CN108817422A - A kind of composite metal stock-removing machine main shaft - Google Patents
A kind of composite metal stock-removing machine main shaft Download PDFInfo
- Publication number
- CN108817422A CN108817422A CN201811001729.5A CN201811001729A CN108817422A CN 108817422 A CN108817422 A CN 108817422A CN 201811001729 A CN201811001729 A CN 201811001729A CN 108817422 A CN108817422 A CN 108817422A
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- CN
- China
- Prior art keywords
- main shaft
- bearing
- composite metal
- removing machine
- metal stock
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a kind of composite metal stock-removing machine main shafts, match including main shaft, bearing, axis body and with bearing the spacer ring to connect, the bearing is closely connect with main shaft and outside is covered by axis body, the elastic workpiece for generating elastic precompressed is connected on the outer ring of the bearing, the elastic workpiece is set to except spacer ring, and the spacer ring is set between main shaft and axis body.Compared to traditional technology, regardless of main shaft is in the slow-speed of revolution or high revolving speed, the present invention, which is able to maintain, compresses bearing, it can avoid bearing prepressing force power to disappear, the rotating accuracy that Metal Cutting Machine Tool main shaft can be effectively improved, avoids main shaft that play occurs at work, and machine finish can be improved.
Description
Technical field
The present invention relates to field of machine tool fittings, especially a kind of composite metal stock-removing machine main shaft.
Background technique
For Metal Cutting Machine Tool, there is higher equipment requirement for its main shaft and bearing.Currently, on the market plus
The main shaft bearing at work center is based solely on rigid precompressed or elastic precompressed generally to work：If main shaft bearing uses merely just
Property prestressing technology, then main shaft work when, due to main shaft temperature increase, thermal stretching can be generated, and thermal stretching is generally higher than other
The thermal stretching of part causes the original precompression to bearing to become smaller even zero, so that spindle rotation accuracy reduces, is working
Shi Fasheng play；On the other hand, if main shaft bearing uses merely elastic prestressing technology, when main shaft is in low speed, big surplus is cut
When, because cutting force is big, compared with rigid precompressed, elastic precompressed is rigidly weak, and spindle rotation accuracy can equally reduce.
Summary of the invention
It to solve the above-mentioned problems, can be effective the object of the present invention is to provide a kind of composite metal stock-removing machine main shaft
The rotating accuracy for improving Metal Cutting Machine Tool main shaft, avoids main shaft that play occurs at work.
In order to make up for the deficiencies of the prior art, the technical solution adopted by the present invention is that：
A kind of composite metal stock-removing machine main shaft, including main shaft, bearing, axis body and being matched with bearing connect every
Circle, the bearing is closely connect with main shaft and outside is covered by axis body, is connected on the outer ring of the bearing for generating elasticity
The elastic workpiece of precompressed, the elastic workpiece are set to except spacer ring, and the spacer ring is set between main shaft and axis body.
Further, the invention also includes the bumper block for placing elastic workpiece is used to support, the elastic workpiece is nested in
Within bumper block.
Further, it is provided with draining ring on the rear end of the axis body, is respectively arranged on the adjacent two sides of the draining ring
First water repellent component and the second water repellent component.
Further, the labyrinth ring of sealing leak-stopping effect has been provided between the bearing and the front end of main shaft.
Further, the gland of axially position effect has been installed on the front-end of spindle.
Further, the locknut of fixed function has been provided in the rear-end of spindle.
Further, the pressing ring of fixed function has been provided on the rear end of the main shaft.
Preferably, the elastic workpiece is spring.
Preferably, the bumper block is spring base.
The beneficial effects of the invention are as follows：It is main because main shaft is in the slow-speed of revolution when main shaft is in the slow-speed of revolution, the cutting of big surplus
Axis temperature rise is little, and main shaft elongation is small, and rigid precompressed is had an effect at this time；On the basis of main shaft rigidity precompressed, by bearing
Outer ring on connection setting elastic workpiece, when main shaft revolution at a high speed, main shaft temperature rise increase, main shaft elongation increase, rigid precompressed
When decrease, under the action of elastic workpiece, elastic precompressed is had an effect, it will be able to keep compressing bearing, it is pre- to can avoid bearing
Pressure disappears, to can avoid spindle rotation accuracy decline or play occurs.Therefore, the present invention can effectively improve metal-cutting machine
The rotating accuracy of bed main shaft, avoids main shaft that play occurs at work.
