Automobile part air tightness detection device

Abstract

The utility model provides an automobile part air tightness detection device, which relates to the technical field of air tightness detection, and comprises a mounting table, a lower clamping plate is fixed on the upper surface of the mounting table, a connecting plate is fixed on the upper surface of the mounting table close to the edge of one side, and a rotating shaft rotatably penetrates through the connecting plate. When the fuel delivery pipe is extruded and fixed between the lower clamping plate and the upper clamping plate, the part reserved outside is not extruded, the fuel delivery pipe can be conveniently in butt joint with an air outlet pipe opening and an insertion piece later, and then two movable plates and the air outlet pipe opening and the insertion piece on the movable plates are driven to move towards a port of the fuel delivery pipe with the help of a second motor and a lead screw. And then the two ends of the fuel delivery pipe are inserted and clamped in the air outlet pipe opening and the insertion piece, so that the fuel delivery pipe can be quickly mounted before being inflated, a plurality of fuel delivery pipes can be mounted at one time, and the overall working efficiency of an air tightness test is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to an airtightness testing device for automotive parts. Background Technology

[0002] Automotive parts, also known as auto components, auto parts, or auto spare parts, refer to the components that make up the various units of a car and all consumable materials that serve the car. They are characterized by a wide variety of types, complex substitutes, complex identification systems, and rapid price fluctuations.

[0003] However, in existing technologies, some automotive parts, such as fuel delivery pipes, generally need to undergo an airtightness test before being officially installed in a car to ensure that they pass the test and effectively prevent fuel leakage during normal use after installation. The fuel delivery pipe is inflated by an inflation mechanism, and after inflation, the internal pressure is observed through a pressure gauge. If there is no change, the airtightness is qualified; if there is a change, the airtightness is unqualified. Currently, in the process of airtightness testing of fuel delivery pipes, most of the time, the two ends of the fuel delivery pipe are manually installed onto the inflation mechanism. When there are a large number of fuel delivery pipes to be tested, the manual installation method is inefficient and affects the overall efficiency of the airtightness test of the fuel delivery pipes. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies: Currently, during the airtightness testing of fuel delivery pipes, the two ends of the fuel delivery pipes are mostly installed manually onto the inflation mechanism. When there are a large number of fuel delivery pipes to be tested, the manual installation method is inefficient and affects the overall efficiency of the airtightness test of the fuel delivery pipes.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an airtightness testing device for automotive parts, comprising a mounting platform, a lower clamping plate fixed to the upper surface of the mounting platform, and a connecting plate fixed to one side edge of the upper surface of the mounting platform. A rotating shaft rotatably passes through the connecting plate. A motor is fixed to one side surface of the connecting plate and is fixedly connected to the rotating shaft. A rotating plate is fixed to the outer surface of the rotating shaft, and an upper clamping plate is fixed to one side surface of the rotating plate. Extended side plates are fixedly connected to both ends of the mounting platform. Both sides of the device are rotatably connected to lead screws, which are rotatably connected to the extension side plate. A second motor is fixed to one side of the extension side plate, and the second motor is fixedly connected to one end of the lead screw. A movable plate is threadedly connected to the surface of the lead screw, and the movable plate is slidably connected to the extension side plate. An air outlet and a through-plug are fixedly connected to the upper surfaces of the two movable plates, and a vent pipe is inserted and fixed to one end of the air outlet. An air pump is fixed to the air inlet on one side of the vent pipe. A connecting pipe is fixedly connected to one end of the through-plug, and a pressure gauge is fixedly connected to the connecting pipe.

[0006] In a preferred embodiment, both the lower clamping plate and the upper clamping plate have anti-slip textures on their inner clamping surfaces.

[0007] In a preferred embodiment, a retaining ring is fixedly connected to both the air outlet and the inner surface of the insert.

[0008] In a preferred embodiment, a track rod is fixedly connected to the opposite surfaces of the mounting platform and the extended side plate, and the track rod is connected through the movable plate.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] This invention, with the help of a rotating shaft and a No. 1 motor, allows the rotating plate and the upper clamping plate to move, enabling the lower clamping plate to align with the upper clamping plate. The upper clamping plate then presses and fixes the fuel delivery pipe placed on the lower clamping plate, ensuring that the fuel delivery pipe can be placed stably and horizontally. This prevents the fuel delivery pipe from moving haphazardly and causing poor alignment when the exhaust port and the insert are pressed and aligned with both ends of the fuel delivery pipe.

