Machining method for laser quenching cutter point

Abstract

The invention discloses a machining method for a laser quenching cutter point, and belongs to the technical field of metal surface treatment and cutter machining. According to the method, efficient and uniform quenching of the cutter point is achieved through multi-beam laser composite scanning and artificial intelligence real-time feedback control; the method comprises the steps of workpiece pretreatment, multi-beam laser scanning, real-time monitoring and feedback control, post-treatment and quality evaluation. The method has the effects of reducing heat affected zones, improving hardening uniformity and reducing energy consumption.

Description

Technical Field

[0001] This invention relates to the fields of metal surface treatment and cutting tool processing technology, and in particular to a method for processing laser-quenched cutting edges. Background Technology

[0002] Laser hardening is a process that uses a laser beam to rapidly heat and cool the surface of a workpiece to achieve phase transformation hardening. Currently, the hardening treatment of cutting edges is a key process to improve the hardness, wear resistance and service life of cutting tools. Traditional hardening methods include flame hardening, induction hardening and salt bath hardening. Although these methods can improve the surface hardness of cutting tools to a certain extent, they have problems such as large heat-affected zone, severe deformation, high energy consumption and environmental pollution.

[0003] In recent years, laser quenching technology has gradually become a research hotspot in the field of tool quenching due to its advantages such as high energy density, small heat-affected zone, and strong controllability. However, existing laser quenching technologies still have the problem of uneven quenching layer leading to cracks in the cutting edge treatment of tools.

[0004] In response to the aforementioned technologies, there is an urgent need to design and develop a laser-hardened cutting edge processing method to solve the problem of uneven hardening layer leading to cracks in the cutting edge treatment of cutting tools. Summary of the Invention

[0005] To address the problem of cracks caused by uneven quenching layers in the processing of cutting tool edges, this application provides a method for processing laser-quenched cutting edges.

[0006] In the first aspect, the laser-quenched blade processing method provided in this application adopts the following technical solution: A method for processing laser-quenched blades includes the following steps: S1, workpiece pretreatment: the blade roller with the blade is installed on the clamping device, and the surface is cleaned and preheated at a temperature of 150-300°C. S2. Multi-beam laser scanning: At least two laser beams are used to scan the blade surface simultaneously. One beam is the main laser beam for rapid heating, and the other is the auxiliary laser beam for local temperature compensation and control of the cooling rate. S3. Real-time monitoring and feedback control: During the scanning process, infrared thermal imagers and acoustic emission sensors are used to monitor the temperature and stress changes on the blade surface in real time. The data is input into the artificial intelligence control system to dynamically adjust the laser power, scanning speed and spot overlap rate to maintain the uniformity of the hardened layer depth and hardness. S4. Post-processing: After scanning, allow natural cooling or controlled slow cooling, and perform low-temperature tempering if necessary. S5. Quality Assessment: Use an online hardness tester to verify the hardening effect and ensure that it meets the design requirements.

[0007] By adopting the above technical solution, this method achieves efficient and uniform quenching of the blade edge through multi-beam laser composite scanning and real-time feedback control with artificial intelligence. The steps include workpiece pretreatment, multi-beam laser scanning, real-time monitoring and feedback control, post-processing and quality assessment. Preheating the workpiece can reduce thermal stress. Through the multi-beam composite effect, heat input can be dispersed, reducing the risk of local overheating. The introduction of an artificial intelligence system enables real-time optimization, reduces human intervention, and improves the yield.

[0008] Preferably, in step S2, the scanning path of the laser scan is an adaptive spiral path, which is dynamically generated according to the geometry of the blade.

[0009] By adopting the above technical solution, the scanning path of laser scanning is an adaptive spiral path, which is dynamically generated according to the geometry of the blade. The adaptive scanning path and real-time feedback can ensure the consistency of the hardened layer and improve the quenching quality of the blade.

[0010] Preferably, in step S3, the artificial intelligence system is based on a deep learning algorithm.

[0011] By adopting the above technical solutions, the artificial intelligence system, based on deep learning algorithms, can optimize laser power, scanning speed, and spot overlap rate in real time to maintain the uniformity of hardened layer depth and hardness.

[0012] Preferably, in step S4, low-temperature tempering can be performed.

[0013] By adopting the above technical solution, the residual stress can be released by natural cooling or controlled slow cooling of the scanned blade roller. If the residual stress inside the blade after laser quenching is too high, or the martensitic structure is too brittle and hard, affecting the overall performance of the blade (especially toughness and dimensional stability), low-temperature tempering is required.

[0014] Secondly, the laser-quenched blade processing device provided in this application adopts the following technical solution: A laser-hardened blade processing apparatus includes a blade roller rotatably mounted on a machine base and a laser processing system disposed beside the blade roller. The laser processing system includes a first laser emitter, and a beam expander, a galvanometer scanning head, and a field lens are sequentially arranged along the transmission direction of the first laser emitter. The inlet of the galvanometer scanning head is coaxially connected to the outlet of the beam expander via a flange. The field lens is fixedly mounted at the outlet of the galvanometer scanning head and is positioned near the focal plane of the field lens. Multiple sets of the laser processing system can be arranged on the machine base.

[0015] By adopting the above technical solution, the cutting roller is rotated and mounted on the machine base. The laser processing system is equipped with 2 to 3 sets on the machine base. The laser processing system includes a first laser emitter, and a beam expander, a galvanometer scanning head, and a field lens are sequentially arranged along the transmission direction of the first laser emitter. The inlet of the galvanometer scanning head is coaxially connected to the outlet of the beam expander via a flange. The field lens is fixedly installed at the outlet of the galvanometer scanning head, positioned near the focal plane of the field lens. The laser does not need to contact the workpiece, avoiding mechanical wear and stress. The beam expander provides a precise and straight beam, ensuring that a large and small beam is formed throughout the entire processing plane after passing through the field lens. The uniform, energy-density-stable focused spot and the extremely low inertia of the galvanometer avoid the vibration and overshoot errors caused by inertia in traditional platforms, ensuring the uniformity of the depth and hardness of the hardened layer on the blade edge. Furthermore, the high-speed scanning of the galvanometer enables millisecond-level beam jumps, making the processing speed several times faster than traditional mechanical motion platforms. It is suitable for surface treatment of large areas such as blade rollers. One laser processing system can be set up to emit lasers to rapidly heat the blade edge on the blade roller, a second laser processing system can be set up to emit lasers to emit lasers to locally heat the blade edge on the blade roller and control the cooling rate, and a third laser processing system can be set up as a backup.

[0016] Preferably, the machine base is provided with a control mechanism for controlling the rotation of the cutter roller. The control mechanism includes a lower rotary seat rotatably mounted on the machine base, an upper rotary seat rotatably mounted above the lower rotary seat, and a positioning component for positioning the cutter roller. The upper rotary seat is vertically slidably mounted above the lower rotary seat. The lower end of the cutter roller is connected to the lower rotary seat through the positioning component, and the upper end of the cutter roller is connected to the upper rotary seat through the positioning component.

[0017] By adopting the above technical solution, the lower rotary seat is rotatably mounted on the machine base, and the upper rotary seat is vertically slidably mounted above the lower rotary seat. The lower end of the cutter roller is connected to the lower rotary seat through a positioning component, and the upper end of the cutter roller is connected to the upper rotary seat through a positioning component, driving the lower rotary seat to rotate. Under the connection of the lower rotary seat, the positioning component, the upper rotary seat, and the cutter roller, the cutter roller can be driven to rotate, which facilitates the quenching of the blade edge on the cutter roller.

[0018] Preferably, the control mechanism includes a storage seat disposed on the machine base, a mounting plate vertically slidably disposed on the storage seat, and a drive assembly for driving the mounting plate to move vertically. The mounting plate is located directly above the lower rotating seat, and the upper rotating seat is rotatably disposed within the mounting plate.

