CN206455184U - Electromagnet pine blade automatic tool changing electrical spindle - Google Patents
Electromagnet pine blade automatic tool changing electrical spindle Download PDFInfo
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- CN206455184U CN206455184U CN201720066709.0U CN201720066709U CN206455184U CN 206455184 U CN206455184 U CN 206455184U CN 201720066709 U CN201720066709 U CN 201720066709U CN 206455184 U CN206455184 U CN 206455184U
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Abstract
The utility model discloses a kind of loose blade automatic tool changing electrical spindle of electromagnet, 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.The utility model is simple in construction, occupies little space, and production cost is low, 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 utility model is related to electro spindle automatic tool changer field, and in particular to a kind of loose blade automatic tool changing electrical master of electromagnet
Axle.
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 ", makes spindle unit is relatively independent from the transmission system and overall structure of lathe to come out,
Therefore " main axle unit " can be made, be 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.Workpiece is after clamped one time, and the control system of lathe can be according to prior establishment
Good numerical control program control lathe automatically selects and exchanged 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 process such as milling, boring, brill, tapping on workpiece, eliminate the repeatedly fixed of workpiece
Other service working times such as position clamping, frock adjustment.Workpiece is also eliminated between process during turnover of workpiece etc. simultaneously
Between, processing cost is substantially reduced, best economic benefit is obtained.So in order to be able to make workpiece to complete multiple tracks work 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.
Existing automatic tool changing electrical spindle is in whole exchanging knives process is completed, and drive device is typically by conventional motor or liquid
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, and whole knife-changing system is complicated and bulky, and space-consuming is big, is not suitable for high-volume
Miniature numerical control lathe is assembled, and it is complicated, design process is cumbersome, easily error, and cost is high.
Utility model content
Main purpose of the present utility model is a kind of loose blade automatic tool changing electrical spindle of electromagnet simple in construction of offer.
The utility model proposes a kind of loose blade automatic tool changing electrical spindle of electromagnet, including bearing block and motor, the electricity
Machine includes rotor and stator, and the rotor is the hollow-core construction with perforation, and the bearing block closes on to be set on the outside of the rotor
Put, and the affixed stator, in addition to：
Pull bar, in the perforation for being arranged in the rotor, and makes two ends pass the perforation, 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 is electromagnet, and the driven member is armature, and the armature is remote located at the pull bar
One end of collet, the electromagnet is located at the armature close to the side of collet.
Further, the armature is in the middle part of round pie, armature and threaded one end of 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 close to 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 close to 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, in addition to bearing, the bearing includes fore bearing and rear bearing, and the fore bearing is arranged on stator and leaned on
The side of the nearly collet, and be set on the rotor, and be interference fitted with the rotor, front-end bearing pedestal；
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 on the outside of the electromagnet, and the fixed 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, in addition to protecting crust, the protecting crust laminating is arranged on the outside of the rotor, and be fixed in it is described before
On bearing block.
The beneficial effects of the utility model：Traditional air pressure or hydraulic-driven masterpiece is replaced to be Song Daoli using electromagnetic force,
Only need to control solenoid circuit break-make, in the case where not changing electromagnet volume size, by changing electromagnetism Tie Tong
The size of how much control electromagnetic forces of electric current or coil turn, strong applicability, and need not add cylinder, hydraulic cylinder etc. is attached
Oil (gas) filling device, volume is greatly reduced, and saves space, effectively overcomes existing pneumatic tool changing electrical spindle or the loose blade automatic tool changer of hydraulic pressure
The tradition automatic tool changing electrical spindle such as electro spindle is complicated, need the defect such as addition optional equipment, bulky, can be preferable
Applied to 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 the loose blade automatic tool changing electrical spindle of electromagnet of the embodiment of the utility model one；
Fig. 2 is that a kind of loose blade automatic tool changing electrical spindle of electromagnet of the embodiment of the utility model one is not changing cutting tool state
Under cut-away view；
Fig. 3 is a kind of loose blade automatic tool changing electrical spindle of electromagnet of the embodiment of the utility model one in the case where changing cutting tool state
Cut-away view；
Fig. 4 is a kind of structural representation of the armature of the loose blade automatic tool changing electrical spindle of electromagnet of the embodiment of the utility model one
Figure.
