Automatic production workpiece visual appearance defect detection device

Abstract

The invention discloses an automatic production workpiece visual appearance defect detection device which comprises two racks, a fixing plate is fixedly arranged at the upper end of the center position of the rack at the rear end, a second sliding groove is formed in the center position of the rack at the front end, and the second sliding groove is of a penetrating structure. A driving plate is arranged on one side of the interior of the second sliding groove, the driving plate is in sliding fit with the second sliding groove, second hydraulic telescopic devices are fixedly arranged on the sides, close to the exterior of the rack, of the driving plate and the fixing plate correspondingly, and the telescopic ends of the second hydraulic telescopic devices extend to the other sides of the driving plate and the fixing plate; a first mounting base is fixedly arranged outside the telescopic end of the second hydraulic telescopic device, a first hydraulic telescopic device is fixedly arranged at the upper end of the first mounting base, and the telescopic end of the first hydraulic telescopic device extends to the position below the first mounting base. And the problem that workpieces with defects are difficult to treat in time is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece detection, and in particular to a device for detecting visual appearance defects of automated production workpieces. Background Art

[0002] The workpiece visual appearance defect detection device is an automated detection device based on machine vision technology, which is used to identify and detect various appearance defects that may occur in the workpiece during the production process. The workpiece visual appearance defect detection device is usually composed of key parts such as image acquisition module, image processing module, image analysis module, etc. During the detection, when the light is evenly and vertically incident on the workpiece surface, if there is no defect on the surface, the direction of the reflected light will not change, and the light presented by the machine vision system will also be uniform. However, when there is a defect on the surface, the emitted light will change, and the detected image will also change accordingly.

[0003] For example, the Chinese patent "A device for detecting defects on the outer surface of a workpiece based on machine vision" with announcement number CNU includes a conveying device, which includes a conveyor belt and a first roller and a second roller respectively arranged at both ends of the conveyor belt to support the conveyor belt, and a support plate supporting the conveying device. The conveyor belt is fixed horizontally; the visual inspection device includes an industrial camera, a high-resolution optical lens and an industrial light source, which are placed directly above the inspection area. The conveyor belt is connected to the aluminum profile through the first roller and the second roller, and is supported by the support plate. The visual inspection device is fixed by a lens fixing block and connected to the camera bracket through a connecting plate. The workpiece to be tested is placed above the conveyor belt and transported from the head end of the conveyor belt through the inspection area to the end of the conveyor belt. The industrial camera, high-resolution optical lens, industrial light source and workpiece to be tested in the visual inspection device are arranged on the same central axis. The industrial light source is an LED ring light source, which is installed on the high-resolution optical lens. The industrial camera is a BASLER industrial camera. The visual inspection device can adjust the height through the lens fixing block. The industrial camera, high-resolution optical lens and industrial light source are connected to the peripheral computer.

[0004] Although the above-mentioned existing technology can realize the detection of workpieces, in actual use, on the one hand, the detection effect of workpieces is not good enough. Usually, when inspecting the workpieces, the operator is required to assist in turning the workpieces, resulting in the operator having to turn each workpiece over, thereby increasing the workload of the operator. On the other hand, it is difficult to deal with defective workpieces in a timely manner. Usually, defective workpieces are marked and then uniformly eliminated, resulting in a small number of workpieces not being found in time and mixed into normal workpieces, thereby reducing the production quality of the workpieces. Therefore, it does not meet the existing needs. In this regard, we propose an automated production workpiece visual appearance defect detection device. Summary of the invention

[0005] The object of the present invention is to provide an automated production workpiece visual appearance defect detection device to solve the problems mentioned in the above background technology that the detection effect of the workpiece is not good enough and it is difficult to deal with the defective workpiece in time.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated production workpiece visual appearance defect detection device, comprising a frame, wherein the frame is provided with two, a fixed plate is fixedly provided at the upper end of the center position of the frame at the rear end, a second slide groove is provided inside the center position of the frame at the front end, the second slide groove is a through-type structure, a driving plate is provided on one side of the second slide groove, the driving plate and the second slide groove are slidably matched, a second hydraulic telescopic device is fixedly provided on one side of the driving plate and the fixed plate close to the outside of the frame, the telescopic end of the second hydraulic telescopic device extends to the other side of the driving plate and the fixed plate, a first mounting seat is fixedly provided on the outside of the telescopic end of the second hydraulic telescopic device, a first hydraulic telescopic device is fixedly provided on the upper end of the first mounting seat, the telescopic end of the first hydraulic telescopic device extends to the bottom of the first mounting seat, a second mounting seat is fixedly provided on the lower end of the telescopic end of the first mounting seat, a clamping plate is provided on one side of the second mounting seat close to the center position of the frame, and the clamping plates are symmetrically distributed.

