A metal workpiece appearance quality detection system

Abstract

The application belongs to the technical field of quality detection, and particularly relates to a metal workpiece appearance quality detection system, which comprises a conveying belt and a detection platform; further comprises a hanger, the top of the hanger is rotationally connected to the conveying belt, a clamp is installed at the bottom of the hanger, a driving ring is sleeved on the hanger, and a driving strip is arranged on the sidewall of the conveying belt; a rotating motor drives the cotton ring to rotate through a rotating shaft, the cotton ring wipes the surfaces on both sides of the workpiece in the reverse direction, and the impurities that cannot be shaken off are wiped off, so that the cleanliness of the surface of the workpiece is improved, and the detection accuracy of the workpiece is improved; and if there are burrs and other defects on the workpiece, the burrs will hook the cotton ring that is brushed in the reverse direction, the cotton filament on the cotton ring will be hooked and retained on the surface of the workpiece, the position of the burrs is highlighted by the hooked cotton filament, the detection accuracy of the workpiece is improved, the situation that the burrs are too small and the like leads to missed detection and the like is avoided, the missed detection rate is reduced, and the detection precision is improved.

Description

Technical Field

[0001] This invention belongs to the field of quality inspection technology, specifically a metal processing part appearance quality inspection system. Background Technology

[0002] As the consumer electronics market continues to demand higher standards for product aesthetics, texture, and durability, the casings of electronic products such as laptops and mobile phones are gradually shifting from plastic to metal materials such as aluminum alloy, magnesium alloy, and stainless steel. Metal casings, with their superior structural strength, heat dissipation performance, and visual appeal, have become the mainstream choice for mid-to-high-end laptops. However, during the processing and subsequent treatment of metal casings, various quality defects are prone to occur due to material characteristics, process precision, and environmental factors. Most factories use quality inspection systems that include visual inspection equipment, dimensional accuracy equipment, and surface roughness testers.

[0003] However, during mass production testing, defects such as burrs and bumps, due to their small diameter and volume, are not easily detected or are missed, affecting the accuracy of appearance quality inspection. Furthermore, metal casings and processed parts can become contaminated with dust during transport or movement. Dust particles adhering to the casing surface can be misjudged by visual equipment as pinholes or spots, causing qualified products to be mistakenly identified as defective. Moreover, dust and oil accumulation in corners and grooves can obscure minor scratches, which the inspection system cannot identify or can identify inaccurately, resulting in defective products flowing downstream. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a metal processing part appearance quality inspection system.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a metal processing part appearance quality inspection system, including a conveyor belt and an inspection platform; it also includes:

[0006] The bracket has its top rotatably connected to the conveyor belt, and a clamp is installed at the bottom of the bracket. A drive ring is fitted on the bracket, and a drive bar is provided on the side wall of the conveyor belt. A locking block is slidably connected to the conveyor belt by a spring. The bottom of the locking block contacts the top of the drive bar, and one side of the locking block engages with the drive ring. A sliding frame is connected to the side wall of the conveyor belt by an electric telescopic rod. A sliding rod is slidably connected to the sliding frame by a spring, and a pressure sensor is provided between the two.

[0007] A fixed shaft is located on one side of the sliding rod. The fixed shaft is sleeved and rotatably connected to a rotating shaft. A cotton ring is provided on the outer ring of the rotating shaft. The outer circumference of the cotton ring contacts the surface of the workpiece fixed by the fixture. A rotating motor is installed on the sliding rod and connected to the rotating shaft. The sliding rod is located on one side of the detection platform.

[0008] The cleaning box is located on one side of the sliding rod and is connected to the pump installed in the conveyor belt. The inner wall of one side of the cleaning box contacts the cotton ring. An air jet groove is provided on the outer periphery of the fixed shaft and is aligned with the opening of the cleaning box.

