Efficient hole machining boring cutter for numerical control milling machine

Abstract

The invention discloses an efficient hole machining boring cutter for a numerical control milling machine, which comprises a modularized boring cutter body, the boring cutter body is arranged on a machine tool clamping part of the numerical control milling machine, and the modularized boring cutter body is sequentially provided with a main shaft connecting module, a middle shaft module, a blade mounting module and an auxiliary function module along the axial direction, the main shaft connecting module, the middle shaft module, the blade mounting module and the auxiliary function module are detachably connected through a locking mechanism and a positioning mechanism; the vibration control module is arranged on the periphery of the intermediate shaft module and is fixedly connected with the intermediate shaft module; the cutter management module is integrated in the blade mounting module, and the cutter management module and the blade mounting module form an integrated structure; the cooling module penetrates through the axial center of the boring cutter body, and an outlet is formed in the blade mounting module; the adjusting module is arranged between the blade mounting module and the auxiliary function module and is used for adjusting the position of the blade; and the control unit is arranged in the main shaft connecting module, is electrically connected with other modules and the numerical control machine tool through internal communication lines, and is used for receiving a control signal of the numerical control machine tool.

Description

Technical Field

[0001] The present application relates to the technical field of numerically controlled machine tools, and in particular to a high-efficiency hole machining boring tool for a numerically controlled milling machine. Background Art

[0002] The boring tool of CNC machine tools is a cutting tool used for finishing holes, and is widely used in various universal CNC milling machines for combined processing. With the increasing requirements of modern manufacturing industry for processing accuracy, efficiency and flexibility, traditional boring tools can no longer meet the complex processing needs. Existing boring tools have the following technical defects: single structure, difficult to adapt to different processing requirements; poor vibration control ability, affecting processing accuracy and surface quality; tool position adjustment is not precise enough, and it is difficult to achieve micron-level precision control; these problems seriously restrict the application and development of CNC milling machines in the field of high-precision and high-efficiency hole processing. Summary of the invention

[0003] In view of this, the present application provides a high-efficiency hole processing boring tool for a CNC milling machine, which solves the problem of single function and insufficient precision control of the boring tool in the prior art.

[0004] The embodiment of the present application provides a high-efficiency hole machining boring tool for a CNC milling machine, comprising: A modular boring tool body, wherein the boring tool body is arranged on a machine tool clamping component of a numerically controlled milling machine, and the modular boring tool body is sequentially provided with a spindle connection module, an intermediate shaft module, a blade installation module and an auxiliary function module along the axial direction, and the spindle connection module, the intermediate shaft module, the blade installation module and the auxiliary function module are detachably connected through a locking mechanism and a positioning mechanism; A vibration control module, arranged on the periphery of the intermediate shaft module and fixedly connected to the intermediate shaft module; A tool management module is integrated in the blade installation module to form an integrated structure with the blade installation module; A cooling module passes through the axial center of the boring tool body and is provided with an outlet at the blade mounting module; An adjustment module, disposed between the blade installation module and the auxiliary function module, for adjusting the blade position; The control unit is arranged in the spindle connection module, is electrically connected to other modules and the CNC machine tool through an internal communication line, and receives control signals from the CNC machine tool.

[0005] The vibration control module includes: a carbon fiber composite material layer filled in the H-shaped body of the intermediate shaft module; a plurality of groups of miniature piezoelectric sensors and actuators evenly distributed on the periphery of the intermediate shaft module and tightly fitted with the carbon fiber composite material layer; an adaptive controller arranged in the main shaft connection module and electrically connected to the piezoelectric sensors and actuators through signal lines.

[0006] The tool management module includes: a blade rotation mechanism, which is arranged on the circumference of the blade mounting module and includes a plurality of independently adjustable blade seats; an asymmetrically distributed main cutting edge, which is arranged on both sides of the blade mounting module and is mechanically connected to the blade rotation mechanism; an integrally formed double-headed cutting edge, which is installed on the blade seat and switches between rough machining and finishing edges.

[0007] The cooling module includes: a central main channel, which is arranged to penetrate the axial direction of the boring tool body; a plurality of peripheral auxiliary channels, which are arranged in parallel along the axial direction of the boring tool body and merge with the central main channel at the blade mounting module; an adjustable nozzle assembly, which is arranged around the cutting edge of the blade mounting module and communicates with the peripheral auxiliary channels; and a multi-groove core structure, which is arranged in the intermediate shaft module and connected to the central main channel and the peripheral auxiliary channels.

[0008] The adjustment module includes: a multi-layer stacked piezoelectric ceramic, which is arranged in the blade mounting module and directly connected to the blade seat; an auxiliary fine-tuning mechanism, which is arranged between the blade mounting module and the auxiliary function module, and includes: micro-heating elements, which are evenly distributed around the blade seat; a temperature sensor, which is installed close to the blade seat; a thermal expansion controller, which is arranged in the auxiliary function module and electrically connected to the micro-heating elements and the temperature sensor; a thermal expansion compensation structure, which is arranged between the blade seat and the blade mounting module and is used to convert thermal expansion into displacement.

[0009] The boring tool also includes: a data processing unit, which is arranged in the spindle connection module and is adjacent to the control unit; a wireless communication module, which is arranged on the periphery of the spindle connection module and is electrically connected to the data processing unit; an energy collection device, which is distributed on the outer surface of the intermediate shaft module and is connected to the power supply module of each module through an energy converter; and a balancing module, which is arranged in the auxiliary function module and includes a movable counterweight block and a driving mechanism.

[0010] The connection mechanism of the modular boring tool body includes: the locking mechanism, which is arranged at the connection between adjacent modules, including a male end with a raised slot, a female end with a corresponding groove and a rotatable external locking ring; a positioning mechanism, which is arranged inside the locking mechanism, including a matching conical surface, a keyway and a positioning key; a preload spring, which is arranged between the conical surfaces and is used to keep the conical surfaces in continuous close contact; an automatic identification module, including an RFID tag arranged on the connection surface of each module and an RFID reader arranged in the spindle connection module.

[0011] The boring tool also includes: a telescopic boring bar structure, which is arranged in the intermediate shaft module and includes a plurality of telescopic sections; a hydraulic locking mechanism, which is arranged between each telescopic section and connected to the hydraulic control unit in the main shaft connection module; a length sensor, which is arranged in each section of the telescopic boring bar structure and is electrically connected to the control unit; and an automatic length adjustment device, which is arranged in the intermediate shaft module and includes a drive motor and a transmission mechanism and is mechanically connected to the telescopic boring bar structure.

[0012] The boring tool also includes: a micro force sensor array, which is arranged between the blade seat and the blade; a dynamic compensation mechanism, which is arranged in the blade mounting module and corresponds to the micro force sensor array; a cutting force distribution monitoring module, which is arranged in the control unit and connected to the micro force sensor array through a signal processing circuit; a feed amount dynamic adjustment device, which is arranged in the blade mounting module and mechanically connected to the dynamic compensation mechanism; a chip monitoring camera, which is arranged on the outside of the auxiliary function module and faces the cutting area; an image processing unit, which is arranged in the control unit and electrically connected to the chip monitoring camera; a spindle speed and feed speed automatic adjustment interface, which is arranged on the outside of the spindle connection module and is used to connect to the CNC milling machine control module.

[0013] The modular boring tool also includes an inter-module signal and power transmission module, including: a wireless charging coil, arranged at the center of the connection surface of each module; an optical signal transceiver, arranged around the wireless charging coil; a dustproof sealing ring, arranged at the edge of the connection surface, encapsulating the wireless charging coil and the optical signal transceiver; a power management unit, arranged in each module and electrically connected to the wireless charging coil; and a photoelectric converter, arranged in each module and optically and electrically connected to the optical signal transceiver.

[0014] This application has the following technical effects: 1. The modular design improves the flexibility and adaptability of the boring tool. The functional modules can be quickly replaced or adjusted according to different processing requirements to form a combined boring tool; 2. The vibration control module effectively suppresses vibration during machining, improving machining accuracy and surface quality; 3. The tool management module realizes online monitoring and adjustment, prolongs tool life and improves processing efficiency; 4. The cooling module improves the cooling effect of the cutting area, increasing processing efficiency and tool life; 5. The adjustment module realizes micron-level precise adjustment of the tool position, meeting the requirements of high-precision processing; 6. Intelligent function modules realize adaptive processing and real-time monitoring, improving processing quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the overall structure of a high-efficiency hole machining boring tool for a CNC milling machine provided in an embodiment of the present application; Figure 2 A cross-sectional view of a boring tool body provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a vibration control module provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a tool management module provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a cooling module provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of the adjustment module provided in the embodiment of the present application; Figure 7 A schematic diagram of the structure of the inter-module connection mechanism provided in the embodiment of the present application; Figure 8 A schematic diagram of a telescopic boring bar structure provided in an embodiment of the present application; Fig. 9 A schematic diagram of the inter-module signal and power transmission module structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0018] like Figure 1 and Figure 2 As shown, the present application provides an efficient hole machining boring tool for a CNC milling machine, including a modular boring tool body, a vibration control module, a tool management module, a cooling module, an adjustment module and a control unit. The boring tool adopts a modular design, and each functional module can be flexibly combined and quickly replaced according to actual processing requirements.

