed measuring function provided by the present invention, is provided with cooling water system, radiating effect
It is good.Stator module appearance is provided with copper sheathing, after coolant is flowed into from the water inlet of aluminium water jacket, after first housing inlet channel,
(stator module heating is maximum, and coolant cools down at first stator, can to greatest extent take away heat to initially enter the second water channel in copper sheathing
Amount)；Then, the coolant for flowing out from copper sheathing sequentially enters lower bearing component, thrust bearing assembly and cover plate assembly, then leads to
After the backwater channel crossed in body, flow into upper bearing (metal) component in first, most after Jing aluminium water jacket assembly flow out.This design, can
Quickly to take away the heat of motor generation, it is ensured that main shaft works at a constant temperature, can effectively extend the use of main shaft
Life-span.
(3) air-flotation electric spindle with speed measuring function provided by the present invention, in order to further improve heat-sinking capability, stator
Copper sheathing outside component adopts compulsory circulative cooling water channel design, i.e., annular spacer is arranged in the second water channel, on being formed
Portion's water channel and bottom water channel, cooling water is entered from top water channel, after forced circulation is enclosed around stator upper end one, into bottom water
Road, returns to the inlet channel of body after enclosing further around stator lower end one.In addition, upper bearing (metal) component and lower bearing component adopt inner-outer sleeve
Combination Design, coolant can be directly over inner sleeve water channel, take away more heats, that is to say, that the cooling flowed out from copper sheathing
Liquid, afterwards into the overcoat of lower bearing component, after circulating one week, into the inner sleeve of lower bearing, after circulating one week, flows into lower bearing again
Another hole of component overcoat, then flows into the water channel that thrust bearing assembly is combined with cover plate assembly, after circulating one week, further through machine
The backwater channel of body is flowed in the overcoat of upper bearing (metal) component, then flows into the inner sleeve of upper bearing (metal) component, after circulating one week, is flowed into again
The overcoat of upper bearing (metal) component, the delivery port eventually passed on aluminium water jacket assembly flows out.Coolant is repeatedly circulated inside main shaft, is removed
Axle core component part can not directly cool down outer, and other structures have cooling water directly to cool down, good heat dissipation effect.Meanwhile, while
Supported using sealing ring between the inner-outer sleeve of upper bearing (metal) component and the inner-outer sleeve of lower bearing component, can not only be by air flue and water channel
Separate, and also act as the effect of vibration damping, it is ensured that main shaft smoothly operates under ultrahigh speed.
(4) air-flotation electric spindle with speed measuring function provided by the present invention, is provided with the first ring on the conical section of chuck
Shape oil storage tank.In order to ensure the chucking power of chuck, and prevent it from wearing and tearing in multiple tool changing, chuck connects with taper installing hole
Contacting surface needs coating lubricating oil, and as tool changing and wash number increase, lubricating oil fades away.Chuck is provided with oil storage tank, profit
Lubricating oil can be stored in oil storage tank, can ensure chucking power size to taper installing hole make-up oil, persistently at the moment, so as to ensure
The processing characteristics of main shaft.
(5) air-flotation electric spindle with speed measuring function provided by the present invention, is provided with out on the middle part of chuck cylindrical portion
Vent hole, when running up, there is substantial amounts of gas inside to shaft core, and some gas can go out vent hole through chuck,
Cutter is blowed to, shaft core and cutter can be cooled down, while in tool changing, can effectively prevent dust from entering inside shaft core.
(6) air-flotation electric spindle with speed measuring function provided by the present invention, shaft core front end is designed using sealing gland, i.e. cover plate
The inner sleeve of component leaves the 5th gap with shaft core chuck section front end, and gas can flow to outside by the gap in system, while
Sealing gland effect is played, prevents dust in process from entering inside main shaft, extend Main Shaft Service Life, while can also be by workpiece
Remained on surface blows away, and improves finishes.Meanwhile, the inner sleeve of cover plate assembly takes high-abrasive material to prepare, even if itself and axle
Core is clipped, and will not also injure shaft core, is conducive to extending the life-span of electro spindle.
(7) air-flotation electric spindle with speed measuring function provided by the present invention, the first horizontal communication hole, the second horizontal communication
Damping plug resistance is provided with hole, the first vertical passage and the second vertical passage, Ni Sainei is provided with through hole, through hole enters
Gas end internal diameter is more than outlet side internal diameter, and outlet side expands outwardly to form horn-like.When gas is reached from the inlet end of damping plug
During outlet side, flow velocity increase increases the bearing capacity to shaft core, when air-flow passes through trumpet-shaped outlet tail end, will not form whirlpool
Stream, the pressure loss of air film reduces, and so as to increase the support force to shaft core, and can reduce caloric value.
(8) air-flotation electric spindle with speed measuring function provided by the present invention, the chuck section and rotating shaft section of axle core component are
Weld together, i.e., disk spring is non-dismountable, before weld clip head section and rotating shaft section, disk spring needs to pre-install in advance,
Such set-up mode is taken, cylindrical larger and thicker disk spring is can select, the broach force of main shaft can be effectively increased.Due to
Disk spring is thicker, and its shock resistance is higher, this disc spring can bump more than 500,000 times and keep broach force it is constant, effectively
The service life for extending electro spindle.
