Tail jacking numerical control lathe
By introducing adjusting screws, sliding blocks, and inclined plane structures into the tailstock CNC lathe, combined with tightening bolts and positioning grooves, the problems of tool clamping instability and vibration were solved, achieving higher machining accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN CITY SHUNDE DISTRICT LONGHE MECHANICAL IND CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-21
AI Technical Summary
The tool clamping stability of traditional tail-top CNC lathe turrets is insufficient, and the installation and positioning effect is poor, which leads to vibration problems during cutting and affects the machining accuracy and quality of complex parts.
By employing an adjusting screw, sliding block, and inclined plane structure, combined with a tightening bolt and positioning groove, stable clamping and limiting of the cutting tool are achieved. The cooperation between the inclined plane sliding adjustment and the tightening bolt improves the installation stability and safety of the cutting tool.
It effectively prevents tool loosening, improves tool installation stability and safety, ensures the stability and accuracy of the machining process, and prevents dimensional differences and surface vibrations in complex parts.
Smart Images

Figure CN224143535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC lathe technology, specifically a tail-top CNC lathe. Background Technology
[0002] A tailstock CNC lathe is a machine tool that combines a CNC lathe with a programmable tailstock (or tailrest). Its core function lies in precisely controlling the movement and positioning of the tailstock through a CNC system to adapt to different machining needs. A CNC lathe is an automated machine tool equipped with a program control system, which can perform high-precision machining of parts according to a preset program. The tailstock (tailrest) is an important component of the CNC lathe, mainly used to support and position the workpiece. Especially when machining long shaft parts, the tailstock holds the tail of the workpiece tightly with a center to prevent it from vibrating or deforming due to cutting forces, thereby ensuring the stability and accuracy of machining. However, traditional tailstock CNC lathes often suffer from insufficient tool clamping stability, poor positioning effect during installation, and vibration problems during cutting, leading to dimensional differences, surface rippling, and even tool fall-off problems when machining complex parts. Utility Model Content
[0003] The purpose of this utility model is to provide a tail-top CNC lathe to solve the problems mentioned in the background art, such as insufficient tool clamping stability, poor positioning effect during installation, and easy vibration during cutting, which leads to dimensional differences, surface rippling, and even tool fall-off during the machining of complex parts.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a tail-top CNC lathe, comprising:
[0005] frame;
[0006] X-axis linear module, the X-axis linear module is set on the top of the frame;
[0007] A Y-axis linear module is mounted on the sliding table of the X-axis linear module, and a Z-axis linear module is mounted on the sliding table of the Y-axis linear module.
[0008] The turret servo motor is mounted on the moving slide of the Z-axis linear module. The output end of the turret servo motor is equipped with a turret, and the turret is equipped with multiple internal fixed boxes.
[0009] The top pressure block is slidably disposed inside the inner fixed box;
[0010] A sliding top block is slidably disposed inside the inner fixed box, and a first inclined surface is formed on one side of the sliding top block;
[0011] The second inclined surface is located on one side of the top pressure block, and the second inclined surface is slidably connected to the first inclined surface.
[0012] As a preferred embodiment of this utility model: a side baffle is bolted to one side of the inner fixed box, an adjusting screw is threadedly connected to the inside of the sliding top block, the adjusting screw is rotatably connected to the side baffle, a fixing cap is rotatably provided on one side of the side baffle, one end of the adjusting screw is fixedly connected to the fixing cap, and a clamping seat is provided on one side of the top pressing block.
[0013] As a preferred embodiment of this utility model: a limiting slider is symmetrically fixed to one side of the first inclined surface, the limiting slider is slidably connected to the top pressure block, a limiting slide rod is slidably connected inside the limiting slider, and the limiting slide rod is fixedly connected to the top pressure block.
[0014] As a preferred embodiment of this utility model: a linear module is provided on the top of the frame, a support is installed on the moving slide of the linear module, a pin seat is rotatably provided on one side of the support, and a limit frame is installed on one side of the inner fixed box by bolts.
[0015] As a preferred embodiment of this utility model: a cutting tool is installed on one side of the turret, a positioning plate is provided on one side of the cutting tool, and a plurality of positioning grooves that cooperate with the positioning plate are opened inside the turret.
[0016] As a preferred embodiment of this utility model: a drive motor is provided on the top of the frame, a three-jaw chuck is provided at one end of the drive motor, and a tightening bolt is symmetrically threaded inside the side baffle, with one end of the tightening bolt cooperating with the sliding top block.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting an adjusting screw, a sliding top block, a first inclined plane, and a second inclined plane, this utility model realizes the sliding adjustment of the outer sliding top block within the inner fixed box when the adjusting screw rotates. The sliding top block is pushed by the first inclined plane against the second inclined plane on the side of the top pressure block. The top pressure block moves to clamp the tool placed inside the turret. The tightening bolt is adjusted by the thread on the side baffle. One end of the tightening bolt tightens the sliding top block, preventing the sliding top block and the top pressure block from moving and avoiding tool loosening, thus improving safety. By setting a positioning plate and a positioning groove, the tool is positioned by the positioning plate on one side of the tool and the positioning groove when it is installed in the turret, limiting the installation position of the tool and further improving the installation stability of the tool. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a right view of the present invention;
[0020] Figure 3 This is a schematic diagram of the turret structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the side baffle structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the sliding top block structure of this utility model.
