CN109500735A - A kind of double abrasive wheel electro spindle - Google Patents
A kind of double abrasive wheel electro spindle Download PDFInfo
- Publication number
- CN109500735A CN109500735A CN201811417668.0A CN201811417668A CN109500735A CN 109500735 A CN109500735 A CN 109500735A CN 201811417668 A CN201811417668 A CN 201811417668A CN 109500735 A CN109500735 A CN 109500735A
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- China
- Prior art keywords
- grinding wheel
- bearing
- main shaft
- electro spindle
- gas channels
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a kind of double abrasive wheel electro spindles, including body, main shaft, stator, rotor, rear bearing, rear bearing block, fore bearing, drive end bearing bracket, rear end cap and the first grinding wheel and the second grinding wheel, main shaft is mounted on internal body axial location, stator is fixed on body inner wall, rotor is mounted on main shaft, rotor is matched with stator, main shaft is supported by the fore bearing and rear bearing for being mounted on its both ends, rear bearing is mounted in rear bearing block, rear bearing block is mounted on the rear end of body, rear end cap covers on rear bearing block, drive end bearing bracket covers the front end in body and compresses with fore bearing, one end that main shaft stretches out drive end bearing bracket is respectively provided with the first grinding wheel installation position and the second grinding wheel installation position of installation the first grinding wheel and the second grinding wheel.The double abrasive wheel electro spindle realizes that the first grinding wheel and the second grinding wheel are processed simultaneously, improves processing efficiency, reduces processing cost.
Description
Technical field
The present invention relates to electro spindle technical field more particularly to a kind of double abrasive wheel electro spindles.
Background technique
In existing grinding, the shaft end of common electro spindle can only all install a grinding wheel and carry out grinding, cannot
Two grinding wheels are installed to be processed, processing efficiency is low；Secondly the inner circle in processing sleeve part and outer bowlder, typically
Realize Cylindrical Grinding Processes by a cylindrical grinder, an internal grinder realizes that internal grinding is processed, such processing
Due to multiple clamping, replacement lathe, not only processing efficiency is low, machining accuracy is low, but also increases cost.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of double abrasive wheel electro spindles, are added with improving
Work efficiency rate and reduction processing cost.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of double abrasive wheel electro spindle, including body, main shaft, stator, rotor, rear bearing, rear bearing block, fore bearing, front end
Lid and rear end cap, the main shaft are mounted on the internal body axial location, and the stator is fixed on the body inner wall, described
Rotor is mounted on the main shaft, and the rotor is matched with the stator, and the main shaft is by being mounted on described in its both ends
Fore bearing and rear bearing bearing, the rear bearing are mounted in the rear bearing block, and the rear bearing block is mounted on described
The rear end of body, the rear end cap cover on the rear bearing block, the drive end bearing bracket cover the body front end and with it is described
Fore bearing compresses, and further includes the first grinding wheel and the second grinding wheel, and one end that the main shaft stretches out the drive end bearing bracket is respectively provided with
The the first grinding wheel installation position and the second grinding wheel installation position of first grinding wheel and second grinding wheel are installed.
Further, the cross section that the main shaft stretches out one end of the drive end bearing bracket is in convex, and the convex includes
Main paragraph and convex section, the convex section is vertical with the main paragraph, and first grinding wheel installation position is set to the main paragraph, institute
The second grinding wheel installation position is stated set on the convex section.
Further, the double abrasive wheel electro spindle further includes the first grinding wheel locking nut, the first grinding wheel locking nut
It covers on first grinding wheel.
Further, the double abrasive wheel electro spindle further includes the second grinding wheel gland, and the second grinding wheel gland is covered described
On second grinding wheel.
Further, the double abrasive wheel electro spindle further includes preloading spring and spring shim, and the rear bearing block, which is equipped with, to be used
In the container for accommodating the preloading spring, one end of the spring shim is supported with the rear bearing, the spring shim
The other end is compressed with the preloading spring.
Further, the double abrasive wheel electro spindle further includes gas channels, the gas channels include be opened in it is described after
First gas channels of cover internal, are opened in the body the second gas channels being opened in inside the rear bearing block
The third gas channels in portion and the 4th gas channels being opened in inside the drive end bearing bracket, first gas channels, the second gas
Paths, third gas channels and the 4th gas channels are successively interconnected, and the drive end bearing bracket is equipped with logical with the 4th gas circuit
The annular groove of road connection, is formed with labyrinth clearance, the annular groove and institute between the inner wall of the drive end bearing bracket and the inner wall of the main shaft
Labyrinth clearance connection is stated, the end of the annular groove is equipped with plug.
