Automatic wax injection device and method for graphene solid lubrication bearing

Abstract

The invention discloses an automatic wax injection device and method for a graphene solid lubrication bearing. The device comprises a man-machine interaction system, an automatic feeding and discharging system, a temperature control wax tank, a feeding and discharging sensor system, a high-pressure air injection system, a mold and a control system. The method comprises the following steps: firstly, raising the temperature of the temperature control wax tank to a specified temperature, putting a cleaned bearing into a mold, and putting the mold on an input conveying belt; after the mold reaches the wax injection position, the mechanical clamping jaw grabs the mold and puts the mold into a temperature control wax groove for wax injection, after wax injection is completed, the mechanical clamping jaw ascends, the high-pressure air injection system blows away redundant wax liquid on the mold, and the wax liquid in a bearing is rapidly cooled; then, the mechanical clamping jaw moves rightwards, and the die is placed on the output conveying belt and output to a discharging area; and finally, taking out and overturning the mold, taking out the bearing and cooling after unsolidified wax liquid in the mold uniformly covers the surface of the bearing, and thoroughly solidifying a surface wax layer. The wax injection efficiency and the wax injection quality of the graphene solid lubrication bearing are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automated graphene solid-state lubrication bearing manufacturing, in particular to an automatic wax injection device and method for a graphene solid-state lubrication bearing. Background Art

[0002] Graphene solid-lubricating bearings are carbon bearings developed and developed on the basis of metal bearings in accordance with the performance requirements of mechanical equipment. They use graphite material as the main base material and have characteristics different from metal bearings, mainly in: self-lubrication, high and low temperature resistance, corrosion resistance, light weight, etc. They can be used in new energy battery production lines, kiln kiln car high temperature equipment (300-400℃), military industry, steel plant metallurgy, boiler fans, liquid nitrogen equipment and other high and low temperature operations.

[0003] The existing wax injection process is not suitable for graphene solid lubrication bearings. It is not only time-consuming, labor-intensive and inefficient, but also has the risk of uneven wax layer coverage, resulting in poor self-lubricating performance of the bearings, and it is difficult to guarantee product quality and service life. During the wax injection process, the uniformity and adhesion of the wax have an important impact on the performance of graphene solid lubrication bearings. Therefore, it is urgent to develop an automated, efficient and uniform wax injection process equipment.

[0004] Invention patent CN 118080778 A discloses an automatic wax injection machine, with a pressure plate fixed on the top of the machine base, a distance adjustment component arranged inside the pressure plate, the distance adjustment component used to convey the mold, a display screen fixed on the side of the machine base, a wax cylinder fixed on the rear end face of the machine base, a plunger pump fixed on the top of the wax cylinder, a conveying pipeline fixed below the front end face of the plunger pump, a wax pad seat slidably connected to the bottom of the high-pressure oil pump, a dredging component arranged on the top of the wax pad seat, and the dredging component used to dredge the blockage of the wax injection machine. The wax injection machine contacts the bottom of the shaft body through an electric telescopic plate, the shaft body is driven upward by friction, the shaft body squeezes the comb strip upward and plugs it in, the comb strip passes through the hinge ring and the inside of the pressure plate and extends into the injection nozzle, and after plugging the injection nozzle, the inner wall of the injection nozzle is cleaned, so as to prevent blockage during automatic wax injection and achieve the effect of improving processing quality. However, the wax injection machine still has the following problems: the wax injection nozzle of the wax injection machine is blocked or accumulated due to insufficient fluidity. The wax injection nozzle is simply cleaned by the extrusion force of the upward insertion when the mold is placed, resulting in accumulation after the equipment works for a long time, and the blockage is inevitable; the wax injection process of the wax injection machine lacks specificity and cannot inject wax to specific parts of the workpiece, resulting in poor processing effect of the workpiece in subsequent processes; and the wax injection machine lacks a cooling system, and a long time of waiting is required for the wax liquid to cool and solidify, which greatly increases the waiting time required by manual labor before processing, affecting the processing efficiency, and the unsolidified wax liquid will exhibit fluid phenomena under the action of gravity, resulting in uneven distribution of the wax liquid, which seriously affects the product quality. Summary of the invention

[0005] The object of the present invention is to provide a graphene solid lubrication bearing automatic wax injection device and method which has strong pertinence, simple structure and operation, high production efficiency and automatic troubleshooting function.

