Intelligent visual detection device for defects of spherical rolling bodies of a bearing

Abstract

The application provides a kind of bearing spherical rolling body defect intelligent vision detection device, belongs to the field of ball outer surface detection. Including rack, the rack is equipped with ball placing box, the outlet of ball placing box is connected with feeding frame, the bottom wall of feeding frame is inclined, the outlet of feeding frame is located at the low end of its bottom wall, the outlet of feeding frame is connected with feeding box, a plurality of feeding holes are provided on the feeding box, the feeding holes are located above the bottom wall of feeding frame, a feeding mechanism is provided at the low end of the bottom wall of feeding frame, the feeding mechanism is slidably connected with feeding frame, the feeding mechanism can push the ball upwards to the feeding hole, the feeding hole is connected with ball receiving mechanism through feeding pipe, the ball receiving mechanism is provided with detection camera above the rack, and the ball receiving mechanism is connected with ball sorting mechanism provided on the rack.

Description

Technical Field

[0001] This invention belongs to the field of spherical outer surface inspection, and particularly relates to an intelligent visual inspection device for defects in the spherical rolling elements of bearings. Background Technology

[0002] Bearings are a key basic component of modern machinery, with two core functions. First, they support rotating shafts: this is the core function of bearings, as they can bear the radial and axial loads of the shaft and the parts on it, keeping the shaft in a precise working position and ensuring the stability and accuracy of the machinery's operation. Second, they reduce frictional losses: by converting the sliding friction between the shaft and the supporting structure into rolling friction, they significantly reduce motion resistance, reduce wear, extend the service life of equipment, and reduce energy consumption. Steel balls are the core rolling elements of bearings and play a crucial role. As rolling elements, they completely transform the sliding friction between the inner and outer rings into low-resistance rolling friction. They are the core carrier for bearings to achieve friction reduction. By distributing the load applied to the bearing to multiple contact points, steel balls avoid localized stress concentration and significantly improve the overall load-bearing capacity of the bearing. The high-precision spherical profile of the steel balls allows the shaft to remain stable during high-speed operation, suppressing vibration and runout, and ensuring the coaxiality and positioning accuracy of rotation. Therefore, the quality of the steel balls is an important indicator of bearing quality, and thus, they must be rigorously inspected, with the inspection of surface defects on the steel balls being particularly important.

[0003] For example, a Chinese patent discloses a rapid inspection device for the appearance of spherical beads [Application No.: CN201721531781.2], including a material section, a conveying section, a driving section, an inspection section, and a screening section. Small holes are evenly distributed on the first conveyor belt of the conveying section, forming a receiving area. An air pipe is then installed directly below the perforated position on the first conveyor belt in the screening section to separate qualified and unqualified products. The entire inspection device has a simple design, and the inspection process is high-speed and reliable, greatly improving inspection quality and efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an intelligent visual inspection device for defects in the spherical rolling elements of bearings.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions: A smart visual inspection device for defects in spherical rolling elements of bearings includes a frame with a ball placement box on the frame. A feeding frame is connected to the outlet of the ball placement box, and the bottom wall of the feeding frame is inclined. The outlet of the feeding frame is located at the lower end of its bottom wall. A feeding box is connected to the outlet of the feeding frame, and the feeding box has several feeding holes located above the bottom wall of the feeding frame. A feeding mechanism is located at the lower end of the bottom wall of the feeding frame and is slidably connected to the feeding frame. The feeding mechanism can push the balls upwards to the feeding holes. The feeding holes are connected to a ball receiving mechanism via a feeding pipe. An inspection camera is mounted on the frame above the ball receiving mechanism, and the ball receiving mechanism is connected to a ball sorting mechanism mounted on the frame.

[0006] In the above-mentioned intelligent visual inspection device for spherical rolling element defects of bearings, the feeding frame is provided with several through slots corresponding one-to-one with the feeding holes. The feeding mechanism includes several feeding plates that slide in the through slots. The feeding plates extend downwards, and the lower ends of several feeding plates are fixed on the lifting plate. The lifting plate is connected to the output shaft of the lifting drive. The top of the feeding plate is provided with an arc groove. The rising of the feeding plate can make the arc groove communicate with the corresponding feeding hole.

