Quick change device for beam shaping module of laser processing head and beam shaping module

Abstract

The utility model relates to the field of laser processing equipment, in particular to a quick change device for a laser processing head beam shaping module and a beam shaping module, the quick change device for the laser processing head beam shaping module comprises a main body module, a swing angle adjusting module and a dismounting module, and the main body module is provided with a main body hole penetrating through the two ends; the swing angle adjusting module is arranged between the main body module and the shaping module and is suitable for adjusting the swing angle between the shaping module and the main body hole, the dismounting and mounting module comprises a quick-change locking ring and a locking ring seat, the quick-change locking ring is arranged at the end part of the main body module, a fixing structure is arranged on the locking ring seat, and the quick-change locking ring and the locking ring seat are mutually matched. Disassembly and assembly structures matched with each other are arranged between the quick-change lock ring and the lock ring seat, and quick change of the shaping module on the laser processing equipment can be achieved. The light beam shaping module comprises the quick change device for the light beam shaping module of the laser processing head.

Description

Technical Field

[0001] This application relates to the field of laser processing equipment, specifically to a quick-change device for a beam shaping module in a laser processing head. Furthermore, this application also relates to a beam shaping module. Background Technology

[0002] Laser is a type of light emitted by stimulated atomic emission. It has the characteristics of good directionality, high brightness, good monochromaticity, and high energy density. It is currently widely used in industrial production, communications, information processing, medicine, military, and scientific research.

[0003] Laser processing utilizes the high energy contained in laser light, performing processing through the photothermal effect. It mainly includes laser welding, laser cutting, surface strengthening, laser marking, and laser cladding. It does not require direct contact with the material, offers high processing speed, minimal surface deformation, and different laser wavelengths are suitable for processing different materials, making it highly adaptable. Laser processing equipment is a device that uses laser technology for processing, and its core component is the laser processing head, which is used for various purposes. The laser processing head uses different lens groups to collimate and focus the laser light, obtaining a high-energy-density spot with a specific shape to meet the corresponding processing requirements, thus performing laser processing on the workpiece.

[0004] Different laser processing methods typically require different laser processing heads. Processing workpieces of different materials also necessitates different laser processing heads. Sometimes, processing workpieces of different shapes or different parts of the workpiece requires different laser processing heads. This leads to frequent laser processing head changes during the use of laser processing equipment. Existing laser processing heads usually also include supporting structures such as feeding modules and dust collection modules, making it difficult to replace the shaping module separately. Changing the laser processing head not only requires complex disassembly and assembly operations but also comprehensive adjustments to the various modules on the laser processing head, resulting in poor replacement efficiency. Utility Model Content

[0005] To facilitate the replacement of the beam shaping module and improve the efficiency of laser processing head replacement, this application provides a quick-change device and a beam shaping module for laser processing head beam shaping modules.

[0006] The quick-change device for the beam shaping module of a laser processing head provided in this application adopts the following technical solution:

[0007] A quick-change device for a laser processing head beam shaping module includes a main module, a tilt angle adjustment module, and a disassembly / assembly module. The main module has a through-hole at both ends. The tilt angle adjustment module is disposed between the main module and the shaping module and is adapted to adjust the tilt angle between the shaping module and the through-hole. The disassembly / assembly module includes a quick-change locking ring and a locking ring seat. The quick-change locking ring is disposed at the end of the main module, and the locking ring seat has a fixing structure. The quick-change locking ring and the locking ring seat have a mutually compatible disassembly / assembly structure.

[0008] By adopting the above technical solution, the irradiation direction of the laser beam output by the shaping module can be easily adjusted using the tilting angle adjustment module located between the main module and the shaping module. This ensures that the irradiation direction of the laser beam is compatible with the structure of other modules on the laser head or laser processing equipment, meeting the requirements of laser processing. Furthermore, the disassembly and assembly structure located between the quick-change locking ring and the locking ring seat allows for the locking ring seat to be fixed to the laser head or laser processing equipment via a fixing structure. This enables quick disassembly and assembly between the shaping module and the laser head or laser processing equipment, facilitating the replacement of the shaping module and improving the replacement efficiency of the laser processing head.

[0009] In one specific implementation scheme, the end of the main module is provided with a connecting part, the quick-change locking ring is rotatably connected to the connecting part, and the disassembly and assembly structure is a connecting thread respectively provided on the quick-change locking ring and the locking ring seat.

[0010] By adopting the above technical solution, the quick-change lock ring can be easily screwed onto the lock ring seat or unscrewed from the lock ring seat by rotating on the connecting part, thus realizing convenient disassembly and assembly of the shaping module.

