CN110039444A - A kind of spindle assemblies of biplane grinding machine - Google Patents
A kind of spindle assemblies of biplane grinding machine Download PDFInfo
- Publication number
- CN110039444A CN110039444A CN201910323957.2A CN201910323957A CN110039444A CN 110039444 A CN110039444 A CN 110039444A CN 201910323957 A CN201910323957 A CN 201910323957A CN 110039444 A CN110039444 A CN 110039444A
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- Prior art keywords
- main shaft
- bearing
- thrust bearing
- thrust
- grinding machine
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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
Abstract
The present invention relates to numerical control machine tool technique field, in particular to a kind of spindle assemblies of biplane grinding machine.The spindle assemblies of biplane grinding machine of the invention include: main shaft, and the first end of main shaft is connect with grinding wheel, and the second end of main shaft is equipped with rotary joint；Collar bush, collar bush are sheathed on main shaft；First bearing group, first bearing group are set to the first end of main shaft, and are set between collar bush and main shaft；First bearing group includes the first radial bearing, the first thrust bearing and the second thrust bearing；Wherein, it is equipped with the first inner spacing collar between the first radial bearing and the first thrust bearing, the first outer separator is equipped between the first thrust bearing and collar bush；Elastic element is axially arranged with along main shaft between second thrust bearing and the first thrust bearing.The spindle assemblies of biplane grinding machine of the invention, by applying radial tightening and level pressure preload to bearing, to improve the rigidity and running accuracy of main shaft in the process of running.
Description
Technical field
The present embodiments relate to numerical control machine tool technique field, in particular to a kind of spindle assemblies of biplane grinding machine.
Background technique
Vertical biplane grinding machine is used to be ground two end faces up and down of part, the processing suitable for high-volume part.When zero
When the requirement on machining accuracy of part is higher, the main shaft of vertical biplane grinding machine is needed to have enough rigidity radial and axial to bear
Chip-load and running accuracy with higher, and need main shaft that can continuously and stably run in a long time.Cause
This, needs to carry out reasonable design to the bearing arrangement of main shaft, to improve the rigidity and running accuracy of main shaft in the process of running,
And main shaft is made to be able to bear biggish load.
The bearing arrangement of the main shaft of vertical biplane grinding machine in the prior art mainly use bidirectional angular contact ball bearing and
Biserial cylindrical roller bearing combination pairing use or the sub- bearing combination pairing of the unidirectional angular contact ball bearing of multiple groups and biserial cylinder
The structure used.But it is limited using the axial stiffness of the main shaft of these bearing arrangements, small bite grinding can only be carried out, by
In in heavy type grinding axial force it is larger, therefore the grinding of heavy full depth amount can not be carried out.In addition, in vertical biplane grinding machine
In operational process, since the temperature of main shaft is usually faster than the temperature change of bearing block, meeting shape between main shaft and bearing block
At the temperature difference.After main shaft works long hours, since bearing inner race generates heat, the spacer of main shaft and bearing inner race can be than bearing block and axis
The spacer ring of bearing outer-ring expands fastly, and main shaft elongation and bearing is caused to bear to preload reduction, so that main axis stiffness declines and rotates
Precision is deteriorated.
Summary of the invention
The embodiment of the invention provides a kind of spindle assemblies of biplane grinding machine, by applying radial tightening to bearing and determining
Pressure pre-tightens, to improve the rigidity and running accuracy of main shaft in the process of running.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
The present invention provides a kind of spindle assemblies of biplane grinding machine, comprising:
The first end of main shaft, main shaft is connect with grinding wheel, and the second end of main shaft is equipped with rotary joint；
Collar bush, collar bush are sheathed on main shaft；
First bearing group, first bearing group are set to the first end of main shaft, and are set between collar bush and main shaft；First
Bearing group include the first radial bearing, the first thrust bearing and the second thrust bearing, the first radial bearing, the first thrust bearing and
Second thrust bearing is successively sheathed on main shaft along the first end of main shaft to the second end of main shaft；
Wherein, the first inner spacing collar, the first thrust bearing and main shaft are equipped between the first radial bearing and the first thrust bearing
The first outer separator is equipped between set；Thrust metal, thrust metal are equipped between second thrust bearing and the first thrust bearing
Both ends be respectively provided with the first groove for accommodating the first thrust bearing and the second groove for accommodating the second thrust bearing,
For the slot bottom of second groove along the mounting hole that is axially arranged with of thrust metal, mounting hole is interior to be axially arranged with elastic element along main shaft.