(9) air-flotation electric spindle with speed measuring function provided by the present invention, is provided with flux sleeve in shaft core, it is to avoid
The drawbacks of whole shaft core takes the preferable material of magnetic conduction ability to prepare in prior art.Flux sleeve can take thicker structure,
Because disk spring is non-dismountable, without the need for loading disk spring from shaft core rear end, therefore the thickness of flux sleeve can be thickened, magnetic conduction
Set is made using the material with good magnetic conduction, the magnetic loss of electric system is effectively reduced, so as to increase the power of main shaft.
(10) air-flotation electric spindle with speed measuring function provided by the present invention, axle despot adopts the set-up mode of inner-outer sleeve,
Every time during broaching tool, axle despot all can move back and forth once, and axle despot's overcoat is made using high-abrasive material, and increases oil storage tank, itself and axle
The friction of in-core wall (being formed from steel) reduces as far as possible, and can be using interference fits (such as between axle despot's overcoat and shaft core
Fruit axle seizes by force whole Steel material, can only be coordinated using gap between the two, and when shaft core runs up, axle despot can rock, and cause
Vibration is big, can affect the life-span) so that axle is seized by force overcoat and is increased with the contact area of shaft core inwall, can effectively subtract when running up
Small vibration.Axle seizes by force inner sleeve and overcoat adopts interference fit, and designs glue groove, it is ensured that strong bonded between inner-outer sleeve.
(11) air-flotation electric spindle with speed measuring function provided by the present invention, body is by set group in body overcoat and body
Into.Radial hole in body inner sleeve takes annular groove to design, and can effectively avoid in assembling, the burr in aperture scratch sealing ring and
Cause the phenomenon of leak.Meanwhile, after the completion of the assembling of whole electro spindle, upper bearing (metal) component, lower bearing component, thrust bearing assembly and
Cover plate assembly is completely encapsulated in body overcoat, and effectively can prevent from running up the risk for being thrown out of part, make electro spindle
Security performance further improve.
(12) air-flotation electric spindle with speed measuring function provided by the present invention, the piston head in cylinder increases plastic hoop,
The plastic hoop is by made by special high-abrasive material.During forging a knife, piston can be moved back and forth electro spindle, prior art
In, there was only ring structure at the cylindrical place of piston head, sealing effectiveness very well, but wears no resistance, and after repeatedly forging a knife, sealing ring is easy
Abrasion.And the present invention increases plastic hoop outside sealing ring, the wearability of plastic hoop is fine so that the sealing effectiveness of cylinder can be long-term
Meet use requirement, the life-span improves more than 3 times.
Description of the drawings
Fig. 1 is the air flue sectional view of the air-flotation electric spindle with speed measuring function provided by the present invention；
Fig. 2 is the water channel sectional view of the air-flotation electric spindle with speed measuring function provided by the present invention；
Fig. 3 is the assembling schematic diagram of axle core component provided by the present invention and chuck component；
Fig. 4 is the schematic diagram of cylinder block set provided by the present invention；
Fig. 5 is local (circle A) enlarged drawing of Fig. 1；
Fig. 6 is local (circle B) enlarged drawing of Fig. 1；
Fig. 7 is local (circle C) enlarged drawing of Fig. 1；
Fig. 8 is local (circle D) enlarged drawing of Fig. 1；
Fig. 9 is local (circle E) enlarged drawing of Fig. 3；
Figure 10 is the schematic diagram of copper sheathing provided by the present invention；
Figure 11 is the schematic diagram of damping plug provided by the present invention；
In figure：10th, body；11st, body overcoat；12nd, body inner sleeve；13rd, annular groove；20th, axle core component；21st, rotating shaft section；
22nd, chuck section；23rd, flux sleeve；24th, test the speed groove；30th, cylinder；31st, piston rod；32nd, piston head；33rd, plastic hoop；34th, seal
Circle；40th, copper rotor is inlayed；41st, stator module；42nd, copper sheathing；43rd, annular spacer；50th, aluminium water jacket；51st, air inlet；52nd, outlet
Mouthful；53rd, water inlet；54th, delivery port；60th, upper bearing (metal) component；61st, the first inner sleeve；62nd, the first overcoat；70th, lower bearing component；
71st, the second inner sleeve；72nd, the second overcoat；80th, thrust bearing assembly；90th, cover plate assembly；91st, cover plate inner sleeve；92nd, the 5th gap；
101st, axle despot；1011st, axle despot overcoat；1012nd, axle despot inner sleeve；1013rd, the second annular oil storage tank；102nd, disc spring；103rd, chuck；
1031st, vent hole is gone out；104th, first annular oil storage tank；110th, the first air intake duct；111st, air inlet main channel；112nd, first is laterally logical
Pore；113rd, the second horizontal communication hole；114th, the first vertical passage；115th, the second vertical passage；116th, the 4th gas circuit；
117th, return gas channel；118th, the second gas off-take；119th, the first gas off-take；120th, the first inlet channel；121st, first housing inlet channel；
122nd, the first water channel；123rd, the second water channel；1231st, top water channel；1232nd, bottom water channel；124th, second housing inlet channel；125、
3rd water channel；126th, the 4th water channel；127th, the 5th water channel；128th, the second backwater road；129th, the first water outlet；130th, damping plug；
131st, inlet end；132nd, outlet side.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, the present invention is described further：
As shown in figs. 1-11, a kind of air-flotation electric spindle with speed measuring function, including body 10, axle core component 20, power
Component, aluminium water jacket 50, cylinder 30, upper bearing (metal) component 60, lower bearing component 70, thrust bearing assembly 80 and cover plate assembly 90；Machine
Body 10 is cavity structure, and air inlet main channel 111 and return gas channel are in axial direction respectively arranged with the wall of body 10
117；Axle core component 20 is arranged in body 10, and it includes chuck section 22 and rotating shaft section 21；(see Fig. 3) chuck section 22 and rotating shaft section
