Rotatable servo tool magazine

Abstract

The utility model provides a rotatable servo tool magazine which comprises a machine frame, a servo motor and a cutter head, and the servo motor is installed in the machine frame through a bolt. The output end of the servo motor penetrates through the top of the rack and is connected with a cutter head; the device is characterized in that the outer side wall of the cutter head is connected with a cutter rest through a plurality of detachable mounting modules; a tray is mounted on the outer side wall of the rack through bolts, and a jacking convex block is connected to the top of the tray through bolts; when reaching the position of the jacking convex block, the appointed knife rest is lifted under the action of the jacking convex block; the servo tool magazine effectively solves the problem that adjacent tools collide with each other during tool changing in the compact design of a traditional servo tool magazine, improves the space utilization rate and the tool changing efficiency of the tool magazine, and meets the requirements of the modern manufacturing industry for efficient and high-precision machining.

Description

Rotatable servo tool magazine Technical Field

[0001] This utility model relates to the field of servo tool magazines, and more particularly to a rotatable servo tool magazine. Background Technology

[0002] In the field of modern machining, with the continuous development of the manufacturing industry and the increasing demands for machining accuracy and efficiency, the application of automated machining equipment is becoming more and more widespread. Among them, CNC machine tools, as key equipment for achieving high-precision and high-efficiency machining, have their tool storage and replacement system—the tool magazine—directly affecting the smoothness of the entire machining process and production efficiency.

[0003] Servo tool magazines, as advanced tool storage and switching devices, have gradually become an important component of modern CNC machine tools due to their advantages such as high precision, high speed, and reliability. Traditional tool magazines mostly use mechanical transmission methods, such as gears and belts, to achieve tool selection and changing. However, with the continuous changes and increasing complexity of machining needs, traditional tool magazines have gradually revealed some limitations, such as slow tool changing speed, limited positioning accuracy, and limited tool capacity. To overcome these problems, servo tool magazines have emerged. Servo tool magazines use servo motors as a power source and, through precise control algorithms and advanced transmission mechanisms, achieve fast and accurate tool selection and changing operations. Compared with traditional tool magazines, servo tool magazines have higher positioning accuracy, faster tool changing speed, and larger tool capacity, better meeting the needs of modern manufacturing for efficient and high-precision machining.

[0004] Despite significant performance improvements in servo tool magazines, traditional servo tool magazines still present some challenges in practical applications, particularly in compact designs where interference between adjacent tools during tool changes is a prominent issue. In traditional rotary tool magazines, tools are typically mounted on a rotating tool turret. When a tool change is needed, the turret rotates to move the target tool to the tool change position. However, due to the small spacing between tools, adjacent tools may collide during tool changes due to insufficient space, leading to tool change failures or tool damage. This situation is especially common in compact tool magazines with densely packed tool layouts.

[0005] Furthermore, traditional servo tool magazines typically achieve tool changing by rotating the tool turret and moving the tool linearly. This motion requires a large space during tool changing to avoid interference between tools. Therefore, to ensure smooth tool changing, it is often necessary to increase the spacing between tools, which undoubtedly increases the size of the tool magazine and reduces the tool storage density, contradicting the requirements of a compact design. Summary of the Invention

[0006] To address the problem that the spacing between tools in existing technologies is too small, and adjacent tools may collide during tool changing due to insufficient space, this utility model provides a rotatable servo tool magazine.

[0007] The rotatable servo tool magazine provided by this utility model adopts the following technical solution:

[0008] A rotatable servo tool magazine includes a frame, a servo motor, and a tool head. The servo motor is bolted to the inside of the frame. The output end of the servo motor passes through the top of the frame and is connected to the tool head. The tool head is characterized in that: a tool holder is connected to the outer wall of the tool head via several detachable mounting modules; a tray is bolted to the outer wall of the frame, and a lifting protrusion is bolted to the top of the tray; when a designated tool holder reaches the position of the lifting protrusion, it will be raised under the action of the lifting protrusion.

