CN101879608A - Sealing device for main shaft of numerical control machine tool - Google Patents
Sealing device for main shaft of numerical control machine tool Download PDFInfo
- Publication number
- CN101879608A CN101879608A CN201010212755XA CN201010212755A CN101879608A CN 101879608 A CN101879608 A CN 101879608A CN 201010212755X A CN201010212755X A CN 201010212755XA CN 201010212755 A CN201010212755 A CN 201010212755A CN 101879608 A CN101879608 A CN 101879608A
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- main shaft
- machine tool
- numerical control
- control machine
- sealing ring
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Abstract
The invention relates to a sealing device for a main shaft of a numerical control machine tool. The sealing device is assembled on the main shaft of the numerical control machine tool and comprises at least one sealing ring, a gasket and a sealing ring bracket, wherein the sealing ring and the gasket are tightly contacted with each other and rigidly matched in an inner ring of an end part supporting bearing of the main shaft of the numerical control machine tool; one side end face of the sealing ring is flush with the end face of the bearing; the sealing ring bracket is contacted with the end face of the sealing ring and the end face of the bearing; and the main shaft of the numerical control machine tool passes through and is tightly matched with the sealing ring, the gasket and the sealing ring bracket. Lubricating oil in a main shaft box can be prevented from leaking along the main shaft and external impurities, such as dust, coolant, metal filings and the like are prevented from entering the main shaft box and affecting the processing accuracy of the main shaft, so that the workpiece processing accuracy is improved and the service life of the main shaft is prolonged.
Description
Technical field
The present invention relates to a kind of sealing device, relate in particular to a kind of sealing device of main shaft of numerical control machine tool, it is assemblied on the main shaft of numerical control machine tool.
Background technology
In the Digit Control Machine Tool running, along with the fast rotational of main shaft, spill for preventing the lubricating oil in the main spindle box, usually to use oil sealing.The use of oil sealing not only can prevent leakage of oil, and can prevent that impurity such as extraneous dust, cooling fluid from entering in the main spindle box.But at present used oil sealing all is fixed on the end cap of bearing one end of supports main shaft, main axis rotation and oil sealing does not rotate.Such structure is dissatisfactory, rotation along with main shaft, friction certainly will to be produced between main shaft and the oil sealing, fraction time is long, main shaft not only can generate heat, and also can produce the gap between the two, thus main shaft can produce to beat and influences the precision of processing work, and the life-span of main shaft also can reduce in addition; Impurity such as the metal fillings of workpiece and cooling fluid can enter main spindle box besides, also can influence the running accuracy of main shaft.
Summary of the invention
For addressing the above problem, the invention provides a kind of sealing device of main shaft of numerical control machine tool, this device prevents the main spindle box leakage of oil, prevents that also impurity such as extraneous dust, cooling fluid, metal fillings from entering main spindle box.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of sealing device of main shaft of numerical control machine tool, be assemblied on the main shaft of numerical control machine tool, comprise at least one sealing ring, pad, the sealing ring support, described sealing ring and pad closely contact and are matched with firmly in the inner ring of end portion supports bearing of main shaft of numerical control machine tool, one side end face of described sealing ring is concordant with bearing face, and described sealing ring support contacts with sealing ring end face and bearing face, and described main shaft of numerical control machine tool passes sealing ring, pad and sealing ring support and closely cooperates with the three.
The sealing device comprises two sealing rings, a pad, and described pad is sandwiched between two sealing rings.
End at described sealing ring support has the end cap that passes main shaft of numerical control machine tool, the inner ring of this end cap is provided with the screw thread that matches with main shaft of numerical control machine tool, and the inner ring of this end cap has one section flange vertically, this end cap inner ring has vertically a groove at least, and described end cap fixes by pass groove tight fixed bolt and main shaft of numerical control machine tool radially at the flange place.
The inner ring of described end cap is evenly equipped with three grooves vertically.
The present invention is because of adopting sealing ring, pad, sealing ring support, sealing effectiveness is better, sealing ring, pad, sealing ring support, end cap and main shaft of numerical control machine tool closely cooperate, and sealing ring, pad and spring bearing inner ring closely cooperate, can be along with main shaft of numerical control machine tool rotates together, can not produce friction between sealing device and the main shaft of numerical control machine tool like this, therefore main shaft can not be worn, prevent that also main shaft from sharply heating up, and reduced beating of main shaft, improve the precision of processing work, increased the service life of main shaft.
The present invention can prevent that not only the lubricating oil in the main spindle box from missing along main shaft, prevents that also impurity such as extraneous dust, cooling fluid, metal fillings from entering the machining accuracy that main spindle box influences main shaft.
Description of drawings
The structural representation that Fig. 1 matches for the present invention and main shaft of numerical control machine tool and spring bearing, end cap.
Fig. 2 is the perspective view of end cap.
Among the figure: main shaft of numerical control machine tool 1, sealing ring 2, sealing ring end face 2-1, pad 3, sealing ring support 4, bearing 5, bearing face 5-1, end cap 6, inner ring 6-1, flange 6-2, groove 6-3, tight fixed bolt 7.