[0019] By adopting the above technical solution, the placement seat is set on the machine base, and the mounting plate is vertically slidably set on the placement seat. The mounting plate is located directly above the lower rotating seat, and the upper rotating seat is rotatably set inside the mounting plate. When it is necessary to fix cutter rollers of different heights, the mounting plate is adjusted to a suitable position through the drive component. First, the cutter roller is placed in the lower rotating seat. Then, the mounting plate is adjusted through the drive component to drive the upper rotating seat to move down and engage with the top of the cutter roller. Subsequently, the positioning component is used to fix the cutter roller, which facilitates the fixing of cutter rollers of different specifications.

[0020] Preferably, the positioning assembly includes a first lower clamping plate slidably disposed within the lower rotating seat, a second lower clamping plate cooperating with the first lower clamping plate, a first upper clamping plate slidably disposed within the upper rotating seat, and a second upper clamping plate cooperating with the first upper clamping plate. The second lower clamping plate is slidably disposed within the lower rotating seat. The first lower clamping plate and the second lower clamping plate can clamp the bottom end of the cutter roller. The second upper clamping plate is slidably disposed within the upper rotating seat. The first upper clamping plate and the second upper clamping plate can clamp the top end of the cutter roller.

[0021] By adopting the above technical solution, the first lower clamping plate and the second lower clamping plate are slidably disposed in the lower rotating seat, and the first lower clamping plate and the second lower clamping plate can clamp the bottom end of the cutter roller. The first upper clamping plate and the second upper clamping plate are slidably disposed in the upper rotating seat, and the first upper clamping plate and the second upper clamping plate can clamp the top end of the cutter roller, which facilitates fixing the cutter roller.

[0022] Preferably, the machine base is provided with a driving mechanism, the driving mechanism including an arc strip disposed on the machine base, a toothed arc block disposed on the arc strip, a mounting base slidably disposed on the machine base, a driving member disposed on the mounting base, a gear fixed on the output shaft of the driving member, and a limiting component for limiting the gear to disengage from the arc strip, the laser processing system is disposed on the mounting base, and the gear meshes with the toothed arc block.

[0023] By adopting the above technical solution, the mounting base is slidably set on the machine base, the laser processing system is set on the mounting base, the driving component is set on the mounting base, the gear is fixed on the output shaft of the driving component, the arc strip is set on the machine base, and the gear meshes with the toothed arc block. When it is necessary to move the laser processing system, the driving component drives the gear to rotate. Under the cooperation of the gear, the toothed arc block and the limiting component, the mounting base drives the laser processing system to slide on the machine base along the direction of the arc strip, which facilitates the sliding of the laser processing system.

[0024] Preferably, the limiting component includes a left side plate disposed on one side of the arc strip, a right side plate disposed on the other side of the arc strip, a first abutting wheel rotatably disposed on the left side plate, a second abutting wheel disposed below the first abutting wheel, a third abutting wheel rotatably disposed on the right side plate, and a fourth abutting wheel disposed below the third abutting wheel. The left side plate and the right side plate are disposed on the bottom surface of the mounting base. The second abutting wheel is rotatably disposed on the left side plate, and the fourth abutting wheel is rotatably disposed on the right side plate. The first abutting wheel and the third abutting wheel abut against the top surface of the toothed arc block, and the second abutting wheel and the fourth abutting wheel abut against the bottom surface of the toothed arc block.

