CN106334805B - Ultrasonic main shaft - Google Patents
Ultrasonic main shaft Download PDFInfo
- Publication number
- CN106334805B CN106334805B CN201610909476.6A CN201610909476A CN106334805B CN 106334805 B CN106334805 B CN 106334805B CN 201610909476 A CN201610909476 A CN 201610909476A CN 106334805 B CN106334805 B CN 106334805B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- piston
- shaft body
- pull rod
- shaft sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007667 floating Methods 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims description 49
- 239000000725 suspension Substances 0.000 claims description 47
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 39
- 229910002804 graphite Inorganic materials 0.000 claims description 39
- 239000010439 graphite Substances 0.000 claims description 39
- 238000001816 cooling Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 238000007514 turning Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000596 Oilite Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of ultrasonic main shafts, the ultrasonic main shaft includes main shaft sleeve (1), the main shaft body (2) being installed in rotation in the main shaft sleeve (1), the actuator for driving the main shaft body (2) to rotate and the ultrasonic cutter component for being mounted on the main shaft body (2) end, and the main shaft body (2) is installed in rotation in the main shaft sleeve (1) by air floating structure.Ultrasonic main shaft provided by the invention can effectively improve the precision of Ultrasonic machining.
Description
Technical field
The present invention relates to the ultrasonic main shafts used in high-precision numerical control machine tool technology field more particularly to a kind of lathe.
Background technique
Ultrasonic wave processing is in the liquid medium for having abrasive material or in dry grinding material, to generate abrasive material using the tool of ultrasonic vibration
Impact, rubbing down, hydraulic shock and resulting cavitation effect keep workpiece mutual to remove material, and using ultrasonic vibration
In conjunction with processing method.Because Ultrasonic machining technology is not only capable of processing the fragile metals material such as hard alloy, hardened steel, and it is more suitable
Nonconducting nonmetallic crisp and hard materials such as processing glass, ceramics, semiconductor, germanium and silicon wafer are closed, in firmly crisp equal difficult-to-machine materials
Processing aspect has biggish advantage, while these hard brittle materials have the characteristics that common material is incomparable, make it in engineering
It is in an increasingly wide range of applications.
Supersonic Vibration Turning is a kind of precision machining method, compared with common turning, its small, cutting temperature with cutting force
Outstanding advantages of deformation of low and workpiece is small, so as to effectively improve machining accuracy and reduce workpiece surface roughness, to be not easy
The difficult-to-machine material of grinding is provided with the process of vehicle generation mill.During the cutting process, the energy exported by supersonic generator
Amount drives lathe tool to generate high-frequency mechanical vibration through energy converter, amplitude transformer, to generate shear action to workpiece.
As the important component of ultrasonic wave lathe, ultrasonic main shaft has important influence to ultrasonic cutting, for example, patent
Document CN205362704U discloses a kind of ultrasonic main shaft.Although can effectively process hard crisp material using ultrasonic wave lathe
Material, but its machining accuracy is but difficult to high manufacturing accuracy required by meeting some products.
Summary of the invention
Inventor has found after furtheing investigate to existing ultrasonic main shaft, due to the main shaft of existing ultrasonic main shaft
Ontology, in order to improve the rigidity of support, when installing bearing, is needed to bearing pre-tightened, therefore main by roller bearings
Shaft body is usually gapless rotation, but the inner ring due to bearing, outer ring and rolling element inevitably have shape mistake
When having diameter difference between difference, especially rolling element, the centre of gyration of main shaft body will generate travelling.It is straight when existing between rolling element
When diameter difference, for each revolution, the centre of gyration just generates micro-shifting to main shaft body, after main shaft body rotates several circles, in revolution
The micro-shifting of the heart completes one cycle.The micro-shifting of the centre of gyration of main shaft body changes the relative position of workpiece and point of a knife, causes
Point of a knife generates low-frequency vibration, to affect the machining accuracy of ultrasonic main shaft.
On the basis of inventor's above-mentioned discovery, the present invention provides a kind of ultrasonic main shaft, can effectively improve ultrasound
The precision of processing.
To achieve the goals above, the present invention provides a kind of ultrasonic main shaft, the ultrasonic main shaft includes spindle shaft
The main shaft body that cover, is installed in rotation in the main shaft sleeve, the actuator for driving the main shaft body rotation and
It is mounted on the ultrasonic cutter component of the main shaft body end, the main shaft body is installed in rotation on by air floating structure
In the main shaft sleeve.
