A real axis turning process

Abstract

The present application belongs to the technical field of turning processing, in particular to a solid shaft turning process, comprising a rack and a center frame arranged in the rack, further comprising a cleaning device and a lubricating device installed in the rack, the solid shaft turning process, by setting the lubricating device, lubricates the bearing of the center frame, the mounting frame is fixed to the support claw to provide a stable carrier, the scraper, the inclined contact bearing, effectively guides and applies the lubricating oil to a uniform oil film, the oil groove is arranged on the inner wall of the groove, the outwardly inclined oil outlet is located on the upper end of the scraper, the oil flows out and drops on the scraper and applies the rotating bearing by gravity, the oil inlet is connected with the lubricating pump to realize automatic oil replenishment, the low liquid level sensor is sealed and installed, the probe rod penetrates into the oil groove through the sealing element to prevent leakage and accurately measure the low liquid level to trigger oil replenishment, maintain lubrication continuity, the high liquid level sensor is sealed at the top end, the probe rod penetrates into the oil groove to prevent leakage and accurately measure the high liquid level to stop oil supply and prevent overflow, and the double sensors cooperate to maintain the safe range of oil level.

Description

Technical Field

[0001] This invention relates to the field of turning technology, and more particularly to a solid shaft turning process. Background Technology

[0002] Turning is a basic machining method. The spindle of the lathe drives the workpiece to rotate, while the cutting tool fixed on the tool post feeds along the axial or radial direction of the workpiece in a straight or curved motion, thereby removing excess material from the surface of the workpiece to obtain the required geometry, dimensional accuracy and surface roughness. During the turning process, the workpiece is usually clamped in the chuck of the lathe and rotates at high speed with the spindle. For some slender workpieces, such as shafts and tubes, due to their poor rigidity, they are prone to bending deformation and vibration under the combined action of cutting force, gravity and centrifugal force, which leads to a decrease in machining accuracy or even failure to complete the machining. To solve this problem, a center rest is needed as an auxiliary support device.

[0003] A center rest is a fixed device mounted on a lathe guideway. Its function is to provide a stable support point at the middle or tail of the workpiece to enhance its rigidity and reduce its deformation during machining. A center rest typically contains multiple adjustable support jaws that can be adjusted according to the diameter of the workpiece to tightly clamp it onto the cylindrical surface of the workpiece. The contact and relative movement between the support jaws and the workpiece depend on its internal bearing structure, which encloses the rotation axis of the support jaws, allowing the support jaws to rotate with the workpiece or remain relatively stationary while the workpiece rotates, thereby achieving stable support for the workpiece.

[0004] In existing turning processes, broken iron filings remain in the crevices next to the bearings of the center rest, which easily cause scratches on the rod after the product is clamped, and this happens frequently. In addition, the bearings on the center rest wear out quickly and need to be replaced frequently due to friction between them and the product. Summary of the Invention

[0005] In existing turning processes, broken iron filings remain in the gaps next to the bearings of the center rest, which easily cause scratches on the rod after the product is clamped, and this happens frequently. In addition, the bearings on the center rest wear out quickly and need to be replaced frequently due to friction between them and the product. This invention proposes a solid shaft turning process.

[0006] The present invention proposes a solid shaft turning process, which includes a frame and a center support disposed within the frame, and also includes a cleaning device and a lubrication device installed within the frame.

[0007] The cleaning device is located on the outer frame of the central frame and cleans the broken iron pins in the bearing gaps of the central frame. The cleaning device includes an air blowing hole, which blows away the debris in the bearing gaps through a directional airflow.

[0008] The lubrication device is located on the outer frame of the central frame and lubricates the bearings of the central frame. The lubrication device includes an oil tank and a low level sensor. The low level sensor detects the level of lubricating oil in the oil tank through an electrical signal.

[0009] Preferably, the cleaning device further includes an air blowing frame, which is installed on the outer side of the support claw of the central frame by bolt sealing. The outer side of the support claw of the central frame is provided with an air inlet groove and an air outlet groove, and the air blowing pipe of the air blowing frame is located inside the air inlet groove.

