Self-adapting reinforced grinding device for automatic clamping of bearing batch

Abstract

The application provides a bearing batch automatic clamping self-adaptive reinforced grinding device, which comprises a central processing unit, a rack and a bearing automatic dismounting device, a material circulating device and a cold spraying processing device installed on the rack, the central processing unit is electrically connected with the bearing automatic dismounting device, the material circulating device and the cold spraying processing device respectively, a backing plate is horizontally arranged in the interior of the rack, the backing plate divides the space in the interior of the rack into an upper part and a lower part, a partition plate is vertically arranged in the lower space, one end of the partition plate is connected with the backing plate, and the other end is connected with the bottom of the rack. The application realizes the automation of the whole process from feeding, mounting, dismounting to discharging of the bearing, saves the bearing in a storage box after processing, does not need manual mounting and dismounting, avoids wasting time and manpower, and saves labor cost.

Description

Technical Field

[0001] This invention relates to the field of bearing processing technology, and in particular to an adaptive strengthening grinding device for automatic batch clamping of bearings. Background Technology

[0002] Strengthening grinding technology is a high-performance precision machining technology for metal materials based on composite processing methods, which is resistant to fatigue, corrosion and wear. Its basic principle is to uniformly mix steel balls, grinding powder and grinding fluid in a certain ratio, and combine them with high-pressure gas to form a solid-liquid-gas three-phase mixed flow, which is sprayed onto the surface of the workpiece at a certain angle, so that the surface of the workpiece produces a certain plastic deformation and a strengthening layer with residual compressive stress, thereby improving the performance of the parts.

[0003] However, with the continuous improvement of processing quality and technical requirements, the above processing method still has the following shortcomings: due to the lack of automatic loading and unloading devices, the workpieces to be processed need to be placed manually before processing and removed manually after processing. Moreover, only one workpiece can be processed at a time, which not only wastes manpower but also wastes time in loading and unloading, resulting in extremely low processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies. This invention proposes an adaptive strengthening grinding device for batch automatic clamping of bearings. It improves and upgrades the workpiece loading and unloading section of existing strengthening grinding machines, achieving automatic feeding, installation, disassembly, and unloading of bearings. This significantly reduces labor costs and processing time, resulting in a substantial increase in processing efficiency. Furthermore, after the workpieces undergo jet strengthening grinding, they are then subjected to cold spraying, creating a corrosion-resistant and friction-resistant coating on the bearing workpiece surface. This composite processing method effectively guarantees the processing results.

[0005] This invention provides an adaptive strengthening grinding device for batch automatic clamping of bearings, comprising: a central processing unit, a frame, and an automatic bearing disassembly device, a material circulation device, and a cold spraying device mounted on the frame. The central processing unit is electrically connected to the automatic bearing disassembly device, the material circulation device, and the cold spraying device. A pad is horizontally arranged inside the frame, which divides the space inside the frame into an upper part and a lower part. A partition is vertically arranged in the lower part of the frame, with one end of the partition connected to the pad and the other end connected to the bottom of the frame.

[0006] Furthermore, the automatic bearing disassembly device includes: an unloading assembly, a moving assembly, and a bearing storage box. The unloading assembly is fixedly mounted on the frame, the moving assembly is slidably connected to the frame, and the bearing storage box is located on the frame and cooperates with the unloading assembly.

[0007] Furthermore, the unloading assembly includes: a laser displacement sensor, a bearing turntable, a bearing container, a loading ramp, a transport ramp, a baffle, and a discharge pipe. The laser displacement sensor is fixedly mounted on the frame. A rotating shaft is located at the center of the bearing turntable, which is disposed inside the bearing container. The loading ramp is connected to the bearing container, and the transport ramp is connected to the loading ramp. The baffle is located at the end of the transport ramp. A discharge port is provided on the pad, and the discharge pipe communicates with the discharge port. The bearing storage box is located at the bottom of the discharge channel.

[0008] Furthermore, the bearing turntable is evenly provided with multiple bearing placement slots for placing bearings; the bearing container is provided with a discharge port, and the feeding ramp is connected to the discharge port.

[0009] Furthermore, the moving component includes: a sliding guide rail, a slider, and a bearing clamping part. The sliding guide rail is fixedly mounted on the frame, the slider is connected to the sliding guide rail, and the bearing clamping part is connected to the slider.