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
It is to be appreciated that institute is directional in the utility model embodiment indicates (such as up, down, left, right, before and after ...)
Relative position relation, motion conditions for being only used for explaining under a certain particular pose (as shown in drawings) between each part etc., such as
When really the particular pose changes, then directionality indicates also correspondingly therewith to change.
In addition, the description for being related to " first ", " second " etc. in the utility model is only used for describing purpose, without being understood that
To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can 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
It will be understood that the combination of this technical scheme is not present when appearance is conflicting or can not realize, also not in the utility model requirement
Protection domain within.
Reference picture 1-4, the utility model proposes a kind of loose blade automatic tool changing electrical spindle of electromagnet, including bearing block and electricity
Machine, 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, in addition to pull bar 9, in the perforation for being arranged in rotor 5, and two ends is passed perforation, one end of pull bar 9 is knife
Has 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
Component includes driving link and driven member, and driven member is fixed on pull bar 9, and driving link closes on driven on the direction at the two ends of pull bar 9
Part is set；Component is replied, is contacted with the driven member.
The utility model replaces traditional air pressure or hydraulic-driven masterpiece to be Song Daoli using electromagnetic force, it is only necessary to control electricity
The connecting and disconnecting of the circuit of magnet 15, in the case where not changing the volume size of electromagnet 15, by changing the electrical current of electromagnet 15
Or the size of how much control electromagnetic forces of coil turn, strong applicability, and need not add cylinder, hydraulic cylinder etc. is additional to be set
Standby, volume is greatly reduced, and saves space, effectively overcomes existing pneumatic tool changing electrical spindle or the loose blade automatic tool changing electrical master of hydraulic pressure
The tradition automatic tool changing electrical spindle such as axle is complicated, need the defect such as addition optional equipment, bulky, and the utility model knot
Structure is simple, convenient operation, preferably can be applied in the mini formula digital control processing of miniature numerical control machining center, particularly desktop type
The heart.
In the utility model embodiment, bearing block is used for other portions for directly or indirectly protecting and fixing supporting electric main shaft
Part, bearing block is 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 coordinate 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
In, you can to reduce space-consuming, pull bar 9 again can be injury-free in the protection of rotor 5.In embodiment of the present utility model
In, pull bar 9 is arranged in rotor 5, the two ends of pull bar 9 pass rotor 5 length can according to the structure sets itself of electro spindle, with
Coordinate electro spindle preferably to work, for example, the length that knife end can pass rotor 5 can be shorter, do not pass even, pull bar
The length that 9 one end away from knife end pass pull bar 9 can be longer, to coordinate the installation of electromagnetic assembly, it will be understood that pull bar 9
Shape can also be set to the shape cooperated with miscellaneous part according to the structure of rotor 5 and miscellaneous part, not only limit
In cylindric, or part-cylindrical.
