CN108907839A - A kind of air-bearing automatic tool changer main shaft - Google Patents
A kind of air-bearing automatic tool changer main shaft Download PDFInfo
- Publication number
- CN108907839A CN108907839A CN201811162794.6A CN201811162794A CN108907839A CN 108907839 A CN108907839 A CN 108907839A CN 201811162794 A CN201811162794 A CN 201811162794A CN 108907839 A CN108907839 A CN 108907839A
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- Prior art keywords
- bearing
- knife handle
- main shaft
- cylinder
- air
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a kind of air-bearing automatic tool changer main shafts, including body assembly, rotor assembly, preceding Bearing component, rear Bearing component, tool-broaching mechanism, cylinder holder assembly and cylinder assembly;The front end in the central spindle hole in the central spindle of rotor assembly is conical opening, and the included angle A between two bevel edges of the conical opening axial cross section is 4-16 degree;The rear end of knife handle in tool-broaching mechanism is tapered surface, and the included angle A between two bevel edges of the tapered surface axial cross section is 4-16 degree;The tapered surface is corresponding to conical opening to be cooperated, and knife handle flange is additionally provided in the middle part of knife handle, and the right side of the knife handle flange and the front end face of central spindle offset.The present invention is cooperated using the tapered surface of low-angle and the conical opening of central spindle, while the right side of knife handle flange and the front end face of central spindle offset, and realizes dual contact;When automatic tool changer and knife handle, insertion taking-up is all very convenient, and axially directed effect is preferable, and resetting is convenient and efficient, increases the security reliability of production, improves working efficiency.
Description
Technical field
The present invention relates to machining equipment technical fields, are to be related to a kind of air-bearing automatic tool changer more specifically
Main shaft.
Background technique
Due to the development of the technologies such as mobile phone, people are higher and higher to production efficiency requirement, while also to improve the product of processing
Matter, requires the aesthetic finish of the products such as phone housing higher and higher, thus has to the electric machine main shaft of, bloom higher
It is required that the degree of automation is also higher and higher.Including requiring on revolving speed, higher, main shaft smooth running performance is good, main shaft is in height
Speed operating swings small etc..
It is typically all that the cylinder used is tied at present on automatic tool changer main shaft in industry, at knife handle and central spindle cooperation
Insertion is taken out not convenient enough when structure, automatic tool changer and knife handle, and axially directed effect is bad, and resetting is not convenient and fast, from
Safety and the reliability for moving knife and knife handle are lower, and working efficiency is not high.
Summary of the invention
The technical problems to be solved by the invention are to provide a kind of air-bearing automatic tool changer main shaft, solve the prior art
Insertion is taken out inconvenient when middle automatic tool changer and knife handle, and axially directed effect is bad, and the not convenient and fast problem of resetting mentions
The safety and reliability of high automatic tool changer and knife handle improve working efficiency.
In order to achieve the above purpose, the technical scheme is that:
1. a kind of air-bearing automatic tool changer main shaft, including body assembly comprising ontology, coil, front cover and body housing, this
Be equipped with rotor assembly, preceding Bearing component and rear Bearing component in body component, rotor assembly include central spindle, knife handle, cutter, mouse cage and
Knife handle nut, central spindle is interior to be equipped with tool-broaching mechanism, and the right end of ontology is equipped with cylinder holder assembly and cylinder assembly, the central spindle(33)'s
The front end in central spindle hole is conical opening, and the included angle A between two bevel edges of the conical opening axial cross section is 4-16 degree;The knife handle
Rear end is tapered surface, and the included angle A between two bevel edges of the tapered surface axial cross section is 4-16 degree;The tapered surface and conical opening phase
It should cooperate, knife handle flange is additionally provided in the middle part of knife handle, the right side of the knife handle flange and the front end face of central spindle offset.
Wherein, the preceding Bearing component includes preceding Bearing, orifice plug and O-ring seal;Preceding Bearing outer circle have sink and
Air drain, the left end of preceding Bearing are equipped with a preceding Bearing flange, and the left end face of the preceding Bearing flange is equipped with two circles along its circle
Multiple first segment discharge orifices of circumferential direction distribution, multiple first segment discharge orifice respectively with the radial direction by nearby Perrin process orchid right end face
Air inlet connection;The first segment discharge orifice has 24.
Wherein, the gas vent that direction extends axially along, the gas vent are additionally provided in the right end face of the fore bearing
It is connected to the central through hole of preceding Bearing, there are four the gas vents.
Wherein, Bearing component includes rear Bearing, orifice plug and O-ring seal after described, it is described after Bearing outer circle on
Equipped with equipped with cooling-water duct and multiple air inlets.
