CN106735334A - Electromagnet pine blade automatic tool changing electrical spindle - Google Patents
Electromagnet pine blade automatic tool changing electrical spindle Download PDFInfo
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- CN106735334A CN106735334A CN201710039931.6A CN201710039931A CN106735334A CN 106735334 A CN106735334 A CN 106735334A CN 201710039931 A CN201710039931 A CN 201710039931A CN 106735334 A CN106735334 A CN 106735334A
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- pull bar
- electromagnet
- rotor
- collet
- armature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Present invention is disclosed a kind of electromagnet pine blade automatic tool changing electrical spindle, including bearing block and motor, motor includes rotor and stator, rotor is the hollow-core construction with perforation, and the outside that bearing block closes on rotor is set, and affixed stator, also include pull bar, it is arranged in the perforation of rotor, and two ends is passed perforation, one end of pull bar is knife end；Collet, is sheathed on the knife end of pull bar, and be connected with the perforation conical surface of inboard wall of rotor；Electromagnetic assembly, electromagnetic assembly includes driving link and driven member, and driven member is fixed on pull bar, and driving link closes on driven member setting on the direction at pull bar two ends；Component is replied, is contacted with driven member.Simple structure of the present invention, occupies little space, low production cost, can preferably be applied to the mini formula numerical control machining center of miniature numerical control machining center, particularly desktop type.
Description
Technical field
The present invention relates to electro spindle automatic tool changer field, and in particular to a kind of electromagnet pine blade automatic tool changing electrical spindle.
Background technology
Electro spindle is the new technology that machine tool chief axis and spindle motor combine together.This spindle drive motor and machine tool chief axis
The drive mechanism form of " uniting two into one ", make spindle unit from the transmission system and overall structure of lathe it is relatively independent out,
Therefore " main axle unit " can be made, is commonly called as " electro spindle " (ElectricSpindle, Motor Spindle).
Numerical control machine tool technique had the development of high speed in recent years, can carry out automatic tool changer, disposably realized that multiple operation adds
The numerical control machining center of work is further notable to the importance of modern processing manufacturing industry, and it can shorten the production cycle of product, improves
Processing precision of products, is especially suitable for Flexible Manufacture.After clamped one time, the control system of lathe can be according to establishment in advance for workpiece
Good numerical control program control lathe automatically selects and exchanges cutter in different inter processes, convert the speed of mainshaft, feed speed and its
His miscellaneous function.Accomplish that clamped one time completes the processing of the operation such as milling, boring, brill, tapping on workpiece, eliminate the repeatedly fixed of workpiece
Other service working times such as position clamping, frock adjustment.Also eliminate workpiece between operation simultaneously during turnover of workpiece etc.
Between, processing cost is substantially reduced, obtain best economic benefit.So in order to be able to make workpiece that multiple tracks work can be completed after clamping
The processing of sequence, shortens process non-cutting time, reduces resetting error, the processing benefit of workpiece is improved, in modern times processing
The heart must be equipped with high-accuracy automatic tool changer.
In whole exchanging knives process is completed, drive device is typically by conventional motor or liquid for existing automatic tool changing electrical spindle
Pressure, gas-liquid mechanism composition, senior drive device are made up of servomotor or cam mechanism.Wherein, pneumatic tool changing, hydraulic pressure are changed
Knife needs additional cylinder or hydraulic cylinder, whole knife-changing system complex structure and bulky, takes up room big, is not suitable for high-volume
Assembling miniature numerical control lathe, and complex structure, design process are cumbersome, easily error, high cost.
The content of the invention
The main object of the present invention is the electromagnet pine blade automatic tool changing electrical spindle for providing a kind of simple structure.
The present invention proposes a kind of electromagnet pine blade automatic tool changing electrical spindle, including bearing block and motor, the motor bag
Rotor and stator are included, the rotor is the hollow-core construction with perforation, and the outside that the bearing block closes on the rotor is set, and
The affixed stator, also includes：
Pull bar, is arranged in the perforation of the rotor, and two ends is passed the perforation, and one end of the pull bar is cutter
End；
Collet, is sheathed on the knife end of the pull bar, and be connected with the perforation conical surface of inboard wall of the rotor；
Electromagnetic assembly, the electromagnetic assembly includes driving link and driven member, and the driven member is fixed on the pull bar, institute
State driving link and the driven member setting is closed on the direction at the pull bar two ends；
Component is replied, is contacted with the driven member.
Further, the driving link be electromagnet, the driven member be armature, the armature located at the pull bar away from
One end of collet, the electromagnet is located at the armature near the side of collet.
Further, the armature is round pie, and threaded one end of the armature middle part with the pull bar away from collet connects
Connect, and it is vertical with the pull bar, and the electromagnet is fixed on the bearing block, and the armature face phase relative with electromagnet
It is mutually parallel.
Further, the reply component is made up of some disc springs, and the disc spring is located at the armature near collet
Side, and contacted with the armature.
