Automatic machining equipment for rear axle transmission shaft of new energy automobile

Abstract

The invention relates to the technical field of transmission shaft machining equipment, in particular to new energy automobile rear axle transmission shaft automatic machining equipment which comprises a workbench provided with a servo motor and further comprises a limiting mechanism installed on the workbench and connected with the servo motor. The limiting mechanism fixes the two ends of the transmission shaft, the transmission shaft is driven to rotate through driving force provided by the servo motor, in the scheme, due to the application of the ultrasonic transmitter, ultrasonic waves are transmitted into the cutter frame, so that the cutter vibrates in the cutting process, the cutting force is effectively reduced, cutter abrasion and energy consumption are reduced, and the cutting efficiency is improved. Meanwhile, the machining efficiency and the surface quality are improved; the low-frequency ultrasonic vibration energy and the high-frequency ultrasonic vibration energy generated by the ultrasonic transmitter are suitable for the primary machining stage and the fine cutting stage of the transmission shaft respectively, fine control over the machining process is achieved, the time needed for follow-up fine grinding of the transmission shaft is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drive shaft processing equipment, and particularly to an automatic processing equipment for the rear axle drive shaft of a new energy vehicle. Background Art

[0002] In the precision machining of the rear axle drive shaft of a new energy vehicle, traditional CNC lathes face two core bottlenecks: First, the processing efficiency of the turning process is significantly lower than the production line beat requirements; second, the consumption of tools and auxiliary materials in the single-piece processing cost accounts for an unusually prominent proportion. Through production measurement and mechanism analysis, the technical roots of the above problems can be specifically characterized as follows: (I) Processing Efficiency Restriction Mechanism The imbalance of cutting dynamics leads to the limitation of the feed speed: When processing a drive shaft made of CrMo steel, the peak cutting force generated by a traditional single-point turning tool reaches 1200 - 1400N. The excessive radial component force (accounting for 45% - 50%) forces the feed speed to be reduced to 70% - 75% of the theoretical design value. Especially when rough turning a shaft diameter above φ45mm, in order to avoid workpiece deflection and deformation, the actual feed rate is limited to 0.25 - 0.3mm / r, directly resulting in an 18% - 22% increase in the single-piece turning time.

[0003] The quality defects generated on the surface cause secondary processing: The surface roughness Ra value generated by the existing process is generally higher than 3.2μm, and there are periodic vibration marks (wavelength 0.8 - 1.2mm), resulting in an additional 25% - 30% processing time in the precision grinding process to eliminate the defects. More seriously, the depth fluctuation of the surface hardened layer reaches ±15μm, forcing the precision grinding allowance to be increased from the design value of 0.15mm to 0.2mm, further aggravating the load of the precision grinding station.

[0004] (II) Abnormal Composition of Processing Costs Tool wear: Each tool needs to be replaced after an average of 80 parts are processed. Calculated based on an annual output of 100,000 parts, the tool procurement cost alone reaches 29.5% of the total production line cost.

[0005] Ineffective consumption of cutting fluid: There is a problem of inaccurate flow matching in the traditional overflow cooling system, and the actual effective utilization rate is less than 40%. Processing a single drive shaft requires 1.8 - 2.2L of cutting fluid, and about 60% of the cutting fluid forms ineffective flow because it does not reach the tool-chip contact area. Calculated according to the current market price, the annual waste cost caused by ineffective consumption is as high as 170,000 - 200,000 yuan, and the hazardous waste treatment cost is increased by about 80,000 yuan / year.

[0006] Therefore, we propose an automatic processing equipment for the rear axle drive shaft of a new energy vehicle with higher processing efficiency and lower production cost. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides an automatic processing equipment for the rear axle drive shaft of a new energy vehicle, including a workbench, on which a servo motor is installed, and further including: A limiting mechanism, which is installed on the workbench and connected to the servo motor. The limiting mechanism fixes both ends of the drive shaft, and drives the drive shaft to rotate by the driving force provided by the servo motor; A tool holder, which is hollow, and a cutting tool is installed at one end close to the workbench; A translation mechanism, which is installed on the workbench and connected to the tool holder. The translation mechanism drives the tool holder to translate horizontally or vertically; An ultrasonic transmitter, which is installed on the tool holder, and its emission port is communicated with the inside of the tool holder. The ultrasonic transmitter emits ultrasonic waves into the tool holder to drive the cutting tool to vibrate during cutting, thereby reducing the cutting force during the cutting of the drive shaft.

