A detection device for detecting both air tightness and refraction of an automobile lamp and an operating method thereof

Abstract

A kind of detecting equipment for detecting automobile lamp air-tight and optometry dual-purpose, including the tooling fixture of positioning automobile lamp, air-tight detection mechanism located above tooling fixture, optometry detection mechanism located below tooling fixture;Air-tight detection mechanism includes lifting plate driven by servo motor and multiple lifting, air-tight detection head installed below lifting plate and pushed to automobile lamp inflation interface by air cylinder, air-tight detection head includes internal inflation inner cavity connected with air pump, is surrounded and has sealing lamination effect sealing part, is located in the center of a circle sealing part and is connected with internal inflation inner cavity inflation port, from the electric connector of inflation port;Tooling fixture includes workbench, workbench is opened and is passed through to optometry detection mechanism through slot, and light transmission plate is installed in through slot;Optometry detection mechanism includes the camera for optometry detection, camera is against light transmission plate.

Description

TECHNICAL FIELD

[0001] The present application relates to vehicle lamp inspection equipment, in particular to a detection equipment for detecting both air tightness and optical power of vehicle lamp. BACKGROUND

[0002] In the online production of vehicle lamp, the key detection procedures are CCD vision optical power detection and air tightness leakage detection. According to the product detection requirements, the traditional production mode is to separately detect the air tightness and the optical power, so that the vehicle lamp is sequentially detected for air tightness and optical power, which prolongs the production time of the vehicle lamp and greatly reduces the production efficiency.

[0003] In the air tightness and optical power simultaneous detection, the lighting wire harness and the air tightness sealing port of some products are at the same position. In this case, the product needs to be manually inserted into position while sealing to continue the optical power detection.

[0004] Therefore, there is an urgent need for a detection equipment that can effectively seal the vehicle lamp for air tightness detection and also meet the optical power detection requirements for optical power detection. SUMMARY

[0005] The present application solves the problems existing in the prior art and provides a detection equipment for detecting both air tightness and optical power of vehicle lamp, which can simultaneously detect the air tightness and the optical power, greatly improving the production efficiency of the vehicle lamp.

[0006] The technical solution adopted by the present application to solve the technical problem is that the detection equipment for detecting both air tightness and optical power of vehicle lamp includes a fixture clamp for positioning the vehicle lamp, an air tightness detection mechanism located above the fixture clamp, and an optical power detection mechanism located below the fixture clamp.

[0007] The air tightness detection mechanism includes a lifting plate driven by a servo motor and lifted in multiple sections, an air tightness detection head installed below the lifting plate and pushed to the air charging interface of the vehicle lamp by a gas cylinder. The air tightness detection head includes an internal charging cavity connected with a gas pump, a sealing part surrounding a circle and having a sealing effect, a charging port located at the center of the circle of sealing parts and connected with the internal charging cavity, and an electric connection head passing through the charging port.

[0008] The fixture clamp includes a workbench, the workbench has a through slot passing through the optical power detection mechanism, and a light transmission plate is installed in the through slot.

[0009] The optical power detection mechanism includes a camera for optical power detection, and the camera faces the light transmission plate.

[0010] Preferably, a limiting mechanism for controlling the descending position of the lifting plate is installed between the lifting plate and the workbench; the limiting mechanism comprises a downward pressing rod fixed on the lifting plate and extending downward, and a travel switch fixed on the workbench, the position of the downward pressing rod corresponds to the position of the travel switch.

[0011] Preferably, the air tightness detection mechanism further comprises an upper rack for installing the lifting plate and a table panel fixed at the bottom end of the upper rack, a plurality of vertically arranged sliding columns are fixed on the table panel, the lifting plate is slidingly installed on the sliding columns, a fixed plate is installed at the top of the sliding columns, an electric push rod driven by a servo motor is installed on the fixed plate, the movable end of the electric push rod penetrates the fixed plate from top to bottom and is connected to the lifting plate.

[0012] Preferably, the air cylinder is fixedly installed at the lower end surface of the lifting plate, and the piston end of the air cylinder is fixedly connected to the air tightness detection head.

[0013] Preferably, the sealing part comprises an elastic sealing layer installed at the lower end surface of the air tightness detection head and arranged around the internal inflation inner cavity, the inflation port is arranged at the center position on the inner side of the elastic sealing layer, and a plurality of connecting notches extending outward are arranged around the inflation port.

