CN109702228A - Axle core component and electro spindle - Google Patents
Axle core component and electro spindle Download PDFInfo
- Publication number
- CN109702228A CN109702228A CN201711017551.9A CN201711017551A CN109702228A CN 109702228 A CN109702228 A CN 109702228A CN 201711017551 A CN201711017551 A CN 201711017551A CN 109702228 A CN109702228 A CN 109702228A
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- hole
- collet
- core component
- pull rod
- axle core
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- 239000008358 core component Substances 0.000 title claims abstract description 33
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000000306 component Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 210000003734 kidney Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 241000209094 Oryza Species 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Auxiliary Devices For Machine Tools (AREA)
- Gripping On Spindles (AREA)
Abstract
The present invention discloses a kind of axle core component and electro spindle, wherein the axle core component includes central spindle, pull rod, collet and location structure；Central spindle be equipped with along axially through axis hole, the free ending tool of central spindle has the gripping section for clamping cutter, and the through hole radially extending and run through central spindle along the cross section of central spindle is offered on gripping section；Drag link sleeve is set in axis hole；In collet in the axis hole of gripping section, collet one end connect with pull rod, and the other end is equipped with and axis hole is coaxial that fixed folder hole is protruded into for cutter, set on the outer peripheral surface of collet there are two symmetrically and the limiting slot that is connected to folder hole；Location structure includes positioning pin and fixing piece, and positioning pin is penetrated from one end of through hole, and successively wears limiting slot and be pierced by with after folder hole from the other end of through hole, and fixing piece penetrates central spindle with the positioning pin that is locked.Electro spindle can be improved to the axial positioning function of cutter, to improve installation accuracy and processing efficiency in technical solution of the present invention.
Description
Technical field
The present invention relates to numerical control machine tool technique field, in particular to a kind of axle core component and electro spindle.
Background technique
With electric drive technology rapid development and be gradually improved, more and more High Speed NC Machine Tools use will lead
The drive mechanism form that axis motor and machine tool chief axis are combined into one, i.e. electro spindle.However, in the actual use process of electro spindle
In, since high-speed electric main shaft is not normally provided with the axial positioning function of cutter, therefore result in each tool changing in process
The axial position of cutter can all have relatively large deviation, so that tool changing requires to re-start work pieces process dead-center position pair every time
Knife in this way, just bringing cumbersome repetition to act knife to operator, while also seriously reducing processing efficiency.
Summary of the invention
The main object of the present invention is to provide a kind of axle core component, it is intended to improve electro spindle to the axially position function of cutter
Energy.
To achieve the above object, axle core component proposed by the present invention includes central spindle, pull rod, collet and location structure；Institute
State central spindle be equipped with along axially through axis hole, the free ending tool of the central spindle has the gripping section for clamping cutter, the clamping
The through hole radially extended and run through the central spindle along the cross section of the central spindle is offered in section；Drag link sleeve is set to the axis
In hole；In the collet in the axis hole of the gripping section, described collet one end is connect with the pull rod, and the other end is set
Have and the axis hole is coaxial protrudes into fixed folder hole for cutter, sets that there are two symmetrical and on the outer peripheral surface of the collet
The limiting slot being connected to the folder hole；The location structure includes positioning pin and fixing piece, and the positioning pin is from the through hole
One end penetrate, and successively wear the limiting slot and be pierced by with after folder hole from the other end of the through hole, the fixing piece is worn
Enter the central spindle with the positioning pin that is locked.
Preferably, it is arranged at the gripping section of the axis hole in the taper of outside flaring.
Preferably, the limiting slot is kidney slot.
Preferably, the folder hole is in the both ends setting for penetrating through the collet, is equipped with screw thread in the folder hole, the pull rod with
The folder hole is spirally connected.
Preferably, the outer peripheral surface of the collet is equipped with annular recess, and the annular recess is built-in with sealing ring, described close
Seal is abutted with the inner wall surface elastic of the axis hole.
Preferably, the gripping section is equipped with the first screw thread that the through hole is through to from the outer surface of the central spindle
Hole, the fixing piece are machine-processed rice screw, and the fixing piece is screwed into the threaded hole so that the positioning pin to be locked.
Preferably,
The axle core component further includes elastic component and return nut, and the outer peripheral surface of the pull rod is in the position far from the collet
The first limiting section is installed, the pull rod is connect adjacent to one end of the collet with the return nut；
The wall surface of the hole of the axis hole is equipped with the second limiting section, and second limit position in the position far from the collet
Between first limiting section and the return nut；
The elastic component is sheathed on the pull rod, and both ends are elastic with first limiting section and the second limiting section respectively
It abuts.
