A car weather strip defect detection and marking device

Abstract

The utility model discloses a kind of automobile sealing strip defect detection marking device, it is related to automobile sealing strip defect detection field, the utility model includes machine body and two top plates, the top of machine body is equipped with two support seat. The utility model is provided with oil guide cavity, oil discharge hole, oil injection pipe and plugging plug, when it needs to lubricate screw rod, staff can pull out plugging plug upward, after plugging plug moves out from oil injection pipe, staff can add lubricating oil to oil injection pipe, lubricating oil flows into oil guide cavity, and flows into screw rod by oil discharge hole, and after adding lubricating oil to oil guide cavity, staff rotates screw rod by rotating disc again, so that movable seat moves, and then so that lubricating oil in oil guide cavity can flow to other parts on the surface of screw rod, lubricating treatment can be carried out on the surface of screw rod by the mode, lubrication can be carried out on the surface of screw rod without taking out dustproof cylinder and top plate and other structures, simplify the operation step of lubrication.

Description

Technical Field

[0001] This utility model relates to the field of automotive sealing strip defect detection, specifically an automotive sealing strip defect detection marking device. Background Technology

[0002] The automotive sealing strip defect detection and marking device is an industrial piece of equipment that integrates automated detection and marking functions. It is used on production lines for automotive sealing strips (seales for doors, windows, trunks, etc.). Through technologies such as visual recognition and sensor detection, it identifies product defects (such as cracks, bubbles, missing adhesive, dimensional deviations, etc.) in real time and automatically marks the defect locations for subsequent repair or sorting. This device improves the efficiency of quality control in sealing strip production, reduces manual inspection costs, and is suitable for automated production lines in automotive parts manufacturing.

[0003] Existing automotive sealing strip defect detection and marking devices typically employ a CCD camera and laser marking head for defect detection and marking. They also include a lifting mechanism to adjust the height of the CCD camera and laser marking head. This lifting mechanism is generally driven by a hydraulic cylinder or a drive motor and lead screw. Some devices use a foldable dust cover on the lead screw to protect it from dust or oil that could affect its lifespan. While the dust cover protects the lead screw, lubrication is still required periodically to ensure smooth rotation of the threaded seat. However, the dust cover makes it inconvenient for operators to apply lubricant directly to the lead screw. The dust cover must be removed before lubrication, and then reinstalled afterward, making the process cumbersome and reducing lubrication efficiency. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a marking device for detecting defects in automotive sealing strips, so as to solve the technical problem that it is inconvenient to lubricate the lead screw after the dust cover protects it.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a marking device for detecting defects in automotive sealing strips, comprising a body and two top plates. Two support seats are installed on the top of the body. The top of each of the two support seats is connected to a lead screw via a sealed bearing. The outer wall of each lead screw is fitted with a movable seat. The top of the movable seat and the bottom of the top plate are bolted to the bottom of the movable seat and the top of the support seat, respectively, and sealing rings are installed thereon. A dustproof sleeve is installed between every two sealing rings. The interior of each of the two movable seats is provided with an oil guiding chamber and multiple oil drain holes. An oil injection pipe is connected to one side of each of the two movable seats, and a sealing plug is detachably installed at the top of the oil injection pipe.

[0006] By adopting the above technical solution, when the lead screw needs to be lubricated, the operator can remove the sealing plug from the oil injection pipe, and then the oil injection pipe is no longer blocked. Then the lubricating oil can be added to the oil injection pipe.

[0007] Furthermore, a CCD camera is mounted on one side of one of the movable seats, and a ring-shaped LED light is mounted on the bottom of the CCD camera.

[0008] By adopting the above technical solution, the moving sealing strip can be photographed in real time by a CCD camera, while the ring LED light can serve as illumination.

[0009] Furthermore, a laser marking head is installed on one side of another of the movable seats, and the movable seat is threadedly connected to the lead screw.

[0010] By adopting the above technical solution, the laser marking head can mark dot-shaped and line-shaped symbols on the surface of the sealing strip.

[0011] Furthermore, the lead screw is located inside the dustproof cylinder, which is made of nylon cloth.

[0012] By adopting the above technical solution, the dustproof cylinder can protect the lead screw, thereby preventing dust or stains from adhering to the lead screw and extending its service life.

