CN212551755U - High-speed air-float main shaft - Google Patents
High-speed air-float main shaft Download PDFInfo
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- CN212551755U CN212551755U CN201920725573.9U CN201920725573U CN212551755U CN 212551755 U CN212551755 U CN 212551755U CN 201920725573 U CN201920725573 U CN 201920725573U CN 212551755 U CN212551755 U CN 212551755U
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- 238000000034 method Methods 0.000 claims abstract 2
- 238000004804 winding Methods 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000007667 floating Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
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Abstract
The utility model aims to provide a can adorn on numerical control lathe CNC's longmen or horizontal processing center, does not use its main shaft pivoted power, can change at will in the difference press from both sides dress mode, can be applicable to the high-speed air supporting main shaft of various different processing equipment anchor clamps. The method comprises the following steps: the central shaft that cone cylinder, air bearing suit, characterized by: the upper part is a cone cylinder, the lower part is a central shaft sleeved with an air bearing, the top end of the upper cone is provided with a connecting groove matched with a CNC (computer numerical control) machining center in combination, the lower end of the extending end of the lower central shaft is also provided with a clamping groove for assembling various clamps, and the upper part and the lower part are combined into a whole by positive threads. Obviously, when the air compressor starts to work, air film support is formed between the upper disc, the lower disc and the vertical side surface of the central shaft 12, and the rotating speed can reach 10 ten thousand rpm under the action of the driving impeller. Thereby achieving the design purpose. Has the advantages that: simple structure, convenient use, strong adaptability, energy conservation and high efficiency.
Description
Technical Field
The utility model relates to a dedicated anchor clamps main shaft of numerical control lathe CNC.
Background
In the air bearing technology, a certain amount of air film can be kept between two solid contact surfaces, and when the two surfaces slide relatively, the non-contact friction force is zero. The sliding bearing using air as lubricant features that during normal operation, the shaft and bearing surface are completely separated by air film, which is the gas capable of flowing continuously and directionally to support shaft and external load by means of pressure change in the air film, and the continuously moving gas is obtained by the action of air compressor. Because the air has less viscosity than oil, high temperature resistance and no corrosion, the air bearing can be used in high-speed machines, instruments and radioactive devices. The invention discloses a numerical control machine tool CNC (computerized numerical control) machine tool, which is characterized in that the spindle speed of the CNC machine tool CNC in the current society can only reach twenty thousand revolutions per minute at most, and the CNC machine tool CNC is not suitable for ground processing operations such as drilling and milling of high-precision micro props.
Disclosure of Invention
The utility model aims to provide a can adorn on numerical control lathe CNC's longmen or horizontal machining center, and do not use its main shaft pivoted power, can change at will and press from both sides the dress mode in the difference, can be applicable to the high-speed air supporting main shaft of various different processing equipment anchor clamps.
The technical scheme for solving the technical problem is as follows: the high-speed air-floating main shaft is generally divided into an upper part and a lower part, wherein the upper part is a cone cylinder, the lower part is a cylinder formed by sleeving a central shaft on an air-floating bearing, and the upper part and the lower part are combined into a whole by positive threads. The device comprises a cylinder, a cone chuck, a cylinder, a convex air plug, a connecting groove, a connecting rod; the air bearing is sleeved in a cylinder formed on the central shaft, the air bearing is sleeved with the cylinder, the middle upper part of the side surface is provided with an air inlet, the upper part is provided with a positive thread, the outer diameter of the positive thread is the same as the inner diameter of a cone cylinder at the upper part, a winding drum stator is in interference fit in the positive thread, the vertical air holes with equal distances and a certain number are drilled on the same circumference of the junction of the upper disc and the lower disc of the winding drum stator and the edge of the winding drum, and the transverse air holes with equal distances and a certain number are also drilled on the side walls at two sides of the winding drum; the central shaft is a solid shaft, the diameter of the upper part of the central shaft is equal to the inner diameter of the winding drum stator to achieve active matching, the lower part of the central shaft is provided with an air blocking counterweight disc with the diameter equal to the diameter of the air-floating bearing outer sleeve, the thinner lower end of the central shaft extends downwards for a certain distance, a lower clamping groove is arranged at the extending end of the central shaft, the central shaft is arranged in the winding drum stator from the lower direction of the winding drum stator, the driving impeller provided with the curve-shaped inclined blades is sleeved on the corresponding thin shaft head at the top end of the central shaft through the central hole of the driving impeller, and the driving impeller is fixed through screws, so that the lower part. The upper part and the lower part are combined through the positive threads to form the utility model.
A high-speed air spindle includes: cone cylinder, air supporting bearing, center pin, characterized by: the upper part is a cone cylinder, the lower part is a central shaft sleeved with an air bearing, the top end of the upper cone is provided with a connecting groove matched with a CNC machining center when the upper cone is combined, the lower end of the extending end of the lower central shaft is also provided with a clamping groove capable of being assembled with various clamps, and the upper part and the lower part are combined into a whole by positive threads.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention when inflated.
