A bearing steel ball visual inspection apparatus

Abstract

The application discloses a bearing steel ball visual detection equipment, which comprises a feeding mechanism, an arrangement mechanism, a detection mechanism and a discharging mechanism. The feeding mechanism comprises a hopper, and the feeding mechanism is connected with the arrangement mechanism through a hose. The arrangement mechanism comprises a tray and a first motor for driving the tray to rotate. The detection mechanism comprises a detection camera, a lens and a light source. The discharging mechanism comprises a discharging plate, a collecting groove and a recycling groove. The tray is disc-shaped and is provided with a plurality of holes for placing bearing steel balls. The tray is rotated to drive the bearing steel balls to move to the lower side of the camera, and the bearing steel balls are driven to rotate by a rotating mechanism, so that the bearing steel balls can be detected at all angles. Meanwhile, the structure and shape of the light source are optimized, the depth of the holes is adjusted, the interfering light is filtered, the bearing steel balls are immersed in oil during shooting, the highlight is reduced, the pictures shot are free from bright spots and dark spots, the pictures are clearer, and the detection accuracy is ensured.

Description

Technical Field

[0001] This invention relates to the field of visual inspection technology, specifically to a visual inspection device for bearing steel balls. Background Technology

[0002] Visual inspection is the use of machines to replace human eyes for measurement and judgment. Visual inspection involves using machine vision products to convert the captured target into image signals, which are then transmitted to a dedicated image processing system. Based on pixel distribution and information such as brightness and color, these signals are converted into digital signals. The image system performs various calculations on these signals to extract the target's features, and then controls the on-site equipment based on the judgment results.

[0003] In the inspection of bearing steel balls, the most important factor is the photographic quality. The main reason affecting the photographic quality is that the surface of the steel ball is smooth and reflective. When photographed by an inspection camera, bright spots often appear on the surface of the ball, which greatly affects the recognition effect of the captured image. At the same time, since the surface of the ball is curved, dark spots will also appear in the center after the light is not on the same plane. If the scratch on the ball is located in the bright spot area or the dark spot area, it will lead to a decrease in the accuracy of surface damage recognition. This can easily lead to defective products entering the market and causing adverse effects. Therefore, it is necessary to optimize the structure of the inspection equipment to avoid the above situations. Summary of the Invention

[0004] (I) Technical Solution

[0005] To address the aforementioned technical problems, this invention provides a visual inspection device for bearing steel balls.

[0006] The specific technical solution is as follows:

[0007] A visual inspection device for bearing steel balls includes a feeding mechanism, an arranging mechanism, an inspection mechanism, and a discharging mechanism. The feeding mechanism includes a hopper for storing bearing steel balls to be inspected. The feeding mechanism is connected to the arranging mechanism via a flexible hose. The bearing steel balls to be inspected in the hopper enter the arranging mechanism through the flexible hose. The arranging mechanism includes a tray and a first motor for driving the tray to rotate. The tray has multiple through holes for accommodating bearing steel balls. The inspection mechanism includes an inspection camera, a lens, and a light source. The inspection camera is located above the tray and operates via the first motor. The machine drives the material tray to rotate, causing the bearing steel balls in the tray holes to pass sequentially under the detection camera for photographic inspection. The discharge mechanism includes a feeding plate, a collection trough, and a recycling trough. The collection trough is used to collect qualified products, and the recycling trough is used to collect unqualified products. The feeding plate is provided with feeding holes, the size of which corresponds to the holes on the material tray. By aligning or offsetting the feeding holes with the holes on the material tray, qualified and unqualified products are sorted. Both the collection trough and the recycling trough are provided with flexible hoses that correspond to the holes at the bottom of the material tray, used to collect the sorted bearing steel balls into the corresponding material troughs.

[0008] Furthermore, the feeding mechanism also includes a baffle plate, a slider, and a second motor. The baffle plate and the slider have a hole between them and are located at the discharge position of the hopper. The bearing steel balls in the hopper enter the arrangement mechanism through the hole in the baffle plate and the slider, as well as the hose connecting the feeding mechanism and the arrangement mechanism. The baffle plate has a groove, and the slider is located in the groove. The second motor and the slider are connected by a crank-connecting rod mechanism. The feeding switch of the bearing steel balls is controlled by the connection and closure of the hole in the slider and the baffle plate.