[0019] Reference Figure 1 and Figure 2The boring tool body is arranged on the machine tool clamping component of the CNC milling machine, and the modular boring tool body is sequentially provided with a spindle connection module 100, an intermediate shaft module 200, a blade installation module 300 and an auxiliary function module 400 along the axial direction. These modules are detachably connected through a locking mechanism and a positioning mechanism, so as to realize rapid disassembly and assembly and precise positioning.

[0020] The boring tool is in the shape of an elongated cylinder and is composed of a plurality of functional modules connected in sequence along the axial direction.

[0021] The spindle connection module (100) is located at the leftmost end of the boring tool (the left side is the end connected to the machine tool), is cylindrical, and has a standardized interface at one end for connecting to the spindle of a CNC milling machine.

[0022] The intermediate shaft module (200) is adjacent to the main shaft connection module and is the main part of the boring tool. It is a long cylinder that provides the main support and rigidity of the entire boring tool.

[0023] The blade installation module (300) is located behind the intermediate shaft module and is slightly thicker than the intermediate shaft module. The module has a relatively complex appearance and includes a structure for installing and adjusting the blade.

[0024] The auxiliary function module (400) is located at the rightmost end of the boring tool (the right side is the processing end). This module contains various sensors and auxiliary equipment and has a relatively complex appearance.

[0025] The control unit (500) is integrated inside the spindle connection module (100).

[0026] The modules are connected by threads or quick-change interfaces to ensure close fit and easy disassembly. There are obvious seams or protrusions at the transition between modules for positioning and locking. The entire boring tool presents a tapered design that tapers from left to right to reduce interference during processing.

[0027] Specifically, the spindle connection module 100 is used to connect with the spindle of the CNC milling machine, adopts a standardized interface design, and is suitable for various models of CNC milling machines. A control unit 500 is provided inside the module, which serves as the "brain" of the entire boring tool and is responsible for coordinating the work of each module. The control unit 50 uses a high-performance microprocessor, has real-time data processing and decision-making capabilities, and also receives control signals from the CNC machine tool.

[0028] The intermediate shaft module 200 is the main part of the boring tool, providing rigid support and transmitting cutting force. The module is made of high-strength alloy material and has a telescopic boring bar structure inside ( Figure 8), which can be adjusted in length according to the processing depth requirements. The telescopic boring bar structure includes multiple telescopic sections, one end of which is fixed to the connecting plate 212 and the other end is sealed by a high-performance sealing ring 213. A hydraulic locking mechanism 209 is provided between the multiple telescopic sections and is connected to the hydraulic control unit 210 in the spindle connection module. The length sensor 211 is arranged in each section of the telescopic boring bar structure, electrically connected to the control unit, and monitors the boring bar length in real time. The automatic length adjustment device is arranged in the intermediate shaft module, including a drive motor and a transmission mechanism, which can automatically adjust the boring bar length according to the processing requirements.

[0029] The blade installation module 300 is the core component for realizing the cutting function and is closely integrated with the tool management module. Figure 4 As shown, the tool management module includes a drive motor 301, a blade rotation mechanism (rotating disk) 302, a blade seat 303, an asymmetrically distributed main cutting edge 304 and an integrally formed double-headed cutting edge 305, wherein a blade rotation mechanism frame is also provided above the blade rotation mechanism (rotating disk) 302. The blade rotation mechanism 302 is arranged in the circumference of the blade mounting module, and includes a plurality of independently adjustable blade seats 303. This design allows for rapid switching of blades at different processing stages, thereby improving processing efficiency. The asymmetrically distributed main cutting edge 304 is arranged on both sides of the blade mounting module, and is mechanically connected to the blade rotation mechanism 302, so as to realize processing of different cutting depths and widths. The integrally formed double-headed cutting edge 305 is installed on the blade seat 303, and can switch between roughing and finishing edges to meet different processing accuracy requirements.

