CN-119283427-B - High-pressure forming device and method for graphene high-speed steel bearing

Abstract

The invention discloses a high-pressure forming device and method for a graphene high-speed steel bearing. The device comprises a man-machine interaction system, an automatic feeding and discharging system, a high-pressure forming system and a control system. The method comprises the steps of firstly placing a high-speed steel bearing on a vibration transmission belt to be transmitted to a bearing fixing seat, after a proximity switch sensor senses the high-speed steel bearing, controlling a magnetic mechanical claw to move the high-speed steel bearing out of the bearing fixing seat and place the high-speed steel bearing between high-pressure forming dies, paving a lower graphite material on a base of the high-pressure forming dies, placing the high-speed steel bearing on an inner ring of the dies, lowering an upper cover of the high-pressure forming dies to cover the bearing, paving an upper graphite material on the inner ring of the upper cover of the high-pressure forming dies, and finally starting a high-pressure forming system, wherein a high-pressure forming ejector rod is used for double-sided forming of the upper end face and the lower end face of the high-speed steel bearing. The high-speed graphene steel bearing and the manufacturing method thereof realize high-pressure forming of the graphite material of the high-speed graphene steel bearing, are high in automation degree, and improve production efficiency and product quality.

Inventors

• BAO JIANDONG

Assignees

• 南京理工大学

Dates

Publication Date

20260505

Application Date

20241018

Claims (5)