[0011] In one specific implementation, the disassembly module further includes a locking ring retainer, which is fixed on the connecting part and located on the side of the quick-change locking ring adjacent to the end of the connecting part. The locking ring retainer is provided with a foolproof pin, and a foolproof groove is provided at the corresponding position on the locking ring seat.

[0012] By adopting the above technical solution, the quick-change lock ring can be easily rotated on the connecting part by using the lock ring retainer ring installed on the outside of the quick-change lock ring on the connecting part; by using the anti-misplacement pin set on the lock ring retainer ring and the anti-misplacement groove set on the corresponding position on the lock ring seat, it can be ensured that the main module is installed in the laser head or laser processing equipment in the set position, reducing the workload of adjustment after disassembly and assembly of the shaping module and improving the convenience of replacing the shaping module.

[0013] In one specific implementation, the swing angle adjustment module includes a swing angle adjustment plate, a swing angle adjustment component, and a dustproof ring. The swing angle adjustment plate has a shaping module mounting hole in its center. The shaping module passes through the shaping module mounting hole and is mounted on the swing angle adjustment plate. The swing angle adjustment component is disposed between the swing angle adjustment plate and the main body module to adjust the swing angle of the swing angle adjustment component relative to the main body hole. The dustproof ring is disposed between the shaping module mounting hole and the main body hole to maintain a seal at the connection between the shaping module mounting hole and the main body hole.

[0014] By adopting the above technical solution, the position angle of the swing angle adjustment plate relative to the main module can be adjusted by using the swing angle adjustment component set between the swing angle adjustment plate and the main module, thereby adjusting the swing angle of the shaping module installed on the swing angle adjustment plate relative to the main hole; by using the dustproof ring set between the shaping module mounting hole and the main hole, the sealing of the connection between the shaping module mounting hole and the main hole can be ensured during the swing angle adjustment process.

[0015] In one specific implementation scheme, the sway adjustment component includes a universal ball, a first tension spring, a second tension spring, a first adjusting threaded pair, and a second adjusting threaded pair. An adjustment base plate is provided at the end of the main module. Universal ball support recesses are provided at corresponding corner positions of the adjustment base plate and the sway adjustment plate. The universal ball is disposed in the universal ball support recess. Adjusting screw holes are provided at the corners on both sides of the universal ball support recess on the adjustment base plate. Adjustment component support grooves are provided at corresponding positions at the corners on adjacent sides of the universal ball support recess on the sway adjustment plate. The first adjusting threaded pair and the second adjusting threaded pair are respectively screwed into the adjusting screw holes, and their ends are supported in the adjustment component support grooves. The first tension spring and the second tension spring are disposed between the sway adjustment component and the adjustment base plate, and are respectively located between the universal ball and the first adjusting threaded pair and between the universal ball and the second adjusting threaded pair.

[0016] By adopting the above technical solution, the universal ball supported between the adjustment base plate and the swing angle adjustment plate can be used to form the swing angle adjustment plate to swing at multiple angles on the adjustment base plate. By using the adjustment thread pair and tension spring set on both sides of the universal ball between the swing angle adjustment plate and the adjustment base plate, the distance between the swing angle adjustment plate and the adjustment base plate can be conveniently adjusted in different directions on both sides of the universal ball, thereby adjusting the tilt angle of the swing angle adjustment plate in two different directions, forming different swing angles of the swing angle adjustment plate relative to the adjustment base plate.

[0017] In one specific implementation scheme, an observation window is provided on one side of the main module, the observation window is connected to the main body hole, and a window cover plate is provided on the outside of the observation window, the window cover plate being detachably connected to the main module.

[0018] By adopting the above technical solution, the observation window located on one side of the main module allows for convenient observation of the shaping module within the main module. Furthermore, the focal length of the lens assembly can be adjusted through the observation window, thereby regulating the size of the laser spot formed by the laser beam. A cover plate covering the outside of the observation window seals the window, preventing dust from entering the main module during processing and contaminating the shaping module.

[0019] In one specific implementation, the quick-change device for the laser processing head beam shaping module of this application further includes a water-cooled block, which is detachably connected to the wall of the main module.

[0020] By adopting the above technical solution, the main module can be cooled by water using the water-cooling block connected to the side wall of the main module, thereby improving the cooling effect of the lens assembly set in the main hole and preventing the heat generated by the laser from accumulating and causing high-temperature deformation of the lens assembly when processing with high-power laser.

[0021] In one specific implementation, the water-cooled block includes a water-cooling cavity and two water inlets, which are respectively connected to different positions within the water-cooling cavity. A main cooling surface is provided on one side of the water-cooled block, and the water-cooling cavity opens onto this main cooling surface. A water-cooling sealing groove is provided around the opening of the water-cooling cavity on the main cooling surface. The water-cooled block is connected to the main module with its main cooling surface close to the main module.

