A rapid feed mechanism for a numerical control machine tool

Abstract

The utility model discloses a quick feeding mechanism for numerical control machine tool, including the fuselage, the top of fuselage is equipped with the body connection base, the body connection base is parallelly arranged Z axle linear guide rail and Z axle ball screw on length direction, Z axle linear guide rail sliding connection tool rest platform, and tool rest platform and Z axle ball screw adaptation transmission, Z axle ball screw one end is connected Z axle servo driver, tool rest platform upper surface is equipped with X axle linear guide rail and X axle ball screw, X axle linear guide rail sliding connection adapter seat, adapter seat and X axle ball screw adaptation transmission, X axle ball screw one end is connected X axle servo driver, the fuselage periphery cover is equipped with machine tool outer big cover, the utility model discloses through adopting "double axle guide rail + ball screw " transmission, combines servo drive, realizes X, Z to high accuracy quick feeding, promotes processing efficiency and equipment life, satisfies the demand of precision machining.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically a rapid feed mechanism for CNC machine tools. Background Technology

[0002] In the field of medical device manufacturing, the high precision, high cleanliness, and complex structures of products place stringent demands on the machining efficiency and feed accuracy of CNC machine tools. For precision components such as orthopedic implants and medical catheter connectors, the performance of the feed mechanism of CNC machine tools has become a key factor restricting the industry's development due to the stringent requirements for machining accuracy, surface quality, and production efficiency. Traditional CNC machine tools mostly use a feed structure combining ordinary lead screws and guideways, which has low transmission efficiency and makes it difficult to achieve high-speed feed. This results in long processing cycles for single products, failing to meet the ever-increasing demand for mass production of medical devices. Furthermore, ordinary lead screws are prone to vibration and axial movement at high speeds, making it difficult to achieve the micron-level standards required for medical devices, leading to dimensional deviations and unstable product quality. Utility Model Content

[0003] The purpose of this invention is to provide a rapid feed mechanism for CNC machine tools to solve the problems of low transmission efficiency, unstable accuracy, insufficient protection performance, and weak structural compatibility of traditional feed mechanisms mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid feed mechanism for a CNC machine tool, comprising a machine body, a bed connecting base at the top of the machine body, a Z-axis linear guide and a Z-axis ball screw arranged parallel along the length direction on the bed connecting base, the Z-axis linear guide slidably connected to a tool post, and the tool post and the Z-axis ball screw being adapted for transmission, one end of the Z-axis ball screw being connected to a Z-axis servo driver, an X-axis linear guide and an X-axis ball screw on the upper surface of the tool post, the X-axis linear guide slidably connected to an adapter seat, and so on. The adapter is adapted to the X-axis ball screw for transmission. One end of the X-axis ball screw is connected to the X-axis servo driver. The machine body is covered by an outer cover. The inner side of the outer cover encloses the inner protective cover of the machine tool, corresponding to the machining area. A spindle servo motor is mounted on one side of the machine body. The ball screw end bearings on the machine body are correspondingly installed at the ends of the Z-axis ball screw and the X-axis ball screw. Fixed clamps one, two, and three are distributed on the machine body. The tool post has a turret servo motor and an end face tool holder mounting position opened at the corresponding position.

[0005] As a preferred technical solution of this utility model, the Z-axis linear guide and the Z-axis ball screw are arranged parallel to each other along the length direction of the bed connecting base, and the Z-axis linear guide and the Z-axis ball screw provide guidance and drive for the Z-axis movement of the tool post.

[0006] As a preferred technical solution of this utility model, the X-axis linear guide and the X-axis ball screw are arranged parallel to each other on the surface of the tool holder, and the X-axis linear guide and the X-axis ball screw together provide guidance and drive for the X-axis movement of the adapter.

[0007] As a preferred embodiment of this utility model, the lead screw end bearing is correspondingly sleeved on the non-driving ends of the Z-axis ball screw and the X-axis ball screw.

