CN220548107U - Pneumatic frock of precision finishing vacuum - Google Patents
Pneumatic frock of precision finishing vacuum Download PDFInfo
- Publication number
- CN220548107U CN220548107U CN202322276617.3U CN202322276617U CN220548107U CN 220548107 U CN220548107 U CN 220548107U CN 202322276617 U CN202322276617 U CN 202322276617U CN 220548107 U CN220548107 U CN 220548107U
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- Prior art keywords
- cavity
- stator
- elastic gasket
- rotor
- precision machining
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- 238000003754 machining Methods 0.000 claims abstract description 23
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model relates to a precision machining vacuum pneumatic tool, which comprises a stator, wherein the stator is provided with a first cavity and a vent, and the first cavity is communicated with the vent; the rotor is provided with a second cavity, coaxially and slidably embedded in the first cavity, and the first cavity is communicated with the second cavity; the elastic gasket is in an annular sheet structure, is coaxially arranged in the first cavity, is tightly attached to and fixedly connected with the rotor and the stator, is covered on a gap between the rotor and the stator, and is communicated with the second cavity; according to the tool, through the air pressure introduced into the air passage, the rotor moves relative to the stator under the action of the air pressure, different air pressures enable the rotor to apply different grinding forces to the grinding part, so that the force of the grinding part can be better controlled, and the grinding yield and accuracy are improved.
Description
Technical Field
The utility model relates to the technical field of grinding, in particular to a precision machining vacuum pneumatic tool.
Background
The grinding device is a machine for polishing and deburring products to improve the precision and the smoothness of product pieces, in the field of precision machining, the workpiece is often required to be ground, the grinding tool and the workpiece move relatively under certain pressure and finish the machining surface, the traditional grinding tool is simple in structure, the grinding tool is generally held by the palm of an operator, the workpiece is ground with different forces by changing the holding force, the grinding force is controlled by stretching and contracting the grinding tool through a cylinder, and the defects that the grinding force is not easy to control, single and the like are caused, so that the adverse phenomena such as missed grinding or overgrinding of the workpiece are easily caused, and the grinding yield of the workpiece is affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to solve the problems that the grinding force of the grinding device is not easy to control, the force is single and the like in the prior art, and further provide the precision machining vacuum pneumatic tool, so that the grinding force can be better controlled, different grinding forces can be provided, and the grinding yield and precision are improved.
In order to solve the technical problems, the utility model provides a precision machining vacuum pneumatic tool, which comprises a stator, wherein the stator is provided with a first cavity and a vent, and the first cavity is communicated with the vent.
The rotor is provided with a second cavity, the rotor is coaxially and slidably embedded in the first cavity, and the first cavity is communicated with the second cavity.
The elastic gasket is arranged into an annular sheet structure, the elastic gasket is coaxially arranged in the first cavity, the elastic gasket is tightly and fixedly connected with the rotor and the stator, the elastic gasket covers and presses the gap between the rotor and the stator, and the inner side of the elastic gasket is communicated with the second cavity.
In one embodiment of the utility model, the motor further comprises a rotating main shaft coaxially connected with the stator, wherein an air passage is arranged in the rotating main shaft, and the air passage is communicated with the air port.
In one embodiment of the utility model, the stator comprises a stator body and a stator cover which are coaxially connected, the stator body radially contracts to form a first avoiding portion, the elastic gasket is tightly attached to and fixedly connected with the first avoiding portion, and the air vent is arranged on the stator cover.
In one embodiment of the utility model, a plurality of limiting grooves are formed in the inner side of the stator body, a plurality of limiting ribs are arranged on the rotor corresponding to the limiting grooves, and the limiting ribs are inserted into the limiting grooves.
In one embodiment of the utility model, the limit groove extends in the axial direction of the stator.
In one embodiment of the present utility model, the first fixing ring is disposed in the first cavity, and the first fixing ring is disposed on a side of the elastic pad opposite to the first avoiding portion, and the second fixing ring compresses the elastic pad to make the elastic pad abut against the first avoiding portion.
In one embodiment of the present utility model, the first fixing ring is provided with a clamping portion in a circumferential direction, the first avoiding portion is provided with a clamping groove corresponding to the clamping portion, and the clamping portion is inserted into the clamping groove.
In one embodiment of the utility model, the stator cover is provided with an annular avoidance groove, the annular avoidance groove is arranged opposite to the second fixed ring, and the annular avoidance groove is matched with the second fixed ring in a profiling way.
In one embodiment of the utility model, the device further comprises a second fixing ring fixedly connected with the rotor, wherein the second fixing ring is arranged on one side of the elastic gasket relative to the rotor, and the second fixing ring presses the elastic gasket tightly against the rotor.
