A bearing surface defect sorting apparatus

Abstract

The utility model discloses a bearing surface defect sorting device, including the conveyor no.

Description

Technical Field

[0001] This utility model belongs to the field of bearing inspection technology, and in particular relates to a bearing surface defect sorting device. Background Technology

[0002] In bearing surface defect detection and sorting operations, the conveying equipment is a key link in the bearing circulation process. Its continuous conveying characteristics provide a basis for batch inspection, but also bring about positioning challenges that cannot be ignored.

[0003] During conveyor transport, bearings are prone to lateral shifts, axial tilts, and even overturning due to factors such as conveyor belt vibration, friction between bearings, or deviations in the transport path. This instability leads to unstable positions and states upon arrival at the output end. This instability significantly interferes with the robotic arm's gripping function. The robotic arm needs to precisely grasp the inner ring of the bearing to avoid obstructing the outer surface, providing an unobstructed view for industrial camera inspection. However, bearing shifts or tilts cause deviations between the robotic arm's preset gripping trajectory and the actual position, making successful gripping difficult and potentially causing bearing damage or robotic arm malfunction due to collisions. This coordination problem between transport and gripping directly affects the continuity and accuracy of subsequent inspection processes, ultimately limiting the overall efficiency and inspection precision of the sorting device. Utility Model Content

[0004] The purpose of this utility model is to provide a bearing surface defect sorting device to solve the problem mentioned in the background art that bearings are prone to positional shifts or tilting due to vibration and friction during the conveying process of the conveying equipment, which makes it difficult for the robotic arm to accurately position and grasp the bearings. This, in turn, easily affects the stability and accuracy of subsequent industrial camera detection of bearing surface defects, and reduces the overall sorting efficiency.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A bearing surface defect sorting device includes a conveyor for conveying bearings to be inspected. A pusher seat is provided at the output end of the conveyor. The pusher seat is driven by a driving device. The outer circumference of the surface of the pusher seat is symmetrically provided with a plurality of arc-shaped grooves adapted to the bearings. An anti-deviation component is installed through the surface of the pusher seat. The anti-deviation component is used to limit the bearings entering the arc-shaped grooves.

[0006] Preferably, a mounting frame is provided at the output end of the first conveyor, wherein two second conveyors are symmetrically arranged at the left and right ends of the mounting frame along the axis, and the two second conveyors are respectively used to sort and transport the good and defective bearings after inspection.

[0007] Preferably, a robotic arm is mounted at the end of the inner cavity of the mounting bracket, and the robotic arm is used to grasp the bearing before and after the inspection.

[0008] Preferably, a mounting base is provided below the mounting frame, and the mounting base is used to mount the turntable. The turntable is movably mounted on the surface of the mounting base.

[0009] Multiple sets of industrial cameras are mounted around the end of the turntable, and these cameras work together to inspect the outer surface of the bearing.

[0010] Preferably, side baffles are bolted to both sides of one end of the conveyor, and an arc-shaped baffle is integrally connected to one end of the side baffle. Guide plates are movably connected to the opposite sides of the two side baffles near the push seat via a rotating shaft, and elastic elements are connected to the side walls of the guide plates.

[0011] Preferably, a bracket is fastened to the top of the arc-shaped baffle by bolts, and a drive motor is installed at the end of the bracket. The output end of the connecting plate passes through the bracket and is connected to the connecting plate. The connecting plate is fixedly connected to the surface of the push-fit seat by a support rod.

[0012] Preferably, the anti-deviation component includes an air pump installed at the bottom of the bracket and mounted on a support rod, and the input end of the air pump is rotatably connected to an air pipe, wherein the other end of the air pipe is connected to multiple air suction discs through a branch pipe, and an installation groove is provided through the outer ring of the push seat and the inner cavity of the arc-shaped groove.

[0013] Preferably, a receiving seat is mounted on the output end of the conveyor and on one side of the pusher seat, and the surface of the receiving seat is provided with a pusher groove.

[0014] The bearing surface defect sorting device of this utility model has the following advantages:

[0015] This is a bearing surface defect sorting device. During operation, the bearing to be inspected is conveyed by a conveyor and pre-inspected by a pre-inspection mechanism. The bearing is then conveyed to the output end of the conveyor and guided by side baffles, arc-shaped baffles, and guide plates before falling into the arc-shaped groove of the push-receiving seat. The air pump of the anti-deviation component adsorbs the bearing through an air pipe and air suction plate. The drive motor rotates the push-receiving seat, sending the bearing to the push chute of the receiving seat. A robotic arm grabs the bearing in the push chute, and a turntable on the mounting base drives multiple sets of industrial cameras to inspect the bearing surface. After inspection, the robotic arm places good and defective bearings into the corresponding conveyor for sorting and transfer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a rear view schematic diagram of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the assembly of the turntable and industrial camera structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the assembly of the receiving seat and the pushing seat of this utility model;

[0022] Figure 6 This is a schematic diagram of the assembly of the guide plate and elastic element structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the push-fit seat structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the anti-offset component structure of this utility model.