Further, the reply component is made up of cushion block with some disc springs, and the disc spring is set in the drawing with cushion block
On bar, and one end of the disc spring is fixed on the armature, and the other end of the disc spring is fixed on the cushion block, the pad
Block is fixed in the one end of the rotor away from collet.
Further, the armature is provided with some fabrication holes.
Further, the stator is set in the middle part of the rotor, and the two ends of the rotor are set up separately described fixed
The both sides of son；
The bearing block includes front-end bearing pedestal and rear bearing block, and the stator is arranged on the front-end bearing pedestal and rear bearing block
Between；
The front-end bearing pedestal is arranged on the stator near the side of the collet；
The rear bearing block is arranged on side of the stator away from the collet；
The front-end bearing pedestal part extension is connected with the rear bearing block.
Further, also including bearing, the bearing includes fore bearing and rear bearing, and the fore bearing is arranged on stator and leans on
The side of the nearly collet, and being set on the rotor, and with the rotor, front-end bearing pedestal interference fit；
The rear bearing sets side of the stator away from the collet, and is set on the rotor, and with it is described
Rotor, rear bearing block interference fit；
The rear bearing block laminating is set in the electromagnet outside, and the fixation electromagnet.
Further, the pull bar part between the collet and stator is additionally provided with cross nut, the cross spiral shell
Mother is set on the pull bar by screw thread.
Further, also including protecting crust, protecting crust laminating is arranged on the rotor outside, and be fixed in it is described before
On bearing block.
Beneficial effects of the present invention：Replace traditional air pressure or hydraulic-driven masterpiece to be Song Daoli using electromagnetic force, only need
Solenoid circuit break-make is controlled, in the case where electromagnet volume size is not changed, is powered electric by changing electromagnet
The size of how much control electromagnetic forces of stream or coil turn, strong applicability, and need not add that cylinder, hydraulic cylinder etc. are additional to be set
Standby, volume is greatly reduced, save space, effectively overcomes existing pneumatic tool changing electrical spindle or hydraulic pressure pine blade automatic tool changing electrical master
The tradition such as axle automatic tool changing electrical spindle complex structure, the defect such as addition optional equipment, bulky is needed, can preferably applied
In the mini formula numerical control machining center of miniature numerical control machining center, particularly desktop type.
Brief description of the drawings
Fig. 1 is a kind of structural representation of electromagnet pine blade automatic tool changing electrical spindle of one embodiment of the invention；
Fig. 2 is a kind of electromagnet pine blade automatic tool changing electrical spindle of one embodiment of the invention in the case where cutting tool state is not changed
Cut-away view；
Fig. 3 is a kind of electromagnet pine blade automatic tool changing electrical spindle cuing open in the case where cutting tool state is changed of one embodiment of the invention
Diagram；
Fig. 4 is a kind of structural representation of the armature of electromagnet pine blade automatic tool changing electrical spindle of one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each part etc. are explained, if should
When particular pose changes, then directionality indicates also correspondingly to change therewith.
In addition, it is related to the description of " first ", " second " etc. to be only used for describing purpose in the present invention, and it is not intended that referring to
Show or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " are defined
Two " at least one this feature can be expressed or be implicitly included to feature.In addition, the technical scheme between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme occurs
It is conflicting or when cannot realize it will be understood that the combination of this technical scheme does not exist, also not in the protection model of application claims
Within enclosing.
Reference picture 1-4, the present invention proposes a kind of electromagnet pine blade automatic tool changing electrical spindle, including bearing block and motor,
Motor includes rotor 5 and stator 10, and rotor 5 is the hollow-core construction with perforation, and the outside that bearing block closes on rotor 5 is set, and
Affixed stator 10, also including pull bar 9, is arranged in the perforation of rotor 5, and two ends is passed perforation, and one end of pull bar 9 is cutter
End；Collet 6, is sheathed on the knife end of pull bar 9, and be connected with the perforation conical surface of inboard wall of rotor 5；Electromagnetic assembly, electromagnetism group
Part includes driving link and driven member, and driven member is fixed on pull bar 9, and driving link closes on driven member on the direction at the two ends of pull bar 9
Set；Component is replied, is contacted with the driven member.
The present invention replaces traditional air pressure or hydraulic-driven masterpiece to be Song Daoli using electromagnetic force, it is only necessary to control electromagnet
15 connecting and disconnecting of the circuit, in the case where the volume size of electromagnet 15 is not changed, by changing the electrical current of electromagnet 15 or line
The size of how much control electromagnetic forces of the number of turn, strong applicability are enclosed, and the optional equipments such as cylinder, hydraulic cylinder, body need not be added
Product is greatly reduced, save space, effectively overcomes existing pneumatic tool changing electrical spindle or hydraulic pressure pine blade automatic tool changing electrical spindle etc.
Traditional automatic tool changing electrical spindle complex structure, addition optional equipment, the defect such as bulky, and simple structure of the present invention are needed,
Convenient operation, can preferably be applied to the mini formula numerical control machining center of miniature numerical control machining center, particularly desktop type.
