Roller detection machine and detection method thereof

Abstract

The invention relates to the technical field of detection equipment, and provides a roller detection machine which comprises a detection main machine and a feeding mechanism, the detection main machine comprises a camera, a moving assembly, an abutting assembly and a rotating base, the feeding mechanism comprises a feeding trolley and an overturning and transplanting assembly, and the feeding trolley is used for moving the overturning and transplanting assembly; during detection, a roller is fixed to the overturning and transplanting assembly, the feeding trolley moves to the detection main machine, the overturning and transplanting assembly is overturned till the roller is in a vertical state and vertically moves downwards to the corresponding position of the detection main machine, one end of the roller abuts against the rotating base, the other end of the roller moves and abuts against the rotating base in the vertical direction, and the rotating base drives the roller to rotate; the camera moves to photograph and detect the roller through the moving assembly, after detection is finished, the overturning and transplanting assembly drives the roller to vertically move upwards, and the feeding trolley moves the roller out of the detection host. On the basis, accurate position measurement of the first groove of the roller, shape measurement of each groove and measurement of the distance between the grooves can be achieved, and consistency of groove opening of the roller is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of testing equipment, and in particular to a roller testing machine and a testing method thereof. Background Art

[0002] Roller grooves are key components of magnetic material processing equipment, and the accuracy of their grooves directly impacts the accuracy of magnetic material processing. However, traditional measurement methods make it difficult to determine the position of the first groove in the roller. The shape of each groove and the spacing between them are also difficult to measure, resulting in inconsistent groove spacing.

[0003] Therefore, the present application studies a roller inspection machine, which enables accurate positioning of the first groove of the roller, shape measurement of each groove and spacing measurement between grooves, to ensure the consistency of roller grooving. Summary of the Invention

[0004] In order to accurately measure the first groove of the roller, measure the shape of each groove and the spacing between grooves, and ensure the consistency of roller grooving, the present application provides a roller detection machine and a detection method thereof.

[0005] This application provides a roller inspection machine and its inspection method, which adopt the following technical solutions: A roller inspection machine comprises an inspection host and a feeding mechanism, the inspection host comprises a camera, a moving component, a pressing component and a rotating seat, the feeding mechanism comprises a loading trolley and a flipping and transferring component installed on the loading trolley; the loading trolley is used to move the flipping and transferring component, and the flipping and transferring component is used to flip and lift the roller; during inspection, the roller is fixed to the flipping and transferring component, the loading trolley moves to the inspection host, the flipping and transferring component flips the roller to a vertical state, the flipping and transferring component moves vertically downward to the corresponding position of the inspection host, one end of the roller is abutted against the rotating seat, and the other end is moved and pressed in the vertical direction by the pressing component, the rotating seat drives the roller to rotate, and the camera realizes horizontal and vertical movement of the roller through the moving component to take pictures of the roller for inspection. After the inspection is completed, the flipping and transferring component drives the roller to move vertically upward, and the loading trolley moves the roller out of the inspection host.

[0006] By adopting the above technical solution, the camera moves in the horizontal and vertical directions through the moving assembly, and can quickly locate and photograph the first groove, thereby realizing accurate positioning of the first groove. At the same time, the roller can be rotated through the rotating seat, so that the camera can measure the shape of each groove and the spacing between the grooves, thereby solving the problems of incomplete groove shape measurement and large groove spacing errors, and thus ensuring the processing consistency of the roller groove.

[0007] Optionally, the pressing assembly includes a pressing piece and an adjustment seat, the pressing piece is mounted on the adjustment seat, and the position of the pressing piece is adjusted by the adjustment assembly.

[0008] Optionally, the adjustment assembly includes a plurality of pressing bolts, which are threadedly connected to the adjustment seat and press against the peripheral side of the pressure piece; and / or the adjustment assembly also includes an adjustment plate and a fixing bolt, the pressure piece is placed on the adjustment plate, and the fixing bolt passes through the adjustment plate and is threadedly connected to the adjustment seat.

[0009] By adopting the above technical solution, by adjusting the position of the top pressure bolt, the pressure piece can be fine-tuned in the horizontal direction along the front, back, left and right directions, so that it can be accurately pressed against the top of the roller; by adjusting the fixing bolt, the adjustment seat can be adjusted up and down, thereby realizing the up and down adjustment of the pressure piece.

