Lubricating device for guide rail of numerical control vertical lathe

Abstract

The utility model relates to the technical field of fluid conveying, and discloses a numerical control vertical lathe guide rail lubricating device which comprises a workbench, a rack and a guide sliding rail, the top of the workbench is fixedly connected with an oil storage tank, the front side of the oil storage tank is fixedly connected with an electric one-way valve, and the front end of the electric one-way valve is fixedly connected with a filtering tank. The front end of the inner wall of the filtering tank is fixedly connected with a pressure sensor, the inner wall of the filtering tank is fixedly connected with a filtering net, the top of the workbench is fixedly connected with a water pump, the right side of the water pump communicates with an oil pumping pipe, and the right side of the top of the workbench is fixedly connected with a high-pressure gas tank. Lubricating oil in the oil storage tank is pumped into the filtering tank through the water pump, the pressure in the tank is monitored through the pressure sensor, when the pressure is abnormal, the pulse controller triggers the air tank to backflush and clean the filter screen, meanwhile, the air pump conveys air to form an air curtain, filtering, self-cleaning and protection are achieved, the service life of a guide rail is prolonged, and the precision of a machine tool is improved.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport technology, and in particular to a lubrication device for guide rails of CNC vertical lathes. Background Technology

[0002] A CNC vertical lathe is a high-precision machine tool used for machining large rotating parts. It is clamped on a worktable and rotates. The cutting tool is mounted on a tool post that can move up and down along the column guide rail to machine the workpiece. With its high precision, it has become a core piece of equipment in modern manufacturing. The efficient and stable operation of the lathe is inseparable from the guide rail lubrication device.

[0003] Compared to CNC vertical lathes, the CNC vertical lathe guide rail lubrication device uses a scientifically designed oil circuit structure to precisely deliver lubricating oil to the guide rail surface, effectively reducing friction between the guide rail and moving parts, avoiding wear and heat generation. This not only extends the service life of the guide rail but also improves the machining accuracy of the lathe, ensuring that the workpiece machining quality remains stable during long-term continuous operation.

[0004] Although the lubrication system of CNC vertical lathe guideways can improve the machining accuracy of the lathe, an unreasonable filter design or insufficient filtration precision in the lubrication system will allow impurities to enter the lubrication system, causing oil circuit blockage. This prevents the lubricating oil from reaching the guideway surface properly, affecting the lubrication effect, accelerating guideway wear, and allowing external dust to enter the lubrication system, contaminating the oil, reducing lubrication performance, and causing wear and corrosion to the guideway. The current solution is to install high-precision filters to improve filtration accuracy and effectively intercept impurity particles to prevent them from entering the lubrication system. At the same time, it is necessary to strengthen the cleaning and maintenance of the lubrication system and regularly replace the lubricating oil and filters. However, although high-precision filters can intercept impurities, extremely fine particles can still pass through, and long-term accumulation will still affect the lubrication effect. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a CNC vertical lathe guide rail lubrication device, which aims to improve the problem that even high-precision filters in the prior art still allow extremely fine particles to pass through.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a CNC vertical lathe guide rail lubrication device, including a worktable, a frame, and guide rails. An oil tank is fixedly connected to the top of the worktable. An electric one-way valve is fixedly connected to the front side of the oil tank. A filter tank is fixedly connected to the front end of the electric one-way valve. A pressure sensor is fixedly connected to the front end of the inner wall of the filter tank. A filter screen is fixedly connected to the inner wall of the filter tank. A water pump is fixedly connected to the top of the worktable. An oil extraction pipe is connected to the right side of the water pump. A high-pressure gas tank is fixedly connected to the top right side of the worktable. A solenoid valve is fixedly connected to the front side of the high-pressure gas tank. A pulse controller is fixedly connected to the bottom end of the solenoid valve. A backflow pipe is fixedly connected to the front end of the solenoid valve. A drain pipe is connected to the bottom end of the filter tank. A storage box is fixedly connected to the rear end of the drain pipe. An air curtain sealing assembly is provided on the top of the worktable. A lubrication mechanism is provided on the inner wall of the frame. The lubrication mechanism is used to lubricate the guide rails.

