CN208696315U - A kind of air bearing electric main-shaft - Google Patents
A kind of air bearing electric main-shaft Download PDFInfo
- Publication number
- CN208696315U CN208696315U CN201821254150.5U CN201821254150U CN208696315U CN 208696315 U CN208696315 U CN 208696315U CN 201821254150 U CN201821254150 U CN 201821254150U CN 208696315 U CN208696315 U CN 208696315U
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- rotor
- bearing
- rear end
- cylinder
- collet
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Abstract
The utility model discloses a kind of air bearing electric main-shafts, including housing, housing includes front cover, steel bushing, adapter ring and back seat, rotor is set in the middle part of axis body, for the primary pivot component of axis body, rotor front end periphery is equipped with dustband, thrust plate, shim and fore bearing, and elastic slice and wave handle are equipped with inside rotor front end, and the outer diameter of rotor rear end is equipped with mouse cage；Rear bearing is set to steel bushing rear end, and one end is equipped with rear bearing positioning ring, and the other end is equipped with rear axle bearing ring；Coil is sheathed on rotor tail end；Mandril is set in rotor, and front end is connected with wave handle, and rear end passes through back seat and extends to its rear end；Collet is set to rotor front end, and its rear end extends in elastic slice, and collet rear end is equipped with collet connecting rod, collet connecting rod one end connecting clip, and the other end connects wave handle；Cylinder is set to rear base rear end；Piston is set in cylinder；The utility model has the characteristics that compact-sized, frictional force and with small vibration, it can be achieved that relatively high power, high revolving speed, high-precision and high stability Milling Process.
Description
Technical field
The utility model relates to Precision Machining electro spindle technical field more particularly to a kind of air bearing electric main-shafts.
Background technique
Air bearing is to use air as the sliding bearing of lubricant.Because air is smaller than oily viscosity, high temperature resistant, no dirt
Dye, thus can be used in high speed machines, instrument and radioactive device.
The bearing of existing air bearing spindles uses Ceramic Composite ball bearing, and revolving speed is low, and bloom albronze table is not achieved
Face finish, machining accuracy is low, is not able to satisfy high-rate wireless LAN demand.
Utility model content
Purpose of the utility model is to solve disadvantage existing in the prior art, provide a kind of compact-sized, again
Amount is light, inertia is small, frictional force and it is with small vibration the features such as, it can be achieved that relatively high power, the milling of high revolving speed, high-precision and high stability
Processing.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of air bearing electric main-shaft, including axis body, axis body include
Housing, the housing include front cover, steel bushing and back seat, are additionally provided with adapter ring between the steel bushing and back seat,
Rotor is set in the middle part of axis body, is the primary pivot component of axis body, and the rotor front end passes through the front cover and is exposed to axis
Outside body, rotor front end periphery is successively arranged with dustband, thrust plate, shim and fore bearing, and the fore bearing card is set
Several elastic slices and wave handle are equipped with inside the steel bushing front end, the rotor front end, the opposite series connection of the elastic slice triplets is set
It sets；It is arranged with mouse cage on the outer diameter of the rotor rear end, and is firmly connected with it；
Rear bearing is set to steel bushing rear end, and rear bearing one end is equipped with rear bearing positioning ring, and the other end is equipped with rear axle bearing ring,
The rear bearing is fixed by rear bearing positioning ring and rear axle bearing ring；
Coil is sheathed on the rotor tail end, and is built in inside the back seat inner hole, is arranged in the coil periphery
Coil copper sheathing, the coil copper sheathing are placed equipped with sink outside；
Mandril is set in the rotor, and front end is connected with wave handle, and rear end passes through the back seat and extends to its rear end；
Collet is set to the rotor front end, and its rear end extends in the elastic slice, and the collet rear end is additionally provided with collet company
Extension bar, collet connecting rod one end connecting clip, the other end connect wave handle, the collet interior clamping cutter, cutter front end
It extends to outside main shaft；
Cylinder is set to the rear base rear end, and the cylinder rear end is additionally provided with cylinder top cover；
Piston is set in the cylinder, and the piston includes first piston and second piston, the mandril rear end and first
Piston centre is fixed, and by gas pressure, pushes wave handle to axis body front end.
