Parallelism testing device for bent vehicle-mounted central control display screen

Abstract

The utility model discloses a parallelism testing device for a bending vehicle-mounted central control display screen, which comprises a bracket, a positioning jig, a bending central control display screen, a first CCD (Charge Coupled Device) camera, a second CCD camera, a first light source, a second light source and an information processing computer, and is characterized in that the positioning jig is used for placing the bending central control display screen to be tested. According to the device for testing the parallelism of the bent vehicle-mounted central control display screen provided by the utility model, the first light source and the second light source irradiate the glass cover plates of the first display module and the second display module, and then enter the first CCD camera and the second CCD camera after being reflected; image morphological algorithm processing is carried out on the images through a computer of the information processing computer, finally, the difference value of the distances calculated in the two images is calculated, whether the difference value meets the process deviation standard or not is judged, and therefore parallelism testing is automatically completed, and the detection efficiency of the vehicle-mounted central control display screen is improved.

Description

Technical Field

[0001] This utility model relates to the field of parallelism testing technology for bent display screens, and in particular to a parallelism testing device for bent vehicle central control display screens. Background Technology

[0002] With the rapid development of the automotive industry, intelligence and humanization have become important trends in automotive design. As a key interface for human-machine interaction, the performance and quality of the in-vehicle central control display directly affect the user's driving experience and road safety. In the design of in-vehicle central control displays, bent displays, due to their unique design and improved human-machine interaction experience, are gradually becoming a new favorite in automotive interior design. They better conform to the driver's line of sight and operating habits, improving driving safety and comfort. These bent displays are typically designed with two screens, usually consisting of a molded base frame bonded to two screens or glass covers. To ensure that the bonding and assembly tolerances between the glass covers on the central control display module are within the standard range, testers need to measure the deviation distance between the two screens using a ruler to determine their parallelism, thus improving the production yield of the in-vehicle central control module. Since manual measurement is not only inaccurate but also inefficient, a parallelism testing device for bent in-vehicle central control displays is proposed. Utility Model Content

[0003] Based on this, it is necessary to provide a parallelism testing device for bending vehicle central control displays to address the aforementioned technical problems. This device illuminates a first and second strip-shaped light source, which then shines onto the glass covers of the first and second display modules. The light is reflected into the first and second CCD cameras. A computer processes the images using image morphology algorithms, and finally, the difference between the calculated distances in the two images is determined to see if it meets the process deviation standards. This automatically completes the parallelism test and improves the testing efficiency of vehicle central control displays.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A device for testing the parallelism of a bent in-vehicle central control display screen includes:

[0006] The system comprises a bracket, a positioning fixture, a bending central control display screen, a first CCD camera, a second CCD camera, a first light source, a second light source, and an information processing computer. The bending central control display screen includes a bending injection molded part and a first display module and a second display module mounted on the bending injection molded part. The first and second CCD cameras are used to photograph the corner edges of the glass cover plates of the first and second display modules. The first and second light sources are used to illuminate the glass cover plates of the first and second display modules to enhance the contrast between the glass cover plates and the bending injection molded part. The information processing computer is used to determine whether the parallelism of the glass cover plates of the first and second display modules meets the process deviation standards.

[0007] Furthermore, the positioning fixture is installed at the inner bottom of the bracket, and the positioning fixture is used to place the bent central control display screen to be tested. The first CCD camera and the second CCD camera are respectively installed on the left and right sides of the top of the bracket. The first light source and the second light source are respectively installed on the front and rear sides of the bracket. The first CCD camera, the second CCD camera, the first light source and the second light source are all electrically connected to the information processing computer. The first light source and the second light source are strip light sources.

[0008] Furthermore, the bracket includes a base plate, and a front side plate and a rear side plate are fixedly connected to the front and rear sides of the upper surface of the base plate, respectively. The height of the front side plate is less than the height of the rear side plate. The first light source and the second light source are respectively installed on the side of the front side plate and the rear side plate that are close to each other by a fixing bracket. Two fixing rods are fixedly connected to the left and right sides of the top of the rear side plate. The first CCD camera and the second CCD camera are respectively installed on the other end of the two fixing rods.

[0009] Furthermore, the lengths of both the first and second light sources are greater than the length of the bent central control display screen, and the height of the first light source is less than the height of the second light source.

[0010] Furthermore, the fixing frame includes a connecting rod and a mounting plate fixedly connected to the connecting rod. The connecting rod is inclined, and the mounting surface of the mounting plate faces the bending line of the bent central control display screen.