[0025] By adopting the above technical solution, the left and right side plates are set on the bottom surface of the mounting base, with the left side plate set on one side of the arc strip and the right side plate set on the other side of the arc strip. The first and second abutting wheels are rotatably set on the left side plate, with the second abutting wheel set below the first abutting wheel. The third and fourth abutting wheels are rotatably set on the right side plate, with the fourth abutting wheel set below the third abutting wheel. The first and third abutting wheels abut against the top surface of the toothed arc block, and the second and fourth abutting wheels abut against the bottom surface of the toothed arc block, ensuring the stability of the mounting base sliding on the arc block.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. This method achieves efficient and uniform quenching of the cutting edge through multi-beam laser composite scanning and real-time feedback control with artificial intelligence. The steps include workpiece pretreatment, multi-beam laser scanning, real-time monitoring and feedback control, post-processing and quality assessment. Preheating the workpiece can reduce thermal stress. Through the multi-beam composite effect, heat input can be dispersed, reducing the risk of local overheating. The introduction of an artificial intelligence system enables real-time optimization, reduces human intervention, and improves the yield. 2. A cutting roller is rotatably mounted on the machine base. Two to three sets of laser processing systems are installed on the machine base. The laser processing system includes a first laser emitter. Along the transmission direction of the first laser emitter, a beam expander, a galvanometer scanning head, and a field lens are sequentially arranged. The inlet of the galvanometer scanning head is coaxially connected to the outlet of the beam expander via a flange. The field lens is fixedly installed at the outlet of the galvanometer scanning head, positioned near the focal plane of the field lens. The laser does not need to contact the workpiece, avoiding mechanical wear and stress. The beam expander provides a precise and straight beam, ensuring that after passing through the field lens, a uniform beam of size is formed throughout the entire processing plane. The focused spot with stable beam density and minimal galvanometer inertia avoids the vibration and overshoot errors caused by inertia in traditional platforms, ensuring the uniformity of the depth and hardness of the hardened layer on the blade edge. Furthermore, the high-speed scanning of the galvanometer enables millisecond-level beam jumps, making the processing speed several times faster than traditional mechanical motion platforms. It is suitable for surface treatment of large areas such as blade rollers. One laser processing system can be set up to emit lasers for rapid heating of the blade edge on the blade roller, a second laser processing system can be set up to emit lasers for localized heating and controlled cooling rate of the blade edge on the blade roller, and a third laser processing system can be set up as a backup. 3. The placement base is set on the machine platform, and the mounting plate is vertically slidably set on the placement base. The mounting plate is located directly above the lower rotating base, and the upper rotating base is rotatably set inside the mounting plate. When it is necessary to fix cutter rollers of different heights, the mounting plate is adjusted to the appropriate position through the drive component. First, the cutter roller is placed in the lower rotating base, and then the upper rotating base is moved down and locked onto the top of the cutter roller through the drive component. Then, the positioning component is used to fix the cutter roller, which is convenient for fixing cutter rollers of different specifications. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a laser-quenched blade processing device according to Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram of the upper rotary seat in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the overall structure of a laser-quenched blade processing device according to Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached figures: 1. Machine base; 2. Control mechanism; 21. Lower rotary seat; 22. Upper rotary seat; 23. Storage seat; 231. Sliding groove; 24. Mounting plate; 25. Drive assembly; 251. Second motor; 252. Screw; 253. Slider; 26. Positioning assembly; 261. First lower clamping plate; 262. Second lower clamping plate; 263. First upper clamping plate; 264. Second upper clamping plate; 3. Laser processing system; 31. First laser emitter; 32. Field lens; 4. Drive mechanism; 41. Arc strip; 42. Toothed arc block; 43. Mounting seat; 44. Drive component; 45. Gear; 46. Limiting assembly; 461. Left side plate; 462. Right side plate; 463. First abutting wheel; 464. Second abutting wheel; 465. Third abutting wheel; 466. Fourth abutting wheel. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a method for processing laser-hardened blades. The method for processing laser-hardened blades includes the following steps: S1. Workpiece pretreatment: Install the blade roller with the blade edge on the clamping device, and perform surface cleaning and preheating. The preheating temperature is 150-300°C. S2. Multi-beam laser scanning: At least two laser beams are used to scan the blade surface simultaneously. One beam is the main laser beam for rapid heating, and the other is the auxiliary laser beam for local temperature compensation and control of the cooling rate. S3. Real-time monitoring and feedback control: During the scanning process, infrared thermal imagers and acoustic emission sensors are used to monitor the temperature and stress changes on the blade surface in real time. The data is input into the artificial intelligence control system to dynamically adjust the laser power, scanning speed and spot overlap rate to maintain the uniformity of the hardened layer depth and hardness. S4. Post-processing: After scanning, allow natural cooling or controlled slow cooling, and perform low-temperature tempering if necessary. S5. Quality Assessment: Use an online hardness tester to verify the hardening effect and ensure that it meets the design requirements.