It wherein, further include thrust component comprising thrust Bearing and dust retaining ring;The left end face of thrust Bearing is equipped with water
Slot and air drain form a closed type chamber with front cover;Totally two ten four, two circles are additionally provided in the right end face of thrust Bearing
Second throttle orifice.
Wherein,:The tool-broaching mechanism, including pulling claw component, pull-rod nut inductance loop, pull rod, pull-rod spring, pull-rod spring
Spacer ring and pull rod iron hoop;Pulling claw component includes drawing valve pulling claw and pulling claw ontology.
Wherein, the cylinder holder assembly includes cylinder block, inductor assembly, cylinder reset spring and various terminal.
Wherein, the cylinder assembly includes rear cover, cylinder baffle, three cylinder push jacks and mandril;On the end face of rear cover
It equipped with cylinder tool changing pneumatic fittings, is connected between cylinder baffle and three cylinder push jacks with O-ring seal, three cylinder push jacks are logical
Connection bolt is crossed to be fixed together.
Beneficial effects of the present invention:
Knife handle of the invention is cooperated using low-angle tapered surface and the conical opening of central spindle, while the right side of knife handle flange and central spindle
Front end face offset, to realize dual contact;When automatic tool changer and knife handle, all very convenient, axially directed effect is taken out in insertion
Preferably, resetting is convenient and efficient, increases the security reliability of production, improves work efficiency.
In addition, preceding Bearing flange left side and the right side of thrust Bearing are all made of two circles totally 24 throttle orifices, make main shaft
Axial push and draw force greatly increase, main shaft is not easy stuck.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of the section structure of the invention.
Fig. 2 is a kind of structural schematic diagram of angle of preceding Bearing of the invention.
Fig. 3 is the structural schematic diagram of another angle of preceding Bearing of the invention.
Fig. 4 is a kind of structural schematic diagram of angle of thrust Bearing of the invention.
Fig. 5 is the structural schematic diagram of another angle of thrust Bearing of the invention.
Specific embodiment
In order to make present invention solves the technical problem that, use technical solution, the technical effect of acquirement it can be readily appreciated that below
In conjunction with specific attached drawing, a specific embodiment of the invention is described further.
It should be noted that illustrating only part related to the present invention for ease of description, in attached drawing and not all knot
Structure.
As shown in Figs. 1-5, in one particular embodiment of the present invention, a kind of air-bearing automatic tool changer master is provided
Axis.
The main shaft mainly includes body assembly, rotor assembly, preceding Bearing component, rear Bearing component, thrust Bearing component, draws
Cutter mechanism, cylinder holder assembly, cylinder assembly.
Wherein, body assembly includes ontology(8), coil(9), coil coolant jacket(10), front cover(3)And body housing(5).
Coil(9)It is located at ontology(8)Interior middle part, coil coolant jacket(10)In coil(9)Outside, to coil(9)It is cooled down, is prevented
Only it crosses cause thermal damage, body housing(5)In ontology(8)Left end on the outside of, front cover(3)It is mounted on ontology(8)Left end.
Ontology(8)It for the core of entire main shaft and external connection, while being also the assembly of entire spindle core accessory
Main body.Ontology(8)By embracing folder together with external connection, coil(9)Pass through ontology(8)The coil location hole of side carries out axis
To with radial positioning.
Wherein, rotor assembly includes central spindle(33), knife handle(2), cutter(37), mouse cage (29) and knife handle nut(1), central spindle
(33)It is located at ontology(8)Interior middle part, along ontology(8)Axial direction extend, central spindle(33)Equipped with central spindle through-hole, mouse cage
(29)It is located at central spindle(33)Lateral surface and coil(9)Between, central spindle(33)Front end be additionally provided with a flying disc(331).
Knife handle(2)Front opening in for installing cutter(37), knife handle(2)It is mounted on central spindle(33)Before upper central spindle hole
The front end at end, central spindle hole is equipped with a conical opening(36), knife handle(2)Rear end be equipped with tapered surface, the tapered surface be inserted into conical opening
(36)Interior, the two is used cooperatively, tapered surface and conical opening(36)'s
Included angle A between two bevel edges of axial cross section is 4-16 degree.Knife handle(2)The front end of middle part tapered surface be additionally provided with knife handle
Flange(201), knife handle flange(201)Right side and central spindle(33)Front end face offset.In this way, knife handle(2)With central spindle(33)
When cooperation, just there is knife handle(2)Tapered surface and knife handle flange(201)Totally two contact surfaces are positioned for right side, facilitate knife
Handle(2)Installation and replacement, low-angle(A is 4-16 degree)Tapered surface and conical opening(36), knife handle(2)Axial direction when installation is led
It is preferable to effect, it improves work efficiency, increases security reliability.