Preferably, the air floating structure includes the air suspension shaft sleeve being sleeved on the main shaft body, the air suspension shaft sleeve with
The main shaft sleeve is fixedly connected, and closed annular is formed between the inner wall of the air suspension shaft sleeve and the outer wall of the main shaft body
Space, the air suspension shaft sleeve use the material with micropore to make, and the micropore on the air suspension shaft sleeve is disposed radially, described
Multiple annular grooves are offered on the outer circumference surface of air suspension shaft sleeve, and air inlet and venthole are offered on the main shaft sleeve, it is described
Air inlet is connected to the annular groove on the outer circumference surface of the air suspension shaft sleeve, and the venthole is outer with the air suspension shaft sleeve
Periphery connection.
Preferably, the annular groove is arranged in parallel, and is linked together between the annular groove by translot, the cross
Slot is provided with the outer surface of the air suspension shaft sleeve.
Preferably, the air suspension shaft sleeve is graphite bushing.
Preferably, it is further fixed on axially position ring on the outer circumference surface of the main shaft body, on the main shaft sleeve also
It is fixedly installed with the first graphite positioning ring and the second graphite positioning ring, the first graphite positioning ring and the second graphite positioning ring
There are gap between inner wall and main shaft body, the axially position ring is located at the first graphite positioning ring and the positioning of the second graphite
Between ring, and two end faces of the axially position ring are contacted with the first graphite positioning ring and the second graphite positioning ring respectively.
Preferably, the actuator includes that the rotor being fixedly set on the main shaft body and the motor turn
Motor stator, the main shaft coolant jacket being sleeved on the motor stator and the electricity being sleeved on the main shaft coolant jacket of son cooperation
Machine coolant jacket offers coolant liquid into hole and coolant outlet, the outer surface of the main shaft coolant jacket on the motor coolant jacket
Cooling bath is offered, from the coolant outlet after the cooling bath can be flowed through into the coolant liquid that hole enters by the coolant liquid
Outflow.
Preferably, the cooling bath is twist arranged, and the motor coolant jacket and main shaft sleeve can by annular partition
It is removedly fixed and links together.
Preferably, the main shaft body is cylindrical, and pull rod, the drawing are slidably mounted in the main shaft body
Bar and the main shaft body are coaxially disposed, and one end of the pull rod is equipped with pulling claw, and the other end of the pulling claw is equipped with blind rivet,
The ultrasonic cutter component is mounted on blind rivet, is additionally provided on the pull rod so that the blind rivet is towards the pull rod direction
The other end of mobile elastic component, the pull rod stretches out outside the main shaft body, also installs pull rod on the motor coolant jacket
Actuator, the pull rod actuator can push the pull rod that the elastic force of the elastic component is overcome to move towards the direction of the blind rivet
Dynamic, when main shaft body rotation, the output shaft of the pull rod actuator is separated with the pull rod.
Preferably, the other end of the pull rod is fixedly installed with adjustment plate, and the adjustment plate is located at the main shaft body
Outside is arranged between the adjustment plate and the end of main shaft body in the elastic component, and the pull rod actuator includes piston
Cylinder body, the piston end cap for being mounted on the intracorporal piston of the piston cylinder and being mounted on the piston/cylinder, the piston/cylinder
Closed at one end, open at one end, offers through-hole on the closed end of the piston/cylinder, and the piston end cap closes the piston
The open end of cylinder body, stomata is offered on the piston end cap, and the piston includes being slidably mounted in the piston/cylinder
On piston only and the piston rod that is fixed on piston only, the piston rod can pass through the through-hole and push the drawing
Bar.
Preferably, the end of the main shaft body is also equipped with Circular gratings.
