Servo feed mechanism for a lathe and synchronous control device therefor

Abstract

This invention discloses a servo feed mechanism for a lathe and its synchronous control device, belonging to the field of machine tool feed control technology. It includes a frame with a groove on its upper surface. A feed device is disposed inside the groove, and the feed device includes a moving plate. Linear guides are symmetrically fixedly connected to the lower inner surface of the groove, and sliders are slidably connected to the outer walls of the two linear guides. This invention employs a multi-axis servo feed combined with a transmission structure of lead screws and linear guides. Servo motors one and two drive lead screws one and two to rotate, respectively, driving moving plates one and two to achieve precise multi-directional feed. A servo motor three drives a rotary platform to complete angle adjustment. Combined with a lathe chuck for stable workpiece clamping, it can flexibly adapt to the turning requirements of workpieces of different specifications, thereby effectively reducing transmission backlash and significantly improving the smoothness of feed movement and angle adjustment.

Description

Technical Field

[0001] This invention relates to the field of machine tool feed control technology, and in particular to a servo feed mechanism for a lathe and its synchronous control device. Background Technology

[0002] In the field of machining, lathes are the core equipment for turning rotary parts. The motion accuracy and response speed of their servo feed mechanism, as well as the linkage and coordination of their synchronous control device, directly determine the workpiece's machining quality, production efficiency, and equipment operation stability. They are widely used in turning machining scenarios for various parts such as automotive parts, precision instruments, and general machinery. Currently, the servo feed mechanism and synchronous control device of existing lathes still have many technical defects, making it difficult to meet the processing requirements of high precision, high efficiency and multiple working conditions. In terms of the servo feed mechanism, the metal chips generated by the linear guide rail during the processing of the existing device are easy to invade the gap between the guide rail and the slider, causing abrasive wear of the guide rail, reducing the guiding accuracy and motion stability. After long-term use, problems such as feed jamming and increased positioning deviation are likely to occur, affecting the workpiece processing accuracy. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a solution to the problems of insufficient accuracy of servo feed mechanisms and the easy impact of debris on the life of guide rails in the prior art.

[0004] Technical solution: A servo feed mechanism for a lathe and its synchronous control device, including a frame, wherein a groove is formed on the upper surface of the frame, and a feed device is arranged inside the groove; The feeding device includes a moving plate, and linear guides are symmetrically fixedly connected to the lower inner surface of the groove. Sliders are slidably connected to the outer side walls of the two linear guides. The upper surfaces of the two sliders are fixedly connected to the lower surface of the moving plate. A rotating platform is provided above the moving plate, and a vertical plate is fixedly connected to the upper surface of the rotating platform. A lathe chuck is fixedly connected to the right side of the vertical plate. A servo motor is fixedly connected to the left side of the frame. A lead screw is fixedly connected to the right end of the output shaft of the servo motor. The right end of the lead screw is rotatably connected to the right side of the groove through a rotating shaft. The outer side walls of the lead screw are threadedly connected to the inner surface of the moving plate.

[0005] Furthermore, L-shaped mounting plates are symmetrically fixedly connected to the lower surface of the frame, and the upper surfaces of the two L-shaped mounting plates are symmetrically provided with through-type fixing grooves.

[0006] Furthermore, a fixed plate is symmetrically fixedly connected to the upper surface of the first movable plate, and a servo motor is fixedly connected to the rear surface of the fixed plate. A lead screw is fixedly connected to the front end of the output shaft of the servo motor. The front end of the lead screw is rotatably connected to the rear surface of the fixed plate via a rotating shaft. A second movable plate is provided below the rotating platform. A linear guide rail is fixedly connected to the upper surface of the first movable plate, and a slider is slidably connected to the outer wall of the linear guide rail. The upper surface of the slider is fixedly connected to the lower surface of the second movable plate, and the outer wall of the lead screw is threadedly connected to the inside of the second movable plate.

[0007] Furthermore, the upper surface of the second movable plate is provided with a mounting groove, and the lower surface inside the mounting groove is fixedly connected to a third servo motor. The top end of the output shaft of the third servo motor is fixedly connected to the center of the lower surface of the rotating platform.