[0014] Preferably, the lifting plate is provided with an air tightness plug, the air tightness plug comprises an auxiliary mounting seat installed on the lifting plate, an extension mechanism installed on the auxiliary mounting seat, and a pressing plug installed on the movable end of the extension mechanism.

[0015] Preferably, the electric connector comprises an electric connector plug movably arranged below the inflation port, and a connecting wire electrically connected to one end of the electric connector plug, the other end of the connecting wire is electrically connected to a signal socket sealingly installed on the air tightness detection head.

[0016] Preferably, the upper rack is provided with a lower rack located below the workbench, the lower rack surrounds the light shielding cavity, and the camera is installed on the inner side of the light shielding cavity.

[0017] Preferably, an operation method of a detection device for detecting the air tightness and optometry of an automobile lamp is provided, and the steps are as follows:

[0018] S1 placing the automobile lamp: the automobile lamp to be detected is installed on the work fixture with the inflation interface of the automobile lamp facing upward and the light emitting surface facing downward, so that the light emitting end of the automobile lamp faces the side of the light transmission plate;

[0019] S2 first stage descending: the detection device is started, the air tightness detection mechanism is driven by the servo motor to descend for the first stage and then stop, at this time, the air tightness detection mechanism descends to the electric connection position close to the inflation interface of the automobile lamp, and then the electric connector is connected to the lighting wire harness on the back of the automobile lamp to be detected.

[0020] S3 second section down: start the detection device again, at this time the airtight detection mechanism is driven by the servo motor to stop after the second section down, at this time the airtight detection mechanism further approaches to the car lamp inflation interface, the distance between the airtight detection mechanism and the car lamp inflation interface is less than or equal to the stroke of the cylinder piston end;

[0021] S4 to be detected car lamp sealing: the cylinder drives the airtight detection head to push the car lamp inflation interface, until the sealing part on the airtight detection head is pressed and sealed outside the car lamp inflation interface, so that the car lamp inflation interface is sealed;

[0022] S5 airtight and optometry detection: the gas pump works to make the gas fill into the detected car lamp through the internal inflation cavity and the inflation port, until the internal inflation cavity reaches a certain air pressure, then the gas pump stops working, and the real-time air pressure of the internal inflation cavity is detected through the sensor; at the same time, the detected car lamp is powered on through the electric connection head, and the camera records the light emission of the detected car lamp;

[0023] S6 detection completion reset: the airtight detection mechanism is driven by the servo motor to move upward by the first section of reset displacement, and stops when moving to the electric connection position, at this time the electric connection head is pulled off from the plug on the back of the detected car lamp; start the detection device again, and the airtight detection mechanism is driven by the servo motor to move upward by the second section of reset displacement to the initial position.

[0024] The beneficial effects of the present application are: the present application is provided with a positioning car lamp fixture, an airtight detection mechanism above the fixture, and an optometry detection mechanism below the fixture, which can realize accurate positioning of the car lamp during airtight detection, so that the optometry detection of the car lamp can be carried out at the same time, thereby greatly improving the production efficiency of the car lamp; and the airtight detection mechanism includes an airtight detection head with an electric connection head, which can realize the connection of the car lamp lighting wire harness while plugging the car lamp inflation interface, and the structure is more reasonable and the operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the present application;

[0026] Figure 2 It is a front view of the present application;

[0027] Figure 3 It is a structural schematic view of the airtight detection device;

[0028] Figure 4 It is a structural schematic view of the airtight detection head;

[0029] Figure 5 It is a structural schematic view of the optometry detection mechanism.

[0030] Explanation of reference signs: 1, tool fixture, 2, air tightness detection mechanism, 3, optometry detection mechanism, 3-1, camera, 2-1, lifting plate, 4, air cylinder, 2-2, air tightness detection head, 2-2-1, internal inflation inner cavity, 2-2-2, sealing part, 2-2-3, inflation port, 2-2-4, electric connector, 1-1, workbench, 1-2, through slot, 1-3, light transmission plate, 1-4, support frame, 1-5, sealing plate, 5, down rod, 6, travel switch part, 2-3, upper rack, 2-4, table plate, 2-5, sliding column, 2-6, fixed plate, 7, electric push rod, 8, elastic sealing layer, 9, connection notch, 10, air tightness plug, 10-1, auxiliary mounting seat, 10-2, telescopic mechanism, 10-3, pressing plug, 11, electric connection plug, 12, connection wire, 13, signal socket, 14, lower rack, 15, light shielding cavity, 16, control system, 17, control button, 17-1, up start button, 17-2, down start button. DETAILED DESCRIPTION

