A weld seam air tightness detection device for an automobile cooling plate

Abstract

The utility model discloses a kind of welding seam air tightness detection equipment for automobile cooling plate, including detection table, the bottom surface of the detection table is fixedly installed with gas storage tank, the inner wall of the gas storage tank is equipped with cavity, the inside fixed setting of the cavity is with electric heating plate, the surface of the gas storage tank is fixedly installed with gas delivery assembly, one end of the gas delivery assembly is rotatably provided with connecting gas pipe.The welding seam air tightness detection equipment for automobile cooling plate, by the setting of gas storage tank, electric heating plate and gas delivery assembly, the connecting end part of automobile cooling plate body is connected with connecting gas pipe, the air in the inside of gas storage tank is heated after electric heating plate is powered on, open air pump, hot air is delivered to automobile cooling plate body by gas delivery pipe, infrared thermal imager body monitors whether the heat distribution of automobile cooling plate body is abnormal, abnormal position is that welding seam leaks, reaches the effect of welding seam air tightness detection to automobile cooling plate body, and leakage point can be found.

Description

Technical Field

[0001] This utility model relates to the field of cooling plate testing technology, specifically to a weld airtightness testing device for automotive cooling plates. Background Technology

[0002] In the automotive manufacturing industry, cooling plates (such as water-cooled plates) are key components in the thermal management systems of new energy vehicles and gasoline vehicles, and their welding quality directly affects the sealing and reliability of the cooling system. If there are airtightness defects in the welds of the cooling plate, it may lead to coolant leakage or gas infiltration, thereby reducing heat dissipation efficiency and even causing system failure. Therefore, weld airtightness testing is a crucial quality control step in the cooling plate production process.

[0003] Traditional leak detection methods mainly include water testing, gas pressure leak detection, or helium mass spectrometry leak detection. Water testing identifies leaks by observing bubbles, but it is inefficient and difficult to pinpoint the exact location. Gas pressure leak detection relies on pressure changes to determine the tightness of the leak, but it cannot visually display the location of the leak. Helium mass spectrometry leak detection is highly accurate, but the equipment is expensive and the operation is complex. Utility Model Content

[0004] The technical problems to be solved by this utility model are as follows: Water detection method determines the leak point by observing bubbles, but it is inefficient and difficult to locate accurately; air pressure leak detection method relies on pressure changes to determine the sealing performance, but it cannot intuitively display the leak location; helium mass spectrometry leak detection has high accuracy, but the equipment is expensive and the operation is complicated.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An airtightness testing device for welds of automotive cooling plates includes a testing platform. An air storage box is fixedly installed on the bottom surface of the testing platform. A cavity is formed in the inner wall of the air storage box. An electric heating plate is fixedly installed inside the cavity. An air supply assembly is fixedly installed on the surface of the air storage box. A connecting air pipe is rotatably connected to one end of the air supply assembly. An automotive cooling plate body is inserted into one end of the connecting air pipe. An infrared thermal imager body is fixedly installed in the middle of the top surface of the testing platform. A support frame is fixedly installed on one side of the top surface of the testing platform. A flipping mechanism is fixedly installed on the surface of the support frame.

[0007] As a further embodiment of this utility model: the gas delivery assembly includes a vacuum pump and a gas delivery pipe. The vacuum pump is fixedly installed on the surface of the gas storage tank. The bottom of the gas delivery pipe is connected to the output end of the vacuum pump, and the input end of the vacuum pump is connected to the interior of the gas storage tank. The gas delivery assembly is used to deliver hot air.

[0008] As a further embodiment of this utility model: the flipping mechanism includes a cylinder, a servo motor and a clamping plate. The cylinder is fixedly installed on the surface of the support frame, the servo motor is fixedly installed at the output end of the cylinder, and the clamping plate is fixedly installed at the output end of the servo motor. The clamping plate is used to clamp the car cooling plate body.

[0009] As a further embodiment of this utility model: a temperature controller is electrically connected to one side of the heating plate, the temperature controller is fixedly installed on the surface of the gas storage box, an air injection port is fixedly provided on the top of the surface of the gas storage box, and a sealing cap is snapped onto one end of the air injection port. The temperature controller is used to control the heating temperature of the heating plate.

[0010] As a further embodiment of this utility model: a sealing gasket is fitted onto one end of the connecting air pipe, the sealing gasket being made of rubber, and the sealing gasket being used to seal the connection between the connecting air pipe and the car cooling plate.

[0011] As a further embodiment of this utility model: an industrial control computer is electrically connected to one side of the infrared thermal imager body, and a support rod is fixedly installed at the bottom of the industrial control computer. One end of the support rod is fixedly connected to a support frame, and the support rod is used to fix the industrial control computer.

