Surface inspection device for bearing needle roller

Abstract

The utility model relates to the technical field of bearing roller pin detection, in particular to a surface inspection device for a bearing roller pin, which comprises a transmission component, a detection component and a sorting component, the bearing roller pin is placed on the transmission component, and the detection component and the sorting component are sequentially mounted on the transmission component. The conveying assembly comprises a support and a conveying belt arranged on the support, installation molds are evenly arranged on the conveying belt, the bearing roller pins are placed on the installation molds, the detection assembly is fixedly connected to the support, the detection assembly is arranged above the conveying belt, the conveying belt penetrates through the detection assembly, the detection assembly comprises a plurality of detection devices, and the detection devices are fixedly connected to the support. A surface changing shaft is arranged between every two adjacent detection devices, the surface changing shafts can abut against the bearing roller pins, the sorting assembly comprises a mounting frame and an air cylinder, the mounting frame is fixedly connected to the side face of the support, a telescopic rod of the air cylinder is arranged above the conveying belt in a sliding mode, and the telescopic rod of the air cylinder can abut against the end faces of the bearing roller pins.

Description

Technical Field

[0001] This utility model relates to the field of bearing needle roller testing technology, and in particular to a surface inspection device for bearing needle rollers. Background Technology

[0002] Bearing needle rollers are rolling elements used to support the inner and outer rings of a bearing. They are characterized by their thinness and short length. Their main function is to bear and transmit loads during bearing operation, reduce friction, and ensure smooth bearing operation. The surface quality of bearing needle rollers is crucial. During the machining process, various reasons can lead to surface marks, including machining defects, insufficient surface roughness, and burn marks. These marks or defects not only affect the bearing's performance and lifespan but may also impact its stability and safety during use. Therefore, after the bearing needle rollers are machined, surface inspection is necessary to remove defective products and achieve quality control. A common inspection method is to use a surface roughness tester. However, due to the large number of bearing needle rollers, sampling is usually used, leading to insufficient inspection. Mechanical automated inspection methods are also employed, such as Chinese patent CN220913093U, which describes a surface quality inspection device based on bearing needle roller conveying. This device includes a main body with a material box at one end for storing the needle rollers. A support for receiving the needle rollers is located on the outer side of the conveyor belt of the main body, with the support arranged side-by-side on the surface of the conveyor belt. An adapter frame that rotates differentially with the conveyor belt is located on the inner side of the main body. A protruding support is located at the lower end of the material box. A rubber stopper roller for rotating the needle rollers and adjusting their inspection position is located inside the support. This patent utilizes the side-by-side support and the conveyor-type inspection structure to perform continuous inspection of large quantities of needle rollers, ensuring comprehensive inspection. However, removing defective products is difficult, requiring individual removal by operators, increasing labor costs.

[0003] Therefore, it is necessary for those skilled in the art to provide a surface inspection device for bearing needle rollers that can directly reject unqualified products, improve automation and processing efficiency, and reduce production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a surface inspection device for bearing needle rollers, so as to solve the technical problems in the prior art that the surface of bearing needle rollers is prone to processing defects and insufficient surface roughness, resulting in low inspection efficiency and difficulty in removing unqualified products.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a surface inspection device for bearing needle rollers, including a transmission component, a detection component, and a material selection component. Bearing needle rollers are placed on the transmission component. The detection component and the material selection component are sequentially installed on the transmission component. The transmission component includes a bracket and a conveyor belt set on the bracket. Mounting molds are evenly arranged on the conveyor belt. The bearing needle rollers are placed on the mounting molds. The detection component is fixedly connected to the bracket and is set above the conveyor belt, through which the conveyor belt passes. The detection component includes multiple detection devices. A face-changing shaft is provided between two adjacent detection devices. The face-changing shaft can abut against the bearing needle rollers. The material selection component includes a mounting frame and a cylinder. The mounting frame is fixedly connected to the side of the bracket. The cylinder is set above the mounting frame. The telescopic rod of the cylinder is slidably set above the conveyor belt and can abut against the end face of the bearing needle rollers.