In the utility model embodiment, connected between the knife end and rotor 5 of pull bar 9 by collet 6, elastic clip
First 6 with rotor 5 perforation the conical surface be connected, and with pull bar 9, rotor 5 laminating contact, rotor 5 fit collet 6 the conical surface be from
The inside diminishing conical surface in aperture of the end perforation of rotor 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 embodiment of the present utility model, the connection of rotor 5 and collet 6 can not be cone
Face is connected, it is only necessary to ensure electro spindle operationally, and rotor 5 coordinates the clamp-on tool end of collet 6, needs to change in electro spindle
During cutter, collet 6 can be by converting with the contact area of rotor 5 or the way of contact so that collet 6 loosens pair
The extruding of the knife end 9 of pull bar, the shape of collet 6 is also not limited to collet or the shape similar to collet
Shape, it is all the utility model scope of the claimed that 6 need of collet as described above, which meet above-mentioned effect,；Collet 6 can
To be fixed on pull bar 9, it can also be connected through a screw thread or other connections are installed on pull bar 9, it is of the present utility model to implement
In example, by extruding force of the electromagnetic assembly control collet 6 to the knife end of pull bar 9, it is not limited to using electromagnetism group
Part, as described above, need to only control electro spindle operationally with changing to the extruding force of knife end during cutter, so can be with
All it is that the utility model will be protected in the method for the effect for reaching the control extruding force of collet 6 using other compression, screens etc.
The scope of shield, that is to say, that to realize the above-mentioned purpose method of collet 6 or the method extended, is all the utility model protection
Scope, but the utility model preferentially using electromagnetic assembly control the extruding force of collet 6 because electromagnetic assembly is easily controllable,
It is with low cost, it is simple in construction.Collet 6 of the present utility model also preferentially uses collet, and collet and rotor 5 with
The mode of conical surface connection, because conical surface connection makes collet contact with rotor 5 effect preferably, and collet is more toward rotor
Moved in 5 perforation, the extruding force to the knife end of pull bar 9 is bigger, by controlling collet putting in the perforated tip of rotor 5
Length, you can realize extruding of the control collet to knife end, and after conical surface connection, coordinate electromagnetic assembly, it is easier to be real
Now automatically control, greatly reduce many unnecessary operating process.
In embodiment of the present utility model, in addition to electromagnetic assembly, electromagnetic assembly includes driving link and driven member, actively
Part and driven member are cooperated, and driven member is fixed on pull bar 9, when electro spindle needs to change cutter, and driving link is to driven member
Power, or driven member are provided actively close to driving link, makes driven member drive pull bar 9 to move, and by knife end and collet 6
The perforation of rotor 5 is released in part, electro spindle is realized loose knife, it will be understood that the method extended to achieve these goals,
All in the range of the utility model protection, however it is not limited to which electromagnetic material, certainly, the utility model preferentially use electromagnetic material,
For example when driving link and driven member can be powered on making it have magnetic, the principle setting driving link that can be repelled by same polarity
With driven member, for example, driving link is located at side of the driven member away from collet 6, it will be understood that when driving link or driven
One in part when can be powered with magnetic, is correspondingly arranged suitable position, and when electro spindle is needed to change cutter, driven member can
Knife end and the part of collet 6 are released to the perforated tip of rotor 5 in the presence of electromagnetic force.The mesh of the setting of electromagnetic assembly
, be in order to control collet 6 to the extruding force of knife end, so electromagnetic assembly can also be set in many ways, with
Extruding of the collet 6 to knife end is closed, as described above, collet 6 is connected with rotor 5 by the conical surface, by controlling elasticity
Chuck 6 puts in length the end of rotor 5, to realize extruding of the control collet 6 to knife end.Due to collet 6
It is configured in the knife end of pull bar 9, so electromagnetic assembly can be arranged on part of the pull bar 9 away from collet 6, for example, set
In the other end of pull bar 9, either between collet 6 and part between stator 10 or the other end of pull bar 9 and stator 10
Part, electromagnetic assembly is preferentially arranged on the outside of the other end of the pull bar 9 away from knife end by the utility model embodiment, and with
Pull bar 9 is connected, so that electro spindle is easily controllable and dismounting, after electromagnetic assembly is connected with pull bar 9, by the electricity for controlling electromagnetic assembly
Way switch, with regard to collet 6 can be controlled in the perforation amount of putting in of rotor 5, in use, after electromagnetic assembly is powered, by pull bar 9
The perforation of rotor 5 is released, because collet 6 is installed on pull bar 9, so collet 6 is released with pull bar 9 by together with
In the perforation of rotor 5, 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 installed between knife end and stator 10, or be installed in the other end of the pull bar 9 away from knife end and stator 10 it
Between, effect is also the length for controlling collet 6 to put in the perforation of rotor 5, but when being installed in above-mentioned two position, the knot of electro spindle
Structure will be complex, and the process of making is also relatively complicated, and production cost is higher, and disassembling, assembling and replacing part also more takes time and effort.
