Surface defect optical detection device

Abstract

The invention belongs to the technical field of new material detection, and particularly relates to a surface defect optical detection device which comprises a detection base, vertical rods are arranged on the front face and the back face of the detection base correspondingly, a cross rod is fixedly installed between the two vertical rods, a scanner is fixedly installed at the bottom of the cross rod, a translation assembly is arranged on the inner wall of the detection base, and the translation assembly is arranged on the inner wall of the detection base. And an extrusion assembly is arranged on the outer wall of the translation assembly, a driving assembly is arranged on the outer side of the detection base, and a feeding assembly and a discharging assembly are arranged on the two sides of the detection base correspondingly. Through the structures of the detection seat, the translation assembly, the extrusion assembly and the like, when new shaft material parts are detected, automatic feeding, automatic detection and automatic discharging are achieved, the detection stagnation time is shortened, the new shaft material parts can be circularly detected, the equipment continuously runs through a circular operation mode, more parts can be processed within unit time, and the detection efficiency is improved. And the detection efficiency of the device is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of new material detection, and specifically relates to an optical detection device for surface defects. Background Art

[0002] New materials refer to newly developed or developing structural materials with excellent properties and functional materials with special properties; structural materials mainly utilize their mechanical properties such as strength, toughness, hardness, elasticity, etc., such as new ceramic materials, amorphous alloys (metallic glasses), etc.; functional materials mainly utilize their functions and physical effects such as electricity, light, sound, magnetism, heat, etc.; the new materials studied and developed in the world mainly include new metal materials, fine ceramics, optical fibers, etc. After some new materials are produced, it is often necessary to detect their surface defects to screen out defective products, which requires the use of an optical detection device for surface defects.

[0003] An optical detection device for surface defects is a device that uses optical principles to detect surface defects of an object. It mainly obtains the surface image of the object through optical imaging technology and analyzes the image using image processing algorithms to identify and locate surface defects of new materials.

[0004] A Chinese patent with the publication number CN207407835U discloses a device for detecting the surface roughness of a shaft-shaped new material part, which can quickly detect the surface roughness of the shaft-shaped new material part with high measurement accuracy, not only improving the detection efficiency of the part, but also ensuring the subsequent assembly requirements of the part.

[0005] Currently, in the prior art, when detecting surface defects of a shaft-shaped new material part, it is necessary to use a fixed fixture to fix the shaft-shaped new material part, and then drive the fixed fixture through a driving component to rotate the part, so as to detect the outer circumferential surface of the part. This method requires repeated operation of the fixture to fix the part during the detection work, which affects the detection efficiency of the shaft-shaped new material part.

[0006] Therefore, the present invention provides an optical detection device for surface defects. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0008] The technical solution adopted by the present invention to solve its technical problems is as follows: An optical detection device for surface defects of the present invention includes a detection base. Vertical rods are provided on both the front and back of the detection base. A cross bar is fixedly installed between the two vertical rods. A scanner is fixedly installed at the bottom of the cross bar. A translation component is provided on the inner wall of the detection base. An extrusion component is provided on the outer wall of the translation component. A driving component is provided on the outside of the detection base. A feeding component and a discharging component are respectively provided on both sides of the detection base.

[0009] Preferably, the translation component includes a guiding plate which is slidably installed on the inner wall of the detection base. A plurality of sliding rods are fixedly installed on the inner wall of the detection base. The outer walls of the sliding rods are all slidably connected to the inner wall of the guiding plate. A plurality of reset elastic members are fixedly installed between the inner wall of the detection base and the outer wall of the guiding plate. The plurality of reset elastic members are respectively sleeved on the outside of the sliding rods.

[0010] Preferably, the extrusion component includes translation plates. The number of the translation plates is two and they are symmetrically and fixedly installed on the outer wall of the guiding plate. The outer wall of the translation plates is slidably connected to the inner wall of the detection base. The two vertical rods are respectively fixedly installed on the outer wall of the translation plates. Force-bearing rollers are rotatably installed at one end of the two translation plates away from each other. Extrusion rings are provided on both the front and back of the detection base. The two force-bearing rollers are respectively located inside the two extrusion rings.

[0011] Preferably, the driving component includes support frames. The number of the support frames is two and they are symmetrically arranged on one side of the two extrusion rings away from each other. The two extrusion rings are respectively fixedly installed on the outer wall of the support frames. A rotating shaft is rotatably installed between the two support frames. The detection base is fixedly installed on the outer wall of the rotating shaft. A driving motor is fixedly installed on the outer wall of one of the support frames. The output end of the driving motor is fixedly connected to one end of the rotating shaft.

