CN113696046A - Pneumatic polishing machine - Google Patents
Pneumatic polishing machine Download PDFInfo
- Publication number
- CN113696046A CN113696046A CN202010440977.0A CN202010440977A CN113696046A CN 113696046 A CN113696046 A CN 113696046A CN 202010440977 A CN202010440977 A CN 202010440977A CN 113696046 A CN113696046 A CN 113696046A
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- CN
- China
- Prior art keywords
- vacuum
- cylinder body
- port
- notch
- air
- Prior art date
- 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.)
- Pending
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 37
- 238000003780 insertion Methods 0.000 claims abstract description 14
- 230000037431 insertion Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/026—Fluid driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
- B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a pneumatic polishing machine. The pneumatic polishing machine comprises a vacuum generator, an air cylinder body, a vacuum cover, a dust ring, a grinding wheel and a fixing bolt, wherein an extension head extends from the left side of the air cylinder body, an air inlet and an air outlet which are communicated with the air cylinder body are arranged on the extension head, the air outlet is arranged at the notch of the extension head, the notch is closer to the air cylinder body than the port of the air inlet, an insertion column which is inserted in the notch is upwards extended from the upper end of the vacuum generator, the insertion column is fixed through the fixing bolt, an air inlet port which is communicated with the air outlet is arranged on the insertion column, an exhaust port and a vacuum port which are communicated with the air inlet port are also arranged on the vacuum generator, the vacuum port of the vacuum generator is in a flat horn shape and is seamlessly connected with the vacuum cover and communicated with each other, the vacuum cover is fixed at the lower end of the air cylinder body, the dust ring is arranged at the lower end of the vacuum cover, and the gap between the dust ring and the grinding wheel is 1-2 mm, the grinding wheel is driven by the blade group in the cylinder body to rotate at high speed.
Description
Technical Field
The invention relates to a pneumatic polishing machine.
Background
The pneumatic polishing machine is one widely used polishing machine tool, and during operation, the pneumatic polishing machine has compressed air inlet in the cylinder to push the blade assembly inside the cylinder to make the blade assembly drive the grinding wheel to rotate at high speed, and the rotating grinding wheel contacts with workpiece for polishing.
Disclosure of Invention
In view of the defects of the existing pneumatic polishing machine, the invention aims to solve the technical problems that: the pneumatic polishing machine which better accords with the gas kinematics principle and ensures that dust is sucked more cleanly is provided; meanwhile, the pneumatic polishing machine has better dustproof effect.
In order to achieve the above object, according to one aspect of the present invention, the present invention is achieved by the following technical measures: a pneumatic grinder comprising:
the air cylinder comprises an air cylinder body, an extension head extends from one side of the air cylinder body, an air inlet communicated with the air cylinder body is formed in the outer side of the extension head, a notch is formed in the end face of the front side of the extension head, an air outlet communicated with the air cylinder body is formed in the notch, and the position of the notch is closer to the air cylinder body than the end part of the air inlet;
a vacuum cap fixed to a lower end of the cylinder block;
the upper end of the vacuum generator extends upwards to form an insertion column which is inserted at the notch of the cylinder body and fixed by a fixing bolt, the insertion column is provided with an air inlet port, and the vacuum generator is also provided with an exhaust port and a vacuum port which are communicated with the air inlet port,
the vacuum generator at the vacuum port side is fixed with the vacuum cover, and the vacuum port of the fixed vacuum generator is communicated with the inside of the vacuum cover;
and the grinding wheel is positioned at the lower end of the vacuum cover and is driven by the blade group in the cylinder body to run at a high speed.
This pneumatic buffing machine is through connecting vacuum generator in the extension head outside at the cylinder block, and the position that vacuum generator connects is close the cylinder block more, has shortened the distance of air supply to vacuum generator, accords with the gas kinematics principle more, can produce bigger vacuum force, and the dust that the in-process of polishing produced is inhaled cleaner, and dust removal effect has obtained very big improvement.