In the utility model embodiment, in addition to component is replied, reply component and contacted with driven member.Reply the work of component
With the perforation of to be electromagnetic assembly release pull bar 9 and the part of collet 6 rotor 5, knife end is more finished changing after cutter, by elasticity
Chuck 6 and pull bar 9 are returned to the state before electromagnetic assembly is pushed out, and pull bar 9 is tensed collet 6, to prevent
Collet is loosened when that need not change cutter, and reply component can be set according to the position of driven member between the two ends of pull bar 9.
Likewise, replying the form of component can also have in diversified forms, the utility model embodiment, by controlling to reply component with regard to energy
Pull bar 9 and collet 6 are returned to the state before electromagnetic assembly is pushed out, replying component can be by individually controlling
Device is controlled, i.e., after knife end is by cutter changing, by individually controlling to reply component, indirect control pull bar 9 and elasticity
Chuck 6, can also be selected after being cooperated with electromagnetic assembly, it is possible to realize the reply component for replying effect, such as spring,
The utility model embodiment is preferred to use the mode that component cooperates with electromagnetic assembly of replying, to save manufacturing cost.Return
The shape of multiple component 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 be arranged between the two ends of pull bar 9 according to the position of driven member, as long as can realize pull bar 9 and collet
6 are returned to the state before electromagnetic assembly is pushed out and pull bar is tensed collet when that need not change cutter,
When replying component with driven member mutual cooperation, replying component can be set on pull bar 9, can also close on pull bar 9 and set, but
The control to pull bar 9 is realized, directly or indirectly can be connected with pull bar 9, the reply component described in the utility model and pull bar 9
Connection, which includes, to be directly connected to and is indirectly connected with, what the utility model embodiment was preferentially indirectly connected with using reply component with pull bar
Mode, when replying component and 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 located at armature 17 close to the side of collet 6,
And contacted with armature 17.Disc spring 16 can be set on pull bar 9, can not also be set on pull bar 9, one end of disc spring 16 and rank
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., miscellaneous part can also be included by replying component, 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 present utility model 15 for processing in workpiece fabrication,
When rotor 5 is rotated, the part for driving pull bar 9 by collet 6 and being contacted with pull bar 9 is rotated, the part contacted with pull bar 9
It can be the part that electromagnetic assembly is connected with pull bar 9, and when reply component is set to be directly connected to pull bar 9, for example, return
When multiple component is set on pull bar 9.When electro spindle needs tool changing, after electromagnetic assembly is powered, by pull bar 9 and pull bar is installed in
Collet 6 on 9 is released, and the knife end of pull bar 9 changes reply component after cutter and is returned to collet 6 and pull bar 9
Electromagnetic assembly be pushed out before state, when replying component and electromagnetic assembly and cooperating, reply component and pass through and promote electricity
The part that magnetic assembly 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 15 of the utility model, electromagnetism
Component includes electromagnet 15 and armature 17, and armature 17 is located at the one end of pull bar 9 away from collet 6, and electromagnet 15 is located at armature
17 close to the side of collet 6, and closes on the armature 17.In the utility model embodiment, after electromagnet 15 is powered, one
As be closest to the one side of armature 17 there is magnetic, other faces do not set magnetic, to prevent the effect of magnetic influence electricity of electromagnet 15 main
The normal work of axle miscellaneous part.When electro spindle need not change cutter, electromagnet 15 separates with armature 17 but closes on setting, rank
Iron 17 is arranged on the one end of pull bar 9 away from collet 6, and electromagnet 15 is located at armature 17 close to the side of collet 6, electromagnetism
Iron 15 can be fixed on bearing block, can also be fixed on the stator 10 of motor, or be indirectly fixed to by miscellaneous part
On bearing block or stator 10, when electro spindle needs to change cutter, after electromagnet 15 is powered, armature 17 is pulled into electricity using magnetic force
The direction of magnet 15, 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