[0007] In the above-mentioned intelligent visual inspection device for defects in spherical rolling elements of a bearing, the ball receiving mechanism includes several feeding holes, which are connected to the corresponding loading holes through feeding pipes. The ball receiving mechanism also includes a roller rotatably mounted on the frame, which has several rings of placement holes spaced apart. As the roller rotates, each placement hole can connect with the corresponding feeding hole.

[0008] In the above-mentioned intelligent visual inspection device for spherical rolling element defects of bearings, a support block is provided on the frame, a support arc groove is provided in the support block, a roller rotates in the support block, and a rotating motor connected to the roller is provided on the support block. The ball sorting mechanism is provided in the support block, and several placement holes do not extend out of the two ends of the support arc groove.

[0009] In the above-mentioned intelligent visual inspection device for defects in spherical rolling elements of a bearing, an observation block is also provided on the support block. The observation block is located above the roller, and an observation groove is provided inside the observation block. The detection camera is located above the observation groove, and the detection camera can detect the ball located in the placement hole through the observation groove.

[0010] In the above-mentioned intelligent visual inspection device for defects in spherical rolling elements of a bearing, the ball sorting mechanism includes a qualified channel and a waste channel disposed in a support block, the placement hole is connected to the qualified channel and the waste channel, and the ball sorting mechanism also includes a blocking mechanism that can block the waste channel.

[0011] In the aforementioned intelligent visual inspection device for spherical rolling element defects in bearings, the sealing mechanism includes several sealing rods sliding within a support block. Each ring of placement holes corresponds to one sealing rod, and each sealing rod is connected to a linear actuator mounted on the frame. The sealing rod can extend to seal between the corresponding placement hole and the waste channel.

[0012] In the above-mentioned intelligent visual inspection device for defects in spherical rolling elements of a bearing, the end of the sealing rod is provided with an arc surface, and when the sealing rod extends to the inlet of the waste channel, the arc surface is flush with the support arc groove.

[0013] In the above-mentioned intelligent visual inspection device for spherical rolling element defects of bearings, the frame is further provided with a support rod, the support rod is provided with a connecting piece, the connecting piece is provided with an arc groove, the feeding frame slides on the arc groove through the support shaft, and a recycling frame is provided below the feeding frame. Under its own weight, the outlet of the feeding frame is located at the lower end of the feeding frame.

[0014] In the above-mentioned intelligent visual inspection device for defects in spherical rolling elements of a bearing, the roller is hollow, and an inner cylinder is provided inside the roller. The inner end port of the placement hole abuts against the surface of the inner cylinder. The inner wall of the placement hole and the surface of the inner cylinder are smooth. The roller and the inner cylinder are each connected to a rotating motor, and the roller and the inner cylinder rotate in opposite directions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural diagram of the feeding mechanism and the feeding frame; Figure 3 yes Figure 2 A schematic diagram showing the structure with some parts hidden. Figure 4 This is a schematic diagram of the structure between the ball receiving mechanism and the ball sorting mechanism; Figure 5 yes Figure 4 A cross-sectional view; Figure 6 yes Figure 4 A schematic diagram showing the structure with some parts hidden. Figure 7 yes Figure 6A schematic diagram showing the hidden parts of the structure. In the diagram: Frame 10, Ball Placement Box 11, Feeding Frame 12, Feed Box 13, Feeding Hole 14, Feeding Mechanism 15, Ball Receiving Mechanism 16, Feeding Pipe 17, Detection Camera 18, Ball Classification Mechanism 19, Feeding Plate 20, Lifting Plate 21, Lifting Driver 22, Arc Groove 23, Feeding Hole 24, Roller 25, Placement Hole 26, Support Block 27, Support Arc Groove 28, Observation Block 29, Observation Slot 30, Qualified Channel 31, Waste Channel 32, Sealing Rod 33, Linear Driver 34, Support Rod 35, Connecting Plate 36, Arc Slide 37, Recycling Frame 38, Rotary Motor 39. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] This embodiment provides an intelligent visual inspection device for spherical rolling element defects in bearings, combined with... Figure 1-7 As shown, the system includes a frame 10, on which a ball placement box 11 is provided. A feeding frame 12 is connected to the outlet of the ball placement box 11. The bottom wall of the feeding frame 12 is inclined, and the outlet of the feeding frame 12 is located at the lower end of its bottom wall. A feeding box 13 is connected to the outlet of the feeding frame 12. The feeding box 13 is provided with several feeding holes 14, which are located above the bottom wall of the feeding frame 12. A feeding mechanism 15 is provided at the lower end of the bottom wall of the feeding frame 12. The feeding mechanism 15 is slidably connected to the feeding frame 12 and can push the balls upward to the feeding holes 14. The feeding holes 14 are connected to a ball receiving mechanism 16 through a feeding pipe 17. A detection camera 18 is provided above the ball receiving mechanism 16 on the frame 10. The ball receiving mechanism 16 is connected to a ball sorting mechanism 19 provided on the frame 10.

