CN214748656U - Air tightness detection device for engine cylinder cover - Google Patents
Air tightness detection device for engine cylinder cover Download PDFInfo
- Publication number
- CN214748656U CN214748656U CN202121068633.8U CN202121068633U CN214748656U CN 214748656 U CN214748656 U CN 214748656U CN 202121068633 U CN202121068633 U CN 202121068633U CN 214748656 U CN214748656 U CN 214748656U
- Authority
- CN
- China
- Prior art keywords
- workpiece
- air
- detection
- positioning
- engine cylinder
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses an gas tightness check out test set for engine cylinder head. The equipment comprises a machine body, a detection table for placing a workpiece, a positioning device for fixing the workpiece, an air pressure detection device for detecting the air tightness of the workpiece and a heating device for heating the workpiece; the detection table is connected to the machine body, the positioning devices are arranged into at least two groups and fixedly connected to the machine body, and the movable ends of the positioning devices can be close to or far away from the detection table so as to abut against the workpiece and keep the position of the workpiece; the heating device is arranged on the detection table; the air pressure detection device is connected to the positioning device to introduce air toward the workpiece and detect the airtightness of the workpiece. Therefore, the detection time of the air tightness of the workpiece is shortened, the detection efficiency is improved, and the accuracy of the detection result is also ensured.
Description
Technical Field
The utility model belongs to the technical field of the vehicle, concretely relates to gas tightness check out test set for engine cylinder head.
Background
The engine cylinder head, which is used to close the cylinder and form the combustion chamber, is often in contact with hot, high pressure combustion gases and is therefore subjected to significant thermal and mechanical loads.
The cylinder cover is generally cast by gray cast iron or alloy cast iron, the heat conductivity of the aluminum alloy is good, the compression ratio is favorably improved, and therefore the requirement on the sealing performance of the cylinder cover is higher.
The most common method for inspecting cracks on the surface of a cylinder head is to color the surface of the cylinder head for defect inspection. For the aluminum cylinder head, a coloring agent is sprayed on the part, and then a chemical developer and a developing agent are sprayed on the part, so that the coloring agent in the cracks turns red, and the cracks are shown. Thus, the overall time is long, and the efficiency is low; meanwhile, the inspection may be missed or a part of cracks or dark flaws may not be detected, so that the final inspection result is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an gas tightness check out test set for engine cylinder head to solve among the prior art problem that cylinder head crackle check-up time is long, inefficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the air tightness detection equipment for the engine cylinder cover comprises a machine body, a detection table for placing a workpiece, a positioning device for fixing the workpiece, an air pressure detection device for detecting the air tightness of the workpiece and a heating device for heating the workpiece;
the detection table is connected to the machine body, the positioning devices are arranged into at least two groups and fixedly connected to the machine body, and the movable ends of the positioning devices can be close to or far away from the detection table so as to abut against the workpiece and keep the position of the workpiece;
the heating device is arranged on the detection table; the air pressure detection device is connected to the positioning device to introduce air toward the workpiece and detect the airtightness of the workpiece.
In a possible design, the positioning device includes a positioning seat, a linear actuator and a pressing plate, the linear actuator is disposed on the positioning seat, and the pressing plate is connected to a driving rod of the linear actuator.
In one possible design, the linear drive is a first cylinder or a first linear module.
In a possible design, the positioning device further comprises a first guide rod, and a first guide hole matched with the first guide rod is formed in the positioning seat; the first guide rod is inserted into the first guide hole and connected to the pressing plate, and the axis direction of the first guide rod is parallel to the telescopic direction of the linear driver.
In a possible design, the apparatus further includes a lifting device and a limiting device, the lifting device and the limiting device are located above the detection table, wherein the lifting device is connected to the body, the movable end of the lifting device is connected to the limiting device to drive the limiting device to be close to or far away from the detection table, and the limiting device is used for abutting against the workpiece.
In a possible design, the limiting device comprises a mounting seat and a plurality of groups of driving pieces arranged on the mounting seat, the driving pieces are symmetrically arranged relative to the lifting device, and the telescopic direction of the driving pieces has included angles relative to the vertical direction.
In one possible embodiment, the drive element is a second cylinder or a second linear module.
In a possible design, the device further comprises a second guide rod, and a second guide hole matched with the second guide rod is formed in the mounting seat; the second guide rod is inserted into the second guide hole and connected to the mounting seat, and the axis direction of the second guide rod is parallel to the moving direction of the lifting device.
In the present disclosure, the inspection station is movably connected to the body by a sliding device. The sliding device comprises a sliding block arranged at the bottom of the detection platform, a sliding rail matched with the sliding block and a propping mechanism used for propping against the detection platform; the slide rail extends along the width direction of the machine body, and a positioning hole is formed in the bottom of the detection platform; the abutting mechanism is connected to the machine body and can move in the vertical direction so as to be embedded in the positioning hole and keep the position of the detection table.
