CN107716953A - A kind of high-speed motorized spindles of embedded cooling air unit - Google Patents
A kind of high-speed motorized spindles of embedded cooling air unit Download PDFInfo
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- CN107716953A CN107716953A CN201711154863.4A CN201711154863A CN107716953A CN 107716953 A CN107716953 A CN 107716953A CN 201711154863 A CN201711154863 A CN 201711154863A CN 107716953 A CN107716953 A CN 107716953A
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- air
- main shaft
- cooling air
- shaft shell
- hollow chamber
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- 238000001816 cooling Methods 0.000 title claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 52
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 10
- 238000005553 drilling Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002173 cutting fluid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Classifications
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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
-
- 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
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- 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
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Turning (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention provides a kind of high-speed motorized spindles of embedded cooling air unit, including spindle main body, main shaft shell and cooling air unit, and spindle main body and cooling air unit are inside main shaft shell；Main shaft shell side is provided with air intake, and main shaft shell lower end is vertically provided with air outlet；Cooling air unit is sheathed on spindle main body, cooling air unit includes hollow chamber, hollow chamber bottom is provided with fin, upper end of the fin away from air intake side is provided with ball recess, hollow chamber is divided into mixed gas chamber and minor air cell by fin, fin upper end communicates with forming air slot, mixed gas chamber at the top of hollow chamber with air intake；Air slot is connected by cool air hose with air outlet pipeline, and hollow chamber is provided with hot-air mouth, and hot-air mouth communicates with outside air.Cold wind is low temperature compression gas or low temperature CO2Or supercritical CO2Or low temperature nitrogen.Electro spindle good cooling results of the present invention, are advantageous to chip removal, are not easy broken needle.
Description
Technical field
The present invention relates to a kind of drilling equipment, more particularly to a kind of high-speed motorized spindles of embedded cooling air unit.
Background technology
In PCB capillary processing, because the friction in drilling process between cutter and workpiece can produce substantial amounts of heat,
Although chip can take away the heat of part, still need to increase cooling device secondary process.If do not cooled down, it will to processing hole
Quality, the life-span of machining accuracy and drill point etc. cause many detrimental effects.
Current Major Cooling Methods have cutting fluid cooling and the cooling of low-temperature cold wind technology.It is higher cost to be present in cutting fluid,
Pollute environment, it is harmful the deficiencies of.And low-temperature cold wind technology is then because having easy to use, positive effect, cost is low, environmental protection
The advantages that and it is commonly used.
But in the prior art, low-temperature cold wind technology mainly adjusts eject position and injection direction to realize by cold air blasting gun
The cooling of designated area assigned direction.Therefore this method has the following disadvantages：（1）It is both needed to artificial fixed before each use and adjusts
Position and direction, if position and direction deviation is excessive, that is, drilling effect is had a strong impact on, especially multiple cold air blasting guns are used cooperatively
When it is increasingly complex, therefore the requirement to skilled worker is higher.（2）By experimental studies have found that, when cold wind injection direction and drill point
When axial direction is angled, easily causes drill point and radial vibration occurs because radial force is uneven, influence borehole accuracy very
To causing the breaking of rod.And when cold wind gas injection direction and axially in parallel drill point, not only cooling effect is preferable, but also promotes to arrange
Bits, be advantageous to improve drilling quality the most and improve the drill point life-span, but existing sub-cooled technology equipment therefor is adjusted out
The difficulty of the direction is quite big.Therefore cryogenic gas injection direction how is controlled to be allowed to turn into influence parallel to drill point axial direction
An important factor for low-temperature cold wind technology application effect.