[0008] In some embodiments, the ultrasonic vibration energy generated by the ultrasonic transmitter is divided into two frequency bands: low frequency (20 - 40 kHz) and high frequency (40 - 60 kHz). The low frequency is used for cutting in the initial processing stage of the drive shaft to remove the main material, and the high frequency is used for fine cutting to improve the surface quality.

[0009] In some embodiments, a reflection coating with a thickness of not less than 0.2 mm is provided inside the tool holder.

[0010] In some embodiments, a piezoelectric sensor is installed at a part of the tool holder close to the workbench. The piezoelectric sensor is communicated with the inside of the tool holder. A Peltier cooler is installed on the tool holder. The cooling surface of the Peltier cooler is attached to the cutting tool, and the piezoelectric sensor and the Peltier cooler are electrically connected.

[0011] In some embodiments, a pulsed magnetic field generator is installed on the tool holder, and the pulsed magnetic field generator and the piezoelectric sensor are electrically connected.

[0012] In some embodiments, the pulsed magnetic field generator generates an adjustable-frequency pulsed magnetic field of 0.5 - 1.5 T, and the frequency range is 50 - 200 Hz. The magnetic field is used to make the chips curl in a spiral shape, reduce secondary contact, and improve the surface quality.

[0013] In some embodiments, the limiting mechanism includes an electric slide rail oppositely installed on the workbench. A slide plate is installed on the electric slide rail. The slide plate is triangular, and the two lower corners are respectively slidably arranged inside the electric slide rail through sliders. A first rotating shaft is rotatably installed on the slide plate. A first disc is installed on the first rotating shaft. A first support rod is installed on the first disc. There are several first support rods, which are evenly arranged in an array on the first disc and penetrate the round holes at one end of the transmission shaft one by one. A second disc is installed on the output shaft of the servo motor. A second support rod is installed on the second disc. There are several second support rods, which are evenly arranged in an array on the second disc and penetrate the round holes at the other end of the transmission shaft one by one. The limiting mechanism further includes a fixing member installed on the workbench.

[0014] In some embodiments, the fixing member includes a resistance-increasing piece installed on the workbench. The resistance-increasing piece is located between the two electric slide rails. A first bracket and a second bracket are respectively installed on the slide plate. A handwheel is rotatably installed on the first bracket. A thread is provided at one end of the handwheel close to the workbench. A slide rod is installed through the second bracket. The slide rod is slidably connected to the second bracket. The slide rod is hollow, and a thread groove matching the thread is provided inside. A resistance-increasing plate is fixed at one end of the slide rod close to the resistance-increasing piece.

[0015] In some embodiments, the translation mechanism is composed of a horizontal movement module and a vertical height movement module. The vertical height movement module is fixed to the tool holder.

[0016] In some embodiments, a control terminal is installed on the workbench. The control terminal is electrically connected to the ultrasonic transmitter and the pulsed magnetic field generator. The control terminal is divided into two parts: an intelligent control unit and an intelligent distribution unit. Among them, the intelligent control unit uses a deep reinforcement learning algorithm to adjust the ultrasonic amplitude, frequency, and magnetic field parameters in real time according to the cutting load. The intelligent distribution unit uses a fuzzy neural network algorithm to adjust the energy distribution ratio of each frequency band of the ultrasonic transmitter in real time according to the cutting load. The optimization range is 15 - 25% for high frequency and 75 - 85% for low frequency.