[0012] Preferably, the feeding component includes a guiding plate which is fixedly installed on one side of the detection base. A hook plate is fixedly installed on the outer wall of the guiding plate. A support seat A is provided on one side of the detection base close to the hook plate. A material-taking seat is fixedly installed on the top of the support seat A. A material-taking opening is provided at the bottom of the material-taking seat.

[0013] Preferably, the discharging component includes a support seat B which is located on one side of the detection base away from the support seat A. A discharging plate is fixedly installed on the top of the support seat B. A notch is provided on one side of the discharging plate close to the detection base. A material-sliding seat is fixedly installed on the vertical section of the detection base.

[0014] Preferably, a regulating shaft is rotatably installed on the inner wall of the extrusion ring, an extrusion block is rotatably installed on the outer wall of the regulating shaft, the outer wall of the extrusion block is slidably connected to the inner wall of the extrusion ring, an adjusting assembly is arranged on the top of the extrusion ring, and a separating assembly is arranged inside the material sliding seat.

[0015] Preferably, the adjusting assembly includes a mounting plate fixedly installed on the top of the extrusion ring. Hinged parts are fixedly installed on the horizontal section of the mounting plate and the outer wall of the extrusion block respectively, and an automatic telescopic rod is fixedly installed between the two hinged parts.

[0016] Preferably, the separating assembly includes a material guiding groove formed at the bottom of the material sliding seat. A torsion spring shaft is fixedly installed on the inner wall of the material sliding seat, a baffle is fixedly installed on the outer wall of the torsion spring shaft, the baffle is engaged with the material sliding seat through the torsion spring shaft, and a defective product collection box is arranged on one side of the support seat B close to the detection seat.

[0017] Preferably, a base is arranged below the detection seat. The support frame, the support seat A and the support seat B are all fixedly installed on the top of the base, and the defective product collection box is slidably installed on the top of the base.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. For the surface defect optical detection device of the present invention, through structures such as the detection seat, the translation assembly and the extrusion assembly, during the detection work of new material parts of shafts, automatic feeding, automatic detection and automatic discharging are realized, the detection stagnation time is reduced, the new material parts of shafts can be circularly detected, and the circular operation mode enables the device to continuously operate, more parts can be processed per unit time, and the time consumed by repeatedly fixing the new material parts of shafts through fixed jigs is reduced, effectively improving the detection efficiency of the device.

[0020] 2. For the surface defect optical detection device of the present invention, when defects are detected on the surface of the parts, the extrusion block will rotate to the inside of the extrusion ring, making the minimum linear distance between the force-bearing roller and the axis of the detection seat smaller, so that the final position where the guide plate drives the parts to move changes. Then, through the separating assembly, the defective parts can be automatically selected, achieving the effect of automatic transfer of defective products and increasing the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings.

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 is a structural schematic diagram of the support frame of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the detection seat of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the material sliding seat of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the guide plate of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the material taking seat of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the extrusion ring of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the extrusion block of the present invention;

[0030] Figure 9 It is a cross-sectional view of the structure of the material sliding seat of the present invention;

[0031] In the figure: 1, detection seat; 2, vertical rod; 3, horizontal rod; 4, scanner; 5, guide plate; 6, sliding rod; 7, reset elastic member; 8, translation plate; 9, stress roller; 10, extrusion ring; 11, support frame; 12, rotating shaft; 13, drive motor; 14, material guiding plate; 15, hook plate; 16, support seat A; 17, material taking seat; 18, material taking port; 19, support seat B; 20, blanking plate; 21, material sliding seat; 22, adjusting shaft; 23, extrusion block; 24, mounting plate; 25, hinge member; 26, automatic telescopic rod; 27, material guiding groove; 28, torsion spring shaft; 29, baffle; 30, base; 31, defective product collection box. Specific embodiments