The present invention and the prior art the difference is that, ultrasonic main shaft provided by the invention by main shaft body and
Air floating structure is set between main shaft sleeve, and air floating structure forms one layer between main shaft body and main shaft sleeve has certain carrying
The lubrication air film of power and rigidity is suspended in main shaft body in main shaft sleeve by the supporting role of the air film, due to lubricating gas
The presence of film so that main shaft body and main shaft sleeve do not contact, thus main shaft body can rotate at high speed, and calorific value it is small,
Small, can to generate to avoid the micro-shifting due to the centre of gyration of main shaft body low-frequency vibration is worn, it is provided by the invention
Ultrasonic main shaft can effectively improve the precision of Ultrasonic machining.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the ultrasonic main shaft of embodiment provided by the invention；
Fig. 2 be ultrasonic main shaft shown in Fig. 1 a mode to cross-sectional view；
Fig. 3 is the enlarged view in Fig. 2 at A；
Fig. 4 is the enlarged view in Fig. 2 at B；
Fig. 5 is the structural schematic diagram of the air suspension shaft sleeve of ultrasonic main shaft shown in Fig. 1；
Fig. 6 be ultrasonic main shaft shown in Fig. 1 another mode to cross-sectional view；
Description of symbols:
1- main shaft sleeve；2- main shaft body；3- air suspension shaft sleeve；4- annular groove；5- air inlet；6- venthole；7- translot；8-
Axially position ring；9- the first graphite positioning ring；10- the second graphite positioning ring；13- rotor；14- motor stator；15- main shaft
Coolant jacket；16- motor coolant jacket；17- coolant liquid is into hole；18- coolant outlet；19- cooling bath；20- annular partition；21- is drawn
Bar；22- pulling claw；23- blind rivet；24- elastic component；25- pull rod actuator；26- adjustment plate；27- piston/cylinder；28- piston；29-
Piston end cap；30- stomata；31- Circular gratings；32- determines ring；33- rotating ring；34- annular convex platform.
Specific embodiment
The present invention is further described with embodiment with reference to the accompanying drawing.But the purposes of these exemplary embodiments and
Purpose is only used to enumerate the present invention, not constitutes any type of any restriction to real protection scope of the invention, more non-to incite somebody to action
Protection scope of the present invention is confined to this.
Some nouns of locality are defined in the present invention, and in the case where not being specified to the contrary, the used noun of locality is such as
" upper and lower, left and right " refer to what ultrasonic main shaft provided by the invention defined under normal usage, and with shown in attached drawing 2
Direction up and down it is consistent." inside and outside " refers to relative to inside and outside each components profile itself, such as the inside of main shaft sleeve
Or outside.These nouns of locality are to use in order to facilitate understanding, because without constituting limiting the scope of the invention.
In the present invention, when components are referred to as " fixation " on another components, it can directly another zero
On component, or there may also be components placed in the middle.When a components are considered as " connection " on another components,
It can be directly to another components or may be simultaneously present components placed in the middle.When a components are considered as
" installation " on another components, it, which can be, is directly installed on another components or may be simultaneously present placed in the middle zero
Component.
Firstly the need of explanation, in order to solve the above technical problem, the present invention provides ultrasonic main shaft pass through in master
Air floating structure is set between axis axle sleeve and main shaft body, allows main shaft body stable rotation at a high speed on main shaft sleeve.?
In this technology conception range, protection scope of the present invention is not limited to Fig. 1-specific detail structure shown in fig. 6, example
Such as, existing various structures appropriate can be used in the air floating structure.
Suitably with reference to shown in Fig. 1, Fig. 2, the ultrasonic main shaft of basic embodiment provided by the invention may include main shaft
Axle sleeve 1, the main shaft body 2 being installed in rotation in the main shaft sleeve 1, the drive for driving the main shaft body 2 to rotate
Moving part and the ultrasonic cutter component for being mounted on 2 end of main shaft body, the main shaft body 2 can be rotated by air floating structure
Ground is mounted in the main shaft sleeve 1.
After the ultrasonic main shaft that above-mentioned basic embodiment provides is mounted on lathe, pass through actuator driving spindle ontology
2 rotations, since air floating structure being arranged between main shaft body 2 and main shaft sleeve 1, air floating structure can be in main shaft body 2 and master
One layer of lubrication air film with certain bearing capacity and stiffness is formed between axis axle sleeve 1, and main shaft is made by the supporting role of the air film
Ontology 2 is suspended in main shaft sleeve 1, so that main shaft body 2 can rotate at high speed, and it can be to avoid due to main shaft body 2
The micro-shifting of the centre of gyration and the low-frequency vibration generated, while the ultrasonic cutter component being mounted on main shaft body 2 passes through ultrasound
Wave producer exports ultrasonic energy, and makes lathe tool generate high-frequency vibration through energy converter and amplitude transformer, to cut to workpiece
It cuts.