[0030] The auxiliary function module 400 integrates multiple auxiliary functions, such as a balancing module, a thermal expansion controller, etc. The balancing module is arranged in the auxiliary function module, and includes a movable counterweight block and a driving mechanism, which can adjust the dynamic balance of the boring tool in real time and reduce processing vibration.

[0031] The vibration control module is a major innovation of this application. Figure 3As shown, the vibration control module includes a carbon fiber composite material layer 201, multiple groups of micro piezoelectric sensors 202 and actuators 203 and / or an adaptive controller 511. The carbon fiber composite material layer 201 is filled in the H-shaped body of the intermediate shaft module, providing high stiffness and low density structural support, and effectively reducing the natural vibration frequency. Multiple groups of micro piezoelectric sensors 202 and actuators 203 are evenly distributed on the periphery of the intermediate shaft module and fit tightly with the carbon fiber composite material layer 201. The piezoelectric sensor 202 monitors the vibration state of the boring tool in real time, and the piezoelectric actuator 203 generates a force to offset the vibration according to the control signal. The adaptive controller (not shown in the figure) is set in the main shaft connection module, electrically connected to the piezoelectric sensor and actuator through a signal line, and uses an advanced control algorithm to achieve real-time vibration suppression. In addition, the energy collection device 205 is distributed on the outer surface of the intermediate shaft module and connected to the power supply module of each module through an energy converter.

[0032] Specifically, the carbon fiber composite material layer 201 is filled in the H-shaped body of the intermediate shaft module, providing high stiffness and low-density structural support, effectively reducing the natural vibration frequency. The composite material is made of high modulus carbon fiber (modulus ≥ 300GPa) and epoxy resin matrix, with a fiber volume fraction of more than 60%. The composite material layer adopts a [0° / ±45° / 90°]s layup design to ensure excellent mechanical properties in all directions. This design increases the stiffness of the intermediate shaft module by about 40%, while the weight only increases by about 5%, significantly improving the dynamic performance of the boring tool.

[0033] Multiple groups of micro piezoelectric sensors 202 and actuators 203 are evenly distributed on the periphery of the intermediate shaft module and fit closely with the carbon fiber composite material layer. PZT-5H type piezoelectric ceramic material is used here, which has a high piezoelectric constant (d33 ≥ 590pC / N) and a high electromechanical coupling coefficient (k33 ≥ 0.75). The piezoelectric sensors and actuators are in the form of thin films with a thickness of only 0.2mm to minimize the impact on the boring tool structure.

[0034] The piezoelectric sensor monitors the vibration state of the boring tool in real time, with a sampling frequency of up to 20kHz, and can capture vibration signals up to 10kHz. The piezoelectric actuator generates a force to offset the vibration according to the control signal, with a response time of less than 0.1ms and a maximum displacement of ±30μm, which is sufficient to cope with most machining vibration conditions.

[0035] The adaptive controller is set in the spindle connection module and uses TI's TMS320F28379D series DSP chip with a main frequency of up to 200MHz. It has a floating-point unit and can realize real-time processing of complex control algorithms. The controller is electrically connected to the piezoelectric sensor and actuator through a high-speed LVDS (Low-Voltage Differential Signaling) signal line to ensure high-speed signal transmission and anti-interference.

[0036] The control algorithm adopts an adaptive filtering algorithm based on H∞ robust control theory. The algorithm first establishes the state space model of the boring tool system: x(k+1) = Ax(k) + Bu(k) + w(k); y(k) = Cx(k) + v(k); Where x(k) is the system state vector, u(k) is the control input, y(k) is the measurement output, w(k) and v(k) are the system noise and measurement noise, respectively.

[0037] The objective function of the controller is designed as: J = Σ[y(k)T*Q*y(k) + u(k)T*R*u(k)]; Among them, Q and R are weighted matrices used to balance the control effect and energy consumption.

[0038] Based on this model, the controller uses the recursive least squares (RLS) method to estimate system parameters in real time and uses the H∞ control theory to design the optimal control law: u(k) = -K(k)x(k); Where K(k) is the time-varying feedback gain matrix, which is obtained by solving the following Riccati equation: P(k+1) = AT*P(k) A - AT*P(k) B (R + BT*P(k) B)-1 BT*P(k) A + Q; K(k) = (R + BT*P(k) B -1 )BT*P(k) A; This adaptive control algorithm can adjust control parameters in real time to adapt to different processing conditions and boring tool configurations to achieve optimal vibration suppression.

