Sealing mechanism for detecting air tightness of shell cavity

Abstract

The utility model relates to the technical field of sealing shell equipment, and discloses a sealing mechanism for detecting the air tightness of a shell cavity, which comprises a support frame, a mounting plate is mounted on the top surface of the support frame, a positioning plate is mounted on the top surface of the mounting plate, a plurality of positioning pins are mounted on the top surface of the positioning plate, and the positioning pins are mounted on the top surface of the positioning plate. A plurality of pressing assemblies are arranged on the bottom face of the supporting frame, and a plurality of first sealing assemblies and a plurality of second sealing assemblies are arranged on the top face of the mounting plate. The first sealing assembly and the second sealing assembly are arranged, sealing structures of different shapes are adopted to conduct sealing treatment on the shell, the sealing effect is ensured, and then the accuracy of the detection effect of the shell cavity is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealed housing equipment technical field, specifically is a kind of sealing mechanism for shell cavity air tightness detection. BACKGROUND

[0002] Automobile engine is the device for providing power for automobile, is the heart of automobile, determines the power performance, economy, stability and environmental protection of automobile.According to the different power sources, automobile engine can be divided into diesel engine, gasoline engine, electric car motor and hybrid power etc..Among them, the shell is one of the essential components of automobile engine, and under normal circumstances, the air tightness of shell cavity needs to be detected after shell processing is completed.

[0003] However, in the prior art, the sealing effect of the shell is not good, and air leakage may occur, thereby affecting the accuracy of the detection.

[0004] Therefore, based on the above technical problems, it is necessary for the person skilled in the art to develop a sealing mechanism for shell cavity air tightness detection. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a sealing mechanism for shell cavity air tightness detection to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A sealing mechanism for shell cavity air tightness detection technical scheme, comprising a support frame, the top surface of the support frame is provided with a mounting plate, the top surface of the mounting plate is provided with a positioning plate, the top surface of the positioning plate is provided with a plurality of positioning pins, the bottom surface of the support frame is provided with a plurality of pressing assemblies, and the top surface of the mounting plate is provided with a plurality of sealing assemblies one and a plurality of sealing assemblies two.

[0008] As a preferred technical scheme, the pressing assembly comprises a cylinder one, the cylinder one is vertically installed on the bottom surface of the support frame, and a positioning column is installed on the piston rod of the cylinder one.

[0009] As a preferred technical scheme, the top surface of the positioning plate is provided with a limiting plate, and a plurality of positioning blocks are installed on the top surface of the limiting plate.

[0010] As a preferred technical scheme, the sealing assembly one comprises a fixed block one, the fixed block one is installed on the top surface of the positioning plate, the top surface of the fixed block one is provided with three cylinders two, the piston rod of two of the cylinders two is provided with a connecting block, the inner side of the connecting block is provided with a sealing ring one, and the piston rod of the other cylinder two is provided with a sealing column one.

[0011] As a preferred technical solution, the bottom surface of the fixed block one is provided with an L-shaped groove one.

[0012] As a preferred technical solution, the sealing assembly two comprises a fixed block two, the fixed block two is installed on the top surface of the positioning plate, the top surface of the fixed block two is provided with two air cylinders three, the piston rod of one of the air cylinders three is provided with a sealing cone, and the piston rod of the other air cylinder three is provided with a sealing column two.

[0013] As a preferred technical solution, the top surface of the limiting plate is provided with a plurality of limiting strips at intervals, a channel is formed between the limiting strips and the positioning blocks, and a sealing gasket is arranged in the channel.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] (1) the utility model discloses a sealing mechanism for shell cavity airtightness detection, and sealing assembly one and sealing assembly two are arranged, different shapes of sealing structures are used to seal the shell, the sealing effect is guaranteed, and then the accuracy of the detection effect of the shell cavity is guaranteed.

[0016] (2) the utility model discloses a sealing mechanism for shell cavity airtightness detection, and the whole sealing process is carried out in an automatic mode, and the staff is not needed to participate, which reduces the staff's work load and improves the efficiency. DRAWINGS

[0017] Figure 1 It is a kind of sealing mechanism for the whole structure schematic diagram of shell cavity airtightness detection.

[0018] In the figure, 1, support frame;2, mounting plate;3, positioning plate;4, positioning pin;5, air cylinder one;6, positioning column;8, limiting plate;9, positioning block;10, fixed block one;11, air cylinder two;12, sealing ring one;13, sealing column one;14, L-shaped groove one;15, fixed block two;16, air cylinder three;17, sealing cone;18, sealing column two;19, limiting strip;20, sealing gasket. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of each aspect of the utility model will be described in detail below, in order to make the purpose, technical scheme and advantages of the utility model more clear and clear, the utility model is further described in detail below in combination with the drawings and specific embodiments. For those skilled in the art, the utility model can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the utility model by showing examples of the utility model.

[0020] As Figure 1 shown, the utility model provides a kind of sealing mechanism technical scheme for shell cavity airtightness detection: including support frame 1, support frame 1 is installed in the position of being set in advance, installation plate 2 is installed on the top surface of support frame 1, the shape of installation plate 2 is cuboid type, installation plate 2 is horizontally arranged, positioning plate 3 is installed on the top surface of installation plate 2, the shape of positioning plate 3 is same with the shape of installation plate 2, and, positioning plate 3 and installation plate 2 are mutually parallel, four positioning pins 4 are installed on the top surface of positioning plate 3, when the shell of processing is placed on four positioning pins 4 and is positioned, reduce the spontaneous movement condition of shell to be processed.