Further, there are two the cylinder is set, there are three piston is set, the piston is set with the interlaced overlapping of cylinder
It sets.
Further, the cylinder is equipped with cylinder top cover, and cylinder top cover is hollow structure.
Further, the back seat is equipped with aqueous vapor connector and power connection.
Further, two end surface of steel bushing is equipped with water hole.
Compared with prior art, the utility model has the beneficial effects that using the rotor of high-speed air floatation rotation to copper, aluminium etc.
Non-ferrous metal carries out grinding bloom, PCB processing and forming, has the characteristics that compact-sized, inertia is small, frictional force is small and with small vibration,
Relatively high power, high revolving speed, high-precision and high stability Milling Process can be achieved.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model main shaft；
Fig. 2 is the structure diagram of the utility model main shaft.
In figure: 1 front cover, 2 steel bushings, 3 back seats, 31 aqueous vapor connectors, 32 power connections, 30 back seat copper sheathings, 4 adapter rings, 5 turns
Son, 6 dustbands, 7 thrust plates, 8 shims, 9 fore bearings, 10 elastic slices, 11 wave handles, 111 wave handle copper sheathings, 12 mouse cages, 13 rear bearings,
14 rear bearing positioning rings, 15 rear axle bearing rings, 151 insulating trips, 16 coils, 17 coil copper sheathings, 18 sinks, 19 mandrils, 20 collets,
21 collet connecting rods, 22 cutters, 23 cylinders, 24 cylinder top covers, 25 pistons, 251 first pistons, 252 second pistons.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Referring to Fig.1-2, a kind of air bearing electric main-shaft, including axis body, axis body include housing, and housing includes sequentially connected
Front cover 1, steel bushing 2 and back seat 3, front cover 1 are set to electro spindle front end, have the function of water proof and dust proof；Steel bushing 2 is the main part of main shaft
Point, two end surfaces are equipped with water hole, and the effect in water hole is the heat generated with bearing running and coil, while supporting other parts；Afterwards
Seat 3 is the main body load part of cylinder, and aqueous vapor connector 31 and power connection 32 are installed on back seat 3, and aqueous vapor connector 31 includes air inlet
Mouthful, inlet and outlet, 3 centre bore of back seat is interior to be equipped with back seat copper sheathing 30；Adapter ring 4 is additionally provided between steel bushing 2 and back seat 3,
Adapter ring 4 is the primary load bearing part for connecting steel bushing 2 and back seat 3, main to play support connection function.
Rotor 5, also known as central spindle are set in the middle part of axis body, are the primary pivot component of axis body, core functional components, by line
The electromagnetic field of circle drives, and when work, runs at high speed；5 front end of rotor pass through front cover 1 be exposed to outside axis body, 5 front end periphery of rotor according to
It is secondary to be arranged with dustband 6, thrust plate 7, shim 8 and fore bearing 9, it there are two dustband is set, is made, is prevented of plastics soft material
5 front ends of rotation stop are stuck, while playing dust-proof effect；Thrust plate 7 is also known as power plate, generates air blast when outside supplies
When, make 5 sustained suspension of rotor；Shim 8 is known as isolation ring, and air bearing up and down is isolated, and rotor flying disc floats in its space；Front axle
It holds 9 and is arranged in 2 front end of steel bushing, when outside supplies generation air-flow, and rotor 5 is made to suspend in air, play in supporting rotor positioning
The effect of heart rotation；Several elastic slices 10 and wave handle 11 are equipped with inside 5 front end of rotor, 10 triplets of elastic slice are opposite to be arranged in series,
Elastic slice 10 is also known as disc spring, and the utility model is arranged six, nine, 12 or 15, every triplets or six one group,
Predominantly pull rod provides contractility, and 11 periphery of wave handle is equipped with wave handle copper sheathing 111, mainly shields to wave handle；5 rear end of rotor
Outer diameter on be arranged with mouse cage 12, and be firmly connected with it, it is main that rotor 5 is driven to move.