[0013] Furthermore, the oil injection pipe is connected to the oil guide cavity, and the oil discharge hole is connected to the oil guide cavity.

[0014] By adopting the above technical solution, lubricating oil can flow into the oil guide cavity through the oil injection pipe, then into the oil drain hole, and finally onto the lead screw through the oil drain hole to lubricate the lead screw.

[0015] Furthermore, sealing gaskets are installed on the top and bottom of the four sealing rings, and the sealing gaskets are made of silicone rubber.

[0016] By adopting the above technical solution, the sealing gasket can improve the sealing performance between the sealing ring and the movable seat, the sealing ring and the support seat, and the sealing ring and the top plate.

[0017] Furthermore, two guide rods are installed on the top of the two support seats, and a top plate is bolted to the top of the guide rods. The guide rods pass through the movable seats.

[0018] By adopting the above technical solution, the guide rod can guide the movable seat, thereby improving the stability of the movable seat when it moves and preventing the movable seat from rotating.

[0019] Furthermore, the top end of the lead screw passes through the top plate and is bolted to a turntable, and a rubber ring is installed at the bottom of the turntable, with the bottom of the rubber ring being smooth and fitting against the top of the top plate.

[0020] By adopting the above technical solution, it is convenient for staff to rotate the lead screw via a turntable, and the rotation of the lead screw will drive the movable seat to move.

[0021] Furthermore, a bracket is installed on one side of the top of the machine body, and a computer is installed on the top of the bracket. The computer is electrically connected to the laser marking head and the CCD camera respectively.

[0022] By adopting the above technical solution, the bracket can support the computer, and the computer can use professional software such as Halcon and OpenCV to process the sealing strip image captured by the CCD camera in real time, identify defect types such as cracks, bubbles, and missing glue, and determine the location and severity of the defects.

[0023] Furthermore, a transmission frame is installed on the top of the machine body, and a transmission belt is installed on the transmission frame.

[0024] By adopting the above technical solution, the conveyor belt facilitates the transport of the sealing strip.

[0025] In summary, the present invention has the following main advantages: This invention features an oil guide cavity, an oil drain hole, an oil injection pipe, and a sealing plug. When lubrication of the lead screw is required, the operator can pull out the sealing plug upwards. After the sealing plug is removed from the oil injection pipe, lubricating oil can be added to the oil injection pipe. The lubricating oil then flows into the oil guide cavity and through the oil drain hole onto the lead screw. After adding lubricating oil into the oil guide cavity, the operator can rotate the lead screw using a turntable, causing the movable seat to move. This allows the lubricating oil in the oil guide cavity to flow to other parts of the lead screw surface. This method allows for lubrication of the lead screw surface without removing the dust cover and top plate, simplifying the lubrication process and improving the lubrication efficiency of the lead screw surface. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall back structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the dustproof cylinder of this utility model; Figure 4 This is a schematic diagram of the movable seat structure of this utility model; Figure 5 This is a schematic diagram of the CCD camera structure from a low angle according to this utility model; Figure 6 This is a schematic diagram of the dustproof cylinder structure of this utility model; Figure 7 For the present utility model Figure 3 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Machine body; 2. Conveyor belt; 3. Support frame; 4. Computer; 5. Support base; 6. Guide rod; 7. Top plate; 8. Turntable; 9. Lead screw; 10. Movable seat; 11. CCD camera; 12. Laser marking head; 13. Ring LED light; 14. Sealing ring; 15. Sealing gasket; 16. Oil guide chamber; 17. Oil drain hole; 18. Oil injection pipe; 19. Sealing plug; 20. Dustproof casing; 21. Transmission frame; 22. Control box. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] Example 1: A marking device for detecting defects in automotive sealing strips, such as Figures 1-7As shown, the device includes a body 1 and two top plates 7. Two support seats 5 are mounted on the top of the body 1. Each support seat 5 has a lead screw 9 connected to its top via a sealed bearing. Movable seats 10 are fitted onto the outer walls of both lead screws 9. Sealing rings 14 are bolted to the top of the movable seats 10 and the bottom of the top plate 7, and to the bottom of the movable seats 10 and the top of the support seats 5. A dustproof sleeve 20 is installed between every two sealing rings 14. Each of the two movable seats 10 has an oil guide chamber 16 and multiple oil drain holes 17. An oil injection pipe 18 is connected to one side of each of the two movable seats 10. The end is equipped with a sealing plug 19, which is compatible with the oil injection pipe 18. The sealing plug 19 is made of silicone rubber. When the lead screw 9 needs to be lubricated, the operator can remove the sealing plug 19 from the oil injection pipe 18. At this time, the oil injection pipe 18 is no longer blocked, and then lubricating oil can be added into the oil injection pipe 18. The oil injection pipe 18 is connected to the oil guide cavity 16, and the oil drain hole 17 is connected to the oil guide cavity 16. The lubricating oil can flow into the oil guide cavity 16 through the oil injection pipe 18, then into the oil drain hole 17, and then flow onto the lead screw 9 through the oil drain hole 17 to lubricate the lead screw 9.

