CN104832647B - Air path sealing structure - Google Patents
Air path sealing structure Download PDFInfo
- Publication number
- CN104832647B CN104832647B CN201510218553.9A CN201510218553A CN104832647B CN 104832647 B CN104832647 B CN 104832647B CN 201510218553 A CN201510218553 A CN 201510218553A CN 104832647 B CN104832647 B CN 104832647B
- Authority
- CN
- China
- Prior art keywords
- bearing
- hole
- upper lid
- accommodating hole
- wall
- 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.)
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Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
Abstract
The invention discloses an air path sealing structure, which comprises a support seat, an upper cover, a fastening element, a ventilation rod, a sealing component and a bearing, wherein the upper cover is mutually covered with the support seat; an accommodating hole and an air inlet hole communicated with the accommodating hole are formed in the upper cover; a through hole is formed in the support seat; after the support seat and the upper cover are mutually buckled, the accommodating hole and the through hole are in butt joint and are positioned on the same straight line; the sealing component is arranged on the outer wall of the first end of the ventilation rod; at least one bearing is at least arranged on the outer wall of the ventilation rod; the first end, facing the sealing component, of the bearing is tightly locked on the outer wall of the ventilation rod; in addition, the first end is in sealed abutted joint with the step surface arranged in the accommodating hole; the other end of the bearing is in abutted joint with the step part arranged in the through hole. The air path sealing structure has the advantages that the vacuum leakage is prevented, and the sealing performance is better.
Description
Technical field
The present invention relates to sealing structure, more particularly to a kind of gas circuit sealing structure.
Background technology
In SMT industry high speed placement systems, also there is vacuum leak in the movable gas circuit Sealing Technology of placement head component suction nozzle
, the placement head for causing inhales the unstable and inaccuracy of patch components and parts work.
The content of the invention
The technical problem to be solved is：A kind of gas circuit sealing structure is provided, vacuum leak, sealing is prevented
Can be more preferably.
To solve above-mentioned technical problem, the present invention proposes a kind of gas circuit sealing structure, including bearing and bearing are mutually covered
Upper lid, securing member, vent rod, seal member and the bearing for closing, is provided with accommodating hole and passes through with the accommodating hole in the upper lid
Logical air inlet；
Through hole is provided with the bearing, after the bearing is mutually covered with upper lid, accommodating hole is docked and positioned at same with through hole
On one straight line；
The outer wall of the vent rod first end is provided with seal member；
At least provided with a bearing on the outer wall of the vent rod, the bearing leads to towards the first end of the seal member
Cross securing member to be locked on the outer wall of vent rod, and first end is abutted with the step surface being arranged in accommodating hole, bearing it is another
One end abuts with the stage portion in through hole.
Further, the step surface is the bottom surface of upper lid.
Further, the through hole is provided with base away from upper lid end, and the vent rod is located on base.
Further, the upper lid is bolted with bearing.
Further, the outer wall of the vent rod first end is provided with groove, and the seal member is sleeved in groove.
Further, the seal member is sealing ring.
Above-mentioned technical proposal at least has the advantages that：The present invention is adopted and is provided with the outer wall of vent rod first end
Seal member；At least provided with a bearing on the outer wall of vent rod, bearing is passed through into fastening towards the first end of seal member
Part is locked on the outer wall of vent rod, and first end is abutted with the step surface being arranged in accommodating hole, the other end of bearing with
Stage portion in through hole is abutted, and prevents vacuum leak, and sealing property is more preferable.
Description of the drawings
Fig. 1 is the structure sectional view of gas circuit sealing structure of the present invention.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Fig. 3 is the sealing surface layout in gas circuit sealing structure of the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, gas circuit sealing structure of the present invention includes upper lid 2, the fastening that bearing 1 and bearing 1 are mutually covered
Part 3, vent rod 4, seal member 5 and bearing 6.
Accommodating hole 21 and the air inlet 22 with the insertion of accommodating hole 21 are provided with upper lid 2.
Through hole 11 is provided with bearing 1, after bearing 1 is mutually covered with upper lid 2, accommodating hole 21 is docked and be located at through hole 11
On same straight line.Upper lid 2 is bolted with bearing 1, such bearing 1 and the convenient disassembly of upper lid 2, is easy to maintenance.
The outer wall of the upper end of vent rod 4 is provided with groove 41, groove 41 and is set with seal member 5, such as using sealing
Circle.
The outer wall of vent rod 4 is provided with two bearings 6, and bearing 6 is locked towards the first end of seal member 5 by securing member 3
Tightly on the outer wall of vent rod 4, and first end is abutted with the step surface 211 being arranged in accommodating hole 21, the other end of bearing
Abut with the stage portion 111 in through hole 11.It is preferred that bottom surface of the step surface 211 for upper lid 2, can reduce gas circuit sealing knot
The volume of structure, more compact structure.