[0007] As a further description of the above technical solution:

[0008] The lubrication mechanism includes an oil delivery hose, the top of which is fixedly connected to the bottom of the water pump. A lubrication groove is provided on the inner wall of the frame. A permeation pipe is fixedly connected to the inner wall of the lubrication groove. A flow groove is provided on the inner wall of the permeation pipe. An electromagnetic vibrator is fixedly connected to the front end of the outer wall of the permeation pipe. Multiple flow guide grooves are provided on the outer wall of the guide rail.

[0009] As a further description of the above technical solution:

[0010] The air curtain sealing assembly includes an air storage tank, the bottom of which is fixedly connected to the top left side of the workbench, an air pump is fixedly connected to the top of the air storage tank, and an air curtain cavity is fixedly connected to the inner wall of the workbench.

[0011] As a further description of the above technical solution:

[0012] Lamp holders are fixedly connected to both the left and right sides of the frame, and lighting lamps are fixedly connected to the two lamp holders on the opposite sides.

[0013] As a further description of the above technical solution:

[0014] A monitor is fixedly connected to the front left end of the workbench, and a buzzer is fixedly connected to the top of the monitor.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the frame is fixedly connected to two sealing rings, both of which are annular in design.

[0017] As a further description of the above technical solution:

[0018] A pressure-reducing pad is fixedly connected to the bottom of the workbench, and the pressure-reducing pad is the same size as the bottom of the workbench.

[0019] As a further description of the above technical solution:

[0020] A control console is fixedly connected to the front side of the workbench. The control console is electrically connected to an electric check valve, a water pump, a pressure sensor, a solenoid valve, and a pulse controller.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, lubricating oil is drawn from the oil storage tank by a water pump and enters the filter tank through an electric one-way valve. The filter screen intercepts impurities to ensure the cleanliness of the oil. The pressure inside the tank is monitored in real time by a pressure sensor. When the pressure is abnormal, the pulse controller triggers the solenoid valve, causing the high-pressure gas tank to release gas to backwash and clean the filter screen. Impurities are collected through the sewage pipe. At the same time, the air pump continuously delivers clean gas to the air curtain cavity, forming an air curtain barrier to block external pollutants. This achieves filtration, self-cleaning and protection management, significantly improving the life of the guide rail and the precision of the machine tool.

[0023] 2. In this utility model, the filtered lubricating fluid is transported to the guide groove through the oil delivery hose by a water pump, so that the porous permeation tube is permeated by the lubricating oil. The flow groove can accelerate the flow speed of the lubricating oil and guide it. At the same time, the vibrator can make the flow of the lubricating oil uniform. Finally, the lubricating oil is applied to the guide groove on the guide rail, which significantly improves the lubrication coverage of the guide rail, reduces friction loss, extends service life, and ensures the machining accuracy of the machine tool. Attached Figure Description

[0024] Figure 1 A perspective view of the CNC vertical lathe guide rail lubrication device proposed in this utility model;

[0025] Figure 2 This is a front view of the CNC vertical lathe guide rail lubrication device proposed in this utility model;

[0026] Figure 3 This is a top view of the CNC vertical lathe guide rail lubrication device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the lighting fixture for the guide rail lubrication device of the CNC vertical lathe proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the filter tank of the CNC vertical lathe guide rail lubrication device proposed in this utility model;

[0029] Figure 6This is a cross-sectional view of the frame of the CNC vertical lathe guide rail lubrication device proposed in this utility model.