[0006] Furthermore, the mounting mold has a square block structure, and the top surface of the mounting mold is recessed with a mounting groove. The cross-section of the mounting groove is semi-circular, and the two ends of the mounting groove penetrate the wall of the mounting mold respectively. The bearing needle roller is connected in the mounting groove.

[0007] Furthermore, the long side of the mounting mold is perpendicular to the conveyor belt's transmission direction, and multiple mounting molds are closely and evenly arranged on the conveyor belt. The length of the bearing needle roller is less than the length of the mounting groove.

[0008] Furthermore, the telescopic rod of the cylinder is aligned with the short side of the mounting mold, and the telescopic rod of the cylinder is higher than the upper plane of the mounting mold.

[0009] Furthermore, the housing has an inverted U-shaped structure, with two opposite sides of the housing mounted on a bracket. An inspection cavity is formed inside the housing between the two opposite sides, with the inspection cavity facing the upper surface of the conveyor belt. The inspection device is mounted on the top wall of the inspection cavity and faces the upper surface of the conveyor belt.

[0010] Furthermore, the testing equipment is a roughness tester.

[0011] Furthermore, the axis of the face-changing shaft is parallel to the axis of the bearing needle roller.

[0012] Furthermore, a rubber sleeve is fitted on the surface of the face-changing shaft that abuts against the bearing needle roller.

[0013] Furthermore, the two ends of the face-changing shaft are rotatably disposed inside the housing, and the two ends of the face-changing shaft respectively penetrate the wall of the housing and extend outward. A small motor is provided on the outer wall of the housing, and the output shaft of the small motor is fixedly connected to the end of the face-changing shaft.

[0014] The beneficial effects of this invention are as follows: This invention achieves large-scale inspection of the bearing needle rollers through a transmission component, ensuring comprehensive inspection and making it suitable for large-scale production. Simultaneously, the transmission component can arrange a large number of bearing needle rollers in an orderly manner and sequentially feed them into the inspection component, thereby ensuring the accuracy of the inspection. The inspection component is equipped with multiple inspection devices and a face-changing shaft, enabling comprehensive inspection of the outer circumference of each individual bearing needle roller, further ensuring the comprehensiveness and stability of the inspection. This invention marks and removes unqualified products using a material selection component, thereby integrating the inspection and sorting processes, improving processing efficiency, and reducing production costs. Compared to existing sampling or automated inspection technologies, this invention not only has a large inspection base and a high degree of automation, but also provides comprehensive, accurate, and efficient inspection, and also has the function of removing unqualified products, thus having broad application prospects. Attached Figure Description

[0015] Figure 1 This is a perspective view of the bearing needle roller surface inspection device of this utility model.

[0016] Figure 2 This is a top view of the bearing needle roller surface inspection device of this utility model.

[0017] Figure 3 yes Figure 2 Sectional view along the middle AA.

[0018] The components in the attached diagram are labeled as follows: 10. Conveying assembly; 11. Support frame; 12. Conveyor belt; 13. Mounting mold; 14. Mounting slot; 20. Detection assembly; 21. Housing; 22. Small motor; 23. Changing shaft; 24. Baffle; 25. Detection cavity; 26. Detection equipment; 30. Material selection assembly; 31. Mounting bracket; 32. Cylinder. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] Please see Figure 1 , Figure 2 This utility model provides a surface inspection device for bearing needle rollers, including a transmission component 10, a detection component 20, and a material selection component 30. Bearing needle rollers are placed on the transmission component 10. The detection component 20 and the material selection component 30 are sequentially installed on the transmission component 10. The detection component 20 is used to inspect the bearing needle rollers, and the material selection component 30 is used to reject unqualified bearing needle rollers, thereby realizing the inspection process of the bearing needle rollers.