The content of the invention
The present invention in order to solve the above technical problems, provide a kind of high-speed motorized spindles of embedded cooling air unit,
Technical scheme is realized by herein below
A kind of high-speed motorized spindles of embedded cooling air unit, including spindle main body, main shaft shell and cooling air unit, spindle main body and
Cooling air unit is inside main shaft shell；Main shaft shell side is provided with air intake, and main shaft shell lower end is vertically provided with air outlet；It is cold
Wind apparatus is sheathed on spindle main body, and cooling air unit includes hollow chamber, and hollow chamber bottom is provided with fin, and fin is away from entering
The upper end of gas port side is provided with ball recess, and hollow chamber is divided into mixed gas chamber and minor air cell by fin, on fin
End communicates with forming air slot, mixed gas chamber at the top of hollow chamber with air intake；Air slot passes through cool air hose and air outlet
Pipeline connects, and hollow chamber is provided with hot-air mouth, and hot-air mouth communicates with outside air.
Gas blasts mixed gas chamber by air intake, and gas passes through the air slot that area reduces, and gas pressure is drastically
Increase is so as to cause temperature to rise, and high pressure, high-temperature gas come minor air cell, are influenceed by ball recess, and air-flow is in minor air cell
Rotate at a high speed, outer ring gas one is up to 2,000,000 turns per minute of speed rotation, and the gas of inner ring is reversely revolved with same speed
Turn, heat exchange occurs for vortex Internal and external cycle air, so that the center sharp temperature drop of vortex, inner ring cryogenic gas is to sinking
Drop flows to air outlet discharge from cool air hose, and high-temperature gas is discharged by hot-air mouth, and cryogenic gas purges vertically downward, with main shaft master
Body axial direction is consistent, reduces the radial direction vibrations of drill point in spindle main body, improves machining accuracy, have and utilize chip removal.Improve drill point
Life-span, embedded saving space is easy to operation, overcomes the shortcomings of external cold air blasting gun space-consuming is big, and before using no longer
Need skilled worker to carry out to cold wind injection apparatus strict and accurately install, and completely avoid because location and installation is inaccurate
And causing the breaking of rod, drilling is of poor quality, or even phenomena such as generation waste product.
Preferably, the inwall of the inwall of hollow chamber and/or cool air hose is provided with thermal insulation layer.
Heat transfer, and high pressure gas will not occur with spindle main body for the setting of thermal insulation layer, the gas heat exchange in cooling air unit
Body does not interfere with the normal work of spindle main body, and electro spindle job stability is high.
Preferably, spindle main body includes spindle motor, central principal axis and air bearing, the output shaft of spindle motor and center
Main shaft connects, and spindle motor can drive central principal axis to rotate, and air bearing is sheathed on the output shaft of spindle motor, and main shaft shell is set
There is bearing air supply opening, bearing air supply opening is connected with air bearing pipeline.
By setting air bearing, ensure the smooth rotation of central principal axis.
Preferably, in addition to tool changing device, tool changing device Pneumatic tool-changing apparatus include piston, spring, push rod, guide sleeve,
Push rod and butterfly spring, piston rod upper end and main shaft shell form compression chamber, and main shaft shell is provided with piston and push rod
Upper end is connected, and the lower end of push rod is connected through the output axis center of spindle motor with push rod upper end, push rod and spindle motor it is defeated
Shaft leaves gap；Guide sleeve, butterfly spring are sheathed on outside push rod, and butterfly spring upper end offsets with guide sleeve lower end, center
Main shaft includes collet and drill point, and collet is sheathed on drill point, and main shaft shell lower end center is provided with mounting hole, collet
It is interference fitted with mounting hole, push rod lower end and collet upper-end contact.
Compression air supply opening is provided with by main shaft shell, compression air supply opening communicates with compression chamber, from compression air admission hole supply
Air, decline piston, piston promotes push rod driving guide sleeve very push rod to deform disk spring, so as to promote under collet
Move, so as to unclamp drill point, carry out tool changing, shed the pressure of compression chamber, tool changing device resets, and tool changing finishes, exchanging knives process letter
It is single quick.
Preferably, mounting hole is round table-like.
Mounting hole is round table-like, i.e., up big and down small, collet declines, and is advantageous to the release of drill point, tool changing is easier.