In the present invention, the air floating structure can use existing various appropriate configurations, for example, patent can be used
Air-bearing disclosed in document CN204387109U.
In a preferred embodiment of the present invention, as shown in Figure 2 and Figure 3, the air floating structure is described including being sleeved on
Air suspension shaft sleeve 3 on main shaft body 2, the air suspension shaft sleeve 3 are fixedly connected with the main shaft sleeve 1, the air suspension shaft sleeve 3 it is interior
Closed annular space is formed between wall and the outer wall of the main shaft body 2, the air suspension shaft sleeve 3 is using the material with micropore
It makes, the micropore on the air suspension shaft sleeve 3 is arranged radially (perpendicular to the direction of main shaft body axis), in the air suspension shaft sleeve
Multiple annular grooves 4 are offered on 3 outer circumference surface, and air inlet 5 and venthole 6, the air inlet are offered on the main shaft sleeve 1
Hole 5 is connected to the annular groove 4 on the outer circumference surface of the air suspension shaft sleeve 3, the venthole 6 and the air suspension shaft sleeve 3
Outer circumference surface connection.
Wherein, the materials such as porous graphite, Oilite bronze or porous ceramics can be used in the material with micropore, this
In invention, it is preferable to use the graphite bushings made by porous graphite for the air suspension shaft sleeve 3.
The air floating structure of above structure is relative to existing air floating structure, by opening on the outer circumference surface of air suspension shaft sleeve 3
If annular groove 4, and be connected to air inlet with annular groove 4, venthole 6 is connect with the outer circumference surface of air suspension shaft sleeve 3, can make by
The pressure-air that air inlet 5 enters is entered between air suspension shaft sleeve 3 and main shaft body 2 by the micropore on 4 slot bottom of annular groove
In annular space, and via the micropore on air suspension shaft sleeve 3, into the venthole 6 being connect with 3 outer circumference surface of air suspension shaft sleeve, and
It is discharged outside ultrasonic main shaft by venthole 6.It, can be in annular space since the micropore on air suspension shaft sleeve 3 is evenly distributed
Form uniform air film, and the length due to the length of the micropore for outlet of air suspension shaft sleeve 3 than the micropore for air inlet
It grows, therefore atmidometer is greater than intake resistance out, it is possible thereby to which being formed in annular space has certain bearing capacity and stiffness
Lubrication air film.Simultaneously because the air in annular space is flowing, the gas of flowing can be taken away since main shaft body 2 revolves
Then the heat generated, therefore can guarantee that main shaft body 2 stablizes rotation.
Further, in order to enable the gas of distribution is more uniform in annular space and guarantees the intensity of air suspension shaft sleeve 3,
Refering to what is shown in Fig. 5, the annular groove 4 is arranged in parallel, and is linked together between the annular groove 4 by translot 7, the cross
Slot 7 is provided with the outer surface of the air suspension shaft sleeve 3.
In the present invention, due to offering multiple annular grooves 4 on the outer circumference surface of air suspension shaft sleeve 3, reduce air bearing
The contact area of axle sleeve 3 and main shaft sleeve 1, simultaneously because needing to keep the permeability of the micropore on air suspension shaft sleeve 3, therefore air bearing
The fixed form of gluing cannot be used between axle sleeve 3 and main shaft sleeve 1, in order to which air suspension shaft sleeve 3 is fixed on spindle shaft securely
It puts on, it is preferable that the outer circumference surface of the inner hole of the main shaft sleeve 1 and the air suspension shaft sleeve 3 is circular conical surface, by being set as round
The main shaft sleeve 1 and air suspension shaft sleeve 3 of pyramidal structure can be such that main shaft sleeve 1 and air suspension shaft sleeve 3 is fitted close during installation, from
And guarantee the fastness of the two connection.
In the present invention, the axially position of the main shaft body 2 can pass through actuator (such as motor) Lai Shixian.
The main shaft body 2 realizes radial through air film and positions that axial direction can realize positioning by actuator.