[0010] Furthermore, the bearing clamping part includes: a pressure head, a stress sensor, a robot arm, a hydraulic rod, a rotating shaft, and a stud. One end of the stress sensor is connected to the pressure head, and the other end is connected to the robot arm. One end of the hydraulic rod is connected to the robot arm, and the other end is connected to the rotating shaft. The rotating shaft is connected to the slider through the stud.

[0011] Furthermore, a pressure stress sensor is installed at the bottom of the bearing storage box to detect the weight of the bearings in the bearing storage box and thus determine whether the bearing storage box is full.

[0012] Furthermore, the material circulation device includes: a pressure cylinder, a pressurizing pipe, a grinding hopper, a grinding cylinder, a feeding pipe, a material nozzle, a material transport pipe, and a discharge pipe. The pressure cylinder is equipped with a button. The pressure cylinder is connected to the pressurizing pipe, the pressurizing pipe is connected to the grinding cylinder, the grinding cylinder is connected to the grinding hopper through a fastening valve, the grinding hopper is connected to the pad plate, the bottom of the grinding cylinder is connected to the feeding pipe, the feeding pipe is connected to the discharge pipe through the material transport pipe, and the discharge pipe is connected to the material nozzle.

[0013] Furthermore, the cold spraying processing device includes: a cold spraying tank, a pressure cap, a transport pipeline, a rubber gasket, and a spray nozzle. The cold spraying tank is connected to the pressure cap, the pressure cap is connected to the transport pipeline, and the transport pipeline is connected to the spray nozzle.

[0014] Furthermore, the cold spraying processing device also includes a rubber gasket, and the transport pipe is connected to the spray nozzle through the rubber gasket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The entire enhanced grinding device is controlled by a central controller, and the bearing automatic disassembly device automates the entire process of bearing loading, installation, disassembly and unloading, demonstrating a high degree of intelligence.

[0017] By combining enhanced grinding technology and cold spraying technology through a material circulation device and a cold spraying processing device, the cumbersome process of transporting bearings through enhanced grinding to the next process is avoided, thereby improving the processing efficiency of bearings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the internal structure of the adaptive strengthening grinding device for automatic batch clamping of bearings according to an embodiment of the present invention;

[0020] Figure 2 This is a top view schematic diagram of the unloading assembly according to an embodiment of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the material circulation device according to an embodiment of the present invention;

[0022] Figure 4 This is a front view schematic diagram of the bearing clamping part according to an embodiment of the present invention;

[0023] Figure 5 This is a flowchart illustrating the process of the adaptive strengthening grinding device for automatic batch clamping of bearings according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1: Frame; 2: Cold spray can; 3: Pressure cap; 4: Transport pipe; 5: Pad; 6: Rubber gasket; 7: Spray nozzle; 8: Slider; 9: Robotic arm; 10: Material nozzle; 11: Discharge pipe; 12: Sliding guide rail; 13: Laser displacement sensor; 14: Bearing turntable; 15: Bearing container; 16: Bearing; 17: Loading ramp; 18: Transport ramp; 19: Discharge pipe; 20: Bearing storage box; 21: Button; 22: Pressure cylinder; 23: Grinding hopper; 24: Pressure pipe; 25: Fastening valve; 26: Grinding cylinder; 27: Feeding pipe; 28: Baffle; 29: Rotating shaft; 30: Material transport pipe; 31: Stud; 32: Rotating shaft; 33: Hydraulic rod; 34: Stress sensor; 35: Pressure head; 36: Baffle. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 limiting this invention.

[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 the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figures 1 to 5As shown, this invention provides an adaptive strengthening grinding device for batch automatic clamping of bearings, including a central processing unit, a frame 1, and an automatic bearing disassembly device, a material circulation device, and a cold spraying device mounted on the frame 1. The central processing unit is electrically connected to the automatic bearing disassembly device, the material circulation device, and the cold spraying device. A pad 5 is horizontally arranged inside the frame 1, dividing the space inside the frame 1 into an upper and a lower part. A partition 28 is vertically arranged in the lower space, with one end of the partition 28 connected to the pad 5 and the other end connected to the bottom of the frame 1.

[0030] In some preferred embodiments, the automatic bearing disassembly device includes an unloading assembly, a moving assembly, and a bearing storage box 20. The unloading assembly is fixedly mounted on the frame 1, the moving assembly is slidably connected to the frame 1, and the bearing storage box 20 is located on the frame 1 and cooperates with the unloading assembly. A pressure stress sensor is installed at the bottom of the bearing storage box 20 to detect the weight of the bearings 16 in the bearing storage box 20 to determine whether the bearing storage box 20 is full.

