A chip-proof tool magazine for drilling and tapping CNC machine tools

Abstract

This invention discloses a chip-proof tool magazine for drilling and tapping CNC machine tools, relating to the field of machine tool magazine technology. It includes a tool magazine with a chip-proof assembly on its inner side. The chip-proof assembly includes several blocking mechanisms, and each blocking mechanism is equipped with an air-jet mechanism. The blocking mechanisms of this invention are independently distributed according to the tool positions in the tool magazine. During tool changing, as the tool is removed or placed in the tool position, the chip-proof plate passively rises and falls with the insertion and removal of the tool. After the tool change is completed, the chip-proof plate automatically resets and closes, completely isolating the machining area from flying chips. Furthermore, the chip-proof plate does not require an additional driving device; it relies on the insertion and removal force of the tool itself to open and close. The air-jet mechanism of this invention is integrated into the blocking mechanisms and is linked to the movement of the chip-proof plate. When the tool is placed or removed from the tool position, and the chip-proof plate is about to open or close, the air-jet mechanism automatically activates, spraying high-pressure airflow at the cutting edge, tool holder, and other parts of the tool to clean the surface chips of the tool.

Description

Technical Field

[0001] This invention relates to the field of machine tool magazine technology, specifically to a chip-resistant magazine for drilling and tapping CNC machine tools. Background Technology

[0002] The chip-proof tool magazine is a specialized tool magazine system developed to address the pain points of traditional machine tool magazines in metal cutting processes, such as susceptibility to chip intrusion, leading to decreased tool positioning accuracy, accelerated tool wear, and frequent tool magazine malfunctions. By integrating core technologies such as sealing and active cleaning, it effectively prevents cutting chips from entering the tool magazine, ensuring the machining accuracy of the machine tool and the stability of the tool magazine operation. It is suitable for scenarios with high requirements for machining quality and efficiency, such as precision machining and mass production.

[0003] Traditional tool magazines lack targeted protective structures, allowing metal shavings generated during drilling and tapping to easily enter the magazine's interior, contaminating the internal environment and resulting in high daily cleaning and maintenance costs. These shavings can also clog the tool selection and changing mechanisms, reducing equipment reliability and increasing the failure rate. Furthermore, shavings adhere to the positioning surfaces of the tool storage slots, affecting tool clamping accuracy and ultimately reducing the quality stability of the machined workpieces. After machining, cutting chips adhere to the tool surface; if these chips are not cleaned before being returned to the magazine, they will be carried into the magazine, further exacerbating internal contamination. Summary of the Invention

[0004] The purpose of this invention is to provide a chip-resistant tool magazine for drilling and tapping CNC machine tools to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A chip-proof tool magazine for a drilling and tapping CNC machine tool includes a tool magazine installed on the drilling and tapping CNC machine tool. A chip-proof component is provided inside the tool magazine. The chip-proof component includes several blocking mechanisms located inside the tool magazine. Each blocking mechanism uses a passively raised and lowered chip-proof plate to prevent chips from entering the tool magazine. An air-jet mechanism is provided on each blocking mechanism to blow away chips from the cutting tool placed in the tool magazine, preventing chips from entering the tool magazine along with the cutting tool.

[0006] As described above, the tool magazine includes a tool changing position, and the tool magazine is provided with a number of placement positions, the number of which is the same as the number of the blocking mechanisms.

[0007] As described above, the shielding mechanism includes an anti-detachment limiting platform, a positioning plate is provided on one side of the anti-detachment limiting platform, the positioning plate is installed on the tool magazine by bolts, and a limiting rod is slidably provided inside the anti-detachment limiting platform. The chip-proof plate is provided at the upper end of the limiting rod by thread engagement, and a buffer spring is provided between the limiting rod and the anti-detachment limiting platform.

[0008] As described above, the middle part of the limiting rod is a hollow structure, one end of the buffer spring is disposed in the hollow structure of the limiting rod, and an installation post is provided on the anti-detachment limiting platform. The installation post is a hollow structure, and the other end of the buffer spring is disposed in the installation post. The installation post is slidably disposed in the hollow structure of the limiting rod.