Rear bearing 13 is set to 2 rear end of steel bushing, and rear bearing one end is equipped with rear bearing positioning ring 14, and the other end is equipped with rear axle pressure-bearing
Ring 15, rear bearing 13 is fixed by rear bearing positioning ring 14 and rear axle bearing ring 15, and rear bearing 13 plays in the positioning of supporting rotor 5
The heart, the rotor for the rotation that suspends, the effect of contactless support, front and back bearings are made of tin bronze material, have wear-resisting, hardness
Big mechanical property.
Coil 16 is sheathed on 5 tail end of rotor, and is built in inside 3 inner hole of back seat, and coil 16, which is powered, generates the induction of rotation
Electric current, the magnetic field of the cutting rotation of mouse cage 12 on rotor 5, driving rotor 5 rotate；It is placed outside coil 16 and is arranged with coil copper sheathing
17, coil copper sheathing 17 is placed outside equipped with sink 18, and coil copper sheathing 17 is used for fixed coil, and sink 18 primarily serves cooling coil 16
The heat of generation is equipped with insulating trip 151 between rear axle bearing ring 15 and coil 16.
Mandril 19 is set in rotor 5, and front end is connected with wave handle 11, and rear end extends to its rear end across back seat 3 and is fixed on gas
On cylinder, mandril 19 pushes up wave handle 11, moves forward and backward with cylinder, downwards opens collet 20 when top；Collet 20 is set to 5 front end of rotor,
Its rear end extends in elastic slice 10, and 20 rear end of collet is additionally provided with collet connecting rod 21,21 one end connecting clip 20 of collet connecting rod,
The other end connects wave handle 11, and clamping cutter 22 inside 20 front end of collet, collet connecting rod 21 connects the mistake of wave handle 11 and collet 20
Part is crossed, connection function is played, wave handle 11 is mainly used for compressing elastic slice by the power of mandril, while playing guiding role, and cutter 22 fills
It is sandwiched on collet 20, is directly contacted with workpieces processing surface, cutting workpiece.
Cylinder 23 is set to 3 rear end of back seat, and cylinder rear end is additionally provided with cylinder top cover 24, and cylinder is equipped with cylinder top cover, cylinder
Top cover 24 is that hollow structure is air inlet, and cylinder top cover 24 is screwed on cylinder lagging, is cylinder 23 by the air inlet on cylinder
Gas supply；Piston 25 is set in cylinder 23, and piston includes first piston 251 and second piston 252,19 rear end of mandril and first piston
231 centers are fixed, and by gas pressure, push wave handle 11 to axis body front end, control collet 20 is opened and closed；This practical preferred cylinder 23 is set
There are two, there are three piston 25 is set, piston 25 and the setting of the interlaced overlapping of cylinder 23.
The air bearing of the utility model is the bearing being play supporting role using aeroelastic potential energy, has very high warp
To with axial-rotation precision, due to not having Mechanical Contact, the degree of wear is preferably minimized, to guarantee precision stability；Air axis
It is lower to hold resistance, allows higher speed, and lower level of vibration can be kept simultaneously, rub the obstruction rotated to air bearing
Very small, so that power loss and heat generation are also very small, this enables rotor to run with high superficial velocity,
It mainly is used in High-speed engraving and milling bloom industry, suitable for the nonmetallic equal materials such as materials High-speed engraving and milling and copper, aluminium alloy of acrylic
High-speed grinding.
The application of air spindle, which provides smooth, accurate, repeatable movement, makes finished surface luminosity more preferably.With rolling
Pearl bearing spindle is different, and air bearing provides stable bearing hardness, it can be ensured that below the hard material surface processed
Partial damaged degree is minimum.Since hardness is by providing through bearing, uniform air stream, rotor is subjected to
, active force from outer load, it is stable in its rotation to be distributed in all the points, there is good table when grinding workpiece
Face luminosity.
