Water-jet guided laser cutting head

Abstract

The invention discloses a water-jet guided laser cutting head. The water guide laser cutting head comprises an image centering structure, an optical fiber collimation structure, a laser reflection cavity, a focusing structure, a coupling centering structure and a laser coupling assembly. The image centering structure is used for acquiring a laser image; the optical fiber collimation structure is used for straightening the laser beam; the focusing structure is used for changing the focus position; the coupling centering structure is used for adjusting the position of the laser coupling assembly. The water-jet-guided laser machining device has the beneficial effects that the precision and the automation level in the water-jet-guided laser machining process are remarkably improved by introducing the CCD camera and the light path detection device; the collimation structure is optimized, the time required for adjusting the laser beam is greatly saved, and the production efficiency is improved; a translation adjustment structure is added for the design of the coupling head, so that the coupling head is suitable for transmission paths and focus positions of different laser beams, and the machining precision is improved.

Description

Technical Field

[0001] The invention relates to the field of water-conducting laser processing, and in particular to a water-conducting laser cutting head. Background Art

[0002] Water-guided laser processing is a technology that uses water jets to conduct and protect laser beams for material processing. In this process, the laser beam is conducted by water flow and focused on the workpiece surface to achieve ablation of the material. The water jet not only protects the laser beam from environmental interference, but also effectively cools the cutting area and washes away the debris generated by ablation.

[0003] At present, the water-guided laser processing process usually relies on manual monitoring, and the operator adjusts and controls the laser equipment accordingly based on the observed processing status. However, this method relies too much on manual observation and judgment, resulting in low processing accuracy and limited automation level. Summary of the invention

[0004] 1. Problems to be solved

[0005] The technical problem to be solved by the present invention is to provide a water-guided laser cutting head in view of the current status of the prior art.

[0006] (II) Technical solution

[0007] The present invention is achieved through the following technical solutions:

[0008] A water-guided laser cutting head includes: an image centering structure, an optical fiber collimation structure, a laser reflection cavity, a focusing structure, a coupling centering structure and a laser coupling component. The image centering structure is used to obtain a laser image. The optical fiber collimation structure is used to make the laser beam straight. The focusing structure is used to change the focal position. The coupling centering structure is used to adjust the position of the laser coupling component.

[0009] By adopting the above technical solution, the laser is collimated by the fiber collimation structure to obtain a straight laser beam. The laser beam is reflected in the laser reflection cavity, and is injected into the coupling cavity for coupling. Then, under the protection of the water flow, it is ejected from the outlet to cut the workpiece. Among them, an image centering structure is arranged coaxially above the laser beam outlet, which can provide a laser image in real time to determine whether the laser beam is offset during the processing. In addition, when the laser is cutting the workpiece, the spectrometer can receive the reflected light. And the intensity of the reflected light or the wavelength of the reflected light is used to determine whether the material is cut through, which reduces the difficulty of observation and greatly improves work efficiency.

[0010] Furthermore, the fiber collimation structure and the image centering structure are connected to the laser reflection cavity, and the focusing structure is connected to the laser reflection cavity. An adjusting mirror reflection device and a reflector device are provided in the laser reflection cavity. The fiber collimation structure is arranged above the adjusting mirror reflection device. The image centering structure and the focusing structure are arranged above and below the reflector device, respectively. The adjusting mirror reflection device receives the laser beam emitted from the fiber collimation structure directly above and reflects it to the reflector device. The reflector device receives the laser beam and reflects the laser beam downward into the focusing structure. At the same time, the image centering structure above the reflector device obtains an image of the laser motion trajectory.

[0011] Furthermore, a coupling centering structure is installed at the lower end of the focusing structure, and a laser coupling component is connected and installed below the coupling centering structure.

[0012] Further, the adjustment mirror reflection device includes a lens mounting chassis, and the lens mounting chassis is connected to a reflector mounting plate. A first reflector is fixedly mounted on the upper end surface of the reflector mounting plate, and an angle adjustment spiral structure is provided on the lower end surface. When the adjustment knob is rotated, the reflector mounting plate drives the first reflector to move to change the inclination of the first reflector. The reflector device includes a lens mounting housing fixedly connected to the laser reflection cavity, and a second reflector is mounted on the lower end inclined surface of the lens mounting housing.