[0010] Preferably, the air blowing hole is opened at one end of the air blowing pipe of the air blowing frame, and an air inlet pipe is fixedly connected to the outer side of the air blowing frame. The air inlet pipe is sealed and connected to the blower of the frame through a flexible hose. The start and stop of the blower is controlled by the robot arm sensor of the frame so as to start blowing after the product is taken away.

[0011] Preferably, an air outlet frame is sealed and installed on the outer side of the central frame support claw. The dust collection groove of the air outlet frame is fixedly connected to the air outlet groove. A positioning post is provided on the air outlet frame. The positioning post is slidably inserted into the sliding groove of the central frame support claw. The air outlet at the bottom of the air outlet frame is sealed and connected to the exhaust fan of the frame through a flexible hose. The start and stop of the exhaust fan is controlled by the robot arm sensor of the frame so as to realize the simultaneous start of exhaust after the product is taken away.

[0012] Preferably, the lubrication device further includes a mounting frame, which is fixedly mounted on the support claw of the central frame. A scraper is provided at the front end of the mounting frame at an inward angle. The bottom end of the scraper contacts the bearing of the central frame. The scraper is made of polytetrafluoroethylene.

[0013] Preferably, the oil groove is disposed on the inner wall of the groove of the mounting frame, and the bottom end of the oil groove is provided with an oil outlet at an outward angle. The oil outlet is disposed opposite to the scraper and is located at the upper end of the scraper, so that the lubricating oil flows out from the oil outlet and is guided by the scraper to the bearing of the central frame.

[0014] Preferably, the oil inlet at the top of the oil tank is fixedly connected to the lubrication pump of the frame via a hose, the low liquid level sensor is sealed and installed on the outer side of the mounting frame, and the probe of the low liquid level sensor passes through the mounting hole of the oil tank through a sealing element and then contacts the lubricating oil in the oil tank.

[0015] Preferably, a high liquid level sensor is fixedly installed on the outer side of the top of the oil tank, and the probe of the high liquid level sensor passes through the mounting hole of the oil tank through a sealing element and then contacts the lubricating oil in the oil tank.

[0016] The present invention proposes a solid shaft turning process, comprising the following steps:

[0017] S1: Clamp one end of the solid shaft workpiece to be machined through the lathe chuck, and provide auxiliary support to the other end by the support claw of the center rest, to ensure the stability and straightness of the workpiece during rotation, and to prepare for turning.

[0018] S2: The frame control system starts the lubrication pump, pumping lubricating oil into the oil tank from the top oil inlet through the hose. At the same time, the probes of the high liquid level sensor and the low liquid level sensor continuously monitor the lubricating oil level in the oil tank and feed the liquid level signal back to the control system. When the liquid level is lower than the low liquid level, the control system issues an alarm or automatically starts the oil replenishment program. When the liquid level reaches the high liquid level, the control system stops the oil supply to maintain the normal working level of lubricating oil in the oil tank.

[0019] S3: Before processing begins or after the product is removed, when the robot arm sensor on the frame detects that there are no workpieces in the processing area, the control system automatically starts the blower and exhaust fan. The blower generates a directional airflow through the air inlet pipe and the air blowing pipe of the air blowing frame to blow away the debris in the narrow gap of the central frame bearing. At the same time, the exhaust fan sucks in the blown debris and dust through the air outlet at the bottom of the air outlet frame, and discharges them outside the machine, keeping the bearing area clean.

[0020] S4: The lathe spindle drives the workpiece to rotate, and the tool feeds along the axial or radial direction of the workpiece to perform cutting. The bearing of the center rest rotates synchronously with the workpiece. During this process, the bottom end of the scraper set at the front end of the mounting frame contacts the rotating bearing. The lubricating oil in the oil groove flows out from the oil outlet at the bottom end and is guided by the scraper to continuously provide lubrication for the rotating bearing, reducing friction and wear.

[0021] S5: After the turning process is completed and the workpiece is removed, the robot arm sensor detects the signal change again, and the control system automatically starts the blower and exhaust fan again to synchronously blow and extract dust from the center support bearing area, removing any new debris that may be generated during the machining process, and preparing for the next machining.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. By setting up a cleaning device, the broken iron pieces in the narrow gaps of the center frame bearing are cleaned. The air blowing frame is bolted and fixed to form a sealed cavity. The air inlet and outlet grooves serve as airflow channels. The air blowing pipe and the end air blowing hole ensure that the directional airflow is accurately sprayed into the narrow gaps. The air inlet pipe is connected to the air source to input airflow. The robot arm sensor controls the blower to automatically blow away debris after picking up the part to prevent the accumulation of debris. The air outlet frame is sealed by the positioning column and the slide groove to ensure smooth airflow and dust collection. The dust collection groove is connected to the air outlet groove to remove debris. The exhaust fan is connected to the air outlet to form a negative pressure exhaust system. The robot arm sensor controls the exhaust fan to achieve simultaneous blowing and extraction, thoroughly removing debris and preventing it from falling back, improving the cleaning effect and cleanliness. This solves the existing technical problem that in the turning process, broken iron pieces left in the narrow gaps next to the center frame bearing easily cause scratches on the rod after clamping the product, and this problem occurs frequently.

[0024] 2. By setting up a lubrication device, the bearings of the center frame are lubricated. The mounting frame is fixed to the support claw to provide a stable carrier. The scraper, which is inclined to contact the bearing, effectively guides the lubricating oil to form a uniform oil film. The oil groove is set in the inner wall of the groove, and its outwardly inclined oil outlet is located at the upper end of the scraper. With the help of gravity, the oil flows out and drips onto the scraper and coats the rotating bearing. The oil inlet is connected to the lubrication pump to realize automatic oil replenishment. The low liquid level sensor is sealed and installed. The probe passes through the seal and enters the oil groove to prevent leakage and accurately measure the low liquid level to trigger oil replenishment and ensure continuous lubrication. The high liquid level sensor is sealed and installed at the top. The probe passes through to prevent leakage and accurately measure the high liquid level to stop oil supply and prevent overflow. The dual sensors work together to maintain the oil level within a safe range, realize intelligent management, improve automation and reliability, and solve the existing technical problem that the bearings on the center frame wear quickly and have a high replacement frequency due to friction between the bearings and the product during turning. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a solid shaft turning process proposed in this invention;

[0026] Figure 2 This is a perspective view of the center frame structure of a solid shaft turning process proposed in this invention;

[0027] Figure 3 This is a perspective view of the air-blowing frame structure for a solid shaft turning process proposed in this invention;

[0028] Figure 4 This is a perspective view of an intake pipe structure using a real-shaft turning process proposed in this invention.

[0029] Figure 5 This is a perspective view of the air outlet groove structure for a solid shaft turning process proposed in this invention;

[0030] Figure 6 This is a perspective view of the air vent structure for a solid shaft turning process proposed in this invention.

[0031] Figure 7 This is a perspective view of the air outlet frame structure for a solid shaft turning process proposed in this invention;

[0032] Figure 8 This is a perspective view of the mounting frame structure for a real shaft turning process proposed in this invention;

[0033] Figure 9 This is a perspective view of the oil groove structure for a solid shaft turning process proposed in this invention;

[0034] Figure 10 This is a perspective view of the oil outlet structure of a solid shaft turning process proposed in this invention.

[0035] In the diagram: 1. Frame; 11. Center frame; 2. Air blowing frame; 21. Air inlet slot; 22. Air outlet slot; 3. Air blowing hole; 31. Air inlet pipe; 4. Air outlet frame; 41. Positioning post; 5. Mounting frame; 51. Scraper; 6. Oil tank; 61. Oil outlet; 7. Low liquid level sensor; 8. High liquid level sensor. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figures 1-10 A solid shaft turning process includes a frame 1 and a center support 11 disposed within the frame 1, and also includes a cleaning device and a lubrication device installed within the frame 1.

