CN110103041A - A kind of machine tool chief axis holds the flexible adjustment device of running accuracy - Google Patents
A kind of machine tool chief axis holds the flexible adjustment device of running accuracy Download PDFInfo
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- CN110103041A CN110103041A CN201910524607.2A CN201910524607A CN110103041A CN 110103041 A CN110103041 A CN 110103041A CN 201910524607 A CN201910524607 A CN 201910524607A CN 110103041 A CN110103041 A CN 110103041A
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- tool chief
- chief axis
- bearing
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- 239000000463 material Substances 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims description 34
- 239000002826 coolant Substances 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses the flexible adjustment devices that a kind of machine tool chief axis holds running accuracy, mainly include machine tool chief axis, base bearing fixing sleeve, the fixed inner ring of base bearing flexibility and flexible fixed outer ring；The machine tool chief axis is fixed in base bearing fixing sleeve by base bearing；The base bearing mainly includes bearing inner ring, outer race and bearing ball；The flexible fixed inner ring is arranged between the main shaft and bearing inner ring；The material hardness of the flexible fixed inner ring is lower than the material hardness of the main shaft and the material hardness of bearing inner ring；The flexible fixed outer ring is arranged between the base bearing fixing sleeve and outer race；The material hardness of the flexible fixed outer ring is lower than the material hardness of the base bearing fixing sleeve and the material hardness of outer race.The present invention is reached machine tool chief axis and holds self balancing purpose by the flexible fixed outer ring of setting and flexible fixed inner ring to absorb the vibration of outer race and bearing inner ring brought by bearing ball moves.
Description
Technical field
The invention belongs to precision machinery technology fields, and in particular to a kind of machine tool chief axis holds the flexible adjustment dress of running accuracy
It sets.
Background technique
The indices of precision machine tool must all reach very high level.Influence precision machine tool machining accuracy because being known as
Very much, wherein most basic influence factor is mechanical oscillation.
On the one hand the reason of causing vibration depends on the structure precision of precision machine tool itself, be heated by component
Caused by deformation.
For example, the bearing ball of the base bearing of precision machine tool in operation can be at the bounce generated axially and radially, seriously
Influence machining accuracy.Precision machine tool base bearing is affected by a temperature increase in real-world operation, and precision can also change.
The present invention will be directed to above-mentioned influence factor, improve to the mounting structure of the base bearing of precision machine tool.
Summary of the invention
The skill that the base bearing of precision machine tool is beated both axially and radially caused by the present invention is directed to due to bearing ball movement
Art problem proposes between the outer race that machine tool chief axis is held and base bearing fixing sleeve, between bearing inner ring and machine tool chief axis
The solution of flexible fixed outer ring and flexible fixed inner ring is respectively set.Meanwhile it can temperature raising when being operated for base bearing
And the technical issues of leading to bearing inner ring, outer race expansion, propose the outer race, bearing inner ring held in machine tool chief axis
The solution of surface setting cooling pipe.
The present invention is realized by technical solution in detail below:
The present invention provides the flexible adjustment devices that a kind of machine tool chief axis holds running accuracy, mainly include machine tool chief axis, master
Bearing fixing sleeve, base bearing, flexible fixed inner ring；The machine tool chief axis is fixed in base bearing fixing sleeve by base bearing；Institute
Stating base bearing mainly includes bearing inner ring, outer race and bearing ball；The flexible fixed inner ring setting the main shaft with
Between bearing inner ring；The material hardness and bearing inner ring of the material hardness of the flexible fixed inner ring lower than the main shaft
Material hardness.
The present invention also provides the flexible adjustment devices that another machine tool chief axis holds running accuracy, mainly include lathe master
Axis, base bearing fixing sleeve, base bearing, flexible fixed outer ring；The machine tool chief axis is fixed on base bearing fixing sleeve by base bearing
It is interior；The base bearing mainly includes bearing inner ring, outer race and bearing ball；The flexible fixed outer ring is arranged in the master
Between bearing fixing sleeve and outer race；The material hardness of the flexible fixed outer ring is lower than the material of the base bearing fixing sleeve
The material hardness of hardness and outer race.