[0008] Furthermore, scraper 1 is fixedly connected to the left and right sides of both slider 1, and notches 1 are opened on the outer side walls of both scraper 1. The cross-sectional profiles of the multiple notches 1 are adapted to the cross-sectional profiles of the two linear guide rails 1 respectively. Inclined grooves are symmetrically opened on the upper surface of the moving plate 1. Scraper 2 is fixedly connected to the front and rear surfaces of slider 2. Through notches 2 are opened on the opposite sides of the two scraper 2. The cross-sectional profiles of the two notches 2 are adapted to the cross-sectional profiles of the linear guide rails 2. The lower side of the outer side walls of the two scraper 2 respectively contacts the outer side walls of the two inclined grooves.

[0009] Furthermore, the lower surface of the frame is symmetrically fixedly connected with a fixing frame, and a collection box is provided inside each of the two fixing frames. The upper inner surface of each of the two fixing frames and the lower inner surface of the groove are both provided with an inclined connecting groove.

[0010] Furthermore, a control box is fixedly connected to the center of the lower surface of the frame, a position encoder one is fixedly connected to the right side of the frame, the left side of the position encoder one is connected to the right end of the lead screw one via a flexible coupling, a position encoder two is fixedly connected to the front surface of the front fixed plate, the rear surface of the position encoder two is connected to the front end of the lead screw two via a flexible coupling, and an angle sensor is fixedly connected to the right side of the vertical plate and below the lathe chuck.

[0011] Furthermore, connecting plates are fixedly connected to the upper surfaces of the two scraper blades and the two scraper blades, and semicircular plates are fixedly connected to the upper surfaces of the connecting plates. Cleaning brushes are provided on the inner walls of the semicircular plates. Semicircular plates are provided above the semicircular plates. Cleaning brushes are provided on the inner walls of the semicircular plates. Locking bolts are provided on the upper surfaces of the semicircular plates. The bottom ends of the locking bolts extend to the bottom of the semicircular plates. Locking nuts are threaded onto the outer walls of the locking bolts and located on the lower surfaces of the semicircular plates. The inner walls of the cleaning brushes and the cleaning brushes are in contact with the outer walls of the lead screw and the lead screw.

[0012] Furthermore, a control center is fixedly connected to the left side of the front surface of the frame.

[0013] Beneficial effects: This invention adopts a multi-axis servo feed combined with a lead screw and linear guide transmission structure. Servo motor 1 and servo motor 2 drive lead screw 1 and lead screw 2 to rotate, thereby driving moving plate 1 and moving plate 2 to achieve multi-directional precise feed. Servo motor 3 drives the rotary platform to complete angle adjustment. Combined with the lathe chuck to stably hold the workpiece, it can flexibly adapt to the turning requirements of workpieces of different specifications, thereby effectively reducing transmission backlash, greatly improving the smoothness of feed movement and angle adjustment, and ensuring basic machining accuracy. This invention uses scraper one and scraper two to scrape away machining debris from the surfaces of linear guide rail one and linear guide rail two in real time. In conjunction with cleaning brush one and cleaning brush two, the surfaces of lead screw one and lead screw two are brushed to remove impurities. The scraped debris can be guided through the inclined groove and inclined connecting groove to the inside of the collection box for centralized collection. This effectively prevents metal debris from accumulating in the gap between the guide rail and the lead screw, prevents component wear and jamming, reduces rust failure, extends the service life of the feed transmission components, and reduces the burden of daily equipment maintenance. This invention uses position encoder one and position encoder two to collect the rotational displacement data of two sets of lead screws in real time, and angle sensors to accurately detect the workpiece clamping angle. All kinds of detection signals are uniformly transmitted to the control box and control center, which can provide real-time feedback on the equipment's operating status, realize the linkage and synchronous control of multi-axis motion, correct positioning deviations in a timely manner, solve the problems of asynchronous feed and large positioning errors in traditional lathes, and improve the overall automation level of the equipment and the consistency of processing operations. The overall installation structure of this invention is reasonably designed. An L-shaped mounting plate with a fixing groove is set at the bottom of the frame, which facilitates the quick assembly and fine-tuning of the overall position of the device. The installation is firm and stable, which can effectively buffer the vibration impact during operation. Moreover, multiple sets of semi-circular plates one and two are locked together by locking bolts and locking nuts, which makes disassembly and assembly simple and convenient, and facilitates the replacement and maintenance of cleaning brushes in the later stage. The control center integrates operation and control functions, and the operation is simple and intuitive, which effectively improves the ease of use of the equipment and its adaptability to various scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial front view of the cross-section of the present invention; Figure 3 This is a rear view structural schematic diagram of the feeding device of the present invention; Figure 4 This is a side view of the scraper, semi-circular plate, cleaning brush, and locking bolt of the present invention. Figure 5 This is a bottom view of the linear guide rail, slider, and moving plate of the present invention. Figure 6 This is the present invention. Figure 2 A magnified structural diagram of point A in the middle.