[0009] Furthermore, the arrangement mechanism also includes a base plate, a temporary storage slot, a rotating plate, a third motor, and a fourth motor. The lower opening of the temporary storage slot corresponds to the hole on the material tray. The first motor is located at the bottom of the base plate, and the material tray is located at the top of the base plate. The bottom surface of the material tray contacts the top surface of the rotating plate. Both the material tray and the rotating plate are circular and partially intersect. The hole on the material tray is located within the intersecting area. The third motor is connected to the rotating plate, and the fourth motor is connected to the base plate via a crank connecting rod. A linear guide rail is provided at the bottom of the base plate. The third motor drives the rotating plate to rotate, and the fourth motor drives the base plate to reciprocate. The rotating plate reciprocates synchronously, and the material tray does not reciprocate relative to the base plate.

[0010] Furthermore, the material tray has a slit on its side, and a partition is provided in the slit. The partition divides the hole on the material tray into upper and lower parts. The partition is positioned opposite to the temporary storage groove. The upper hole of the partition can only accommodate a single bearing ball. The depth of the hole on the material tray is three times the diameter of the bearing ball. The partition is fixed relative to the temporary storage groove.

[0011] Furthermore, the holes on the material tray are arranged in rows, with the distance from the center of the material tray to the holes in the same row being equal, and each row of holes is set at an equal angle. The temporary storage groove is an arc-shaped structure.

[0012] Furthermore, the material tray has a double-row structure of holes, with the distance from the center of the material tray to the holes in the same row being equal, and the holes in each row being set at equal angles. The temporary storage groove has an arc-shaped structure.

[0013] Furthermore, the detection mechanism also includes a set of columns, on which two lifting frames are fixed. The light source is fixed on one of the lifting frames, and the other lifting frame is provided with a sliding groove. A sliding adjustment plate is provided in the sliding groove. The detection camera is fixed on the adjustment plate. The lens is a telecentric lens. The light source specifically includes an arc-shaped light source fixing plate. The vertical side of the fixing plate is provided with a matrix of holes, and LED beads are provided in the holes.

[0014] Furthermore, the discharge mechanism also includes a fifth motor, a lead screw, and a nut. The bottom plate has a notch at its lower part, and the discharge plate corresponds to the notch. The discharge plate is located below the material tray. The fifth motor is fixedly connected to the lead screw, and the nut cooperates with the lead screw. The discharge plate is fixedly connected to the nut. By rotating the fifth motor in the forward or reverse direction, the discharge plate is driven to reciprocate, so that the discharge holes on the discharge plate are aligned or staggered with the holes on the material tray. The lower part of the discharge plate is connected to the recycling tank through a flexible hose. The bottom plate also has a collection hole, which is connected to the collection tank through a flexible hose.

[0015] Furthermore, the feeding hole includes a first feeding hole and a second feeding hole. The first feeding hole corresponds to the size of the hole on the material tray. The second feeding hole is a straight slot hole, and its size corresponds to two holes in the double row of holes on the material tray. When the first feeding hole is aligned with one hole on the material tray, the second feeding hole is misaligned with the hole on the material tray. When the second feeding hole is aligned with one hole on the material tray, the first feeding hole is misaligned with the hole on the material tray. When the second feeding hole is aligned with two holes on the material tray, the first feeding hole is misaligned with the hole on the material tray.

[0016] Furthermore, the system includes a circulating oil system, specifically comprising an oil tank, a transfer pump, an elevator, and a cleaning tank. The material tray is located within the oil tank. When the bearing steel balls enter the material tray, the oil tank is filled with white oil, and the level of the white oil is higher than the height of the holes in the material tray. The elevator is located within the collection tank. There are two elevators, namely a first elevator and a second elevator. The lower end of the hose connected to the collection hole is fixedly connected to the feeding end of the first elevator. The discharging end of the first elevator is fixedly connected to the feeding end of the second elevator. The first elevator is fixed within the collection tank, and the second elevator is fixed within the cleaning tank. The transfer pump is fixed to the collection tank and is used to transport the liquid in the collection tank to the oil tank.

[0017] (ii) Beneficial effects

[0018] Compared with existing technologies, the technical solution proposed in this invention uses a disc-shaped material tray with multiple holes for placing bearing steel balls. The rotation of the material tray moves the bearing steel balls to below the camera, and simultaneously, a rotating mechanism rotates the bearing steel balls, enabling full-angle detection of the bearing steel ball surface. Furthermore, the structure and shape of the light source are optimized, and the hole depth is adjusted to filter interfering light. Immersing the bearing steel balls in oil during imaging also reduces highlights, ensuring that the captured images are free of bright and dark spots, resulting in clearer images and ensuring detection accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a perspective view of the present invention.

[0022] Figure 3 for Figure 2 Enlarged view of a portion of the image.

[0023] Figure 4 This is a schematic diagram of a hopper.

[0024] Figure 5 This is a schematic diagram of the specific structure of the oil tank discharge mechanism and the detection mechanism.

[0025] Figure 6 for Figure 5 Enlarged view of a portion of the image.

[0026] Figure 7 This is a schematic diagram of the partition tray assembly.

[0027] Figure 8 This is a schematic diagram showing the assembly of the feed plate and the tray. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the invention, not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0029] In existing technologies, when a sphere is photographed by a detection camera, bright spots often appear on its surface. These bright spots greatly affect the recognition effect of the captured image. Additionally, since the sphere is a curved surface, dark spots may appear in the center after the image is taken from different planes. If the scratch on the sphere is located in the bright spot or dark spot area, the accuracy of surface damage recognition will be reduced. This can easily lead to defective products entering the market and causing adverse effects.

[0030] To address the problems existing in the relevant prior art, this invention proposes a visual inspection device for bearing steel balls. The principle and structure of this invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0031] Please see Figures 1-8 A visual inspection device for bearing steel balls includes a feeding mechanism, an arranging mechanism, an inspection mechanism, and a discharging mechanism. The feeding mechanism includes a hopper 1 for storing bearing steel balls to be inspected. The feeding mechanism is connected to the arranging mechanism via a flexible hose 2. The bearing steel balls to be inspected in the hopper 1 enter the arranging mechanism through the flexible hose 2. The arranging mechanism includes a tray 3 and a first motor 4 for driving the tray 3 to rotate. The tray 3 has multiple through holes for accommodating bearing steel balls. During inspection, one bearing steel ball is placed in each hole. The inspection mechanism includes an inspection camera 5, a lens 6, and a light source 7. The inspection camera 5 is located above the tray 3 and is driven to rotate by the first motor 4, causing the bearing steel balls in the holes of the tray 3 to be discharged. Bearing steel balls are sequentially photographed and inspected below the detection camera 5. The discharge mechanism includes a feeding plate 8, a collection trough 9, and a recycling trough 10. The collection trough 9 is used to collect qualified products, and the recycling trough 10 is used to collect unqualified products. The feeding plate 8 is provided with a feeding hole, the size of which corresponds to the hole on the material tray 3. By matching or offsetting the feeding hole with the hole on the material tray 3, qualified and unqualified products are sorted. Both the collection trough 9 and the recycling trough 10 are provided with flexible hoses that correspond to the holes at the bottom of the material tray 3, which are used to collect the sorted bearing steel balls into the corresponding material troughs. For easy distinction, the flexible hose connected to the collection trough is defined as the second flexible hose 11, and the flexible hose connected to the recycling trough is defined as the third flexible hose 12.

[0032] Meanwhile, the feeding mechanism also includes a baffle plate 13, a slider 14, and a second motor 15. The baffle plate 13 and the slider 14 have a hole in the middle and are located at the discharge position of the hopper 1. The bearing steel balls in the hopper 1 enter the arrangement mechanism through the hole in the baffle plate and the slider, as well as the hose 2 connecting the feeding mechanism and the arrangement mechanism. The baffle plate 13 has a groove, and the slider 14 is located in the groove. The second motor 15 and the slider 14 are connected by a crank-connecting rod mechanism. The feeding switch of the bearing steel balls is controlled by the connection and misalignment of the slider 14 and the hole in the baffle plate 13. When the slider 14 and the hole in the baffle plate 13 are connected, the bearing steel balls in the hopper 1 enter the arrangement mechanism. When the slider 14 and the hole in the baffle plate 13 are misaligned, the bearing steel balls in the hopper 1 stop entering the arrangement mechanism.

[0033] The arrangement mechanism also includes a base plate 16, a temporary storage tank 17, a rotating plate 18, a third motor 19, and a fourth motor 20. The temporary storage tank 17 is connected to a flexible hose 2 connecting to the hopper 1. The bearing steel balls in the hopper 1 enter the temporary storage tank 17 through the flexible hose 2. The lower opening of the temporary storage tank 17 corresponds to the hole on the material tray 3. The first motor 4 is located at the bottom of the base plate 16, and the material tray 3 is located on the upper part of the base plate 16. The lower bottom surface of the material tray 3 contacts the upper top surface of the rotating plate 18. Both the material tray 3 and the rotating plate 18 are circular and partially intersect. The upper part of the hole on the material tray 3 is located in the intersecting area. The third motor 19 is connected to the rotating plate 18, and the fourth motor 20 is connected to the base plate 16 through a crank connecting rod. A linear guide rail is provided at the bottom of the base plate 16. The third motor 19 drives the rotating plate 18 to rotate, and the fourth motor 20 drives the rotating plate 18 to rotate. The base plate 16 reciprocates, and the rotating plate 18 reciprocates synchronously. The material tray 3 does not reciprocate relative to the base plate. With the above settings, as the material tray 3 rotates, the bearing balls in the holes on the material tray 3 also move synchronously. When the bearing balls move above the rotating plate 18, the rotation of the rotating plate 18 can drive the bearing balls in the holes to rotate in the corresponding holes. At the same time, the rotating plate 18 also reciprocates with the base plate 16, so that the bearing balls in the holes on the material tray are flipped and move with the reciprocating motion of the rotating plate 18. This can ensure that the rotation of the bearing balls is more varied. At this time, the detection camera continuously takes pictures of the bearing balls for detection, which can take pictures of the bearing balls comprehensively and will not miss the detection of some spherical surfaces, thus ensuring the accuracy of the detection.

[0034] The material tray 3 has a slit on its side, and a partition 21 is installed in the slit. The partition 21 divides the holes on the material tray into upper and lower parts. The partition 21 is positioned opposite to the temporary storage groove 17. The upper hole of the partition 21 can only accommodate a single bearing ball. The depth of the holes on the material tray is three times the diameter of the bearing ball. The partition 21 and the temporary storage groove 17 are fixed relative to each other. As the material tray 3 rotates, the bearing balls in the temporary storage groove 17 enter the holes of the material tray 3 one by one. By setting the partition, it is ensured that each hole can accommodate one bearing ball. As the material tray 3 rotates, the bearing balls in the holes move away from above the partition 21. The bearing steel ball will then fall to the bottom of the hole, with a hole depth three times the diameter of the bearing steel ball. With the above settings, the hole is vertical, so the detection camera 5 is located directly above the material tray. At this time, the light source 7 needs to be located to the side of the bearing steel ball. Setting the hole depth to three times the diameter of the bearing steel ball can prevent the light source 7 from directly shining on the bearing steel ball, thus making it less likely for bright spots to appear during shooting. The light from the light source 7 enters the hole and is reflected and scattered, making the overall environment inside the hole equally bright, resulting in a clearer shooting effect. At the same time, if the hole depth is too deep, some steel balls may not be imaged during shooting.

[0035] The holes on the material tray 3 are arranged in rows, with the distance from the center of the material tray 3 to the holes in the same row being equal, and the holes in each row being set at equal angles. The temporary storage groove 17 is an arc-shaped structure.