[0007] Preferably, a first rotating motor is fixedly disposed inside the second mounting seat, and an output shaft of the first rotating motor extends to the outside of the second mounting seat and is fixedly connected to the clamping plate.

[0008] Preferably, a second screw rod is arranged inside the second slide groove, both sides of the second screw rod are rotatably connected to the second slide groove, and the second screw rod passes through the driving plate, and a second servo motor is fixedly arranged inside the frame on one side of the second slide groove, and the output shaft of the second servo motor extends into the second slide groove and is fixedly connected to the second screw rod.

[0009] Preferably, a clamping frame is fixedly provided at the center position of the front end of the frame, a collection box is provided inside the clamping frame, and the side of the collection box is clamped and fixed to the clamping frame.

[0010] Preferably, mounting frames are fixedly provided on both sides of the upper end of the frame, the mounting frames are symmetrically arranged, a first slide groove is arranged inside the vertical plate of the mounting frame, the first slide groove is a through-type structure, a first screw rod is arranged inside the first slide groove, the upper and lower ends of the first screw rod are rotatably connected to the first slide groove, and a first servo motor is fixedly provided at the front and rear ends of the upper end of the horizontal plate of the mounting frame, and the output shaft of the first servo motor extends to the inside of the first slide groove and is fixedly connected to the first screw rod.

[0011] Preferably, a movable plate is sleeved on the outside of the first screw rod on the same side of the frame, the movable plate is limited by the sliding of the first slide groove, and the movable plate extends to the outside of the first slide groove, a mounting ear plate is fixedly provided at the lower end of the movable plate, a rotating rod is provided inside the mounting ear plate, a second rotating motor is fixedly provided on one side of the outside of the mounting ear plate, and the output shaft of the second rotating motor extends to the inside of the mounting ear plate and is fixedly connected to the rotating rod.

[0012] Preferably, a detection camera is fixedly provided at the lower end of the rotating rod, and a dust cover is fixedly provided on the outside of the lower end of the detection camera.

[0013] Preferably, a fixed seat is fixedly provided at the upper end of the frame on one side of the mounting frame, a third hydraulic telescopic device is fixedly provided on the side of the fixed seat close to the outside of the frame, the telescopic end of the third hydraulic telescopic device extends to the other side of the fixed seat, and a guide plate is fixedly provided on one side of the telescopic end of the third hydraulic telescopic device.

[0014] Preferably, a plurality of mounting rods are arranged between the frames, the front and rear ends of the mounting rods are rotatably connected to the frames, and the mounting rods are equidistantly distributed, belt rollers are fixedly arranged on the outside of the mounting rods, and a conveyor belt is sleeved on the outside of the belt rollers.

[0015] Preferably, a driving motor is fixedly arranged on one side of the exterior of the frame, and an output shaft of the driving motor extends to the interior of the frame and is fixedly connected to the mounting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention can flip the workpiece through the clamping plate and the first rotating motor. When the workpiece is flipped, the workpiece is at the center of the conveyor belt under the action of the guide plate. At this time, the second hydraulic telescopic device is synchronously turned on to extend the telescopic end of the second hydraulic telescopic device. The second mounting seat is moved to a suitable position by the extension of the telescopic end of the second hydraulic telescopic device. Then, the first hydraulic telescopic device is synchronously turned on to extend the telescopic end of the first hydraulic telescopic device. The extension of the telescopic end of the first hydraulic telescopic device drives the second mounting seat and the clamping plate to move downward until the clamping plate is moved to a suitable position. At this time, the second hydraulic telescopic device is turned on again to clamp and fix the workpiece through the second hydraulic telescopic device. At this time, the first hydraulic telescopic device is turned on to drive the second mounting seat and the clamping plate to move upward through the first hydraulic telescopic device until the workpiece is moved to a suitable height. Finally, the first rotating motor is turned on to drive the clamping plate and the workpiece to rotate through the output shaft of the first rotating motor until the workpiece is completely flipped. At this time, the flipped workpiece is placed on the conveyor belt, thereby improving the effect of workpiece detection.