[0013] Furthermore, the optical fiber collimation structure includes a lens barrel, a light inlet is formed at the top of the lens barrel, a light outlet is formed at the bottom of the lens barrel, and a plurality of lens cabinets are installed on the side. The lens box is detachably installed in the lens cabinet. After the external laser enters the light inlet, it passes through the lens box and is emitted from the light outlet. A collimating lens is installed in the lens cabinet.

[0014] Furthermore, the focusing structure includes a spiral sleeve and a rotating cavity. The rotating cavity is connected to and installed with a laser transmission inner cavity. A focusing lens is installed in the laser transmission inner cavity, and the focusing structure is used to adjust the position of the laser focus.

[0015] Furthermore, the hollow adjustment disc is provided with a hollow circular hole. The first sliding member and the second sliding member are externally formed with an interlocking groove and a spring groove, and the interlocking groove is engaged with the edge of the clamping member. The outer edge of the hollow adjustment disc is formed with a boss extending toward the upper and lower ends. The clamping member is connected and installed on the inner side of the boss, and an adjustment spring is installed between the spring groove and the boss.

[0016] Furthermore, the push-up adjustment device includes a spiral adjustment shaft. The boss is partially formed with an internal thread, the spiral adjustment shaft is meshed and connected with the boss, and one end of the spiral adjustment shaft abuts against the first sliding member and the second sliding member. When the spiral adjustment shaft rotates, the first sliding member and / or the second sliding member slides, and the adjustment spring follows to stretch or contract.

[0017] Furthermore, the coupling centering structure further comprises a lower hollow truncated cone, and an adapter is installed on the lower hollow truncated cone. The lower hollow truncated cone is installed and connected with the second sliding member, and the laser coupling assembly is matched and connected with the adapter.

[0018] Furthermore, an air inlet pipe and a liquid inlet pipe are provided inside the laser coupling component; after the laser is coupled with water in the coupling cavity, it passes through the water column injection channel and is ejected from the nozzle following the water column under the action of the airflow.

[0019] (III) Beneficial effects

[0020] The present invention cleverly introduces CCD cameras and optical path detection devices, which significantly improves the accuracy and automation level of water-guided laser processing. First, the CCD camera can monitor the position and focus of the laser beam in real time, and promptly detect and correct the offset caused by equipment or environmental factors, thereby ensuring processing accuracy. Then, through precise imaging technology, the system can accurately track the path and focus of the laser beam, avoiding the errors that may be caused by traditional manual monitoring.

[0021] The collimation structure of the present invention only needs to take out the lens box from one lens cabinet and insert it into another lens cabinet when laser beams of different widths are needed. There is no need to manually disassemble the collimating lens device. The design is ingenious and the maintenance is simple, which greatly saves the time required for adjusting the laser beam and improves the production efficiency.

[0022] The coupling centering structure of the present invention can adjust the coupling head position through simple operation, which is conducive to adapting to different laser beam transmission paths and focal positions and improving processing accuracy. At the same time, the internal focal position can be simply adjusted using the focusing structure. Even if the focus needs to be fine-tuned during the processing, it will not affect the position and accuracy of the processing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] Figure 1 It is a partial perspective view of the front side of the water-conducting laser cutting head of the present invention;

[0025] Figure 2 is a partial cross-sectional view of the water-guided laser cutting head of the present invention;

[0026] Figure 3 It is an exploded view of the focusing structure in the water-guided laser cutting head of the present invention;

[0027] Figure 4 It is a front view of the optical fiber alignment structure in the water-guided laser cutting head of the present invention;

[0028] Figure 5 is a cross-sectional view of the optical fiber alignment structure in the water-conducting laser cutting head of the present invention;

[0029] Figure 6 It is an exploded view of the coupling centering structure in the water-guided laser cutting head of the present invention;

[0030] Figure 7 It is a stereoscopic diagram of the adjusting mirror reflection device in the water-guided laser cutting head of the present invention;

[0031] Figure 8 It is a stereoscopic diagram of the image centering structure in the water-guided laser cutting head of the present invention.