[0036] Specifically, the material tray 3 has a double-row structure of holes, with the distance from the center of the material tray 3 to the holes in the same row being equal, and the holes in each row being set at equal angles. The temporary storage groove 17 has an arc-shaped structure, with its bottom corresponding to the double-row holes. This ensures that the bearing steel balls in the temporary storage groove 17 fall into the holes, and also prevents the bearing steel balls from getting stuck and jumping out of the temporary storage groove when the temporary storage groove 17 and the material tray are displaced and rotated.

[0037] The testing mechanism also includes a set of columns 22, on which two lifting frames 23 are fixed. The light source 7 is fixed on one lifting frame 23, and the other lifting frame 23 is provided with a sliding groove. A sliding adjustment plate 24 is provided in the sliding groove. The testing camera 5 is fixed on the adjustment plate 24, and the lens 6 is a telecentric lens. The light source 7 specifically includes an arc-shaped light source fixing plate. The vertical edge of the fixing plate is provided with matrix-style holes, and LED beads are provided in the holes. There are multiple testing cameras 5. The lifting frames 23 and the adjustment plate 24 are used to adjust the height and position of the testing cameras 5. The testing cameras 5, together with the telecentric lens, can realize that one camera can take pictures of the bearing steel balls in multiple holes. This setting of multiple testing cameras 5 for simultaneous testing allows a bearing steel ball to be photographed and tested multiple times by multiple testing cameras, which further improves the accuracy. At the same time, the light source 7 is synchronously set to be arc-shaped to ensure that the light source provides sufficient brightness and does not obstruct the testing cameras from performing the testing.

[0038] The discharge mechanism also includes a fifth motor 25, a lead screw 26, and a nut 27. The bottom plate 16 has a notch at the bottom, and the discharge plate 8 corresponds to the notch. The discharge plate 8 is located below the material tray 3. The fifth motor 25 is fixedly connected to the lead screw 26, and the nut 27 cooperates with the lead screw 26. The discharge plate 8 is fixedly connected to the nut 27. By rotating the fifth motor 25 in the forward or reverse direction, the discharge plate 8 is driven to reciprocate, so that the discharge holes of the discharge plate 8 are aligned or staggered with the holes on the material tray 3. The lower part of the discharge plate 3 is connected to the recycling tank through a hose. Specifically, the discharge plate 3 is connected to the recycling tank 10 through a third hose 12. The bottom plate 16 is also provided with a collection hole, which is connected to the collection tank through a hose. Specifically, the collection hole is connected to the collection tank 9 through a second hose 11.

[0039] Please refer to the details. Figure 8 The dotted line indicates that the feed plate 8 is located below the feed tray 3. Taking a double-row hole as an example, the feed holes include a first feed hole 28 and a second feed hole 29. The first feed hole 28 corresponds to the size of the hole on the feed tray, and the second feed hole 29 is a straight slot hole, the size of which corresponds to the two holes in the double row of holes on the feed tray. When the first feed hole 28 is aligned with one hole on the feed tray, the second feed hole 29 is misaligned with the hole on the feed tray. This is defined as the first position. When the second feed hole 29 is aligned with one hole on the feed tray, the first feed hole 28 is misaligned with the hole on the feed tray. This is defined as the second position. When the second feed hole 29 is aligned with both holes on the feed tray 3, the first feed hole 28 is misaligned with the hole on the feed tray. This is defined as the third position. When the bearing steel balls in the inner row of holes are not aligned... When the bearing balls in the outer row of holes are not qualified, the feeding plate 8 moves to the first position. When the bearing balls in both rows of holes are not qualified, the feeding plate 8 moves to the third position. This realizes three feeding modes controlled by a single motor. At the same time, position sensors 30 are set in the first, second and third positions for precise control of feeding. The distance between the centers of the two holes in the double row of holes on the material tray is defined as H1, and the distance between the center of the first feeding hole 28 and the center of the straight groove hole at the end of the second feeding hole 29 near the first feeding hole is defined as H2. The difference between H2 and H1 is the diameter of the bearing ball to be tested. This ensures that the feeding plate only needs to be displaced by the diameter of one bearing ball when moving from the first position to the second position, so that the response speed is faster.

