Leakage detection equipment for front cover assembly of automobile fan actuator

Abstract

The utility model discloses a leak hunting device used for an automobile fan actuator front cover assembly, comprising a leak hunting tool, the leak hunting tool comprises an abutting member, a support assembly, a sealing blowing disc and a telescopic member, the telescopic member is connected on the support assembly, the sealing blowing disc is located at the bottom of the movable end of the telescopic member, the abutting member abuts between the movable end of the telescopic member and a front cover, and the sealing blowing disc is located at the bottom of the movable end of the telescopic member. The abutting piece is used for movably abutting against the front cover when the movable end moves downwards, guiding the abutting piece to abut against the center of the front cover under cooperation of the front cover, and pushing the front cover to be connected with the sealing supporting ring in a sealed mode. The bottom of the leak detection tool is located in the reservoir. The air supply module comprises an air pump and an air supply pipe, and the air pump is connected with the air holes of the sealing air blowing disc through the air supply pipe and used for blowing air between the front cover and the sealing supporting ring which are connected in a sealed mode. The water supply module comprises a first electromagnetic valve and a water pipe, the first electromagnetic valve injects external water towards the top of the front cover through the water pipe, so that the water submerges the top of the front cover, and whether bubbles are generated or not is tested through gas inrush.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive fan actuator testing, in particular to a leak detection device for the front cover assembly of an automotive fan actuator. Background Art

[0002] When the front cover of an automotive actuator is manufactured, it is formed through processes such as welding and finally made into a part including two main parts. One is the front cover with a round hole in the middle, and the other part is a plug-in part. A part of the plug-in part is inserted into the round hole. As a whole, the round hole and the internal plug-in part need to maintain tightness, and the welds around the round hole need to meet the tightness requirements. Therefore, it needs to be detected after manufacturing.

[0003] The current detection device for the front cover of a fan actuator connects the top platform through four rods and sets a cylinder on the top platform to push the product to move in the vertical direction, and manually adjusts the supporting part clamped between the moving end and the front cover. Since the supporting part needs to be manually adjusted repeatedly to ensure accurate abutting position and prevent damage. Due to the intervention of manual labor, the efficiency is low.

[0004] Therefore, there is still a need for a leak detection device for the front cover assembly of an automotive fan actuator to solve the above problems. Summary of the Utility Model

[0005] The utility model provides a leak detection device for the front cover assembly of an automotive fan actuator to solve the above problems.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A leak detection device for the front cover assembly of an automotive fan actuator, comprising:

[0008] A leak detection tooling, the leak detection tooling includes an abutting part, a support assembly, a sealing and blowing disc and a telescopic part. The telescopic part is connected to the support assembly. The sealing and blowing disc is located at the bottom of the movable end of the telescopic part. The abutting part abuts between the movable end of the telescopic part and the front cover. The abutting part is used to actively abut the front cover when the movable end moves downward, and under the cooperation of the front cover, guide the abutting part to abut at the center of the front cover, and push the front cover and the sealing support ring to be sealed and connected;

[0009] A gas supply module, the gas supply module includes an air pump and a gas supply pipe. The air pump is connected to the air holes of the sealing and blowing disc through the gas supply pipe, and is used to blow air between the sealed and connected front cover and the sealing support ring;

[0010] A water supply module, the water supply module includes a second solenoid valve and a water pipe. The second solenoid valve injects water from the outside through the water pipe towards the top of the front cover, so that the water submerges the top of the front cover.

[0011] In one embodiment, the water tank is used to convey water to the top of the support assembly, and then convey the water to the second solenoid valve, and inject the water into the top of the front cover under pressure through the second solenoid valve.

[0012] In one embodiment, it further includes a first solenoid valve and a PLC controller. The first solenoid valve is connected between the air supply pipe and the air pump, and is electrically connected to the PLC controller, and is used to control the start and stop of the air source between the sealing air blowing disc and the front cover.

[0013] In one embodiment, it further includes a position sensor. The position sensor is arranged adjacent to the support assembly and is electrically connected to the PLC controller, and is used to identify the movable end of the telescopic member when it moves downward.

[0014] In one embodiment, it further includes an electromagnetic water valve. The electromagnetic water valve is connected between the second solenoid valve and the water pipe, and is electrically connected to the PLC controller, and is used to control the flow rate of the water sent into the reservoir by the first solenoid valve through the water pipe.