In one possible design, the lifting device comprises at least two sets of third cylinders or third linear modules.
In one possible design, the air pressure detecting device includes an air nozzle, an air pipe, an air pump and an air tightness detector, one end of the air pipe is connected to the air pump, the other end of the air pipe is connected to the air nozzle, and the air nozzle is connected to the positioning device; and/or, heating device includes the electrical heating piece, the electrical heating piece set up in detect the platform.
Has the advantages that: through the technical scheme, the workpiece can be placed at any proper position on the detection table, then the workpiece is tightly pressed by the positioning device, then the heating device heats the workpiece, the air pressure detection device pressurizes the cylinder cover, so that the working state of the engine cylinder cover at a certain temperature and pressure is simulated, then the air tightness of the cylinder cover is detected by the air pressure detection device, and therefore the current situation of the cylinder cover can be accurately obtained, the data can be analyzed, and an optimization scheme is provided for the cylinder cover. The whole detection process is short in time consumption and high in efficiency, and the accuracy of the detection result is improved.
Drawings
FIG. 1 is a perspective view of an air-tightness detection device for an engine cylinder head in one embodiment;
fig. 2 is a perspective view of an air-tightness detecting apparatus for an engine cylinder head in an embodiment, wherein fig. 2 is different from fig. 1 in view.
1-machine body, 2-detection table, 3-positioning device, 31-positioning seat, 32-linear driver, 33-pressing plate, 34-first guide rod, 4-lifting device, 5-limiting device, 51-mounting seat, 52-driving piece, 6-second guide rod and 7-sliding device.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, in the case where no explanation is given to the contrary, the use of the directional words such as "upper, lower, left, and right" generally means the upper, lower, left, and right in the normal use condition of the airtightness detection apparatus for the engine cylinder head. The inner and outer parts refer to the inner and outer parts of the corresponding part contour. "distal and proximal" refer to a state of relative distance or proximity. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance. In the drawings, the same reference numerals denote the same elements.
According to an embodiment of the present disclosure, there is provided an air-tightness detecting apparatus for an engine cylinder head, one of which is shown in fig. 1 and 2.
Referring to fig. 1 and 2, the apparatus includes a machine body 1, a detection table 2 for placing a workpiece, a positioning device 3 for fixing the workpiece, an air pressure detection device for detecting air tightness of the workpiece, and a heating device for heating the workpiece.
The detection table 2 is connected to the machine body 1, the positioning devices 3 are arranged into at least two groups and fixedly connected to the machine body 1, and the movable ends of the positioning devices 3 can be close to or far away from the detection table 2 so as to abut against the workpiece and keep the position of the workpiece.
The heating device is arranged on the detection table 2; the air pressure detecting means is connected to the positioning means 3 to introduce air toward the workpiece and detect the airtightness of the workpiece.
Through the technical scheme, the workpiece can be placed at any proper position on the detection table 2, then the workpiece is tightly pressed by the positioning device 3, then the heating device heats the workpiece, the air pressure detection device pressurizes the cylinder cover, so that the working state of the engine cylinder cover under certain temperature and pressure is simulated, then the air tightness of the cylinder cover is detected by the air pressure detection device, and therefore the current situation of the cylinder cover can be accurately obtained, the data can be analyzed, and an optimization scheme is provided for the cylinder cover. The whole detection process is short in time consumption and high in efficiency, and the accuracy of the detection result is improved.
Because the vehicle is often along with certain vibration when moving, in order to improve the effect of simulation, can also increase vibrating device, the operating condition when then simulating the vehicle and driving improves authenticity and the accuracy of gas tightness detection condition.
In one possible design, the positioning device 3 includes a positioning seat 31, a linear actuator 32, and a pressing plate 33, the linear actuator 32 is disposed on the positioning seat 31, and the pressing plate 33 is connected to a driving rod of the linear actuator 32, so that the pressing plate 33 is driven by the movement of the linear actuator 32 to press the workpiece. In the present disclosure, the pressing plate 33 may be a high temperature resistant plastic material or a ceramic material.
Alternatively, the linear actuator 32 is a first cylinder or a first linear module. In the present disclosure, the first cylinder is a standard cylinder model SC100X25 manufactured by Subdake. In other embodiments, a person skilled in the art can select any other cylinder or linear module with any suitable specification according to the application object, and the disclosure is not limited thereto.
Referring to fig. 1 and 2, the positioning device 3 further includes a first guiding rod 34, and the positioning seat 31 is provided with a first guiding hole adapted to the first guiding rod 34; the first guide bar 34 is inserted into the first guide hole and connected to the pressing plate 33, and an axial direction of the first guide bar 34 is parallel to a telescopic direction of the linear actuator 32. In this way, the linear actuator 32 can be guided by the first guide bar 34 to move in a predetermined direction, thereby improving the accuracy of the direction of the linear actuator 32 when moving.