Further, the double abrasive wheel electro spindle further includes ring block, and the ring block is covered in the front end of the main shaft, and
The outer wall of the ring block and the first inner face of the drive end bearing bracket compress, and the of the end of the ring block and the drive end bearing bracket
Two inner faces compress；The ring block offers multiple annular through-holes, and the annular groove is connected to the annular through-hole.
Further, the double abrasive wheel electro spindle further includes seal assembly, and the seal assembly includes being located at described first
First sealing ring of both gas channels and the second gas channels link position is located at second gas channels and third gas circuit
Second sealing ring of both channels link position, the third for being located at both third gas channels and the 4th gas channels link position
Sealing ring.
Further, the double abrasive wheel electro spindle further includes stator temperature sensor, the stator temperature sensor installation
Inside the main shaft.
Further, the double abrasive wheel electro spindle further includes rear bearing locking nut and fore bearing locking nut, after described
Bearing lock nut covers the rear end in the main shaft and compresses with the rear bearing, and the fore bearing locking screw mother set is in the master
The front end of axis is simultaneously compressed with the fore bearing.
Compared with prior art, the beneficial effects of the present invention are:
By being equipped with the first grinding wheel installation position and the second grinding wheel installation position in one end of main shaft, the first sand of installation is made it possible to
Wheel and the second grinding wheel improve processing efficiency, reduce processing to realize that the first grinding wheel and the second grinding wheel are processed simultaneously
Cost.In addition, being directed to the processing of sleeve part, the first grinding wheel installation position and the second grinding wheel installation position of one end of the main shaft can
To install inner circle mill and outer circle grinding abrasive disk simultaneously, can be added with clamped one time to realize and carry out cylindricalo grinding to same workpiece
Work and internal grinding processing, improve processing efficiency, reduce processing cost, improve part processing precision, especially improve
The precision of the concentricity each other of the inner circle and outer circle of sleeve part.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of double abrasive wheel electro spindle provided by the invention.
In figure: 1, body；2, main shaft；3, stator；4, rotor；5, fore bearing；6, drive end bearing bracket；7, rear bearing；8, rear bearing
Seat；9, rear end cap；10, the first grinding wheel；11, the second grinding wheel；12, the first grinding wheel locking nut；13, the second grinding wheel gland；14, pre-
Tight spring；15, spring shim；16, the first gas channels；17, the second gas channels；18, third gas channels；19, the 4th gas
Paths；20, annular groove；21, labyrinth clearance；22, plug；23, the first sealing ring；24, the second sealing ring；25, third sealing ring；
26, rear bearing locking nut；27, fore bearing locking nut；28, gland screw；29, ring block；30, annular through-hole；31, it balances
Block；32, steel ball；33, holding screw.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
As shown in Figure 1, be a kind of double abrasive wheel electro spindle provided by the invention, including body 1, main shaft 2, stator 3, rotor 4,
Rear bearing 7, rear bearing block 8, fore bearing 5, drive end bearing bracket 6, rear end cap 9, the first grinding wheel 10 and the second grinding wheel 11, main shaft 2 are mounted on
1 inside axial location of body, stator 3 are fixed on 1 inner wall of body, and rotor 4 is mounted on main shaft 2, and rotor 4 is matched with stator 3,
Main shaft 2 is supported by the fore bearing 5 and rear bearing 7 for being mounted on its both ends, and rear bearing 7 is mounted in rear bearing block 8, rear bearing block
8 are mounted on the rear end of body 1,9 sets of rear end cap on rear bearing block 8,6 sets of drive end bearing bracket body 1 front end and supported with fore bearing 5
Pressure, one end that main shaft 2 stretches out drive end bearing bracket 6 are respectively provided with the first grinding wheel installation of the first grinding wheel 10 of installation and the second grinding wheel 11
Position and the second grinding wheel installation position.
On above structure basis, when work, first leads to satisfactory three-phase alternating current variable-frequency power sources in the termination of motor stator 3 and drive
The permanent torque high speed rotation of dynamic main shaft 2, makes the first grinding wheel 10 for being mounted on 2 shaft end of main shaft and the second grinding wheel 11 carry out high efficiency, height
The grinding of precision, and selection different operating revolving speed can be required according to specific works.The present embodiment passes through in one end of main shaft 2
Equipped with the first grinding wheel installation position and the second grinding wheel installation position, the first grinding wheel 10 of installation and the second grinding wheel 11 are made it possible to, so that main
Axis 2 can drive the first grinding wheel 10 and the second grinding wheel 11 while rotate, to realize that the first grinding wheel 10 and the second grinding wheel 11 can be with
It is processed simultaneously, improves processing efficiency, reduce processing cost.In addition, being directed to the processing of sleeve part, the main shaft 2
One end the first grinding wheel installation position and the second grinding wheel installation position can install simultaneously inner circle mill and outer circle grinding abrasive disk, can be primary
Clamping carries out Cylindrical Grinding Processes and internal grinding processing to same workpiece to realize, improves processing efficiency, reduces
Processing cost improves part processing precision, in particular improves the inner circle of sleeve part and the concentricity each other of outer circle
Precision.