Furthermore, the notch of the extending head of the cylinder body is arranged in the middle of the front end face of the extending head, and the width of the notch is slightly larger than that of the plug column of the vacuum generator. The design structure is most reasonable, and meanwhile, the fixing is convenient.
Furthermore, be equipped with the bellied outer retainer ring of round on its bottom outer wall of cylinder block, it has 2 breachs to open on the outer retainer ring, be equipped with the fixture block of card in the breach on its inner wall of vacuum lid. The design is convenient and firm to fix.
Further, the vacuum port is flat horn shaped. The vacuum effect is the most ideal by the design.
Furthermore, the pneumatic polishing machine also comprises a dust ring, the dust ring is fixed with the lower end of the vacuum cover, and the gap between the lower end of the dust ring and the grinding wheel is 1-2 mm. The dustproof effect of the design is most ideal.
Furthermore, a clamping ring is arranged on the inner wall of the dust ring, an arc-shaped notch is formed in the vacuum cover and used for being in seamless joint with an arc-shaped clamping block arranged on the side of a vacuum port of the vacuum generator, the arc-shaped clamping block and the vacuum cover are provided with grooves which are mutually connected, and when the vacuum cover is inserted into the dust ring, the grooves clamp the clamping ring to fix the vacuum cover and the dust ring. The design structure is simple and reasonable.
Furthermore, a horizontal fixing through hole is formed in the position, close to the upper end portion, of the insertion column, the fixing through hole enables the air inlet port to be communicated with the air outlet of the air cylinder body, a sealing ring is arranged on one side, not opposite to the air outlet, of the fixing through hole, and the fixing bolt is fixed with the fixing through hole on the side in a threaded mode. The design increases the sealing performance.
Further, the fixing bolt is provided with a chamfer at the head thereof. The design is to better position the plug column of the vacuum generator on the notch of the cylinder body, when the plug column of the vacuum generator is installed in the notch of the cylinder body, the center lines of the two holes are possibly not on the same line, and at the moment, when the fixing bolt is screwed in, the chamfer at the head part of the fixing bolt can rigidly extrude the fixing through hole of the plug column to ensure that the concentricity of the fixing through hole is consistent.
Compared with the prior art, the invention has the advantages that: the grinding device accords with the gas kinematics principle more, can generate larger vacuum force, and dust generated in the grinding process is sucked more cleanly, so that the dust removal effect is greatly improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
figure 1 is an exploded view of an air sander according to the present invention.
Fig. 2 is a schematic structural diagram of a vacuum generator according to the present invention.
Description of reference numerals: 1. a cylinder block; 2. an extension head; 3. an air inlet; 4. a notch; 5. an air outlet; 6. a vacuum cover; 7. a vacuum generator; 8. inserting the column; 9. fixing the bolt; 10. an air inlet port; 11. an exhaust port; 12. a vacuum port; 13. a grinding wheel sheet; 14. an outer retainer ring; 15. a notch; 16. a clamping block; 17. a dust ring; 18. a collar; 19. an arc-shaped notch; 20. an arc-shaped fixture block; 21. a groove; 22. a fixing through hole; 23. and (5) sealing rings.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Example 1
Referring to fig. 1 and 2, the pneumatic polishing machine of the present embodiment includes a vacuum generator 7, a cylinder block 1, a vacuum cap 6, a dust ring 17, a grinding wheel 13 and a fixing bolt 9, wherein the vacuum generator 7 is provided with an air inlet 10, a vacuum port 12 and an air outlet 11 which are communicated with each other, the vacuum port 12 generates vacuum when compressed air enters from the air inlet 10 by using the conventional vacuum negative pressure generating principle, the vacuum port 12 of the vacuum generator 7 is in a flat horn shape, the vacuum end is extended rightward with an arc-shaped block 20, the arc-shaped block 20 is fitted with an arc-shaped notch 19 formed in the vacuum