Light transmittance meter calibration device for motor vehicle inspection

Abstract

The utility model discloses a light transmittance meter calibration device for motor vehicle inspection, which comprises an optical filter supporting table, a first stroke guide rail and a second stroke guide rail, the first stroke guide rail and the second stroke guide rail are respectively positioned on two sides of the optical filter supporting table, and a plurality of T-shaped clamps are mounted on the optical filter supporting table. A standard optical filter is detachably mounted on the T-shaped clamp; a light source installation mechanism is installed at the moving end of the first stroke guide rail and comprises a first lifting driving assembly and a first clamping assembly, the first clamping assembly is fixed to the upper end of the first lifting driving assembly and used for clamping a light source assembly, and a sensing installation mechanism is installed at the moving end of the second stroke guide rail and used for clamping a light source assembly. The sensor mounting mechanism comprises a second lifting driving assembly and a second clamping assembly, the second clamping assembly is fixed to the upper end of the second lifting driving assembly, and the second clamping assembly is used for clamping a light receiving sensor; according to the utility model, the calibration precision and the calibration efficiency are synchronously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light transmittance measurement, in particular to a light transmittance meter calibration device for motor vehicle inspection. Background Art

[0002] The light transmittance of car window glass is usually determined by measuring its light transmittance, which refers to the degree to which light is absorbed and reflected when passing through a material. A common method is to use a photometer or a transmittance meter to measure the light transmittance of car window glass. When measuring, the photometer is placed on one side of the car window, and light is sent through the device, and then the amount of light that passes through the glass is measured. By comparing the intensity of light before and after passing through the glass, the percentage of light transmittance can be calculated. In order to ensure that the transmittance meter used to detect car window glass measures accurate and reliable data during daily use, it needs to be calibrated regularly.

[0003] At present, the calibration equipment used for the transmittance meter in the prior art has the following problems: the existing calibration equipment requires manual alignment of the transmittance meter's light source, standard filter and light receiving sensor one by one during each measurement during calibration, so that the three are kept at the same horizontal line, but multiple manual operations will result in low calibration accuracy and slow calibration efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a transmittance meter calibration device for motor vehicle inspection, which is used to simultaneously improve the calibration accuracy and calibration efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmittance meter calibration device for motor vehicle inspection, comprising a filter support platform, a first travel guide rail and a second travel guide rail, the filter support platform, the first travel guide rail and the second travel guide rail are parallel to each other, the first travel guide rail and the second travel guide rail are respectively located on both sides of the filter support platform, a plurality of T-shaped clamps are installed on the filter support platform, and adjacent T-shaped clamps are evenly spaced and arranged, and standard filters are detachably installed on the T-shaped clamps, and the transmittance reference values ​​of the standard filters are all different;

[0006] A light source installation mechanism is installed on the moving end of the first travel guide rail, and the light source installation mechanism includes a first lifting drive assembly and a first clamping assembly, the first clamping assembly is fixed to the upper end of the first lifting drive assembly, and the first clamping assembly is used to clamp the light source assembly, and a sensor installation mechanism is installed on the moving end of the second travel guide rail, and the sensor installation mechanism includes a second lifting drive assembly and a second clamping assembly, the second clamping assembly is fixed to the upper end of the second lifting drive assembly, and the second clamping assembly is used to clamp the light receiving sensor;

[0007] When the light source mounting mechanism, the sensor mounting mechanism and one of the T-shaped clamps are in the same vertical plane, the first lifting drive assembly and the second lifting drive assembly respectively drive the light source assembly and the light receiving sensor to lift and lower until the center positions of the light source assembly, the light receiving sensor and one of the standard filters are in the same horizontal line.

[0008] Furthermore, the T-shaped fixture is provided with a digital display window for displaying a transmittance reference value of the standard filter.

[0009] Furthermore, a first magnetic component is disposed at the upper end of the T-shaped clamp, and a second magnetic component is disposed at the lower end of the standard filter, and the first magnetic component is magnetically connected to the second magnetic component.