Wherein, preceding Bearing component includes preceding Bearing(31), orifice plug and O-ring seal.Preceding Bearing(31)Outer circle has water
The left end of slot and air drain, preceding Bearing is equipped with a preceding Bearing flange(312), the preceding Bearing flange(312)Left end face on set
The multiple first segment discharge orifices for thering are two circles to be distributed along its circumferencial direction(311), multiple first segment discharge orifice(311)Respectively with it is close
The radial air inlet hole of preceding Bearing flange right end face(38)Connection;The first segment discharge orifice(311)There are 24(With reference to figure
2).
Preceding Bearing(31)Right end face on be additionally provided with the gas vent of the extension in direction axially along(314), the exhaust
Hole(314)With preceding Bearing(31)Central through hole connection, the gas vent(314)There are four(With reference to Fig. 3).
Wherein, rear Bearing component includes rear Bearing(11), orifice plug(12)And O-ring seal.Afterwards in the outer circle of Bearing
Equipped with multiple air inlets(13)And cooling-water duct.Bearing afterwards(11)It is flexible preferable in main shaft without flange, but there is limit in side
Guarantee its position in the body.
Wherein, thrust component includes thrust Bearing(4)And dust retaining ring(34);Thrust Bearing(4)Left end face be equipped with
Sink(403)And air drain(402), thrust Bearing(4)Right end face be equipped with 2 circle totally 24 the second throttle orifices(401)(With reference to figure
4-5);Thrust Bearing(4)With front cover(3)Form a closed type chamber.In spindle operation, high pressure gas passes through gas connection
(15)And gas passage is intracavitary into the type, by air drain(402)Into each second throttle orifice(401)Axial push away is provided to main shaft
Power.Cooling water is by cooling water inlet(14)Input, through passing through thrust Bearing by water(4)Circulation waterway is formed in main shaft, it is cold
But each accessory of main shaft.Cooling water inlet(14)Rear side be equipped with cooling water outlet.
Wherein, tool-broaching mechanism includes pulling claw component(32), pull-rod nut inductance loop(25), pull rod(28), pull-rod spring
(26), pull-rod spring spacer ring(27)And pull rod iron hoop(30).
Pulling claw component(32)Including drawing valve pulling claw(6)With pulling claw ontology(7), draw valve pulling claw(6)Positioned at knife handle(2)The right side
Valve pulling claw is drawn in side(6)It is fixed on pulling claw ontology(7)Front end outer side, draw valve pulling claw(6)Using pintongs separate type, in rotor
Portion acts freely, using flexible.Pulling claw claw(6)Surface uses diamond coatings, increases the hardness and wearability of pulling claw.It draws
Pawl ontology(7)With central spindle(33)It is gap-matched and carries out flexible positioning with two O-rings, while guaranteeing axial progress
It ensure that the flexibility ratio of pulling claw.Pulling claw ontology(7)Tail portion uses interior tooth, with pull rod(28)Easy to assembly, interchangeability is strong.
Pull rod(28)Front end be mounted on pulling claw ontology(7)It is interior, pull rod(28)Lateral surface on be cased with 2 pull-rod springs
(26), pull-rod spring(26)Front end be equipped with pull rod iron hoop, two pull-rod springs(26)Between be equipped with pull-rod spring spacer ring(27),
Pull rod(28)Rear end be equipped with pull rod inductance loop(25).
This tool-broaching mechanism provides broach force, and pull rod using elastic element(28)The pull rod inductance loop of end(25)Using not
The material of easy magnetization makes, to ensure that pull rod inductance loop(25)To the sensitivity of cutter induction.
Wherein, cylinder holder assembly includes cylinder block(23), inductor assembly(24), cylinder reset spring(39)And it is various
Connector.
Wherein, cylinder assembly includes rear cover(19), cylinder baffle(16,17,18), three cylinder push jacks(21)And mandril
(22), rear cover(19)End face be equipped with cylinder tool changing pneumatic fittings(20).
3 cylinder push jacks(21)It is fixed together by connecting bolt 40.
Cylinder block(23)Structure is complicated, plays a part of to connect cylinder and body assembly in main shaft.Cylinder block(23)By gas
Cylinder end has cylinder reset spring(39), in main shaft work, reset force is provided to cylinder, by cylinder push jack(21)Push rear cover to
(19)End, main shaft in the running, mandril(22)It will not be with pull rod(28)There are contacts, so as to avoid main shaft because of mandril(22)It connects
Touch pull rod(28)Cause the situation that main shaft is stuck.
