Automobile interior adhesive spraying inspection device

Abstract

The utility model discloses a device for inspecting the spraying of adhesive for automobile interior decoration, comprising: a light shielding box, a visual inspection camera, an auxiliary light source and a glue spraying tool; the visual inspection camera is arranged at the top of the light shielding box, and the visual inspection target area corresponds to the glue spraying product area arranged at the bottom of the light shielding box; the auxiliary light source is arranged at the top of the light shielding box, and the illumination target area corresponds to the area of ​​the glue spraying product; the glue spraying tool is arranged at the bottom of the light shielding box, and can transfer the glue spraying product to the light shielding box after the adhesive is sprayed. Through the technical solution of the utility model, the differences affected by human factors are avoided, the reliability of the inspection method after the interior decoration adhesive is sprayed is improved, and the consistency and stability of product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of visual recognition, in particular to a device for inspecting the spraying of adhesive for automobile interior decoration. Background Art

[0002] In the manufacturing process of automobile interiors such as automobile door panels and dashboards, hot melt adhesives, water-based adhesives and other adhesives play a decisive role in the process of automobile interior covering. With the help of adhesives, PVC skins, genuine leather, TPO skins and other interior product skeletons can be bonded together, providing more automobile interior products that are superior to ordinary injection molded parts.

[0003] There are many production processes for adhesives in the production of automotive interiors, one of which is the spraying process. During the adhesive spraying process, the spraying state of the adhesive will vary due to differences in equipment maintenance status, environmental fluctuations, raw material incoming fluctuations, etc. These process fluctuations and differences will lead to differences in the quality status of automotive interior products. The automotive interior is the part that comes into direct contact with the driver and passengers during the use of the vehicle, so the quality of the automotive interior is particularly important during the use of the vehicle.

[0004] There are many states in the process of spraying and using adhesives. Differences in the spraying state of adhesives will lead to uncontrollable quality status of the coated parts and large differences in the consistency of the coated parts. Under the current technical state, production line operators perform manual inspections or skip the inspection steps to directly carry out the coating operation. For the production process of some products, the adhesive is sprayed on the frame, and the production line operators can directly contact the product. The workers' vision, touch and other sensory methods can be used to detect the spraying quality status of the product; for other products, the spraying of adhesives is only a closed step in the product production process. The products produced after multiple steps have completed the coating process. The operators cannot directly contact the sprayed products and cannot effectively complete the inspection of the spraying status.

[0005] Regarding the above adhesive spraying status inspection process, whether it is manually inspectable or not, the adhesive spraying status in the existing production process cannot be effectively inspected and judged, resulting in differences in product status. Moreover, the differences in manual inspection and judgment lead to inconsistent inspection standards. The human factor causes differences in inspection standards, which leads to differences in the quality of automotive interior products. Utility Model Content

[0006] In view of the above problems, the utility model provides a vehicle interior adhesive spraying inspection device. Through the auxiliary lighting of the auxiliary light source in the shading box, the visual inspection camera can perform standardized visual inspection on the spraying status of the spraying tooling in the shading box, thereby avoiding differences caused by human factors, improving the reliability of the interior adhesive post-spraying inspection method, and improving the consistency and stability of product quality.

[0007] To achieve the above-mentioned purpose, the utility model provides an automobile interior adhesive spraying inspection device, comprising: a light shielding box, a visual inspection camera, an auxiliary light source and a glue spraying tool;

[0008] The visual inspection camera is arranged at the top of the light shielding box, and the visual inspection target area corresponds to the glue spraying product area arranged at the bottom of the light shielding box;

[0009] The auxiliary light source is arranged at the top of the light shielding box and the target area of ​​illumination corresponds to the area of ​​the glue spraying product;

[0010] The glue spraying tool is arranged at the bottom of the light shielding box, and can transfer the glue spraying product into the light shielding box after the adhesive is sprayed on it.

[0011] In the above technical solution, preferably, the automobile interior adhesive spraying inspection device also includes an operation screen, which is arranged on the outer side of the light shielding box, and the operation screen is connected to the visual inspection camera.

[0012] In the above technical solution, preferably, the operation screen is also connected to the auxiliary light source.

[0013] In the above technical solution, preferably, the auxiliary light source is a common lighting light source or a UV lamp.

[0014] In the above technical solution, preferably, the auxiliary light source adopts a dual light source position, and two groups of the auxiliary light sources are respectively arranged on both sides of the visual inspection camera, and the two groups of the auxiliary light sources jointly illuminate the area of ​​the spray-glued product.

[0015] In the above technical solution, preferably, the two groups of auxiliary light sources respectively use ordinary lighting light sources and UV lamps.

[0016] In the above technical solution, preferably, the automobile interior adhesive spraying inspection device also includes an alarm device, which is arranged on the inside or outside of the light shielding box, and the alarm device is connected to the operation screen.

