Automatic detection system for automobile parts defects based on multi-dimensional interpolation vision technology

Abstract

The present invention belongs to the technical field of automobile parts inspection, and in particular, relates to an automatic automobile parts defect inspection system based on multi-dimensional interpolation vision technology. Aiming at the problem that the existing device cannot clean the dust attached to the surface of the parts, which may cause the misjudgment or missed judgment of the defects of the parts, the following scheme is proposed, including a conveyor belt main body, a fixed frame, a fixed support plate, a multi-dimensional vision camera and a controller; the beneficial effect of the present invention is that when the first gear rotates, the two racks will move in the opposite direction, and then can indirectly drive the T-shaped slide plate to slide smoothly in the limit track, so that the bristles at the bottom of the rectangular plate can perform relative opening and closing movements. This opening and closing movement simulates the action of sweeping with a broom, and can more effectively clean the dust at different positions and shapes on the surface of the parts, ensuring that the parts image taken by the subsequent camera is clear, which is conducive to improving the accuracy of defect detection.

Description

Technical Field

[0001] The invention relates to an automatic detection device, in particular to an automatic detection system for automobile parts defects based on multi-dimensional interpolation vision technology, belonging to the technical field of automobile parts detection. Background Art

[0002] In the manufacturing process of automobile parts, the coating process is particularly complicated. The paint spraying process is easy to have various defects such as particles, shrinkage holes, welding slag, dirt, etc. through multiple processes such as primer, PVC, mid-coat, and topcoat. With the improvement of people's requirements for automobile performance and appearance, the surface defect detection of automobile parts has become one of the difficult problems that automobile manufacturers must face. At present, the use of multi-dimensional interpolation vision technology can effectively improve the detection efficiency, save labor, reduce production costs, and thus improve economic benefits. Multi-dimensional interpolation vision detection includes some important components, such as light source, lens, camera, image acquisition card, data transmission, image processing and measurement software, etc.

[0003] In the prior art, there is a visual inspection-based defect detection device for automotive parts disclosed in announcement number CN219737301U, which sets an extrusion adjustment mechanism to limit the position of the parts relative to the support plate so that the parts can be placed stably, and the extrusion adjustment mechanism is used to adjust the height of the parts while flipping the parts, thereby changing the existing situation in which the parts need to be moved back and forth multiple times and manually flipped multiple times, thereby improving the detection efficiency of the parts. The above-mentioned prior art solutions have the following shortcomings: when the automatic defect detection device for automotive parts is used, due to the influence of factors such as the production environment, impurities such as dust often adhere to the surface of the parts, resulting in some minor scratches or cracks being covered by dust. When using a camera to perform defect detection on automotive parts, the dust on the surface of the parts will seriously interfere with the shooting effect of the camera, resulting in unclear pictures, making it difficult to accurately perform subsequent image analysis and defect recognition, which may cause misjudgment or omission of component defects and reduce the reliability of product quality control. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic detection system for automobile parts defects based on multi-dimensional interpolation vision technology in order to solve the problem that the above-mentioned device cannot clean the dust attached to the surface of the parts, which may cause misjudgment or omission of parts defects.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: an automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology, comprising a conveyor belt body, a fixed frame, a fixed support plate, a multi-dimensional vision camera and a controller, the fixed frame is installed on the surface of the conveyor belt body, and the conveyor belt body passes through the fixed frame, the fixed support plate is fixedly connected to one side of the surface of the fixed frame, and the installation position of the fixed support plate is located at the middle position of the side surface of the fixed frame, the multi-dimensional vision camera is fixedly installed on the bottom surface of the fixed support plate, and the controller is fixedly connected to one side surface of the fixed frame; The inner surface of the fixed frame is slidably connected to a lifting plate, and the surface of the lifting plate is rotatably connected to a telescopic sliding rod through a bearing, the moving end of the telescopic sliding rod passes through the lifting plate and extends to the lower side of the lifting plate, the bottom of the moving end of the telescopic sliding rod is coaxially fixedly connected to the first gear arranged at the lower side of the lifting plate, the bottom surface of the lifting plate is symmetrically fixedly connected to the limiting track, the interior of each limiting track is slidably connected to a T-shaped slide plate, the bottom surface of each T-shaped slide plate is fixedly connected to a rack, the bottom surface of each rack is fixedly connected to a rectangular plate, the bottom surface of each rectangular plate is fixedly connected to bristles, the two racks are respectively located on both sides of the first gear, and the two racks are meshed with the first gear, and the two racks are staggered relative to the first gear.