In order to better ensure that 2 axially position of main shaft body, the stability of ultrasonic main shaft is improved, of the invention preferred
In embodiment, as shown in Figure 2 and Figure 3, it is further fixed on axially position ring 8 on the outer circumference surface of the main shaft body 2, in the master
The first graphite positioning ring 9 and the second graphite positioning ring 10,9 He of the first graphite positioning ring are also fixedly installed on axis axle sleeve 1
There are gap between the inner wall and main shaft body 2 of second graphite positioning ring 10, the axially position ring 8 is located at first graphite
Between positioning ring 9 and the second graphite positioning ring 10, and two end faces of the axially position ring 8 are positioned with the first graphite respectively
Ring 9 and the contact of the second graphite positioning ring 10.
Wherein the axially position ring 8 can be structure as a whole with the main shaft body 2, by carrying out to main shaft body 2
Machining is formed, and axially position ring 8 can also be fixed on main shaft body 2 by modes such as welding.For the ease of described
The fixation of one graphite positioning ring 9 and the second graphite positioning ring 10 on the main shaft sleeve 1, the axially position ring 8 are located at institute
The side of air suspension shaft sleeve 3 is stated, in the present embodiment, the axially position ring 8 is located at the left side of the air suspension shaft sleeve 3.
Left and right ends by the first graphite positioning ring 9 and the second graphite positioning ring 10 respectively with axially position ring 8 connects
The axial restraint of main shaft body 2 may be implemented in touching, improves the stability of ultrasonic main shaft work.Simultaneously because the first graphite is fixed
Position ring 9 and the second graphite positioning ring 10 are all made of graphite production, with self-lubricating property, therefore can reduce main shaft body 2
Frictional force when rotation between the first graphite positioning ring 9 and the second graphite positioning ring 10 and axially position ring 8.
In the present invention, the actuator be for driving spindle ontology 2 rotate, therefore can using it is various can be defeated
The driving structure of rotary motion out.
In order to enable the structure of ultrasonic main shaft provided by the invention is simple, compact, the operation is stable, it is preferable that with reference to figure
2, shown in Fig. 4, Fig. 5, the actuator includes the rotor 13 being fixedly set on the main shaft body 2 and the motor
Motor stator 14 that rotor 13 cooperates, the main shaft coolant jacket 15 that is sleeved on the motor stator 14 and to be sleeved on the main shaft cold
But the motor coolant jacket 16 on set 15, refering to what is shown in Fig. 6, offering coolant liquid on the motor coolant jacket 16 into hole 17 and cooling
Liquid portals 18, and the outer surface of the main shaft coolant jacket 15 offers cooling bath 19, the cooling entered by the coolant liquid into hole 17
Liquid flows out after capable of flowing through the cooling bath 19 from the coolant outlet 18.
In said structure, by the way that rotor 13 to be directly anchored on main shaft body 2, rotor 13 can be passed through
Directly main shaft body 2 is driven to rotate, therefore the occupied space of motor can be effectively saved.
Specifically, as shown in Fig. 2, the modes such as rotor 13 is connected by key fixedly are sleeved on the right side of main shaft body 2
Side, main shaft coolant jacket 15 are fixed by screws on annular partition 20, the main shaft sleeve 1 also by screw be fixed on annular every
On plate 20, so that motor coolant jacket 16 and main shaft sleeve 1 connect into an entirety, the main shaft coolant jacket 15 passes through close-fitting
The modes such as conjunction are fixedly inserted into motor coolant jacket 16, and the motor stator 14 is fixed in motor coolant jacket 16, so that motor
Rotor 13 and motor stator 14 form steadily electric machine structure.
The built-in motor structure that rotor 13 and motor stator 14 are formed at work, can generate more heat, be
The cooling for realizing built-in motor, in the main shaft coolant jacket 15 material production good using thermal conductivity, and in main shaft coolant jacket
Cooling bath 19 is set on 15, and the cooling bath 19 can use various forms appropriate, such as the cooling bath 19 is twist
Setting, coolant liquid (such as cooling water) enter the cooling bath 19 into hole 17 by the coolant liquid, take away built-in motor structure
Then the heat of generation is flowed out from the coolant outlet 18, the coolant liquid can be that is, described using the form circulated
Coolant liquid connects water cooling unit by fast inserting structure with coolant outlet 18 into hole 17, so as to realize circularly cooling effect.