In a possible design, the apparatus further comprises a lifting device 4 and a limiting device 5 located above the detection table 2, wherein the lifting device 4 is connected to the machine body 1, and a movable end of the lifting device 4 is connected to the limiting device 5 to drive the limiting device 5 to approach or leave the detection table 2, and the limiting device 5 is used for abutting against the workpiece, so that the workpiece can be abutted from another direction, thereby improving the reliability of the position of the workpiece.
Specifically, stop device 5 can include mount pad 51 and set up the multiunit driving piece 52 on mount pad 51, and driving piece 52 sets up for elevating gear 4 symmetry, and driving piece 52's flexible direction has the contained angle for vertical direction, and so, can go from different positions to compress tightly the work piece, improves the stability and the reliability of work piece at spacing in-process its position.
Alternatively, the driver 52 is a second cylinder or a second linear module. The specific type and size of the driving member 52 can be flexibly configured by those skilled in the art according to actual needs, and the present disclosure is not limited thereto.
In a possible design, the device further comprises a second guide rod 6, and the mounting seat 51 is provided with a second guide hole matched with the second guide rod 6; the second guide rod 6 is inserted into the second guide hole and connected to the mounting seat 51, and the axial direction of the second guide rod 6 is parallel to the moving direction of the lifting device 4. In this way, the second guide bar 6 can guide the movement of the lifting device 4 in the predetermined direction, thereby improving the accuracy of the direction of the lifting device 4 when moving.
In this disclosure, the lifting device 4 may include at least two sets of third cylinders or third linear modules, so as to uniformly bear the weight, and it is also beneficial to drive the limiting device 5 to move stably at a constant speed.
At least two groups are two or more groups, and any suitable number is meant. Referring to fig. 1 and 2, in an exemplary embodiment, the lifting device 4 includes two sets of third cylinders. In other embodiments, the lifting device 4 may further include three or five third air cylinders.
In an exemplary embodiment, the inspection stage 2 is movably coupled to the machine body 1 by a sliding device 7, so that the position of the inspection stage 2 is adjusted according to the specification of the workpiece.
Specifically, the sliding device 7 comprises a sliding block arranged at the bottom of the detection table 2, a sliding rail matched with the sliding block and a propping mechanism for propping against the detection table 2; the slide rail extends along the width direction of the machine body 1, and the bottom of the detection table 2 is provided with a positioning hole. The abutting mechanism is connected to the machine body 1 and can move in the vertical direction so as to be embedded in the positioning hole and keep the position of the detection table 2.
In this disclosure, air pressure detection device can include air cock, trachea, air pump and airtight detector, and trachea one end is connected in the air pump, and the other end is connected in the air cock, and the air cock is connected in positioner 3, from this, can ventilate towards the work piece through the air pump to survey the gas tightness value of getting this work piece through the airtight detector.
It should be noted that the air-tightness detector may be an existing instrument for detecting air-tightness, or may be a set of device or system for detecting air-tightness.
The heating device comprises an electric heating sheet which is arranged on the detection table 2, so that the workpiece is heated. Specifically, the electric heating plate may be a ceramic heating plate or a mica heating plate, and those skilled in the art can flexibly set the electric heating plate according to actual needs.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. 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 (10)
1. The air tightness detection equipment for the engine cylinder head is characterized by comprising a machine body (1), a detection table (2) for placing a workpiece, a positioning device (3) for fixing the workpiece, an air pressure detection device for detecting the air tightness of the workpiece and a heating device for heating the workpiece;
the detection table (2) is connected to the machine body (1), the positioning devices (3) are arranged into at least two groups and fixedly connected to the machine body (1), and the movable end of each positioning device (3) can be close to or far away from the detection table (2) so as to abut against the workpiece and keep the position of the workpiece;
the heating device is arranged on the detection table (2); the gas pressure detection device is connected to the positioning device (3) to introduce gas towards the workpiece and detect the gas tightness of the workpiece.
2. The air-tightness detection apparatus for an engine cylinder head according to claim 1, characterized in that said positioning device (3) comprises a positioning seat (31), a linear actuator (32) and a pressing plate (33), said linear actuator (32) being arranged on said positioning seat (31), said pressing plate (33) being connected to a driving rod of said linear actuator (32).
3. The air tightness detection device for engine cylinder heads according to claim 2, characterized in that said linear actuator (32) is a first cylinder or a first rectilinear module.
4. The air tightness detection device for the cylinder head of the engine according to claim 2, characterized in that said positioning device (3) further comprises a first guide rod (34), said positioning seat (31) being provided with a first guide hole adapted to said first guide rod (34); the first guide rod (34) is inserted into the first guide hole and connected to the pressing plate (33), and the axial direction of the first guide rod (34) is parallel to the telescopic direction of the linear driver (32).