[0006] As a further solution of the present invention: electric push rods are symmetrically fixedly connected to the surface of the fixed frame, the output ends of the two electric push rods pass through the fixed frame and extend to the inner side of the fixed frame, and one end of the electric push rod extending to the inner side of the fixed frame is fixedly connected to the lifting plate.

[0007] As a further scheme of the present invention: one side of the surface of the fixed frame is rotatably connected to a first rotating rod through an L-shaped bracket, a driving motor is fixedly installed on the inner top surface of the fixed frame, the bottom end of the first rotating rod passes through the fixed frame and extends to the interior of the fixed frame, the bottom end of the first rotating rod is coaxially fixedly connected to the output end of the driving motor, the top end of the first rotating rod is fixedly connected to a turntable, the surface of the turntable is rotatably connected to a first hinge rod through a pin shaft 1 at a position near its outer periphery, the surface of the first hinge rod is rotatably connected to a second hinge rod through a pin shaft 2 at a position away from the turntable, the surface of the second hinge rod is equidistantly fixedly connected to second teeth, the telescopic slide rod is also rotatably connected to the surface of the fixed frame through a bearing 3, the top end of the telescopic slide rod extends to the upper side of the fixed frame, the rod body of the telescopic slide rod is coaxially fixedly sleeved with a second gear, and the second gear is meshingly connected to the second teeth.

[0008] As a further solution of the present invention: the telescopic sliding rod consists of an external fixed tube, an internal moving rod and a limit block, the limit block is symmetrically fixedly connected to the surface of the inner moving rod, the inner moving rod is slidably connected to the outer fixed tube through the limit block, the outer fixed tube is rotatably connected to the fixed frame through bearing three, and the inner moving rod is rotatably connected to the lifting plate through bearing one.

[0009] As a further solution of the present invention: the surface of the fixed frame is fixedly connected to the limiting seat, and the surface of the limiting seat is provided with an inverted convex groove, the second hinge rod is inserted in the inverted convex groove, and the second hinge rod and the limiting seat are slidably connected.

[0010] As a further solution of the present invention: a third slider is symmetrically fixedly connected to the surface of the lifting plate, and a strip groove matched with the third slider is symmetrically opened on the inner surface of the fixed frame. The third slider is inserted in the strip groove, and the third slider is slidably connected to the fixed frame.

[0011] As a further solution of the present invention: the surface of the lifting plate is symmetrically and equidistantly fixedly connected with a dust suction pipe, the top of the dust suction pipe is fixedly connected to a U-shaped delivery pipe, one side of the surface of the U-shaped delivery pipe is fixedly connected to a corrugated hose, the surface of the fixed frame is fixedly connected to a miniature vacuum cleaner body, the dust inlet pipe of the miniature vacuum cleaner body passes through the surface of the fixed frame, and the dust inlet pipe of the miniature vacuum cleaner body and the corrugated hose are fixedly connected.

[0012] As a further solution of the present invention: the dust suction ends of the dust suction pipes on both sides are inclined toward the bristles.