[0010] Furthermore, both front and rear end surfaces of the standard filter are provided with light-transmitting windows, and the shape of the light-transmitting windows is adapted to the shape of the light source emission port of the light source assembly.

[0011] Furthermore, at least one first transverse driving component is fixedly connected between the first travel guide rail and the filter support platform, and at least one second transverse driving component is fixedly connected between the second travel guide rail and the filter support platform. The first transverse driving component is used to drive the first travel guide rail and the filter support platform to move closer to or away from each other, and the second transverse driving component is used to drive the second travel guide rail and the filter support platform to move closer to or away from each other.

[0012] Furthermore, the first transverse driving component, the second transverse driving component, the first lifting driving assembly and the second lifting driving assembly are all automatic stepping push rods.

[0013] Furthermore, a plurality of positioning points are provided on the first travel guide rail and the second travel guide rail, and adjacent positioning points are evenly spaced and arranged, and the positioning points at the same position are on the same horizontal straight line as the T-shaped clamp.

[0014] Furthermore, it also includes a transparent dust cover, and the filter support platform, the first travel guide rail and the second travel guide rail are all located in the transparent dust cover.

[0015] Beneficial effects of the utility model:

[0016] The utility model can automatically adjust the driving output of the first lifting drive assembly and the second lifting drive assembly according to the size of the light receiving sensor and the light source assembly, so that the center positions of the light source assembly, the light receiving sensor and the standard filter are on the same horizontal line, thereby realizing automatic calibration and alignment of the light source assembly, the light receiving sensor and the standard filter, and simultaneously improving the calibration accuracy and calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a transmittance meter calibration device for motor vehicle inspection in the utility model;

[0018] Figure 2 It is an enlarged structural schematic diagram of the light source installation mechanism in the utility model;

[0019] Figure 3 It is an enlarged structural schematic diagram of the sensor installation mechanism in the utility model.

[0020] Figure numerals: 1. filter support platform; 2. first travel guide rail; 3. second travel guide rail; 4. T-type clamp; 5. standard filter; 6. light source mounting mechanism; 61. first lifting drive assembly; 62. first clamping assembly; 7. sensor mounting mechanism; 71. second lifting drive assembly; 72. second clamping assembly; 8. digital display window; 9. first lateral drive component; 10. second lateral drive component. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figure 1 As shown, a transmittance meter calibration device for motor vehicle inspection of this embodiment includes a filter support platform 1, a first travel guide rail 2 and a second travel guide rail 3. The filter support platform 1, the first travel guide rail 2 and the second travel guide rail 3 are parallel to each other. The first travel guide rail 2 and the second travel guide rail 3 are respectively located on both sides of the filter support platform 1. A plurality of T-shaped fixtures 4 are installed on the filter support platform 1. Adjacent T-shaped fixtures 4 are evenly spaced. Standard filters 5 are detachably installed on the T-shaped fixtures 4. The transmittance reference values ​​of the standard filters 5 are all different.

[0023] A light source installation mechanism 6 is installed on the moving end of the first travel guide rail 2. Figure 2As shown, the light source installation mechanism 6 includes a first lifting drive assembly 61 and a first clamping assembly 62. The first clamping assembly 62 is fixed to the upper end of the first lifting drive assembly 61. The first clamping assembly 62 is used to clamp the light source assembly. The moving end of the second travel guide rail 3 is equipped with a sensor installation mechanism 7. Figure 3 As shown, the sensor installation mechanism 7 includes a second lifting drive assembly 71 and a second clamping assembly 72. The second clamping assembly 72 is fixed to the upper end of the second lifting drive assembly 71. The second clamping assembly 72 is used to clamp the light receiving sensor.

[0024] When the light source mounting mechanism 6, the sensor mounting mechanism 7 and one of the T-shaped clamps 4 are in the same vertical plane, the first lifting drive assembly 61 and the second lifting drive assembly 71 respectively drive the light source assembly and the light receiving sensor to lift and lower until the center positions of the light source assembly, the light receiving sensor and one of the standard filters 5 are in the same horizontal line.

