A multi-tool horizontal tool magazine for machining centers and its installation method

Abstract

This invention discloses a multi-tool position horizontal tool magazine for machining centers and its installation method, specifically relating to the field of tool magazines. The horizontal tool magazine includes a tool magazine body, which comprises a base, a slide, and a tool magazine. The slide is slidably mounted on the base, and the tool magazine is mounted on the slide. Through the coordinated operation of the tool magazine body, a linear drive mechanism, a transmission mechanism, and several tool holders, this invention enables the tool magazine body to have a high capacity, allowing the machining center to store more types and quantities of tools. This allows the machining center to handle more types of machining tasks without frequent downtime for tool changes, thereby increasing the diversity of machined products. Furthermore, the tool change speed is typically fast, which significantly reduces non-productive time—the time required to change tools during machining. Rapid tool changing also helps improve the overall production efficiency of the machining center, reducing debugging time and increasing its overall productivity.

Description

Technical Field

[0001] This invention relates to the field of tool magazine technology, and more specifically, to a multi-tool horizontal tool magazine for machining centers and its installation method. Background Technology

[0002] A flat-mounted tool magazine (also known as a planar tool magazine or disc tool magazine) is a common type of tool magazine used to store and manage tools in CNC machine tools (such as machining centers). A flat-mounted tool magazine is typically designed as a horizontally placed disc or tray with multiple tool holders (tool sleeves) mounted on it, with the tools arranged in a specific order within these holders.

[0003] A five-axis machining center is a CNC machine tool that can achieve control of five degrees of freedom in five directions, and can simultaneously control three linear axes (XYZ) and two rotary axes. This capability makes 5-axis machining centers ideal for machining parts with complex geometries, such as vortex and turbine blades. The products, vortexes, and turbines processed by 5-axis machining centers are complex and diverse, requiring a large tool capacity and more tool magazine positions. Furthermore, most 5-axis machining centers use robotic arms for tool changing. Mechanical tool changing involves significant inertia. Due to the weight of the robotic arm and tools, high-speed movement generates considerable inertia, demanding high stability and control precision from the robotic arm to prevent tool collisions due to inertia. High-precision electric spindles, typically with extremely high speeds and precision, are suitable for applications requiring high-precision machining. However, these spindles are highly sensitive to vibration and impact, requiring precise adjustment to avoid damage. This process is time-consuming and impacts production efficiency. Summary of the Invention

[0004] This invention provides a multi-tool horizontal tool magazine for machining centers and its installation method. The problem it aims to solve is that existing five-axis machining centers using robotic arms for tool changing have significant inertia, requiring the robotic arms to have high stability and control precision to ensure that the tools do not collide due to inertia during the exchange process. High-precision electric spindles typically have extremely high speeds and precision, making them suitable for applications requiring high-precision machining. However, these spindles are very sensitive to vibration and impact, requiring accurate adjustment; otherwise, they are easily damaged. This process is time-consuming and affects production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-tool horizontal tool magazine for a machining center, comprising: a tool magazine body, the tool magazine body including a base, a slide table and a tool magazine, the slide table being slidably disposed on the base, and the tool magazine being mounted on the slide table;

[0006] The edge of the tool magazine is evenly distributed with several tool holders, and each tool holder is equipped with a tool clip. The tool clip is used to pick up the tool for tool changing. The tool magazine is equipped with a transmission mechanism, which is used to drive the tool clip to move along the edge of the tool magazine until it is on the same horizontal axis as the tool changing point.

[0007] The base is equipped with a linear drive mechanism, which drives the tool magazine to move linearly until the tool holder moves to the tool change point.

[0008] In a preferred embodiment, the linear drive mechanism is a cylinder, which is mounted on a base and its output end is fixedly connected to the tool magazine.

[0009] In a preferred embodiment, the transmission mechanism is a chain drive structure, which includes a power component, two sprockets and a chain. The power component is mounted on the tool magazine, and the output end of the power component is connected to one of the sprockets. The chain drive is connected to the two sprockets, and several tool holders are evenly arranged on the chain.

[0010] The knife holder includes a clamping base, with an elastic element one on the outer side of the clamping base and an elastic element two on the inner side of the clamping base.