[0031] The application will be further described below in combination with the drawings:

[0032] The existing automobile lamp needs to fill inert gas into the automobile lamp when in use, so as to increase the service life and luminous brightness of the automobile lamp. Therefore, the sealing property of the automobile lamp needs to be detected during processing. In the embodiment, the back surface of the automobile lamp to be detected is provided with an automobile lamp inflation interface for connecting the lamp wire and communicating with the inside of the automobile lamp. The back surface of the automobile lamp to be detected is also provided with a lighting wire harness located in the automobile lamp inflation interface and connected with the automobile lamp through the wire. In order to detect the sealing property of the automobile lamp in this process step, the automobile lamp inflation interface on the back surface of the automobile lamp needs to be sealed during detection.

[0033] Referring to the drawings: the detection equipment for detecting the air tightness and optometry of the automobile lamp in the embodiment comprises a tool fixture 1 for positioning the automobile lamp, an air tightness detection mechanism 2 located above the tool fixture 1, and an optometry detection mechanism 3 located below the tool fixture 1.

[0034] The tool fixture 1 is used for positioning and installing the automobile lamp to be detected. The air tightness detection mechanism 2 is used for sealing and inflating the automobile lamp to be detected, and detecting the real-time change of the air pressure in the automobile lamp to reflect the air tightness of the automobile lamp. At the same time, the optometry detection mechanism 3 is used for optometry detection of the automobile lamp to be detected. Thus, the air tightness and optometry of the automobile lamp can be detected at the same time, and the automobile lamp works under a certain air pressure, which is closer to the actual use scene of the automobile lamp and can make the optometry detection result more accurate.

[0035] Specifically, the air tightness detection mechanism 2 in the embodiment includes a lifting plate 2-1 driven by a servo motor and lifted in multiple sections, and an air tightness detection head 2-2 installed below the lifting plate 2-1 and pushed to the automobile lamp inflation interface by the air cylinder 4, the lifting plate 2-1 is driven to move up and down in multiple strokes by the electric push rod driven by the servo motor.

[0036] Specifically, the air tightness detection head 2-2 in the embodiment includes an internal inflation cavity 2-2-1 connected with an air pump, a sealing part 2-2-2 surrounding a circle and having a sealing lamination effect, an inflation port 2-2-3 located at the center of the circle of the sealing part 2-2-2 and communicated with the internal inflation cavity 2-2-1, and an electric connector 2-2-4 passing out from the inflation port 2-2-3; wherein the air pump is communicated with the internal inflation cavity 2-2-1 through a connecting pipeline, the shape of the air tightness detection head 2-2 can correspond to the shape of the interface of the automobile lamp, the internal inflation cavity 2-2-1 is arranged in the air tightness detection head 2-2, the sealing part 2-2-2 is lapped below the air tightness detection head 2-2 for extrusion contact sealing with the automobile lamp inflation interface on the back of the automobile lamp when the air tightness detection head 2-2 moves downward, and then the inside of the automobile lamp is communicated with the internal inflation cavity 2-2-1 through the inflation port 2-2-3, the internal inflation cavity 2-2-1 is inflated by the air pump, so that the gas is filled into the inside of the automobile lamp through the inflation port 2-2-3 and the automobile lamp inflation interface.

[0037] The tool fixture 1 in the embodiment is a support frame 1-4 corresponding to the profile of the periphery of the automobile lamp to be detected and a sealing plate 1-5 connected and arranged between the support frames 1-4, the support frame 1-4 is used for supporting and fixing the automobile lamp to be detected, and the sealing plate 1-5 surrounds and seals the light emitting side of the automobile lamp to be detected to avoid light leakage; wherein the tool fixture 1 further includes a workbench 1-1, the workbench 1-1 is provided with a through groove 1-2 penetrating to the optometry detection mechanism 3, and a light transmission plate 1-3 is installed in the through groove 1-2; the optometry detection mechanism 3 in the embodiment includes a camera 3-1 for optometry detection, the camera 3-1 can be a CCD industrial camera, and the camera 3-1 faces the light transmission plate 1-3; during optometry detection, the camera 3-1 records the light emitting effect of the automobile lamp to be detected through the light transmission plate 1-3.