[0013] The beneficial effects of the present invention are: The present invention uses a telescopic slide rod, a lifting plate, a limiting track, a first gear, a rack, a rectangular plate, bristles and a T-shaped slide plate in coordination. First, the height position of the bristles as a whole can be adjusted by lifting the lifting plate to adapt to automobile parts of different height specifications, thereby enhancing the versatility of the device. The two racks are respectively located on both sides of the first gear and mesh with it. When the first gear rotates, the two racks will move in the opposite direction. Since the two racks are staggered relative to the first gear, they can drive the T-shaped slide plate to slide smoothly in the limiting track during the reverse movement, thereby making the bristles at the bottom of the rectangular plate perform a relative opening and closing movement. This opening and closing movement simulates an action similar to that of a broom when sweeping. Compared with simply fixing the bristles or moving the bristles in a single direction, it can more effectively clean dust at different positions and shapes on the surface of parts, avoid dust accumulation and residue in a corner, greatly improve the effect and efficiency of dust cleaning, ensure that the image of the parts taken by the subsequent camera is clear, and help improve the accuracy of defect detection. The present invention cooperates with a first rotating rod, a driving motor, a rotating disk, a first hinge rod, a second hinge rod, a second tooth, and a second gear by setting a first rotating rod, a driving motor drives the first rotating rod to rotate, thereby causing the rotating disk to rotate. The rotating disk, the first hinge rod and the second hinge rod form a connecting rod mechanism. When the rotating disk rotates, the first hinge rod performs a circular motion with the rotating disk, pulling the second hinge rod to perform a reciprocating motion. Since the second hinge rod has equidistant second teeth and meshes with the second gear on the telescopic slide rod, the movement of the second hinge rod can be converted into a reciprocating rotation of the telescopic slide rod. The rotation of the telescopic slide rod then causes the first gear to reciprocate, thereby allowing the two racks meshing with the first gear to drive the bristles to perform a reciprocating relative motion, thereby ensuring that dust is completely removed, effectively avoiding unclear images taken by the camera due to residual dust, and providing a more accurate image basis for defect detection of automotive parts. The present invention uses a dust suction pipe, a U-shaped delivery pipe, a mini vacuum cleaner body, and a corrugated hose in coordination with each other. When the bristles clean the dust on the surface of the automobile parts, the dust suction pipe can suction dust near the dust generating position. The dust collected by the dust suction pipe can be delivered to the mini vacuum cleaner body through the connection between the U-shaped delivery pipe and the corrugated hose. On the one hand, the vacuuming operation is carried out simultaneously with the brush cleaning, which can prevent the dust that has been cleaned from falling back onto the surface of the auto parts. In the actual cleaning process, only cleaning may cause the dust to fly and then reattach, but the vacuuming function can effectively avoid this situation and ensure the cleanliness of the surface of the parts, thereby improving the clarity of the subsequent camera images; On the other hand, multiple symmetrically and equidistantly arranged vacuum tubes can cover a larger area, making vacuuming more comprehensive and efficient. No matter where the bristles clean and generate dust, it can be absorbed in time by nearby vacuum tubes, enhancing the dust removal effect of the entire cleaning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ; Figure 4 The internal structure of the fixed frame in the present invention is shown in FIG. Figure 1 ; Figure 5 The internal structure of the fixed frame in the present invention is shown in FIG. Figure 2 ; Figure 6 It is a schematic diagram of the connection structure of the U-shaped conveying pipe, the dust suction pipe and the miniature vacuum cleaner body in the present invention; Figure 7 It is a schematic diagram of the connection structure of the lifting plate, the electric push rod and the telescopic slide rod in the present invention; Figure 8 A schematic diagram of the connection structure between the second gear and the second tooth in the present invention; Fig. 9 This is a schematic diagram of the connection structure between the bristles and the rectangular plate in the present invention; Fig.10 Schematic diagram of the connection structure between the first gear and the rack in the present invention Figure 1 ; Fig.11 Schematic diagram of the connection structure between the first gear and the rack in the present invention Figure 2 ; In the figure: 1. conveyor belt body; 2. fixed frame; 3. fixed support plate; 4. multi-dimensional visual camera; 5. controller; 6. electric push rod; 7. lifting plate; 8. telescopic slide rod; 9. first gear; 10. limit track; 11. T-shaped slide plate; 12. rectangular plate; 13. bristles; 14. rack; 16. third slide block; 18. drive motor; 19. first rotating rod; 20. turntable; 21. first hinged rod; 22. second hinged rod; 23. limit seat; 24. second tooth; 25. second gear; 26., mini vacuum cleaner body; 27. corrugated hose; 28. U-shaped conveying pipe; 29. ​​dust suction pipe; 30. protective cover; 31. strip groove. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0016] like Figures 1 to 11 As shown, an automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology includes a conveyor belt body 1, a fixed frame 2, a fixed support plate 3, a multi-dimensional vision camera 4 and a controller 5, wherein the fixed frame 2 is installed on the surface of the conveyor belt body 1, and the conveyor belt body 1 passes through the fixed frame 2, the fixed support plate 3 is fixedly connected to one side of the surface of the fixed frame 2, and the installation position of the fixed support plate 3 is located at the middle position of the side surface of the fixed frame 2, the multi-dimensional vision camera 4 is fixedly installed on the bottom surface of the fixed support plate 3, and the controller 5 is fixedly connected to one side surface of the fixed frame 2; The automobile parts are placed on the surface of the conveyor belt inside the conveyor belt body 1, and the conveyor belt is driven by the motor of the conveyor belt body 1 to transport the automobile parts. The automobile parts to be inspected pass under the multi-dimensional vision camera 4, and the multi-dimensional vision camera 4 is used to take pictures of the surface of the parts for comparative analysis, so as to detect surface defects of the automobile parts.