Tool changing is needed in main shaft(Knife handle)When, pass through the cylinder tool changing pneumatic fittings(20)Certain air pressure is injected to cylinder
Gas passes through 3 cylinder push jacks(21), mandril(22)Transfer force to tool-broaching mechanism.Cylinder baffle(16,17,18)With cylinder
Push jack(21)Between connected with O-ring seal, O-ring seal has good sealing effect, and lower coefficient of friction makes to bring about the desired sensation
The power that cylinder loses at work substantially reduces.
The ontology of main shaft(8)On have cooling circulating water, it is ensured that main shaft is in normal temperature state in the running.Main shaft is operating
When, pass through cylinder block(23)External air-flow is to pull rod(28), pulling claw component(32)Backward front-end of spindle sprays air-flow, when tool changing
So that break flour is cannot be introduced into main shaft, allow inside main shaft in dustless state, significant increase main shaft service life, maximum speed can reach 10
Ten thousand rpms.
Main shaft uses a kind of knife handle of Small Taper dual contact(2), when automatic tool changer(Actually knife handle and cutter be together
It is changed from main shaft), it is ensured that very high repetitive positioning accuracy.Main shaft pass through at work knife handle [(2)Male cone (strobilus masculinus)
With central spindle(33)Inner conical surface cooperation, while knife handle flange(201)End face and central spindle(33)Front end face be close to, to realize double
Face positioning.
The preceding Bearing that main shaft uses(31)With rear Bearing(11)For air bearing, with central spindle(33)Without directly contacting, avoid
The friction of revolving part and fixing piece, and the medium that it is used is air, it is economic and environment-friendly, it is inexhaustible, it improves
The efficiency of motor and service life.Preceding Bearing flange(312)End face and thrust Bearing(4)End face be all made of two circles totally 24 throttling
Hole greatly increases main shaft axial direction push and draw force, and main shaft is not easy stuck.
Thrust bearing(4)With central spindle(33)Between have a dust retaining ring(34), it and central spindle(33)Clearance fit, gap are
0.1-0.5mm makes thrust bearing in this way(4)The gas that end face comes out is in central spindle(33)Air cavity is formed at flange chamfering, makes dust
It cannot be introduced into inside main shaft, to prevent that main shaft is stuck and shortens the service life.
The ontology of main shaft(8)Using straight tube cooling water channel, adjacent straight tube head and the tail are communicated, and produce entire main shaft at work
Raw heat in time take away by cooled recirculated water.
Main shaft uses breakdown cylinder, can increase cylinder thrust by increasing number of cylinders, and reduce external diameter of cylinder
Size, substantially reduce volume accounting of the main shaft in entire machine in this way.There are also drifting dust gas circuit effectively control dust into
Enter main shaft, greatly reduces the failure rate of main shaft at work.
Above-mentioned technical proposal provided in an embodiment of the present invention and attached drawing, for further explanation of the invention rather than limit
System, in addition it should be noted that those of ordinary skill in the art are it is to be understood that still can be to skill documented by previous embodiment
Art scheme is modified, or is equivalently replaced to part of or all technical features, and these are modified or replaceed, and
The essence of corresponding technical solution is not set to be detached from the range of technical solution of the present invention.
Claims (8)
1. a kind of air-bearing automatic tool changer main shaft, including body assembly comprising ontology(8), coil (9), front cover(3)And this
Body case (5), is equipped with rotor assembly, preceding Bearing component and rear Bearing component in body assembly, rotor assembly include central spindle (33),
Knife handle(2), cutter(37), mouse cage (29) and knife handle nut(1), central spindle (33) is interior to be equipped with tool-broaching mechanism, ontology(8)Right end set
There are cylinder holder assembly and cylinder assembly, it is characterised in that:The central spindle(33)Central spindle hole front end be conical opening(36), the cone
Shape mouth(36)Included angle A between two bevel edges of axial cross section is 4-16 degree;The knife handle(2)Rear end be tapered surface, the cone
Included angle A between two bevel edges of shape face axial cross section is 4-16 degree;The tapered surface and conical opening(36)Corresponding cooperation, knife handle
(2)Middle part be additionally provided with knife handle flange(201), the knife handle flange(201)Right side and central spindle(33)Front end face offset.