The present invention also provides the flexible adjustment devices that another machine tool chief axis holds running accuracy, mainly include lathe master
The fixed inner ring of axis, base bearing fixing sleeve, base bearing flexibility and flexible fixed outer ring；The machine tool chief axis is fixed on by base bearing
In base bearing fixing sleeve；The base bearing mainly includes bearing inner ring, outer race and bearing ball；The flexible fixed inner ring
It is arranged between the main shaft and bearing inner ring；The material hardness of the flexible fixed inner ring is hard lower than the material of the main shaft
The material hardness of degree and bearing inner ring；The flexible fixed outer ring setting the base bearing fixing sleeve and outer race it
Between；The material hardness of the flexible fixed outer ring is lower than the material hardness of the base bearing fixing sleeve and the material of outer race
Expect hardness.
As a preference, the flexible fixed outer ring is arranged to the annular that section is " П " shape, outer race is encased.
As a preference, the flexible fixed inner ring is arranged to the annular that section is " П " shape, bearing inner ring is encased.
As a preference, the machine tool chief axis holds the flexible adjustment device of running accuracy, it further include that outer race is cooling
Pipeline；Helicla flute one is opened up in the interior surface that the flexible fixed outer ring is contacted with outer race, the outer race is cold
But Pipe installing is in the helicla flute one.
Further, the both ends of the outer race cooling pipe are drawn from the base bearing fixing sleeve, connection cooling
Agent source one and pumping system one form circulation loop.
As a preference, the machine tool chief axis holds the flexible adjustment device of running accuracy, it further include that bearing inner ring is cooling
Pipeline；Helicla flute two is opened up in the interior surface that the flexible fixed inner ring is contacted with bearing inner ring, the bearing inner ring is cold
But Pipe installing is in the helicla flute two.
Further, the both ends of the bearing inner ring cooling pipe are drawn from the machine tool chief axis, connect coolant
Source two and pumping system two form circulation loop, and coolant source two and pumping system two are integrated on machine tool chief axis.
The present invention passes through between the outer race that machine tool chief axis is held and base bearing fixing sleeve, bearing inner ring and machine tool chief axis
Between flexible fixed outer ring and flexible fixed inner ring is respectively set, to absorb the outer race brought by bearing ball moves
With the vibration of bearing inner ring, runs the ball of bearing and tend to run axially and radially reference center's line close to bearing ball, reach
Self balancing purpose is held to machine tool chief axis.
In addition, the present invention held in machine tool chief axis outer race, bearing inner ring surface (or only in the table of outer race
Face) setting cooling pipe, it is increased by the temperature of limitation outer race, bearing inner ring, is effectively controlled outside bearing inner ring and bearing
The expansion of ring achievees the purpose that precision machine tool base bearing operates under controllable accurate degree.
In addition, by holding the flexible fixed outer ring of setting, flexible fixed inner ring for machine tool chief axis and cooperating cold in the present invention
But the comprehensive means of pipeline can make precision machine tool base bearing hardly vibrated or temperature rise influence, greatly improve processing
Precision.
Detailed description of the invention
Fig. 1 is the embodiment one for the flexible adjustment device that machine tool chief axis of the present invention holds running accuracy along machine tool chief axis radial direction
The partial schematic diagram of cross-section structure；
Fig. 2 is the embodiment two for the flexible adjustment device that machine tool chief axis of the present invention holds running accuracy along machine tool chief axis radial direction
The schematic diagram of cross-section structure；
Fig. 3 is the embodiment three for the flexible adjustment device that machine tool chief axis of the present invention holds running accuracy along machine tool chief axis radial direction
The partial schematic diagram of cross-section structure；
Fig. 4 is the enlarged drawing of partial structurtes in Fig. 3；
Fig. 5 is the embodiment three for the flexible adjustment device that machine tool chief axis of the present invention holds running accuracy along machine tool chief axis axial direction
The partial schematic diagram of cross-section structure；
Fig. 6 is the example IV for the flexible adjustment device that machine tool chief axis of the present invention holds running accuracy along machine tool chief axis radial direction
The partial schematic diagram of cross-section structure；
Fig. 7 is the example IV for the flexible adjustment device that machine tool chief axis of the present invention holds running accuracy along machine tool chief axis axial direction
The partial schematic diagram of cross-section structure；
Fig. 8 be II in Fig. 7 at partial enlarged view.