[0011] In a preferred embodiment, a chip scraping mechanism is provided on the tool magazine. The chip scraping mechanism includes a feed assembly mounted on the tool magazine. The output end of the feed assembly is connected to an annular seat. An annular groove is formed in the annular seat. A slide block is slidably arranged in the annular groove. A power component three is mounted on the slide block. A scraper block is mounted on the output end of the power component three. An annular groove is formed on the outer side of the tool. The power component three is used to drive the scraper block to extend into the annular groove. A rotary drive assembly is provided on the annular seat. The rotary drive assembly is used to move the scraper block along the inner wall of the annular groove.

[0012] In a preferred embodiment, the rotary drive assembly includes a second power component, which is installed at the bottom of the ring seat. The output end of the second power component extends into the ring groove and is equipped with a drive gear. A toothed ring is rotatably disposed in the ring groove. The drive gear meshes with the toothed ring, and a slide is mounted on the toothed ring.

[0013] In a preferred embodiment, the scraper is provided with an air blowing mechanism, which includes a plurality of air outlets at the end of the scraper, and the air outlets of the plurality of air outlets all point to the annular groove.

[0014] In a preferred embodiment, the blowing mechanism includes an air inlet pipe, an air inlet assembly connected to the air inlet end of the air inlet pipe, and an air outlet end of the air inlet pipe extending into the scraper block. The scraper block has an inner cavity, and the air inlet pipe and several air outlets are all connected to the inner cavity.

[0015] In a preferred embodiment, the scraper has several side holes, which are connected to corresponding air outlets. The outer side of the blade has several notches, and the air outlets of the side holes all point to the intersection of the annular groove and the notches.

[0016] A method for installing a multi-tool horizontal tool magazine in a machining center includes the following steps:

[0017] Step 1: The transmission mechanism drives the tool holder to move until it is on the same horizontal axis as the tool change point, and the linear drive mechanism drives the tool holder to move linearly to the tool change point;

[0018] Step 2: Then, the chip scraping mechanism drives the ring seat to move above the tool change point via the feed assembly;

[0019] Step 3: The machine tool spindle drive system drives the tool to move from top to bottom at the tool change point. When the tool moves into the ring seat, the chip scraping mechanism drives the scraper block to move into the annular groove. At the same time, the air blowing mechanism blows air into the annular groove through several air outlets and side holes.

[0020] Step 4: Then the scraping mechanism removes the debris in the annular groove through the scraper and the rotary drive assembly. When the scraper moves into the notch, the airflow discharged from the side hole blows towards the intersection of the notch and the annular groove.

[0021] Step 5: Finally, the machine tool spindle drive system drives the tool to move upward, the feed assembly drive ring seat resets, and finally the machine tool spindle drive system drives the tool to move downward to the tool change point for tool change.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention, through the coordinated operation of the tool magazine body, linear drive mechanism, transmission mechanism, and several tool holders, enables the tool magazine body to have a high capacity, allowing the machining center to store more types and quantities of tools. This allows the machining center to handle more types of machining tasks without frequent downtime for tool changes, thereby increasing the diversity of machined products. Furthermore, the tool change speed is usually faster, which can significantly reduce non-productive time, i.e., the time required to change tools during machining. The rapid tool change also helps to improve the overall production efficiency of the machining center, reducing debugging time and improving its production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0026] Figure 3 for Figure 1 Enlarged version of section A.

[0027] Figure 4 This is a three-dimensional structural diagram of the blade clip of the present invention.

[0028] Figure 5 This is a three-dimensional structural diagram of the cutting tool of the present invention.

[0029] Figure 6 This is a three-dimensional schematic diagram of the scraping mechanism of the present invention.

[0030] Figure 7 This is a top sectional view of the ring seat of the present invention.

[0031] Figure 8 This is a schematic diagram of the movement process of the scraper block of the present invention.

[0032] Figure 9 This is a schematic diagram of the air blowing mechanism of the present invention.

[0033] Figure 10 This is a top cross-sectional view of the scraper block of the present invention.

[0034] Figure 11 This is a flowchart of the method of the present invention.

