Lamp housing air tightness detection equipment

Abstract

The utility model relates to the technical field of lamp housing airtightness detection, in particular to lamp housing airtightness detection equipment. The device comprises a bottom frame, a supporting frame, a top plate, a sealing base, an air pump, a sealing top seat, a sealing ring, an elastic pipe, a vacuum pump, a connecting pipe, a clamping assembly and a driving assembly used for driving the sealing top seat to ascend and descend. The supporting frame is arranged on the bottom frame, the top plate is arranged on the supporting frame, the driving assembly is arranged on the supporting frame and the top plate, the sealing top seat is arranged on the supporting frame in a sliding mode, the two clamping assemblies are oppositely arranged on the bottom frame and the sealing base, the sealing ring is arranged on the sealing top seat, and the vacuum pump is arranged on the bottom frame. The vacuum pump, the connecting pipe, the elastic pipe and the sealing top seat are sequentially communicated, the air pump is arranged on the bottom frame, the sealing base and the sealing top seat are matched to form a sealing cavity, a control valve is arranged on the air pump, and the air pump, the sealing base and the air outlet are sequentially communicated. According to the utility model, the air pressure difference inside and outside the lamp housing is increased through the air pump and the vacuum pump to improve the detection precision of the lamp housing.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp housing air tightness detection, in particular to a lamp housing air tightness detection device. Background Art

[0002] Headlights, also known as car headlamps, can provide lighting for the road ahead of the car when lighting conditions are insufficient to ensure safe driving of the vehicle. Headlights have certain air tightness requirements, so they need to be tested for air tightness before leaving the factory. The traditional way of testing air tightness is that the operator holds the pipe, connects the pipe to the opening of the headlight, and injects gas with a certain pressure into the inner cavity of the headlight through the pipe, and then observes the pressure gauge connected to the pipe. If the pressure reaches the preset value and remains constant, it means that the air tightness of the headlight meets the requirements.

[0003] However, when the traditional air tightness detection method pressurizes the lamp housing, the outside air will also pressurize the lamp housing. When the gap in the lamp housing is small, the pressure gauge will change little when the pressure is just applied. The workers usually do not spend too much time on the inspection, which can easily lead to the neglect of the problem of the lamp housing and affect the subsequent normal use of the headlight. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a lamp housing air tightness detection device which can improve the lamp housing detection accuracy by increasing the air pressure difference between the inside and outside of the lamp housing through an air pump and a vacuum pump.

[0005] The technical solution of the utility model is a lamp housing air tightness detection device, comprising a base frame, a support frame, a top plate, a sealing base, an air pump, a sealing top seat, a sealing ring, an elastic tube, a vacuum pump, a connecting pipe, a clamping assembly and a driving assembly for driving the sealing top seat to rise and fall; the support frame is arranged on the base frame, the top plate is arranged on the support frame, the driving assembly is arranged on the support frame and the top plate, the sealing top seat is slidingly arranged on the support frame, two clamping assemblies are relatively arranged on the base frame and the sealing base, the clamping assembly comprises a cylinder, a mounting plate, a sliding plate, a sliding column, a spring and a clamping plate, and the cylinder is arranged on the base frame The cylinder is driven and connected to the mounting plate, the sliding plate is arranged on the sliding column, two sliding columns are slidably arranged on the mounting plate, two ends of the spring are respectively connected to the sliding plate and the mounting plate, a clamping plate is rotatably arranged on each of the two sliding plates, and the two clamping plates are rotatably connected. The sealing ring is arranged on the sealing top seat, the sealing base and the sealing top seat cooperate to form a sealing cavity, the vacuum pump is arranged on the base frame, the vacuum pump, the connecting pipe, the elastic tube and the sealing top seat are connected in sequence, the air pump is arranged on the base frame, the sealing base is provided with an air outlet, the air pump is provided with a control valve, the air pump, the sealing base and the air outlet are connected in sequence.

[0006] Preferably, the driving assembly includes a screw and a motor. The screw is vertically rotatably arranged on a support frame, the motor is arranged on a top plate, the motor is drivingly connected to the screw, and the screw is threadedly connected to a sealing top seat.

[0007] Preferably, the bottoms of the two clamping plates have passage grooves.

[0008] Preferably, the control valve is a solenoid valve.

[0009] Preferably, the chassis is connected to a controller, and the controller is electrically connected to the cylinder, the air pump and the vacuum pump respectively.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] When the utility model is used, a worker places the lamp housing on the sealing base, places the air inlet of the lamp housing on the air outlet, clamps the lamp housing with two clamping components, and drives the sealing top seat down with a driving component until the sealing base abuts against the sealing top seat, and the sealing ring and the sealing base are in sealing contact with the sealing top seat. Then, the vacuum pump is started to draw a vacuum into the sealing cavity, and at the same time, the air pump fills air into the lamp housing. Then, the worker detects the change in air pressure inside the lamp housing. Because the outside of the lamp housing is a vacuum, gas will quickly flow out of the small gaps on the lamp housing, so that problems with the lamp housing can be accurately checked, thereby improving the yield rate of the lamp housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0013] Figure 2 A cross-sectional view of an embodiment of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the clamping assembly in an embodiment of the utility model.

[0015] Figure numerals: 1. base frame; 2. support frame; 3. top plate; 4. controller; 5. sealing base; 51. air outlet; 6. cylinder; 7. mounting plate; 81. sliding plate; 82. sliding column; 83. spring; 9. clamping plate; 10. air pump; 101. control valve; 11. sealing top seat; 12. sealing ring; 13. elastic tube; 14. vacuum pump; 15. connecting pipe; 16. screw rod; 17. motor. DETAILED DESCRIPTION

[0016] Embodiment 1

[0017] like Figure 1-Figure 3As shown, a lamp housing air tightness detection device proposed in this embodiment includes a base frame 1, a support frame 2, a top plate 3, a sealing base 5, an air pump 10, a sealing top seat 11, a sealing ring 12, an elastic tube 13, a vacuum pump 14, a connecting pipe 15, a clamping assembly and a driving assembly for driving the sealing top seat 11 to rise and fall.

[0018] The support frame 2 is arranged on the base frame 1, the top plate 3 is arranged on the support frame 2, the driving assembly is arranged on the support frame 2 and the top plate 3, the sealing top seat 11 is slidably arranged on the support frame 2, and two clamping assemblies are relatively arranged on the base frame 1 and the sealing base 5. The clamping assembly includes a cylinder 6, a mounting plate 7, a sliding plate 81, a sliding column 82, a spring 83 and a clamping plate 9. The cylinder 6 is arranged on the base frame 1, and the cylinder 6 is connected to the mounting plate 7 by driving. The sliding plate 81 is arranged on the sliding column 82, and two sliding columns 82 are slidably arranged on the mounting plate 7. The two ends of the spring 83 are respectively connected to the sliding plate 81 and the mounting plate 7, and the clamping plate 9 is at both ends. One is rotatably arranged on each sliding plate 81, and the two clamping plates 9 are rotatably connected. The bottom of the two clamping plates 9 has a passage groove. When clamping the lamp housing, the clamping plates 9 can avoid contact with the air outlet 51, thereby ensuring the stability of the clamped lamp housing. After the lamp housing is placed on the sealing base 5, the cylinder 6 drives the mounting plate 7 to move toward the lamp housing until the two clamping plates 9 on both sides contact the lamp housing, and an angle is formed between the two clamping plates 9, thereby increasing the clamping angles of multiple clamping plates 9, improving the stability of the lamp housing, and avoiding the lamp housing from moving during inflation, resulting in abnormal lamp housing detection data, thereby improving the detection quality of the equipment.

[0019] A sealing ring 12 is arranged on the sealing top seat 11, and the sealing base 5 and the sealing top seat 11 cooperate to form a sealing cavity. A vacuum pump 14 is arranged on the base frame 1, and the vacuum pump 14, the connecting pipe 15, the elastic tube 13 and the sealing top seat 11 are connected in sequence. An air pump 10 is arranged on the base frame 1, and an air outlet 51 is arranged on the sealing base 5. A control valve 101 is arranged on the air pump 10. The control valve 101 is a solenoid valve. When the lamp housing is inflated, the solenoid valve can be used to control the amount of air entering the lamp housing, thereby ensuring the detection accuracy of the lamp housing, and the air pump 10, the sealing base 5 and the air outlet 51 are connected in sequence.

[0020] When this embodiment is used, the worker places the lamp housing on the sealing base 5, places the air inlet of the lamp housing on the air outlet 51, the two clamping components clamp the lamp housing, and the driving component drives the sealing top seat 11 to descend until the sealing base 5 abuts against the sealing top seat 11, and the sealing ring 12 and the sealing base 5 are in sealing contact with the sealing top seat 11, and then starts the vacuum pump 14 to draw a vacuum into the sealing cavity, and at the same time the air pump 10 fills air into the lamp housing, and then the worker detects the change in air pressure inside the lamp housing. Because the outside of the lamp housing is a vacuum, the small gaps on the lamp housing will also quickly flow out gas, so that the problems of the lamp housing can be carefully checked, thereby improving the yield rate of the lamp housing.