[0030] Legend:

[0031] 1. Workbench; 2. Frame; 3. Guide rail; 4. Lubrication mechanism; 401. Oil hose; 402. Lubrication tank; 403. Permeation pipe; 404. Flow channel; 405. Electromagnetic vibrator; 406. Flow channel; 5. Oil storage tank; 6. Electric check valve; 7. Filter tank; 8. Filter screen; 9. Water pump; 10. Oil suction pipe; 11. Pressure sensor; 12. High-pressure gas tank; 13. Solenoid valve; 14. Pulse controller; 15. Backflush pipe; 16. Sewage pipe; 17. Storage box; 18. Air storage tank; 19. Air pump; 20. Air curtain cavity; 21. Pressure relief pad; 22. Control console; 23. Lamp holder; 24. Lighting lamp; 25. Monitor; 26. Buzzer; 27. Sealing ring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 3 and Figure 5This utility model provides an embodiment of a CNC vertical lathe guide rail lubrication device, including a worktable 1, a frame 2, and a guide rail 3. The frame 2 serves as the component that carries the cutting tool in the device. An oil reservoir 5 is fixedly connected to the top of the worktable 1 for storing lubricating oil. An electric one-way valve 6 is fixedly connected to the front side of the oil reservoir 5 to control the flow of lubricating oil. A filter canister 7 is fixedly connected to the front end of the electric one-way valve 6 to filter the lubricating oil. A pressure sensor is fixedly connected to the front end of the inner wall of the filter canister 7. Device 11, pressure sensor 11 is used to detect the pressure inside filter tank 7. Filter screen 8 is fixedly connected to the inner wall of filter tank 7, serving as the main component of filtration. Water pump 9 is fixedly connected to the top of workbench 1, which extracts lubricating oil. Oil suction pipe 10 is connected to the right side of water pump 9, used to transport lubricating oil. High-pressure gas tank 12 is fixedly connected to the top right side of workbench 1, using high-pressure gas to impact impurities on the surface of filter screen 8. Electromagnetic sensor 12 is fixedly connected to the front of high-pressure gas tank 12. Valve 13, a solenoid valve 13, is used to control the flow of high-pressure gas. A pulse controller 14 is fixedly connected to the bottom of the solenoid valve 13 for precise control. A backflush pipe 15 is fixedly connected to the front end of the solenoid valve 13, through which high-pressure gas is transported. A drain pipe 16 is connected to the bottom of the filter tank 7 for removing impurities caused by impact. A collection box 17 is fixedly connected to the rear end of the drain pipe 16 for collecting impurities. An air curtain sealing assembly is installed on the top of the workbench 1. The inner wall of 2 is provided with a lubrication mechanism 4, which is used to lubricate the guide rail 3. The air curtain sealing assembly includes an air storage box 18, which is used to store clean gas. The bottom of the air storage box 18 is fixedly connected to the top left side of the workbench 1. The top of the air storage box 18 is fixedly connected to an air pump 19, which can extract the gas in the air storage box 18 and transport it to the air curtain cavity 20. The inner wall of the workbench 1 is fixedly connected to the air curtain cavity 20. The air curtain cavity 20 impacts the area around the guide rail 3 to prevent impurities from falling onto the surface of the guide rail 3.

[0034] Specifically, water pump 9 starts, drawing lubricating oil from oil tank 5 through oil extraction pipe 10. The lubricating oil enters filter tank 7 via electric check valve 6. Filter screen 8 in filter tank 7 performs preliminary filtration of the lubricating oil, intercepting impurities to ensure that the lubricating oil entering subsequent pipelines is relatively clean. Pressure sensor 11 monitors the pressure in filter tank 7 in real time. If the pressure is within the normal range, the filtered lubricating oil continues to be transported along the pipeline under the action of water pump 9, and is finally sent to guide rail 3 to lubricate the guide rail. When pressure sensor 11 detects that the pressure in filter tank 7 exceeds the set threshold, it means that a lot of impurities have accumulated on the surface of filter screen 8, causing oil flow obstruction. At this time, pulse controller 14 is activated. The solenoid valve 13 is precisely controlled to open, and the high-pressure gas in the high-pressure gas tank 12 rushes towards the filter screen 8 through the backflow pipe 15, strongly impacting the impurities on the surface. Under the action of the high-pressure gas, the impurities are removed from the filter screen 8 and fall into the collection box 17 through the drain pipe 16, completing the cleaning of the filter screen 8 and restoring the filtration effect. The air pump 19 continues to work, extracting clean gas from the air storage tank 18 and sending it to the air curtain chamber 20. The air curtain chamber 20 sprays the gas in the form of an air curtain around the guide rail 3, forming an air barrier around the guide rail to prevent external impurities and dust from falling onto the surface of the guide rail 3, preventing impurities from contaminating the guide rail, ensuring the cleanliness of the guide rail, and thus indirectly improving the lubrication effect and the service life of the guide rail.