[0035] The attached figures are labeled as follows: 1. Tool magazine body; 11. Base; 12. Slide table; 13. Tool magazine; 131. Tool holder; 132. Tool clamp; 1321. Clamping seat; 1322. Elastic element one; 1323. Elastic element two; 2. Linear drive mechanism; 3. Transmission mechanism; 31. Power component one; 32. Sprocket; 33. Chain; 4. Tool; 41. Annular groove; 42. Notch; 5. Chip scraping mechanism; 51. Feed assembly; 52. Ring seat; 53. Slide; 54. Annular groove; 55. Rotary drive assembly; 551. Power component two; 552. Drive gear; 553. Gear ring; 56. Power component three; 57. Scraper; 6. Air blowing mechanism; 61. Air inlet pipe; 62. Inner cavity; 63. Air outlet; 7. Side hole. Detailed Implementation

[0036] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] Refer to the instruction manual appendix Figures 1 to 3 A multi-tool horizontal tool magazine for machining centers includes: a tool magazine body 1, the tool magazine body 1 including a base 11, a slide 12 and a tool magazine 13, the slide 12 being slidably disposed on the base 11 and the tool magazine 13 being mounted on the slide 12;

[0038] The edge of the tool magazine 13 is evenly distributed with several tool holders 131, and each tool holder 131 is provided with a tool clip 132. The tool clip 132 is used to clamp the tool 4 for tool changing. The tool magazine 13 is provided with a transmission mechanism 3, which is used to drive the tool clip 132 to move along the edge of the tool magazine 13 until it is on the same horizontal axis as the tool changing point.

[0039] A linear drive mechanism 2 is provided on the base 11. The linear drive mechanism 2 is used to drive the tool magazine 13 to move linearly until the tool holder 132 moves to the tool change point.

[0040] It should be noted that the linear drive mechanism 2 can be a lead screw motor, which drives the tool magazine 13 to move linearly. The transmission mechanism 3 can be a ring structure, which adjusts the position of the tool holder 132 by rotating. The tool change point is the tool change position of the tool 4.

[0041] The specific implementation scenario is as follows: When tool changing is required, the transmission mechanism 3 drives several tool holders 132 to move along the edge of the tool magazine 13. When the tool holder 132 used for tool changing moves to the same horizontal axis as the tool changing point, the linear drive mechanism 2 drives the tool magazine 13 to move linearly on the surface of the base 11 through the lead screw motor. The tool holder 132 used for tool changing moves to the tool changing point, and then the machine tool spindle drive system drives the tool 4 to move directly above the tool changing point. Then, the tool 4 is driven to move vertically downward to the tool changing point for tool changing. The number of tool holders 132 can be set according to actual conditions, and it has a high capacity. This means that more types and quantities of tools 4 can be stored in the machining center, which enables the machining center to handle more types of machining tasks without frequent machine downtime to change tools 4. This increases the diversity of processed products, and the tool changing speed is usually fast. This can significantly reduce non-productive time, that is, the time required to change tools 4 during the machining process. Moreover, fast tool changing helps to improve the overall production efficiency of the machining center, reduce debugging time, and improve its production efficiency.

[0042] Further, please refer to the appendix to the instruction manual. Figure 1 The linear drive mechanism 2 is a cylinder, which is mounted on the base 11 and the output end of the cylinder is fixedly connected to the tool chamber 13.

[0043] It should be noted that the tool magazine 13 is driven by a cylinder to move linearly on the base 11, which can drive the tool holder 132 to feed and reset, making it convenient for tool changing.

[0044] Further, please refer to the appendix to the instruction manual. Figure 3The transmission mechanism 3 is a chain drive structure. The transmission mechanism 3 includes a power component 31, two sprockets 32 and a chain 33. The power component 31 is installed on the tool magazine 13. The output end of the power component 31 is connected to one of the sprockets 32. The chain 33 is connected to the two sprockets 32. Several tool holders 131 are evenly arranged on the chain 33.

[0045] It should be noted that the power component 31 can be a geared motor, which drives the sprocket 32 ​​to move the chain 33, so that the chain 33 can drive the tool holder 132 to move at a constant speed on the edge of the tool magazine 13, making it easy to adjust the tool holder 132 for tool changing operations.

[0046] Further, please refer to the appendix to the instruction manual. Figure 4 The knife clamp 132 includes a clamping seat 1321, with an elastic element 1322 on the outer side of the clamping seat 1321 and an elastic element 2 1323 on the inner side of the clamping seat 1321.