[0039] In addition, the controller also integrates a fast Fourier transform (FFT) module, which can analyze the spectral characteristics of the vibration signal in real time and identify the main vibration frequency components. Based on this information, the controller can generate a control signal to offset the vibration in a targeted manner, further improving the vibration suppression effect.

[0040] In actual application, the vibration control system can effectively suppress vibrations in the range of 50Hz-5000Hz, and the vibration amplitude can be reduced by more than 60%. The suppression effect is particularly significant for the bending vibration and torsional vibration common in boring cutters, and the vibration amplitude can be reduced to less than 30% of the original.

[0041] This advanced vibration control technology not only significantly improves machining accuracy and surface quality, but also extends tool life and reduces the frequency of tool replacement, thereby improving overall machining efficiency.

[0042] The structure of the cooling module is as follows Figure 5 As shown, it includes a central main channel 205, multiple peripheral auxiliary channels 206, an adjustable nozzle assembly 307 and a multi-groove core structure 204, and a pin cutting monitoring camera 401 and an image processing unit 402 are located next to the cooling module. The central main channel is arranged along the axial direction of the boring tool body, for example, through the center or along the center periphery, as the main coolant channel. Multiple peripheral auxiliary channels are arranged in parallel along the axial direction of the boring tool body, and merge with the central main channel at the blade mounting module to form a multi-point liquid supply system. The adjustable nozzle assembly is arranged around the cutting edge of the blade mounting module and is connected to the peripheral auxiliary channels. The flow rate and direction of the coolant can be adjusted according to the cutting conditions. The multi-groove core structure is arranged in the intermediate shaft module, and has a coolant inlet, which is connected to the central main channel and the peripheral auxiliary channels, thereby increasing the flow area of ​​the coolant and improving the heat dissipation efficiency.

[0043] The structure of the adjustment module is as follows Figure 6 As shown, it includes a multi-layer stacked piezoelectric ceramic 311 and an auxiliary fine-tuning mechanism. The multi-layer stacked piezoelectric ceramic is arranged in the blade mounting module and is directly connected to the blade seat, so as to realize nano-level displacement control. The auxiliary fine-tuning mechanism is arranged between the blade mounting module and the auxiliary function module, including a micro-heating element 312, a temperature sensor 313, a thermal expansion controller 314 and a thermal expansion compensation structure 315, as well as a thermal expansion compensation structure shaft seat 316 and a matching balancing module 317. The micro-heating elements are evenly distributed around the blade seat, the temperature sensor is installed close to the blade seat, and the thermal expansion controller is arranged in the auxiliary function module and is electrically connected to the micro-heating element and the temperature sensor. The thermal expansion compensation structure is arranged between the blade seat and the blade mounting module to convert thermal expansion into precise displacement. This design combines the fast response of piezoelectric ceramics and the large stroke characteristics of thermal expansion to achieve precise adjustment of the tool position.

[0044] In order to improve the intelligence level of the boring tool, this application also integrates a variety of advanced monitoring and control systems. Figure 6As shown, the micro force sensor array 320 is arranged between the blade seat and the blade to monitor the size and distribution of the cutting force in real time. The dynamic compensation mechanism 309 is arranged in the blade installation module, corresponding to the micro force sensor array 320, and can adjust the tool position in real time according to the change of cutting force. The cutting force distribution monitoring module 512 is arranged in the control unit, connected to the micro force sensor array through the signal processing circuit, and analyzes the mechanical characteristics during the cutting process. The feed rate dynamic adjustment device 310 is arranged in the blade installation module, mechanically connected to the dynamic compensation mechanism, and can automatically adjust the feed rate according to the change of cutting force. The chip monitoring camera is arranged on the outside of the auxiliary function module, facing the cutting area, and monitors the chip morphology in real time. The image processing unit is arranged in the control unit, electrically connected to the chip monitoring camera, and analyzes the cutting state through the image recognition algorithm. Spindle speed and feed speed automatic adjustment interface 507 ( Fig. 9 ) is arranged outside the spindle connection module, and is used to connect with the CNC milling machine control module to achieve real-time optimization of processing parameters. Among them, the tool holder installation sleeve 318 is responsible for installing the tool holder.

