Workpiece visual inspection device

Abstract

The utility model relates to a workpiece visual inspection device, which comprises a frame body, the imaging assembly is arranged on the frame body and is in sliding connection with the frame body through a telescopic mechanism; the clamping assembly is arranged on the frame body, the clamping assembly comprises rotating discs, power clamping jaws, a first driving piece and a second driving piece, the rotating discs are rotationally connected with the frame body so that the two rotating discs in the same pair can rotate synchronously, and the first driving piece is in linkage with the rotating discs to drive the rotating discs to rotate; the number of the power clamping jaws is at least one pair, the two power clamping jaws in the same pair are oppositely arranged on the outer circumferential faces of the two rotating discs in the same pair, the power clamping jaws are rotationally connected with the rotating discs, the rotating direction of the power clamping jaws is the same as the rotating direction of the rotating discs, and each power clamping jaw is provided with a second driving part. And the second driving piece is linked with the power clamping jaw to drive the power clamping jaw to rotate. The device can drive the workpiece to rotate so as to adjust the imaging angle, so that the manual labor amount is reduced, and the workpiece visual inspection efficiency and the automation degree are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece visual detection, in particular to a workpiece visual detection device. Background Art

[0002] With the development of visual inspection technology, applying visual inspection technology to workpiece surface quality inspection can reduce the impact of human subjective inspection and improve the consistency of workpiece surface quality.

[0003] For example, Chinese patent CN213337372U discloses a workpiece visual inspection device, which includes: a workbench, a visual inspection tool, a workpiece positioning fixture and a tool support; the workpiece positioning fixture includes: a fixture body fixed on the workbench, the tool support is installed on the workbench and is located on one side of the fixture body, the tool support includes: a vertical beam and a first connecting arm, the vertical beam is vertically installed on the workbench, the first connecting arm includes: a locking sleeve, a U-shaped connecting arm body, the locking sleeve is installed at the top position of the vertical beam, and the locking sleeve is connected to one end of the U-shaped connecting arm body, and the visual inspection tool includes an industrial inspection camera, which is located directly above the fixture body and installed at the other end of the U-shaped connecting arm body. The technical solution of this patent sets a locking sleeve so that the industrial inspection camera can slide up and down to meet the inspection requirements of different workpieces. This technical solution has the following defects in actual application:

[0004] In the actual process of visual inspection of workpieces, it is necessary to image the outer surface of the workpiece at different positions, that is, the position of the workpiece needs to be rotated during the inspection process. The technical solution of the above patent does not have a mechanism for driving the workpiece to rotate. The rotation process is mainly completed manually, which increases the amount of manual labor and affects the efficiency of visual inspection of workpieces. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, the utility model aims to provide a workpiece visual inspection device. The utility model can drive the workpiece to rotate to adjust the imaging angle, reduce the manual labor, and improve the workpiece visual inspection efficiency and automation.

[0006] The utility model discloses a workpiece visual inspection device, comprising:

[0007] A frame having an imaging area and a workpiece area arranged opposite to each other;

[0008] An imaging assembly is disposed on the frame and located in the imaging area, and is slidably connected to the frame through a telescopic mechanism, so that the imaging assembly can slide on the frame toward or away from the workpiece area;

[0009] A clamping assembly, which is arranged on the frame and located in the workpiece area, the clamping assembly includes a turntable, a power clamp, a first drive member and a second drive member, the number of the turntables is at least one pair and they are arranged opposite to each other, the turntable is rotatably connected to the frame so that the two turntables in the same pair rotate synchronously, and the axial direction of the turntable is perpendicular to the sliding direction of the imaging assembly, the first drive member is linked with the turntable to drive the turntable to rotate; the number of the power clamps is at least one pair, the two power clamps in the same pair are relatively arranged on the outer circumferential surfaces of the two turntables in the same pair, the power clamps are rotatably connected to the turntable, and the rotation direction of the power clamps is in the same direction as the rotation direction of the turntable, and the second drive member is provided at each of the power clamps, and the second drive member is linked with the power clamps to drive the power clamps to rotate.

[0010] Preferably, the imaging assembly comprises a fixing plate, an industrial camera and a light source, the light source is embedded on one side of the fixing plate close to the clamping assembly, and the industrial camera corresponds to the light source.

[0011] Preferably, the telescopic mechanism includes a fixed block, a slider and a third driving member, the fixed block is fixedly connected to the frame, a side of the fixed block close to the clamping assembly extends in a direction away from the clamping assembly to form a sliding groove adapted for the slider, the slider is slidably arranged in the sliding groove, the fixed plate is connected to the slider, and the third driving member is linked to the slider.

[0012] Preferably, the number of the imaging components is three groups, and the three groups of imaging components are arranged at equal intervals along the width direction of the frame.

[0013] Preferably, the number of the power clamps is multiple pairs, and the outer peripheral surface of the turntable is formed with a mounting plate that is compatible with the number of the power clamps, and a transfer hole is opened on the mounting plate. The end of the power clamp is connected to a synchronous wheel that is compatible with the transfer hole, and the synchronous wheel is rotatably set in the transfer hole, and the second driving member is linked to the synchronous wheel.

[0014] Preferably, a plurality of pairs of the power clamps are arranged at equal angular intervals along the circumference of the turntable.

[0015] Preferably, the inner side surface of the power clamp is covered with a soft layer.

[0016] Preferably, the clamping assembly includes a rotating shaft and two support plates, the two support plates are relatively arranged on both sides of the frame and connected to the frame, the two ends of the rotating shaft are respectively rotatably connected to the two support plates, the turntable is mounted on the rotating shaft and rotates synchronously with the rotating shaft, and the output end of the first driving member is connected to the rotating shaft.

[0017] Preferably, in the two rotating disks in the same pair, at least one rotating disk is detachably connected to the rotating shaft, so that the distance between the two rotating disks in the same pair is adjustable.

[0018] Preferably, the clamping assembly also includes a connecting sleeve and a locking bolt, the connecting sleeve is connected to the turntable, and the connecting sleeve is arranged on the outside of the rotating shaft, the end of the locking bolt passes through the side wall of the connecting sleeve and abuts against the outer peripheral surface of the rotating shaft, and the locking bolt is threadedly matched with the connecting sleeve.

[0019] The workpiece visual inspection device described in the utility model has the advantages of:

[0020] 1. The utility model provides a slidingly connected imaging component so that the position of the imaging component and the workpiece area can be adjusted, thereby enabling the imaging component to have a sufficient focusing distance to meet the detection requirements of different workpieces;

[0021] 2. The utility model grabs and clamps the workpiece to be inspected by setting a turntable and a power clamp mechanism. With the conveyor belt for conveying the workpiece, the workpiece can be grabbed from below and moved to a position corresponding to the imaging component by the rotation of the turntable, thereby realizing automatic grabbing and movement of the workpiece. There is no need to manually load the workpiece, which reduces the amount of manual labor and helps to improve the inspection efficiency.

[0022] 3. The utility model drives the power clamp to rotate in the circumferential direction by setting a second driving member, so that the power clamp can drive the workpiece to rotate after clamping the workpiece, and adjust different surfaces of the workpiece to face the imaging component, so that the imaging component can image different surfaces of the workpiece without manual rotation, thereby reducing the amount of manual labor and improving the efficiency and automation of workpiece visual inspection;

[0023] 4. The utility model adopts a power clamp as a workpiece grabbing and clamping component, which can adapt to the clamping of workpieces of different shapes, especially the clamping of workpieces of irregular shapes, and has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural schematic diagram of a workpiece visual inspection device described in this embodiment;

[0025] Figure 2 is a schematic structural diagram of the telescopic mechanism and imaging assembly described in this embodiment;

[0026] Figure 3 is a schematic structural diagram of the clamping assembly described in this embodiment;

[0027] Figure 4 yes Figure 3 Schematic diagram of the structure at position A in the middle.

[0028] Explanation of the accompanying drawings: 1-frame, 2-imaging component, 21-fixed plate, 22-industrial camera, 23-light source, 3-telescopic mechanism, 31-fixed block, 32-slider, 33-third driving member, 4-clamping assembly, 41-turntable, 42-power clamp, 43-first driving member, 44-second driving member, 45-mounting plate, 46-rotating shaft, 47-support plate, 5-workpiece. DETAILED DESCRIPTION

[0029] like Figure 1-Figure 4 As shown, a workpiece visual inspection device described in the utility model includes:

[0030] The frame 1 is a square frame structure, which is assembled from a plurality of steel bars, with a hollow middle portion to form an area for installing other components, and a top cover plate on the upper portion. Specifically, the frame 1 has an imaging area and a workpiece area 5 arranged relatively therein, for example, the imaging area is located at the upper portion of the frame 1, and the workpiece area 5 is located at the lower portion of the frame 1.

[0031] The imaging assembly 2 is arranged on the frame 1 and is located in the imaging area, and is slidably connected to the frame 1 through the telescopic mechanism 3, so that the imaging assembly 2 can slide on the frame 1 to approach or move away from the workpiece 5 area to adjust the distance between the imaging assembly 2 and the workpiece 5 and perform focusing. For example, when the imaging area and the workpiece 5 area are arranged relative to each other up and down, the sliding direction of the imaging assembly 2 is up and down sliding.

[0032] The clamping assembly 4 is arranged on the frame 1 and is located in the workpiece 5 area. For example, for the imaging area and the workpiece 5 area arranged up and down, the clamping assembly 4 is located below the imaging assembly 2. The clamping assembly 4 specifically includes a turntable 41, a power clamp 42, a first driving member 43 and a second driving member 44. The turntable 41 is in the shape of a disk. The number of the turntables 41 is at least one pair, and the two turntables 41 of a pair are coaxially arranged opposite to each other. The turntable 41 is rotatably connected to the frame 1 so that the two turntables 41 of the same pair can rotate synchronously relative to the frame 1. The axial direction of the turntable 41 is perpendicular to the sliding direction of the imaging assembly 2. For example, when the sliding direction of the imaging assembly 2 is up and down sliding, the axial direction of the turntable 41 extends along the horizontal direction.

[0033] The first driving member 43 is linked with the turntable 41 to drive the turntable 41 to rotate. Exemplarily, the first driving member 43 can be a servo motor connected to the rotating shaft 46 of the turntable 41 through a coupling, thereby driving the turntable 41 to rotate relative to the frame 1.

[0034] The power clamp 42 is rotatably connected to the turntable 41, and the rotation direction of the power clamp 42 is the same as the rotation direction of the turntable 41. Specifically, the power clamp 42 is a pneumatic clamp or an electric clamp. For the pneumatic clamp, the opening and closing of the clamp can be controlled by the air pump's air pumping and exhausting, thereby controlling the power clamp 42 to perform the action of clamping or releasing the workpiece 5. The rotation direction of the power clamp 42 is the same as that of the turntable 41, that is, the power clamp 42 rotates around the circumference of the turntable 41. The second driving member 44 is provided at each power clamp 42. For example, the second driving member 44 is a servo motor, and the power clamp 42 can be driven to rotate by the second driving member 44.

[0035] Furthermore, in the present embodiment, the imaging assembly 2 specifically includes a fixed plate 21, an industrial camera 22 and a light source 23. The fixed plate 21 is a "concave" plate structure, and a through hole is provided in the lower part thereof. The light source 23 is embedded in the through hole. The industrial camera 22 is located directly above the light source 23, so that the industrial camera 22 and the light source 23 are located on the same axis.

[0036] The telescopic mechanism 3 specifically includes a fixed block 31, a slider 32 and a third driving member 33. The fixed block 31 is fixedly connected to the frame 1. Specifically, the fixed block 31 is a square block structure, connected to the top cover plate on the upper part of the frame 1. The fixed block 31 extends from the clamping assembly 4 to the direction away from the clamping assembly 4 to form a slide groove adapted to the slider 32, that is, the lower surface of the fixed block 31 is recessed upward to form a slide groove, and the cross-sectional size of the slide groove is slightly larger than the size of the slider 32. The slider 32 is slidably arranged in the slide groove, so that the slider 32 can slide up and down relative to the fixed block 31. The fixed plate 21 is connected to the slider 32, so that the imaging assembly 2 can slide up and down with the sliding of the slider 32 to adjust the focus. The third driving member 33 is linked with the slider 32 to drive the slider 32 to slide up and down. For example, the third driving member 33 can be a servo motor, which is linked with the slider 32 through a ball screw or a gear rack. The ball screw or the gear rack converts the rotational motion of the servo motor into the up and down sliding of the slider 32. In other optional embodiments, the third driving member 33 can also select a cylinder or an electric cylinder to drive the slider 32 to slide up and down.