[0032] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0033] Such as Figures 1 to 6As shown in the figure, an optical surface defect detection device according to an embodiment of the present invention includes a detection base 1. Vertical rods 2 are provided on both the front and back of the detection base 1. A cross bar 3 is fixedly installed between the two vertical rods 2. A scanner 4 is fixedly installed at the bottom of the cross bar 3. A translation component is provided on the inner wall of the detection base 1. An extrusion component is provided on the outer wall of the translation component. A drive component is provided on the outside of the detection base 1. A loading component and an unloading component are respectively provided on both sides of the detection base 1. After the device is started, the drive component will drive the detection base 1 to rotate at a constant speed. During the rotation of the detection base 1, the loading component automatically moves the new shaft-shaped material parts to be detected above the detection base 1. Then, under the action of the extrusion component, the translation component will be translated. When the translation component is translated, the detection base 1 will be in an inclined state. At this time, the new shaft-shaped material parts located on the detection base will move along with the translation component. When the new shaft-shaped material parts move, because their rolling friction is less than the sliding friction, the new shaft-shaped material parts will roll at a constant speed. When the translation component is translated, the vertical rods 2 will drive the scanner 4 to move along with the new shaft-shaped material parts through the cross bar 3 under the action of the extrusion component, so as to detect the surface defects of the new shaft-shaped material parts. When the new shaft-shaped material parts are completed with detection, along with the rotation of the detection base 1, the detection base 1 will cooperate with the unloading component to complete the unloading of the new shaft-shaped material parts. After the unloading is completed, the detection base 1 will be loaded again through the loading component, so as to realize repeated detection. In summary, this device realizes automatic loading, automatic detection, and automatic unloading, reduces the detection stagnation time, can perform cyclic detection on the new shaft-shaped material parts, and the cyclic operation mode enables the equipment to continuously run, and more parts can be processed per unit time, reducing the time consumed by repeatedly fixing the new shaft-shaped material parts through fixed jigs, effectively improving the detection efficiency of the device.

[0034] As Figures 1 to 5 shown, the translation component includes a guide plate 5. The guide plate 5 is slidably installed on the inner wall of the detection base 1. A plurality of sliding rods 6 are fixedly installed on the inner wall of the detection base 1. The outer walls of the sliding rods 6 are all slidably connected to the inner wall of the guide plate 5. A plurality of reset elastic members 7 are fixedly installed between the inner wall of the detection base 1 and the outer wall of the guide plate 5. The plurality of reset elastic members 7 are respectively sleeved on the outside of the sliding rods 6. By driving the detection base 1 to rotate at a constant speed through the drive component, the loading component will move the parts to the horizontal section of the detection base 1. Since the detection base 1 rotates, its horizontal section will be inclined. Therefore, the parts located on the detection base 1 will remain in contact with the guide plate 5 under the action of gravity. As the detection base 1 rotates, the extrusion component will cause the guide plate 5 to move along the sliding rods 6. In order to remain in contact with the guide plate 5, the parts will move along with the guide plate 5. Because the rolling friction is less than the sliding friction, the parts will roll at a constant speed when moving, so as to be able to comprehensively detect the outer circumferential surface of the parts.

[0035] As Figures 4 to 5As shown, the extrusion assembly includes a translation plate 8. The number of translation plates 8 is two, and they are symmetrically and fixedly installed on the outer wall of the guide plate 5. The outer wall of the translation plate 8 is slidably connected to the inner wall of the detection seat 1. Two vertical rods 2 are respectively fixedly installed on the outer wall of the translation plate 8. Force rollers 9 are rotatably installed at one end of the two translation plates 8 away from each other. Extrusion rings 10 are provided on the front and back of the detection seat 1. The two force rollers 9 are respectively located inside the two extrusion rings 10; when the detection plate 1 rotates, the force rollers 9 will rotate accordingly. Since the force rollers 9 are located inside the extrusion rings 10, when the force rollers 9 rotate, they will contact and be squeezed by the extrusion rings 10. The inner shape of the extrusion ring 10 is in the shape of a water droplet. Therefore, when the force roller 9 rotates one week, the straight-line distance between it and the axis of the detection seat 1 will first become smaller, then remain unchanged, and finally become larger and reset. When the force roller 9 moves under the action of the extrusion ring 10, it will drive the guide plate 5 to move through the translation plate 8. When the feeding is completed, the force roller 9 will be squeezed by the extrusion ring 10, and the distance between the force roller 9 and the axis of the detection seat 1 will become smaller, so that the guide plate 5 slides along the slide rod 6 to achieve the effect of guiding the parts to roll. When the translation plate 8 moves, it will drive the vertical rod 2 to move. When the vertical rod 2 moves, it will drive the scanner 4 to move through the cross bar 3. The relative position between the scanner 4 and the part remains unchanged, so as to detect the surface of the part.