[0035] Reference Figure 2 , Figure 4 and Figure 6 The lubrication mechanism 4 includes an oil delivery hose 401, which serves as the component for the filtered lubricating oil to flow out. The top of the oil delivery hose 401 is fixedly connected to the bottom of the water pump 9. The inner wall of the frame 2 is provided with a lubrication groove 402, which is used to accommodate the permeation tube 403. The permeation tube 403 is fixedly connected to the inner wall of the lubrication groove 402. The permeation tube 403 can accelerate the permeation of lubricating oil. The inner wall of the permeation tube 403 is provided with a flow groove 404, which provides flow space for the permeation of lubricating oil. The front end of the outer wall of the permeation tube 403 is fixedly connected with an electromagnetic vibrator 405, which is used to accelerate the flow speed of lubricating oil and adjust the uniformity of lubricating oil flow. The outer wall of the guide rail 3 is provided with multiple guide grooves 406, which can increase the uniformity of lubricating oil application.

[0036] Specifically, the lubricating oil filtered by the filter tank 7 is pumped by the water pump 9 through the oil delivery hose 401 to the lubrication groove 402 on the inner wall of the frame 2, providing sufficient lubricating oil for the subsequent lubrication process. The lubricating oil in the lubrication groove 402 enters the permeation tube 403. The special structure of the permeation tube 403 can accelerate the permeation speed of the lubricating oil. The flow groove 404 opened on the inner wall provides flow space for the permeation of the lubricating oil, allowing the lubricating oil to diffuse more smoothly to the outer wall of the permeation tube 403. The electromagnetic vibrator 405 accelerates the permeation of the permeation tube 403 by generating vibration. The flow rate of the lubricating oil inside the guide rail 3 is adjusted by the vibration of the electromagnetic vibrator 405, which helps to regulate the uniformity of the lubricating oil flow. This allows the lubricating oil to seep out more evenly from the permeation pipe 403. After the lubricating oil seeps out from the permeation pipe 403 and reaches the outer wall of the guide rail 3, the multiple guide grooves 406 on the outer wall of the guide rail 3 can guide the flow direction of the lubricating oil, increase the uniformity of the lubricating oil coating on the surface of the guide rail 3, ensure that the entire guide rail surface is well lubricated, reduce friction and wear, and improve the service life of the guide rail and the machining accuracy of the machine tool.

[0037] Reference Figure 1 , Figure 2 and Figure 3 Lamp holders 23 are fixedly connected to both the left and right sides of the frame 2. Lighting lamps 24 are fixedly connected to the opposite sides of each lamp holder 23, providing illumination around the device. A monitor 25 is fixedly connected to the front left end of the workbench 1, monitoring the area around the device. A buzzer 26 is fixedly connected to the top of the monitor 25, alerting people in the vicinity. Two sealing rings 27 are fixedly connected to the outer wall of the frame 2, sealing the upper and lower ends of the lubrication groove 402. To prevent excessive lubricating oil from being applied to the surface of the guide rail 3 or from overflowing from the lubrication groove 402, both sealing rings 27 adopt an annular design. A pressure-reducing pad 21 is fixedly connected to the bottom of the worktable 1. The pressure-reducing pad 21 can reduce the pressure of the device on the ground and increase friction. The pressure-reducing pad 21 is the same size as the bottom of the worktable 1. A control console 22 is fixedly connected to the front side of the worktable 1. The control console 22 is electrically connected to the electric one-way valve 6, water pump 9, pressure sensor 11, solenoid valve 13 and pulse controller 14 respectively.