[0011] Furthermore, the positioning fixture includes a fixed base, the upper surface of which is provided with a V-shaped groove, and the bent central control display screen is located inside the V-shaped groove.

[0012] Furthermore, the center lines of the first CCD camera and the second CCD camera are set perpendicular to the bending line of the bent central control display screen.

[0013] Furthermore, the opening of the V-shaped groove faces upward, and the width of the front side of the V-shaped groove is smaller than the width of the rear side.

[0014] Furthermore, two V-shaped support rods are provided on the left and right sides of the inner wall of the V-shaped groove, and the two V-shaped support rods are fixedly connected to the inner wall of the V-shaped groove by screws.

[0015] Furthermore, an anti-slip pad is fixedly connected to the inner wall of the V-shaped support rod, and the anti-slip pad is made of rubber.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The parallelism testing device for bent in-vehicle central control displays provided by this utility model involves placing the bent central control display in the V-shaped groove of a positioning fixture, and then illuminating a first and a second strip light source. The first and second light sources illuminate the glass cover plates of the first and second display modules, and the light is then reflected into the first and second CCD cameras. In these cameras, the glass cover plates are highly bright, creating a high contrast with the black, non-reflective light source of the bent injection-molded part. The computer then processes the images using image morphology algorithms to fit the edges of the glass cover plates in the images captured by the first and second CCD cameras. The distance between the fitted glass edges is then calculated. Finally, the difference between the calculated distances in the two images is calculated to check if the difference meets the process deviation standard, thus automatically completing the parallelism test and improving the testing efficiency of in-vehicle central control displays. Attached Figure Description

[0018] Figure 1 A schematic diagram of the left-side structure of the parallelism testing device for the bent vehicle central control display screen provided by this utility model;

[0019] Figure 2 A top view of the parallelism testing device for the bent vehicle central control display screen provided by this utility model;

[0020] Figure 3 A schematic diagram of the illumination light structure of the parallelism testing device for the bent vehicle central control display screen provided by this utility model;

[0021] Figure 4 A circuit connection diagram of the parallelism testing device for the bent vehicle central control display screen provided by this utility model;

[0022] Figure 5 A schematic diagram of a bent vehicle center console display screen for the parallelism testing device of the bent vehicle center console display screen provided by this utility model;

[0023] Figure 6 A schematic diagram showing the installation of the light source for the parallelism testing device for the bent vehicle central control display screen provided by this utility model;

[0024] Figure 7 A schematic diagram of the U-shaped support rod of the parallelism testing device for the bent vehicle central control display screen provided by this utility model;

[0025] Figure 8 A cross-sectional schematic diagram of the U-shaped support rod of the parallelism testing device for the bent vehicle central control display screen provided by this utility model.

[0026] The markings in the diagram are explained as follows:

[0027] 1. Bracket; 2. Positioning fixture; 3. Bending central control display screen; 4. Bending injection molded part; 5. First display module; 6. Second display module; 7. First CCD camera; 8. Second CCD camera; 9. First light source; 10. Second light source; 11. Information processing computer; 101. Base plate; 102. Front side plate; 103. Rear side plate; 104. Fixing rod; 105. Connecting rod; 106. Mounting plate; 201. Fixing seat; 202. V-groove; 203. V-shaped support rod; 204. Screw; 205. Anti-slip pad. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] As described in the background section, existing in-vehicle central control displays are all bent and designed with two displays. Testers need to use a ruler to measure the deviation distance between the two displays in terms of their fit position. This manual measurement is not only inaccurate but also inefficient.

[0030] To solve this technical problem, this utility model provides a parallelism testing device for a bent vehicle central control display screen. The bent central control display screen 3 to be tested is placed in the V-shaped groove 202 of the positioning fixture 2. Then, the first light source 9 and the second light source 10 are lit. At this time, the first light source 9 and the second light source 10 illuminate the glass cover plates of the first display module 5 and the second display module 6. After reflection, the light enters the first CCD camera 7 and the second CCD camera 8. At this time, the brightness of the glass cover plate is high in the first CCD camera 7 and the second CCD camera 8, forming a high contrast with the black non-reflective light source bent injection molded part 4. Then, the computer of the information processing computer 11 performs image morphology algorithm processing on the image to fit the edge of the glass cover plate in the image captured by the first CCD camera 7 and the second CCD camera 8. Then, the distance between the fitted glass edges is calculated. Finally, the difference between the distances calculated in the two images is calculated to see if the difference meets the process deviation standard.