cap 6 to form a seamless insertion, the vacuum port 12 is communicated with the inside of the vacuum cap 6, the outer end of the arc-shaped block 20 and the outer wall of the vacuum cap 6 are provided with grooves 21 which are communicated with each other, the grooves 21 are arranged in a loop, the upper portion of the vacuum generator 7 is extended upward with an insertion column 8, a fixing through hole 22 is horizontally formed at the position, close to the top, of the splicing column 8, the air inlet port 10 is located at the hole bottom of the fixing through hole 22, an extension head 2 extends outwards from the left end of the cylinder body 1, an air inlet 3 communicated with the cylinder body 1 is horizontally formed in the inner side of the extension head 2, a notch 4 is formed in the middle of the outer end face of the extension head 2, the notch 4 is closer to the cylinder body 1 than the port of the air inlet 3, an air outlet 5 communicated with the cylinder body 1 is horizontally formed in the right end face of the notch 4, after the splicing column 8 is spliced in the notch 4, the fixing bolt 9 is screwed into the fixing through hole 22 from the outer side of the extension head 2 for fixing, a sealing ring 23 is fixed in the fixing through hole 22, the sealing ring 23 plays a role in preventing air leakage, a circle of outwards extending outer retaining ring 14 is fixed on the outer wall of the lower end of the cylinder body 1, two opposite notches 15 are formed in the outer retaining ring 14, the inner wall of the vacuum cover 6 is fixed with a block 16 inserted in the gap 15, the dust ring 17 plays a role of shielding, after the dust ring 17 is connected and fixed with the vacuum cover 6, the gap between the dust ring 17 and the grinding wheel 13 at the lower end of the dust ring 17 is ensured to be between 1 and 2 millimeters, the dust ring 17 is hollow, the inner wall of the dust ring 17 is fixed with a ring of clamping ring 18 clamped in the groove 21, when the dust ring 17 is assembled with the vacuum cover 6, the clamping ring 18 at the bottom of the vacuum cover 6 is buckled by the groove 21 to achieve the purpose of fixing the dust ring 17, the head of the fixing bolt 9 is provided with a chamfer, the chamfer aims of chamfering are that when the insertion column 8 of the vacuum generator 7 is installed in the notch 4 of the cylinder body 1, the central lines of the two holes are possibly not on the same line, at this time, when the fixing bolt 9 is screwed in, the chamfer at the head can rigidly extrude the fixing through hole 22 of the insertion column 8, to ensure their concentricity, the grinding wheel 13 is driven by the vane assembly in the cylinder block 1 to rotate at a high speed.
During installation, the notch 15 on the cylinder body 1 is opposite to the fixture block 16 of the vacuum cover 6, the cylinder body 1 is pressed downwards, when the outer retainer ring 14 touches the inner retainer ring of the vacuum cover 6, the vacuum cover 6 can be tightly clamped and well fixed with the cylinder body 1, the sealing ring 23 is placed in the fixing through hole 22 of the insertion column 8 of the vacuum generator 7 and is placed into the notch 4 of the cylinder body 1, the fixing bolt 9 is screwed in, the insertion column 8 of the vacuum generator 7 is fixed, the vacuum generator 7 is well fixed, the protruding clamping ring 18 on the inner side of the dust ring 17 is buckled into the groove 21 of the vacuum cover 6, the vacuum generator 7, the dust ring 17 and the vacuum cover 6 are fixed, and finally the grinding wheel 13 is fixed with the cylinder body 1.
When the pneumatic polishing machine works, compressed air enters from the air inlet 3 of the cylinder block 1 to push the blade group in the cylinder block 1, so that the blade group drives the grinding wheel 13 to run at a high speed, the rotating grinding wheel 13 is contacted with a workpiece for polishing, the compressed air discharged from the cylinder block 1 flows into the air inlet 10 of the vacuum generator 7, vacuum negative pressure is generated at the vacuum port 12 of the vacuum generator 7, and dust generated in the work is sucked from the gap between the dust ring 17 and the grinding wheel 13, passes through the vacuum cover 6, the vacuum port 12 of the vacuum generator 7 and the exhaust port 11 of the vacuum generator 7 and is finally sucked into a dust bag.