[0021] In the embodiment, a plurality of pressing assemblies are provided on the bottom surface of the support frame 1, which press the shell to reduce the spontaneous movement of the shell during processing. One of the pressing assemblies includes a cylinder 5 vertically installed on the bottom surface of the support frame 1, and a positioning column 6 is installed on the piston rod of the cylinder 5. When the shell needs to be pressed, the cylinder 5 is started, and the piston rod of the cylinder 5 drives the positioning column 6 to move vertically. The positioning column 6 moves to the surface of the shell and fixes the shell.

[0022] In the embodiment, to further reduce the spontaneous movement of the shell, a limiting plate 8 is provided on the top surface of the positioning plate 3, and a plurality of positioning blocks 9 are installed on the top surface of the limiting plate 8. The shell is located on the plurality of positioning blocks 9, and the plurality of positioning blocks 9 and the plurality of positioning pins 4 form a complementary effect to reduce the horizontal movement of the shell.

[0023] In the embodiment, a plurality of limiting strips 19 are provided on the top surface of the limiting plate 8, and a channel is formed between the plurality of limiting strips 19 and the positioning blocks 9. A sealing gasket 20 is provided in the channel to seal the cavity of the shell and ensure the detection result.

[0024] In the embodiment, a plurality of sealing assemblies one and a plurality of sealing assemblies two are provided on the top surface of the installation plate 2. The plurality of sealing assemblies one and the plurality of sealing assemblies two seal the shell, and then gas is delivered into the cavity of the shell to detect whether the shell leaks.

[0025] The sealing assembly one includes a fixed block one 10 installed on the top surface of the positioning plate 3, three air cylinders two 11 are installed on the top surface of the fixed block one 10, the piston rod of two air cylinders two 11 is provided with a connecting block, the inner side of the connecting block is provided with a sealing ring one 12, and the piston rod of the other air cylinder two 11 is provided with a sealing column one 13; when the shell needs to be sealed, the three air cylinders two 11 are started at the same time, and the sealing ring one 12 and the sealing column one 13 driven by the piston rods of the three air cylinders two 11 are used for sealing the gas outlet of the shell.

[0026] The bottom surface of the fixed block one 10 is provided with an L-shaped groove one 14, the L-shaped groove one 14 is just clamped on the positioning plate 3, and the positioning plate 3 limits the horizontal direction of the fixed block one 10.

[0027] In the embodiment, the sealing assembly two includes a fixed block two 15 installed on the top surface of the positioning plate 3, two air cylinders three 16 are installed on the top surface of the fixed block two 15, the piston rod of one air cylinder three 16 is provided with a sealing cone 17, and the piston rod of the other air cylinder three 16 is provided with a sealing column two 18; when the shell needs to be sealed, the two air cylinders three 16 are started, the piston rods of the two air cylinders three 16 drive the sealing cone 17 and the sealing column two 18 to move, and the sealing column two 18 and the sealing cone 17 seal the shell, thereby ensuring the detection effect of the sealing property of the shell.

[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0029] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0030] In the utility model, unless another definite provision and limitation, the term "mount", "set", "connect", "fix", "screw" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element's mutual action relation, unless another definite limitation, for ordinary skill in the art person, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0031] According to the embodiments of the utility model as described above, these embodiments do not describe all the details, and are not limited to the specific embodiments of the utility model. Obviously, according to the above description, many modifications and changes can be made. The description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that those skilled in the art can well utilize the utility model and make modifications based on the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sealing mechanism for detecting the airtightness of a housing cavity, characterized in that, The system includes a support frame (1), a mounting plate (2) is mounted on the top surface of the support frame (1), a positioning plate (3) is mounted on the top surface of the mounting plate (2), a plurality of positioning pins (4) are mounted on the top surface of the positioning plate (3), a plurality of clamping components are provided on the bottom surface of the support frame (1), and a plurality of sealing components I and a plurality of sealing components II are provided on the top surface of the mounting plate (2).

2. The sealing mechanism for detecting the airtightness of a housing cavity according to claim 1, characterized in that: The clamping assembly includes a cylinder (5), which is vertically mounted on the bottom surface of the support frame (1), and a positioning pin (6) is mounted on the piston rod of the cylinder (5).

3. The sealing mechanism for detecting the airtightness of a housing cavity according to claim 1, characterized in that: The top surface of the positioning plate (3) is provided with a limiting plate (8), and multiple positioning blocks (9) are installed on the top surface of the limiting plate (8).

4. The sealing mechanism for detecting the airtightness of a housing cavity according to claim 1, characterized in that: The sealing assembly includes a fixing block (10) which is mounted on the top surface of the positioning plate (3). Three cylinders (11) are mounted on the top surface of the fixing block (10). Connecting blocks are mounted on the piston rods of two of the cylinders (11). A sealing ring (12) is mounted on the inner side of the connecting block. A sealing column (13) is mounted on the piston rod of the other cylinder (11).

5. A sealing mechanism for detecting the airtightness of a housing cavity according to claim 4, characterized in that: The bottom surface of the fixing block 1 (10) is provided with an L-shaped groove 1 (14).

6. A sealing mechanism for detecting the airtightness of a housing cavity according to claim 1, characterized in that: The sealing assembly 2 includes a fixing block 2 (15), which is installed on the top surface of the positioning plate (3). Two cylinders 3 (16) are installed on the top surface of the fixing block 2 (15). A sealing cone (17) is installed on the piston rod of one of the cylinders 3 (16), and a sealing column 2 (18) is installed on the piston rod of the other cylinder 3 (16).

7. A sealing mechanism for detecting the airtightness of a housing cavity according to claim 3, characterized in that: The top surface of the limiting plate (8) is provided with a plurality of limiting strips (19) spaced apart, and a channel is formed between the plurality of limiting strips (19) and the positioning block (9), and a sealing gasket (20) is provided in the channel.

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