The lower end of through hole 11 is provided with base 7, and vent rod 4 is located on base 7, and fixation is more firm.
When in use, as shown in figure 3, bearing 6 cooperatively forms primary sealing area 100 with vent rod 4, upper lid 2 is matched somebody with somebody with bearing 6
Conjunction forms secondary sealing area 200, and upper lid 2 and bearing 1 cooperatively form the 3rd sealing surface 300, the 4th sealing surface 400.Meanwhile, it is enclosed within
On vent rod 4 be embedded in groove 41 in O-shaped elastic sealing element 5 under extrusion elastic deformation respectively with securing member 3, accommodating hole 21
The 5th sealing surface 500 at three is formed at medial wall and the roof of accommodating hole 21.Then sealed by the setting of this series structure, protected
There is good sealing in space during gas has been demonstrate,proved from air inlet 22 into vent rod 4, so as to ensure that placement head suction nozzle work
Stability and reliability and accuracy that work is.
To sum up, the whole sealing mechanism of the present invention for can dynamic sealing, participate in the patch of suction up and down and the rotary motion of placement head suction nozzle.
Its main seal feature is to employ O-shaped elastic sealing element 5, by crimp make the seal member 5 of quality of rubber materials with
The vent rod 4 of metal material, bearing 6, upper lid 2 reach the state of close contact and realize fully sealing, and the sealing is participated in
The reliability for sealing can be ensured when the up and down motion and rotary motion of vent rod 4.
The above is the specific embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (6)
1. a kind of gas circuit sealing structure, including bearing and bearing mutually cover upper lid, securing member, vent rod, seal member with
And bearing, it is characterised in that：
Accommodating hole and the air inlet with the accommodating hole insertion are provided with the upper lid；
Through hole is provided with the bearing, after the bearing is mutually covered with upper lid, accommodating hole is docked and positioned at always with through hole
On line；
The outer wall of the vent rod first end is provided with seal member；
At least provided with a bearing on the outer wall of the vent rod, the bearing passes through tight towards the first end of the seal member
Firmware is locked on the outer wall of vent rod, and first end is sealed against with the step surface being arranged in accommodating hole, bearing it is another
One end abuts with the stage portion in through hole；The bearing cooperatively forms primary sealing area with vent rod；The upper lid is matched somebody with somebody with bearing
Conjunction forms secondary sealing area；The upper lid and bearing cooperatively form the 3rd sealing surface, the 4th sealing surface；The seal member difference
With the 5th sealing surface at formation three at securing member, accommodating hole medial wall and accommodating hole roof.
2. gas circuit sealing structure as claimed in claim 1, it is characterised in that the step surface is the bottom surface of upper lid.
3. gas circuit sealing structure as claimed in claim 1, it is characterised in that the through hole is provided with base away from upper lid end, institute
State vent rod to be located on base.
4. gas circuit sealing structure as claimed in claim 1, it is characterised in that the upper lid is bolted with bearing.
5. gas circuit sealing structure as claimed in claim 1, it is characterised in that the outer wall of the vent rod first end is provided with ditch
Groove, the seal member is sleeved in groove.
6. gas circuit sealing structure as claimed in claim 5, it is characterised in that the seal member is sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218553.9A CN104832647B (en) | 2015-04-30 | 2015-04-30 | Air path sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218553.9A CN104832647B (en) | 2015-04-30 | 2015-04-30 | Air path sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832647A CN104832647A (en) | 2015-08-12 |
| CN104832647B true CN104832647B (en) | 2017-04-12 |
Family
ID=53810735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510218553.9A Active CN104832647B (en) | 2015-04-30 | 2015-04-30 | Air path sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104832647B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117943A (en) * | 1997-10-16 | 1999-04-27 | Ishikawajima Harima Heavy Ind Co Ltd | Sealing device of bearing box |
| CN201168705Y (en) * | 2008-03-11 | 2008-12-24 | 赵永先 | Cleaning machine with automatic suction nozzle |
| CN101569996B (en) * | 2009-05-27 | 2010-12-29 | 成都普瑞斯数控机床有限公司 | Novel vertically arranged lower supporting bearing protecting device of screw rod |
| CN202663664U (en) * | 2012-05-11 | 2013-01-09 | 北京中科同志科技有限公司 | Straight-connected sealed chip mounting head |
| CN102729080B (en) * | 2012-07-09 | 2015-12-09 | 三一集团有限公司上海分公司 | Workpiece clamping device and scrape roller |
| CN204784685U (en) * | 2015-04-30 | 2015-11-18 | 深圳市艾迪特智能装备有限公司 | Gas circuit seal structure |
-
2015
- 2015-04-30 CN CN201510218553.9A patent/CN104832647B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104832647A (en) | 2015-08-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |