Airtightness detection device for automobile lamp adjusting rod

Abstract

The utility model relates to an air tightness detection device for an automobile lamp adjusting rod, which is characterized in that the automobile lamp adjusting rod is placed on a product fixing seat, a pressing mechanism is started, and the automobile lamp adjusting rod is pressed downwards, so that gas waste and inaccurate detection results caused by the fact that gas pushes the automobile lamp adjusting rod to move upwards during gas injection of a gas inlet branch pipe are avoided. In the gas injection process, the gas outlet electromagnetic valve is closed to prevent gas from overflowing through the gas outlet branch pipe, gas is continuously injected into the cylinder cavity through the gas inlet branch pipe for T1 time, so that the gas inlet branch pipe, the cylinder cavity and the gas outlet branch pipe are all filled with gas, the gas inlet pressure measured by the first sensor on the gas inlet branch pipe is recorded, and after standing for T2 time after gas injection is finished, the gas outlet pressure measured by the second sensor is observed; if the air inlet pressure is equal to the air outlet pressure, it is judged that the air tightness of the barrel of the automobile lamp adjusting rod is good, and the product is a qualified product; and if the air inlet pressure is greater than the air outlet pressure, determining that air leakage occurs in the cylinder, and determining that the product is an unqualified product.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile lamp, specifically, relate to a kind of air-tight detection device for automobile lamp adjusting rod. BACKGROUND

[0002] Automobile lamp adjusting rod is one of important components of car lamp system, if its leakage occurs in use process, water vapor appears in car lamp, illumination effect of car lamp is affected, even it can make the line short circuit of car, affect driving safety.There is no air-tight detection device for automobile lamp adjusting rod in prior art, leakage problem of automobile lamp adjusting rod of factory can be detected by air-tight detection device, avoid the leakage of automobile lamp adjusting rod of vehicle after assembly. SUMMARY

[0003] In order to overcome the problem of lacking air-tight detection device for automobile lamp adjusting rod in prior art, the utility model provides an air-tight detection device for automobile lamp adjusting rod.

[0004] In order to realize the above-mentioned purpose, the present disclosure provides an air-tight detection device for automobile lamp adjusting rod, the automobile lamp adjusting rod is provided with cavity cylinder and air inlet and air outlet communicated with cavity cylinder, comprising:

[0005] Frame, it is equipped with product fixed seat, the product fixed seat is used to place the automobile lamp adjusting rod;

[0006] Down mechanism, it is installed on the frame, for down the automobile lamp adjusting rod, make the car lamp adjusting rod fixed in the product fixed seat;

[0007] Air inlet branch pipe, with the product fixed seat is connected, and two ends are communicated with gas source and the air inlet of automobile lamp adjusting rod respectively;

[0008] First sensor, it is equipped on the air inlet branch pipe, for detecting air inlet pressure;

[0009] Air outlet branch pipe, with the product fixed seat is connected, two ends are communicated with air outlet solenoid valve and the air outlet of automobile lamp adjusting rod respectively;And

[0010] Second sensor, it is equipped on the air outlet branch pipe, for detecting air outlet pressure.

[0011] Optionally, the air inlet of the automobile lamp adjusting rod and the air outlet of the automobile lamp adjusting rod are opened in the bottom of the cavity cylinder;

[0012] The number of product fixing seats is multiple, and the product fixing seats are installed on the rack at intervals, the bottom of the product fixing seat is provided with an air inlet end and an air outlet end, the air inlet end is arranged corresponding to the air inlet of the automobile lamp adjusting rod, the air outlet end is arranged corresponding to the air outlet of the automobile lamp adjusting rod, one end of the air inlet branch pipe is fixed on the air inlet end, and one end of the air outlet branch pipe is fixed on the air outlet end.

[0013] Optionally, the air tightness detection device further comprises:

[0014] A total gas pressure gauge is communicated with the gas source through a total gas pipe,

[0015] A gas pressure gauge one is installed on the air inlet branch pipe;

[0016] An air inlet electromagnetic valve is installed on the air inlet branch pipe and arranged between the gas pressure gauge one and the air inlet end of the product fixing seat.