[0006] The technical solution to achieve the purpose of the present invention is: an automatic wax injection device for graphene solid lubrication bearings, including a human-machine interaction system, an automatic loading and unloading system, a temperature-controlled wax tank, a loading and unloading sensor system, a high-pressure jet system, a mold and a control system;

[0007] The human-computer interaction system includes a display control screen and a manual control button. The display control screen is used to display the operating status of the equipment, view and set parameters, adjust the wax injection temperature, adjust the wax injection time and monitor the wax tank temperature. The manual control button is used to start, stop and switch modes of the equipment.

[0008] The automatic loading and unloading system is used to transfer the wax injection mold from the starting position to the wax injection area, and transfer the mold after wax injection to the removal position;

[0009] The temperature-controlled wax tank is located between the input conveyor belt and the output conveyor belt on the wax injection lathe, and is used to control the temperature of the injected wax and maintain the fluidity and adhesion of the wax;

[0010] The loading and unloading sensor system is used to detect the positioning of the mold, start the conveying system and control the movement of the mechanical gripper;

[0011] The high-pressure jet system is arranged adjacent to the temperature-controlled wax tank, and is used to blow excess wax off the mold surface after the wax injection is completed, and at the same time cool the bearing inside the mold to initially solidify the wax liquid and ensure a uniform wax layer;

[0012] The mold is used to fix the graphene solid lubrication bearing for subsequent mechanical clamping operations, and can accommodate multiple bearings, and the upper and lower end covers can be disassembled;

[0013] The control system is used to coordinate the synchronous operation of the temperature-controlled wax tank preheating, the automatic loading and unloading system operation and the high-pressure jet system.

[0014] Furthermore, the automatic wax injection device for graphene solid-state lubrication bearings adopts a closed design on the outside.

[0015] Further, the automatic loading and unloading system comprises an input conveyor belt, a first drive motor, an output conveyor belt, a second drive motor, a mechanical gripper, a first servo motor, a mechanical gripper lifting mechanism, a second servo motor and a mechanical gripper truss;

[0016] The input conveyor belt is located on the left side of the temperature-controlled wax tank, and the output conveyor belt is located on the right side of the temperature-controlled wax tank, and are driven by the first drive motor and the second drive motor respectively; the two ends of the mechanical claw truss are arranged above the temperature-controlled wax tank, the input conveyor belt and the output conveyor belt through two longitudinal pillars, and the mechanical claw truss is provided with a mechanical gripper lifting mechanism, and the horizontal movement of the mechanical gripper lifting mechanism is controlled by the first servo motor; a mechanical gripper is arranged on the mechanical gripper lifting mechanism, and the up and down movement of the mechanical gripper is controlled by the second servo motor to grab the mold and move it to the temperature-controlled wax tank for wax injection;

[0017] The automatic loading and unloading system can be automatically adjusted to accommodate workpieces of different sizes and shapes.

[0018] Furthermore, the mechanical gripper is made of mold steel and has the characteristics of high and low temperature resistance and corrosion resistance, so as to meet the requirements of grabbing the mold and sinking it into the wax tank to control wax injection within a set time.

[0019] Furthermore, the temperature-controlled wax tank comprises a wax tank base, a temperature sensor and a heater;

[0020] The temperature sensor is located around the wax tank base of the temperature-controlled wax tank and is used to monitor the temperature of the wax tank in real time;

[0021] The heater is located below the wax tank base and is used to maintain the temperature of the wax tank within a preset temperature range.

[0022] Furthermore, the loading and unloading sensor system includes a starting point switch sensor, an end point switch sensor, and a position sensor;

[0023] The starting point switch sensor is used to detect whether the mold is placed at the starting position on the input conveyor belt;

[0024] The end point switch sensor is used to detect whether the mold reaches the removal position of the output conveyor belt after the wax injection is completed;

[0025] The position sensor is used to detect the positioning of the mold at the wax injection position to control the precise movement of the mechanical gripper.

[0026] Further, the high-pressure jet system comprises a base, a high-pressure jet device and a guide rod cylinder;

[0027] The base is arranged adjacent to the temperature-controlled wax tank, and a guide rod cylinder is arranged on the base for providing high-pressure gas to the high-pressure jet device; a high-pressure jet device is arranged on the upper end of the guide rod cylinder for preliminary cooling of the wax liquid.

[0028] Furthermore, the pressure and time of the gas outlet of the high-pressure jet device in the high-pressure jet system can be adjusted to ensure a uniform wax layer.

