A laser quenching head
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN XINGHONG OPTOELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-30
Smart Images
Figure CN224430632U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal heat treatment technology, specifically to a laser quenching head. Background Technology
[0002] Laser hardening is a quenching technique that uses a laser to heat the surface of a material above its phase transformation point. As the material cools naturally, austenite transforms into martensite, thus hardening the surface. Laser hardening of metal surfaces offers advantages such as high heating and cooling rates, short process cycles, and no need for external quenching media. It provides unique benefits including minimal workpiece deformation, a clean working environment, no need for post-processing finishing such as grinding, and the workpiece size is not limited by the size of the heat treatment equipment.
[0003] In laser quenching, the focusing method of the lens is limited to a circular spot, and the energy distribution of the spot is uneven. Non-circular spot optical path designs are overly complex, resulting in high design and manufacturing costs and bulky structures. Insufficient heat dissipation at high power leads to poor stability. Traditional laser quenching heads, when operating continuously at high power (e.g., exceeding 8000W), suffer from inadequate heat dissipation design, easily leading to optical path deviation or thermal deformation due to excessive temperature rise, affecting processing accuracy and equipment lifespan. For example, in existing equipment, when the power is increased to 12000W, the temperature of the focusing lens gradually rises with the duration of light transmission, resulting in a significant thermal lensing effect, which greatly affects the focal length and spot quality. Structural design limits spatial adaptability. The spatial limitations of the cylindrical structure: Traditional cylindrical quenching heads struggle to flexibly adjust the spot position in confined or complex spaces. For example, when quenching turbine blades on both sides, multiple processing steps are required, leading to low efficiency and uneven performance. High maintenance costs and lack of modularity lead to complex maintenance: Replacing the existing quenching head protective lens requires disassembling the entire optical path, resulting in long downtime. Furthermore, cleaning heat dissipation modules (such as water-cooling channels) is difficult, and scale buildup can easily reduce efficiency. High equipment costs: High-power lasers and their associated heat dissipation systems are expensive, and the loading and unloading process for large equipment (such as oil drill pipe quenching devices) is cumbersome, increasing production costs. Utility Model Content
[0004] This invention provides a laser quenching head that solves the problems of insufficient heat dissipation, large space limitation of the straight-through structure, and difficulty in replacing the protective lens in the existing laser quenching head during high-power continuous operation.
[0005] The technical solution of this utility model is as follows: it includes a collimation section and a focusing section, wherein the collimation section and the focusing section are connected in an L-shaped structure;
[0006] The collimation section includes an input connector, a collimating lens group, and a reflecting mirror group connected in sequence. The collimating lens group is equipped with a collimating lens inside. The optical path incident end of the reflecting mirror group is connected to the collimating lens group, and the optical path exit end is connected to the focusing section. The angle between the reflecting surface of the reflecting mirror group and the laser optical path is 30~60°.
[0007] The focusing section includes a focusing protection component, the optical path incident end of which is connected to the optical path exit end of the reflector group, and the focusing protection component is provided with a protective lens.
[0008] Preferably, the reflector assembly includes a housing, an integrating copper mirror, and a reflector mounting base; the housing has a through hole, and a reflecting hole is formed on the side of the through hole, penetrating the housing and perpendicular to the through hole, the through hole and the reflecting hole forming a T-shape; the integrating copper mirror includes a reflecting part and a heat dissipation part, the outer side of the heat dissipation part is cylindrical, located in the through hole, one end of the heat dissipation part facing the collimating lens is an inclined surface, the other end is fixedly connected to the reflector mounting base, the inclined surface faces the reflecting hole, the angle between the inclined surface and the through hole is 30~60°, the reflecting part is fixed on the inclined surface of the heat dissipation part, and the reflector mounting base is fixedly connected to the housing.
[0009] Preferably, the inclined surface of the heat dissipation part has a groove in the horizontal direction in the center, and each end of the bottom of the groove has a through hole that runs through the heat dissipation part along the axial direction; the reflector mounting base has two through holes, which correspond one-to-one with and communicate with the two through holes on the heat dissipation part, and each of the two through holes of the reflector mounting base has a pipe joint.
[0010] Preferably, the reflector mounting base includes a boss extending into a through hole in the reflector housing and a mounting base body located outside the reflector housing. The end face of the boss is in contact with the end face of the heat dissipation part, and the mounting base body is fixedly connected to the housing.
