Tool magazine switching mechanism for five-axis machining center

Abstract

The utility model discloses a tool magazine switching mechanism for a five-axis machining center, and relates to the technical field of numerical control milling machines, the tool magazine switching mechanism comprises a machine table, an operation table, a machining mechanism and a tool magazine are arranged on the table top of the machine table, a plurality of tools are installed in the tool magazine through tool sleeves, an oil storage tank and a plurality of oil conveying pipes are installed in the tool magazine, and the oil conveying pipes are connected with the operation table. A dust collection assembly is arranged in a mounting groove in the top end of the machine table. According to the tool magazine switching mechanism for the five-axis machining center, the oil storage tank, the oil conveying pipe and the conveying pump are arranged in a matched mode, lubricating oil in the oil storage tank can be pumped into the tool pouch in a timed mode, in other words, the tool pouch and a tool are lubricated, the tool can be pulled out conveniently, and the tool changing efficiency and the overall machining efficiency are guaranteed; by arranging the dust collection assembly and utilizing cooperation of the negative pressure air bellow, the absorption cover, the suction pipe and the discharge pipe, generated machining chippings are rapidly absorbed, so that dust diffusion is avoided, the working environment is cleaner, and the body health of workers is also protected.

Description

A tool magazine switching mechanism for a five-axis machining center Technical Field

[0001] This utility model relates to the field of CNC milling machine technology, specifically a tool magazine switching mechanism for a five-axis machining center. Background Technology

[0002] Five-axis machining centers are high-tech, high-precision machining centers specifically designed for machining complex curved surfaces. They mainly encompass CNC technology, five-axis linkage technology, tooling technology, mechanical structure technology, and control algorithms, and have a significant impact on industries such as aviation, aerospace, military, scientific research, precision instruments, and high-precision medical equipment.

[0003] During the use of a five-axis machining center, the cutting tools need to be derusted regularly. However, because rust remover residue remains on the tool surface after derusting, it needs to dry naturally. After drying, the rust remover can leave water stains on the tool surface, affecting its performance. To overcome these defects, existing technology (Chinese patent application number 202420716635.0, application date 2024-04-09) describes a five-axis machining center with a tool magazine structure. This is achieved by fitting an annular groove on a circular cover onto an annular plate on the tool magazine, and using an atomizing nozzle to atomize the rust remover. The atomized rust remover can then be used to clean the tool magazine. The cutting tools are derusted to prevent moisture from adhering to their surface and causing rust, thus protecting them. After the cutting tools are treated, a hot air blower dries them, preventing any residue of the derusting agent. However, in the existing equipment, the cutting tools are stored in the tool magazine's tool holder for a long time, resulting in a tight fit. This makes it difficult to remove the cutting tools during tool changes, affecting tool changing efficiency and even the overall processing efficiency. Furthermore, the existing equipment does not have a structure for collecting waste debris from the processed parts, leading to dust pollution and a poor working environment, which may also affect the health of the workers.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on existing equipment. Therefore, we have proposed a tool magazine switching mechanism for a five-axis machining center that can effectively solve these problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a tool magazine switching mechanism for a five-axis machining center, in order to solve the problems mentioned in the background art. In existing devices, the tools are stored in the tool holder of the tool magazine for a long time, resulting in tight jamming. This makes it difficult to remove the tools during tool changes, thus affecting the tool changing efficiency and even the overall machining efficiency. In addition, existing devices do not have a structure for collecting waste debris from the machined parts, resulting in dust and a poor working environment, which may also affect the health of the workers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool magazine switching mechanism for a five-axis machining center, comprising a machine base, an operating table and a machining mechanism at the top of the machine base table, a tool magazine above the machine base table, and multiple tools installed inside the tool magazine; multiple evenly distributed tool sleeves are fixedly connected to the inner wall of the tool magazine, and the tools are correspondingly inserted into the inside of the tool sleeves; an oil storage tank for storing lubricating oil is fixedly installed in the center of the tool magazine, and a delivery pump is installed inside the oil storage tank, and the output end of the delivery pump is connected to the tool sleeves through multiple oil delivery pipes; a mounting groove is opened at the top of the machine base, and a dust collection component is installed inside the mounting groove; the dust collection component includes a negative pressure air box fixedly installed inside the mounting groove, and an intake pipe and an exhaust pipe are fixedly connected to the input and output ends of the negative pressure air box, respectively; an absorption cover is fixedly connected to the end of the intake pipe, and the absorption cover is located above the operating table.

