Mechanical part surface defect visual inspection system

Abstract

The utility model discloses a visual inspection system for surface defects of mechanical parts. The visual inspection system comprises a U-shaped frame, a cross beam rod, a rotating table and a driving table, according to the visual inspection system for the surface defects of the mechanical parts, a U-shaped frame matched with a frame is movably installed on the inner side of the frame, first visual inspection equipment is movably installed on the top of the frame, the bottom of the front side and the top of the rear side in the U-shaped frame are each fixedly connected with a cross beam rod, and a driving table is driven through a driving mechanism; the driving table can drive the rotating table through the transmission connecting rod, the rotating table drives a to-be-detected part to rotate through the clamping mechanism, annular four-side detection is carried out through cooperation with the first visual detection equipment above the rotating table, end face detection can be carried out through the second visual detection equipment, and meanwhile the supporting round frame is driven to move through the first electric telescopic rod; therefore, the rotary table performs transposition clamping, and the original clamping position is exposed, so that comprehensive surface defect detection is realized, and missing detection points are reduced.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically a visual inspection system for surface defects of mechanical parts. Background Technology

[0002] Most mechanical equipment is assembled from various mechanical parts, which require high dimensional accuracy and quality. After the mechanical parts are manufactured, they need to be inspected to ensure their quality and dimensional accuracy, preventing substandard parts from entering the market and affecting the quality of the assembled mechanical equipment. Visual inspection is the main method for detecting surface defects in mechanical parts.

[0003] A search revealed a patent document with publication number CN222232354U, which discloses a surface defect detection device for engineering machinery parts. The device includes a frame, an adjustment mechanism, and a transmission mechanism. A vision inspection device is installed at the upper inner end of the frame, and the adjustment mechanism is located on top of the vision inspection device. A U-shaped frame is fixedly connected to the lower inner side of the frame, and a base plate is fixedly connected to the bottom of the U-shaped frame. A rotary motor is fixedly installed on one side of the U-shaped frame. This invention, through its structural design of the frame, fixing plate, fixing groove, rotary motor, U-shaped frame, vision inspection device, and adjustment mechanism, enables rapid detection of both sides of the parts to be inspected, thereby improving detection efficiency. It solves the problem that after one side of a part has been inspected, it is necessary to manually flip the part and then fix it again, which is cumbersome and reduces detection efficiency.

[0004] Based on the search of the above information, the existing technology can perform rotational inspection on the parts to be inspected. However, the clamping end face may be obscured during inspection, resulting in missed inspections of the end face. Therefore, a new visual inspection system for surface defects of mechanical parts is proposed to optimize the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a visual inspection system for surface defects of mechanical parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A visual inspection system for surface defects of mechanical parts includes a frame. A U-shaped frame adapted to the frame is movably mounted on its inner side. A first visual inspection device is movably mounted on the top of the frame. A crossbeam is fixedly connected to the bottom front side and the top rear side of the U-shaped frame. Two supporting round frames are slidably connected to the crossbeam. Each supporting round frame has a connecting lug corresponding to the crossbeam for sliding through. A rotating platform adapted to the supporting round frame is rotatably connected to its inner side. A second visual inspection device is fixedly connected to the center of the front of the rotating platform. A clamping mechanism is mounted on the front of each rotating platform, with the two clamping mechanisms offset by 90°. A drive platform is rotatably mounted on the back of each U-shaped frame corresponding to the rotating platform. A transmission rod is circumferentially fixedly connected to the back of each rotating platform, sliding through the corresponding drive platform. A circular hole is provided on the drive platform for the transmission rod to slide through. A drive mechanism is provided on the outer side of the drive platform. A first electric telescopic rod is fixedly connected to each supporting round frame on both sides of the U-shaped frame, with the telescopic end of the first electric telescopic rod fixedly connected to the supporting round frame.

[0008] As a further embodiment of this utility model: the top and bottom of the U-shaped frame are symmetrically and fixedly connected with slide rails, and the outer sides of the slide rails are slidably connected with slide grooves. The slide grooves are fixedly connected to the inner side of the frame through upright plates. A second electric telescopic rod is fixedly connected to both the frame and the bottom upright plates. The telescopic end of the second electric telescopic rod is fixedly connected to the U-shaped frame through a connecting block.

[0009] As a further improvement of this utility model: the front side of the frame is symmetrically provided with boxes and doors, one side of which is hinged to the frame, and a handle is installed on the box and door.