Preferably, the elastic component is butterfly spring, and multiple butterfly springs are sheathed on the pull rod along axial overlapping.
Preferably, the outer peripheral surface of the pull rod is equipped with third limiting section, the return spiral shell in the position for closing on the collet
Mother is equipped with the second threaded hole, the pull rod and second screw hole, and the return nut and the third limiting section
Fitting.
The present invention also proposes a kind of electro spindle, including axle core component, the axle core component include central spindle, pull rod, collet and
Location structure；The central spindle be equipped with along axially through axis hole, the free ending tool of the central spindle has the clamping for clamping cutter
Section, the through hole radially extending and run through the central spindle along the cross section of the central spindle is offered on the gripping section；Pull rod
It is sheathed in the axis hole；In the collet in the axis hole of the gripping section, described collet one end and the pull rod
Connection, the other end are equipped with and the axis hole is coaxial that fixed folder hole is protruded into for cutter, and the outer peripheral surface of the collet is equipped with
Two limiting slots that are symmetrical and being connected to the folder hole；The location structure includes positioning pin and fixing piece, the positioning
Pin is penetrated from one end of the through hole, and is successively worn the limiting slot and worn with after folder hole from the other end of the through hole
Out, the fixing piece penetrates the central spindle with the positioning pin that is locked.
In technical solution of the present invention, this electro spindle in actual use, every time replace cutter when, first will folder
Head is opened, and collet turns to limiting slot position opposite with through hole, then penetrates positioning pin from one end of through hole, and successively
It wearing limiting slot to be pierced by with after folder hole from the other end of through hole, cutter is then packed into folder hole, tail portion holds out against positioning pin, then
Collet is collapsed with clamp-on tool, and penetrates central spindle using fixing piece with the positioning pin that is locked, at this point, since cutter is by collet
It clamps, and collet realizes that the limit with central spindle is fixedly connected by the positioning pin of limiting slot and locking, so that knife can be realized
The axial positioning function of tool, in this way, be not provided with for the electro spindle of cutter axial positioning function compared to common at present,
It can be achieved with higher repeatable accuracy in exchanging knives process, without again to knife, and then improve processing efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic diagram of the section structure of one embodiment of axle core component of the present invention；
Fig. 2 is the enlarged diagram in Fig. 1 at A；
Fig. 3 is the enlarged diagram in Fig. 1 at B.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of axle core component.
Referring to figs. 1 to Fig. 3, in an embodiment of the present invention, which is mainly used for high-speed electric main shaft (not shown),
Certainly, the other types of electro spindle for needing to clamp cutter is also applicable.The axle core component include central spindle 1, pull rod 2, collet 3 with
And location structure 4；Central spindle 1 be equipped with along axially through axis hole 11, the free ending tool of central spindle 1 has the gripping section for clamping cutter
12, the through hole 121 radially extending and run through central spindle 1 along the cross section of central spindle 1 is offered on gripping section 12；Pull rod 2 is arranged
In in axis hole 11；In collet 3 in the axis hole 11 of gripping section 12,3 one end of collet is connect with pull rod 2, and the other end is equipped with and axis
Hole 11 it is coaxial protrude into fixed folder hole 31 for cutter, set on the outer peripheral surface of collet 3 there are two it is symmetrical and with folder hole 31
The limiting slot 32 of connection；Location structure 4 includes positioning pin 41 and fixing piece 42, and positioning pin 41 is penetrated from one end of through hole 121,
And successively wear limiting slot 32 and be pierced by with after folder hole 31 from the other end of through hole 121, it is solid to lock that fixing piece 42 penetrates central spindle 1
Determine positioning pin 41.