[0009] The aforementioned jet mechanism includes several jet pipes, each of the chip-proof plates is connected to one of the jet pipes, a rotary joint is provided in the middle of the tool magazine, an air inlet pipe is provided on the rotary joint in a rotatable manner, and several connecting parts are evenly provided along the circumference of the end of the air inlet pipe away from the rotary joint, the jet pipe is connected to the air inlet pipe through the connecting parts, and there is a dynamic seal between the air inlet pipe and the rotary joint.

[0010] As mentioned above, a pressure sensor is provided on the chip shield, and a control valve is provided on each of the jet pipes. The opening and closing of the control valve is based on the detection signal of the pressure sensor.

[0011] As described above, the jet pipe includes a connecting pipe, one end of which is connected to the connecting part. Two branch pipes are provided at the end of the connecting pipe away from the connecting part. Each branch pipe is provided with a spring air pipe. A blowing pipe is provided at the end of the spring air pipe away from the branch pipe. The blowing pipes are symmetrically arranged inside both sides of the chip shield.

[0012] As described above, the surface of the chip shield is uniformly provided with a plurality of air blowing holes, all of which are connected to the air blowing pipe and are arranged at an angle.

[0013] In the above technical solution, the beneficial effects of the present invention are as follows: 1. The present invention has several shielding mechanisms that are independently distributed according to the tool positions of the tool magazine. Each shielding mechanism corresponds to the protection of a single tool position. During the tool change, when the tool is taken out or put into the tool position, the chip shield is passively raised and lowered with the insertion and removal of the tool. Only the channel of the currently operated tool position is opened, while the other tool positions remain closed. After the tool change is completed, the chip shield automatically resets and closes, completely isolating the waste chips splashed in the machining area. Moreover, the chip shield does not require an additional driving device and relies on the insertion and removal force of the tool itself to open and close. The action sequence is completely synchronized with the tool change process, with no delay error. The jetting mechanism of this invention is integrated into the shielding mechanism and is linked to the action of the chip shield. When the tool is placed into or removed from the tool position, or when the chip shield is about to open or close, the jetting mechanism is automatically activated and sprays high-pressure airflow at the cutting edge, tool holder, and other parts of the tool to clean the waste chips on the surface of the tool. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings. Figure 1 This is a first three-dimensional structural schematic diagram of the anti-chip tool magazine provided in an embodiment of the present invention; Figure 2 A three-dimensional structural diagram of the tool magazine, shielding mechanism, chip guard, control valve and air jet mechanism provided in another embodiment of the present invention; Figure 3 A three-dimensional structural diagram of the tool magazine, chip prevention component, shielding mechanism and control valve provided in another embodiment of the present invention; Figure 4 Provided for another embodiment of the present invention Figure 3 A magnified view of a portion of point M; Figure 5 Provided for another embodiment of the present invention Figure 3 A magnified view of N points; Figure 6 This is a three-dimensional structural diagram of the shielding mechanism and the jet pipe provided in another embodiment of the present invention; Figure 7 This is a cross-sectional view of the tool magazine, placement position, and shielding mechanism provided in another embodiment of the present invention; Figure 8 Provided for another embodiment of the present invention Figure 7 A magnified view of a portion of point S. Explanation of reference numerals in the attached figures: 1. Tool magazine; 10. Tool change position; 11. Placement position; 2. Chip prevention assembly; 20. Shielding mechanism; 200. Chip prevention plate; 2001. Pressure sensor; 2002. Control valve; 2003. Air blowing port; 201. Anti-detachment limit platform; 202. Positioning plate; 203. Limiting rod; 204. Buffer spring; 205. Mounting column; 21. Air jet mechanism; 210. Air jet pipe; 2100. Connecting pipe; 2101. Branch pipe; 2102. Spring air pipe; 2103. Air blowing pipe; 211. Rotary joint; 212. Air inlet pipe; 2120. Connecting part. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "side", "inner", "outer", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0016] like Figures 1-8 As shown in the figure, an embodiment of the present invention provides a chip-proof tool magazine for a drilling and tapping CNC machine tool, including a tool magazine 1, which is installed on the drilling and tapping CNC machine tool. A chip-proof component 2 is provided on the inner side of the tool magazine 1. The chip-proof component 2 includes several blocking mechanisms 20, which are installed inside the tool magazine 1. The blocking mechanisms 20 block waste chips from entering the tool magazine 1 through passively raised and lowered chip-proof plates 200. An air-jet mechanism 21 is provided on the blocking mechanism 20. The air-jet mechanism 21 can blow away chips from the turning tools placed in the tool magazine 1 to prevent waste chips from entering the tool magazine 1 with the turning tools.