As shown in Figure 1, the motor coolant jacket 16 and main shaft sleeve 1 are securely removably connected at by annular partition 20
Together, not only ease of assembly personnel install in this way, but also facilitate maintenance, are embodied everywhere humanized design theory and needs.
Externally, mechanism is simply beautiful for the ultrasonic main shaft, and structure is very distinct, in the premise for realizing function and technical indicator
Under, accomplish the beautyization of product, more can increase advantage for product.
In an embodiment in the present invention, the main shaft body 2 is cylindrical, can in the main shaft body 2
Pull rod 21 is slidably installed, the pull rod 21 is coaxially disposed with the main shaft body 2, and one end of the pull rod 21 is equipped with drawing
Pawl 22, the other end of the pulling claw 22 are equipped with blind rivet 23, and the ultrasonic cutter component is mounted on blind rivet 23, the pull rod
It is additionally provided on 21 so that elastic component 24 of the blind rivet 23 towards 21 direction of pull rod movement, the other end of the pull rod 21
It stretches out outside the main shaft body 2, pull rod actuator 25,25 energy of pull rod actuator is also installed on the motor coolant jacket 16
The pull rod 21 is enough pushed to overcome the elastic force of the elastic component 24 mobile towards the direction of the blind rivet 23, when the main shaft body
When 2 rotation, the output shaft of the pull rod actuator 25 is separated with the pull rod 21.
Wherein ultrasound knife tool component may include supersonic generator, knife handle, the energy converter being mounted on knife handle and
Amplitude transformer and the lathe tool connecting with amplitude transformer, wherein supersonic generator can be 33 He of rotating ring for being mounted on main shaft left end
With the rotating ring 33 cooperation be mounted on main shaft sleeve 1 determine ring 32, the rotating ring 33 or determine that magnetic sheet is installed on ring 32.It is described
Knife handle can select BT30 speciality knife handle, also select BT30 blind rivet with the blind rivet 23 of knife handle cooperation.
When needing replacing knife handle, the output shaft pushing drawing rod 21 of pull rod actuator 25 overcomes the elastic force of elastic component 24 to the left
It is mobile, so that the outer circumference surface of the taper of knife handle and the taper hole hole wall of 2 left end of main shaft body are detached from, then rotate knife handle
Knife handle is unloaded from blind rivet 23, then installs the knife handle of needs, after installing knife handle, the output shaft of pull rod actuator 25 contracts
It returns, under the action of 24 elastic force of elastic component, the pull rod 21 moves right, to drive pulling claw 22, blind rivet 23 and knife handle to the right
It is mobile, so that the fastening of knife handle.
In the present invention, the elastic component 24 can be capable of providing the elasticity of elastic force using compressed spring, extension spring etc.
Part, setting position also can according to need determination.
In order to enable ultrasonic main shaft structure provided by the invention is more reasonable, easy to assembly, it is preferable that the pull rod 21
The other end be fixedly installed with adjustment plate 26, the adjustment plate 26 is located at the outside of the main shaft body 2, in the elastic component 24
It is arranged between the adjustment plate 26 and the end of main shaft body 2.
Specifically, as shown in figure 4, the right end in pull rod 21 is fixedly installed with adjustment plate 26, the adjustment plate 26 passes through spiral shell
Mother's fastening, compressed spring is sleeved on pull rod 21 and stretches out on the part on 2 right side of main shaft body, and the both ends of compressed spring are pressed respectively
On the right side of main shaft body 2 and the left side of adjustment plate 26.In Fig. 4, Circular gratings are also equipped in the right end of main shaft body 2
31, to detect the rotation of main shaft body 2, since Circular gratings 31 are fixed with respect to main shaft body 2, described in Fig. 4
The left end of compressed spring can be pressed on Circular gratings 31.
In order to further ensure when the main shaft body 2 rotation, the right end of the pull rod 21 can be with pull rod actuator
25 output shaft separation, as shown in fig. 6, being fixed with annular convex platform 34 on pull rod 21, and installs the main shaft of pull rod 21
The inner hole of ontology 2 is stepped hole left large and right small, as the output shaft of pull rod actuator 25 retracts to the right, the annular convex platform 34
It can be pressed on the step of stepped hole, pull rod 21 is prevented to continue to move right, so that pull rod 21 and pull rod actuator
25 keep certain spacing.
