A power-swap intelligent vibration-detecting milling cutter based on a magnetic structure

Abstract

The invention provides a power-swappable intelligent vibration-measuring milling cutter based on a magnetic structure. A three-dimensional acceleration sensor is installed at the central through hole of the tool handle. The measured vibration data is processed by a microcontroller and then wirelessly transmitted to the host computer for display, storage and analysis. At the same time, in order to solve the shortcomings of the intelligent tool's weak battery life and the need for repeated shutdowns for charging, an independent power supply part is designed, which can quickly replace the power supply through the magnetic structure, thereby minimizing downtime. The intelligent vibration-measuring milling cutter can quickly replenish the power supply, measure the vibration of the tool during processing in real time, and wirelessly transmit it to the host computer for display and storage. After analyzing the information, it can realize functions such as tool status monitoring, tool wear prediction, and real-time vibration monitoring.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent vibration measurement in mechanical processing, and in particular to a power-swap intelligent vibration measurement milling cutter based on a magnetic attraction structure. Background Art

[0002] With the development of technologies such as sensors, communications, electronic information, and computers, integrating them with other fields to form cross-cutting technologies is a major focus of current scientific research and engineering technology development, and can greatly enhance the overall level of this field. At the same time, with the introduction of the concept of intelligent manufacturing, more and more research institutions are integrating sensors into cutting tools and transmitting them to a host computer via communication technology. The collected signals are analyzed based on deep learning, which can monitor the cutting state of the tool in real time, identify abnormal conditions, predict tool wear and its remaining life, and so on, thus making cutting tools intelligent.

[0003] Milling cutters are the most widely used tool in the manufacturing of critical components, making research on intelligent milling cutters a key focus. Furthermore, cutting vibrations can intuitively reflect the machining process and contain potential information such as chatter and tool wear. Therefore, intelligent milling cutters based on vibration sensors have become a key focus of intelligent milling cutter research.

[0004] Because they rotate at high speeds during machining, smart milling cutters are typically self-contained and utilize wireless communication for data transmission. Therefore, their design requires independent power supply considerations. As standalone devices, they require recharging after depleting their battery. This results in machine downtime and frequent tool disassembly and installation, significantly reducing the effective utilization and machining efficiency of the smart milling cutter.

[0005] Therefore, it is of great significance to develop a power-swap intelligent vibration-measuring milling cutter based on a magnetic attraction structure. Summary of the Invention

[0006] The purpose of the present invention is to provide a power-swap intelligent vibration measuring milling cutter based on a magnetic attraction structure to solve the problems existing in the prior art.

[0007] The technical solution adopted to achieve the purpose of the present invention is as follows: a power-swap intelligent vibration-measuring milling cutter based on a magnetic attraction structure, including a tool clamping part, a power supply part, a signal processing part, a tool holder and a sensor circuit board.

[0008] The tool clamping portion is disposed at the upper end of the shank. The power supply and signal processing portion are sleeved onto the shank. A positioning boss extends outward from the outer wall of the lower end of the shank. The shank is provided with a receiving cavity and a central through hole in sequence along the axial direction. A sensor circuit board is disposed at the junction of the receiving cavity and the central through hole. The shank is provided with radial through holes. The radial through holes connect the central through hole with the outside world.

[0009] The tool clamping portion includes an end mill, a nut, and a retaining ring. The retaining ring is installed in the receiving cavity. The retaining ring clamps the end mill. The nut is used to secure the end mill and retaining ring. The nut is threadedly fastened to the upper end of the tool handle.