Preferably, cool air hose is round table-like for half, and the isosceles trapezoid section inclination angle on vertical direction is 65 °~85 °.
Cool air hose is smaller closer to air outlet diameter, increases the stream pressure of Cryogenic air, increases cooling range, improves cold
But effect.
Preferably, air outlet is 6~12, and air outlet is with the axis annular spread of central principal axis.
The air outlet of annular spread ensures that cryogenic gas is uniformly distributed in drill point surrounding, ensures cooling effect.
Preferably, it is provided with temperature sensor in cool air hose.
By temperature sensor detection temperature, chilling temperature can flexibly be controlled by controlling the air pressure of air intake, simple to operate
It is convenient.
Preferably, cold wind is low temperature compression gas or low temperature CO2Or supercritical CO2Or low temperature nitrogen.
Beneficial effects of the present invention：
1. the present invention provides a kind of high-speed motorized spindles of embedded cooling air unit, gas blasts gaseous mixture body cavity by air intake
Room, gas pass through the air slot that area reduces, and gas pressure increased dramatically so as to cause temperature to rise, and high pressure, high-temperature gas come
To minor air cell, influenceed by ball recess, air-flow is up to 2,000,000 turns per minute in vortex indoor high-speed rotation, outer ring gas one
Speed rotation, the gas of inner ring reversely rotates with same speed, and heat exchange occurs for vortex Internal and external cycle air, so that vortex
Center sharp temperature drop, inner ring cryogenic gas downwards sedimentation from cool air hose flow to air outlet discharge, high-temperature gas pass through
Hot-air mouth is discharged, and cryogenic gas purges vertically downward, consistent with spindle main body axial direction, reduces the footpath of drill point in spindle main body
To vibrations, machining accuracy is improved, has and utilizes chip removal.The life-span of drill point is improved, embedded saving space is easy to operation, overcomes
The shortcomings of external cold air blasting gun space-consuming is big, and no longer to need skilled worker to carry out cold wind injection apparatus strict and smart using preceding
Accurate installation, and completely avoid and cause the breaking of rod because location and installation is inaccurate, drilling is of poor quality, or even to produce waste product etc. existing
As.
2. the present invention provides a kind of high-speed motorized spindles of embedded cooling air unit, the inwall of hollow chamber and/or cool air hose it is interior
Wall is provided with thermal insulation layer；Heat transfer will not occur with spindle main body for the setting of thermal insulation layer, the gas heat exchange in cooling air unit, and high
Body of calming the anger does not interfere with the normal work of spindle main body, and electro spindle job stability is high.
3. the present invention provides a kind of high-speed motorized spindles of embedded cooling air unit, being provided with compression by main shaft shell supplies
Mouthful, compression air supply opening communicates with compression chamber, from compression air admission hole supply air, declines piston, piston promotes push rod driving
Guide sleeve very push rod deforms disk spring, so as to promote collet to move down, so as to unclamp drill point, carries out tool changing, sheds pressure
The pressure of contracting chamber, tool changing device reset, and tool changing finishes, exchanging knives process simple and fast.
4. the present invention provides a kind of high-speed motorized spindles of embedded cooling air unit, mounting hole be it is round table-like, i.e., it is up big and down small,
Collet declines, and is advantageous to the release of drill point, tool changing is easier.
5. the present invention provides a kind of high-speed motorized spindles of embedded cooling air unit, cool air hose is got over closer to air outlet diameter
It is small, increase the stream pressure of Cryogenic air, increase cooling range, improve cooling effect.
It is adapted to use low temperature compression gas or low temperature CO 6. the present invention provides one kind2Or supercritical CO2Or low temperature nitrogen
The high-speed motorized spindles of cold working in progress.