2. air-bearing automatic tool changer main shaft according to claim 1, it is characterised in that:Before the preceding Bearing component includes
Bearing(31), orifice plug and O-ring seal;Preceding Bearing(31)Outer circle has sink and air drain, preceding Bearing(31)Left end be equipped with
One preceding Bearing flange(312), the preceding Bearing flange(312)Left end face be equipped with two circles and be distributed along its circumferencial direction
Multiple first segment discharge orifices(311), multiple first segment discharge orifice(311)Respectively and by nearby Perrin process orchid(311)Right end face
Radial air inlet hole(38)Connection;The first segment discharge orifice(311)There are 24.
3. air-bearing automatic tool changer main shaft according to claim 2, it is characterised in that:The preceding Bearing(31)Right side
The gas vent of the extension in direction axially along is additionally provided on end face(314), the gas vent(314)With preceding Bearing(31)Center
Through-hole connection, the gas vent(314)There are four.
4. air-bearing automatic tool changer main shaft according to claim 1, it is characterised in that:After Bearing component includes after described
Bearing(11), orifice plug and O-ring seal, it is described after Bearing(11)Outer circle be equipped with cooling-water duct and multiple air inlets
(13).
5. air-bearing automatic tool changer main shaft according to claim 1, it is characterised in that:It further include thrust component, packet
Include thrust Bearing(4)And dust retaining ring(34);Thrust Bearing(4)Left end face be equipped with sink and air drain, with front cover(3)Shape
At a closed type chamber;Thrust Bearing(4)Right end face on be additionally provided with two circles totally two ten four the second throttle orifices(401).
6. air-bearing automatic tool changer main shaft according to claim 1, it is characterised in that:The tool-broaching mechanism, including draw
Claw assembly(32), pull-rod nut inductance loop(25), pull rod(28), pull-rod spring(26), pull-rod spring spacer ring(27)And pull rod
Iron hoop(30);Pulling claw component(32)Including drawing valve pulling claw(6)With pulling claw ontology(7).
7. air-bearing automatic tool changer main shaft according to claim 1, it is characterised in that:The cylinder holder assembly includes gas
Cylinder seat(23), inductor assembly(24), cylinder reset spring(39)And various terminal.
8. air-bearing automatic tool changer main shaft according to claim 1, it is characterised in that:The cylinder assembly includes rear cover
(19), cylinder baffle(16,17,18), three cylinder push jacks(21)And mandril(22);Rear cover(19)End face be equipped with cylinder
Tool changing pneumatic fittings(20), cylinder baffle(16,17,18)With three cylinder push jacks(21)Between connected with O-ring seal, three
Cylinder push jack(21)It is fixed together by connecting bolt 40.
Priority Applications (1)
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CN201811162794.6A CN108907839A (en) | 2018-09-30 | 2018-09-30 | A kind of air-bearing automatic tool changer main shaft |
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CN201811162794.6A CN108907839A (en) | 2018-09-30 | 2018-09-30 | A kind of air-bearing automatic tool changer main shaft |
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CN201811162794.6A Pending CN108907839A (en) | 2018-09-30 | 2018-09-30 | A kind of air-bearing automatic tool changer main shaft |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110539216A (en) * | 2019-09-17 | 2019-12-06 | 深圳市友创智能设备有限公司 | Bar grinds cutting and uses tool head |
WO2021196793A1 (en) * | 2020-04-02 | 2021-10-07 | 广州市昊志机电股份有限公司 | Spindle broaching mechanism |
WO2021196794A1 (en) * | 2020-04-02 | 2021-10-07 | 广州市昊志机电股份有限公司 | Spindle broach mechanism |
CN113635107A (en) * | 2021-10-13 | 2021-11-12 | 江苏益铨数控科技有限公司 | Tool changing spindle of numerical control vertical milling machine |
CN116673772A (en) * | 2023-05-26 | 2023-09-01 | 惠州高盛达精密有限公司 | Tool concentricity verification device |
CN116673544A (en) * | 2023-07-28 | 2023-09-01 | 南通盛联威装备科技有限公司 | Heavy-load composite broach mechanism |
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CN113635107A (en) * | 2021-10-13 | 2021-11-12 | 江苏益铨数控科技有限公司 | Tool changing spindle of numerical control vertical milling machine |
CN116673772A (en) * | 2023-05-26 | 2023-09-01 | 惠州高盛达精密有限公司 | Tool concentricity verification device |
CN116673544A (en) * | 2023-07-28 | 2023-09-01 | 南通盛联威装备科技有限公司 | Heavy-load composite broach mechanism |
CN116673544B (en) * | 2023-07-28 | 2023-11-10 | 南通盛联威装备科技有限公司 | Heavy-load composite broach mechanism |
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