[0036] As Figures 1 to 3 shown, the drive assembly includes a support frame 11. The number of support frames 11 is two, and they are symmetrically arranged on one side of the two extrusion rings 10 away from each other. The two extrusion rings 10 are respectively fixedly installed on the outer wall of the support frame 11. A rotating shaft 12 is rotatably installed between the two support frames 11. The detection seat 1 is fixedly installed on the outer wall of the rotating shaft 12. A drive motor 13 is fixedly installed on the outer wall of one of the support frames 11. The output end of the drive motor 13 is fixedly connected to one end of the rotating shaft 12; the support frame 11 supports the detection seat 1 through the rotating shaft 12 to keep the detection seat 1 in a proper position. Start the drive motor 13, and the drive motor 13 will drive the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, it will drive the detection seat 1 to rotate, so as to provide power for the operation of the device.

[0037] As Figures 3 to 4 and Figure 6As shown, the loading component includes a material guiding plate 14, which is fixedly installed on one side of the detection base 1. A hook plate 15 is fixedly installed on the outer wall of the material guiding plate 14. A support base A16 is arranged on one side of the detection base 1 close to the hook plate 15. A material taking base 17 is fixedly installed on the top of the support base A16. A material taking opening 18 is formed at the bottom of the material taking base 17. Place the parts to be detected inside the material taking base 17. Since the material taking base 17 is in an inclined state, the parts will slide towards the side close to the hook plate 15 under the action of their own gravity. When the detection base 1 rotates, the detection base 1 will drive the hook plate 15 to rotate through the material guiding plate 14. When the hook plate 15 rotates, it will pass through the material taking opening 18 to lift the lowest part. At the same time, due to the rotation of the detection base 1, the material guiding plate 14 and the hook plate 15 will be inclined, and the parts will slide off the hook plate 15 and move to the detection base 1 through the material guiding plate 14, thus achieving the effect of automatic loading.

[0038] As Figure 1 As shown, the unloading component includes a support base B19, which is located on the side of the detection base 1 away from the support base A16. A blanking plate 20 is fixedly installed on the top of the support base B19. A notch is formed on the side of the blanking plate 20 close to the detection base 1. A material sliding base 21 is fixedly installed on the vertical section of the detection base 1. When the device completes the detection work, with the rotation of the detection base 1, the parts will slide from the guiding plate 5 to the side of the detection base 1 where the material sliding base 21 is installed. Then the parts will continue to slide down along the detection base 1 to the blanking plate 20, and finally complete the unloading through the inclined blanking plate 20, achieving the effect of automatic unloading. When the stress roller 9 moves to the minimum linear distance from the axis of the detection base 1, the side of the guiding plate 5 close to the parts will be aligned with the material sliding base 21. Therefore, when the parts slide off the guiding plate 5, they will slide along the material sliding base 21 to the other side of the detection base 1, preventing the parts from directly falling from the guiding plate 5 and causing damage, and playing a role in protecting the parts.

[0039] As Figures 7 to 9As shown, a regulating shaft 22 is rotatably installed on the inner wall of the extrusion ring 10. An extrusion block 23 is rotatably installed on the outer wall of the regulating shaft 22. The outer wall of the extrusion block 23 is slidably connected to the inner wall of the extrusion ring 10. A regulating assembly is arranged at the top of the extrusion ring 10, and a separating assembly is arranged inside the material sliding seat 21. During the detection process of the device, when a defect is detected on the surface of the part, the control system will cause the regulating assembly to push the extrusion block 23. The extrusion block 23 will rotate towards the inner side of the extrusion ring 10 around the regulating shaft 22. Since the extrusion block 23 rotates to the inner side of the extrusion ring 10, when the force-bearing roller 9 rotates on the inner side of the extrusion ring 10, it will be squeezed by the extrusion block 23. Under the action of the extrusion block 23, the minimum linear distance between the force-bearing roller 9 and the axis of the detection seat 1 becomes smaller, so that the final position where the guiding plate 5 drives the part to move changes. Then, the problematic parts can be automatically selected through the separating assembly, achieving the effect of automatic transfer of defective products and increasing the convenience of the device.