[0011] Preferably, the focusing protection assembly includes a connecting plate, a protective lens holder, a lens holder, and a protective lens. The upper surface of the protective lens holder has a groove, and one side of the groove extends to the outer side of the protective lens holder to form a notch. The bottom of the groove has a through hole. The lens holder is disposed in the groove of the protective lens holder and can be pulled outward from the notch on the side of the groove by external force. The lens holder has a through hole in the center. The protective lens is disposed in the through hole of the lens holder. The connecting plate is disposed on the upper surface of the protective lens holder and is fixedly connected to the protective lens holder and the outer shell by bolts. The connecting plate has a through hole in the center.
[0012] Preferably, the outer edge of the upper end face of the protective lens is provided with a pressure ring, and the outer edge of the lower end face is provided with a sealing ring. The lower end face of the sealing ring abuts against the bottom surface of the groove of the protective lens holder. The upper end face of the pressure ring is provided with an annular groove, and a sealing ring is provided in the annular groove. The sealing ring abuts against the lower surface of the connecting plate. An operating block is fixedly connected to one side of the notch of the protective lens holder on the lens holder. The operating block is located outside the groove of the protective lens holder. By pulling the operating block, the lens holder can be pulled out from the protective lens holder.
[0013] Preferably, it also includes a water cooling system, which includes a first water cooling channel located inside the outer casing. The inlet and outlet of the first water cooling channel are both located on the lower surface of the outer casing. The connecting plate is provided with two through holes as transition channels. The upper ports of the two transition channels are respectively connected to the inlet and outlet of the first water cooling channel in the upper outer casing. The protective mirror base is provided with two second water cooling channels. The two second water cooling channels are respectively located on both sides of the groove of the protective mirror base. One end of the two second water cooling channels is located on the upper surface of the protective mirror base and is respectively connected to the two upper transition channels. The other end is located on the side of the protective mirror base and is respectively connected to a pipe joint.
[0014] Preferably, the first water-cooling channel includes two inverted and parallel U-shaped channels, one end of which is connected and the other end is a water inlet and a water outlet, respectively, and the straight through hole inside the outer shell is located below the U-shaped through hole.
[0015] Preferably, the optical path output end of the focusing protection component is provided with an air knife assembly. The air knife assembly includes an air knife mounting base, an air knife body, an air intake module, a main body base, and an air intake cover. The air knife mounting base has a through hole in the center, its upper end is fixedly connected to the protective lens base, and its lower end is fixedly connected to the upper surface of the air knife body. The lower end of the air knife body is fixed to the main body base, and the air knife body has a longitudinal through-hole and an opening on one side. The main body base includes two parallel base plates and an air outlet pressure plate connected between one end of the two base plates. The lower surface of the air knife body is fixed to... On the two base plates, the air intake module is fixed on the side of the two base plates away from the opening of the air knife body. The air intake module has an air intake channel, and a pipe connector is connected to the upper end of the air intake channel. An air outlet is provided on the lower side, and the air outlet faces the side of the air outlet pressure plate. The air inlet cover is fixed on the air outlet pressure plate. The inside of the air inlet cover is a cavity with an opening on one side. The lower part of the other side opposite to the opening has a notch. The side opening of the air inlet cover is connected to the air outlet of the air intake module. The notch on the other side of the air inlet cover is spaced apart from the upper surface of the air outlet pressure plate.
[0016] Preferably, a dual-air system is provided below the main body base. The dual-air system includes a dual-air body, an upper air blade, and a lower air blade. The upper air blade is fixedly connected to the main body base. The dual-air body is fixed between the upper and lower air blades. The dual-air body is a horizontally arranged U-shaped block. The opening of the U-shaped block faces the side opening of the air blade body. A groove is formed on the lower surface of the U-shaped block near the bottom. There is a gap between the lower edge of the side wall of the groove facing the opening of the U-shaped block and the upper surface of the lower air blade. A through hole is also formed on the side wall of the groove. A pipe connector is connected to the outer port of the through hole.
[0017] The beneficial effects of this utility model are as follows:
[0018] 1. By designing the collimation section and focusing section to form a compact L-shaped structure through the turning of the reflector, the size of the equipment is greatly reduced, making it more suitable for integration into robotic arms or narrow processing spaces.