In use, mainly providing power due to there is no Mechanical Contact, not using coolant liquid using air, extending bearing
Service life；Air bearing load force also with higher, high rigidity, can make up through to the biggish axis of axial radii
It holds.
The electro spindle of the utility model uses air bearing, and the built-in asynchronous high efficiency motor of three phase variable frequency is carried out by frequency converter
Variable speed control, maximum speed reach 80000rpm, and maximum power reaches 1.6kW, in use, using automatic tool changer mode,
Shank diameter range is 1~Φ of Φ 6, keeps milling range wider.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of air bearing electric main-shaft, including axis body, it is characterised in that: axis body includes
Housing, the housing include front cover, steel bushing and back seat, are additionally provided with adapter ring between the steel bushing and back seat,
Rotor is set in the middle part of axis body, is the primary pivot component of axis body, and the rotor front end passes through the front cover and is exposed to outside axis body
Portion, rotor front end periphery are successively arranged with dustband, thrust plate, shim and fore bearing, and the fore bearing is arranged in institute
Steel bushing front end is stated, several elastic slices and wave handle are equipped with inside the rotor front end, the elastic slice triplets are opposite to be arranged in series；Institute
It states and is arranged with mouse cage on the outer diameter of rotor rear end, and be firmly connected with it；
Rear bearing is set to steel bushing rear end, and rear bearing one end is equipped with rear bearing positioning ring, and the other end is equipped with rear axle bearing ring, described
Rear bearing is fixed by rear bearing positioning ring and rear axle bearing ring；
Coil is sheathed on the rotor tail end, and is built in inside the back seat inner hole, is arranged with coil in the coil periphery
Copper sheathing, the coil copper sheathing are placed equipped with sink outside；
Mandril is set in the rotor, and front end is connected with wave handle, and rear end passes through the back seat and extends to its rear end；
Collet is set to the rotor front end, and its rear end extends in the elastic slice, and the collet rear end is additionally provided with collet connection
Bar, collet connecting rod one end connecting clip, the other end connect wave handle, the collet interior clamping cutter, and cutter front end prolongs
It extends to outside main shaft；
Cylinder is set to the rear base rear end, and the cylinder rear end is additionally provided with cylinder top cover；
Piston is set in the cylinder, and the piston includes first piston and second piston, the mandril rear end and first piston
Center is fixed, and by gas pressure, pushes wave handle to axis body front end.
2. a kind of air bearing electric main-shaft according to claim 1, which is characterized in that there are two the cylinder is set, piston
If there are three, the piston and the interlaced overlapping of cylinder are arranged.
3. a kind of air bearing electric main-shaft according to claim 1, which is characterized in that the cylinder is equipped with cylinder top
Lid, cylinder top cover are hollow structure.
4. a kind of air bearing electric main-shaft according to claim 1, which is characterized in that the back seat is equipped with aqueous vapor connector
And power connection.
5. a kind of air bearing electric main-shaft according to claim 1, which is characterized in that two end surface of steel bushing is equipped with water
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254150.5U CN208696315U (en) | 2018-08-03 | 2018-08-03 | A kind of air bearing electric main-shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254150.5U CN208696315U (en) | 2018-08-03 | 2018-08-03 | A kind of air bearing electric main-shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208696315U true CN208696315U (en) | 2019-04-05 |
Family
ID=65940709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821254150.5U Expired - Fee Related CN208696315U (en) | 2018-08-03 | 2018-08-03 | A kind of air bearing electric main-shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208696315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477954A (en) * | 2021-07-07 | 2021-10-08 | 珠海格力电器股份有限公司 | Automatic tool changing motorized spindle and machine tool |
-
2018
- 2018-08-03 CN CN201821254150.5U patent/CN208696315U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477954A (en) * | 2021-07-07 | 2021-10-08 | 珠海格力电器股份有限公司 | Automatic tool changing motorized spindle and machine tool |
| CN113477954B (en) * | 2021-07-07 | 2022-11-04 | 珠海格力电器股份有限公司 | Automatic tool changing motorized spindle and machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20190803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |