CN209021249U - A kind of electric chief axis system - Google Patents
A kind of electric chief axis system Download PDFInfo
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- CN209021249U CN209021249U CN201821420299.6U CN201821420299U CN209021249U CN 209021249 U CN209021249 U CN 209021249U CN 201821420299 U CN201821420299 U CN 201821420299U CN 209021249 U CN209021249 U CN 209021249U
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- chief axis
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Abstract
A kind of electric chief axis system provided by the utility model, it include: floating cylinder device and spindle motor device, the floating cylinder device includes outer cylinder body and stacks the inner cylinder body to float up and down formed by several piston components, the utility model is as being connected with the pulling plate for fixing the mandrel by nut described in drawing in the lower part of the inner cylinder body, it is provided in the shell and is connected to the groove portion and for controlling the first air flue that the inner cylinder body moves down, the second air flue forged a knife is contacted with the tool changing pull rod for driving the piston to move down in being provided centrally with for the rear cover, the third air flue separated for controlling the piston with the tool changing pull rod is provided in the plug sleeve, controlling inner cylinder body floating by air flue air inlet when tool changing drives pulling plate fixed rotor axle core component to undertake split bearing stress, reduce Impact when tool changing to bearing improves bearing service life.
Description
Technical field
The utility model relates to electro spindle field more particularly to a kind of electric chief axis systems.
Background technique
Existing electro spindle since in tool changing, for piston effect on tool changing pull rod, tool changing pull rod is mounted on the inside of mandrel,
Piston can be transmitted on mandrel the active force of tool changing pull rod by tool changing pull rod, then be transmitted to the bearing of used fixed central spindle
On, so that impact when bearing will bear each tool changing, causes the service life of bearing to decline.
Therefore, the existing technology needs to be improved and developed.
Utility model content
In view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of electric chief axis systems, it is intended to solve
The technical issues of mandrel stress causes bearing life to shorten greatly in certainly existing electro spindle cylinder tool changing device exchanging knives process.
The technical solution of the utility model is as follows:
A kind of electric chief axis system, wherein include: floating cylinder device and spindle motor device, the floating cylinder dress
Set including outer cylinder body and be arranged in inside the outer cylinder body by several piston components stack form float up and down in
Cylinder body, the spindle motor device include stator casing component and the rotor central spindle that the stator casing component internal is arranged in
Component, the top of the rotor axle core component are provided with nut, and the lower part of the inner cylinder body is connected with for by described in drawing
The pulling plate of the fixed rotor axle core component of nut；Be provided with ear on the lateral surface of the inner cylinder body, the outer cylinder body it is interior
Groove portion is provided on side, the ear is fitted in the groove portion and can float up and down along the groove portion；The outer cylinder body packet
Shell, front cover and rear cover are included, the piston component includes piston and plug sleeve, and the rotor axle core component includes mandrel and sets
The tool changing pull rod inside the mandrel is set, is provided in the shell and is connected to the groove portion and for driving under the ear
In-migration controls the first air flue that the inner cylinder body moves down, and the rear cover is provided centrally with for driving the piston to move down and institute
State the second air flue that the contact of tool changing pull rod carries out tool changing；It is provided in the plug sleeve and is drawn for controlling the piston and the tool changing
The third air flue of bar separation.
The electric chief axis system, wherein the lateral surface of the mandrel is disposed with the diameter of axle from the bottom to top and gradually successively decreases
The first ladder, the second ladder, third ladder and fourth order ladder, on second ladder, third ladder and fourth order ladder respectively
Be arranged with lower cover, lower bearing and rotor, the stator casing component includes body fuselage, the inside of the body fuselage by
Upper bearing (metal) and stator are disposed under, the mandrel is mounted on the body fuselage by the lower part of the body fuselage
Inside.
The electric chief axis system, wherein first ladder is outward extended with dust-proof end cap.
The electric chief axis system, wherein the first cover board and the second cover board, institute are arranged at intervals with inside the body fuselage
It states and is provided with top chock between the first cover board and the second cover board, rolling is provided between the top chock and the body fuselage
Bead sleeve, the upper bearing (metal) are fixed on the interior of shell by the top chock.
The electric chief axis system, wherein be provided with preloading spring between second cover board and the top chock.
The electric chief axis system, wherein the both ends of the lower bearing pass through respectively washer and lower bearing locking nut into
Row fix, the both ends of the rotor pass through lower bearing locking nut respectively and rotor fixture nut is fixed, the rotor and
Connecting bolt is provided between lower bearing locking nut.
The electric chief axis system, wherein the piston component is provided with 5 groups, from top to bottom successively includes first stage piston
Component, second piston component, three-level piston component, level Four piston component and ejector piston component, the first stage piston component,
The center of the piston of second piston component, three-level piston component and level Four piston component, which is extended, the second air flue.
The electric chief axis system, wherein the contact position and plug sleeve of adjacent pistons component and the contact position of piston
It is provided with sealing ring.
The electric chief axis system, wherein the piston is T-type piston, and the T-type piston includes lateral top and erects
To axle portion, second air flue is arranged in the vertical axle portion of the T-type piston, is arranged on the laterally top of the T-type piston
There is the groove for driving the inner cylinder body to float convenient for gas storage.
The electric chief axis system, wherein be provided with convex block on the medial surface of the mandrel, be arranged on the tool changing pull rod
There are disc spring, the disc spring and the bump contact and the recovery for tool changing pull rod after tool changing.
The utility model has the advantages that a kind of electric chief axis system provided by the utility model, comprising: floating cylinder device and spindle motor
Device, the floating cylinder device include outer cylinder body and stack the inner casing to float up and down formed by several piston components
Body, the utility model in the lower part of the inner cylinder body as being connected with for fixing the mandrel by nut described in drawing
Pulling plate is provided in the shell and is connected to the groove portion and is used to control the first air flue that the inner cylinder body moves down, in institute
It states being provided centrally with for rear cover and contacts the second air flue forged a knife with the tool changing pull rod for driving the piston to move down,
Be provided with the third air flue separated for controlling the piston with the tool changing pull rod in the plug sleeve, when tool changing by air flue into
Gas control inner cylinder body, which floats, drives pulling plate fixed rotor axle core component to undertake split bearing stress, to bearing when reducing tool changing
Impact improves bearing service life.
Detailed description of the invention
Fig. 1 is a kind of configuration schematic diagram of electric chief axis system of the utility model.
Fig. 2 is a kind of the schematic diagram of the section structure of electric chief axis system of the utility model.
Fig. 3 is a kind of floating cylinder device the schematic diagram of the section structure of electric chief axis system of the utility model.
Fig. 4 is a kind of spindle motor device the schematic diagram of the section structure of electric chief axis system of the utility model.
Specific embodiment
A kind of electric chief axis system provided by the utility model, to make the purpose of this utility model, technical solution and effect more
Add clear, clear, the utility model is further described below.It should be appreciated that specific embodiment described herein is only
Only to explain the utility model, it is not used to limit the utility model.
Refering to fig. 1 and Fig. 2, a kind of electric chief axis system of the utility model, comprising: floating cylinder device 10 and main shaft electricity
Machine device 20, if the floating cylinder device 10 include outer cylinder body 30 and be arranged in inside the outer cylinder body by stem piston group
Part stacks the inner cylinder body 40 of composition to float up and down, and the spindle motor device 20 includes stator casing component 50 and setting
The top of the rotor axle core component 60 of the stator casing component internal, the rotor axle core component 60 is provided with nut 70；
Referring to Fig. 3, the lower part of the inner cylinder body 40 is connected with for the drawing by the fixed rotor axle core component of nut described in drawing
Disk 80 is provided with ear 90 on the lateral surface of the inner cylinder body 40, is provided with groove portion 100 on the medial surface of the outer cylinder body 30,
The ear is fitted in the groove portion and can float up and down along the groove portion；Referring to fig. 4, the rotor axle core component 60 includes
Mandrel 110 and the tool changing pull rod 120 being arranged in inside the mandrel, nut setting on the mandrel, referring to Fig. 3,
The outer cylinder body 30 includes shell 130, front cover 140 and rear cover 150, and the piston component includes piston 160 and plug sleeve 170,
It is provided in the shell 130 and is connected to the groove portion and for driving in-migration under the ear to control what the inner cylinder body moved down
First air flue 180, being provided centrally with for the rear cover 150 contact progress with the tool changing pull rod for driving the piston to move down
Second gas 190 of tool changing；The third gas separated for controlling the piston with the tool changing pull rod is provided in the plug sleeve 170
Road 200.