The specific embodiment
The present invention is further illustrated to closing drawings and Examples below.
As shown in Figure 1 and Figure 2, a kind of sealing device of main shaft of numerical control machine tool is assemblied on the main shaft of numerical control machine tool 1, comprises two sealing rings 2, a pad 3, sealing ring support 4.
Two sealing rings 2 closely contact in the inner ring of the end portion supports bearing 5 that also is matched with main shaft of numerical control machine tool 1 firmly with pad 3; One side end face 2-1 of sealing ring 2 is concordant with bearing 5 end face 5-1, and sealing ring support 4 contacts with sealing ring end face 2-1 and bearing face 5-1; Main shaft of numerical control machine tool 1 pass two sealing rings 2, pad 3 and sealing ring support 4 and with three's interference fit.
One end of sealing ring support 4 has the end cap 6 that passes main shaft of numerical control machine tool 1, the inner ring 6-1 of end cap 6 is provided with the screw thread that matches with main shaft of numerical control machine tool 1, the inner ring 6-1 of end cap 6 has one section flange 6-2 vertically, end cap inner ring 6-1 is evenly equipped with three groove 6-3 vertically, and end cap 1 fixes with main shaft of numerical control machine tool 1 by pass groove 6-3 tight fixed bolt 7 radially at flange 6-2 place.
The present invention has eliminated the friction between main shaft and the sealing device, and dustproof, waterproof, anti-bits, prevents leakage of oil simultaneously, and reduce beating of main shaft that improve the machining accuracy of workpiece, precision can reach in 0～0.005mm.
Claims (4)
1. the sealing device of a main shaft of numerical control machine tool, be assemblied on the main shaft of numerical control machine tool, it is characterized in that: comprise at least one sealing ring, pad, the sealing ring support, described sealing ring and pad closely contact and are matched with firmly in the inner ring of end portion supports bearing of main shaft of numerical control machine tool, one side end face of described sealing ring is concordant with bearing face, described sealing ring support contacts with sealing ring end face and bearing face, and described main shaft of numerical control machine tool passes sealing ring, pad and sealing ring support and closely cooperates with the three.
2. the sealing device of main shaft of numerical control machine tool according to claim 1, it is characterized in that: the sealing device comprises two sealing rings, a pad, described pad is sandwiched between two sealing rings.
3. the sealing device of main shaft of numerical control machine tool according to claim 1, it is characterized in that: the end at described sealing ring support has the end cap that passes main shaft of numerical control machine tool, the inner ring of this end cap is provided with the screw thread that matches with main shaft of numerical control machine tool, and the inner ring of this end cap has one section flange vertically, this end cap inner ring has vertically a groove at least, and described end cap fixes by pass groove tight fixed bolt and main shaft of numerical control machine tool radially at the flange place.
4. the sealing device of main shaft of numerical control machine tool according to claim 3, it is characterized in that: the inner ring of described end cap is evenly equipped with three grooves vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212755XA CN101879608A (en) | 2010-06-29 | 2010-06-29 | Sealing device for main shaft of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212755XA CN101879608A (en) | 2010-06-29 | 2010-06-29 | Sealing device for main shaft of numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101879608A true CN101879608A (en) | 2010-11-10 |
Family
ID=43051817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010212755XA Pending CN101879608A (en) | 2010-06-29 | 2010-06-29 | Sealing device for main shaft of numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101879608A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI460048B (en) * | 2012-02-20 | 2014-11-11 | Posa Machinery Co Ltd | Waterproof and dustproof mainshaft of processor |
| CN107570733A (en) * | 2017-09-29 | 2018-01-12 | 重庆市普创长顺机械有限公司 | Main spindle box of numerical control system with embedded arrestment mechanism |
| CN107598192A (en) * | 2017-09-29 | 2018-01-19 | 重庆市普创长顺机械有限公司 | Main spindle box of numerical control system |
| CN112943934A (en) * | 2021-02-04 | 2021-06-11 | 河南顿隆电子科技有限公司 | Machine tool spindle front end sealing structure |
-
2010
- 2010-06-29 CN CN201010212755XA patent/CN101879608A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI460048B (en) * | 2012-02-20 | 2014-11-11 | Posa Machinery Co Ltd | Waterproof and dustproof mainshaft of processor |
| CN107570733A (en) * | 2017-09-29 | 2018-01-12 | 重庆市普创长顺机械有限公司 | Main spindle box of numerical control system with embedded arrestment mechanism |
| CN107598192A (en) * | 2017-09-29 | 2018-01-19 | 重庆市普创长顺机械有限公司 | Main spindle box of numerical control system |
| CN107598192B (en) * | 2017-09-29 | 2024-03-15 | 广东智目科技有限公司 | Spindle box system of numerical control machine tool |
| CN107570733B (en) * | 2017-09-29 | 2024-06-11 | 西安亚太菁英智能装备有限公司 | Numerical control machine tool spindle box system with embedded brake mechanism |
| CN112943934A (en) * | 2021-02-04 | 2021-06-11 | 河南顿隆电子科技有限公司 | Machine tool spindle front end sealing structure |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101110 |