[0009] Preferably, a swing frame is rotatably connected to the side of the sliding rod away from the cleaning box. The swing frame is connected to a swing motor mounted on the sliding rod. The swing frame is provided with a grinding rod, which is divided into a horizontal grinding rod and a vertical grinding rod. A vertical grinding rod is rotatably connected to one side of the swing frame. The vertical grinding rod is connected to a vertical grinding motor mounted on the swing frame. A spring rod is slidably connected to the side wall of the conveyor belt via a spring. The spring rod slides obliquely upward. A grinding block is provided at one end of the spring rod. The bottom side of the swing frame contacts the grinding block. A horizontal grinding rod is rotatably connected to one end of the grinding block. The horizontal grinding rod is connected to a horizontal grinding motor on the grinding block. A camera assembly is provided between the sliding rod and the grinding rod.

[0010] Preferably, the swing frame is provided with a grinding frame, the opening of the grinding frame is close to the grinding rod, and the interior of the grinding frame is connected to the pump.

[0011] Preferably, a grinding shaft is rotatably connected to one side wall of the grinding frame, the grinding shaft stores grinding fluid inside, and the grinding shaft has evenly distributed leakage holes.

[0012] Preferably, a vibrating block is slidably connected to the grinding frame via a spring, and a vibrating toothed ring is provided at the end of the grinding rod, with the vibrating block contacting the vibrating toothed ring.

[0013] Preferably, the edge of the grinding vertical rod is bent outward, and the edge of the grinding horizontal rod is bent inward; the outer circumference of the grinding rod is uniformly provided with grooves.

[0014] Preferably, the groove is provided with a scraper, which is made of wear-resistant plastic.

[0015] Preferably, a sliding rod is slidably connected to the groove by a spring, and a scraper is fixed to one side of the sliding rod, with one side of the scraper extending out of the groove and located outside the surface of the grinding rod.

[0016] Preferably, the scraper blade has hooks evenly distributed on one side extending out of the groove.

[0017] Preferably, the cleaning box has nozzles distributed on the side away from the sliding rod, and the nozzles are connected to the steam cleaner, with the nozzles facing the grinding rod on one side.

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

[0019] 1. The metal processing part appearance quality inspection system of the present invention, when in contact with the drive ring, causes it to rotate slowly due to friction and other effects. The drive ring moves the processing part through the bracket while slowly rotating past the inspection platform. The inspection platform completes the inspection of the slowly rotating processing part, which can comprehensively observe the edges and corners of the processing part, identify tiny burrs that are obscured during fixed inspection, improve inspection accuracy, and capture the reflection changes at each position of the processing part through the vision camera in the inspection platform, which can identify subtle color differences in concave and arc-shaped areas. These defects are easily missed in the fixed state due to the angle of light reflection, affecting the consistency of product appearance.

[0020] 2. The metal processing part appearance quality inspection system of the present invention uses a rotating electric motor to drive a cotton ring to rotate via a rotating shaft. The cotton ring rubs against both sides of the processing part in the opposite direction, removing impurities that cannot be shaken off, improving the cleanliness of the processing part surface, thereby improving the inspection accuracy of the processing part. Furthermore, if there are defects such as burrs on the processing part, the burrs will hook onto the cotton ring that is brushing in the opposite direction, trapping the cotton fibers on the cotton ring on the surface of the processing part. The hooked cotton fibers highlight the location of the burrs, improving the inspection accuracy of the processing part and avoiding situations where the burrs are too small, which may lead to missed detections, thus reducing the missed detection rate and improving the inspection precision. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a frontal internal schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the hanger passing through the drive bar;

[0024] Figure 3 This is a schematic diagram of the grinding process of the workpiece;

[0025] Figure 4 This is a top-view diagram of the workpiece being ground on one side.

[0026] Figure 5 This is a top-view diagram of the workpiece during the grinding process on both sides.

[0027] Figure 6 yes Figure 5 A 3D view of the polishing frame on one side;

[0028] Figure 7 This is an internal diagram of a fixed shaft;

[0029] Figure 8 This is a cross-sectional view of the cleaning box from a top-down perspective;

[0030] Figure 9 This is a schematic diagram of the grinding vertical rod rotating;

[0031] Figure 10 This is a schematic diagram of the grinding crossbar rotating.

[0032] In the diagram: 1. Conveyor belt; 11. Detection platform; 12. Hanger; 13. Clamp; 14. Drive ring; 15. Drive bar; 16. Locking block; 17. Electric telescopic rod; 18. Sliding frame; 19. Sliding rod; 2. Fixed shaft; 21. Rotating shaft; 22. Cotton ring; 23. Rotating motor; 24. Cleaning box; 25. Air jet; 26. Swing frame; 27. Swing motor; 28. Grinding horizontal bar; 29. ​​Grinding vertical bar; 30. Vertical grinding motor; 31. Spring rod; 32. Grinding block; 33. Horizontal grinding motor; 34. Camera assembly; 35. Grinding frame; 36. Grinding shaft; 37. Leakage hole; 38. Vibrating block; 39. Vibrating toothed ring; 4. Groove; 41. Scraper; 42. Sliding rod; 43. Hook; 44. Nozzle. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] To effectively solve the above problems, see the attached diagram in the instruction manual. Figure 1-10 As shown, a metal processing part appearance quality inspection system includes a conveyor belt 1 and an inspection platform 11; it also includes:

[0036] A bracket 12 is rotatably connected to the conveyor belt 1 at its top. A clamp 13 is installed at the bottom of the bracket 12. A drive ring 14 is fitted on the bracket 12. A drive bar 15 is provided on the side wall of the conveyor belt 1. A locking block 16 is slidably connected to the conveyor belt 1 by a spring. The bottom of the locking block 16 contacts the top of the drive bar 15, and one side of the locking block 16 engages with the drive ring 14. A sliding frame 18 is connected to the side wall of the conveyor belt 1 by an electric telescopic rod 17. A sliding rod 19 is slidably connected to the sliding frame 18 by a spring, and a pressure sensor is provided between the two.

[0037] A fixed shaft 2 is located on one side of the sliding rod 19. A rotating shaft 21 is sleeved on and rotatably connected to the fixed shaft 2. A cotton ring 22 is provided on the outer ring of the rotating shaft 21. The outer periphery of the cotton ring 22 contacts the surface of the workpiece fixed by the clamp 13. A rotating motor 23 is installed on the sliding rod 19 and connected to the rotating shaft 21. The sliding rod 19 is located on one side of the detection platform 11.

[0038] The cleaning box 24 is located on one side of the sliding rod 19. The cleaning box 24 is connected to the pump configured in the conveyor belt 1. The inner wall of one side of the cleaning box 24 contacts the cotton ring 22. The fixed shaft 2 has an air jet groove 25 on its outer periphery, and the air jet groove 25 is aligned with the opening of the cleaning box 24.

[0039] The conveyor belt 1 is a conventional suspended conveyor; the inspection platform 11 is used to inspect the quality of metal processing parts; the clamp 13 is used to hold the suspended processing parts, for example, by using a vacuum suction cup or gripper to fix the processing parts and prevent them from shaking while reducing the contact area; the cotton ring 22 is a cotton tube formed by conventional cotton threads intertwined together; the pump is a conventional device with suction and air jet functions.

[0040] Specific workflow: The worker uses clamp 13 to vertically fix the workpiece to the bottom of the hanger 12. The conveyor belt 1 drives the drive ring 14 to move closer to the drive bar 15 through the hanger 12. The drive bar 15 presses against the inclined surface at the bottom of the locking block 16, causing the locking block 16 to be squeezed up and released from the drive ring 14. After the drive ring 14 is no longer locked by the locking block 16, the drive ring 14 comes into contact with the drive bar 15, for example, through friction or by meshing, causing the drive ring 14 to rotate. The drive ring 14 drives the hanger 12 to rotate, and the hanger 12 drives the workpiece to rotate through clamp 13. The rotation of the workpiece generates centrifugal force, which throws away dust and other impurities on the workpiece. Impurities on the workpiece are removed without contact, improving the cleanliness of the workpiece during inspection, thereby improving the inspection accuracy.

[0041] Then, the drive ring 14 moves away from the drive bar 15, and the locking block 16 is lowered and reset by the spring, locking the drive ring 14 again. The fixed bracket 12 and the workpiece do not rotate, and the workpiece passes through the inspection platform 11 in a fixed state to complete the appearance quality inspection of the workpiece. In addition, the worker can also choose to install another type of drive bar 15, which rotates slowly due to friction when in contact with the drive ring 14. The drive ring 14 moves the workpiece through the bracket 12 and rotates slowly as it passes through the inspection platform 11. The inspection platform 11 completes the inspection of the slowly rotating workpiece, which can fully observe the edges and corners of the workpiece, identify the tiny burrs that are blocked during the fixed inspection, improve the inspection accuracy, and capture the reflection changes at each position of the workpiece through the vision camera in the inspection platform 11. It can identify the subtle color differences in the recessed and curved areas. These defects are easily missed in the fixed state due to the angle of light reflection, which affects the consistency of the product appearance.

[0042] Before the workpiece passes through the inspection platform 11, the worker activates the electric telescopic rod 17 to move the sliding frame 18, which in turn moves the sliding rod 19. The sliding rod 19 then moves the rotating shaft 21 via the fixed shaft 2, causing the cotton rings 22 to move closer together. The electric motor then rotates the cotton rings 22 via the rotating shaft 21, causing them to brush against the surfaces of both sides of the workpiece in the opposite direction. This removes impurities that cannot be removed, improving the cleanliness of the workpiece surface and thus increasing the accuracy of the inspection. Furthermore, if there are defects such as burrs on the workpiece, the burrs will hook onto the cotton rings 22 that are brushing in the opposite direction, trapping the cotton fibers on the rings on the workpiece surface. The trapped fibers highlight the location of the burrs, improving the accuracy of the inspection and preventing situations where burrs are too small, leading to missed inspections. This reduces the missed inspection rate and improves the inspection precision.

[0043] Furthermore, when the cotton ring 22 contacts the workpiece, a conventional pressure sensor is installed between the sliding frame 18 and the sliding rod 19 to detect the pressure between them. This allows the worker to set the pressure feedback from the pressure sensor to drive the electric telescopic rod 17 to push the cotton ring 22 against the surface of the workpiece. This ensures sufficient wiping force while avoiding excessive force that could bend or tilt the workpiece, affecting the subsequent inspection results and thus improving the inspection accuracy.

[0044] Furthermore, after the cotton ring 22 rotates and wipes the workpiece, it is scraped by the inner wall of the cleaning box 24. The pump's suction end draws impurities into the cotton ring 22 through the cleaning box 24, and at the same time, it sucks away the impurities that have diffused around after wiping, improving the collection effect of impurities and avoiding excessive dispersion and contamination of impurities, which would affect the detection environment and thus improve the detection accuracy. Moreover, the pump's jet end sprays air into the fixed shaft 2 through the pipe, and the fixed shaft 2 sprays air into the cotton ring 22 from the inside out through the jet groove 25, discharging the impurities adhering to the cotton ring 22 and collecting them through the cleaning box 24, thereby improving the cleanliness of the cotton ring 22 and maintaining its cleaning ability.