[0017] It should be noted that a defective product ejection mechanism is provided on one side of the conveyor belt body 1, which can push defective parts away from the conveyor belt surface for recovery.

[0018] The inner surface of the fixed frame 2 is slidably connected with a lifting plate 7, and the surface of the lifting plate 7 is rotatably connected with a telescopic slide rod 8 through a bearing. The moving end of the telescopic slide rod 8 passes through the lifting plate 7 and extends to the lower side of the lifting plate 7. The bottom of the moving end of the telescopic slide rod 8 is coaxially fixedly connected with the first gear 9 arranged at the lower side of the lifting plate 7. The bottom surface of the lifting plate 7 is symmetrically fixedly connected with a limited track 10. The interior of each limited track 10 is slidably connected with a T-shaped slide plate 11, and the bottom surface of each T-shaped slide plate 11 is fixedly connected with a rack 14. The bottom surface of each rack 14 is fixedly connected with a rectangular plate 12, and the bottom surface of each rectangular plate 12 is fixedly connected with bristles 13. The two racks 14 are respectively located on both sides of the first gear 9, and the two racks 14 are meshed with the first gear 9. The two racks 14 are staggered relative to the first gear 9. When the first gear 9 rotates, the two racks 14 will move in the opposite direction. Since the two racks 14 are staggered relative to the first gear 9, they can drive T The slide plate 11 slides smoothly in the limiting track 10, so that the bristles 13 at the bottom of the rectangular plate 12 perform a relative opening and closing movement. This opening and closing movement simulates the action of sweeping with a broom. Compared with simply fixing the bristles 13 or moving the bristles 13 in a single direction, it can more effectively clean the dust in different positions and shapes on the surface of the parts and avoid the dust from accumulating and remaining in a corner. Embodiment 2

[0019] Improvements based on Example 1: Furthermore, the surface of the fixed frame 2 is symmetrically fixedly connected with electric push rods 6, the output ends of the two electric push rods 6 pass through the fixed frame 2 and extend to the inner side of the fixed frame 2, one end of the electric push rod 6 extending to the inner side of the fixed frame 2 is fixedly connected to the lifting plate 7, and the lifting and lowering of the lifting plate 7 is controlled by the electric push rod 6, so the overall height position of the bristles 13 can be adjusted to adapt to automotive parts of different height specifications.

[0020] One side of the surface of the fixed frame 2 is rotatably connected with a first rotating rod 19 through an L-shaped bracket, a driving motor 18 is fixedly installed on the inner top surface of the fixed frame 2, the bottom end of the first rotating rod 19 passes through the fixed frame 2 and extends to the inside of the fixed frame 2, the bottom end of the first rotating rod 19 is coaxially fixedly connected with the output end of the driving motor 18, the top of the first rotating rod 19 is fixedly connected with a turntable 20, the surface of the turntable 20 is rotatably connected with a first hinge rod 21 through a pin shaft 1 at a position close to its periphery, the surface of the first hinge rod 21 is rotatably connected with a second hinge rod 22 through a pin shaft 2 at a position away from the turntable 20, the surface of the second hinge rod 22 is equidistantly fixedly connected with second teeth 24, the telescopic slide rod 8 is also rotatably connected to the surface of the fixed frame 2 through a bearing 3, the top end of the telescopic slide rod 8 extends to the upper side of the fixed frame 2, the rod body of the telescopic slide rod 8 is coaxially fixedly sleeved with a second gear 25, the second gear 24 is fixedly sleeved with a second gear 25, and the second gear 24 is fixedly sleeved with a second gear 25. The wheel 25 is meshed with the second teeth 24, and the first rotating rod 19 is driven to rotate by the driving motor 18, thereby rotating the turntable 20. The turntable 20, the first hinged rod 21 and the second hinged rod 22 constitute a connecting rod mechanism. When the turntable 20 rotates, the first hinged rod 21 makes a circular motion with the turntable 20, pulling the second hinged rod 22 to make a reciprocating motion. Since the second hinged rod 22 has equidistant second teeth 24 and is meshed with the second gear 25 on the telescopic slide rod 8, the movement of the second hinged rod 22 can be converted into the reciprocating rotation of the telescopic slide rod 8. The rotation of the telescopic slide rod 8 then causes the first gear 9 to reciprocate, thereby allowing the two racks 14 meshing with the first gear 9 to drive the bristles 13 to make a reciprocating relative movement, ensuring that the dust is completely removed, effectively avoiding unclear images taken by the camera due to dust residue, and providing a more accurate image basis for defect detection of automotive parts.