[0015] In the diagram: 1. Frame; 2. Groove; 3. Feed device; 4. L-shaped mounting plate; 5. Fixing slot; 6. Control box; 7. Position encoder one; 8. Position encoder two; 9. Angle sensor; 10. Control center; 301. Moving plate one; 302. Linear guide rail one; 303. Slider one; 304. Rotary platform; 305. Vertical plate; 306. Lathe chuck; 307. Servo motor one; 308. Lead screw one; 309. Fixing plate; 310. Servo motor two; 311. Lead screw two; 31 2. Moving plate two; 313. Linear guide rail two; 314. Slider two; 315. Mounting slot; 316. Servo motor three; 317. Scraper one; 318. Notch one; 319. Inclined groove; 320. Scraper two; 321. Notch two; 322. Fixing frame; 323. Collection box; 324. Inclined connecting groove; 325. Connecting plate; 326. Semicircular plate one; 327. Cleaning brush plate one; 328. Semicircular plate two; 329. Cleaning brush plate two; 330. Locking bolt; 331. Locking nut. Detailed Implementation

[0016] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example like Figures 1-6As shown, a servo feed mechanism for a lathe and its synchronous control device are provided, including a frame 1. A groove 2 is provided on the upper surface of the frame 1, and a feed device 3 is provided inside the groove 2. The feed device 3 includes a moving plate 301. Linear guide rails 302 are symmetrically fixedly connected to the lower surface of the groove 2. Slider 303 is slidably connected to the outer walls of the two linear guide rails 302. The upper surfaces of the two sliders 303 are fixedly connected to the lower surface of the moving plate 301. A rotary platform 304 is provided above the moving plate 301. A vertical plate 305 is fixedly connected to the upper surface of the rotary platform 304. A lathe chuck 306 is fixedly connected to the right side of the vertical plate 305. A servo motor 307 is fixedly connected to the left side of the frame 1. A lead screw 308 is fixedly connected to the right end of the output shaft of the servo motor 307. The right end of the lead screw 308 is rotatably connected to the right side of the groove 2 through a rotating shaft. The outer walls of the lead screw 308 are threadedly connected to the inside of the moving plate 301. A fixed plate 309 is symmetrically fixedly connected to the upper surface of the movable plate 301. A servo motor 310 is fixedly connected to the rear surface of the rear fixed plate 309. A lead screw 311 is fixedly connected to the front end of the output shaft of the servo motor 310. The front end of the lead screw 311 is rotatably connected to the rear surface of the front fixed plate 309 through a rotating shaft. A movable plate 312 is provided below the rotating platform 304. A linear guide rail 313 is fixedly connected to the upper surface of the movable plate 301. A slider 314 is slidably connected to the outer wall of the linear guide rail 313. The upper surface of the slider 314 is fixedly connected to the lower surface of the movable plate 312. The outer wall of the lead screw 311 is threadedly connected to the inside of the movable plate 312. The upper surface of the movable plate 312 is provided with a mounting groove 315. The lower surface of the inner part of the mounting groove 315 is fixedly connected to a servo motor 316. The top end of the output shaft of the servo motor 316 is fixedly connected to the center of the lower surface of the rotating platform 304. This device uses a frame 1 and a groove 2 to support and limit the overall structure. The feeding device 3 is arranged inside the groove 2. The moving plate 301 slides smoothly longitudinally with the help of a linear guide rail 302 and a slider 303. In conjunction with the servo motor 307 driving the lead screw 308 to rotate, the precise reciprocating feeding motion of the moving plate 301 is achieved by threaded transmission, ensuring the guiding stability of the longitudinal feed. A fixing plate 309 is set above the moving plate 301 to fix and support the servo motor 310. The servo motor 310 drives the lead screw 311 to rotate. Combined with the sliding cooperation of the linear guide rail 313 and the slider 314, the moving plate 312 is driven to move smoothly laterally, realizing the lateral feed adjustment. The mounting groove 315 inside the moving plate 312 can stably fix the servo motor 316. The servo motor 316 output shaft drives the rotary platform 304 to adjust its angle. The top of the rotary platform 304 is fixed with a vertical plate 305 and a lathe chuck 306, which can stably clamp and fix the workpiece to be processed. The workpiece can adjust its angle and position synchronously with the rotary platform 304. The combination of multiple servo motors with lead screws and linear guides effectively improves the smoothness of the feed motion and the accuracy of position adjustment. At the same time, it can realize the integrated adjustment of multi-directional displacement and angle, adapting to the clamping and turning requirements of workpieces of different specifications. The structure is rigid and the motion response is sensitive. With the subsequent synchronous control device, the motion of each axis can be coordinated and linked, effectively improving the problems of feed jamming, single adjustment and large workpiece clamping position limitation of traditional lathes, and significantly improving the versatility and operational stability of lathe processing.

[0018] like Figure 1 and Figure 2 As shown, L-shaped mounting plates 4 are symmetrically fixedly connected to the lower surface of the frame 1, and through-type fixing grooves 5 are symmetrically opened on the upper surface of the two L-shaped mounting plates 4. The L-shaped mounting plate 4 provides stable support and limit for the frame 1, effectively enhancing the structural rigidity and installation stability of the overall device and preventing shaking or displacement during operation. The two L-shaped mounting plates 4 have symmetrical through-hole fixing slots 5 on their upper surfaces, which facilitates the use of fasteners to complete the fixed assembly of the entire device. The installation is highly adaptable and can be flexibly adapted to different mounting surfaces and installation conditions. At the same time, the through-hole structure can accommodate the fine-tuning requirements of the installation position, reducing the difficulty of assembly alignment and improving the convenience of disassembly, transportation and subsequent maintenance of the equipment, further ensuring the overall stability of the servo feed mechanism during long-term continuous operation.

[0019] like Figures 1-5As shown, scrapers 317 are fixedly connected to the left and right sides of the two sliders 303. The outer walls of the two scrapers 317 are provided with notches 318. The cross-sectional profiles of the multiple notches 318 are adapted to the cross-sectional profiles of the two linear guides 302. The upper surface of the moving plate 301 is symmetrically provided with inclined grooves 319. Scrapers 320 are fixedly connected to the front and rear surfaces of the slider 314. Through notches 321 are provided on the opposite sides of the two scrapers 320. The cross-sectional profiles of the two notches 321 are adapted to the cross-sectional profiles of the linear guides 313. The lower side of the outer walls of the two scrapers 320 are in contact with the outer walls of the two inclined grooves 319. Two sliders 303 are fixedly connected to scraper 317 on both sides. The notch 318 on the outer wall of scraper 317 fits the shape of linear guide 302, allowing it to slide synchronously with slider 303. This scrapes away metal debris and impurities adhering to the surface of linear guide 302 in real time, preventing debris from entering the sliding gap and causing jamming or wear, ensuring smooth sliding motion. Scrapers 320 fixed to the front and rear sides of slider 314 fit against the outer wall of linear guide 313 via notch 321, synchronously... After the guide rail surface cleaning is completed, the scraped debris falls into the inclined groove 319 on the upper surface of the moving plate 301 for centralized collection and guidance, preventing debris accumulation and secondary contamination of the guide rail structure. The entire system, through the front and rear bidirectional scrapers and the guiding structure of the inclined groove 319, achieves real-time self-cleaning of the two sets of linear guide rails and centralized collection of debris, effectively reducing guide rail wear, extending the service life of components, continuously maintaining the moving accuracy and operational stability of the feeding mechanism, and reducing the adverse effects of external impurities on precision feeding motion.