[0029] Furthermore, the mold is fixed by an electric screwdriver, and a rubber pad and a seal are arranged inside the mold to ensure that wax is only injected into the rolling elements and the retaining frame inside the graphene solid lubrication bearing during the wax injection process.

[0030] A method for producing an automatic wax injection for a graphene solid-state lubricating bearing, the method is based on the automatic wax injection device for a graphene solid-state lubricating bearing, and the wax injection method comprises the following steps:

[0031] Step 1, start the automatic wax injection device for the graphene solid lubrication bearing and raise the temperature of the temperature-controlled wax tank to a specified temperature;

[0032] Step 2: Put the cleaned bearing into the mold, fix the mold with an electric screwdriver, and place it on the input conveyor belt;

[0033] Step 3: After the starting point switch sensor at the end of the input conveyor belt detects that the mold has reached the wax injection position, the mechanical gripper grabs the mold and places it in the temperature-controlled wax tank for wax injection;

[0034] Step 4: After the wax injection is completed, the mechanical gripper rises, and the high-pressure jet device extends forward to blow away the excess wax liquid on the mold and cool the wax liquid in the bearing so that the wax layer is evenly solidified on the cage and rolling elements inside the bearing;

[0035] Step 5: The mechanical gripper moves right along the mechanical gripper truss and places the wax-injected mold on the output conveyor belt, which then outputs the mold to the unloading area.

[0036] Step 6. Take out the mold and turn it over to ensure that the unsolidified wax liquid inside the mold evenly covers the bearing surface. After several times, open the mold, take out the bearing, and cool it to below 25°C to completely solidify the surface wax layer.

[0037] Compared with the prior art, the present invention has the following significant advantages: (1) The equipment of the present invention includes a temperature-controlled wax pool, a transmission system, a mechanical gripper and a plurality of sensor modules. Through the coordinated work of these components, the equipment can automatically complete the wax injection process of the bearing, realize fully automated operation, improve production efficiency and reduce labor costs; (2) Through automated control and precise mechanical operation, efficient wax injection of the bearing can be achieved, the uniformity of the wax layer can be effectively guaranteed, and the quality and performance of the graphene solid lubrication bearing can be significantly improved; (3) The equipment has strong targeting, simple structure and operation, automatic troubleshooting function, good stability and repeatability, and has broad application prospects and significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of an automatic wax injection device for a graphene solid-state lubrication bearing of the present invention.

[0039] Figure 2It is a top view of the automatic wax injection device for graphene solid-state lubrication bearings in the present invention.

[0040] Figure 3 It is a front view of the automatic wax injection device for graphene solid-state lubrication bearings in the present invention.

[0041] Figure 4 It is a structural schematic diagram of the mold in the present invention.

[0042] Figure 5 The present invention is a flowchart of a method for automatic wax injection of a graphene solid-state lubrication bearing. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0044] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0045] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides an automatic wax injection device for graphene solid lubrication bearings, comprising a human-machine interaction system, an automatic loading and unloading system, a temperature-controlled wax tank, a loading and unloading sensor system, a high-pressure jet system, a mold 9 and a control system 61;

[0046] The human-computer interaction system includes a display control screen 11 and a manual control button 12. The display control screen 11 is used to display the operating status of the equipment, view and set parameters, adjust the wax injection temperature, adjust the wax injection time and monitor the wax tank temperature. The manual control button 12 is used to start, stop and switch modes of the equipment.

[0047] The automatic loading and unloading system is used to transfer the wax injection mold 9 from the starting position to the wax injection area, and transfer the mold 9 after wax injection to the removal position;

[0048] The temperature-controlled wax tank 4 is located between the input conveyor belt 21 and the output conveyor belt 22 on the wax injection lathe, and is used to control the temperature of the injected wax and maintain the fluidity and adhesion of the wax;

[0049] The loading and unloading sensor system is used to detect the positioning of the mold 9, start the conveying system and control the movement of the mechanical gripper 31;

[0050] The high-pressure jet system is located at the front end of the temperature-controlled wax tank 4, and is used to blow excess wax off the surface of the mold 9 after the wax injection is completed, and at the same time quickly cool the bearing inside the mold 9 to initially solidify the wax liquid and ensure a uniform wax layer;

[0051] The mold 9 is used to fix the graphene solid lubrication bearing to facilitate the subsequent operation of the mechanical clamp, and can accommodate multiple bearings, and the upper and lower end covers are detachable;

[0052] The control system 61 is used to coordinate the preheating of the temperature-controlled wax tank 4, the operation of the automatic loading and unloading system and the synchronous operation of the high-pressure jet system.

