A laser resonator cavity mirror alignment device

Abstract

The present application relates to the technical field of laser, especially to a kind of laser resonator cavity mirror installation and adjustment equipment, including fixed casing, the fixed casing inside and left and right sides are fixedly installed with support base, the top of support base is installed with moving mechanism, and symmetric two moving mechanisms are equipped with sliding frame between, the top of sliding frame is equipped with adjusting mechanism, the working end of adjusting mechanism is installed with cooling liquid storage tank, the top of cooling liquid storage tank is fixedly installed with fixed frame, and the first installation plate or second installation plate is movably installed in the fixed frame.This application forms multiple safeguards in the cooling, fixing and adjustment of output mirror and full mirror, not only realizes efficient heat dissipation and dustproof protection, but also improves the installation and adjustment flexibility and adaptability;Through switchable cavity mirror structure and multi-dimensional adjustment design, not only the life of optical element is prolonged, but also the long-term stable operation of laser is ensured, and the practicability and reliability of laser are significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lasers, in particular to a laser resonant cavity mirror adjusting device. BACKGROUND

[0002] In the technical field of laser folded cavity, common three-mirror folded cavity (V-shaped cavity), four-mirror folded cavity (Z-shaped cavity) and other structures need to be composed of three or more cavity mirrors, but the existing devices cannot generally adjust the number of cavity mirrors inside the resonant cavity, which makes it difficult for the laser to adapt to different application scenarios and has poor adaptability. At the same time, the cavity mirror will absorb part of the laser energy during laser irradiation, causing the surface temperature to rise and thermal deformation to occur; this thermal deformation is influenced by factors such as axial linear expansion of the material, thermal stress deformation, and limited flexure of the mirror periphery, and presents non-uniformity, which is prone to local uneven heating under long-term action. A single cooling device cannot solve this non-uniform heat distribution, which is prone to cause overheating in some areas of the cavity mirror, and further cause lens deformation, beam quality degradation, and even cause permanent damage to the cavity mirror, which severely limits the stable operation and application range of the laser.

[0003] However, the existing technology not only fails to break through the adaptability bottleneck caused by the fixed number of cavity mirrors and the risk of thermal deformation caused by single cooling, but also ignores the differentiated cooling needs of the total reflection mirror and the output mirror due to functional differences. The back (non-reflective surface) of the total reflection mirror does not participate in the light path, so even if the area is shielded, it will not directly affect the light field distribution in the cavity. However, the output mirror needs to simultaneously realize partial laser transmission output and cavity light feedback function, and its two sides must be completely unshielded. If there is shielding, it will cause the transmitted laser to be absorbed or scattered, resulting in a decrease in output power and deterioration of beam quality. This essential difference in function makes it impossible for the total reflection mirror and the output mirror to share the same cooling structure, and the existing scheme has not designed an adaptive cooling method for this difference, further exacerbating the technical problems of performance optimization and long-term stable operation of the laser. SUMMARY

[0004] The purpose of the present application is to solve the above-mentioned problems existing in the prior art, and to provide a laser resonant cavity mirror adjusting device.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a laser resonant cavity mirror adjusting device, comprising a fixed shell, the inside of the fixed shell is fixedly installed with support bases on the left and right sides, the top end of the support base is installed with a moving mechanism, a sliding frame is arranged between the two moving mechanisms, the top end of the sliding frame is provided with an adjusting mechanism, the working end of the adjusting mechanism is installed with a cooling liquid storage tank, the top end of the cooling liquid storage tank is fixedly installed with a fixed frame, the inside of the fixed frame is movably installed with a first mounting plate or a second mounting plate, the first mounting plate is used for installing an output mirror, and the second mounting plate is used for installing a total reflection mirror.

[0006] The output mirror is provided with a first heat dissipation mechanism mounted on the cooling liquid storage tank, and the first heat dissipation mechanism is used for cooling the output mirror.

[0007] The full mirror is provided with a second heat dissipation mechanism mounted on the cooling liquid storage tank, and the second heat dissipation mechanism is used for cooling the full mirror.

[0008] Preferably, the moving mechanism comprises a first lead screw mounted at the top end of the support base, a plurality of first sliding blocks are slidingly mounted on the first lead screw, the sliding frame is arranged between the two first sliding blocks which are symmetrical, a retractable protrusion is mounted on the side of the first sliding block close to the sliding frame, and a groove matched with the protrusion is formed in the sliding frame.

[0009] Preferably, a connecting block is fixedly connected to the top end of the side of the sliding frame close to the first sliding block, a telescopic plate is mounted on one end of the side wall of the connecting block close to the first sliding block, the telescopic plate is located above the top wall of the fixed shell, first hydraulic rods are arranged on both sides of the left and right side walls of the fixed shell, clamping plates are commonly connected to the telescopic ends of the two first hydraulic rods located on the same side, and notches matched with the telescopic plate are arranged on the side of the lower end of the clamping plate close to the telescopic plate.

[0010] Preferably, the adjusting mechanism comprises a second lead screw mounted at the top end of the sliding frame, a second sliding block is slidingly mounted on the second lead screw, a plurality of second hydraulic rods are fixedly mounted at the top end of the second sliding block, a rotating platform is commonly connected to the telescopic ends of the second hydraulic rods, and the cooling liquid storage tank is fixedly mounted on the working end of the rotating platform.

[0011] Preferably, a clamping block is movably mounted inside the top of the fixed frame, and the clamping block is used for locking the position of the first mounting plate or the second mounting plate.

[0012] Preferably, the first heat dissipation mechanism comprises a first fixed plate fixedly mounted at the top end of the cooling liquid storage tank, a through hole is formed in the first fixed plate, the through hole corresponds to the position and size of the output mirror, two arc-shaped connecting blocks arranged in symmetry are fixedly mounted on the side of the first fixed plate close to the output mirror, air holes are formed in the arc-shaped connecting blocks, a first mounting shell is fixedly mounted between the two arc-shaped connecting blocks, a second mounting shell is rotatably mounted between the first mounting shell and the first mounting plate, the second mounting shell is in close contact with the first mounting shell, and an annular cavity is formed between the second mounting shell and the first mounting shell, and a circulating cooling assembly is arranged between the annular cavity and the cooling liquid storage tank.

[0013] Preferably, the circulating cooling assembly comprises a water inlet pipe connected with the output end of the cooling liquid storage tank and a water outlet pipe connected with the input end of the cooling liquid storage tank, and the water inlet pipe and the water outlet pipe are both communicated with the inside of the annular cavity.

[0014] Preferably, a first gear is fixedly installed on the outer side wall of the second mounting shell, an arc-shaped gear rack is rotationally connected to the side of the second mounting shell away from the second mounting shell, a plurality of air blowing pipes are installed on the inner side of the arc-shaped gear rack, the air blowing pipes are connected with air blowing devices installed in the arc-shaped gear rack, a second motor and a third motor are installed on the first fixed plate, a first gear is keyed connected to the output end of the second motor, a second gear and a third gear are sequentially keyed connected to the output end of the third motor, the first gear and the third gear are both meshingly connected with the arc-shaped gear rack, and the second gear is meshingly connected with the first gear.

[0015] Preferably, the second heat dissipation mechanism comprises a second fixed plate fixedly installed on the cooling liquid storage tank, a third mounting shell is fixedly installed on the side of the second fixed plate close to the total reflection mirror, a fourth mounting shell is rotationally installed between the third mounting shell and the second fixed plate, the fourth mounting shell is in close contact with the third mounting shell, and a cavity is formed between the fourth mounting shell and the third mounting shell, and a circulating cooling assembly is arranged between the cavity and the cooling liquid storage tank below the second fixed plate.