21 are hollow structure；The shaft shoulder is provided with chuck section 22；The top of rotating shaft section 21 is provided with some grooves 24 that test the speed；Rotating shaft section 21
Bottom matching be arranged and be fixed in chuck section 22, and with the shaft shoulder accept；The Power Component includes edge copper rotor 40
With stator module 41, edge copper rotor 40 is embedded in rotating shaft section 21, and its outer wall is concordant with the outer wall of rotating shaft section 21；Stator module 41
It is arranged on the inwall of body 10, and it is corresponding with edge copper rotor 40；Upper bearing (metal) component 60, lower bearing component 70, thrust bearing
Component 80 and cover plate assembly 90 may be contained within body 10, and be set in from top to bottom successively outside axle core component 20；Wherein, upper axle
Bearing assembly 60 is arranged at the top of rotating shaft section 21, and the first gap is formed between rotating shaft section 21；Upper bearing (metal) component 60 it is upper
Portion is provided with tachogenerator, and the tachogenerator is corresponding with the groove that tests the speed；Lower bearing component 70 is arranged at rotating shaft section 21
Bottom, and positioned at the shaft shoulder top, the second gap is formed between lower bearing component 70 and rotating shaft section 21, with the shaft shoulder it
Between be formed with third space；Thrust bearing assembly 80 is arranged in chuck section 22, and positioned at shaft shoulder lower section, thrust bearings
The 4th gap is formed between part 80 and the shaft shoulder；Cover plate assembly 90 is arranged at the bottom of thrust bearing assembly 80；Aluminium water jacket
50 tops for being arranged at upper bearing (metal) component 60；Cylinder 30 is arranged at the top of aluminium water jacket 50, and the piston rod 31 that it is arranged passes through aluminium
Water jacket 50 is simultaneously stretched in rotating shaft section 21；Air inlet 51, the gas circuit of gas outlet 52 and first are provided with aluminium water jacket 50；Upper bearing (metal) component
The second gas circuit communicated with first gap is provided with 60；Be provided with lower bearing component 70 with second gap, the
The 3rd gas circuit that three gaps communicate；The 4th gas circuit 116 communicated with the 4th gap is provided with thrust bearing assembly 80；
The air inlet 51 of aluminium water jacket 50 is connected with the inlet end of first gas circuit, outlet side and the air inlet main channel of first gas circuit
111 inlet end connection；Second gas circuit, the 3rd gas circuit, the inlet end of the 4th gas circuit 116 connect with air inlet main channel 111
Logical, their outlet side connects with return gas channel 117, and return gas channel 117 is connected with the gas outlet 52 of aluminium water jacket 50.
There should be the air-flotation electric spindle of speed measuring function, the chuck section 22 and rotating shaft section 21 of axle core component 20 are welded to together
, i.e., disc spring 102 is non-dismountable, and before weld clip head section 22 and rotating shaft section 21, disc spring 102 needs to pre-install in advance, takes so
Set-up mode, can select cylindrical larger and thicker disc spring 102, the broach force of main shaft can be effectively increased.Due to disc spring 102 compared with
Thickness, its shock resistance is higher, this disc spring 102 can bump more than 500,000 times and keep broach force constant, effectively extend
The service life of electro spindle.
In addition, body 10 can take the design of inner-outer sleeve, i.e., including body overcoat 11 and body inner sleeve 12.Such as Fig. 4 institutes
Show, the radial hole in body inner sleeve 12 takes annular groove 13 to design, can effectively avoid in assembling, the burr in aperture scratches sealing
Enclose and cause the phenomenon of leak.Meanwhile, after the completion of whole electro spindle assembling, upper bearing (metal) component 60, lower bearing component 70, thrust axis
Bearing assembly 80 and cover plate assembly 90 are completely encapsulated in body overcoat 11, and effectively can prevent from running up makes what part was thrown out of
Risk, the security performance for making electro spindle is further improved.
Below, the air-channel system with the air-flotation electric spindle of speed measuring function is further described.As shown in figure 1, institute
The first gas circuit is stated including the first air intake duct 110 and the first gas off-take 119；The air inlet 51 of aluminium water jacket 50, the and of the first air intake duct 110
Air inlet main channel 111 is sequentially communicated；The outlet side of the first gas off-take 119 connects with return gas channel 117, return gas channel 117 and aluminium
The gas outlet 52 of water jacket 50 connects；Second gas circuit includes some first horizontal communication holes being arranged on upper bearing (metal) component 60
112 and second gas off-take 118；The inlet end in the first horizontal communication hole 112 is connected with air inlet main channel 111, its outlet side and institute
State the connection of the first gap；The inlet end of the second gas off-take 118 is connected with first gap, its outlet side and return gas channel 117
Connection；3rd gas circuit includes that some second horizontal communication holes 113, first being arranged on lower bearing component 70 are vertically ventilated
The gas off-take of hole 114 and the 3rd；The inlet end in the second horizontal communication hole 113 is connected with air inlet main channel 111, its outlet side with it is described
Second gap connects；The inlet end of the first vertical passage 114 is connected with the second horizontal communication hole 113, its outlet side with it is described
Third space is connected；The inlet end of the 3rd gas off-take is connected with second gap, third space, its outlet side with return
Gas passage 117 is connected；4th gas circuit 116 includes the second air intake duct, the second vertical ventilation being arranged on thrust bearing assembly 80
The gas off-take of hole 115 and the 4th；The inlet end of second air intake duct is connected with air inlet main channel 111, and its outlet side is erected with second
Connect to the inlet end of passage 115, the outlet side of the second vertical passage 115 connects with the 4th gap；Described 4th
The inlet end of gas off-take is connected with the 4th gap, and its outlet side connects with return gas channel 117.