[0038] like Figure 2-7 As shown, in order to clean the broken iron pins in the bearing gap of the center frame 11, a cleaning device is located on the outer frame of the center frame 11 and cleans the broken iron pins in the bearing gap of the center frame 11. The cleaning device includes an air blowing hole 3, which blows away the debris in the bearing gap through a directional airflow.

[0039] Specifically, to ensure that the airflow can be accurately directed to the bearing gaps, the cleaning device also includes an air blowing frame 2. The air blowing frame 2 is bolted and sealed to the outer side of the support claw of the center frame 11. The outer side of the support claw of the center frame 11 is provided with an air inlet groove 21 and an air outlet groove 22. The air blowing pipe of the air blowing frame 2 is located inside the air inlet groove 21. The air blowing frame 2 is fixed to the support claw with bolts to form a sealed air blowing and dust collection chamber. The air inlet groove 21 and the air outlet groove 22 are respectively opened on the outer side of the support claw, which are the channels for the airflow to enter and exit the air blowing frame 2. The air inlet groove 21 is used to introduce clean compressed air, and the air outlet groove 22 is used to discharge the airflow carrying debris. The air blowing pipe is located inside the air inlet groove 21 to ensure that the airflow can be accurately directed to the bearing gaps.

[0040] Specifically, to ensure cleaning is performed at the appropriate time and to prevent debris accumulation, an air inlet 3 is located at one end of the air pipe of the air blowing frame 2. An air inlet pipe 31 is fixedly connected to the outer side of the air blowing frame 2. The air inlet pipe 31 is sealed to the blower of the frame 1 through a hose. The start and stop of the blower is controlled by the robotic arm sensor of the frame 1 so that air blowing begins after the product is removed. The air inlet 3, located at the end of the air pipe, is the final outlet of the directional airflow, which accurately sprays the airflow into the bearing gaps. The air inlet pipe 31 connects the air blowing frame 2 to an external air source, serving as the airflow input channel. The start and stop of the blower are controlled by the robotic arm sensor, thus automating the cleaning action. That is, when the product is removed (the robotic arm sensor detects a signal change), the control system immediately starts the blower. The airflow passes through the air inlet pipe 31, the air pipe, and the air inlet 3 to directionally blow the bearing gaps, ensuring cleaning is performed at the appropriate time and preventing debris accumulation.

[0041] Specifically, to improve the cleaning effect and the cleanliness of the equipment, an air outlet frame 4 is sealed and installed on the outer side of the support claw of the central frame 11. The dust collection groove of the air outlet frame 4 is fixedly connected to the air outlet groove 22. A positioning post 41 is provided on the air outlet frame 4. The positioning post 41 is slidably inserted into the sliding groove of the support claw of the central frame 11. The air outlet at the bottom of the air outlet frame 4 is sealed and connected to the exhaust fan of the frame 1 through a hose. The start and stop of the exhaust fan is controlled by the robot arm sensor of the frame 1 to realize the simultaneous start of exhaust after the product is removed. The air outlet frame 4 is connected to the positioning post 41 is slidably inserted into the groove of the support claw and sealed to ensure smooth airflow and effective collection of debris. The dust collection tank and the air outlet tank 22 are fixedly connected so that the blown debris can smoothly enter the dust collection tank. The exhaust fan is sealed to the bottom air outlet of the air outlet frame 4 through a hose to form an exhaust system. The robot arm sensor is connected to the control of the exhaust fan to realize the synchronous start of exhaust and blowing, so as to remove debris more thoroughly and prevent it from falling back into the bearing, thereby improving the cleaning effect and the cleanliness of the equipment.

[0042] like Figure 8-10 As shown, in order to lubricate the bearings of the center frame 11, a lubrication device is located on the outer frame of the center frame 11 and lubricates the bearings of the center frame 11. The lubrication device includes an oil tank 6 and a low level sensor 7. The low level sensor 7 detects the level of lubricating oil in the oil tank 6 through an electrical signal.

