An air tightness testing operation tool

Abstract

This utility model relates to the field of airtightness testing technology for automotive exterior lights, specifically a tooling for reducing airtightness testing operations. It includes a support base plate, an airtightness testing product, and clamping clamps. A clamping clamp for fixing the airtightness testing product is mounted on top of the support base plate. The clamping clamp includes a clamping platform fixed to the support base plate by bolts. The clamping platform has a groove inside that partially adapts to the airtightness testing product for placing it. A fixing seat is fixed to one side of the top of the clamping platform by bolts. A clamping handle is movably connected to one side of the fixing seat via a pin. The clamping handle has a "Y"-shaped structure. A clamping arm is movably connected to the top of the fixing seat via a pin. This utility model features an integrated design of the air pipe connector and clamping head, combined with a sealing ring and a bottom sealing gasket, forming a multi-layer sealing structure. This effectively prevents air source leakage, ensures stable test pressure, and reduces the risk of misjudgment due to seal failure.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology for automotive exterior lights, specifically a tooling for reducing airtightness testing operations. Background Technology

[0002] In the manufacturing process of automotive exterior lights, airtightness is one of the core quality indicators, and airtightness testing is required to verify whether the product has any potential leakage risks. In the traditional airtightness testing process, the product to be tested must first be fixed with special tooling, and then an additional independent air inlet connector must be connected to the product's air vent before pressurized air is introduced for testing.

[0003] This method has the following problems: (1) A separate air connection connector is required, which increases the cost of parts and the complexity of assembly; (2) The sealing performance of the additional air connector to the product is difficult to guarantee. The test results are inaccurate due to mismatch of the connector or failure of the seal, which reduces the reliability of the test.

[0004] To address the aforementioned problems, we propose a tooling solution that reduces the complexity of airtightness testing operations. Utility Model Content

[0005] The purpose of this invention is to provide a tooling for reducing the operation of airtightness testing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A tooling for reducing the operation of airtightness testing includes: The support base plate, the airtightness test product, and the clamping clamp are mounted on top of the support base plate for fixing the airtightness test product. The clamping pliers include: A clamping platform is fixed to the support base plate by bolts. The inside of the clamping platform has a groove that is partially adapted to the airtightness test product for placing the airtightness test product. A fixed base is fixed to one side of the top of the clamping table by bolts, and a clamping handle is movably connected to one side of the fixed base by a pin. The clamping handle has a "Y" shaped structure, and a clamping arm is movably connected to the top of the fixed base by a pin.

[0007] Preferably, a Y-shaped connecting rod is connected inside the clamping handle via a pin. One end of the Y-shaped connecting rod is movably connected to the clamping arm via a pin. The clamping arm passes through the inside of the clamping handle. The clamping handle is movably connected to the clamping arm via the Y-shaped connecting rod. Both the clamping handle and the clamping arm are movably connected to the fixed base.

[0008] Preferably, a clamping head is installed at one end of the clamping arm, and an air pipe connector is threadedly connected to the top of the clamping head and a sealing ring is embedded therein. An air pipe is connected to the top of the air pipe connector.

[0009] Preferably, a sealing gasket is adhered to the bottom of the clamping head. The sealing gasket is a silicone gasket or a fluororubber gasket, used to achieve a seal between the clamping head and the airtightness test product during clamping.

[0010] Preferably, the air pipe is equipped with an exhaust valve, which is used to release the pressure inside the airtightness test product after the test is completed.

[0011] Preferably, the exhaust valve is a manual shut-off valve or an electromagnetic shut-off valve.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention integrates an air pipe connector into the clamping head, eliminating the need for an additional independent air connection connector. This reduces the steps of "connecting the connector after fixing the product," shortens the single test cycle, and improves test efficiency.

[0013] The integrated design of the air pipe connector and the compression head in this invention, together with the sealing ring and the bottom sealing gasket, forms a multi-seal structure, which effectively avoids air source leakage, ensures stable test pressure, and reduces the risk of misjudgment due to seal failure.