In figure:
A, machine tool chief axis；
B, base bearing fixing sleeve；
D, end ring；
F, outer race and flexibility fix axial outer ring, radial direction instantaneous force and reaction force direction；
F ', bearing inner ring and flexibility fix axial inner ring, radial direction instantaneous force and reaction force direction；
G, the instantaneous axial runout direction of bearing ball；
L, bearing ball axial direction reference center line；
L ', bearing ball radial reference center line；
1, bearing inner ring；
2, outer race；
3, bearing ball；
4, flexible fixed inner ring；
5, flexible fixed outer ring；
6, outer race cooling pipe；
7, bearing inner ring cooling pipe.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing:
Fig. 1 shows first specific embodiment of the invention, and a kind of machine tool chief axis holds the flexible adjustment dress of running accuracy
It sets, mainly includes machine tool chief axis A, base bearing fixing sleeve B, base bearing, flexible fixed inner ring 4.
The machine tool chief axis A is fixed in base bearing fixing sleeve B by base bearing.Base bearing fixing sleeve B can be machine
The other structures component of bed.
The base bearing mainly includes bearing inner ring 1, outer race 2 and bearing ball 3.
The flexible fixed inner ring 4 is arranged between the principal axis A and bearing inner ring 1.The material of the flexible fixed inner ring 4
Expect hardness lower than the material hardness of the principal axis A and the material hardness of bearing inner ring 1.The flexible fixed inner ring 4 can be with thing
It is first attached to fixed in the principal axis A, then base bearing (bearing inner ring) is assemblied in the principal axis A again.
Fig. 2 shows second specific embodiment of the invention, a kind of machine tool chief axis holds the flexible adjustment dress of running accuracy
It sets, mainly includes machine tool chief axis A, base bearing fixing sleeve B, base bearing, flexible fixed outer ring 5.
The machine tool chief axis A is fixed in base bearing fixing sleeve B by base bearing.Base bearing fixing sleeve B can be machine
The other structures component of bed.
The base bearing mainly includes bearing inner ring 1, outer race 2 and bearing ball 3.
The flexible fixed outer ring 5 is arranged between the base bearing fixing sleeve B and outer race 2.It is described flexible fixed
The material hardness of material hardness of the material hardness of outer ring 5 lower than the base bearing fixing sleeve B and outer race 2.It is described soft
Property fixed outer ring 5 can be attached to fixed in advance on the outer race 2, base bearing (outer race) is then assemblied in institute again
It states in base bearing fixing sleeve B.
Fig. 3 shows third specific embodiment of the invention, and a kind of machine tool chief axis holds the flexible adjustment dress of running accuracy
It sets, mainly includes machine tool chief axis A, base bearing fixing sleeve B, the fixed inner ring 4 of base bearing flexibility and flexible fixed outer ring 5.
The machine tool chief axis A is fixed in base bearing fixing sleeve B by base bearing, and base bearing fixing sleeve B can be machine
The other structures component of bed.
The base bearing mainly includes bearing inner ring 1, outer race 2 and bearing ball 3.
The flexible fixed inner ring 4 is arranged between the principal axis A and bearing inner ring 1.The material of the flexible fixed inner ring 4
Expect hardness lower than the material hardness of the principal axis A and the material hardness of bearing inner ring 1.The flexible fixed inner ring 4 can be with thing
It is first attached to fixed in the principal axis A, then base bearing (bearing inner ring) is assemblied in the principal axis A again.
The flexible fixed outer ring 5 is arranged between the base bearing fixing sleeve B and outer race 2.It is described flexible fixed
The material hardness of material hardness of the material hardness of outer ring 5 lower than the base bearing fixing sleeve B and outer race 2.It is described soft
Property fixed outer ring 5 can be attached to fixed in advance on the outer race 2, base bearing (outer race) is then assemblied in institute again
It states in base bearing fixing sleeve B.
Referring to attached drawing 5, show cross-section structure of the third specific embodiment in the axial direction of main shaft in figure, figure Fig. 4 and
Also the adjustment process that the present invention reduces base bearing vibration is respectively illustrated in Fig. 5.
In Fig. 5, the axle stretch end of machine tool chief axis A is arranged to Step Shaft.It is " П " shape that the fixed inner ring 4 of flexibility, which is arranged to section,
Annular, encase bearing inner ring 1；It is " П " shape that the fixed outer ring 5 of flexibility, which is arranged to, section opposite with the fixed inner ring 4 of flexibility,
Annular, encase outer race 2.Base bearing is placed between the machine tool chief axis A and base bearing fixing sleeve B, wherein flexibility is solid
Determine the shoulder that inner ring 4 resists the axle stretch end of machine tool chief axis A, the fixed outer ring 5 of flexibility resists the blocking junction in base bearing fixing sleeve B
Structure, the outer race and bearing inner ring of base bearing are separately positioned on flexible fixed outer ring 5 and fix in inner ring 4 with flexible；Utilize axis
It holds retaining ring D to lock base bearing, wherein end ring D is at least two individual components, and a part is mounted on machine tool chief axis A's
Base bearing fixing sleeve B is mounted on fixed flexible fixed inner ring 4 and bearing inner ring 1, another part in the groove of axle stretch end end
On with fixed flexible fixed outer ring 5 and outer race 2.