In the present invention, the pull rod actuator 25 can use any driving device for capableing of linear movement output.
In a preferred embodiment of the invention, with reference to shown in Fig. 2, Fig. 4, the pull rod actuator 25 includes piston cylinder
Body 27, the piston 28 being mounted in the piston/cylinder 27 and the piston end cap 29 being mounted on the piston/cylinder 27, it is described
Piston/cylinder 27 is closed at one end, open at one end, and through-hole, the piston end cap are offered on the closed end of the piston/cylinder 27
29 close the open end of the piston/cylinders 27, and stomata 30 is offered on the piston end cap 29, and the piston 28 includes that can slide
The piston only being mounted on the piston/cylinder 27 dynamicly and the piston rod being fixed on piston only, the piston rod can
Across the through-hole and push the pull rod 21.
As shown in Figure 1, ultrasonic wave master provided by the invention can be made by using the pull rod actuator 25 of above structure
Axle construction is simple, volume is smaller.
New type ultrasonic main shaft provided by the invention can not only effectively improve the machining accuracy of product, decrease simultaneously
Pollution and noise.It has small in size, revolving speed height, and the high technical advantage of stability can be widely applied for ultrasonic wave processing neck
Domain.The ultrasonic main shaft can be used on high-precision numerical control lathe and small-sized drilling and milling center, and product not only can be improved
Quality, and the service life of cutter can also be extended, ensure the work of lathe stability and high efficiency rate.
The sequencing of embodiment of above is not only for ease of description, represent the superiority and inferiority of embodiment.
Finally, it should be noted that embodiment of above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Invention is explained in detail referring to aforementioned embodiments for pipe, those skilled in the art should understand that: its according to
It can so modify to technical solution documented by aforementioned each embodiment, or part of technical characteristic is equal
Replacement；And these are modified or replaceed, each embodiment technical solution of the present invention that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (8)
1. a kind of ultrasonic main shaft, the ultrasonic main shaft includes main shaft sleeve (1), is installed in rotation on the main shaft sleeve
(1) main shaft body (2) in, the actuator for driving the main shaft body (2) to rotate and the main shaft body (2) are mounted on
The ultrasonic cutter component of end, which is characterized in that the main shaft body (2) is installed in rotation on described by air floating structure
In main shaft sleeve (1), the main shaft body (2) is cylindrical, is slidably mounted with pull rod in the main shaft body (2)
(21), the pull rod (21) and the main shaft body (2) are coaxially disposed, and one end of the pull rod (21) is equipped with pulling claw (22),
The other end of the pulling claw (22) is equipped with blind rivet (23), and the ultrasonic cutter component is mounted on blind rivet (23), the drawing
It is additionally provided on bar (21) so that elastic component (24) of the blind rivet (23) towards the movement of the pull rod (21) direction, the pull rod
(21) the other end stretches out main shaft body (2) outside, and pull rod actuator (25) can push the pull rod (21) to overcome institute
The elastic force for stating elastic component (24) is mobile towards the direction of the blind rivet (23), and annular convex platform (34) are fixed on pull rod (21),
And the inner hole for installing the main shaft body (2) of pull rod (21) is stepped hole left large and right small, when the main shaft body (2) are revolved
When turning, the output shaft of the pull rod actuator (25) is separated with the pull rod (21), and the annular convex platform (34) is pressed in institute
It states on the step of stepped hole；
The air floating structure includes the air suspension shaft sleeve (3) being sleeved on the main shaft body (2), the air suspension shaft sleeve (3) and institute
It states main shaft sleeve (1) to be fixedly connected, the inner hole of the main shaft sleeve (1) and the outer circumference surface of the air suspension shaft sleeve (3) are circular cone
Face；Closed annular space, the gas are formed between the inner wall of the air suspension shaft sleeve (3) and the outer wall of the main shaft body (2)
Floating axle set (3) is made of the material with micropore, and the micropore on the air suspension shaft sleeve (3) is disposed radially, in the air bearing
It is offered on the outer circumference surface of axle sleeve (3) multiple annular grooves (4), offers air inlet (5) and outlet on the main shaft sleeve (1)
Hole (6), the air inlet (5) are connected to the annular groove (4) on the outer circumference surface of the air suspension shaft sleeve (3), the outlet
Hole (6) is connect with the outer circumference surface of the air suspension shaft sleeve (3).
