Visual alignment and detection system of screw machine

Abstract

The utility model discloses a visual alignment and detection system of a screw machine, which comprises a workpiece provided with a screw hole, and a frame body, the frame body is connected with a camera I and a camera II; the second camera is arranged below the first camera and is in sliding connection with the frame body; the outer sides of the first camera and the second camera are movably sleeved with light rings. Supporting plates are fixedly connected to the outer sides of the camera I and the camera II; a through groove is formed in the supporting plate; a sliding block is connected into the through groove in a sliding mode. The aperture is arranged at the lower end of the sliding block; the aperture moves up and down through sliding of the sliding block. The first camera and the second camera are arranged on the frame body and used in cooperation for precise calculation, screw installation deviation can be prevented, meanwhile, the adjustable aperture is arranged on the outer sides of the two cameras, fine adjustment of the aperture height is completed before photographing, the shadow size of the edge of a screw hole is reduced, and the definition of photographing pixels is improved; therefore, the calculation precision of the screw hole after photographing is ensured.

Description

Technical Field

[0001] This utility model relates to the field of machine vision positioning technology, and in particular to a visual alignment and detection system for screw machines. Background Technology

[0002] In industrial production, screws are essential for connecting products and parts. Screws are used to assemble one product part onto another. Before screwing, the screw holes on the product to be screwed need to be inspected for quality control. After installation, the screws are checked for misalignment and the number of screws installed. Currently, the pre-screw installation checks are usually done manually to ensure the holes on both parts are properly aligned. This inspection and evaluation method is inefficient, inaccurate, and costly in terms of labor. Utility Model Content

[0003] The purpose of this utility model is to solve the problems in the prior art by proposing a visual alignment and inspection system for screw machines.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A visual alignment and inspection system for a screw machine includes a workpiece with screw holes, and a frame. A first camera and a second camera are connected to the frame. The second camera is positioned below the first camera and slidably connected to the frame. An aperture is movably fitted around the outer sides of both cameras. A support plate is fixedly connected to the outer sides of both cameras. A through groove is provided on the support plate. A slider is slidably connected within the through groove. The aperture is positioned at the lower end of the slider. The aperture moves up and down via the slider.

[0006] Preferably, the support plate has a slot on its side; the slider has a through hole communicating with the slot; a plug is inserted between the slot and the through hole; and the slider is fixedly connected to the support plate through the plug.

[0007] Preferably, two support plates are arranged symmetrically on the outer side of the camera; and the heights of the slots on the two support plates correspond to each other.

[0008] Preferably, a limiting plate is connected to one side of the slider; and the limiting plate is slidably connected to a support plate on one side.

[0009] Preferably, a connecting block is movably connected to the lower end of the slider; the aperture is fixedly disposed at the lower end of the connecting block.

[0010] Preferably, a screw is threadedly inserted into the slider; the lower end of the screw is disposed in the connecting block and connected to a locking block; the screw is movably engaged with the connecting block through the locking block.

[0011] Preferably, a knob is also connected to the upper end of the screw; the connecting block moves up and down by rotating the screw.

[0012] Compared with the prior art, this utility model provides a visual alignment and inspection system for screw machines, which has the following beneficial effects:

[0013] 1. The screw machine's vision alignment and inspection system uses two cameras mounted on the frame. First, the top-mounted wide-view camera takes a picture to confirm whether the manual installation is in place. After installation, before screw fastening, the precision positioning camera takes a picture of each screw hole to confirm whether the screw's mounting hole position meets the fastening conditions. After fastening, the top-mounted wide-view camera takes another picture to confirm the screw installation. The two cameras work together to perform precise calculations, which can prevent screw installation deviations.

[0014] 2. The screw machine's vision alignment and inspection system uses adjustable apertures set on the outside of two cameras. Before taking a picture, the slider is moved to the approximate position, aligned with the slot and through hole, and the connector is inserted and locked. After coarse adjustment of the aperture height, the screw is rotated to move the locking block at the lower end of the screw downward. As the locking block moves, the connecting block and aperture move downward, completing the fine adjustment of the aperture height. This reduces the shadow size at the edge of the screw hole, improves the clarity of the captured pixels, and thus ensures the accuracy of the calculation after the screw hole is photographed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention.

[0018] In the diagram: 10. Workpiece; 11. Screw hole; 12. Frame; 13. Camera 1; 14. Camera 2; 15. Aperture; 21. Support plate; 22. Through slot; 23. Slider; 24. Slot; 25. Through hole; 26. Insert; 27. Limiting block; 31. Connecting block; 32. Screw; 33. Locking block; 34. Knob. Detailed Implementation

[0019] The following will refer to Figure 1-3This invention describes the specific implementation of a visual alignment and detection system for screw machines, including a workpiece 10 with screw holes 11, and a frame 11. A first camera 13 and a second camera 14 are connected to the frame 11. The second camera 14 is located below the first camera 13 and slidably connected to the frame 11. The first camera 13 and the second camera 14 correspond to the screw holes 11 at their lower ends, with the first camera 13 being a top-mounted wide-field camera and the second camera 14 being a precision positioning camera. An aperture 15 is movably fitted onto the outer side of both the first camera 13 and the second camera 14. A support plate 21 is fixedly connected to the outer side of both the first camera 13 and the second camera 14. A through groove 22 is provided on the support plate 21. A slider 23 is slidably connected within the through groove 22. The aperture 15 is located at the lower end of the slider 23 and moves up and down via the slider 23.