[0018] (2) The present invention can process the workpiece in time through the driving plate and the collection box. When the detection camera detects a defective workpiece, the detection camera transmits a defect signal to the terminal. At this time, the operator turns on the second servo motor so that the output shaft of the second servo motor drives the second screw to rotate, and the thread on the outside of the second screw drives the driving plate to move in the second slide groove until the driving plate is moved to a mounting bracket close to one side. The operator then turns on the first hydraulic telescopic device on the fixed plate so that the telescopic end of the first hydraulic telescopic device is extended. The extension of the telescopic end of the first hydraulic telescopic device drives the second mounting seat to move downward until the second mounting seat is moved to a suitable position. At this time, the second hydraulic telescopic device is turned on so that the telescopic end of the second hydraulic telescopic device is extended. The telescopic end of the second hydraulic telescopic device pushes the second mounting seat together with the clamping plate to move, and the extension of the telescopic end of the second hydraulic telescopic device is maintained until the clamping plate contacts the defective workpiece and pushes the workpiece off the conveyor belt. At this time, the workpiece falls into the collection box, thereby improving the processing efficiency of defective workpieces.

[0019] (3) The present invention can adjust the position of the detection camera through the movable plate and the rotating rod. When the position of the detection camera is adjusted according to the specific workpiece, the first servo motor is first turned on, so that the output shaft of the first servo motor drives the first screw rod to rotate, and the movable plate is driven to move in the first slide groove through the thread on the outside of the first screw rod, and the mounting ear plate arranged at the lower end of the movable plate is moved together until the detection camera is moved to a suitable position. At this time, the second rotating motor is turned on again, so that the output shaft of the second rotating motor drives the rotating rod to rotate between the mounting ear plates, and the detection camera is rotated to a suitable angle through the rotating rod. At this time, the light source at the lower end of the dust cover is turned on, so that when the workpiece passes through the detection camera, a clear and appropriately sized workpiece image is displayed on the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an internal overall stereogram of the present invention;

[0021] Figure 2 It is a front view of the internal structure of the present invention;

[0022] Figure 3 It is a side view of the internal structure of the turning mechanism of the present invention;

[0023] Figure 4 It is a side view of the internal structure of the detection mechanism of the present invention;

[0024] Figure 5 It is a front view of the internal structure of the driving mechanism of the present invention.

[0025] In the figure: 1. frame; 2. conveyor belt; 3. mounting frame; 4. first slide; 5. first screw; 6. first servo motor; 7. moving plate; 8. mounting ear plate; 9. rotating rod; 10. detection camera; 11. dust cover; 12. second slide; 13. first hydraulic telescopic device; 14. drive plate; 15. fixed plate; 16. second hydraulic telescopic device; 17. first mounting seat; 18. second mounting seat; 19. clamping plate; 20. fixed seat; 21. third hydraulic telescopic device; 22. guide plate; 23. drive motor; 24. clamping frame; 25. collection box; 26. mounting rod; 27. belt roller; 28. first rotating motor; 29. ​​second screw; 30. second rotating motor; 31. second servo motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] See also Figure 1-5 An embodiment of the present invention is as follows: an automated production workpiece visual appearance defect detection device comprises a frame 1, wherein the frame 1 is provided with two frames, a fixed seat 20 is fixedly provided at the upper end of the frame 1 located on one side of the mounting frame 3, a third hydraulic telescopic device 21 is fixedly provided on the side of the fixed seat 20 close to the outside of the frame 1, the telescopic end of the third hydraulic telescopic device 21 extends to the other side of the fixed seat 20, a guide plate 22 is fixedly provided on one side of the telescopic end of the third hydraulic telescopic device 21, a plurality of mounting rods 26 are provided between the frames 1, the front and rear ends of the mounting rods 26 are both rotatably connected to the frame 1, and the mounting rods 26 are equidistantly distributed, belt rollers 27 are fixedly provided on the outside of the mounting rods 26, a conveyor belt 2 is sleeved on the outside of the belt rollers 27, a drive motor 23 is fixedly provided on one side of the outside of the frame 1, and the output shaft of the drive motor 23 extends to the inside of the frame 1 and is fixedly connected to the mounting rod 26.