[0017] In another embodiment of the present invention, the tool magazine 1 includes a tool changing position 10, and the tool magazine 1 is provided with a plurality of placement positions 11, the number of placement positions 11 being the same as the number of the blocking mechanisms 20; The specific implementation is as follows: Placement position 11 is the position for placing tools in tool magazine 1, and tool changing position 10 is the position for changing tools on the drilling and tapping CNC machine tool. When the chip-proof tool magazine 1 is in use, the blocking mechanism 20 can block the placement position 11 of tool magazine 1 through the passively raised and lowered chip-proof plate 200, reducing or even preventing the waste chips generated during drilling and tapping of the drilling and tapping CNC machine tool from entering the tool magazine 1; and during the tool changing process, the drilling and tapping CNC machine tool can squeeze the chip-proof plate 200 when the tool is put into tool magazine 1, so that the chip-proof plate 200 is passively raised and lowered, so that the chip-proof plate 200 can make way when the tool is placed into placement position 11 of tool magazine 1, so that the tool can be normally put into tool magazine 1. When the tool is taken out, the chip-proof plate 200 can passively rise and block placement position 11. In addition, when the chip-proof plate 200 is squeezed or released from squeezing, the air jet mechanism 21 can spray airflow onto the tool so that the airflow can clean the waste chips on the tool and prevent the waste chips on the tool from entering tool magazine 1.

[0018] In another embodiment of the present invention, the shielding mechanism 20 includes an anti-detachment limiting platform 201. A positioning plate 202 is provided on one side of the anti-detachment limiting platform 201. The positioning plate 202 is installed on the tool magazine 1 by bolts. A limiting rod 203 is slidably provided inside the anti-detachment limiting platform 201. The upper end of the limiting rod 203 is provided with the anti-chip plate 200 by thread engagement. A buffer spring 204 is provided between the limiting rod 203 and the anti-detachment limiting platform 201.

[0019] In another embodiment of the present invention, the middle part of the limiting rod 203 is a hollow structure, one end of the buffer spring 204 is disposed in the hollow structure of the limiting rod 203, and the anti-detachment limiting platform 201 is provided with a mounting post 205, the mounting post 205 is a hollow structure, the other end of the buffer spring 204 is disposed in the mounting post 205, and the mounting post 205 is slidably disposed in the hollow structure of the limiting rod 203; The specific implementation method is as follows: During the use of the tool magazine 1, the buffer spring 204 can keep the limiting rod 203 away from the anti-disengagement limiting table 201. At this time, the limiting rod 203 drives the anti-chip plate 200 to close the placement position 11 of the tool magazine 1, preventing the waste chips generated during drilling and tapping of the CNC drilling machine from entering the tool magazine 1. When the tool is replaced, the replaced tool presses down on the anti-chip plate 200 at the empty placement position 11 of the tool magazine 1. At this time, the downward pressure of the tool compresses the buffer spring 204 through the anti-chip plate 200, causing the limiting rod 203 to drive the anti-chip plate 200 to move down along the mounting column 205, thereby enabling the anti-chip plate 200 to move down to avoid the tool, so that the anti-chip plate 200 can be smoothly put into the tool magazine 1. 0. The chip shield 200 is used to block chips from the placement position 11. The movement of the chip shield 200 will trigger the jet mechanism 21 on it. The high-pressure airflow from the jet mechanism 21 blows away the chips on the tool, preventing the chips from entering the tool magazine 1. When the tool is changed, the tool is removed from the placement position 11 and detached from the tool magazine 1. When the tool is removed from the chip shield 200, the elastic potential energy of the buffer spring 204 is released. The buffer spring 204 can push the chip shield 200 to spring back and reset. At this time, the anti-detachment limit plate can limit the limit rod 203 to prevent the chip shield 200 and the limit rod 203 from popping out excessively due to the elastic force of the buffer spring 204, ensuring that the limit rod 203 and the chip shield 200 return to the preset chip shield position.