[0032] The reference numerals are as follows:

[0033] 1. Laser coupling assembly; 2. Fiber collimation structure; 3. Laser reflection cavity; 4. Focusing structure; 5. Coupling centering structure; 6. Image centering structure; 11. Shell; 14. Coupling cavity; 15. Water column injection channel; 16. Nozzle; 17. Air intake duct; 18. Air intake duct; 21. Lens barrel; 22. Light inlet; 23. Light outlet; 24. Lens cabinet; 25. Lens box; 26. Collimating lens; 31. Adjusting mirror reflection device; 32. Reflector device; 33. Lens mounting chassis; 34. Reflector mounting plate; 36. Angle adjustment spiral structure; 37. Rotating adjustment knob; 38. First reflector; 381. Lens mounting housing; 382. Second reflector; 41. spiral sleeve; 42. rotating cavity; 43. focusing lens; 421. laser transmission inner cavity; 51. first sliding member; 52. external locking member; 53. second sliding member; 54. push-up adjustment device; 55. hollow adjustment disk; 56. fitting groove; 57. spring groove; 58. clamping member; 59. boss; 591. adjustment spring; 592. spiral adjustment shaft; 593. lower hollow cone; 594. adapter; 61. CCD camera; 62. lens; 63. light reflection unit; 64. outer cylinder; 65. semi-reflective lens drawer; 66. spectrometer receiving port; 67. point light source device; 74. stabilizing guide block; 75. rotating cavity lower cavity; 76. touch slider. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] See also Figure 1-Figure 8 The present invention provides a technical solution: a water-guided laser cutting head, comprising: an image centering structure (6), an optical fiber collimation structure (2), a laser reflection cavity (3), a focusing structure (4), a coupling centering structure (5) and a laser coupling component (1). The image centering structure (6) is used to obtain a laser image. The optical fiber collimation structure (2) is used to make the laser beam straight. The focusing structure (4) is used to change the focal position. The coupling centering structure (5) is used to adjust the position of the laser coupling component (1). After the laser is collimated by the optical fiber collimation structure (2), a straight laser beam is obtained. The laser beam is reflected in the laser reflection cavity (3), and is injected into the coupling cavity (14) for coupling, and then ejected from the outlet under the protection of the water flow to cut the workpiece. Among them, an image centering structure is arranged coaxially above the laser beam outlet, which can provide a laser image in real time and judge whether the laser beam is offset during the processing process. In addition, when the laser is cutting the workpiece, the spectrometer can receive the reflected light. Whether the material has been cut through can be judged by the intensity or wavelength of the reflected light, without visual inspection, which reduces the difficulty of observation and improves work efficiency.

[0037] Specifically, the optical fiber collimation structure (2) and the image centering structure (6) are installed and connected to the laser reflection cavity (3), and the focusing structure (4) is installed and connected to the laser reflection cavity (3). An adjusting mirror reflection device (31) and a reflector device (32) are provided in the laser reflection cavity (3). The optical fiber collimation structure (2) is arranged above the adjusting mirror reflection device (31). The image centering structure (6) and the focusing structure (4) are arranged above and below the reflector device (32), respectively. The adjusting mirror reflection device (31) receives the laser beam emitted from the optical fiber collimation structure (2) directly above and reflects it to the reflector device (32). The reflector device (32) receives the laser beam and reflects the laser beam downward into the focusing structure (4). At the same time, the image centering structure (6) above the reflector device (32) obtains an image of the laser motion trajectory.

[0038] Specifically, a coupling centering structure (5) is installed at the lower end of the focusing structure (4), and a laser coupling component (1) is connected and installed below the coupling centering structure (5).