Brief description of the drawings
The structural representation of the high-speed motorized spindles of cooling air unit is embedded in Fig. 1 specific embodiment of the invention；
Wherein：10- main shaft shells；101- air intakes；102- air outlets；103- bearing air supply openings；104- compresses air supply opening；201-
Fin；202- mixed gas chambers；203- minor air cells；204- air slots；205- cool air hoses；206- hot-air mouths；30- is heat-insulated
Layer；401- spindle motors；402- central principal axis；4021- collets；4022- drill points；403- air bearing；501- pistons；
502- push rods；503- guide sleeves；504- push rods；505- disk springs；506- compression chamber；60- temperature sensors.
Embodiment
As shown in figure 1, present embodiment provides a kind of high-speed motorized spindles of embedded cooling air unit, including main shaft master
Body, main shaft shell 10 and cooling air unit, spindle main body and cooling air unit are inside main shaft shell 10；The side of main shaft shell 10 is set
There is air intake 101, the lower end of main shaft shell 10 is vertically provided with air outlet 102；Cooling air unit is sheathed on spindle main body, cooling air unit bag
Hollow chamber is included, hollow chamber bottom is provided with fin 201, and upper end of the fin 201 away from the side of air intake 101 is provided with spherical
Hollow chamber is divided into mixed gas chamber 202 and minor air cell 203, the upper end of fin 201 and middle cavity by groove, fin 201
Ceiling portion forms air slot 204, and mixed gas chamber 202 communicates with air intake 101；Air slot 204 is by cool air hose 205 with going out
The pipeline connection of air port 102, hollow chamber are provided with hot-air mouth 206, and hot-air mouth 206 communicates with outside air；The inwall of hollow chamber
Thermal insulation layer 30 is provided with the inwall of cool air hose 205；Spindle main body includes spindle motor 401, central principal axis 402 and air bearing
403, the output shaft of spindle motor 401 is connected with central principal axis 402, and spindle motor 401 can drive central principal axis 402 to rotate, empty
Gas bearing 403 is sheathed on the output shaft of spindle motor 401, and main shaft shell 10 is provided with bearing air supply opening 103, bearing air supply opening 103
It is connected with the pipeline of air bearing 403；Also include tool changing device, tool changing device Pneumatic tool-changing apparatus includes piston 501, spring, pushed away
Bar 502, guide sleeve 503, push rod 504 and butterfly spring, the bar upper end of piston 501 forms compression chamber 506 with main shaft shell 10, main
Shaft housing 10 is connected provided with the lower end of piston 501 with the upper end of push rod 502, and the output of spindle motor 401 is run through in the lower end of push rod 502
Axis center is connected with the upper end of push rod 504, and the output shaft of push rod 502 and spindle motor 401 leaves gap；Guide sleeve 503, butterfly bullet
Spring is sheathed on outside push rod 504, and butterfly spring upper end offsets with the lower end of guide sleeve 503, and central principal axis 402 includes collet
4021 and drill point 4022, collet 4021 be sheathed on drill point 4022, the lower end center of main shaft shell 10 is provided with mounting hole, seamed folder
Set 4021 is interference fitted with mounting hole, the lower end of push rod 504 and the upper-end contact of collet 4021；Temperature is provided with cool air hose 205
Sensor 60.
Gas blasts mixed gas chamber 202 by air intake 101, and gas passes through the air slot 204 that area reduces, gas
Pressure increased dramatically so as to cause temperature to rise, and high pressure, high-temperature gas come minor air cell 203, are influenceed by ball recess, air-flow
Rotated at a high speed in minor air cell 203, outer ring gas one is up to 2,000,000 turns per minute of speed rotation, and the gas of inner ring is with identical
Velocity reversal's rotation, heat exchange occurs for vortex Internal and external cycle air, so that the center sharp temperature drop of vortex, inner ring are low
The sedimentation downwards of wet body flows to air outlet 102 from cool air hose 205 and discharged, and high-temperature gas is discharged by hot-air mouth 206, cryogenic gas
Purge vertically downward, it is consistent with spindle main body axial direction, the radial direction vibrations of drill point 4022 in spindle main body are reduced, improve processing
Precision, have and utilize chip removal.The life-span of drill point 4022 is improved, embedded saving space is easy to operation, overcomes external cold air blasting gun and accounts for
With space it is big the shortcomings of, and no longer need skilled worker to carry out strict to cold wind injection apparatus and accurately install using preceding, and
And completely avoid and cause the breaking of rod because location and installation is inaccurate, drilling is of poor quality, or even phenomena such as produce waste product.