[0038] Specifically, before the device is put into operation, operators can connect it to a specific mobile device via wireless technology. This allows operators to control the electric check valve 6, water pump 9, pressure sensor 11, solenoid valve 13, and pulse controller 14 via the control console 22, or remotely via the mobile device. When the CNC vertical lathe is working, the lighting 24 illuminates the work area for both guide rail lubrication and observation and operation of other lathe components, enabling operators to clearly see the lubrication status of the guide rails and the lathe's operating status, facilitating timely problem detection and maintenance. The monitor 25 continuously monitors the area around the device. When the monitor 25 detects an abnormality, the buzzer 26 on top sounds an alarm. The sound of the 6 can alert nearby operators to abnormal situations so that timely measures can be taken to deal with them and prevent the problem from escalating. During the lubrication process, when the lubricating oil penetrates the surface of the guide rail 3, the two sealing rings 27 fit tightly against the upper and lower ends of the lubrication groove 402 to prevent excessive lubricating oil from being applied to the surface of the guide rail 3, thus avoiding waste of lubricating oil and pollution to the surrounding environment. At the same time, the sealing rings 27 can also prevent the lubricating oil in the lubrication groove 402 from overflowing, maintaining good lubrication of the guide rail. When the CNC vertical lathe is placed on the ground, the pressure relief pad 21 can reduce the pressure of the device on the ground and increase the friction between the device and the ground, making the lathe more stable during operation and preventing the vibration or movement of the lathe from affecting the machining accuracy and the safety of the equipment.

[0039] Working Principle: After the water pump 9 starts, it draws lubricating oil from the oil storage tank 5. The lubricating oil then flows unidirectionally into the filter tank 7 via the electric check valve 6. After preliminary filtration, the lubricating oil, under the continuous action of the water pump 9, is transported along the pipeline to the guide rail 3, lubricating the guide rail and reducing friction and wear during operation, ensuring its normal operation and accuracy. The filter screen 8 inside the filter tank 7 intercepts impurities in the lubricating oil, ensuring that the lubricating oil entering subsequent pipelines is relatively clean. The pressure sensor 11 monitors the pressure inside the filter tank 7 in real time. When the pressure is within the normal range, the filter screen 8 has a good filtration effect, and the lubricating oil can pass through smoothly. When the pressure sensor 11 detects abnormal pressure, i.e., the filter screen 8 is clogged, the pulse controller 14 precisely controls the flow. When the solenoid valve 13 is opened, the high-pressure gas in the high-pressure gas tank 12 rushes towards the filter screen 8 through the backflow pipe 15. The impact force of the high-pressure gas removes the impurities attached to the filter screen 8. The impurities fall into the collection box 17 through the drain pipe 16, thereby restoring the filtering function of the filter screen 8, ensuring the filtering effect of the lubricating oil, and preventing impurities from entering the guide rail and affecting the lubrication and service life of the guide rail. The air pump 19 continuously draws clean gas from the air storage tank 18 and sends it to the air curtain cavity 20. The air curtain cavity 20 sprays the gas around the guide rail 3 in the form of an air curtain, forming a gas barrier around the guide rail to prevent external impurities from falling into the surface of the guide rail 3, keeping the guide rail clean, improving the lubrication effect and the service life of the guide rail, and ensuring the normal operation and accuracy of the CNC vertical lathe guide rail.