[0018] In this invention, the balls are placed in the ball placement box 11 and can slide into the feeding frame 12. The feeding mechanism 15 lifts several balls into the feeding hole 14, and then moves them into the ball receiving mechanism 16 through the feeding pipe 17. The outer surface of the balls entering the ball receiving mechanism 16 is inspected by the detection camera 18. After the inspection is completed, the balls are sorted by the ball classification mechanism 19 to separate the qualified and unqualified balls. In this technical solution, there is no need for manual screening or clamping of the balls by the clamping structure, which prevents secondary damage to the balls and enhances work efficiency and improves the detection success rate.

[0019] The feeding frame 12 has several through slots that correspond one-to-one with the feeding holes 14. The feeding mechanism 15 includes several feeding plates 20 that slide in the through slots. The feeding plates 20 extend downwards and the lower ends of several feeding plates 20 are fixed on the lifting plate 21. The lifting plate 21 is connected to the output shaft of the lifting driver 22. The top of the feeding plate 20 is provided with an arc groove 23. The rising of the feeding plate 20 can make the arc groove 23 communicate with the corresponding feeding hole 14.

[0020] In this invention, in the initial state, the arc groove 23 is located in the through groove. The balls entering the feeding frame 12 will move into the arc groove 23 under the inclined guide. During the operation of the feeding mechanism 15, the lifting driver 22 outputs to make the lifting plate 21 move upward with several feeding plates 20. During the movement, the balls will not roll to the sides due to the obstruction of the arc groove 23. When the rising of the feeding plate 20 enables the arc groove 23 to connect with the corresponding feeding hole 14, the balls will automatically roll into the feeding hole 14 and then move to the ball receiving mechanism 16 through the feeding pipe 17.

[0021] The ball receiving mechanism 16 includes a plurality of feed holes 24, which are connected to the corresponding feeding holes 14 through a feed pipe 17. The ball receiving mechanism 16 also includes a roller 25 rotatably mounted on the frame 10. The roller 25 is provided with a plurality of rings of placement holes 26 spaced apart. As the roller 25 rotates, each placement hole 26 can be connected to the corresponding feed hole 24.

[0022] The frame 10 is provided with a support block 27, and the support block 27 is provided with a support arc groove 28. The roller 25 rotates in the support block 27, and the support block 27 is provided with a rotating motor 39 connected to the roller 25. The ball sorting mechanism 19 is provided in the support block 27, and the several placement holes 26 do not extend out of the two ends of the support arc groove 28.

[0023] In this invention, the roller 25 rotates continuously under the output of the rotating motor 39. The balls enter the feed hole 24 through the feed pipe 17. When the roller 25 rotates to the point where the placement hole 26 is connected to the feed hole 24, the balls will enter the placement hole 26. The roller 25 slides in the support arc groove 28 and abuts against the inner wall of the support arc groove 28. During the rotation of the roller 25, the balls are blocked by the support arc groove 28 and will not fall into the placement hole 26. During the rotation of the roller 25 with the balls, they will first pass through the detection camera 18 and be photographed by the detection camera 18 to identify whether the outer surface of the balls is qualified. Then they will be screened by the ball sorting mechanism 19.

[0024] The support block 27 is also provided with an observation block 29, which is located above the roller 25 and has an observation groove 30. The detection camera 18 is located above the observation groove 30 and can detect the ball located in the placement hole 26 through the observation groove 30.

[0025] In this invention, the upper end of the support arc groove 28 has an observation notch, and the inner wall of the placement hole 26 is smooth. As the ball rotates with the roller 15, the ball will rotate in the placement hole 26. After the ball passes through the observation notch, the ball can rotate freely several times in the placement hole 26. The detection camera 18 takes multiple pictures or videos of the ball in the observation notch through the observation groove 30 and judges multiple times whether the outer surface of the same ball is qualified.