[0031] See Figures 1-6 A CCD camera 11 is installed on one side of one movable seat 10, and a ring LED light 13 is installed at the bottom of the CCD camera 11. The CCD camera 11 can capture real-time images of the moving sealing strip, while the ring LED light 13 can provide illumination. A laser marking head 12 is installed on one side of another movable seat 10. The movable seat 10 is threadedly connected to the lead screw 9. The laser marking head 12 can mark dot-shaped and line-shaped symbols on the surface of the sealing strip. The lead screw 9 is located inside the dustproof cylinder 20. Sealing gaskets 15 are installed on the top and bottom of the four sealing rings 14. The sealing gaskets 15 are made of silicone rubber. The installation of the sealing gaskets 15 can improve the sealing between the sealing rings 14 and the movable seat 10, the sealing rings 14 and the support seat 5, and the sealing rings 14 and the top plate 7.

[0032] Specifically, the top of the lead screw 9 passes through the top plate 7 and is bolted to a turntable 8. A rubber ring is installed at the bottom of the turntable 8, and the bottom of the rubber ring is smooth and fits against the top of the top plate 7, making it easy for the operator to rotate the lead screw 9 via the turntable 8. The rotation of the lead screw 9 will drive the movable seat 10 to move. A bracket 3 is installed on one side of the top of the machine body 1, and a computer 4 is installed on the top of the bracket 3. The computer 4 is electrically connected to the laser marking head 12 and the CCD camera 11 respectively. The laser marking head 12 and the CCD camera 11 are connected to the computer 4 via cables such as USB, network cable, and PCIe. The bracket 3 can support the computer 4, and the computer 4 can be connected via Halcon and OpenCV. Professional software is used to process the sealing strip images captured by the CCD camera 11 in real time, such as image noise reduction, edge extraction, feature comparison, identification of defect types such as cracks, bubbles, and missing glue, and determination of defect location and severity. A transmission frame 21 is also installed on the top of the machine body 1, and a transmission belt 2 is installed on the transmission frame 21. The setting of the transmission belt 2 facilitates the transport of the sealing strip. A control box 22 is installed on the upper side of one side of the machine body 1, and the control box 22 is electrically connected to the ring LED light 13 and the transmission belt 2 respectively, so that the ring LED light 13 and the transmission belt 2 can be started or stopped through the control box 22.

[0033] Example 2: Based on the above embodiment 1, in order to improve the stability of the movable seat 10 when it moves, it is necessary to guide the movable seat 10, so the following structure will be set.

[0034] Specifically, two guide rods 6 are installed on the top of the two support seats 5. The top plate 7 is bolted to the top of the guide rods 6. The guide rods 6 pass through the movable seat 10 and can guide the movable seat 10, thereby improving the stability of the movable seat 10 when it moves and preventing the movable seat 10 from rotating.

[0035] Example 3: Based on the above embodiment 1, in order to enable the dustproof cylinder 20 to be folded or unfolded, the following materials will be used to make the dustproof cylinder 20.

[0036] See Figures 1-7 The dust cover 20 is made of nylon cloth. The dust cover 20 can shield and protect the lead screw 9, thereby preventing dust or stains from adhering to the lead screw 9 and thus extending the service life of the lead screw 9.