In addition, in order to the air-flotation electric spindle provided to the embodiment of the present invention is radiated, improving service behaviour, prolongation makes
Use the life-span.As shown in Fig. 2 the air-flotation electric spindle is additionally provided with cooling water system, 10 are respectively arranged with the first housing in body
Inlet channel 121, second housing inlet channel 124, the first backwater road and the second backwater road 128；Water inlet is provided with aluminium water jacket 50
53rd, delivery port 54, the first inlet channel 120 and the first water outlet 129；The first water channel 122 is provided with upper bearing (metal) component 60；Stator
Copper sheathing 42 is arranged with outside component 41；It is interior on copper sheathing 42 to be provided with the second water channel 123；The 3rd water channel is provided with lower bearing component 70
125；The 4th water channel 126 is provided with thrust bearing assembly 80；The 5th water channel 127 is provided with cover plate assembly 90；First inlet channel
120 water inlet end is connected with the water inlet 53 of aluminium water jacket 50, and its water side connects with the water inlet end of first housing inlet channel 121；
The water side of first housing inlet channel 121 and the second water channel 123, second housing inlet channel 124, the 3rd water channel 125, the 4th water channel
126 and the 5th water channel 127 be sequentially communicated, the water side of the 5th water channel 127 is connected with the water inlet end of first backwater channel, institute
The water side for stating the first backwater channel is connected with the water inlet end of the first water channel 122, the water side of the first inlet channel 120 with second time
The water inlet end connection of water channel 128, the water side in the second backwater road 128 is connected with the water inlet end of the first water outlet 129, the first water outlet
The water side in road 129 is connected with the delivery port 54 of aluminium water jacket 50.
In order to further improve heat-sinking capability, more specifically, following set-up mode can be taken：First water channel 122, second
Water channel 123, the 3rd water channel 125, the 4th water channel 126 and the 5th water channel 127 are water annulus；As shown in Figure 10, in copper sheathing 42
It is provided with annular spacer 43；Annular spacer 43 is arranged in the second water channel 123, and the second water channel 123 is separated into connection
Top water channel 1231 and bottom water channel 1232；As shown in fig. 6, upper bearing (metal) component 60 includes the first overcoat 62 and the first inner sleeve 61；
The matching of first overcoat 62 is sheathed on outside the first inner sleeve 61；First annular water channel A is provided with first overcoat 62, in the first inner sleeve 61
It is provided with first annular water channel B；The first annular water channel A connects the first water channel 122 of composition with the second water annulus B；
Lower bearing component 70 includes the second overcoat 72 and the second inner sleeve 71；The matching of second overcoat 72 is sheathed on outside the second inner sleeve 71；Second
The 3rd water annulus A is provided with overcoat 72, in the second inner sleeve 71 the 3rd water annulus B is provided with；The 3rd water annulus A
The 4th water channel 126 of composition is connected with the 3rd water annulus B.
In the air-flotation electric spindle course of work, water (flow) direction is as follows：After coolant is flowed into from the water inlet 53 of aluminium water jacket 50,
After first housing inlet channel 121, the top water channel 1231 initially entered in copper sheathing 42 is entered, and forced circulation is around stator pack
After 41 upper end of part one is enclosed, into bottom water channel 1232, the inlet channel of body 10 is returned to after enclosing further around 41 lower end of stator module one.Separately
Outward, upper bearing (metal) component 60 and lower bearing component 70 adopt inner-outer sleeve Combination Design, coolant to be directly over inner sleeve water channel, band
Walk more heats, that is to say, that the coolant flowed out from copper sheathing 42, afterwards into the overcoat of lower bearing component 70, circulation one
Zhou Hou, into the inner sleeve of lower bearing component 70, after circulating one week, flows into another hole of the overcoat of lower bearing component 70 again, then flows
Enter the water channel that thrust bearing assembly 80 is combined with cover plate assembly 90, after circulating one week, flow into further through the backwater channel of body 10
In the overcoat of upper bearing (metal) component 60, the inner sleeve of upper bearing (metal) component 60 is then flowed into, after circulating one week, upper bearing (metal) component 60 is flowed into again
Overcoat, the delivery port 54 eventually passed on aluminium water jacket 50 flows out.Coolant is repeatedly circulated inside main shaft, except axle core component
Outside 20 parts can not directly cool down, other structures have cooling water directly to cool down, good heat dissipation effect.Meanwhile, while upper bearing (metal) group
Supported using sealing ring between the inner-outer sleeve of part 60 and the inner-outer sleeve of lower bearing component 70, can not only by air flue and water channel every
Open, and also act as the effect of vibration damping, it is ensured that main shaft smoothly operates under ultrahigh speed.