It should be noted that, since electro spindle has, compact-sized, inertia is small, noise is low, response is fast, revolving speed is high, function herein
Rate is big, the advantages that can simplifying Machine Tool design and being easily achieved main shaft orientation, thus is that one of High-sp eed spindle unit is common
Preferred structure.In general, electro spindle is by frameless motor (not shown), main shaft (not shown), bearing (not shown), main axle unit shell
The components such as body (not shown), drive module (not shown) and cooling device (not shown) composition.In the practical structures of electro spindle,
The rotor of motor is made of one with main shaft, and main shaft is then supported by front and back bearings；The stator of motor is installed on master by coolant jacket
In the shell of axle unit；The speed change of main shaft is controlled by main shaft drives module, and the raising of temperature is then filled by cooling in main axle unit
Set limitation；In addition, be generally equipped in the rear end of main shaft test the speed, angle measurement displacement sensor (not shown), and front end then usually have
There is hole for installing cutter.In the present embodiment, this axle core component is the important component set on spindle shaft center portion, if with direction
The direction for being processed object is front, then the front end of central spindle 1 is gripping section 12, and the axis hole 11 at the gripping section 12 can be used to
Cutter is installed.
In the present embodiment, this electro spindle in actual use, every time replace cutter when, collet 3 is opened first,
And collet 3 turns to limiting slot 32 and through hole 121 with respect to position, then penetrates positioning pin 41 from one end of through hole 121, and
It successively wears limiting slot 32 to be pierced by with after folder hole 31 from the other end of through hole 121, cutter is then packed into folder hole 31, tail portion
Positioning pin 41 is held out against, then collet 3 is collapsed with clamp-on tool, and penetrate central spindle 1 using fixing piece 42 with the positioning pin that is locked
41, at this point, since cutter is clamped by collet 3, and the positioning pin 41 that collet 3 passes through limiting slot 32 and locking is realized and central spindle
1 limit is fixedly connected, so that the axial positioning function of cutter can be realized, in this way, being not provided with knife compared to common at present
For the electro spindle for having axial positioning function, higher repeatable accuracy can be achieved in exchanging knives process, without again to knife,
And then improve processing efficiency.Certainly, also there is least a portion of electro spindle that can realize cutter by the cooperation of external knife handle at present
Axially position, but this mode cause it is every cutter required corresponding knife handle realize clamping, not only structure is complicated, use cost
Height, and clamping precision is low.But it in the technical scheme of this embodiment, should be with the axle core component of cutter axial positioning structure 4
Do not need to be arranged external knife handle cooperation then, can directly clamp cutter, thus can realize high-precision of the electro spindle when installing cutter with
And high efficiency, so that product cost be effectively reduced.
It referring to Figure 1 and Figure 3, in the present embodiment, further, is in the taper of outside flaring at the gripping section 12 of axis hole 11
Setting.It is appreciated that due to being equipped with the collet 3 connect with pull rod 2 at the gripping section 12 of axis hole 11, therefore when 3 tension member 2 of collet
When traction, the tapered setting in 11 front end of axis hole can be such that obstruction suffered by the release or gathering movement of collet 3 reduces, and also advantageous
In the installation of cutter.
As shown in Fig. 2, in the present embodiment, further, folder hole 31 is preferably in the both ends setting of perforation collet 3, folder hole
It is equipped with screw thread (not indicating) in 31, pull rod 2 is spirally connected with folder hole 31.Right the design is without being limited thereto, in other embodiments, collet 3
It can also be connected by other means between pull rod 2, such as, but not limited to clamping or the top projection screw thread in collet 3
Column, and be spirally connected with the threaded interior hole for being set to 2 lower end of pull rod.But in the present embodiment, pass through the internal screw thread of folder hole 31 and 2 spiral shell of pull rod
Connection between the two can be made not only securely but also conveniently by connecing.
Further, the outer peripheral surface of collet 3 is equipped with annular recess 33, and annular recess 33 is built-in with sealing ring 34, seals
Circle 34 is abutted with the inner wall surface elastic of axis hole 11.Here, sealing ring 34 can be other elastic materials such as rubber ring or silica gel ring
Sealing ring 34 made of expecting.It is appreciated that the setting of sealing ring 34 may make collet 3 outer surface and axis hole 11 inner wall it
Between for be tightly connected be conducive to improve axle core component entirety sealing performance.
It should be noted that, in the present embodiment, limiting slot 32 is preferably kidney slot, since the groove width of kidney slot is on edge herein
From the outer surface of collet 3 to being tapered on the direction of folder hole 31, therefore be conducive to smoothly wearing for positioning pin 41.In addition, two limits
Position slot 32 is symmetrical on the left and right directions along Fig. 1, i.e. the line of the hole heart at the slot bottom center and folder hole 31 of two limiting slots 32
It should be overlapped with the axis of positioning pin 41.