[0043] Specifically, to reduce friction and wear between the scraper 51 and the bearing, the lubrication device also includes a mounting frame 5, which is fixedly mounted on the support claw of the center frame 11. The scraper 51 is inclined inward at the front end of the mounting frame 5, and the bottom end of the scraper 51 contacts the bearing of the center frame 11. The scraper 51 is made of polytetrafluoroethylene (PTFE) and is fixed to the support claw by the mounting frame 5. By tilting the scraper 51 and contacting the bearing, the lubricating oil flowing from the oil groove 6 can be effectively guided and coated onto the contact surface of the bearing to form a uniform oil film, achieving reliable lubrication. The PTFE material of the scraper 51 has an extremely low coefficient of friction and excellent self-lubricating properties, which can reduce friction and wear between the scraper 51 and the bearing. At the same time, it has good chemical corrosion resistance and high temperature resistance, can adapt to the environment of lubricating oil, ensure long-term stable operation, and extend the service life of the scraper 51 and the bearing.

[0044] Specifically, in order to evenly apply the lubricating oil to the bearing below that rotates with the workpiece, an oil groove 6 is set on the inner wall of the groove of the mounting frame 5. The bottom end of the oil groove 6 is inclined outward and has an oil outlet 61. The oil outlet 61 is set opposite to the scraper 51 and is located at the upper end of the scraper 51, so that after the lubricating oil flows out from the oil outlet 61, it is guided by the scraper 51 to the bearing of the center frame 11. Because the oil groove 6 is set on the inner wall of the groove of the mounting frame 5 and the oil outlet 61 is inclined outward and located at the upper end of the scraper 51, the lubricating oil can flow smoothly out from the oil outlet 61 under the action of gravity and drip directly onto the inclined scraper 51. The scraper 51 then evenly applies the lubricating oil to the bearing below that rotates with the workpiece for lubrication.

[0045] Specifically, to prevent lubricating oil leakage, the oil inlet at the top of the oil tank 6 is fixedly connected to the lubrication pump of the frame 1 via a hose. The low level sensor 7 is sealed and installed on the outer side of the mounting frame 5. The probe of the low level sensor 7 passes through the mounting hole of the oil tank 6 through a seal and then contacts the lubricating oil in the oil tank 6. The oil inlet of the oil tank 6 is connected to the lubrication pump of the frame 1 via a hose. When the low level sensor 7 detects that the oil level is too low, the control system starts the lubrication pump and automatically replenishes the lubricating oil to the oil tank 6 to ensure continuous lubrication. The low level sensor 7 is sealed and installed on the outer side of the mounting frame 5. Its probe passes through the mounting hole of the oil tank 6 through a seal and contacts the lubricating oil to ensure the sensor's sealing performance, that is, to prevent lubricating oil leakage. At the same time, it can ensure that the sensor can accurately sense the oil level, thereby avoiding manual intervention and improving the automation level and operational reliability of the equipment.

[0046] Specifically, to ensure that the lubricating oil in the oil tank 6 is always within a safe liquid level range, a high liquid level sensor 8 is fixedly installed on the outer side of the top of the oil tank 6. The probe of the high liquid level sensor 8 passes through the mounting hole of the oil tank 6 through a sealing element and then contacts the lubricating oil in the oil tank 6. The high liquid level sensor 8 is fixedly installed on the outer side of the top of the oil tank 6. When the lubrication pump supplies oil to the oil tank 6, the high liquid level sensor 8 can detect in time that the oil level has reached the upper limit and send a signal to the control system to stop the oil supply, thereby preventing the lubricating oil from overflowing from the oil tank 6, causing waste and pollution. The high liquid level sensor 8 is used in conjunction with the low liquid level sensor 7 to ensure that the lubricating oil in the oil tank 6 is always within a safe liquid level range, so as to realize the intelligent management of the lubrication system.

[0047] The present invention proposes a solid shaft turning process, comprising the following steps:

[0048] S1: One end of the solid shaft workpiece to be machined is clamped by the lathe chuck, and the other end is assisted by the support claw of the center rest 11 to ensure the stability and straightness of the workpiece during rotation, thus preparing it for turning.