[0023] In the diagram: 1. Frame; 2. Support base; 3. Ejector pin seat; 4. Drive motor; 5. Three-jaw chuck; 6. X-axis linear module; 7. Y-axis linear module; 8. Z-axis linear module; 9. Turret; 10. Tool; 11. Positioning plate; 12. Positioning groove; 13. Inner fixing box; 14. Side baffle; 15. Sliding top block; 16. Adjusting screw; 17. Fixing cap; 18. Tightening bolt; 19. Top pressure block; 20. First inclined plane; 21. Second inclined plane; 22. Limit slider; 23. Limit slider rod; 24. Limit frame; 25. Turret servo motor; 26. First linear module. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a tail-top CNC lathe, comprising: a frame 1; an X-axis linear module 6 disposed on the top of the frame 1; a Y-axis linear module 7 disposed on the moving slide of the X-axis linear module 6, and a Z-axis linear module 8 mounted on the moving slide of the Y-axis linear module 7; a turret servo motor 25 mounted on the moving slide of the Z-axis linear module 8, and a turret 9 mounted on the output end of the turret servo motor 25, with multiple inner fixed boxes 13 fixedly connected inside the turret 9; a top pressure block 19 slidably disposed inside the inner fixed box 13; a sliding top block 15 slidably disposed inside the inner fixed box 13, with a first inclined surface 20 opened on one side of the sliding top block 15; a second inclined surface 21 opened on one side of the top pressure block 19, and the second inclined surface 21 slidably connected to the first inclined surface 20.
[0026] It should be noted that, in this embodiment, when installing the tool 10, the positioning plate 11 on one side of the tool 10 is aligned with the positioning groove 12, and the tool 10 is installed in the turret 9. By rotating the fixing cap 17, the adjusting screw 16 is rotated. When the adjusting screw 16 rotates, the outer sliding top block 15 slides and adjusts within the inner fixed box 13. When the sliding top block 15 moves, it pushes against the second inclined surface 21 on one side of the pressure block 19 through the first inclined surface 20 on one side. The first inclined surface 20 slides against the second inclined surface 21, and the first inclined surface 20 pushes against the second inclined surface 21, causing the pressure block 19 to move within the inner fixed box 13. The pressure block 19 moves outward and presses and fixes the tool 10 through the clamping seat. The limiting slider 22 is fixed on one side of the first inclined surface 20. The limiting slider 22 slides within the pressure block 19 and is limited by the limiting slider rod 2. The outer limit sliding of 3 stabilizes and adjusts the top pressure block 19. Then, by rotating the top tightening bolt 18, one end of the top tightening bolt 18 tightens the position of the sliding top block 15, thereby improving the stability of the top pressure block 19 clamping the tool 10 and preventing the tool 10 from loosening. There is an ejector seat 3 at the tail. When turning long shaft parts, an ejector seat 3 is needed to fix the workpiece to prevent the two ends from swinging due to distance and affecting the accuracy. Long shaft parts are clamped and fixed by a three-jaw chuck 5. The other end of the long shaft part is tightened by the ejector seat 3. The output end of the drive motor 4 drives the three-jaw chuck 5 and the part to rotate. The ejector seat 3 rotates on one side of the support base 2. The positions of the turret servo motor 25 and the turret 9 are adjusted by the X-axis linear module 6, Y-axis linear module 7, and Z-axis linear module 8. The tool 10 is used to process the part.
[0027] In one embodiment, such as Figures 1 to 5 As shown, a side baffle 14 is bolted to one side of the inner fixed box 13. An adjusting screw 16 is threadedly connected to the inside of the sliding top block 15. The adjusting screw 16 is rotatably connected to the side baffle 14. A fixing cap 17 is rotatably provided on one side of the side baffle 14. One end of the adjusting screw 16 is fixedly connected to the fixing cap 17. A clamping seat is provided on one side of the top pressing block 19.
[0028] It should be noted that in this embodiment, the adjusting screw 16 is rotated by the fixing cap 17, and when the adjusting screw 16 rotates, it drives the outer sliding top block 15 to slide and adjust within the inner fixing box 13.
[0029] In one embodiment, such as Figure 5 As shown, a limiting slider 22 is symmetrically fixed to one side of the first inclined plane 20. The limiting slider 22 is slidably connected to the top pressure block 19. A limiting slide rod 23 is slidably connected inside the limiting slider 22. The limiting slide rod 23 is fixedly connected to the top pressure block 19.