2. ultrasonic main shaft according to claim 1, which is characterized in that the annular groove (4) is arranged in parallel, and described
It is linked together between annular groove (4) by translot (7), the translot (7) is provided with the outer surface of the air suspension shaft sleeve (3).
3. ultrasonic main shaft according to claim 1, which is characterized in that the air suspension shaft sleeve (3) is graphite bushing.
4. ultrasonic main shaft according to claim 1, which is characterized in that on the outer circumference surface of the main shaft body (2) also
Axially position ring (8) are fixed with, the first graphite positioning ring (9) and the second stone are also fixedly installed on the main shaft sleeve (1)
Between the inner wall and main shaft body (2) of black positioning ring (10), the first graphite positioning ring (9) and the second graphite positioning ring (10)
There are gap, the axially position ring (8) between the first graphite positioning ring (9) and the second graphite positioning ring (10),
And two end faces of the axially position ring (8) connect with the first graphite positioning ring (9) and the second graphite positioning ring (10) respectively
Touching.
5. ultrasonic main shaft according to claim 1, which is characterized in that the actuator includes being fixedly set in the master
The motor stator (14) of rotor (13) and the rotor (13) cooperation in shaft body (2) is sleeved on the motor
Main shaft coolant jacket (15) on stator (14) and the motor coolant jacket (16) being sleeved on the main shaft coolant jacket (15), the electricity
Coolant liquid is offered on machine coolant jacket (16) into hole (17) and coolant outlet (18), the outer surface of the main shaft coolant jacket (15)
Cooling bath (19) are offered, from institute after the cooling bath (19) can be flowed through into the coolant liquid that hole (17) enter by the coolant liquid
State coolant outlet (18) outflow.
6. ultrasonic main shaft according to claim 5, which is characterized in that the cooling bath (19) is twist arranged, institute
Motor coolant jacket (16) and main shaft sleeve (1) is stated to be securely removably connected at together by annular partition (20).
7. ultrasonic main shaft according to claim 1, which is characterized in that the other end of the pull rod (21) is fixedly installed with
Adjustment plate (26), the adjustment plate (26) are located at the outside of the main shaft body (2), are arranged in the elastic component (24) described
Between adjustment plate (26) and the end of main shaft body (2), the pull rod actuator (25) includes piston/cylinder (27), is mounted on institute
The piston end cap (29) stating the piston (28) in piston/cylinder (27) and being mounted on the piston/cylinder (27), the piston cylinder
Body (27) is closed at one end, open at one end, and through-hole, the piston end cap are offered on the closed end of the piston/cylinder (27)
(29) open end of the piston/cylinder (27) is closed, offers stomata (30), the piston on the piston end cap (29)
It (28) include the piston only that is slidably mounted on the piston/cylinder (27) and the piston rod being fixed on piston only,
The piston rod can pass through the through-hole and push the pull rod (21).
8. ultrasonic main shaft according to claim 1, which is characterized in that the end of the main shaft body (2) is also equipped with
Circular gratings (31).
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| CN201610909476.6A CN106334805B (en) | 2016-10-19 | 2016-10-19 | Ultrasonic main shaft |
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| CN201610909476.6A CN106334805B (en) | 2016-10-19 | 2016-10-19 | Ultrasonic main shaft |
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| CN106334805B true CN106334805B (en) | 2019-08-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108942656A (en) * | 2018-07-25 | 2018-12-07 | 珠海桑贝思精密科技有限公司 | A kind of rotating machinery and sander of high-effective water-proof performance |
| CN109108390B (en) * | 2018-08-31 | 2020-11-17 | 广州每通自动化设备有限公司 | Three-station deburring machining method |
| JP6757837B1 (en) * | 2019-08-30 | 2020-09-23 | 株式会社高田工業所 | Support structure of ultrasonic resonator and ultrasonic vibration processing equipment |
| CN113523913B (en) * | 2021-07-12 | 2022-03-25 | 长春理工大学 | Ultrasonic energy beam-assisted high-efficiency low-damage ultra-precise polishing device and method |
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| CN106334805A (en) | 2017-01-18 |
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