Line scanning camera with adjusting mechanism for optical appearance detection

Abstract

The utility model relates to the field of optical appearance detection, and discloses an optical appearance detection line scanning camera with an adjusting mechanism, which comprises a camera frame and camera seats, the front end of the camera frame is fixedly connected with two groups of camera seats, and each group of camera seats is internally provided with two groups of lifting grooves distributed along the height direction of the camera seats; a moving plate is embedded in the lifting groove, a camera controller is fixedly connected to the front end of the moving plate, a lens is installed at the bottom end of the camera controller, and a distance adjusting mechanism is arranged at the rear end of the camera frame. According to the linear scanning camera with the adjusting mechanism for optical appearance detection, the first motor is arranged, the first motor drives the linear screw rod to rotate, the threaded block drives the two sets of moving plates to move up and down in the lifting groove, and the distance between a lens of the camera controller and an object is adjusted; on the basis of optical zooming, mechanical movement is matched to realize more flexible height adjustment, so that products with different sizes are shot and detected, and the problems that the assembly is fixed and the height is inconvenient to adjust are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical appearance detection, in particular to a line-scan camera for optical appearance detection with an adjustment mechanism. Background Technique

[0002] Optical appearance detection is mainly used to detect defects on the surface of products, such as scratches, stains, unevenness, etc. Through optical appearance detection, unqualified products can be quickly and accurately found and removed, ensuring the stability of product quality. As an important part of the optical appearance detection device, the line-scan camera scans the surface of the product row by row through a high-resolution linear sensor to obtain accurate image data.

[0003] At present, most of the line-scan cameras for optical appearance detection commonly used on the market adopt a fixed assembly method, resulting in the inability to quickly adjust the distance between the camera and the detected object. When facing objects with large size differences, only optical zoom is relied on for distance adjustment. However, the range of optical zoom is limited, which may lead to image distortion or insufficient resolution, affecting the detection accuracy. The fixed camera position limits the flexibility of the detection system. When different-sized products need to be detected, operators have to perform cumbersome manual adjustments, increasing the operation complexity and time cost.

[0004] Therefore, a line-scan camera for optical appearance detection with an adjustment mechanism is needed to solve the above technical defects. Content of the Utility Model

[0005] The purpose of the utility model is to provide a line-scan camera for optical appearance detection with an adjustment mechanism to solve the problems that the distance between the camera and the detected object cannot be quickly adjusted and cumbersome adjustments are required when detecting products of different sizes as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A line-scan camera for optical appearance detection with an adjustment mechanism, including a camera frame and a camera base. Two groups of camera bases are fixedly connected to the front end of the camera frame. Two groups of lifting grooves distributed along the height direction of the camera base are opened in each group of camera bases. A moving plate is embedded in the lifting groove. A camera controller is fixedly connected to the front end of the moving plate. A lens is installed at the bottom end of the camera controller. A distance adjustment mechanism is arranged at the rear end of the camera frame; the distance adjustment mechanism includes a first motor fixedly connected to the top end of the camera frame. The output shaft of the first motor is fixedly connected with a linear screw rod. A threaded block is sleeved outside the linear screw rod. A connecting rod is fixedly connected to the outside of the threaded block. Both sides of the connecting rod are welded to the moving plate respectively.

[0007] Preferably, the linear screw rod is vertically assembled between the lifting grooves, and the moving plate is embedded in the lifting groove and moves up and down.

[0008] Preferably, a fixing bolt is fixedly connected between the camera base and the camera frame. A wire harness frame is fixedly connected to the top end of the camera base. A fixing screw is fixedly connected between the wire harness frame and the camera base. A serrated groove is formed in the wire harness frame.

[0009] Preferably, a wire board is movably assembled in the serrated groove. A circular hole is formed in the middle of the wire board. The four corners of the wire board are snap-fitted and fixed with the serrated groove.

[0010] Preferably, a second motor is fixedly connected to the bottom of the rear end of the camera frame. A gear is fixedly connected to the output shaft of the second motor. A rack is respectively meshed and connected above and below the gear. A slider is fixedly connected to each of the racks. Two sets of sliding grooves are formed at the bottom end inside the camera frame. The slider is embedded and moves in the sliding groove. A cover plate is welded to one side of the slider. A dust-free flannelette is assembled in the cover plate.