[0038] Further, in order to ensure that the lifting plate 2-1 does not exceed the specified limit position when descending, the embodiment is provided with a limiting mechanism between the lifting plate 2-1 and the workbench 1-1 to control the descending position of the lifting plate 2-1. Specifically, the limiting mechanism in the embodiment includes a downwardly extending pressing rod 5 fixed on the lifting plate 2-1 and a travel switch piece 6 fixed on the workbench 1-1. The positions of the pressing rod 5 and the travel switch piece 6 correspond to each other. The pressing rod 5 and the travel switch piece 6 can be designed in several numbers. In the embodiment, the pressing rod 5 and the travel switch piece 6 are respectively provided with four and are uniformly designed around the tool fixture 1. The travel switch piece 6 is a limiting rod fixed on the workbench 1-1 and extending upward. The pressing rod 5 contacts and limits the travel switch piece 6 when the lifting plate 2-1 is lowered to the limit position. Further, the lower end of the pressing rod 5 is provided with a socket, and the upper end of the limiting rod is provided with a plug corresponding to the socket. When reaching the specified position, the plug on the limiting rod gradually inserts into the socket of the pressing rod 5, realizing the limiting in the vertical direction and also in the horizontal direction, thereby ensuring that the positioning accuracy of the lifting plate 2-1 in the descending detection process is more accurate, and ensuring that the air-tight detection head 2-2 on the lifting plate 2-1 can accurately seal the air inflating interface of the automobile lamp to be detected.

[0039] The air-tight detection mechanism 2 in the embodiment further includes an upper rack 2-3 for installing the lifting plate 2-1 and a table panel 2-4 fixed at the bottom end of the upper rack 2-3. A plurality of vertically arranged sliding columns 2-5 are fixed on the table panel 2-4. The lifting plate 2-1 is slidingly installed on the sliding columns 2-5. The top of the sliding columns 2-5 is provided with a fixed plate 2-6. An electric push rod 7 driven by a servo motor is installed on the fixed plate 2-6. The movable end of the electric push rod 7 penetrates the fixed plate 2-6 from top to bottom and is connected to the lifting plate 2-1. In use, the lifting plate 2-1 slides up and down outside the sliding columns 2-5 through the up-and-down movement of the movable end of the electric push rod 7, thereby further improving the position accuracy of the lifting plate 2-1.

[0040] In this embodiment, in order to ensure the sealing performance of the airtight detection head 2-2 when it contacts with the automobile lamp inflation interface, the lifting plate 2-1 is first driven to move to the position close to the automobile lamp inflation interface by the electric push rod 7 before the automobile lamp inflation interface is sealed. Since the airtight detection head 2-2 is sealed by extrusion with the automobile lamp inflation interface in this embodiment, a large pressing force is generated on the airtight detection head 2-2 during the sealing process. Therefore, the airtight detection head 2-2 installed on the lifting plate 2-1 is driven to move by the air cylinder 4 for the last time. The airtight detection head 2-2 is pressed on the outside of the automobile lamp inflation interface by the air cylinder 4, so that the sealing part 2-2-2 installed below the airtight detection head 2-2 is in close contact with the four sides of the automobile lamp inflation interface to achieve extrusion sealing. Specifically, the air cylinder 4 is fixedly installed on the lower end surface of the lifting plate 2-1, and the piston end of the air cylinder 4 is fixedly connected with the airtight detection head 2-2. Then, the lifting plate 2-1 drives the air cylinder 4 and the airtight detection head 2-2 to move up and down as a whole, and finally the air cylinder 4 is used for local displacement.