[0022] By adopting the above technical solution, the water-cooling cavity opening on the main cooling surface allows the cooling water to directly contact the main module, thereby improving the cooling effect on the main module.

[0023] The beam shaping module provided in this application adopts the following technical solution:

[0024] A laser beam shaping module includes a shaping module and a quick-change device for a laser processing head beam shaping module provided in this application. The shaping module includes an interconnected fiber optic plug and a lens assembly. The lens assembly is fixed on the tilt angle adjustment module, and the light-emitting end of the lens assembly is located inside the main body hole.

[0025] By adopting the above technical solution, and using the lens assembly fixed on the tilt angle adjustment module, the tilt angle of the laser beam emitted through the lens assembly can be easily adjusted, thereby facilitating the adjustment of the position of the processing laser spot. The arrangement of the light-emitting end of the lens assembly located within the main body hole provides protection for the lens assembly and easily ensures the tilt angle of the laser beam emitted through it.

[0026] In one specific implementation, the lens assembly includes a collimating lens group and a focusing lens group. The lens assembly is provided with a focal length adjustment tooth for adjusting the focal length of the focusing lens group. An observation window is provided on one side of the main module, and the focal length adjustment tooth is located at a position opposite to the observation window. The tilt adjustment module includes a tilt adjustment plate and a lens assembly connector. The lens assembly connector is sleeved on the lens assembly and fixedly connected to the tilt adjustment plate, thereby fixing the lens assembly to the tilt adjustment plate.

[0027] By adopting the above technical solution, the focal length of the focusing lens group can be easily adjusted through the observation window using the focal length adjustment teeth set on the lens assembly, thereby adjusting the size of the laser spot formed by the laser beam emitted through the focusing lens assembly. The lens assembly connector forms a connection between the lens assembly and the tilt adjustment plate, facilitating the assembly and disassembly of the shaping module and the quick-change device. This allows for the convenient assembly and disassembly of more shaping modules on laser heads or laser processing equipment using the quick-change device for the laser processing head beam shaping module of this application.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By setting an angle adjustment module between the main module and the shaping module, the angle of the shaping module relative to the main module can be easily adjusted. This allows the laser beam output by the shaping module to be quickly adjusted to a suitable processing position after the shaping module is replaced, thus forming a good match between the laser spot and other module structures. This reduces the adjustment workload after the shaping module is replaced and improves work efficiency.

[0030] 2. The locking ring seat is fixed to the laser head or laser processing equipment through a fixed structure, and a disassembly and assembly structure is set between the quick-change locking ring and the locking ring seat. The shaping module can be replaced by replacing the main module, so that the entire laser head does not need to be replaced. The disassembly and assembly of the laser head on the laser processing equipment is transformed into the disassembly and assembly between the quick-change locking ring and the locking ring seat. The adjustment of the installation position of the shaping module on the laser processing equipment is transformed into the adjustment of the swing angle of the shaping module on the main module. The disassembly, assembly and adjustment of the laser processing head is more convenient, and the work efficiency of laser processing head replacement is effectively improved.

[0031] 3. By adopting a swing angle adjustment component consisting of a universal ball, a first tension spring, a second tension spring, a first adjusting thread pair, and a second adjusting thread pair, the swing angle of the swing angle adjustment plate relative to the adjusting base plate can be adjusted by adjusting the included angle of the swing angle adjustment plate relative to the adjusting base plate in two different directions. This allows for convenient and accurate adjustment of the position of the laser spot formed by the laser beam emitted from the shaping module, improving the convenience of laser spot position adjustment.

[0032] 4. The beam shaping module of this application not only allows for convenient disassembly and replacement of the shaping module and easy adjustment of the position and size of the laser spot formed by the laser beam, but also maintains the positional state of the shaping module before and after replacement, reducing the workload of adjusting the shaping module after replacement. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of one embodiment of the quick-change device for a laser processing head beam shaping module of this application.

[0034] Figure 2 This is an exploded view of a component of one embodiment of the quick-change device for a laser processing head beam shaping module of this application.

[0035] Figure 3 This is a schematic diagram showing the connection state of the locking ring retainer on the main module in one embodiment of the quick-change device for the laser processing head beam shaping module of this application.

[0036] Figure 4 This is a schematic diagram of a locking ring seat in one embodiment of the quick-change device for a laser processing head beam shaping module of this application.

[0037] Figure 5 This is a schematic diagram of the state of the swing angle adjustment component in one embodiment of the quick-change device for the laser processing head beam shaping module of this application.

[0038] Figure 6 This is a schematic diagram of a water-cooled block in one embodiment of the quick-change device for a laser processing head beam shaping module of this application.

