Automatic air tightness detection tool for valve chamber cover

Abstract

The utility model relates to the technical field of air tightness detection of valve chamber covers, in particular to an automatic air tightness detection tool for valve chamber covers, which comprises a base, four corners of the upper end of the base are fixedly connected with supporting columns, the upper ends of the four supporting columns are fixedly connected with a top plate, and the upper end of the top plate is fixedly connected with six first cylinders. The six first air cylinders are distributed at equal intervals in a straight line shape, the left end of the base is fixedly connected with a supporting frame, the supporting frame is of an L-shaped structure, the upper portion of the left end of the supporting frame is fixedly connected with a second air cylinder, and the second air cylinder is of a structure high in the left and low in the right, and a second supporting plate is placed in the middle of the upper end of the base. A first supporting plate is installed and connected to the middle of the upper end of the second supporting plate, a valve chamber cover body is placed at the upper end of the first supporting plate, and a plurality of lever air cylinders are installed and connected to the upper end of the second supporting plate. According to the automatic air tightness detection tool for the valve chamber cover, the working efficiency during production is improved, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve cover air tightness testing technology, and in particular to an automated valve cover air tightness testing fixture. Background Technology

[0002] The XTQ-011 valve cover is injection molded in two separate pieces, resulting in a loose component. A vibration friction welding fixture is used to weld the main body to the top cover. Other components are then assembled to form the XTQ-011 valve cover assembly. To test the airtightness of the valve cover, an airtightness testing fixture is designed based on the XTQ-011 valve cover assembly structure and the corresponding cylinder block structure. This fixture seals all potential leaks, leaving only one air inlet. After setting the monitoring parameters on an airtightness testing instrument, the equipment can be started to test the airtightness of the XTQ-011 valve cover assembly. However, the entire process is cumbersome, requiring assembly before testing, which affects efficiency. Therefore, we have introduced an automated valve cover airtightness testing fixture. Utility Model Content

[0003] The main purpose of this invention is to provide an automated valve cover airtightness testing fixture, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An automated valve cover airtightness testing fixture includes a base, with support columns fixedly connected to the four corners of the upper end of the base. A top plate is fixedly connected to the upper end of the four support columns. Six cylinders are fixedly connected to the upper end of the top plate, and the six cylinders are evenly distributed in a straight line. A support frame is fixedly connected to the left end of the base. The support frame has an "L" shape structure. A cylinder is fixedly connected to the upper left end of the support frame. The cylinder has a left-high, right-low structure. A support plate is placed in the middle of the upper end of the base. A support plate is installed in the middle of the upper end of the support plate. The valve cover body is placed on the upper end of the support plate. Several lever cylinders are installed on the upper end of the support plate.

[0006] By adopting the above technical solution: the six cylinders No. 1 and No. 2 are of model SC63X250.

[0007] Preferably, the valve cover body is provided with an air inlet, and an oil cap plug hole is provided in the middle of the valve cover body.

[0008] Preferably, the first support plate and the valve cover body are both located between several lever cylinders.

[0009] Preferably, the working ends of the plurality of lever cylinders are in contact with the valve cover body.

[0010] By adopting the above technical solution: the lever cylinder model is alc-50 lever cylinder.

[0011] Preferably, each of the telescopic ends of the plurality of cylinders is fixedly connected with a plug, and the other end of each of the plugs is a conical structure.

[0012] Preferably, a pad is installed and connected to the upper end of the base, and the second support plate is located on the pad.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, a first support plate is set up, on which the valve cover body is placed. The first support plate matches the lower end of the valve cover body. Then, several lever cylinders installed on a second support plate are activated. The working ends of the lever cylinders are all pressed into the connection port on the outer surface of the valve cover body, pressing the valve cover body and the first support plate tightly. This pressing simulates the bolt tightening state during vehicle installation. Then, several first and second cylinders are activated. The plugs at the working ends of the first cylinders and the telescopic ends of the second cylinders seal the holes on the valve cover body, simulating the vehicle installation state. The valve cover body can then be airtightly tested through the air inlet, realizing automated airtightness testing, improving work efficiency during production, improving product quality, and reducing the workload of employees. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an automated valve cover airtightness testing fixture according to the present invention;

[0016] Figure 2 This is a front view of an automated valve cover airtightness testing fixture according to the present invention.

[0017] Figure 3 This is a right view of an automated valve cover airtightness testing fixture according to the present invention.

[0018] Figure 4 This is a rear view of an automated valve cover airtightness testing fixture according to the present invention.

[0019] Figure 5 This is a top view of an automated valve cover airtightness testing fixture according to the present invention.

[0020] In the diagram: 1. Base; 2. Air inlet; 3. Support column; 4. Top plate; 5. Cylinder No. 1; 6. Cylinder No. 2; 7. Support frame; 8. Support plate No. 2; 9. Support plate No. 1; 10. Oil cap plug; 11. Valve cover body; 12. Lever cylinder; 101. Gasket; 51. Plug. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-5 This utility model provides a technical solution:

[0025] An automated valve cover airtightness testing fixture includes a base 1, with support columns 3 fixedly connected to the four corners of the upper end of the base 1. A top plate 4 is fixedly connected to the upper end of the four support columns 3. Six cylinders 5 are fixedly connected to the upper end of the top plate 4. The six cylinders 5 are distributed in a straight line at equal intervals. A support frame 7 is fixedly connected to the left end of the base 1. The support frame 7 has an "L" shaped structure. A cylinder 6 is fixedly connected to the upper left end of the support frame 7. The cylinder 6 has a left-high-right-low structure. A support plate 8 is placed in the middle of the upper end of the base 1. A support plate 9 is installed in the middle of the upper end of the support plate 8. The valve cover body 11 is placed on the upper end of the support plate 9. Several lever cylinders 12 are installed on the upper end of the support plate 8.

[0026] In this embodiment, an air inlet 2 is provided on the valve cover body 11, and an oil cap plug hole 10 is provided in the middle of the valve cover body 11; the first support plate 9 and the valve cover body 11 are both located between several lever cylinders 12; the working ends of several lever cylinders 12 are all in contact with the valve cover body 11; the extension and retraction ends of several first cylinders 5 are all fixedly connected with plugs 51, and the other end of several plugs 51 are all conical structures; a pad 101 is installed and connected to the upper end of the base 1, and the second support plate 8 is located on the pad 101.

[0027] Through the above scheme, several cylinders 5 (number one) and 6 (number two) work together. The plug 51 at the working end of cylinder 5 is specially designed so that its shape and size perfectly match the corresponding holes on the valve cover body 11, allowing it to be accurately inserted and seal the holes. At the same time, the telescopic end of cylinder 6 also moves precisely to seal other related holes. Through this series of sealing actions, the actual working condition of the valve cover being effectively sealed when it is installed in the vehicle is successfully simulated, creating a highly realistic test environment for airtightness testing.

[0028] It should be noted that this utility model describes an automated valve cover airtightness testing fixture. In the valve cover airtightness testing process, to achieve efficient and accurate automated testing, the first support plate 9 is precisely matched and manufactured according to the unique lower end outline of the valve cover body 11, ensuring that the valve cover body 11 can be stably and accurately placed on the first support plate 9 during placement, with the two fitting tightly together, laying a solid foundation for subsequent pressing operations. After the valve cover body 11 is accurately in place, several lever cylinders 12 installed on the second support plate 8 are activated. These lever cylinders 12 have been precisely adjusted and arranged to respond to the start command simultaneously and work synchronously. During operation, several lever cylinders... The working end of cylinder 12 is pressed precisely into each connection port on the outer surface of the valve cover body 11 with a uniform and stable force. Through this all-round pressing action, the valve cover body 11 is tightly combined with the first support plate 9, simulating the stress state of the bolt tightening when the valve cover is actually installed on the vehicle, and maximally restoring the sealing conditions under real use scenarios. Then, several first cylinders 5 and second cylinders 6 are started to work together. The plug 51 at the working end of the first cylinder 5 is specially designed so that its shape and size perfectly match the corresponding hole on the valve cover body 11, and can be accurately inserted and sealed. At the same time, the telescopic end of the second cylinder 6 also moves precisely to seal other related holes. Through this series of sealing actions, the actual working condition of the valve cover being effectively sealed in the vehicle state was successfully simulated, creating a highly realistic test environment for airtightness testing. After completing all the above preparations, gas at a specific pressure was introduced into the valve cover body 11 through the air inlet 2. A comprehensive airtightness test of the valve cover body 11 was carried out using professional testing equipment. The entire testing process achieved a high degree of automation, which not only significantly improved work efficiency during production and greatly shortened the testing cycle, but also, because the testing environment highly simulated real working conditions, it could more accurately detect airtightness problems of the valve cover, effectively improving product quality. At the same time, automated testing replaced a large amount of manual operation, greatly reducing the workload of employees and freeing them from tedious and repetitive testing work, allowing them to devote themselves to more creative and valuable work processes.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automated valve cover airtightness testing fixture, comprising a base (1), characterized in that: The base (1) has four fixed support columns (3) at its upper corners. The top plate (4) is fixedly connected to the top of the four support columns (3). Six cylinders (5) are fixedly connected to the top of the top plate (4). The six cylinders (5) are evenly distributed in a straight line. The base (1) has a fixed support frame (7) at its left end. The support frame (7) is an "L" shaped structure. Cylinder (6) is fixedly connected to the upper left end of the support frame (7). Cylinder (6) is arranged with a left-high and right-low structure. A support plate (8) is placed in the middle of the upper end of the base (1). A support plate (9) is installed in the middle of the upper end of the support plate (8). A valve cover body (11) is placed on the upper end of the support plate (9). Several lever cylinders (12) are installed on the upper end of the support plate (8).

2. The automated valve cover airtightness testing fixture according to claim 1, characterized in that: An air inlet (2) is provided on the valve cover body (11), and an oil cap plug hole (10) is provided in the middle of the valve cover body (11).

3. The automated valve cover airtightness testing fixture according to claim 1, characterized in that: The first support plate (9) and the valve cover body (11) are both located between several lever cylinders (12).

4. The automated valve cover airtightness testing fixture according to claim 1, characterized in that: The working ends of several of the lever cylinders (12) are in contact with the valve cover body (11).

5. The automated valve cover airtightness testing fixture according to claim 1, characterized in that: Each of the telescopic ends of several of the first cylinders (5) is fixedly connected with a plug (51), and the other end of each of the plugs (51) is a conical structure.

6. The automated valve cover airtightness testing fixture according to claim 1, characterized in that: A pad (101) is installed and connected to the upper end of the base (1), and the second support plate (8) is located on the pad (101).

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