Detailed description of the invention
Present pre-ferred embodiments are provided, with reference to the accompanying drawing with the embodiment that the present invention will be described in detail.
Fig. 1 is the schematic diagram of the section structure of the invention.
Specific embodiment
Referring to Fig.1, a kind of composite metal stock-removing machine main shaft of the invention, including main shaft 1, bearing 2, axis body 3 and with
Bearing 2 matches the spacer ring 4 to connect, and the bearing 2 is closely connect with main shaft 1 and outside is covered by axis body 3, the bearing 2
The elastic workpiece 5 for generating elastic precompressed is connected on outer ring, the elastic workpiece 5 is set to except spacer ring 4, the spacer ring
4 are set between main shaft 1 and axis body 3.
Specifically, axis body 3 cooperates main shaft 1 that can carry out bearing 2 rigid precompressed, and spacer ring 4 can make main shaft 1 keep certain
Compactness, be positioned between main shaft 1 and axis body 3 and its stability can be improved；
Preferably, the elastic workpiece 5 is spring, can provide good elastic pressure, specifically helical spring, when
Other equivalent similar components so can also be used.
When main shaft 1 is in the slow-speed of revolution, the cutting of big surplus, because main shaft 1 is in the slow-speed of revolution, 1 temperature rise of main shaft is little, main shaft 1
Extend small, rigid precompressed is had an effect at this time；On the basis of the rigid precompressed of main shaft 1, set by being connected on the outer ring of bearing 2
Elastic workpiece 5 is set, when 1 revolution at a high speed of main shaft, 1 temperature rise of main shaft increases, and the elongation of main shaft 1 increases, when rigid precompressed weakens, in bullet
Property workpiece 5 under the action of, elastic precompressed is had an effect, it will be able to keep to bearing 2 compress, can avoid 2 precompression of bearing disappear,
To can avoid the decline of 1 rotating accuracy of main shaft or play occurs；Also, main shaft 1 is extended by meeting upward direction when thermal stretching, this is not
Position of tool tip is influenced, the machining accuracy of Metal Cutting Machine Tool can be also effectively improved.Therefore, the present invention can effectively improve metal cutting
The rotating accuracy of machine tool chief axis 1 avoids main shaft 1 that play occurs at work.
Further, referring to Fig.1, the invention also includes be used to support the bumper block 6 for placing elastic workpiece 5, the elasticity
Workpiece 5 is nested within bumper block 6；The effect that bumper block 6 is arranged is to provide good shallow storage space for elastic workpiece 5,
It will not arbitrarily be moved, in order to which it plays the role of stable elastic precompressed.
Preferably, the bumper block 6 is spring base, can carry out matched well with spring, so that its nesting is lived, with
Just good elastic precompressed is generated.
Further, referring to Fig.1, it is provided on the rear end of the axis body 3 and drains ring 7, on the adjacent two sides of the draining ring 7
It is respectively arranged with the first water repellent component 8 and the second water repellent component 9；Draining ring 7 can play guide functions, and in the phase of draining ring 7
Adjacent side is provided with water repellent component, can play waterproof effect from multiple angles；First water repellent component of ground 8 and second is anti-
Water assembly 9 can be waterproof apron etc.；And, it is preferable that one end of one end of the first water repellent component 8 and the second water repellent component 9
Mutually nested matching can both make 2 connections of the two more stable in this way, can also be complete by the gap being likely to occur between the two
It blocks entirely, greatly optimizes waterproof performance.
Further, referring to Fig.1, the labyrinth ring of sealing leak-stopping effect has been provided between the bearing 2 and the front end of main shaft 1
10, that is, there is certain gap, piston perforation can be played the role of to 1 front end of main shaft.
Further, referring to Fig.1, the gland 11 of axially position effect, the gland 11 have been installed on 1 front end of main shaft
Labyrinth ring 10 can also be subjected to solid lock, guarantee it with good mounting stability.
Further, referring to Fig.1, it has been provided with the locknut 12 of fixed function on 1 rear end of main shaft, ensure that main shaft 1 has
There is good mounting stability.
Further, referring to Fig.1, the pressing ring 13 of fixed function has been provided on the rear end of the main shaft 1, it can be further
Solid pressure effect is generated to main shaft 1, to improve its stability.
Presently preferred embodiments of the present invention and basic principle is discussed in detail in the above content, but the invention is not limited to
Above embodiment, those skilled in the art should be recognized that also have on the premise of without prejudice to spirit of the invention it is various
Equivalent variations and replacement, these equivalent variations and replacement all fall within the protetion scope of the claimed invention.