[0019] 2. Modular design: The reflector assembly and focusing protection assembly can be disassembled and maintained independently (replacing the protective lens or cleaning the reflector), without the need to disassemble the entire optical path, significantly reducing downtime and maintenance costs; the lens holder in the focusing protection assembly can be pulled out from the notch on the side of the groove of the protective lens holder. The setting of the operating block facilitates the pulling out of the lens holder, making the replacement of the protective lens more convenient and improving the maintenance efficiency of the equipment.
[0020] 3. Precise positioning via the copper mirror mounting bracket ensures accurate beam bending. The reflector assembly is equipped with a heat dissipation unit and a water cooling system, which effectively removes the heat generated by the integrating copper mirror during operation, preventing excessive temperature from affecting the performance and lifespan of the integrating copper mirror and enhancing the heat dissipation performance of the equipment.
[0021] 4. Dual protection mechanism: The air knife assembly and the secondary air system are equipped with double-layer air curtain protection, plus downward airflow protection. Multiple protections prevent the protective mirror from being contaminated and extend its service life. Attached Figure Description
[0022] Figure 1 A schematic diagram of the structure of a laser quenching head provided for an embodiment of this utility model;
[0023] Figure 2 A front view provided for an embodiment of this utility model;
[0024] Figure 3 A cross-sectional view provided for an embodiment of this utility model;
[0025] Figure 4 This is a schematic diagram of the reflector housing structure provided in an embodiment of the present utility model;
[0026] Figure 5 A schematic diagram of the integrating copper mirror structure provided in this embodiment of the utility model;
[0027] Figure 6 This is a schematic diagram of the interior of the integrating bronze mirror provided in an embodiment of the present utility model;
[0028] Figure 7 A schematic diagram of the heat dissipation component structure provided in an embodiment of this utility model;
[0029] Figure 8 Exploded view of the focusing protection component provided in this embodiment of the utility model;
[0030] Figure 9 A schematic diagram of the focusing protection component structure provided in this embodiment of the utility model.
[0031] Figure 10 A schematic diagram of the water-cooling channel inside the reflector housing provided in this embodiment of the utility model;
[0032] Figure 11 A schematic diagram of the connecting plate structure provided in an embodiment of this utility model;
[0033] Figure 12 A schematic diagram of the water-cooling channel inside the protective mirror mount provided in this embodiment of the utility model;
[0034] Figure 13 This is a schematic diagram of the air knife assembly structure provided in an embodiment of the present utility model;
[0035] Figure 14 This is a schematic diagram of the internal structure of the air knife assembly provided in an embodiment of the present utility model;
[0036] Figure 15 Provided for the embodiments of this utility model Figure 14 Enlarged view of C;
[0037] Figure 16 A schematic diagram of the main base structure provided in an embodiment of this utility model;
[0038] Figure 17 This is a schematic diagram of the air inlet cover structure provided in an embodiment of the present utility model;
[0039] Figure 18 A schematic diagram of the main structure of the two-stage gas supply provided in an embodiment of this utility model.
[0040] The attached figures are labeled as follows:
[0041] 1. Collimation section; 11. Input connector; 12. Collimating lens assembly; 13. Reflector assembly; 131. Reflector housing; 1311. Through hole; 1312. Reflection aperture; 132. Reflecting part; 133. Heat dissipation part; 134. Reflector mounting base; 135. First pipe connector; 136. Integrating copper mirror;
[0042] 2. Focusing section; 21. Focusing protection assembly; 211. Protective lens; 212. Connecting plate; 213. Protective lens mount; 214. Lens holder; 215. Pressure ring; 216. Plug seal; 217. Sealing ring; 218. Operating block;
[0043] 3. Water cooling system; 31. First water cooling passage; 32. Transition passage; 33. Second water cooling passage; 34. Second pipe joint;
[0044] 4. Air knife assembly; 41. Air knife mounting bracket; 42. Air knife body; 43. Air intake module;
[0045] 431. First air inlet connector; 44. Main body base; 45. Air inlet cover; 451. First partition; 46. Air outlet pressure plate;
[0046] 5. Secondary air system; 51. Secondary air body; 511. Secondary air body groove; 512. Secondary air body through hole; 513. Secondary spacer; 52. Upper air blade; 53. Lower air blade; 54. Secondary air inlet connector; 6. Laser optical path. Detailed Implementation
[0047] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0048] like Figure 1-3 As shown, the technical solution of this utility model includes a collimation section 1 and a focusing section 2, which are connected in an L-shaped structure.