[0009] Furthermore, the mounting module includes a mounting frame, a base box, a lifting seat, a tool holder, and a top roller; the outer wall of the tool disc has several equally spaced mounting slots, and the mounting frame is bolted to the inside of each mounting slot; the base box is welded to the bottom of the mounting frame; the lifting seat is slidably connected to the inside of the mounting frame; several elastic elements are connected between the bottom of the lifting seat and the inner wall of the base box; one end of the top column is welded to the bottom of the lifting seat; the other end of the top column extends through the bottom of the base box to the upper side of the tray and is rotatably connected to a roller;

[0010] Furthermore, there are four elastic elements, which are evenly distributed on the outer side of the top post in a circular array; the elastic elements can be one of springs or spring columns.

[0011] Furthermore, the lifting protrusion has an upward-sloping arc on both sides and is positioned as a convex structure with a semi-circular top.

[0012] Furthermore, the center position of the lifting protrusion is on the same axis as the tool changing position; the height of the lifting protrusion is the same as the maximum upward stroke of the top column, and satisfies the tool changing stroke of the machine tool.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] This invention features a detachable mounting module on the outside of the tool turret and a lifting protrusion on the outside of the frame. When the designated tool holder reaches the position of the lifting protrusion, it is raised by the protrusion, providing vertical space for the tool and avoiding radial interference. This design allows for a denser tool layout on the rotating tool turret, increasing tool storage density. It also effectively prevents collisions between adjacent tools during tool changes, ensuring accuracy and reliability. Furthermore, the detachable mounting module makes the installation, removal, and replacement of the tool holder more convenient, improving the maintainability of the tool magazine.

[0015] This invention effectively solves the problem of adjacent tool collisions during tool changes in the compact design of traditional servo tool magazines, improving the space utilization and tool changing efficiency of the tool magazine, and is suitable for the needs of modern manufacturing for efficient and high-precision machining. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is an enlarged schematic diagram of part A in Figure 1 of this utility model.

[0018] As shown in the figure: 1-frame, 2-servo motor, 3-cutter head, 4-mounting module, 41-mounting bracket, 42-base tray box, 43-lifting seat, 44-cutter holder, 45-top column, 46-elastic element, 47-roller, 5-tray, 51-lifting protrusion. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to Figures 1-2:

[0020] This utility model discloses a rotatable servo tool magazine, as shown in Figures 1 and 2. The rotatable servo tool magazine includes a frame 1, a servo motor 2, and a tool disc 3. The servo motor 2 is bolted to the inside of the frame 1. The output end of the servo motor 2 passes through the top of the frame 1 and is connected to the tool disc 3. The tool disc 3 is characterized in that: a tool holder 44 is connected to the outer wall of the tool disc 3 via several detachable mounting modules 4; a tray 5 is bolted to the outer wall of the frame 1, and a lifting protrusion 51 is bolted to the top of the tray 5; when the designated tool holder 44 reaches the position of the lifting protrusion 51, it will be raised under the action of the lifting protrusion 51. In this embodiment, the frame 1 serves as the supporting structure for the entire tool magazine, providing a mounting base for the servo motor 2 and the tool disc 3; the servo motor 2 serves as the motor... The power source drives the tool head 3 to rotate via its output end, enabling tool switching. The tool head 44 is connected to the outside of the tool head 3 via a detachable mounting module 4, facilitating tool installation and replacement. The tray 5 on the outside of the frame 1 is used to mount the lifting protrusion 51, providing support for raising the tool head 44. After the servo motor 2 starts, its output end drives the tool head 3 to rotate around its axis, and the tool head 44 on the tool head 3 rotates together with the tool head 3. When the designated tool head 44 rotates with the tool head 3 to the position of the lifting protrusion 51, it will be raised under the action of the lifting protrusion 51. This structural design makes the various components of the tool magazine clearly defined, facilitating installation and maintenance. The servo motor 2 provides precise power control, which can accurately rotate the designated tool to the tool changing position, improving the accuracy and efficiency of tool changing.