[0020] In another embodiment of the present invention, the jet mechanism 21 includes a plurality of jet pipes 210, each of the chip-proof plates 200 is connected to one of the jet pipes 210, a rotary joint 211 is provided in the middle of the tool magazine 1, an air inlet pipe 212 is rotatably provided on the rotary joint 211, a plurality of connecting parts 2120 are uniformly provided along the circumference of the end of the air inlet pipe 212 away from the rotary joint 211, the jet pipe 210 is connected to the air inlet pipe 212 through the connecting parts 2120, and there is a dynamic seal between the air inlet pipe 212 and the rotary joint 211.

[0021] In another embodiment of the present invention, a pressure sensor 2001 is provided on the chip shield 200, and a control valve 2002 is provided on each of the jet pipes 210. The opening and closing of the control valve 2002 is based on the detection signal of the pressure sensor 2001.

[0022] In another embodiment of the present invention, the jet pipe 210 includes a connecting pipe 2100, one end of which is connected to the connecting part 2120. Two branch pipes 2101 are provided at the end of the connecting pipe 2100 away from the connecting part 2120. Each branch pipe 2101 is provided with a spring air pipe 2102. An air blowing pipe 2103 is provided at the end of the spring air pipe 2102 away from the branch pipe 2101. The air blowing pipes 2103 are symmetrically arranged inside both sides of the chip shield 200. The specific implementation method is as follows: The rotary joint 211 is connected to an external air pump, which supplies air to the air inlet pipe 212. When the tools in the tool magazine 1 are placed, the tools will press against the chip guard 200. At this time, the tools simultaneously press against the pressure sensor 2001 on the chip guard 200. When the pressure sensor 2001 detects the pressure change, it sends a signal. At this time, the control valve 2002 on the air jet pipe 210 connected to the pressed chip guard 200 is opened, so that the air jet pipe 210 connected to the pressed chip guard 200 is opened. 10. High-pressure airflow is sprayed onto the tools placed in the tool magazine 1. Specifically, when the tools are placed, the pressure sensor 2001 on the chip guard 200 controls the control valve 2002 connected to the chip guard 200 to open. At this time, the external air pump simultaneously supplies air to the rotary joint 211 and the air inlet pipe 212. The high-pressure airflow is delivered into the connecting pipe 2100 through the connection part 2120 of the air inlet pipe 212, and finally delivered to the branch pipe 2101. The airflow flows through the distribution of the branch pipe 2101 to the spring air pipe 2102 and enters the blowing pipe 2103. This allows the air blower 2103 to spray high-pressure airflow onto the cutting tool, so that the high-pressure airflow from the air blower 2103 can blow away the chips on the cutting tool. When the cutting tool is removed, the cutting tool gradually moves away from the chip shield 200. At this time, the pressure sensor 2001 on the chip shield 200 can also detect the pressure change, so that the control valve 2002 opens based on the signal from the pressure sensor 2001, so as to control the external air pump to supply air to the air inlet pipe 212. The high-pressure airflow is delivered into the connecting pipe 2100 through the connecting part 2120 of the air inlet pipe 212. The airflow is delivered and ultimately conveyed to the branch pipe 2101. The airflow is distributed through the branch pipe 2101 to the spring air pipe 2102 and enters the blowing pipe 2103, so that the blowing pipe 2103 sprays high-pressure airflow onto the tool, so that the high-pressure airflow sprayed from the blowing pipe 2103 can blow away the waste chips on the tool again; and the spring air pipe 2102 can extend or compress when the chip plate 200 rises or falls, so that the jet mechanism 21 can adapt to the movement of the chip plate 200 and ensure that the jet mechanism 21 can always spray air to clean the tool.

[0023] In another embodiment of the present invention, a plurality of air holes 2003 are uniformly provided on the surface of the chip shield 200, and the air holes 2003 are all connected to the air pipe 2103, and the air holes 2003 are arranged at an angle. The specific implementation method is as follows: when the high-pressure airflow is ejected from the air blowing pipe 2103, the high-pressure airflow can enter the air blowing hole 2003 from the air blowing pipe 2103 and finally be ejected from the air blowing hole 2003, so that the high-pressure airflow can blow the waste chips on the tool off the tool, reducing or even avoiding the waste chips entering the tool magazine 1.