[0028] See also Figure 1 , Figure 2 and Figure 3A fixed plate 15 is fixedly provided at the upper end of the center position of the rear end frame 1, a second slide groove 12 is provided inside the center position of the front end frame 1, and the second slide groove 12 is a through structure. A driving plate 14 is provided on one side inside the second slide groove 12, and the driving plate 14 is slidably matched with the second slide groove 12. A second hydraulic telescopic device 16 is fixedly provided on one side of the driving plate 14 and the fixed plate 15 close to the outside of the frame 1, and the telescopic end of the second hydraulic telescopic device 16 extends to the other side of the driving plate 14 and the fixed plate 15, and a first mounting seat 17 is fixedly provided on the outside of the telescopic end of the second hydraulic telescopic device 16. A first hydraulic telescopic device 13 is fixedly provided on the upper end of a mounting seat 17, and the telescopic end of the first hydraulic telescopic device 13 extends to the bottom of the first mounting seat 17. A second mounting seat 18 is fixedly provided on the lower end of the telescopic end of the first mounting seat 17. A clamping plate 19 is provided on one side of the second mounting seat 18 close to the center position of the frame 1, and the clamping plates 19 are symmetrically distributed. A first rotating motor 28 is fixedly provided inside the second mounting seat 18, and the output shaft of the first rotating motor 28 extends to the outside of the second mounting seat 18 and is fixedly connected to the clamping plate 19, so as to facilitate flipping of the workpiece through the clamping plate 19.

[0029] See also Figure 1 , Figure 3 and Figure 5 A second screw rod 29 is arranged inside the second slide groove 12, and both sides of the second screw rod 29 are rotatably connected to the second slide groove 12, and the second screw rod 29 passes through the driving plate 14, and a second servo motor 31 is fixedly arranged inside the frame 1 on one side of the second slide groove 12, and the output shaft of the second servo motor 31 extends to the inside of the second slide groove 12 and is fixedly connected to the second screw rod 29, and a clamping frame 24 is fixedly arranged at the center position of the front end of the front end frame 1, and a collecting box 25 is arranged inside the clamping frame 24, and the side of the collecting box 25 is clamped and fixed to the clamping frame 24, so as to facilitate the collection of defective workpieces through the collecting box 25.

[0030] See also Figure 1 , Figure 2 and Figure 4, mounting frames 3 are fixedly arranged on both sides of the upper end of the frame 1, and the mounting frames 3 are symmetrically arranged. A first slide groove 4 is arranged inside the vertical plate of the mounting frame 3, and the first slide groove 4 is a through-type structure. A first screw rod 5 is arranged inside the first slide groove 4, and the upper and lower ends of the first screw rod 5 are rotatably connected with the first slide groove 4. The front and rear ends of the upper ends of the horizontal plates of the mounting frame 3 are fixedly arranged with a first servo motor 6, and the output shaft of the first servo motor 6 extends to the inside of the first slide groove 4 and is fixedly connected with the first screw rod 5. The outside of the first screw rod 5 on the same side of the frame 1 is sleeved with a moving plate 7, and the moving plate 7 is limited by the sliding of the first slide groove 4 , and the movable plate 7 extends to the outside of the first slide groove 4, a mounting ear plate 8 is fixedly provided at the lower end of the movable plate 7, a rotating rod 9 is arranged inside the mounting ear plate 8, a second rotating motor 30 is fixedly provided on one side of the outside of the mounting ear plate 8, the output shaft of the second rotating motor 30 extends to the inside of the mounting ear plate 8 and is fixedly connected to the rotating rod 9, a detection camera 10 is fixedly provided at the lower end of the rotating rod 9, and a dust cover 11 is fixedly provided on the outside of the lower end of the detection camera 10, wherein the detection camera 10 adopts a BASLER industrial camera, which is convenient for adjusting the position of the detection camera 10 through the movable plate 7 and the second rotating motor 30.