[0040] Furthermore, the water pump 9, acting as a power source, directs the filtered lubricating oil through the oil delivery hose 401 to the lubrication tank 402 of the frame 2, ensuring a stable and continuous supply of lubricating oil. The permeation pipe 403, made of porous material, utilizes capillary action and the permeability characteristics of the material's pores to rapidly absorb the lubricating oil in the lubrication tank 402 and diffuse it towards the pipe wall. The flow groove 404 on the inner wall expands the fluid channel, reducing the flow resistance of the lubricating oil. Combined with the material's own permeability characteristics, this achieves accelerated diffusion of the lubricating oil from the inside of the pipe to the pipe wall, allowing the lubricating oil to quickly contact the guide rail surface. The electromagnetic vibrator 405 converts electrical energy into high-frequency mechanical vibration, breaking the viscous resistance inside the lubricating oil, accelerating the flow rate, and promoting the uniform distribution of the lubricating oil during the penetration process. This avoids local accumulation or insufficient supply caused by gravity and uneven material porosity, ensuring that the lubricating oil seeps out from the penetration tube 403 at a stable flow rate. The guide groove 406 on the outer wall of the guide rail 3 guides the seeping lubricating oil to diffuse along a preset path through a specific groove design, so that the lubricating oil forms a continuous and uniform oil film on the guide rail surface, significantly improving lubrication efficiency and lubrication coverage on the guide rail surface.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A guide rail lubrication device for a CNC vertical lathe, comprising a worktable (1), a frame (2), and a guide rail (3), characterized in that: An oil storage tank (5) is fixedly connected to the top of the workbench (1). An electric one-way valve (6) is fixedly connected to the front side of the oil storage tank (5). A filter canister (7) is fixedly connected to the front end of the electric one-way valve (6). A pressure sensor (11) is fixedly connected to the front end of the inner wall of the filter canister (7). A filter screen (8) is fixedly connected to the inner wall of the filter canister (7). A water pump (9) is fixedly connected to the top of the workbench (1). An oil extraction pipe (10) is connected to the right side of the water pump (9). A high-pressure gas tank (12) is fixedly connected to the top right side of the workbench (1). A solenoid valve (13) is fixedly connected to the front side of the high-pressure gas tank (12). A pulse controller (14) is fixedly connected to the bottom end of the solenoid valve (13). A backflush pipe (15) is fixedly connected to the front end of the solenoid valve (13). A sewage pipe (16) is connected to the bottom end of the filter tank (7). A storage box (17) is fixedly connected to the rear end of the sewage pipe (16). An air curtain sealing assembly is provided on the top of the workbench (1). A lubrication mechanism (4) is provided on the inner wall of the frame (2). The lubrication mechanism (4) is used to lubricate the guide rail (3).

2. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: The lubrication mechanism (4) includes an oil delivery hose (401), the top of which is fixedly connected to the bottom of the water pump (9). The inner wall of the frame (2) is provided with a lubrication groove (402), the inner wall of which is fixedly connected with a permeation pipe (403), the inner wall of which is provided with a flow groove (404), the front end of which is fixedly connected with an electromagnetic vibrator (405), and the outer wall of the guide rail (3) is provided with multiple flow guide grooves (406).

3. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: The air curtain sealing assembly includes an air storage tank (18), the bottom of which is fixedly connected to the top left side of the workbench (1), an air pump (19) is fixedly connected to the top of the air storage tank (18), and an air curtain cavity (20) is fixedly connected to the inner wall of the workbench (1).

4. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: The frame (2) is fixedly connected to lamp holders (23) on both the left and right sides, and lighting lamps (24) are fixedly connected to the two lamp holders (23) on the opposite sides.

5. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: A monitor (25) is fixedly connected to the front left end of the workbench (1), and a buzzer (26) is fixedly connected to the top of the monitor (25).

6. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: The outer wall of the frame (2) is fixedly connected to two sealing rings (27), both of which are annular in design.

7. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: A pressure-reducing pad (21) is fixedly connected to the bottom of the workbench (1), and the pressure-reducing pad (21) is the same size as the bottom of the workbench (1).

8. The CNC vertical lathe guide rail lubrication device according to claim 1, characterized in that: A control console (22) is fixedly connected to the front side of the workbench (1). The control console (22) is electrically connected to the electric check valve (6), water pump (9), pressure sensor (11), solenoid valve (13) and pulse controller (14).

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