[0026] The ball sorting mechanism 19 includes a qualified channel 31 and a waste channel 32 disposed within the support block 27. The placement hole 26 can communicate with the qualified channel 31 and the waste channel 32. The ball sorting mechanism 19 also includes a blocking mechanism that can block the waste channel 32.

[0027] In this invention, the ball continues to move with the roller 15 and passes through the waste channel 32. If the ball fails the test, the blocking mechanism will not block the waste channel 32, and the ball will fall into the waste channel 32. If the ball passes the test, the blocking mechanism will block the waste channel 32, and the ball will not fall into the waste channel 32 and will continue to move with the roller 15. When the ball passes through the qualified channel 31, it will fall into the qualified channel 31, thus completing the screening.

[0028] The sealing mechanism includes several sealing rods 33 that slide within the support block 27. Each ring of placement holes 26 corresponds to one sealing rod 33. Each sealing rod 33 is connected to a linear actuator 34 mounted on the frame 10. The sealing rod 33 can extend to seal between the corresponding placement hole 26 and the waste channel 32.

[0029] In this invention, when a defective ball is detected in a placement hole 26, the corresponding blocking rod 33 will move out of the waste channel 32 port under the output of the linear driver 34 connected to it, and the defective ball will fall into the waste channel 32. When a qualified ball is detected in a placement hole 26, the corresponding blocking rod 33 will move to the waste channel 32 port under the output of the linear driver 34 connected to it and block the waste channel 32. The qualified ball will pass through the waste channel 32 and fall into the qualified channel 31.

[0030] The end of the blocking rod 33 is provided with an arc surface, and when the blocking rod 33 extends to the inlet of the waste channel 32, the arc surface is flush with the support arc groove 28.

[0031] In this invention, when the sealing rod 33 blocks the waste channel 32, the arc surface of its surface will not affect the movement of the ball.

[0032] The frame 10 is also provided with a support rod 35, the support rod 35 is provided with a connecting piece 36, the connecting piece 36 is provided with an arc groove 37, the feeding frame 12 slides on the arc groove 37 through the support shaft, and a recycling frame 38 is provided below the feeding frame 12. Under its own weight, the outlet of the feeding frame 12 is located at the lower end of the feeding frame 12.

[0033] In this invention, after the equipment stops running, if there are still some balls in the feeding frame 12, the worker or the pressure rod pulls the high end of the feeding frame 12 to tilt it to the other side, and the balls will move away from the feeding hole 14 and fall into the recycling frame 38.

[0034] The roller 25 is hollow and has an inner cylinder 40 inside. The inner end of the placement hole 26 abuts against the surface of the inner cylinder 40. The inner wall of the placement hole 26 and the surface of the inner cylinder 40 are smooth. The roller 25 and the inner cylinder 40 are each connected to a rotating motor 39, and the roller 25 and the inner cylinder 40 rotate in opposite directions.

[0035] In this application, during the rotation of the drum 25, the ball inside the placement hole 26 will rotate because it abuts against the inner cylinder 40, thus enabling the rotating ball to be photographed and improving the detection accuracy. Furthermore, during the rotation of the roller 25, the inner cylinder 40 rotates synchronously and in the opposite direction to the rotation of the roller 25, thereby further promoting the rotation of the ball within the placement hole 26. Alternatively, when the placement hole 26 is located at the observation port 15, the roller 25 stops rotating, and the inner cylinder 40 rotates, causing the ball within the placement hole 26 to rotate, thus enabling the detection camera 18 above to continuously observe the rotating ball and improve the recognition accuracy.