[0010] As a further embodiment of this utility model: the first visual inspection device is fixedly installed on a movable base, and a first guide rod is symmetrically and slidably connected through the movable base. A circular hole is provided on the movable base for the first guide rod to pass through and slide. The first guide rod is fixedly connected to the top inner side of the frame through a vertical plate. A drive screw is threadedly connected through the middle of the movable base. A threaded hole is provided on the movable base for the drive screw to be threadedly connected. The drive screw is rotatably installed on the vertical plate. A first motor is fixedly installed on one of the vertical plates corresponding to the end of the drive screw. The output end of the first motor is fixedly connected to the drive screw.

[0011] As a further embodiment of this utility model: the clamping mechanism includes symmetrically arranged clamps, and end plates fixedly connected to the rotary table are symmetrically arranged on the outer side of the clamps. Second guide rods are symmetrically fixedly connected to the end plates. The second guide rods slide through the two clamps. The clamps are provided with circular holes for the second guide rods to pass through and slide. A bidirectional threaded rod is also rotatably installed on the end plate. The bidirectional threaded rod is threaded through the clamps. The clamps are respectively threaded to the positive and negative threads of the bidirectional threaded rod. A second motor is fixedly installed on one end plate corresponding to the end of the bidirectional threaded rod. The output end of the second motor is fixedly connected to the bidirectional threaded rod.

[0012] As a further embodiment of this utility model: the driving mechanism includes a third motor and a driving shaft. The driving shaft is rotatably connected to the inner side of the U-shaped frame. The third motor is fixedly connected to the outer wall of the U-shaped frame and corresponds to the end of the driving shaft. The output end of the third motor is fixedly connected to the driving shaft. A first gear is fixedly connected to each corresponding driving platform on the driving shaft. A second gear is fixedly connected to the driving platform. The second gear meshes with the first gear for transmission.

[0013] As a further aspect of this utility model: a controller is fixedly installed on the outer wall of the frame. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and circuit connection in detail. The controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the controller is a conventional known device.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model drives a drive platform through a drive mechanism. The drive platform can drive a rotary table through a transmission linkage. The rotary table drives the parts to be inspected to rotate through a clamping mechanism. It works in conjunction with the first vision inspection device above to perform four-sided annular inspection and end face inspection through the second vision inspection device. At the same time, the first electric telescopic rod drives the support frame to move, thereby changing the position of the rotary table and exposing the original clamping position, thus achieving comprehensive surface defect inspection and reducing missed inspection points.

[0016] 2. This utility model uses a second electric telescopic rod to drive the U-shaped frame to move through the cooperation of the slide rail and the slide groove, so that the U-shaped frame can extend out from inside the frame, thus facilitating the placement of the parts to be tested.

[0017] 3. The first visual inspection device of this utility model is mounted on a movable base and driven by a first motor, which in turn drives the device to move laterally via a drive screw and a first guide rod, making it convenient to inspect longer parts to be inspected.

[0018] 4. This utility model uses a second motor to drive the bidirectional threaded rod to rotate, and under the guidance of the second guide rod, the two clamps can move synchronously, thereby achieving the clamping and fixing of the parts to be tested.

[0019] 5. This utility model uses a third motor to drive the drive shaft to rotate, which in turn drives the second gear through the first gear, thereby driving the two drive tables to rotate. This allows the two clamping mechanisms to rotate synchronously, maintaining a 90° misalignment, thus facilitating the formation of a face-changing clamping effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a visual inspection system for surface defects of mechanical parts.

[0021] Figure 2 This is an open view of a visual inspection system for surface defects in mechanical parts.

[0022] Figure 3 This is a top view of a frame in a visual inspection system for surface defects of mechanical parts.

[0023] Figure 4 This is a top view of a U-shaped frame in a visual inspection system for surface defects of mechanical parts.

[0024] Figure 5 This is a top-view view of a U-shaped frame in a visual inspection system for surface defects of mechanical parts.

[0025] Figure 6 This is a diagram of a rotary table in a visual inspection system for surface defects of mechanical parts.