As shown in Figure 4 and 5, when base bearing generate mechanical oscillation when, with bearing ball along figure appended drawing reference " G "
Shown direction is instantaneously beated (along bearing ball axial direction reference center line L), will be gone out between outer race 2 and flexible fixed outer ring 5
In the now instantaneous force and reaction force as shown in appended drawing reference " F " both axially and radially, bearing inner ring 1 and flexibility are fixed
To occur the instantaneous force and reaction force as shown in appended drawing reference " F ' " both axially and radially between ring 4.At this point, due to
The fixed outer ring 5 of flexibility and the material hardness of flexible fixed inner ring 4 are relative to machine tool chief axis A, base bearing fixing sleeve B, bearing inner ring
1, the material hardness of outer race 2 wants small, therefore when the extruding by above-mentioned active force and reaction force, the fixed outer ring of flexibility
5 can show certain elasticity with flexible fixed inner ring 4, and this elastic behavior can be absorbed from outer race 2 and axis
The vibration for holding inner ring 1 runs the ball of bearing and tends to run axially and radially reference center's line close to bearing ball, reaches machine
The bed self balancing purpose of base bearing.
In conclusion the fixed outer ring 5 of flexibility of the invention and flexible fixed inner ring 4 can be avoided outer race 2 and axis
The vibration for holding inner ring 1 is transmitted on machine tool chief axis A, base bearing fixing sleeve B, ensure that whole absolute of machine tool chief axis and lathe
Stablize, to improve machining accuracy.
Fig. 1 or the operation logic of embodiment illustrated in fig. 2 are referring to the explanation above to attached drawing 3-5 illustrated embodiment.Fig. 1 or figure
The structure of 2 illustrated embodiments can absorb the vibration that machine tool chief axis holds generation to a certain extent, be applicable to small elevation and add
The precision machine tool of work precision.
Attached drawing 6 to attached drawing 8 shows the 4th specific embodiment of the invention, which is embodiment shown in Fig. 3
On the basis of further improvement.Temperature can increase when in view of base bearing operating, lead to base bearing expanded by heating, and then influence machine
The levelness of bed main shaft will lead to machining accuracy reduction.
A kind of machine tool chief axis of the invention holds the flexible adjustment device of running accuracy, mainly includes machine tool chief axis A, base bearing
Fixing sleeve B, base bearing, flexible fixed inner ring 4, flexible fixed outer ring 5, outer race cooling pipe 6 and bearing inner ring cooling tube
Road 7.
The machine tool chief axis A is fixed in base bearing fixing sleeve B by base bearing, and base bearing fixing sleeve B can be machine
The other structures component of bed.
The base bearing mainly includes bearing inner ring 1, outer race 2 and bearing ball 3.
The flexible fixed outer ring 5 is arranged between the base bearing fixing sleeve B and outer race 2.It is described flexible fixed
Outer ring 5 is preferably the material that hardness is lower than the base bearing fixing sleeve B and outer race 2.The flexible fixed outer ring 5 is arranged to
Section is the annular of " П " shape, encases outer race 2.
Referring to attached drawing 8, helicla flute one is opened up in the interior surface that flexible fixed outer ring 5 is contacted with outer race 2, it is described
Outer race cooling pipe 6 is mounted in the helicla flute one.The both ends of the outer race cooling pipe 6 are solid from the base bearing
Surely set B is drawn, and connects coolant source one and pumping system one forms circulation loop.The outer race cooling pipe 6 with it is described
Outer race 2 directly contacts.
The flexible fixed inner ring 4 is arranged between the principal axis A and bearing inner ring 1.The flexible fixed inner ring 4 is preferably
It is lower than the material of the principal axis A and bearing inner ring 1 for hardness.The flexible fixed inner ring 4 is arranged to and fixed 5 phase of outer ring of flexibility
Pair section be " П " shape annular, encase bearing inner ring 1；And in the fixed inner ring 4 of flexibility is contacted with bearing inner ring 1
Helicla flute two is opened up on portion surface, the bearing inner ring cooling pipe 7 is mounted in the helicla flute two.The bearing inner ring is cooling
The both ends of pipeline 7 are drawn from the machine tool chief axis, connect coolant source two and pumping system two forms circulation loop, coolant
Source two and pumping system two are integrated on machine tool chief axis.Or the bearing inner ring cooling pipe 7 is the circulation of both ends closure
Pipeline, the high coolant of inside filling thermal coefficient.