[0039] Figure 7 This is a schematic diagram of one embodiment of the laser beam shaping module of this application.

[0040] Figure 8 This is a cross-sectional schematic diagram of one embodiment of the laser beam shaping module of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Main module; 11. Main hole; 12. Connecting part; 13. Adjusting base plate; 14. Observation window; 15. Window cover plate; 2. Sway angle adjustment module; 21. Sway angle adjustment plate; 211. Shaping module mounting hole; 22. Sway angle adjustment component; 221. Universal ball; 222. First tension spring; 223. Second tension spring; 224. First adjusting threaded pair; 225. Second adjusting threaded pair; 23. Dustproof ring 24. Lens assembly connector; 3. Disassembly and assembly module; 31. Quick-change locking ring; 32. Locking ring seat; 321. Anti-foolproof groove; 322. Fixing structure; 323. Limiting ring; 33. Locking ring retaining ring; 331. Anti-foolproof pin; 4. Shaping module; 41. Fiber optic plug; 42. Lens assembly; 421. Focus adjustment tooth; 5. Water cooling block; 51. Water cooling cavity; 52. Water circuit interface; 53. Main cooling surface; 531. Water cooling sealing groove. Detailed Implementation

[0042] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] One embodiment of the quick-change device for a laser processing head beam shaping module of this application is as follows: Figure 1 and Figure 2 As shown, the system includes a main module 1, a tilt adjustment module 2, and a disassembly / assembly module 3. The main module 1 carries and accommodates the shaping module 4, and the disassembly / assembly module 3 enables convenient and efficient quick assembly / disassembly of the shaping module 4 onto the laser head or laser processing equipment. It should be noted that the term "quick assembly" in this application does not emphasize an actual installation speed exceeding a specific value, but rather the convenience and speed of assembly / disassembly; it refers to the ability to complete the assembly / disassembly process conveniently and efficiently through simple operations. The main module 1 is typically cylindrical or prismatic in shape, and contains an axially extending main hole 11 with openings at both ends in the middle of the two end faces. The main hole 11 accommodates the light-emitting end and the shaping lens portion of the shaping module 4, protecting the important structure of the shaping module 4 while also guiding the laser beam output from the shaping module 4.

[0045] The swing angle adjustment module 2 is located at one end of the main body module 1 and is also connected to the shaping module 4, allowing the shaping module 4 to be connected to the main body module 1 at different angles in different directions, thus creating a swinging motion of the shaping module 4 on the main body module 1. The swing angle adjustment module 2 includes an adjustment mechanism that can adjust the swing state of the shaping module 4 on the main body module 1, thereby adjusting the swing angle of the shaping module 4 in the main body hole 11. This ensures that the laser beam output from the shaping module 4 can irradiate the workpiece at a set angle, performing laser processing on the workpiece.

[0046] The disassembly / assembly module 3 includes a quick-change locking ring 31 and a locking ring seat 32. The quick-change locking ring 31 is connected to the end of the main body module 1 and can be fixedly connected to the main body module 1 or rotatably connected to the main body module 1. The locking ring seat 32 is provided with a fixing structure 322, which can be used to fix the locking ring seat 32 to the laser processing head or laser processing equipment on which the shaping module 4 needs to be installed. A mutually compatible disassembly / assembly structure is provided between the quick-change locking ring 31 and the locking ring seat 32. Through this disassembly / assembly structure, the quick-change locking ring 31 and the locking ring seat 32 can be easily connected together, and the quick-change locking ring 31 and the locking ring seat 32 can be easily separated, realizing the quick disassembly / assembly of the shaping module 4 installed on the main body module 1 on the laser processing head or laser processing equipment. This facilitates the quick replacement of the shaping module 4 on the laser processing head or laser processing equipment, which has a higher replacement efficiency compared to replacing the entire laser processing head.

[0047] The disassembly / assembly structure can be a mutually compatible threaded structure respectively provided on the quick-change locking ring 31 and the locking ring seat 32, or a mutually compatible snap-fit ​​structure respectively provided on the quick-change locking ring 31 and the locking ring seat 32. When the threaded structure is used as the disassembly / assembly structure, the quick-change locking ring 31 is usually rotatably connected to the main body module 1. When the snap-fit ​​structure is used as the disassembly / assembly structure, the quick-change locking ring 31 can be rotatably connected to the main body module 1 or fixedly connected to the main body module 1.

[0048] In some embodiments of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figure 1 and Figure 2 As shown, a connecting part 12 is provided at one end of the main body module 1 that is connected to the disassembly module 3. The connecting part 12 is a cylindrical part with a small diameter provided at the end of the main body module 1. The main body hole 11 passes through the connecting part 12 and opens at the end of the connecting part 12.