[0014] The grooves in this invention can be designed to be adjusted according to the shape of different models of automotive exterior lights. The material of the sealing gasket and the type of exhaust valve can be flexibly selected to adapt to various testing scenarios and product requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the clamping pliers of this utility model; Figure 4 This is a side view of the clamping pliers of this utility model.

[0016] In the picture: 1. Support base plate; 2. Air tightness testing product; 3. Clamping clamps; 301. Clamping table; 302. Groove; 303. Fixing base; 304. Clamping head; 305. Clamping handle; 306. Clamping arm; 4. Tracheal connector; 5. Tracheal tube. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 A tooling for reducing the operation of airtightness testing includes: Support base plate 1, airtightness test product 2, clamping clamp 3. Support base plate 1 provides stable support for the entire fixture, ensuring that the fixture does not shift during the test. The clamping clamp 3 for fixing the airtightness test product 2 is installed on the top of support base plate 1. Clamping clamp 3 includes: The clamping table 301 is fixed to the support base plate 1 by bolts. The clamping table 301 is fixed to the support base plate 1 by bolts, which is firmly connected and easy to disassemble and maintain. The clamping table 301 has a groove 302 that is partially adapted to the air tightness test product 2. The groove 302 is used to place the air tightness test product 2. The shape and size of the groove 302 are designed according to the shape of the exterior lamp of the car to be tested. It can quickly position the air tightness test product 2 and prevent the product from shifting during the test. A fixed seat 303 is fixed to one side of the top of the clamping table 301 by bolts. A clamping handle 305 is movably connected to one side of the fixed seat 303 by a pin. The clamping handle 305 has a "Y" shaped structure. The "Y" shaped structure can distribute the operating force, making it easier for the operator to drive the clamping action with less effort. A clamping arm 306 is movably connected to the top of the fixed seat 303 by a pin.

[0019] The inside of the clamping handle 305 is connected to a Y-shaped connecting rod via a pin. One end of the Y-shaped connecting rod is movably connected to the clamping arm 306 via a pin. The clamping arm 306 passes through the inside of the clamping handle 305. The clamping handle 305 is movably connected to the clamping arm 306 via the Y-shaped connecting rod. Both the clamping handle 305 and the clamping arm 306 are movably connected to the fixed base 303. This structure forms a linkage transmission mechanism. When the clamping handle 305 is pulled down, the Y-shaped connecting rod can simultaneously drive the clamping arm 306 to rotate around the pin of the fixed base 303, realizing the precise pressing down and lifting of the clamping arm 306.

[0020] One end of the clamping arm 306 is equipped with a clamping head 304. The top of the clamping head 304 is connected to an air pipe connector 4 by a thread and a sealing ring is embedded therein. The top of the air pipe connector 4 is connected to an air pipe 5. The threaded connection facilitates the replacement and maintenance of the air pipe connector 4. The sealing ring can ensure the sealing of the connection between the air pipe connector 4 and the clamping head 304 and prevent air leakage from affecting the test results.

[0021] A sealing gasket is bonded to the bottom of the clamping head 304. The sealing gasket is a silicone gasket or a fluororubber gasket, which is used to achieve a seal between the clamping head 304 and the airtightness test product 2 during clamping. The silicone gasket has good elasticity and aging resistance, while the fluororubber gasket has excellent high temperature resistance and oil resistance. The appropriate sealing gasket can be selected according to the test environment and product material to ensure a complete seal between the clamping head 304 and the airtightness test product 2 during clamping.

[0022] The air pipe 5 is equipped with an exhaust valve, which is used to release the internal pressure of the airtightness test product 2 after the test is completed. The exhaust valve is either a manual shut-off valve or an electromagnetic shut-off valve. After the test is completed, opening the exhaust valve can quickly release the internal pressure of the airtightness test product 2, making it easy for operators to remove the product. The manual shut-off valve is low in cost and intuitive to operate, while the electromagnetic shut-off valve can achieve automated control and adapt to the needs of different production lines.