[0021] Furthermore, the transmission assembly 10 includes a support 11 and a conveyor belt 12 disposed on the support 11. Mounting molds 13 are evenly distributed on the conveyor belt 12. The bearing needle rollers are placed on the mounting molds 13. The detection assembly 20 is fixedly connected to the support 11 and is disposed above the conveyor belt 12, through which the conveyor belt 12 passes. In use, the conveyor belt 12 drives the mounting molds 13 and the bearing needle rollers thereon to pass through the detection assembly 20. The mounting molds 13 can arrange a large number of bearing needle rollers in an orderly manner and sequentially pass them into the detection assembly 20. The detection assembly 20 is used to detect the bearing needle rollers located in the mounting molds 13, ensuring the sufficiency and accuracy of the detection.

[0022] In this embodiment, the bracket 11 is also equipped with a drive motor (not shown in the figure). The output shaft of the drive motor is fixedly connected to the drive shaft of the conveyor belt 12. The drive motor drives the conveyor belt 12 to rotate, thereby achieving stable transmission of the bearing needle rollers.

[0023] In this embodiment, the mounting mold 13 has a square block structure. The top surface of the mounting mold 13 is recessed with a mounting groove 14. The cross-section of the mounting groove 14 is semi-circular, and both ends of the mounting groove 14 penetrate the wall of the mounting mold 13. The bearing needle rollers are fitted into the mounting groove 14. The length of the bearing needle rollers is less than the length of the mounting groove 14 to ensure convenient and accurate installation. During installation, a feeding machine (not shown) can be used to place the bearing needle rollers directly into the mounting groove 14 from above, or the bearing needle rollers can be pushed into the middle of the mounting groove 14 from one end.

[0024] In this embodiment, the long side of the mounting mold 13 is perpendicular to the transmission direction of the conveyor belt 12, thereby ensuring that the axis of the bearing needle rollers located within the mounting mold 13 is perpendicular to the transmission direction of the conveyor belt 12, thus guaranteeing transmission stability. The mounting mold 13 is made of aluminum alloy, and multiple mounting molds 13 are closely and evenly arranged on the conveyor belt 12, increasing the number of inspections while ensuring the wear resistance and stable operation of the transmission components.

[0025] Further, please refer to Figure 3The detection assembly 20 includes a housing 21 and a detection device 26 disposed within the housing 21. The housing 21 has an inverted U-shaped structure, with two opposite sides of the housing 21 mounted on a bracket 11. An detection cavity 25 is formed inside the housing 21 between the two opposite sides, facing the upper surface of the conveyor belt 12. The detection device 26 is mounted on the top wall of the detection cavity 25 and faces the upper surface of the conveyor belt 12. In use, the bearing needle rollers are mounted on the upper surface of the conveyor belt 12 and pass through the detection cavity 25 under the transmission of the conveyor belt 12. The detection device 26 performs surface inspection on the bearing needle rollers and marks any defective bearing needle rollers.

[0026] In this embodiment, the detection device 26 includes, but is not limited to, a roughness detector. The roughness detector may be a laser roughness detector to measure the roughness of the bearing needle roller surface. Alternatively, a sensor may be used to measure the roughness of the bearing needle roller surface.

[0027] Understandably, when the surface roughness of the bearing needle roller is measured using a laser roughness tester, the surface roughness of the workpiece will generate an analog signal proportional to the surface roughness being measured through the output terminal. After amplification and level conversion, this signal enters the data acquisition system. The DSP chip performs digital filtering and parameter calculation on the acquired data to obtain the measurement result and feeds it back to the processor. For the bearing needle rollers with unqualified measurement results, the processor will mark them so that they can be rejected by the subsequent material selection component 30. At the same time, the measurement result can be read on the LCD display.

[0028] In this embodiment, the processor marks the defective bearing needle rollers using computer numerical control (CNC). By controlling the start and stop of the conveyor belt 12 and its stroke, the defective bearing needle rollers stop when they reach a preset position, and are then removed by the material selection component 30, completing the sorting process. This invention integrates the inspection and sorting processes, improving processing efficiency. Computer control enables unmanned operation, significantly reducing production costs.