[0040] The system includes a circulating oil system, specifically an oil tank 31, a conveying pump 32, an elevator, and a cleaning tank 34. A material tray 3 is located within the oil tank 31. When the bearing steel balls enter the material tray 3, the oil tank is filled with transparent oil, and the liquid level is higher than the height of the holes in the material tray 3. An elevator is installed in the collection tank 9. This elevator is existing technology and can be a belt elevator or a screw elevator. Its main function is to lift the bearing steel balls while ensuring that the transparent oil flows out from the bottom, thus achieving separation. There are two elevators: a first elevator 33 and a second elevator 35. The lower end of a second flexible hose 11 connected to the collection hole is fixedly connected to the first elevator 33. The first elevator 33 is fixedly connected to the discharge end of the first elevator 33 and the loading end of the second elevator 35. The first elevator 33 is fixed in the collection tank 9 and the second elevator 35 is fixed in the cleaning tank 35. The conveying pump is fixed on the collection tank 9 and is used to convey the liquid in the collection tank 9 to the oil tank 31. Specifically, the inlet pipe of the conveying pump is connected to the collection tank 9 and the outlet pipe is connected to the oil tank 31. When the oil in the oil tank 31 falls into the collection tank 9 through the first discharge hole 28, the second discharge hole 29 and the collection hole, it is then conveyed back by the conveying pump 32 to form a cycle. The collection tank 9 and the recovery tank 10 are separated by a perforated plate so that the oil can communicate with each other and the bearing steel balls are separated.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A visual inspection device for bearing steel balls, characterized in that: The system includes a feeding mechanism, an arranging mechanism, a detection mechanism, and a discharging mechanism. The feeding mechanism includes a hopper for storing bearing balls to be tested. The feeding mechanism is connected to the arranging mechanism via a flexible hose. The bearing balls to be tested in the hopper enter the arranging mechanism through the flexible hose. The arranging mechanism includes a tray and a first motor for driving the tray to rotate. The tray has multiple through holes for accommodating the bearing balls. The detection mechanism includes a detection camera, a lens, and a light source. The detection camera is located above the tray and is driven to rotate by the first motor. The movement causes the bearing steel balls in the material tray holes to pass sequentially through the bottom of the detection camera for photographic inspection. The discharge mechanism includes a feeding plate, a collection trough, and a recycling trough. The collection trough is used to collect qualified products, and the recycling trough is used to collect unqualified products. The feeding plate is provided with feeding holes, the size of which corresponds to the holes on the material tray. By aligning or offsetting the feeding holes with the holes on the material tray, qualified and unqualified products are sorted. Both the collection trough and the recycling trough are provided with flexible hoses that correspond to the holes at the bottom of the material tray, used to collect the sorted bearing steel balls into the corresponding material troughs.

2. The bearing steel ball visual inspection equipment according to claim 1, characterized in that: The feeding mechanism also includes a baffle plate, a slider, and a second motor. The baffle plate and the slider have a hole between them and are located at the discharge position of the hopper. The bearing steel balls in the hopper enter the arrangement mechanism through the hole in the baffle plate and the slider, as well as the hose connecting the feeding mechanism and the arrangement mechanism. The baffle plate has a groove, and the slider is located in the groove. The second motor and the slider are connected by a crank-connecting rod mechanism. The feeding switch of the bearing steel balls is controlled by the connection and closure of the hole in the slider and the baffle plate.