[0012] As a further embodiment of this utility model: a positioning frame is rotatably provided at one end of the connecting air tube, and the bottom of the positioning frame is fixedly installed on the top surface of the testing platform. The positioning frame is used to support the connecting air tube.

[0013] The beneficial effects of this utility model are:

[0014] 1. By setting up an air tank, heating plate, and air delivery assembly, the connecting end of the car cooling plate is connected to the connecting air pipe. After the heating plate is powered on, it heats the air inside the air tank. The air pump is turned on, and the hot air is delivered to the car cooling plate through the air delivery pipe. The infrared thermal imager monitors whether the heat distribution of the car cooling plate is abnormal. Abnormal locations indicate leaks in the welds, thus achieving the effect of airtightness detection of the welds of the car cooling plate and locating the leak points.

[0015] 2. By setting up a flipping mechanism, the cylinder is opened, which drives the clamping plate to clamp the car cooling plate. The servo motor drives the clamping plate to rotate, causing the car cooling plate to flip. At the same time, the connecting air pipe rotates at one end of the air supply pipe, achieving the effect of flipping the car cooling plate. This makes it easier for the infrared thermal imager to detect different surfaces of the car cooling plate, resulting in high detection efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the flipping mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the gas transmission component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of the infrared thermal imager of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the industrial control all-in-one computer of this utility model.

[0022] In the diagram: 1. Testing platform; 2. Air storage tank; 3. Heating plate; 4. Air supply assembly; 401. Air pump; 402. Air supply pipe; 5. Connecting air pipe; 6. Car cooling plate; 7. Infrared thermal imager body; 8. Support frame; 9. Tilting mechanism; 901. Cylinder; 902. Servo motor; 903. Clamping plate; 10. Sealing gasket; 11. Industrial control all-in-one computer; 12. Positioning frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5 As shown, a weld airtightness testing device for an automotive cooling plate includes a testing platform 1. An air storage box 2 is fixedly installed on the bottom surface of the testing platform 1. A cavity is opened in the inner wall of the air storage box 2, and an electric heating plate 3 is fixedly installed inside the cavity. An air supply assembly 4 is fixedly installed on the surface of the air storage box 2. Through the arrangement of the air storage box 2, the electric heating plate 3, and the air supply assembly 4, the connecting end of the automotive cooling plate 6 is connected to the connecting air pipe 5. After the electric heating plate 3 is energized, it heats the air inside the air storage box 2. The air pump 401 is turned on, and the hot air is delivered into the automotive cooling plate 6 through the air supply pipe 402. The infrared thermal imager body 7 monitors whether the heat distribution of the automotive cooling plate 6 is abnormal. The abnormal location indicates that the weld is leaking, thus achieving the effect of airtightness testing of the weld of the automotive cooling plate 6 and finding the leak point.

[0025] One end of the air supply assembly 4 is rotatably equipped with a connecting air pipe 5, and one end of the connecting air pipe 5 is inserted into the car cooling plate 6. The infrared thermal imager body 7 is fixedly installed in the middle of the top surface of the detection platform 1. A support frame 8 is fixedly installed on one side of the top surface of the detection platform 1. A flipping mechanism 9 is fixedly installed on the surface of the support frame 8. By setting the flipping mechanism 9, the cylinder 901 is opened, which drives the clamping plate 903 to clamp the car cooling plate 6. The servo motor 902 drives the clamping plate 903 to rotate, so that the car cooling plate 6 flips accordingly. At the same time, the connecting air pipe 5 rotates at one end of the air supply pipe 402, which achieves the effect of driving the car cooling plate 6 to flip. This makes it easier for the infrared thermal imager body 7 to detect different sides of the car cooling plate 6, and the detection efficiency is high.

[0026] like Figure 3 As shown, the gas delivery assembly 4 includes a vacuum pump 401 and a gas delivery pipe 402. The vacuum pump 401 is fixedly installed on the surface of the gas storage tank 2. The bottom of the gas delivery pipe 402 is connected to the output end of the vacuum pump 401, and the input end of the vacuum pump 401 is connected to the interior of the gas storage tank 2.

[0027] The air delivery assembly 4 serves to deliver hot air into the vehicle's cooling plate 6.

[0028] like Figure 2 As shown, the flipping mechanism 9 includes a cylinder 901, a servo motor 902, and a clamping plate 903. The cylinder 901 is fixedly installed on the surface of the support frame 8, the servo motor 902 is fixedly installed at the output end of the cylinder 901, and the clamping plate 903 is fixedly installed at the output end of the servo motor 902.

[0029] The flipping mechanism 9 is designed to flip the car cooling plate 6, making it easier to inspect different locations.

[0030] like Figure 3 As shown, a temperature controller is electrically connected to one side of the heating plate 3. The temperature controller is fixedly installed on the surface of the gas storage box 2. An air injection port is fixedly provided on the top of the surface of the gas storage box 2, and a sealing cap is snapped onto one end of the air injection port.