Heat transfer, and gases at high pressure will not occur with spindle main body for the setting of thermal insulation layer 30, the gas heat exchange in cooling air unit
The normal work of spindle main body is not interfered with, electro spindle job stability is high.
By setting air bearing 403, ensure the smooth rotation of central principal axis 402.
Compression air supply opening 104 is provided with by main shaft shell 10, compression air supply opening 104 communicates with compression chamber 506, from compression
Air admission hole supplies air, declines piston 501, and piston 501 promotes push rod 502 to drive the very push rod 504 of guide sleeve 503 to make dish-shaped bullet
Spring 505 deforms, and so as to promote collet 4021 to move down, so as to unclamp drill point 4022, carries out tool changing, sheds compression chamber 506
Pressure, tool changing device resets, and tool changing finishes, exchanging knives process simple and fast.
By the detection temperature of temperature sensor 60, the air pressure of control air intake 101 can flexibly control chilling temperature, operate
It is simple and convenient.
As another embodiment of the present invention, mounting hole is round table-like.
Mounting hole is round table-like, i.e., up big and down small, collet 4021 declines, and is advantageous to the release of drill point 4022, tool changing
It is easier.
As another embodiment of the present invention, cool air hose 205 is half round table-like, the isosceles trapezoid section on vertical direction
Inclination angle is 65 °~85 °.
Cool air hose 205 is smaller closer to the diameter of air outlet 102, increases the stream pressure of Cryogenic air, increases cooling range,
Improve cooling effect.
As another embodiment of the present invention, air outlet 102 is 6~12, and air outlet 102 is with central principal axis 402
Axis annular spread.
The air outlet 102 of annular spread ensures that cryogenic gas is uniformly distributed in the surrounding of drill point 4022, ensures cooling effect.
As another embodiment of the present invention, air intake 101 is usually one, and a diameter of 10-20mm, too small then
Supply deficiency, cooling effect is bad, and too big then main shaft carrying pressure is excessive.
When high pressure draught is by air slot 204, temperature is caused to rise because pressure increased dramatically, then air-flow
Entrained temperature is taken away by heat transfer by fin 201.The height of air slot 204 is 3-6mm；The thickness of fin 201
It is excessive for 3-5mm, the too thin reduction radiating effect of fin 201, too thick space-consuming.
It is the wherein specific implementation of the present invention above, its description is more specific and detailed, but can not therefore manage
Solve as the limitation to the scope of the claims of the present invention.For the person of ordinary skill of the art, present inventive concept is not being departed from
Under the premise of, various modifications and improvements can be made, these obvious alternative forms belong to protection scope of the present invention.
Claims (9)
- A kind of 1. high-speed motorized spindles of embedded cooling air unit, it is characterised in that：Filled including spindle main body, main shaft shell and cold wind Put, spindle main body and cooling air unit are inside main shaft shell；Main shaft shell side is provided with air intake, and main shaft shell lower end is vertical Provided with air outlet；Cooling air unit is sheathed on spindle main body, and cooling air unit includes hollow chamber, and hollow chamber bottom is provided with radiating Piece, upper end of the fin away from air intake side are provided with ball recess, fin by hollow chamber be divided into mixed gas chamber and Minor air cell, fin upper end communicate with forming air slot, mixed gas chamber at the top of hollow chamber with air intake；Air slot passes through Cool air hose is connected with air outlet pipeline, and hollow chamber is provided with hot-air mouth, and hot-air mouth communicates with outside air.
- 2. the high-speed motorized spindles of embedded cooling air unit according to claim 1, it is characterised in that：The inwall of hollow chamber And/or the inwall of cool air hose is provided with thermal insulation layer.
