CN104729802A - Lateral compressing structure of gas tightness detector for cylinder heads - Google Patents
Lateral compressing structure of gas tightness detector for cylinder heads Download PDFInfo
- Publication number
- CN104729802A CN104729802A CN201510180515.9A CN201510180515A CN104729802A CN 104729802 A CN104729802 A CN 104729802A CN 201510180515 A CN201510180515 A CN 201510180515A CN 104729802 A CN104729802 A CN 104729802A
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- cylinder
- lateral
- cylinder cap
- compressing
- compression
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- 230000006835 compression Effects 0.000 claims description 50
- 238000007906 compression Methods 0.000 claims description 50
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a lateral compressing structure of a gas tightness detector for cylinder heads, and belongs to the field of liquid sealing tests for structural components. The lateral compressing structure comprises cylinders, rubber mats (6), sealing plugs (5) and a mounting seat. The cylinders include a lateral upper compressing cylinder (1) and lateral lower compressing cylinders (2), and a connecting plate (3) is connected with a free end of a piston rod of the lateral upper compressing cylinder (1); a plurality of connecting columns (4) are connected with the connecting plate (3), and the sealing plugs (5) are respectively arranged at free ends of the connecting columns (4); the rubber mats (6) are arranged at free ends of piston rods (7) of the lateral lower compressing cylinders, and included angles of 5-10 degrees are formed between the piston rods (7) of the lateral lower compressing cylinders and the horizontal plane. The lateral compressing structure has the advantages that the gas tightness of the cylinder heads can be conveniently and quickly detected on the premise that the cylinder heads are not damaged, accordingly, excellent sealing effects can be realized, and the detection precision can be improved.
Description
Technical field
The present invention relates to the fluid sealability field tests of structure member, be specifically related to a kind of cylinder cap air-leakage detector side compression structure.
Background technology
Automobile engine cylinder head is a very important assembly in engine system, and Main Function is drawn onto cylinder interior air, and burning mixture lighted by spark plug, and drive piston acting, waste gas is discharged from gas outlet.The impermeability of cylinder cap is one of key factor affecting product quality, and therefore, air-leakage test is the essential items for inspection in engine cylinder cover production run.And cylinder cap air-leakage detector is mainly when cylinder cap dispatches from the factory, be used for detecting its impermeability.
The traditional detection cylinder cap sealing of cylinder cap air-leakage detector adopts immersion or the visual bubble method of immersion oil, its equipment is simple, visual result, but precision and efficiency of detecting is low, human factor impact is comparatively large, cannot realize automatic ration and leak hunting, also humidity can be brought to get rusty to workpiece simultaneously, the harmful effects such as impurity immersion, it directly has influence on the performance of engine.Also there is small part to adopt gas detection method, namely seal with the pore of seal plug to cylinder cap, then to the cylinder cap ventilation after sealing, judge that whether cylinder cap impermeability is good by the change of measuring air pressure before and after ventilation.When adopting gas detection method, very high to the bubble-tight requirement of cylinder cap.But there is following defect during traditional cylinder cap air-leakage test: just compress with a cylinder on top, cylinder cap upper lateral part and side lower part pore only carry out blocking and not compressing, the sealing of pore can not be ensured like this, simultaneously in order to ensure tight with air-leakage detector contacts baseplate bottom cylinder cap, impermeability is good, cylinder is needed to apply very large power to cylinder cap, the easy like this infringement causing cylinder and cylinder cap.
Summary of the invention
The object of the present invention is to provide a kind of cylinder cap air-leakage test side compression air cylinder structure, can conveniently detect cylinder cap impermeability under the prerequisite not damaging cylinder cap, sealing effectiveness is better, improves accuracy of detection.
For achieving the above object, technical scheme of the present invention is as follows: a kind of cylinder cap air-leakage detector side compression structure, comprise cylinder, rubber cushion, seal plug and mount pad, described cylinder is divided into compression cylinder and side lower compression cylinder on side, and on described side, compression cylinder piston rod free end is connected with web joint; Described web joint is connected with joint pin, and described joint pin is multiple, and described joint pin free end arranges seal plug respectively; Described rubber cushion is arranged on side lower compression cylinder piston rod free end, and described side lower compression cylinder piston rod and mount pad base plate are 5 ° ~ 10 ° angles.
When adopting such scheme, rubber cushion and seal plug are closed the both sides of cylinder cap and the pore of oblique upside respectively.When carrying out detection impermeability, on side, compression cylinder piston rod promotes web joint thus drives joint pin to move, and is arranged on the pore of the seal plug blocking cylinder cap upper lateral part on joint pin and compresses cylinder cap, making cylinder cap closure better.Side lower compression cylinder piston rod blocks cylinder cap sidepiece pore and compresses.Cylinder cap sidewall becomes the angle of 5 ° ~ 10 ° with surface level, side lower compression cylinder piston rod becomes 5 ° ~ 10 ° angles with surface level, can to guarantee that when sealing rubber cushion and cylinder cap are fitted completely and make better tightness.On side, compression cylinder and side lower compression cylinder seal cylinder cap respectively and compress, and sealing effectiveness can be made better, and accuracy of detection is higher.And compression cylinder and side lower compression cylinder compress cylinder cap at the same time on side, compared with compressing structure before, the power dispersion that cylinder cap is subject to ensureing bubble-tight while, is unlikely to single place and damages by larger power.
Preferably, on described side, compression cylinder is provided with guide rail in mount pad one side, web joint is connected with slide, compression cylinder piston rod on side can be made more stable when promoting the motion of the joint pin on web joint, seal plug can not offset, exactly hole to be sealed on cylinder cap can be blocked, thus improve sealing effectiveness.
