CN218994697U

CN218994697U - Optical rapid detection equipment for automobile side marker lamp

Info

Publication number: CN218994697U
Application number: CN202223354521.6U
Authority: CN
Inventors: 吴杰; 朱涛; 丰建芬; 薛梦萍
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-09
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses an optical rapid detection device of an automobile side marker lamp, which comprises a machine shell, wherein a lamp irradiation area and a lamplight detection area which is arranged opposite to the lamp irradiation area are arranged on the machine shell, and a plurality of detection points are arranged on the lamplight detection area; each detection point is provided with an optical fiber clamping mechanism for clamping an optical fiber head, the front end of the optical fiber head is arranged towards the illumination area of the lamp, and the front end of the optical fiber head is provided with a cosine corrector; the shell is provided with a photoelectric sensing module, and the rear end of the optical fiber head is connected with the input end of the photoelectric sensing module through a light guide optical fiber. The utility model provides an optical rapid detection device for an automobile side marker lamp, which can be used for arranging a plurality of illuminometer probes in a smaller space so that the regulation points of lamps can be measured simultaneously.

Description

Optical rapid detection equipment for automobile side marker lamp

Technical Field

The utility model relates to optical rapid detection equipment for an automobile side marker lamp, and belongs to the field of optical online rapid detection of automobile lamps.

Background

Currently, as quality requirements for automotive lamp manufacturing become more stringent for each automotive manufacturer, especially with respect to the management of optical quality. The enough optical requirement allowance is difficult to obtain in a limited design space, and the optical performance is greatly affected due to the problems of optical production consistency, such as light source patch precision, reflector injection molding precision and the like, so that some bad parts can appear in the production process. In order to intercept the bad parts and avoid them flowing out of the factory, it is necessary to add an optical rapid detection device in the production.

The design of the optical rapid detection equipment in the current market adopts a scheme of matching an industrial camera or an imaging brightness meter with a lens, and the scheme has the advantages that the multi-point rapid measurement can be realized, but the measurement error is extremely large. In luminaire testing where the margin of certain luminaire optical legislation points is small, false detection is easily occurred. Therefore, a designer proposes a scheme of removing a lens and directly measuring by using an illuminometer array, and the measurement result is greatly improved, but because the probes of the illuminometer are generally large, the measurement space interval is insufficient to arrange two probes, and the two probes cannot be used for some similar regulation points in a plane, so that the values of the two regulation points cannot be directly and simultaneously measured at a time, and the beat of equipment is affected.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing an optical rapid detection device for an automobile side marker lamp, wherein a plurality of illuminometer probes can be arranged in a smaller space, so that the regulation points of the lamp can be measured simultaneously.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the optical rapid detection device of the automobile side marker lamp comprises a shell, wherein a lamp irradiation area and a lamplight detection area which is arranged opposite to the lamp irradiation area are arranged on the shell, and a plurality of detection points are arranged on the lamplight detection area;

each detection point is provided with an optical fiber clamping mechanism for clamping an optical fiber head, the front end of the optical fiber head is arranged towards the illumination area of the lamp, and the front end of the optical fiber head is provided with a cosine corrector;

the shell is provided with a photoelectric sensing module, and the rear end of the optical fiber head is connected with the input end of the photoelectric sensing module through a light guide optical fiber.

Further, an upper computer is arranged on the shell, and the output end of the photoelectric sensing module is electrically connected with the upper computer.

Further, a programmable power supply is arranged on the shell and electrically connected with the upper computer, and the programmable power supply is used for supplying power to the lamp to be tested.

Further, a display alarm module is arranged on the shell and is electrically connected with the upper computer and used for displaying a test result and giving an alarm.

Further, the detection points are provided with 9, and the 9 detection points are arranged in a 3×3 array.

Further, the optical fiber clamping mechanism comprises an optical fiber clamp, the upper end and the lower end of the optical fiber clamp are fixedly connected with the backboard of the shell through screws, and the optical fiber head is clamped and fixed in the optical fiber clamp.