[0020] like Figure 1 and Figure 2 As shown, a fixed frame 322 is symmetrically fixedly connected to the lower surface of the frame 1. A collection box 323 is provided inside the two fixed frames 322. The upper surface of the inner surface of the two fixed frames 322 and the lower surface of the inner surface of the groove 2 are both provided with an inclined connecting groove 324. A fixed frame 322 is symmetrically provided on the lower surface of the frame 1. A collection box 323 can be detachably placed inside the fixed frame 322. The upper surface inside the fixed frame 322 is connected to the lower surface inside the groove 2, and an inclined connecting groove 324 is formed. The processing debris scraped off by scraper 1 317 and scraper 2 320 can slide down and be guided along the inclined groove 319 and the inclined connecting groove 324, and finally fall into the collection box 323 below for centralized collection and storage. This avoids metal debris from scattering and accumulating around the guide rail and inside the equipment, and prevents long-term accumulation of debris from causing mechanical jamming, parts corrosion and wear of precision structures. At the same time, the collection box 323 adopts a pull-out installation structure, which is convenient to remove and clean the debris regularly. The whole system forms a complete debris guidance, collection and cleaning system, which effectively optimizes the equipment operating environment, reduces the difficulty of daily maintenance, and ensures the running accuracy and durability of each moving part of the servo feed mechanism for a long time.

[0021] like Figure 3 , Figure 4 and Figure 6 As shown, connecting plates 325 are fixedly connected to the upper surfaces of two scraper blades 317 and two scraper blades 320. Semicircular plates 326 are fixedly connected to the upper surfaces of multiple connecting plates 325. Cleaning brushes 327 are provided on the inner walls of multiple semicircular plates 326. Semicircular plates 328 are provided above multiple semicircular plates 326. Cleaning brushes 329 are provided on the inner walls of multiple semicircular plates 328. Locking bolts 330 are provided on the upper surfaces of multiple semicircular plates 328. The bottom ends of multiple locking bolts 330 extend to the bottom of multiple semicircular plates 326. Locking nuts 331 are threadedly connected to the outer walls of multiple locking bolts 330 and located on the lower surfaces of multiple semicircular plates 326. The inner walls of multiple cleaning brushes 327 and multiple cleaning brushes 329 are in contact with the outer walls of lead screws 308 and 311, respectively. Connecting plates 325 are fixedly installed on the upper surfaces of both scraper blades 317 and 320. The connecting plates 325 securely connect semicircular plate 326. Cleaning brush 327 is arranged inside semicircular plate 326. Semicircular plate 328 is correspondingly positioned above semicircular plate 326. Cleaning brush 329 is fitted inside semicircular plate 328. Locking bolts 330 and locking nuts 331 interlock, allowing for quick assembly and disassembly of semicircular plate 326 and semicircular plate 328, and ensuring a secure enclosure. This allows cleaning brush 327 and cleaning brush 329 to tightly fit the outer circumference of lead screw 308 and lead screw 311. During the rotation of the lead screw, metal shavings, dust, and other impurities adhering to the lead screw surface can be brushed off in real time, preventing debris from accumulating inside the lead screw thread clearance. This effectively prevents problems such as wear, jamming, and corrosion of the lead screw, ensuring the smoothness and transmission accuracy of the lead screw drive engagement. At the same time, the combined semi-circular enclosure structure with bolt locking facilitates the disassembly, replacement, and maintenance of cleaning brush 327 and cleaning brush 329 in the later stages. The structure is easy to assemble and disassemble, and has good sealing and cleaning protection effects, further improving the self-cleaning protection system of the overall mechanism and continuously improving the service life and long-term operational stability of the servo feed transmission components.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, a control box 6 is fixedly connected to the center of the lower surface of the frame 1. A position encoder 7 is fixedly connected to the right side of the frame 1. The left side of the position encoder 7 is connected to the right end of the lead screw 308 via a flexible coupling. A position encoder 8 is fixedly connected to the front surface of the front fixed plate 309. The rear surface of the position encoder 8 is connected to the front end of the lead screw 311 via a flexible coupling. An angle sensor 9 is fixedly connected to the right side of the vertical plate 305 and below the lathe chuck 306. The control box 6 integrates a complete set of synchronous control components, providing stable support for the power regulation, signal reception, and linkage calculation of the overall feed mechanism, and realizing the coordinated control of each servo mechanism. The left side of position encoder 7 is stably connected to the right end of lead screw 308 via a flexible coupling, and position encoder 8 is also connected to the front end of lead screw 311 via a flexible coupling. It can accurately collect the number of rotations and rotation angles of lead screw 308 and lead screw 311 in real time, and provide real-time feedback of linear feed stroke data, effectively compensating for positioning errors caused by transmission backlash. Angle sensor 9 can detect the rotation angle and posture position of the workpiece after clamping in real time, and transmit the collected angle signal to the control components inside the control box 6 in real time. Together with the two sets of position encoders, it forms an all-round signal acquisition system, which facilitates the synchronous control device to adjust the operating status of each servo motor in real time, accurately match the feed displacement and workpiece rotation angle, ensure the synchronous coordination of multi-axis motion during turning, improve the positioning accuracy and machining consistency of the equipment, and the flexible coupling can also buffer rotational vibration, avoid rigid tension damage to the detection components, and extend the service life of the detection elements.