In embodiments of the present invention, bearing block is used for the miscellaneous part of directly or indirectly protection and fixed supporting electric main shaft,
Bearing block according to the species and model of lathe, in the case where not influenceing electro spindle to work, it can be provided various shapes, to match somebody with somebody
Close machine tooling.In motor, rotor 5 is the rotor 5 of the hollow-core construction with perforation, and pull bar 9 is located in the perforation of rotor 5,
Can reduce and take up room, pull bar 9 again can be injury-free in the protection of rotor 5.In an embodiment of the present invention, pull bar 9
It is arranged in rotor 5, the length that the two ends of pull bar 9 pass rotor 5 can be according to the structure sets itself of electro spindle, to coordinate electric master
Axle can preferably work, for example, the length that knife end can pass rotor 5 can be shorter, not pass even, and pull bar 9 is away from knife
The length that the one end at tool end passes pull bar 9 can be more long, to coordinate the installation of electromagnetic assembly, it will be understood that the shape of pull bar 9
The shape cooperated with miscellaneous part can be set to according to rotor 5 and the structure of miscellaneous part, be not limited only to cylinder
Shape, or part-cylindrical.
In embodiments of the present invention, connected by collet 6 between the knife end of pull bar 9 and rotor 5, collet 6
With rotor 5 perforation the conical surface be connected, and with pull bar 9, rotor 5 laminating contact, rotor 5 laminating collet 6 the conical surface be from turn
The inside diminishing conical surface in aperture of the end perforation of son 5, collet 6 is for the clamp-on tool when electro spindle works
End, so as to electro spindle normal work, when needing to change cutter, collet 6 loosens the extruding force to pull bar 9, to change
Cutter, it is possible to understand, in other embodiments of the invention, rotor 5 can not be conical surface company with the connection of collet 6
Connect, it is only necessary to ensure electro spindle operationally, rotor 5 coordinates the clamp-on tool end of collet 6, need to change cutter in electro spindle
When, collet 6 can be by the contact area or the way of contact of conversion and rotor 5 so that collet 6 loosens to pull bar
Knife end 9 extruding, the shape of collet 6 is also not limited to collet or the shape similar to collet, such as
It is all invention which is intended to be protected that upper 6 need of the collet meet above-mentioned effect；Collet 6 can be fixed on drawing
On bar 9, it is also possible to be connected through a screw thread or other connections are installed on pull bar 9, in embodiments of the invention, by electromagnetism group
Part controls collet 6 to the extruding force of the knife end of pull bar 9, it is not limited to using electromagnetic assembly, as described above, only needing
To the extruding force of knife end when controlling electro spindle operationally with replacing cutter, so can also be compressed using other, blocked
Position etc., the method to reach the effect of the control extruding force of collet 6, is all scope of protection of the present invention, that is to say, that be
The above-mentioned purpose method of collet 6 or the method extended are realized, is all the scope of protection of the invention, but the preferential use of the present invention
Electromagnetic assembly controls the extruding force of collet 6, with low cost because electromagnetic assembly is easily controllable, simple structure.Bullet of the invention
Property chuck 6 also preferentially use collet, and collet with rotor 5 in the way of the conical surface is connected because conical surface connection makes bullet
Spring chuck contact with rotor 5 effect preferably, and more toward rotor 5 perforate interior motion, the extruding to the knife end of pull bar 9 by collet
Power is bigger, and length is put in the perforated tip of rotor 5 by controlling collet, you can realize control collet to cutter
After the extruding at end, and conical surface connection, coordinate electromagnetic assembly, it is easier to which realization is automatically controlled, it is many unnecessary to greatly reduce
Operating process.