[0007] Preferably, a vertical plate is fixedly connected to one end and one side of the top of the machine tool, and a drive motor is fixedly installed on the outer end wall of the vertical plate, and the output shaft of the drive motor passes through the inner side of the vertical plate and is fixedly connected to the tool magazine.

[0008] Preferably, the inner end wall of the upright plate is formed with a plurality of circumferentially evenly distributed positioning frames, and the tool magazine is limited to rotating inside the positioning frames.

[0009] Preferably, a tool changing mechanism is provided between the tool magazine and the machining mechanism. The tool changing mechanism includes a slide rail fixedly connected to the inner wall of the vertical plate, and a transverse slide block is slidably connected to the slide rail. A rotary slide block is slidably connected to one side of the transverse slide block, and a tool changing head is fixedly connected to the rotary output end of the rotary slide block.

[0010] Preferably, the inner side of the tool changer is equipped with a plurality of evenly distributed elastic fasteners, and the elastic fasteners are composed of springs and balls, and a groove is formed on the outer wall of the tool.

[0011] Preferably, a support is fixedly connected to the inner end wall of the mounting groove, the suction pipe is disconnected in the middle, and the disconnected part is rotatably connected to the inner side of the support.

[0012] Preferably, a steering assembly is provided on the outer side of the suction tube. The steering assembly includes a gear fixedly connected to the outer wall of the upper part of the suction tube. A fixing tube is fixedly connected to the inner side wall of the mounting groove. A toothed rod is slidably connected to one side of the fixing tube and meshes with the gear. An electromagnet is fixedly installed on one side of the inner wall of the fixing tube. A mounting magnet is fixedly connected to the side of the toothed rod located inside the fixing tube. When the electromagnet is energized, it generates magnetic force and attracts the mounting magnet. A push spring is fixedly connected between the toothed rod and the electromagnet.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the tool magazine switching mechanism used in this five-axis machining center, through the cooperation of the oil storage tank, oil supply pipe and delivery pump, can pump the lubricating oil in the oil storage tank to the inside of the tool holder at regular intervals, that is, to lubricate the tool holder and the tool, so as to facilitate the removal of the tool, and ensure the tool changing efficiency and overall machining efficiency; by setting up a dust collection component, using the cooperation of negative pressure air box, absorption hood, suction pipe and discharge pipe, the generated machining debris can be quickly absorbed, thereby avoiding dust diffusion, making the working environment cleaner, and protecting the health of workers. The specific contents are as follows: (1) Through the cooperation of the oil storage tank, oil supply pipe and delivery pump, the lubricating oil in the oil storage tank can be pumped to the inside of each tool holder at regular intervals through the oil supply pipe, so as to lubricate the tool holder and the tool, thereby effectively preventing the problem of the two being stuck for a long time, which makes it difficult to remove the tool and affects the tool changing efficiency or even the overall machining efficiency.

[0014] (2) By setting up a dust collection component, when the processing mechanism is processing on the operating table, the negative pressure air box is activated and the processing debris generated is quickly absorbed through the suction pipe and the absorption hood, and then discharged through the discharge pipe. The outer shell of the discharge pipe is equipped with a collection box, which effectively avoids dust diffusion, makes the working environment cleaner, and protects the health of the staff.

[0015] (3) When changing tools, the transverse slide moves the tool changing head to below the tool of the machining mechanism. Then, the rotating slide moves the tool changing head up and down, so that the tool can be pulled out downwards. Then the transverse slide moves in the opposite direction, and at the same time the rotating slide moves the tool changing head 90°, so that the tool is inserted into the empty tool holder. Then the drive motor drives the tool magazine to rotate, so that the tool changing head takes out the new tool from the tool holder. Then the above process is reversed to install the tool on the machining mechanism, thereby realizing the automatic tool changing.