[0017] The present invention has at least the following beneficial effects: 1. The application of the ultrasonic transmitter emits ultrasonic waves into the tool holder, causing the cutting tool to vibrate during the cutting process, effectively reducing the cutting force, reducing tool wear and energy consumption, and at the same time improving the processing efficiency and surface quality; 2. The low-frequency and high-frequency ultrasonic vibration energies generated by the ultrasonic transmitter are respectively applicable to the primary processing and fine cutting stages of the transmission shaft, realizing fine control of the processing process, greatly reducing the time required for subsequent fine grinding of the transmission shaft, and improving the production efficiency; 3. The combination of a piezoelectric sensor and a Peltier cooler enables real-time monitoring and effective control of the cutting temperature, makes full use of ultrasonic waves, and significantly reduces the consumption of coolant. 4. The application of a pulsed magnetic field generator uses the magnetic field to make the chips curl in a spiral shape, reducing secondary contact and further improving the machining surface quality.

[0018] 5. The intelligent control unit and intelligent distribution unit of the control terminal adopt deep reinforcement learning algorithms and fuzzy neural network algorithms to achieve intelligent control and optimization of the machining process, improving machining efficiency and stability. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of an existing automotive drive shaft; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention from another perspective; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at position A in Figure 5 For the present invention Figure 4 Schematic diagram of another part from another perspective; Figure 6 It is a schematic diagram of the rear view structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at position B in

[0020] In the figures: 1, workbench; 2, servo motor; 3, limit mechanism; 31, electric slide rail; 32, slide plate; 33, first rotating shaft; 34, first disc; 35, first support rod; 36, second disc; 37, second support rod; 38, fixing member; 381, resistance-increasing piece; 382, first bracket; 383, second bracket; 384, handwheel; 385, slide rod; 386, resistance-increasing plate; 4, tool holder; 41, cutting tool; 42, piezoelectric sensor; 43, Peltier cooler; 44, pulsed magnetic field generator; 5, translation mechanism; 51, horizontal movement module; 52, vertical height movement module; 6, ultrasonic transmitter; 7, control terminal. Detailed Description of the Preferred Embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Example 1: Please refer to Figures 1 - 7 , the present invention provides a technical solution: an automatic processing equipment for the rear axle drive shaft of a new energy vehicle, including a workbench 1, a servo motor 2 is installed on the workbench 1, and further includes: A limiting mechanism 3, the limiting mechanism 3 is installed on the workbench 1 and is connected to the servo motor 2. The limiting mechanism 3 fixes both ends of the drive shaft, and drives the drive shaft to rotate by the driving force provided by the servo motor 2; A tool holder 4, the tool holder 4 is hollow, and a cutting tool 41 is installed at one end close to the workbench 1; A translation mechanism 5, the translation mechanism 5 is installed on the workbench 1 and is connected to the tool holder 4. The translation mechanism 5 drives the tool holder 4 to perform horizontal or vertical translation; An ultrasonic transmitter 6, the ultrasonic transmitter 6 is installed on the tool holder 4, and its emission port is communicated with the inside of the tool holder 4. The ultrasonic transmitter 6 emits ultrasonic waves into the tool holder 4 to drive the cutting tool to vibrate during cutting, reducing the cutting force during the process of cutting the drive shaft.

[0023] The ultrasonic vibration energy generated by the ultrasonic transmitter 6 is divided into two frequency bands: low frequency (20 - 40 kHz) and high frequency (40 - 60 kHz). Among them, the low frequency is used for cutting in the initial processing stage of the drive shaft to remove the main material, and the high frequency is used for fine cutting to improve the surface quality.

[0024] A reflection coating with a thickness of not less than 0.2 mm is provided inside the tool holder 4, so that the ultrasonic waves in the tool holder 4 can be fully transmitted to the cutting tool 41, reducing ultrasonic wave loss.

[0025] The ultrasonic vibration causes intermittent contact between the tool and the workpiece, forming a "micro-intermittent cutting" effect, which can: 1. Reduce the cutting force by 20 - 30%, allowing a higher feed rate; 2. Improve the surface quality and reduce the time of subsequent fine grinding process; 3. Extend the tool life by 40 - 50%.

[0026] Through calculation and experiment, the turning efficiency can be increased by 40 - 50%, reaching a production output of 17 - 19 drive shafts per hour.

[0027] A piezoelectric sensor 42 is installed on the part of the tool holder 4 close to the workbench 1. The piezoelectric sensor 42 is in communication with the interior of the tool holder 4. A Peltier cooler 43 is installed on the tool holder 4. The cooling surface of the Peltier cooler 43 is in contact with the cutting tool 41, and there is an electrical connection between the piezoelectric sensor 42 and the Peltier cooler 43.

[0028] The piezoelectric sensor 42 converts the ultrasonic vibration energy that is not fully utilized into electrical energy. According to the piezoelectric effect formula Q = d33 * F, where Q is the electric charge, d33 is the piezoelectric constant, and F is the acting force. After calculation, about 15 - 20% of the ultrasonic energy can be recovered during each cutting process. The recovered energy is used for tool cooling through the Peltier cooler 43, and the cooling effect can further extend the tool life by 20 - 25%.

[0029] A pulsed magnetic field generator 44 is installed on the tool holder 4, and there is an electrical connection between the pulsed magnetic field generator 44 and the piezoelectric sensor 42.

[0030] The pulsed magnetic field generator 44 generates an adjustable - frequency pulsed magnetic field of 0.5 - 1.5 T, and the frequency range is 50 - 200 Hz. The magnetic field is used to make the chips curl in a spiral shape, reduce secondary contact, and improve the surface quality.

[0031] The pulsed magnetic field generator 44 precisely controls the magnetic field distribution and intensity to achieve the directional curling and efficient discharge of the chips. It consists of the following parts: Programmable magnetic field generator: It uses a multi - pole electromagnet array to generate a local strong magnetic field of 0.8 - 2 T, and the magnetic field gradient can reach 500 - 800 T / m. By adjusting the current of each pole, the dynamic control of the magnetic field spatial distribution is realized; Chip morphology real - time monitoring system: It uses a high - speed camera and deep - learning algorithms to analyze the chip morphology in real time; Adaptive magnetic field control algorithm: Based on the chip monitoring results, the magnetic field parameters are dynamically adjusted to optimize the chip curling angle (target 45 - 60°) and pitch (0.5 - 1 mm). Under the action of the magnetic field, the chips start to curl immediately when leaving the tool tip. The formation of spiral chips reduces the secondary contact area with the workpiece, reduces the risk of surface scratching. At the same time, the spiral chips are more easily discharged, reducing the interference of chip accumulation on machining.

[0032] The limiting mechanism 3 includes an electric slide rail 31 oppositely installed on the workbench 1. A slide plate 32 is installed on the electric slide rail 31. The slide plate 32 is triangular, and the two lower corners are respectively slidably arranged inside the electric slide rail 31 through sliders. A first rotating shaft 33 is rotatably installed on the slide plate 32. A first disc 34 is installed on the first rotating shaft 33. A first support rod 35 is installed on the first disc 34. There are several first support rods 35, which are evenly arranged in an array on the first disc 34 and penetrate the round holes at one end of the transmission shaft one by one. A second disc 36 is installed on the output shaft of the servo motor 2. A second support rod 37 is installed on the second disc 36. There are several second support rods 37, which are evenly arranged in an array on the second disc 36 and penetrate the round holes at the other end of the transmission shaft one by one. The limiting mechanism 3 further includes a fixing member 38 installed on the workbench 1.

[0033] The fixing member 38 includes a resistance increasing piece 381 installed on the workbench 1. The resistance increasing piece 381 is located between the two electric slide rails 31. A first bracket 382 and a second bracket 383 are respectively installed on the slide plate 32. A hand wheel 384 is rotatably installed on the first bracket 382. A thread is provided at one end of the hand wheel 384 close to the workbench 1. A slide rod 385 is installed through the second bracket 383. The slide rod 385 is slidably connected to the second bracket 383. The slide rod 385 is hollow, and a thread groove matching the thread is provided inside. A resistance increasing plate 386 is fixed at one end of the slide rod 385 close to the resistance increasing piece 381.