In an embodiment of the present invention, also including electromagnetic assembly, electromagnetic assembly includes driving link and driven member, driving link with
Driven member is cooperated, and driven member is fixed on pull bar 9, and when electro spindle needs to change cutter, driving link is provided to driven member
Power, or driven member is actively close to driving link, makes driven member drive pull bar 9 to move, and by knife end and the part of collet 6
The perforation of rotor 5 is released, electro spindle is realized loose knife, it will be understood that the method extended to achieve these goals, all existed
In the scope of protection of the invention, however it is not limited to electromagnetic material, certainly, the present invention preferentially uses electromagnetic material, for example, work as driving link
When can be powered on making it have magnetic with driven member, the principle that can be repelled by same polarity sets driving link and driven member, example
Driving link is such as located at side of the driven member away from collet 6, it will be understood that when in driving link or driven member can
It is powered during with magnetic, is correspondingly arranged suitable position, when electro spindle is needed to change cutter, driven member can be in the work of electromagnetic force
With the lower perforated tip that knife end and the part of collet 6 are released rotor 5.The purpose of the setting of electromagnetic assembly, is to control
Collet processed 6 is to the extruding force of knife end, so electromagnetic assembly can also be set in many ways, to coordinate collet 6
Extruding to knife end, as described above, collet 6 is connected with rotor 5 by the conical surface, by controlling collet 6 in rotor 5
End puts in length, to realize the extruding for controlling collet 6 to knife end.Because collet 6 has been arranged on pull bar 9
In knife end, so electromagnetic assembly can be arranged on part of the pull bar 9 away from collet 6, for example, the another of pull bar 9 is arranged on
End, or collet 6 and with the part between the part between stator 10, or the other end of pull bar 9 and stator 10, the present invention
Electromagnetic assembly is preferentially arranged on outside of the pull bar 9 away from the other end of knife end, and be connected with pull bar 9 by embodiment, so as to electricity
Main shaft is easily controllable and dismounts, and after electromagnetic assembly is connected with pull bar 9, by controlling the contactor of electromagnetic assembly, can just control
Pull bar 9 in use, after electromagnetic assembly is powered, is released wearing for rotor 5 by collet 6 in the perforation amount of putting in of rotor 5
Hole, because collet 6 is installed on pull bar 9, so collet 6 releases the perforation of rotor 5 with pull bar 9 by together with
In, hereby it is achieved that controlling collet 6 to put in the length that rotor 5 is perforated with electromagnetic assembly.It is appreciated that electromagnetic assembly is filled
It is located between knife end and stator 10, or is installed in pull bar 9 away between the other end and stator 10 of knife end, effect is also
Control collet 6 puts in the length of the perforation of rotor 5, but when being installed in above-mentioned two position, the structure of electro spindle will be more
Complexity, the operation of making is also relatively complicated, and production cost is higher, and disassembling, assembling and replacing part also more takes time and effort.
In embodiments of the present invention, also reply component and contacted with driven member including replying component.Replying the effect of component is
Electromagnetic assembly is released the perforation of rotor 5 by pull bar 9 and the part of collet 6, after knife end more finishes changing cutter, by collet
6 and pull bar 9 be returned to state before electromagnetic assembly is pushed out, and pull bar 9 is tensed collet 6, to prevent elasticity
Chuck loosens when that need not change cutter, and reply component can be set between the two ends of pull bar 9 according to the position of driven member.Equally
, the form for replying component can also have diversified forms, and in the embodiment of the present invention, replying component by control just can be by pull bar 9
And collet 6 is returned to the state before electromagnetic assembly is pushed out, replying component can be by single control device control
System, i.e., after knife end is by cutter changing, component, indirect control pull bar 9 and collet 6 are replied by individually control,
Can also select after being cooperated with electromagnetic assembly, it is possible to realize replying the reply component of effect, such as spring etc., the present invention
Embodiment preferably by the way of the mutual cooperation of component and electromagnetic assembly is replied, to save manufacturing cost.Reply the shape of component
Shape can be correspondingly arranged according to the shape of electro spindle miscellaneous part, and optimal state is reached so as to electro spindle.Replying component can
It is arranged between the two ends of pull bar 9 with according to the position of driven member, as long as can realize for pull bar 9 and collet 6 being returned to electricity
Magnetic assembly be pushed out before state and make pull bar that collet is tensed when cutter need not be changed, when reply component
When being cooperated with driven member, replying component can be set on pull bar 9, it is also possible to close on pull bar 9 and set, but realize to drawing
The control of bar 9, directly or indirectly can be connected with pull bar 9, and heretofore described reply component is connected with pull bar 9 and includes directly
Connect and be indirectly connected with, the embodiment of the present invention preferentially using replying by the way of component and pull bar be indirectly connected with, when reply component and
When pull bar 9 is indirectly connected with, can be connected with pull bar 9 indirectly by electromagnetic assembly.
Further, replying component includes some disc springs 16, and disc spring 16 is close to the side of collet 6 located at armature 17,
And contacted with armature 17.Disc spring 16 can be set on pull bar 9, it is also possible to be not set on pull bar 9, one end and the rank of disc spring 16
Iron 17 is contacted, or is directly fixed on armature 17, and the other end is contacted with the miscellaneous part of electro spindle, or affixed, for example with
Bearing block or stator 10 etc., replying component can also include miscellaneous part, so as to reply the effect that component realizes above-mentioned purpose
It is best.
The embodiment of the loose blade automatic tool changing electrical spindle of electromagnet of the invention 15 for processing in workpiece fabrication, rotor
5 when rotating, the part rotation for driving pull bar 9 by collet 6 and contact with pull bar 9, and the part contacted with pull bar 9 can be with
It is part that electromagnetic assembly is connected with pull bar 9, and when replying component and being set to be directly connected to pull bar 9, such as reply group
When part is set on pull bar 9.When electro spindle needs tool changing, after electromagnetic assembly is powered, by pull bar 9 and it is installed on pull bar 9
Collet 6 release, the knife end of pull bar 9 to be changed and reply component after cutter collet 6 and pull bar 9 are returned into electromagnetism
Component be pushed out before state, when replying component and electromagnetic assembly and cooperating, reply component by promoting electromagnetism group
The part that part is connected with pull bar 9, is returned to the state before releasing by collet 6 and pull bar 9 indirectly.
