CN112253818A - Self-sealing vacuum adsorption mechanism - Google Patents
Self-sealing vacuum adsorption mechanism Download PDFInfo
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- CN112253818A CN112253818A CN202011125353.6A CN202011125353A CN112253818A CN 112253818 A CN112253818 A CN 112253818A CN 202011125353 A CN202011125353 A CN 202011125353A CN 112253818 A CN112253818 A CN 112253818A
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- 238000007789 sealing Methods 0.000 title claims abstract description 107
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 16
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000005728 strengthening Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 241000283216 Phocidae Species 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a self-sealing vacuum adsorption mechanism which comprises a vacuum self-pressure-maintaining cavity, a plurality of first double-sealing vacuum one-way valves, a sealing cover and a second double-sealing vacuum one-way valve, wherein the vacuum self-pressure-maintaining cavity comprises a plurality of rectangular square cavities and reinforcing ribs, the reinforcing ribs are arranged between the adjacent rectangular square cavities, one end of the second double-sealing vacuum one-way valve is communicated with the cavity wall of one of the square cavities, and the other end of the second double-sealing vacuum one-way valve is communicated with an external vacuum-pumping system. According to the invention, the plurality of square cavities are matched with the plurality of one-way valves, so that offline clamping, correcting and adjusting of sheet precision parts can be conveniently realized, the clamping and adjusting can be completed in a machine tool, and the equipment downtime is greatly reduced; moreover, due to the adoption of the double-sealing one-way valve, the mechanism has the function of air leakage self-closing, and the danger caused by the separation of the workpiece when the vacuum pressure is insufficient can be effectively avoided; due to the unique sheet adsorption function, the application range is wider, and the clamping requirement of more product characteristics can be met.
Description
Technical Field
The invention relates to the technical field of numerical control machining, in particular to a self-sealing vacuum adsorption mechanism.
Background
In the numerical control machining work of sheet metal class precision part (especially thin wall antenna class part), because the part adsorbs can not leave the air supply, so the school accent work can only be accomplished in the lathe, needs a large amount of time to level the alignment (about half an hour or so), has reduced the lathe and has driven the rate, can't realize off-line clamping school and transfer, has increased lathe down time by a wide margin, and the aforesaid problem is urgent to be solved, for this reason, provides a self sealss vacuum adsorption mechanism.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to realize the off-line clamping adjustment of sheet type precision parts, avoid the dependence of occuping to the lathe to reduce equipment down time by a wide margin, provide a self sealss vacuum adsorption mechanism.
The invention solves the technical problems by the following technical scheme, and the vacuum self-pressure-retaining vacuum valve comprises a vacuum self-pressure-retaining cavity, a plurality of double-sealing vacuum one-way valves and a sealing cover, wherein the vacuum self-pressure-retaining cavity is of a rectangular structure and comprises a plurality of rectangular square cavities and reinforcing ribs, the reinforcing ribs are arranged between the adjacent rectangular square cavities, one double-sealing vacuum one-way valve is communicated with the cavity wall of one square cavity, the rest double-sealing vacuum one-way valves are arranged on the reinforcing ribs, the sealing cover is buckled with the vacuum self-pressure-retaining cavity, the sealing cover is provided with a plurality of vent holes respectively communicated with the square cavities, and thin plate precision parts on the sealing cover are adsorbed by the vent holes and the double-sealing vacuum one-way valves.
Furthermore, be provided with on the strengthening rib with double sealing vacuum check valve size assorted installation through-hole, double sealing vacuum check valve runs through the installation through-hole sets up, and with the sealed cementing of installation through-hole.
Furthermore, the wall of one of the square cavities is provided with a pipe thread part, and the double-sealing vacuum one-way valve is in threaded connection with the wall of the square cavity through the pipe thread part.
Furthermore, the overall thickness of the vacuum self-pressure-maintaining cavity is 30-50 mm, the wall thickness of the cavity is 6-8 mm, and the bottom thickness of the cavity is 8-10 mm.