[0011] Preferably, the rack and the gear form a centrosymmetric structure, and the sliding grooves are symmetrically distributed about the axis of the gear.

[0012] Preferably, a reserved groove is machined on the inner side of the cover plate, and the four corners of the dust-free flannelette are embedded in the reserved groove.

[0013] Preferably, support grooves are formed on both sides inside the camera frame. A bracket is inserted into the support groove. An assembly groove is formed on the outer wall of the camera frame. An assembly bolt is fixedly connected between the assembly groove and the bracket.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The line-scan camera for optical appearance detection with an adjustment mechanism not only realizes more flexible height adjustment by combining mechanical movement on the basis of optical zoom, so as to perform shooting detection on products with different sizes, realizes orderly wiring of the camera without scattering, but also realizes covering and wiping of the lens, reducing lens contamination;

[0015] (1) By providing a first motor, a linear screw, a threaded block, a moving plate, and a lifting groove, two camera controllers synchronously shoot products, and a complete detection picture is formed after the pictures are pieced together. Since the sizes of the products are different, a distance adjustment mechanism is provided. By driving the linear screw to rotate through the first motor, the threaded block drives the two moving plates to move up and down in the lifting groove, adjusting the distance between the lens of the camera controller and the object, and realizing more flexible height adjustment by combining mechanical movement on the basis of optical zoom, so as to perform shooting detection on products with different sizes;

[0016] (2) By providing a camera base, a wire harness rack, a wire board, and a serrated groove, the wire harness rack is fixed at the top of the camera base. The connecting wires between the camera controller and the system pass through the wire holes of the wire board, facilitating connection with external machines. The wire board can be pushed left and right within the serrated groove, adjusted in position after overcoming the friction force, and has a fixing function, making the wiring of the entire camera orderly and preventing it from being scattered;

[0017] (3) By providing a second motor, a gear, a rack, a slider, a chute, a cover plate, and a dust-free flannelette, after the detection is completed, the gear is driven to rotate by the second motor at the bottom of the rear end of the camera rack, thereby simultaneously pushing two groups of racks to move relatively, causing the sliders to move towards the bottom of the lens within the chutes respectively. The cover plate moves to cover the bottom of the lens, and the dust-free flannelette cleans and wipes the lens, preventing external stains, dust, water vapor, etc. from contaminating the lens, reducing the loss of the fineness of the captured image caused by lens damage, and improving the stability of the observation. Description of the Drawings

[0018] Figure 1 is the front view structural schematic diagram of the present utility model;

[0019] Figure 2 is the rear view structural schematic diagram of the present utility model;

[0020] Figure 3 is the top view structural schematic diagram of the wire harness rack of the present utility model;

[0021] Figure 4 is the top view structural schematic diagram of the cover plate of the present utility model.

[0022] In the figure: 1, camera rack; 2, fixing screw; 3, wire harness rack; 4, wire board; 5, first motor; 6, camera base; 7, lifting groove; 8, fixing bolt; 9, moving plate; 10, camera controller; 11, lens; 12, chute; 13, slider; 14, cover plate; 15, assembly groove; 16, bracket; 17, assembly bolt; 18, support groove; 19, linear screw; 20, threaded block; 21, connecting rod; 22, rack; 23, gear; 24, second motor; 25, serrated groove; 26, dust-free flannelette. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1: Please refer to Figures 1-4, A line scan camera for optical appearance detection with an adjustment mechanism, including a camera frame 1 and a camera base 6. Two groups of camera bases 6 are fixedly connected to the front end of the camera frame 1. Two lifting grooves 7 distributed along the height direction of the camera base 6 are opened in each group of camera bases 6. A moving plate 9 is embedded in the lifting groove 7. The front end of the moving plate 9 is fixedly connected to a camera controller 10. A lens 11 is installed at the bottom end of the camera controller 10. A distance adjustment mechanism is arranged at the rear end of the camera frame 1; The distance adjustment mechanism includes a first motor 5 fixedly connected to the top end of the camera frame 1. The output shaft of the first motor 5 is fixedly connected to a linear screw 19. A threaded block 20 is sleeved outside the linear screw 19. A connecting rod 21 is fixedly connected to the outside of the threaded block 20. The two sides of the connecting rod 21 are respectively welded to the moving plate 9. The linear screw 19 is vertically assembled between the lifting grooves 7. The moving plate 9 is embedded in the lifting groove 7 and moves up and down. Support grooves 18 are opened on both sides inside the camera frame 1. A bracket 16 is inserted into the support groove 18. An assembly bolt 17 is fixedly connected between the assembly groove 15 on the outer wall of the camera frame 1 and the bracket 16;