[0045] A key point of modular design is the connection and communication between modules. Figure 7 As shown, the connection mechanism of the modular boring tool body includes a locking mechanism and a positioning mechanism. The locking mechanism is arranged at the connection of adjacent modules, including a male end 320 with a protruding slot, a female end 319 (a female end 324 with a corresponding groove) that matches it, and a rotatable external locking ring. The positioning mechanism is arranged inside the locking mechanism, including a matching conical surface 327, a keyway 325 and a positioning key 322, and a locking turntable 323. A preload spring 326 is arranged between the conical surfaces to keep the conical surfaces in continuous close contact. This design ensures precise positioning and a firm connection between the modules.

[0046] In order to realize automatic identification and configuration of modules, the present application also designs an automatic identification module, including an RFID tag set on the connection surface of each module and an RFID reader 508 set in the spindle connection module. When the modules are assembled, the control unit can automatically identify the type and parameters of each module and perform system configuration.

[0047] like Fig. 9As shown, the inter-module signal and power transmission module 506 adopts wireless transmission technology, including a wireless charging coil 501, an optical signal transceiver 502, a dustproof seal 503, a power management unit 504 and a photoelectric converter 505. The wireless charging coil is arranged at the center of the connection surface of each module to realize wireless power supply between modules. The optical signal transceiver is arranged around the wireless charging coil for high-speed data transmission. The dustproof seal is arranged at the edge of the connection surface, encapsulating the wireless charging coil and the optical signal transceiver to provide dustproof and waterproof protection. The power management unit is arranged in each module, electrically connected to the wireless charging coil, and is responsible for power distribution and management. The photoelectric converter is arranged in each module, optically and electrically connected to the optical signal transceiver to realize the conversion of photoelectric signals. This design avoids the wear and poor contact problems of traditional connectors and improves the reliability of the system.

[0048] The module further comprises a data processing unit 509, which is arranged in the spindle connection module and adjacent to the control unit; A wireless communication module 510, arranged at the periphery of the spindle connection module and electrically connected to the data processing unit; In practical applications, the modular boring tool of the present application can be flexibly configured according to different processing requirements. For example, for deep hole processing, a longer intermediate shaft module and a cooling module with multi-stage cooling channels can be selected; for high-precision processing, the vibration control module and the adjustment module can be configured; for mass production, a tool management module with multiple blades can be selected to improve processing efficiency.

[0049] In addition, the boring tool of the present application also has self-learning and optimization functions. By collecting and analyzing a large amount of processing data, the control unit can continuously optimize the processing parameters and control strategies to achieve continuous improvement in processing quality and efficiency.

[0050] In summary, the high-efficiency hole processing boring tool for CNC milling machines provided in this application achieves high-precision, high-efficiency and high-flexibility hole processing through innovative modular design and advanced intelligent control technology, providing an advanced processing tool solution for modern manufacturing industry.

[0051] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A high-efficiency boring tool for hole machining on a CNC milling machine, characterized in that: include: A modular boring tool body, wherein the boring tool body is arranged on a machine tool clamping component of a numerically controlled milling machine, and the modular boring tool body is sequentially provided with a spindle connection module, an intermediate shaft module, a blade installation module and an auxiliary function module along the axial direction, and the spindle connection module, the intermediate shaft module, the blade installation module and the auxiliary function module are detachably connected through a locking mechanism and a positioning mechanism; A vibration control module, arranged on the periphery of the intermediate shaft module and fixedly connected to the intermediate shaft module; A tool management module is integrated in the blade installation module to form an integrated structure with the blade installation module; A cooling module passes through the axial center of the boring tool body and is provided with an outlet at the blade mounting module; An adjustment module, disposed between the blade installation module and the auxiliary function module, for adjusting the blade position; The control unit is arranged in the spindle connection module, is electrically connected to other modules and the CNC machine tool through an internal communication line, and receives control signals from the CNC machine tool.

2. The boring tool according to claim 1, characterized in that The vibration control module comprises: a carbon fiber composite material layer filled in the H-shaped body of the intermediate shaft module; A plurality of groups of micro piezoelectric sensors and actuators are evenly distributed on the periphery of the intermediate shaft module and closely fit with the carbon fiber composite material layer; The adaptive controller is arranged in the spindle connection module and is electrically connected to the piezoelectric sensor and the actuator through a signal line.