[0008] As a preferred embodiment of this utility model, the outer cover of the machine tool covers the machine body and upper components, and the inner protective cover of the machine tool is nested inside the outer cover of the machine tool.

[0009] As a preferred technical solution of this utility model, the fixing clamp one, fixing clamp two, and fixing clamp three are respectively assembled at the front end, middle end, and rear end of the machine body and are adapted to fix different functional components.

[0010] As a preferred embodiment of this utility model, the turret servo motor is vertically mounted on one side of the tool holder, and the end face tool holder mounting position is opened on the front end face of the tool holder and is adapted for tool assembly installation.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By cooperating with the Z-axis and X-axis linear guides and ball screws, combined with servo drivers and motor drives, high-precision and rapid feed motion of the tool post and adapter in two directions is achieved, which significantly improves the machining efficiency and accuracy of CNC machine tools and can meet the high-efficiency machining needs of complex parts.

[0013] 2. By integrating the transmission system, protection system, power system and auxiliary fixing structure into one unit, the double-layer protective cover isolates processing risks, the lead screw end bearing ensures transmission stability, and the fixed clamp can flexibly adapt to auxiliary equipment, ensuring the stable and reliable operation of the rapid feed mechanism, reducing equipment failure rate and extending service life. Attached Figure Description

[0014] Figure 1 This is a top view of the rapid feed mechanism of this utility model.

[0015] Figure 2 This is a schematic diagram of the isometric structure of the rapid feed mechanism of this utility model (view 1);

[0016] Figure 3 This is a front view structural diagram of the rapid feed mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the isometric structure of the rapid feed mechanism of this utility model (view 2).

[0018] In the diagram: 1. Machine body; 2. Z-axis linear guide; 3. Machine tool inner protective cover; 4. X-axis linear guide; 5. Lead screw end bearing; 6. X-axis servo driver; 7. Adapter; 8. X-axis ball screw; 9. Turret servo motor; 10. Fixed clamp one; 11. Bed connecting base; 12. Z-axis servo driver; 13. Spindle servo motor; 14. Z-axis ball screw; 15. Fixed clamp two; 16. Fixed clamp three; 17. Machine tool outer cover; 18. End face tool holder mounting position; 19. Tool post. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] Please see Figure 1-4This utility model provides a rapid feed mechanism for a CNC machine tool, including a machine body 1. A bed connecting base 11 is provided on the top of the machine body 1. A Z-axis linear guide 2 and a Z-axis ball screw 14 are arranged parallel along the length direction on the bed connecting base 11. The Z-axis linear guide 2 is slidably connected to a tool post 19, and the tool post 19 and the Z-axis ball screw 14 are adapted for transmission. One end of the Z-axis ball screw 14 is connected to a Z-axis servo driver 12. An X-axis linear guide 4 and an X-axis ball screw 8 are provided on the upper surface of the tool post 19. The X-axis linear guide 4 is slidably connected to an adapter 7, and the adapter 7 and the X-axis ball screw 8 are adapted for transmission. One end of the X-axis ball screw 8 is connected to an X-axis servo driver 12. The machine body 1 is surrounded by a machine tool outer cover 17, and the inner side of the outer cover 17 encloses the inner protective cover 3 corresponding to the machining area. A spindle servo motor 13 is mounted on one side of the machine body 1. The lead screw end bearing 5 on the machine body 1 is installed at the end of the Z-axis ball screw 14 and the X-axis ball screw 8, respectively. Fixed clamps 10, 15, and 16 are distributed on the machine body 1. A tool turret servo motor 9 and an end face tool holder mounting position 18 are installed on the tool turret 19. The machine body 1 is the basic support, and the top bed connecting base 11 carries the Z-axis linear guide 2 and the Z-axis ball screw 14, which are arranged in parallel. The Z-axis servo driver 12 drives the Z-axis ball screw 14 to rotate. Because the tool turret 19 is adapted to the Z-axis ball screw 14 for transmission and is slidably connected to the Z-axis linear guide 2, the rotation is converted into linear motion of the tool turret 19 along the Z-direction. Similarly, the X-axis linear guide 4 on the tool post 19 and the X-axis ball screw 8 are driven by the X-axis servo driver 6 to rotate the X-axis ball screw 8, causing the adapter 7 to move linearly along the X direction. The outer machine tool cover 17 and the inner machine tool protective cover 3 of the machine body 1 enclose the machining area. The spindle servo motor 13 provides machining power. The ball screw end bearing 5 supports the Z and X axis ball screw ends to ensure transmission stability. The fixed clamps 10, 15, and 16 respectively fix auxiliary components. The tool turret servo motor 9 on the tool post 19 and the end face tool holder mounting position 18 are adapted to the tool assembly to work together to achieve rapid feed machining.