Preferably, on described side, compression cylinder is dual piston cylinder, and make compression cylinder piston rod on side more stable when releasing, cylinder cap is stressed more even.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is cylinder cap air-leakage detector side compression structural representation of the present invention;
Fig. 2 is the rear view of Fig. 1;
The schematic diagram of structure when Fig. 3 is two cylinder cap air-leakage test side compression arrangement works.
Reference numeral in Figure of description comprises: 1, compression cylinder on side; 2, side lower compression cylinder; 3, web joint; 4, joint pin; 5, seal plug; 6, rubber cushion; 7, side lower compression cylinder piston rod; 8, guide rail.
Embodiment
Below by embodiment, the present invention is further detailed explanation: as shown in Figure 1, Figure 2 and Figure 3, and cylinder cap air-leakage test pressure measurement locking structure has two, is separately positioned on air-leakage detector base plate two ends.Cylinder cap air-leakage detector side compression structure, comprise cylinder, rubber cushion 6, seal plug 5 and mount pad, cylinder is divided into compression cylinder 1 and side lower compression cylinder 2 on side, on side, compression cylinder 1 piston rod is fixedly connected with web joint 3, web joint 3 and joint pin 4 are threaded connection, joint pin 4 has eight, and joint pin 4 other end is provided with seal plug 5.Rubber cushion 6 is arranged on lower compression cylinder piston rod 7 one end, side, and side lower compression cylinder piston rod 7 and base plate are 10 ° of angles.On side, compression cylinder 1 is arranged on above side lower compression cylinder 2, and on side, compression cylinder 1 and base plate are formed domatic.On side, compression cylinder 1 is provided with dove-tail guide rail 8 in mount pad one side, and web joint 3 follows guide rail 8 and moves.
The rubber cushion 6 of cylinder air-leakage test side compression structure and seal plug 5 are closed the both sides of cylinder cap and the pore of oblique upside respectively.Side lower compression cylinder piston rod 7 and detector base plate are 10 ° of angles, then cylinder piston rod and cylinder cap lateral vertical, then when sealing, rubber cushion 6 is parallel with cylinder cap side, maximum with the contact area of cylinder cap side, cylinder cap pore can be covered completely, make better tightness.When on side, compression cylinder 1 piston promotion web joint 3 moves, web joint 3 follows guide rail and moves and guarantee that direction is stablized.When carrying out air-leakage test, under the effect of cylinder, piston promotes rubber cushion 6 and joint pin 4 moves, under the effect of the power of rubber cushion 6 and joint pin 4, fixing cylinder cap, and compress, make bottom cylinder cap tightr with contacting of detector with both sides, get rid of the impact on testing result produced because of gas leakage, make compactedness detector error less, can more effective detection cylinder cap impermeability.And compression cylinder 1 and side lower compression cylinder 2 compress cylinder cap at the same time on side, compared with compressing structure before, the power dispersion that cylinder cap is subject to ensureing bubble-tight while, is unlikely to single place and damages by larger power.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in instructions etc. record the content that may be used for explaining claim.
Claims (3)
1. a cylinder cap air-leakage detector side compression structure, comprise cylinder, rubber cushion (6), seal plug (5) and mount pad, it is characterized in that, described cylinder is divided into compression cylinder on side (1) and side lower compression cylinder (2), and on described side, compression cylinder (1) piston rod free end is connected with web joint (3); Described web joint (3) is connected with joint pin (4), and described joint pin (4) is for multiple, and described joint pin (4) free end arranges seal plug (5) respectively; Described rubber cushion (6) is arranged on side lower compression cylinder piston rod (7) free end, and described side lower compression cylinder piston rod (7) is horizontal by 5 ° ~ 10 ° angles.
2. cylinder cap air-leakage detector side compression structure as claimed in claim 1, is characterized in that, on described side, compression cylinder (1) is provided with guide rail (8) in mount pad one side, and web joint (3) and guide rail (8) are slidably connected.
3. cylinder cap air-leakage detector side compression structure as claimed in claim 1, it is characterized in that, on described side, compression cylinder (1) is dual piston cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180515.9A CN104729802A (en) | 2015-04-16 | 2015-04-16 | Lateral compressing structure of gas tightness detector for cylinder heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180515.9A CN104729802A (en) | 2015-04-16 | 2015-04-16 | Lateral compressing structure of gas tightness detector for cylinder heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104729802A true CN104729802A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510180515.9A Pending CN104729802A (en) | 2015-04-16 | 2015-04-16 | Lateral compressing structure of gas tightness detector for cylinder heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104729802A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226008A (en) * | 2016-08-26 | 2016-12-14 | 青岛华涛汽车模具有限公司 | A kind of airtight cold plug in all-in-one |
| WO2024198037A1 (en) * | 2023-03-27 | 2024-10-03 | 天津博益气动股份有限公司 | Automatic blocking device for micro-hole formed at intersection of surfaces |
-
2015
- 2015-04-16 CN CN201510180515.9A patent/CN104729802A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226008A (en) * | 2016-08-26 | 2016-12-14 | 青岛华涛汽车模具有限公司 | A kind of airtight cold plug in all-in-one |
| CN106226008B (en) * | 2016-08-26 | 2018-09-28 | 青岛华涛汽车模具有限公司 | A kind of airtight cold plug in all-in-one machine |
| WO2024198037A1 (en) * | 2023-03-27 | 2024-10-03 | 天津博益气动股份有限公司 | Automatic blocking device for micro-hole formed at intersection of surfaces |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150624 |
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| WD01 | Invention patent application deemed withdrawn after publication |