[0037] The above structure can facilitate the installation of the industrial camera 22 and the light source 23, and the third driving member 33 can be used to adjust the up and down sliding of the control slider 32 to achieve focusing.

[0038] Furthermore, in the present embodiment, the number of imaging components 2 is three groups, and the three groups of imaging components 2 are arranged at equal intervals along the width direction of the frame 1. The three groups of imaging components 2 can be suitable for imaging long strips of workpieces 5, and each group of imaging components 2 can be independently retracted and focused, and can be suitable for irregularly shaped workpieces 5, making the present device more applicable.

[0039] Furthermore, in this embodiment, the number of power clamps 42 is multiple pairs, and a rectangular mounting plate 45 is formed on the outer circumference of the turntable 41, and a transfer hole is provided on the mounting plate 45. The end of the power clamp 42 is connected to a synchronous wheel adapted to the transfer hole, and the synchronous wheel is rotatably embedded in the transfer hole, so that the power clamp 42 can rotate relative to the mounting plate 45. The second driving member 44 is arranged beside the mounting plate 45, and the output shaft is connected to the synchronous wheel, so that the second driving member 44 can drive the synchronous wheel, and then drive the power clamp 42 to rotate to adjust the angle of the workpiece 5. The fixed structure of the power clamp 42 of this embodiment has the advantages of simple structure and easy implementation.

[0040] Furthermore, in the present embodiment, a plurality of pairs of power jaws 42 are arranged at equal intervals along the circumference of the turntable 41. Specifically, when performing visual inspection of the workpiece 5, the plurality of pairs of power jaws 42 can simultaneously clamp each workpiece 5 that needs to be inspected, and then the turntable 41 is rotated only by the angular interval between two adjacent power jaws 42 at a time, and imaging inspection is performed by the imaging component 2. After the inspection of the workpiece 5 is completed, the turntable 41 is rotated again by the same angle to perform imaging inspection on the next workpiece 5.

[0041] Furthermore, in the present embodiment, the inner side surface of the power clamp 42 is covered with a soft layer, which may specifically be a rubber layer or a silicone layer. The soft layer can, on the one hand, increase the relative friction between the power clamp 42 and the workpiece 5 when clamping the workpiece 5 to prevent the workpiece 5 from falling off, and on the other hand, can prevent the surface of the workpiece 5 from being scratched during the clamping process.

[0042] Further, in this embodiment, the clamping assembly 4 includes a rotating shaft 46 and two supporting plates 47, the two supporting plates 47 are relatively arranged on both sides of the frame body 1 and connected to the frame body 1, the two ends of the rotating shaft 46 are respectively rotatably connected to the two supporting plates 47 by hole-shaft matching, the rotating disk 41 is sleeved on the rotating shaft 46 and connected to the rotating shaft 46, and the output shaft of the first driving member 43 is coaxially arranged and connected to the rotating shaft 46, so that when the first driving member 43 drives the rotating shaft 46 to rotate, it will drive the rotating disk 41 to rotate synchronously. The structure of the clamping assembly 4 in this embodiment has the advantages of stable structure and easy implementation.

[0043] Furthermore, in the present embodiment, in the two rotating disks 41 in the same pair, at least one rotating disk 41 is detachably connected to the rotating shaft 46, so that the spacing between the two rotating disks 41 in the same pair can be adjusted. Specifically, the rotating disk 41 can be slidably sleeved on the rotating shaft 46, and the clamping assembly 4 also includes a connecting sleeve (not shown in the figure) and a locking bolt (not shown in the figure). The connecting sleeve is a hollow circular sleeve structure, and the inner diameter is larger than the outer diameter of the rotating shaft 46. A threaded hole is opened on a side wall of the connecting sleeve, and the locking bolt is threadedly connected to the threaded hole, so that the end of the locking bolt can pass through the threaded hole into the interior of the connecting sleeve and abut against the outer circumferential surface of the rotating shaft 46. Thus, when When the locking bolt is screwed outwards and the end of the locking bolt is separated from the outer circumference of the rotating shaft 46, relative sliding can occur between the connecting sleeve and the rotating shaft 46. At this time, the whole formed by the rotating disk 41 and the connecting sleeve can slide along the rotating shaft 46 to adjust the spacing with the other rotating disk 41 in the same pair. After adjusting to the desired position, the locking bolt is rotated in the opposite direction to extend into the inside of the connecting sleeve until the end of the locking bolt is tightly against the outer circumference of the rotating shaft 46. At this time, the connecting sleeve cannot rotate or slide relative to each other due to the relative friction between the locking bolt and the outer circumference of the rotating shaft 46. The rotating disk 41 and the rotating shaft 46 are relatively locked, so that the position of the rotating disk 41 remains fixed. In other optional embodiments, the end of the locking bolt can be connected to an arc-shaped abutment sheet, which is adapted to the outer circumference of the rotating shaft 46. The abutment sheet can increase the contact area with the rotating shaft 46, so that the locking effect on the rotating shaft 46 is more stable. In this embodiment, a turntable 41 structure detachably connected to the rotating shaft 46 is provided so that the distance between the two turntables 41 in the same pair can be adjusted, thereby allowing the two relatively arranged power clamps 42 to clamp workpieces 5 of different lengths. This means that the device can be used in the visual inspection process of workpieces 5 of different lengths, which can further improve the applicability of the device.