[0047] It should be noted that the first elastic element 1322 is an elastic metal strip, and the second elastic element 1323 is an elastic plastic. The elastic metal strip can help to grip the tool 4, while the elastic plastic can reduce damage to the spindle of the tool 4.

[0048] In the above technical solution, the current cutting tool 4 usually needs to use cutting fluid to cool down the workpiece during the machining process. The machining process is accompanied by the splashing of chips, which makes the chips with cutting fluid easy to splash and adhere to the annular groove 41 of the cutting tool 4. In addition, the tool changing of the cutting tool 4 is usually an automated operation. If there are chips in the annular groove 41 when changing the tool, it will cause the position of the cutting tool 4 to deviate after the tool change, which will affect the installation accuracy of the cutting tool 4 in the later stage. To this end, the present invention proposes a chip scraping mechanism 5 to scrape and clean the chips in the annular groove 41 before the tool change.

[0049] For details, please refer to the instruction manual appendix. Figures 5 to 8 The tool magazine 13 is equipped with a chip scraping mechanism 5, which includes a feed assembly 51. The feed assembly 51 is mounted on the tool magazine 13. The output end of the feed assembly 51 is connected to an annular seat 52. An annular groove 54 is provided in the annular seat 52. A slide block 53 is slidably arranged in the annular groove 54. A power component 56 is mounted on the slide block 53. A scraper block 57 is mounted on the output end of the power component 56. An annular groove 41 is provided on the outer side of the tool 4. The power component 56 is used to drive the scraper block 57 to extend into the annular groove 41. A rotary drive assembly 55 is provided on the annular seat 52. The rotary drive assembly 55 is used to move the scraper block 57 along the inner wall of the annular groove 41.

[0050] It should be noted that the feed assembly 51 is a hydraulic cylinder and the power unit 56 is a pneumatic cylinder. The hydraulic cylinder drives the ring seat 52 to move directly above the tool change point. When the machine tool spindle drive system drives the tool 4 to move into the ring seat 52, the drive movement of the tool 4 is stopped, and the pneumatic cylinder drives the scraper 57 to extend into the annular groove 41 until the scraper 57 contacts the inner wall of the annular groove 41. Then, the rotation drive assembly 55 drives the scraper 57 to move along the inner wall of the annular groove 41 to scrape off the debris adhering to the inner wall of the annular groove 41.

[0051] Further, please refer to the appendix to the instruction manual. Figure 7 The rotary drive assembly 55 includes a second power component 551, which is installed at the bottom of the ring seat 52. The output end of the second power component 551 extends into the ring groove 54 and is equipped with a drive gear 552. A toothed ring 553 is rotatably arranged in the ring groove 54. The drive gear 552 meshes with the toothed ring 553, and the slide seat 53 is installed on the toothed ring 553.

[0052] It should be noted that the power component 551 is a motor, which drives the drive gear 552 to rotate, which in turn drives the gear ring 553 to rotate. This, in turn, drives the scraper block 57 to revolve through the slide block 53, so that the scraper block 57 scrapes off the debris adhering to the inner wall of the annular groove 41 during its revolve motion.

[0053] In the above technical solution, the scraper 57 moves within the annular groove 41 to scrape away debris adhering to the inner wall of the annular groove 41. However, when the scraper 57 is extended into the annular groove 41, if there is debris at the contact point between the scraper 57 and the annular groove 41, the debris will be trapped between the annular groove 41 and the scraper 57. When the scraper 57 is driven to move within the annular groove 41, the scraper 57 will cause the debris to move along the annular groove 41, resulting in the debris... The chip damages the cutting tool 4, and the chip adhering to the annular groove 41 is slightly larger, while the chip in other locations is slightly smaller. When the scraper 57 moves in the annular groove 41, the chip causes a gap between the scraper 57 and the annular groove 41, which prevents the scraper 57 from scraping off other chips. To address this, the present invention proposes an air blowing mechanism 6, which blows off the chip at the contact point between the scraper 57 and the annular groove 41 by blowing air when the scraper 57 is driven to move into the annular groove 41 and contact the inner wall of the annular groove 41.