[0011] When the fuel delivery pipe is squeezed and fixed between the lower and upper clamps, a portion of it remains unsqueezed, facilitating its subsequent connection with the air outlet and the insert. Then, with the help of the second motor and the lead screw, the two moving plates, along with the air outlet and the insert on them, move towards the end of the fuel delivery pipe. Afterward, both ends of the fuel delivery pipe are inserted and snapped into the air outlet and the insert, completing the rapid installation of the fuel delivery pipe before inflation. Multiple fuel delivery pipes can be installed at once, effectively improving the efficiency of the overall airtightness test of the fuel delivery pipe. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of an automotive parts airtightness testing device provided by this utility model;

[0013] Figure 2 A schematic diagram of the structure around the lower clamping plate and the upper clamping plate of an automotive parts airtightness testing device provided by this utility model;

[0014] Figure 3 A schematic diagram of the structure around the vent pipe of an automotive parts airtightness testing device provided by this utility model;

[0015] Figure 4 This is a schematic diagram of the structure around the insert of an automotive parts airtightness testing device provided by this utility model.

[0016] Legend:

[0017] 1. Mounting platform; 2. Lower clamping plate; 3. Rotating shaft; 4. Motor No. 1; 5. Rotating plate; 6. Upper clamping plate; 7. Extended side plate; 8. Lead screw; 9. Track rod; 10. Motor No. 2; 11. Moving plate; 12. Air outlet; 13. Insert; 14. Vent pipe; 15. Air pump; 16. Pressure gauge; 17. Fixing ring. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] like Figure 1-4As shown, this utility model provides a technical solution: an airtightness testing device for automotive parts, including a mounting platform 1, a lower clamping plate 2 fixed on the upper surface of the mounting platform 1, and a connecting plate fixed near one edge of the upper surface of the mounting platform 1. A rotating shaft 3 is rotatably passed through the connecting plate. A first motor 4 is fixed on one side surface of the connecting plate and is fixedly connected to the rotating shaft 3. A rotating plate 5 is fixed on the outer surface of the rotating shaft 3, and an upper clamping plate 6 is fixed on one side surface of the rotating plate 5. First, the fuel delivery pipe to be tested for airtightness is horizontally placed on the lower clamping plate 2, and the length of the fuel delivery pipe is longer than the lower clamping plate 2. After it is horizontally placed on the lower clamping plate 2, both ends of the fuel delivery pipe will extend beyond the lower clamping plate 2. Then, the fuel delivery pipe is passed through the first motor. 4. Drive the rotating shaft 3 to rotate. The rotation of the rotating shaft 3 drives the rotating plate 5 and the upper clamping plate 6 to move. After the upper clamping plate 6 moves a certain distance, it will dock with the lower clamping plate 2, allowing the upper clamping plate 6 to squeeze and fix the fuel delivery pipe placed on the lower clamping plate 2. This ensures that the fuel delivery pipe can be placed stably and horizontally, preventing the fuel delivery pipe from moving haphazardly and causing poor docking when the exhaust port 12 and the through-plug 13 are squeezed and docked with the two ends of the fuel delivery pipe. Both ends of the mounting platform 1 are fixedly connected to the extension side plates 7, and both sides of the mounting platform 1 are rotatably connected to the lead screws 8. The lead screws 8 are rotatably connected to the extension side plates 7. A second motor 10 is fixed to one side of the extension side plate 7, and the second motor 10 is fixedly connected to one end of the lead screw 8. The surface of the lead screw 8 is threaded with a movable... Plate 11, with the movable plate 11 slidably connected to the extended side plate 7, is driven by motor 10 to rotate the lead screw 8, allowing the movable plate 11 to move left and right along the extended side plate 7. An outlet port 12 and a through-plug 13 are fixedly connected to the upper surfaces of the two movable plates 11, respectively. After the fuel delivery pipe is pressed and fixed between the lower clamping plate 2 and the upper clamping plate 6, the two movable plates 11 move towards the port of the fuel delivery pipe, thereby also moving the outlet port 12 and the through-plug 13 towards the port of the fuel delivery pipe. Then, both ends of the fuel delivery pipe are inserted and snapped into the outlet port 12 and the through-plug 13, completing the rapid installation of the fuel delivery pipe before inflation. Multiple fuel delivery pipes can be installed at once, effectively improving the overall performance of the fuel delivery pipe. The airtightness test is conducted efficiently. A vent pipe 14 is inserted and fixed to one end of the vent pipe 12. An air pump 15 is fixed to the air inlet on one side of the vent pipe 14. A connecting pipe is fixed to one end of the insert 13, and a pressure gauge 16 is fixedly connected to the connecting pipe. After the two ends of the fuel delivery pipe are installed at the vent pipe 12 and the insert 13, air is supplied to the vent pipe 14 with the help of the air pump 15. The supplied air then flows into the fuel delivery pipe, causing the pressure in the fuel delivery pipe to rise. The pressure gauge 16 indicates the specific pressure in the fuel delivery pipe. When the pressure in the fuel delivery pipe reaches the predetermined test value, the second motor 10 is turned off. The pressure gauge 16 is then continuously observed for any changes in its value.If there are any changes, the fuel delivery pipe fails the airtightness test; if there are no changes, the fuel delivery pipe passes the airtightness test.