[0041] Further, in order to accommodate the electric connector 2-2-4 during detection, the internal inflation inner cavity 2-2-1 is arranged in the airtight detection head 2-2 from bottom to top in this embodiment. The sealing part 2-2-2 includes an elastic sealing layer 8 installed on the lower end surface of the airtight detection head 2-2 and arranged around the internal inflation inner cavity 2-2-1. The inflation port 2-2-3 is arranged at the center position on the inner side of the elastic sealing layer 8. Then, the electric connector 2-2-4 can be accommodated in the internal inflation inner cavity 2-2-1 after being connected with the lighting wire harness on the vehicle lamp to be detected. Further, in order to avoid that the electric connector 2-2-4 is in contact with the sealing part 2-2-2 during the downward sealing of the airtight detection head 2-2, the sealing part 2-2-2 is pulled inward, which affects the sealing effect. If the size of the inflation port 2-2-3 is increased, the sealing part 2-2-2 for extrusion sealing between the airtight detection head 2-2 and the four sides of the automobile lamp inflation interface may be reduced, thereby affecting the sealing performance. In this embodiment, the connection cutout 9 extending outward is arranged around the inflation port 2-2-3. When the airtight detection head 2-2 is sealed by moving downward, the electric connector 2-2-4 will deform the corresponding part of the sealing part 2-2-2 upward when it is in contact with the sealing part 2-2-2, so that the sealing part 2-2-2 is not pulled inward. At the same time, it is ensured that there is sufficient sealing part 2-2-2 between the airtight detection head 2-2 and the four sides of the automobile lamp inflation interface for extrusion sealing connection.

[0042] Specifically, the electric connector 2-2-4 in the embodiment includes an electric connector plug 11 movably arranged below the inflation port 2-2-3 and a connecting wire 12 electrically connected to one end of the electric connector plug 11, the electric connector plug 11 can be connected with a lighting wire harness at the back of the vehicle lamp to be detected, and the other end of the corresponding connecting wire 12 is electrically connected to a signal socket 13 sealingly mounted on the air-tight detection head 2-2, and a wire harness plug connected with a power source is inserted into the signal socket 13 for electrical connection.

[0043] The existing vehicle lamp to be detected can also be provided with an air outlet for releasing the gas in the vehicle lamp, so that in order to realize complete sealing during detection of the vehicle lamp to be detected, a structure for plugging the air outlet can also be provided in the application; specifically, the lifting plate 2-1 is provided with an air-tight plug 10 corresponding to the air outlet, the air-tight plug 10 includes an auxiliary mounting seat 10-1 mounted on the lifting plate 2-1, a telescopic mechanism 10-2 mounted on the auxiliary mounting seat 10-1, and a pressing plug 10-3 mounted on the movable end of the telescopic mechanism 10-2, and the telescopic mechanism 10-2 in the embodiment can also be a telescopic cylinder, which drives the pressing plug 10-3 to move; while the air-tight detection head 2-2 is pushed to the side of the vehicle lamp inflation port by the cylinder 4, the pressing plug 10-3 is stretched out to the air outlet and pressed to seal the outside of the air outlet by the telescopic mechanism 10-2, thereby realizing plugging and sealing of the air outlet.

[0044] As shown in Figure 2 and 5 , in order to further improve the detection result of the vehicle lamp optometry detection, a lower rack 14 located below the workbench 1-1 is arranged on the upper rack 2-3, the lower rack 14 surrounds the light shielding to form a light shielding cavity, and the camera 3-1 is installed on the inside of the light shielding cavity, so that the camera 3-1 can only receive the light emitted downward from the light transmission plate 1-3 when it is used for shooting, thereby avoiding the influence of stray light on the detection result.

[0045] As shown in Figure 1 and 2 , a control system 16 and a control button 17 connected with the control system 16 are arranged on the upper rack 2-3; wherein the control button 17 in the embodiment includes an up-start button 17-1 and a down-start button 17-2.

[0046] An operation method of a detection device for detecting air tightness and optometry of a vehicle lamp, the steps of which are as follows:

[0047] S1: placing the vehicle lamp, the vehicle lamp inflation port of the vehicle lamp to be detected is installed on the work fixture 1 with the light emitting surface downward, so that the light emitting end of the vehicle lamp faces the side of the light transmission plate 1-3;

[0048] S2 first section down: press down the down start button 17-2, start the detection equipment, the airtight detection mechanism 2 is driven by the servo motor to carry out the first section down and stop, at this time the airtight detection mechanism 2 is lowered to the electric connection position close to the car lamp inflation interface, the electric connection head 2-2-4 is connected with the lighting wire harness on the back of the car lamp to be detected by manual;

[0049] S3 second section down: press down the down start button 17-2 again, start the detection equipment again, at this time the airtight detection mechanism 2 is driven by the servo motor to carry out the second section down and stop, at this time the airtight detection mechanism 2 is further close to the car lamp inflation interface, the distance between the airtight detection mechanism 2 and the car lamp inflation interface is less than or equal to the stroke of the piston end of the cylinder 4;