[0024] Working principle: Placement position 11 is the location for placing tools in tool magazine 1, and tool changing position 10 is the location for changing tools on the drilling and tapping CNC machine tool. When the chip-proof tool magazine 1 is in use, the blocking mechanism 20 can block placement position 11 of tool magazine 1 through the passively raised and lowered chip-proof plate 200, reducing or even preventing the entry of chips generated during drilling and tapping of the drilling and tapping CNC machine tool into tool magazine 1; and during the tool changing process, the drilling and tapping CNC machine tool can squeeze the chip-proof plate 200 when the tool is placed into tool magazine 1, so that the chip-proof plate 200 is passively raised and lowered, so that when the tool is placed into placement position 11 of tool magazine 1, the chip-proof plate 200 can... The chip guard 200 is positioned to allow the tool to be properly inserted into the tool magazine 1. When the tool is removed, the chip guard 200 passively rises and blocks the placement position 11. Furthermore, when the chip guard 200 is pressed or released, the air jet mechanism 21 sprays air towards the tool to clean away chips and prevent them from entering the tool magazine 1. Specifically, during use of the tool magazine 1, the buffer spring 204 allows the limiting rod 203 to move away from the anti-disengagement limiting platform 201. At this time, the limiting rod 203 drives the chip guard 200 to move away from the placement position 11 of the tool magazine 1. The system is enclosed to prevent chips generated during drilling on the CNC drilling machine from entering the tool magazine 1. When changing tools, the removed tool presses down on the anti-chip plate 200 at the empty placement position 11 in the tool magazine 1. The downward pressure from the tool compresses the buffer spring 204 through the anti-chip plate 200, causing the limit rod 203 to move the anti-chip plate 200 downwards along the mounting post 205. This allows the anti-chip plate 200 to move downwards to avoid chipping, ensuring the tool can be smoothly placed into the tool magazine 1 while simultaneously shielding the placement position 11 from chips. The movement of the anti-chip plate 200 synchronously triggers the air jet mechanism 2 on it. 1. The high-pressure airflow ejected by the jet mechanism 21 blows away the chips on the tool, preventing the chips from entering the tool magazine 1. When changing the tool, the tool is removed from the tool magazine 1 from the placement position 11. When the tool is removed from the chip guard 200, the elastic potential energy of the buffer spring 204 is released. The buffer spring 204 can push the chip guard 200 to spring back and reset. At this time, the anti-detachment limit plate can limit the limit rod 203 to prevent the chip guard 200 and the limit rod 203 from popping out excessively due to the elastic force of the buffer spring 204, ensuring that the limit rod 203 and the chip guard 200 return to the preset chip guard position.Rotary joint 211 is connected to an external air pump, which supplies air to the air inlet pipe 212. When tools are placed in the tool magazine 1, the tools compress the chip shield 200. Simultaneously, the tools compress the pressure sensor 2001 on the chip shield 200. When the pressure sensor 2001 detects a pressure change, it sends a signal. At this time, the control valve 2002 on the air jet pipe 210 connected to the compressed chip shield 200 is opened, causing the air jet pipe 210 to spray high-pressure airflow onto the tools placed in the tool magazine 1. Specifically, when the tools are placed, the chip shield... The pressure sensor 2001 on the chip plate 200 controls the control valve 2002 connected to the chip plate 200 to open. At this time, the external air pump simultaneously supplies air to the rotary joint 211 and the air inlet pipe 212. The high-pressure airflow is delivered to the connecting pipe 2100 through the connection part 2120 of the air inlet pipe 212, and finally to the branch pipe 2101. The airflow is distributed through the branch pipe 2101 to the spring air pipe 2102 and enters the blowing pipe 2103, so that the blowing pipe 2103 sprays the high-pressure airflow onto the tool, so that the high-pressure airflow sprayed from the blowing pipe 2103 blows away the chips on the tool; the tool is then removed. As the cutting tool moves away from the chip shield 200, the pressure sensor 2001 on the chip shield 200 detects the pressure change, causing the control valve 2002 to open based on the signal from the pressure sensor 2001. This controls the external air pump to supply air to the inlet pipe 212. The high-pressure airflow passes through the connection 2120 of the inlet pipe 212 into the connecting pipe 2100, and finally into the branch pipe 2101. The airflow then flows through the distribution channel of the branch pipe 2101 to the spring air pipe 2102 and enters the blowing pipe 2103, causing the blowing pipe 2103 to spray the high-pressure airflow onto the cutting tool for blowing. The high-pressure airflow ejected from pipe 2103 further removes chips from the tool; and the spring-loaded air pipe 2102 can extend or compress when the chip shield 200 rises or falls, so that the air jet mechanism 21 adapts to the movement of the chip shield 200, ensuring that the air jet mechanism 21 can always clean the tool with air jets; and when the high-pressure airflow is ejected from the air pipe 2103, the high-pressure airflow can enter the air hole 2003 from the air pipe 2103 and finally be ejected from the air hole 2003, so that the high-pressure airflow can blow the chips off the tool, reducing or even preventing chips from entering the tool magazine 1.

[0025] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A chip breaking tool magazine for drilling and tapping CNC machine, comprising a tool magazine (1) which is provided on a drilling and tapping CNC machine, characterized in that, The tool magazine (1) is provided with a chip-proof component (2) on its inner side. The chip-proof component (2) includes several blocking mechanisms (20). The blocking mechanisms (20) are located inside the tool magazine (1). The blocking mechanisms (20) block the entry of waste chips into the tool magazine (1) through a passively raised and lowered chip-proof plate (200). The blocking mechanism (20) is provided with an air-jet mechanism (21). The air-jet mechanism (21) can blow chips off the cutting tools placed in the tool magazine (1) to prevent waste chips from entering the tool magazine (1) along with the cutting tools.

2. A chip breaking tool magazine for a numerically controlled machine tool according to claim 1, characterized in that, The tool magazine (1) includes a tool changing position (10), and the tool magazine (1) is provided with a number of placement positions (11), the number of placement positions (11) being the same as the number of the blocking mechanism (20).

3. A chip breaking tool magazine for a CNC machine tool according to claim 1, characterized in that, The shielding mechanism (20) includes an anti-detachment limiting platform (201), a positioning plate (202) is provided on one side of the anti-detachment limiting platform (201), the positioning plate (202) is installed on the tool magazine (1) by bolts, and a limiting rod (203) is provided in the anti-detachment limiting platform (201) in a sliding manner. The upper end of the limiting rod (203) is provided with the anti-chip plate (200) by thread engagement, and a buffer spring (204) is provided between the limiting rod (203) and the anti-detachment limiting platform (201).

4. A chip-breaker tool magazine for use in a numerically controlled machine tool according to claim 3, characterized in that The middle part of the limiting rod (203) is a hollow structure. One end of the buffer spring (204) is disposed in the hollow structure of the limiting rod (203). The anti-detachment limiting platform (201) is provided with a mounting post (205). The mounting post (205) is a hollow structure. The other end of the buffer spring (204) is disposed in the mounting post (205). The mounting post (205) is disposed in the hollow structure of the limiting rod (203) in a sliding manner.

5. A chip breaking tool magazine for a numerically controlled machine tool according to claim 3, characterized in that, The jet mechanism (21) includes several jet pipes (210), each of the chip shields (200) is connected to one of the jet pipes (210), a rotary joint (211) is provided in the middle of the tool magazine (1), an air inlet pipe (212) is provided on the rotary joint (211) in a rotatable manner, and several connecting parts (2120) are evenly provided around the end of the air inlet pipe (212) away from the rotary joint (211), the jet pipe (210) is connected to the air inlet pipe (212) through the connecting parts (2120), and there is a dynamic seal between the air inlet pipe (212) and the rotary joint (211).

6. A chip-resistant tool magazine for a drilling and tapping CNC machine tool according to claim 5, characterized in that, A pressure sensor (2001) is provided on the chip shield (200), and a control valve (2002) is provided on each of the jet pipes (210). The opening and closing of the control valve (2002) is based on the detection signal of the pressure sensor (2001).

7. A chip-resistant tool magazine for a drilling and tapping CNC machine tool according to claim 5, characterized in that, The jet pipe (210) includes a connecting pipe (2100), one end of which is connected to the connecting part (2120). Two branch pipes (2101) are provided at the end of the connecting pipe (2100) away from the connecting part (2120). Each branch pipe (2101) is provided with a spring air pipe (2102). An air blowing pipe (2103) is provided at the end of the spring air pipe (2102) away from the branch pipe (2101). The air blowing pipes (2103) are symmetrically arranged inside both sides of the chip shield (200).

8. A chip-resistant tool magazine for a drilling and tapping CNC machine tool according to claim 7, characterized in that, The surface of the chip shield (200) is uniformly provided with a plurality of air holes (2003), all of which are connected to the air pipe (2103) and are arranged at an angle.

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