[0040] As Figures 7 to 8 shown, the regulating assembly includes a mounting plate 24. The mounting plate 24 is fixedly installed at the top of the extrusion ring 10. Hinged parts 25 are fixedly installed on both the horizontal section of the mounting plate 24 and the outer wall of the extrusion block 23. An automatic telescopic rod 26 is fixedly installed between the two hinged parts 25. When defective products are detected, the control system will cause the automatic telescopic rod 26 to extend. After the automatic telescopic rod 26 extends, it will push the extrusion block 23 to rotate around the regulating shaft 22 to the inner side of the extrusion ring 10, achieving the effect of automatically adjusting the position of the extrusion block 23.

[0041] As Figure 9 shown, the separating assembly includes a material guiding groove 27 opened at the bottom of the material sliding seat 21. A torsion spring shaft 28 is fixedly installed on the inner wall of the material sliding seat 21. A baffle 29 is fixedly installed on the outer wall of the torsion spring shaft 28. The baffle 29 is engaged with the material sliding seat 21 through the torsion spring shaft 28. A defective product collection box 31 is arranged on one side of the support seat B19 close to the detection seat 1. When it is detected that the part has no quality problem, when the force-bearing roller 9 moves to the minimum linear distance from the axis of the detection seat 1, it will align the side of the guiding plate 5 close to the part with the material sliding seat 21 to achieve automatic blanking. When it is detected that the part has a quality defect, the control system causes the extrusion block 23 to rotate, so that the minimum linear distance between the force-bearing roller 9 and the axis of the detection seat 1 becomes smaller. Therefore, the side of the guiding plate 5 close to the part will move to align with the material inlet of the material guiding groove 27. As the detection seat 1 rotates, the defective parts will enter the inside of the material guiding groove 27. When the baffle 29 rotates downward, the parts will push open the baffle 29 under the action of their own gravity and fall from the inside of the material guiding groove 27. The fallen parts will enter the inside of the defective product collection box 31 for separate collection, thus achieving the effect of transferring defective products.

[0042] As Figure 1As shown in the figure, a base 30 is provided below the detection seat 1. The support frame 11, the support seat A 16 and the support seat B 19 are all fixedly installed on the top of the base 30. The defective product collection box 31 is slidably installed on the top of the base 30. The base 30 supports the entire device to ensure the overall stability of the device. The defective product collection box 31 can slide out from the base 30, facilitating the transfer of defective products.

[0043] Working principle: After the device is started, the drive assembly will drive the detection seat 1 to rotate at a constant speed. During the rotation of the detection seat 1, the feeding assembly automatically moves the new shaft material parts to be detected above the detection seat 1. Then, under the action of the extrusion assembly, the translation assembly will be translated. When the translation assembly is translated, the detection seat 1 will be in an inclined state. At this time, the new shaft material parts on the detection seat will move along with the translation assembly. When the new shaft material parts are moving, since their rolling friction is less than the sliding friction, the new shaft material parts will roll at a constant speed. When the translation assembly is translated, the vertical rod 2 will drive the scanner 4 to move along with the new shaft material parts under the action of the extrusion assembly through the cross bar 3, so as to detect the surface defects of the new shaft material parts. When the new shaft material parts are detected, as the detection seat 1 rotates, the detection seat 1 will cooperate with the feeding and discharging assembly to complete the feeding and discharging of the new shaft material parts. After the feeding and discharging are completed, the detection seat 1 will be fed again through the feeding assembly, thus realizing repeated detection. In summary, this device realizes automatic feeding, automatic detection and automatic feeding and discharging, reduces the detection stagnation time, can perform cyclic detection on the new shaft material parts, and the cyclic operation mode enables the equipment to run continuously, processing more parts per unit time, reducing the time consumed by repeatedly fixing the new shaft material parts through fixed jigs, and effectively improving the detection efficiency of the device.