[0029] In other embodiments, the detection device 26 is also equipped with a spray marking device, which can spray paint. The processor controls the start and stop of the spray marking device to spray paint on the unqualified bearing needle rollers, thereby facilitating the subsequent removal of the bearing needle rollers with the paint. This method allows the conveyor belt 12 to continuously transmit, reducing downtime and improving processing efficiency.

[0030] Furthermore, the detection device 26 is provided in multiple units, and a face-changing shaft 23 is provided between two adjacent detection devices 26. The axis of the face-changing shaft 23 is parallel to the axis of the bearing needle roller, and the face-changing shaft 23 can abut against the bearing needle roller. In actual use, when the conveyor belt 12 drives the bearing needle roller to move, the detection device 26 can only detect the side of the bearing needle roller facing the detection device 26. Therefore, by setting multiple detection devices 26 and providing face-changing shafts 23 between the detection devices 26, the bearing needle roller is abutted against after passing through a face-changing shaft 23 and rolls along the axis within the mounting mold 13, thereby realizing face changing, increasing the detection range, and thus improving the detection accuracy.

[0031] In this embodiment, a rubber sleeve is provided on the surface of the face-changing shaft 23 that abuts against the bearing needle roller to increase friction and prevent wear.

[0032] In this embodiment, the two ends of the face-changing shaft 23 are rotatably mounted inside the housing 21 using bearings. The two ends of the face-changing shaft 23 respectively penetrate the wall of the housing 21 and extend outward. A small motor 22 is provided on the outer wall of the housing 21. The output shaft of the small motor 22 is fixedly connected to the end of the face-changing shaft 23. The rotation speed of the face-changing shaft 23 is controlled by the small motor 22. After the bearing needle contacts the rotating face-changing shaft 23, it will rotate synchronously with the rotation of the face-changing shaft 23. The faster the rotation speed of the face-changing shaft 23, the larger the angle of rotation of the bearing needle. This achieves control over the rotation angle of the bearing needle and improves the accuracy of detection.

[0033] In this embodiment, the housing 21 is provided with a baffle 24 at the two opening ends opposite to the detection cavity 25. The baffle 24 is made of rubber to reduce the entry of dust and improve the stability of the detection.

[0034] The material selection component 30 includes a mounting frame 31 and a cylinder 32. The mounting frame 31 is fixedly connected to the side of the bracket 11. The cylinder 32 is positioned above the mounting frame 31, and its telescopic rod is slidably positioned above the conveyor belt 12. The telescopic rod of the cylinder 32 faces the short side of the mounting mold 13 and abuts against the end face of the bearing needle roller. The telescopic rod of the cylinder 32 is higher than the upper plane of the mounting mold 13. In use, the processor controls the start and stop of the conveyor belt 12, transporting the defective bearing needle rollers to the position facing the telescopic rod of the cylinder 32. By activating the cylinder 32, the telescopic rod of the cylinder 32 pushes the defective bearing needle rollers out of the mounting mold 13, thus achieving rejection.

[0035] The specific operation of this utility model is as follows: the bearing needle rollers are installed on the upper surface of the conveyor belt 12 and pass through the detection cavity 25 under the transmission of the conveyor belt 12. The detection device 26 performs surface detection on the bearing needle rollers and marks the unqualified bearing needle rollers. By controlling the start and stop and the stroke of the conveyor belt 12, the unqualified bearing needle rollers stop when they reach the preset position, and are rejected by the material selection component 30 to complete the sorting.

