CN109724757A - A kind of air tightness detecting device of engine cylinder head and its detection method - Google Patents
A kind of air tightness detecting device of engine cylinder head and its detection method Download PDFInfo
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- CN109724757A CN109724757A CN201811573818.7A CN201811573818A CN109724757A CN 109724757 A CN109724757 A CN 109724757A CN 201811573818 A CN201811573818 A CN 201811573818A CN 109724757 A CN109724757 A CN 109724757A
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- engine cylinder
- conveying roller
- closure plate
- air
- cylinder cover
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 5
- 230000008450 motivation Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
A kind of air tightness detecting device of engine cylinder head of the invention and its detection method include conveying roller bed and pressurizing device, wherein the detection device includes conveying roller bed and pressurizing device, conveying roller bed includes carriage and conveying roller, and conveying roller is spaced and parallel to be installed on carriage.The present invention is by utilizing conveying roller, the automatic conveying of engine cylinder cover may be implemented, realize that the clamping to closure plate positions by the effect of the locking cylinder and locking head that are arranged on carriage, it may be implemented to adjust the height of closure plate using lift cylinders simultaneously, at the closure plate that engine cylinder cover to be detected is delivered at locking cylinder under the action of conveying roller, using on closure plate air inlet and plug may be implemented to seal it and air inlet demand, and the locking to engine cylinder cover may be implemented using the pressure plate on mounting rack, the air-leakage test to engine cylinder cover is realized using air pump aerating.
Description
Technical field
The present invention relates to engine cylinder cover detection technique fields, examine more particularly, to a kind of engine cylinder cover air-tightness
Survey device and its detection method.
Background technique
It is the excellent premise of automobile power that engine, which has good air-tightness, and engine cylinder cover is the same with cylinder body, is hair
The main element of motivation, therefore the air-leakage test of cylinder cap is an important link during automobile production, the main body of meaning
Whether being able to maintain good closure in use to cylinder cap as early as possible makes quantitative judgement now, avoids the work to leakage
Part makees further processing and assembly, to guarantee total quality in use and the safety of automobile.
Traditional detection method relies on craft more, and the reliability of testing result is heavily dependent on the technology of testing staff
Level leads to the poor reliability of testing result, while detection efficiency is low.In order to solve the above technical problems, Chinese special
Kind of an engine cylinder cover air-tightness automatic checkout equipment is provided in benefit application CN201810367852.2, by being set to detection platform
On sealing clamp, valve sealing engine cylinder cover to be measured can be simulated, realize the matter to engine cylinder cover mating surface to be measured
The detection of amount, although it solves engine cylinder cover air-tightness automatic detection to a certain extent, in actual use,
It needs for engine cylinder cover to be carried to relatively reasonable position, and and be finely adjusted, just can guarantee the standard of its air-leakage test
True property causes it to use relative complex, time-consuming and laborious.
And as market continues to increase automobile demand amount, continuous improvement of the people to the properties of automobile is all right
More stringent requirements are proposed for the air-leakage test of automobile component.
Summary of the invention
The present invention provides a kind of motivation cylinder cap air-tightness detection device and its detection method, to solve to send out in the prior art
Motivation cylinder cap air-leakage test low efficiency and the technical issues of cannot achieve automation.
According to an aspect of the present invention, a kind of air tightness detecting device of engine cylinder head is provided, including conveying roller bed and
Pressurizing device, the conveying roller bed include carriage and conveying roller, and the conveying roller is spaced and parallel to be installed on the carriage,
And and on the carriage be equipped with multiple clamping cylinders be arranged in parallel with the conveying roller, the opposite side of the clamping cylinder it is described
Carriage is equipped with locking head, and the closure plate being adapted to the engine cylinder cover is equipped between the locking cylinder and the locking head,
The closure plate is equipped with air inlet and plug；The pressurizing device includes mounting rack, air pump and lift cylinders, and the mounting rack is set up
At the carriage both ends, and at the top of the mounting rack, Liftable type is installed with pressure plate, and the pressure plate is in the closure plate
Surface, the air pump are connected by gas-guide tube with the bottom of the air inlet.
On the basis of above scheme preferably, the carriage bottom is installed with lift cylinders, the lift cylinders and the closure plate
It is oppositely arranged.