[0021] The Z-axis linear guide 2 and the Z-axis ball screw 14 are arranged parallel to each other along the length of the bed connecting base 11. The Z-axis linear guide 2 and the Z-axis ball screw 14 provide guidance and drive for the Z-axis movement of the tool post 19. When the Z-axis ball screw 14 rotates, the tool post 19 is guided and constrained by the Z-axis linear guide 2 and moves linearly along the Z-axis. The two work together to provide guidance and drive for the Z-axis movement of the tool post 19, ensuring accurate movement direction and stable transmission, which is different from the limitations of a single transmission method.

[0022] The X-axis linear guide 4 and the X-axis ball screw 8 are arranged parallel to each other on the surface of the tool holder 19. The X-axis linear guide 4 and the X-axis ball screw 8 together provide guidance and drive for the X-axis movement of the adapter 7. When the X-axis ball screw 8 rotates, the adapter 7 is guided by the X-axis linear guide 4 and moves linearly in the X-axis direction. The two work together to provide guidance and drive for the X-axis movement of the adapter 7, realizing precise X-axis feed.

[0023] The lead screw end bearing 5 is sleeved on the non-driving ends of the Z-axis ball screw 14 and the X-axis ball screw 8. When the ball screw rotates, the lead screw end bearing 5 bears the radial load and axial movement, maintains the coaxiality and straightness of the lead screw, and ensures stable transmission without wobble.

[0024] The outer cover 17 of the machine tool covers the machine body 1 and the upper components, and the inner protective cover 3 of the machine tool is nested inside the outer cover 17. The outer cover 17 covers the machine body 1 and the upper components, forming an outer barrier to block chips, coolant splashes and noise diffusion. The inner protective cover 3 is nested inside the outer cover, further enclosing the core processing area. The double isolation ensures the distinction between the processing environment and the external space, while also allowing for a window to observe the hidden processing functions.

[0025] Fixed clamp 10, fixed clamp 2 15, and fixed clamp 3 16 are respectively assembled at the front, middle, and rear ends of the machine body 1 and are adapted to fix different functional components. Fixed clamp 10, 2 15, and 3 16 are installed at the front, middle, and rear ends of the machine body 1 according to functional requirements, and are implicitly connected by bolts, slots, etc. They are adapted to fix different auxiliary components such as material bins, detection sensors, and chip removal components, and provide installation interfaces for peripheral equipment of the rapid feeding system.

[0026] The turret servo motor 9 is vertically mounted on one side of the tool holder 19, and the end face tool holder mounting position 18 is opened on the front end face of the tool holder 19 and adapted to the tool assembly mounting; the turret servo motor 9 is vertically mounted on one side of the tool holder 19 and drives the related movements of the tool assembly; the end face tool holder mounting position 18 is opened on the front end face of the tool holder 19 and is used to mount the tool assembly. The two work together to achieve rapid tool switching and precise positioning, adapting to the tool requirements of rapid feed machining.

