Hub bolt hole protection leaking stoppage installation detection device and hub spraying line

Abstract

The utility model discloses a hub bolt hole protection leakage stoppage installation detection device and a hub spraying line. The detection device comprises a camera obscura allowing a conveying device to convey the hub to pass through the interior, a camera installed in the camera obscura and used for shooting the hub, and a trigger module used for providing a timing signal for shooting and capturing of the camera. The camera is used for capturing a bolt hole of a hub, the central control machine is used for identifying and processing a picture captured by the camera to judge whether the bolt hole of the hub is internally provided with a protective plug, the light source is used for supplementing light for shooting of the camera, and the trigger module is installed at the position, corresponding to the lower portion of the hub, in the camera obscura and used for detecting the hub passing through the camera obscura. The camera obscura comprises a profile frame and a panel used for isolating interference of external light to images shot and captured by the camera. And the trigger module detects the passing conveying chain jig and the wheel hub by using the two pairs of correlation light. Therefore, the hub which is not provided with the protective plug can be found in time, and the bolt hole is effectively prevented from being sprayed with paint.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wheel hub manufacturing, in particular to a wheel hub bolt hole protective plugging leak installation detection device for checking whether there is any missing installation after the protective plug is installed on the wheel hub, and a wheel hub spraying line provided with the device. Background Art

[0002] The wheel hub is an important load-bearing and appearance component of the car. The wheel hub surface needs to be painted to ensure the beauty and corrosion resistance of the wheel hub. In the process of assembling the wheel hub, the wheel hub is fixed to the car body by high-strength bolts; high-strength bolts rely on the friction of the friction surface, and the friction relies on pressure and friction coefficient. Under the same pressure, the friction coefficient between the bolt and the aluminum alloy is much greater than the friction coefficient between the bolt and the paint coating. In order to ensure that the wheel hub is firmly fixed to the car body during long-term high-speed operation, there must be no coating on the mounting surface of the wheel hub bolt hole.

[0003] Therefore, during the production process of wheel hub spraying, protective plugs are mainly installed in the bolt holes before spraying to block the paint powder coating sprayed on the bolt holes, so as to achieve the purpose of no coating on the bolt holes. At present, the wheel hub spraying industry mainly relies on manual installation of protective plugs. Each wheel hub needs to install 4-8 protective plugs. If people repeat a single action for a long time, they are very likely to get tired and miss the plugs. If the protective plugs are not installed, the bolt holes will be coated with spray paint, which is extremely difficult to find in the subsequent manual inspection process, resulting in the outflow of unqualified products to customers and complaints. Even if the bolt holes are found to have coatings in the subsequent manual inspection, it is very cumbersome to handle. Special chemicals need to be used to wipe them little by little. During the operation, it is very easy to touch the coating near the bolt holes, causing the wheel hub to be reworked or scrapped. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a wheel hub bolt hole protection leakage plugging installation detection device.

[0005] According to one aspect of the utility model, a wheel hub bolt hole protective plugging installation detection device is provided, comprising: a dark box allowing a conveying device to transport the wheel hub to pass through the inside, a camera installed inside the dark box for photographing the wheel hub, a trigger module for providing a timing signal for the camera to shoot and capture, and a central control machine for identifying and processing the image captured by the camera to determine whether a protective plug is installed in the bolt hole of the wheel hub, wherein the trigger module is installed in the dark box at a position corresponding to the bottom of the wheel hub for detecting the wheel hub passing through, and the dark box includes a profile frame and a panel for isolating external light from interfering with the camera shooting and capturing images.

[0006] Preferably, the camera is mounted on the top of the dark box via an aluminum alloy link plate.

[0007] Preferably, the wheel hub bolt hole protection and leak-proofing installation detection device also includes a light source for filling in light for camera shooting.

[0008] Preferably, the light source is fixed to the top side of the dark box through an aluminum profile angle fixing piece.

[0009] Preferably, the dark box is assembled by an aluminum profile frame and a panel of an aluminum-plastic plate or a non-transparent acrylic plate material.

[0010] Preferably, the trigger module includes two pairs of opposing photoelectric devices, which are fixed on the profile frame of the dark box corresponding to the positions above the central control machine and below the wheel hub.