Between armature 17, 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 the end of rotor 5 is released in the part of collet 6, to reach the effect of the loose knife of the knife end of pull bar 9, change after cutter, by returning
The state that collet 6 and pull bar 9 will be returned to before electromagnetic assembly is pushed out by multiple component, the magnetic of electromagnet 15 can
With how much controls by changing the electrical current of electromagnet 15 or coil turn.And reply component elasticity recovery chuck 6 with
And pull bar 9 state when, electromagnet can be prevented by controlling the electric current of electromagnet 15 to be reduced slowly the magnetic force of electromagnet 15
15 suddenly when losing magnetic 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 the middle part of armature 17 is connected with threaded one end of the pull bar 9 away from collet 6,
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, the one end of pull bar 9 away from collet 6 is additionally provided with the first locking nut 18 by armature
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 the position set will be some more, and when adsorbing armature 17 after the energization of electromagnet 15, 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 reality that electromagnet 15, which is fixed on bearing block,
With new more preferred mode, the face adjacent with electromagnet 15 of armature 17 is parallel to each other, preferential, by electromagnet 15 and armature
17 adjacent two sides set size close or identical area, so that electromagnet 15 coordinates preferably with armature 17, electromagnet 15
The face adjacent with armature 17 is parallel to each other, and size it is of substantially equal when, the absorption affinity of electromagnet 15 is basic one with pull bar 9
On bar straight line, it is to avoid shear action of the electromagnetic force to pull bar 9, and prevent the frictional force of pull bar 9 and rotor 5 excessive, institute
With the preferred outside that electromagnet 15 is set in pull bar 9 of the utility model, to coordinate the armature 17 of round pie, make electromagnetic assembly
Action effect reach it is best.
Reference picture 2-3, in another embodiment of the utility model, replys component and is made up of cushion block 14 with some disc springs 16,
Disc spring 16 is 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
On cushion block 14, cushion block 14 is fixed in the one end of rotor 5 away from collet 6.In embodiment of the present utility model, disc spring 16 can
To be constituted disc spring group by some disc springs 16, the quantity of disc spring 16 can be ten, 16 or other, according to the chi of electro spindle
Very little quantification so that the working condition of electro spindle reach it is best, in the utility model the two ends of disc spring 16 respectively with armature 17,
Cushion block 14 is contacted.Preferential, two ends are separately fixed on armature 17 and cushion block 14 in the utility model, when electro spindle is used to process
During workpiece, armature 17, disc spring 16 with cushion block 14 together as pull bar 9 is rotated, so that each several part part that is contacted with pull bar 9 can be same
Step is operated, also, the two ends of disc spring 16 are separately fixed on armature 17 and cushion block 14, after precompressed is carried out to disc spring 16, disc spring 16
One end push down after cushion block 14, the other end is acted on driven member, and then collet 6 is tensed.Cushion block 14 is used for reducing dish
The quantity of spring 16, or shorten the length of disc spring 16, so as to reduce Song Daoli, cushion block 14 is fixed on the second locking nut 13, the
Two locking nuts 13 are connected by screw thread with one end of the remote collet 6 of rotor 5, in embodiment of the present utility model,
Cushion block 14 is shaped to annular shape, and when the second locking nut 13 is connected with rotor 5, cushion block 14 is also set on pull bar 9, therefore
Reply the pull bar 9 that disc spring 16 and cushion block 14 in component are arranged between one end of the remote collet 6 of rotor 5 and armature 17
On, it will be understood that the set-up mode of above-mentioned reply component is a kind of preferred embodiment of the utility model, in other embodiment
In, other shapes can also be arranged to and realize by other means by replying component, for example, being filled when replying component by electromagnetic assembly
At that time, electromagnet 15 was arranged on the both sides of armature 17, was powered off by controlling the electromagnet 15 of the both sides of armature 17 to be powered, it is possible to control
The amount of putting in of pull bar 9 and collet 6 processed in the end of rotor 5.In other embodiments, reply component can by collet 6 with
And pull bar 9 is returned to the shape and set-up mode of the state before electromagnetic assembly is pushed out all in protection of the present utility model
Within the scope of.