[0031] Working principle: When in use, when the workpiece is turned over, the workpiece is in the center position of the conveyor belt 2 under the action of the guide plate 22, and the second hydraulic telescopic device 16 is synchronously opened to extend the telescopic end of the second hydraulic telescopic device 16, and the second mounting seat 18 is moved to a suitable position by the extension of the telescopic end of the second hydraulic telescopic device 16, and then the first hydraulic telescopic device 13 is synchronously opened to extend the telescopic end of the first hydraulic telescopic device 13, and the extension of the telescopic end of the first hydraulic telescopic device 13 drives the second mounting seat 18 and the clamping plate 19 to move downward until the clamping plate 19 is moved to a suitable position, and the second hydraulic telescopic device 16 is opened again at this time, and the clamping plate 19 is clamped by the second hydraulic telescopic device 16. The holding plate 19 clamps and fixes the workpiece, and the first hydraulic telescopic device 13 is turned on at this time, and the second mounting seat 18 and the clamping plate 19 are driven to move upward by the first hydraulic telescopic device 13 until the workpiece is moved to a suitable height, and finally the first rotating motor 28 is turned on, and the clamping plate 19 and the workpiece are driven to rotate by the output shaft of the first rotating motor 28 until the workpiece is completely flipped, and the flipped workpiece is placed on the conveyor belt 2 at this time. When the inspection camera 10 detects a defective workpiece, the inspection camera 10 transmits a defect signal to the terminal, and the operator turns on the second servo motor 31 at this time, so that the output shaft of the second servo motor 31 drives the second screw rod 29 to rotate, and the thread on the outside of the second screw rod 29 The driving plate 14 is driven to move in the second slide groove 12 until the driving plate 14 is moved to the mounting bracket 3 close to one side, and then the operator turns on the first hydraulic telescopic device 13 on the fixed plate 15 to extend the telescopic end of the first hydraulic telescopic device 13, and the second mounting seat 18 is driven to move downward by the extension of the telescopic end of the first hydraulic telescopic device 13, until the second mounting seat 18 is moved to a suitable position, and then the second hydraulic telescopic device 16 is turned on to extend the telescopic end of the second hydraulic telescopic device 16, and the second mounting seat 18 is pushed to move together with the clamping plate 19 by the telescopic end of the second hydraulic telescopic device 16, and the extension of the telescopic end of the second hydraulic telescopic device 16 is maintained until the clamping plate 19 is in contact with the gap. The workpiece is trapped and contacts and pushed off the conveyor belt 2. At this time, the workpiece falls into the collection box 25. When the position of the detection camera 10 is adjusted according to the specific workpiece, the first servo motor 6 is first turned on, so that the output shaft of the first servo motor 6 drives the first screw rod 5 to rotate, and the movable plate 7 is driven to move in the first slide groove 4 through the thread on the outside of the first screw rod 5. At the same time, the mounting ear plate 8 arranged at the lower end of the movable plate 7 moves together until the detection camera 10 is moved to a suitable position. At this time, the second rotating motor 30 is turned on again, so that the output shaft of the second rotating motor 30 drives the rotating rod 9 to rotate between the mounting ear plates 8, and the detection camera 10 is rotated to a suitable angle through the rotating rod 9. At this time, the light source at the lower end of the dust cover 11 is turned on.

[0032] 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.

Claims

1. An automated production workpiece visual appearance defect detection device, comprising a frame (1), wherein two frames (1) are provided, and wherein: A fixed plate (15) is fixedly arranged at the upper end of the center position of the rear end frame (1), a second slide groove (12) is arranged inside the center position of the front end frame (1), the second slide groove (12) is a through-type structure, a driving plate (14) is arranged on one side inside the second slide groove (12), the driving plate (14) and the second slide groove (12) are slidably matched, a second hydraulic telescopic device (16) is fixedly arranged on one side of the driving plate (14) and the fixed plate (15) close to the outside of the frame (1), and the telescopic end of the second hydraulic telescopic device (16) extends to the driving plate (14) , on the other side of the fixed plate (15), a first mounting seat (17) is fixedly provided on the outside of the telescopic end of the second hydraulic telescopic device (16), a first hydraulic telescopic device (13) is fixedly provided on the upper end of the first mounting seat (17), the telescopic end of the first hydraulic telescopic device (13) extends to the bottom of the first mounting seat (17), a second mounting seat (18) is fixedly provided on the lower end of the telescopic end of the first mounting seat (17), a clamping plate (19) is provided on one side of the second mounting seat (18) close to the center position of the frame (1), and the clamping plates (19) are symmetrically distributed.