In one embodiment of the present utility model, the mover is further provided with an integrated first mounting portion, the first mounting portion is disposed outside the first cavity, and the diameter of the first mounting portion is larger than the diameter of the first cavity
In one embodiment of the utility model, the mounting portion is provided with a plurality of mounting through holes distributed in a ring shape.
In an embodiment of the utility model, the first fixing ring is uniformly distributed with a plurality of first through holes in a circumferential direction, and the first avoiding part is provided with a plurality of blind holes corresponding to the plurality of first through holes.
In one embodiment of the utility model, the stator cover is annularly provided with a plurality of second through holes along the edge part thereof, and the stator body is provided with a plurality of blind holes corresponding to the second through holes.
In an embodiment of the utility model, the second fixing ring is uniformly distributed with a plurality of third through holes in a circumferential direction, and the mover is provided with a plurality of blind holes corresponding to the plurality of third through holes.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the precise machining vacuum pneumatic tool is arranged on a driving mechanism, when the precise machining vacuum pneumatic tool is used, a grinding part is connected to a rotor for grinding, an elastic gasket is of a high-strength elastically-extensible annular sheet structure, a first cavity and a second cavity are in a vacuum state initially, after air pressure is introduced into an air passage, the air pressure in the second cavity rises, the rotor starts to move downwards relative to a stator, the elastic gasket is simultaneously stretched, the grinding force of the grinding part starts to increase, when the air pressure introduced into the air passage is reduced, the air pressure in the second cavity falls, the elastic gasket simultaneously contracts, the rotor starts to move upwards relative to the stator, the grinding force of the grinding part starts to decrease, the elastic gasket not only drives the rotor to reset, but also seals a gap between the rotor and the stator, and the sealing performance of the tool is ensured; different air pressures are introduced into the air passage, and the tool provides different grinding forces for the grinding part, so that the grinding precision of the tool is improved.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
Fig. 1 is a schematic structural view of a cross-sectional view of a precision machining vacuum pneumatic tool in a preferred embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of an exploded view of the precision machining vacuum pneumatic tool shown in fig. 1.
Fig. 3 is a schematic structural view of an elastic gasket of the precision machining vacuum pneumatic tool shown in fig. 1.
Description of the specification reference numerals: 1. a second cavity; 2. a mover; 3. a mounting part; 4. a stator body; 5. a stator cover; 6. an elastic pad; 7. an annular avoidance groove; 8. rotating the main shaft; 10. an airway; 11. a second fixing ring; 12. a first fixing ring; 13. a clamping part; 14. a clamping groove; 15. limiting convex ribs; 16. a limit groove; 17. mounting through holes; 18. a first cavity; 19. a blind hole; 20. a third through hole; 21. a first through hole; 22. a second through hole; 23. a first avoidance unit; 24. a blind hole; 25. a blind hole; 26. a vent; 27. a fourth through hole; 28. and (5) a blind hole.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Examples
In one embodiment of the present utility model, referring to fig. 1, a precision machining vacuum pneumatic tool of the present utility model includes a stator, which is provided with a first cavity 18 and a vent 26, wherein the stator is provided with a plurality of through holes around the vent 26, and the first cavity 18 is communicated with the vent 26.
The rotor 2 is provided with a second cavity 1, the rotor 2 is coaxially and slidably embedded in the first cavity 18, and the first cavity 18 is communicated with the second cavity 1.
An elastic pad 6 provided in a ring-shaped sheet structure, having high strength and being elastically extensible; the elastic gaskets 6 are coaxially arranged in the first cavity 18, the elastic gaskets 6 are tightly attached to and fixedly connected with the rotor 2 and the stator, and when the rotor 2 moves relative to the stator, the elastic gaskets 6 are stretched; the elastic gasket 6 is covered and pressed on a gap between the rotor 2 and the stator, and the purpose of the elastic gasket is to improve the air seal of the tool; and the inner side of the elastic pad 6 is communicated with the second cavity 1.
In one embodiment of the present utility model, referring to fig. 1, the rotary spindle 8 is coaxially connected with the stator, and the rotary spindle 8 is provided with a plurality of through holes for fixed connection; the inside of the rotary main shaft 8 is provided with an air passage 10, the air passage 10 is communicated with the air port 26, and gases with different air pressures enter the first cavity 18 and the second cavity 1 through the air passage 10 and the air port 26.