[0021] Furthermore, the telescopic slide rod 8 consists of an outer fixed tube, an inner movable rod and a limit block. The limit block is symmetrically fixedly connected to the surface of the inner movable rod. The inner movable rod is slidably connected in the outer fixed tube through the limit block. The outer fixed tube is rotatably connected to the fixed frame 2 through bearing three, and the inner movable rod is rotatably connected to the lifting plate 7 through bearing one. By setting the telescopic slide rod 8, it can be ensured that the lifting plate 7 will not affect the rotation of the telescopic slide rod 8 when it is raised or lowered.

[0022] The surface of the fixed frame 2 is fixedly connected to a limiting seat 23, and the surface of the limiting seat 23 is provided with an inverted convex groove, the second hinged rod 22 is inserted in the inverted convex groove, the second hinged rod 22 and the limiting seat 23 are slidably connected, and the moving trajectory of the second hinged rod 22 can be limited by the limiting seat 23 to ensure that the second tooth 24 on the second hinged rod 22 is always engaged with the second gear 25.

[0023] Furthermore, the surface of the lifting plate 7 is symmetrically fixedly connected with a third slider 16, and the inner surface of the fixed frame 2 is symmetrically provided with a strip groove 31 adapted to the third slider 16, the third slider 16 is inserted in the strip groove 31, and the third slider 16 is slidably connected to the fixed frame 2, which can limit the moving trajectory of the lifting plate 7. Embodiment 3

[0024] Improvements based on Example 1: Furthermore, a dust suction pipe 29 is symmetrically and equidistantly fixedly connected to the surface of the lifting plate 7, and a U-shaped delivery pipe 28 is fixedly connected to the top of the dust suction pipe 29, and a corrugated hose 27 is fixedly connected to one side of the surface of the U-shaped delivery pipe 28. A miniature vacuum cleaner body 26 is fixedly connected to the surface of the fixed frame 2, and a dust inlet pipe of the miniature vacuum cleaner body 26 passes through the surface of the fixed frame 2, and the dust inlet pipe of the miniature vacuum cleaner body 26 and the corrugated hose 27 are fixedly connected. When the bristles 13 clean the dust on the surface of the automobile parts, the dust suction pipe 29 can clean the dust near the dust generation position, and the dust collected by the dust suction pipe 29 can be transported to the miniature vacuum cleaner body 26 through the connection between the U-shaped delivery pipe 28 and the corrugated hose 29. The dust suction operation is performed synchronously with the cleaning of the bristles 13, which can prevent the cleaned dust from falling back onto the surface of the automobile parts again. In the actual cleaning process, only cleaning may cause the dust to fly and then re-attach, and the dust suction function can effectively avoid this situation, ensure the cleanliness of the surface of the parts, thereby improving the clarity of the subsequent camera images.

[0025] Furthermore, the dust suction ends of the dust suction pipes 29 on both sides are inclined toward the bristles 13, thereby enhancing the dust removal effect of the entire cleaning system.