Furthermore, the width of the reinforcing rib is 6-8 mm.
Furthermore, a plurality of sealing grooves used for being connected with the thin plate precision parts in an adsorption mode are formed in the sealing cover, a plurality of bosses are formed in the sealing grooves in a criss-cross mode, and the vent holes penetrate through the bosses.
Further, double sealing vacuum check valve includes the outer valve body of first outer valve body, second, valve rod, first sealing washer, second sealing washer, first outer valve body with the outer valve body threaded connection of second, the valve rod runs through simultaneously first outer valve body the outer valve body of second sets up, and with first outer valve body the outer valve body sliding connection of second, first sealing washer sets up the export of first outer valve body, the second sealing washer sets up the export of the outer valve body of second, first sealing washer the second sealing washer all sets up on the valve rod, the inside of the outer valve body of first outer valve body, second is hollow structure to communicate each other.
Compared with the prior art, the invention has the following advantages: the square cavities are matched with the double-sealing one-way valves, so that offline clamping, calibration and adjustment of sheet precision parts can be conveniently realized, the offline clamping and adjustment can be completed in a machine tool, and the equipment downtime is greatly reduced; moreover, due to the adoption of the double-sealing one-way valve, the mechanism has the function of air leakage self-closing, and the danger caused by the separation of the workpiece when the vacuum pressure is insufficient can be effectively avoided; due to the unique sheet adsorption function, the application range is wider, the clamping requirement of more product characteristics can be met, and the device is worthy of being popularized and used.
Drawings
FIG. 1a is a schematic structural view of a vacuum self-pressure-retaining chamber according to the present invention;
FIG. 1b is a cross-sectional view taken at A-A of FIG. 1 a;
FIG. 2a is a schematic view of the closure of the present invention;
FIG. 2b is a cross-sectional view of FIG. 2 a;
FIG. 3 is a schematic structural view of a double-sealing vacuum check valve located inside a vacuum self-pressure-retaining chamber according to the present invention;
FIG. 4 is a schematic structural view of a double sealing vacuum check valve connected to a vacuum pumping system according to the present invention;
figure 5 is a side view of two double seal vacuum check valves of the present invention.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
As shown in fig. 1, the present embodiment provides a technical solution: a self-sealing vacuum adsorption mechanism comprises three main parts, namely a vacuum self-pressure cavity, a plurality of double-sealing vacuum one-way valves (8 and 9) and a sealing cover.
The design of vacuum self preservation protects the pressure chamber and is 300mm ~ 500mm square structure, inside separates into 3X 3 or 4X 4's square chamber according to the size, be separated by the strengthening rib that the width is 6 ~ 8mm between chamber and the chamber, peripheral chamber wall width design is 6 ~ 8mm all around, install double seal vacuum check valve 9 between square chamber and the square chamber, the installation through-hole that processing appearance and double seal vacuum check valve 9 are unanimous in the middle of the cavity strengthening rib, double seal vacuum check valve 9 passes the cavity strengthening rib, adopt sealed glue to splice and seal. Pipe threads are processed at one position of the outer wall of the cavity body and are in sealing connection with one end of a double-sealing vacuum one-way valve 8 through the pipe threads, and the other end of the double-sealing vacuum one-way valve is communicated with one prescription cavity. The thickness of the whole vacuum self-pressure-retaining cavity is 30-50 mm, and the thickness of the cavity bottom is 8-10 mm.
As shown in fig. 2, the external dimension of the seal cover is designed to be consistent with that of the vacuum self-pressure cavity. The outer surface of the sealing cover is provided with a sealing groove with the width of 2mm and the depth of 2mm and a boss with the thickness of 15 mm. The central position of the boss is provided with a vent hole with phi 0.8, the hole position of the vent hole is communicated with each cavity of the vacuum self-pressure-preserving cavity, the inner surface of the sealing cover is a smooth surface and is welded and sealed with the vacuum self-pressure-preserving cavity, and the sealing groove is clamped and connected with the sheet-type precision part in an adsorption manner when in use.