[0033] This method achieves efficient and uniform quenching of the cutting edge through multi-beam laser composite scanning and real-time feedback control using artificial intelligence. The steps include workpiece pretreatment, multi-beam laser scanning, real-time monitoring and feedback control, post-processing, and quality assessment. Preheating the workpiece can reduce thermal stress. Through the multi-beam composite effect, heat input can be dispersed, reducing the risk of local overheating. The introduction of an artificial intelligence system enables real-time optimization, reduces human intervention, and improves the yield.

[0034] The laser scanning path is an adaptive spiral path, dynamically generated according to the blade geometry. The adaptive scanning path and real-time feedback can ensure the consistency of the hardened layer and improve the quenching quality of the blade.

[0035] The artificial intelligence system, based on deep learning algorithms, can optimize laser power, scanning speed, and spot overlap in real time to maintain the uniformity of hardened layer depth and hardness.

[0036] Natural cooling or controlled slow cooling of the scanned blade roller can release residual stress. If the residual stress inside the blade after laser quenching is too high, or the martensitic structure is too brittle and hard, affecting the overall performance of the blade (especially toughness and dimensional stability), low-temperature tempering is required.

[0037] This application also discloses a processing apparatus for laser-quenched blades.

[0038] Example 1 Reference Figure 1 As shown, a laser-hardened blade processing device includes a machine base 1, a blade roller, a control mechanism 2, and a laser processing system 3. The machine base 1 is horizontally arranged.

[0039] Reference Figure 1 As shown, in this embodiment, the laser processing system 3 is preferably set in two groups on the machine tool 1. The laser processing system 3 includes a first laser emitter 31. A beam expander, a galvanometer scanning head and a field lens 32 are arranged sequentially along the transmission direction of the first laser emitter 31. The inlet of the galvanometer scanning head is coaxially connected to the outlet of the beam expander through a flange. The field lens 32 is fixedly installed at the outlet of the galvanometer scanning head and is placed near the focal plane of the field lens 32. Reference Figure 1 As shown, the laser does not need to contact the workpiece, avoiding mechanical wear and stress. The beam expander provides a precise and straight beam, ensuring that a focused spot of uniform size and stable energy density is formed throughout the entire processing plane after passing through the field lens 32. The galvanometer has extremely low inertia, avoiding the vibration and overshoot errors caused by inertia in traditional platforms, ensuring the uniformity of the depth and hardness of the blade hardening layer. Moreover, the high-speed scanning of the galvanometer enables millisecond-level beam jumps, making the processing speed several times faster than traditional mechanical motion platforms, suitable for large-area surface treatment such as blade rollers. Reference Figure 1 As shown, one set of laser processing system 3 is used to emit lasers to rapidly heat the blade edge on the cutter roller, while the other set of laser processing system 3 is used to emit lasers to locally heat the blade edge on the cutter roller and control the cooling rate.

[0040] Reference Figure 1As shown, the control mechanism 2 includes a first motor, a lower rotating seat 21, an upper rotating seat 22, a storage seat 23, a mounting plate 24, a drive assembly 25, and a positioning assembly 26. The first motor is located inside the machine base 1, and the lower rotating seat 21 is fixed to the output shaft of the first motor. The lower rotating seat 21 is rotatably mounted on the machine base 1.