Reference picture 2-3, in a kind of embodiment of the loose blade automatic tool changing electrical spindle of electromagnet of the invention 15, electromagnetic assembly
Including electromagnet 15 and armature 17, armature 17 is located at the one end of pull bar 9 away from collet 6, and electromagnet 15 is leaned on located at armature 17
The side of nearly collet 6, and close on the armature 17.In embodiments of the present invention, after electromagnet 15 is powered, usually most lean on
The one side of nearly armature 17 has magnetic, and other faces do not set magnetic, to prevent other portions of the effect of magnetic influence electro spindle of electromagnet 15
The normal work of part.When electro spindle need not change cutter, electromagnet 15 is separated with armature 17 but closes on setting, and armature 17 is set
Pull bar 9 away from collet 6 one end, located at armature 17 near the side of collet 6, electromagnet 15 can be with for electromagnet 15
Be fixed on bearing block, it is also possible to be fixed on the stator 10 of motor, or by miscellaneous part be indirectly fixed to bearing block or
On stator 10, when electro spindle needs to change cutter, after electromagnet 15 is powered, armature 17 is pulled into the side of electromagnet 15 using magnetic force
To because armature 17 is connected to the one end of pull bar 9 away from collet 6, and electromagnet 15 is arranged on collet 6 and armature 17
Between, so when electromagnet 15 attracts armature 17, the motion of armature 17 drives the motion of pull bar 9, and by pull bar 9 and elasticity
The end of rotor 5 is released in the part of chuck 6, to reach the effect of the knife end of pull bar 9 pine knife, after changing cutter, and will by reply component
Collet 6 and pull bar 9 are returned to the state before electromagnetic assembly is pushed out, the magnetic of electromagnet 15 can be by changing
How much controls of the electrical current of electromagnet 15 or coil turn become.And replying component elasticity recovery chuck 6 and pull bar 9
During state, the magnetic force of electromagnet 15 can be reduced slowly by controlling the electric current of electromagnet 15, prevent electromagnet 15 from losing suddenly
During demagnetization force, the restoring force for replying component it is excessive and by the parts damages of electro spindle.
Further, armature 17 is round pie, and threaded one end of the middle part of armature 17 with pull bar 9 away from collet 6 is connected,
And it is vertical with the pull bar 9, in use, armature 17 is connected with pull bar 9, so armature 17 is rotated with pull bar 9, preferably
, after armature 17 is threadedly coupled with pull bar 9, pull bar 9 is additionally provided with the first locking nut 18 by armature away from one end of collet 6
17 compress, and prevent armature 17 from being come off in rotation.When electromagnet 15 is using magnetic-adsorption armature 17, the armature 17 of round pie can
To coordinate more preferably with electromagnet 15, when electromagnet 15 and the immediate face of armature 17 are not same or similar sizes, electricity
Magnet 15 can select set position will be some more, and when electromagnet 15 energization after adsorb armature 17 when, due to rank
Iron 17 is vertical with pull bar 9, when electromagnet 15 absorption affinity not with pull bar 9 on the same line when, armature 17 is vertical with pull bar 9 can
To reduce shear action of the electromagnetic force to pull bar 9.Some fabrication holes 19 are provided with further armature 17, for adjusting electro spindle
Dynamic balancing when running at high speed.
Further, electromagnet 15 is fixed on bearing block, and the face adjacent with electromagnet 15 of armature 17 is parallel to each other.Axle
Bearing is in order to preferably support the miscellaneous part with protection electro spindle, so it is this hair that electromagnet 15 is fixed on bearing block
Bright more preferred mode, the face adjacent with electromagnet 15 of armature 17 is parallel to each other, preferential, by electromagnet 15 and the phase of armature 17
Adjacent two sides sets that size is close or identical area, so that electromagnet 15 coordinates preferably with armature 17, electromagnet 15 and rank
The adjacent face of iron 17 is parallel to each other, and size it is of substantially equal when, the absorption affinity of electromagnet 15 is basic with pull bar 9 straight at one
On line, it is to avoid shear action of the electromagnetic force to pull bar 9, and prevent the pull bar 9 excessive with the frictional force of rotor 5, so this
The preferred outside that electromagnet 15 is set in pull bar 9 of invention, to coordinate the armature 17 of round pie, imitates the effect of electromagnetic assembly
Fruit reaches best.
Reference picture 2-3, in an alternative embodiment of the invention, replys component and is made up of with some disc springs 16 cushion block 14, disc spring
16 are set on pull bar 9 with cushion block 14, and one end of disc spring 16 is fixed on armature 17, and the other end of disc spring 16 is fixed in cushion block
On 14, cushion block 14 is fixed in the one end of rotor 5 away from collet 6.In an embodiment of the present invention, disc spring 16 can be by some
Disc spring 16 constitutes disc spring group, the quantity of disc spring 16 can be ten, 16 or other, the size according to electro spindle determines number
Amount, so that the working condition of electro spindle reaches best, the two ends of disc spring 16 contact with armature 17, cushion block 14 respectively in the present invention.