[0036] This invention enables large-scale inspection of bearing needle rollers through a transmission component 10, ensuring comprehensive inspection and suitability for mass production. Simultaneously, the transmission component 10 can orderly arrange a large number of bearing needle rollers and sequentially feed them into the inspection component 20, thereby ensuring inspection accuracy. The inspection component 20 is equipped with multiple inspection devices 26 and a face-changing shaft 23, enabling comprehensive inspection of the outer circumference of individual bearing needle rollers, further ensuring comprehensiveness and stability of the inspection. This invention marks defective products and uses a sorting component 30 to remove them, thus integrating the inspection and sorting processes, improving processing efficiency, and reducing production costs. Compared to existing sampling or automated inspection technologies, this invention not only has a large inspection base and a high degree of automation, but also provides comprehensive, accurate, and efficient inspection, and also has the function of removing defective products, showing broad application prospects.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A surface inspection device for bearing needle rollers, comprising a transmission assembly (10), a detection assembly (20), and a material selection assembly (30), wherein bearing needle rollers are placed on the transmission assembly (10), and the detection assembly (20) and the material selection assembly (30) are sequentially mounted on the transmission assembly (10), characterized in that, The transmission assembly (10) includes a support (11) and a conveyor belt (12) mounted on the support (11). Mounting molds (13) are evenly distributed on the conveyor belt (12). The bearing needle rollers are placed on the mounting molds (13). The detection assembly (20) is fixedly connected to the support (11), positioned above the conveyor belt (12), and the conveyor belt (12) passes through the detection assembly (20). The detection assembly (20) includes multiple detection devices (26). A face-changing shaft (23) is provided between two adjacent testing devices (26). The face-changing shaft (23) can abut against the bearing needle roller. The material selection component (30) includes a mounting frame (31) and a cylinder (32). The mounting frame (31) is fixedly connected to the side of the bracket (11). The cylinder (32) is set above the mounting frame (31). The telescopic rod of the cylinder (32) is slidably set above the conveyor belt (12). The telescopic rod of the cylinder (32) can abut against the end face of the bearing needle roller.

2. The surface inspection device for bearing needle rollers according to claim 1, characterized in that, The mounting mold (13) has a square block structure. The top surface of the mounting mold (13) is recessed with a mounting groove (14). The cross-section of the mounting groove (14) is semi-circular. The two ends of the mounting groove (14) penetrate the wall of the mounting mold (13) respectively. The bearing needle roller is connected in the mounting groove (14).

3. The surface inspection device for bearing needle rollers according to claim 2, characterized in that, The long side of the mounting mold (13) is perpendicular to the transmission direction of the conveyor belt (12). Multiple mounting molds (13) are closely and evenly arranged on the conveyor belt (12). The length of the bearing needle roller is less than the length of the mounting groove (14).

4. The surface inspection device for bearing needle rollers according to claim 1, characterized in that, The telescopic rod of the cylinder (32) is directly opposite the short side of the mounting mold (13), and the telescopic rod of the cylinder (32) is higher than the upper surface of the mounting mold (13).

5. The surface inspection device for bearing needle rollers according to claim 1, characterized in that, The detection assembly (20) also includes a housing (21), and the detection device (26) is disposed inside the housing (21). The housing (21) has an inverted U-shaped structure. Two opposite sides of the housing (21) are mounted on a bracket (11). A detection cavity (25) is formed inside the housing (21) between the two opposite sides. The detection cavity (25) faces the upper surface of the conveyor belt (12). The detection device (26) is mounted on the top wall of the detection cavity (25) and faces the upper surface of the conveyor belt (12).

6. The surface inspection device for bearing needle rollers according to claim 1, characterized in that, The testing equipment (26) is a roughness tester.

7. The surface inspection device for bearing needle rollers according to claim 1, characterized in that, The axis of the face-changing shaft (23) is parallel to the axis of the bearing needle roller.

8. The surface inspection device for bearing needle rollers according to claim 7, characterized in that, A rubber sleeve is fitted on the surface of the face-changing shaft (23) that abuts against the bearing needle roller.

9. The surface inspection device for bearing needle rollers according to claim 1, characterized in that, The two ends of the face-changing shaft (23) are rotatably disposed inside the housing (21). The two ends of the face-changing shaft (23) pass through the wall of the housing (21) and extend outward. A small motor (22) is provided on the outer wall of the housing (21), and the output shaft of the small motor (22) is fixedly connected to the end of the face-changing shaft (23).

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