In addition, the 3 mountable water jacket in outside of stator of the present embodiment, be adequately cooled stator 3 can at work, turns
Son 4 is mainly made of permanent magnet, not only small in size, but also it is few to generate heat, and the motor that stator 3 and rotor 4 form both saves space,
Power consumption is reduced, and provides sufficient driving force for main shaft 2.Wherein, interference assembling can be used in rotor 4 and main shaft 2, is passed through pressure
Detachable after power oil, injuring part, does not facilitate later maintenance to maintain.
In the present embodiment, fore bearing 5 and rear bearing 7 are used for supporting spindle 2, and drive end bearing bracket 6 and rear end cap 9 are respectively to front axle
Hold 5 and rear bearing 7 protected；Preferably, the fore bearing 5 of the present embodiment and rear bearing 7 are angular contact ball bearing.Angular contact
Ball bearing structure is simple, can bear radial and axial load, running accuracy with higher and limit speed, moment of friction simultaneously
Smaller, same overall dimensions load bearing capacity more dynamic and static than deep groove ball bearing is big, and temperature rise is low and noise is small.
Preferably, which further includes rear bearing locking nut 26 and fore bearing locking nut 27, rear bearing
26 sets of locking nut main shaft 2 rear end and compressed with rear bearing 7,27 sets of fore bearing locking nut main shaft 2 front end and with
Fore bearing 5 compresses.By setting rear bearing locking nut 26 and fore bearing locking nut 27, bearing and fore bearing 5 can be prevented
Loosen and play positioning action.
Specifically, the cross section that main shaft 2 stretches out one end of drive end bearing bracket 6 is in convex, and convex includes main paragraph and protrusion
Section, convex section is vertical with main paragraph, and 10 installation position of the first grinding wheel is set to main paragraph, and 11 installation position of the second grinding wheel is set to convex section.
It is easy to assembly, compact-sized by installing the first grinding wheel 10 and the second grinding wheel 11 respectively in main paragraph and convex section, while making
One grinding wheel 10 and the second grinding wheel 11 can be with simultaneous processings.
Preferably, which further includes the first grinding wheel locking nut 12, and the first 12 sets of grinding wheel locking nut exists
On first grinding wheel 10.The first grinding wheel 10 is locked by the first grinding wheel locking nut 12, stablizes the processing of the first grinding wheel 10.In addition,
Balanced component is installed on first grinding wheel locking nut 12.Wherein, balanced component includes balance weight 31, steel ball 32 and holding screw
33, opened up on the first grinding wheel locking nut 12 also fluted, balance weight 31 is embedded in groove, and balance weight 31 has axial logical
Hole and radial through-hole, steel ball 32 are located at 31 hiccup of balance weight, and holding screw 33 is shot in balance weight 31 from axially extending bore.Work as tightening
When screw 33 screws, steel ball 32 will be pushed up to radial through-hole, thus by 31 tensioner of balance weight between the two sidewalls of groove,
And then it can prevent balanced component from being thrown away by high-speed rotating grinding wheel；When holding screw 33 is unscrewed, balance weight 31 and groove side
Holding out against degree and will reduce between wall, at this moment balance weight 31 can move in groove, to realize the balance of grinding wheel.
Preferably, which further includes the second grinding wheel gland 13, and the second 13 sets of grinding wheel gland is in the second grinding wheel
On 11.By the way that the second grinding wheel gland 13 is arranged, for protecting the second grinding wheel 11 and main shaft 2.In addition, the second grinding wheel gland
13 are fixed on main shaft 2 by gland screw 28.
Preferably, which further includes preloading spring 14 and spring shim 15, and rear bearing block 8 is equipped with for holding
Receive the container of preloading spring 14, one end and the rear bearing 7 of spring shim 15 support, and the other end of spring shim 15 and pre-tighten bullet
Spring 14 compresses.By applying initial tension of spring to rear bearing 7, guarantee that there is enough rigidity in 2 shaft end of main shaft, simultaneously because rear bearing
7 be elastic preload, can reduce influence of the thermal expansion of main shaft 2 to 2 performance of main shaft；Such bearing configuration mode can guarantee main shaft
2 when running at high speed, and there is enough rigidity in shaft end, while ensure that the temperature rise value of main shaft 2 is small, vibration values are small, the service life is long, thus real
Now permanent torque carries out grinding in different environments, and the needs of high-precision processing are effectively guaranteed.