[0016] Preferably, a second gear is fixedly installed on the outer side wall of the fourth mounting shell, a fourth motor is fixedly installed on the second fixed plate, a fourth gear is keyed connected to the output end of the fourth motor, and the fourth gear is meshingly connected with the second gear.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. In the aspect of fixing the output mirror, the cooperation of the first mounting plate and the fixed frame ensures that the output mirror is not blocked on both sides, and the effective cooling of the output mirror by the circulating cooling liquid, the flow of the cooling liquid between the first mounting shell and the second mounting shell can not only timely take away the edge heat, but also avoid the transmission of mechanical vibration to the mirror surface, so as to ensure the stable operation of the output mirror and avoid the laser deviation phenomenon.

[0019] 2. When the laser stops working, the second mounting shell and the air blowing pipe rotate synchronously, so that the cooling liquid and the gas flow uniformly cover the surface of the output mirror; the periodic contact realizes the uniformity of heat dissipation, and the airflow parallel to the mirror surface forms forced convection, which can not only quickly take away the heat of the mirror surface, but also effectively prevent dust from adhering, avoid the decline of optical performance, and improve the service life of the output mirror.

[0020] 3. The device is used for cooling the total reflection mirror, the third and fourth mounting shells are combined to cover the back and side of the mirror, the cooling liquid directly acts on the area with the highest energy density of the light spot, and the core heat is quickly led out; when the fourth mounting shell rotates, the cooling liquid flows and periodically changes the contact area, so that the heat diffusion speed is improved, the local overheating phenomenon is avoided, and the uniformity of the overall temperature of the total reflection mirror is maintained.

[0021] 4. In terms of optical assembly adjustment, the device realizes accurate position, angle and height adjustment of the output mirror and the total reflection mirror through multi-dimensional combination of the lead screw, the sliding block, the hydraulic rod and the rotating platform; this mode can not only quickly complete the position matching of the mirror, but also ensure the stability of the optical path in fine adjustment, improve the cavity assembly and adjustment efficiency, reduce the manual intervention error, and provide reliable guarantee for subsequent laser output.

[0022] 5. The device can realize quick switching of the three-mirror and four-mirror folded cavity through the clamping device and the rotating block. In the switching process, the output mirror moves downward and is protected from dust, avoiding optical pollution, and releasing the space above to facilitate the adjustment of other lenses; by flexibly changing the number of cavity mirrors, the adaptability of the laser is enhanced, and the thermal load and wear are balanced through rotation, prolonging the overall service life.

[0023] In summary, the device forms multiple safeguards in terms of cooling, fixing and adjusting of the output mirror and the total reflection mirror, realizes efficient heat dissipation and dust protection, and improves the assembly and adjustment flexibility and adaptability; through the switchable cavity mirror structure and multi-dimensional adjustment design, the service life of the optical element is prolonged, the long-term stable operation of the laser is ensured, and the practicality and reliability of the laser are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The present application proposes a whole structure schematic diagram of a laser resonant cavity mirror assembly and adjustment device;

[0025] Figure 2 The present application proposes a whole structure schematic diagram of a laser resonant cavity mirror assembly and adjustment device;

[0026] Figure 3 The present application proposes a whole structure schematic diagram of a laser resonant cavity mirror assembly and adjustment device;

[0027] Figure 4 The present application proposes a whole structure schematic diagram of a laser resonant cavity mirror assembly and adjustment device;

[0028] Figure 5 The present application proposes a whole structure schematic diagram of a laser resonant cavity mirror assembly and adjustment device;

[0029] Figure 6It is a full section structure schematic view of the first mounting shell of the laser resonant cavity mirror assembling and adjusting equipment provided by the application;

[0030] Figure 7 It is a detail enlarged view of A of Figure 6

[0031] Figure 8 It is a split view of the second heat dissipation mechanism of the laser resonant cavity mirror assembling and adjusting equipment provided by the application;

[0032] Figure 9 It is a full section structure schematic view of the third mounting shell of the laser resonant cavity mirror assembling and adjusting equipment provided by the application;

[0033] Figure 10 It is a detail enlarged view of B of Figure 9

[0034] Figure 11 It is a full section structure schematic view of the rotating block of the laser resonant cavity mirror assembling and adjusting equipment provided by the application.

[0035] In the figure: 1 fixed shell, 2 first hydraulic rod, 3 clamping plate, 4 first lead screw, 5 first sliding block, 6 second lead screw, 7 second sliding block, 8 second hydraulic rod, 9 rotating platform, 10 cooling liquid storage tank, 11 first fixed plate, 12 second fixed plate, 13 sliding frame, 14 connecting block, 15 supporting base, 16 telescopic plate, 17 first motor, 18 rotating block, 19 dustproof plate, 20 baffle, 21 arc-shaped rack, 22 air blowing pipe, 23 first mounting shell, 24 arc-shaped connecting block, 25 second mounting shell, 26 first gear tooth, 27 water inlet pipe, 28 water outlet pipe, 29 fixed frame, 30 first mounting plate, 31 output mirror, 32 clamping block, 33 first gear wheel, 34 second motor, 35 second gear wheel, 36 third gear wheel, 37 third motor, 38 third mounting shell, 39 fourth mounting shell, 40 second gear tooth, 41 second mounting plate, 42 fourth gear wheel, 43 fourth motor, 44 full reflection mirror, 45 clamping device, 46 third hydraulic rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application.

[0037] Referring to Figures 1 to 11 ​​A laser resonator cavity mirror assembly and adjustment device includes a fixed housing 1. Support bases 15 are fixedly installed on both the left and right sides inside the fixed housing 1. A first lead screw 4 is installed at the top of the support base 15. Several first sliding blocks 5 are slidably installed on the first lead screw 4. A sliding frame 13 is provided between two symmetrical first sliding blocks 5. A retractable protrusion is installed on the side of the first sliding block 5 near the sliding frame 13. A groove is provided on the sliding frame 13 to cooperate with the protrusion, so that both ends of the sliding frame 13 are detachably installed with the first sliding blocks 5. When the first sliding blocks 5 move, they can drive the sliding frame 13 to move synchronously. A connecting block 14 is fixedly connected to the top of the sliding frame 13 near the first sliding block 5. A telescopic plate 16 is installed at the end of the connecting block 14 near the side wall of the first sliding block 5. The telescopic plate 16 is located above the top wall of the fixed housing 1. The left and right side walls of the fixed housing 1 are provided with first hydraulic rods 2. The telescopic ends of the two first hydraulic rods 2 on the same side are connected to a clamping plate 3. The lower end of the clamping plate 3 is provided with a notch that cooperates with the telescopic plate 16, so that when the sliding frame 13 moves to a suitable position, the first hydraulic rod 2 drives the clamping plate 3 to press down, and the fixed housing 1 and the clamping plate 3 complete the clamping of the telescopic plate 16, thereby fixing the position of the sliding frame 13.

[0038] A second lead screw 6 is mounted on the top of the sliding frame 13. A second sliding block 7 is slidably mounted on the second lead screw 6. Several second hydraulic rods 8 are fixedly mounted on the top of the second sliding block 7. The telescopic ends of the several second hydraulic rods 8 are connected to a rotating platform 9. A coolant storage tank 10 is fixedly mounted on the working end (i.e., the rotating end) of the rotating platform 9. The coolant storage tank 10 stores coolant such as water. A fixing frame 29 is fixedly mounted on the top of the coolant storage tank 10. A first mounting plate 30 or a second mounting plate 41 is movably mounted inside the fixing frame 29 at the bottom. A locking block 32 is movably mounted inside the frame 29 at the top. The position of the first mounting plate 30 or the second mounting plate 41 can be locked by the locking block 32. There is one first mounting plate 30 for mounting the output mirror 31. Several second mounting plates 41 are provided for mounting the total reflection mirror 44.