[0049] S2: The control system of frame 1 starts the lubrication pump and pumps the lubricating oil into the oil tank 6 from the top oil inlet through the hose. At the same time, the probes of the high liquid level sensor 8 and the low liquid level sensor 7 continuously monitor the lubricating oil level in the oil tank 6 and feed the liquid level signal back to the control system. When the liquid level is lower than the low liquid level, the control system issues an alarm or automatically starts the oil replenishment program. When the liquid level reaches the high liquid level, the control system stops the oil supply to maintain the normal working liquid level of the lubricating oil in the oil tank 6.

[0050] S3: Before processing begins or after the product is removed, when the robot arm sensor of frame 1 detects that there is no workpiece in the processing area, the control system automatically starts the blower and exhaust fan. The blower generates a directional airflow through the air inlet pipe 31 and the air blowing pipe of the air blowing frame 2 to blow away the debris in the narrow gap of the bearing of the center frame 11. At the same time, the exhaust fan sucks the blown debris and dust through the air outlet at the bottom of the air outlet frame 4 into the dust collection tank and the air outlet tank 22 and discharges them outside the machine to keep the bearing area clean.

[0051] S4: The lathe spindle drives the workpiece to rotate, and the tool feeds along the axial or radial direction of the workpiece to perform cutting. The bearing of the center support 11 rotates synchronously with the workpiece. During this process, the bottom end of the scraper 51, which is inclined at the front end of the mounting frame 5, contacts the rotating bearing. The lubricating oil in the oil groove 6 flows out from the oil outlet 61 at the bottom end and is guided by the scraper 51 to continuously provide lubrication for the rotating bearing, reducing friction and wear.

[0052] S5: After the turning process is completed and the workpiece is removed, the robot arm sensor detects the signal change again, and the control system automatically starts the blower and exhaust fan again to synchronously blow and extract dust from the bearing area of ​​center frame 11, removing any new debris that may be generated during the machining process, and preparing for the next machining.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A solid shaft turning process, comprising a frame (1) and a center rest (11) disposed within the frame (1), characterized in that: It also includes a cleaning device and a lubrication device installed in the frame (1); The cleaning device is located on the outer frame of the central frame (11) and cleans the broken iron pins in the bearing gap of the central frame (11). The cleaning device includes an air blowing hole (3), which blows away the debris in the bearing gap of the central frame (11) through directional airflow. The lubrication device is located on the outer frame of the center frame (11) and lubricates the bearings of the center frame (11). The lubrication device includes an oil tank (6) and a low liquid level sensor (7). The low liquid level sensor (7) detects the liquid level of the lubricating oil in the oil tank (6) through an electrical signal.

2. The solid shaft turning process according to claim 1, characterized in that: The cleaning device also includes an air blowing frame (2), which is installed on the outer side of the support claw of the central frame (11) by bolt sealing. The outer side of the support claw of the central frame (11) is provided with an air inlet groove (21) and an air outlet groove (22), and the air blowing pipe of the air blowing frame (2) is located inside the air inlet groove (21).

3. The solid shaft turning process according to claim 2, characterized in that: The air blowing hole (3) is opened at one end of the air blowing pipe of the air blowing frame (2). The outer side of the air blowing frame (2) is fixedly connected to the air inlet pipe (31). The air inlet pipe (31) is sealed and connected to the blower of the frame (1) through a hose. The start and stop of the blower of the frame (1) is controlled by the robot arm sensor of the frame (1) so as to start blowing after the product is taken away.

4. The solid shaft turning process according to claim 3, characterized in that: An air outlet frame (4) is sealed and installed on the outer side of the support claw of the central frame (11). The dust collection groove of the air outlet frame (4) is fixedly connected to the air outlet groove (22). A positioning column (41) is provided on the air outlet frame (4). The positioning column (41) is slidably inserted into the sliding groove of the support claw of the central frame (11). The air outlet hole at the bottom of the air outlet frame (4) is sealed and connected to the exhaust fan of the frame (1) through a hose. The start and stop of the exhaust fan of the frame (1) is controlled by the robot arm sensor of the frame (1) so as to realize the synchronous start of exhaust after the product is taken away.