[0010] The power supply includes a battery compartment and batteries. The battery compartment is a cylindrical structure with a battery accommodating cavity enclosed within. The battery compartment includes a bushing, a compartment wall, and a sealing plate. The bushing serves as the top and inner walls, the compartment wall serves as the outer wall, and the sealing plate serves as the bottom wall, collectively forming the battery compartment. A spring contact male connector is provided on the lower surface of the sealing plate. The battery is accommodated in the battery accommodating cavity. The battery is connected to the spring contact male connector. The bushing, compartment wall, and sealing plate together enclose the battery accommodating cavity. The compartment wall is made of a soft magnetic material. The bushing and sealing plate are made of a non-magnetic material. Several blind holes are provided on the outer circumference of the compartment wall. Magnetic isolation sleeves are disposed in the blind hole grooves. The isolation sleeves cover the bottom and lower sidewalls of the blind hole grooves. The isolation sleeves are made of a non-magnetic material. The isolation sleeves and the blind hole grooves enclose a magnet sliding channel. The magnet and return spring are disposed in the magnet sliding channel. The magnet blocks the opening of the magnet sliding channel. One end of the return spring is connected to the magnet, and the other end is connected to the magnetic isolation sleeve. Pressing the magnet allows the magnet to move in the magnet sliding channel. The spring is used to reset the magnet after being pressed.

[0011] The signal processing section is an annular cylindrical structure. It includes a magnetic ring, a magnetic isolation ring, a circuit board base, and a base, stacked in sequence from top to bottom. The base rests on a positioning boss. A signal processing circuit board is fixed to the circuit board base. The signal processing circuit board is connected to the sensor circuit board via a signal line. The signal line passes through the central through hole and radial through holes in sequence. The magnetic isolation ring is made of non-magnetic material. It has a stepped shape with a lower outer ring and a higher inner ring. A spring contact female is provided on the upper surface of the magnetic isolation ring. The signal processing circuit board is connected to the spring contact female. The magnetic ring is nested in the outer ring of the magnetic isolation ring. The magnetic ring is made of soft magnetic material. The power supply section rests above the signal processing section. The spring contact female is connected to the spring contact male. The battery supplies power to the signal processing circuit board via the spring contact male and spring contact female. The magnetic ring adheres to the chamber wall.

[0012] During machining, the end mill generates vibrations when cutting a workpiece. This vibration is transmitted through the tool tip to the tool holder, where it causes a sensor circuit board attached to the tool holder to detect acceleration. The signal generated by the sensor circuit board is transmitted via a signal line to a signal processing circuit board. The signal processing circuit board processes the signal and transmits the data to a host computer.

[0013] When the battery is exhausted and needs to be replaced, press the magnet, the contact area between the side of the magnet and the soft magnetic wall of the warehouse decreases, and the contact area with the non-magnetic magnetic isolation sleeve increases, which significantly reduces the magnetism of the warehouse wall and allows it to detach from the magnetic ring.

[0014] Furthermore, the bushing is fixed to the chamber wall via bushing screws. The sealing plate is fixed to the bushing via sealing plate screws.

[0015] Furthermore, the magnetic isolation ring and circuit board base are fixed to the base via long screws. The base is fixed to the upper surface of the positioning boss of the handle via base screws. The magnetic isolation ring and circuit board base are fixed to the base via long screws. The magnetic ring is fixed to the magnetic isolation ring via radial set screws.

[0016] Furthermore, the battery is a rechargeable arc-shaped lithium battery. A plurality of batteries are connected in series and evenly attached to the inner circumference of the warehouse wall.

[0017] Furthermore, through holes are evenly distributed on the signal processing circuit board. After the circuit board screws are screwed into the hexagonal copper pillars at the through holes, the hexagonal copper pillars are fixed to the circuit board base using nuts.

[0018] Furthermore, the chamber wall is made of manganese-zinc ferrite or nickel-zinc ferrite, the magnetic isolation sleeve is made of aluminum alloy or plastic, and the magnet is made of aluminum-nickel-cobalt permanent magnet alloy or neodymium-iron-boron permanent magnet alloy.

[0019] Furthermore, the tool handle is obtained by secondary processing of the BT50-ER40 standard tool handle.

[0020] Furthermore, the tool handle and base are provided with corresponding through-holes for installing proximity switches. These proximity switches are connected in series in the circuit. When the tool is mounted on the spindle and ready for machining, both switches detect the flat key and close, thereby opening the data acquisition circuit. However, when the tool handle is placed in a tool holder or tool magazine, at most one of the switches is closed, and the circuit cannot be opened.