[0049] Collimation section 1 includes an input connector 11, a collimating lens group 12, and a reflecting mirror group 13 connected in sequence. The collimating lens group 12 contains a collimating lens 121. The incident end of the light path of the reflecting mirror group 13 is connected to the collimating lens group 12, and the exit end is connected to the focusing section 2. The angle between the reflecting surface of the reflecting mirror group 13 and the laser light path 6 is 30-60 degrees, preferably 45 degrees, to ensure that the laser beam accurately enters the focusing section 2 after reflection, reducing light path deviation. The reflecting mirror group 13 includes a reflecting mirror housing 131, an integrating copper mirror 136, and a reflecting mirror mounting base 134.
[0050] like Figure 4 and Figure 5As shown, the reflector housing 131 has a through hole 1311 inside, and a reflecting hole 1312 is formed on the side of the through hole 1311, penetrating the reflector housing 131 and perpendicular to the through hole. The through hole 1311 and the reflecting hole 1312 form a T-shaped structure. The integrating copper mirror 136 includes a reflecting part 132 and a heat dissipation part 133. The outer surface of the heat dissipation part 133 is cylindrical and fits tightly with the inner wall of the through hole 1311 to reduce optical path interference caused by gaps. It is made of copper alloy material with high thermal conductivity and can quickly conduct heat. One end face of it facing the collimating lens 121 is an inclined surface, and the other end face is connected to the reflector mounting base 134. The reflector 132 is fixedly connected to the heat dissipation unit 133, with its inclined surface facing the reflecting aperture. The angle between the inclined surface and the through aperture is 45°. The reflector 132 is welded and fixed to the inclined surface of the heat dissipation unit 133. The integrating copper mirror 136 has excellent reflectivity and resistance to high-power laser irradiation. It can efficiently reflect the collimated laser beam to the focusing section 2, and at the same time, it can homogenize the laser beam, making the laser energy distribution more uniform. The reflector mounting base 134 is made of stainless steel and is fixedly connected to the housing 131 with bolts. The connection is firm and reliable, and can effectively prevent the heat dissipation unit 133 from shifting during operation.
[0051] like Figure 6 and Figure 7 As shown, a groove 1331 running horizontally is formed in the center of the inclined surface of the heat dissipation part 133. A through hole 1332 extending axially through the heat dissipation part 133 is formed at each end of the bottom of the groove. The reflector mounting base 134 has two through holes, which correspond one-to-one with and communicate with the two through holes on the heat dissipation part 133. These two through holes form a cooling water path, allowing cooling water to flow inside the heat dissipation part 133 and quickly remove the heat transferred by the integrating copper mirror 136. Each of the two through holes in the reflector mounting base 134 has a first pipe connector 135, which can be connected to an inlet pipe and an outlet pipe respectively, enabling the circulation of cooling water.
[0052] The reflector mounting base 134 includes a boss that extends into the through hole of the reflector housing 131 and a mounting base body located outside the reflector housing 131. The end face of the boss is in contact with the end face of the heat dissipation part 133, which can enhance the heat conduction between the two. The mounting base body is fixedly connected to the reflector housing 131 by bolts.
[0053] The focusing section 2 includes a focusing protection component 21. The light path incident end of the focusing protection component 21 is connected to the light path exit end of the reflector group 13. The focusing protection component 21 is provided with a protective lens 211. The protective lens 211 is made of high light transmittance quartz glass, which can effectively block external dust, splashes and other objects from entering the focusing system and protect the internal optical components.
[0054] like Figure 8 and Figure 9As shown, the focusing protection assembly 21 includes a connecting plate 212, a protective lens holder 213, a lens bracket 214, and a protective lens 211. The upper surface of the protective lens holder 213 has a groove, one side of which extends to the outer surface of the protective lens holder 213 to form a notch, providing a channel for removing the lens bracket 214. The bottom of the groove has a through hole to facilitate the passage of the laser beam. The lens bracket 214 is located within the groove of the protective lens holder 213, and a through hole is located in the center of the lens bracket 214. The protective lens 211 is located within the through hole of the lens bracket 214. The connecting plate 212 is located on the upper surface of the protective lens holder 213 and is fixedly connected to the protective lens holder 213 and the reflector housing 131 respectively by bolts. The connecting plate 212 also has a through hole in its center.