3. The boring tool according to claim 1, characterized in that The tool management module includes: A blade rotation mechanism is arranged in the circumference of the blade mounting module and includes a plurality of independently adjustable blade seats; Asymmetrically distributed main cutting edges are arranged on both sides of the blade mounting module and are mechanically connected to the blade rotation mechanism; An integrally formed double-ended cutting edge is mounted on the insert seat, and the double-ended cutting edge switches between a rough machining edge and a fine machining edge.

4. The boring tool according to claim 1, characterized in that The cooling module comprises: The central main channel is arranged to penetrate the boring cutter body axially; A plurality of peripheral auxiliary channels are arranged parallel to the axial direction of the boring tool body and merge with the central main channel at the blade mounting module; an adjustable nozzle assembly, disposed around the cutting edge of the blade mounting module and communicating with the peripheral auxiliary channel; The multi-groove core structure is arranged in the intermediate shaft module and is connected with the central main channel and the peripheral auxiliary channels.

5. The boring tool according to claim 3, characterized in that: The adjustment module comprises: A multi-layer stacked piezoelectric ceramic is arranged in the blade mounting module and is directly connected to the blade seat; The auxiliary fine-tuning mechanism is arranged between the blade mounting module and the auxiliary function module, and comprises: Micro heating elements are evenly distributed around the blade seat; A temperature sensor is installed close to the blade seat; A thermal expansion controller, disposed in the auxiliary function module and electrically connected to the micro-heating element and the temperature sensor; The thermal expansion compensation structure is arranged between the blade seat and the blade mounting module, and is used for converting thermal expansion into displacement.

6. The boring tool according to claim 1, characterized in that Also includes: A data processing unit, arranged in the spindle connection module and adjacent to the control unit; A wireless communication module, arranged at the periphery of the spindle connection module and electrically connected to the data processing unit; An energy collection device is distributed on the outer surface of the intermediate shaft module and is connected to the power supply module of each module through an energy converter; The balancing module is arranged in the auxiliary function module and comprises a movable counterweight block and a driving mechanism.

7. The boring tool according to claim 1, characterized in that The connecting mechanism of the modular boring tool body comprises: The locking mechanism is arranged at the connection between adjacent modules and comprises a male end with a protruding slot, a female end with a corresponding groove and a rotatable external locking ring; A positioning mechanism, arranged inside the locking mechanism, comprising a matching conical surface, a keyway and a positioning key; A preload spring, arranged between the conical surfaces, for maintaining the conical surfaces in continuous close contact; The automatic identification module includes an RFID tag arranged on the connection surface of each module and an RFID reader arranged in the main shaft connection module.

8. The boring tool according to claim 1, characterized in that Also includes: A telescopic boring bar structure, disposed in the intermediate shaft module, includes a plurality of telescopic sections; A hydraulic locking mechanism, disposed between each telescopic segment and connected to a hydraulic control unit in the spindle connection module; a length sensor, arranged at each section of the telescopic boring bar structure and electrically connected to the control unit; The automatic length adjustment device is arranged in the intermediate shaft module, comprises a driving motor and a transmission mechanism, and is mechanically connected with the telescopic boring bar structure.

9. The boring tool according to claim 1, characterized in that Also includes: A micro force sensor array is arranged between the blade seat and the blade; A dynamic compensation mechanism is disposed in the blade mounting module and corresponds to the micro force sensor array; A cutting force distribution monitoring module is arranged in the control unit and connected to the micro force sensor array through a signal processing circuit; A feed amount dynamic adjustment device is arranged in the blade mounting module and is mechanically connected to the dynamic compensation mechanism; A chip monitoring camera is arranged outside the auxiliary function module and faces the cutting area; An image processing unit, disposed in the control unit and electrically connected to a chip monitoring camera; The main shaft speed and feed speed automatic adjustment interface is arranged outside the main shaft connection module and is used for connecting with the numerical control milling machine control module.

10. The boring tool according to claim 1, characterized in that The modular boring tool also includes an inter-module signal and power transmission module, including: A wireless charging coil is arranged at the center of the connection surface of each module; An optical signal transceiver, arranged around the wireless charging coil; A dustproof sealing ring is arranged at the edge of the connecting surface to encapsulate the wireless charging coil and the optical signal transceiver; A power management unit, disposed in each module and electrically connected to the wireless charging coil; The photoelectric converter is arranged in each module and is optically and electrically connected to the optical signal transceiver.

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