[0021] Furthermore, the circuit board base is made of a material that is both light-transmitting and electromagnetic-transmitting. It has power routing holes for connecting the signal processing circuit board and the spring contact female connector, as well as antenna routing holes for connecting the tri-color LED and the FPC antenna. Both the power routing holes and the antenna routing holes are straight-slot through-holes. The tri-color LED is used to display the battery status. The FPC antenna is used to transmit Wi-Fi signals.

[0022] Furthermore, the FPC antenna can prevent interference from the metal base on Wi-Fi signals, thereby transmitting wireless signals through the electromagnetic wave-transparent circuit board base. The tri-color LED can display different colors of light according to the remaining power of the power supply. For example, green indicates a remaining power of more than 75%, yellow indicates a remaining power of 25% to 75%, and red indicates a remaining power of less than 25%. If it is off, the power is exhausted.

[0023] The technical effects of the present invention are unquestionable:

[0024] A. Simple machining of planes and threaded holes on the existing BT50-ER40 standard milling cutter structure significantly reduces the manufacturing cost of the toolholder and the degree of reduction in its rigidity. Furthermore, through structural design, the signal processing, power supply, and vibration sensor are integrated into the toolholder, forming a compact overall structure while wirelessly transmitting signals without affecting the normal use of the tool.

[0025] B. It can collect the three-dimensional acceleration of the milling cutter in real time during the cutting process. After processing by the microcontroller, it can be wirelessly transmitted to the host computer for subsequent processing and analysis. At the same time, to address the short battery life of wireless smart tools and the need for downtime and charging, a split design was proposed. It can quickly replace the power supply through a magnetic structure, providing a new idea for the continuous and normal use of smart tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall appearance of the intelligent milling cutter;

[0027] Figure 2 This is a cross-sectional view of the tool clamping part;

[0028] Figure 3 This is a cross-sectional view of the power supply;

[0029] Figure 4 This is a cross-sectional diagram of the signal processing part;

[0030] Figure 5 A cross-sectional view of the installation of the signal processing circuit board and the magnetic ring;

[0031] Figure 6 This is a schematic diagram of how to install and remove the power supply;

[0032] Figure 7 This is the working principle diagram of the proximity switch group;

[0033] Figure 8 This is a schematic diagram of the sensor circuit board installation and wiring;

[0034] Figure 9 Schematic diagram of the power supply, antenna and power display LED wiring;

[0035] Figure 10 This is the strain cloud diagram for ANSYS simulation.

[0036] In the figure: tool clamping part 001, power supply part 002, signal processing part 003, tool handle 004, proximity switch 005, radial through hole 006, sensor circuit board 007, end mill 101, nut 102, retaining ring 103, bushing 201, bushing screw 202, magnet 203, magnetic isolation sleeve 204, spring contact male head 205, sealing plate 206, chamber wall 207, sealing plate screw 208, arc-shaped lithium battery 209, return spring, magnetic ring 301, spring contact female head 302, magnetic isolation ring 303, circuit board base 304, base 305, base screw 306, circuit board screw 307, signal processing circuit board 308, hexagonal copper column 309, nut 310, long screw 311, set screw 312, three-color LED 313, power wiring hole 314, antenna wiring hole 315, FPC antenna 316. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the following examples, but it should not be understood that the scope of the present invention is limited to the following examples. Without departing from the above technical ideas of the present invention, various substitutions and modifications can be made according to common technical knowledge and customary means in the art, and all should be included in the scope of protection of the present invention. Example 1

[0038] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8 This embodiment provides a power-swap intelligent vibration measuring milling cutter based on a magnetic attraction structure, including a tool clamping part 001, a power supply part 002, a signal processing part 003, a tool holder 004 and a sensor circuit board 007.

[0039] The tool clamping portion 001 is disposed at the upper end of the shank 004. The power supply portion 002 and the signal processing portion 003 are sleeved on the shank of the shank 004. A positioning boss extends outward from the outer wall of the lower end of the shank 004. The shank 004 is provided with a receiving cavity and a central through hole in sequence along the axial direction. A sensor circuit board 007 is disposed at the junction of the receiving cavity and the central through hole. The shank 004 is provided with a radial through hole 006. The radial through hole 006 connects the central through hole with the outside world.

