CN210998139U - Floating grinding and polishing main shaft - Google Patents
Floating grinding and polishing main shaft Download PDFInfo
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- CN210998139U CN210998139U CN201921582805.6U CN201921582805U CN210998139U CN 210998139 U CN210998139 U CN 210998139U CN 201921582805 U CN201921582805 U CN 201921582805U CN 210998139 U CN210998139 U CN 210998139U
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- main shaft
- ring
- mounting seat
- floating
- dust cover
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Abstract
The utility model discloses a floating grinding and polishing main shaft, which comprises an outer cavity mounting seat, a main shaft, a joint bearing and a floating ring; the upper end surface and the lower end surface of the outer cavity mounting seat penetrate through to form a containing cavity, an air inlet is formed in the outer cavity mounting seat, and an air channel is formed in the outer cavity mounting seat; the joint bearing and the floating ring are arranged in the containing cavity at intervals up and down and are sleeved outside the main shaft; the upper end and the lower end of the outer cavity mounting seat are respectively provided with an upper dust cover and a lower dust cover, and the upper dust cover and the lower dust cover are sleeved outside the main shaft and seal the openings at the upper end and the lower end of the accommodating cavity. Through being provided with the floating ring to cooperation joint bearing, in the course of the work, the main shaft can be stabilized to the floating ring, avoids the main shaft to rock, has promoted the stability of main shaft greatly, thereby effectively improves work efficiency and processingquality, effectively protects the cutter simultaneously, and extension life realizes automatic batch processing and practices thrift the manual work, effective reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of the polishing equipment technique and specifically relates to indicate a unsteady burnishing and polishing main shaft.
Background
Grinding and polishing are common processing methods in the field of mechanical production and manufacturing. Grinding is also called big grinding, which is to grind and level the rough surface of the workpiece roughly, and polishing is to modify and process the surface of the workpiece by using a flexible polishing tool and abrasive particles or other polishing media, belonging to fine grinding.
The existing grinding and polishing equipment adopts a main shaft which is generally a floating main shaft, however, the floating main shaft in the prior art is easy to shake and has poor stability, so that the working efficiency is low, the grinding and polishing quality is influenced, and the service life of a cutter is shortened. Therefore, there is a need for an improvement in the current spindle.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a floating polishing spindle, which can effectively solve the problem that the existing floating spindle is easy to shake and has poor stability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a floating grinding and polishing main shaft comprises an outer cavity mounting seat, a main shaft, a joint bearing and a floating ring; the upper end surface and the lower end surface of the outer cavity mounting seat penetrate through to form a containing cavity, an air inlet is formed in the outer cavity mounting seat, and an air channel is formed in the outer cavity mounting seat; the main shaft is arranged in the cavity, and the upper end and the lower end of the main shaft respectively extend out of the upper end and the lower end of the outer cavity mounting seat; the joint bearing and the floating ring are arranged in the containing cavity at intervals up and down and sleeved outside the main shaft, an air guide groove is formed between the floating ring and the inner wall of the containing cavity, and the air channel is communicated with the air inlet and is mixed with the air guide groove; and the upper end and the lower end of the outer cavity mounting seat are respectively provided with an upper dust cover and a lower dust cover, and the upper dust cover and the lower dust cover are sleeved outside the main shaft and seal the openings at the upper end and the lower end of the accommodating cavity.
Preferably, the main shaft is a water circulation cooling main shaft, and the top end of the main shaft is provided with a water pipe connector.
Preferably, the spherical plain bearing is located at an upper portion of the outer chamber mount and the floating ring is located at a lower portion of the outer chamber mount.