[0055] The outer edge of the upper end face of the protective lens 211 is provided with a pressure ring 215, which is fixedly connected to the lens holder 214 by bolts, so that the protective lens 211 can be firmly fixed on the lens holder 214. The outer edge of the lower end face is provided with a plug seal 216, which can play a good sealing role and prevent dust and moisture from entering. The lower end face of the plug seal 216 abuts against the bottom surface of the groove of the protective lens base 213. The upper end face of the pressure ring 215 is provided with an annular groove, and a sealing ring 217 is provided in the annular groove. The sealing ring 217 abuts against the lower surface of the connecting plate 212. An operating block 218 is fixedly connected to one side of the lens holder 214 located at the notch of the protective lens base 213. The operating block 218 is located outside the groove of the protective lens base 213. By pulling the operating block 218, the lens holder 214 can be easily pulled out from the protective lens base 213, which facilitates the replacement of the protective lens 211.
[0056] The laser quenching head also includes a water cooling system 3, which includes a first water cooling channel 31 located inside the reflector housing 131. The inlet and outlet of the first water cooling channel 31 are both located on the lower surface of the reflector housing 131. The connecting plate 212 is provided with two through holes as transition channels 32. The upper ports of the two transition channels 32 are respectively connected to the inlet and outlet of the first water cooling channel 31 of the upper reflector housing 131. The protective mirror base 213 is provided with two second water cooling channels 33. The two second water cooling channels 33 are respectively located on both sides of the groove of the protective mirror base 213. One end of the two second water cooling channels 33 is located on the upper surface of the protective mirror base 213 and is respectively connected to the two upper transition channels 32. The other end is located on the side of the protective mirror base 213 and is respectively connected to a pipe joint 34. The first water-cooling channel 31 includes two inverted and parallel U-shaped channels. One end of the two U-shaped channels is connected, and the other end is the water inlet and the water outlet, respectively. The through hole inside the reflector housing 131 is located below the U-shaped through hole.
[0057] In this embodiment, one U-shaped channel is composed of channels 301, 302, and 303, and the other U-shaped channel is composed of channels 304, 305, and 306. One end of the two U-shaped channels is connected by channel 307 (e.g., Figure 10 As shown), the two transition channels 32 on the connecting plate 212 (such as...) Figure 11 (As shown) The upper end is connected to channels 301 and 306 respectively via inlet 302 and outlet 321. The other end of transition channel 32 is connected to channels 310 and 311 on the protective mirror base 213. Channels 310 and 311 are connected to channels 309 and 312 respectively. Channels 309 and 312 are the second water-cooling channels in the protective mirror base, and are connected to the external pipe joint 34 via inlet 322 and outlet 323 (e.g.) Figure 12 (As shown).
[0058] like Figure 13-15 As shown, the optical path output end of the focusing protection component 21 is equipped with an air knife assembly 4. The air knife assembly 4 includes an air knife mounting base 41, an air knife body 42, an air intake module 43, a main body base 44, and an air intake cover 45. The air knife mounting base 41 has a through hole in the center, and its upper end is fixedly connected to the protective lens base 213, while its lower end is fixedly connected to the upper surface of the air knife body 42. The lower end of the air knife body 42 is fixed to the main body base 44. The air knife body 42 has a longitudinal through-hole inside and an opening on one side to facilitate airflow. The main body base 44 includes two parallel base plates and an air outlet pressure plate 46 connected between one end of the two base plates (e.g., ...). Figure 16 (As shown); The lower end face of the air knife body 42 is fixed to two base plates. The air intake module 43 is fixed to the side of the two base plates away from the opening of the air knife body 42. The air intake module 43 has an air intake channel. The upper end of the air intake channel is connected to a first air intake connector 431. The lower end of the side is provided with an air outlet facing the side of the air outlet pressure plate 46. The air inlet cover 45 is fixed to the air outlet pressure plate 46. The interior of the air inlet cover 45 is a cavity. One side of the cover is open, and the lower part of the other side opposite to the opening has a notch (as shown). Figure 17 As shown, the side opening of the air inlet cover 45 is connected to the air outlet of the air inlet module 43. The notch on the other side of the air inlet cover 45 forms a first gap 451 between it and the upper surface of the air outlet pressure plate 46. When the gas enters the air inlet module from the first air inlet connector 431, it passes through the air inlet channel and the air outlet in sequence and reaches the internal cavity of the air inlet cover 45. A high-pressure airflow is formed in the cavity and finally ejected from the first gap 451 between the notch and the air outlet pressure plate 46, forming the first airflow barrier. This can effectively blow away dust, debris and other impurities generated during operation, and can also disperse the smoke generated during laser quenching.