Reference picture 1-3, in another preferred embodiment of the present utility model, stator 10 is set in the middle part of rotor 5, and
The two ends of rotor 5 are set up separately in the both sides of stator 10；Bearing block includes front-end bearing pedestal 1 and rear bearing block 11, and stator 10 is arranged on
Between front-end bearing pedestal 1 and rear bearing block 11, and stator 10 is fixed；Front-end bearing pedestal 1 is arranged on stator 10 close to 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 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 close to collet 6
Side, and be set on rotor 5, and be interference fitted with rotor 5, front-end bearing pedestal 1；Bearing 12 sets stator 10 away from elastic clip afterwards
First 6 side, and be set on rotor 5, and be interference fitted with rotor 5, rear bearing block 11.Bearing block is divided into front-end bearing pedestal 1
With rear bearing block 11, it is easy to dismount, stator 10 is fixed on centre by front-end bearing pedestal 1 with rear bearing block 11, does not wrap stator 10
Cover 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 the energy of rotor 5
Stably carry out high-speed rotation, fore bearing 7 is interference fitted with front-end bearing pedestal 1, rotor 5 respectively, rear bearing 12 respectively with rear bearing
Seat 11, rotor 5 are interference fitted so that combine closely to form an entirety between the part of electro spindle each several part.When reply component
When being made up of disc spring 16 and cushion block 14, the second locking nut 13 is threaded in turning for side of the stator 10 away from collet 6
On son 5, it can will not only be fixed with disc spring 16 with cushion block 14 for the reply component of part, can also will be arranged on the second locking
Rear bearing 12 between nut 13 and stator 10 is locked between the second locking nut 13 and stator 10, when preventing high-speed motion,
Bearing 12 is unexpected afterwards comes off, further, when electromagnetic assembly is made up of electromagnet 15 and armature 17, the laminating set of rear bearing block 11
It is located at the outside of electromagnet 15, and the fixed electromagnet 15.
Further, when electromagnetic assembly is made up of electromagnet 15, armature 17, reply component and be made up of disc spring 16 with cushion block 14
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, 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 is by compression certain length, such as 2mm or 4mm, and collet 6 and pull bar 9 are released to the rotor of motor
5 perforation certain distances, such as 2mm or 4mm, 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 in by screw thread on pull bar 9, 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 passes through 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 domain of the present utility model is belonged to, certainly preferably easy-disassembling-assembling installing mode.
Also include protecting crust in further the utility model embodiment, protecting crust laminating is arranged on the outside of rotor 5,
And be fixed on the front-end bearing pedestal 1.Protecting crust includes interior protecting crust 3 and outer protecting crust 2, and two protecting crusts dual can not only be prevented
Dirt, or the increase of one end provided with collet 6 support force of rotor 5, is prevented after a number of uses, the end of rotor 5
Perforation 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 7 pairs of fore bearing and prevents
The extruding of protecting cover.