[0041] Reference Figure 1 As shown, the storage seat 23 is disposed on the top surface of the machine base 1. A sliding groove 231 is provided on the side of the storage seat 23 near the lower rotating seat 21. The drive assembly 25 includes a second motor 251, a screw 252 and a slider 253. The second motor 251 is disposed on the top surface of the storage seat 23. The screw 252 is fixed on the output shaft of the second motor 251. The screw 252 is rotatably disposed in the sliding groove 231 and is rotatably disposed in the machine base 1. The slider 253 is threaded onto the screw 252 and is vertically slidably disposed in the sliding groove 231. The mounting plate 24 is connected to the slider 253.

[0042] Reference Figure 1 As shown, the mounting plate 24 is located directly above the lower rotating seat 21. A lower positioning groove is provided on the top surface of the lower rotating seat 21. The upper rotating seat 22 is rotatably disposed inside the mounting plate 24. The upper rotating seat 22 is located directly above the lower rotating seat 21. A lower positioning groove is provided on the bottom surface of the upper rotating seat 22.

[0043] Reference Figure 1 and Figure 2 As shown, the positioning assembly 26 includes a first lower clamping plate 261, a second lower clamping plate 262, a first upper clamping plate 263, and a second upper clamping plate 264. The first lower clamping plate 261 and the second lower clamping plate 262 are slidably disposed in the lower positioning groove, and the first lower clamping plate 261 and the second lower clamping plate 262 can clamp the bottom end of the cutter roller.

[0044] Reference Figure 1 and Figure 2 As shown, the first upper clamping plate 263 and the second upper clamping plate 264 are slidably disposed in the upper positioning groove. The first upper clamping plate 263 and the second upper clamping plate 264 can clamp the top of the cutter roller. The first lower clamping plate 261, the second lower clamping plate 262, the first upper clamping plate 263 and the second upper clamping plate 264 are all driven to slide by telescopic cylinders.

[0045] Reference Figure 1 and Figure 2 As shown, the lower rotating seat 21 is driven to rotate by the first motor. Under the connection of the lower rotating seat 21, the first lower clamping plate 261, the second lower clamping plate 262, the first upper clamping plate 263, the second upper clamping plate 264, the upper rotating seat 22 and the cutter roller, the cutter roller can be driven to rotate, which facilitates the quenching of the blade edge on the cutter roller.

[0046] The implementation principle of Example 1 is as follows: When quenching the cutter roller, the mounting plate 24 is adjusted to a suitable position by the drive assembly 25. The cutter roller is first placed in the lower rotating seat 21. Then, the upper rotating seat 22 is moved down and locked onto the top of the cutter roller by the drive assembly 25 adjusting the mounting plate 24. Subsequently, the cutter roller is fixed by the positioning assembly 26. Two laser beams are used to scan the blade surface simultaneously. One beam is the main laser beam for rapid heating, and the other is the auxiliary laser beam for local heating and controlling the cooling rate. Through the composite scanning of two laser beams and real-time feedback control by artificial intelligence, efficient and uniform quenching of the blade edge is achieved.

[0047] Example 2 Reference Figure 3 As shown, a drive mechanism 4 is provided on the machine base 1. The drive mechanism 4 includes an arc strip 41, a toothed arc block 42, a mounting base 43, a drive component 44, a gear 45, and a limiting component 46. The arc strip 41 is provided on the top surface of the machine base 1. In this embodiment, the mounting base 43, the drive component 44, the gear 45, and the limiting component 46 are preferably provided in two sets, and the mounting base 43, the drive component 44, the gear 45, and the limiting component 46 correspond one-to-one.

[0048] Reference Figure 3 As shown, the drive unit 44 is mounted on the mounting base 43, and the gear 45 is fixed on the output shaft of the drive unit 44. The gear 45 is rotatably mounted on the mounting base 43 and meshes with the toothed arc block 42. The laser processing system 3 is mounted on the mounting base 43. When the laser processing system 3 needs to be moved, the drive unit 44 drives the gear 45 to rotate. Under the cooperation of the gear 45, the toothed arc block 42 and the limiting component 46, the mounting base 43 drives the laser processing system 3 to slide along the direction of the arc groove on the machine base 1, which facilitates the sliding of the laser processing system 3. In this embodiment, the drive unit 44 is preferably a motor.