[0034] The staff sleeved the round holes at the end of the transmission shaft close to the second disc 36 into the second support rods 37 one by one. Then the electric slide rail 31 was started, and the first support rods 35 on the first disc 34 were driven to move slowly synchronously through the slide plate 32 and the first rotating shaft 33. During this period, the staff manually rotated the first disc 34 to drive the first support rods 35 on the first disc 34 to correspond to the round holes at the other end of the transmission shaft respectively. After the first support rods 35 and the second support rods 37 clamped the two ends of the transmission shaft respectively, the preliminary limitation of the transmission shaft was completed. Then the staff rotated the hand wheel 384. Through the synchronous action of the thread and the limitation of the second bracket 383, the resistance increasing plate 386 at the top of the slide rod 385 was driven to closely fit the resistance increasing piece 381, and further fixation was completed.

[0035] The translation mechanism 5 is composed of two parts: a horizontal movement module 51 and a vertical height movement module 52. The vertical height movement module 52 is fixed to the tool holder 4.

[0036] The staff turns on the servo motor 2. The servo motor 2 drives the transmission shaft to rotate at high speed through the first disc 34 and the first support rod 35. The lateral movement module 51 and the vertical height movement module 52 are prior arts and can be realized by various means such as electric control rails or electric push rods, and have been widely used in various fields, so they will not be elaborated here. The vertical height movement module 52 drives the cutting tool 41 to approach the transmission shaft through the tool holder 4. Under the application of the ultrasonic transmitter 6, the cutting tool 41 vibrates. Since the transmission shaft often cannot directly cut to the appropriate size in a single time, when the distance from the finished product size requirement is large, such as more than 0.5 mm, low frequency is used for cutting. When the distance from the finished product size requirement is small, such as within 0.5 mm, high frequency is used for fine cutting. Due to the shortening of the fine grinding process time and the extension of the tool life, the single-piece processing cost can be reduced to about 170 - 175 yuan. The lateral movement module 51 is responsible for controlling the lateral position of the cutting tool 41.

[0037] That is, compared with the traditional processing equipment, the present application has improved production efficiency and reduced single-piece processing cost, showing significant progress.

[0038] Embodiment 2: On the basis of Embodiment 1, the present application proposes a further optimization method: A control terminal 7 is installed on the workbench 1. The control terminal 7 is electrically connected to the ultrasonic transmitter 6 and the pulsed magnetic field generator 44. The control terminal 7 is divided into two parts: an intelligent control unit and an intelligent distribution unit. Among them, the intelligent control unit adopts a deep reinforcement learning algorithm to adjust the ultrasonic amplitude, frequency and magnetic field parameters in real time according to the cutting load. The intelligent distribution unit adopts a fuzzy neural network algorithm to adjust the energy distribution ratio of each frequency band of the ultrasonic transmitter 6 in real time. The optimization range is 15 - 25% for high frequency and 75 - 85% for low frequency.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic processing device for a rear axle drive shaft of a new energy vehicle, comprising a workbench (1), on which a servo motor (2) is mounted, characterized in that: Also includes: a limiting mechanism (3), the limiting mechanism (3) being mounted on the workbench (1) and connected to the servo motor (2), the limiting mechanism (3) fixing both ends of the transmission shaft and driving the transmission shaft to rotate through the driving force provided by the servo motor (2); A tool holder (4), wherein the tool holder (4) is hollow and a cutting tool (41) is mounted on one end close to the workbench (1); A translation mechanism (5), the translation mechanism (5) being mounted on the workbench (1) and connected to the tool holder (4), the translation mechanism (5) driving the tool holder (4) to perform a lateral or longitudinal translation; An ultrasonic transmitter (6), the ultrasonic transmitter (6) being mounted on the tool holder (4), and having a transmitting port connected to the interior of the tool holder (4), the ultrasonic transmitter (6) transmitting ultrasonic waves into the tool holder (4) to drive the cutting tool (41) to vibrate during the cutting process, thereby reducing the cutting force during the cutting of the transmission shaft.

2. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 1 is characterized by: The ultrasonic vibration energy generated by the ultrasonic transmitter (6) through ultrasonic waves is divided into two frequency bands: low frequency (20-40kHz) and high frequency (40-60kHz), wherein the low frequency is used for cutting the transmission shaft in the initial processing stage to remove the main material, and the high frequency is used for fine cutting to improve the surface quality.

3. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 2 is characterized by: A reflective coating having a thickness of not less than 0.2 mm is arranged inside the tool holder (4).

4. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 3 is characterized by: A piezoelectric sensor (42) is installed at a portion of the tool holder (4) close to the workbench (1), and the piezoelectric sensor (42) is connected to the inside of the tool holder (4). A Peltier cooler (43) is installed on the tool holder (4), and a cooling surface of the Peltier cooler (43) is in contact with the cutting tool (41), and the piezoelectric sensor (42) and the Peltier cooler (43) are electrically connected.

5. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 4 is characterized by: A pulse magnetic field generator (44) is installed on the tool holder (4), and the pulse magnetic field generator (44) is electrically connected to the piezoelectric sensor (42).

6. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 5 is characterized by: The pulse magnetic field generator (44) generates a 0.5-1.5T adjustable frequency pulse magnetic field with a frequency range of 50-200 Hz, and utilizes the magnetic field to cause the chips to curl in a spiral shape, thereby reducing secondary contact and improving surface quality.

7. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 6 is characterized by: The limiting mechanism (3) comprises an electric slide rail (31) relatively mounted on the workbench (1), a slide plate (32) being mounted on the electric slide rail (31), the slide plate (32) being triangular in shape, and two corners of the lower end being slidably mounted inside the electric slide rail (31) via slide blocks, a first rotating shaft (33) being rotatably mounted on the slide plate (32), a first disc (34) being mounted on the first rotating shaft (33), a first support rod (35) being mounted on the first disc (34), a plurality of first support rods (35) being arranged evenly on the first disc (34) and penetrating the circular holes at one end of the transmission shaft one by one, a second disc (36) being mounted on the output shaft of the servo motor (2), a second support rod (37) being arranged evenly on the second disc (36) and penetrating the circular holes at the other end of the transmission shaft one by one, and the limiting mechanism (3) further comprises a fixing member (38) mounted on the workbench (1).

8. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 7 is characterized by: The fixing member (38) comprises a resistance increasing plate (381) mounted on the workbench (1), the resistance increasing plate (381) being located between the two electric slide rails (31), the slide plate (32) being respectively mounted with a first bracket (382) and a second bracket (383), the first bracket (382) being rotatably mounted with a hand wheel (384), the hand wheel (384) being provided with a thread at one end close to the workbench (1), a sliding rod (385) being installed through the second bracket (383), the sliding rod (385) being slidably connected to the second bracket (383), the sliding rod (385) being hollow and having a screw groove inside thereof that matches the thread, and a resistance increasing plate (386) being fixed at one end of the sliding rod (385) close to the resistance increasing plate (381).

9. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 8 is characterized by: The translation mechanism (5) is composed of two parts: a lateral movement module (51) and a vertical height movement module (52); the vertical height movement module (52) is fixed to the tool holder (4).

10. The automatic processing equipment for rear axle drive shaft of new energy vehicle according to claim 9 is characterized in that: A control terminal (7) is installed on the workbench (1). The control terminal (7) is electrically connected to the ultrasonic transmitter (6) and the pulse magnetic field generator (44). The control terminal (7) is divided into two parts: an intelligent control unit and an intelligent distribution unit. The intelligent control unit adopts a deep reinforcement learning algorithm to adjust the ultrasonic amplitude, frequency and magnetic field parameters in real time according to the cutting load. The intelligent distribution unit adopts a fuzzy neural network algorithm to adjust the energy distribution ratio of each frequency band of the ultrasonic transmitter (6) in real time according to the cutting load. The optimization range is 15-25% for high frequency and 75-85% for low frequency.

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