On the basis of above scheme preferably, be additionally provided with positioning seal ring on the closure plate, the positioning seal ring with start
Machine cylinder cap is adapted.
On the basis of above scheme preferably, the pressure plate is equipped with limited block close to the end face of the closure plate side, and
The external shape fits of the limited block and engine cylinder cover to be detected.
On the basis of above scheme preferably, it is additionally provided on the end face that the limited block is adapted to engine cylinder cover to be detected slow
Punching pad.
On the basis of above scheme preferably, the limited block includes left limit plate and right limit plate, the left limit plate and
The right limit plate slidingtype is installed on the pressure plate.
On the basis of above scheme preferably, the mounting rack is equipped with multiple for Detection location engine cylinder cover to be detected
The position sensor of position.
The present invention also provides a kind of engine cylinder cover air-tightness detection methods, comprising the following steps:
Step S1, cylinder cap is placed on conveying roller, and cylinder cover bottom surface is bonded with the surface of conveying roller；
Step S2, conveying roller drives cylinder cap to move to pressure plate bottom, so that the end face of cylinder cap is adapted positioning with closure plate；
Step S3 compresses cylinder cap using the pressure plate on pressurizing device；
Step S4 inputs gas into air inlet by air pump, detects the air pressure that chamber is formed between its cylinder cap and closure plate.
On the basis of above scheme preferably, further comprising the steps of in step S2:
The relative position of engine cylinder cover and closure plate is adjusted by pressure plate, and is matched for clamping tightly cylinder and lift cylinders adjustment is stifled
Plate, so that the end face of cylinder cap and closure plate are adapted.
Engine cylinder may be implemented by utilizing conveying roller in a kind of air tightness detecting device of engine cylinder head of the invention
The automatic conveying of lid realizes that the clamping to closure plate positions by the effect of the locking cylinder and locking head that are arranged on carriage, together
The height adjustment to closure plate may be implemented in Shi Liyong lift cylinders, when engine cylinder cover to be detected conveys under the action of conveying roller
At closure plate to locking cylinder, using on closure plate air inlet and plug may be implemented to seal it and air inlet demand, and utilize
The locking to engine cylinder cover may be implemented in pressure plate on mounting rack, and the gas to engine cylinder cover is realized using air pump aerating
Close property detection.
A kind of air tightness detecting device of engine cylinder head of the invention, it is compact-sized, by conveying roller on carriage,
Pass through dedicated clamp cylinder cap in this detection method of cylinder, it is ensured that cylinder cap is reliably fixed, to avoid the shifting of cylinder cap
It is dynamic that air-leakage test is had an impact, and in actual use, can be passed through by the lift cylinders of mounting rack bottom
Lift cylinders adjust the relative altitude of closure plate, to be protected with guaranteeing the connection sealing between engine cylinder cover and closure plate to be detected
Demonstrate,prove the accuracy of engine cylinder cover air-leakage test.
Detailed description of the invention
Fig. 1 is a kind of perspective view of air tightness detecting device of engine cylinder head of the invention；
Fig. 2 is a kind of cross-sectional view of air tightness detecting device of engine cylinder head of the invention；
Fig. 3 is the flow diagram of engine cylinder cover air-tightness detection method of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Refering to Figure 1, the present invention provides a kind of air tightness detecting device of engine cylinder head, including conveying roller bed
100 and pressurizing device 200, conveying roller bed 100 includes carriage 110 and conveying roller 112, and conveying roller 112 is spaced and parallel to be installed in
On carriage 110, conveying roller 112 is connected with each other by chain or belt, and is installed with driving motor in 110 bottom of carriage
130,130 drive chain of driving motor or belt rotate, and drive conveying roller 112 to rotate, to realize the automatic of conveying roller 112
Conveying.In use, engine cylinder cover to be detected is placed on conveying roller 112, driving motor 130 drives conveying roller
112 transport, and using the friction force between conveying roller 112 and engine cylinder cover to be detected, realize conveying roller 112 to starting
The orientation of machine cylinder cap conveys.