[0054] Further, please refer to the appendix to the instruction manual. Figure 9The scraper block 57 is provided with an air blowing mechanism 6. The air blowing mechanism 6 includes a plurality of air outlet holes 63 opened at the end of the scraper block 57. The air outlet ends of the plurality of air outlet holes 63 all point to the annular groove 41. The air blowing mechanism 6 includes an air inlet pipe 61. The air inlet end of the air inlet pipe 61 is connected to an air inlet component. The air outlet end of the air inlet pipe 61 extends into the scraper block 57. An inner cavity 62 is opened in the scraper block 57. The air inlet pipe 61 and the plurality of air outlet holes 63 are all connected to the inner cavity 62.

[0055] It should be noted that the air intake component is an air pump, which can be installed at the end of the scraper 57. When the scraper 57 is driven to move into the annular groove 41, the air pump can output airflow, which blows the airflow from several air outlets 63 into the annular groove 41 to blow away the debris at the contact position between the scraper 57 and the annular groove 41, thus preventing debris from existing between the scraper 57 and the annular groove 41.

[0056] In the above technical solution, the existing tool 4 has an annular groove 41 on its outer side mainly to facilitate the tool holder 132 to extend into the annular groove 41 to clamp and fix the tool 4. At the same time, the annular groove 41 is also a tool retraction groove, so that the tool 4 can be smoothly withdrawn after processing without damaging the processed surface. In addition, a notch 42 is usually opened on the annular groove 41 to help disperse stress and reduce stress concentration. When scraping by the scraper 57, if there are debris at the intersection of the notch 42 and the annular groove 41, the debris will hinder the movement of the scraper 57 when it moves. Therefore, the present invention opens a side hole 7 on the scraper 57 so that the airflow can blow towards the intersection of the annular groove 41 and the notch 42 to blow away the debris at that position.

[0057] For details, please refer to the instruction manual appendix. Figure 10 The scraper 57 has several side holes 7, which are connected to the corresponding air outlets 63. The outer side of the cutter 4 has several notches 42, and the air outlets of the side holes 7 all point to the intersection of the annular groove 41 and the notches 42.

[0058] It should be noted that by setting the side hole 7, the airflow can be blown towards the intersection of the annular groove 41 and the notch 42, blowing away the debris at that location and avoiding affecting the movement of the scraper block 57.

[0059] Refer to the instruction manual appendix Figure 11 A method for installing a multi-tool horizontal tool magazine in a machining center includes the following steps:

[0060] Step 1: The transmission mechanism 3 drives the tool holder 132 to move to the same horizontal axis as the tool change point, and the linear drive mechanism 2 drives the tool holder 132 to move linearly to the tool change point;

[0061] Step 2: Then, the chip scraping mechanism 5 drives the ring seat 52 to move above the tool change point via the feed assembly 51;

[0062] Step 3: The machine tool spindle drive system drives the tool 4 to move from top to bottom at the tool change point. When the tool 4 moves into the ring seat 52, the chip scraping mechanism 5 drives the scraper block 57 to move into the annular groove 41. At the same time, the air blowing mechanism 6 blows air into the annular groove 41 through several air outlets 63 and side holes 7.

[0063] Step 4: Then the scraping mechanism 5 removes the debris in the annular groove 41 through the scraper 57 and the rotary drive assembly 55. When the scraper 57 moves into the notch 42, the airflow discharged from the side hole 7 blows towards the intersection of the notch 42 and the annular groove 41.

[0064] Step 5: Finally, the machine tool spindle drive system drives the tool 4 to move upward, the feed assembly 51 drives the ring seat 52 to reset, and finally the machine tool spindle drive system drives the tool 4 to move downward to the tool change point for tool change.

[0065] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively 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.