Further, the optical fiber clamping mechanism comprises a mechanical arm, wherein the optical fiber head is clamped on the mechanical arm, and the mechanical arm is used for moving the optical fiber head to each detection point.

Further, the optical fiber clamping mechanism comprises a two-dimensional motor platform, an optical fiber head is clamped on the two-dimensional motor platform, and the two-dimensional motor platform is used for moving the optical fiber head to each detection point.

By adopting the technical scheme, the scheme of the illuminometer array is optimized, 9 detection points are arranged according to the 3 multiplied by 3 array, enough measurement space intervals are reserved, and a plurality of illuminometer probes can be simultaneously arranged in a smaller space, so that the lamp regulation points can be measured simultaneously. The structure is relatively simple, distortion caused by a lens is avoided, measurement accuracy is improved, measurement spatial resolution is improved, light intensity and color temperature data of a test point of a lamp can be obtained rapidly and accurately after standard lamp alignment, and influence of heat of a light source is considered during data analysis.

Drawings

FIG. 1 is a front view of an optical rapid detection apparatus of an automotive side sign lamp of the present utility model;

FIG. 2 is a schematic diagram of a light guide fiber connection according to the present utility model;

FIG. 3 is a schematic diagram illustrating the installation of an optical fiber head according to a first embodiment of the present utility model;

FIG. 4 is a schematic view of an installation of a fiber optic clamp according to a first embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating a mechanical arm according to a second embodiment of the present utility model;

FIG. 6 is a schematic diagram illustrating the installation of a fiber optic head according to a second embodiment of the present utility model;

FIG. 7 is a schematic diagram of the installation of a two-dimensional motor platform according to a third embodiment of the present utility model;

fig. 8 is a schematic diagram of the installation of a fiber optic head according to a third embodiment of the present utility model.

Detailed Description

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Example 1

As shown in fig. 1 to 4, the present embodiment provides an optical rapid detection device for an automobile side marker light, which includes a housing 9, wherein a light irradiation area a and a light detection area b opposite to the light irradiation area a are provided on the housing 9, the light irradiation area a is used for placing an automobile side marker light 6 to be detected, and the automobile side marker light 6 is irradiated to the light detection area b after being electrified.

As shown in fig. 2 and 3, 9 detection points are disposed on the light detection area b in this embodiment, and the 9 detection points are arranged in a 3×3 array, so that light intensity and chromaticity information of the 9 points can be measured simultaneously.

Each detection point is provided with an optical fiber clamping mechanism for clamping the optical fiber head 21, the front end of the optical fiber head 21 is arranged towards the lamp irradiation area a, the front end of the optical fiber head 21 is provided with a cosine corrector 22, the cosine corrector 22 can reduce the influence of the angle between the geometric center connecting line of the measurement point and the lamp and the plane of the optical fiber port on the measurement result, and even if the light irradiated by the lamp is not over against the optical fiber head 21, the light receiving is not influenced. The shell 9 is provided with a photoelectric sensing module 3 and an upper computer 4, the rear end of the optical fiber head 21 is connected with the input end of the photoelectric sensing module 3 through the light guide optical fiber 2, and the output end of the photoelectric sensing module 3 is electrically connected with the upper computer 4.