[0049] The quick-change locking ring 31 has a connecting flange at one end, and a connecting hole in the middle of the connecting flange. It is fitted onto the connecting part 12 through this connecting hole, achieving a rotatable connection with the connecting part 12. An internal thread is provided on the inner wall of the other end of the quick-change locking ring 31, and a matching external thread is provided on the outer side of the locking ring seat 32 at the opposite end. The quick-change locking ring 31 can be easily screwed onto the locking ring seat 32 through the engagement of its internal thread and the external thread, or can be disassembled from the locking ring seat 32.

[0050] In a preferred embodiment of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figures 2 to 4 As shown, the disassembly module 3 also includes a locking ring retainer 33. The locking ring retainer 33 is installed at the end of the connecting part 12 by screws, and the connecting flange of the quick-change locking ring 31 is confined inside the locking ring retainer 33 on the connecting part 12, forming a rotatable connection between the quick-change locking ring 31 and the connecting part 12. A foolproof pin 331 is provided on the locking ring retainer 33, and the end of the foolproof pin 331 protrudes into the inner side wall of the connecting part 12 through a through hole provided on the connecting part 12.

[0051] A limiting ring 323 is provided on the inner side of the locking ring seat 32. When the quick-change locking ring 31 is connected to the locking ring seat 32, the end of the connecting part 12 is located in the annular groove between the side wall of the locking ring seat 32 and the limiting ring 323, thus precisely defining the relative position between the main body module 1 and the locking ring seat 32. A foolproof groove 321 that matches the foolproof pin 331 is provided at the end of the limiting ring 323. When the quick-change locking ring 31 is connected to the locking ring seat 32, the end of the foolproof pin 331 is located in the foolproof groove 321, ensuring that the main body module 1 is installed on the locking ring seat 32 in a fixed rotational position, ensuring that the shaping module 4 is installed in a determined position, and reducing the workload of adjusting the position after the shaping module 4 is replaced.

[0052] In some embodiments of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figure 2 and Figure 5 As shown, the tilt adjustment module 2 includes a tilt adjustment plate 21, a tilt adjustment component 22, and a dustproof ring 23. A shaping module mounting hole 211 is provided in the middle of the tilt adjustment plate 21. When the shaping module 4 is installed on the quick-change device for the laser processing head beam shaping module of this application, the shaping module 4 passes through the shaping module mounting hole 211 and is fixedly mounted on the tilt adjustment plate 21.

[0053] The swing angle adjustment component 22 can be any structural component capable of adjusting the swing angle between the swing angle adjustment module 2 and the main body module 1. The swing angle adjustment component 22 is disposed between the swing angle adjustment plate 21 and the main body module 1, and can adjust the swing angle of the swing angle adjustment component 22 relative to the main body hole 11 in multiple different directions.

[0054] The dustproof ring 23 is usually made of elastic materials such as rubber. The dustproof ring 23 is set between the shaping module mounting hole 211 and the main body hole 11. One end is close to the inner wall of the shaping module mounting hole 211, and the other end is close to the inner wall of the main body hole 11. It can maintain the seal at the connection between the shaping module mounting hole 211 and the main body hole 11 when the swing angle adjustment plate 21 swings relative to the main body module 1.

[0055] In a preferred embodiment of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figure 2 and Figure 5 As shown, the tilt adjustment component 22 includes a universal ball 221, a first tension spring 222, a second tension spring 223, a first adjusting threaded pair 224, and a second adjusting threaded pair 225. An adjustment base plate 13 protruding from the main body of the main module 1 is provided at the end of the main body module 1. The size and shape of the outer periphery of the adjustment base plate 13 are the same as those of the tilt adjustment plate 21, and it is typically square. Universal ball support recesses are provided at corresponding positions on the corners of the opposite end faces of the adjustment base plate 13 and the tilt adjustment plate 21. The universal ball 221 is installed in these oppositely arranged universal ball support recesses, forming the pivot for the tilt adjustment plate 21 to swing on the main body module 1.

[0056] An adjustment screw hole is provided at each of the two corners of the universal ball support socket on the adjustment base plate 13. An adjustment support groove is provided at each of the corresponding positions of the two corners of the universal ball support socket on the swing angle adjustment plate 21. The first adjustment thread pair 224 and the second adjustment thread pair 225 are respectively screwed into the two adjustment screw holes, and the ends of the first adjustment thread pair 224 and the second adjustment thread pair 225 are respectively supported in an adjustment support groove. As the angle between the swing angle adjustment plate 21 and the adjustment base plate 13 changes, the ends of the first adjustment thread pair 224 and / or the second adjustment thread pair 225 can slide in the adjustment support groove.