Claims

1. A multi-tool horizontal tool magazine for a machining center, characterized in that, include: Tool magazine body (1), the tool magazine body (1) includes a base (11), a slide (12) and a tool magazine (13), the slide (12) is slidably disposed on the base (11), and the tool magazine (13) is mounted on the slide (12); The edge of the tool magazine (13) is evenly distributed with a number of tool holders (131), and each of the tool holders (131) is provided with a tool clip (132). The tool clip (132) is used to clamp the tool (4) for tool changing. The tool magazine (13) is provided with a transmission mechanism (3). The transmission mechanism (3) is used to drive the tool clip (132) to move along the edge of the tool magazine (13) until it is on the same horizontal axis as the tool changing point. A linear drive mechanism (2) is provided on the base (11). The linear drive mechanism (2) is used to drive the tool magazine (13) to move linearly until the tool holder (132) moves to the tool change point. The tool magazine (13) is provided with a chip scraping mechanism (5). The chip scraping mechanism (5) includes a feed assembly (51). The feed assembly (51) is installed on the tool magazine (13). The output end of the feed assembly (51) is connected to a ring seat (52). An annular groove (54) is opened in the annular seat (52). A slide seat (53) is slidably arranged in the annular groove (54). A power component three (56) is installed on the slide seat (53). A scraper block (57) is installed at the output end of the power component three (56). An annular groove (41) is opened on the outer side of the tool (4). The power component three (56) is used to drive the scraper block (57) to extend into the annular groove (41). A rotary drive assembly (55) is provided on the annular seat (52). The rotary drive assembly (55) is used to move the scraper block (57) along the inner wall of the annular groove (41). The rotary drive assembly (55) includes a second power component (551), which is installed at the bottom of the ring seat (52). The output end of the second power component (551) extends into the ring groove (54) and is equipped with a drive gear (552). A toothed ring (553) is rotatably arranged in the ring groove (54). The drive gear (552) meshes with the toothed ring (553), and the slide (53) is mounted on the toothed ring (553). The scraper (57) is provided with an air blowing mechanism (6), which includes a plurality of air outlets (63) opened at the end of the scraper (57), and the air outlets of the plurality of air outlets (63) all point to the annular groove (41).

2. The multi-tool horizontal tool magazine for a machining center according to claim 1, characterized in that: The linear drive mechanism (2) is a cylinder, which is mounted on the base (11) and the output end of the cylinder is fixedly connected to the tool chamber (13).

3. A multi-tool horizontal tool magazine for a machining center according to claim 2, characterized in that: The transmission mechanism (3) is a chain drive structure. The transmission mechanism (3) includes a power component (31), two sprockets (32) and a chain (33). The power component (31) is installed on the tool magazine (13). The output end of the power component (31) is connected to one of the sprockets (32). The chain (33) is driven and connected to the two sprockets (32), and several tool holders (131) are evenly arranged on the chain (33).

4. A multi-tool horizontal tool magazine for a machining center according to claim 3, characterized in that: The blade holder (132) includes a holder (1321), with an elastic element (1322) on the outer side of the holder (1321) and an elastic element (1323) on the inner side of the holder (1321).

5. A multi-tool horizontal tool magazine for a machining center according to claim 1, characterized in that: The blowing mechanism (6) includes an air inlet pipe (61), the air inlet end of which is connected to an air inlet assembly, the air outlet end of which extends into the scraper block (57), the scraper block (57) having an inner cavity (62), and the air inlet pipe (61) and several air outlet holes (63) communicating with the inner cavity (62).

6. A multi-tool horizontal tool magazine for a machining center according to claim 5, characterized in that: The scraper (57) has several side holes (7) and the several side holes (7) are connected to the corresponding air outlets (63). The outer side of the cutter (4) has several notches (42) and the air outlets of the several side holes (7) all point to the intersection of the annular groove (41) and the notches (42).

7. A method for installing a multi-tool horizontal tool magazine for a machining center as described in claim 6, characterized in that, Includes the following steps: Step 1: The transmission mechanism (3) drives the tool holder (132) to move to the same horizontal axis as the tool change point, and the linear drive mechanism (2) drives the tool holder (132) to move linearly to the tool change point; Step 2: Then the chip scraping mechanism (5) drives the ring seat (52) to move above the tool change point through the feed assembly (51); Step 3: The machine tool spindle drive system drives the tool (4) to move from top to bottom at the tool change point. When the tool (4) moves into the ring seat (52), the chip scraping mechanism (5) drives the scraper block (57) to move into the annular groove (41). At the same time, the air blowing mechanism (6) blows air into the annular groove (41) through several air outlets (63) and side holes (7). Step 4: Then the scraping mechanism (5) removes the debris in the annular groove (41) by scraping block (57) and rotary drive assembly (55). When scraping block (57) moves into the notch (42), the airflow discharged from the side hole (7) blows towards the intersection of notch (42) and annular groove (41). Step 5: Finally, the machine tool spindle drive system drives the tool (4) to move upward, the feed assembly (51) drives the ring seat (52) to reset, and finally the machine tool spindle drive system drives the tool (4) to move downward to the tool change point for tool change.

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