[0026] Working principle: Before use, the user adjusts the distance between the bristles 13 and the workpiece according to the thickness of the automotive parts to be tested, so that the bristles 13 can contact the surface of the workpiece. During the adjustment, the two electric push rods 6 are controlled to extend synchronously by buttons. At this time, the electric push rods 6 can push the lifting plate 7 to move downward in the fixed frame 2 through the limiting action of the third slider 16, thereby adjusting the distance between the bristles 13 and other parts and the automotive parts. After the distance is adjusted, the electric push rods 6 can be stopped, and the conveyor belt body 1, the micro vacuum cleaner body 26 and the drive motor 18 can be started. Next, the automobile parts are placed on the conveyor belt body 1 at equal intervals, and the conveyor belt body 1 drives the parts to pass through the fixed frame 2; During this process, when the automobile parts are transported to the position below the bristles 13, the driving motor 18 is running and can drive the first rotating rod 19 to rotate, and the rotation of the first rotating rod 19 can drive the turntable 20 to rotate accordingly, and the rotation of the turntable 20 can drive the first hinged rod 21 to swing within a certain range, and the swing of the first hinged rod 21 can drive the second hinged rod 22 to move under the limiting action of the limiting seat 23, and the movement of the second hinged rod 22 can drive the second tooth 24 to follow the movement, because the second tooth 24 is meshed with the second gear 25 on the telescopic slide rod 8, and the telescopic slide rod 8 is rotatably connected to the lifting plate 7, when the second tooth 24 moves, the second gear 25 will rotate, and the first tooth 24 will rotate. The rotation of the second gear 25 can then drive the telescopic slide bar 8 to rotate, and then drive the first gear 9 at its bottom to rotate. The rotation of the first gear 9 can then make the racks 14 on both sides move relative to or oppositely in the limiting track 14. The movement of the rack 14 drives the bristles 13 on the rectangular plate 12 to move closer to or away from each other, and then the bristles 13 can be used to clean the surface of the component, which can more effectively clean the dust at different positions and shapes on the surface of the component, and avoid the dust on the surface of the component interfering with the shooting effect of the multi-dimensional visual camera 4, so that the subsequent image analysis and defect recognition are difficult to perform accurately, so as to prevent the misjudgment or omission of component defects and improve the reliability of product quality control. At the same time, the operation of the mini vacuum cleaner body 26 generates suction, and then the dust generated during the cleaning process can be sucked away through the U-shaped delivery pipe 28 and the corrugated hose 27. The dust suction end of the dust suction pipe 29 is tilted toward the bristles 13 to improve the dust suction efficiency, and the dust suction operation is carried out simultaneously with the cleaning of the bristles 13, which can prevent the dust that has been swept from falling back onto the surface of the automobile parts. In the actual cleaning process, only cleaning may cause the dust to fly and then reattach, and the dust suction function can effectively avoid this situation, ensuring the cleanliness of the surface of the parts, thereby improving the clarity of the subsequent camera images; The cleaned parts are then transported further through the conveyor belt body 1. When the parts pass under the multi-dimensional vision camera 4, the controller 5 automatically controls the multi-dimensional vision camera 4 to take pictures of the surface of the parts and analyze them. When the surface of the parts is intact, the parts can continue to be transported. When there are cracks or defects on the surface of the parts, when the parts are transported to the position of the ejection mechanism, the controller controls the ejection mechanism to eject the unqualified parts from the surface of the conveyor belt body 1.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology, comprising a conveyor belt body (1), a fixed frame (2), a fixed support plate (3), a multi-dimensional vision camera (4) and a controller (5), characterized in that: The fixed frame (2) is mounted on the surface of the conveyor belt body (1), and the conveyor belt body (1) passes through the fixed frame (2); the fixed support plate (3) is fixedly connected to one side of the surface of the fixed frame (2), and the installation position of the fixed support plate (3) is located in the middle position of the side surface of the fixed frame (2); the multi-dimensional visual camera (4) is fixedly mounted on the bottom surface of the fixed support plate (3); and the controller (5) is fixedly connected to one side surface of the fixed frame (2); The inner surface of the fixed frame (2) is slidably connected to a lifting plate (7), and the surface of the lifting plate (7) is rotatably connected to a telescopic slide rod (8) via a bearing, the movable end of the telescopic slide rod (8) passes through the lifting plate (7) and extends to the lower side of the lifting plate (7), the bottom of the movable end of the telescopic slide rod (8) is coaxially fixedly connected to a first gear (9) arranged at the lower side of the lifting plate (7), and the bottom surface of the lifting plate (7) is symmetrically fixedly connected to a limiting track (10), each limiting track (10) ) are slidably connected to a T-shaped slide plate (11) inside, the bottom surface of each T-shaped slide plate (11) is fixedly connected to a rack (14), the bottom surface of each rack (14) is fixedly connected to a rectangular plate (12), the bottom surface of each rectangular plate (12) is fixedly connected to bristles (13), the two racks (14) are respectively located on both sides of the first gear (9), and the two racks (14) are meshed with the first gear (9), and the two racks (14) are staggered relative to the first gear (9).

2. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 1 is characterized in that: The surface of the fixed frame (2) is symmetrically fixedly connected with electric push rods (6), the output ends of the two electric push rods (6) penetrate the fixed frame (2) and extend to the inner side of the fixed frame (2), and one end of the electric push rod (6) extending to the inner side of the fixed frame (2) is fixedly connected to the lifting plate (7).

3. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 2 is characterized in that: A first rotating rod (19) is rotatably connected to one side of the surface of the fixed frame (2) via an L-shaped bracket, a driving motor (18) is fixedly mounted on the inner top surface of the fixed frame (2), the bottom end of the first rotating rod (19) passes through the fixed frame (2) and extends into the interior of the fixed frame (2), the bottom end of the first rotating rod (19) and the output end of the driving motor (18) are coaxially fixedly connected, a rotating disk (20) is fixedly connected to the top end of the first rotating rod (19), and a first hinged rod (21) is rotatably connected to the surface of the rotating disk (20) near its outer periphery via a pin, and the first hinged rod A second hinged rod (22) is rotatably connected to the surface of the fixed frame (21) at a position away from the turntable (20) via a second pin shaft, and a second tooth (24) is equidistantly fixedly connected to the surface of the second hinged rod (22). The telescopic slide rod (8) is also rotatably connected to the surface of the fixed frame (2) via a third bearing, and the top end of the telescopic slide rod (8) extends to the upper side of the fixed frame (2). A second gear (25) is coaxially fixedly sleeved on the rod body of the telescopic slide rod (8), and the second gear (25) is meshingly connected to the second tooth (24). A protective cover (30) is also fixedly connected to the surface of the fixed frame (2).

4. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 3 is characterized in that: The telescopic slide rod (8) is composed of an outer fixed tube, an inner movable rod and a limit block, the limit block is symmetrically fixedly connected to the surface of the inner movable rod, the inner movable rod is slidably connected in the outer fixed tube via the limit block, the outer fixed tube is rotationally connected to the fixed frame (2) via bearing three, and the inner movable rod is rotationally connected to the lifting plate (7) via bearing one.

5. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 4 is characterized in that: The surface of the fixed frame (2) is fixedly connected to a limit seat (23), and a reverse convex groove is provided on the surface of the limit seat (23), the second hinge rod (22) is inserted into the reverse convex groove, and the second hinge rod (22) and the limit seat (23) are slidably connected.

6. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 4 is characterized in that: A third slider (16) is symmetrically fixedly connected to the surface of the lifting plate (7), and a strip groove (31) matching the third slider (16) is symmetrically opened on the inner surface of the fixed frame (2), the third slider (16) is inserted into the strip groove (31), and the third slider (16) and the fixed frame (2) are slidably connected.

7. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 6 is characterized in that: The surface of the lifting plate (7) is symmetrically and equidistantly fixedly connected with a dust suction pipe (29); the top end of the dust suction pipe (29) is fixedly connected to a U-shaped delivery pipe (28); one side of the surface of the U-shaped delivery pipe (28) is fixedly connected to a corrugated hose (27); the surface of the fixed frame (2) is fixedly connected with a miniature vacuum cleaner body (26); the dust inlet pipe of the miniature vacuum cleaner body (26) passes through the surface of the fixed frame (2); and the dust inlet pipe of the miniature vacuum cleaner body (26) and the corrugated hose (27) are fixedly connected.

8. The automatic defect detection system for automobile parts based on multi-dimensional interpolation vision technology according to claim 7 is characterized in that: The dust suction ends of the dust suction pipes (29) on both sides are inclined toward the bristles (13).

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