Preferably, which further includes gas channels, and gas channels include be opened in inside rear end cap 9
One gas channels 16, the second gas channels 17 being opened in inside rear bearing block 8, the third gas circuit being opened in inside body 1 are logical
Road 18 and the 4th gas channels 19 being opened in inside drive end bearing bracket 6, wherein the first gas channels 16, the second gas channels 17,
Three gas channels 18 and the 4th gas channels 19 are successively interconnected, and drive end bearing bracket 6 is equipped with the ring being connected to the 4th gas channels 19
Slot 20 is formed with labyrinth clearance 21 between the inner wall of drive end bearing bracket 6 and the inner wall of main shaft 2, annular groove 20 is connected to labyrinth clearance 21, ring
The end of slot 20 is equipped with plug 22.
In the present embodiment, when main shaft 2 works, first toward being passed through satisfactory pressure air inside main shaft 2, then three are connected
2 rotation work of phase electric drive main shaft；Wherein, pressure air is flowed into from the first gas channels 16 of rear end cap 9, then successively through the
Two gas channels 17, third gas channels 18 and the 4th gas channels 19 are then uniformly flowed into from annular groove 20 by drive end bearing bracket 6 and master
In the labyrinth clearance 21 that axis 2 is formed, since the end of annular groove 20 is equipped with plug 22, it is allowed to form sealing air pressure inside main shaft 2；It should
Gas channels and labyrinth structure can not only take away the heat generated by bearing high speed rotary grinding, at the same prevent sewage,
Grindstone dust, gas etc. enter main shaft 2, extend the service life of main shaft 2.
Preferably, which further includes ring block 29,29 sets of the ring block front ends in main shaft 2, and ring block
First inner face of 29 outer wall and drive end bearing bracket 6 compresses and the end of ring block 29 and the second inner face of drive end bearing bracket 6 compress；
Ring block 29 offers multiple annular through-holes 30, and annular groove 20 is connected to annular through-hole 30.
Above structure basis, by between drive end bearing bracket 6 and main shaft 2 increase ring block 29, allow pressure air from
Sliding slot flows into annular through-hole 30, to form sealing air pressure, further increases the close property effect of main shaft 2, and extend main shaft 2
Service life.
In addition, the annular through-hole 30 of the present embodiment is arranged by basic point circular array of the central axis of ring block 29,
In, the quantity of annular through-hole 30 may be set according to actual conditions, for example can be six, 12 etc., not do here specific
It limits.
Specifically, in order to improve the sealing gland effect of main shaft 2, which further includes seal assembly, seal assembly
Including being located at the first sealing ring 23 of both the first gas channels 16 and the second gas channels 17 link position, being located at the second gas circuit
Second sealing ring 24 of both channel 17 and third gas channels 18 link position is located at third gas channels 18 and the 4th gas circuit
The third sealing ring 25 of both channels 19 link position.Wherein, first sealing ring 23 of the present embodiment, the second sealing ring 24 and
Three sealing rings 25 are preferably O-ring seal.Certainly, the first sealing ring 23, the second sealing ring 24 and third sealing ring 25 can be with
Other types sealing is selected, as long as can guarantee that leakproofness is good.
Preferably, which further includes temperature sensor (not shown go out), and temperature sensor is mounted on main shaft 2
It is internal.Wherein, the control device of the temperature sensor of the present embodiment and cooling system connects, by utilizing independent circulating cooling
System cools down the heat of generation, controls cooling time using temperature sensor, when carrying out to the temperature of main shaft 2 and bearing
When monitor, can timely and effectively feed back, monitor 2 working condition of main shaft.The present embodiment controls cooling time using temperature sensor,
It solves 2 problem of temperature rise of high-speed main spindle, ensure that the running accuracy of high-speed main spindle 2, and ensure that safety in production.In addition, this
The temperature sensor of embodiment can be noncontacting proximity sensor, wherein the alignment probe main shaft 2 of temperature sensor.