Referring to Figure 1 and Figure 3, in the present embodiment, specifically, gripping section 12 is equipped with and is through to from the outer surface of central spindle 1
First threaded hole 122 of through hole 121, first threaded hole 122 are preferably arranged in sloping inwardly with the cross section of central spindle 1.Its
In, fixing piece 42 is preferably the machine-processed rice screw that will not protrude from the aperture of the first threaded hole 122, certainly, in other embodiments
In, fixing piece 42 is also possible to the normal screws that length is slightly larger than the first threaded hole 122, but selects machine-processed rice spiral shell in the present embodiment
Silk is more advantageous to beautiful and assembly.After positioning pin 41 is inserted into through hole 121 to predetermined position, so that it may be screwed into fixing piece 42
Threaded hole is positioning pin 41 to be locked, to prevent positioning pin 41 from getting loose.Here, positioning pin 41 is inserted into through hole 121
Afterwards, it should ensure that its both ends does not all protrude from the outer peripheral surface of central spindle 1, in order to avoid influence beautiful and the operating of central spindle 1 is impacted.
Further, referring to figs. 1 to Fig. 3, in the present embodiment, axle core component further includes elastic component 5 and return nut 6,
The outer peripheral surface of pull rod 2 is equipped with the first limiting section 21, the one end and return nut of pull rod 2 adjacent to collet 3 in the position far from collet 3
6 connections；The wall surface of the hole of axis hole 11 is equipped with the second limiting section 111 in the position far from collet 3, and the second limiting section 111 is located at the
Between one limiting section 21 and return nut 6, elastic component 5 is sheathed on pull rod 2, and both ends respectively with the first limiting section 21 and second
111 elasticity of limiting section abuts.And as shown in Fig. 2, elastic component 5 is preferably butterfly spring, multiple butterfly springs are along axial overlapping
It is sheathed on pull rod 2.Further, the outer peripheral surface of pull rod 2 is equipped with third limiting section 22, return spiral shell in the position for closing on collet 3
Mother 6 is equipped with the second threaded hole (not indicating), pull rod 2 and the second screw hole, and return nut 6 and third limiting section 22 paste
It closes, in this way, can play the role of preload to butterfly spring, butterfly spring will not be fully relaxed in exchanging knives process, therefore butterfly
It would not occur relatively slipping in the circumferential direction between spring, therefore the stability of equilibrium of axle core component is high, in other words, passes through butterfly spring
Pre-pressing structure, axle core component can be made more preferable in use process stability of equilibrium.Here, the first limiting section 21 is on pull rod 2
The first step to be formed is reduced axially towards the direction of collet 3, the second limiting section 111 is axis hole 11 vertically towards folder
First 3 direction reduces the second step to be formed, and third limiting section 22 is at the lower end of pull rod 2 axially towards the side of collet 3
To the third step formed is reduced, certainly, in other embodiments, elastic component 5 is also possible to pressure spring etc., the second limiting section 111
Etc. the flange etc. being also possible to from 11 inner wall projection of axis hole.In addition, in the present embodiment, the outer peripheral surface of return nut 6 is also set
There is annular groove, sealing ring 34 also is provided in annular groove.
In the present embodiment, the specific assembling process of this axle core component is as follows: firstly, multiple butterfly springs are covered in groups
It is through on pull rod 2；Then, the pull rod 2 for having installed butterfly spring is pierced into the axis hole 11 of central spindle 1, until butterfly spring with
Second limiting section 111 compresses；Then, the return nut 6 equipped with sealing ring 34 is packed at the gripping section 12 of axis hole 11, and used
Tooling locks return nut 6 and pull rod 2, to ensure the step of the top surface of return nut 6 and the second limiting section 111 of pull rod 2
Face paste is tight, to realize that the preload to butterfly spring acts on；Then, then the collet 3 with sealing ring 34 put into axis hole 11
At gripping section 12, and collet 3 is locked on pull rod 2 with allen wrench；Then, made with the spanner position of spanner insertion pull rod 2
Rotation, until positioning pin 41 is inserted into through hole 121 until passing through perforation with respect to behind position by limiting slot 32 and through hole 121
The other end in hole 121；Then, machine-processed rice screw is screwed into from the first threaded hole 122, until positioning pin 41 is locked.Often
When secondary replacement cutter, so that it may open collet 3, cutter is fitted into folder hole 31, tail portion holds out against positioning pin 41, then collet 3
It collapses, clamp-on tool, to realize the axial positioning function of cutter.