The flexible fixed inner ring 4 can be attached to fixed in advance in the principal axis A, then again that the bearing inner ring is cold
But pipeline 7 is arranged in helicla flute two, and then base bearing (bearing inner ring) is assemblied in the principal axis A.
Base bearing is placed between the machine tool chief axis A and base bearing fixing sleeve B, wherein the fixed inner ring 4 of flexibility resists machine
The shoulder of the axle stretch end of bed principal axis A, the fixed outer ring 5 of flexibility resist the barrier structure in base bearing fixing sleeve B, the bearing of base bearing
Outer ring and bearing inner ring are separately positioned on flexible fixed outer ring 5 and fix in inner ring 4 with flexible；Using end ring D by base bearing
Locking, wherein end ring D is at least two individual components, and a part is mounted on the groove of the axle stretch end end of machine tool chief axis A
It is interior to be mounted on base bearing fixing sleeve B fixed with fixed flexibility with fixed flexible fixed inner ring 4 and bearing inner ring 1, another part
Outer ring 5 and outer race 2.
Technical difficulty, technique requirement, cost due to setting bearing inner ring cooling pipe 7 etc. are than setting outer race
Cooling pipe 6 is much higher, in the occasion that some required precisions allow, can cancel bearing inner ring cooling tube in example IV
Road 7 and its coolant source two and pumping system two.
In conclusion the present invention held in machine tool chief axis outer race, bearing inner ring surface (or only in outer race
Surface) setting cooling pipe, it is increased by the temperature of limitation outer race, bearing inner ring, effectively controls bearing inner ring and bearing
The expansion of outer ring achievees the purpose that precision machine tool base bearing operates under controllable accurate degree.
In addition, by holding the flexible fixed outer ring of setting, flexible fixed inner ring for machine tool chief axis and cooperating cold in the present invention
But the comprehensive means of pipeline can make precision machine tool base bearing hardly vibrated or temperature rise influence, greatly improve processing
Precision.
The different technologies means that those skilled in the art can record embodiment one disclosed by the invention to example IV
It is used alone or is carried out selective combination, for example is not provided with flexible fixed outer ring and flexible fixed inner ring, is used only outside bearing
Ring cooling pipe and/or bearing inner ring cooling pipe, such as the only flexible fixed outer ring of setting and outer race cooling pipe, such as
The flexible fixed outer ring of setting and flexible fixed inner ring and outer race cooling pipe etc..These described schemes also be reflected in this Shen
In claims please.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
The present invention is not limited to above to the description of embodiment, the content that those skilled in the art disclose according to the present invention,
The improvement and modification that need not be carried out by creative work on the basis of the present invention, all should protection scope of the present invention it
It is interior.
Claims (10)
1. the flexible adjustment device that a kind of machine tool chief axis holds running accuracy, it is characterised in that:
It mainly include machine tool chief axis, base bearing fixing sleeve, base bearing, flexible fixed inner ring；
The machine tool chief axis is fixed in base bearing fixing sleeve by base bearing；
The base bearing mainly includes bearing inner ring, outer race and bearing ball；
The flexible fixed inner ring is arranged between the main shaft and bearing inner ring；
The material hardness of the flexible fixed inner ring is lower than the material hardness of the main shaft and the material hardness of bearing inner ring.
2. the flexible adjustment device that a kind of machine tool chief axis holds running accuracy, it is characterised in that:
It mainly include machine tool chief axis, base bearing fixing sleeve, base bearing, flexible fixed outer ring；
The machine tool chief axis is fixed in base bearing fixing sleeve by base bearing；
The base bearing mainly includes bearing inner ring, outer race and bearing ball；
The flexible fixed outer ring is arranged between the base bearing fixing sleeve and outer race；
The material hardness of the flexible fixed outer ring is lower than the material hardness of the base bearing fixing sleeve and the material of outer race
Expect hardness.
3. the flexible adjustment device that a kind of machine tool chief axis according to claim 1 holds running accuracy, it is characterised in that:
The flexible adjustment device that a kind of machine tool chief axis holds running accuracy further includes flexible fixed outer ring；
The flexible fixed outer ring is arranged between the base bearing fixing sleeve and outer race；
The material hardness of the flexible fixed outer ring is lower than the material hardness of the base bearing fixing sleeve and the material of outer race
Expect hardness.