Further, the first end of main shaft is equipped with flange, and flange is connect by ring flange with grinding wheel.
Further, preceding gland is equipped between collar bush and flange, it is recessed that the flange surface opposite with preceding gland is equipped with first
Convex surface is equipped with adjustment gasket and rubber ring between preceding gland and collar bush.
Further, preceding gland and the opposite surface of flange are equipped with the second male and fomale(M&F) corresponding with the first male and fomale(M&F).
Further, preceding gland is extended with extension to main shaft, and extension is in contact with the first radial bearing, extension,
It is equipped with preceding spacer in space between first radial bearing and flange, is equipped in the space between extension, preceding spacer and flange
Sealing ring.
Further, main shaft is also arranged with the first locking nut, and it is close that the first locking nut is set to the second thrust bearing
The side of the second end of main shaft is equipped with the first nut spacer between the first locking nut and the second thrust bearing.
Further, the second end on main shaft close to main shaft is arranged with the second radial bearing, and the second radial bearing is arranged
Between main shaft and collar bush.
Further, the second inner spacing collar, the second outer separator, rear pressing cover, the second nut spacer and are also arranged on main shaft
Two locking nuts, the second inner spacing collar and the second outer separator are set to the second radial bearing close to the side of the first end of main shaft, after
Gland, the second nut spacer and the second locking nut are set in turn in the second radial bearing close to the side of the second end of main shaft.
Based on disclosed above, the beneficial effect of the embodiment of the present invention is:
The spindle assemblies of the biplane grinding machine of the embodiment of the present invention, the first bearing group being arranged on main shaft include first to
Mandrel holds, the first thrust bearing and the second thrust bearing, can pass through the first inner spacing collar, the first outer separator and the first locking nut
Radial tightening is implemented to the first radial bearing, and the elastic element by being axially arranged is to the first thrust bearing and the second thrust
Bearing implements axial pretightening, is able to maintain setting with bearing each in the elongation of main shaft expanded by heating and preloads, to guarantee main shaft
Rigidity and running accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the spindle assemblies of the biplane grinding machine of the embodiment of the present invention；
Fig. 2 is the partial enlarged view in the portion A in Fig. 1；
Fig. 3 is the structural schematic diagram of the thrust metal in the embodiment of the present invention；
Fig. 4 is the sectional view of the thrust metal in one embodiment of the invention；
Fig. 5 is the sectional view of the thrust metal in another embodiment of the present invention；
Fig. 6 is the shaft side figure of the spindle assemblies of the biplane grinding machine of the embodiment of the present invention.
Appended drawing reference: 1, main shaft；2, preceding gland；3, gasket is adjusted；4, preceding spacer；5, the first radial bearing；6, in first
Spacer；7, the first outer separator；8, the first thrust bearing；9, thrust metal；10, the second thrust bearing；11, the first nut every
Set；12, the first locking nut；13, the second inner spacing collar；14, the second outer separator；15, the second radial bearing；16, rear pressing cover；17,
Second nut spacer；18, the second locking nut；19, screw rod attachment base；20, collar bush；21, elastic element；22, rubber ring；
23, sealing ring；24, ring flange；25, grinding wheel；26, rotary joint；27, attachment base is balanced；91, mounting hole.
Specific embodiment
In the following, specific embodiments of the present invention are described in detail in conjunction with attached drawing, but not as the limitation of the invention.