[0025] Specifically, in this embodiment, three T-shaped clamps 4 are provided, and the transmittance reference values ​​of the standard filters on each T-shaped clamp 4 are 0.50, 0.70, and 0.80 respectively. The distance between adjacent T-shaped clamps 4 is preferably 15 cm.

[0026] The present technical solution can automatically adjust the driving output of the first lifting drive assembly 61 and the second lifting drive assembly 71 according to the size of the light receiving sensor and the light source assembly, so that the center positions of the light source assembly, the light receiving sensor and the standard filter 5 are on the same horizontal line, thereby realizing automatic calibration and alignment of the light source assembly, the light receiving sensor and the standard filter 5, and simultaneously improving the calibration accuracy and calibration efficiency.

[0027] Preferably, a digital display window 8 for displaying a transmittance reference value of the standard filter 5 is provided on the T-shaped fixture 4 .

[0028] Specifically, in this embodiment, by providing a digital display window 8, the transmittance reference value of each standard filter 5 can be intuitively displayed for identification.

[0029] Preferably, a first magnetic member is disposed at the upper end of the T-shaped clamp 4, and a second magnetic member is disposed at the lower end of the standard filter 5, and the first magnetic member is magnetically connected to the second magnetic member.

[0030] Specifically, in this embodiment, the T-shaped clamp 4 and the standard filter 5 are arranged to be magnetically connected, so that the installation and removal between the T-shaped clamp 4 and the standard filter 5 are facilitated.

[0031] Preferably, both the front and rear end surfaces of the standard filter 5 are provided with light-transmitting windows, and the shape of the light-transmitting windows is adapted to the shape of the light source emission port of the light source assembly.

[0032] Specifically, in this embodiment, the light-transmitting window is preferably circular.

[0033] Preferably, at least one first transverse driving component 9 is fixedly connected between the first travel guide rail 2 and the filter support platform 1, and at least one second transverse driving component 10 is fixedly connected between the second travel guide rail 3 and the filter support platform 1. The first transverse driving component 9 is used to drive the first travel guide rail 2 and the filter support platform 1 to move closer to or away from each other, and the second transverse driving component 10 is used to drive the second travel guide rail 3 and the filter support platform 1 to move closer to or away from each other.

[0034] Specifically, in this embodiment, two first lateral drive components 9 and second lateral drive components 10 are provided to improve the stability of lateral drive. According to the thickness of the light source component and the light receiving sensor, and the lateral driving distance of the first lateral drive component 9 and the second lateral drive component 10, this technical solution can make the light source component and the light receiving sensor of the light transmittance meter of different models under test just close to the light transmission window of the standard filter 5 when they move toward the standard filter 5, ensuring that the standard filter 5 is not overly squeezed, and realizing the single-point measurement of each perspective ratio reference value.

[0035] Preferably, the first transverse driving component 9, the second transverse driving component 10, the first lifting driving assembly 61 and the second lifting driving assembly 71 are all automatic stepping push rods.

[0036] Preferably, a plurality of positioning points are provided on the first travel guide rail 2 and the second travel guide rail 3 , and adjacent positioning points are evenly spaced apart, and the positioning points at the same position are on the same horizontal straight line with the T-shaped clamp 4 .

[0037] Specifically, in this embodiment, positioning can be assisted by setting a positioning point. When the first travel guide rail 2 and the second travel guide rail 3 move to the positioning point, the light source installation mechanism 6, the sensor installation mechanism 7 and the T-shaped clamp 4 are in the same vertical plane.

[0038] Preferably, a transparent dust cover is further included, and the filter support platform 1, the first travel guide rail 2 and the second travel guide rail 3 are all located in the transparent dust cover.

[0039] Specifically, in this embodiment, by arranging the filter support platform 1, the first travel guide rail 2 and the second travel guide rail 3 in a transparent dust cover, all optical devices and precision mechanical structures in the calibration device can be protected from daily dust pollution, thereby improving overall durability.