As shown in fig. 3-5, the double-sealing vacuum check valve 9 and the double-sealing vacuum check valve 8 both include a first outer valve body 1, a second outer valve body 2, a valve rod 3, a first sealing ring 31 and a second sealing ring 32, the first outer valve body 1 is in threaded connection with the second outer valve body 2, the valve rod 3 simultaneously penetrates through the first outer valve body 1 and the second outer valve body 2 and is in sliding connection with the first outer valve body 1 and the second outer valve body 2, the first sealing ring 31 is arranged at an outlet of the first outer valve body 1, the second sealing ring 32 is arranged at an outlet of the second outer valve body 2, the first sealing ring 31 and the second sealing ring 32 are both installed on the valve rod 3 and are fixedly connected with the first outer valve body 1 and the second outer valve body 2, and the interiors of the first outer valve body 1 and the second outer valve body 2 are both in a.
The first sealing ring 31 is a circular sealing ring and is used for playing a role in sealing a first layer and realizing gas circulation by matching with an outlet of the second outer valve body 2.
The second sealing washer 32 is the little T shape sealing washer of the big one end of one end, the great one end of area of T shape sealing washer is located the outside of whole valve body, and the less one end of area is located the inboard of whole valve body, above-mentioned structure with the export shape phase-match of first outer valve body 1 can effectively increase the area of contact when sealing first outer valve body 1, improves sealed effect for play the sealed effect of second floor, can cooperate the export realization gas circulation of first outer valve body 1.
Double-sealing vacuum check valve 9 and double-sealing vacuum check valve 8 all still include locating component, locating component includes connecting seat 41 and locking dish 42, connecting seat 41 with valve rod 3 fixed connection, locking dish 42 with the connection can be dismantled to valve rod 3, connecting seat 41 with locking dish 42 sets up respectively first sealing washer 31's both sides are used for playing the fixed effect of first sealing washer 31 position.
Double-sealing vacuum check valve 9 and double-sealing vacuum check valve 8 all still include coupling spring 5, supporting seat 6, coupling spring 5's one end with connecting seat 41 is connected, the other end with supporting seat 6 is connected, coupling spring 5 cover is established the valve rod 3 is outside, can play the effect that drives first sealing washer 31 and the motion of valve rod 3.
The connecting spring 5 is a T-shaped spring.
The support seat 6 is not connected to the first outer valve body 1.
Double-sealing vacuum check valve 9 and double-sealing vacuum check valve 8 all still include auxiliary seal circle 7, auxiliary seal circle 7 sets up the outer valve body 2 of second with sealing connection department between the first outer valve body 1 mainly plays the work of connecting seal between valve body self structure, can prevent effectively that gas leakage from appearing in valve body self.
The valve rod 3 is provided with a caulking groove 321 for mounting the second sealing ring 32.
The first outer valve body 1 is provided with a first through hole 11, the second outer valve body 2 is provided with a second through hole 21, and the first through hole 11 and the second through hole 21 are used for realizing circulation of internal and external environment gas.
The double-sealing vacuum one-way valve 8 further comprises a connecting sleeve 12, wherein the connecting sleeve 12 and the outlet of the first outer valve body 1 are integrally formed and are used for being conveniently connected with an external vacuum pumping system.
The working principle is as follows: when in use, the double-sealing vacuum one-way valve 9 and the double-sealing vacuum one-way valve 8 are respectively arranged at the appointed positions on the vacuum self-pressure-preserving cavity, the direction of each one-way valve needs to be noticed during installation, after each one-way valve is installed, the double-sealing vacuum one-way valve 8 is connected with an external vacuumizing system through a connecting sleeve 12, at the moment, a sealing cover and the vacuum self-pressure-preserving cavity are welded and sealed, then a sealing groove is clamped with a sheet precision part, the vacuumizing system is started, the internal pressure of the vacuum self-pressure-preserving cavity is higher than the external pressure at the initial stage, at the moment, the T-shaped spring is stressed and compressed, the T-shaped sealing ring and the circular sealing ring leave the initial position and move leftwards, after vacuumizing is stopped, the external pressure is higher than the internal pressure of the vacuum self-pressure-preserving cavity, the T-shaped spring drives the T-shaped sealing ring, the inner space of the vacuum self-pressure-retaining cavity is sealed, and the leakage rate of the check valve is greatly reduced due to double-layer sealing, so that stable adsorption on sheet precision parts is realized, and the danger caused by separation of a workpiece when the vacuum pressure is insufficient is effectively avoided.