Please continue to refer to shown in Fig. 2, it is parallel with conveying roller 112 that the present invention is equipped with multiple clamping cylinders 113 on carriage 110
Setting, and locking head 114 is equipped on the carriage 110 of 113 opposite side of clamping cylinder, it is equipped between locking cylinder and locking head 114
The closure plate 120 of engine cylinder cover adaptation.In use, by the elastic of control clamping cylinder 113, to realize the unloading to closure plate 120
With clamping.It is worth noting that closure plate 120 of the invention be equipped with air inlet 121 and plug 122, plug 122 with it is to be detected
Engine cylinder covers hole and is bonded, and to form closed chamber, gas is blasted into engine cylinder cover using air inlet 121,
By the detection indoor pressure of closed chamber, it can be achieved that the detection to engine cylinder cover air-tightness.It is worth noting that the present invention exists
Closure plate 120 is equipped with positioning seal ring 123, and positioning seal ring 123 is adapted with engine cylinder cover, on the one hand, close using positioning
On the other hand fitting closely to engine cylinder cover and closure plate 120, which may be implemented, in seal 123 can also pass through positioning seal ring
The plug 122 and engine cylinder that 123 realization engine cylinders cover cover aperture cooperation, guarantee the leakproofness of its air pressure detection.
Pressurizing device 200 of the invention includes mounting rack 210, air pump 220 and lift cylinders 230, wherein 210 frame of mounting rack
110 both ends of carriage are located at, and 210 top Liftable type of mounting rack is installed with pressure plate 211, pressure plate 211 is in closure plate 120
Surface, air pump 220 are connected by gas-guide tube with the bottom of air inlet 121.
In use, bottom and the closure plate 120 of engine cylinder cover fit closely when engine cylinder cover is delivered at closure plate 120
Afterwards, after plug 122 is adapted with the aperture of perforator cylinder cap, the pressure plate 211 at 210 top of mounting rack is moved downward, pressure plate
211 are downwardly applied to active force is pressed in engine end and covers, and is formed between end cover of engine and closure plate 120 to be further ensured that
Cavity seal, then think to blast gas, after a period of time, detection chambers in air inlet 121 through gas-guide tube by air pump 220
Interior pressure, to complete the sealing propertytest of engine cylinder cover.
Engine may be implemented by utilizing conveying roller 112 in a kind of air tightness detecting device of engine cylinder head of the invention
The automatic conveying of cylinder cap is realized by the effect of the locking cylinder and locking head 114 that are arranged on carriage 110 to closure plate 120
Positioning is clamped, while may be implemented to adjust the height of closure plate 120 using lift cylinders 230, when engine cylinder cover to be detected exists
It is delivered under the action of conveying roller 112 at the closure plate 120 at locking cylinder, utilizes the air inlet 121 and plug 122 on closure plate 120
It may be implemented to seal it and air inlet demand, and may be implemented using the pressure plate 211 on mounting rack 210 to engine cylinder cover
Locking, using 220 aerating of air pump to realize the air-leakage test to engine cylinder cover.
A kind of engine cylinder cover air-leakage test dress of the invention, it is compact-sized, pass through the conveying roller on carriage 110
112, it being covered in this detection method of cylinder by dedicated clamp cylinder 113, it is ensured that cylinder cap is reliably fixed, to avoid
The movement of cylinder cap has an impact air-leakage test, and in actual use, can pass through the liter of 210 bottom of mounting rack
Cylinder 230 is dropped, the relative altitude of closure plate 120 can be adjusted by lift cylinders 230, thus to guarantee engine cylinder cover and closure plate to be detected
Connection sealing between 120 guarantees the accuracy of engine cylinder cover air-leakage test.
Further, it is worth noting that, when detecting different end cover of engine, for the ease of realizing that end cover of engine is determined
Position, the present invention to discharge closure plate 120, and can cooperate lift cylinders 230 to adjust closure plate by the flexible of control clamping cylinder 113
120 relative altitude, so that directly fitting with closure plate 120, after engine cylinder cover enters to avoid manually adjusting engine
Detection efficiency is improved in the relative position of cylinder cap and closure plate 120.
In another preferred embodiment of the invention, pressure plate 211 of the invention is on the end face of 120 side of closure plate
Equipped with limited block 212, and the external shape fits of limited block 212 and engine cylinder cover to be detected.Preferably, the limited block 212 with
Cushion is additionally provided on the end face of engine cylinder cover adaptation to be detected.It, can be to end cover of engine using the effect of limited block 212
The first successive step of left and right relative position, it is ensured that the relative position accuracy of end cover of engine and closure plate 120.
Preferably, limited block 212 of the invention includes left limit plate and right limit plate, and left limit plate and right limit plate slide
Formula is installed on pressure plate 211.