[0039] Specifically, the adjustment mirror reflection device (31) includes a lens mounting chassis (33), and the lens mounting chassis (33) is connected to a reflector mounting plate (34). A first reflector (38) is fixedly mounted on the upper end surface of the reflector mounting plate (34), and an angle adjustment spiral structure (36) is provided on the lower end surface. When the adjustment knob (37) is rotated, the reflector mounting plate (34) drives the first reflector (38) to move, so as to change the inclination of the first reflector (38). The reflector device (32) includes a lens mounting shell (381) fixedly connected to the laser reflection cavity (3), and a second reflector (382) is mounted on the lower end inclined surface of the lens mounting shell (381). The laser head on the market is usually designed so that the laser beam is collimated at the top and then directly injected into the coupling cavity (14); and the laser detection device is inconvenient to be coaxially placed above the collimation device. This makes it impossible to know whether the laser beam is offset in the first time, thereby increasing the probability of damaging the workpiece. In the technical solution, the adjusting mirror reflection device (31) is equipped with an angle adjustment spiral structure (36), and the laser is made to coincide with the central axis of the focusing mirror through the fine adjustment structure. When working, the upper laser beam is projected on the first reflector (38), reflected to the second reflector (382) and reflected again to the focusing structure (4), and finally enters the coupling cavity (14); the image centering structure (6) is arranged above the second reflector (382). The image centering structure (6) can conveniently observe and adjust the coupling of water and laser, and by configuring a laser feedback sensor, it can quickly determine whether the cutting material is penetrated, thereby greatly improving the processing efficiency.

[0040] Specifically, the optical fiber collimation structure (2) includes a lens barrel (21), the top of the lens barrel (21) is formed with a light inlet (22), the bottom of the lens barrel (21) is formed with a light outlet (23), and a plurality of lens cabinets (24) are installed on the side. The lens box (25) is detachably installed in the lens cabinet (24). After the external laser enters the light inlet (22), it passes through the lens box (25) and is emitted from the light outlet (23). A collimating lens (26) is installed in the lens cabinet (24). The optical fiber collimation structure (2) is configured with several commonly used collimation distances, and a fine-tuning structure is configured inside, so that different collimating lenses can be configured according to different processing technologies without replacing other accessories. When laser beams of different widths are required, the lens box (25) only needs to be taken out of one lens cabinet (24) and inserted into another lens cabinet (24). There is no need to manually disassemble the collimating lens device, and the collimating lens (26) is placed at the upper end or the lower end of the lens barrel (21), or the local structure of the lens barrel (21) is disassembled and installed to control the optical path distance, thereby adjusting the laser beam width and focusing effect. The invention is convenient to use, ingeniously designed, and simple to maintain, greatly saving the time required for adjusting the laser beam and improving production efficiency.

[0041] Specifically, the focusing structure (4) includes a spiral sleeve (41) and a rotating cavity (42). The rotating cavity (42) is connected to and installed with a laser transmission inner cavity (421). A focusing lens (43) is installed in the laser transmission inner cavity (421), and the focusing structure (4) is used to adjust the position of the laser focus. The focusing mechanism (4) also includes a stabilizing guide block (74) arranged inside the spiral sleeve (41). The stabilizing guide block (74) is placed vertically, and a touch slider (76) is installed on the stabilizing guide block (74) for clamping the lower cavity (75) of the rotating cavity. In addition, a spring can be arranged inside the stabilizing guide block (74), and after the focusing mechanism (4) is focused, the touch slider (76) can lock and stabilize the rotating cavity (42). A scale display line is arranged outside the spiral sleeve (41). When the spiral sleeve (41) rotates, the focusing lens (43) moves up and down, and the stabilizing guide block (74) moves along with the spiral groove in the spiral sleeve (41), and drives the lower cavity (75) of the rotating cavity to move. The lower cavity (75) of the rotating cavity is connected to the laser inner cavity (421), and the focusing lens (43) in the laser inner cavity (421) also moves up and down. The stabilizing guide block (74) is used to guide the movement of the laser inner cavity (421) to prevent deviation. By designing a precise fine-tuning structure, the focusing structure (4) can finely adjust the focus of the laser and improve the processing accuracy.