[0017] Optionally, the air tightness detection device further comprises a gas pressure gauge two communicated with the gas source;

[0018] The lower pressing mechanism comprises:

[0019] A cylinder communicated with the gas pressure gauge two;

[0020] A lower pressing electromagnetic valve installed between the cylinder and the gas pressure gauge two; and

[0021] A lower pressing plate installed on the output shaft of the cylinder.

[0022] Optionally, the number of cylinders is two, and the two cylinders are respectively connected with two ends of the lower pressing plate.

[0023] Optionally, the air tightness detection device further comprises two guide rods arranged between the two cylinders, the two guide rods are respectively installed on the rack, two ends of the lower pressing plate are respectively sleeved on the outer periphery of the two guide rods, and the lower pressing plate is in sliding connection with the guide rods.

[0024] Optionally, the cylinder comprises an output shaft and a disc fixed on the outer periphery of the output shaft, and a first sensing switch for detecting the height position of the disc is installed in the cylinder.

[0025] Optionally, a sensing part is installed on the output shaft;

[0026] The air tightness detection device further comprises a second sensing switch, the second sensing switch is installed on the rack and used for sensing the height position of the sensing part.

[0027] Optionally, the air tightness detection device further comprises a transverse electromagnetic cylinder, which is slidingly arranged on the rack and used to be connected with a brush, and the brush is used to mark the unqualified automobile lamp adjusting rod.

[0028] The technical scheme provided by the embodiment of the disclosure can include the following beneficial effects:

[0029] The automobile lamp adjusting rod is placed on the product fixing seat, the downward pressing mechanism is started, the automobile lamp adjusting rod is pressed downward, the air inlet branch pipe is prevented from moving upward under the pushing of the gas during the gas injection, the waste of the gas and the inaccuracy of the detection result are avoided, the gas outlet electromagnetic valve is closed during the gas injection, the overflow of the gas through the gas outlet branch pipe is avoided, the cylinder cavity is continuously injected with the gas through the air inlet branch pipe for T1 time, the air inlet branch pipe, the cylinder cavity and the gas outlet branch pipe are filled with the gas, the inlet air pressure measured by the first sensor on the air inlet branch pipe is recorded, after T2 time of static state after the gas injection is completed, the outlet air pressure measured by the second sensor is observed, if the inlet air pressure is equal to the outlet air pressure, it is determined that the air tightness of the cylinder body of the automobile lamp adjusting rod is good, and the product is a qualified product, if the inlet air pressure is greater than the outlet air pressure, it is determined that the air leakage occurs in the cylinder body, and the product is an unqualified product, the detection of the air leakage defective product is ensured, and the condition for the automobile lamp adjusting rod to use the gas assisted injection molding is provided. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 FIG. 4 is a rear view of an air tightness detection device for an automobile lamp adjusting rod according to an exemplary embodiment of the disclosure.

[0031] Figure 2 FIG. 5 is a front view of an air tightness detection device for an automobile lamp adjusting rod according to an exemplary embodiment of the disclosure.

[0032] DETAILED DESCRIPTION

[0033] 10, automobile lamp adjusting rod; 100, rack; 110, product fixing seat; 200, downward pressing mechanism; 210, air cylinder; 220, downward pressing electromagnetic valve; 230, downward pressing plate; 310, air inlet branch pipe; 311, air inlet electromagnetic valve; 312, first sensor; 320, gas outlet branch pipe; 321, second sensor; 322, gas outlet electromagnetic valve; 410, total air pressure gauge; 420, air pressure gauge one; 430, air pressure gauge two; 510, guide rod; 610, first induction switch; 620, second induction switch; 710, transverse electromagnetic cylinder. DETAILED DESCRIPTION

[0034] The specific embodiments of the disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the disclosure, and are not used to limit the disclosure.

[0035] In the present disclosure, the orientation words such as "upper", "lower", "front", "back", "left", "right" are used for the convenience of description of the plane direction defined according to the corresponding drawings, and "inner", "outer" are defined according to the contour of the corresponding parts. The terms such as "first", "second" used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. In addition, when the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated.