[0010] Optionally, the movable component includes a horizontal linear module and a vertical linear module, the camera is installed on the vertical linear module, and the vertical linear module is installed on the horizontal linear module.

[0011] Optionally, the flipping and transferring assembly includes a transferring mechanism, a flip seat and a connecting rod structure, the flip seat is used to flip the transferring mechanism, the transferring mechanism is used to move the roller, and the connecting rod structure is installed on the loading trolley and drives the flip seat to rotate between the horizontal and vertical directions.

[0012] By adopting the above technical solution, the roller can be fixed in the horizontal direction and can be pushed into the corresponding position of the detection host for detection in the vertical direction.

[0013] Optionally, a movable plate is slidably provided on the flip seat, and a clamping tool is provided on the movable plate. The clamping tool cooperates with a strap to fix the roller.

[0014] Optionally, the transplanting mechanism further includes a driving assembly, which drives the movable plate to move on the turning seat.

[0015] Optionally, the connecting rod structure includes a rotating block, a first rotating shaft, a second rotating shaft, a connecting rod, a third rotating shaft and a linking block, the rotating block is installed on the flip seat, the first rotating shaft is rotatably set on one side of the rotating block and is rotatably connected to the loading trolley; the second rotating shaft is rotatably connected to the other side of the rotating block and is rotatably connected to one end of the connecting rod, the other end of the connecting rod is rotatably connected to the third rotating shaft, and the third rotating shaft is rotatably connected to the linking block, and the linking block is slidably set on the loading trolley.

[0016] By adopting the above technical solution, when the connecting block moves toward the side of the second rotating axis, it drives one end of the connecting rod to move toward the side of the second rotating axis, and the other end rotates to make the connecting rod tend to the vertical direction, thereby realizing the vertical state of the flip seat; when the connecting block moves away from the second rotating axis, the connecting block drives the connecting rod to drive horizontally, thereby realizing the horizontal state of the flip seat. During the movement of the connecting block, the flip seat is continuously rotated between 0°-90°.

[0017] A roller detection method, using the roller detection machine, comprises the following steps: S1. Fix the roller on the flip transfer assembly, move the loading trolley to the detection host, flip the roller to a vertical position by the flip transfer assembly, and move it vertically downward to the corresponding position of the detection host. Push the loading trolley into the detection host to make one end of the roller contact the rotating seat, and the other end of the roller is moved in the vertical direction by the pressing assembly to press the roller, so that the roller is fixed on the rotating seat; S2, the camera moves to the first groove of the roller for positioning; S3: The rotating seat drives the roller to rotate one circle, and the camera starts to shoot the roller to collect 3D height images. The camera transmits the collected 3D height images to a control system for analysis. The control system cyclically sections the collected 3D height images to generate 2D contour lines. The control system then finds the edges of each groove based on the 2D contour lines and calculates the groove depth, groove pitch, and angle. Finally, the camera moves to the next shooting position to shoot. S4, repeat step S3 until the camera captures the last slot; S5. The control system judges the test results of the rollers. If the test is qualified, manual unloading is carried out. If the test is unqualified, the detection host sends out an audible and visual alarm. S6. After the inspection is completed, the flip transfer assembly drives the roller to move vertically upward, the loading trolley moves the roller out of the inspection host, and the flip transfer assembly rotates to a horizontal position.

[0018] Optionally, in step S3, the algorithm for converting the 3D height image into a local 2D contour line is as follows: g(x)=[Avg(a(x,y))]; g(x) is the grayscale value set of the pixel points used to generate the 2D contour line, a(x,y) is the grayscale value set of the pixel points in the local area, and Avg(a(x,y)) is the average grayscale value set in the Y direction of each area; The algorithm for finding the edges of each slot along the 2D contour line is as follows: The least squares method is used to fit the straight line. The algorithm principle is as follows: Assume that there are N points known, and let the equation of this line be: y=a·x+b; The calculation formulas for a and b are as follows: .

[0019] In summary, this application includes at least one of the following beneficial technical effects: The camera moves horizontally and vertically through the mobile assembly, which can quickly locate and photograph the first groove, thereby achieving accurate positioning of the first groove. At the same time, the roller can rotate through the rotating seat, allowing the camera to measure the shape of each groove and the spacing between grooves, thus solving the problems of incomplete groove shape measurement and large errors in groove spacing, thereby ensuring the processing consistency of roller grooves. By adjusting the position of the pressing bolt, the pressing piece can be fine-tuned in the horizontal direction along the front, back, left and right directions, so that it can accurately press on the top of the roller; When the connecting block moves toward the side of the second rotating axis, it drives one end of the connecting rod to move toward the side of the second rotating axis, and the other end rotates to make the connecting rod tend to the vertical direction, thereby realizing the vertical state of the flip seat; when the connecting block moves away from the second rotating axis, the connecting block drives the connecting rod to be horizontal, thereby realizing the horizontal state of the flip seat. During the movement of the connecting block, the flip seat is continuously rotated between 0°-90°. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the detection host in the roller detection machine of the embodiment of the present application; Figure 2 This is a structural diagram of the feeding mechanism in the roller inspection machine according to an embodiment of the present application; Figure 3 This is a schematic structural diagram of the pressing assembly in the roller detection machine according to an embodiment of the present application; Figure 4 This is a structural diagram of the pressing assembly in the roller inspection machine according to an embodiment of the present application from another perspective; Figure 5 This is a structural diagram of the feeding mechanism of the roller inspection machine in an embodiment of the present application from another perspective; Figure 6 It is a structural schematic diagram of the transfer assembly in the roller inspection machine according to an embodiment of the present application.

[0021] Figure numerals: 1. Detection host; 11. Camera; 12. Moving assembly; 121. Horizontal linear module; 122. Vertical linear module; 13. Pressing assembly; 31. Pressing part; 32. Adjusting seat; 14. Rotating seat; 15. Pressing bolt; 16. Adjusting plate; 17. Fixing bolt; 2. Loading mechanism; 21. Loading trolley; 22. Flipping transfer assembly; 221. Flipping seat; 222. Moving plate; 223. Clamping tool; 224. Connecting hole; 225. Connecting rod structure; 51. Rotating block; 52. First rotating axis; 53. Second rotating axis; 54. Connecting rod; 55. Third rotating axis; 56. Linking block; 23. Driving assembly. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-6 This application is described in further detail.

[0023] The present application embodiment discloses a roller inspection machine. Figure 1 and Figure 2 The roller inspection machine includes a detection host 1 and a feeding mechanism 2. The detection host 1 includes a camera 11, a moving component 12, a pressing component 13 and a rotating seat 14; the feeding mechanism 2 includes a loading trolley 21 and a flipping and transferring component 22 installed on the loading trolley 21. The loading trolley 21 is used to move the flipping and transferring component 22, and the flipping and transferring component 22 can be moved to any position. The flipping and transferring component 22 is used to flip and lift the roller; during inspection, the roller is fixed to the flipping and transferring component 22, the loading trolley 21 moves to the detection host 1, the flipping and transferring component 22 flips the roller to a vertical state, and moves vertically downward to the corresponding position of the detection host 1, the loading trolley 21 pushes the detection host 1 to make one end of the roller abut against the rotating seat 14, the rotating seat 14 is rotated by the motor, and the other end is moved downward in the vertical direction by the pressing component 13, and the pressing component 13 can be moved vertically in the detection host 1 through the cooperation of the guide rail and the cylinder. The rotating base 14 drives the roller to rotate, allowing the camera 11 to capture the entire circumference of the roller. The camera 11 is moved horizontally and vertically by the moving assembly 12 to photograph the roller for inspection. After the inspection is completed, the flip transfer assembly 22 drives the roller to move vertically upward. The loading trolley 21 moves the roller out of the inspection host 1, and the flip transfer assembly 22 rotates to a horizontal position.

[0024] Reference Figure 6 The moving component 12 includes a horizontal linear module 121 and a vertical linear module 122. The camera 11 is installed on the vertical linear module 122 to achieve vertical movement. The vertical linear module 122 is installed on the horizontal linear module 121. The horizontal linear module 121 drives the vertical linear module 122 to move closer to or away from the roller in the horizontal direction.

[0025] Therefore, the first groove can be quickly located and photographed, thereby achieving accurate positioning of the first groove. At the same time, the roller can be rotated by the rotating seat 14, so that the camera 11 can measure the shape of each groove and the spacing between the grooves, thereby solving the problems of incomplete groove shape measurement and large errors in groove spacing, and thus ensuring the processing consistency of the roller groove.

[0026] Reference Figure 3 In some embodiments, the pressing assembly 13 includes a pressing member 31 and an adjustment seat 32. The pressing member 31 is mounted on the adjustment seat 32, and the position of the pressing member 31 is adjusted by the adjustment assembly. This allows the pressing member 31 to accurately press against the end of the roller, allowing the roller to rotate smoothly.

[0027] In some embodiments, the adjustment assembly includes a plurality of pressing bolts 15, which are threadedly connected to the adjustment seat 32 and press against the circumference of the pressure member 31. The pressing bolts 15 are arranged on three adjacent sides of the pressure member 31, and the pressure member 31 is provided with a waist-shaped hole, so that after fine-tuning the position of the pressure member 31, the pressure member 31 can be smoothly threaded with the adjustment seat 32 through the waist-shaped hole.

[0028] Reference Figure 4 In some embodiments, the adjustment assembly further includes an adjustment plate 16 and a fixing bolt 17. The pressure piece 31 is placed on the adjustment plate 16. A gap is left between the portion of the pressure piece 31 passing through the adjustment plate 16 and the adjustment plate 16, so that fine adjustment of the pressure piece 31 in the horizontal direction can be achieved. The fixing bolt 17 passes through the adjustment plate 16 and is screwed to the adjustment seat 32. The upper and lower heights of the adjustment plate 16 are adjusted by screwing in or out the fixing bolt 17, thereby achieving fine adjustment of the height of the adjustment plate 16.

[0029] Refer again Figure 2 In some embodiments, the flip transfer assembly 22 includes a flip seat 221 and a connecting rod structure 225. The flip seat 221 is used to flip the transfer assembly. The connecting rod structure 25 is mounted on the loading trolley 21 and drives the flip seat 221 to rotate between horizontal and vertical directions. When the flip transfer assembly is in the horizontal direction, it can facilitate the fixation of the roller. When in the vertical direction, it can push the roller into the detection host 1 for fixation.

[0030] In some embodiments, a movable plate 222 is slidably mounted on the flip seat 221. A clamping fixture 223 is mounted on the movable plate 222. The clamping fixture 223 is V-shaped and is used to position the roller within the clamping fixture 223. The clamping fixture 223 has a connection hole 224 formed therein, through which a strap is passed to secure the roller. The clamping fixture 223 and the strap cooperate to secure the roller. Once the roller is secured within the detection host 1, the strap can be removed to remove the roller from the flip seat 221.

[0031] In some embodiments, the flip transfer assembly 22 further includes a drive assembly 23, which can be a linear module. The drive assembly 23 drives the movable plate 222 to move on the flip seat 221. When the roller is installed in the detection assembly 1, the drive assembly 23 can drive the movable plate 222 to move downward. After the detection is completed, the drive assembly 23 can drive the movable plate 222 to move upward, so that the roller is separated from the rotating seat 14. After the roller is pulled out of the detection assembly 1, it is flipped to a horizontal position by the flip seat 221.

[0032] Reference Figure 5 In some embodiments, the connecting rod structure 225 includes a rotating block 51, a first rotating shaft 52, a second rotating shaft 53, a connecting rod 54, a third rotating shaft 55 and a connecting block 56. The rotating block 51 is screwed and installed on the flip seat 221. The first rotating shaft 52 is rotatably set on one side of the rotating block 51 and is rotatably connected to the loading trolley 21; the second rotating shaft 53 is rotatably connected to the other side of the rotating block 51 and is rotatably connected to one end of the connecting rod 54. The other end of the connecting rod 54 is rotatably connected to the third rotating shaft 55, and the third rotating shaft 55 is rotatably connected to the connecting block 56. The connecting block 56 is slidably set on the loading trolley 21. The connecting block 56 realizes linear movement on the loading trolley 21 through the cooperation of the guide rail and the motor.