[0057] Typically, the line connecting the first adjusting threaded pair 224 and the universal ball 221 is perpendicular to the line connecting the second adjusting threaded pair 225 and the universal ball 221. By adjusting the first adjusting threaded pair 224 and the second adjusting threaded pair 225, the beam tilting plate can be adjusted in the two mutually perpendicular axes θx and θy, thereby achieving fine adjustment of the laser beam at any tilting angle in the xy plane.

[0058] The first tension spring 222 and the second tension spring 223 are respectively supported on the sway adjustment plate 21 and the adjustment base plate 13 at positions between the universal ball 221 and the first adjusting threaded pair 224, and between the universal ball 221 and the second adjusting threaded pair 225. Two spring rod slots are respectively provided at opposite positions on the end faces of the sway adjustment plate 21 and the adjustment base plate 13. The first tension spring 222 and the second tension spring 223 pass through spring holes provided on the sway adjustment plate 21 and the adjustment base plate 13, respectively, and their ends are hooked onto spring rods in the spring rod slots. The first tension spring 222 and the second tension spring 223 apply tension to the sway adjustment plate 21 towards the adjustment base plate 13 from two different directions, ensuring that the ends of the first adjusting threaded pair 224 and the second adjusting threaded pair 225 are always supported on the adjustment base plate 13, thus ensuring the stability of the position between the sway adjustment plate 21 and the adjustment base plate 13.

[0059] By adjusting the first adjusting thread pair 224 and the second adjusting thread pair 225 respectively, the angle between the swing angle adjusting plate 21 and the adjusting base plate 13 in one direction can be adjusted. The combination of the angles in two different directions can form various different swing angles between the swing angle adjusting plate 21 and the adjusting base plate 13, thereby precisely adjusting the irradiation direction of the laser output by the shaping module 4.

[0060] In some embodiments of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figure 2 As shown, an observation window 14 is provided on one side of the main module 1, and the observation window 14 is connected to the main hole 11 to observe the side wall of the main module 1. Through the observation window 14, the condition of structures such as lens assemblies on the inner shaping module 4 set in the main hole 11 can be observed, and necessary operations and adjustments can be made to the relevant structures on the shaping module 4, which improves the convenience of operating the shaping module 4.

[0061] A window cover plate 15 is provided on the outside of the observation window 14. The window cover plate 15 is a plate-shaped structure with an area larger than that of the observation window 14 and a dustproof sealing ring on the edge. A hand-tightening screw is provided on the window cover plate 15, and a fixing screw hole is provided at the corresponding position on the edge of the observation window 14. The window cover plate 15 can be easily removed from the main body module 1 by rotating the hand-tightening screw. By fixing the window cover plate 15 to the main body module 1, the observation window 14 can be sealed to prevent dust generated during the operation from entering the main body hole 11 and contaminating the shaping module 4.

[0062] In some embodiments of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figure 1 and Figure 2As shown, a water-cooling block 5 is also provided on the side of the main module 1 opposite to the observation window 14. The water-cooling block 5 is detachably fixed to the main module 1 and is in close contact with the side wall of the main module 1. Cooling water channels are provided inside the water-cooling block 5 to remove heat from the main module 1, thereby improving the heat dissipation capacity of the main module 1 and the heat dissipation capacity of the shaping module 4 installed in the main hole 11 when shaping high-power lasers. Usually, when shaping lasers below 200W, the water-cooling block 5 is not required, as the heat dissipation capacity of the main module 1 itself is sufficient to meet the heat dissipation needs of the shaping module 4. However, when shaping lasers exceeding 200W, the water-cooling block 5 is required to ensure effective heat dissipation of the shaping module 4.

[0063] In a preferred embodiment of the quick-change device for the beam shaping module of a laser processing head in this application, such as Figure 6 As shown, a water-cooling cavity 51 is provided inside the water-cooling block 5. Two water passage interfaces 52 are provided on the water-cooling block 2, and the two water passage interfaces 52 are respectively connected to different positions on both sides of the water-cooling cavity 51. The water passage interfaces 52 are usually quick-connect interfaces that can be quickly plugged and unplugged from external circulating water pipes. Connecting the two water passage interfaces 52 to external circulating water pipes can form a circulating water flow in the water-cooling cavity 51 to cool the water-cooling block 5.

[0064] One side of the water-cooled block 5 is configured as a planar main cooling surface 53. The water-cooled block 5 is in close contact with the side wall of the main module 1 through the main cooling surface 53, ensuring the heat transfer effect between the two. The water-cooled cavity 51 opens onto the main cooling surface 53. When the water-cooled block 5 is installed on the main module 1 in contact with the main module 1 through the main cooling surface 53, the circulating water in the water-cooled cavity 51 directly contacts the main module 1, carrying the heat from the main module 1, further improving the heat dissipation effect of the main module 1, so that the shaping module 4 installed in the main hole 11 can shape higher power lasers.