[0050] S4 seal of the car lamp to be detected: the cylinder 4 drives the airtight detection head 2-2 to push the car lamp inflation interface until the sealing part 2-2-2 on the airtight detection head 2-2 is pressed and sealed on the outside of the car lamp inflation interface, realizing the sealing of the car lamp inflation interface;

[0051] S5 airtight and optometry detection: the gas pump works to make the gas fill into the car lamp to be detected through the internal inflation cavity 2-2-1 and the inflation port 2-2-3, and stop working after a certain gas pressure is reached in the internal inflation cavity 2-2-1, and then detect the real-time gas pressure of the internal inflation cavity 2-2-1 through the sensor; at the same time, the car lamp to be detected is electrified through the electric connection head 2-2-4, and the camera 3-1 records and identifies the light emission of the car lamp to be detected;

[0052] S6 detection completion reset: the airtight detection mechanism 2 is driven by the servo motor to move upward by the first section reset displacement, and stop when the airtight detection mechanism 2 moves to the electric connection position, at this time the electric connection head 2-2-4 is pulled off from the plug on the back of the car lamp to be detected; start the detection equipment again, and the airtight detection mechanism 2 is driven by the servo motor to move upward by the second section reset displacement to the initial position.

[0053] Some words can be used in the specification and claims of the present application to refer to certain products. Those skilled in the art should understand that manufacturers can refer to the same components with different names. It is not intended to distinguish those components with the same function but different names. In the following specification and application patent range, "include", "have" and "contain" and the like are open words, so they should be interpreted as "containing but not limited to".

[0054] The above is the preferred embodiment of the present application, and it should be pointed out that those skilled in the art can make some improvements and refinements without departing from the principles of the present application, and these improvements and refinements are also considered within the protection scope of the present application.

Claims

1. A testing device for both testing the air tightness and optometry of automotive lamps, characterized in that: The utility model provides a kind of automobile lamp detection device, including the fixture clamp (1) of positioning automobile lamp, the airtightness detection mechanism (2) located above fixture clamp (1), the optometry detection mechanism (3) located below fixture clamp (1); The airtightness detection mechanism (2) includes a lifting plate (2-1) driven by a servo motor and lifted in multiple sections, an airtightness detection head (2-2) installed below the lifting plate (2-1) and pushed to the automobile lamp inflation interface by a pneumatic cylinder (4), the airtightness detection head (2-2) includes an internal inflation cavity (2-2-1) connected with a gas pump, a sealing part (2-2-2) surrounding a circle and having a sealing lamination effect, an inflation port (2-2-3) located at the center of the circle of sealing part (2-2-2) and connected with the internal inflation cavity (2-2-1), and an electrical connector (2-2-4) passing out from the inflation port (2-2-3); The fixture clamp (1) includes a workbench (1-1), the workbench (1-1) is provided with a through slot (1-2) penetrating to the optometry detection mechanism (3), and a light transmission plate (1-3) is installed in the through slot (1-2); The optometry detection mechanism (3) includes a camera (3-1) for optometry detection, and the camera (3-1) faces the light transmission plate (1-3); The sealing part (2-2-2) includes an elastic sealing layer (8) installed on the lower end surface of the airtightness detection head (2-2) and arranged around the internal inflation cavity (2-2-1), the inflation port (2-2-3) is arranged at the center position on the inner side of the elastic sealing layer (8), and the inflation port (2-2-3) is provided with a connecting cutout (9) extending outward around the inflation port (2-2-3); The lifting plate (2-1) is provided with an airtight plug (10), the airtight plug (10) includes an auxiliary mounting seat (10-1) mounted on the lifting plate (2-1), an extension mechanism (10-2) mounted on the auxiliary mounting seat (10-1), and a pressing plug (10-3) mounted on the movable end of the extension mechanism (10-2); The fixture clamp (1) further includes support frames (1-4) corresponding to the periphery of the automobile lamp to be detected and a sealing plate (1-5) connected between the support frames (1-4), the support frames (1-4) are used for supporting and fixing the automobile lamp to be detected, and the sealing plate (1-5) surrounds and seals the light-emitting side of the automobile lamp to be detected.

2. The detection device for both airtight photometric and automotive lamp testing according to claim 1, characterized in that: A limiting mechanism for controlling the descending position of the lifting plate (2-1) is installed between the lifting plate (2-1) and the workbench (1-1), and the limiting mechanism includes a downward pressing rod (5) fixed on the lifting plate (2-1) and extending downward and a travel switch (6) fixed on the workbench (1-1), and the positions of the downward pressing rod (5) and the travel switch (6) correspond to each other.