[0033] When the connecting block 56 moves toward the side of the second rotating shaft 53, it drives one end of the connecting rod 54 to move toward the side of the second rotating shaft 53, and the other end rotates to make the connecting rod 54 tend to the vertical direction, thereby realizing the vertical state of the flip seat 221. At this time, the loading trolley 21 can be pushed into the detection host 1, and the roller can be fixed to the detection host 1; when the connecting block 56 moves away from the second rotating shaft 53, the connecting block 56 drives the connecting rod 54 to be driven horizontally, so that the horizontal state of the flip seat 221 is realized, which can facilitate the installation of the roller. During the movement of the connecting block 56, the flip seat 221 is continuously rotated between 0°-90°, and the flip seat 221 can be stopped at any angle between 0°-90°.

[0034] A roller detection method, using the roller detection machine, comprises the following steps: S1. Fix the roller on the flip transfer assembly 22, move the loading trolley 21 to the detection host 1, flip the transfer assembly 22 to flip the roller to a vertical state, and move it vertically downward to the corresponding position of the detection host 1. Push the loading trolley 21 into the detection host 1 to make one end of the roller contact the rotating seat 14, and the other end of the roller is moved and pressed in the vertical direction by the pressing assembly 13, so that the roller is fixed on the rotating seat 14; S2, the camera 11 moves to the first groove of the roller for positioning; S3: The rotating seat 14 drives the roller to rotate one circle, and the camera starts to shoot the roller to collect a 3D height image. The camera 11 transmits the collected 3D height image to a control system for analysis. The control system cyclically cross-sections the collected 3D height image to generate 2D contour lines. The control system then finds the edges of each groove based on the 2D contour lines and calculates the groove depth, groove pitch, and angle. Finally, the camera 11 moves to the next shooting position to shoot. S4, repeat step S3 until the camera captures the last slot; S5. The control system judges the test results of the rollers. If the test is qualified, manual unloading is carried out. If the test is unqualified, the detection host sends out an audible and visual alarm. S6. After the detection is completed, the flip transfer assembly 22 drives the roller to move vertically upward, the loading trolley 21 moves the roller out of the detection host, and the flip transfer assembly 22 rotates to a horizontal position.

[0035] In step S3, the algorithm for converting the 3D height image into a local 2D contour line is as follows: g(x)=[Avg(a(x,y))]; g(x) is the grayscale value set of the pixel points used to generate the 2D contour line, a(x,y) is the grayscale value set of the pixel points in the local area, and Avg(a(x,y)) is the average grayscale value set in the Y direction of each area; The algorithm for finding the edges of each slot along the 2D contour line is as follows: The least squares method is used to fit the straight line. The algorithm principle is as follows: Assume that there are N points known, and let the equation of this line be: y=a·x+b; The calculation formulas for a and b are as follows: .

[0036] The implementation principle of a roller inspection machine in an embodiment of the present application is as follows: the camera 11 moves in the horizontal and vertical directions through the moving component 12, and can quickly locate and photograph the first groove, thereby achieving accurate positioning of the first groove. At the same time, the roller can be rotated by the rotating seat 14, so that the camera 11 can measure the shape of each groove and the spacing between the grooves, thereby solving the problems of incomplete groove shape measurement and large groove spacing errors, and thus ensuring the processing consistency of the roller grooves.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A roller inspection machine, characterized in that: It includes a detection host and a feeding mechanism, the detection host includes a camera, a moving component, a pressing component and a rotating seat, the feeding mechanism includes a feeding trolley and a flipping and transferring component installed on the feeding trolley; the loading trolley is used to move the flipping and transferring component, and the flipping and transferring component is used to flip and lift the roller; during detection, the roller is fixed to the flipping and transferring component, the loading trolley moves to the detection host, the flipping and transferring component flips the roller to a vertical state, and moves vertically downward to the corresponding position of the detection host, one end of the roller is abutted against the rotating seat, and the other end is moved and pressed in the vertical direction by the pressing component, the rotating seat drives the roller to rotate, and the camera realizes horizontal and vertical movement of the roller through the moving component to take pictures of the roller for detection. After the detection is completed, the flipping and transferring component drives the roller to move vertically upward, and the loading trolley moves the roller out of the detection host.