[0059] A secondary air system 5 is provided below the main base 44. The secondary air system 5 includes a secondary air body 51, an upper air blade 52, and a lower air blade 53. The upper air blade 52 is fixedly connected to the main base 44. The secondary air body 51 is fixed between the upper air blade 52 and the lower air blade 53. The secondary air body 51 is a horizontally arranged U-shaped block. The opening of the U-shaped block faces the side opening of the air blade body 42. A groove is formed on the lower surface of the U-shaped block near the bottom (e.g., ...). Figure 18 As shown, there is a second gap 513 between the lower edge of the sidewall of the groove facing the opening of the U-shaped block and the upper surface of the lower air blade 53. A through hole is also opened in the sidewall of the groove, and a second air inlet connector 54 is connected to the outer port of the through hole. The second air inlet connector 54 is used to connect to an external air source. When the gas enters the groove from the second air inlet connector 54, it will be ejected from the second gap 513 between the lower edge of the sidewall and the lower air blade 53, forming a second airflow barrier, further ensuring that the inside of the focusing protection component is not contaminated.
[0060] The working principle is as follows:
[0061] The laser enters through input connector 11, is collimated by collimating lens 121 within collimating lens group 12, forming a highly parallel laser beam. This beam is incident on integrating copper mirror 136 of reflecting mirror group 13. The reflecting part 132 of integrating copper mirror reflects the laser to focusing section 2, where it is focused into a high-energy-density laser beam by focusing protection component 21 and then applied to the workpiece surface to achieve quenching. Water cooling system 3 supplies cooling water through first pipe connector 135 and second pipe connector 34 to cool heat dissipation part 133 and protective mirror base 213. Air knife assembly 4 and dual air system 5 supply gas through first air inlet connector 431 and second air inlet connector 54, respectively. The gas is blown out from first interval 451 and second interval 513, forming double protection to prevent impurities and dust during processing from entering the focusing protection component 21, thus preventing contamination of the protective lens 211 and extending its service life. When the protective lens 211 needs to be replaced, pull the operating block 218 to pull the lens holder 214 out of the groove of the protective lens holder 213, and the protective lens 211 can be replaced.
[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A laser quenched head characterized by: It includes a collimation section and a focusing section, wherein the collimation section and the focusing section are connected in an L-shaped structure; The collimation section includes an input connector, a collimating lens group, and a reflecting mirror group connected in sequence. The collimating lens group is equipped with a collimating lens inside. The optical path incident end of the reflecting mirror group is connected to the collimating lens group, and the optical path exit end is connected to the focusing section. The angle between the reflecting surface of the reflecting mirror group and the laser optical path is 30~60°. The focusing section includes a focusing protection component, the optical path incident end of which is connected to the optical path exit end of the reflector group, and the focusing protection component is provided with a protective lens.
2. The laser quenched head of claim 1, wherein, The reflector assembly includes a housing, an integrating copper mirror, and a reflector mounting base. The housing has a through-hole, and a reflecting aperture, penetrating the housing and perpendicular to the through-hole, is formed on the side of the through-hole. The through-hole and the reflecting aperture form a T-shape. The integrating copper mirror includes a reflecting part and a heat dissipation part. The outer surface of the heat dissipation part is cylindrical and located within the through-hole. One end of the heat dissipation part facing the collimating lens is an inclined surface, and the other end is fixedly connected to the reflector mounting base. The inclined surface faces the reflecting aperture, and the angle between the inclined surface and the through-hole is 30-60°. The reflecting part is fixed to the inclined surface of the heat dissipation part, and the reflector mounting base is fixedly connected to the housing.
3. The laser quenched head of claim 2, wherein: A groove running horizontally is provided in the center of the inclined surface of the heat dissipation part, and a through hole running through the heat dissipation part is provided at each end of the bottom of the groove; two through holes are provided on the reflector mounting base, which correspond one-to-one with and are connected to the two through holes on the heat dissipation part, and a pipe joint is provided in each of the two through holes of the reflector mounting base.