[0031] For details, please refer to Figure 1-8 The parallelism testing device for bending the vehicle's central control display screen specifically includes:

[0032] The bracket 1, the positioning fixture 2, and the bending central control display screen 3 are provided. The positioning fixture 2 is installed at the inner bottom of the bracket 1 and is used to place the bending central control display screen 3 to be tested. The bending central control display screen 3 includes a bending injection molded part 4 and a first display module 5 and a second display module 6 installed on the bending injection molded part 4.

[0033] The first CCD camera 7 and the second CCD camera 8 are respectively mounted on the left and right sides of the top of the bracket 1. The first CCD camera 7 and the second CCD camera 8 are used to photograph the corner edges of the glass cover plates of the first display module 5 and the second display module 6.

[0034] The first light source 9 and the second light source 10 are respectively installed on the front and rear sides of the bracket 1. The first light source 9 and the second light source 10 are used to illuminate the glass cover plates of the first display module 5 and the second display module 6 to enhance the contrast between the glass cover plates and the bent injection molded part 4.

[0035] The information processing computer 11, the first CCD camera 7, the second CCD camera 8, the first light source 9 and the second light source 10 are all electrically connected to the information processing computer 11. The information processing computer 11 is used to determine whether the parallelism of the glass cover plates of the first display module 5 and the second display module 6 meets the process deviation standard.

[0036] The parallelism testing device for a bent in-vehicle central control display screen provided by this utility model illuminates a strip-shaped first light source 9 and a second light source 10 during testing. At this time, the first light source 9 and the second light source 10 illuminate the glass cover plates of the first display module 5 and the second display module 6, and then the light is reflected into the first CCD camera 7 and the second CCD camera 8. At this time, the brightness of the glass cover plate is high in the first CCD camera 7 and the second CCD camera 8, forming a high contrast with the black non-reflective light source bent injection molded part 4. Then, the computer of the information processing computer 11 performs image morphology algorithm processing on the image to fit the edge of the glass cover plate in the image captured by the first CCD camera 7 and the second CCD camera 8, and then calculates the distance between the fitted glass edges. Finally, the difference between the distances calculated in the two images is calculated to see if the difference meets the process deviation standard, thereby automatically completing the parallelism test and improving the detection efficiency of the in-vehicle central control display screen.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] Example 1

[0041] Please refer to Figure 1-4 A parallelism testing device for a bent vehicle central control display screen includes a bracket 1, a positioning fixture 2, and a bent central control display screen 3. The bracket 1 supports the entire testing device structure. The positioning fixture 2 is installed at the inner bottom of the bracket 1 and is used to place the bent central control display screen 3 to be tested and to pre-position the bent central control display screen 3 during testing. The bent central control display screen 3 includes a bent injection molded part 4 and a first display module 5 and a second display module 6 installed on the bent injection molded part 4.

[0042] The first CCD camera 7 and the second CCD camera 8 are respectively installed on the left and right sides of the top of the bracket 1. The first CCD camera 7 and the second CCD camera 8 are used to capture images of the glass cover plates of the first display module 5 and the second display module 6, and to capture images of the two corner edges that are attached to the glass cover plates.

[0043] The first light source 9 and the second light source 10 are respectively installed on the front and rear sides of the bracket 1. The first light source 9 and the second light source 10 are used to illuminate the glass cover of the first display module 5 and the second display module 6, enhance the contrast between the glass cover and the bent injection molded part 4, and improve the accuracy and efficiency of the information processing computer 11 in processing the images captured by the CCD.

[0044] The information processing computer 11, the first CCD camera 7, the second CCD camera 8, the first light source 9 and the second light source 10 are all electrically connected to the information processing computer 11. The information processing computer 11 is used to determine whether the parallelism of the glass cover plates of the first display module 5 and the second display module 6 meets the process deviation standard.