As Figure 1-3, also including chuck component, the chuck component includes axle despot 101, disc spring 102 and chuck 103；
Chuck 103 includes cylindrical portion and the conical section being sequentially connected；The conical section is to cave inward to set on cavity structure, and its outer wall
It is equipped with first annular oil storage tank 104 (see Fig. 7)；Axle despot 101 is arranged in rotating shaft section 21, and positioned at the lower section of piston rod 31；Folder
The bottom of head section 22 is formed with taper installing hole；The top of the cylindrical portion of chuck 103 is arranged in axle despot 101, and its conical section sets
It is placed in the taper installing hole and extends downwardly from, and first annular oil storage tank 104 is relative with the inwall of the taper installing hole；
Disc spring 102 is sheathed in the cylindrical portion of chuck 103, and its top is connected with the bottom of axle despot 101, the top of its bottom and chuck section 22
Face connects.First annular oil storage tank 104 is provided with the conical section of chuck 103.In order to ensure the chucking power of chuck 103, and
Prevent it from wearing and tearing in multiple tool changing, chuck 103 needs coating lubricating oil with the contact surface of taper installing hole, with tool changing and clearly
Increased frequency is washed, lubricating oil fades away.Chuck 103 is provided with oil storage tank, and lubricating oil can be stored in oil storage tank, can the moment pair
Taper installing hole make-up oil, persistently ensures chucking power size, so as to ensure the processing characteristics of main shaft.
As shown in figure 9, axle despot 101 includes that axle seizes by force inner sleeve 1012 and axle despot's overcoat 1011, axle despot's matching of overcoat 1011 is arranged
Outside axle despot's inner sleeve 1012, and axle is seized by force to be caved inward on the outer wall of overcoat 1011 and is provided with the second annular oil storage tank 1013；Chuck
Vent hole 1031 is provided with out in 103 cylindrical portion；Go out the cylindrical portion of the insertion chuck 103 from top to bottom of vent hole 1031, and with
The cavity of the conical section is communicated.Axle despot 101 adopts the set-up mode of inner-outer sleeve, and during each broaching tool, axle despot 101 can back and forth transport
Dynamic once axle is seized by force overcoat 1011 and is made using high-abrasive material, and increases oil storage tank, its friction with shaft core inwall (being formed from steel)
Reduce as far as possible, and can be using interference fits (if axle seizes by force 101 whole steel between axle despot's overcoat 1011 and shaft core
Material, can only be coordinated between the two using gap, and when shaft core runs up, axle despot 101 can rock, and cause vibration big, can affect
Life-span) so that axle is seized by force overcoat 1011 and is increased with the contact area of shaft core inwall, and vibration can be effectively reduced when running up.Axle
Despot's inner sleeve 1012 and overcoat adopt interference fit, and design glue groove, it is ensured that strong bonded between inner-outer sleeve.The cylindrical portion of chuck 103
Middle part on be provided with out vent hole 1031, when running up, there is substantial amounts of gas inside to shaft core, and some gas can be with
Go out vent hole 1031 through chuck 103, blow to cutter, shaft core and cutter can be cooled down, while in tool changing, can be effective
Prevent dust from entering inside shaft core.
As shown in figure 3, also including flux sleeve 23, flux sleeve 23 is arranged in rotating shaft section 21, and be set in rotating shaft section 21
Outer edge copper rotor 40 is relative.Flux sleeve 23 is provided with shaft core, it is to avoid whole shaft core takes magnetic conduction energy in prior art
Prepared by power preferable material the drawbacks of.Flux sleeve 23 can take thicker structure, due to disc spring 102 it is non-dismountable, without the need for from
Shaft core rear end loads disc spring 102, therefore the thickness of flux sleeve 23 can be thickened, and flux sleeve 23 is using the material with good magnetic conduction
Make, be effectively reduced the magnetic loss of electric system, so as to increase the power of main shaft.
Additionally, should have the air-flotation electric spindle of speed measuring function also includes some damping plugs 130.As shown in figure 11, damping plug
Through hole is provided with 130, the through hole includes inlet end 131 and outlet side 132, and the internal diameter of inlet end 131 is more than outlet side 132
Internal diameter, and the afterbody of outlet side 132 expands outwardly to form horn chamber；First horizontal communication hole 112, the second horizontal communication hole
113rd, it is provided with damping plug 130 in the first vertical passage 114 and the second vertical passage 115.130 inlet end in damping plug
131 internal diameters are more than the internal diameter of outlet side 132, and outlet side 132 expands outwardly to form horn-like.When gas is from damping plug 130
When inlet end 131 reaches outlet side 132, flow velocity increase increases the bearing capacity to shaft core, and air-flow passes through trumpet-shaped outlet tail
During end, vortex will not be formed, the pressure loss of air film reduces, and sends out so as to increasing the support force to shaft core, and be able to can reducing
Heat.
As shown in figure 8, cover plate assembly 90 includes cover board body and cover plate inner sleeve 91；Cover plate inner sleeve 91 is arranged at the cover plate
This in vivo, and is sheathed on the conical section of chuck 103, and the 5th gap 92 is formed with and the conical section of chuck 103 between；5th
Gap 92 axially communicates along the conical section of chuck 103 with extraneous, and connects with the 4th gap.That is, shaft core front end
Designed using sealing gland, i.e., cover plate inner sleeve 91 leaves gap with the front end of shaft core chuck section 22, and gas can pass through the clearance flow in system
To the outside, while also functioning to sealing gland effect, prevent dust in process from entering inside main shaft, extend Main Shaft Service Life, together
When can also by surface of the work residual blow away, improve finishes.Meanwhile, cover plate inner sleeve 91 takes high-abrasive material to prepare,
Even if it is clipped with shaft core, shaft core will not be also injured, be conducive to extending the life-span of electro spindle.