[0016] (4) By setting a steering component, the electromagnet is turned on and off at regular intervals during the use of the dust collection component. When the electromagnet is energized, the electromagnet generates a magnetic force that attracts the installed magnet, which will drive the rack to move into the fixed tube. The rack continues to drive the gear, suction tube and absorption cover to rotate in sequence. When the electromagnet is de-energized, the magnetic force disappears, the push spring rebounds and drives the rack to move in the opposite direction, and the absorption cover also rotates in the opposite direction. This expands the dust collection range of the absorption cover and enhances the dust collection effect. Attached Figure Description

[0017] Figure 1 is a front view of the overall structure of this utility model;

[0018] Figure 2 is a side view of the overall structure of this utility model;

[0019] Figure 3 is a schematic diagram of the structure of the machine tool of this utility model;

[0020] Figure 4 is a schematic diagram of the tool changing mechanism of this utility model;

[0021] Figure 5 is a schematic diagram of the internal structure of the tool magazine of this utility model;

[0022] Figure 6 is a schematic diagram of the structure of the dust collection component of this utility model.

[0023] In the diagram: 1. Machine base; 2. Operating table; 3. Machining mechanism; 4. Tool magazine; 5. Tool holder; 6. Tool; 7. Vertical plate; 8. Positioning frame; 9. Drive motor; 10. Oil tank; 11. Oil supply pipe; 12. Slide rail; 13. Transverse slide; 14. Rotary slide; 15. Tool changer; 16. Elastic fastener; 17. Mounting slot; 18. Negative pressure air box; 19. Suction pipe; 20. Absorption hood; 21. Support base; 22. Gear; 23. Fixing pipe; 24. Gear rack; 25. Electromagnet; 26. Mounting magnet; 27. Push spring. 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] Example 1: Referring to Figures 1-6, this utility model provides the following technical solution: A tool magazine switching mechanism for a five-axis machining center, including a machine base 1. An operating table 2 and a machining mechanism 3 are provided at the top of the machine base 1. A tool magazine 4 is provided above the machine base 1, and multiple tools 6 are installed on the inner side of the tool magazine 4. A vertical plate 7 is fixedly connected to one end and one side of the top of the machine base 1, and a drive motor 9 is fixedly installed on the outer end wall of the vertical plate 7. The output shaft of the drive motor 9 passes through the inner side of the vertical plate 7 and is fixedly connected to the tool magazine 4 to allow axial rotation of the tool magazine 4. Furthermore, multiple circumferentially evenly distributed positioning frames 8 are formed on the inner end wall of the vertical plate 7, and the tool magazine 4 is limited to rotate within the positioning frames 8 to improve the stability of the tool magazine 4 during rotational installation.

[0026] Multiple evenly distributed tool sleeves 5 are fixedly connected to the inner wall of the tool magazine 4, and the cutting tools 6 are correspondingly inserted into the inside of the tool sleeves 5. An oil storage tank 10 for storing lubricating oil is fixedly installed in the center of the tool magazine 4, and a delivery pump is installed inside the oil storage tank 10. The output end of the delivery pump is connected to the tool sleeves 5 through multiple oil delivery pipes 11. Through the coordinated arrangement of the oil storage tank 10, the oil delivery pipes 11 and the delivery pump, the lubricating oil in the oil storage tank 10 can be pumped to the inside of each tool sleeve 5 through the oil delivery pipes 11 at regular intervals, so as to lubricate the tool sleeves 5 and the cutting tools 6. This effectively prevents the two from being stuck together for a long time, which would make it difficult to remove the cutting tools 6 and affect the tool changing efficiency or even the overall machining efficiency.