[0021] As shown in Figures 1 and 2, the mounting module 4 includes a mounting frame 41, a base box 42, a lifting seat 43, a tool holder 44, a top column 45, and rollers 47. The outer wall of the cutter head 3 has several equally spaced mounting slots, and the mounting frame 41 is bolted into the interior of these slots. The base box 42 is welded to the bottom of the mounting frame 41. The lifting seat 43 is slidably connected inside the mounting frame 41. Several elastic elements 46 are connected between the bottom of the lifting seat 43 and the inner wall of the base box 42. One end of the top column 45 is welded to the bottom of the lifting seat 43. The other end of the top column 45 extends through the bottom of the base box 42 to the upper side of the tray 5 and is rotatably connected to the rollers 47. In this embodiment, the main function of the mounting module 4 is to connect the tool holder 44 to the cutter head 3 and provide a structural basis for raising the tool holder 44. The mounting frame 41 is fixed in the mounting slot of the cutter head 3 with bolts to ensure installation stability. The base box 42 provides support and guidance for the lifting seat 43, while also accommodating... The elastic element 46; the lifting seat 43 can slide up and down within the mounting frame 41 under the action of the elastic element 46. When the roller 47 is acted upon by the lifting protrusion 51, the lifting seat 43 will overcome the elastic force of the elastic element 46 and move upward, thereby driving the tool holder 44 to rise; when the tool disc 3 rotates, when the roller 47 contacts the lifting protrusion 51, the lifting protrusion 51 will cause the roller 47 to gradually move upward, and the top column 45 will push the lifting seat 43 upward accordingly; the lifting seat 43 slides up and down within the mounting frame 41. The upward sliding mechanism compresses the elastic element 46; the tool holder 44 is raised together with the lifting seat 43. When the roller 47 leaves the lifting protrusion 51, the elastic force of the elastic element 46 causes the lifting seat 43 and the tool holder 44 to return to their original positions; the detachable installation module 4 design facilitates the installation, disassembly and replacement of the tool holder 44, improving the maintainability of the tool magazine; the setting of the elastic element 46 provides a buffering effect for the tool holder 44 during the lifting and resetting process, reducing impact force and extending the service life of the tool magazine;

[0022] As shown in Figures 1 and 2, there are four elastic elements 46, which are evenly distributed on the outer side of the top post 45 in a circular array. The elastic elements 46 can be either springs or spring columns. In this embodiment, during the normal rotation of the tool holder 44, the elastic elements 46 are in a natural state, providing stable support for the lifting seat 43. When the roller 47 contacts the lifting protrusion 51 and moves upward, the elastic element 46 is stretched, and the elastic force gradually increases. When the roller 47 leaves the lifting protrusion 51, the elastic force of the elastic element 46 pushes the lifting seat 43 and the tool holder 44 downward, returning them to their initial positions. The four elastic elements 46 are evenly distributed on the outer side of the top post 45 in a circular array, which can ensure the stability and balance of the lifting seat 43 during the up and down movement. The springs or spring columns have good elastic properties, which can effectively reduce the impact force during the lifting and resetting process of the tool holder 44, protecting the various components of the tool magazine.

[0023] As shown in Figures 1 and 2, the lifting protrusion 51 has an upward-sloping arc on both sides, forming a semi-circular apex. In this embodiment, when the roller 47 rolls upward along the inclined slope of the lifting protrusion 51, the tool holder 44 gradually rises. When the roller 47 reaches the semi-circular apex, the tool holder 44 reaches its maximum height. When the roller 47 rolls downward along the inclined slope on the other side, the tool holder 44 gradually descends. The arc-shaped inclined slope and semi-circular apex design make the raising and lowering process of the tool holder 44 smoother, reducing vibration and noise. Simultaneously, this structure ensures that the tool holder 44 is accurately raised to the appropriate height at the tool changing position.