[0025] Specifically, as Figure 1 and Figure 2 shown, the two camera controllers 10 synchronously shoot the product, and the pictures are pieced together to form a complete detection picture. Since the sizes of the products are different, a distance adjustment mechanism is provided. By driving the linear screw 19 to rotate through the first motor 5, the threaded block 20 drives the two moving plates 9 to move up and down in the lifting grooves 7, adjusting the distance between the lens 11 of the camera controller 10 and the article, and realizing more flexible height adjustment by cooperating with mechanical movement on the basis of optical zoom, so as to shoot and detect products of different sizes.

[0026] Embodiment 2: A fixing bolt 8 is fixedly connected between the camera base 6 and the camera frame 1. A wire harness bracket 3 is fixedly connected to the top end of the camera base 6. A fixing screw 2 is fixedly connected between the wire harness bracket 3 and the camera base 6. A sawtooth groove 25 is opened in the wire harness bracket 3. A wire board 4 is movably assembled in the sawtooth groove 25. A circular hole is opened in the middle position of the wire board 4. The four corners of the wire board 4 are snap-fixed with the sawtooth groove 25;

[0027] Specifically, as Figure 1 and Figure 3 shown, a wire harness bracket 3 is fixed to the top end of the camera base 6. The connecting wires of the camera controller 10 and the system pass through the wire holes of the wire board 4, which is convenient for connecting with external machines. The wire board 4 can be pushed left and right in the sawtooth groove 25, adjusts its position after overcoming the friction force, and has a fixing function, making the wiring of the whole camera orderly and not scattered.

[0028] Embodiment 3: A second motor 24 is fixedly connected to the bottom of the rear end of the camera holder 1. The output shaft of the second motor 24 is fixedly connected to a gear 23. The gear 23 is meshed with a rack 22 above and below respectively. Each rack 22 is fixedly connected with a slider 13. Two sets of chutes 12 are opened at the bottom end inside the camera holder 1. The slider 13 is embedded in the chute 12 and moves. One side of the slider 13 is welded with a cover plate 14. A dust-free flannelette 26 is assembled inside the cover plate 14. The rack 22 and the gear 23 form a centrosymmetric structure. The chutes 12 are symmetrically distributed about the axis of the gear 23. A reserved groove is machined on the inner side of the cover plate 14. The four corners of the dust-free flannelette 26 are embedded in the reserved groove;

[0029] Specifically, as Figure 1 and Figure 4 shown, after the detection is completed, the gear 23 is driven to rotate by the second motor 24 at the bottom of the rear end of the camera holder 1, so as to simultaneously push the two racks 22 to move relatively, so that the sliders 13 move towards the bottom of the lens 11 in the chutes 12 respectively, and the cover plate 14 moves to the bottom of the lens 11 to cover it. The dust-free flannelette 26 cleans and wipes the lens 11, preventing the lens 11 from being polluted by external stains, dust, water vapor, etc., and reducing the loss of the fineness of the captured image caused by the damage of the lens 11.