[0020] To facilitate height adjustment of the slider 23, a slot 24 is provided on the side of the support plate 21; the slider 23 has a through hole 25 communicating with the slot 24; a plug 26 is inserted between the slot 24 and the through hole 25; the slider 23 is fixedly connected to the support plate 21 through the plug 26. Two support plates 21 are provided and symmetrically arranged on the outside of the camera 13; and the heights of the slots 24 on the two support plates 21 correspond to each other.

[0021] One side of the slider 23 is connected to a limiting plate 27; one side of the limiting plate 27 is slidably connected to the support plate 21 to prevent the slider 23 from moving laterally when it moves up and down, thus preventing deviation.

[0022] The lower end of the slider 23 is movably connected to a connecting block 31; the aperture 15 is fixedly disposed at the lower end of the connecting block 31. A screw 32 is threadedly inserted into the slider 23; the lower end of the screw 32 is disposed within the connecting block 31 and connected to a locking block 33; the screw 32 is movably engaged with the connecting block 31 via the locking block 33. A knob 34 is also connected to the upper end of the screw 32; the connecting block 31 moves up and down by rotating the screw 32.

[0023] During use, after the product workpiece 10 is installed, the top wide-view camera 13 takes a photo to confirm whether the manual installation is in place. After installation, before screw fastening, the precision positioning camera 14 takes a photo of each screw hole to confirm whether the screw mounting hole position meets the fastening conditions. If the fastening conditions are met, the precision positioning camera takes a photo of each screw hole to confirm the deviation data of the hole position. After fastening, the top wide-view camera 13 of the screw machine takes another photo to confirm the screw installation status, which can prevent screw installation deviation. Before taking the photo, the top wide-view camera 13 can take a photo to confirm whether the screw installation is in place. To improve image sharpness, the height of the aperture 15 on the outer side of the camera is adjusted. After moving the slider 23 to the approximate position above the aperture 15, the slider is aligned with the slot 24 and the through hole 25 and the connector 26 is inserted and locked. After coarse adjustment of the aperture 15 height, the screw 32 is rotated to move the locking block 33 at the lower end of the screw downward. As the locking block 33 moves, it drives the connecting block 31 and the aperture 15 downward, thus completing the fine adjustment of the aperture 15 height. This reduces the shadow size at the edge of the screw hole, improves the sharpness of the captured pixels, and ensures the accuracy of the post-image calculation of the screw hole.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A visual alignment and inspection system for a screw machine, comprising a workpiece (10) having screw holes (11) thereon, characterized in that, It also includes a frame (11); a camera (13) and a camera (14) are connected to the frame (11); the camera (14) is located below the camera (13) and is slidably connected to the frame (11); an aperture (15) is movably fitted on the outside of both the camera (13) and the camera (14); a support plate (21) is fixedly connected to the outside of both the camera (13) and the camera (14); a through groove (22) is provided on the support plate (21); a slider (23) is slidably connected in the through groove (22); the aperture (15) is located at the lower end of the slider (23); the aperture (15) moves up and down by sliding the slider (23).

2. The screw machine vision alignment and inspection system according to claim 1, characterized in that, The support plate (21) has a slot (24) on its side; the slider (23) has a through hole (25) communicating with the slot (24); a plug (26) is inserted between the slot (24) and the through hole (25); the slider (23) is fixedly connected to the support plate (21) through the plug (26).

3. The screw machine vision alignment and inspection system according to claim 2, characterized in that, The support plates (21) are arranged in two symmetrical positions on the outside of the camera (13); and the heights of the slots (24) on the two support plates (21) are corresponding.

4. The screw machine vision alignment and inspection system according to claim 1, characterized in that, One side of the slider (23) is connected to a limiting plate (27); one side of the limiting plate (27) is slidably connected to the support plate (21).

5. The screw machine vision alignment and inspection system according to claim 1, characterized in that, The lower end of the slider (23) is also movably connected to a connecting block (31); the aperture (15) is fixedly set at the lower end of the connecting block (31).

6. The screw machine vision alignment and inspection system according to claim 5, characterized in that, A screw (32) is threaded onto the slider (23); the lower end of the screw (32) is located inside the connecting block (31) and connected to a locking block (33); the screw (32) is movably engaged with the connecting block (31) through the locking block (33).

7. The screw machine vision alignment and inspection system according to claim 6, characterized in that, A knob (34) is also connected to the upper end of the screw (32); the connecting block (31) moves up and down by rotating the screw (32).

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