3. The detection device for both airtight photometric and automotive lamp testing according to claim 1 or 2, characterized in that: The airtightness detection mechanism (2) further comprises an upper rack (2-3) for mounting the lifting plate (2-1) and a table plate (2-4) fixed to the bottom end of the upper rack (2-3), a plurality of vertically arranged sliding columns (2-5) are fixed on the table plate (2-4), the lifting plate (2-1) is slidingly mounted on the sliding columns (2-5), and a fixed plate (2-6) is mounted at the top of the sliding columns (2-5), the fixed plate (2-6) is mounted with an electric push rod (7) driven by the servo motor, and the movable end of the electric push rod (7) penetrates the fixed plate (2-6) from top to bottom and is connected to the lifting plate (2-1).

4. The detection device for both airtight photometric and automotive lamp testing according to claim 3, characterized in that: The air cylinder (4) is fixedly installed at the lower end surface of the lifting plate (2-1), and the piston end of the air cylinder (4) is fixedly connected with the airtightness detection head (2-2).

5. The detection device for both airtight photometric and automotive lamp testing according to claim 1, characterized in that: The electric connector (2-2-4) comprises an electric connector plug (11) movably arranged below the inflation port (2-2-3) and a connecting wire (12) electrically connected to one end of the electric connector plug (11), and the other end of the connecting wire (12) is electrically connected with a signal socket (13) sealingly installed on the airtightness detection head (2-2).

6. The detection device for both airtight photometric and automotive lamp testing according to claim 3, characterized in that: The upper rack (2-3) is provided with a lower rack (14) located below the workbench (1-1), the lower rack (14) surrounds the light shielding cavity (15) to form a light shielding cavity (15), and the camera (3-1) is installed on the inner side of the light shielding cavity (15).

7. An operating method of the detection device according to claim 3, comprising the following steps: S1 placing the vehicle lamp: installing the vehicle lamp to be detected on the tool fixture (1) with the inflation port of the vehicle lamp facing upward and the light emitting surface facing downward, so that the light emitting end of the vehicle lamp faces the side of the light transmission plate (1-3); S2 first stage of descending: starting the detection device, and the airtightness detection mechanism (2) is driven by the servo motor to descend for the first stage and then stop, at this time, the airtightness detection mechanism (2) descends to the electric connection position close to the inflation port of the vehicle lamp, and then the electric connector (2-2-4) is connected with the lighting wire harness on the back of the vehicle lamp to be detected; S3 second stage of descending: starting the detection device again, and the airtightness detection mechanism (2) is driven by the servo motor to descend for the second stage and then stop, at this time, the airtightness detection mechanism (2) further approaches the inflation port of the vehicle lamp, and the distance between the airtightness detection mechanism (2) and the inflation port of the vehicle lamp is less than or equal to the stroke of the piston end of the air cylinder (4); S4 sealing the vehicle lamp to be detected: the air cylinder (4) is started to drive the airtightness detection head (2-2) to push the inflation port of the vehicle lamp, until the sealing part (2-2-2) on the airtightness detection head (2-2) is pressed and sealed on the outside of the inflation port of the vehicle lamp, thereby realizing the sealing of the inflation port of the vehicle lamp. S5 air tightness and optometry detection: the air pump works to make the gas fill into the to-be-detected vehicle lamp through the internal inflation inner cavity (2-2-1) and the inflation port (2-2-3), until a certain air pressure is reached in the internal inflation inner cavity (2-2-1), then the air pump stops working, and the real-time air pressure of the internal inflation inner cavity (2-2-1) is detected through the sensor; at the same time, the to-be-detected vehicle lamp is powered on through the electric connection head (2-2-4), and the camera (3-1) records the light emission of the to-be-detected vehicle lamp; S6 detection completion return: the air tightness detection mechanism (2) is driven upward by the servo motor to perform a first return displacement, and stops when the air tightness detection mechanism (2) moves to the electric connection position, at which time the electric connection head (2-2-4) is pulled off from the plug on the back of the to-be-detected vehicle lamp; The detection equipment is started again, and the air tightness detection mechanism (2) is driven upward by the servo motor to perform a second return displacement to the initial position.

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