[0030] It should be noted that in this embodiment, when the top pressure block 19 is slidably adjusted, the limiting slider 22 slides inside the top pressure block 19 and the limiting slider 22 slides on the outside of the limiting slider 23, thereby improving the stability of the adjustment. A limiting frame 24 is provided, which is installed on one side of the inner fixed box 13 by bolts, and the position of the tool 10 is limited by the limiting frame 24.
[0031] In one embodiment, such as Figures 1 to 5 As shown, a linear module 26 is provided on the top of the frame 1. A support base 2 is installed on the moving slide of the linear module 26. A pin seat 3 is rotatably provided on one side of the support base 2. A limit frame 24 is installed on one side of the inner fixed box 13 by bolts.
[0032] It should be noted that in this embodiment, the moving slide of the first linear module 26 drives the support base 2 and the ejector pin 3 to move, and the ejector pin 3 clamps and fixes one end of the long shaft part to ensure the stability of the processing.
[0033] In one embodiment, such as Figures 1 to 3 As shown, a tool 10 is installed on one side of the turret 9, and a positioning plate 11 is provided on one side of the tool 10. Multiple positioning slots 12 that cooperate with the positioning plate 11 are opened inside the turret 9.
[0034] It should be noted that in this embodiment, the positioning plate 11 on one side of the tool 10 cooperates with the positioning groove 12 to limit the installation of the tool 10 within the turret 9, thereby improving the stability of the installation.
[0035] In one embodiment, such as Figures 1 to 5 As shown, a drive motor 4 is installed on the top of the frame 1, and a three-jaw chuck 5 is installed at one end of the drive motor 4. The side baffle 14 is symmetrically threaded with tightening bolts 18, and one end of the tightening bolts 18 is engaged with the sliding top block 15.
[0036] It should be noted that in this embodiment, the position of the sliding top block 15 is tightened by the tightening bolt 18, which improves the stability of clamping the tool 10. The tightening bolt 18 adopts a spring washer anti-loosening structure. The spring washer is the core component in the anti-loosening structure of the tightening bolt 18. It compensates for the micro-movement clearance of the thread pair through elastic deformation, improves the connection reliability, and compensates for vibration through elastic pressure. It is suitable for ordinary mechanical parts.
[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tail center numerically controlled lathe characterized by, include: Rack (1); X-axis linear module (6), which is located on the top of the frame (1); Y-axis linear module (7) is mounted on the sliding table of X-axis linear module (6), and Z-axis linear module (8) is mounted on the sliding table of Y-axis linear module (7). A turret servo motor (25) is mounted on the moving slide of the Z-axis linear module (8). A turret (9) is mounted on the output end of the turret servo motor (25). Multiple internal fixing boxes (13) are provided inside the turret (9). Top pressure block (19), which is slidably disposed inside the inner fixed box (13); A sliding top block (15) is slidably disposed inside the inner fixed box (13), and a first inclined surface (20) is provided on one side of the sliding top block (15); The second inclined surface (21) is located on one side of the top pressure block (19), and the second inclined surface (21) is slidably connected to the first inclined surface (20).
2. A tail center numerically controlled lathe according to claim 1, characterized in that: A side baffle (14) is bolted to one side of the inner fixed box (13). An adjusting screw (16) is threadedly connected to the inside of the sliding top block (15). The adjusting screw (16) is rotatably connected to the side baffle (14). A fixing cap (17) is rotatably provided on one side of the side baffle (14). One end of the adjusting screw (16) is fixedly connected to the fixing cap (17). A clamping seat is provided on one side of the top pressing block (19).
3. The tail center numerically controlled lathe according to claim 1, characterized in that: A limiting slider (22) is symmetrically fixed to one side of the first inclined plane (20). The limiting slider (22) is slidably connected to the top pressure block (19). A limiting slide rod (23) is slidably connected inside the limiting slider (22). The limiting slide rod (23) is fixedly connected to the top pressure block (19).
4. The tail center numerically controlled lathe according to claim 1, characterized in that: A linear module (26) is provided on the top of the frame (1). A support base (2) is installed on the moving slide of the linear module (26). A pin seat (3) is rotatably provided on one side of the support base (2). A limit frame (24) is installed on one side of the inner fixed box (13) by bolts.
5. A tail center numerically controlled lathe according to claim 1, characterized in that: A cutting tool (10) is installed on one side of the turret (9), and a positioning plate (11) is provided on one side of the cutting tool (10). The turret (9) has multiple positioning slots (12) that cooperate with the positioning plate (11).
6. A tail center numerically controlled lathe according to claim 2, characterized in that: The top of the frame (1) is provided with a drive motor (4), one end of the drive motor (4) is provided with a three-jaw chuck (5), and the inside of the side baffle (14) is symmetrically threaded with a tightening bolt (18), one end of the tightening bolt (18) is engaged with the sliding top block (15).