In the figure 1, a cone cylinder; 2, connecting the groove; 3, a convex air plug; 4, inclined air holes; 5, upper air inlet holes; 6, air outlet holes; 7, positive thread; 8, coating an air bearing; 9, a lower air inlet hole; 10, a drum stator; 11, vertical air holes; 12, a central axis; 13, a gas-blocking counterweight plate; 14, a lower clamping groove; and 15, driving the impeller.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
In the figure 1, a cone cylinder 1 is a combination body with a cone at the upper part and a cylinder at the lower part, a notch of the combination body is downward, a connecting groove 2 is arranged at the top end of the combination body, a convex air plug 3 is in interference fit with the upper part in the cone cylinder 1, three inclined air holes 4 are drilled downwards on the combination body according to regular triangle branches, an upper air inlet 5 and an air outlet 6 are respectively positioned at the upper part and the lower part of a convex air plug disc, the air outlets are required to be arranged into more than two, and a regular screw 7 is arranged at the inner lower side of the cone cylinder. The air bearing outer sleeve 8 is a cylinder, the outer diameter of the air bearing outer sleeve is the same as the inner diameter of the cone cylinder, the outer side of the upper part of the air bearing outer sleeve is also provided with a positive thread 7, and the middle upper part of the air bearing outer sleeve is provided with a lower air inlet 9; the winding drum stator 10 is in interference fit with the inner arm of the air bearing outer sleeve 8, vertical air holes 11 with the same size and a certain number of distances are respectively drilled at the junction of the upper and lower disks and the outer edge of the winding drum, and transverse air holes with the same size and a certain number of distances are also drilled on the inner wall of the winding drum stator; the central shaft 12 is a solid shaft, and is slidingly combined in the reel stator 10, the lower part of the central shaft is provided with an air blocking counterweight plate 13, the outer diameter of the disc is equal to the diameter of the air bearing outer sleeve, a thin extending end extends downwards, the lower end of the extending end is provided with a lower clamping groove 14, the central shaft 12 penetrates from the lower direction of the reel stator, a driving impeller 15 is fixed on the top end of the central shaft 12 by a screw and is positioned below the disc of the convex air plug 3, and the upper part and the lower part correspond to the inclined air hole 4 after being combined by the positive screw thread 7. Obviously, when the air valve on the lower air inlet hole is opened firstly, an air film is formed between the upper and lower disks and the vertical side surface of the central shaft 12 for supporting, and the input air can be respectively discharged from the air outlet hole 6 and the space between the air blocking counterweight disk 13 and the air bearing outer sleeve 8; when the air valve on the upper air inlet 5 is opened again, the impeller is driven to rotate in a certain direction, and the input air is discharged through the air outlet 6 after rotating for a circle; when the air valves are respectively enlarged, the central shaft 12 thereof quickly reaches 10 ten thousand revolutions per minute, and the shaft and the external force negative sign are supported by the pressure change in the air film. Has the advantages that: simple structure, convenient use and strong adaptability.
Claims (3)
1. A high-speed air bearing spindle comprising: cone cylinder, air supporting bearing, center pin, characterized by: the upper part is a cone cylinder, the lower part is a central shaft sleeved with an air bearing, the top end of the upper cone is provided with a connecting groove matched with a CNC machining center when the upper cone is combined, the lower end of the extending end of the lower central shaft is also provided with a clamping groove capable of being assembled with various clamps, and the upper part and the lower part are combined into a whole by positive threads.
2. The high-speed air-bearing spindle as claimed in claim 1, wherein: the cylinder is arranged above the cone cylinder on the upper portion and below the cone chuck, the connecting groove which can be matched with a CNC machining center in the combination process is arranged at the top end of the cone, the lower end of the cylinder is a concave cylinder with a downward opening, the convex air plug is in interference fit with the upper portion of the cylinder, three inclined air holes with certain inclination are drilled in the convex air plug disc according to a regular triangle position, the air inlet hole and the air outlet hole are respectively arranged above the convex air plug disc and below the convex air plug disc and are opened on the side face of the cylinder, and the positive thread is arranged below the inside of the cylinder.
3. The high-speed air-bearing spindle as claimed in claim 1, wherein: the air bearing is sleeved with a cylinder formed by a central shaft, the air bearing is sleeved with a cylinder, the middle upper part of the side surface is provided with an air inlet, the upper part is provided with a regular screw, the outer diameter of the regular screw is the same as the inner diameter of a cone cylinder at the upper part, a winding drum stator is in interference fit in the regular screw, vertical air holes with equal distances are drilled on the same circumference of the junction of an upper disc and a lower disc of the winding drum stator and the edge of the winding drum, and transverse air holes with equal distances and a certain quantity are also drilled on the side walls at two sides of the winding drum; the central shaft is a solid shaft, the diameter of the upper part of the central shaft is equal to the inner diameter of the winding drum stator so as to achieve active matching, the lower part of the central shaft is provided with an air blocking counterweight plate with the diameter equal to the diameter of the air bearing outer sleeve, the thinner lower end of the central shaft extends downwards for a certain distance, the extending end is provided with a lower clamping groove, the central shaft of the central shaft is arranged in the central shaft from the lower direction of the winding drum stator, and the driving impeller is fixed on the top end of the central shaft by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920725573.9U CN212551755U (en) | 2019-05-21 | 2019-05-21 | High-speed air-float main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920725573.9U CN212551755U (en) | 2019-05-21 | 2019-05-21 | High-speed air-float main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212551755U true CN212551755U (en) | 2021-02-19 |
Family
ID=74617926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920725573.9U Active CN212551755U (en) | 2019-05-21 | 2019-05-21 | High-speed air-float main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212551755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975018A (en) * | 2019-05-21 | 2020-11-24 | 陈立刚 | High-speed air-float main shaft |
-
2019
- 2019-05-21 CN CN201920725573.9U patent/CN212551755U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975018A (en) * | 2019-05-21 | 2020-11-24 | 陈立刚 | High-speed air-float main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240307 Address after: 473400 No. 156, east section of Gongye Road, Xingtang street, Tanghe County, Nanyang City, Henan Province Patentee after: Nanyang Xinao Intelligent Technology Co.,Ltd. Country or region after: China Address before: 473400 No.32 Chenzhuang, Wanzhuang village, Qiyi Township, Tanghe County, Nanyang City, Henan Province Patentee before: Chen Ligang Country or region before: China |
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| TR01 | Transfer of patent right |