The light guide optical fiber 2 is responsible for collecting light rays irradiated by the lamp, is connected with the photoelectric sensing module 3, transmits the light rays to the photoelectric sensing module 3, can measure light intensity and chromaticity information of 9 points simultaneously, and the photoelectric sensing module 3 is responsible for detecting light intensity and color temperature information of a light signal, is electrically connected with the upper computer 4 and is controlled by the upper computer 4. The photoelectric sensing module 3 mainly comprises a photoelectric sensor, an analog-to-digital conversion and data processing module and a communication module, the photoelectric sensor is mainly responsible for receiving optical signals, converting the optical signals into electric signals, each light guide optical fiber 2 is correspondingly connected with one photoelectric sensor, a red wave band filter, a green wave band filter and a blue wave band filter are respectively arranged in front of the photoelectric sensor, and after accurate color coordinate calculation calibration is used, the color coordinate can be measured while the light intensity is measured. The analog-to-digital conversion and data processing module is mainly responsible for signal analog-to-digital conversion, data correction processing and the like. The communication module is responsible for communicating with the upper computer 4 and transmitting the measurement data to the upper computer 4.

As shown in fig. 1, a programmable power supply 1 is disposed on a casing 9 of the present embodiment, the programmable power supply 1 is electrically connected with an upper computer 4, the programmable power supply 1 is used for supplying power to an automobile side sign lamp 6, and the programmable power supply 1 is controlled by the upper computer 4 and is responsible for controlling the on/off of the automobile side sign lamp 6.

As shown in fig. 1, a casing 9 of the present embodiment is provided with a display alarm module 5, and the display alarm module 5 is electrically connected to the host computer 4, and is used for displaying a test result and giving an alarm. The display alarm module 5 mainly comprises a display screen, a red-green LED indicator light and a sound alarm, and is responsible for displaying corresponding data and qualified states; when the judgment is qualified, the green LED indicator light is turned on, the sound alarm does not respond, and when the judgment is unqualified, the red LED indicator light is turned on, and the sound alarm responds and sounds an alarm. The transparent glass 7 is mainly responsible for blocking the entry of the soot layer into the apparatus.

As shown in fig. 4, the optical fiber clamping mechanism of the present embodiment includes an optical fiber clamp 81, and the upper and lower ends of the optical fiber clamp 81 are fixedly connected with the back plate of the housing 9 by screws, so that the optical fiber head 21 is clamped and fixed in the optical fiber clamp 81. The 9 optical fiber clamps 81 are arranged in a 3×3 array, so that enough measurement space is reserved, and a plurality of probes of illuminometers can be simultaneously arranged for measurement.

Example two

As shown in fig. 5 and 6, the optical fiber clamping mechanism of this embodiment may further adopt a mechanical arm 82, the optical fiber head 21 is clamped on the mechanical arm 82, the optical fiber probe is fixed at the front end of the mechanical arm and is pressed on the mechanical arm 82 by the fixing ring 821, so that the mechanical arm 82 can drive the optical fiber probe to act, move the optical fiber head 21 to each detection point, and orient the front end of the optical fiber head 21 towards the automobile side sign lamp 6. Therefore, not only can enough space be reserved for the illuminometer probe, but also the purpose of measuring a plurality of points by using a single optical fiber can be realized.

Example III

As shown in fig. 7 and 8, the optical fiber clamping mechanism of this embodiment may further adopt a two-dimensional motor platform 83, where the optical fiber head 21 is mounted on the two-dimensional motor platform 83 and is pressed by a fixing base 831, where the two-dimensional motor platform 83 is composed of a horizontal motor screw nut pair and a vertical motor screw nut pair, and can drive the optical fiber head 21 to move up and down, left and right, so as to move the optical fiber head 21 to each detection point, and the front end of the optical fiber head 21 faces the automobile side sign lamp 6. Therefore, not only can enough space be reserved for the illuminometer probe, but also the purpose of measuring a plurality of points by using a single optical fiber can be realized.