[0044] The following will fully describe the working process of the visual inspection device of this embodiment in combination with the above contents.

[0045] The device is installed above the conveyor belt that horizontally transports the workpiece 5, so that the workpiece 5 enters the clamping range of the power clamp 42 located at the bottom during transportation, and the height of the imaging component 2 is adjusted by the telescopic mechanism 3 to meet the focusing requirements of the workpiece 5 to be inspected this time.

[0046] Start the conveyor belt to start conveying the workpiece 5. When the workpiece 5 enters the clamping range of the power clamp 42, the power clamp 42 at the bottom is closed to clamp the workpiece 5. After confirming that the clamping is in place, start the first driving member 43 to drive the turntable 41 to rotate, and the next power clamp 42 can be rotated to enter the position of the previous power clamp 42 to continue clamping the next workpiece 5. Similarly, the workpieces 5 to be inspected are clamped to the power clamp 42 one by one, and then the turntable 41 is rotated to rotate the workpiece 5 to the top, that is, the position facing the imaging component 2, and the industrial camera 22 is controlled to image the workpiece 5 for visual inspection. During this process, the power clamp 42 can be driven to rotate by the second driving member 44, and then the workpiece 5 can be driven to rotate, so that the industrial camera 22 can image different outer surfaces of the workpiece 5. After completing the visual inspection process of a single workpiece 5, the turntable 41 can be rotated to rotate the next workpiece 5 to the top, and the imaging steps are repeated for visual inspection.

[0047] The industrial camera 22 collects the image of the workpiece 5 and transmits it to the host computer. The following is an exemplary workpiece image processing process:

[0048] Split the artifact image into RGB channels;

[0049] The grayscale average value is used to realize the segmentation threshold of the contrast channel, realize the binarization of the regional image, and extract the target area.

[0050] Complete the threshold segmentation of the image extraction area and realize the segmentation of the connected area;

[0051] Perform Blob analysis on the connected domain after threshold segmentation;

[0052] Select the target area after Blob analysis through feature extraction;

[0053] According to the selected target area, the defect type of the workpiece 5 is determined, the scratch length is calculated, and the bump area is calculated, and then the quality of the workpiece 5 is determined and the visual inspection result is output.

[0054] It should be noted that the above is a processing method for visual inspection of workpiece images in the prior art, and the present utility model does not improve the above processing method.

[0055] The utility model provides a slidingly connected imaging component 2 so that the position of the imaging component 2 and the workpiece 5 can be adjusted, thereby enabling the imaging component 2 to have a sufficient focusing distance to meet the detection requirements of different workpieces 5;

[0056] The utility model grabs and clamps the workpiece 5 to be inspected by setting a mechanism of a turntable 41 and a power clamp 42. With the help of a conveyor belt for conveying the workpiece 5, the workpiece 5 can be grabbed from below and moved to a position corresponding to the imaging component 2 by the rotation of the turntable 41, so that the workpiece 5 can be automatically grabbed and moved without manual loading of the workpiece 5, thereby reducing the amount of manual labor and helping to improve the inspection efficiency.