[0042] Specifically, the coupling centering structure (5) comprises a first sliding member (51). The first sliding member (51) is arranged on the upper layer of the hollow adjustment disk (52), and the lower layer of the hollow adjustment disk (52) is slidably connected with a second sliding member (53). The first sliding member (51) and the second sliding member (53) are installed with a push-up adjustment device (54), and the push-up adjustment device (54) is used to adjust the position of the laser coupling component (1). It is made coaxial with the focusing lens (43) to couple the laser and water, shortens the cantilever length of the coupling component, and improves the processing stability of the coupling component.

[0043] Specifically, the hollow adjustment disc (52) is provided with a hollow circular hole (55). The first sliding member (51) and the second sliding member (53) are externally formed with an interlocking groove (56) and a spring groove (57), and the interlocking groove (56) is engaged with the edge of the clamping member (58). The outer edge of the hollow adjustment disc (52) is formed with a boss (59) extending toward the upper and lower ends. The clamping member (58) is connected and installed on the inner side of the boss (59), and an adjustment spring (591) is installed between the spring groove (57) and the boss (59). The push-up adjustment device (54) includes a spiral adjustment shaft (592). The boss (59) is partially formed with an internal thread, and the spiral adjustment shaft (592) is meshed and connected with the boss (59), and one end of the spiral adjustment shaft (592) is against the first sliding member (51) and the second sliding member (53). When the spiral adjustment shaft (592) rotates, the first sliding member (51) and / or the second sliding member (53) slides, and the adjustment spring (591) stretches or contracts accordingly.

[0044] Specifically, the push-up adjustment device (54) includes a spiral adjustment shaft (592). The boss (59) is partially formed with an internal thread, and the spiral adjustment shaft (592) is meshed with the boss (59), and one end of the spiral adjustment shaft (592) is against the first sliding member (51) and the second sliding member (53). When the spiral adjustment shaft (592) rotates, the first sliding member (51) and / or the second sliding member (53) slip, and the adjustment spring (591) follows to stretch or shrink. The laser coupling component (1) includes a housing (11), an air intake pipe (17), a liquid intake pipe (18), a coupling cavity (14) and a water column injection channel (15). After the laser is coupled with water in the coupling cavity (14), it passes through the water column injection channel (15) and is ejected from the nozzle (16) following the water column under the action of the airflow.

[0045] Specifically, the coupling centering structure (5) also includes a lower hollow truncated cone (593), and the lower hollow truncated cone (593) is installed with an adapter (594). The lower hollow truncated cone (593) is installed and connected with the second sliding member (53), and the laser coupling assembly (1) is connected with the adapter (594). The adapter (594) is installed with an opening and closing adjustment shaft device (595), and the opening and closing adjustment shaft device (595) is used to clamp or loosen the laser coupling assembly (1) of the adapter (594). In the actual processing process, the coupling device needs to move along the trajectory like a traditional machining center. If the coupling device is very long, its force arm will also be long, thereby increasing the probability of the coupling device moving during the movement process, affecting the accuracy and stability of the processing. While realizing the above-mentioned functions, the present invention effectively shortens and fixes the length of the coupling head and the focusing structure (4), further improving the stability of the processing.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water-guided laser cutting head, characterized in that: include: An image centering structure (6), an optical fiber collimation structure (2), a laser reflection cavity (3), a focusing structure (4), a coupling centering structure (5) and a laser coupling component (1); the image centering structure (6) is used to obtain a laser image; the optical fiber collimation structure (2) is used to make the laser beam straight; the focusing structure (4) is used to change the focal position; and the coupling centering structure (5) is used to adjust the position of the laser coupling component (1).

2. The water-guided laser cutting head according to claim 1, characterized in that: The optical fiber collimation structure (2) and the image centering structure (6) are installed and connected to the laser reflection cavity (3), and the focusing structure (4) is installed and connected to the laser reflection cavity (3); an adjustment mirror reflection device (31) and a reflection mirror device (32) are arranged in the laser reflection cavity (3); the optical fiber collimation structure (2) is arranged above the adjustment mirror reflection device (31); the image centering structure (6) and the focusing structure (4) are respectively arranged above and below the reflection mirror device (32).