The working principle of the utility model is as follows:

firstly, the upper computer 4 controls the output parameters of the programmable power supply 1, then controls the photoelectric sensing module 3, measures and obtains the initial background light intensity value of each detection point, and transmits the initial background light intensity value to the upper computer 4, if the upper computer 4 receives an error signal, the step is continuously executed once, then the upper computer 4 controls the programmable power supply 1 to output current, the automobile side sign lamp 6 is lightened, if the upper computer 4 receives an error signal, the step is continuously executed once, the light emitted by the automobile side sign lamp 6 is transmitted to the photoelectric sensing module 3 through the light guide optical fiber 2, then the upper computer 4 controls the photoelectric sensing module 3 to measure, sequentially measures and samples each point, and continuously executes 20 times, thus each detection point has 20 measured values including the light intensity value and the chromaticity value, the 20 groups of measured values are transmitted to the upper computer 4, finally the upper computer 4 turns off the programmable power supply 1, and simultaneously processes the sampled data. In the data processing, the corresponding initial background light intensity values are subtracted from 20 groups of measured light intensity values to obtain new 20 groups of light intensity data, then the attenuation speed (the sampling time is fixed, therefore, the attenuation speed is the difference value of adjacent data of the same point) of the 20 groups of light intensity data is calculated, and the least square fitting is carried out on the attenuation speed and the standard light intensity attenuation speed (the illuminance value measured by a standard lamp in a darkroom is calculated) stored in the upper computer 4, so that the ratio between the light intensity stable value and the measured light intensity value of each point can be obtained, the stable light intensity value of each measured point can be further obtained, and meanwhile, the chromaticity value of the measured point is taken out to be analyzed, so that the qualification of the optical performance is judged.

The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. An optical rapid detection device for an automobile side marker lamp is characterized in that: the device comprises a machine shell (9), wherein a lamp irradiation area (a) and a lamplight detection area (b) which is arranged opposite to the lamp irradiation area (a) are arranged on the machine shell (9), and a plurality of detection points are arranged on the lamplight detection area (b);

each detection point is provided with an optical fiber clamping mechanism for clamping an optical fiber head (21), the front end of the optical fiber head (21) is arranged towards a lamp irradiation area (a), and the front end of the optical fiber head (21) is provided with a cosine corrector (22);

the photoelectric sensing device is characterized in that the shell (9) is provided with a photoelectric sensing module (3), and the rear end of the optical fiber head (21) is connected with the input end of the photoelectric sensing module (3) through the light guide optical fiber (2).

2. The optical rapid detection apparatus of a car side marker light according to claim 1, characterized in that: the shell (9) is provided with an upper computer (4), and the output end of the photoelectric sensing module (3) is electrically connected with the upper computer (4).

3. The optical rapid detection apparatus of a car side marker light according to claim 2, characterized in that: the machine shell (9) is provided with a programmable power supply (1), the programmable power supply (1) is electrically connected with the upper computer (4), and the programmable power supply (1) is used for supplying power to the lamp to be tested.

4. The optical rapid detection apparatus of a car side marker light according to claim 2, characterized in that: the machine shell (9) is provided with a display alarm module (5), and the display alarm module (5) is electrically connected with the upper computer (4) and is used for displaying a test result and giving an alarm.

5. The optical rapid detection apparatus of a car side marker light according to claim 1, characterized in that: and a plurality of detection points are arranged in an array.

6. The optical rapid detection apparatus of a car side marker light according to claim 1, characterized in that: the optical fiber clamping mechanism comprises an optical fiber clamp (81), the upper end and the lower end of the optical fiber clamp (81) are fixedly connected with the back plate of the machine shell (9) through screws, and the optical fiber head (21) is clamped and fixed in the optical fiber clamp (81).

7. The optical rapid detection apparatus of a car side marker light according to claim 1, characterized in that: the optical fiber clamping mechanism comprises a mechanical arm (82), an optical fiber head (21) is clamped on the mechanical arm (82), and the mechanical arm (82) is used for moving the optical fiber head (21) to each detection point.

8. The optical rapid detection apparatus of a car side marker light according to claim 1, characterized in that: the optical fiber clamping mechanism comprises a two-dimensional motor platform (83), an optical fiber head (21) is clamped on the two-dimensional motor platform (83), and the two-dimensional motor platform (83) is used for moving the optical fiber head (21) to each detection point.