It should be understood that various modifications can be made to disclosed embodiments.Therefore, description above should not regard
To limit, and only as the example of embodiment.Those skilled in the art will expect within the scope and spirit of this
Other modifications.
Those skilled in the art it is recognised that meet the requirement of the rigidity and running accuracy of main shaft, need reasonably be
Main shaft configures bearing, to apply suitable pre-tighten to bearing in spindle mounted.The preload of bearing is the clearance tune by bearing
Whole come what is realized, it is bearing in assembly, applies an axial force to bearing inner race or outer ring, to eliminate bearing clearance, and
Rolling element and inside and outside circle is set to generate predeformation when contacting.Main shaft in the process of running, due to bearing heating generate main shaft elongation etc.
Factor influences, and the preload of bearing can constantly change: if preload becomes larger, will lead to bearing inner race expansion, outer ring is shunk, axis
Frictional force increases between the rolling element and raceway that hold, and unstable wear leads to the reduced service life of bearing, and bearing card occurs when serious
Dead or burn；If preload becomes smaller, can generate main axis stiffness decline and running accuracy reduction etc. influences.
Therefore, it is necessary to the working methods and stress according to grinding machine, select suitable Bearing configuration and main shaft to constitute and lead
Shaft assembly to improve the rigidity and running accuracy of main shaft in the operating condition, and can be born compared with big load.
The embodiment of the invention provides a kind of spindle assemblies of biplane grinding machine that can be realized said effect.It below will knot
Attached drawing is closed the spindle assemblies of the biplane grinding machine of the embodiment of the present invention are described in detail.
As shown in Figs. 1-2, the spindle assemblies of biplane grinding machine provided in an embodiment of the present invention include main shaft 1, collar bush 20
With first bearing group.The first end of main shaft 1 is connect with grinding wheel 25, and the second end of main shaft 1 is equipped with rotary joint 26.Collar bush 20 with
Main shaft 1 is coaxially sheathed on main shaft 1.First bearing group is set to the first end of main shaft 1, and is set to collar bush 20 and main shaft
Between 1.Specifically, first bearing group include the first radial bearing 5, the first thrust bearing 8 and the second thrust bearing 10, first to
Mandrel is held the 5, first thrust bearing 8 and the second thrust bearing 10 and is successively sheathed on along the first end of main shaft 1 to the second end of main shaft 1
On main shaft 1.Wherein, be equipped with the first inner spacing collar 6 between the first radial bearing 5 and the first thrust bearing 8, the first thrust bearing 8 with
The first outer separator 7 is equipped between collar bush 20；Axial direction between second thrust bearing 10 and the first thrust bearing 8 along main shaft 1 is set
Have elastic component 21.
Since the first bearing group being arranged on the main shaft 1 of the embodiment of the present invention includes the first radial bearing 5, the first thrust axis
Hold 8 and second thrust bearing 10, therefore, the embodiment of the present invention can by the first inner spacing collar 6 and the first outer separator 7 to first to
Mandrel holds 5 implementation radial tightenings, and the elastic element 21 by being axially arranged is to the first thrust bearing 8 and the second thrust bearing
10 implement axial pretightening, are able to maintain setting with bearing each in the elongation of 1 expanded by heating of main shaft and preload, to guarantee main shaft 1
Rigidity and running accuracy.
In embodiments of the present invention, the first radial bearing 5 can be taper hole Biserial cylindrical roller bearing, the first thrust bearing
8 and second thrust bearing 10 can be single direction thrust ball bearing or unilateral thrust cylinder roller bearing.Therefore, the embodiment of the present invention
Spindle shaft can be made to rigidity reinforced by using taper hole Biserial cylindrical roller bearing and thrust bearing pairing use, be suitable for big
Load grinding.
As shown in Figure 1, main shaft 1 has a centre bore, centre bore can with water flowing, in grinding from cooling effect.Main shaft 1
First end is equipped with flange, and flange is connect by ring flange 24 with grinding wheel 25.Specifically, ring flange 24 is fixed on grinding wheel 25, main
The flange of axis 1 is fixedly connected by bolt with ring flange 24.