[0044] The detection seat 1 is rotated at a constant speed by the driving component. The feeding component will move the parts to the horizontal section of the detection seat 1. Since the horizontal section of the detection seat 1 is inclined due to rotation, the parts located on the detection seat 1 will remain in contact with the guiding plate 5 under the action of gravity. As the detection seat 1 rotates, the pressing component will cause the guiding plate 5 to move along the sliding rod 6. In order to remain in contact with the guiding plate 5, the parts will move along with the guiding plate 5. Since the rolling friction is less than the sliding friction, the parts will roll at a constant speed when moving, so that the outer circumferential surface of the parts can be comprehensively detected. When the detection plate 1 rotates, the force-bearing roller 9 will rotate along with it. Since the force-bearing roller 9 is located inside the pressing ring 10, it will contact and be pressed by the pressing ring 10 when rotating. The inner shape of the pressing ring 10 is in the shape of a water droplet. Therefore, when the force-bearing roller 9 rotates one week, the straight-line distance between it and the axis of the detection seat 1 will first become smaller, then remain unchanged, and finally become larger and return to the original position. When the force-bearing roller 9 moves under the action of the pressing ring 10, it will drive the guiding plate 5 to move through the translation plate 8. When the feeding is completed, the force-bearing roller 9 will be pressed by the pressing ring 10, and the distance between the force-bearing roller 9 and the axis of the detection seat 1 will become smaller, so that the guiding plate 5 slides along the sliding rod 6, realizing the effect of guiding the parts to roll. When the translation plate 8 moves, it will drive the vertical rod 2 to move. When the vertical rod 2 moves, it will drive the scanner 4 to move through the cross bar 3. The relative position between the scanner 4 and the parts remains unchanged, so as to detect the surface of the parts. The support frame 11 supports the detection seat 1 through the rotating shaft 12, so that the detection seat 1 is kept in a proper position. The driving motor 13 is started, and the driving motor 13 will drive the rotating shaft 12 to rotate. When the rotating shaft 12 rotates, it will drive the detection seat 1 to rotate, thus providing power for the operation of the device.

[0045] Place the parts to be detected inside the material taking seat 17. Since the material taking seat 17 is in an inclined state, the parts will slide towards the side close to the hook plate 15 under the action of their own gravity. When the detection seat 1 rotates, the detection seat 1 will drive the hook plate 15 to rotate through the material guiding plate 14. When the hook plate 15 rotates, it will pass through the material taking opening 18 to lift the lowest part. At the same time, due to the rotation of the detection seat 1, the material guiding plate 14 and the hook plate 15 will be inclined, and the parts will slide off the hook plate 15 and move to the detection seat 1 through the material guiding plate 14, thus achieving the effect of automatic feeding. When the device completes the detection work, with the rotation of the detection seat 1, the parts will slide from the guiding plate 5 to the side of the detection seat 1 where the sliding material seat 21 is installed. Then the parts will continue to slide along the detection seat 1 to the blanking plate 20, and finally complete blanking through the inclined blanking plate 20, realizing the effect of automatic blanking. When the stress roller 9 moves to the minimum linear distance from the axis of the detection seat 1, the side of the guiding plate 5 close to the parts will be aligned with the sliding material seat 21. Therefore, when the parts slide from the guiding plate 5, they will slide along the sliding material seat 21 to the other side of the detection seat 1, preventing the parts from directly falling from the guiding plate 5 and causing damage, and playing a role in protecting the parts.

[0046] During the detection work of the device, when defects are detected on the surface of the parts, the control system will cause the adjustment component to push the extrusion block 23, and the extrusion block 23 will rotate towards the inside of the extrusion ring 10 around the adjustment shaft 22. Since the extrusion block 23 rotates to the inside of the extrusion ring 10, when the stress roller 9 rotates inside the extrusion ring 10, it will be squeezed by the extrusion block 23. Under the action of the extrusion block 23, the minimum linear distance between the stress roller 9 and the axis of the detection seat 1 becomes smaller, so that the final position where the guiding plate 5 drives the parts to move changes. Then, through the separation component, the defective parts can be automatically selected, achieving the effect of automatic transfer of defective products and increasing the convenience of the device. When defective products are detected, the control system will cause the automatic telescopic rod 26 to extend. After the automatic telescopic rod 26 extends, it will push the extrusion block 23 to rotate around the adjustment shaft 22 to the inside of the extrusion ring 10, achieving the effect of automatically adjusting the position of the extrusion block 23. When it is detected that the quality of the parts is okay, the stress roller 9 moves to the minimum linear distance from the axis of the detection seat 1, which will align the side of the guiding plate 5 close to the parts with the sliding material seat 21 to achieve automatic blanking. When it is detected that the quality of the parts is defective, the control system causes the extrusion block 23 to rotate, so that the minimum linear distance between the stress roller 9 and the axis of the detection seat 1 becomes smaller. Therefore, the side of the guiding plate 5 close to the parts will move to align with the material inlet of the material guiding groove 27. With the rotation of the detection seat 1, the defective parts will enter the inside of the material guiding groove 27. When the baffle 29 rotates downwards, the parts will push open the baffle 29 under the action of their own gravity and fall from the inside of the material guiding groove 27. The fallen parts will enter the inside of the defective product collection box 31 for separate collection, thus realizing the effect of defective product transfer.