[0030] Working principle: Two camera controllers 10 synchronously shoot the product. After the pictures are pieced together, a complete detection picture is formed. Since the sizes of the products are different, a distance adjustment mechanism is provided. The first motor 5 drives the linear screw 19 to rotate, then the threaded block 20 drives the two moving plates 9 to move up and down in the lifting groove 7, adjusting the distance between the lens 11 of the camera controller 10 and the article. On the basis of optical zoom, mechanical movement is combined to achieve more flexible height adjustment, so as to shoot and detect products of different sizes. A wire harness holder 3 is fixed at the top end of the camera base 6. The connecting wires of the camera controller 10 and the system pass through the wire holes of the wire board 4, which is convenient for connecting with external machines. The wire board 4 can be pushed left and right in the sawtooth groove 25, and its position is adjusted after overcoming the friction force, and it has a fixing function, making the wiring of the whole camera orderly and not scattered. After the detection is completed, the gear 23 is driven to rotate by the second motor 24 at the bottom of the rear end of the camera holder 1, so as to simultaneously push the two racks 22 to move relatively, so that the sliders 13 move towards the bottom of the lens 11 in the chutes 12 respectively, and the cover plate 14 moves to the bottom of the lens 11 to cover it, preventing the lens 11 from being polluted by external stains, dust, water vapor, etc., and reducing the loss of the fineness of the captured image caused by the damage of the lens 11, improving the stability of observation.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A line scan camera for optical appearance inspection with an adjustment mechanism, comprising a camera frame (1) and a camera seat (6), characterized in that: The front end of the camera frame (1) is fixedly connected to two groups of camera seats (6), each group of camera seats (6) is provided with two groups of lifting slots (7) distributed along the height direction of the camera seats (6), a moving plate (9) is embedded in the lifting slot (7), a camera controller (10) is fixedly connected to the front end of the moving plate (9), a lens (11) is installed at the bottom end of the camera controller (10), and a distance adjustment mechanism is provided at the rear end of the camera frame (1); The distance adjustment mechanism comprises a first motor (5) fixedly connected to the top of the camera frame (1); the output shaft of the first motor (5) is fixedly connected to a linear screw (19); the linear screw (19) is externally sleeved with a threaded block (20); the threaded block (20) is externally fixedly connected to a connecting rod (21); and both sides of the connecting rod (21) are respectively welded to the movable plate (9).

2. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 1, characterized in that: The linear screw (19) is vertically assembled between the lifting grooves (7), and the movable plate (9) is embedded in the lifting grooves (7) to move up and down.

3. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 1, characterized in that: A fixing bolt (8) is fixedly connected between the camera seat (6) and the camera frame (1), a wiring harness frame (3) is fixedly connected to the top of the camera seat (6), a fixing screw (2) is fixedly connected between the wiring harness frame (3) and the camera seat (6), and a sawtooth groove (25) is provided in the wiring harness frame (3).

4. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 3, characterized in that: A wire plate (4) is movably mounted in the sawtooth groove (25), a circular hole is provided in the middle of the wire plate (4), and the four corners of the wire plate (4) are fixedly connected to the sawtooth groove (25) by clamping.

5. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 1, characterized in that: A second motor (24) is fixedly connected to the bottom of the rear end of the camera frame (1); the output shaft of the second motor (24) is fixedly connected to a gear (23); the gear (23) is meshed with racks (22) at the top and bottom, respectively; each rack (22) is fixedly connected to a slider (13); two groups of slide grooves (12) are provided at the bottom of the interior of the camera frame (1); the slider (13) is embedded in the slide groove (12) for movement; a cover plate (14) is welded to one side of the slider (13); a dust-free flannel cloth (26) is installed inside the cover plate (14).

6. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 5, characterized in that: The rack (22) and the gear (23) form a centrally symmetrical structure, and the slide groove (12) is symmetrically distributed about the axis of the gear (23).

7. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 5, characterized in that: A reserved groove is processed on the inner side of the cover plate (14), and the four corners of the dust-free flannel cloth (26) are embedded in the reserved groove.

8. The line scan camera for optical appearance inspection with an adjustment mechanism according to claim 1, characterized in that: Support grooves (18) are provided on both sides of the interior of the camera frame (1), a bracket (16) is inserted into the support groove (18), an assembly groove (15) is provided on the outer wall of the camera frame (1), and an assembly bolt (17) is fixedly connected between the assembly groove (15) and the bracket (16).

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