The present embodiment adsorbs armature 17 when in use, by the absorption affinity of electromagnet 15 and moved to the direction of collet 6, 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
Move, and the knife end of pull bar 9 and collet 6 are released in the perforation of rotor 5, 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, now, and 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 and is set on pull bar 9 back-to-back, pull bar 9 is in disc spring
The lower tension collet of elastic force effect produced after group precompressed 2mm, so that 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 close to 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 to be provided with an end motion of collet 6 to rotor 5, and collet is pushed away
Go out the perforation 2mm of rotor 5, realize loose knife process；Main shaft is changed after target tool, and 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 utility model replaces traditional air pressure or hydraulic-driven masterpiece to be Song Daoli using electromagnetic force, it is only necessary to control electricity
The connecting and disconnecting of the circuit of magnet 15, in the case where not changing the volume size of electromagnet 15, by changing the electrical current of electromagnet 15
Or the size of how much control electromagnetic forces of coil turn, strong applicability, and need not add cylinder, hydraulic cylinder etc. is additional to be set
Standby, volume is greatly reduced, and saves space, effectively overcomes existing pneumatic tool changing electrical spindle or the loose blade automatic tool changing electrical master of hydraulic pressure
The tradition automatic tool changing electrical spindle such as axle is complicated, need the defect such as addition optional equipment, bulky, can preferably apply
In the mini formula numerical control machining center of miniature numerical control machining center, particularly desktop type.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
Equivalent structure or equivalent flow conversion that every utilization the utility model specification and accompanying drawing content are made, or directly or indirectly fortune
Used in other related technical fields, similarly it is included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of loose blade automatic tool changing electrical spindle of electromagnet, 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, in the perforation for being arranged in the rotor, and makes two ends pass the perforation, 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 set；
Component is replied, is contacted with the driven member.
2. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 1, 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 close to the side of collet.
3. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 2, it is characterised in that the armature is cake
It is connected in the middle part of shape, armature with threaded one end of the pull bar away from collet, and it is 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. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 2 or claim 3, it is characterised in that the reply component
It is made up of some disc springs, the disc spring is contacted located at the armature close to the side of collet, and with the armature.
5. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 3, 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 one of the rotor away from collet
End.
6. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 2, it is characterised in that if the armature is provided with
Dry fabrication hole.
7. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 1, 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 close to 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. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 2, it is characterised in that described also including bearing
Bearing includes fore bearing and rear bearing, and the fore bearing is arranged on stator close to the side of the collet, and is set in institute
State on rotor, and be interference fitted with the rotor, front-end bearing pedestal；
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 is interference fitted；
The rear bearing block laminating is set on the outside of the electromagnet, and the fixed electromagnet.
9. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 7, it is characterised in that the collet is with determining
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. the loose blade automatic tool changing electrical spindle of electromagnet as claimed in claim 7, it is characterised in that also including protecting crust, institute
State protecting crust laminating to be arranged on the outside of the rotor, and be fixed on the front-end bearing pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066709.0U CN206455184U (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 |
|---|---|---|---|
| CN201720066709.0U CN206455184U (en) | 2017-01-18 | 2017-01-18 | Electromagnet pine blade automatic tool changing electrical spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206455184U true CN206455184U (en) | 2017-09-01 |
Family
ID=59695808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720066709.0U Active CN206455184U (en) | 2017-01-18 | 2017-01-18 | Electromagnet pine blade automatic tool changing electrical spindle |
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| Country | Link |
|---|---|
| CN (1) | CN206455184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735334A (en) * | 2017-01-18 | 2017-05-31 | 深圳数马电子技术有限公司 | Electromagnet pine blade automatic tool changing electrical spindle |
| 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 |
-
2017
- 2017-01-18 CN CN201720066709.0U patent/CN206455184U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735334A (en) * | 2017-01-18 | 2017-05-31 | 深圳数马电子技术有限公司 | Electromagnet pine blade automatic tool changing electrical spindle |
| 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 |
| CN107552813B (en) * | 2017-10-18 | 2024-02-13 | 惠州市永晖兴数控科技有限公司 | Lathe main shaft convenient to change blade |
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