[0040] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A transmittance meter calibration device for motor vehicle inspection, characterized in that: The optical filter support platform (1) comprises a first travel guide rail (2) and a second travel guide rail (3); the optical filter support platform (1), the first travel guide rail (2) and the second travel guide rail (3) are parallel to each other; the first travel guide rail (2) and the second travel guide rail (3) are respectively located on both sides of the optical filter support platform (1); a plurality of T-shaped clamps (4) are installed on the optical filter support platform (1); adjacent T-shaped clamps (4) are evenly spaced; standard optical filters (5) are detachably installed on the T-shaped clamps (4); and the transmittance reference values ​​of the standard optical filters (5) are all different; A light source installation mechanism (6) is installed on the movable end of the first travel guide rail (2), and the light source installation mechanism (6) includes a first lifting drive component (61) and a first clamping component (62), the first clamping component (62) is fixed to the upper end of the first lifting drive component (61), and the first clamping component (62) is used to clamp the light source component; a sensor installation mechanism (7) is installed on the movable end of the second travel guide rail (3), and the sensor installation mechanism (7) includes a second lifting drive component (71) and a second clamping component (72), the second clamping component (72) is fixed to the upper end of the second lifting drive component (71), and the second clamping component (72) is used to clamp the light receiving sensor; When the light source mounting mechanism (6), the sensor mounting mechanism (7) and one of the T-shaped clamps (4) are in the same vertical plane, the first lifting drive assembly (61) and the second lifting drive assembly (71) respectively drive the light source assembly and the light receiving sensor to lift and lower until the center positions of the light source assembly, the light receiving sensor and one of the standard filters (5) are in the same horizontal line.

2. The transmittance meter calibration device for motor vehicle inspection according to claim 1, characterized in that: The T-shaped fixture (4) is provided with a digital display window (8) for displaying a transmittance reference value of the standard optical filter (5).

3. The transmittance meter calibration device for motor vehicle inspection according to claim 1, characterized in that: The upper end of the T-shaped clamp (4) is provided with a first magnetic attraction component, and the lower end of the standard filter (5) is provided with a second magnetic attraction component, and the first magnetic attraction component is magnetically connected to the second magnetic attraction component.

4. The transmittance meter calibration device for motor vehicle inspection according to claim 1, characterized in that: Both front and rear end surfaces of the standard optical filter (5) are provided with light-transmitting windows, and the shape of the light-transmitting windows is compatible with the shape of the light source emission port of the light source assembly.

5. The transmittance meter calibration device for motor vehicle inspection according to claim 1, characterized in that: At least one first transverse driving component (9) is fixedly connected between the first travel guide rail (2) and the filter support platform (1), and at least one second transverse driving component (10) is fixedly connected between the second travel guide rail (3) and the filter support platform (1). The first transverse driving component (9) is used to drive the first travel guide rail (2) and the filter support platform (1) to move closer to or farther away from each other, and the second transverse driving component (10) is used to drive the second travel guide rail (3) and the filter support platform (1) to move closer to or farther away from each other.

6. The transmittance meter calibration device for motor vehicle inspection according to claim 5, characterized in that: The first transverse driving component (9), the second transverse driving component (10), the first lifting driving assembly (61) and the second lifting driving assembly (71) are all automatic stepping push rods.

7. The transmittance meter calibration device for motor vehicle inspection according to claim 1, characterized in that: A plurality of positioning points are provided on the first travel guide rail (2) and the second travel guide rail (3), and adjacent positioning points are evenly spaced and arranged, and the positioning points at the same position are on the same horizontal straight line as the T-shaped clamp (4).

8. The transmittance meter calibration device for motor vehicle inspection according to claim 1, characterized in that: It also comprises a transparent dust cover, wherein the filter support platform (1), the first travel guide rail (2) and the second travel guide rail (3) are all located inside the transparent dust cover.

Images