Preferably, the floating ring comprises a ring body and a plurality of piston rods; the ring body is hermetically arranged on the inner wall of the containing cavity and forms the air guide groove with the inner wall of the containing cavity in a surrounding way, a plurality of cylinder bodies are formed along the circle center of the ring body in an equiangular distribution way, and each cylinder body is communicated with the air guide groove; the plurality of piston rods are respectively movably arranged in the corresponding cylinder body inside and outside, and the outer end of each piston rod extends out of the cylinder body and is abutted against the outer side surface of the main shaft; the outer diameter of the inner end of each piston rod is larger than that of the outer end of each piston rod, the inner end of each piston rod is provided with a first sealing ring, and the first sealing ring is abutted against the inner wall surface of the cylinder body.
Preferably, a plurality of seal grooves are formed in the inner end of each piston rod, and the first seal ring is embedded in each seal groove.
Preferably, a second sealing ring is arranged on the contact surface of the outer side wall of the ring body and the inner wall of the bottom of the outer cavity mounting seat, and a third sealing ring is arranged on the contact surface of the top of the ring body and the bottom of the outer cavity mounting seat.
Preferably, a mounting sleeve for fixing the main shaft is arranged between the upper end and the lower end of the inner wall of the knuckle bearing and the outer side surface of the main shaft respectively.
Preferably, the outer cavity mounting seat is provided with a pressing ring, and the pressing ring presses the joint bearing.
Preferably, the inner wall of the top of the upper dust cover is connected with the outer wall of the upper end of the main shaft, and the bottom of the upper dust cover is attached to the pressing ring and is fixedly pressed through a top pressing cover.
Preferably, the lower end of the outer cavity mounting seat is provided with a bottom pressing ring, the inner side of the top of the lower dust cover is provided with a protruding ring which is buckled with the outer ring of the bottom pressing ring, and the inner side of the bottom of the lower dust cover is connected with the outer wall of the lower end of the main shaft.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
through being provided with the floating ring to cooperation joint bearing, in the course of the work, the main shaft can be stabilized to the floating ring, avoids the main shaft to rock, has promoted the stability of main shaft greatly, thereby effectively improves work efficiency and processingquality, effectively protects the cutter simultaneously, and extension life realizes automatic batch processing and practices thrift the manual work, effective reduction in production cost.
To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
drawings
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is an axial cross-sectional view of a preferred embodiment of the invention;
FIG. 3 is a schematic radial cross-sectional view of a preferred embodiment of the present invention
FIG. 4 is an enlarged schematic view at position A in FIG. 2;
FIG. 5 is an enlarged schematic view at position B in FIG. 2;
fig. 6 is another partial cross-sectional view of the preferred embodiment of the present invention.
The attached drawings indicate the following:
10. outer cavity mounting base 11 and accommodating cavity
12. Gas inlet 13, gas channel
14. Air guide groove 15 and press ring
16. Top gland 17, bottom gland ring
20. Main shaft 21 and water pipe joint
30. Spherical plain bearing 40, floating ring
41. Ring body 42, piston rod
43. First seal ring 44 and second seal ring
45. Third seal ring 401 and cylinder body
402. Seal groove 50 and upper dust cover
60. Lower dust cover 61, projecting ring
70. Mounting sleeve
Detailed Description
Referring to fig. 1 to 6, a specific structure of a preferred embodiment of the present invention is shown, which includes an outer cavity mounting base 10, a main shaft 20, a knuckle bearing 30 and a floating ring 40.
The upper end surface and the lower end surface of the outer cavity mounting base 10 are penetrated to form a cavity 11, an air inlet 12 is arranged on the outer cavity mounting base 10, an air passage 13 is arranged in the outer cavity mounting base 10, and in the embodiment, the air inlet 12 is positioned at the top of the outer cavity mounting base 10.
The main shaft 20 is arranged in the cavity 11, and the upper end and the lower end of the main shaft 20 respectively extend out of the upper end and the lower end of the outer cavity mounting seat 10; in this embodiment, the main shaft 20 is a water circulation cooling main shaft, and the top end of the main shaft is provided with a water pipe connector 21 for connecting an external water pipe.