[0053] As a specific example, the automatic wax injection device adopts a closed design on the outside to ensure the safety of operation and the stability of the process.

[0054] As a specific example, the automatic loading and unloading system includes an input conveyor belt 21, a first drive motor 211, an output conveyor belt 22, a second drive motor 221, a mechanical gripper 31, a first servo motor 331, a mechanical gripper lifting mechanism 32, a second servo motor 321 and a mechanical gripper truss 33;

[0055] The input conveyor belt 21 is located on the left side of the temperature-controlled wax tank 4, and the output conveyor belt 22 is located on the right side of the temperature-controlled wax tank 4, and is driven by a first drive motor 211 and a second drive motor 221 respectively; the two ends of the mechanical claw truss 33 are arranged above the temperature-controlled wax tank 4, the input conveyor belt 21 and the output conveyor belt 22 through two longitudinal pillars, and a mechanical gripper lifting mechanism 32 is arranged on the mechanical gripper truss 33, and the horizontal movement of the mechanical gripper lifting mechanism 32 is controlled by a first servo motor 331; a mechanical gripper 31 is arranged on the mechanical gripper lifting mechanism 32, and the up and down movement of the mechanical gripper 31 is controlled by a second servo motor 321 to grab the mold 9 and move it into the temperature-controlled wax tank 4 for wax injection;

[0056] The automatic loading and unloading system can be automatically adjusted to accommodate workpieces of different sizes and shapes.

[0057] As a specific example, the mechanical gripper 31 has the characteristics of high and low temperature resistance and corrosion resistance, so as to grasp the mold 9 for a long time within a set time and sink it into the wax tank 4 to control the wax injection.

[0058] As a specific example, the temperature-controlled wax tank 4 includes a wax tank base 41, a temperature sensor 42 and a heater;

[0059] The temperature sensor 42 is located around the wax tank base 41 of the temperature-controlled wax tank 4 and is used to monitor the temperature of the wax tank in real time;

[0060] The heater is located below the wax tank base 41 and is used to maintain the temperature of the wax tank 4 within a preset temperature range to ensure the stability of the wax injection process.

[0061] As a specific example, the loading and unloading sensor system includes a starting point switch sensor, an end point switch sensor, and a position sensor;

[0062] The starting point switch sensor is used to detect whether the mold 9 is placed at the starting position on the input conveyor belt 21;

[0063] The end point switch sensor is used to detect whether the mold 9 reaches the removal position of the output conveyor belt 22 after the wax injection is completed;

[0064] The position sensor is used to detect the position of the mold 9 at the wax injection position to control the precise movement of the mechanical clamp 31.

[0065] As a specific example, the high-pressure jet system includes a base 51, a high-pressure jet device 52 and a guide rod cylinder 53;

[0066] The base 51 is arranged adjacent to the temperature-controlled wax tank 4. A guide rod cylinder 53 is arranged on the base 51 for providing high-pressure gas to the high-pressure jet device 52. The high-pressure jet device 52 is arranged on the upper end of the guide rod cylinder 53 for preliminary cooling of the wax liquid.

[0067] As a specific example, the pressure and time of the air outlet of the high-pressure jet device 52 in the high-pressure jet system can be adjusted to ensure a uniform wax layer.

[0068] As a specific example, Figure 4 As shown, the mold 9 adopts a structure that can firmly fix the graphene solid-lubricated bearing and is convenient for the operation of the mechanical clamp 31. It can accommodate multiple graphene solid-lubricated bearings, and the upper and lower end covers are removable and fixed by an electric screwdriver; rubber pads and seals are arranged inside the mold 9 to ensure that the mold 9 only injects wax into the rolling elements and retaining frames inside the graphene solid-lubricated bearing during the wax injection process.