[0045] The parallelism testing device for the bent vehicle central control display screen provided in this embodiment places the bent central control display screen 3 to be tested into the positioning fixture 2 during testing. Then, the first light source 9 and the second light source 10 are lit. At this time, the first light source 9 and the second light source 10 illuminate the glass cover of the first display module 5 and the second display module 6. After reflection, the light enters the first CCD camera 7 and the second CCD camera 8. At this time, the brightness of the glass cover is high in the first CCD camera 7 and the second CCD camera 8, forming a high contrast with the black non-reflective light source bent injection molded part 4. Then, the computer of the information processing computer 11 performs image morphology algorithm processing on the image to fit the edge of the glass cover in the image captured by the first CCD camera 7 and the second CCD camera 8. Then, the distance between the fitted glass edges is calculated. Finally, the difference between the distances calculated in the two images is calculated to see if the difference meets the process deviation standard, thereby automatically completing the parallelism test.

[0046] Example 2

[0047] The parallelism testing device for the bent vehicle central control display screen provided in Embodiment 1 has been further optimized, specifically, as follows: Figure 1-6 As shown, the first light source 9 and the second light source 10 are strip light sources. Strip light sources have better consistency in light intensity and can better illuminate the glass covers of the first display module 5 and the second display module 6.

[0048] The bracket 1 includes a base plate 101. A front side plate 102 and a rear side plate 103 are fixedly connected to the front and rear sides of the upper surface of the base plate 101, respectively. The height of the front side plate 102 is less than the height of the rear side plate 103. The first light source 9 and the second light source 10 are respectively installed on the side of the front side plate 102 and the rear side plate 103 that are close to each other by fixing brackets. Two fixing rods 104 are fixedly connected to the left and right sides of the top of the rear side plate 103. The first CCD camera 7 and the second CCD camera 8 are respectively installed on the other end of the two fixing rods 104. The length of the first light source 9 and the second light source 10 is greater than the length of the bent central control display screen 3, and the height of the first light source 9 is less than the height of the second light source 10.

[0049] The mounting bracket includes a connecting rod 105 and a mounting plate 106 fixedly connected to the connecting rod 105. The connecting rod 105 is inclined, and the mounting surface of the mounting plate 106 faces the bending line of the bent central control display screen 3. Through the above structural design, the bent central control display screen 3 is placed into the positioning fixture 2 from above the front side plate 102 on the front side, and the first CCD camera 7 and the second CCD camera 8 are positioned above the bent central control display screen 3 to take pictures.

[0050] Example 3

[0051] The parallelism testing device for the bent vehicle central control display screen provided in Embodiment 1 or 2 is further optimized, such as... Figure 1 and Figure 2 As shown, the positioning fixture 2 includes a fixed base 201, and a V-shaped groove 202 is formed on the upper surface of the fixed base 201. The bent central control display screen 3 is located inside the V-shaped groove 202. The center lines of the first CCD camera 7 and the second CCD camera 8 are set perpendicular to the bending line of the bent central control display screen 3. The opening of the V-shaped groove 202 faces upward, and the front width of the V-shaped groove 202 is smaller than the rear width.

[0052] In this way, the bent central control display screen 3 is placed in the V-shaped groove 202 of the positioning fixture 2. The V-shaped groove 202 can automatically position and limit the bending of the central control display screen 3. At this time, the center lines of the first CCD camera 7 and the second CCD camera 8 are set perpendicular to the bending line of the bent central control display screen 3, ensuring that the first CCD camera 7 and the second CCD camera 8 can better capture images of the glass cover.

[0053] Example 4

[0054] The parallelism testing device for bending vehicle central control displays provided in the above embodiments has been further optimized, such as... Figure 7 and Figure 8As shown, two V-shaped support rods 203 are provided on the left and right sides of the inner wall of the V-shaped groove 202. The two V-shaped support rods 203 are fixedly connected to the inner wall of the V-shaped groove 202 by screws 204. Anti-slip pads 205 are fixedly connected to the inner wall of the V-shaped support rods 203. The anti-slip pads 205 are made of rubber. With this structural design, after the bent central control display screen 3 to be tested is placed in the V-shaped groove 202 of the positioning fixture 2, the bent injection molded part 4 of the bent central control display screen 3 contacts the anti-slip pads 205 on the V-shaped support rods 203. The anti-slip pads 205 increase the friction and prevent the bent central control display screen 3 from moving during the test.