[0027] In this invention, the Z-axis linear guide 2 and Z-axis ball screw 14 are supported by the bed connecting base 11. The Z-axis servo driver 12 drives the screw to rotate, and combined with the guidance of the linear guide, the Z-axis rapid feed of the tool post 19 is realized. The X-axis linear guide 4 and X-axis ball screw 8 on the tool post 19, driven by the X-axis servo driver 6, drive the adapter 7 to complete the X-axis rapid movement. The screw end bearing 5 is installed at the end of the ball screw, supporting rotation and ensuring transmission stability. The outer cover 17 and the inner protective cover 3 of the machine tool form a double layer of protection, isolating the machining area. The spindle servo motor 13 provides power for machining. The fixed clamps 10, 15, and 16 distributed on the machine body 1 are adapted to fix auxiliary components. The turret servo motor 9 on the tool post 19 and the end face tool holder mounting position 18 realize tool switching and installation. The coordinated operation of all components enables high-precision and rapid feed motion on the X and Z axes, providing a stable and reliable transmission foundation for efficient CNC machine tool processing, while ensuring the safety of the processing environment and the overall operational stability of the equipment.

[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A rapid feed mechanism for a CNC machine tool, comprising a machine body (1), characterized in that: The machine body (1) has a bed connecting base (11) on its top. A Z-axis linear guide (2) and a Z-axis ball screw (14) are arranged parallel along the length of the bed connecting base (11). The Z-axis linear guide (2) is slidably connected to a tool post (19), and the tool post (19) and the Z-axis ball screw (14) are adapted for transmission. One end of the Z-axis ball screw (14) is connected to a Z-axis servo driver (12). An X-axis linear guide (4) and an X-axis ball screw (8) are provided on the upper surface of the tool post (19). The X-axis linear guide (4) is slidably connected to an adapter (7), and the adapter (7) and the X-axis ball screw (8) are adapted for transmission. One end of the rod (8) is connected to the X-axis servo driver (6). The outer casing (1) of the machine tool is covered by a machine tool outer cover (17). The inner side of the machine tool outer cover (17) is surrounded by a machine tool inner protective cover (3) corresponding to the machining area. The spindle servo motor (13) is mounted on one side of the machine tool. The lead screw end bearing (5) on the machine tool (1) is installed at the ends of the Z-axis ball screw (14) and the X-axis ball screw (8). Fixed clamping seat one (10), fixed clamping seat two (15) and fixed clamping seat three (16) are distributed on the machine tool (1). The tool holder table (19) has a tool turret servo motor (9) and an end face tool holder mounting position (18) opened at the appropriate position.

2. The rapid feed mechanism for a CNC machine tool according to claim 1, characterized in that: The Z-axis linear guide (2) and the Z-axis ball screw (14) are arranged parallel to each other along the length of the bed connecting base (11). The Z-axis linear guide (2) and the Z-axis ball screw (14) provide guidance and drive for the Z-axis movement of the tool post (19).

3. The rapid feed mechanism for a CNC machine tool according to claim 1, characterized in that: The X-axis linear guide (4) and the X-axis ball screw (8) are arranged parallel to each other on the surface of the tool holder (19). The X-axis linear guide (4) and the X-axis ball screw (8) together provide guidance and drive for the X-axis movement of the adapter (7).

4. A rapid feed mechanism for a CNC machine tool according to claim 1, characterized in that: The lead screw end bearing (5) is correspondingly sleeved on the non-driving end of the Z-axis ball screw (14) and the X-axis ball screw (8).

5. A rapid feed mechanism for a CNC machine tool according to claim 1, characterized in that: The outer cover (17) of the machine tool covers the machine body (1) and the upper components, and the inner protective cover (3) of the machine tool is nested inside the outer cover (17).

6. A rapid feed mechanism for a CNC machine tool according to claim 1, characterized in that: The fixed clamps one (10), two (15), and three (16) are respectively assembled at the front, middle, and rear ends of the body (1) and are adapted to fix different functional components.

7. A rapid feed mechanism for a CNC machine tool according to claim 1, characterized in that: The turret servo motor (9) is vertically mounted on one side of the tool holder (19), and the end face tool holder mounting position (18) is opened on the front end face of the tool holder (19) and is adapted to the installation of the tool assembly.

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