[0031] The temperature controller is used to control the temperature of the heating plate 3.

[0032] like Figure 2 As shown, a sealing gasket 10 is fitted onto one end of the connecting tube 5, and the sealing gasket 10 is made of rubber.

[0033] The sealing gasket 10 serves to seal the connection port between the air pipe 5 and the car cooling plate 6.

[0034] like Figure 4As shown, an industrial control computer 11 is electrically connected to one side of the infrared thermal imager body 7. A support rod is fixedly installed at the bottom of the industrial control computer 11, and one end of the support rod is fixedly connected to the support frame 8.

[0035] The industrial control all-in-one computer 11 is configured to process the images from the infrared thermal imager body 7.

[0036] like Figure 4 As shown, a positioning frame 12 is rotatably mounted on one end of the connecting air pipe 5, and the bottom of the positioning frame 12 is fixedly installed on the top surface of the testing table 1.

[0037] The positioning bracket 12 serves to support the connecting air tube 5.

[0038] The working principle of this utility model is as follows: The connecting end of the car cooling plate 6 is connected to the connecting air pipe 5. After the electric heating plate 3 is powered on, it heats the air inside the air storage box 2. The air pump 401 is turned on, and the hot air is delivered to the car cooling plate 6 through the air pipe 402. The infrared thermal imager body 7 monitors whether the heat distribution of the car cooling plate 6 is abnormal. If there is an abnormality, that is, a leak in the weld, the air tightness of the weld of the car cooling plate 6 is tested, and the leak point can be found.

[0039] Opening cylinder 901 causes clamping plate 903 to clamp the car cooling plate 6. Servo motor 902 drives clamping plate 903 to rotate, causing car cooling plate 6 to flip. At the same time, connecting air pipe 5 rotates at one end of air pipe 402, achieving the effect of flipping car cooling plate 6. This makes it easier for infrared thermal imager body 7 to detect different surfaces of car cooling plate 6, resulting in high detection efficiency.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weld airtightness testing device for automotive cooling plates, comprising a testing table (1), characterized in that: An air storage box (2) is fixedly installed on the bottom surface of the testing platform (1). A cavity is opened in the inner wall of the air storage box (2). An electric heating plate (3) is fixedly installed inside the cavity. An air supply assembly (4) is fixedly installed on the surface of the air storage box (2). A connecting air pipe (5) is rotatably installed at one end of the air supply assembly (4). A car cooling plate body (6) is inserted into one end of the connecting air pipe (5). An infrared thermal imager body (7) is fixedly installed in the middle of the top surface of the testing platform (1). A support frame (8) is fixedly installed on one side of the top surface of the testing platform (1). A flipping mechanism (9) is fixedly installed on the surface of the support frame (8).

2. The weld airtightness testing equipment for automotive cooling plates according to claim 1, characterized in that, The gas delivery assembly (4) includes a vacuum pump (401) and a gas delivery pipe (402). The vacuum pump (401) is fixedly installed on the surface of the gas storage tank (2). The bottom of the gas delivery pipe (402) is connected to the output end of the vacuum pump (401), and the input end of the vacuum pump (401) is connected to the interior of the gas storage tank (2).

3. The weld airtightness testing equipment for automotive cooling plates according to claim 1, characterized in that, The flipping mechanism (9) includes a cylinder (901), a servo motor (902) and a clamping plate (903). The cylinder (901) is fixedly installed on the surface of the support frame (8), the servo motor (902) is fixedly installed at the output end of the cylinder (901), and the clamping plate (903) is fixedly installed at the output end of the servo motor (902).

4. The weld airtightness testing equipment for automotive cooling plates according to claim 1, characterized in that, A temperature controller is electrically connected to one side of the heating plate (3). The temperature controller is fixedly installed on the surface of the gas storage box (2). An air injection port is fixedly provided on the top of the surface of the gas storage box (2). One end of the air injection port is snapped with a sealing cap.

5. The weld airtightness testing equipment for automotive cooling plates according to claim 1, characterized in that, One end of the connecting air tube (5) is fitted with a sealing gasket (10), and the sealing gasket (10) is made of rubber.

6. The weld airtightness testing equipment for automotive cooling plates according to claim 1, characterized in that, An industrial control computer (11) is electrically connected to one side of the infrared thermal imager body (7). A support rod is fixedly installed at the bottom of the industrial control computer (11), and one end of the support rod is fixedly connected to the support frame (8).

7. The weld airtightness testing equipment for automotive cooling plates according to claim 1, characterized in that, One end of the connecting air pipe (5) is rotatably equipped with a positioning frame (12), and the bottom of the positioning frame (12) is fixedly installed on the top surface of the testing table (1).

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