In embodiments of the present invention, main in order to guarantee the relative position between collar bush 20 and main shaft 1 and ring flange 24
Preceding gland 2 is equipped between axle sleeve 20 and the flange of main shaft 1.Specifically, adjustment can be equipped between preceding gland 2 and collar bush 20
Gasket 3 and rubber ring 22, to ensure that the leakproofness between preceding gland 2 and collar bush 20.
There is good leakproofness for gland 2 before making and between flange, the flange surface opposite with preceding gland 2 is equipped with the
One male and fomale(M&F), preceding gland 2 and the opposite surface of flange are equipped with the second male and fomale(M&F) corresponding with the first male and fomale(M&F), to pass through first
The non-contact gap that cooperatively forms of male and fomale(M&F) and the second male and fomale(M&F) seals.
In order to further increase, preceding gland 2 is extended with extension to main shaft 1 (i.e. before gland 2 to its axis direction), extends
Portion is in contact with the first radial bearing 5.Since the first radial bearing 5 is located in collar bush 20 close to the end face of 25 one end of grinding wheel
Portion, therefore, extension and preceding gland 2 form cascaded surface, and the thickness of extension is less than the thickness at the other positions of preceding gland 2.
Since extension is not contacted with main shaft 1, it will form a space between extension, the first radial bearing 5 and flange,
It needs to be equipped with preceding spacer 4 in the space between extension, the first radial bearing 5 and flange, to enhance leakproofness.Due to prolonging
Extending portion and preceding gland 2 form cascaded surface, therefore, also will form a space between extension, preceding spacer 4 and flange, need
Sealing ring 23 is equipped in space between extension, preceding spacer 4 and flange, to improve its leakproofness.
In embodiments of the present invention, sealing ring 23 can form contact seal.Wherein, sealing ring 23 can be close for V-type
Seal can also be y-type seal ring, can also be lip-type packing.
Therefore, the embodiment of the present invention can combine contactless and two kinds of sealing means of contact, to prevent from being ground
Liquid enters main shaft, pollutes bearing, causes bearing premature breakdown.
As illustrated in fig. 1 and 2, in embodiments of the present invention, it is equipped with and pushes away between the second thrust bearing 10 and the first thrust bearing 8
Power bearing block 9, elastic element 21 are axially set in thrust metal 9 along thrust metal 9.
As shown in figure 3, the both ends of thrust metal 9 be respectively provided with accommodate the first thrust bearing 8 the first groove and
For accommodating the second groove of the second thrust bearing 10, the slot bottom of the second groove is equipped with mounting hole 91, and elastic element is set to peace
It fills in hole 91.The circumferentially distributed multiple installations in bottom surface for the second groove that thrust metal 9 is used to accommodate the second thrust bearing 10
Hole 91, each mounting hole 91 are arranged along the axial direction of thrust metal, and the quantity of mounting hole 91 is identical as the quantity of elastic element 21.
Elastic element 21 is set in mounting hole 91, wherein elastic element 21 can be helical spring or butterfly spring.
As shown in figure 4, in one embodiment of the invention, mounting hole 91 is blind hole, one end of each elastic element 21
The second thrust bearing 10 is resisted, the other end is set to the bottom surface of the mounting hole 91.As shown in figure 5, in of the invention another
In embodiment, mounting hole 91 is through-hole, and one end of each elastic element 21 resists the second thrust bearing 10, and the other end resists first
Thrust bearing 8.
In embodiments of the present invention, main shaft 1 is also arranged with the first locking nut 12, and the first locking nut 12 is set to second
Thrust bearing 10 is equipped with first between the side of the second end of main shaft 1, the first locking nut 12 and the second thrust bearing 10
Nut spacer 11, the first locking nut 12 play the role of locking to first bearing group.