The embodiment provides a pneumatic buffing machine, change and connect vacuum generator 7 from 5 outsides of the gas outlet of cylinder block 1 among the prior art, select at extension 2 outer wall middle part fluting 4, reconnect vacuum generator 7, and add on grinding wheel 13 and established dust ring 17, this kind of novel structure, the distance of air supply to vacuum generator 7 has been shortened, accord with the gas kinematics principle more, can produce bigger vacuum force, the dust that produces among the polishing process is inhaled cleaner, the dust removal effect has obtained very big improvement, be worth popularizing and applying.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pneumatic grinder, comprising:
the air cylinder comprises an air cylinder body, an extension head extends from one side of the air cylinder body, an air inlet communicated with the air cylinder body is formed in the outer side of the extension head, a notch is formed in the end face of the front side of the extension head, an air outlet communicated with the air cylinder body is formed in the notch, and the position of the notch is closer to the air cylinder body than the end part of the air inlet;
a vacuum cap fixed to a lower end of the cylinder block;
the upper end of the vacuum generator extends upwards to form an insertion column which is inserted at the notch of the cylinder body and fixed by a fixing bolt, the insertion column is provided with an air inlet port, and the vacuum generator is also provided with an exhaust port and a vacuum port which are communicated with the air inlet port,
the vacuum generator at the vacuum port side is fixed with the vacuum cover, and the vacuum port of the fixed vacuum generator is communicated with the inside of the vacuum cover;
and the grinding wheel is positioned at the lower end of the vacuum cover and is driven by the blade group in the cylinder body to run at a high speed.
2. The pneumatic polishing machine as claimed in claim 1, wherein the cylinder block has a slot of the extension head provided at a middle position of a front end surface of the extension head, and the width of the slot is slightly larger than that of the plug post of the vacuum generator.
3. A pneumatic grinder as claimed in claim 1 or claim 2, wherein the cylinder block has a raised outer rim on the outer wall of the bottom thereof, the outer rim having 2 notches, and the vacuum cover has a locking block on the inner wall thereof for locking in the notches.
4. A pneumatic sander as set forth in claim 1 wherein said vacuum port is a flat horn.
5. A pneumatic grinder as claimed in claim 1 or 4, further comprising a dust ring secured to the lower end of the vacuum cap, wherein the clearance between the lower end of the dust ring and the grinding wheel is 1-2 mm.
6. The pneumatic sander as set forth in claim 5, wherein the dust ring has a collar on its inner wall, the vacuum cap has an arcuate notch for the arcuate latch on the vacuum port side of the vacuum generator to engage seamlessly, the arcuate latch and the vacuum cap have interconnecting grooves, and when the vacuum cap is inserted into the dust ring, the grooves engage the collar to secure the vacuum cap to the dust ring.
7. A pneumatic grinder as claimed in claim 1, wherein the socket post has a horizontal fixing through hole formed near the upper end thereof, the fixing through hole communicating the air inlet port with the air outlet of the cylinder block, the fixing through hole having a seal ring at a side thereof not opposed to the air outlet, and the fixing bolt being threadedly engaged with the fixing through hole at the side thereof.