[0036] Referring to Figure 1 and Figure 2 , the present disclosure provides a kind of air-tight detection device for automobile lamp adjusting rod, automobile lamp adjusting rod 10 is equipped with cavity cylinder and with cavity cylinder communication inlet and outlet, including frame 100, press mechanism 200, inlet branch pipe 310, first sensor 312, outlet branch pipe 320 and second sensor 321.Therein, frame 100 is equipped with product fixed seat 110, product fixed seat 110 is used to place automobile lamp adjusting rod 10.Press mechanism 200 is installed on frame 100, for pressing automobile lamp adjusting rod 10, make car light adjusting rod be fixed in product fixed seat 110.Inlet branch pipe 310 is connected with product fixed seat 110, and two ends are communicated with gas source and the inlet of automobile lamp adjusting rod 10 respectively.First sensor 312 is arranged on inlet branch pipe 310, for detecting inlet pressure.Outlet branch pipe 320 is connected with product fixed seat 110, and two ends are communicated with outlet solenoid valve 322 and the outlet of automobile lamp adjusting rod 10 respectively.Second sensor 321 is arranged on outlet branch pipe 320, for detecting outlet pressure.

[0037] It can be understood that automobile lamp adjusting rod 10 is placed on product fixed seat 110, press mechanism 200 is started, and then automobile lamp adjusting rod 10 is pressed, to avoid that gas pushes automobile lamp adjusting rod 10 to move upward when inlet branch pipe 310 is injected, leading to waste of gas and inaccuracy of detection result, outlet solenoid valve 322 is closed during injection process, to avoid that gas overflows through outlet branch pipe 320, inlet branch pipe 310 is continuously injected T1 time, so that inlet branch pipe 310, barrel cavity and outlet branch pipe 320 are all filled with gas, and the inlet pressure measured by first sensor 312 on inlet branch pipe 310 is recorded, after T2 time of static after injection, the outlet pressure measured by second sensor 321 is observed, if the inlet pressure is equal to the outlet pressure, it is determined that the air tightness of the barrel of car light adjusting rod is better, and the product is qualified;If the inlet pressure is greater than the outlet pressure, it is determined that there is leakage in the barrel, and the product is unqualified, which ensures that the leakage of defective products is detected, and provides conditions for the use of gas-assisted injection molding of automobile lamp adjusting rod 10.T1, T2 time needs to be selected according to the size of automobile lamp adjusting rod 10, for example, T1, T2 can be 2 minutes, 3 minutes or 5 minutes, etc., which will not be described in detail here.

[0038] In an embodiment, the air inlet of the automobile lamp adjusting rod 10 and the air outlet of the automobile lamp adjusting rod 10 are arranged at the bottom of the cavity cylinder; the number of the product fixing seat 110 is multiple, and the product fixing seat 110 is arranged on the rack 100 at intervals; the bottom of the product fixing seat 110 is provided with an air inlet end and an air outlet end, the air inlet end is arranged corresponding to the air inlet of the automobile lamp adjusting rod 10, the air outlet end is arranged corresponding to the air outlet of the automobile lamp adjusting rod 10, one end of the air inlet branch pipe 310 is fixed on the air inlet end, and one end of the air outlet branch pipe 320 is fixed on the air outlet end.

[0039] It can be understood that, referring to Figure 1 and Figure 2 , in the embodiment, the number of the product fixing seat 110 is four, the air outlet electromagnetic valve 322 on the air outlet branch pipe 320 is closed, one end of the air inlet branch pipe 310 close to the product fixing seat 110 is provided with four air inlet branches, the four air inlet branches are connected with the four air inlet ends respectively, so that the gas in the air inlet branch pipe 310 can enter the cavity through the air inlet end and the air inlet of the automobile lamp adjusting rod 10, and the air inlet branch pipe 310 can inject gas into the four cavities at the same time; one end of the air outlet branch pipe 320 close to the product fixing seat 110 is provided with four air outlet branches, the four air outlet branches are connected with the four air outlet ends respectively, after the gas injection and standing for T2 time, the air outlet pressure value measured by the second sensor 321 is observed, the air outlet pressure value is compared with the air inlet pressure value, if they are equal, it proves that the four automobile lamp adjusting rods 10 are qualified products, otherwise, there are unqualified products in the four automobile lamp adjusting rods 10, one automobile adjusting rod and three qualified automobile lamp adjusting rods 10 found from the warehouse are taken to form a group to carry out the gas injection experiment again, if the air outlet pressure value and the air inlet pressure value are the same or approximately the same, the automobile adjusting rod is a qualified product; the other three automobile adjusting rods are respectively taken to carry out the experiment with the three qualified automobile adjusting rods found from the warehouse to find the unqualified products.