[0025] Explanation of markings in the diagram: 100, Conveyor 1; 101, Pre-inspection mechanism; 110, Conveyor 2; 120, Mounting frame; 200, Mounting base; 210, Turntable; 220, Industrial camera; 300, Robotic arm; 400, Side baffle; 410, Guide plate; 420, Elastic element; 430, Arc-shaped baffle; 500, Bracket; 510, Drive motor; 520, Connecting plate; 530, Pushing seat; 531, Mounting groove; 600, Air pump; 610, Air pipe; 620, Air suction plate; 700, Receiving seat; 710, Pushing chute. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0031] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a bearing surface defect sorting device.

[0032] like Figures 1-8As shown, the present invention discloses a bearing surface defect sorting device, including a conveyor 100 for conveying bearings to be inspected; a mounting frame 120 is mounted on the output end of the conveyor 100, and the mounting frame 120 is used to assemble components such as a robotic arm 300 and a mounting base 200; two conveyors 110 are symmetrically arranged along the axis at the left and right ends of the mounting frame 120, and the two conveyors 110 are used to sort and transport the good and defective bearings after inspection, respectively.

[0033] As a further optimization of this solution, a pre-inspection mechanism 101 is installed at the fixed end of conveyor 100. This pre-inspection mechanism 101 consists of a mounting frame and a vision inspection camera installed inside it. It is used to predict the bearings passing through conveyor 100. Vision inspection uses machines to replace human eyes for measurement and judgment. Vision inspection refers to the use of machine vision products, i.e., image acquisition devices (either CMOS or CCD), to convert the captured target into an image signal, which is then transmitted to a dedicated image processing system. Based on pixel distribution and information such as brightness and color, this signal is converted into a digital signal. The image system performs various calculations on these signals to extract the target's features, and then controls the on-site equipment actions based on the judgment results.

[0034] At the same time, such as Figure 3 As shown, a robotic arm 300 is mounted on the end of the inner cavity of the mounting bracket 120. The robotic arm 300 is used to grip the bearings before and after inspection so that they can be inspected by the industrial camera 220, and also facilitates the sorting of good and bad products after inspection.

[0035] Specifically, the robotic arm 300 adopts a multi-joint structure design, with a three-jaw expansion gripping mechanism at its end that adapts to the inner ring of the bearing. This mechanism is driven by a micro servo motor, and the three claws can synchronously extend and retract radially. During gripping, the robotic arm moves above the push groove 710 according to a preset program. After the claws retract, they extend into the inner ring of the bearing. Subsequently, the servo motor drives the claws to expand outward until they are tightly fitted with the inner wall of the inner ring, achieving stable clamping of the bearing. During the gripping process, the claws do not contact the outer surface of the bearing, avoiding obstruction of the detection area. Since the robotic arm 300 is existing technology, its structure will not be described in detail in this solution.

[0036] like Figures 1 to 3As shown, a mounting base 200 is provided below the mounting bracket 120, and the mounting base 200 is used to install the turntable 210. The turntable 210 is movably mounted on the surface of the mounting base 200. The turntable 210 can be movably mounted to the surface of the mounting base 200 via bearings. A motor is provided below the mounting base 200. In this scheme, the motor is preferably a geared motor. The output end of the motor can be directly connected to the bottom of the turntable 210, or a pulley and belt can be used as intermediate transmission to connect the motor and the turntable 210.

[0037] Specifically, there are two sets of pulleys. One set is fitted onto the output end of the motor, and the other set is fitted onto the bottom shaft end of the turntable 210. The belt is fitted into the two sets of pulleys. When the motor is working, it can transmit power to the turntable 210 through the cooperation of the belt and pulleys, thereby driving the turntable 210 to rotate.

[0038] Multiple sets of industrial cameras 220 are mounted around the end of the turntable 210. The multiple sets of industrial cameras 220 work together to inspect the outer surface of the bearing.

[0039] Specifically, as the turntable 210 drives the industrial camera 220 to rotate, in order to prevent the cable on the industrial camera 220 from getting tangled, a conductive slip ring can be installed in the turntable 210. Its function is to continuously supply power to the industrial camera 220 while it is rotating. However, how the conductive slip ring supplies power to the rotating industrial camera 220 is existing technology, and this solution will not describe it further.

[0040] As a further optimization of this solution, a light source is fitted onto the surface of the turntable 210 to illuminate the surrounding environment, facilitating the industrial camera 220 to inspect surface defects of the bearing.