The preload principle of the first bearing group of the embodiment of the present invention is, by the thickness of spacer 4 before configuring, to make first
The inner ring and main shaft 1 of radial bearing 5 are interference fitted, and so that main shaft 1 is formed radial centering and are pre-tightened, and ensure that the radial rigid of main shaft 1
Property and running accuracy；Simultaneously as the elastic element 21 in each mounting hole 91 is slightly above installed in the case where freedom is without stress condition
The hole depth in hole 91, when the first locking nut 12 is locked, elastic element 21 is made the second thrust bearing 10 and pushes away by slightly compressed
The bottom surface of second groove of power bearing block 9 is bonded, and is realized the axial pretightening of the first thrust bearing 8 and the second thrust bearing 10, is made
Main shaft 1 obtains good axial rigidity.In 1 low-speed running of main shaft, thrust metal 9 plays rigid spacer；When main shaft 1 is long
Between when operating or running at high speed, the bearing temperature raising of main shaft 1 makes main shaft 1 generate heat, and causes main shaft 1 that elongation axially occurs along it and becomes
At this moment shape can be compensated by the elongation of elastic element 21, played by the elastic element 21 being arranged in thrust metal 9
Level pressure preload effect, so that main shaft 1 can be realized axial floating during temperature change, and will not obviously increase or reduce master
The initial axial pre-load of axis 1, that is, ensure that the axial stiffness of main shaft 1, keep the performance of main shaft 1 more stable.
In embodiments of the present invention, as shown in Figure 1, the second end on main shaft 1 close to main shaft 1 is arranged with the second radial bearing
15, and the second radial bearing 15 is set between main shaft 1 and collar bush 20.Wherein, the second inner spacing collar is also arranged on main shaft 1
13, the second outer separator 14, rear pressing cover 16, the second nut spacer 17 and the second locking nut 18, outside the second inner spacing collar 13 and second
Spacer 14 is set to the second radial bearing 15 close to the side of the first end of main shaft 1, rear pressing cover 16, the second nut spacer 17 and
Two locking nuts 18 are set in turn in the second radial bearing 15 close to the side of the second end of main shaft 1.
Specifically, the position that main shaft 1 and collar bush 20 accommodate the second radial bearing 15 is not equipped with step surface, the platform of main shaft 1
Be additionally provided with the second inner spacing collar 13 between terrace and the second radial bearing 15, the step surface of collar bush 20 and the second radial bearing 15 it
Between be additionally provided with the second outer separator 14, the rear pressure of the axial position for limiting the second radial bearing 15 is also arranged on main shaft 1
Lid 16, the second nut spacer 17 and the second locking nut 18.
Wherein, 18 axial locking of the second locking nut, make the outer ring lower end surface of the second radial bearing 15 by second it is outer every
Set 14 and rear pressing cover 16 axially fasten.Although the Internal and external cycle of the second radial bearing 15 of the second end of main shaft 1 is all fixed,
Since the second radial bearing 15 is using taper hole Biserial cylindrical roller bearing, the second inner spacing collar 14 of setting can be passed through
Thickness, make the second radial bearing 15 inner ring and main shaft step surface be interference fitted, make main shaft 1 formed radial centering simultaneously
It pre-tightens, when main shaft 1 runs at high speed, the bearing temperature raising of main shaft 1 makes spindle heat generation, and main shaft 1 is caused axially to be stretched along it
When long deformation, the displacement of the first end of main shaft 1 is flexible to be carried out in radial bearing 15, not will cause and preload excessive and bearing hair
The adverse consequences such as hot serious.
As shown in fig. 6, being additionally provided with screw rod attachment base 19 and two on the outside of the interlude of collar bush 20 in the embodiment of the present invention
A balance attachment base 27.Wherein, screw rod attachment base 19 is for connecting infeed mean (not shown), and balance attachment base 27 is for connecting
Tap into the equalizing feature (not shown) in.
The installation method of the spindle assemblies of biplane grinding machine described in the embodiment of the present invention is as follows:
One, required outsourcing piece is ready, each part of processing is processed in place by drawing, wherein before in spacer 4, second every
Match grinding when set 13, adjustment 3 made allowance of gasket are to be installed.