As shown in Figure 1 and Figure 5, piston head 32 is connected with piston rod 31, the outer wall of piston head 32 caves inward and is provided with
Some annular grooves；Sealing ring 34 is provided with some annular grooves, the outer matching of sealing ring 34 is arranged with plastic hoop 33.
Piston head 32 in cylinder 30 increases plastic hoop 33, and the plastic hoop 33 is by made by special high-abrasive material.Electro spindle is being beaten
During knife, piston can be moved back and forth, and in prior art, there was only the structure of sealing ring 34, sealing effect at the cylindrical place of piston head 32
Fruit very well, but wears no resistance, and after repeatedly forging a knife, sealing ring 34 is easy to wear.And the present invention increases plastic hoop 33 outside sealing ring 34,
The wearability of plastic hoop 33 is fine so that the sealing effectiveness of cylinder 30 can for a long time meet use requirement, and the life-span improves more than 3 times.
Further, the middle part that copper rotor 40 is arranged at rotating shaft section 21 is inlayed, i.e., using the edge middle-containing structure of copper rotor 40, inlays copper
Rotor 40 is placed in the centre of air supporting shaft core, can effectively ensure the stability of electro spindle.
The operation principle of the air-flotation electric spindle with speed measuring function that the embodiment of the present invention is provided is as described below：
Air-flotation electric spindle with speed measuring function provided by the present invention, pressure-air is from upper bearing (metal) air inlet through aluminium water
After set component, upper bearing (metal) component is partly into, then a part sequentially enters lower bearing component and thrust by cylinder block set
Bearing assembly.Gas is entered between upper bearing (metal) component and rotating shaft section by the first horizontal communication hole in upper bearing (metal) component
First gap, forms high pressure air film, and to the upper end of shaft core radial support effect is played；In the same manner, gas is by lower bearing component
The second horizontal communication hole, the second gap entered between lower bearing component and rotating shaft section, formed high pressure air film, to shaft core
Play radial support effect in lower end.Meanwhile, gas by the first vertical passage in lower bearing component, is entered into from top to bottom
The third space formed between lower bearing component and the shaft shoulder, forms high pressure air film, and downward axial supporting role is played to shaft core；
Gas by the second vertical passage in thrust bearing assembly, enters into shape between thrust bearing assembly and the shaft shoulder from the bottom up
Into the 4th gap, formed high pressure air film, axial supporting role upwards is played to shaft core.High pressure air film radial support and
Under axial supporting role, shaft core contactless can suspend, and guarantee that shaft core has certain bearing capacity and rigidity.
Edge copper rotor is embedded in shaft core by the way of embedding copper mouse cage, and in the axial direction, copper cage rotor will not be to
Evagination goes out shaft core, is generally flush with the outer wall of shaft core, save space.Edge copper rotor constitutes phase asynchronous induced electricity with stator module
Machine, high frequency alternating current is passed through by driver to stator module so that is constituted alternating magnetic field between stator and edge copper rotor, is inlayed
Copper bar in copper rotor produces induced-current, and then inlays copper rotor by rotation torque, drives whole shaft core one to act as rotation at a high speed
Turn.
When needing to carry out cutter changing, to top cylinder compressed gas, the axle despot of piston rod impeller-hub in-core, pressure are passed through
Contracting disc spring moves down chuck to open, and so as to unloading bottom tool and loading new cutter, cut-out cylinder supply just can Automatic-clamping cutter.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of air-flotation electric spindle with speed measuring function, it is characterised in that including body, axle core component, Power Component, aluminium water
Set, cylinder, upper bearing (metal) component, lower bearing component, thrust bearing assembly and cover plate assembly；
The body is cavity structure, and air inlet main channel and return-air are in axial direction respectively arranged with the wall of the body
Passage；
The axle core component is arranged in the body, and it includes chuck section and rotating shaft section；The chuck section and the rotating shaft section
It is hollow structure；The shaft shoulder is provided with the chuck section；The top of the rotating shaft section is provided with some grooves that test the speed；The rotating shaft
The bottom matching of section is arranged and is fixed in the chuck section, and accepts with the shaft shoulder；
The Power Component includes edge copper rotor and stator module, and the edge copper rotor is embedded in the rotating shaft section, and its outer wall
It is concordant with the outer wall of the rotating shaft section；The stator module is arranged on the inwall of the body, and inlays copper rotor phase with described
Correspondence；
The upper bearing (metal) component, lower bearing component, thrust bearing assembly and cover plate assembly may be contained within the body, and successively
It is set in from top to bottom outside the axle core component；
Wherein, the upper bearing (metal) component is arranged at the top of the rotating shaft section, and is formed between first between the rotating shaft section
Gap；The top of the upper bearing (metal) component is provided with tachogenerator, and the tachogenerator is corresponding with the groove that tests the speed；Under described
Bearing assembly is arranged at the bottom of the rotating shaft section, and positioned at shaft shoulder top, the lower bearing component and the rotating shaft section
Between form the second gap, be formed with third space between the shaft shoulder；The thrust bearing assembly is arranged at the chuck
Duan Shang, and positioned at shaft shoulder lower section, the 4th gap is formed between the thrust bearing assembly and the shaft shoulder；The cover plate
Component is arranged at the bottom of the thrust bearing assembly；The aluminium water jacket is arranged at the top of the upper bearing (metal) component；The gas
Cylinder is arranged at the top of the aluminium water jacket, and the piston rod that it is arranged is through the aluminium water jacket and stretches in the rotating shaft section；
Air inlet, gas outlet and the first gas circuit are provided with the aluminium water jacket；It is provided with the upper bearing (metal) component and described
The second gas circuit that one gap communicates；Communicated with second gap, third space is provided with the lower bearing component
Three gas circuits；The 4th gas circuit communicated with the 4th gap is provided with the thrust bearing assembly；
The air inlet of the aluminium water jacket is connected with the inlet end of first gas circuit, the outlet side of first gas circuit with it is described enter
The inlet end connection of gas main channel；Second gas circuit, the 3rd gas circuit, the 4th gas circuit inlet end with the air inlet main channel
Connection, their outlet side connects with the return gas channel, and the return gas channel is connected with the gas outlet of the aluminium water jacket.