4. The laser quenched head of claim 3, wherein, The reflector mounting base includes a boss extending into a through hole in the reflector housing and a mounting base body located outside the reflector housing. The end face of the boss is in contact with the end face of the heat dissipation part, and the mounting base body is fixedly connected to the housing.
5. The laser quenched head of claim 2, wherein, The focusing protection assembly includes a connecting plate, a protective lens holder, a lens bracket, and a protective lens. The upper surface of the protective lens holder has a groove, and one side of the groove extends to the outer side of the protective lens holder to form a notch. The bottom of the groove has a through hole. The lens bracket is located in the groove of the protective lens holder and can be pulled outward from the notch on the side of the groove by external force. The lens bracket has a through hole in the center, and the protective lens is located in the through hole of the lens bracket. The connecting plate is located on the upper surface of the protective lens holder and is fixedly connected to the protective lens holder and the outer shell by bolts. The connecting plate has a through hole in the center.
6. The laser quenching head according to claim 5, characterized in that: The outer edge of the upper end face of the protective lens is provided with a pressure ring, and the outer edge of the lower end face is provided with a sealing ring. The lower end face of the sealing ring abuts against the bottom surface of the groove of the protective lens holder. The upper end face of the pressure ring is provided with an annular groove, and a sealing ring is provided in the annular groove. The sealing ring abuts against the lower surface of the connecting plate. An operating block is fixedly connected to one side of the notch of the protective lens holder on the lens holder. The operating block is located outside the groove of the protective lens holder. By pulling the operating block, the lens holder can be pulled out from the protective lens holder.
7. The laser quenching head according to claim 6, characterized in that: It also includes a water cooling system, which includes a first water cooling channel located inside the outer casing. The inlet and outlet of the first water cooling channel are both located on the lower surface of the outer casing. The connecting plate has two through holes as transition channels. The upper ports of the two transition channels are respectively connected to the inlet and outlet of the first water cooling channel in the upper outer casing. The protective mirror base has two second water cooling channels. The two second water cooling channels are respectively located on both sides of the groove of the protective mirror base. One end of the two second water cooling channels is located on the upper surface of the protective mirror base and is respectively connected to the two upper transition channels. The other end is located on the side of the protective mirror base and is respectively connected to a pipe joint.
8. The laser quenching head according to claim 7, characterized in that: The first water-cooling channel includes two inverted and parallel U-shaped channels, with one end of the two U-shaped channels connected and the other end being the water inlet and water outlet, respectively. The through hole inside the outer shell is located below the U-shaped through hole.
9. The laser quenching head according to claim 1, characterized in that, The optical path output end of the focusing protection component is equipped with an air knife assembly. The air knife assembly includes an air knife mounting base, an air knife body, an air intake module, a main body base, and an air intake cover. The air knife mounting base has a through hole in the center, its upper end is fixedly connected to the protective lens mount, and its lower end is fixedly connected to the upper surface of the air knife body. The lower end of the air knife body is fixed to the main body base, and the air knife body has a longitudinal through-hole and an opening on one side. The main body base includes two parallel base plates and an air outlet pressure plate connected between one end of the two base plates. The lower surface of the air knife body is fixed to the two base plates. On the base plate, the air intake module is fixed to the side of the two base plates away from the opening of the air knife body. The air intake module has an air intake channel, and a pipe connector is connected to the upper end of the air intake channel. An air outlet is provided on the side of the lower end, and the air outlet faces the side of the air outlet pressure plate. The air inlet cover is fixed to the air outlet pressure plate. The inside of the air inlet cover is a cavity with an opening on one side. The lower part of the other side opposite to the opening has a notch. The side opening of the air inlet cover is connected to the air outlet of the air intake module, and the notch on the other side of the air inlet cover is spaced apart from the upper surface of the air outlet pressure plate.
10. The laser quenching head according to claim 9, characterized in that, A dual-air system is provided below the main base. The dual-air system includes a dual-air body, an upper air blade, and a lower air blade. The upper air blade is fixedly connected to the main base. The dual-air body is fixed between the upper and lower air blades. The dual-air body is a horizontally arranged U-shaped block. The opening of the U-shaped block faces the side opening of the air blade body. A groove is formed on the lower surface of the U-shaped block near the bottom. There is a gap between the lower edge of the side wall of the groove facing the opening of the U-shaped block and the upper surface of the lower air blade. A through hole is also formed on the side wall of the groove. A pipe connector is connected to the outer port of the through hole.