5. The solid shaft turning process according to claim 1, characterized in that: The lubrication device also includes a mounting frame (5), which is fixedly mounted on the support claw of the central frame (11). The front end of the mounting frame (5) is inclined inward and a scraper (51) is provided. The bottom end of the scraper (51) contacts the bearing of the central frame (11). The material of the scraper (51) is polytetrafluoroethylene.

6. The solid shaft turning process according to claim 5, characterized in that: The oil groove (6) is provided on the inner wall of the groove of the mounting frame (5). The bottom end of the oil groove (6) is inclined outward and has an oil outlet (61). The oil outlet (61) is opposite to the scraper (51) and is located at the upper end of the scraper (51) so that the lubricating oil flows out from the oil outlet (61) and is guided to the bearing of the center frame (11) by the scraper (51).

7. The solid shaft turning process according to claim 6, characterized in that: The oil inlet at the top of the oil tank (6) is fixedly connected to the lubrication pump of the frame (1) through a hose. The low liquid level sensor (7) is sealed and installed on the outer side of the mounting frame (5). The probe of the low liquid level sensor (7) passes through the mounting hole of the oil tank (6) through a sealing element and then contacts the lubricating oil in the oil tank (6).

8. The solid shaft turning process according to claim 6, characterized in that: A high liquid level sensor (8) is fixedly installed on the outer side of the top of the oil tank (6). The probe of the high liquid level sensor (8) passes through the mounting hole of the oil tank (6) through a sealing element and then contacts the lubricating oil in the oil tank (6).

9. A solid shaft turning process, using the solid shaft turning process as described in any one of claims 1-8, characterized in that: S1: One end of the solid shaft workpiece to be processed is clamped by the lathe chuck, and the other end is supported by the support claw of the center rest (11) to ensure the stability and straightness of the workpiece during rotation, and to prepare for turning. S2: The control system of the frame (1) starts the lubrication pump and pumps the lubricating oil from the top oil inlet of the oil tank (6) into the oil tank (6) through the hose. At the same time, the probes of the high liquid level sensor (8) and the low liquid level sensor (7) continuously monitor the lubricating oil level in the oil tank (6) and feed the liquid level signal back to the control system. When the liquid level is lower than the low liquid level, the control system issues an alarm or automatically starts the oil replenishment program. When the liquid level reaches the high liquid level, the control system stops the oil supply to maintain the normal working liquid level of the lubricating oil in the oil tank (6). S3: Before processing begins or after the product is removed, when the robot arm sensor of the frame (1) detects that there is no workpiece in the processing area, the control system automatically starts the blower and the exhaust fan. The blower generates a directional airflow through the air inlet pipe (31) and the air blowing pipe of the air blowing frame (2) to blow away the debris in the bearing gap of the center frame (11). At the same time, the exhaust fan sucks in the blown debris and dust through the air outlet at the bottom of the air outlet frame (4) and the dust collection groove and the air outlet groove (22) and discharges them outside the machine to keep the bearing area clean. S4: The lathe spindle drives the workpiece to rotate, and the tool feeds along the axial or radial direction of the workpiece to perform cutting. The bearing of the center frame (11) rotates synchronously with the workpiece. During this process, the bottom end of the scraper (51) set at the front end of the mounting frame (5) contacts the rotating bearing. The lubricating oil in the oil groove (6) flows out from the oil outlet (61) at the bottom end and is guided by the scraper (51) to continuously provide lubrication for the rotating bearing, reducing friction and wear. S5: When the turning process is completed and the workpiece is removed, the robot arm sensor detects the signal change again, and the control system automatically starts the blower and exhaust fan again to synchronously blow and extract dust from the bearing area of ​​the center frame (11) to remove new debris that may be generated during the processing and prepare for the next processing.

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