[0040] The tool clamping portion 001 includes an end mill 101, a nut 102, and a retaining spring 103. The retaining spring 103 is installed in the receiving cavity. The retaining spring 103 clamps the end mill 101. The nut 102 is used to secure the end mill 101 and the retaining spring 103. The nut 102 is threadedly connected to the upper end of the tool handle 004.

[0041] The power supply portion 002 includes a battery compartment and a battery 209. The battery compartment is a cylindrical structure with a battery receiving cavity enclosed therein. The battery compartment includes a bushing 201, a compartment wall 207, and a sealing plate 206. The bushing 201 serves as the top and inner walls, the compartment wall 207 serves as the outer wall, and the sealing plate 206 serves as the bottom wall, together forming the battery compartment. A spring contact male connector 205 is provided on the lower surface of the sealing plate 206. The battery 209 is accommodated in the battery receiving cavity. The battery 209 is connected to the spring contact male connector 205. The bushing 201, compartment wall 207, and sealing plate 206 together enclose the battery receiving cavity. The compartment wall 207 is made of a soft magnetic material. The bushing 201 and sealing plate 206 are made of a non-magnetic material. Several blind holes are provided on the outer circumference of the compartment wall 207. A magnetic isolation sleeve 204 is arranged in each of the blind hole grooves. The magnetic isolation sleeve 204 covers the bottom and lower side wall of the blind hole groove. The magnetic isolation sleeve 204 is made of non-magnetic material. The magnetic isolation sleeve 204 and the blind hole groove enclose a magnet sliding channel. The magnet 203 and the reset spring are arranged in the magnet sliding channel. The magnet 203 blocks the opening of the magnet sliding channel. One end of the reset spring is connected to the magnet 203, and the other end is connected to the magnetic isolation sleeve 204. Pressing the magnet 203 allows the magnet 203 to move in the magnet sliding channel. The spring is used to reset the magnet 203 after being pressed.

[0042] The signal processing unit 003 is an annular cylindrical structure. It comprises a magnetic ring 301, a magnetic isolation ring 303, a circuit board base 304, and a base 305, stacked in sequence from top to bottom. The base 305 rests on a positioning boss. A signal processing circuit board 308 is secured to the circuit board base 304. The signal processing circuit board 308 is connected to the sensor circuit board 007 via signal lines, which pass through the central through-hole and radial through-holes 006. The magnetic isolation ring 303 is made of non-magnetic material. It has a stepped shape, with the outer ring lower and the inner ring higher. A spring contact female connector 302 is provided on the upper surface of the magnetic isolation ring 303. The signal processing circuit board 308 is connected to the spring contact female connector 302. The magnetic ring 301 is nested within the outer ring of the magnetic isolation ring 303. The magnetic ring 301 is made of soft magnetic material. The power supply unit 002 rests above the signal processing unit 003. The spring contact female connector 302 is connected to the spring contact male connector 205. The battery 209 supplies power to the signal processing circuit board 308 via the spring contact male connector 205 and the spring contact female connector 302. The magnetic ring 301 is attracted to the chamber wall 207.

[0043] During machining, the end mill 101 generates vibrations as it cuts the workpiece. This vibration is transmitted through the tool tip to the tool holder 004, where it is detected by the sensor circuit board 007 mounted thereon. The signal generated by the sensor circuit board 007 is transmitted via a signal line to the signal processing circuit board 308. After processing the signal, the signal processing circuit board 308 transmits the data to the host computer.

[0044] See also Figure 6 When the battery 209 is exhausted and needs to be replaced, the magnet 203 is pressed, and the contact area between the side of the magnet 203 and the soft magnetic warehouse wall 207 is reduced, while the contact area with the non-magnetic magnetic isolation sleeve 204 is increased, so that the magnetism of the warehouse wall 207 is significantly reduced, and the magnetic ring 301 can be separated.