[0023] like Figure 1 As shown, a control center 10 is fixedly connected to the left side of the front surface of the frame 1; The control center 10 is electrically connected to the control box 6, position encoder 1 7, position encoder 2 8, and angle sensor 9. It can centrally receive various position signals, angle detection signals, and motion feedback signals. Operators can uniformly set feed parameters, speed values, and angle adjustment ranges through the control center 10, and control the operating status of servo motor 1 307, servo motor 2 310, and servo motor 3 316 in real time. It can precisely coordinate the linkage rhythm of each feed structure and rotary adjustment structure, realize the synchronous cooperation and orderly operation of each mechanism, facilitate the real-time monitoring of equipment operation status by staff, simplify the operation and adjustment process, improve the overall ease of operation and automation control of the device, and further ensure the accuracy and processing stability of servo feed operations.

[0024] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A servo feed mechanism for a lathe and its synchronous control device, comprising a frame (1), characterized in that: The upper surface of the frame (1) is provided with a groove (2), and a feeding device (3) is provided inside the groove (2). The feeding device (3) includes a moving plate (301). Linear guide rails (302) are symmetrically fixedly connected to the lower inner surface of the groove (2). Slider blocks (303) are slidably connected to the outer walls of the two linear guide rails (302). The upper surfaces of the two sliders (303) are fixedly connected to the lower surface of the moving plate (301). A rotating platform (304) is provided above the moving plate (301). The upper surface of the rotating platform (304) is fixedly connected to the lower surface of the moving plate (301). A vertical plate (305) is connected, and a lathe chuck (306) is fixedly connected to the right side of the vertical plate (305). A servo motor (307) is fixedly connected to the left side of the frame (1). A lead screw (308) is fixedly connected to the right end of the output shaft of the servo motor (307). The right end of the lead screw (308) is rotatably connected to the inside right side of the groove (2) through a rotating shaft. The outer side wall of the lead screw (308) is threadedly connected to the inside of the moving plate (301).

2. The servo feed mechanism for a lathe and its synchronous control device according to claim 1, characterized in that: The lower surface of the frame (1) is symmetrically fixed with L-shaped mounting plates (4), and the upper surfaces of the two L-shaped mounting plates (4) are symmetrically provided with through-type fixing grooves (5).