- 3. the high-speed motorized spindles of embedded cooling air unit according to claim 1, it is characterised in that：Spindle main body includes master Spindle motor, central principal axis and air bearing, the output shaft of spindle motor are connected with central principal axis, and spindle motor can drive center master Axle rotates, and air bearing is sheathed on the output shaft of spindle motor, and main shaft shell is provided with bearing air supply opening, bearing air supply opening and air Bearing pipeline connects.
- 4. the high-speed motorized spindles of embedded cooling air unit according to claim 3, it is characterised in that：Also include tool changing to fill Put, tool changing device Pneumatic tool-changing apparatus includes piston, push rod, guide sleeve, push rod and butterfly spring, piston rod upper end with outside main shaft Hull shape is into compression chamber, and main shaft shell is provided with piston and the upper end of push rod connects, and the lower end of push rod is through spindle motor Output axis center is connected with push rod upper end, and the output shaft of push rod and spindle motor leaves gap；Guide sleeve, butterfly spring are sheathed on Outside push rod, butterfly spring upper end is offseted with guide sleeve lower end, and central principal axis includes collet and drill point, and collet is arranged In drill point, main shaft shell lower end center is provided with mounting hole, and collet is interference fitted with mounting hole, push rod lower end and collet Upper-end contact；Main shaft shell is provided with compression air supply opening, and compression air supply opening communicates with compression chamber.
- 5. the high-speed motorized spindles of embedded cooling air unit according to claim 4, it is characterised in that：Mounting hole is round platform Shape.
- 6. the high-speed motorized spindles of embedded cooling air unit according to claim 1, it is characterised in that：Cool air hose is semicircle Mesa-shaped, the isosceles trapezoid section inclination angle on vertical direction are 65 °~85 °.
- 7. the high-speed motorized spindles of embedded cooling air unit according to claim 1, it is characterised in that：Air outlet is 6~12 It is individual, air outlet with the axis annular spread of central principal axis,.
- A kind of 8. high-speed motorized spindles of embedded cooling air unit according to claim 1, it is characterised in that：Set in cool air hose There is temperature sensor.
- 9. cold wind according to claim 1 is low temperature compression gas or low temperature CO2Or supercritical CO2Or low temperature nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154863.4A CN107716953B (en) | 2017-11-20 | 2017-11-20 | Super-high-speed electric spindle with embedded cold air device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154863.4A CN107716953B (en) | 2017-11-20 | 2017-11-20 | Super-high-speed electric spindle with embedded cold air device |
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| Publication Number | Publication Date |
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| CN107716953A true CN107716953A (en) | 2018-02-23 |
| CN107716953B CN107716953B (en) | 2023-11-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170735A (en) * | 2019-05-07 | 2019-08-27 | 湖南坤鼎数控科技有限公司 | A kind of friction-welding machine main axis fixing device |
| US20200398396A1 (en) * | 2019-06-18 | 2020-12-24 | Disco Corporation | Processing apparatus |
| US11602815B2 (en) | 2019-01-31 | 2023-03-14 | Fusion Coolant Systems, Inc. | Machining systems utilizing supercritical fluids |
| US11642731B2 (en) | 2019-05-10 | 2023-05-09 | Fusion Coolant Systems, Inc. | Tooling for machining systems utilizing supercritical fluids |
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| CN110170735A (en) * | 2019-05-07 | 2019-08-27 | 湖南坤鼎数控科技有限公司 | A kind of friction-welding machine main axis fixing device |
| US11642731B2 (en) | 2019-05-10 | 2023-05-09 | Fusion Coolant Systems, Inc. | Tooling for machining systems utilizing supercritical fluids |
| US20200398396A1 (en) * | 2019-06-18 | 2020-12-24 | Disco Corporation | Processing apparatus |
| US11845154B2 (en) * | 2019-06-18 | 2023-12-19 | Disco Corporation | Processing apparatus |
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