[0045] Example 2:

[0046] Based on Embodiment 1, a swing frame 26 is rotatably connected to the side of the sliding rod 19 away from the cleaning box 24. The swing frame 26 is connected to the swing motor 27 installed on the sliding rod 19. A polishing rod is provided on the swing frame 26, which is divided into a polishing horizontal rod 28 and a polishing vertical rod 29. The polishing vertical rod 29 is rotatably connected to one side of the swing frame 26, and the polishing vertical rod 29 is connected to the vertical polishing motor 3 installed on the swing frame 26. A spring rod 31 is slidably connected to the side wall of the conveyor belt 1 by a spring. The spring rod 31 slides obliquely upward. A polishing block 32 is provided at one end of the spring rod 31. The bottom side of the swing frame 26 contacts the polishing block 32. A polishing horizontal rod 28 is rotatably connected to one end of the polishing block 32. The polishing horizontal rod 28 is connected to the horizontal polishing motor 33 on the polishing block 32. A camera assembly 34 is provided between the sliding rod 19 and the polishing rod. The spring rod 31 is a conventional telescopic rod with a built-in spring, for example, a thin tube is slidably connected inside a thick tube, and a spring connects the thick tube and the thin tube.

[0047] The swing frame 26 is provided with a grinding frame 35, the opening of the grinding frame 35 is close to the grinding rod, and the interior of the grinding frame 35 is connected to the pump.

[0048] A grinding shaft 36 is rotatably connected to one side wall of the grinding frame 35. The grinding shaft 36 stores grinding fluid inside and has evenly spaced drainage holes 37. The grinding fluid is a solution commonly used for grinding. The drainage holes 37 have a small diameter, so that when the grinding shaft 36 is not rotating, the grinding fluid is not affected by centrifugal force and only a small amount of grinding fluid flows out. Alternatively, a semi-sealed measure such as inserting a sponge into the drainage holes 37 can be used to prevent leakage when the drainage holes 37 are stationary.

[0049] A vibrating block 38 is slidably connected to the grinding frame 35 via a spring, and a vibrating toothed ring 39 is provided at the end of the grinding rod, with the vibrating block 38 contacting the vibrating toothed ring 39.

[0050] Specific workflow: After the workpiece passes through the cotton ring 22, if the camera component 34 detects cotton fibers on the workpiece, the conveyor belt 1 drives the swing frame 26 to rotate via the swing motor 27. The swing frame 26 drives the grinding vertical rod 29 to gently contact the surface of the workpiece. The vertical grinding motor 3 drives the grinding vertical rod 29 to rotate, and the rotation of the grinding vertical rod 29 grinds the burrs in the corresponding area and removes the cotton fibers, completing the cleaning work on both sides of the workpiece. When the two swing frames 26 swing close together, the bottom of the swing frame 26 pushes the grinding block 32 to move, and the grinding block 32 drives... As the spring rod 31 moves, it is affected by the upward sliding motion, causing the spring rod 31 to drive the grinding block 32 and the grinding crossbar 28 to move in a state parallel to the top and bottom surfaces of the workpiece until the grinding crossbar 28 contacts the top and bottom of the workpiece. The horizontal grinding motor 33 drives the grinding crossbar 28 to rotate and grind the top and bottom of the workpiece to remove burrs. The cooperation of the grinding crossbar 28 and the grinding vertical bar 29 enables the burrs around the workpiece to be ground evenly, improving the surface smoothness of the workpiece and thus improving the accuracy of the inspection.

[0051] Furthermore, when the swing frame 26 pushes the grinding block 32, the edge of the swing frame 26 is engaged with one side of the grinding block 32. When the grinding rod approaches the surface of the workpiece, the swing frame 26 drives the grinding block 32 to gradually move away from the side wall of the conveyor belt 1, causing the spring rod 31 to be stretched. Through the stretching effect of the spring rod 31, the inertial force generated by the swing of the grinding rod is reduced, which plays a role in damping the grinding rod when it contacts the workpiece. This avoids the grinding rod being affected by the inertia of movement and causing collisions with the workpiece, thus increasing the protection of the workpiece and improving the ease of use. After grinding, the swing motor 27 drives the swing frame 26 to rotate in the opposite direction to reset, the grinding rod moves away from the workpiece and resets, and the spring rod 31 is affected by the spring between it and the side wall of the conveyor belt 1 and moves in the opposite direction to reset.

[0052] Moreover, after the workpiece is polished, it can pass through the next cotton ring 22 and cleaning box 24 to clean the polishing impurities on the workpiece, thereby improving the cleanliness of the workpiece and thus improving the accuracy of the inspection.

[0053] Furthermore, as the grinding rod rotates past the surface of the workpiece, it approaches the opening of the grinding frame 35. Since the interior of the grinding frame 35 is connected to the air extraction end of the pump, the grinding frame 35 simultaneously sucks up debris from the surface of the grinding rod and impurities generated during grinding, preventing grinding debris from adhering to the surface of the workpiece and causing difficulty in cleaning, thereby improving the cleanliness during grinding. In addition, the grinding frame 35 blocks the grinding direction of the workpiece, so that impurities splashed during grinding are intercepted and blocked by the grinding frame 35, inhibiting the degree of splashing and diffusion of grinding impurities and improving the cleanliness of the environment around grinding. Moreover, the splashed impurities can fall directly into the grinding frame 35, improving the efficiency of the grinding frame 35 in absorbing and collecting impurities.

[0054] When the grinding rod rotates past the grinding frame 35, the grinding rod drives the grinding shaft 36 to rotate through conventional driving methods such as friction. The rotation of the grinding shaft 36 transfers the grinding fluid stored inside to the surface of the grinding rod and the surface of the workpiece. With the intervention of the grinding fluid, the grinding effect of the workpiece is improved, thereby improving the surface smoothness of the workpiece and thus improving the detection accuracy.

[0055] The rotation of the grinding rod drives the vibration gear ring 39 to rotate. When the vibration gear ring 39 rotates, the vibrating block 38 is frequently and slightly impacted by the vibration gear ring 39. This causes the grinding rod to be affected by vibration, which dislodging impurities hidden in the gaps of the grinding surface of the grinding rod. This prevents dirt and grime from accumulating on the surface of the grinding rod, thus reducing the grinding effect. Furthermore, metal chips generated during grinding can easily adhere to the surface of the grinding rod or the workpiece, forming built-up edges, which may scratch the coating of the workpiece. The slight vibration can shake off the chips through high-frequency shaking, and they can be quickly collected by the grinding frame 35. This not only prevents impurities from scratching the workpiece, but also improves the efficiency of impurity collection.

[0056] Example 3:

[0057] Based on Embodiment 2, the edge of the grinding vertical rod 29 is bent outward, and the edge of the grinding horizontal rod 28 is bent inward; the outer circumference of the grinding rod is uniformly provided with grooves 4;

[0058] The groove 4 is provided with a scraper 41, which is made of wear-resistant plastic.

[0059] A slide rod 42 is slidably connected to the groove 4 by a spring. A scraper 41 is fixed to one side of the slide rod 42, and one side of the scraper 41 extends out of the groove 4 and is located outside the surface of the grinding rod.

[0060] Specific workflow: When the grinding vertical rod 29 rotates, the outwardly bent parts at both ends of the grinding vertical rod 29 rub against the inner wall of the bend or the inner side of the bend edge of the workpiece, smoothing out the burrs generated by the stamping and cutting, and improving the surface smoothness of the workpiece; the inwardly bent part at the end of the grinding horizontal rod 28 covers the outer side of the bend or bend edge of the workpiece, removing the burrs. The cooperation of the grinding horizontal rod 28 and the grinding vertical rod 29 removes any burrs that may exist in the bend, further improving the smoothness of the workpiece, thereby improving the accuracy of the inspection;

[0061] By setting the groove 4, when the grinding rod is grinding, the groove 4 is close to the grinding surface of the workpiece. The grinding frame 35 draws air from the grinding surface of the workpiece, removing some of the impurities attached to the grinding surface first. This avoids excessive impurities from entering during grinding, which could aggravate surface damage to the workpiece, thereby improving the grinding effect and thus improving the accuracy of workpiece inspection. Furthermore, guided by the groove 4, the grinding frame 35 allows some of the drawn air to pass over the grinding surface of the workpiece, reducing the high temperature generated during grinding and preventing high temperatures from affecting the surface of the workpiece and thus affecting the inspection results.