[0049] Reference Figure 3 As shown, each mounting base 43 is provided with two sets of limiting components 46. The limiting components 46 include a left side plate 461, a right side plate 462, a first abutting wheel 463, a second abutting wheel 464, a third abutting wheel 465, and a fourth abutting wheel 466. The left side plate 461 and the right side plate 462 are disposed on the bottom surface of the mounting base 43. The left side plate 461 is disposed on one side of the arc strip 41, and the right side plate 462 is disposed on the other side of the arc strip 41. The first abutting wheel 463 and the second abutting wheel 464 both rotate. The first abutment wheel 463 is rotatably mounted on the left side plate 461. The second abutment wheel 464 is located below the first abutment wheel 463. The third abutment wheel 465 and the fourth abutment wheel 466 are rotatably mounted on the right side plate 462. The fourth abutment wheel 466 is located below the third abutment wheel 465. The first abutment wheel 463 and the third abutment wheel abut against the top surface of the toothed arc block 42. The second abutment wheel 464 and the fourth abutment wheel 466 abut against the bottom surface of the toothed arc block 42, ensuring the stability of the mounting seat 43 sliding on the arc block.

[0050] The implementation principle of Example 2 is as follows: When one set of laser processing systems 3 is needed to rapidly heat the blade edge on the cutter roller using lasers, and another set of laser processing systems 3 is needed to locally heat the blade edge on the cutter roller and control the cooling rate, the drive mechanism 4 is used to adjust the laser processing system 3 to a suitable position, and then the positioning mechanism is used to position and adjust the laser processing system 3. Subsequently, the two sets of laser processing systems 3 perform quenching treatment on the blade edge on the cutter roller. When it is not necessary for the additional set of laser processing systems 3 to emit auxiliary laser beams to locally heat the blade edge on the cutter roller and control the cooling rate, the drive mechanism 4 is used to adjust the laser processing system 3 to a suitable position, and multiple sets of laser processing systems 3 can simultaneously perform quenching treatment on the blade edge at different positions on the cutter roller, improving quenching efficiency.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for processing laser-quenched blades, characterized in that, Includes the following steps: S1. Workpiece pretreatment: Install the blade roller with the blade edge on the clamping device, and perform surface cleaning and preheating. The preheating temperature is 150-300°C. S2. Multi-beam laser scanning: At least two laser beams are used to scan the blade surface simultaneously. One beam is the main laser beam for rapid heating, and the other is the auxiliary laser beam for local temperature compensation and control of the cooling rate. S3. Real-time monitoring and feedback control: During the scanning process, infrared thermal imagers and acoustic emission sensors are used to monitor the temperature and stress changes on the blade surface in real time. The data is input into the artificial intelligence control system to dynamically adjust the laser power, scanning speed and spot overlap rate. S4. Post-processing: After scanning, allow for natural cooling or controlled slow cooling. S5. Quality Assessment: Use an online hardness tester to verify the hardening effect and ensure that it meets the design requirements.

2. The method for processing a laser-quenched blade according to claim 1, characterized in that: In step S2, the scanning path of the laser scan is an adaptive spiral path, which is dynamically generated according to the geometry of the blade.

3. The method for processing a laser-quenched blade according to claim 1, characterized in that: In step S3, the artificial intelligence system is based on a deep learning algorithm.

4. The method for processing a laser-quenched blade according to claim 1, characterized in that: In step S4, low-temperature tempering can be performed.