Existing electro spindle is since in tool changing, piston effect is on tool changing pull rod, and tool changing pull rod is mounted on mandrel, piston
The active force of tool changing pull rod can be transmitted on mandrel by tool changing pull rod, then be transmitted to the bearing for fixed central spindle, from
And impact when bearing being made to bear each tool changing, cause the service life of bearing to decline, technical solutions of the utility model by
In the inner cylinder body that can be floated up and down in the setting of the inside of outer cylinder body, and in the lower part of inner cylinder body, setting is used for fixed rotor central spindle group
The pulling plate of part mandrel top nut undertakes part mandrel stress by pulling plate when tool changing, and impact when reducing tool changing to bearing mentions
High bearing service life.
Specifically, the floating cylinder electro spindle in the utility model is in tool changing, by the collective effect of three air flues come
It realizes, exchanging knives process, the second air flue air inlet at rear cover center, piston moves down, living after the tool changing pull rod of the piston top side of staying
The inside of plug assembly starts gas storage, and the nut on mandrel is lived in the dynamic pulling plate drawing of shipper pole to inner cylinder body on the whole, mandrel is fixed, inner casing
After body floats up to extreme higher position, at this point, piston continues to move down, the tool changing pull rod in mandrel is released, realizes tool changing.
After tool changing is completed, the third air flue air inlet in intracorporal first air flue of outer cylinder body shell and inner cylinder body plug sleeve, wherein
First air flue air inlet pushes inner cylinder body integrally to move down, and the nut separation in pulling plate and mandrel, third air flue air inlet pushes on piston
It moves and is separated with the realization of tool changing pull rod.
Referring to fig. 4, in preferred embodiment, the lateral surface of the mandrel 110 is disposed with the diameter of axle from the bottom to top and gradually successively decreases
The first ladder 210, the second ladder 220, third ladder 230 and fourth order ladder 240, second ladder, third ladder and
Lower cover 250, lower bearing 260 and rotor 270 are arranged on four-step respectively, the stator casing component 50 includes outside body
Shell 280, the inside of the body fuselage are from top to bottom disposed with upper bearing (metal) 290 and stator 300, and the mandrel passes through described
The lower part of body fuselage is mounted on the inside of the body fuselage, wherein lower cover and the second ladder gap setting, lower cover connect
It connects and is fixed on body fuselage, do not rotated with mandrel.
The spindle motor assembly of existing electro spindle, rotor axle core component is packed by the upper end of stator casing component, in order to just
In installation, at this point, the diameter of axle of the lower end of the mandrel in rotor axle core component can not design it is bigger, and in order to realize that mandrel is higher
Revolving speed, the diameter of mandrel entirety must just become smaller, and the diameter of mandrel entirety becomes smaller, and because set in the inner cavity of the lower end of mandrel
It is equipped with tool changing pulling claw, the lower end diameter rear mandrel wall thickness that becomes smaller must become smaller, and long-term tool changing operation is easy to cause mandrel lower end to deform
Either split.The utility model is by optimization design axle core component structure, and in the lower end of mandrel, the design diameter of axle is gradually smaller
Ladder installs axle core component for installing lower cover, lower bearing and rotor, and using by stator casing component lower section upwards
The setting of mounting structure, hierarchic structure can make mandrel front end be strengthened, thus improve rotor axle core component higher
Revolving speed under can still have long service life.
In preferred scheme, first ladder is outward extended with dust-proof end cap 310.Dust-proof end cap is integrally set with mandrel
It sets, not only ensure that the secured of dust-proof end cap, but also external dust granule can be effectively prevent to enter motor from the bottom of motor
Inside cause the damage of motor.
In preferred embodiment, it is arranged at intervals with the first cover board 320 and the second cover board 330 inside the body fuselage, described
It is provided with top chock 340 between one cover board and the second cover board, rolling is provided between the top chock and the body fuselage
Bead sleeve 350, the upper bearing (metal) are fixed on the interior of shell by the top chock.Specifically, setting inside body fuselage
There is convex shoulder, the first cover board is overlapped on convex shoulder position, upper bearing (metal) mounting base is provided with above the first cover board, certainly, for convenience
Installation and taking-up of the bearing mounting base in body fuselage, are provided with ball sleeve between the top chock and shell, and first
It is attached between cover board, bearing mounting base and the second cover board by screw.