[0055] The parallelism testing device for bending vehicle central control displays provided by this utility model is used as follows:

[0056] During testing, the bent central control display screen 3 to be tested is placed in the V-groove 202 of the positioning fixture 2. Then, the first light source 9 and the second light source 10 are lit. At this time, the first light source 9 and the second light source 10 illuminate the glass cover of the first display module 5 and the second display module 6. After reflection, the light enters the first CCD camera 7 and the second CCD camera 8. At this time, the brightness of the glass cover is high in the first CCD camera 7 and the second CCD camera 8, forming a high contrast with the black non-reflective light source bent injection molded part 4. Then, the computer of the information processing computer 11 performs image morphology algorithm processing on the image to fit the edge of the glass cover in the image captured by the first CCD camera 7 and the second CCD camera 8. Then, the distance between the fitted glass edges is calculated. Finally, the difference between the distances calculated in the two images is calculated to see if the difference meets the process deviation standard, thereby automatically completing the parallelism test and improving the detection efficiency of the vehicle central control display screen.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A parallelism testing device for bending a center control display screen of a vehicle, characterized in that, It includes: The bracket (1), positioning fixture (2) and bending central control display screen (3) are provided. The bending central control display screen (3) includes a bending injection molded part (4) and a first display module (5) and a second display module (6) installed on the bending injection molded part (4). A first CCD camera (7) and a second CCD camera (8) are used to capture the corner edges of the glass cover plates of the first display module (5) and the second display module (6). The first light source (9) and the second light source (10) are used to illuminate the glass cover of the first display module (5) and the second display module (6) to enhance the contrast between the glass cover and the bent injection molded part (4). Information processing computer (11) is used to determine whether the parallelism of the glass cover plates of the first display module (5) and the second display module (6) meets the process deviation standard.

2. The parallelism testing device for the folding in-vehicle central control display screen according to claim 1, wherein, The positioning fixture (2) is installed at the bottom of the bracket (1). The positioning fixture (2) is used to place the bent central control display screen (3) to be tested. The first CCD camera (7) and the second CCD camera (8) are respectively installed on the left and right sides of the top of the bracket (1). The first light source (9) and the second light source (10) are respectively installed on the front and rear sides of the bracket (1). The first CCD camera (7), the second CCD camera (8), the first light source (9) and the second light source (10) are all electrically connected to the information processing computer (11). The first light source (9) and the second light source (10) are strip light sources.

3. The parallelism testing device for the folding in-vehicle central control display screen according to claim 2, wherein, The bracket (1) includes a base plate (101). A front side plate (102) and a rear side plate (103) are fixedly connected to the front and rear sides of the upper surface of the base plate (101), respectively. The height of the front side plate (102) is less than the height of the rear side plate (103). The first light source (9) and the second light source (10) are respectively installed on the side of the front side plate (102) and the rear side plate (103) that are close to each other by a fixing bracket. Two fixing rods (104) are fixedly connected to the left and right sides of the top of the rear side plate (103). The first CCD camera (7) and the second CCD camera (8) are respectively installed on the other end of the two fixing rods (104).

4. The parallelism testing device for the folding in-vehicle central control display screen according to claim 3, characterized in that, The lengths of the first light source (9) and the second light source (10) are both greater than the length of the bent central control display screen (3), and the height of the first light source (9) is less than the height of the second light source (10).

5. The parallelism testing device for the folding in-vehicle central control display screen according to claim 4, wherein, The fixing frame includes a connecting rod (105) and a mounting plate (106) fixedly connected to the connecting rod (105). The connecting rod (105) is inclined, and the mounting surface of the mounting plate (106) faces the bending line of the bent central control display screen (3).

6. The parallelism testing device for the folding in-vehicle central control display screen according to claim 3, wherein, The positioning fixture (2) includes a fixed base (201), and a V-shaped groove (202) is provided on the upper surface of the fixed base (201). The bent central control display screen (3) is located inside the V-shaped groove (202).

7. The parallelism testing device for the folding in-vehicle central control display screen according to claim 6, wherein, The center lines of the first CCD camera (7) and the second CCD camera (8) are set perpendicular to the bending line of the bent central control display screen (3).

8. The parallelism testing device for the folding in-vehicle central control display screen according to claim 7, wherein, The opening of the V-groove (202) faces upward, and the width of the front side of the V-groove (202) is smaller than the width of the rear side.

9. The parallelism testing device for the folding in-vehicle central control display screen according to claim 8, wherein, Two V-shaped support rods (203) are provided on the left and right sides of the inner wall of the V-shaped groove (202), and the two V-shaped support rods (203) are fixedly connected to the inner wall of the V-shaped groove (202) by screws (204).

10. The parallelism testing device for the folding in-vehicle central control display screen according to claim 9, wherein, The inner wall of the V-shaped support rod (203) is fixedly connected with an anti-slip pad (205), which is made of rubber.

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