4. the flexible adjustment device that a kind of machine tool chief axis according to claim 2 or 3 holds running accuracy, it is characterised in that:
The machine tool chief axis holds the flexible adjustment device of running accuracy, further includes outer race cooling pipe；
Helicla flute one is opened up in the interior surface that the flexible fixed outer ring is contacted with outer race, the outer race is cooling
Pipe installing is in the helicla flute one.
5. the flexible adjustment device that a kind of machine tool chief axis according to claim 4 holds running accuracy, it is characterised in that:
The both ends of the outer race cooling pipe are drawn from the base bearing fixing sleeve, connect coolant source one and pumping system
One forms circulation loop.
6. the flexible adjustment device that a kind of machine tool chief axis according to claim 1 or 3 holds running accuracy, it is characterised in that:
The machine tool chief axis holds the flexible adjustment device of running accuracy, further includes bearing inner ring cooling pipe；
Helicla flute two is opened up in the interior surface that the flexible fixed inner ring is contacted with bearing inner ring, the bearing inner ring is cooling
Pipe installing is in the helicla flute two.
7. the flexible adjustment device that a kind of machine tool chief axis according to claim 6 holds running accuracy, it is characterised in that:
The both ends of the bearing inner ring cooling pipe are drawn from the machine tool chief axis, connect coolant source two and pumping system two
Circulation loop is formed, coolant source two and pumping system two are integrated on machine tool chief axis.
8. the flexible adjustment device that a kind of machine tool chief axis according to claim 3 holds running accuracy, it is characterised in that:
The machine tool chief axis holds the flexible adjustment device of running accuracy, further includes that outer race cooling pipe and bearing inner ring are cooling
Pipeline；
Helicla flute one is opened up in the interior surface that the flexible fixed outer ring is contacted with outer race, the outer race is cooling
Pipe installing is in the helicla flute one；
Helicla flute two is opened up in the interior surface that the flexible fixed inner ring is contacted with bearing inner ring, the bearing inner ring is cooling
Pipe installing is in the helicla flute two.
9. a kind of machine tool chief axis according to Claims 2 or 3 or 5 or 8 holds the flexible adjustment device of running accuracy, feature
It is:
The flexible fixed outer ring is arranged to the annular that section is " П " shape, encases outer race.
10. a kind of machine tool chief axis described according to claim 1 or 3 or 7 or 8 holds the flexible adjustment device of running accuracy, special
Sign is:
The flexible fixed inner ring is arranged to the annular that section is " П " shape, encases bearing inner ring.
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| CN201910524607.2A CN110103041A (en) | 2019-06-18 | 2019-06-18 | A kind of machine tool chief axis holds the flexible adjustment device of running accuracy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910524607.2A CN110103041A (en) | 2019-06-18 | 2019-06-18 | A kind of machine tool chief axis holds the flexible adjustment device of running accuracy |
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| CN201910524607.2A Pending CN110103041A (en) | 2019-06-18 | 2019-06-18 | A kind of machine tool chief axis holds the flexible adjustment device of running accuracy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535284A (en) * | 2019-10-08 | 2019-12-03 | 河南澈蓝环保技术有限公司 | A kind of mute motor of high-precision self-balancing |
| CN111113131A (en) * | 2019-12-30 | 2020-05-08 | 湖南中大创远数控装备有限公司 | Main shaft damping mechanism |
| CN111590092A (en) * | 2020-06-01 | 2020-08-28 | 珠海格力智能装备有限公司 | Shock attenuation cooling device and have its lathe |
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| CN210147490U (en) * | 2019-06-18 | 2020-03-17 | 河南澈蓝环保技术有限公司 | Flexible adjusting device for rotation precision of main bearing of machine tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110535284A (en) * | 2019-10-08 | 2019-12-03 | 河南澈蓝环保技术有限公司 | A kind of mute motor of high-precision self-balancing |
| CN110535284B (en) * | 2019-10-08 | 2024-04-05 | 河南澈蓝环保技术有限公司 | High-precision self-balancing mute motor |
| CN111113131A (en) * | 2019-12-30 | 2020-05-08 | 湖南中大创远数控装备有限公司 | Main shaft damping mechanism |
| CN111590092A (en) * | 2020-06-01 | 2020-08-28 | 珠海格力智能装备有限公司 | Shock attenuation cooling device and have its lathe |
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