The knuckle bearing 30 and the floating ring 40 are arranged in the cavity 11 at an interval from top to bottom and sleeved outside the main shaft 20, an air guide groove 14 is formed between the floating ring 40 and the inner wall of the cavity 11, and the air channel 13 is communicated with the air inlet 12 and mixed with the air guide groove 14. In the present embodiment, the joint bearing 30 is located at the upper portion of the outer cavity mount 10, and the floating ring 40 is located at the lower portion of the outer cavity mount 10, which is not limited.
And the upper and lower ends of the outer cavity mounting base 10 are respectively provided with an upper dust cover 50 and a lower dust cover 60, and the upper dust cover 50 and the lower dust cover 60 are both sleeved outside the main shaft 20 and cover the openings at the upper and lower ends of the cavity 11.
And a mounting sleeve 70 for fixing the main shaft 20 is arranged between the upper end and the lower end of the inner wall of the knuckle bearing 30 and the outer side surface of the main shaft 20, and a pressing ring 15 is arranged on the outer cavity mounting seat 10 and tightly presses the knuckle bearing 30 by the pressing ring 15.
Specifically, the floating ring 40 includes a ring body 41 and a plurality of piston rods 42; the ring body 41 is hermetically installed on the inner wall of the cavity 11 and forms the air guide groove 14 with the inner wall of the cavity 11, a plurality of cylinder bodies 401 are formed along the circle center of the ring body 41 in an equiangular distribution, and each cylinder body 401 is communicated with the air guide groove 14; the plurality of piston rods 42 are respectively movably arranged in the corresponding cylinder body 401 inside and outside, and the outer end of each piston rod 42 extends out of the cylinder body 401 and abuts against the outer side surface of the main shaft 20; the inner end outer diameter of each piston rod 42 is larger than the outer end outer diameter, the inner end of each piston rod 42 is provided with a first sealing ring 43, and the first sealing ring 43 is abutted against the inner wall surface of the cylinder 401. And a plurality of sealing grooves 402 are formed in the inner end of each piston rod 42, and the first sealing ring 43 is embedded in each sealing groove 402. In addition, a second sealing ring 44 is arranged on the contact surface of the outer side wall of the ring body 41 and the bottom inner wall of the outer cavity mounting base 10, and a third sealing ring 45 is arranged on the contact surface of the top of the ring body 41 and the bottom of the outer cavity mounting base 10, so that air tightness in sealing installation is realized.
The top inner wall of the upper dust cover 50 is connected with the upper end outer wall of the main shaft 20, and the bottom of the upper dust cover 50 is attached to the pressing ring 15 and is pressed and fixed through a top pressing cover 16. The lower end of the outer cavity mounting base 10 is provided with a bottom pressing ring 17, the inner side of the top of the lower dust cover 60 is provided with a protruding ring 61 which is buckled with the outer ring of the bottom pressing ring 17, and the inner side of the bottom of the lower dust cover 60 is connected with the outer wall of the lower end of the main shaft 20.
Detailed description the working principle of the present embodiment is as follows:
in the working process, high-pressure gas is input through the gas inlet 12, enters the gas guide groove 14 through the gas channel 13 and then enters each cylinder body 401, so that each piston rod 42 extends out and abuts against the outer wall surface of the main shaft 20 at the same time, the main shaft 20 is prevented from shaking, the vertical floating is ensured, and the vertical floating is more stable and reliable.