5. A laser-hardened blade processing apparatus, based on the laser-hardened blade processing method according to claim 1, characterized in that: it includes a blade roller rotatably mounted on a machine base (1), and a laser processing system (3) mounted next to the blade roller. The laser processing system (3) includes a first laser emitter (31), and a beam expander, a galvanometer scanning head, and a field lens (32) are sequentially arranged along the transmission direction of the first laser emitter (31). The inlet of the galvanometer scanning head is coaxially connected to the outlet of the beam expander through a flange. The field lens (32) is fixedly mounted at the outlet of the galvanometer scanning head and is placed near the focal plane of the field lens (32). Multiple sets of the laser processing system (3) can be arranged on the machine base (1).

6. The processing apparatus for laser-quenched blades according to claim 5, characterized in that: The machine base (1) is provided with a control mechanism (2) for controlling the rotation of the cutter roller. The control mechanism (2) includes a lower rotary seat (21) rotatably mounted on the machine base (1), an upper rotary seat (22) rotatably mounted above the lower rotary seat (21), and a positioning component (26) for positioning the cutter roller. The upper rotary seat (22) is vertically slidably mounted above the lower rotary seat (21). The lower end of the cutter roller is connected to the lower rotary seat (21) through the positioning component (26), and the upper end of the cutter roller is connected to the upper rotary seat (22) through the positioning component (26).

7. The processing apparatus for laser-quenched blades according to claim 6, characterized in that: The control mechanism (2) includes a storage seat (23) disposed on the machine base (1), a mounting plate (24) vertically slidably disposed on the storage seat (23), and a drive assembly (25) for driving the mounting plate (24) to move vertically. The mounting plate (24) is located directly above the lower rotating seat (21), and the upper rotating seat (22) is rotatably disposed within the mounting plate (24).

8. The processing apparatus for laser-quenched blades according to claim 6, characterized in that: The positioning component (26) includes a first lower clamping plate (261) slidably disposed in the lower rotating seat (21), a second lower clamping plate (262) cooperating with the first lower clamping plate (261), a first upper clamping plate (263) slidably disposed in the upper rotating seat (22), and a second upper clamping plate (264) cooperating with the first upper clamping plate (263). The second lower clamping plate (262) is slidably disposed in the lower rotating seat (21). The first lower clamping plate (261) and the second lower clamping plate (262) can clamp the bottom end of the cutter roller. The second upper clamping plate (264) is slidably disposed in the upper rotating seat (22). The first upper clamping plate (263) and the second upper clamping plate (264) can clamp the top end of the cutter roller.

9. The processing apparatus for laser-quenched blades according to claim 5, characterized in that: The machine base (1) is provided with a drive mechanism (4), which includes an arc strip (41) on the machine base (1), a toothed arc block (42) on the arc strip (41), a mounting base (43) slidably disposed on the machine base (1), a drive member (44) on the mounting base (43), a gear (45) fixed on the output shaft of the drive member (44), and a limiting component (46) for limiting the gear (45) to disengage from the arc strip (41). The laser processing system (3) is disposed on the mounting base (43), and the gear (45) meshes with the toothed arc block (42).

10. The processing apparatus for laser-quenched blades according to claim 9, characterized in that: The limiting component (46) includes a left side plate (461) disposed on one side of the arc (41), a right side plate (462) disposed on the other side of the arc (41), a first abutting wheel (463) rotatably disposed on the left side plate (461), a second abutting wheel (464) disposed below the first abutting wheel (463), a third abutting wheel (465) rotatably disposed on the right side plate (462), and a fourth abutting wheel (464) disposed below the third abutting wheel (465). 66), the left side plate (461) and the right side plate (462) are disposed on the bottom surface of the mounting base (43), the second abutting wheel (464) is rotatably disposed on the left side plate (461), the fourth abutting wheel (466) is rotatably disposed on the right side plate (462), the first abutting wheel (463) and the third abutting wheel abut against the top surface of the toothed arc block (42), and the second abutting wheel (464) and the fourth abutting wheel (466) abut against the bottom surface of the toothed arc block (42).

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