[0031] In some preferred embodiments, the unloading assembly includes a laser displacement sensor 13, a bearing turntable 14, a bearing container 15, a loading ramp 17, a transport ramp 18, a baffle 36, and a discharge pipe 19. The laser displacement sensor 13 is fixedly mounted on the frame 1. A rotating shaft 29 is located at the center of the bearing turntable 14, which is situated inside the bearing container 15. The loading ramp 17 is connected to the bearing container 15, and the transport ramp 18 is connected to the loading ramp 17. The baffle 36 is located at the end of the transport ramp 18. A discharge port is provided on the pad 5, and the discharge pipe 19 communicates with the discharge port. The bearing storage box 20 is located at the bottom of the discharge channel. The bearing turntable 14 has multiple bearing placement slots evenly distributed for placing bearings 16. Preferably, there are eight bearing placement slots, meaning one slot is distributed every 45° on the bearing turntable 14. The bearing container 15 has a discharge port, and the loading ramp 17 communicates with the discharge port.

[0032] Whenever a bearing placement slot rotates to the top of the discharge port of the bearing container 15, the bearing 16 in the bearing placement slot falls down and passes through the loading ramp 17 and the transport ramp 18 in sequence, thereby realizing the automatic unloading of the bearing 16. After processing, the bearing is stored in the bearing storage box 20 through the unloading pipe 19 via the bearing clamping part. No manual loading and unloading is required, which avoids wasting time and manpower and saves labor costs.

[0033] In some preferred embodiments, the moving component includes a sliding guide rail 12, a slider 8, and a bearing clamping part. The sliding guide rail 12 is fixedly mounted on the frame 1, the slider 8 is connected to the sliding guide rail 12, and the bearing clamping part is connected to the slider 8. The bearing clamping part includes a pressure head 35, a stress sensor 34, a robotic arm 9, a hydraulic rod 33, a rotating shaft 32, and a stud 31. One end of the stress sensor 34 is connected to the pressure head 35, and the other end is connected to the robotic arm 9. One end of the hydraulic rod 33 is connected to the robotic arm 9, and the other end is connected to the rotating shaft 32. The rotating shaft 32 is connected to the slider 8 via the stud 31.

[0034] In some preferred embodiments, the material circulation device includes: a pressure cylinder 22, a pressurizing pipe 24, a grinding hopper 23, a grinding cylinder 26, a feeding pipe 27, a material nozzle 10, a material transport pipe 30, and a discharge pipe 11. The pressure cylinder 22 is equipped with a button 21. The pressure cylinder 22 is connected to the pressurizing pipe 24, which is connected to the grinding cylinder 26. The grinding cylinder 26 is connected to the grinding hopper 23 via a fastening valve 25. The grinding hopper 23 is connected to a pad 5. The bottom of the grinding cylinder 26 is connected to the feeding pipe 27, which is connected to the discharge pipe 11 via the material transport pipe 30. The discharge pipe 11 is connected to the material nozzle 10.

[0035] In some preferred embodiments, the cold spraying apparatus includes a cold spray tank 2, a pressure cap 3, a transport pipe 4, a spray nozzle 7, and a rubber gasket 6. The cold spray tank 2 is connected to the pressure cap 3, the pressure cap 3 is connected to the transport pipe 4, and the transport pipe 4 is connected to the spray nozzle 7 via the rubber gasket 6. After the workpiece undergoes jet-enhanced grinding, cold spraying is performed to create a corrosion-resistant and friction-resistant coating on the surface of the bearing workpiece. This composite processing method effectively ensures the processing effect and improves the surface quality of the workpiece.

[0036] The working principle of this invention is as follows:

[0037] Before operation, the entire equipment is powered on. Pressing button 21 causes the pressure generated by pressure cylinder 22 to be delivered to grinding material cylinder 26 through pressure pipe 24. At this time, atmospheric pressure is generated in grinding material cylinder 26, which forces the grinding material in grinding material cylinder 26 to feed pipe 27. Through material transport pipe 30 and discharge pipe 11, the material is delivered to material nozzle 10, where it strikes the surface of bearing 16. Then, due to gravity, it falls into grinding hopper 23 and returns to grinding material cylinder 26, thus realizing the recycling of grinding material.

