Automobile oil seal aluminum gasket sealing performance detection device

Abstract

The utility model discloses an automobile oil seal aluminum gasket sealing performance detection device comprising a rack, a detection bench is arranged on the rack, and a valve oil seal is arranged on the detection bench; the top of the rack is provided with a detection mechanism, the output end of the detection mechanism is provided with a connector, the connector is in interference connection with the valve oil seal, and the size of the connector can be selectively set; and a main control device is arranged on one side of the rack. According to the device, the size of the connector can be selectively set, and under the synergistic effect of the driving assembly, the connectors of different sizes can be conveniently disassembled and assembled so as to adapt to sealing performance detection of valve oil seals of different sizes; the sealing performance of the valve oil seal can be detected according to the air pressure change in the sealing cover through a pressure sensor in the detection mechanism and matching with the main control device.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, specifically to a device for testing the sealing performance of automotive oil seal aluminum gaskets. Background Technology

[0002] In automotive powertrain systems, valve stem seals are critical components, and their sealing performance directly affects the reliability of core components such as engines and transmissions.

[0003] Currently, the sealing performance of oil seals is mostly tested manually, using magnifying glasses and lights to visually inspect for cracks. This method is difficult to implement. Furthermore, some equipment used for testing valve stem seals cannot meet the sealing performance requirements of different types of oil seals, resulting in low testing efficiency. Utility Model Content

[0004] The main objective of this invention is to provide a device for testing the sealing performance of automotive oil seal aluminum gaskets, in order to solve the aforementioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the sealing performance of automotive oil seal aluminum gaskets, comprising a frame, a testing platform on the frame, on which valve stem seals are placed; a testing mechanism is provided on the top of the frame, and a connector is provided at the output end of the testing mechanism, the connector being interference-fitted with the valve stem seal, the size of the connector being selectively set; a main control device is provided on one side of the frame.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the detection mechanism includes an injection box, the output end of the injection box is provided with an injection pipe, and the injection pipe is provided with a solenoid valve; one end of the injection pipe is provided with a sealing cover, and the inner wall of the sealing cover is provided with a pressure sensor; the bottom of the sealing cover is provided with a connecting pipe, and the bottom end of the connecting pipe is interference-fitted with a connector; a drive assembly is provided on one side of the connector.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the driving component includes a mounting block, the mounting block is provided with a sliding groove, a slider is provided in the sliding groove, a lead screw is provided on the slider, and a drive motor is provided at one end of the lead screw; a first connecting rod is hinged to the front end of the slider, a second connecting rod is hinged to one end of the first connecting rod, a cylindrical rod is provided at one end of the second connecting rod, and a fixing cylinder is provided at one end of the cylindrical rod.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the outer periphery of the fixed cylinder is provided with a through mounting hole, and the outer wall of the connector is provided with a fixing groove; the diameter of the mounting hole and the groove size of the fixing groove are both adapted to the cylindrical rod body.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the frame is further provided with an electric actuator, the output end of which is fixedly connected to the top of the mounting block.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: sealing rings can be detachably installed at the connection positions of the connector and the valve stem seal and the connecting pipe.

[0011] The beneficial effects of this utility model are as follows: the size of the connector in this device can be selectively set, and with the synergistic effect of the drive component, it is easy to disassemble and assemble connectors of different sizes to adapt to the sealing performance testing of valve stem seals of different sizes; through the pressure sensor in the detection mechanism and matched with the main control device, the sealing performance of the valve stem seal can be detected according to the air pressure change in the sealing cover. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is the utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0014] Figure 3 This is a structural schematic diagram of the connector and the fixing cylinder in this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0016] See attached diagram. Figures 1 to 3 This embodiment of an automotive oil seal aluminum gasket sealing performance testing device includes a frame 1, a testing platform 10 on the frame 1, and a valve stem seal 2 placed on the testing platform 10; a testing mechanism is provided on the top of the frame 1, and a connector 3 is provided at the output end of the testing mechanism. The connector 3 is interference-fitted with the valve stem seal 2, and the size of the connector 3 can be selectively set; a main control device 4 is provided on one side of the frame 1.

[0017] Furthermore, the testing mechanism includes an air injection box 5, an air injection pipe 50 at the output end of the air injection box 5, and a solenoid valve 51 on the air injection pipe 50; a sealing cover 6 at one end of the air injection pipe 50, and a pressure sensor on the inner wall of the sealing cover 6; a connecting pipe 60 at the bottom of the sealing cover 6, and an interference fit between the bottom end of the connecting pipe 60 and the connector 3; and a drive assembly on one side of the connector 3.