[0011] Preferably, the conveying device includes a conveying chain for transporting the wheel hub, and the trigger module uses two pairs of incident light to detect the conveying chain fixture and the wheel hub passing through.

[0012] Preferably, the central control machine locates the bolt holes in the images captured by the camera, analyzes and determines whether there are protective plugs, and outputs the detection results.

[0013] Preferably, the wheel hub bolt hole protection plugging installation detection device also includes an alarm device that issues an alarm prompt according to the detection result; and / or, also includes a distribution box placed at the bottom of the dark box.

[0014] According to another aspect of the utility model, a wheel hub spraying line is provided, which includes the above-mentioned wheel hub bolt hole protection leakage plugging installation detection device.

[0015] The beneficial effects of the utility model are:

[0016] 1. The wheel hub spraying line of the utility model can timely discover the wheel hub with missing protective plugs, effectively prevent the bolt holes from being sprayed with paint, and eliminate the generation and outflow of missing protective plugs from the source, thus solving the hidden dangers of customer complaints and subsequent treatment of the coating causing the wheel hub to be reworked and scrapped.

[0017] 2. The wheel hub bolt hole protective plugging installation detection device of the present invention can also be applied to the inspection station after spraying to avoid customer complaints due to forgetting to remove the protective plugging wheel hub.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the working principle of the wheel hub bolt hole protection leakage plugging installation detection device.

[0020] Figure 2 Shows the installation position of the protective plug.

[0021] Figure 3 A schematic diagram showing an example structure of a protective plug. DETAILED DESCRIPTION

[0022] The exemplary embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. The exemplary embodiments described below and shown in the accompanying drawings are intended to teach the principles of the present utility model, so that those skilled in the art can implement and use the present utility model in several different environments and for several different applications. Therefore, the scope of protection of the present utility model is defined by the attached claims, and the exemplary embodiments are not intended to be, and should not be considered as, a restrictive description of the scope of protection of the present utility model. Moreover, for the convenience of description, the same elements in the accompanying drawings are represented by the same or similar reference numerals, and the sizes of the various parts shown are not necessarily drawn according to the actual proportional relationship. The description of the orientation, such as the upstream and downstream of the corresponding feed direction, and the orientation or position relationship indicated by the upper, lower, left, right, top, bottom, etc., are all based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The following description of each embodiment emphasizes the differences between the embodiments. The same or similar aspects can be referenced to each other. For the sake of brevity, they will not be described one by one. The technical features in different embodiments can be freely combined according to design requirements to form more embodiments.

[0023] Figure 1 The utility model is illustrated as a wheel hub bolt hole protection plugging installation detection device (hereinafter also referred to as the detection device), comprising: a camera 1, a light source 2, a dark box 3, a trigger module 4, a central control machine 5, and a distribution box 6.

[0024] The camera 1 is installed on the top of the dark box 3 through an aluminum alloy link plate, and can receive a signal from the trigger module 4 to capture the wheel hub image.

[0025] The light source 2 is fixed to the top side of the dark box 3 through the aluminum profile angle fixing piece, and is used to illuminate the surface of the wheel hub and provide fill light for the camera 1 to shoot.

[0026] The dark box 3 is composed of an aluminum profile frame and a panel made of aluminum-plastic plate or non-transparent acrylic plate, etc., which are assembled together with screws to isolate the interference of external sunlight or other light sources on the camera 1 in capturing images. The dark box is provided with an inlet and an outlet to allow the conveyor chain transport hub to pass through the inside.

[0027] The trigger module 4 is mainly composed of at least two pairs of opposing photoelectric devices, which are fixed on the aluminum profile frame of the darkroom 3 with bolts corresponding to the position above the central control machine 5 and below the wheel hub. When the wheel hub is transported by a conveying device such as a conveyor chain, it is used to provide a timing signal for the camera 1 to shoot and capture.

[0028] The central control machine 5 is installed on the lower aluminum profile frame of the dark box 3 with bolts, and is used to perform recognition processing such as feature comparison and coordinate analysis calculation on the picture captured by the camera 1, so as to identify the position of the locking bolt hole, and analyze and determine whether there is a protective plug 7 in the bolt hole, and then output and store the detection results.