[0015] In one embodiment, a sealing ring is connected to the top of the sealing air blowing disc.

[0016] In one embodiment, an air vent for connecting an external air supply device is provided inside the sealing air blowing disc.

[0017] In one embodiment, an installation groove is provided at the top of the sealing air blowing disc for embedding the sealing ring.

[0018] Compared with the prior art, the beneficial effects of the present utility model at least include:

[0019] A leak detection tooling that can automatically locate is provided. During operation, the abutting member is manually and movably clamped at the bottom movable end of the telescopic member and the reverse side of the front cover assembly. With the cooperation of the reverse side fillet, it is convenient for the guiding member to quickly find the center position and execute the subsequent test procedures, simplifying the time required for leak detection and improving the industrial leak detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the assembly leak detection device according to an embodiment of the present utility model Figure 1 ;

[0021] Figure 2 is a schematic structural diagram of the assembly leak detection device according to an embodiment of the present utility model Figure 2 ;

[0022] Figure 3 is an exploded view of the structure of the leak detection tooling according to an embodiment of the present utility model.

[0023] In the figure: 1. Leak detection tooling; 11. Contact part; 12. Support assembly; 13. Sealing air blowing disc; 14. Telescopic part; 15. Sealing support ring; 16. Ventilation port; 2. Reservoir; 3. Position sensor; 4. First solenoid valve; 5. Front cover; 6. Electromagnetic water valve; 7. Second solenoid valve. Detailed implementation mode

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote the same or similar structures, and thus their repeated description will be omitted.

[0025] In this utility model, the words expressing position and direction are described with reference to the accompanying drawings as examples, but can be changed according to needs, and all changes made are included in the protection scope of this utility model.

[0026] Referring to Figures 1-3 , this utility model provides a leak detection device for the front cover 5 assembly of an automotive fan actuator, including:

[0027] Leak detection tooling 1, the leak detection tooling 1 includes a contact part 11, a support assembly 12, a sealing air blowing disc 13 and a telescopic part 14. The telescopic part 14 is connected to the support assembly 12. The sealing air blowing disc 13 is located at the bottom of the movable end of the telescopic part 14. The contact part 11 abuts between the movable end of the telescopic part 14 and the front cover 5. The contact part 11 is used to actively abut the front cover 5 when the movable end moves downward, and under the cooperation of the front cover 5, guide the contact part 11 to abut at the center of the front cover 5, and push the front cover 5 and the sealing support ring 15 to be sealed and connected. Among them, the contact part 11 is, for example, a barrel-shaped structure with a cylindrical shape. When connecting, one end abuts against the bottom of the movable end of the telescopic part 14, and the other end slides and abuts against the reverse side of the front cover 5. When abutting, the other end of the contact part 11 slides and abuts against the reverse side of the front cover 5, and is guided by the chamfer on the reverse side to abut at the circular position for auxiliary positioning, without manual adjustment, simplifying the operation steps. Among them, the telescopic part 14 is, for example, a telescopic cylinder.

[0028] Reservoir 2, the reservoir 2 is annularly surrounded at the top of the leak detection tooling 1.

[0029] Air supply module, the air supply module includes an air pump and an air supply pipe. The air pump is connected to the air holes of the sealing air blowing disc 13 through the air supply pipe for blowing air between the sealed and connected front cover 5 and the sealing support ring 15.

[0030] Water supply module. The water supply module includes a second solenoid valve 7 and a water pipe. The second solenoid valve 7 controls the water from the outside to be injected into the reservoir 2 through the water pipe, so that the water submerges the top of the front cover 5. Under the control of the second solenoid valve 7, the water forms a water film covering the top of the front cover 5 due to the height difference.

[0031] After the movable end of the telescopic member 14 abuts against the front cover 5 through the abutting member 11 and is hermetically connected by the sealing air blowing disc 13, the water supply module injects water into the reservoir 2 to form a water film on the top of the front cover 5. Then, the air supply module blows air between the sealing air blowing disc 13 and the front cover 5 to observe whether there are bubbles on the front cover 5. If there are bubbles, the airtightness is unqualified.

[0032] In one embodiment, it further includes a water tank, which is used to transport water to the second solenoid valve 7 and control the injection to the top of the front cover 5 through the second solenoid valve 7, so as to form a covering water film on the top of the front cover 5.