[0040] In an embodiment, referring to Figure 1 , the air tightness detection device further comprises a total air pressure gauge 410, an air pressure gauge one 420 and an air inlet electromagnetic valve 311. The total air pressure gauge 410 is communicated with the air source through a total air pipe. The air pressure gauge one 420 is installed on the air inlet branch pipe 310. The air inlet electromagnetic valve 311 is installed on the air inlet branch pipe 310 and arranged between the air pressure gauge one 420 and the air inlet end of the product fixing seat 110.

[0041] In an embodiment, referring to Figure 1The air-tightness detection device further comprises a second air pressure gauge 430 in communication with the air source. The pressing mechanism 200 comprises a cylinder 210, a pressing electromagnetic valve 220 and a pressing plate 230. The cylinder 210 is in communication with the second air pressure gauge 430. The pressing electromagnetic valve 220 is installed between the cylinder 210 and the second air pressure gauge 430. The pressing plate 230 is installed on the output shaft of the cylinder 210.

[0042] In an embodiment, referring to Figure 2 The number of the cylinders 210 is two, and each is connected with one end of the pressing plate 230, so that the two ends of the pressing plate 230 can be pressed at the same time, thereby ensuring that the four automobile lamp adjusting rods 10 are evenly stressed.

[0043] In an embodiment, referring to Figure 2 The air-tightness detection device further comprises two guide rods 510 installed between the two cylinders 210, and each is installed on the rack 100. The two ends of the pressing plate 230 are sleeved on the outer periphery of the two guide rods 510 and are in sliding connection with the guide rods 510, so that the pressing plate 230 moves along a straight line, thereby ensuring the pressing effect.

[0044] In an embodiment, the cylinder 210 comprises an output shaft and a disc fixed on the outer periphery of the output shaft. A first sensing switch 610 is installed in the cylinder 210 to detect the height position of the disc, so that the control system can timely know the state of the cylinder 210.

[0045] In an embodiment, referring to Figure 1 and Figure 2 A sensing member is installed on the output shaft. The air-tightness detection device further comprises a second sensing switch 620 installed on the rack 100 and used for sensing the height position of the sensing member. The air-tightness detection device further comprises a PLC controller electrically connected with the pressing electromagnetic valve 220, the air inlet electromagnetic valve 311, the first sensor 312, the second sensor 321, the air outlet electromagnetic valve 322, the first sensing switch 610 and the second sensing switch 620 to control their working states. The number of the second sensing switches 620 is multiple, and they are installed at intervals in the height direction of the rack 100. According to the automobile lamp adjusting rod 10, one of the second sensing switches 620 is selected for use. When the sensing member reaches the second sensing switch 620, the PLC controller controls the pressing electromagnetic valve 220 to be powered off, so that the cylinder 210 stops pressing the automobile lamp adjusting rod 10, thereby avoiding damage to the automobile lamp adjusting rod 10. In an embodiment, the air-tightness detection device further comprises a display screen used for displaying the working states of the electromagnetic valves, the sensing switches and the sensors.

[0046] In an embodiment, referring to Figure 1The air tightness testing device further comprises a transverse electromagnetic cylinder 710, which is slidingly arranged on the frame 100 and is used to be connected with a brush, which is used to mark the unqualified automobile lamp adjusting rod 10. When the measured automobile lamp adjusting rod 10 is unqualified, the transverse electromagnetic cylinder makes the brush draw across the automobile lamp adjusting rod 10, which is used to mark the product as unqualified.