[0037] The working principle of this utility model is as follows: First, when using it, the power is turned on, then the computer 4 is turned on and the laser marking head 12, CCD camera 11, and ring LED light 13 are started. Then, the conveyor belt 2 is started, and the car sealing strip is placed on the conveyor belt 2. The car sealing strip is transported by the conveyor belt 2. After the sealing strip enters the detection area, the ring LED light 13 illuminates the surface, and the CCD camera 11 scans and acquires images line by line. The images are transmitted to the image processing unit through the image acquisition card. After the image processing software preprocesses the image, it identifies the bubble (0.3mm in diameter) through a deep learning model and records the defect position as "800mm from the starting point". The detection system sends the defect position and type information to the control system. The control system calculates the distance between the detection point and the marking point (e.g., 300mm), and obtains a delay time of 0.6 seconds (300mm ÷ 0.5m / s). When the encoder feedback indicates that the sealing strip has moved to the "800mm" position, the control system triggers laser marking. The laser generator outputs a laser beam, and the galvanometer controls the beam to focus on the defect, burning out an "×". The markings (2mm x 2mm) are applied to the sealing strip, which is then conveyed to the end where operators or automated equipment can sort out defective parts based on the markings. The dust cover 20 is made of nylon cloth, which can protect the lead screw 9 and prevent dust or dirt from adhering to the lead screw 9. It prevents contaminants from entering the thread groove of the lead screw and aggravating the friction between the movable seat and the lead screw, and prevents scratches on the surface of the lead screw and a decrease in accuracy. At the same time, when the movable seat 10 moves, it can squeeze the dust cover 20 to fold or unfold it. By setting the sealing ring 14 and the sealing gasket 15, the sealing performance between the sealing ring 14 and the movable seat 10, the sealing ring 14 and the support seat 5, and the sealing ring 14 and the top plate 7 is improved. When lubrication of the lead screw 9 is required, the operator can pull out the sealing plug 19 upwards. After the sealing plug 19 is removed from the oil injection pipe 18, the operator can add lubricating oil into the oil injection pipe 18. The lubricating oil then flows into the oil guide cavity 16 and flows into the lead screw 9 through the oil drain hole 17. After adding lubricating oil into the oil guide cavity 16, the operator can rotate the lead screw 9 through the turntable 8, causing the movable seat 10 to move. This allows the lubricating oil in the oil guide cavity 16 to flow to other parts of the lead screw 9 surface. In this way, the surface of the lead screw 9 can be lubricated.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A marking device for detecting defects in automotive sealing strips, comprising a body (1) and two top plates (7), characterized in that: The top of the body (1) is equipped with two support seats (5). The top of each of the two support seats (5) is connected to a lead screw (9) through a sealed bearing. The outer walls of the two lead screws (9) are fitted with movable seats (10). The top of the movable seat (10) and the bottom of the top plate (7) are fitted with sealing rings (14) through bolts. A dustproof sleeve (20) is installed between each pair of sealing rings (14). The interior of each of the two movable seats (10) is provided with an oil guide cavity (16) and multiple oil drain holes (17). An oil injection pipe (18) is connected to one side of each of the two movable seats (10), and a sealing plug (19) is detached from the top of the oil injection pipe (18).

2. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: A CCD camera (11) is mounted on one side of one of the movable seats (10), and a ring LED light (13) is mounted on the bottom of the CCD camera (11).

3. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: A laser marking head (12) is mounted on one side of another of the movable seats (10), and the movable seat (10) is threadedly connected to the lead screw (9).

4. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: The lead screw (9) is located inside the dustproof cylinder (20), which is made of nylon cloth.

5. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: The oil injection pipe (18) is connected to the oil guide cavity (16), and the oil discharge hole (17) is connected to the oil guide cavity (16).

6. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: A sealing gasket (15) is installed on the top and bottom of each of the four sealing rings (14), the sealing gasket (15) being made of silicone rubber.

7. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: Two guide rods (6) are also installed on the top of the two support seats (5). The top of the guide rods (6) is bolted to a top plate (7). The guide rods (6) pass through the movable seat (10).

8. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: The top end of the lead screw (9) passes through the top plate (7) and is bolted to a turntable (8). A rubber ring is installed at the bottom of the turntable (8), and the bottom of the rubber ring is smooth and fits against the top of the top plate (7).

9. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: A bracket (3) is installed on one side of the top of the body (1), and a computer (4) is installed on the top of the bracket (3). The computer (4) is electrically connected to the laser marking head (12) and the CCD camera (11).

10. The automotive sealing strip defect detection and marking device according to claim 1, characterized in that: The top of the body (1) is also equipped with a transmission frame (21), on which a transmission belt (2) is installed.

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