[0023] Working principle: First, fix the clamping table 301 to the preset position on the support base plate 1 with bolts, ensuring that the clamping table 301 is horizontal and not loose; install the fixing seat 303 on one side of the top of the clamping table 301 with bolts, ensuring the verticality of the fixing seat 303; connect the Y-shaped clamping handle 305, Y-shaped connecting rod, and clamping arm 306 to the fixing seat 303 in sequence with pins, adjust the movement clearance of each component to ensure that the clamping arm 306 can rotate smoothly when the clamping handle 305 is turned; install the clamping head 304 at the end of the clamping arm 306, connect the air pipe connector 4 to the top of the clamping head 304 with threads, and embed a sealing ring; attach a silicone sealing gasket to the bottom of the clamping head 304; connect one end of the air pipe 5 to the air pipe connector 4, and connect the other end to an external pressurized air source; install a manual shut-off valve in the middle of the air pipe 5.

[0024] Then, place the automotive exterior light to be tested into the groove 302 of the clamping table 301, ensuring that the product is completely fitted into the groove 302 to achieve initial positioning; next, pull down the Y-shaped clamping handle 305, which drives the clamping arm 306 to rotate clockwise around the pin of the fixed seat 303 through the Y-shaped connecting rod until the sealing gasket at the bottom of the clamping head 304 is completely fitted into the air vent of the airtightness test product 2. At this point, stop pulling the clamping handle 305, and the fixture forms a stable fixation and seal for the product; then open the valve of the pressurized air source, and the high-pressure gas passes through the air pipe 5 and the air pipe in sequence. Connector 4 enters the airtightness test product 2. After the internal pressure of the product reaches the preset test value, the air source valve is closed, the pressure is maintained, and the value change of the pressure monitoring instrument is observed. If the pressure does not drop within the specified time, it indicates that the product's airtightness performance is qualified. If the pressure drops, it is determined that the product has an air leak. After the test is completed, the exhaust valve on the air pipe 5 is opened to release the pressure inside the airtightness test product 2. After the pressure returns to zero, the clamping handle 305 is pulled upward to lift the clamping arm 306 and the clamping head 304, and the tested product can be taken out from the groove 302.

[0025] 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 tooling system for reducing the operation of airtightness testing, characterized in that, include: Support base plate (1), air tightness test product (2), clamping clamp (3), and clamping clamp (3) are installed on the top of the support base plate (1) for fixing the air tightness test product (2). The clamping pliers (3) include: The clamping table (301) is fixed to the support base plate (1) by bolts. The clamping table (301) has a groove (302) that is partially adapted to the air tightness test product (2) for placing the air tightness test product (2). A fixed seat (303) is fixed to one side of the top of the pressing table (301) by bolts. A pressing handle (305) is movably connected to one side of the fixed seat (303) by a pin. The pressing handle (305) has a "Y" shaped structure. A pressing arm (306) is movably connected to the top of the fixed seat (303) by a pin.

2. The tooling for reducing airtightness testing operations according to claim 1, characterized in that, The inside of the clamping handle (305) is connected to a Y-shaped connecting rod via a pin. One end of the Y-shaped connecting rod is movably connected to the clamping arm (306) via a pin. The clamping arm (306) passes through the inside of the clamping handle (305). The clamping handle (305) is movably connected to the clamping arm (306) via the Y-shaped connecting rod. Both the clamping handle (305) and the clamping arm (306) are movably connected to the fixed base (303).

3. The tooling for reducing airtightness testing operations according to claim 2, characterized in that, One end of the clamping arm (306) is equipped with a clamping head (304), the top of the clamping head (304) is connected to an air pipe connector (4) by a thread, and a sealing ring is embedded therein, and an air pipe (5) is connected to the top of the air pipe connector (4).

4. The tooling for reducing airtightness testing operations according to claim 3, characterized in that, A sealing gasket, which is a silicone gasket or a fluororubber gasket, is bonded to the bottom of the clamping head (304) to achieve a seal between the clamping head (304) and the airtightness test product (2) during clamping.

5. The tooling for reducing airtightness testing operations according to claim 4, characterized in that, The air pipe (5) is equipped with an exhaust valve, which is used to release the pressure inside the airtightness test product (2) after the test is completed.

6. The tooling for reducing airtightness testing operations according to claim 5, characterized in that, The exhaust valve is either a manual shut-off valve or a solenoid shut-off valve.

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