In conclusion, the self-sealing vacuum adsorption mechanism can conveniently realize offline clamping and adjustment of sheet precision parts without being finished in a machine tool, thereby greatly reducing the equipment downtime; moreover, due to the adoption of the double-sealing one-way valve, the mechanism has the function of air leakage self-closing, and the danger caused by the separation of the workpiece when the vacuum pressure is insufficient can be effectively avoided; due to the unique sheet adsorption function, the application range is wider, the clamping requirement of more product characteristics can be met, and the device is worthy of being popularized and used.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. The utility model provides a self sealss vacuum adsorption mechanism which characterized in that: including vacuum self preservation pressure chamber, a plurality of first double sealing vacuum check valve, closing cap, the double sealing vacuum check valve of second, vacuum self preservation pressure chamber includes a plurality of square chambeies and strengthening rib, the strengthening rib sets up adjacently between the square chamber, the one end and one of them of the double sealing vacuum check valve of second the chamber wall intercommunication in square chamber, the other end and outside vacuum pumping system intercommunication, it is a plurality of first double sealing vacuum check valve sets up each on the strengthening rib, the closing cap with vacuum self preservation pressure chamber is connected, be provided with a plurality ofly on the closing cap and each the air vent that the square chamber communicates respectively, through the air vent reaches double sealing vacuum check valve will the accurate part of sheet metal class on the closing cap adsorbs.
2. The self-sealing vacuum attachment mechanism of claim 1, wherein: be provided with on the strengthening rib with first double-sealed vacuum check valve size assorted installation through-hole, first double-sealed vacuum check valve runs through the installation through-hole sets up, and with the sealed cementing of installation through-hole.
3. The self-sealing vacuum attachment mechanism of claim 2, wherein: and a pipe thread part is arranged on the cavity wall of one of the square cavities, and the second double-sealing vacuum one-way valve is in threaded connection with the cavity wall of the square cavity through the pipe thread part.
4. A self-sealing vacuum attachment mechanism as claimed in claim 3, wherein: the sealing cover is provided with a plurality of sealing grooves used for being in adsorption connection with sheet-type precision parts, the sealing grooves are criss-cross to form a plurality of bosses, and the vent holes penetrate through the bosses.
5. The self-sealing vacuum attachment mechanism of claim 4, wherein: first double-sealing vacuum check valve second double-sealing vacuum check valve all includes first outer valve body, the outer valve body of second, valve rod, first sealing washer, second sealing washer, first outer valve body with the outer valve body threaded connection of second, the valve rod runs through simultaneously first outer valve body the outer valve body of second sets up, and with first outer valve body the outer valve body sliding connection of second, first sealing washer sets up the export of first outer valve body, the second sealing washer sets up the export of the outer valve body of second, first sealing washer the second sealing washer all sets up on the valve rod, the inside of first outer valve body, the outer valve body of second is hollow structure to communicate each other.
6. The self-sealing vacuum attachment mechanism of claim 5, wherein: the vacuum self-pressure-retaining cavity is of a rectangular structure, and the square cavity is a rectangular square cavity.
7. The self-sealing vacuum attachment mechanism of claim 6, wherein: the whole thickness of vacuum self-pressure-retaining cavity is 30-50 mm, the thickness of cavity wall is 6-8 mm, and the thickness of cavity bottom is 8-10 mm.