[0024] As shown in Figures 1 and 2, the center position of the lifting protrusion 51 is on the same axis as the tool changing position; the height of the lifting protrusion 51 is the same as the maximum upward stroke of the top column 45, and meets the tool changing stroke of the machine tool; in this embodiment, when the designated tool holder 44 is about to rotate to the tool changing position with the tool disc 3, the roller 47 just contacts the lifting protrusion 51, and the tool holder 44 is raised to its maximum height under the action of the lifting protrusion 51, at which time the machine tool can perform the tool changing operation; after the tool changing is completed, the tool disc 3 continues to rotate, the roller 47 leaves the lifting protrusion 51, and the tool holder 44 returns to its original position; the precise position and height design makes the tool magazine more accurate and reliable during the tool changing process; the accurate raising of the tool holder 44 at the tool changing position can effectively avoid radial interference between adjacent tools, improving the safety and stability of the tool magazine; at the same time, it meets the tool changing stroke requirements of the machine tool, ensuring the smooth operation of the tool changing operation.

[0025] The tool changing process in this embodiment of the utility model is as follows:

[0026] The machine tool issues a tool change command, the Z-axis lifts the tool, and the spindle is positioned to the tool change position; the servo motor 2 starts, driving the tool disc 3 to rotate, so that the mounting module 4 corresponding to the designated tool rotates to the position opposite to the spindle;

[0027] When the roller 47 in the mounting module 4 contacts the lifting protrusion 51 on the outer tray 5 of the frame 1, the roller 47 begins to roll upward along the slope due to the upward incline of the two sides of the lifting protrusion 51. The upward movement of the roller 47 causes the top column 45 and the lifting seat 43 to slide upward in the mounting frame 41, while stretching the elastic element 46. As the lifting seat 43 rises, the tool holder 44 also rises, providing vertical space buffer for the tool and avoiding collision with adjacent tools.

[0028] Once the tool holder 44 is raised to the appropriate position, the machine tool spindle releases the current tool and prepares to receive the new tool. The machine tool's tool changing mechanism removes the old tool from the spindle and picks up the designated tool from the tool holder 44 onto the spindle. The spindle clamps the new tool, completing the tool changing action.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotatable servo tool magazine, comprising a frame (1), a servo motor (2), and a tool head (3), wherein the servo motor (2) is bolted to the inside of the frame (1); the output end of the servo motor (2) passes through the top of the frame (1) and is connected to the tool head (3); characterized in that: The outer wall of the cutter head (3) is connected to a cutter holder (44) by several detachable mounting modules (4); the outer wall of the frame (1) is bolted to a tray (5), and the top of the tray (5) is bolted to a lifting protrusion (51); when the designated cutter holder (44) reaches the position of the lifting protrusion (51), it will be raised under the action of the lifting protrusion (51).

2. The rotatable servo tool magazine according to claim 1, characterized in that... The mounting module (4) includes a mounting frame (41), a base box (42), a lifting seat (43), a tool holder (44), a top column (45), and rollers (47). The outer wall of the tool disc (3) is provided with several mounting slots with the same spacing. The mounting frame (41) is connected to the inside of the mounting slot by bolts. The base box (42) is welded to the bottom of the mounting frame (41). The lifting seat (43) is slidably connected to the inside of the mounting frame (41). Several elastic elements (46) are connected between the bottom of the lifting seat (43) and the inner wall of the base box (42). One end of the top column (45) is welded to the bottom of the lifting seat (43). The other end of the top column (45) extends through the bottom of the base box (42) to the upper side of the tray (5) and is rotatably connected to rollers (47).

3. The rotatable servo tool magazine according to claim 2, characterized in that... There are four elastic elements (46), which are arranged in a circular array and evenly distributed on the outside of the top post (45); the elastic element (46) is one of a spring or a spring post.

4. The rotatable servo tool magazine according to claim 2, characterized in that... The lifting protrusion (51) has a convex structure with an upward-sloping arc on both sides and a semi-circular top.

5. A rotatable servobuffer according to claim 4, wherein The center position of the lifting protrusion (51) is on the same axis as the tool changing position; the height of the lifting protrusion (51) is the same as the maximum stroke of the top column (45) moving upward, and meets the tool changing stroke of the machine tool.

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