[0045] This embodiment designs an intelligent milling cutter with a quickly disassembled power supply part based on a magnetic structure, which can directly replace a fully charged power supply after the power supply is exhausted, thereby realizing rapid energy replenishment. This embodiment provides a power-swappable intelligent vibration measuring milling cutter based on a magnetic structure, which can measure the three-dimensional vibration signal during processing in real time and transmit it wirelessly to the host computer for subsequent analysis. This embodiment is based on the existing milling cutter structure, and processes structures such as planes, through holes and threaded holes, and compactly integrates structures such as sensors, circuit boards, and power supplies into one, ensuring its overall rigidity. At the same time, based on the magnetic structure, an independent and detachable power supply structure is designed in a split manner to realize rapid replenishment of the power supply. Example 2

[0046] The main contents of this embodiment are the same as those of embodiment 1, wherein the microcontroller module on the signal processing circuit board 308 processes the signal and transmits the data to the WIFI module via SPI; the WIFI module transmits the data to the host computer in the form of electromagnetic waves based on the TCP / IP protocol. Example 3

[0047] The main contents of this embodiment are the same as those of embodiment 1 or 2, wherein the bushing 201 is fixed to the bin wall 207 by a bushing screw 202. The sealing plate 206 is fixed to the bushing 201 by a sealing plate screw 208. The magnetic isolation ring 303 and the circuit board base 304 are fixed to the base 305 by a long screw 311. The base 305 is fixed to the upper surface of the positioning boss of the shank 004 by a base screw 306. The magnetic isolation ring 303 and the circuit board base 304 are fixed to the base 305 by a long screw 311. The magnetic ring 301 is fixed to the magnetic isolation ring 303 by a radial set screw 312. The battery 209 is a rechargeable arc-shaped lithium battery. Several batteries 209 are connected in series and evenly adhered to the inner circumference of the bin wall 207. The battery 209 is powered by a spring contact male connector 205 and is also charged by the same male connector.

[0048] In this embodiment, a three-dimensional acceleration sensor is installed at the center through hole of the tool handle. The measured vibration data is processed by the microcontroller and then wirelessly transmitted to the host computer for display, storage and analysis. At the same time, in order to solve the shortcomings of the intelligent tool's weak battery life and the need for repeated shutdown and charging, an independent power supply part is designed, which can quickly replace the power supply through a magnetic structure, thereby minimizing downtime. This intelligent vibration measuring milling cutter can quickly replenish the power supply, measure the vibration of the tool during processing in real time, and wirelessly transmit it to the host computer for display and storage. After analyzing this information, it can realize functions such as tool status monitoring, tool wear prediction and real-time vibration monitoring. Example 4

[0049] See also Figure 7 This embodiment primarily shares the same features as Example 1, except that the tool handle 004 and base 305 are provided with corresponding through-holes for mounting a proximity switch 005. This proximity switch 005 is connected in series in the circuit. When the tool is mounted on the spindle and ready for machining, both switches detect the flat key and close, activating the data acquisition circuit. However, when the tool handle 004 is placed in a tool holder or magazine, only one of the switches is closed, preventing the circuit from being activated. Example 5

[0050] See also Figure 2 The main contents of this embodiment are the same as those of embodiment 1, wherein the tool clamping part 001 can be adapted to the ER40 series retaining spring and can clamp end mills of different sizes and models according to the application. Example 6

[0051] See also Figure 3 The main contents of this embodiment are the same as any one of Embodiments 1 to 5, wherein the chamber wall 207 is made of manganese-zinc ferrite or nickel-zinc ferrite. The magnetic isolation sleeve 204 is made of aluminum alloy or plastic. The magnet 203 is made of a permanent magnetic material, such as an aluminum-nickel-cobalt permanent magnet alloy or a neodymium-iron-boron permanent magnet alloy, and the outer side of its upper end surface is chamfered. The bushing 201 is made of a non-magnetic material. The sealing plate 206 is made of a non-magnetic material.