8. A pneumatic grinder as claimed in claim 7, wherein the anchor stud is chamfered at its head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440977.0A CN113696046A (en) | 2020-05-22 | 2020-05-22 | Pneumatic polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440977.0A CN113696046A (en) | 2020-05-22 | 2020-05-22 | Pneumatic polishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113696046A true CN113696046A (en) | 2021-11-26 |
Family
ID=78646246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010440977.0A Pending CN113696046A (en) | 2020-05-22 | 2020-05-22 | Pneumatic polishing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113696046A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4531329A (en) * | 1983-10-03 | 1985-07-30 | Dynabrade, Inc. | Lip seal shroud |
| US4660329A (en) * | 1980-10-20 | 1987-04-28 | Hutchins Manufacturing Company | Powered abrading tool |
| US5105585A (en) * | 1991-04-26 | 1992-04-21 | The United States Of America As Represented By The Department Of Health And Human Services | Dust emissions control mechanism for hand sanders |
| US5218790A (en) * | 1992-11-12 | 1993-06-15 | Huang Kan Chi | Pneumatically operated debris-removable grinding tool |
| US5319888A (en) * | 1992-11-13 | 1994-06-14 | Dynabrade, Inc. | Random orbital sander |
| US5531639A (en) * | 1992-01-24 | 1996-07-02 | Catalfamo; Giuseppe | Smoothing mill with suction, by depression in three stages, of dust so generated |
| US6004197A (en) * | 1997-01-23 | 1999-12-21 | Hao Chien Chao | Ergonomically friendly random orbital sander construction |
| US6007412A (en) * | 1998-01-30 | 1999-12-28 | Hutchins Manufacturing Company | Rotary abrading or polishing tool |
| CN1313168A (en) * | 2000-03-12 | 2001-09-19 | 罗德克拉福特气动工具股份有限两合公司 | Grinder for one-hand operation |
| CN102794692A (en) * | 2011-05-25 | 2012-11-28 | Kwh米亚卡公司 | Portable tool with movable handle |
| CN206967229U (en) * | 2017-06-21 | 2018-02-06 | 中山市迪米尔机电设备有限公司 | A kind of pneumatic lapper |
| CN208342489U (en) * | 2018-02-05 | 2019-01-08 | 宁波市北仑区富莱特斯气动工具有限公司 | A kind of reinforced pneumatic polisher of dust suction improving structure |
| CN212218087U (en) * | 2020-05-22 | 2020-12-25 | 宁波市祥运气动工具有限公司 | Pneumatic polishing machine |
-
2020
- 2020-05-22 CN CN202010440977.0A patent/CN113696046A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660329A (en) * | 1980-10-20 | 1987-04-28 | Hutchins Manufacturing Company | Powered abrading tool |
| US4531329A (en) * | 1983-10-03 | 1985-07-30 | Dynabrade, Inc. | Lip seal shroud |
| US5105585A (en) * | 1991-04-26 | 1992-04-21 | The United States Of America As Represented By The Department Of Health And Human Services | Dust emissions control mechanism for hand sanders |
| US5531639A (en) * | 1992-01-24 | 1996-07-02 | Catalfamo; Giuseppe | Smoothing mill with suction, by depression in three stages, of dust so generated |
| US5218790A (en) * | 1992-11-12 | 1993-06-15 | Huang Kan Chi | Pneumatically operated debris-removable grinding tool |
| US5319888A (en) * | 1992-11-13 | 1994-06-14 | Dynabrade, Inc. | Random orbital sander |
| US6004197A (en) * | 1997-01-23 | 1999-12-21 | Hao Chien Chao | Ergonomically friendly random orbital sander construction |
| US6007412A (en) * | 1998-01-30 | 1999-12-28 | Hutchins Manufacturing Company | Rotary abrading or polishing tool |
| CN1313168A (en) * | 2000-03-12 | 2001-09-19 | 罗德克拉福特气动工具股份有限两合公司 | Grinder for one-hand operation |
| CN102794692A (en) * | 2011-05-25 | 2012-11-28 | Kwh米亚卡公司 | Portable tool with movable handle |
| CN206967229U (en) * | 2017-06-21 | 2018-02-06 | 中山市迪米尔机电设备有限公司 | A kind of pneumatic lapper |
| CN208342489U (en) * | 2018-02-05 | 2019-01-08 | 宁波市北仑区富莱特斯气动工具有限公司 | A kind of reinforced pneumatic polisher of dust suction improving structure |
| CN212218087U (en) * | 2020-05-22 | 2020-12-25 | 宁波市祥运气动工具有限公司 | Pneumatic polishing machine |
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