3. The servo feed mechanism for a lathe and its synchronous control device according to claim 1, characterized in that: A fixed plate (309) is symmetrically fixedly connected to the upper surface of the first movable plate (301). A servo motor (310) is fixedly connected to the rear surface of the fixed plate (309). A lead screw (311) is fixedly connected to the front end of the output shaft of the second servo motor (310). The front end of the lead screw (311) is rotatably connected to the rear surface of the fixed plate (309) in front via a rotating shaft. A second movable plate (312) is provided below the rotating platform (304). A linear guide rail (313) is fixedly connected to the upper surface of the first movable plate (301). A slider (314) is slidably connected to the outer wall of the linear guide rail (313). The upper surface of the slider (314) is fixedly connected to the lower surface of the second movable plate (312). The outer wall of the lead screw (311) is threadedly connected to the inside of the second movable plate (312).

4. A servo feed mechanism for a lathe and its synchronous control device according to claim 3, characterized in that: The upper surface of the second movable plate (312) is provided with a mounting groove (315), and the lower surface of the mounting groove (315) is fixedly connected to a third servo motor (316). The top end of the output shaft of the third servo motor (316) is fixedly connected to the center of the lower surface of the rotating platform (304).

5. A servo feed mechanism for a lathe and its synchronous control device according to claim 3, characterized in that: Scraper 1 (317) is fixedly connected to the left and right sides of both slider 1 (303). Scraper 1 (318) is provided on the outer side wall of both slider 1 (317). The cross-sectional profile of multiple slots 1 (318) is adapted to the cross-sectional profile of the two linear guide rails 1 (302). Inclined grooves (319) are symmetrically provided on the upper surface of the moving plate 1 (301). Scraper 2 (320) is fixedly connected to the front and rear surfaces of slider 2 (314). Through slots 2 (321) are provided on the opposite sides of the two scraper 2 (320). The cross-sectional profile of the two slots 2 (321) is adapted to the cross-sectional profile of the linear guide rail 2 (313). The lower side of the outer side wall of the two scraper 2 (320) is in contact with the outer side wall of the two inclined grooves (319).

6. A servo feed mechanism for a lathe and its synchronous control device according to claim 1, characterized in that: The lower surface of the frame (1) is symmetrically fixed with fixed frames (322), and a collection box (323) is provided inside each of the two fixed frames (322). The upper surface inside the two fixed frames (322) and the lower surface inside the groove (2) are both provided with an inclined connecting groove (324).

7. A servo feed mechanism for a lathe and its synchronous control device according to claim 3, characterized in that: A control box (6) is fixedly connected to the center of the lower surface of the frame (1). A position encoder (7) is fixedly connected to the right side of the frame (1). The left side of the position encoder (7) is connected to the right end of the lead screw (308) via an elastic coupling. A position encoder (8) is fixedly connected to the front surface of the front fixed plate (309). The rear surface of the position encoder (8) is connected to the front end of the lead screw (311) via an elastic coupling. An angle sensor (9) is fixedly connected to the right side of the vertical plate (305) and below the lathe chuck (306).

8. A servo feed mechanism for a lathe and its synchronous control device according to claim 5, characterized in that: The upper surfaces of the two scraper blades 1 (317) and the two scraper blades 2 (320) are all fixedly connected to a connecting plate (325). The upper surfaces of the multiple connecting plates (325) are all fixedly connected to a semi-circular plate 1 (326). The inner sidewalls of the multiple semi-circular plates 1 (326) are all provided with a cleaning brush plate 1 (327). The upper surface of the multiple semi-circular plates 1 (326) is provided with a semi-circular plate 2 (328). The inner sidewalls of the multiple semi-circular plates 2 (328) are all provided with a cleaning brush plate 2 (329). The upper surface of the multiple semi-circular plates 2 (328) is provided with a cleaning brush plate 2 (329). 28) is provided with locking bolts (330) on its upper surface. The bottom ends of the multiple locking bolts (330) extend to the bottom of the multiple semicircular plates (326). The outer walls of the multiple locking bolts (330) and the lower surfaces of the multiple semicircular plates (326) are threaded with locking nuts (331). The inner walls of the multiple cleaning brush plates (327) and the inner walls of the multiple cleaning brush plates (329) are in contact with the outer walls of the lead screw (308) and the lead screw (311), respectively.

9. A servo feed mechanism for a lathe and its synchronous control device according to claim 1, characterized in that: The control center (10) is fixedly connected to the left side of the front surface of the frame (1).

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