[0052] Blind holes for installing a reset spring are provided on the magnet 203 and the magnetic isolation sleeve 204. The reset spring is used to reset the magnet 203 after being pressed. The bushing 201 is fixed to the bin wall 207 by a bushing screw 202. The other end face of the bushing 201 is fixed to the sealing plate 206 by a sealing plate screw 208. The inner side of the bushing 201 has a corresponding planar structure, which transmits torque after being assembled with the tool handle 004 to avoid relative sliding due to insufficient torque provided by the magnetic attraction structure. A protrusion structure is provided on the outer side of the contact surface between the bushing 201 and the magnet 203, which cooperates with the chamfer of the magnet 203 to limit the position. The outer shape of the sealing plate 206 completely overlaps with the lower end face of the bin wall 207 to achieve sealing of the bin wall 207. The sealing plate 206 has a through hole for installing the spring contact male head 205. Example 7

[0053] See also Figure 4 and Figure 5 The main contents of this embodiment are the same as any one of Embodiments 1 to 6, wherein the base 305 is fixed to the end surface of the handle 004 by a base screw 306. The base 305 has a through hole corresponding to the location where the proximity switch 005 is installed. The base 305 is made of metal to ensure its rigidity.

[0054] The signal processing circuit board 308 is provided with evenly distributed through holes. After the circuit board screw 307 is screwed into the hexagonal copper column 309 through the through hole, its threaded portion passes through the corresponding through hole of the circuit board base 305, and the nut 310 is screwed into the threaded portion to fix the circuit board.

[0055] The magnetic isolation ring 303 is made of non-magnetic material and is in a stepped shape with the outer ring lower and the inner ring higher. A through hole corresponding to the circuit board base 305 is provided on the end face of the outer ring, and the two are fixed to the base 305 by long screws 311. The side face of the inner ring is provided with radial threaded holes.

[0056] The magnetic ring 301 is made of soft magnetic material and has evenly distributed through holes. The magnetic ring 301 is assembled by screwing the set screws 312 into the threaded holes on the side of the magnetic isolation ring 303, and then the set screws 312 are screwed out to fix the magnetic ring 301.

[0057] In addition to transmitting force and fixing parts, the bushing 201 and the magnetic isolation ring 303 also isolate the magnetic fields of the magnetized chamber wall 207 and the magnetic ring 301 in the radial and axial directions of the shank 004 due to their non-magnetic material properties, so as to prevent the magnetic field from affecting the inductive elements in the circuit. Example 8

[0058] The main contents of this embodiment are the same as any one of embodiments 1 to 7, wherein, see Figure 9 The circuit board base 305 is made of a material that is both light-transmissive and electromagnetic-transmissive. The circuit board base 305 has a power wiring hole 314 for connecting the signal processing circuit board 308 and the spring contact female connector 302, as well as an antenna wiring hole 315 for connecting the tri-color LED 313 and the FPC antenna 316. Both the power wiring hole 314 and the antenna wiring hole 315 are straight-slot through-holes. The tri-color LED 313 is used to display the battery status. The FPC antenna 316 is used to transmit Wi-Fi signals. The FPC antenna 316 prevents interference with Wi-Fi signals from the metal base 305, thereby transmitting the wireless signal through the electromagnetic-transmissive circuit board base 305. The tri-color LED 313 can display different colors depending on the remaining power level. For example, green indicates a remaining power level of more than 75%, yellow indicates a remaining power level of 25% to 75%, and red indicates a remaining power level of less than 25%. If it is off, the battery is depleted. Example 9

[0059] The main content of this embodiment is the same as any one of Examples 1 to 8, wherein the strain simulation of the prototype BT50-ER40 tool holder and the tool holder 004 after secondary processing is performed based on the "static structure" analysis system of ANSYS Workbench. The tapered shank of the two tool holders is set as a fixed support, and orthogonal radial force and axial force are applied to the head end. After solving, the equivalent elastic strain of the two tool holders is obtained, and the results are: the maximum strain of the BT50-ER40 tool holder is 1.9392e-5, and the maximum strain of the tool holder 004 after secondary processing is 1.9655e-5. As shown in Formula 1, under the same fixing conditions and force conditions, the maximum equivalent elastic strain of the tool holder 004 is only increased by 1.36% compared with the prototype tool holder. This shows that the structural design does not significantly weaken the overall stiffness of the tool holder and can be used for actual processing.