In one embodiment of the present utility model, referring to fig. 1, the stator includes a stator body 4 and a stator cover 5 that are coaxially connected, the stator body 4 radially contracts to form a first avoidance portion 23, and the elastic gasket 6 is tightly attached to and fixedly connected with the first avoidance portion 23, so as to ensure the air tightness of the first cavity 18 and the second cavity 1, and meanwhile, when the elastic gasket 6 is stretched, the elastic gasket 6 can still be fixedly connected with the first avoidance portion 23; the vent 26 is provided on the stator cover 5.
In an embodiment of the present utility model, referring to fig. 2, a plurality of limiting grooves 16 are provided on the inner side of the stator body 4, the plurality of limiting grooves 16 are uniformly distributed, the mover 2 is provided with a plurality of limiting ribs 15 corresponding to the limiting grooves 16, and the limiting ribs 15 are inserted into the limiting grooves 16, so as to prevent the stator body and the mover 2 from rotating relatively.
In one embodiment of the present utility model, referring to fig. 2, the limit groove 16 extends along the axial direction of the stator, which facilitates the installation and removal of the stator and the mover 2.
In one embodiment of the present utility model, as shown in fig. 1, the first fixing ring 12 is further disposed in the first cavity 18, specifically, the first fixing ring 12 is disposed on the first avoidance portion 23, and the first fixing ring 12 is disposed on a side of the elastic pad 6 opposite to the first avoidance portion 23, and the first fixing ring 12 presses the elastic pad 6 tightly against the first avoidance portion 23.
In one embodiment of the present utility model, referring to fig. 1, a clamping portion 13 is circumferentially disposed at the bottom of the first fixing ring 12, and a clamping groove 14 is disposed at the first avoiding portion 23 corresponding to the clamping portion 13, and the clamping portion 13 is inserted into the clamping groove 14, so as to improve the stability of the first fixing ring 12.
In one embodiment of the present utility model, referring to fig. 1, the device further comprises a second fixing ring 11 fixedly connected to the mover 2, the second fixing ring 11 is disposed in the first cavity 18, the second fixing ring 11 is disposed at one side of the elastic pad 6 opposite to the mover 2, the second fixing ring 11 compresses the elastic pad 6 to be tightly attached to the mover 2, and the second fixing ring 11 moves up and down along with the mover 2.
In one embodiment of the present utility model, referring to fig. 1, an annular avoidance groove 7 is formed at the bottom of the stator cover 5, the annular avoidance groove 7 is opposite to the second fixed ring 11, the annular avoidance groove 7 is in profile matching with the second fixed ring 11, and after the mover 2 rises to a certain height, the top of the second fixed ring 11 is inserted into the annular avoidance groove 7.
In one embodiment of the present utility model, referring to fig. 1, the mover 2 is further provided with an integrated first mounting portion 3, the first mounting portion 3 is disposed outside the first cavity 18, a diameter of the first mounting portion 3 is larger than a diameter of the first cavity 18, the mounting portion 3 is used for mounting the grinding part, and the mounting portion 3 is configured in a circular structure.
In one embodiment of the present utility model, referring to fig. 1, the mounting portion 3 is provided with a plurality of mounting through holes 17 distributed in a ring shape, and a bolt shaft is connected to the grinding member through the mounting through holes 17.
In one embodiment of the present utility model, referring to fig. 1 and 3, the first fixing ring 12 is uniformly distributed with a plurality of first through holes 21 in a circumferential direction, the first avoiding portion 23 is provided with a plurality of blind holes 25 corresponding to the plurality of first through holes 21, and the bolt shaft penetrates the first through holes 21 and the fourth through holes 27 of the elastic gasket 6 to insert into the blind holes 25 to fixedly connect the first fixing ring 12, the stator body 4 and the elastic gasket 6.
In one embodiment of the present utility model, referring to fig. 1 and 3, the stator cover 5 is annularly provided with a plurality of second through holes 22 along the edge portion thereof, the stator body 4 is provided with a plurality of blind holes 24 corresponding to the second through holes 22, and the bolt rod is inserted into the blind holes 24 through the second through holes 22 to fixedly connect the stator cover 5 and the stator body 4.
In one embodiment of the present utility model, referring to fig. 1 and 3, the second fixing ring 11 is uniformly distributed with a plurality of third through holes 20 in a circumferential direction, the mover 2 is provided with a plurality of blind holes 28 corresponding to the plurality of third through holes 20, the elastic spacer 6 is provided with a plurality of fourth through holes 27 corresponding to the first through holes 21 and the third through holes 20, and the bolt rod is inserted into the blind holes 28 through the third through holes 20 and the fourth through holes 27 to fixedly connect the mover 2, the elastic spacer 6 and the second fixing ring 11.