Specifically, the both ends of the lower bearing pass through washer 360 respectively and lower bearing locking nut 370 is fixed, pad
Circle is provided with gap, lower axle bearing outer-ring is by being full of for fixing lower bearing inner ring between lower bearing locking nut and body fuselage
Cooperation is fixed on body fuselage inner wall, and the both ends of gap setting between washer and lower cover, the rotor pass through lower bearing respectively
Locking nut 370 and rotor fixture nut 380 are fixed, and connection is provided between the rotor and lower bearing locking nut and is inserted
Pin 390.It is provided with rotor above lower bearing locking nut, which is set on third ladder, due to rotor needs and core
Axis bears high revolving speed together, in order to guarantee the bonding strength of rotor, also carries out between lower bearing locking nut and rotor slotting
Pin connection, naturally it is also possible to rotor and lower bearing locking nut are attached fixation, body fuselage by the way of key connection
Lower part be provided with lower bearing installation inner cavity, which extends internally and has limiting section, which is used for outside to lower bearing
Circle is limited, and lower bearing and stator contact are prevented, it is preferred that the lower bearing is provided with 2, and leads between adjacent lower bearing
It crosses spacer to separate, prevents the stress between bearing from concentrating.
In preferred embodiment, preloading spring is provided between second cover board and the top chock.To top chock into
Row pre-tightens, and is the rigidity of the running accuracy and increase support in order to improve bearing, reduces vibration when axis work.
Referring to Fig. 3, in preferred embodiment, the piston component is provided with 5 groups, from top to bottom successively includes first stage piston component
400, second piston component 410, three-level piston component 420, level Four piston component 430 and ejector piston component 440, described one
Grade piston component, second piston component, three-level piston component and level Four piston component the center of piston be extended and have the
Two air flues.Piston component in the utility model is arranged 5 groups, since to be limited to stress surface smaller for single ejector piston component, produces
Raw thrust is also limited, passes through the stacking of multiple piston components, wherein first stage piston component, second piston component, three-level piston
Being extended on component and level Four piston component has the second air flue, air flue air inlet, and gas is packed into piston cavity and acts on respectively
The upper surface of a piston increases the forced area of bottom ejector piston component by using the upper surface of multiple pistons, can
Generate more preferably thrust effect.
In preferred embodiment, in order to guarantee the airtightness of floating cylinder entirety, the contact position and plug of adjacent pistons component
The contact position of set and piston is provided with sealing ring.
In preferred embodiment, the piston is T-type piston, and the T-type piston includes laterally top and vertical axle portion, described
Second air flue is arranged in the vertical axle portion of the T-type piston, is provided with to come convenient for gas storage on the laterally top of the T-type piston
The groove 450 for driving the inner cylinder body to move up.By the way that the groove is arranged, in the second air flue air inlet, facilitate gas to piston cross
It is spread to the two sides at top, Fast Filling top land drives the floating upward quickly of inner cylinder body.
Referring to fig. 4, in preferred embodiment, it is provided with convex block 460 on the medial surface of the mandrel, is arranged on the tool changing pull rod
There are disc spring 470, the disc spring and the bump contact and the recovery for tool changing pull rod after tool changing.Under the tool changing pull rod
End is provided with the pulling claw for fixed cutting tool.
In conclusion a kind of electric chief axis system provided by the utility model, comprising: floating cylinder device and spindle motor
Device, the floating cylinder device include outer cylinder body and stack the inner casing to float up and down formed by several piston components
Body, the utility model in the lower part of the inner cylinder body as being connected with for fixing the mandrel by nut described in drawing
Pulling plate is provided in the shell and is connected to the groove portion and is used to control the first air flue that the inner cylinder body moves down, in institute
It states being provided centrally with for rear cover and contacts the second air flue forged a knife with the tool changing pull rod for driving the piston to move down,
Be provided with the third air flue separated for controlling the piston with the tool changing pull rod in the plug sleeve, when tool changing by air flue into
Gas control inner cylinder body, which floats, drives pulling plate fixed rotor axle core component to undertake split bearing stress, to bearing when reducing tool changing
Impact improves bearing service life.
It should be understood that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, it can be modified or changed according to the above description, and all these modifications and variations all should belong to the appended power of the utility model
The protection scope that benefit requires.