[0047] The present application is described by way of examples, and those skilled in the art will appreciate that various modifications and equivalents can be made to these features and examples without departing from the spirit and scope of the present application. In addition, these features and examples can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific examples disclosed herein, and all examples falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. An airtightness testing device for an automotive headlight adjustment rod (10), wherein the automotive headlight adjustment rod (10) is provided with a cavity and an air inlet and an air outlet connected to the cavity, characterized in that, include: The frame (100) is provided with a product fixing seat (110), which is used to place the car headlight adjustment rod (10); A pressing mechanism (200) is installed on the frame (100) and is used to press down the car headlight adjustment rod (10) so that the headlight adjustment rod (10) is fixed in the product mounting base (110); The intake branch pipe (310) is connected to the product mounting base (110), and its two ends are respectively connected to the air source and the air inlet of the car headlight adjustment rod (10); The first sensor (312) is installed on the intake manifold (310) and is used to detect the intake pressure; An exhaust branch pipe (320) is connected to the product mounting base (110), and its two ends are respectively connected to the exhaust solenoid valve (322) and the exhaust port of the car headlight adjustment rod (10); and The second sensor (321) is installed on the outlet branch pipe (320) and is used to detect the outlet pressure.

2. The airtightness detection device for an automotive headlight adjustment rod according to claim 1, characterized in that, The air inlet and the air outlet of the car headlight adjustment rod (10) are located at the bottom of the cavity. The product mounting base (110) is multiple and is installed at intervals on the frame (100). The bottom of the product mounting base (110) is provided with an air inlet and an air outlet. The air inlet is corresponding to the air inlet of the car headlight adjustment rod (10), and the air outlet is corresponding to the air outlet of the car headlight adjustment rod (10). One end of the air inlet branch pipe (310) is fixed on the air inlet, and one end of the air outlet branch pipe (320) is fixed on the air outlet.

3. The airtightness detection device for an automotive headlight adjustment rod according to claim 2, characterized in that, The airtightness detection device also includes: The main pressure gauge (410) is connected to the gas source via the main gas pipe. A pressure gauge (420) is installed on the intake manifold (310); An intake solenoid valve (311) is installed on the intake branch pipe (310) and is located between the air pressure gauge (420) and the intake end of the product mounting base (110).

4. The airtightness detection device for an automotive headlight adjustment rod according to claim 3, characterized in that, The airtightness testing device also includes a second pressure gauge (430) connected to the air source; The pressing mechanism (200) includes: The cylinder (210) is connected to the second pressure gauge (430); A pressure solenoid valve (220) is installed between the cylinder (210) and the second pressure gauge (430); and The lower pressure plate (230) is installed on the output shaft of the cylinder (210).

5. The airtightness detection device for an automotive headlight adjustment rod according to claim 4, characterized in that, There are two cylinders (210), which are respectively connected to both ends of the lower pressure plate (230).

6. The airtightness detection device for an automotive headlight adjustment rod according to claim 5, characterized in that, The airtightness testing device also includes two guide rods (510) disposed between two cylinders (210). The two guide rods (510) are respectively mounted on the frame (100). The two ends of the lower pressure plate (230) are respectively sleeved on the outer periphery of the two guide rods (510) and slidably connected to the guide rods (510).

7. The airtightness detection device for an automotive headlight adjustment rod according to claim 5, characterized in that, The cylinder (210) includes an output shaft and a disk fixed to the outer periphery of the output shaft. A first inductive switch (610) for detecting the height position of the disk is installed inside the cylinder (210).

8. The airtightness detection device for an automotive headlight adjustment rod according to claim 5, characterized in that, A sensor is mounted on the output shaft; The airtightness detection device also includes a second inductive switch (620), which is mounted on the frame (100) and used to sense the height position of the sensor.

9. The airtightness detection device for an automotive headlight adjustment rod according to claim 2, characterized in that, The airtightness testing device also includes a transverse electromagnetic cylinder (710), which is slidably mounted on the frame (100) and is used to connect with a paintbrush, which is used to mark the unqualified automotive headlight adjustment rod (10).

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