8. The self-sealing vacuum attachment mechanism of claim 7, wherein: the width of strengthening rib is 6 ~ 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125353.6A CN112253818B (en) | 2020-10-20 | 2020-10-20 | Self-sealing vacuum adsorption mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125353.6A CN112253818B (en) | 2020-10-20 | 2020-10-20 | Self-sealing vacuum adsorption mechanism |
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| Publication Number | Publication Date |
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| CN112253818A true CN112253818A (en) | 2021-01-22 |
| CN112253818B CN112253818B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011125353.6A Active CN112253818B (en) | 2020-10-20 | 2020-10-20 | Self-sealing vacuum adsorption mechanism |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205928546U (en) * | 2016-07-08 | 2017-02-08 | 青岛理工大学 | Double-sided vacuum adsorption device and adsorption system capable of self-adapting to workpiece size |
| CN207229846U (en) * | 2017-08-04 | 2018-04-13 | 普利莱（天津）燃气设备有限公司 | A kind of low pressure double containment gas-liquid separation check valve |
| CN207316161U (en) * | 2017-11-01 | 2018-05-04 | 邛崃市欣凡尔阀业有限公司 | One kind encryption double containment environmental protection check-valves |
| CN107984273A (en) * | 2017-11-29 | 2018-05-04 | 西安航空职业技术学院 | A kind of vacuum check valve |
| CN110043699A (en) * | 2018-01-16 | 2019-07-23 | 宝山钢铁股份有限公司 | Super-pressure check valve apparatus |
| CN210240674U (en) * | 2019-07-16 | 2020-04-03 | 滨海九通阀门有限公司 | High-pressure deep cooling axial flow type check valve double-sealing structure |
| CN210461809U (en) * | 2019-06-21 | 2020-05-05 | 瑞肯耐特流体控制系统（镇江）有限公司 | Check valve connecting device and air conditioning system |
| CN111255927A (en) * | 2020-01-14 | 2020-06-09 | 珠海格力电器股份有限公司 | Novel dual self sealss stop valve and air conditioner |
| CN213776475U (en) * | 2020-10-20 | 2021-07-23 | 中国电子科技集团公司第三十八研究所 | Vacuum adsorption mechanism capable of realizing self-pressure maintaining |
-
2020
- 2020-10-20 CN CN202011125353.6A patent/CN112253818B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205928546U (en) * | 2016-07-08 | 2017-02-08 | 青岛理工大学 | Double-sided vacuum adsorption device and adsorption system capable of self-adapting to workpiece size |
| CN207229846U (en) * | 2017-08-04 | 2018-04-13 | 普利莱（天津）燃气设备有限公司 | A kind of low pressure double containment gas-liquid separation check valve |
| CN207316161U (en) * | 2017-11-01 | 2018-05-04 | 邛崃市欣凡尔阀业有限公司 | One kind encryption double containment environmental protection check-valves |
| CN107984273A (en) * | 2017-11-29 | 2018-05-04 | 西安航空职业技术学院 | A kind of vacuum check valve |
| CN110043699A (en) * | 2018-01-16 | 2019-07-23 | 宝山钢铁股份有限公司 | Super-pressure check valve apparatus |
| CN210461809U (en) * | 2019-06-21 | 2020-05-05 | 瑞肯耐特流体控制系统（镇江）有限公司 | Check valve connecting device and air conditioning system |
| CN210240674U (en) * | 2019-07-16 | 2020-04-03 | 滨海九通阀门有限公司 | High-pressure deep cooling axial flow type check valve double-sealing structure |
| CN111255927A (en) * | 2020-01-14 | 2020-06-09 | 珠海格力电器股份有限公司 | Novel dual self sealss stop valve and air conditioner |
| CN213776475U (en) * | 2020-10-20 | 2021-07-23 | 中国电子科技集团公司第三十八研究所 | Vacuum adsorption mechanism capable of realizing self-pressure maintaining |
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| CN112253818B (en) | 2024-06-07 |
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