[0027] In addition, a tool changing mechanism is provided between the tool magazine 4 and the machining mechanism 3. The tool changing mechanism includes a slide rail 12 fixedly connected to the inner wall of the vertical plate 7, and a transverse slide 13 slidably connected to the slide rail 12. A rotary slide 14 is slidably connected to one side of the transverse slide 13, and a tool changing head 15 is fixedly connected to the rotary output end of the rotary slide 14. When changing tools, the transverse slide 13 first moves along the slide rail 12 toward the machining mechanism 3. The rotary slide 14 and the tool changing head 15 move synchronously, so that the tool changing head 15 moves to below the tool 6 on the machining mechanism 3. Then, the rotary slide 14 moves upward, driving the tool changing head 15 to move upward synchronously, so that the tool changing head 15 is locked onto the outside of the tool 6. Then, the rotary slide 14 moves downward, causing the tool changing head 15 to pull the tool 6 downward. Then, the transverse slide 13 moves in the opposite direction, while the rotary slide 14 rotates. The output end drives the tool changer 15 to rotate 90°, causing the tool changer 15 to move and insert the tool 6 into the empty tool holder 5. Then the tool changer 15 retracts a certain distance, at which point the drive motor 9 starts and drives the tool magazine 4 to rotate, so that the tool changer 15 aligns with the new tool 6 and takes it out of the tool holder 5. Then the above process is reversed to install the new tool 6 on the machining mechanism 3, thereby realizing the automated replacement of the tool 6. The tool changer 15 has multiple evenly distributed elastic fasteners 16 installed on its inner side, and the elastic fasteners 16 are composed of springs and balls. The outer wall of the tool 6 has a groove. When the tool changer 15 moves and aligns with the outer side of the tool 6, the ball of the elastic fastener 16 will also be locked into the groove of the tool 6 under the action of the spring, thereby increasing the stability of the clamping between the tool changer 15 and the tool 6.

[0028] Example 2: Based on Example 1, the top of the machine 1 is provided with a mounting slot 17, and a dust collection component is provided inside the mounting slot 17. The dust collection component includes a negative pressure air box 18 fixedly installed inside the mounting slot 17. The input end and output end of the negative pressure air box 18 are respectively fixedly connected to a suction pipe 19 and a discharge pipe. The end of the suction pipe 19 is fixedly connected to an absorption cover 20, and the absorption cover 20 is located above the operating table 2. By setting up the dust collection component, when the processing mechanism 3 is processing on the operating table 2, the negative pressure air box 18 is activated and the processing debris generated is quickly absorbed through the suction pipe 19 and the absorption cover 20, and then discharged through the discharge pipe. A collection box is provided on the outer shell of the discharge pipe, thereby effectively preventing dust from spreading, making the working environment cleaner, and protecting the health of the staff.