[0029] The distribution box 6 is placed at the bottom of the dark box 3 and fixed to the aluminum profile frame of the dark box 3 by screws, and is used to assemble various supporting electrical components of the device.

[0030] Since there may be omissions after installing the protective plug, it is necessary to check whether there are omissions. As an example, the operation process of the detection device includes the following steps:

[0031] S1. After the worker installs the protective plug 7 on the wheel hub, the wheel hub is transported into the detection device via the conveyor chain.

[0032] S2. When the wheel hub passes through the detection device via the conveyor chain, when the trigger module 4 detects the conveyor chain fixture and the wheel hub passing through, the trigger module 4 sends a signal to the camera 1, and the camera 1 takes a picture of the wheel hub.

[0033] 3. The central control machine 5 locates the bolt holes in the image captured by the camera 1, analyzes and determines whether there is a protective blockage, and then outputs the detection result.

[0034] 4. If the detection device finds that the bolt hole of the protective plug 7 is not installed, it will send out an audible and visual alarm through the alarm device; if no one handles it within the specified alarm time, the detection device can output a stop signal to the production line to force manual processing to avoid the wheel hub being sprayed without the protective plug 7 installed.

[0035] In the description of the present application, "multiple" means two or more than two, unless otherwise clearly and specifically defined. Unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Although the present invention has been described with reference to various specific embodiments, it should be understood that variations can be made within the spirit and scope of the concept of the described utility model. Therefore, it is intended that the present invention is not limited to the described embodiments, but will have the full scope defined by the language of the appended claims.

Claims

1. A wheel hub bolt hole protection plugging installation detection device, characterized in that: include: A dark box (3) allowing a conveying device to transport a wheel hub passing through the inside, a camera (1) installed inside the dark box (3) for photographing the wheel hub, a trigger module (4) for providing a timing signal for the camera (1) to photograph and capture, and a central control machine (5) for identifying and processing the image captured by the camera (1) to determine whether a protective plug (7) is installed in the bolt hole of the wheel hub, wherein the trigger module (4) is installed in the dark box (3) at a position corresponding to the bottom of the wheel hub for detecting the wheel hub passing through, and the dark box (3) comprises a profile frame and a panel for isolating interference of external light on the camera (1) photographing and capturing images.

2. The wheel hub bolt hole protection and plugging installation detection device according to claim 1 is characterized in that: The camera (1) is mounted on the top of the dark box (3) via an aluminum alloy link plate.

3. The wheel hub bolt hole protection and leak-proofing installation and detection device according to claim 1, characterized in that: It also includes a light source (2) for supplementing light for the camera (1).

4. The wheel hub bolt hole protection and leak-proofing installation and detection device according to claim 3, characterized in that: The light source (2) is fixed to the top side of the dark box (3) through an aluminum profile angle fixing piece.

5. The wheel hub bolt hole protection and leak-proofing installation and detection device according to claim 1, characterized in that: The dark box (3) is assembled by an aluminum profile frame and a panel made of an aluminum-plastic plate or a non-transparent acrylic plate material.

6. The wheel hub bolt hole protection plugging installation detection device according to claim 1, characterized in that: The trigger module (4) comprises two pairs of opposing photoelectric devices, and the two pairs of opposing photoelectric devices are fixed on the profile frame of the dark box (3) at positions corresponding to the top of the central control machine (5) and the bottom of the wheel hub.

7. The wheel hub bolt hole protection and leak-proofing installation and detection device according to claim 6, characterized in that: The conveying device comprises a conveying chain for conveying a wheel hub, and the trigger module (4) uses two pairs of incident lights to detect the conveying chain fixture and the wheel hub passing through.

8. The wheel hub bolt hole protection and leak-proofing installation and detection device according to claim 1, characterized in that: The central control machine (5) locates the bolt holes based on the image captured by the camera (1), analyzes and determines whether there is a protective blockage, and outputs the detection result.

9. The wheel hub bolt hole protection and leak-proofing installation and detection device according to claim 8, characterized in that: It also includes an alarm device that issues an alarm prompt based on the detection result; and / or, it also includes a distribution box (6) placed at the bottom of the dark box (3).

10. A wheel hub spraying line, characterized in that: It comprises the wheel hub bolt hole protection leakage plugging installation detection device according to any one of claims 1 to 9.

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