The utility model discloses a design key is: through being provided with the floating ring to cooperation joint bearing, in the course of the work, the main shaft can be stabilized to the floating ring, avoids the main shaft to rock, has promoted the stability of main shaft greatly, thereby effectively improves work efficiency and processingquality, effectively protects the cutter simultaneously, and extension life realizes automatic batch processing and practices thrift the manual work, effective reduction in production cost.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a unsteady burnishing and polishing main shaft which characterized in that: comprises an outer cavity mounting seat, a main shaft, a joint bearing and a floating ring; the upper end surface and the lower end surface of the outer cavity mounting seat penetrate through to form a containing cavity, an air inlet is formed in the outer cavity mounting seat, and an air channel is formed in the outer cavity mounting seat; the main shaft is arranged in the cavity, and the upper end and the lower end of the main shaft respectively extend out of the upper end and the lower end of the outer cavity mounting seat; the joint bearing and the floating ring are arranged in the containing cavity at intervals up and down and sleeved outside the main shaft, an air guide groove is formed between the floating ring and the inner wall of the containing cavity, and the air channel is communicated with the air inlet and is mixed with the air guide groove; and the upper end and the lower end of the outer cavity mounting seat are respectively provided with an upper dust cover and a lower dust cover, and the upper dust cover and the lower dust cover are sleeved outside the main shaft and seal the openings at the upper end and the lower end of the accommodating cavity.
2. The floating abrasive polishing spindle of claim 1, wherein: the main shaft is a water circulation cooling main shaft, and a water pipe connector is arranged at the top end of the main shaft.
3. The floating abrasive polishing spindle of claim 1, wherein: the joint bearing is positioned at the upper part of the outer cavity mounting seat, and the floating ring is positioned at the lower part of the outer cavity mounting seat.
4. The floating abrasive polishing spindle of claim 1, wherein: the floating ring comprises a ring body and a plurality of piston rods; the ring body is hermetically arranged on the inner wall of the containing cavity and forms the air guide groove with the inner wall of the containing cavity in a surrounding way, a plurality of cylinder bodies are formed along the circle center of the ring body in an equiangular distribution way, and each cylinder body is communicated with the air guide groove; the plurality of piston rods are respectively movably arranged in the corresponding cylinder body inside and outside, and the outer end of each piston rod extends out of the cylinder body and is abutted against the outer side surface of the main shaft; the outer diameter of the inner end of each piston rod is larger than that of the outer end of each piston rod, the inner end of each piston rod is provided with a first sealing ring, and the first sealing ring is abutted against the inner wall surface of the cylinder body.
5. The floating abrasive polishing spindle of claim 4, wherein: a plurality of seal grooves are formed in the inner end of each piston rod, and the first seal ring is embedded in each seal groove.
6. The floating abrasive polishing spindle of claim 4, wherein: and a second sealing ring is arranged on the contact surface of the outer side wall of the ring body and the inner wall of the bottom of the outer cavity mounting seat, and a third sealing ring is arranged on the contact surface of the top of the ring body and the bottom of the outer cavity mounting seat.
7. The floating abrasive polishing spindle of claim 1, wherein: and mounting sleeves for fixing the main shaft are arranged between the upper end and the lower end of the inner wall of the knuckle bearing and the outer side surface of the main shaft respectively.
8. The floating abrasive polishing spindle of claim 1, wherein: and the outer cavity mounting seat is provided with a pressing ring, and the pressing ring presses the joint bearing.
9. The floating abrasive polishing spindle of claim 8, wherein: the inner wall of the top of the upper dust cover is connected with the outer wall of the upper end of the main shaft, and the bottom of the upper dust cover is attached to the pressing ring and is fixedly pressed through a top pressing cover.
10. The floating abrasive polishing spindle of claim 1, wherein: the lower end of the outer cavity mounting seat is provided with a bottom pressing ring, the inner side of the top of the lower dust cover is provided with a protruding ring which is buckled with the outer ring of the bottom pressing ring, and the inner side of the bottom of the lower dust cover is connected with the outer wall of the lower end of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921582805.6U CN210998139U (en) | 2019-09-23 | 2019-09-23 | Floating grinding and polishing main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921582805.6U CN210998139U (en) | 2019-09-23 | 2019-09-23 | Floating grinding and polishing main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210998139U true CN210998139U (en) | 2020-07-14 |
Family
ID=71501452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921582805.6U Active CN210998139U (en) | 2019-09-23 | 2019-09-23 | Floating grinding and polishing main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210998139U (en) |
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2019
- 2019-09-23 CN CN201921582805.6U patent/CN210998139U/en active Active
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