[0041] Industrial cameras 220 are arranged in a circular array around the end of turntable 210, with each group of cameras corresponding to a different angle on the outer surface of the bearing. During inspection, the robotic arm 300 suspends the bearing in the center area of ​​turntable 210, and turntable 210 drives the industrial cameras 220 to rotate at a constant speed. At the same time, the light source on the surface of turntable 210 provides uniform illumination. During the rotation, the industrial cameras 220 take multi-angle, continuous pictures of the outer surface of the bearing, and the image signals are transmitted to the image processing system in real time. The system analyzes pixel distribution, brightness changes, and color differences to identify defects such as cracks and scratches. Finally, based on the inspection results, the system controls the robotic arm 300 to sort the bearings to the corresponding conveyor 110.

[0042] The industrial camera 220 can be implemented using a high-speed area array CCD camera or a CMOS industrial inspection camera from the existing technology, which can meet the needs of rapid and accurate imaging of defects on the outer surface of the bearing. However, since the industrial camera 220 is an existing technology, this solution will not describe its specific structure in detail.

[0043] like Figure 6 As shown, side baffles 400 are bolted to both sides of the end of conveyor 100. The side baffles 400 are actually installed on the side wall of the end of conveyor 100 and are not directly connected to the conveyor belt. An arc-shaped baffle 430 is integrally connected to one end of each side baffle 400. The side baffles 400 and the arc-shaped baffle 430 work together to shield the bearings on conveyor 100, preventing them from falling off the side of conveyor 100. The two side baffles 400 are close together and push against each other. A guide plate 410 is movably connected to the opposite side of the seat 530 via a rotating shaft, and an elastic element 420 is connected to the side wall of the guide plate 410. The end of the elastic element 420 away from the guide plate 410 is fixedly connected to the side opposite to the side baffle 400. The elastic element 420 and the guide plate 410 cooperate to guide the bearing conveyed by the conveyor 100, so that it can be concentrated towards the middle of the output end of the conveyor 100 without the user having to manually adjust the bearing to the position of the conveyor 100.

[0044] As a further optimization of this solution, the side baffle 400 can also be installed on the two conveyors 2 110 to shield the bearings on the conveyors 2 110 after sorting, so as to prevent the sorted bearings from falling off the side of the conveyors 2 110.

[0045] As a further optimization of this solution, a pull rope is connected to the side wall of the guide plate 410 and the inner surface of the elastic member 420. The other end of the pull rope extends to the outside of the conveyor 100. By pulling the rope, the elastic member 420 can be pulled and compressed, thereby changing the tilt angle of the guide plate 410. This allows the guide plate 410 to effectively guide bearings of different specifications when the conveyor 100 is conveying them.

[0046] The sidewalls of the guide plate 410 can be made smooth to prevent the guide plate 410 from interfering with the movement of the bearings under the conveyor.

[0047] A push-fit seat 530 is provided at the output end of the conveyor 100. The push-fit seat 530 is driven by a drive device. The outer circumference of the surface of the push-fit seat 530 is symmetrically provided with several arc-shaped grooves that are adapted to the bearings. The bearings conveyed by the conveyor 100 fall into the mounting groove 531, which limits the bearing position. A bracket 500 is fastened to the top of the arc-shaped baffle 430 by bolts. A drive motor 510 is installed at the end of the bracket 500. The fixed end of the drive motor 510 is fastened to the surface of the bracket 500 by bolts. The output end of the connecting plate 520 passes through the bracket 500 and is connected to the connecting plate 520. The connecting plate 520 is fixedly connected to the surface of the push-fit seat 530 by a support rod. When the drive motor 510 is working, it can transmit power to the push-fit seat 530 through the connecting plate 520, thereby driving the push-fit seat 530 to rotate.

[0048] The surface of the pusher seat 530 is equipped with an anti-displacement component, which limits the bearing entering the arc groove. Before the pusher seat 530 is rotated under force, the anti-displacement component tightly adheres to the adjacent bearing, so that one side of the bearing is in close contact with the inner wall of the adjacent arc groove. Then, it rotates 180° to put the bearing to be tested into the push slide 710, so that the robotic arm 300 can pick it up and use the industrial camera 220 to detect surface defects. This design can avoid the difficulty for the robotic arm 300 to grasp the bearing when the conveyor 100 is in motion. At the same time, the design of multiple pusher seats 530 can also prevent the bearings conveyed by the conveyor 100 from accumulating at the output end of the conveyor 100, thus avoiding damage to the bearing surface. This enables continuous testing of multiple bearings and sorting of bearings according to their quality.

[0049] The anti-deviation component includes an air pump 600 mounted on the bottom of the bracket 500 and connected by a support rod. The air pump 600 is located above the connecting plate 520, and the input end of the air pump 600 is rotatably connected to an air pipe 610. The other end of the air pipe 610 is connected to multiple suction discs 620 through a branch pipe. The interior of the push-fit seat 530 is hollow and is used to house the air pipe 610 and the branch pipe. The outer ring of the push-fit seat 530 and the inner cavity of the arc-shaped groove are provided with a mounting groove 531 for mounting the suction discs 620.