[0062] Furthermore, when the groove 4 approaches the surface of the workpiece, the grinding rod drives the scraper 41 to contact the grinding surface of the workpiece, peeling away impurities from the grinding surface and improving the efficiency of removing grinding impurities. Also, when the groove 4 approaches the workpiece, the scraper 41 contacts the workpiece, and the scraper 41 is compressed, causing the slide rod 42 to slide into the groove 4. When the groove 4 moves away from the workpiece, the slide rod 42 is affected by the spring, causing the scraper 41 to extend and continue contacting the workpiece. This ensures that the scraper 41 remains in contact with the workpiece as the groove 4 moves from approaching to moving away, extending the contact time and area of ​​the scraper 41 in cleaning the workpiece, removing impurities and grinding fluid from the processing surface, improving the cleanliness of the workpiece, reducing subsequent cleaning pressure, and thus improving the accuracy of workpiece inspection.

[0063] Example 4:

[0064] Based on Embodiment 3, the scraper 41 is provided with hooks 43 evenly on one side extending out of the groove 4;

[0065] The cleaning box 24 has nozzles 44 distributed on the side away from the sliding rod 19, and the nozzles 44 are connected to the steam cleaner, with the nozzles 44 facing the grinding rod on one side.

[0066] Specific workflow: When the grinding rod drives the scraper 41 to rotate, the scraper 41 drives the hook 43 to rotate and pass over the burr. The plastic hook 43 hooks away the cotton fibers on the burr, avoiding excessive cotton fibers from getting tangled on the grinding rod and affecting the grinding effect. After the hook 43 passes over the burr, the scraper 41 pre-scrapes the burr, removing a portion of it in advance. This, combined with the grinding of the grinding rod, improves the burr removal efficiency, thereby improving the cleaning efficiency of the processed parts and, consequently, the inspection efficiency of the processed parts.