[0021] Embodiment 2

[0022] like Figure 1 and Figure 2 As shown, this embodiment proposes a lamp housing air tightness detection device. Compared with the first embodiment, in this embodiment, the driving assembly includes a screw 16 and a motor 17. The screw 16 is vertically rotatably arranged on the support frame 2, and the motor 17 is arranged on the top plate 3. The motor 17 is drivingly connected to the screw 16, and the screw 16 is threadedly connected to the sealing top seat 11.

[0023] In this embodiment, after the worker places the lamp housing on the sealing base 5, the motor 17 drives the screw rod 16 to descend, and the screw rod 16 drives the sealing top seat 11 to descend, so that the sealing base 5 and the sealing top seat 11 can be sealed and connected, thereby improving the detection accuracy of the lamp housing.

[0024] Embodiment 3

[0025] like Figure 1-Figure 3 As shown, this embodiment proposes a lamp housing air tightness detection device. Compared with the first embodiment, in this embodiment, the base frame 1 is connected to the controller 4, and the controller 4 is electrically connected to the cylinder 6, the air pump 10 and the vacuum pump 14 respectively.

[0026] In this embodiment, the worker controls the cylinder 6, the air pump 10 and the vacuum pump 14 through the controller 4, the controller 4 drives the cylinder 6 to clamp the lamp housing, and then controls the air pump 10 and the vacuum pump 14 to evacuate the sealed cavity and inflate the interior of the air housing, so that the equipment can quickly detect problems with the air housing, thereby ensuring the manufacturer's yield rate.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lamp housing air tightness detection device, characterized in that: It comprises a base frame (1), a support frame (2), a top plate (3), a sealing base (5), an air pump (10), a sealing top seat (11), a sealing ring (12), an elastic tube (13), a vacuum pump (14), a connecting pipe (15), a clamping assembly and a driving assembly for driving the sealing top seat (11) to rise and fall; The support frame (2) is arranged on the base frame (1), the top plate (3) is arranged on the support frame (2), the driving assembly is arranged on the support frame (2) and the top plate (3), the sealing top seat (11) is slidably arranged on the support frame (2), two clamping assemblies are arranged on the base frame (1) and the sealing base (5) in a relative manner, the clamping assembly comprises a cylinder (6), a mounting plate (7), a sliding plate (81), a sliding column (82), a spring (83) and a clamping plate (9), the cylinder (6) is arranged on the base frame (1), the cylinder (6) is drivingly connected to the mounting plate (7), the sliding plate (81) is arranged on the sliding column (82), two sliding columns (82) are slidably arranged on the mounting plate (7), two ends of the spring (83) are respectively connected to the sliding column (81), and the two ends of the spring (83) are respectively connected to the sliding column (82). The movable plate (81) is connected to the mounting plate (7), a clamping plate (9) is rotatably arranged on each of the two sliding plates (81), and the two clamping plates (9) are rotatably connected, a sealing ring (12) is arranged on the sealing top seat (11), a vacuum pump (14) is arranged on the base frame (1), the vacuum pump (14), the connecting pipe (15), the elastic pipe (13) and the sealing top seat (11) are connected in sequence, an air pump (10) is arranged on the base frame (1), an air outlet hole (51) is arranged on the sealing base (5), the sealing base (5) and the sealing top seat (11) cooperate to form a sealed cavity, a control valve (101) is arranged on the air pump (10), and the air pump (10), the sealing base (5) and the air outlet hole (51) are connected in sequence.

2. A lamp housing air tightness detection device according to claim 1, characterized in that: The driving assembly comprises a screw rod (16) and a motor (17). The screw rod (16) is vertically rotatably arranged on the support frame (2). The motor (17) is arranged on the top plate (3). The motor (17) is drivingly connected to the screw rod (16). The screw rod (16) is threadedly connected to the sealing top seat (11).

3. A lamp housing air tightness detection device according to claim 1, characterized in that: The bottoms of the two clamping plates (9) are provided with passage grooves.

4. A lamp housing air tightness detection device according to claim 3, characterized in that: The control valve (101) is a solenoid valve.

5. A lamp housing air tightness detection device according to claim 4, characterized in that: The base frame (1) is connected to a controller (4), and the controller (4) is electrically connected to the cylinder (6), the air pump (10) and the vacuum pump (14) respectively.

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