Further, mounting rack 210 of the invention is equipped with multiple for Detection location engine cylinder cover position to be detected
Position sensor.The relative position that engine cylinder cover can be detected by position sensor, by control clamping cylinder 113,
The first adjustment to position to engine cylinder cover may be implemented in the movement of lift cylinders 230 and limited block 212, thus to guarantee to start
The accuracy of machine cylinder cap and 120 relative position of closure plate.
It please refers to shown in Fig. 3, the present invention also provides a kind of engine cylinder cover air-tightness detection methods, including following step
It is rapid:
Cylinder cap is placed on conveying roller 112 by step S1, and cylinder cover bottom surface is bonded with the surface of conveying roller 112；
Step S2, conveying roller 112 drives cylinder cap to move to 211 bottom of pressure plate, so that the end face of cylinder cap and 120 phase of closure plate
Adaptation positioning；
Step S3 compresses cylinder cap using the pressure plate 211 on pressurizing device 200；
Step S4 inputs gas into air inlet 121 by air pump 220, detects and form chamber between its cylinder cap and closure plate 120
The air pressure of room.
In order to ensure the relative position accuracy of engine cylinder cover and closure plate 120, step S2 of the invention further includes following
Step:
The relative position of engine cylinder cover and closure plate 120 is adjusted by pressure plate 211, and is matched for clamping tightly cylinder 113 and lifting
Cylinder 230 adjusts closure plate 120, so that the end face of cylinder cap and closure plate 120 are adapted.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (8)
1. a kind of air tightness detecting device of engine cylinder head, which is characterized in that including conveying roller bed and pressurizing device, the conveying
Roller bed includes carriage and conveying roller, and the conveying roller is spaced and parallel to be installed on the carriage, and and in the carriage
It is equipped with multiple clamping cylinders to be arranged in parallel with the conveying roller, the carriage of the opposite side of the clamping cylinder is equipped with locking
Head, is equipped with the closure plate that be adapted to the engine cylinder cover between the locking cylinder and the locking head, the closure plate equipped with into
Stomata and plug；The pressurizing device includes mounting rack, air pump and lift cylinders, and the mounting rack is erected at the carriage two
End, and Liftable type is installed with pressure plate at the top of the mounting rack, the pressure plate is in right above the closure plate, the air pump
It is connected by gas-guide tube with the bottom of the air inlet.
2. a kind of air tightness detecting device of engine cylinder head as described in claim 1, which is characterized in that also set on the closure plate
There is positioning seal ring, the positioning seal ring is adapted with engine cylinder cover.
3. a kind of air tightness detecting device of engine cylinder head as described in claim 1, which is characterized in that the pressure plate is close
The end face of the closure plate side is equipped with limited block, and the external shape fits of the limited block and engine cylinder cover to be detected.
4. a kind of air tightness detecting device of engine cylinder head as claimed in claim 3, which is characterized in that the limited block with to
Cushion is additionally provided on the end face of detection engine cylinder cover adaptation.
5. a kind of air tightness detecting device of engine cylinder head as claimed in claim 4, which is characterized in that the limited block includes
Left limit plate and right limit plate, the left limit plate and the right limit plate slidingtype are installed on the pressure plate.
6. a kind of air tightness detecting device of engine cylinder head as claimed in claim 4, which is characterized in that set on the mounting rack
There are multiple position sensors for Detection location engine cylinder cover position to be detected.
7. a kind of engine cylinder cover air-tightness detection method, which comprises the following steps:
Step S1, cylinder cap is placed on conveying roller, and cylinder cover bottom surface is bonded with the surface of conveying roller；
Step S2, conveying roller drives cylinder cap to move to pressure plate bottom, so that the end face of cylinder cap is adapted positioning with closure plate；
Step S3 compresses cylinder cap using the pressure plate on pressurizing device；
Step S4 inputs gas into air inlet by air pump, detects the air pressure that chamber is formed between its cylinder cap and closure plate.