[0060] (1)

Claims

1. A power-swappable intelligent vibration-measuring milling cutter based on a magnetic attraction structure, characterized in that: It includes a tool clamping part (001), a power supply part (002), a signal processing part (003), a tool handle (004) and a sensor circuit board (007); The tool clamping part (001) is arranged on the upper end of the tool handle (004); the power supply part (002) and the signal processing part (003) are sleeved on the handle of the tool handle (004); a positioning boss is extended outward from the outer wall of the lower end of the tool handle (004); the tool handle (004) is provided with a receiving cavity and a central through hole in sequence along the axial direction; a sensor circuit board (007) is arranged at the junction of the receiving cavity and the central through hole; a radial through hole (006) is provided on the tool handle (004); the radial through hole (006) is connected to the central through hole and the outside world; The tool clamping part (001) includes an end mill (101), a nut (102), and a retaining spring (103); the retaining spring (103) is installed in the accommodating cavity; the retaining spring (103) clamps the end mill (101); the nut (102) is used to fix the end mill (101) and the retaining spring (103); the nut (102) is threadedly fastened to the upper end of the tool handle (004); The power supply part (002) includes a battery compartment and a battery (209); the battery compartment as a whole is a circular cylindrical structure with a battery accommodating cavity encapsulated therein; the battery compartment includes a bushing (201), a compartment wall (207) and a sealing plate (206); the bushing (201) serves as a top wall and an inner wall, the compartment wall (207) serves as an outer wall, and the sealing plate (206) serves as a bottom wall, together forming the battery compartment; a spring contact male head (205) is provided on the lower surface of the sealing plate (206); the battery (209) is accommodated in the battery accommodating cavity; the battery (209) is communicated with the spring contact male head (205); the bushing (201), the compartment wall (207) and the sealing plate (206) enclose a battery accommodating cavity; the compartment wall (207) is made of soft magnetic material; the bushing (20 1) and the sealing plate (206) are made of non-magnetic material; a plurality of blind hole grooves are provided on the outer circumference of the chamber wall (207); a magnetic isolation sleeve (204) is arranged in the blind hole groove; the magnetic isolation sleeve (204) covers the bottom and lower side wall of the blind hole groove; the magnetic isolation sleeve (204) is made of non-magnetic material; the magnetic isolation sleeve (204) and the blind hole groove enclose a magnet sliding channel; the magnet (203) and the reset spring are arranged in the magnet sliding channel; the magnet (203) blocks the opening of the magnet sliding channel; one end of the reset spring is connected to the magnet (203), and the other end is connected to the magnetic isolation sleeve (204); the magnet (203) is pressed, and the magnet (203) can move in the magnet sliding channel; the spring is used to achieve reset of the magnet (203) after being pressed; The signal processing part (003) is a circular cylindrical structure as a whole; the signal processing part (003) comprises a magnetic attraction ring (301), a magnetic isolation ring (303), a circuit board base (304) and a base (305) stacked in sequence from top to bottom; the base (305) is placed on a positioning boss; a signal processing circuit board (308) is fixed on the circuit board base (304); the signal processing circuit board (308) is connected to the sensor circuit board (007) through a signal line; the signal line passes through the central through hole and the radial through hole (006) in sequence; the magnetic isolation ring (303) is made of non-magnetic material; the magnetic isolation ring (303) is in a stepped shape with the outer ring lower and the inner ring higher The upper surface of the magnetic isolation ring (303) is provided with a spring contact female head (302); the signal processing circuit board (308) is connected to the spring contact female head (302); the magnetic attraction ring (301) is nested on the outer ring of the magnetic isolation ring (303); the magnetic attraction ring (301) is made of soft magnetic material; the power supply part (002) is placed above the signal processing part (003); the spring contact female head (302) is connected to the spring contact male head (205); the battery (209) supplies power to the signal processing circuit board (308) through the spring contact male head (205) and the spring contact female head (302); the magnetic attraction ring (301) adsorbs the warehouse wall (207); During machining, the end mill (101) generates vibration when cutting a workpiece; the vibration is transmitted to the tool holder (004) via the tool tip, thereby causing the sensor circuit board (007) fixed thereon to detect acceleration; the signal generated by the sensor circuit board (007) is transmitted to the signal processing circuit board (308) via a signal line; the signal processing circuit board (308) processes the signal and transmits the data to a host computer; When the battery (209) is exhausted and needs to be replaced, the magnet (203) is pressed, and the contact area between the side of the magnet (203) and the soft magnetic chamber wall (207) is reduced, while the contact area with the non-magnetic magnetic isolation sleeve (204) is increased, so that the magnetism of the chamber wall (207) is significantly reduced, and the magnet can be separated from the magnetic ring (301).