Claims (10)
1. a kind of electric chief axis system characterized by comprising floating cylinder device and spindle motor device, the floating gas
Cylinder assembly include outer cylinder body and be arranged in inside the outer cylinder body by several piston components stack form floating up and down
Inner cylinder body, the spindle motor device includes stator casing component and the rotor that the stator casing component internal is arranged in
Axle core component, the top of the rotor axle core component are provided with nut, and the lower part of the inner cylinder body is connected with for passing through drawing
The pulling plate of the fixed rotor axle core component of the nut；Ear, the outer cylinder body are provided on the lateral surface of the inner cylinder body
Medial surface on be provided with groove portion, the ear is fitted in the groove portion and can float up and down along the groove portion；The outer shell
Body includes shell, front cover and rear cover, and the piston component includes piston and plug sleeve, the rotor axle core component include mandrel with
And the tool changing pull rod inside the mandrel is set, it is provided in the shell and is connected to the groove portion and for driving the ear
Subordinate's in-migration controls the first air flue that the inner cylinder body moves down, and the rear cover is provided centrally with for driving the piston to move down
The second air flue for carrying out tool changing is contacted with the tool changing pull rod；It is provided in the plug sleeve and is changed for controlling the piston with described
The third air flue of knife pull rod separation.
2. electric chief axis system according to claim 1, which is characterized in that the lateral surface of the mandrel is successively set from the bottom to top
It is equipped with the first ladder, the second ladder, third ladder and fourth order ladder that the diameter of axle gradually successively decreases, second ladder, third ladder
It is arranged with lower cover, lower bearing and rotor respectively on fourth order ladder, the stator casing component includes body fuselage, described
The inside of body fuselage is from top to bottom disposed with upper bearing (metal) and stator, and the mandrel is pacified by the lower part of the body fuselage
Mounted in the inside of the body fuselage.
3. electric chief axis system according to claim 2, which is characterized in that first ladder is outward extended with dust-proof end
Lid.
4. electric chief axis system according to claim 2, which is characterized in that be arranged at intervals with first inside the body fuselage
Cover board and the second cover board are provided with top chock, the top chock and the machine between first cover board and the second cover board
Ball sleeve is provided between body case, the upper bearing (metal) is fixed on the interior of shell by the top chock.
5. electric chief axis system according to claim 4, which is characterized in that between second cover board and the top chock
It is provided with preloading spring.
6. electric chief axis system according to claim 2, which is characterized in that the both ends of the lower bearing pass through respectively washer and
Lower bearing locking nut is fixed, and the both ends of the rotor pass through lower bearing locking nut respectively and rotor fixture nut carries out
It is fixed, connecting bolt is provided between the rotor and lower bearing locking nut.
7. electric chief axis system according to claim 1, which is characterized in that the piston component is provided with 5 groups, from top to bottom
Successively include first stage piston component, second piston component, three-level piston component, level Four piston component and ejector piston component,
The first stage piston component, second piston component, three-level piston component and level Four piston component the center of piston extend and set
It is equipped with the second air flue.
8. electric chief axis system according to claim 7, which is characterized in that the contact position and plug sleeve of adjacent pistons component
Sealing ring is provided with the contact position of piston.
9. electric chief axis system according to claim 7, which is characterized in that the piston is T-type piston, the T-type piston
It is arranged in the vertical axle portion of the T-type piston including laterally top and vertical axle portion, second air flue, the T-type is living
The groove for driving the inner cylinder body to float convenient for gas storage is provided on the laterally top of plug.
10. electric chief axis system according to claim 1, which is characterized in that it is provided with convex block on the medial surface of the mandrel,
Disc spring, the disc spring and the bump contact and the recovery for tool changing pull rod after tool changing are arranged on the tool changing pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821420299.6U CN209021249U (en) | 2018-08-31 | 2018-08-31 | A kind of electric chief axis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821420299.6U CN209021249U (en) | 2018-08-31 | 2018-08-31 | A kind of electric chief axis system |
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| Publication Number | Publication Date |
|---|---|
| CN209021249U true CN209021249U (en) | 2019-06-25 |
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ID=66876780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821420299.6U Active CN209021249U (en) | 2018-08-31 | 2018-08-31 | A kind of electric chief axis system |
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| Country | Link |
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| CN (1) | CN209021249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941625A (en) * | 2018-08-31 | 2018-12-07 | 佛山善能机电科技有限公司 | A kind of electric chief axis system |
-
2018
- 2018-08-31 CN CN201821420299.6U patent/CN209021249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941625A (en) * | 2018-08-31 | 2018-12-07 | 佛山善能机电科技有限公司 | A kind of electric chief axis system |
| CN108941625B (en) * | 2018-08-31 | 2024-03-26 | 佛山善能机电科技有限公司 | Motorized spindle system |
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