8. a kind of engine cylinder cover air-tightness detection method as claimed in claim 7, which is characterized in that further include in step S2
Following steps:
The relative position of engine cylinder cover and closure plate is adjusted by pressure plate, and is matched for clamping tightly cylinder and lift cylinders adjustment closure plate, with
So that the end face of cylinder cap and closure plate are adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573818.7A CN109724757A (en) | 2018-12-21 | 2018-12-21 | A kind of air tightness detecting device of engine cylinder head and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573818.7A CN109724757A (en) | 2018-12-21 | 2018-12-21 | A kind of air tightness detecting device of engine cylinder head and its detection method |
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| Publication Number | Publication Date |
|---|---|
| CN109724757A true CN109724757A (en) | 2019-05-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811573818.7A Pending CN109724757A (en) | 2018-12-21 | 2018-12-21 | A kind of air tightness detecting device of engine cylinder head and its detection method |
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| CN (1) | CN109724757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284625A (en) * | 2020-12-12 | 2021-01-29 | 潍坊思博精工科技有限公司 | Dry-type air tightness detection device for cylinder cover |
| CN115508013A (en) * | 2022-11-16 | 2022-12-23 | 西安成立航空制造有限公司 | Aeroengine machine casket gas tightness detection device |
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| US4171636A (en) * | 1977-11-15 | 1979-10-23 | Bergeron Leonard H | Engine cylinder head pressure test plates |
| US4860575A (en) * | 1988-07-13 | 1989-08-29 | Dover Cylinder Head Service | Apparatus for testing water jackets on cylinder heads of internal combustion engines |
| CN202442849U (en) * | 2011-12-15 | 2012-09-19 | 中国科学院沈阳计算技术研究所有限公司 | System for detecting airtightness of steel ball holes of vehicle engine cylinder head |
| CN205642763U (en) * | 2016-05-29 | 2016-10-12 | 河北瑞丰动力缸体有限公司 | Cylinder cap gas tightness detects machine |
| CN108318195A (en) * | 2018-04-23 | 2018-07-24 | 海纳川（滨州）轻量化汽车部件有限公司 | Engine cylinder cover air-tightness automatic checkout equipment |
| CN108474710A (en) * | 2015-12-16 | 2018-08-31 | 埃尔威玛汽车有限公司 | Leakage tester for cylinder cap, engine cylinder body or like |
| CN108918032A (en) * | 2018-05-15 | 2018-11-30 | 哈尔滨工业大学 | Air tightness detecting device of engine cylinder head |
| CN209400164U (en) * | 2018-12-21 | 2019-09-17 | 湖北云康动力科技有限公司 | A kind of air tightness detecting device of engine cylinder head |
-
2018
- 2018-12-21 CN CN201811573818.7A patent/CN109724757A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171636A (en) * | 1977-11-15 | 1979-10-23 | Bergeron Leonard H | Engine cylinder head pressure test plates |
| US4860575A (en) * | 1988-07-13 | 1989-08-29 | Dover Cylinder Head Service | Apparatus for testing water jackets on cylinder heads of internal combustion engines |
| CN202442849U (en) * | 2011-12-15 | 2012-09-19 | 中国科学院沈阳计算技术研究所有限公司 | System for detecting airtightness of steel ball holes of vehicle engine cylinder head |
| CN108474710A (en) * | 2015-12-16 | 2018-08-31 | 埃尔威玛汽车有限公司 | Leakage tester for cylinder cap, engine cylinder body or like |
| CN205642763U (en) * | 2016-05-29 | 2016-10-12 | 河北瑞丰动力缸体有限公司 | Cylinder cap gas tightness detects machine |
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| CN108918032A (en) * | 2018-05-15 | 2018-11-30 | 哈尔滨工业大学 | Air tightness detecting device of engine cylinder head |
| CN209400164U (en) * | 2018-12-21 | 2019-09-17 | 湖北云康动力科技有限公司 | A kind of air tightness detecting device of engine cylinder head |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284625A (en) * | 2020-12-12 | 2021-01-29 | 潍坊思博精工科技有限公司 | Dry-type air tightness detection device for cylinder cover |
| CN112284625B (en) * | 2020-12-12 | 2022-07-15 | 潍坊思博精工科技有限公司 | Dry-type air tightness detection device for cylinder cover |
| CN115508013A (en) * | 2022-11-16 | 2022-12-23 | 西安成立航空制造有限公司 | Aeroengine machine casket gas tightness detection device |
| CN115508013B (en) * | 2022-11-16 | 2023-04-07 | 西安成立航空制造有限公司 | Aeroengine machine casket gas tightness detection device |
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