Two, the first radial bearing 5 must adjust clearance during installation, and the method for adjusting clearance is by adjusting preceding spacer 4
Thickness makes the radial internal clearance of the first radial bearing 5 reach specified value, to obtain certain preload.Adjust clearance
Specific step is as follows: (1) inner ring of the first radial bearing 5 being lightly mounted on 1 first end of main shaft close to the position of flange；
(2) at a distance from using the inner ring end face of slip gauge the first radial bearing 5 of measurement between the shaft shoulder end face of main shaft 1；(3) before interim processing
4 width of spacer is packed into the preceding spacer 4 of interim processing to institute's measured value (4) on main shaft 1, then by the inner ring of the first radial bearing 5
It is mounted on main shaft 1；(5) by amesdial against the outer ring of the first radial bearing 5, the radial direction along the first radial bearing 5 is moved
Dynamic outer ring, measures the radial internal clearance of the first radial bearing 5 at this time；(6) the first radial bearing 5 and preceding spacer 4 are dismantled from axis 1；
(7) according to preset radial internal clearance value, the inner ring amount of squeezing into of target residual radial internal clearance is calculated according to taper, needed for you can get it
The width dimensions of preceding spacer 4；(8) thickness of preceding spacer 4 is matched and is milled to required width dimensions；(9) by first to mandrel
Hold 5 and preceding spacer 4 be mounted on main shaft 1, be sufficiently pressed into 5 inner ring of the first radial bearing, the end face of spacer 4 and first centripetal before making
The inner ring end face of bearing 5, the end face of preceding spacer 4 are bonded completely with each mating surface of the shaft shoulder end face of main shaft 1；(10) with same
Method with grinding the second inner spacing collar 13.
Three, first by preceding spacer 4 on the shaft shoulder of the first end of main shaft 1, drive end bearing bracket 2, rubber ring 22, sealing ring 23 are put
The first end of main shaft 1 is to be installed, and the first radial bearing 5 is packed into main shaft 1, then by the first inner spacing collar 6, the first outer separator 7, the
One thrust bearing 8, thrust metal 9, elastic element 21, the second radial bearing 10, the first nut spacer 11 and the first locking screw
Mother 12 is successively set on main shaft 1, tightens the first locking nut 12 by preset torque with torque spanner.
Four, the above-mentioned component installed is fitted into collar bush 20, measures collar bush 20 close to the end face and front end of grinding wheel 25
The distance of lid 2 adjusts the thickness of gasket 3 according to this numerical value match grinding, will adjustment gasket 3 loading collar bush 20 and drive end bearing bracket after match grinding
Between 2, the screw of drive end bearing bracket 2 and collar bush 20, i.e. installation of the completion spindle assemblies close to 25 one end of grinding wheel are then locked.
Five, component of the spindle assemblies far from 25 one end of grinding wheel is installed: the second inner spacing collar 13, the second outer separator of milled will be matched
14, the second radial bearing 15 and the second nut spacer 17 are fitted into main shaft 1 and collar bush 20, are locked by regulation torque locking second
Nut 18 fixes the inner ring of the second radial bearing 15, and installation rear pressing cover 16 fastens the outer ring of the second radial bearing 15.