The working principle of the precision machining vacuum pneumatic tool provided by the utility model is as follows:
the tool is arranged on a driving mechanism, when the tool is used, a grinding part is fixedly connected to the mounting part 3 of the rotor 2 and used for grinding, the grinding part is driven to move and rotate by the driving mechanism and contacts and grinds a workpiece, the elastic gasket 6 is arranged into a high-strength elastically extensible annular sheet structure, the first cavity 18 and the second cavity 1 are initially in a vacuum state, when the grinding force of the grinding part needs to be adjusted, different air pressures are introduced into the air channel 10, when the air pressure in the second cavity 1 is increased, the rotor 2 starts to move downwards relative to the stator, the elastic gasket 6 is stretched, the grinding force of the grinding part starts to increase, the air pressure in the second cavity 1 is reduced, the elastic gasket 6 is contracted, the rotor 2 starts to move upwards relative to the stator, the grinding force of the grinding part starts to reduce, the elastic gasket 6 not only drives the rotor 2 to reset, but also seals a gap between the rotor 2 and the stator, and the tightness of the tool is ensured; different air pressures are introduced into the air passage 10, so that the tool provides different grinding forces for the grinding part, and the grinding precision of the tool is improved
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A vacuum pneumatic tool for precision machining is characterized by comprising,
a stator provided with a first cavity and a vent, wherein the first cavity is communicated with the vent;
the rotor is provided with a second cavity, is coaxially and slidably embedded in the first cavity and is communicated with the second cavity;
the elastic gasket is arranged into an annular sheet structure, the elastic gasket is coaxially arranged in the first cavity, the elastic gasket is tightly and fixedly connected with the rotor and the stator, the elastic gasket covers and presses the gap between the rotor and the stator, and the inner side of the elastic gasket is communicated with the second cavity.
2. The precision machining vacuum pneumatic tool according to claim 1, further comprising a rotating main shaft coaxially connected with the stator, wherein an air passage is formed in the rotating main shaft, and the air passage is communicated with the air port.
3. The precision machining vacuum pneumatic tool of claim 1, wherein the stator comprises a stator body and a stator cover which are coaxially connected, the stator body radially contracts to form a first avoiding portion, the elastic gasket is tightly attached to and fixedly connected with the first avoiding portion, and the air port is formed in the stator cover.
4. The precision machining vacuum pneumatic tool according to claim 3, wherein a plurality of limiting grooves are formed in the inner side of the stator body, a plurality of limiting ribs are arranged on the rotor corresponding to the limiting grooves, and the limiting ribs are inserted into the limiting grooves.
5. The precision machining vacuum pneumatic tooling of claim 4, wherein the limit groove extends axially of the stator.
6. The precision machining vacuum pneumatic tool of claim 3, further comprising a first fixing ring arranged in the first cavity, wherein the first fixing ring is arranged on one side of the elastic gasket opposite to the first avoiding portion, and the first fixing ring presses the elastic gasket tightly against the first avoiding portion.
7. The precision machining vacuum pneumatic tool according to claim 6, wherein the first fixing ring is provided with a clamping portion in a circumferential direction, the first avoiding portion is provided with a clamping groove corresponding to the clamping portion, and the clamping portion is inserted into the clamping groove.
8. The precision machining vacuum pneumatic tool according to claim 1, further comprising a second fixing ring fixedly connected with the mover, wherein the second fixing ring is arranged on one side of the elastic gasket opposite to the mover, and the second fixing ring presses the elastic gasket tightly against the mover.
9. The precision machining vacuum pneumatic tool of claim 8, wherein the stator cover is provided with an annular avoidance groove, the annular avoidance groove is arranged opposite to the second fixed ring, and the annular avoidance groove is in profiling matching with the second fixed ring.
10. The precision machining vacuum pneumatic tool according to claim 1, wherein the mover is further provided with an integrated first mounting portion, the first mounting portion is disposed outside the first cavity, and the diameter of the first mounting portion is larger than that of the first cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322276617.3U CN220548107U (en) | 2023-08-23 | 2023-08-23 | Pneumatic frock of precision finishing vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322276617.3U CN220548107U (en) | 2023-08-23 | 2023-08-23 | Pneumatic frock of precision finishing vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220548107U true CN220548107U (en) | 2024-03-01 |
Family
ID=90006988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322276617.3U Active CN220548107U (en) | 2023-08-23 | 2023-08-23 | Pneumatic frock of precision finishing vacuum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220548107U (en) |
-
2023
- 2023-08-23 CN CN202322276617.3U patent/CN220548107U/en active Active
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