3. The water-guided laser cutting head according to claim 2, characterized in that: A coupling centering structure (5) is installed at the lower end of the focusing structure (4), and a laser coupling component (1) is connected and installed below the coupling centering structure (5).

4. The water-guided laser cutting head according to claim 3, characterized in that: The adjusting mirror reflecting device (31) comprises a lens mounting chassis (33), and the lens mounting chassis (33) is connected to a reflector mounting plate (34); a first reflector (38) is fixedly mounted on the upper end surface of the reflector mounting plate (34), and an angle adjustment spiral structure (36) is provided on the lower end surface; when the adjusting knob (37) is rotated, the reflector mounting plate (34) drives the first reflector (38) to move, so as to change the inclination of the first reflector (38); the reflector device (32) comprises a lens mounting shell (381) fixedly connected to the laser reflection cavity (3), and a second reflector (382) is mounted on the lower end inclined surface of the lens mounting shell (381).

5. The water-guided laser cutting head according to claim 3, characterized in that: The optical fiber collimation structure (2) comprises a lens barrel (21), the lens barrel (21) is formed with a light inlet (22) at the top end, a light outlet (23) at the bottom end, and a plurality of lens cabinets (24) are installed on the side; a lens box (25) is detachably installed in the lens cabinet (24); after external laser enters the light inlet (22), it passes through the lens box (25) and is emitted from the light outlet (23); a collimating lens (26) is installed in the lens cabinet (24).

6. The water-guided laser cutting head according to claim 3, characterized in that: The focusing structure (4) comprises a spiral sleeve (41) and a rotating cavity (42); the rotating cavity (42) is connected to and installed with a laser transmission inner cavity (421); a focusing lens (43) is installed in the laser transmission inner cavity (421); and the focusing structure (4) is used to adjust the position of the laser focus.

7. The water-guided laser cutting head according to claim 3, characterized in that: The coupling centering structure (5) comprises a first sliding member (51); the first sliding member (51) is arranged on the upper layer of a hollow adjustment disc (52), and the lower layer of the hollow adjustment disc (52) is slidably engaged with a second sliding member (53); the first sliding member (51) and the second sliding member (53) are installed with a push-up adjustment device (54), and the push-up adjustment device (54) is used to adjust the position of the laser coupling component (1).

8. The water-guided laser cutting head according to claim 7, characterized in that: The hollow adjusting disc (52) is provided with a hollow circular hole (55); the first sliding member (51) and the second sliding member (53) are externally formed with an engaging groove (56) and a spring groove (57), and the engaging groove (56) is engaged with the edge of the clamping member (58); the outer edge of the hollow adjusting disc (52) is formed with a boss (59) extending toward the upper and lower ends; the clamping member (58) is connected and installed on the inner side of the boss (59), and an adjusting member is installed between the spring groove (57) and the boss (59). The push-up adjustment device (54) comprises a spiral adjustment shaft (592); the boss (59) is partially formed with an internal thread, the spiral adjustment shaft (592) is meshedly connected with the boss (59), and one end of the spiral adjustment shaft (592) is against the first sliding member (51) and the second sliding member (53); when the spiral adjustment shaft (592) rotates, the first sliding member (51) and / or the second sliding member (53) slip, and the adjustment spring (591) follows to stretch or contract.

9. The water-guided laser cutting head according to claim 8, characterized in that: The laser coupling assembly (1) comprises a housing (11), an air inlet pipe (17), a liquid inlet pipe (18), a coupling cavity (14) and a water column injection channel (15); after the laser is coupled with water in the coupling cavity (14), it passes through the water column injection channel (15) and is ejected from a nozzle (16) following the water column under the action of an airflow.

10. The water-guided laser cutting head according to claim 7, characterized in that: The coupling centering structure (5) further comprises a lower hollow truncated cone (593), and the lower hollow truncated cone (593) is installed with an adapter (594); the lower hollow truncated cone (593) is installed and connected to the second sliding member (53), and the laser coupling assembly (1) is cooperatively connected to the adapter (594).

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