[0069] like Figure 5 As shown, a method for producing automatic wax injection of graphene solid lubrication bearings comprises the following steps:

[0070] Step 1, start the automatic wax injection device for the graphene solid lubrication bearing, and raise the temperature of the temperature-controlled wax tank 4 to a specified temperature;

[0071] Step 2: Place the cleaned bearing into the mold 9, fix the mold 9 with an electric screwdriver, and place it on the input conveyor belt 21;

[0072] Step 3: After the starting point switch sensor at the end of the input conveyor belt 21 detects that the mold 9 has reached the wax injection position, the mechanical gripper 31 grabs the mold 9 and places it into the temperature-controlled wax tank 4 for wax injection;

[0073] Step 4: After the wax injection is completed, the mechanical gripper 31 is raised, and the high-pressure jet device 52 is extended to blow away the excess wax liquid on the mold 9 and cool the wax liquid in the bearing so that the wax layer is evenly solidified on the cage and rolling elements inside the bearing;

[0074] Step 5, the mechanical gripper 31 moves rightward along the mechanical gripper truss 33, and places the wax-injected mold 9 on the output conveyor belt 22, and the output conveyor belt 22 outputs the mold 9 to the unloading area;

[0075] Step 6: Take out the mold 9 and turn it over to ensure that the unsolidified wax liquid inside the mold 9 evenly covers the bearing surface. After several times, open the mold 9, take out the bearing and cool it to below 25°C to completely solidify the surface wax layer.

[0076] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting.

[0077] The purpose of the present invention is to overcome the shortcomings of wax injection equipment and processes in the production of graphene solid-state lubricated ball bearings, improve the efficiency, safety and accuracy of wax injection of graphene solid-state lubricated bearings, and further improve the self-lubrication and service life of graphene solid-state lubricated bearings. The present invention combines automatic control technology to improve the wax injection efficiency and product performance quality of high-speed steel bearings, reduce labor costs, reduce error rates, improve work efficiency, and overall improve the efficiency, safety and accuracy of wax injection in the production of high-speed steel bearings.

[0078] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A graphene solid lubrication bearing automatic wax injection device, characterized in that: It includes a human-machine interaction system, an automatic loading and unloading system, a temperature-controlled wax tank, a loading and unloading sensor system, a high-pressure jet system, a mold (9) and a control system (61); The human-machine interaction system comprises a display control screen (11) and a manual control button (12), wherein the display control screen (11) is used to display the operation status of the equipment, view and set parameters, adjust the wax injection temperature, adjust the wax injection time and monitor the wax tank temperature, and the manual control button (12) is used to start, stop and switch modes of the equipment; The automatic loading and unloading system is used to transfer the wax injection mold (9) from the starting position to the wax injection area, and to transfer the mold (9) after the wax injection is completed to the removal position; The temperature-controlled wax tank (4) is located between the input conveyor belt (21) and the output conveyor belt (22) on the wax injection lathe and is used to control the temperature of the injected wax and maintain the fluidity and adhesion of the wax; The loading and unloading sensor system is used to detect the positioning of the mold (9), start the conveying system and control the movement of the mechanical clamp (31); The high-pressure jet system is arranged adjacent to the temperature-controlled wax tank (4) and is used to blow excess wax off the surface of the mold (9) after the wax injection is completed, while cooling the bearing inside the mold (9) to initially solidify the wax liquid and ensure a uniform wax layer; The mold (9) is used to fix the graphene solid lubrication bearing for subsequent mechanical clamping operations, and can accommodate multiple bearings, and the upper and lower end covers can be disassembled; The control system (61) is used to coordinate the preheating of the temperature-controlled wax tank (4), the operation of the automatic loading and unloading system, and the synchronous operation of the high-pressure jet system.

2. The automatic wax injection device for graphene solid lubrication bearing according to claim 1, characterized in that: The automatic wax injection device adopts a closed design on the outside.

3. The automatic wax injection device for graphene solid lubrication bearing according to claim 1, characterized in that: The automatic loading and unloading system comprises an input conveyor belt (21), a first drive motor (211), an output conveyor belt (22), a second drive motor (221), a mechanical gripper (31), a first servo motor (331), a mechanical gripper lifting mechanism (32), a second servo motor (321) and a mechanical gripper truss (33); The input conveyor belt (21) is located on the left side of the temperature-controlled wax tank (4), and the output conveyor belt (22) is located on the right side of the temperature-controlled wax tank (4), and are driven by a first drive motor (211) and a second drive motor (221) respectively; two ends of a mechanical claw truss (33) are arranged above the temperature-controlled wax tank (4), the input conveyor belt (21) and the output conveyor belt (22) through two longitudinal struts; a mechanical claw lifting mechanism (32) is arranged on the mechanical claw truss (33), and the horizontal movement of the mechanical claw lifting mechanism (32) is controlled by a first servo motor (331); a mechanical claw (31) is arranged on the mechanical claw lifting mechanism (32), and the vertical movement of the mechanical claw (31) is controlled by a second servo motor (321) to grasp the mold (9) and move it into the temperature-controlled wax tank (4) for wax injection; The automatic loading and unloading system can be automatically adjusted to accommodate workpieces of different sizes and shapes.