[0017] In the above technical solution, preferably, the alarm devices are respectively distributed in different preset positions relative to the spray-adhesive product in the light-shielding box.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: through the auxiliary lighting of the auxiliary light source in the shading box, the visual inspection camera can perform standardized visual inspection of the spraying status of the spraying tooling in the shading box, avoiding differences caused by human factors, improving the reliability of the inspection method after interior adhesive spraying, and improving the consistency and stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a perspective structural diagram of an automobile interior adhesive spraying inspection device disclosed in one embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of an automobile interior adhesive spraying inspection device disclosed in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the selection of the detection range of the spraying surface of the glue spraying product disclosed in one embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of searching within the range of abnormal glue spraying points on the spraying surface of a glue spraying product disclosed in one embodiment of the utility model.

[0023] In the figure, the corresponding relationship between each component and the reference numeral is as follows:

[0024] 1. Light shielding box, 2. Visual inspection camera, 3. Auxiliary light source, 4. Glue spraying tooling, 5. Operation screen, 6. Glue spraying product. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0027] like Figure 1 and Figure 2 As shown, a vehicle interior adhesive spraying inspection device provided by the utility model includes: a light shielding box 1, a visual inspection camera 2, an auxiliary light source 3 and a glue spraying tool 4;

[0028] The visual inspection camera 2 is arranged at the top of the light shielding box 1, and the visual inspection target area corresponds to the spray glue product 6 area arranged at the bottom of the light shielding box 1;

[0029] The auxiliary light source 3 is arranged at the top of the light shielding box 1 and the target area of ​​illumination corresponds to the area of ​​the glue spraying product 6;

[0030] The glue spraying tool 4 is arranged at the bottom of the light shielding box 1 and can transfer the glue spraying product 6 into the light shielding box 1 after spraying the adhesive.

[0031] In this embodiment, through the auxiliary lighting of the auxiliary light source 3 in the light shielding box 1, the visual inspection camera 2 can perform standardized visual inspection on the spraying status of the glue spraying tool 4 in the light shielding box 1, thereby avoiding differences caused by human factors, improving the reliability of the inspection method after interior adhesive spraying, and improving the consistency and stability of product quality.

[0032] Specifically, the visual inspection camera 2 is used to photograph the glue spraying state of the surface of the glue spraying product 6 frame, and the inspection range can cover the adhesive spraying surface of the glue spraying product 6 frame. In addition, the visual inspection camera 2 needs to be connected to an external power supply and network, etc. The visual inspection camera 2 can be driven by the adhesive spraying equipment, the coating equipment, etc. to perform the visual photography judgment process.

[0033] The auxiliary light source 3 can fully and effectively illuminate the skeleton surface of the glue-spraying product 6 when the light-shielding box 1 is in the light-shielding state, so that the visual inspection camera 2 can clearly detect the glue-spraying state of the surface of the glue-spraying product 6 .

[0034] The light shielding box 1 is the main frame structure of the entire device, and it is installed at specific positions of related equipment such as the glue spraying tooling 4 and the coating equipment by means of external hanging points. The light shielding box 1 is made of opaque material and is used to block external natural light sources to ensure that the glue spraying product 6 will not be affected by natural light sources during visual inspection, avoid detection errors caused by changes in external light sources and lighting, and improve the stability of the device in taking pictures and detecting. The outer dimensions of the light shielding box 1 are related to the size of the glue spraying product 6 to be inspected, the size of the installation position, the detection range of the visual inspection camera 2, etc.; in special cases, the light shielding box 1 can also exist in the form of an outer frame of the spraying equipment and the coating equipment. In addition to being installed vertically, the light shielding box 1 can also be installed at an angle, which is determined by the equipment size, the position of the robot, and the internal space relationship of the equipment.

[0035] In view of the different length, width and height size differences of different glue spraying products 6 , it is necessary to set a corresponding light shielding box 1 so that the glue spraying product 6 is within the coverage of the light shielding box 1 .

[0036] The glue spraying tool 4 has different structural forms due to its adaptation to different products. The other end of the glue spraying tool 4 can be connected to the end joint of the spraying robot. The spraying robot and the glue spraying tool 4 form an integral structure. The skeleton workpiece of the glue spraying product 6 is fixed by vacuum suction cups, clamps, etc., and sensors are equipped to detect the clamping and fixing state of the glue spraying product 6. After the glue spraying tool 4 clamps the glue spraying product 6, the visual inspection camera 2 can be triggered according to the program control logic to check and judge the glue spraying state.

[0037] In the above embodiment, preferably, the automobile interior adhesive spraying inspection device also includes an operation screen 5, which is arranged on the outer side of the light shielding box 1, and the operation screen 5 is connected to the visual inspection camera 2. Specifically, through the operation screen 5, the inspection program of the visual inspection camera 2 can be set, and the real-time inspection and judgment results of the visual inspection camera 2 can also be displayed. The operation screen 5 can be installed on the side of the light shielding box 1 that is convenient for viewing, and can also be installed at a position away from the light shielding box 1, and can be connected through a power cable and a signal cable for remote viewing, debugging and operation status monitoring.

[0038] In the above embodiment, preferably, the operation screen 5 is also connected to the auxiliary light source 3 , and the operation screen 5 can be used to control the execution of actions such as switching and adjusting the auxiliary light source 3 .