2. the air-flotation electric spindle with speed measuring function according to claim 1, it is characterised in that first gas circuit includes
First air intake duct and the first gas off-take；The air inlet of the aluminium water jacket, the first air intake duct and air inlet main channel are sequentially communicated；It is described
The outlet side of the first gas off-take connects with the return gas channel, and the return gas channel is connected with the gas outlet of the aluminium water jacket；
Second gas circuit includes some first horizontal communication holes and the second gas off-take being arranged on the upper bearing (metal) component；Institute
The inlet end for stating the first horizontal communication hole is connected with the air inlet main channel, and its outlet side connects with first gap；It is described
The inlet end of the second gas off-take is connected with first gap, and its outlet side connects with the return gas channel；
3rd gas circuit includes some second horizontal communication holes, the first vertical passage being arranged on the lower bearing component
With the 3rd gas off-take；The inlet end in the second horizontal communication hole is connected with the air inlet main channel, its outlet side and described
Two gaps connect；The inlet end of the first vertical passage is connected with the second horizontal communication hole, its outlet side with it is described
Third space is connected；The inlet end of the 3rd gas off-take is connected with second gap, third space, its outlet side and institute
State return gas channel connection；
4th gas circuit includes the second air intake duct, the second vertical passage and the 4th being arranged on the thrust bearing assembly
Gas off-take；The inlet end of second air intake duct is connected with the air inlet main channel, and its outlet side and described second is vertically ventilated
The inlet end connection in hole, the outlet side of the second vertical passage connects with the 4th gap；4th gas off-take
Inlet end is connected with the 4th gap, and its outlet side connects with the return gas channel.
3. the air-flotation electric spindle with speed measuring function according to claim 1, it is characterised in that in the body respectively
It is provided with first housing inlet channel, second housing inlet channel, the first backwater road and the second backwater road；
Water inlet, delivery port, the first inlet channel and the first water outlet are provided with the aluminium water jacket；
The first water channel is provided with the upper bearing (metal) component；
Copper sheathing is arranged with outside the stator module；It is interior on the copper sheathing to be provided with the second water channel；
The 3rd water channel is provided with the lower bearing component；
The 4th water channel is provided with the thrust bearing assembly；
The 5th water channel is provided with the cover plate assembly；
The water inlet end of first inlet channel is connected with the water inlet of the aluminium water jacket, and its water side intakes with the first housing
The water inlet end connection in road；The water side of the first housing inlet channel and second water channel, second housing inlet channel, the 3rd water
Road, the 4th water channel and the 5th water channel are sequentially communicated, the water side of the 5th water channel and the water inlet end of first backwater channel
Connection, the water side of first backwater channel is connected with the water inlet end of first water channel, the water outlet of first inlet channel
End is connected with the water inlet end in the second backwater road, the water inlet end of the water side in the second backwater road and first water outlet
Connection, the water side of first water outlet is connected with the delivery port of the aluminium water jacket.
4. the air-flotation electric spindle with speed measuring function according to claim 3, it is characterised in that first water channel,
Two water channels, the 3rd water channel, the 4th water channel and the 5th water channel are water annulus；
Annular spacer is provided with the copper sheathing；The annular spacer is arranged in second water channel, described second
Water channel is separated into the top water channel and bottom water channel of connection；
The upper bearing (metal) component includes the first overcoat and the first inner sleeve；The first overcoat matching is sheathed on outside the first inner sleeve；Institute
State and first annular water channel A is provided with the first overcoat, first annular water channel B is provided with first inner sleeve；First ring
Shape water channel A connects composition first water channel with the second water annulus B；
The lower bearing component includes the second overcoat and the second inner sleeve；The second overcoat matching is sheathed on outside the second inner sleeve；Institute
State and the 3rd water annulus A is provided with the second overcoat, in second inner sleeve the 3rd water annulus B is provided with；3rd ring
Shape water channel A connects composition the 4th water channel with the 3rd water annulus B.
5. the air-flotation electric spindle with speed measuring function according to claim 1, it is characterised in that also including chuck component,
The chuck component includes axle despot, disc spring and chuck；The chuck includes cylindrical portion and the conical section being sequentially connected；The taper
Section is provided with first annular oil storage tank to cave inward on cavity structure, and its outer wall；The axle despot is arranged at the rotating shaft section
It is interior, and positioned at the lower section of the piston rod；The bottom of the chuck section is formed with taper installing hole；The chuck cylindrical portion it is upper
Portion is arranged in the axle despot, and its conical section is arranged in the taper installing hole and extends downwardly from, and the first annular storage
Oil groove is relative with the inwall of the taper installing hole；The disc spring is sheathed in the cylindrical portion of the chuck, its top with it is described
The bottom connection of axle despot, its bottom is connected with the top surface of the chuck section.