Claims (9)
1. a kind of composite metal stock-removing machine main shaft, including main shaft (1), bearing (2), axis body (3) and matched with bearing (2)
The spacer ring (4) to connect, it is characterised in that：The bearing (2) closely connect with main shaft (1) and outside is covered by axis body (3), described
The elastic workpiece (5) for generating elastic precompressed is connected on the outer ring of bearing (2), the elastic workpiece (5) is set to spacer ring
(4) except, the spacer ring (4) is set between main shaft (1) and axis body (3).
2. a kind of composite metal stock-removing machine main shaft according to claim 1, it is characterised in that：It further include being used to support
The bumper block (6) of elastic workpiece (5) is placed, the elastic workpiece (5) is nested within bumper block (6).
3. a kind of composite metal stock-removing machine main shaft according to claim 1, it is characterised in that：The axis body (3)
It is provided with draining ring (7) on rear end, is respectively arranged with the first water repellent component (8) and the on the adjacent two sides of draining ring (7)
Two water repellent components (9).
4. a kind of composite metal stock-removing machine main shaft according to claim 1, it is characterised in that：The bearing (2) with
The labyrinth ring (10) of sealing leak-stopping effect has been provided between the front end of main shaft (1).
5. a kind of composite metal stock-removing machine main shaft according to claim 1, it is characterised in that：Before the main shaft (1)
The gland (11) of axially position effect has been installed on end.
6. a kind of composite metal stock-removing machine main shaft according to claim 1, it is characterised in that：After the main shaft (1)
The locknut (12) of fixed function has been provided on end.
7. a kind of composite metal stock-removing machine main shaft according to claim 1, it is characterised in that：The main shaft (1)
The pressing ring (13) of fixed function has been provided on rear end.
8. a kind of composite metal stock-removing machine main shaft according to claim 2, it is characterised in that：The elastic workpiece
It (5) is spring.
9. a kind of composite metal stock-removing machine main shaft according to claim 8, it is characterised in that：The bumper block
It (6) is spring base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001729.5A CN108817422A (en) | 2018-08-30 | 2018-08-30 | A kind of composite metal stock-removing machine main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001729.5A CN108817422A (en) | 2018-08-30 | 2018-08-30 | A kind of composite metal stock-removing machine main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108817422A true CN108817422A (en) | 2018-11-16 |
Family
ID=64151739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811001729.5A Pending CN108817422A (en) | 2018-08-30 | 2018-08-30 | A kind of composite metal stock-removing machine main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108817422A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546263A (en) * | 2003-11-28 | 2004-11-17 | 湖南大学 | High speed main shaft pretension method and apparatus by integration of constant pressure pretension with positioning pretension |
| CN1817529A (en) * | 2006-03-08 | 2006-08-16 | 浙江大学 | Small high-speed constant-pressure prepressing apparatus of main bearing |
| CN203664691U (en) * | 2014-01-21 | 2014-06-25 | 台州市路桥区精达轴承厂 | Turning lathe spindle |
| CN203831235U (en) * | 2014-03-26 | 2014-09-17 | 慈溪市贝利轴承有限公司 | Water-proof and dust-proof structure for novel energy-saving motor spindle |
| CN104400018A (en) * | 2014-09-25 | 2015-03-11 | 广州市昊志机电股份有限公司 | Electric main shaft of turning and milling composite machine tool |
-
2018
- 2018-08-30 CN CN201811001729.5A patent/CN108817422A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546263A (en) * | 2003-11-28 | 2004-11-17 | 湖南大学 | High speed main shaft pretension method and apparatus by integration of constant pressure pretension with positioning pretension |
| CN1817529A (en) * | 2006-03-08 | 2006-08-16 | 浙江大学 | Small high-speed constant-pressure prepressing apparatus of main bearing |
| CN203664691U (en) * | 2014-01-21 | 2014-06-25 | 台州市路桥区精达轴承厂 | Turning lathe spindle |
| CN203831235U (en) * | 2014-03-26 | 2014-09-17 | 慈溪市贝利轴承有限公司 | Water-proof and dust-proof structure for novel energy-saving motor spindle |
| CN104400018A (en) * | 2014-09-25 | 2015-03-11 | 广州市昊志机电股份有限公司 | Electric main shaft of turning and milling composite machine tool |
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