1. 1. The high-speed steel bearing high-pressure forming device for the graphene is characterized by comprising a man-machine interaction system, an automatic feeding and discharging system, a high-pressure forming system and a control system: The man-machine interaction system is used for displaying the running state and related parameters of the equipment and performing equipment starting, stopping, mode switching and parameter setting operations; The automatic feeding and discharging system is used for feeding graphene high-speed steel bearings and discharging finished products; The high-pressure forming system is used for carrying out high-pressure forming operation on the graphene high-speed steel bearing; the control system is used for controlling synchronous work of all the components; the automatic feeding and discharging system comprises a vibration transmission belt (6), a driving motor (63), a bearing fixing seat (61), a proximity switch sensor (67), a mechanical claw truss (62), a first servo motor (65), a truss guide rail (64), a second servo motor (66), an automatic demagnetizer (68), a magnetic mechanical claw (69) and a suction claw (691); The vibration transmission belt (6) is positioned at the right end of the high-pressure forming device and driven by a driving motor (63) to carry out bearing transmission, the tail end of the vibration transmission belt (6) is provided with a bearing fixing seat (61), the lower end of the bearing fixing seat (61) is provided with a proximity switch sensor (67), the vibration transmission belt (6) transmits a high-speed steel bearing to be processed to the bearing fixing seat (61), the bearings are stably arranged through vibration in the transmission process, and when the proximity switch sensor (67) detects that the bearing fixing seat (61) is in a full state, the vibration transmission belt (6) stops transmitting so as to avoid the influence of bearing accumulation on subsequent operation; The magnetic mechanical claw (69) is arranged on the mechanical claw truss (62) and is controlled to move by a second servo motor (66), the magnetic mechanical claw (69) is provided with a positioning sensor, and after the positioning sensor detects that a bearing enters the bearing fixing seat (61), the magnetic mechanical claw (69) is driven by the truss guide rail (64) and the mechanical claw truss (62) to send the bearing into the high-pressure forming system for high-pressure forming operation, and the bearing after high-pressure forming is completed is moved out of the high-pressure forming system; The automatic demagnetizer (68) adopts a demagnetizing technology, and the magnetism of the bearing is eliminated before the magnetic mechanical claw (69) grabs the high-speed steel bearing; The high-pressure forming system comprises a servo press frame (30), a servo press (3), a high-pressure forming ejector rod (34), a die frame (38) and a high-pressure forming die (31), wherein a spreading table (32) and a bearing pressing groove (33) are arranged on the high-pressure forming die (31); The high-pressure forming die (31) comprises a base and an upper cover, the high-speed steel bearing is arranged between the base and the upper cover of the high-pressure forming die (31), graphite materials are uniformly filled on the upper surface and the lower surface of the bearing, and the graphite materials are uniformly filled in the high-pressure forming process; The servo press frame (30) is positioned in the middle of the high-pressure forming device, a die frame (38) is arranged below the servo press frame (30), a high-pressure forming ejector rod (34) on the lower side is arranged in the center of the top of the die frame (38), a servo press (3) is arranged at the top of the servo press frame (30), a high-pressure forming ejector rod (34) on the upper side is arranged below the servo press (3), a high-pressure forming die (31) base is arranged at the top end of the die frame (38), a bearing pressing groove (33) of the base is arranged at the center of the base of the high-pressure forming die (31), a spreading table (32) on the upper side is arranged on the upper surface of the high-pressure forming die (31), a spreading table (33) on the upper side is used for uniformly spreading graphite material in the bearing pressing groove (33) of the upper cover, a spreading table (32) on the upper side is arranged on the upper surface, a spreading table (34) on the upper side is provided with a spreading table (32) on the upper side, the high-pressure forming die is arranged on the upper side, the bearing pressing groove (33) is provided with the same diameter as the bearing pressing groove (33) of the base, the high-pressure forming device is arranged on the inner ring (33) and the high-pressure forming device is vertical to the high-pressure pressing groove (34), the diameter of the high-pressure forming device is vertical to be arranged on the inner ring (33), the high-pressure forming ejector rod (34) at the upper side performs bearing high-pressure forming operation under the action of the servo press (3); A graphite material filling device (36) is arranged above the high-pressure forming die (31) and used for respectively paving graphite materials on the base and the upper cover of the high-pressure forming die (31) and ensuring the uniform paving of the graphite materials through a metering and distributing mechanism; The upper end of the upper cover of the high-pressure forming die (31) is provided with a bearing inner ring plug (37), the bearing inner ring plug (37) is arranged on the surface of the lathe (10), and the bearing inner ring plug is placed and moved through a magnetic mechanical claw (69) and used for fixing the bearing inner ring in the high-pressure forming process of graphite materials, so that the stability of the bearing in the forming process is ensured; The high-pressure forming system is provided with a synchronous operation safety starting mechanism, safety gratings are arranged on two sides of the high-pressure forming system, foreign matters are not contained in the servo press (3), and the high-pressure forming system can perform high-pressure forming operation only by starting the high-pressure forming system with two hands.
2. 2. The high-speed steel bearing high-pressure forming device for the graphene is characterized in that the man-machine interaction system comprises a display control screen (11) and manual control keys (12), the display control screen (11) is located at the upper end of the high-pressure forming device and used for displaying the running state and related parameters of equipment, and the manual control keys (12) are located at the lower end of the display control screen (11) and used for starting, stopping, mode switching and parameter setting operation of the equipment.
3. 3. The graphene high-speed steel bearing high-pressure forming device according to claim 1, wherein the control system comprises a control cabinet (2), a main controller (21) and an exhaust system (22); the control cabinet (2) is located at the bottom of the high-pressure forming device, a main controller (21) is arranged in the control cabinet (2), and an exhaust system (22) is arranged on the side face of the control cabinet (2) and used for reducing the temperature of the control cabinet (2) and reducing dust pollution.
4. 4. A graphene high-speed steel bearing high-pressure forming device according to claim 3, wherein the front end of the control cabinet (2) is provided with a graphite material storage hopper (23) for storing the residues of graphite materials on the high-pressure forming device in the high-pressure forming process and keeping equipment clean.
5. 5. A graphene high-speed steel bearing high-pressure forming method based on the graphene high-speed steel bearing high-pressure forming device according to any one of claims 1 to 4, which is characterized by comprising the following steps: Step 1, automatic feeding, namely starting a high-pressure forming device, placing a high-speed steel bearing to be processed on a vibration transmission belt (6), transmitting the high-speed steel bearing to a bearing fixing seat (61) through the vibration transmission belt (6), sensing the high-speed steel bearing by a proximity switch sensor (67) at the tail end of the bearing fixing seat (61), and sending a signal to a main controller (21); Step 2, automatic demagnetizing, namely after the main controller (21) receives the sensor signal, controlling the magnetic mechanical claw (69) to move the high-speed steel bearing out of the bearing fixing seat (61), and carrying out demagnetizing treatment on the high-speed steel bearing by the automatic demagnetizer (68) at the upper end of the magnetic mechanical claw (69) in the moving-out process; Step 3, laying the bearing, namely after demagnetization is finished, laying the high-speed steel bearing between high-pressure forming dies (31) by using a magnetic mechanical claw (69); Step 4, double-layer spreading, namely spreading graphite materials on the base of a high-pressure forming die (31), placing a high-speed steel bearing on the inner ring of the die by a magnetic mechanical claw (69), lowering an upper cover of the high-pressure forming die (31) to cover the bearing after the bearing is placed, and spreading upper-layer graphite materials after placing a plug (37) on the inner ring of the upper cover of the high-pressure forming die (31), so as to ensure the stability of high-pressure forming of the graphite materials; And 5, double-sided molding, namely starting a high-pressure molding system after the graphite material is paved, and carrying out double-sided molding on the upper end face and the lower end face of the high-speed steel bearing by the high-pressure molding ejector rod (34) at the upper side through the servo press (3) so as to ensure that the pressure is uniformly distributed on the upper surface and the lower surface of the bearing.