Preferential, two ends are separately fixed on armature 17 and cushion block 14 in the present invention, when electro spindle is used to process workpiece, armature 17,
Disc spring 16 with cushion block 14 together as pull bar 9 is rotated, so as to each several part part energy run-in synchronism contacted with pull bar 9, also, dish
The two ends of spring 16 are separately fixed on armature 17 and cushion block 14, and after precompressed is carried out to disc spring 16, cushion block is pushed down in one end of disc spring 16
After 14, the other end is acted on driven member, and then collet 6 is tensed.Cushion block 14 is used for reducing the quantity of disc spring 16, or contracting
The length of short disc spring 16, so as to reduce Song Daoli, cushion block 14 is fixed on the second locking nut 13, and the second locking nut 13 passes through
Screw thread is connected with one end away from collet 6 of rotor 5, and in an embodiment of the present invention, cushion block 14 is shaped to circle
Ring-type, when the second locking nut 13 is connected with rotor 5, cushion block 14 is also set on pull bar 9, therefore reply component in disc spring 16 with
Cushion block 14 be arranged on rotor 5 away from the pull bar 9 between one end of collet 6 and armature 17, it will be understood that above-mentioned reply
The set-up mode of component is a kind of preferred embodiment of the invention, and in other embodiments, replying component can also be arranged to
Other shapes and realize by other means, for example, when replying component and being served as by electromagnetic assembly, electromagnet 15 is arranged on armature
17 both sides, are powered off by controlling the electromagnet 15 of the both sides of armature 17 to be powered, it is possible to control pull bar 9 and collet 6 turning
The amount of putting in of sub 5 ends.In other embodiments, collet 6 and pull bar 9 can be returned to electromagnetic assembly and incited somebody to action by reply component
The shape and set-up mode of its state before releasing are all within protection scope of the present invention.
Reference picture 1-3, in another preferred embodiment of the invention, stator 10 is set in the middle part of rotor 5, and will turn
Set up separately in the both sides of stator 10 at the two ends of son 5；Bearing block includes front-end bearing pedestal 1 and rear bearing block 11, and stator 10 is arranged on front axle
Between bearing 1 and rear bearing block 11, and stator 10 is fixed；Front-end bearing pedestal 1 is arranged on stator 10 near the one of collet 6
Side；Rear bearing block 11 is arranged on side of the stator 10 away from collet 6；The part of front-end bearing pedestal 1 extends and the phase of rear bearing block 11
Connect；Also include bearing, bearing includes fore bearing 7 and rear bearing 12, and fore bearing 7 is arranged on stator 10 near the one of collet 6
Side, and being set on rotor 5, and with rotor 5, the interference fit of front-end bearing pedestal 1；Bearing 12 sets stator 10 away from collet afterwards
6 side, and being set on rotor 5, and with rotor 5, the interference fit of rear bearing block 11.Bearing block be divided into front-end bearing pedestal 1 with
Stator 10 is fixed on centre by rear bearing block 11, it is easy to dismount, front-end bearing pedestal 1 with rear bearing block 11, does not coat stator 10,
So that the radiating effect of stator 10 is more preferable.Fore bearing 7 sets up separately in the both sides of stator 10 with rear bearing 12, it is ensured that rotor 5 can be steady
Surely carry out high-speed rotation, fore bearing 7 respectively with front-end bearing pedestal 1, the interference fit of rotor 5, rear bearing 12 respectively with rear bearing block
11st, the interference fit of rotor 5 so that combine closely to form an entirety between the part of electro spindle each several part.When reply component by
When disc spring 16 is constituted with cushion block 14, the second locking nut 13 is threaded in rotor 5 of the stator 10 away from the side of collet 6
On, the reply component with disc spring 16 with cushion block 14 as part can not only be fixed, can also will be arranged on the second locking screw
Rear bearing 12 between female 13 and stator 10 is locked between the second locking nut 13 and stator 10, when preventing high-speed motion, after
Bearing 12 is unexpected to come off, and further, when electromagnetic assembly is made up of electromagnet 15 and armature 17, the laminating of rear bearing block 11 is arranged
In the outside of the electromagnet 15, and the fixation electromagnet 15.
Further, when electromagnetic assembly is made up of electromagnet 15, armature 17, reply component and be made up of with cushion block 14 disc spring 16
When, when that need not change cutter, electromagnet 15 is in power failure state, to armature without absorption affinity, armature 17 and electromagnet 15 it
Between exist a determining deviation, such as 2mm spacing or 4mm spacing etc., pull bar 9 the elastic force of disc spring 16 effect under tense collet 6, from
And have clamp-on tool；When needing to change cutter, the rotor 5 of motor is stalled, and electromagnet 15 is powered, and armature 17 is adsorbed in electromagnet 15
Overcome the elastic force of disc spring 16 under power effect and compress 16 groups of disc spring, until armature 17 touches electricity under the effect of the absorption affinity of electromagnet 15
Magnet 15, disc spring 16 by compression certain length, such as 2mm or 4mm etc., and collet 6 and pull bar 9 are released the rotor of motor
5 perforation certain distances, such as 2mm or 4mm etc., realize loose knife process, to change cutter.