[0033] In one embodiment, it further includes a first solenoid valve 4 and a PLC controller (not shown in the figure). The first solenoid valve 4 is connected between the air supply pipe (not shown in the figure) and the air pump (not shown in the figure) and is electrically connected to the PLC controller, and is used to control the start and stop of the air source between the sealing air blowing disc 13 and the front cover 5. The PLC controller is electrically connected to the first solenoid valve 4 to control the air pump to automatically inject gas into the sealing air blowing disc 13, and the automatic intelligent control simplifies the control method.

[0034] In one embodiment, it further includes a position sensor 3, which is arranged adjacent to the support assembly 12 and is electrically connected to the PLC controller, and is used to identify the movable end of the telescopic member 14 during downward movement, and intelligently synchronously control the first solenoid valve 4 and the second solenoid valve 7 through the PLC controller, simplifying the operation steps.

[0035] In one embodiment, it further includes an electromagnetic water valve 6, which is connected between the reservoir 2 and the water pipe and is electrically connected to the PLC controller, and is used to control the flow rate of the water in the reservoir 2 sent to the top of the front cover 5 by the water pipe by controlling the electromagnetic water valve 6. In actual use, the water flow size controlled by the electromagnetic water valve 6 is adjustable to meet different water flow coverage requirements.

[0036] In one embodiment, a sealing ring is connected to the top of the sealing air blowing disc 13. The sealing ring can be a rubber ring or a silica gel ring.

[0037] In one embodiment, an air vent 16 connecting to an external air supply device is opened inside the sealing air blowing disc 13.

[0038] In one embodiment, an installation groove is formed at the top of the sealing air blowing disc 13 for embedding the sealing ring. By connecting the installation groove with a stable structure to the sealing ring, the sealing connection with the front cover 5 can be stabilized, avoiding misjudgment and missed judgment of airtightness during connection.

[0039] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Without departing from the principles and purposes of the present invention, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A leak detection device for a front cover assembly of an automobile fan actuator, characterized in that: include: A leak detection tool, the leak detection tool comprising an abutment, a support assembly, a sealing air blowing disc and a telescopic member, the telescopic member is connected to the support assembly, the sealing air blowing disc is located at the bottom of the movable end of the telescopic member, the abutment abuts between the movable end of the telescopic member and the front cover, the abutment abuts the front cover when the movable end moves downward, and guides the abutment abuts the center of the front cover with the cooperation of the front cover, so as to push the front cover and the sealing support ring to be sealed and connected; An air supply module, the air supply module comprising an air pump and an air supply pipe, the air pump being connected to the air holes of the sealed air blowing disk through the air supply pipe, and being used for blowing air between the sealed connected front cover and the sealing support ring; The water supply module comprises a second solenoid valve and a water pipe. The second solenoid valve injects external water toward the top of the front cover through the water pipe so that the water covers the top of the front cover.

2. The leak detection device according to claim 1, characterized in that: It also includes a water tank, which is located on the top of the support assembly and is used to transport water to the second solenoid valve and control the injection of water into the top of the front cover through the second solenoid valve.

3. The leak detection device according to claim 2, characterized in that: It also includes a first solenoid valve and a PLC controller. The first solenoid valve is connected between the air supply pipe and the air pump and is electrically connected to the PLC controller for controlling the start and stop of the air source between the sealed blowing disk and the front cover.

4. The leak detection device according to claim 3, characterized in that: It also includes a position sensor, which is arranged adjacent to the support assembly and electrically connected to the PLC controller for identifying the active end of the telescopic member when it moves downward.

5. The leak detection device according to claim 3, characterized in that: It also includes an electromagnetic water valve, which is connected between the second electromagnetic valve and the water pipe and electrically connected to the PLC controller to control the flow rate of water sent by the second electromagnetic valve to the water reservoir through the water pipe.

6. The leak detection device according to claim 1, characterized in that: The top of the sealed air blowing plate is connected with a sealing ring.

7. The leak detection device according to claim 1, characterized in that: The sealed air blowing disc is provided with an air vent connected to an external air supply device.

8. The leak detection device according to claim 6, characterized in that: The top of the sealing air blowing disc is provided with a mounting groove for embedding the sealing ring.

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