2. The power-swappable intelligent vibration measuring milling cutter based on a magnetic attraction structure according to claim 1 is characterized in that: The bushing (201) and the bin wall (207) are fixed via bushing screws (202); and the sealing plate (206) and the bushing (201) are fixed via sealing plate screws (208).

3. The power-swappable intelligent vibration measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: The magnetic isolation ring (303) and the circuit board base (304) are fixed to the base (305) via long screws (311); the base (305) is fixed to the upper surface of the positioning boss of the shank (004) via base screws (306); the magnetic isolation ring (303) and the circuit board base (304) are fixed to the base (305) via long screws (311); the magnetic attraction ring (301) is fixed to the magnetic isolation ring (303) via radial set screws (312).

4. The power-swappable intelligent vibration measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: The battery (209) is a rechargeable arc-shaped lithium battery; a plurality of batteries (209) are connected in series and evenly adhered to the inner circumference of the bin body wall (207).

5. The power-swappable intelligent vibration-measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: Through holes are evenly distributed on the signal processing circuit board (308). After the circuit board screws (307) are screwed into the hexagonal copper pillars (309) at the through holes, the hexagonal copper pillars (309) are fixed to the circuit board base (304) using nuts (310).

6. The power-swappable intelligent vibration measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: The bin wall (207) is made of manganese-zinc ferrite or nickel-zinc ferrite; the magnetic isolation sleeve (204) is made of aluminum alloy or plastic; and the magnet (203) is made of aluminum-nickel-cobalt permanent magnet alloy or neodymium-iron-boron permanent magnet alloy.

7. The power-swappable intelligent vibration-measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: The tool handle (004) is obtained by secondary processing of a BT50-ER40 standard tool handle.

8. The power-swappable intelligent vibration-measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: The tool handle (004) and the base (305) are provided with corresponding through holes for installing a proximity switch (005); the proximity switch (005) is connected in series in the circuit, and when the tool is installed on the spindle and is ready for processing, both switches detect the flat key and close, and at this time the acquisition circuit is opened; and when the tool handle (004) is placed in a tool holder or a tool magazine, at most only one switch is closed and the circuit cannot be opened.

9. The power-swappable intelligent vibration-measuring milling cutter based on a magnetic attraction structure according to claim 1, characterized in that: The circuit board base (304) is made of a material that is both light-transmissive and electromagnetic-wave-transmissive. The circuit board base (304) has a power wiring hole (314) for connecting a signal processing circuit board (308) and a spring contact female connector (302), and an antenna wiring hole (315) for connecting a tricolor LED (313) and an FPC antenna (316). Both the power wiring hole (314) and the antenna wiring hole (315) are straight slot-shaped through holes. The tricolor LED (313) is used to display the power status. The FPC antenna (316) is used to transmit WIFI signals.

10. The power-swappable intelligent vibration-measuring milling cutter based on a magnetic attraction structure according to claim 9, characterized in that: The FPC antenna (316) can prevent the metal base (305) from interfering with the WIFI signal, thereby transmitting the wireless signal through the circuit board base (304) that is transparent to electromagnetic waves; the three-color LED (313) can display different colors of light according to the remaining power of the power supply, such as green represents more than 75% of the power remaining, yellow represents 25% to 75% of the power remaining, and red represents less than 25% of the power remaining. If it is not lit, the power is exhausted.

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