[0036] In this invention, each driver can be a pneumatic cylinder or a hydraulic cylinder, or it can use the principle of a lead screw and threaded sleeve for output.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0038] Although this document frequently uses terms such as frame 10, ball placement box 11, feeding frame 12, feeding box 13, feeding hole 14, feeding mechanism 15, ball receiving mechanism 16, feeding pipe 17, detection camera 18, ball sorting mechanism 19, feeding plate 20, lifting plate 21, lifting driver 22, arc groove 23, feeding hole 24, roller 25, placement hole 26, support block 27, support arc groove 28, observation block 29, observation slot 30, qualified channel 31, waste channel 32, sealing rod 33, linear driver 34, support rod 35, connecting piece 36, arc slide 37, recycling box 38, rotating motor 39, etc., these terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. An intelligent visual inspection device for spherical rolling element defects in bearings, comprising a frame (10), characterized in that, The frame (10) is provided with a ball placement box (11), and a feeding frame (12) is connected to the outlet of the ball placement box (11). The bottom wall of the feeding frame (12) is inclined, and the outlet of the feeding frame (12) is located at the lower end of its bottom wall. A feeding box (13) is connected to the outlet of the feeding frame (12). The feeding box (13) is provided with several feeding holes (14). The feeding holes (14) are located above the bottom wall of the feeding frame (12). A feeding mechanism (15) is provided at the lower end of the machine. The feeding mechanism (15) is slidably connected to the feeding frame (12). The feeding mechanism (15) can push the ball upward to the feeding hole (14). The feeding hole (14) is connected to the ball receiving mechanism (16) through the feed pipe (17). The ball receiving mechanism (16) has a detection camera (18) set on the frame (10) above it. The ball receiving mechanism (16) is connected to the ball sorting mechanism (19) set on the frame (10).

2. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 1, characterized in that, The feeding frame (12) is provided with several through slots corresponding to the feeding holes (14). The feeding mechanism (15) includes several feeding plates (20) that slide in the through slots. The feeding plates (20) extend downwards and the lower ends of several feeding plates (20) are fixed on the lifting plate (21). The lifting plate (21) is connected to the output shaft of the lifting driver (22). The top of the feeding plate (20) is provided with an arc groove (23). The rise of the feeding plate (20) can make the arc groove (23) communicate with the corresponding feeding hole (14).

3. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 1, characterized in that, The ball receiving mechanism (16) includes several feed holes (24), and the feed holes (24) are connected to the corresponding feeding holes (14) through feed pipes (17). The ball receiving mechanism (16) also includes a roller (25) rotatably mounted on the frame (10). The roller (25) is provided with several rings of placement holes (26) spaced apart. As the roller (25) rotates, each placement hole (26) can be connected to the corresponding feed hole (24).

4. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 3, characterized in that, The frame (10) is provided with a support block (27), the support block (27) is provided with a support arc groove (28), the roller (25) rotates in the support block (27), and the support block (27) is provided with a rotating motor (39) connected to the roller (25). The ball sorting mechanism (19) is provided in the support block (27), and several placement holes (26) do not extend out of the two ends of the support arc groove (28).

5. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 4, characterized in that, The support block (27) is also provided with an observation block (29), which is located above the roller (25) and has an observation groove (30) inside. The detection camera (18) is located above the observation groove (30) and can detect the ball located in the placement hole (26) through the observation groove (30).

6. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 4, characterized in that, The ball sorting mechanism (19) includes a qualified channel (31) and a waste channel (32) disposed in the support block (27). The placement hole (26) can communicate with the qualified channel (31) and the waste channel (32). The ball sorting mechanism (19) also includes a blocking mechanism that can block the waste channel (32).

7. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 6, characterized in that, The sealing mechanism includes several sealing rods (33) that slide within the support block (27). Each ring of placement holes (26) corresponds to one sealing rod (33). Each sealing rod (33) is connected to a linear driver (34) mounted on the frame (10). The sealing rod (33) can extend to seal between the corresponding placement hole (26) and the waste channel (32).

8. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 7, characterized in that, The end of the sealing rod (33) is provided with an arc surface, and when the sealing rod (33) extends to the inlet of the waste channel (32), the arc surface is flush with the support arc groove (28).

9. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 1, characterized in that, The frame (10) is also provided with a support rod (35), the support rod (35) is provided with a connecting piece (36), the connecting piece (36) is provided with an arc groove (37), the feeding frame (12) slides on the arc groove (37) through the support shaft, and a recycling frame (38) is provided below the feeding frame (12). Under its own weight, the outlet of the feeding frame (12) is located at the lower end of the feeding frame (12).

10. The intelligent visual inspection device for spherical rolling element defects in bearings according to claim 4, characterized in that, The roller (25) is hollow and an inner cylinder (40) is provided inside the roller (25). The inner end port of the placement hole (26) abuts against the surface of the inner cylinder (40). The inner wall of the placement hole (26) and the surface of the inner cylinder (40) are smooth. The roller (25) and the inner cylinder (40) are respectively connected to a rotating motor (39). The roller (25) and the inner cylinder (40) rotate in opposite directions.

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