[0038] Before the device officially starts working, the unprocessed bearings 16 are placed in batches into the bearing placement slots of the bearing turntable 14 in the bearing container 15. At this time, the preparation work is complete and the bearings 16 are waiting to be processed. When one bearing 16 is processed, the bearing turntable rotates 45°, which brings the next bearing 16 to the discharge port and onto the feeding ramp 17.

[0039] During operation, the laser displacement sensor 13 measures the distance L between the laser probe and the robot arm 9. When the distance L equals the distance D1 from the laser probe to the bearing center axis at the baffle 36, the bearing turntable 14 rotates 45°, and the bearing 16 then slides from the bearing container 15 to the loading ramp 17, and rolls down the transport ramp 18 to the baffle 36. Otherwise, the slider 8 continues to move to the left. When the bearing 16 reaches the baffle 36, the robot arm 9 extends forward to the inner ring of the bearing via four hydraulic rods 33. Subsequently, four pressure heads 35 expand outward from the center, applying pressure to the inner ring of the bearing. Pressure sensors 34 are located at the base of the pressure heads 35. The pressure heads 35 continuously receive information as they expand. When the actual pressure F equals the interaction force between the circumferentially moving pressure heads 35 and the bearing 16, the robot arm detects the pressure. If the pressure is applied, stop applying pressure; otherwise, robotic arm 9 will continue to apply pressure.

[0040] Wherein, the distance from the laser probe to the baffle 36 is a, the diameter of the robot arm 9 is d, the distance from the center of the discharge port to the baffle 36 is b, and the inner diameter of the bearing 16 is R1, then the distance from the laser probe to the bearing center axis at the baffle 36 is D1 = a - R1 - d / 2, and the center distance from the laser probe to the discharge port is D2 = a + bd / 2; the deformation coefficient of the pressure head 35 is K, the torque when the bearing 16 rotates is T, the pressure between the bearing 16 and the bottom of the robot arm 9 is F1, the outer diameter of the bearing 16 is R2, and the circumferential friction coefficient between the pressure head 35 and the inner diameter of the bearing 16 is... μ 1. The radial friction coefficient between the pressure head 35 and the inner diameter of the bearing 16 is... μ 2.

[0041] Then, the hydraulic rod 33 retracts back to its original position, and the slider 8 moves to the right to the processing area. At this time, the central axis of the bearing, the central axis of the material nozzle 10, and the central axis of the spray nozzle 7 intersect at one point. The robot arm 9 rotates with the rotating shaft 32 at a speed of 60 r / min. The abrasive material sprayed from the material nozzle 10 continuously impacts the bearing surface for strengthening and grinding. Afterward, the abrasive material falls into the abrasive hopper 23 under the action of gravity and enters the abrasive cylinder 26. After being subjected to high pressure, it enters the material conveying pipe 30 again for repeated recycling.

[0042] When the set processing time is reached and the enhanced grinding process is completed, the central processing unit controls the material nozzle 10 to close and the spray nozzle 7 to open for cold spraying. The coating powder is stored in the cold spray tank 2, which is pressurized by the pressure cover 3 to form a gas-solid two-phase gas flow that travels through the transport pipe 4 to the spray nozzle 7, where the spray nozzle 7 begins operation. After the cold spraying process reaches the predetermined time, the central processing unit controls the spray nozzle 7 to close, and the slider 8 moves to the left. The laser displacement sensor 13 continuously receives distance information. When the actual distance L is equal to the center distance D2 from the laser probe to the square discharge port, the robot arm 9 tilts downwards by 30° via the stud 31; otherwise, the slider 8 continues to move to the left. The bearing slides down along the robot arm 9, rolls through the drop pipe 19 into the bearing storage box 20, thus completing the entire processing flow of one bearing. Subsequently, the robot arm 9 continues to move to the left, and the laser displacement sensor 13 measures the distance to proceed with the processing of the next bearing, thereby achieving fully automated bearing processing.