[0026] In the diagram: 1. Frame; 2. U-shaped frame; 3. First vision inspection device; 4. Crossbeam; 5. Supporting round frame; 6. Rotary table; 7. Second vision inspection device; 8. Controller; 9. Drive table; 10. Transmission link; 11. First electric telescopic rod; 12. Slide rail; 13. Slide groove; 14. Vertical plate; 15. Second electric telescopic rod; 16. Box door; 17. Moving seat; 18. First guide rod; 19. Drive screw; 20. First motor; 21. Clamp; 22. End plate; 23. Bidirectional threaded rod; 24. Second motor; 25. Third motor; 26. Drive shaft; 27. First gear; 28. Second gear; 29. ​​Second guide rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 In this embodiment of the present invention, a visual inspection system for surface defects of mechanical parts includes a frame 1. A U-shaped frame 2 adapted to the frame 1 is movably installed on the inner side of the frame 1. A first visual inspection device 3 is movably installed on the top of the frame 1. A crossbeam 4 is fixedly connected to the bottom front side and the top rear side of the U-shaped frame 2, respectively. Two supporting round frames 5 are slidably connected to the crossbeam 4. The supporting round frames 5 are provided with connecting ears corresponding to the crossbeam 4 for the crossbeam 4 to slide through. A rotating platform 6 adapted to the supporting round frames 5 is rotatably connected to the inner side of the supporting round frames 5. A second [device / device] is fixedly connected to the center of the front of the rotating platform 6. The visual inspection device 7 and the rotating stage 6 are equipped with clamping mechanisms on their front sides. The two clamping mechanisms are offset by 90°. The U-shaped frame 2 is rotatably mounted on the back side of the rotating stage 6. The back side of the rotating stage 6 is circumferentially connected with a transmission rod 10. The transmission rod 10 slides through the corresponding driving stage 9. The driving stage 9 has a circular hole for the transmission rod 10 to slide through. The driving stage 9 is equipped with a driving mechanism on its outer side. The U-shaped frame 2 is fixedly connected to a first electric telescopic rod 11 on each side of the supporting round frame 5. The telescopic end of the first electric telescopic rod 11 is fixedly connected to the supporting round frame 5.

[0029] The drive mechanism drives the drive stage 9, which in turn drives the rotary stage 6 via the transmission link 10. The rotary stage 6 rotates the part to be inspected via the clamping mechanism, and performs ring-shaped four-sided inspection in conjunction with the first vision inspection device 3 above. It can also perform end-face inspection via the second vision inspection device 7. At the same time, the first electric telescopic rod 11 drives the support frame 5 to move, thereby causing the rotary stage 6 to change its clamping position, exposing the original clamping position, thus achieving comprehensive surface defect inspection and reducing missed inspection points.

[0030] The top and bottom of the U-shaped frame 2 are symmetrically fixedly connected with slide rails 12, and the outer side of the slide rails 12 is slidably connected with slide grooves 13. The slide grooves 13 are fixedly connected to the inner side of the frame 1 through the upright plate 14. A second electric telescopic rod 15 is fixedly connected to both the frame 1 and the bottom upright plate 14. The telescopic end of the second electric telescopic rod 15 is fixedly connected to the U-shaped frame 2 through a connecting block.

[0031] The front side of the frame 1 is symmetrically provided with a box door 16. One side of the box door 16 is hinged to the frame 1, and a handle is installed on the box door 16.

[0032] The U-shaped frame 2 is driven by the second electric telescopic rod 15 to move through the cooperation of the slide rail 12 and the slide groove 13, so that the U-shaped frame 2 can extend out from the inside of the frame 1, thus facilitating the placement of the parts to be tested.

[0033] The first visual inspection device 3 is fixedly installed on the movable base 17. The movable base 17 is symmetrically and slidably connected with the first guide rod 18. The movable base 17 has a circular hole for the first guide rod 18 to pass through and slide. The first guide rod 18 is fixedly connected to the top inner side of the frame 1 through the upright plate 14. The middle thread of the movable base 17 is threadedly connected with the drive screw 19. The movable base 17 has a threaded hole for the drive screw 19 to be threadedly connected. The drive screw 19 is rotatably installed with the upright plate 14. A first motor 20 is fixedly installed on one of the upright plates 14 corresponding to the end of the drive screw 19. The output end of the first motor 20 is fixedly connected to the drive screw 19.

[0034] The first visual inspection device 3 is mounted on the movable base 17 and driven by the first motor 20. The first motor 20 drives the device to move by means of the drive screw 19 and the first guide rod 18, which allows the first visual inspection device 3 to move laterally, making it convenient to inspect longer parts.