Description

High-pressure forming device and method for graphene high-speed steel bearing Technical Field The invention relates to the technical field of graphene material high-pressure forming equipment, in particular to a high-pressure forming device and method for a graphene high-speed steel bearing. Background The bearing is widely applied to high-low temperature operation equipment such as various high-speed rotation equipment, new energy battery production lines, kiln car high-temperature equipment, military industry, steel mill metallurgy, boiler fans, liquid nitrogen equipment, solar cells, nanoelectronics, sensors, cement mill equipment, spraying dust conveying equipment and the like due to high strength and excellent wear resistance. At present, the existing domestic market mainly adopts the traditional bearings to add high-low temperature lubricating grease, no matter the imported or domestic bearings are adopted, the problems of high price, short service life and the like exist, and the repeated addition of the lubricating grease in the bearings causes environmental pollution and influences the environmental protection. The graphene solid lubrication bearing adopts a high-purity graphite material as a solid lubricant, is nontoxic and harmless to the environment, can continuously lubricate for a long time, and provides a bearing assembly which is free of cleaning, maintenance and pollution to the environment for equipment in various industries, so that the service life of the equipment is greatly prolonged. In the traditional graphene solid lubrication bearing manufacturing process, the material high-pressure forming process generally depends on manual operation, and the problems of unstable quality and low production efficiency of finished products exist in the mode. Particularly, in the process of laying and high-pressure forming of graphite materials, uneven pressure or insufficient filling of the graphite materials easily causes inconsistent hardness of the surface of the bearing and internal gaps, so that in the subsequent production process of the bearing, problems gradually occur, mainly including surface defects and surface cracks, which cause exposure of rolling bodies in the bearing, and the problems of material waste and low production efficiency caused by the incapability of subsequent processing are caused, so that research on high-pressure forming equipment of the graphene solid lubrication bearing capable of ensuring high efficiency and consistency of manufacturing the graphene solid lubrication bearing is needed. Disclosure of Invention The invention aims to provide a high-pressure forming device and method for a graphene high-speed steel bearing, which have the advantages of high automation degree, high production efficiency and high product quality stability. The technical scheme for achieving the purpose of the invention is that the high-pressure forming device of the graphene high-speed steel bearing comprises a man-machine interaction system, an automatic feeding and discharging system, a high-pressure forming system and a control system: The man-machine interaction system is used for displaying the running state and related parameters of the equipment and performing equipment starting, stopping, mode switching and parameter setting operations; The automatic feeding and discharging system is used for feeding graphene high-speed steel bearings and discharging finished products; The high-pressure forming system is used for carrying out high-pressure forming operation on the graphene high-speed steel bearing; and the control system is used for controlling the synchronous work of all the components. The man-machine interaction system further comprises a display control screen and a manual control key, wherein the display control screen is positioned at the upper end of the high-pressure forming device and is used for displaying the running state and related parameters of equipment, and the manual control key is positioned at the lower end of the display control screen and is used for starting, stopping, switching modes and setting parameters of the equipment. Further, the automatic feeding and discharging system comprises a vibration transmission belt, a driving motor, a bearing fixing seat, a proximity switch sensor, a mechanical claw truss, a first servo motor, a truss guide rail, a second servo motor, an automatic demagnetizer, a magnetic mechanical claw and a suction claw; The vibration transmission belt is positioned at the right end of the high-pressure forming device and driven by a driving motor to carry out bearing transmission, the tail end of the vibration transmission belt is provided with a bearing fixing seat, and the lower end of the bearing fixing seat is provided with a proximity switch sensor; The mechanical claw truss is positioned at the upper end of the high-pressure forming device, the mechanical claw truss is controlled by a first servo motor to move, and a truss guide