[0029] Furthermore, a support base 21 is fixedly connected to the inner end wall of the mounting groove 17. The suction pipe 19 is disconnected in the middle, and the disconnected part is rotatably connected to the inner side of the support base 21. A steering assembly is provided on the outer side of the suction pipe 19. The steering assembly includes a gear 22 fixedly connected to the outer wall of the upper part of the disconnected suction pipe 19. A fixing pipe 23 is fixedly connected to the inner side wall of the mounting groove 17. A gear 24 is slidably connected to one side of the fixing pipe 23, and the gear 24 meshes with the gear 22. An electromagnet 25 is fixedly installed on one side of the inner wall of the fixing pipe 23. A mounting magnet 26 is fixedly connected to the side of the gear 24 located inside the fixing pipe 23. When the electromagnet 25 is energized, it generates magnetic force and attracts the mounting magnet 26. A push spring is fixedly connected between the gear 24 and the electromagnet 25. 27. By setting a steering component, the electromagnet 25 is energized and de-energized periodically during the use of the vacuuming component. When energized, the electromagnet 25 generates magnetic force and attracts the mounting magnet 26, which drives the rack 24 to move into the fixed tube 23. At this time, the push spring 27 is compressed, and the rack 24 continues to drive the gear 22 to rotate. The suction tube 19 rotates synchronously, which causes the absorption cover 20 to rotate. When the electromagnet 25 is de-energized, the magnetic force between it and the mounting magnet 26 disappears. At this time, the rack 24 moves outward from the fixed tube 23 under the rebound of the push spring 27, and drives the gear 22, suction tube 19, and absorption cover 20 to rotate in sequence. In this way, the rotating absorption cover 20 can effectively expand the vacuuming range, thereby greatly enhancing the vacuuming effect.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] 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 tool magazine switching mechanism for a five-axis machining center, comprising a machine base (1), wherein an operating table (2) and a machining mechanism (3) are provided on the top of the table surface of the machine base (1), and a tool magazine (4) is provided above the table surface of the machine base (1), and a plurality of tools (6) are installed on the inner side of the tool magazine (4); characterized in that: The inner wall of the tool magazine (4) is connected to multiple tool sleeves (5), and the cutting tools (6) are inserted into the tool sleeves (5). The tool magazine (4) is equipped with an oil storage tank (10), and the oil storage tank (10) is equipped with a delivery pump. The output end of the delivery pump is connected to the tool sleeves (5) through multiple oil delivery pipes (11). The top of the machine base (1) is provided with an installation slot (17), and the installation slot (17) is equipped with a dust collection component. The dust collection component includes a negative pressure air box (18) installed inside the installation slot (17). The input end and the output end of the negative pressure air box (18) are respectively connected to a suction pipe (19) and a discharge pipe. The end of the suction pipe (19) is connected to an absorption cover (20), and the absorption cover (20) is located above the operating table (2).

2. The tool magazine switching mechanism for a five-axis machining center according to claim 1, characterized in that: One end of the top of the machine base (1) is fixedly connected to a vertical plate (7), and a drive motor (9) is fixedly installed on the outer end wall of the vertical plate (7). The output shaft of the drive motor (9) passes through the inner side of the vertical plate (7) and is fixedly connected to the tool magazine (4).

3. The tool magazine switching mechanism for a five-axis machining center according to claim 2, characterized in that: The inner end wall of the upright plate (7) is formed with a plurality of circumferentially evenly distributed positioning frames (8), and the tool magazine (4) is limited to rotating inside the positioning frames (8).

4. The tool magazine switching mechanism for a five-axis machining center according to claim 3, characterized in that: A tool changing mechanism is provided between the tool magazine (4) and the machining mechanism (3). The tool changing mechanism includes a slide rail (12) fixedly connected to the inner wall of the vertical plate (7), and a transverse slide (13) is slidably connected on the slide rail (12). A rotating slide (14) is slidably connected to one side of the transverse slide (13), and a tool changing head (15) is fixedly connected to the rotating output end of the rotating slide (14).

5. The tool magazine switching mechanism for a five-axis machining center according to claim 4, characterized in that: The inner side of the tool changer (15) is equipped with a plurality of evenly distributed elastic fasteners (16), and the elastic fasteners (16) are composed of springs and balls. A groove is formed on the outer wall of the tool (6).

6. The tool magazine switching mechanism for a five-axis machining center according to claim 1, characterized in that: The inner end wall of the mounting groove (17) is fixedly connected to a support base (21), and the suction pipe (19) is disconnected in the middle, and the disconnected part is rotatably connected to the inner side of the support base (21).

7. The tool magazine switching mechanism for a five-axis machining center according to claim 6, characterized in that: A steering assembly is provided on the outside of the suction tube (19). The steering assembly includes a gear (22) fixedly connected to the outer wall of the upper part of the suction tube (19). A fixing tube (23) is fixedly connected to the inner wall of the mounting groove (17). A rack (24) is slidably connected to one side of the fixing tube (23). The rack (24) meshes with the gear (22). An electromagnet (25) is fixedly installed on one side of the inner wall of the fixing tube (23). A mounting magnet (26) is fixedly connected to the side of the rack (24) inside the fixing tube (23). When the electromagnet (25) is energized, it generates magnetic force and attracts the mounting magnet (26). A push spring (27) is fixedly connected between the rack (24) and the electromagnet (25).

Images