The present invention also proposes a kind of electro spindle, which includes axle core component, the specific structure reference of the axle core component
Above-described embodiment at least has above-mentioned reality since this electro spindle uses whole technical solutions of above-mentioned all embodiments
All beneficial effects brought by the technical solution of example are applied, this is no longer going to repeat them.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of axle core component is used for electro spindle characterized by comprising
Central spindle, the central spindle be equipped with along axially through axis hole, the free ending tool of the central spindle has the clamping for clamping cutter
Section, the through hole radially extending and run through the central spindle along the cross section of the central spindle is offered on the gripping section；
Pull rod is sheathed in the axis hole；
Collet, the collet is interior in the axis hole of the gripping section, and described collet one end is connect with the pull rod, another
End is equipped with and the axis hole is coaxial that fixed folder hole is protruded into for cutter, sets that there are two symmetrically on the outer peripheral surface of the collet
And the limiting slot being connected to the folder hole；And
Location structure, the location structure include positioning pin and fixing piece, and the positioning pin is penetrated from one end of the through hole,
And successively wear the limiting slot and be pierced by with after folder hole from the other end of the through hole, the fixing piece penetrate the central spindle with
Be locked the positioning pin.
2. axle core component as described in claim 1, which is characterized in that be in the taper of outside flaring at the gripping section of the axis hole
Setting.
3. axle core component as claimed in claim 2, which is characterized in that the limiting slot is kidney slot.
4. axle core component as claimed in claim 2, which is characterized in that the folder hole is arranged in the both ends for penetrating through the collet,
Screw thread is equipped in the folder hole, the pull rod is spirally connected with the folder hole.
5. axle core component as claimed in claim 2, which is characterized in that the outer peripheral surface of the collet is equipped with annular recess, institute
It states annular recess and is built-in with sealing ring, the sealing ring is abutted with the inner wall surface elastic of the axis hole.
6. axle core component as claimed in claim 2, which is characterized in that the gripping section is equipped with from the outer surface of the central spindle
Be through to the first threaded hole of the through hole, the fixing piece is machine-processed rice screw, the fixing piece be screwed into the threaded hole with
The positioning pin is locked.
7. such as axle core component as claimed in any one of claims 1 to 6, which is characterized in that the axle core component further includes elastic component
It is equipped with the first limiting section in the position far from the collet with the outer peripheral surface of return nut, the pull rod, the pull rod is adjacent to institute
The one end for stating collet is connect with the return nut；
The wall surface of the hole of the axis hole is equipped with the second limiting section in the position far from the collet, and second limiting section is located at institute
It states between the first limiting section and the return nut；
The elastic component is sheathed on the pull rod, and both ends are supported with first limiting section and the second limiting section elasticity respectively
It connects.
8. axle core component as claimed in claim 7, which is characterized in that the elastic component is butterfly spring, multiple butterfly springs
It is sheathed on the pull rod along axial overlapping.
9. axle core component as claimed in claim 7, which is characterized in that the outer peripheral surface of the pull rod is in the position for closing on the collet
Third limiting section is installed, the return nut is equipped with the second threaded hole, the pull rod and second screw hole, and institute
Return nut is stated to be bonded with the third limiting section.
10. a kind of electro spindle, which is characterized in that including axle core component as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017551.9A CN109702228B (en) | 2017-10-25 | 2017-10-25 | Shaft core assembly and electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017551.9A CN109702228B (en) | 2017-10-25 | 2017-10-25 | Shaft core assembly and electric spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109702228A true CN109702228A (en) | 2019-05-03 |
| CN109702228B CN109702228B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711017551.9A Active CN109702228B (en) | 2017-10-25 | 2017-10-25 | Shaft core assembly and electric spindle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715899A (en) * | 2020-06-24 | 2020-09-29 | 珠海格力电器股份有限公司 | Electric spindle, abnormality detection method thereof and machining center |
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| CN206065954U (en) * | 2016-08-31 | 2017-04-05 | 成都正恒动力股份有限公司 | A kind of adjustable auxiliary support device for positioning mechanical converted productss |
| CN107234252A (en) * | 2017-07-24 | 2017-10-10 | 东莞市科隆实业有限公司 | Fan blade balancing machine main shaft |
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| CN111715899A (en) * | 2020-06-24 | 2020-09-29 | 珠海格力电器股份有限公司 | Electric spindle, abnormality detection method thereof and machining center |
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