[0067] Metal retains residual heat after grinding. Rapid cooling leads to a sharp increase in the temperature difference between the surface and the interior. The surface cools and contracts quickly, while the internal metal cools and contracts more slowly. This tension creates internal stress, which can cause minor warping or deformation of the outer shell, or even micro-cracks. Therefore, after grinding, a steam cleaner sprays steam onto the grinding rod and workpiece through nozzle 44. The slowly delivered steam, at a temperature of 50-80℃, quickly removes heat, preventing the metal shell from deforming due to high temperatures, or the anodized or painted layers from peeling or discoloring, thus improving the integrity of the workpiece. Furthermore, the steam condenses into tiny droplets upon contact with dust, causing dust particles to agglomerate and settle, preventing them from floating and spreading. The humidity of the steam also reduces electrostatic adsorption of dust, decreasing the probability of dust adhering to the outer shell surface or grinding tools. In addition, the impact of the steam washes away small burrs and metal debris adhering to edges and corners after grinding, preventing secondary scratches or interference with subsequent inspections. 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal workpiece appearance quality detection system comprising a conveyor belt (1) and a detection platform (11); characterized in that, Also includes: A hanging bracket (12) is rotatably connected to the conveyor belt (1) at its top. A clamp (13) is installed at the bottom of the hanging bracket (12). A drive ring (14) is fitted on the hanging bracket (12). A drive bar (15) is provided on the side wall of the conveyor belt (1). A locking block (16) is slidably connected to the conveyor belt (1) by a spring. The bottom of the locking block (16) contacts the top of the drive bar (15), and one side of the locking block (16) engages with the drive ring (14). A sliding frame (18) is connected to the side wall of the conveyor belt (1) by an electric telescopic rod (17). The sliding frame (18) is connected to the sliding rod (19) by a spring, and a pressure sensor is provided between the two; the fixed shaft (2) is located on one side of the sliding rod (19), and the fixed shaft (2) is sleeved and rotatably connected to the rotating shaft (21). The outer ring of the rotating shaft (21) is provided with a cotton ring (22), and the outer circumference of the cotton ring (22) contacts the surface of the workpiece fixed by the clamp (13). The sliding rod (19) is equipped with a rotating motor (23) connected to the rotating shaft (21), and the sliding rod (19) is located on one side of the detection platform (11); clean The cleaning box (24) is located on one side of the sliding rod (19). The cleaning box (24) is connected to the pump in the conveyor belt (1). The inner wall of one side of the cleaning box (24) is in contact with the cotton ring (22). The fixed shaft (2) has an air jet groove (25) on its outer periphery, and the air jet groove (25) is aligned with the opening of the cleaning box (24). The sliding rod (19) is rotatably connected to a swing frame (26) on the side away from the cleaning box (24). The swing frame (26) is connected to a swing motor (27) installed on the sliding rod (19). The swing frame (26) is provided with a grinding rod, which is divided into a grinding horizontal bar (28) and a grinding vertical bar (29). A grinding vertical rod (29) is rotatably connected to one side of the moving frame (26), and the grinding vertical rod (29) is connected to a vertical grinding motor (3) installed on the swing frame (26); a spring rod (31) is slidably connected to the side wall of the conveyor belt (1) by a spring, the spring rod (31) slides obliquely upward, a grinding block (32) is provided at one end of the spring rod (31), the bottom side of the swing frame (26) contacts the grinding block (32), a grinding horizontal rod (28) is rotatably connected to one end of the grinding block (32), and the grinding horizontal rod (28) is connected to a horizontal grinding motor (33) on the grinding block (32); a camera assembly (34) is provided between the sliding rod (19) and the grinding rod.

2. The metal workpiece appearance quality detection system according to claim 1, characterized by: The swing frame (26) is provided with a grinding frame (35), the opening of the grinding frame (35) is close to the grinding rod, and the interior of the grinding frame (35) is connected to the pump.

3. The system for detecting the appearance quality of a metal workpiece according to claim 2, characterized in that: A grinding shaft (36) is rotatably connected to one side wall of the grinding frame (35). The grinding shaft (36) stores grinding fluid inside and has evenly distributed leakage holes (37) on it.

4. The metal processing part appearance quality inspection system according to claim 3, characterized in that: A vibrating block (38) is slidably connected to the grinding frame (35) by a spring, and a vibrating toothed ring (39) is provided at the end of the grinding rod, with the vibrating block (38) contacting the vibrating toothed ring (39).

5. The metal processing part appearance quality inspection system according to claim 4, characterized in that: The edge of the grinding vertical rod (29) is bent outward, and the edge of the grinding horizontal rod (28) is bent inward; the outer circumference of the grinding rod is uniformly provided with grooves (4).

6. The metal processing part appearance quality inspection system according to claim 5, characterized in that: The groove (4) is provided with a scraper (41), which is made of wear-resistant plastic.

7. The metal processing part appearance quality inspection system according to claim 6, characterized in that: A sliding rod (42) is slidably connected to the groove (4) by a spring. A scraper (41) is fixed to one side of the sliding rod (42), and one side of the scraper (41) extends out of the groove (4) and is located outside the surface of the grinding rod.

8. The metal processing part appearance quality inspection system according to claim 7, characterized in that: The scraper (41) has hooks (43) evenly distributed on one side of the groove (4) extending out of the groove.

9. A metal processing part appearance quality inspection system according to claim 8, characterized in that: The cleaning box (24) has nozzles (44) distributed on the side away from the sliding rod (19), and the nozzles (44) are connected to the steam cleaner, with the nozzles (44) facing the grinding rod on one side.

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