Further, the part of pull bar 9 between collet 6 and stator 10 is additionally provided with cross nut 8, cross nut 8
It is set on pull bar 9 by screw thread, the effect of cross nut 8 is to prevent pull bar 9 from loosening and playing during electro spindle changer
Protective effect, prevents pull bar 9 from being flown out under the elastic force effect of disc spring 16.The cross nut 8 is by the retaining structure inside rotor 5
Realize above-mentioned effect, it will be understood that when the cross nut 8 is installed in the other positions of other pull bars 9, above-mentioned effect can be realized
Protection scope of the present invention is belonged to, certainly preferably easy-disassembling-assembling installing mode.
Also include protecting crust in the further embodiment of the present invention, protecting crust laminating is arranged on the outside of rotor 5, and solid
It is connected on the front-end bearing pedestal 1.Protecting crust includes interior protecting crust 3 and outer protecting crust 2, and two protecting crusts can not only be dual dust-proof,
Can also be that one end for being provided with collet 6 of rotor 5 increases support force, prevent after a number of uses, the end of rotor 5 is worn
Bore deformation.Fore bearing 7 is additionally provided with the 3rd locking nut 4 in the outside in the direction of pull bar 9, significantly reduces fore bearing 7 to protective cover
Extruding.
The present embodiment adsorbs armature 17 and is moved to the direction of collet 6 when in use, by the absorption affinity of electromagnet 15, holds in the mouth
Iron 17 overcomes the elastic force of disc spring 16 to compress disc spring 16 in the case of being moved to stator 10, so that pushing drawing rod 9 is to the direction of stator 10
Movement, and the knife end of pull bar 9 and collet 6 are released the perforation of rotor 5, in the present embodiment, collet 6 is preferentially selected
Collet, so after collet is pushed out the perforation of rotor 5, collet spring valve is opened, realizes loose knife process.In a tool
In body embodiment, when electro spindle does not work or in electro spindle process, i.e., when electro spindle need not change cutter, electromagnet
15 are in power failure state, and now, the pre compressed magnitude of disc spring group is 2mm, have between armature 17 and electromagnet 15 2mm it is reserved between
Gap, disc spring 16 can be 16 groups of disc spring being made up of 16 disc springs 16, connects back-to-back and is set on pull bar 9, and pull bar 9 is in disc spring
The lower tension collet of elastic force effect produced after group precompressed 2mm, so as to the clamp-on tool when electro spindle is not in and changes to state；
When electro spindle needs to change cutter, motor stalling, electromagnet 15 is powered, and electromagnet 15 is had magnetic near the one side of armature 17
Power, armature 17 overcomes the elastic force of disc spring group under the suction-operated of the magnetic force of electromagnet 15 and compresses disc spring group, until armature 17 connects
Electromagnet 15 is contacted, so that armature 17 drives pull bar 9 that an end motion of collet 6 is provided with to rotor 5, and collet is pushed away
Go out the perforation 2mm of rotor 5, realize loose knife process；After main shaft changes target tool, electromagnet 15 is powered off, and makes electromagnet 15
Without electromagnetic adsorption power, armature 17 returns to the position before being adsorbed by electromagnet 15 under 16 groups of elastic force effects of disc spring, so as to drive
Pull bar 9 and collet 6 reply the position before band is pushed out, until reaching stable state, so as to complete whole exchanging knives process.
The present invention replaces traditional air pressure or hydraulic-driven masterpiece to be Song Daoli using electromagnetic force, it is only necessary to control electromagnet
15 connecting and disconnecting of the circuit, in the case where the volume size of electromagnet 15 is not changed, by changing the electrical current of electromagnet 15 or line
The size of how much control electromagnetic forces of the number of turn, strong applicability are enclosed, and the optional equipments such as cylinder, hydraulic cylinder, body need not be added
Product is greatly reduced, save space, effectively overcomes existing pneumatic tool changing electrical spindle or hydraulic pressure pine blade automatic tool changing electrical spindle etc.
Traditional automatic tool changing electrical spindle complex structure, addition optional equipment, the defect such as bulky are needed, can be preferably applied to small
The mini formula numerical control machining center of type numerical control machining center, particularly desktop type.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the invention, every utilization is not thereby limited
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of electromagnet pine blade automatic tool changing electrical spindle, including bearing block and motor, the motor include rotor and stator,
The rotor is the hollow-core construction with perforation, and the outside that the bearing block closes on the rotor is set, and the affixed stator,
Characterized in that, also including：
Pull bar, is arranged in the perforation of the rotor, and two ends is passed the perforation, and one end of the pull bar is knife end；
Collet, is sheathed on the knife end of the pull bar, and be connected with the perforation conical surface of inboard wall of the rotor；
Electromagnetic assembly, the electromagnetic assembly includes driving link and driven member, and the driven member is fixed on the pull bar, the master
Moving part closes on the driven member on the direction at the pull bar two ends and sets；
Component is replied, is contacted with the driven member.