[0057] The utility model drives the power clamp 42 to perform circumferential rotational motion by arranging the second driving member 44, so that the power clamp 42 can drive the workpiece 5 to perform rotational motion after clamping the workpiece 5, and adjust different surfaces of the workpiece 5 to face the imaging component 2, so that the imaging component 2 can image different surfaces of the workpiece 5, without manual rotation, thereby reducing the amount of manual labor and improving the visual inspection efficiency and automation of the workpiece 5;

[0058] The utility model adopts a power clamp 42 as a gripping and clamping component for a workpiece 5, which can be adapted to clamp workpieces 5 of different shapes, and is particularly suitable for clamping workpieces 5 of irregular shapes, and has wider applicability.

[0059] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A workpiece visual inspection device, characterized in that: include: A frame having an imaging area and a workpiece area arranged opposite to each other; An imaging assembly is disposed on the frame and located in the imaging area, and is slidably connected to the frame through a telescopic mechanism, so that the imaging assembly can slide on the frame toward or away from the workpiece area; A clamping assembly, which is arranged on the frame and located in the workpiece area, the clamping assembly includes a turntable, a power clamp, a first drive member and a second drive member, the number of the turntables is at least one pair and they are arranged opposite to each other, the turntable is rotatably connected to the frame so that the two turntables in the same pair rotate synchronously, and the axial direction of the turntable is perpendicular to the sliding direction of the imaging assembly, the first drive member is linked with the turntable to drive the turntable to rotate; the number of the power clamps is at least one pair, the two power clamps in the same pair are relatively arranged on the outer circumferential surfaces of the two turntables in the same pair, the power clamps are rotatably connected to the turntable, and the rotation direction of the power clamps is in the same direction as the rotation direction of the turntable, and the second drive member is provided at each of the power clamps, and the second drive member is linked with the power clamps to drive the power clamps to rotate.

2. The workpiece visual inspection device according to claim 1, characterized in that: The imaging assembly comprises a fixing plate, an industrial camera and a light source. The light source is embedded on one side of the fixing plate close to the clamping assembly, and the industrial camera corresponds to the light source.

3. The workpiece visual inspection device according to claim 2, characterized in that: The telescopic mechanism includes a fixed block, a slider and a third driving member. The fixed block is fixedly connected to the frame. A side of the fixed block close to the clamping assembly extends in a direction away from the clamping assembly to form a sliding groove adapted for the slider. The slider is slidably arranged in the sliding groove. The fixed plate is connected to the slider, and the third driving member is linked to the slider.

4. The workpiece visual inspection device according to claim 2 or 3, characterized in that: The number of the imaging components is three, and the three groups of imaging components are arranged at equal intervals along the width direction of the frame.

5. The workpiece visual inspection device according to claim 1, characterized in that: The number of the power clamps is multiple pairs, and the outer peripheral surface of the turntable is formed with a mounting plate that is compatible with the number of the power clamps. The mounting plate is provided with a transfer hole, and the end of the power clamp is connected to a synchronous wheel that is compatible with the transfer hole. The synchronous wheel is rotatably set in the transfer hole, and the second driving member is linked to the synchronous wheel.

6. The workpiece visual inspection device according to claim 5, characterized in that: A plurality of pairs of the power clamps are arranged at equal angles along the circumference of the rotating disk.

7. The workpiece visual inspection device according to claim 1, 5 or 6, characterized in that: The inner side surface of the power clamp is covered with a soft layer.

8. The workpiece visual inspection device according to claim 1, characterized in that: The clamping assembly includes a rotating shaft and two supporting plates, the two supporting plates are relatively arranged on both sides of the frame and connected to the frame, the two ends of the rotating shaft are respectively rotatably connected to the two supporting plates, the turntable is sleeved on the rotating shaft and rotates synchronously with the rotating shaft, and the output end of the first driving member is connected to the rotating shaft.

9. The workpiece visual inspection device according to claim 8, characterized in that: At least one of the two rotating disks in the same pair is detachably connected to the rotating shaft, so that the distance between the two rotating disks in the same pair is adjustable.

10. The workpiece visual inspection device according to claim 9, characterized in that: The clamping assembly also includes a connecting sleeve and a locking bolt. The connecting sleeve is connected to the turntable and is sleeved on the outside of the rotating shaft. The end of the locking bolt passes through the side wall of the connecting sleeve and abuts against the outer circumferential surface of the rotating shaft. The locking bolt is threadedly matched with the connecting sleeve.

Images