[0039] In the above embodiment, preferably, the auxiliary light source 3 adopts an ordinary lighting light source or a UV lamp. When using an ordinary lighting light source, it is used to detect adhesives without fluorescent agents and adhesives with fluorescent agents. At this time, the color of the adhesive should be different from the color of the skeleton to perform visual photographic comparison detection; when using a UV lamp light source, the adhesive with fluorescent agents can be detected.

[0040] When the adhesive does not contain a fluorescent agent and has a color different from that of the product frame body, the detection device detects the distribution state of the adhesive after taking a photo with the aid of an auxiliary lighting source;

[0041] When the adhesive contains a fluorescent agent, the detection device uses a UV light source to activate the fluorescent properties of the adhesive and takes an overall photo to detect the distribution status of the adhesive.

[0042] In the above embodiment, preferably, the auxiliary light source 3 adopts a dual light source position, and the two groups of auxiliary light sources 3 are respectively arranged on both sides of the visual inspection camera 2, and the two groups of auxiliary light sources 3 jointly illuminate the area of ​​the spray-on product 6. The dual light source can provide a stable lighting / auxiliary lighting environment, which can improve the detection stability.

[0043] In the above embodiment, preferably, the two groups of auxiliary light sources 3 respectively use ordinary lighting light sources and UV lamps to provide different lighting modes for the glue spraying tooling 4, thereby improving the flexibility of detection.

[0044] During the implementation process, two methods can be used to detect the glue spraying status: frame selection detection range and search for abnormal points in the overall range.

[0045] like Figure 3 As shown in the figure, the frame selection detection range detection process includes:

[0046] By using the inspection video stream of the visual inspection camera 2, a rectangle of a certain size is set and demarcated on the control screen, and an inspection program is set within the rectangle, so as to inspect whether the spraying state of the adhesive within the rectangular frame selection range is qualified.

[0047] The shape of the selection box can be a rectangle, a square, a prototype, an ellipse, etc.

[0048] The delineated inspection frame can be set with multiple inspection shapes, and can perform multi-point inspections at multiple locations. The inspection order can be adjusted within the program to meet inspection requirements.

[0049] like Figure 4 As shown in the figure, the detection process of finding outliers within the overall range includes:

[0050] After the visual inspection camera 2 is initially set and the initial recording of the spraying status is completed, the visual inspection camera 2 can detect abnormal points within the overall shooting range and find points where the spraying status is different from the initial spraying status. When the area of ​​the point is larger than the set value, it will be fed back to the equipment body for alarm, shutdown, etc.

[0051] In the above embodiment, preferably, the automobile interior adhesive spraying inspection device also includes an alarm device (not shown in the figure), which is arranged on the inside or outside of the light shielding box 1, and the alarm device is connected to the operation screen 5. When an abnormal situation occurs within the detection frame, the visual inspection camera 2 will detect the abnormal situation and feedback it to the equipment body to perform alarm, shutdown and other operations.

[0052] In the above embodiment, preferably, the alarm devices are respectively distributed in different preset positions relative to the glue-spraying product 6 in the light-shielding box 1, and when an abnormality is detected in different areas or positions corresponding to the glue-spraying product 6, the alarm device at the corresponding position will sound an alarm, so that the subsequent manual screening process can quickly determine the abnormal position and improve the inspection efficiency.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automobile interior adhesive spraying inspection device, characterized in that: include: Light shielding boxes, visual inspection cameras, auxiliary light sources and glue spraying tools; The visual inspection camera is arranged at the top of the light shielding box, and the visual inspection target area corresponds to the glue spraying product area arranged at the bottom of the light shielding box; The auxiliary light source is arranged at the top of the light shielding box and the target area of ​​illumination corresponds to the area of ​​the glue spraying product; The glue spraying tool is arranged at the bottom of the light shielding box, and can transfer the glue spraying product into the light shielding box after the adhesive is sprayed on it.

2. The automotive interior adhesive spraying inspection device according to claim 1, characterized in that: It also includes an operation screen, which is arranged on the outer side of the light shielding box and is connected to the visual inspection camera.

3. The automotive interior adhesive spraying inspection device according to claim 2, characterized in that: The operation screen is also connected to the auxiliary light source.

4. The automobile interior adhesive spraying inspection device according to claim 3, characterized in that: The auxiliary light source is a common lighting source or a UV lamp.

5. The automobile interior adhesive spraying inspection device according to claim 3, characterized in that: The auxiliary light source adopts a dual light source position, and the two groups of the auxiliary light sources are respectively arranged on both sides of the visual inspection camera, and the two groups of the auxiliary light sources jointly illuminate the area of ​​the spray-glued product.

6. The automobile interior adhesive spraying inspection device according to claim 5, characterized in that: The two groups of auxiliary light sources respectively use ordinary lighting light sources and UV lamps.

7. The automobile interior adhesive spraying inspection device according to claim 5, characterized in that: It also includes an alarm device, which is arranged on the inside or outside of the light-shielding box and is connected to the operation screen.

8. The automobile interior adhesive spraying inspection device according to claim 7, characterized in that: The alarm devices are respectively distributed in the light shielding box at different preset positions relative to the glue spraying product.

Images