2. electromagnet as claimed in claim 1 pine blade automatic tool changing electrical spindle, it is characterised in that the driving link is electromagnetism
Iron, the driven member is armature, and the armature is located at the one end of the pull bar away from collet, and the electromagnet is located at described
Armature is near the side of collet.
3. electromagnet as claimed in claim 2 pine blade automatic tool changing electrical spindle, it is characterised in that the armature is cake
Shape, threaded one end of the armature middle part with the pull bar away from collet is connected, and vertical with the pull bar, and the electromagnet is consolidated
It is connected on the bearing block, and the armature face relative with electromagnet is parallel to each other.
4. electromagnet as claimed in claim 2 or claim 3 pine blade automatic tool changing electrical spindle, it is characterised in that the reply component
It is made up of some disc springs, the disc spring is located at the armature near the side of collet, and is contacted with the armature.
5. electromagnet as claimed in claim 3 pine blade automatic tool changing electrical spindle, it is characterised in that the reply component is by padding
Block is constituted with some disc springs, and the disc spring is set on the pull bar with cushion block, and one end of the disc spring is fixed in the rank
On iron, the other end of the disc spring is fixed on the cushion block, and the cushion block is fixed in the rotor away from the one of collet
End.
6. electromagnet as claimed in claim 2 pine blade automatic tool changing electrical spindle, it is characterised in that if the armature is provided with
Dry fabrication hole.
7. electromagnet as claimed in claim 1 pine blade automatic tool changing electrical spindle, it is characterised in that the stator is set in institute
The middle part of rotor is stated, and the two ends of the rotor are set up separately in the both sides of the stator；
The bearing block includes front-end bearing pedestal and rear bearing block, the stator be arranged on the front-end bearing pedestal and rear bearing block it
Between；
The front-end bearing pedestal is arranged on the stator near the side of the collet；
The rear bearing block is arranged on side of the stator away from the collet；
The front-end bearing pedestal part extension is connected with the rear bearing block.
8. electromagnet as claimed in claim 2 pine blade automatic tool changing electrical spindle, it is characterised in that described also including bearing
Bearing includes fore bearing and rear bearing, and the fore bearing is arranged on stator near the side of the collet, and is set in institute
State on rotor, and with the rotor, front-end bearing pedestal interference fit；
The rear bearing sets side of the stator away from the collet, and is set on the rotor, and with the rotor,
Rear bearing block interference fit；
The rear bearing block laminating is set in the electromagnet outside, and the fixation electromagnet.
9. electromagnet as claimed in claim 7 pine blade automatic tool changing electrical spindle, it is characterised in that the collet with it is fixed
Pull bar part between son is additionally provided with cross nut, and the cross nut is set on the pull bar by screw thread.
10. electromagnet as claimed in claim 7 pine blade automatic tool changing electrical spindle, it is characterised in that also including protecting crust, institute
State protecting crust laminating and be arranged on the rotor outside, and be fixed on the front-end bearing pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039931.6A CN106735334A (en) | 2017-01-18 | 2017-01-18 | Electromagnet pine blade automatic tool changing electrical spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039931.6A CN106735334A (en) | 2017-01-18 | 2017-01-18 | Electromagnet pine blade automatic tool changing electrical spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106735334A true CN106735334A (en) | 2017-05-31 |
Family
ID=58944617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039931.6A Pending CN106735334A (en) | 2017-01-18 | 2017-01-18 | Electromagnet pine blade automatic tool changing electrical spindle |
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| Country | Link |
|---|---|
| CN (1) | CN106735334A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552813A (en) * | 2017-10-18 | 2018-01-09 | 惠州市永晖兴数控科技有限公司 | A kind of machine tool chief axis for being conveniently replaceable blade |
| CN107900733A (en) * | 2017-12-18 | 2018-04-13 | 苏州精锐精密机械有限公司 | Wall-hanging multi-work piece Self adapting fixture |
| CN109676159A (en) * | 2019-01-10 | 2019-04-26 | 深圳九福科技股份有限公司 | Quick automatic tool changer spindle motor |
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| CN206455184U (en) * | 2017-01-18 | 2017-09-01 | 深圳数马电子技术有限公司 | Electromagnet pine blade automatic tool changing electrical spindle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107552813A (en) * | 2017-10-18 | 2018-01-09 | 惠州市永晖兴数控科技有限公司 | A kind of machine tool chief axis for being conveniently replaceable blade |
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| CN109676159A (en) * | 2019-01-10 | 2019-04-26 | 深圳九福科技股份有限公司 | Quick automatic tool changer spindle motor |
| CN109676159B (en) * | 2019-01-10 | 2024-04-09 | 深圳九福科技股份有限公司 | Quick automatic tool changing spindle motor |
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Application publication date: 20170531 |