5. The air tightness detection device for an engine cylinder head according to claim 1, characterized in that it further comprises a lifting means (4) and a stop means (5) located above said detection table (2), wherein said lifting means (4) is connected to said machine body (1) and the movable end of said lifting means (4) is connected to said stop means (5) to drive said stop means (5) close to or away from said detection table (2), said stop means (5) being intended to press said workpiece.
6. The air tightness detection device for an engine cylinder head according to claim 5, characterized in that the stop device (5) comprises a mounting seat (51) and a plurality of sets of driving pieces (52) arranged on the mounting seat (51), the driving pieces (52) are symmetrically arranged relative to the lifting device (4), and the extension and retraction directions of the driving pieces (52) have included angles relative to the vertical direction.
7. The air tightness detection device for an engine cylinder head according to claim 6, characterized in that it further comprises a second guide rod (6), said mounting seat (51) being provided with a second guide hole adapted to said second guide rod (6); the second guide rod (6) is inserted into the second guide hole and connected to the mounting seat (51), and the axial direction of the second guide rod (6) is parallel to the moving direction of the lifting device (4).
8. The apparatus for detecting the tightness of an engine cylinder head according to claim 5, characterized in that said lifting means (4) comprise at least two groups of third cylinders or third rectilinear modules.
9. The air-tightness detection device for engine cylinder heads according to claim 1, characterized in that said detection bench (2) is movably connected to said body (1) by sliding means (7);
the sliding device (7) comprises a sliding block arranged at the bottom of the detection table (2), a sliding rail matched with the sliding block and a propping mechanism used for propping against the detection table (2);
the slide rail extends along the width direction of the machine body (1), and a positioning hole is formed in the bottom of the detection table (2);
the abutting mechanism is connected to the machine body (1) and can move in the vertical direction so as to be embedded in the positioning hole and keep the position of the detection table (2).
10. The air-tightness detection device for an engine cylinder head according to claim 1, characterized in that said air pressure detection means comprise an air tap, an air pipe, an air pump and an air-tightness detector, said air pipe being connected at one end to said air pump and at the other end to said air tap, said air tap being connected to said positioning means (3); and/or, the heating device comprises an electric heating sheet, and the electric heating sheet is arranged on the detection table (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121068633.8U CN214748656U (en) | 2021-05-18 | 2021-05-18 | Air tightness detection device for engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121068633.8U CN214748656U (en) | 2021-05-18 | 2021-05-18 | Air tightness detection device for engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214748656U true CN214748656U (en) | 2021-11-16 |
Family
ID=78623424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121068633.8U Expired - Fee Related CN214748656U (en) | 2021-05-18 | 2021-05-18 | Air tightness detection device for engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214748656U (en) |
-
2021
- 2021-05-18 CN CN202121068633.8U patent/CN214748656U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109520398A (en) | A kind of detection device | |
| CN214748656U (en) | Air tightness detection device for engine cylinder cover | |
| CN102749175B (en) | Device for testing air tightness of four-way valve | |
| CN211121846U (en) | Air tightness detection device of automobile engine manifold | |
| CN211602323U (en) | Engine airtightness testing machine | |
| CN210664923U (en) | Valve sealing performance detection device | |
| KR101642973B1 (en) | leak testing apparatus for valve of internal combustion engine | |
| CN211527734U (en) | Air tightness detection device for disc type motor shell | |
| CN110918794A (en) | Riveting and pressure testing device for plug groups at two ends of automobile side pipe | |
| CN213812016U (en) | Examine utensil with automated inspection function | |
| CN211678854U (en) | Flange leakage test machine | |
| CN210664927U (en) | Airtightness detection work system | |
| CN211979098U (en) | Material moving device of air pump electromagnetic valve comprehensive test equipment | |
| CN202547933U (en) | Air inflow plugging mechanism capable of realizing rapid detection | |
| CN208297043U (en) | Full-automatic die casting airtight detecting apparatus | |
| CN210922547U (en) | Complex die part checking fixture | |
| CN207502123U (en) | Test device for air tightness | |
| CN205324205U (en) | A screening mechanism that is used for missed measure examination platform in full -automatic cross valve | |
| CN217901142U (en) | Airtightness detection device for engine post-processing assembly | |
| CN221123354U (en) | Displacement testing device for liquid expansion type diaphragm capsule | |
| CN215217677U (en) | Heat exchanger control valve detection device | |
| CN218239219U (en) | Outboard engine gear box air tightness detection device | |
| CN212645672U (en) | Composite dimension automatic detection tool | |
| CN211042006U (en) | Single-drive type die part checking fixture | |
| CN116429405B (en) | Device and method for testing fatigue of bumper for robot welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211116 |