3. The visual inspection equipment for bearing steel balls according to claim 2, characterized in that: The arrangement mechanism further includes a base plate, a temporary storage slot, a rotating plate, a third motor, and a fourth motor. The lower opening of the temporary storage slot corresponds to the hole on the material tray. The first motor is located at the bottom of the base plate, and the material tray is located at the top of the base plate. The bottom surface of the material tray contacts the top surface of the rotating plate. Both the material tray and the rotating plate are circular and partially intersect. The hole on the material tray is located in the intersecting area. The third motor is connected to the rotating plate, and the fourth motor is connected to the base plate via a crank connecting rod. A linear guide rail is provided at the bottom of the base plate. The third motor drives the rotating plate to rotate, and the fourth motor drives the base plate to reciprocate. The rotating plate reciprocates synchronously, and the material tray does not reciprocate relative to the base plate.

4. The visual inspection equipment for bearing steel balls according to claim 3, characterized in that: The material tray has a slit on its side, and a partition is installed in the slit. The partition divides the hole on the material tray into upper and lower parts. The partition is positioned opposite to the temporary storage groove. The upper hole of the partition can only accommodate a single bearing ball. The depth of the hole on the material tray is three times the diameter of the bearing ball. The partition is fixed relative to the temporary storage groove.

5. The bearing steel ball visual inspection equipment according to claim 4, characterized in that: The holes on the material tray are arranged in rows, with each row of holes being equidistant from the center of the tray, and each row of holes being set at equal angles. The temporary storage slot is an arc-shaped structure.

6. The bearing steel ball visual inspection equipment according to claim 4, characterized in that: The material tray has a double-row structure of holes, with the distance from the center of the material tray to the holes in the same row being equal, and the holes in each row being set at equal angles. The temporary storage slot has an arc-shaped structure.

7. The bearing steel ball visual inspection equipment according to claim 6, characterized in that: The detection mechanism also includes a set of columns, on which two lifting frames are fixed. The light source is fixed on one of the lifting frames, and the other lifting frame is provided with a sliding groove. A sliding adjustment plate is provided in the sliding groove. The detection camera is fixed on the adjustment plate. The lens is a telecentric lens. The light source specifically includes an arc-shaped light source fixing plate. The vertical side of the fixing plate is provided with a matrix of holes, and LED beads are provided in the holes.

8. The bearing steel ball visual inspection equipment according to claim 7, characterized in that: The discharge mechanism also includes a fifth motor, a lead screw, and a nut. The bottom plate has a notch at the bottom, and the discharge plate corresponds to the notch. The discharge plate is located below the material tray. The fifth motor is fixedly connected to the lead screw, and the nut cooperates with the lead screw. The discharge plate is fixedly connected to the nut. By rotating the fifth motor in the forward or reverse direction, the discharge plate is driven to reciprocate, so that the discharge holes on the discharge plate are aligned or offset from the holes on the material tray. The lower part of the discharge plate is connected to the recycling tank through a hose. The bottom plate also has a collection hole, which is connected to the collection tank through a hose.

9. A visual inspection device for bearing steel balls according to claim 8, characterized in that: The feeding holes include a first feeding hole and a second feeding hole. The first feeding hole corresponds to the size of the hole on the material tray. The second feeding hole is a straight slot hole, and its size corresponds to two holes in the double row of holes on the material tray. When the first feeding hole is aligned with one hole on the material tray, the second feeding hole is misaligned with the hole on the material tray. When the second feeding hole is aligned with one hole on the material tray, the first feeding hole is misaligned with the hole on the material tray. When the second feeding hole is aligned with two holes on the material tray, the first feeding hole is misaligned with the hole on the material tray.

10. A visual inspection device for bearing steel balls according to claim 9, characterized in that: The system includes a circulating oil system, specifically comprising an oil tank, a transfer pump, an elevator, and a cleaning tank. A material tray is located within the oil tank. When bearing steel balls enter the material tray, the oil tank is filled with white oil, and the level of the white oil is higher than the height of the holes in the material tray. The elevator is located within a collection tank. There are two elevators: a first elevator and a second elevator. The lower end of a flexible hose connected to the collection hole is fixedly connected to the loading end of the first elevator. The unloading end of the first elevator is fixedly connected to the loading end of the second elevator. The first elevator is fixed within the collection tank, and the second elevator is fixed within the cleaning tank. The transfer pump is fixed to the collection tank and is used to transfer the liquid from the collection tank to the oil tank.

Images