It should be noted that in the embodiment of the present invention, the only vertical biplane to the rotary shaft of grinding wheel along vertical direction
Grinding machine is illustrated, but the present invention and is defined in this, for example, can also apply to the rotary shaft of grinding wheel in the horizontal direction sleeping
Formula biplane grinding machine.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (8)
1. a kind of spindle assemblies of biplane grinding machine characterized by comprising
The first end of main shaft (1), the main shaft (1) is connect with grinding wheel (25), and the second end of the main shaft is equipped with rotary joint
(26)；
Collar bush (20), the collar bush (20) are sheathed on the main shaft (1)；
First bearing group, the first bearing group are set to the first end of the main shaft (1), and are set to the collar bush (20)
Between the main shaft (1)；The first bearing group includes the first radial bearing (5), the first thrust bearing (8) and the second thrust
Bearing (10), first radial bearing (5), first thrust bearing (8) and second thrust bearing (10) are along described
The first end of main shaft (1) is successively sheathed on the main shaft (1) to the second end of the main shaft (1)；
Wherein, the first inner spacing collar (6) are equipped between first radial bearing (5) and first thrust bearing (8), described the
The first outer separator (7) are equipped between one thrust bearing (8) and the collar bush (20)；Second thrust bearing (10) with it is described
Thrust metal (9) are equipped between first thrust bearing (8), the both ends of the thrust metal (9) are respectively provided with receiving
First groove of first thrust bearing (8) and the second groove for accommodating second thrust bearing (10), described
The slot bottom of two grooves is axially arranged with mounting hole (91) along the thrust metal (9), along the master in the mounting hole (91)
Axis is axially arranged with elastic element (21).
2. the spindle assemblies of biplane grinding machine according to claim 1, which is characterized in that the first end of the main shaft (1)
Equipped with flange, the flange is connect by ring flange (24) with the grinding wheel (25).
3. the spindle assemblies of biplane grinding machine according to claim 2, which is characterized in that the collar bush (20) with it is described
Preceding gland (2) are equipped between the flange of main shaft (1), adjustment gasket is equipped between the preceding gland (2) and the collar bush (20)
(3) and rubber ring (22).
4. the spindle assemblies of biplane grinding machine according to claim 3, which is characterized in that the flange and the preceding gland
(2) opposite surface is equipped with the first male and fomale(M&F), the preceding gland (2) surface opposite with the flange equipped with it is described first recessed
Corresponding second male and fomale(M&F) in convex surface.
5. the spindle assemblies of biplane grinding machine according to claim 4, which is characterized in that preceding gland (2) Xiang Suoshu
Main shaft (1) is extended with extension, and the extension is in contact with first radial bearing (5), the extension, described first
Preceding spacer (4) are equipped in space between radial bearing (5) and the flange, the extension, the preceding spacer (4) and described
Sealing ring (23) are equipped in space between flange.
6. the spindle assemblies of biplane grinding machine according to claim 1, which is characterized in that the main shaft (1) is also arranged with
First locking nut (12), first locking nut (12) are set to second thrust bearing (10) close to the main shaft
(1) side of second end is equipped with the first nut between first locking nut (12) and second thrust bearing (10)
Spacer 11.
7. the spindle assemblies of biplane grinding machine according to claim 1, which is characterized in that close to institute on the main shaft (1)
The second end for stating main shaft (1) is arranged with the second radial bearing (15), and second radial bearing (15) is set to the main shaft
(1) between the collar bush (20).
8. the spindle assemblies of biplane grinding machine according to claim 7, which is characterized in that be also arranged on the main shaft (1)
There are the second inner spacing collar (13), the second outer separator (14), rear pressing cover (16), the second nut spacer (17) and the second locking nut
(18), second inner spacing collar (13) and second outer separator (14) are set to second radial bearing (15) close to described
The side of the first end of main shaft (1), the rear pressing cover (16), the second nut spacer (17) and second locking nut
(18) second radial bearing (15) is set in turn in close to the side of the second end of the main shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910323957.2A CN110039444A (en) | 2019-04-22 | 2019-04-22 | A kind of spindle assemblies of biplane grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910323957.2A CN110039444A (en) | 2019-04-22 | 2019-04-22 | A kind of spindle assemblies of biplane grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110039444A true CN110039444A (en) | 2019-07-23 |
Family
ID=67278423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910323957.2A Pending CN110039444A (en) | 2019-04-22 | 2019-04-22 | A kind of spindle assemblies of biplane grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110039444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792369A (en) * | 2021-02-09 | 2021-05-14 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
-
2019
- 2019-04-22 CN CN201910323957.2A patent/CN110039444A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792369A (en) * | 2021-02-09 | 2021-05-14 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
| CN112792369B (en) * | 2021-02-09 | 2022-04-29 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
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