[0050] As a further optimization of this solution, a solenoid valve is installed on the surface of the branch pipe of the trachea 610, which can control the opening and closing of the corresponding branch pipe.

[0051] A receiving seat 700 is mounted on the output end of the conveyor 100 and on one side of the pusher seat 530. The surface of the receiving seat 700 is provided with a pusher groove 710. The height of the receiving seat 700 is lower than that of the pusher seat 530. The receiving seat 700 is tilted so that the bearing pushed by the pusher seat 530 can fall into the pusher groove 710, so that the robotic arm 300 can clamp the bearing. Finally, the bearing is inspected by the industrial camera 220.

[0052] As a further optimization of this solution, the retractor 700 can also be driven by a geared motor, and the retractor 700 is mounted on the fixed end of the mounting base 200 via a support plate.

[0053] The working principle of a bearing surface defect sorting device is as follows: When the bearing surface defect sorting device is working, the bearing to be inspected is conveyed by conveyor 100 and pre-inspected by pre-inspection mechanism 101. Then the bearing is conveyed to the output end of conveyor 100, and after being guided by side baffle 400, arc baffle 430 and guide plate 410, it falls into the arc groove of push seat 530. The suction pump 600 of the anti-deviation component adsorbs the bearing through air pipe 610 and suction plate 620. The drive motor 510 drives the push seat 530 to rotate and send the bearing to the push slide 710 of receiving seat 700. The robotic arm 300 grabs the bearing in the push slide 710. The turntable 210 on the mounting base 200 drives multiple sets of industrial cameras 220 to inspect the bearing surface. After the inspection is completed, the robotic arm 300 puts the good and defective products into the corresponding conveyor 110 for sorting and transmission.

[0054] 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 bearing surface defect sorting device, characterized in that: The device includes a conveyor (100) for conveying bearings to be tested. The output end of the conveyor (100) is provided with a pusher seat (530). The pusher seat (530) is driven by a drive device. The outer circumference of the surface of the pusher seat (530) is symmetrically provided with several arc-shaped grooves adapted to the bearings. An anti-deviation component is installed through the surface of the pusher seat (530). The anti-deviation component is used to limit the bearings entering the arc-shaped grooves.

2. The bearing surface defect sorting device according to claim 1, characterized in that: The output end of the conveyor (100) is provided with a mounting frame (120), wherein two conveyors (110) are symmetrically arranged at the left and right ends of the mounting frame (120) along the axis, and the two conveyors (110) are used to sort and transport the good and bad bearings after inspection.

3. The bearing surface defect sorting device according to claim 2, characterized in that: A robotic arm (300) is mounted on the end of the inner cavity of the mounting bracket (120), and the robotic arm (300) is used to grasp the bearing before and after the inspection.

4. The bearing surface defect sorting device according to claim 3, characterized in that: A mounting base (200) is provided below the mounting frame (120), and the mounting base (200) is used to install the turntable (210). The turntable (210) is movably mounted on the surface of the mounting base (200). Multiple sets of industrial cameras (220) are mounted around the end of the turntable (210), and the multiple sets of industrial cameras (220) work together to inspect the outer surface of the bearing.

5. The bearing surface defect sorting device according to claim 4, characterized in that: Both sides of the conveyor (100) are fastened with bolts to side baffles (400), and one end of the side baffles (400) is integrally connected to an arc baffle (430). The two side baffles (400) are movably connected to guide plates (410) on opposite sides near the push seat (530) via a rotating shaft, and the side wall of the guide plate (410) is connected to an elastic element (420).

6. The bearing surface defect sorting device according to claim 5, characterized in that: A bracket (500) is fastened to the top of the arc-shaped baffle (430) by bolts, and a drive motor (510) is installed at the end of the bracket (500). The output end of the connecting plate (520) passes through the bracket (500) and is connected to the connecting plate (520). The connecting plate (520) is fixedly connected to the surface of the push seat (530) by a support rod.

7. The bearing surface defect sorting device according to claim 6, characterized in that: The anti-deviation component includes an air pump (600) installed at the bottom of the bracket (500) and mounted on a support rod. The input end of the air pump (600) is sealed and rotatably connected to an air pipe (610). The other end of the air pipe (610) is connected to multiple air suction discs (620) through a branch pipe. The outer ring of the push seat (530) and the inner cavity of the arc groove are provided with an installation groove (531).

8. The bearing surface defect sorting device according to claim 1, characterized in that: A receiving seat (700) is mounted on the output end of the conveyor (100) and on one side of the pusher seat (530), and a pusher groove (710) is provided on the surface of the receiving seat (700).

Images