2. The device for detecting visual appearance defects of an automated production workpiece according to claim 1, characterized in that: A first rotating motor (28) is fixedly arranged inside the second mounting seat (18), and an output shaft of the first rotating motor (28) extends to the outside of the second mounting seat (18) and is fixedly connected to the clamping plate (19).

3. The device for detecting visual appearance defects of an automated production workpiece according to claim 2, characterized in that: A second screw rod (29) is arranged inside the second slide groove (12), both sides of the second screw rod (29) are rotatably connected to the second slide groove (12), and the second screw rod (29) passes through the driving plate (14); a second servo motor (31) is fixedly arranged inside the frame (1) at one side of the second slide groove (12), and an output shaft of the second servo motor (31) extends into the second slide groove (12) and is fixedly connected to the second screw rod (29).

4. The device for detecting visual appearance defects of an automated production workpiece according to claim 3, characterized in that: A clamping frame (24) is fixedly arranged at the center position of the front end of the frame (1), a collection box (25) is arranged inside the clamping frame (24), and the side of the collection box (25) is clamped and fixed to the clamping frame (24).

5. The device for detecting visual appearance defects of an automated production workpiece according to claim 4, characterized in that: A mounting frame (3) is fixedly arranged on both sides of the upper end of the frame (1), and the mounting frame (3) is symmetrically arranged. A first slide groove (4) is arranged inside the vertical plate of the mounting frame (3), and the first slide groove (4) is a through-type structure. A first screw rod (5) is arranged inside the first slide groove (4), and the upper and lower ends of the first screw rod (5) are rotatably connected to the first slide groove (4). A first servo motor (6) is fixedly arranged at the front and rear ends of the upper end of the horizontal plate of the mounting frame (3), and the output shaft of the first servo motor (6) extends to the inside of the first slide groove (4) and is fixedly connected to the first screw rod (5).

6. The device for detecting visual appearance defects of an automated production workpiece according to claim 5, characterized in that: A movable plate (7) is sleeved on the outside of the first screw rod (5) located on the same side of the frame (1), the movable plate (7) and the first slide groove (4) are slidably limited, and the movable plate (7) extends to the outside of the first slide groove (4), a mounting ear plate (8) is fixedly arranged at the lower end of the movable plate (7), a rotating rod (9) is arranged inside the mounting ear plate (8), and a second rotating motor (30) is fixedly arranged on one side of the outside of the mounting ear plate (8), and the output shaft of the second rotating motor (30) extends to the inside of the mounting ear plate (8) and is fixedly connected to the rotating rod (9).

7. The device for detecting visual appearance defects of an automated production workpiece according to claim 6, characterized in that: A detection camera (10) is fixedly arranged at the lower end of the rotating rod (9), and a dust cover (11) is fixedly arranged outside the lower end of the detection camera (10).

8. The device for detecting visual appearance defects of an automated production workpiece according to claim 7, characterized in that: A fixing seat (20) is fixedly provided at the upper end of the frame (1) on one side of the mounting frame (3); a third hydraulic telescopic device (21) is fixedly provided on one side of the fixing seat (20) close to the outside of the frame (1); the telescopic end of the third hydraulic telescopic device (21) extends to the other side of the fixing seat (20); and a guide plate (22) is fixedly provided on one side of the telescopic end of the third hydraulic telescopic device (21).

9. The device for detecting visual appearance defects of an automated production workpiece according to claim 8, characterized in that: A plurality of mounting rods (26) are arranged between the frames (1), the front and rear ends of the mounting rods (26) are rotatably connected to the frames (1), and the mounting rods (26) are equidistantly distributed. Belt rollers (27) are fixedly arranged on the outside of the mounting rods (26), and the conveyor belt (2) is sleeved on the outside of the belt rollers (27).

10. The device for detecting visual appearance defects of an automated production workpiece according to claim 9, characterized in that: A drive motor (23) is fixedly arranged on one side of the exterior of the frame (1), and an output shaft of the drive motor (23) extends into the interior of the frame (1) and is fixedly connected to a mounting rod (26).

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