4. The automatic wax injection device for graphene solid lubrication bearing according to claim 3 is characterized in that: The mechanical gripper (31) is made of mold steel and has the characteristics of high and low temperature resistance and corrosion resistance, and can grasp the mold (9) and sink it into the wax tank (4) within a set time to control wax injection.

5. The automatic wax injection device for graphene solid lubrication bearing according to claim 1, characterized in that: The temperature-controlled wax tank (4) comprises a wax tank base (41), a temperature sensor (42) and a heater; The temperature sensor (42) is located around the wax tank base (41) of the temperature-controlled wax tank (4) and is used to monitor the temperature of the wax tank in real time; The heater is located below the wax tank base (41) and is used to maintain the temperature of the wax tank (4) within a preset temperature range.

6. The automatic wax injection device for graphene solid lubrication bearing according to claim 1, characterized in that: The loading and unloading sensor system includes a starting point switch sensor, an end point switch sensor, and a position sensor; The starting point switch sensor is used to detect whether the mold (9) is placed at the starting position on the input conveyor belt (21); The end point switch sensor is used to detect whether the mold (9) has reached the removal position of the output conveyor belt (22) after the wax injection is completed; The position sensor is used to detect the positioning of the mold (9) at the wax injection position, so as to control the precise movement of the mechanical clamp (31).

7. The automatic wax injection device for graphene solid lubrication bearing according to claim 1, characterized in that: The high-pressure jet system comprises a base (51), a high-pressure jet device (52) and a guide rod cylinder (53); The base (51) is arranged adjacent to the temperature-controlled wax tank (4); a guide rod cylinder (53) is arranged on the base (51) for providing high-pressure gas to the high-pressure jet device (52); a high-pressure jet device (52) is arranged at the upper end of the guide rod cylinder (53) for preliminarily cooling the wax liquid.

8. The automatic wax injection device for graphene solid lubrication bearing according to claim 7, characterized in that: The pressure and time of the gas outlet of the high-pressure jet device (52) in the high-pressure jet system can be adjusted to ensure a uniform wax layer.

9. The automatic wax injection device for graphene solid lubrication bearing according to claim 1, characterized in that: The mold (9) is fixed by an electric screwdriver, and a rubber pad and a sealing member are arranged inside the mold (9) to ensure that during the wax injection process, the mold (9) is only injected with wax into the rolling elements and the retaining frame inside the graphene solid lubrication bearing.

10. A method for automatically injecting wax into graphene solid lubrication bearings, characterized in that: The method is based on the automatic wax injection device for graphene solid lubrication bearings according to any one of claims 1 to 9, and the wax injection method comprises the following steps: Step 1, starting the automatic wax injection device for the graphene solid lubrication bearing to raise the temperature of the temperature-controlled wax tank (4) to a specified temperature; Step 2: Place the cleaned bearing into the mold (9), fix the mold (9) with an electric screwdriver, and place it on the input conveyor belt (21); Step 3, after the starting point switch sensor at the end of the input conveyor belt (21) detects that the mold (9) has reached the wax injection position, the mechanical gripper (31) grabs the mold (9) and places it into the temperature-controlled wax tank (4) for wax injection; Step 4: After the wax injection is completed, the mechanical gripper (31) is raised, and the high-pressure jet device (52) is extended forward to blow away the excess wax liquid on the mold (9), and cool the wax liquid in the bearing so that the wax layer is evenly solidified on the cage and rolling elements inside the bearing; Step 5: The mechanical gripper (31) moves rightward along the mechanical gripper truss (33) to place the wax-injected mold (9) on the output conveyor belt (22), and the output conveyor belt (22) outputs the mold (9) to the unloading area; Step 6: Take out the mold (9) and turn it over to ensure that the unsolidified wax liquid inside the mold (9) evenly covers the surface of the bearing. After several times, open the mold (9), take out the bearing, cool it to below 25°C, and completely solidify the surface wax layer.

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