The double abrasive wheel electro spindle of the present embodiment integrates built-in motor, angular contact ball bearing, air seal structure, temp measuring system in one
The shaft end of body can install the electromechanical integration component that two grinding wheels are processed simultaneously, have high revolving speed, high rigidity, high-precision
Feature.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of double abrasive wheel electro spindle, including body, main shaft, stator, rotor, rear bearing, rear bearing block, fore bearing, drive end bearing bracket
And rear end cap, the main shaft are mounted on the internal body axial location, and the stator is fixed on the body inner wall, and described turn
Son is mounted on the main shaft, and the rotor is matched with the stator, the main shaft by be mounted on its both ends it is described before
Bearing and rear bearing bearing, the rear bearing are mounted in the rear bearing block, and the rear bearing block is mounted on the machine
The rear end of body, the rear end cap cover on the rear bearing block, the drive end bearing bracket cover the body front end and with it is described before
Bearing compresses, which is characterized in that further includes the first grinding wheel and the second grinding wheel, the main shaft stretches out one end difference of the drive end bearing bracket
Equipped with the first grinding wheel installation position and the second grinding wheel installation position for installing first grinding wheel and second grinding wheel.
2. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the main shaft stretches out one end of the drive end bearing bracket
Cross section is in convex, and the convex includes main paragraph and convex section, and the convex section is vertical with the main paragraph, and described the
One grinding wheel installation position is set to the main paragraph, and second grinding wheel installation position is set to the convex section.
3. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the double abrasive wheel electro spindle further includes the first grinding wheel
Locking nut, the first grinding wheel locking screw mother set is on first grinding wheel.
4. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the double abrasive wheel electro spindle further includes the second grinding wheel
Gland, the second grinding wheel gland cover on second grinding wheel.
5. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the double abrasive wheel electro spindle further includes preloading spring
And spring shim, the rear bearing block are equipped with container for accommodating the preloading spring, one end of the spring shim with
The rear bearing supports, and the other end of the spring shim is compressed with the preloading spring.
6. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the double abrasive wheel electro spindle further includes that gas circuit is logical
Road, the gas channels include being opened in the first gas channels inside the rear end cap, being opened in inside the rear bearing block
The second gas channels, the 4th gas that is opened in the third gas channels of the internal body and is opened in inside the drive end bearing bracket
Paths, first gas channels, the second gas channels, third gas channels and the 4th gas channels are successively interconnected,
The drive end bearing bracket is equipped with the annular groove that be connected to the 4th gas channels, the inner wall of the inner wall of the drive end bearing bracket and the main shaft it
Between be formed with labyrinth clearance, the annular groove is connected to the labyrinth clearance, and the end of the annular groove is equipped with plug.
7. double abrasive wheel electro spindle as claimed in claim 6, which is characterized in that the double abrasive wheel electro spindle further includes ring block,
The ring block is covered in the front end of the main shaft, and the outer wall of the ring block and the first inner face of the drive end bearing bracket compress,
The end of the ring block and the second inner face of the drive end bearing bracket compress；The ring block offers multiple annular through-holes, institute
Annular groove is stated to be connected to the annular through-hole.
8. double abrasive wheel electro spindle as claimed in claim 6, which is characterized in that the double abrasive wheel electro spindle further includes sealing group
Part, the seal assembly include the first sealing for being located at both first gas channels and the second gas channels link position
It encloses, the second sealing ring for being located at both second gas channels and third gas channels link position, to be located at third gas circuit logical
The third sealing ring of both road and the 4th gas channels link position.
9. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the double abrasive wheel electro spindle further includes temperature sensing
Device, the temperature sensor are mounted on inside the main shaft.
10. double abrasive wheel electro spindle as described in claim 1, which is characterized in that the double abrasive wheel electro spindle further includes rear bearing
Locking nut and fore bearing locking nut, the rear bearing locking screw mother set the main shaft rear end and supported with the rear bearing
Pressure, the fore bearing locking screw mother set the main shaft front end and compressed with the fore bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417668.0A CN109500735A (en) | 2018-11-26 | 2018-11-26 | A kind of double abrasive wheel electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417668.0A CN109500735A (en) | 2018-11-26 | 2018-11-26 | A kind of double abrasive wheel electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109500735A true CN109500735A (en) | 2019-03-22 |
Family
ID=65750549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811417668.0A Pending CN109500735A (en) | 2018-11-26 | 2018-11-26 | A kind of double abrasive wheel electro spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109500735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579269A (en) * | 2021-08-06 | 2021-11-02 | 厦门德恩士科技有限公司 | High-speed electric spindle without coupler |
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|---|---|---|---|---|
| CN113579269A (en) * | 2021-08-06 | 2021-11-02 | 厦门德恩士科技有限公司 | High-speed electric spindle without coupler |
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Application publication date: 20190322 |