2. The roller inspection machine according to claim 1, characterized in that: The pressing assembly includes a pressing piece and an adjustment seat. The pressing piece is installed on the adjustment seat, and the position of the pressing piece is adjusted by the adjustment assembly.

3. The roller inspection machine according to claim 2, characterized in that: The adjustment assembly includes a plurality of pressing bolts, which are screwed to the adjustment seat and press against the peripheral side of the pressure piece; and / or the adjustment assembly also includes an adjustment plate and fixing bolts, the pressure piece is placed on the adjustment plate, and the fixing bolts pass through the adjustment plate and are screwed to the adjustment seat.

4. The roller inspection machine according to claim 1, characterized in that: The moving component includes a horizontal linear module and a vertical linear module. The camera is installed on the vertical linear module, and the vertical linear module is installed on the horizontal linear module.

5. The roller inspection machine according to claim 1, characterized in that: The flip transfer assembly includes a flip seat and a connecting rod structure. The flip seat is used to fix the roller. The connecting rod structure is installed on the loading trolley and drives the flip seat to rotate between the horizontal direction and the vertical direction.

6. The roller inspection machine according to claim 5, characterized in that: A movable plate is slidably provided on the turnover seat, and a clamping tool is provided on the movable plate. The clamping tool cooperates with a binding belt to fix the roller.

7. The roller inspection machine according to claim 6, characterized in that: The feeding mechanism further comprises a driving assembly, which drives the movable plate to move on the turning seat.

8. The roller inspection machine according to claim 5, characterized in that: The connecting rod structure includes a rotating block, a first rotating shaft, a second rotating shaft, a connecting rod, a third rotating shaft and a linking block. The rotating block is installed on the flip seat. The first rotating shaft is rotatably set on one side of the rotating block and is rotatably connected to the loading trolley; the second rotating shaft is rotatably connected to the other side of the rotating block and is rotatably connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to the third rotating shaft, and the third rotating shaft is rotatably connected to the linking block. The linking block is slidably set on the loading trolley.

9. A roller detection method, using the roller detection machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Fix the roller on the flip transfer assembly, move the loading trolley to the detection host, flip the roller to a vertical position by the flip transfer assembly, and move it vertically downward to the corresponding position of the detection host. Push the loading trolley into the detection host to make one end of the roller contact the rotating seat, and the other end of the roller is moved in the vertical direction by the pressing assembly to press the roller, so that the roller is fixed on the rotating seat; S2, the camera moves to the first groove of the roller for positioning; S3: The rotating seat drives the roller to rotate one circle, and the camera starts to shoot the roller to collect 3D height images. The camera transmits the collected 3D height images to a control system for analysis. The control system cyclically sections the collected 3D height images to generate 2D contour lines. The control system then finds the edges of each groove based on the 2D contour lines and calculates the groove depth, groove pitch, and angle. Finally, the camera moves to the next shooting position to shoot. S4, repeat step S3 until the camera captures the last slot; S5. The control system judges the test results of the rollers. If the test is qualified, manual unloading is carried out. If the test is unqualified, the detection host sends out an audible and visual alarm. S6. After the inspection is completed, the flip transfer assembly drives the roller to move vertically upward, the loading trolley moves the roller out of the inspection host, and the flip transfer assembly rotates to a horizontal position.

10. A roller detection method according to claim 9, characterized in that: In step S3, the algorithm for converting the 3D height image into a local 2D contour line is as follows: g(x)=[Avg(a(x,y))]; g(x) is the grayscale value set of the pixel points used to generate the 2D contour line, a(x,y) is the grayscale value set of the pixel points in the local area, and Avg(a(x,y)) is the average grayscale value set in the Y direction of each area; The algorithm for finding the edges of each slot along the 2D contour line is as follows: The least squares method is used to fit the straight line. The algorithm principle is as follows: Assume that there are N points known, and let the equation of this line be: y=a·x+b; The calculation formulas for a and b are as follows: 。

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