[0018] Furthermore, the drive assembly includes a mounting block 7, a sliding groove 70 on the mounting block 7, a slider 71 inside the sliding groove 70, a lead screw 72 on the slider 71, and a drive motor at one end of the lead screw 72; a first connecting rod 73 is hinged to the front end of the slider 71, a second connecting rod 74 is hinged to one end of the first connecting rod 73, a cylindrical rod is provided at one end of the second connecting rod 74, and a fixing cylinder 75 is provided at one end of the cylindrical rod.

[0019] Furthermore, the outer periphery of the fixed cylinder 75 is provided with a through mounting hole 750, and the outer wall of the connector 3 is provided with a fixing groove 30; the diameter of the mounting hole 750 and the groove size of the fixing groove 30 are both adapted to the cylindrical rod body.

[0020] Furthermore, the frame 1 is also equipped with an electric actuator 8, the output end of which is fixedly connected to the top of the mounting block 7. The electric actuator 8 can drive the mounting block 7 to move downward, so that the connector 3 can be connected to the valve stem seal 2.

[0021] Furthermore, sealing rings can be detachably installed at the connection points of connector 3, valve oil seal 2, and connecting pipe 60 to ensure the sealing performance at the connection points during testing.

[0022] The working principle of this device is as follows: The main control device 4 controls the air injection box 5 to work and injects air into the sealing cover 6 through the air injection pipe 50. The pressure sensor will display the air pressure inside the sealing cover 6 in real time on the display screen of the main control device 4 in the form of a numerical value. After a certain air pressure is generated, the air injection stops and the solenoid valve 51 is closed to prevent the gas inside the sealing cover 6 from escaping. By observing whether the air pressure value displayed on the main control device 4 decreases, it can be determined whether the air tightness of the valve oil seal 2 is qualified.

[0023] When it is necessary to replace the connector 3 to test valve stem seals 2 of different models and sizes, the drive motor drives the lead screw 72 to rotate, causing the slider 71 to move up and down in the slide groove 70. When the slider 71 moves down, it drives the first connecting rod 73 to move, which in turn drives the second connecting rod 74 to move. The second connecting rod 74 drives the cylindrical rod to slowly slide out of the fixing groove 30 and the mounting hole 750. At this time, the connector 3 is released from the fixation. Then, the sealing ring is removed, and the connector 3 is pulled out for replacement. After the replacement is completed, the drive assembly can continue to drive the cylindrical rod to insert into the mounting hole 750 and the fixing groove 30 to fix the connector 3.

[0024] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A device for testing the sealing performance of automotive oil seal aluminum gaskets, characterized in that: The utility model provides a valve oil seal detection device, including frame, be equipped with detection platform on the frame, the detection platform places valve oil seal, the top of frame is equipped with detection mechanism, the output of detection mechanism is equipped with connecting head, and the connecting head is connected between valve oil seal and is in interference, and the size of connecting head can be selectively set, one side of frame is equipped with main control device.

2. The device for detecting the sealing performance of an aluminum gasket of an automobile oil seal according to claim 1, characterized in that: The detection mechanism includes a gas injection tank, an output end of the gas injection tank is provided with a gas injection pipe, and an electromagnetic valve is arranged on the gas injection pipe; one end of the gas injection pipe is provided with a sealing cover, a pressure sensor is arranged on the inner wall of the sealing cover; the bottom of the sealing cover is provided with a communication pipe, and the bottom end of the communication pipe is connected with the connecting head in interference; one side of the connecting head is provided with a driving assembly.

3. The device for detecting the sealing performance of an aluminum gasket of an automobile oil seal according to claim 2, characterized in that: The driving assembly includes a mounting block, a sliding groove is arranged on the mounting block, a sliding block is arranged in the sliding groove, a lead screw is arranged on the sliding block, and a driving motor is arranged at one end of the lead screw; a first connecting rod is hingedly connected to the front end of the sliding block, a second connecting rod is hingedly connected to one end of the first connecting rod, a cylindrical rod body is arranged at one end of the second connecting rod, and a fixing cylinder is arranged at one end of the cylindrical rod body.

4. The device for detecting the sealing performance of an aluminum gasket of an automobile oil seal according to claim 3, characterized in that: A through mounting hole is arranged on the outer periphery of the fixing cylinder, and a fixing groove is arranged on the outer wall of the connecting head; the hole diameter of the mounting hole and the size of the groove opening of the fixing groove are matched with the cylindrical rod body.

5. The device for detecting the sealing performance of an aluminum gasket of an automobile oil seal according to claim 4, characterized in that: An electric push rod is further arranged on the frame, and the output end of the electric push rod is fixedly connected with the top of the mounting block.

6. The device for detecting the sealing performance of an aluminum gasket of an automobile oil seal according to claim 5, characterized in that: A sealing ring is detachably arranged at the connecting position of the connecting head and the valve oil seal and the communication pipe.

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