[0065] A water-cooling sealing groove 531 is provided around the opening of the water-cooling cavity 51 on the main cooling surface 53. A sealing ring can be installed in the water-cooling sealing groove 531 to ensure the seal between the main cooling surface 53 around the water-cooling cavity 51 and the side wall of the main module 1, and to prevent the leakage of cooling water in the water-cooling cavity 51.

[0066] In one embodiment of the beam shaping module of this application, such as Figure 7 and Figure 8As shown, the device includes a shaping module 4 and a quick-change device for a laser processing head beam shaping module according to any embodiment of this application. The shaping module 4 includes an optical fiber plug 41 and a lens assembly 42. The optical fiber plug 41 is connected to the lens assembly 42 and is used to introduce the laser beam generated by the laser into the lens assembly 42. After being shaped by multiple lens groups in the lens assembly 42, a laser beam capable of producing a laser spot of a set shape and size is output and irradiates the processing area on the workpiece to be processed, thereby performing laser processing on the workpiece.

[0067] The fiber optic connector can be freely selected based on the laser's power and type. Commonly used connectors on the market include SMA905, D80, QCS, and QBH. Alternatively, a custom-made fiber optic connector can be made to fit the laser's fiber optic output connector. The shaping module 4 also typically uses existing suitable products.

[0068] The lens assembly 42 is fixed on the tilt angle adjustment module 2, so that the light-emitting end of the lens assembly 42 is located inside the main body hole 11, and the shaped laser beam is emitted through the main body hole 11. The light-emitting end of the main body hole 11 can also be provided with a protective lens to seal the light-emitting port and protect the lens assembly of the main body hole 11.

[0069] The disassembly and assembly module 3 of this application enables quick disassembly, assembly, and replacement of the shaping module 4 on the laser head or laser processing equipment, and helps improve the consistency of the position of the shaping module 4 before and after replacement, reducing the workload of adjusting the shaping module 4 after replacement. The swing angle adjustment module 2 of this application allows for adjustment of the swing angle of the shaping module 4, improving the convenience of adjusting and inserting the shaping module 4.

[0070] In a preferred embodiment of the beam shaping module of this application, such as Figure 7 and Figure 8 As shown, the lens assembly 42 internally houses a collimating lens group and a focusing lens group. The collimating lens group collimates the laser beam introduced through the fiber optic plug 41 and then transmits it to the focusing lens group. The focusing lens group adjusts the convergence form and degree of the laser beam in different directions, so that the laser beam irradiates the workpiece and forms a laser spot with a certain shape and size. A focal length adjustment tooth 421 for adjusting the focal length of the focusing lens group is provided on the outer wall of the lens assembly 42, and an observation window 14 is provided on one side wall of the main module 1. When the lens assembly 42 is installed on the main module 1, the focal length adjustment tooth 421 is located inside the main hole 1, opposite to the observation window 14. Opening the window cover 15 on the observation window 14 allows for easy manipulation of the focal length adjustment tooth 421, adjusting the size of the laser spot formed by the laser beam output from the shaping module 4.

[0071] The sway angle adjustment module 2 includes a sway angle adjustment plate 21 and a lens assembly connector 24. The lens assembly connector 24 is an annular metal ring, which is sleeved and installed on the lens assembly 42. The outer diameter of the lens assembly connector 24 is adapted to the end of the shaping module mounting hole 211 on the sway angle adjustment plate 21. By inserting the lens assembly 42 into the shaping module mounting hole 211 and installing the lens assembly connector 24 on the sway angle adjustment plate 21, and fixing it with screws, the lens assembly 42 can be easily fixed on the sway angle adjustment plate 21. As the sway angle adjustment plate 21 swings, the sway angle of the shaping module 4 can be easily adjusted.

[0072] In the description of this application, the references to terms such as "an embodiment," "specific embodiment," and "preferred embodiment" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] 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 quick-change device for a laser processing head beam shaping module, characterized in that, The system includes a main module (1), a swing angle adjustment module (2), and a disassembly and assembly module (3). The main module (1) has a main hole (11) that runs through both ends. The swing angle adjustment module (2) is located between the main module (1) and the shaping module (4) and is suitable for adjusting the swing angle between the shaping module (4) and the main hole (11). The disassembly and assembly module (3) includes a quick-change lock ring (31) and a lock ring seat (32). The quick-change lock ring (31) is located at the end of the main module (1). The lock ring seat (32) has a fixing structure. The quick-change lock ring (31) and the lock ring seat (32) have a mutually compatible disassembly and assembly structure.