[0021] Example 2

[0022] like Figure 1-4 As shown, the inner surfaces of the lower clamping plate 2 and the upper clamping plate 6 are provided with anti-slip textures. These textures enhance the friction between the inner surfaces of the lower clamping plate 2 and the upper clamping plate 6, thereby effectively improving the stability of the fuel delivery pipe clamped by the lower clamping plate 2 and the upper clamping plate 6. Fixing rings 17 are fixedly connected to the inner surfaces of the exhaust port 12 and the through-plug 13. When the portions of the fuel delivery pipe that are pre-installed outside the lower clamping plate 2 and the upper clamping plate 6 are fully inserted and clamped into the exhaust port 12 and the through-plug 13, the two ends of the fuel delivery pipe are fixed to the fixing rings 17. The tighter compression contact, by making the surfaces of both ends of the fuel delivery pipe in close contact with the surface of the fixing ring 17, reduces the gap between the two ends of the fuel delivery pipe and the air outlet 12 and the through plug 13, thus improving its sealing performance and effectively preventing air leakage when supplying air to the fuel delivery pipe. The mounting platform 1 and the extended side plate 7 are fixedly connected to the opposite surfaces, and the track rod 9 is connected to the moving plate 11 through the track rod. With the help of the track rod 9, the linear movement stability of the moving plate 11 is further improved.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automobile part air tightness detection device, comprising a mounting table (1), characterized in that: The upper surface of the mounting platform (1) is fixed with a lower clamping plate (2), and a connecting plate is fixed near one edge of the upper surface of the mounting platform (1). A rotating shaft (3) is rotatably passed through the connecting plate. A motor (4) is fixed on one side surface of the connecting plate, and the motor (4) is fixedly connected to the rotating shaft (3). A rotating plate (5) is fixed on the outer surface of the rotating shaft (3), and an upper clamping plate (6) is fixed on one side surface of the rotating plate (5). Both ends of the mounting platform (1) are fixedly connected with extended side plates (7), and both sides of the mounting platform (1) are rotatably connected with screws (8). The screws (8) are rotatably connected to the extended side plates (7). A second motor (10) is fixed on one side of the extended side plate (7), and the second motor (10) is fixedly connected to one end of the lead screw (8). The surface of the lead screw (8) is threaded with a moving plate (11), and the moving plate (11) is slidably connected to the extended side plate (7). An air outlet (12) and a through-plug (13) are fixedly connected on the upper surfaces of the two moving plates (11), and a vent pipe (14) is inserted and fixed at one end of the air outlet (12). An air pump (15) is fixed at the air inlet on one side of the vent pipe (14). A connecting pipe is fixedly inserted at one end of the through-plug (13), and a pressure gauge (16) is fixedly connected to the connecting pipe.

2. The automobile part air tightness detection device according to claim 1, characterized in that: The inner clamping surfaces of the lower clamping plate (2) and the upper clamping plate (6) are both provided with anti-slip textures.

3. The automobile parts air tightness detection device according to claim 1, characterized in that: A fixing ring (17) is fixedly connected to the inner surface of both the air outlet (12) and the insert (13).

4. The automobile part air tightness detection device according to claim 1, characterized in that: The mounting platform (1) and the extended side plate (7) are fixedly connected to a track rod (9), and the track rod (9) and the movable plate (11) are connected through each other.

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