[0035] The clamping mechanism includes symmetrically arranged chucks 21. Symmetrically arranged on the outer side of each chuck 21 are end plates 22 fixedly connected to the rotary table 6. Symmetrically fixedly connected to the end plates 22 are second guide rods 29. The second guide rods 29 slide through both chucks 21. Each chuck 21 has a circular hole for the second guide rod 29 to pass through and slide. A bidirectional threaded rod 23 is also rotatably mounted on the end plates 22. The bidirectional threaded rod 23 threads through the chucks 21. The chucks 21 are threaded to the positive and negative threads of the bidirectional threaded rod 23. A second motor 24 is fixedly mounted on one end plate 22 corresponding to the end of the bidirectional threaded rod 23. The output end of the second motor 24 is fixedly connected to the bidirectional threaded rod 23.

[0036] The second motor 24 drives the bidirectional threaded rod 23 to rotate, and under the guidance of the second guide rod 29, the two chucks 21 can move synchronously, thereby achieving the clamping and fixing of the parts to be tested.

[0037] The drive mechanism includes a third motor 25 and a drive shaft 26. The drive shaft 26 is rotatably connected to the inner side of the U-shaped frame 2. The third motor 25 is fixedly connected to the outer wall of the U-shaped frame 2 and corresponds to the end of the drive shaft 26. The output end of the third motor 25 is fixedly connected to the drive shaft 26. A first gear 27 is fixedly connected to the drive shaft 26 corresponding to the drive platform 9. A second gear 28 is fixedly connected to the drive platform 9. The second gear 28 meshes with the first gear 27 for transmission.

[0038] The third motor 25 drives the drive shaft 26 to rotate, which in turn drives the second gear 28 through the first gear 27, thereby driving the two drive tables 9 to rotate. This allows the two clamping mechanisms to rotate synchronously, maintaining a 90° misalignment, thus facilitating the formation of a face-changing clamping effect.

[0039] A controller 8 is fixedly installed on the outer wall of frame 1. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through controller 8. The control circuit of controller 8 can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The controller 8 mentioned in the specification can play a control role for the electrical components mentioned in this article. Moreover, the controller 8 is a conventional known device. The visual inspection device can be a CCD camera. The slide rail 12, slide groove 13, and second electric telescopic rod 15 together constitute the feeding auxiliary module; the crossbeam rod 5, support frame 5, and first electric telescopic rod 11 together constitute the moving module; the rotary table 6, drive table 9, third motor 25, drive shaft 26, first gear 27, and second gear 28 together constitute the rotating module; the rotary table 6, second guide rod 29, chuck 21, bidirectional threaded rod 23, and second motor 24 together constitute the clamping module; the moving seat 17, first guide rod 18, drive screw 19, first motor 20, first vision inspection device 3, and second vision inspection device 7 together constitute the inspection module; the controller 8 performs visual inspection through the inspection module to determine surface defects and mark them in images. The feeding auxiliary module, moving module, rotating module, clamping module, and inspection module together constitute the surface defect visual inspection system.

[0040] The working principle of this utility model is as follows:

[0041] In use, the door 16 is opened, and the U-shaped frame 2 is moved by the second electric telescopic rod 15 through the cooperation of the slide rail 12 and the slide groove 13, so that the U-shaped frame 2 can extend out from the frame 1, thus facilitating the placement of the parts to be inspected. The workpiece is placed in the clamping mechanism of the rotating table 6 on one side, and the bidirectional threaded rod 23 is rotated by the second motor 24. Under the guidance of the second guide rod 29, the two chucks 21 can move synchronously, thereby achieving clamping and fixing of the parts to be inspected. At this time, the drive shaft 26 is rotated by the third motor 25, which in turn drives the second gear 28 through the first gear 27, thereby driving the two drive tables 9 to rotate, so that the two clamping mechanisms can rotate synchronously, maintaining a 90° misalignment. The drive tables 9 can be driven to rotate 180° forward and backward. At this time, the first visual inspection device The first visual inspection device 3 and the second visual inspection device 7 can perform visual inspection on the workpiece to be inspected. Furthermore, the first electric telescopic rod 11 can drive the support round frame 5 to move along the crossbeam rod 4, so that the two rotating tables 6 are brought closer together, and the workpiece to be inspected is sent into the clamping mechanism on the other side. At this time, the two clamping mechanisms switch positions and are driven by the first motor 20, which in turn drives the first guide rod 18 to move, so that the first visual inspection device 3 moves laterally. Visual inspection can continue to be performed by the first visual inspection device 3 and the second visual inspection device 7, thereby achieving comprehensive inspection.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mechanical parts surface defect visual inspection system comprising a frame (1), characterized in that: A U-shaped frame (2) adapted to it is movably installed on the inner side of the frame (1), and a first visual inspection device (3) is movably installed on the top of the frame (1). A crossbeam (4) is fixedly connected to the bottom front side and the top rear side of the U-shaped frame (2). Two supporting round frames (5) are slidably connected on the crossbeam (4). A rotating platform (6) adapted to it is rotatably connected to the inner side of the supporting round frame (5). A second visual inspection device (7) is fixedly connected to the center of the front of the rotating platform (6). A second visual inspection device (7) is installed on the front of the rotating platform (6). There is a clamping mechanism, and the two clamping mechanisms are offset by 90°. The back of the U-shaped frame (2) and the rotating table (6) are rotatably mounted with a drive platform (9). The back of the rotating table (6) is circumferentially fixedly connected with a transmission link (10). The transmission link (10) slides through the corresponding drive platform (9). The drive platform (9) is provided with a drive mechanism on the outside. The two sides of the U-shaped frame (2) are fixedly connected with a first electric telescopic rod (11) corresponding to the support round frame (5). The telescopic end of the first electric telescopic rod (11) is fixedly connected to the support round frame (5).

2. The mechanical component surface defect visual inspection system according to claim 1, characterized in that: The top and bottom of the U-shaped frame (2) are symmetrically fixedly connected with slide rails (12), and the outer side of the slide rails (12) is slidably connected with slide grooves (13). The slide grooves (13) are fixedly connected to the inner side of the frame (1) through the upright plate (14). A second electric telescopic rod (15) is fixedly connected to both the frame (1) and the bottom upright plate (14). The telescopic end of the second electric telescopic rod (15) is fixedly connected to the U-shaped frame (2) through a connecting block.

3. The mechanical component surface defect visual inspection system of claim 1, wherein: The frame (1) is symmetrically provided with a box door (16) on the front side. One side of the box door (16) is hinged to the frame (1), and a handle is installed on the box door (16).

4. The visual inspection system for surface defects of mechanical parts according to claim 1, characterized in that: The first visual inspection device (3) is fixedly installed on the movable seat (17). The movable seat (17) is symmetrically slidably connected to the first guide rod (18). The first guide rod (18) is fixedly connected to the top inner side of the frame (1) through the upright plate (14). The middle thread of the movable seat (17) is connected to the drive screw (19). The drive screw (19) is rotatably installed with the upright plate (14). The end of one of the upright plates (14) is fixedly installed with the first motor (20) corresponding to the end of the drive screw (19). The output end of the first motor (20) is fixedly connected to the drive screw (19).

5. The mechanical parts surface defect visual inspection system according to claim 1, characterized in that: The clamping mechanism includes symmetrically arranged chucks (21). The outer side of the chucks (21) is symmetrically provided with end plates (22) that are fixedly connected to the rotary table (6). The end plates (22) are symmetrically fixedly connected with second guide rods (29). The second guide rods (29) slide through the two chucks (21). The end plates (22) are also rotatably mounted with bidirectional threaded rods (23). The bidirectional threaded rods (23) are threaded through the chucks (21). The chucks (21) are respectively threaded to the positive and negative threads of the bidirectional threaded rods (23). A second motor (24) is fixedly installed on one end plate (22) corresponding to the end of the bidirectional threaded rod (23). The output end of the second motor (24) is fixedly connected to the bidirectional threaded rod (23).

6. The mechanical component surface defect visual inspection system according to claim 1, characterized in that: The drive mechanism includes a third motor (25) and a drive shaft (26). The drive shaft (26) is rotatably connected to the inner side of the U-shaped frame (2). The third motor (25) is fixedly connected to the outer wall of the U-shaped frame (2) and corresponds to the end of the drive shaft (26). The output end of the third motor (25) is fixedly connected to the drive shaft (26). A first gear (27) is fixedly connected to the drive shaft (26) and a second gear (28) is fixedly connected to the drive platform (9). The second gear (28) meshes with the first gear (27) for transmission.

7. The mechanical component surface defect visual inspection system of claim 1, wherein: The controller (8) is fixedly installed on the outer wall of the frame (1).

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