6. the air-flotation electric spindle with speed measuring function according to claim 5, it is characterised in that the axle despot includes that axle is seized by force
Inner sleeve and axle despot's overcoat, axle despot's overcoat matching is set in outside the axle despot inner sleeve, and on the outer wall of axle despot's overcoat to
Sunken inside is provided with the second annular oil storage tank；Vent hole is provided with out in the cylindrical portion of the chuck；It is described go out vent hole from upper
To the cylindrical portion of chuck described in lower insertion, and communicate with the cavity of the conical section.
7. the air-flotation electric spindle with speed measuring function according to claim 1, it is characterised in that also including flux sleeve, institute
State flux sleeve to be arranged in the rotating shaft section, and it is relative with the edge copper rotor being set in outside the rotating shaft section.
8. the air-flotation electric spindle with speed measuring function according to claim 1, it is characterised in that if also including dry friction damping
Plug；Through hole is provided with the damping plug, the through hole includes inlet end and outlet side, and the internal diameter of the inlet end is more than described
The internal diameter of outlet side, and the afterbody of the outlet side expands outwardly to form horn chamber；It is the first horizontal communication hole, second horizontal
The damping plug is provided with passage, the first vertical passage and the second vertical passage.
9. the air-flotation electric spindle with speed measuring function according to claim 5, it is characterised in that the cover plate assembly includes
Cover board body and cover plate inner sleeve；The cover plate inner sleeve is arranged in the cover board body, and is sheathed on the conical section of the chuck
On, and the 5th gap is formed with and the conical section of the chuck between；5th gap along the chuck conical section with it is outer
Boundary axially communicates, and connects with the 4th gap.
10. the air-flotation electric spindle with speed measuring function according to claim 1, it is characterised in that connect on the piston rod
Piston head is connected to, the outer wall of the piston head caves inward and is provided with some annular grooves；It is all provided with some annular grooves
Sealing ring is equipped with, matching outside the sealing ring is arranged with plastic hoop.
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| CN201610912981.6A CN106563818B (en) | 2016-10-19 | 2016-10-19 | A kind of air-flotation electric spindle with speed measuring function |
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| CN201610912981.6A CN106563818B (en) | 2016-10-19 | 2016-10-19 | A kind of air-flotation electric spindle with speed measuring function |
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| CN107199352A (en) * | 2017-07-24 | 2017-09-26 | 东莞市科隆实业有限公司 | The air-flotation electric spindle of high stability |
| CN107262746A (en) * | 2017-08-02 | 2017-10-20 | 东莞市科隆实业有限公司 | The ultrasonic air-float electro spindle of high stability |
| CN107598193A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | Air-flotation electric spindle |
| 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 |
| CN108907839A (en) * | 2018-09-30 | 2018-11-30 | 深圳市兴旺达科技有限公司 | A kind of air-bearing automatic tool changer main shaft |
| CN109185588A (en) * | 2018-10-10 | 2019-01-11 | 北京遥感设备研究所 | A kind of gas circuit rotation joint structure of double layered stator structure |
| CN109262251A (en) * | 2018-11-06 | 2019-01-25 | 宜昌长机科技有限责任公司 | A kind of O-ring seals protection device for installing and assembly method |
| CN114700510A (en) * | 2022-03-21 | 2022-07-05 | 沈阳芯嘉科技有限公司 | High-speed air floatation main shaft driving system and method |
| WO2022178980A1 (en) * | 2021-02-25 | 2022-09-01 | 广州市昊志机电股份有限公司 | Motor spindle and drilling machine |
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| CN107199352A (en) * | 2017-07-24 | 2017-09-26 | 东莞市科隆实业有限公司 | The air-flotation electric spindle of high stability |
| CN107262746A (en) * | 2017-08-02 | 2017-10-20 | 东莞市科隆实业有限公司 | The ultrasonic air-float electro spindle of high stability |
| CN107598193A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | Air-flotation electric spindle |
| CN107598193B (en) * | 2017-09-20 | 2023-12-12 | 广州市昊志机电股份有限公司 | Air-float electric main shaft |
| 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 |
| CN108907839A (en) * | 2018-09-30 | 2018-11-30 | 深圳市兴旺达科技有限公司 | A kind of air-bearing automatic tool changer main shaft |
| CN109185588A (en) * | 2018-10-10 | 2019-01-11 | 北京遥感设备研究所 | A kind of gas circuit rotation joint structure of double layered stator structure |
| CN109185588B (en) * | 2018-10-10 | 2020-05-15 | 北京遥感设备研究所 | Gas circuit rotary joint structure with double-layer stator structure |
| CN109262251A (en) * | 2018-11-06 | 2019-01-25 | 宜昌长机科技有限责任公司 | A kind of O-ring seals protection device for installing and assembly method |
| WO2022178980A1 (en) * | 2021-02-25 | 2022-09-01 | 广州市昊志机电股份有限公司 | Motor spindle and drilling machine |
| CN114700510A (en) * | 2022-03-21 | 2022-07-05 | 沈阳芯嘉科技有限公司 | High-speed air floatation main shaft driving system and method |
| CN114700510B (en) * | 2022-03-21 | 2024-02-09 | 沈阳芯嘉科技有限公司 | High-speed air floatation main shaft driving system and method |
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