2. The quick-change device for a laser processing head beam shaping module according to claim 1, characterized in that, The main module (1) is provided with a connecting part (12) at its end. The quick-change lock ring (31) is rotatably connected to the connecting part (12). The disassembly and assembly structure is a connecting thread provided on the quick-change lock ring (31) and the lock ring seat (32) respectively.

3. The quick-change device for a laser processing head beam shaping module according to claim 2, characterized in that, The disassembly and assembly module (3) also includes a locking ring retainer (33), which is installed on the connecting part (12) and located on the side of the quick-change locking ring (31) adjacent to the end of the connecting part (12). The locking ring retainer (33) is provided with a foolproof pin (331), and a foolproof groove (321) is provided at the corresponding position on the locking ring seat (32).

4. The quick-change device for a laser processing head beam shaping module according to claim 1, characterized in that, The sway angle adjustment module (2) includes a sway angle adjustment plate (21), a sway angle adjustment component (22), and a dustproof ring (23). The sway angle adjustment plate (21) has a shaping module mounting hole (211) in the middle. The shaping module (4) passes through the shaping module mounting hole (211) and is mounted on the sway angle adjustment plate (21). The sway angle adjustment component (22) is disposed between the sway angle adjustment plate (21) and the main body module (1) to adjust the sway angle of the sway angle adjustment component (22) relative to the main body hole (11). The dustproof ring (23) is disposed between the shaping module mounting hole (211) and the main body hole (11) to maintain the seal at the connection between the shaping module mounting hole (211) and the main body hole (11).

5. The quick-change device for a laser processing head beam shaping module according to claim 4, characterized in that, The sway adjustment component (22) includes a universal ball (221), a first tension spring (222), a second tension spring (223), a first adjusting threaded pair (224), and a second adjusting threaded pair (225). An adjusting base plate (13) is provided at the end of the main body module (1). Universal ball support recesses are provided at corresponding positions on the corners of the adjusting base plate (13) and the sway adjustment plate (21). The universal ball (221) is disposed in the universal ball support recess. Adjusting screw holes are provided at the corners on both sides of the universal ball support recess on the adjusting base plate (13). The sway adjustment plate (21)... The corners of the adjacent sides of the universal ball support socket are provided with adjustment support grooves. The first adjustment thread pair (224) and the second adjustment thread pair (225) are respectively screwed into the adjustment screw hole and supported at the end in the adjustment support groove. The first tension spring (222) and the second tension spring (223) are provided between the swing angle adjustment member (22) and the adjustment base plate (13), and are respectively located between the universal ball (221) and the first adjustment thread pair (224) and between the universal ball (221) and the second adjustment thread pair (225).

6. The quick-change device for a laser processing head beam shaping module according to claim 1, characterized in that, An observation window (14) is provided on one side of the main module (1). The observation window (14) is connected to the main hole (11). A window cover plate (15) covers the outside of the observation window (14). The window cover plate (15) is detachably connected to the main module (1).

7. The quick-change device for a laser processing head beam shaping module according to any one of claims 1-6, characterized in that, It also includes a water-cooled block (5), which is detachably connected to the wall of the main body module (1).

8. The quick-change device for a laser processing head beam shaping module according to claim 7, characterized in that, The water-cooled block (5) includes a water-cooled cavity (51) and two water interfaces (52). The two water interfaces (52) are respectively connected to different positions of the water-cooled cavity (51). A main cooling surface (53) is provided on one side of the water-cooled block (5). The water-cooled cavity (51) opens on the main cooling surface (53). A water-cooled sealing groove (531) is provided around the opening of the water-cooled cavity (51) on the main cooling surface (53). The water-cooled block (5) is connected to the main module (1) with the main cooling surface (53) close to the main module (1).

9. A beam shaping module, characterized in that, The device includes a shaping module (4) and a quick-change device for a laser processing head beam shaping module according to any one of claims 1-8. The shaping module (4) includes an optical fiber plug (41) and a lens assembly (42) connected to each other. The lens assembly (42) is fixed on the sway angle adjustment module (2), and the light-emitting end of the lens assembly (42) is located in the main body hole (11).

10. The beam shaping module according to claim 9, characterized in that, The lens assembly (42) includes a collimating lens group and a focusing lens group. The lens assembly (42) is provided with a focal length adjustment tooth (421) for adjusting the focal length of the focusing lens group. The main body module (1) is provided with an observation window (14) on one side. The focal length adjustment tooth (421) is located at the opposite position of the observation window (14). The sway angle adjustment module (2) includes a sway angle adjustment plate (21) and a lens assembly connector (24). The lens assembly connector (24) is sleeved on the lens assembly (42) and fixedly connected to the sway angle adjustment plate (21) to fix the lens assembly (42) on the sway angle adjustment plate (21).

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