[0043] The bearing storage box 20 is equipped with a pressure stress sensor at the bottom, which can detect the weight of the bearings 16 in the bearing storage box 20 to determine whether the bearing storage box 20 is full. If the number of processed bearings 16 reaches the specified number, it will send feedback to the central processor, and the system will disconnect the power supply to realize automatic loading and unloading and automatic composite processing.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adaptive strengthening grinding device for batch automatic clamping of bearings, characterized in that, include: A central processing unit, a frame (1), and an automatic bearing disassembly device, a material circulation device, and a cold spraying processing device installed on the frame (1). The central processing unit is electrically connected to the automatic bearing disassembly device, the material circulation device, and the cold spraying processing device, respectively. A pad (5) is horizontally arranged inside the frame (1). The pad (5) divides the space inside the frame (1) into an upper part and a lower part. A partition (28) is vertically arranged in the lower part. One end of the partition (28) is connected to the pad (5), and the other end is connected to the bottom of the frame (1). The automatic bearing disassembly device includes: a discharge assembly, a moving assembly, and a bearing storage box (20). The discharge assembly is fixedly mounted on the frame (1), the moving assembly is slidably connected to the frame (1), and the bearing storage box (20) is located on the frame (1) and cooperates with the discharge assembly. The unloading assembly includes: a laser displacement sensor (13), a bearing turntable (14), a bearing container (15), a loading ramp (17), a transport ramp (18), a baffle (36), and a discharge pipe (19). The laser displacement sensor (13) is fixedly mounted on the frame (1). A rotating shaft (29) is provided at the center of the bearing turntable (14). The bearing turntable (14) is located inside the bearing container (15). The loading ramp (17) is connected to the bearing container (15). The transport ramp (18) is connected to the loading ramp (17). The baffle (36) is located at the end of the transport ramp (18). A discharge port is provided on the pad (5). The discharge pipe (19) is connected to the discharge port. The bearing storage box (20) is located at the bottom of the discharge pipe. The moving component includes: a sliding guide rail (12), a slider (8) and a bearing clamping part. The sliding guide rail (12) is fixedly mounted on the frame (1). The slider (8) is connected to the sliding guide rail (12). The bearing clamping part is connected to the slider (8). The bearing clamping part includes: a pressure head (35), a stress sensor (34), a robot (9), a hydraulic rod (33), a rotating shaft (32), and a stud (31). One end of the stress sensor (34) is connected to the pressure head (35), and the other end is connected to the robot (9). One end of the hydraulic rod (33) is connected to the robot (9), and the other end is connected to the rotating shaft (32). The rotating shaft (32) is connected to the slider (8) through the stud (31).

2. The adaptive strengthening grinding device for batch automatic clamping of bearings according to claim 1, characterized in that, The bearing turntable (14) is provided with multiple bearing placement slots for placing bearings (16); the bearing container (15) is provided with a discharge port, and the feeding ramp (17) is connected to the discharge port.

3. The adaptive strengthening grinding device for batch automatic clamping of bearings according to claim 1, characterized in that, The bearing storage box (20) is equipped with a pressure stress sensor at the bottom to detect the weight of the bearing (16) in the bearing storage box (20) and thus determine whether the bearing storage box (20) is full.

4. The adaptive strengthening grinding device for batch automatic clamping of bearings according to claim 1, characterized in that, The material circulation device includes: a pressure cylinder (22), a pressurizing pipe (24), a grinding hopper (23), a grinding cylinder (26), a feeding pipe (27), a material nozzle (10), a material transport pipe (30), and a discharge pipe (11). The pressure cylinder (22) is equipped with a button (21). The pressure cylinder (22) is connected to the pressurizing pipe (24). The pressurizing pipe (24) is connected to the grinding cylinder (26). The grinding cylinder (26) is connected to the grinding hopper (23) through a fastening valve (25). The grinding hopper (23) is connected to the pad (5). The bottom of the grinding cylinder (26) is connected to the feeding pipe (27). The feeding pipe (27) is connected to the discharge pipe (11) through the material transport pipe (30). The discharge pipe (11) is connected to the material nozzle (10).

5. The adaptive strengthening grinding device for batch automatic clamping of bearings according to claim 1, characterized in that, The cold spraying processing device includes: a cold spraying tank (2), a pressure cap (3), a transport pipe (4), and a spray nozzle (7). The cold spraying tank (2) is connected to the pressure cap (3), the pressure cap (3) is connected to the transport pipe (4), and the transport pipe (4) is connected to the spray nozzle (7).

6. The adaptive strengthening grinding device for batch automatic clamping of bearings according to claim 5, characterized in that, The cold spraying processing device also includes a rubber gasket (6), and the transport pipe is connected to the spray nozzle (7) through the rubber gasket (6).

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