[0047] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An optical detection device for surface defects, comprising a detection base, characterized in that: Vertical rods are provided on both the front and back of the detection base. A crossbar is fixedly installed between the two vertical rods. A scanner is fixedly installed at the bottom of the crossbar. A translation assembly is provided on the inner wall of the detection base. An extrusion assembly is provided on the outer wall of the translation assembly. A drive assembly is provided on the outside of the detection base. A feeding assembly and a discharging assembly are respectively provided on both sides of the detection base.

2. An optical surface defect detection device according to claim 1, characterized in that: The translation assembly includes a guiding plate which is slidably installed on the inner wall of the detection base. A plurality of sliding rods are fixedly installed on the inner wall of the detection base. The outer walls of the sliding rods are all slidably connected to the inner wall of the guiding plate. A plurality of reset elastic members are fixedly installed between the inner wall of the detection base and the outer wall of the guiding plate. The plurality of reset elastic members are respectively sleeved on the outside of the sliding rods.

3. An optical surface defect detection device according to claim 2, characterized in that: The extrusion assembly includes translation plates. The number of the translation plates is two and they are symmetrically and fixedly installed on the outer wall of the guiding plate. The outer wall of the translation plates is slidably connected to the inner wall of the detection base. The two vertical rods are respectively fixedly installed on the outer wall of the translation plates. Force rollers are rotatably installed at one end of the two translation plates away from each other. Extrusion rings are provided on both the front and back of the detection base. The two force rollers are respectively located inside the two extrusion rings.

4. An optical surface defect detection device according to claim 3, characterized in that: The drive assembly includes support frames. The number of the support frames is two and they are symmetrically arranged on one side of the two extrusion rings away from each other. The two extrusion rings are respectively fixedly installed on the outer wall of the support frames. A rotating shaft is rotatably installed between the two support frames. The detection base is fixedly installed on the outer wall of the rotating shaft. A drive motor is fixedly installed on the outer wall of one of the support frames. The output end of the drive motor is fixedly connected to one end of the rotating shaft.

5. An optical surface defect detection device according to claim 4, characterized in that: The feeding assembly includes a guiding plate which is fixedly installed on one side of the detection base. A hook plate is fixedly installed on the outer wall of the guiding plate. A support seat A is provided on one side of the detection base close to the hook plate. A material taking seat is fixedly installed on the top of the support seat A. A material taking opening is provided at the bottom of the material taking seat.

6. The optical detection device for surface defects according to claim 5, characterized in that: The discharging assembly includes a support seat B which is located on one side of the detection base away from the support seat A. A discharging plate is fixedly installed on the top of the support seat B. A notch is provided on one side of the discharging plate close to the detection base. A material sliding seat is fixedly installed on the vertical section of the detection base.

7. An optical surface defect detection device according to claim 6, characterized in that: An adjusting shaft is rotatably installed on the inner wall of the extrusion ring. An extrusion block is rotatably installed on the outer wall of the adjusting shaft. The outer wall of the extrusion block is slidably connected to the inner wall of the extrusion ring. An adjusting assembly is provided on the top of the extrusion ring. A separating assembly is provided inside the material sliding seat.

8. An optical surface defect detection device according to claim 7, characterized in that: The adjusting assembly includes a mounting plate which is fixedly installed on the top of the extrusion ring. Hinged members are fixedly installed on the horizontal section of the mounting plate and the outer wall of the extrusion block. An automatic telescopic rod is fixedly installed between the two hinged members.

9. An optical surface defect detection device according to claim 8, characterized in that: The separating assembly includes a material guiding groove opened at the bottom of the material sliding seat. A torsion spring shaft is fixedly installed on the inner wall of the material sliding seat. A baffle is fixedly installed on the outer wall of the torsion spring shaft. The baffle is engaged with the material sliding seat through the torsion spring shaft. A defective product collection box is provided on one side of the support seat B close to the detection base.

10. An optical surface defect detection device according to claim 9, characterized in that: A base is provided below the detection seat. The support frame, support seat A, and support seat B are all fixedly installed on the top of the base. The defective product collection box is slidably installed on the top of the base.

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