[0039] A first fixing plate 11 is fixedly installed on the top of the coolant storage tank 10 on one side of the output mirror 31. The first fixing plate 11 has a through hole, which corresponds to the position and size of the output mirror 31. Two symmetrically arranged arc-shaped connecting blocks 24 are fixedly installed on the side of the first fixing plate 11 near the output mirror 31. A first mounting housing 23 is fixedly installed between the two arc-shaped connecting blocks 24. A second mounting housing 25 is rotatably installed between the first mounting housing 23 and the first mounting plate 30. The second mounting housing 25 is in close contact with the first mounting housing 23, and an annular cavity is formed between them. A first gear tooth 26 is fixedly installed on the outer wall of the second mounting housing 25. An arc-shaped rack 21 is rotatably connected to the side of the first mounting housing 23 away from the second mounting housing 25. Several air blowing pipes 22 are installed on the inner side of the arc-shaped rack 21. The air blowing pipes 22 are connected to an air blowing device (not shown in the figure) installed inside the arc-shaped rack 21.

[0040] The coolant storage tank 10 has an output end connected to an inlet pipe 27. The end of the inlet pipe 27 away from the coolant storage tank 10 is connected to the inside of the first mounting housing 23. The coolant storage tank 10 has an input end connected to an outlet pipe 28. The end of the outlet pipe 28 away from the coolant storage tank 10 is connected to the inside of the first mounting housing 23. This allows the coolant flowing out of the coolant storage tank 10 to enter the cavity between the first mounting housing 23 and the second mounting housing 25, and after cooling, it can return to the coolant storage tank 10, thus achieving cyclic cooling. A second motor 34 and a third motor 37 are mounted on the first fixed plate 11. The output end of the second motor 34 is keyed to a first gear 33, and the output end of the third motor 37 is keyed to a second gear 35 and a third gear 36 in sequence. The first gear 33 and the third gear 36 are both meshed with the arc-shaped rack 21, and the second gear 35 is meshed with the first gear tooth 26, so that the second motor 34 and the third motor 37 can drive the arc-shaped rack 21 and the second mounting housing 25 to rotate when they are running.

[0041] A second mounting plate 12 is fixedly installed on the coolant storage tank 10 on one side of the total reflection mirror 44. A third mounting housing 38 is fixedly installed on the side of the second mounting plate 12 closest to the total reflection mirror 44. A fourth mounting housing 39 is rotatably installed between the third mounting housing 38 and the second mounting plate 41. The fourth mounting housing 39 is in close contact with the third mounting housing 38, and an annular cavity is formed between them. A second gear 40 is fixedly installed on the outer wall of the fourth mounting housing 39. A fourth motor 43 is fixedly installed on the second mounting plate 12. A fourth gear 42 is keyed to the output end of the fourth motor 43. The fourth gear 42 meshes with the second gear 40, so that the fourth motor 43 can drive the fourth mounting housing 39 to rotate synchronously when it runs. Similarly, the coolant storage tank 10 below the second mounting plate 12 is also connected to an inlet pipe 27 and an outlet pipe 28. The ends of the inlet pipe 27 and the outlet pipe 28 away from the coolant storage tank 10 are connected to the interior of the third mounting housing 38.

[0042] A first motor 17 is fixedly installed on the inner wall of either the left or right side of the fixed housing 1. A rotating block 18 is fixedly connected to the output end of the first motor 17. A third hydraulic rod 46 is fixedly installed inside the lower part of the rotating block 18. The telescopic end of the third hydraulic rod 46 faces upward and is fixedly connected to a clamping device 45. A clamping groove that cooperates with the clamping device 45 is opened at the lower end of the sliding frame 13. A dustproof plate 19 is fixedly installed on the inner bottom wall of the fixed housing 1 below the rotating block 18. A baffle 20 is provided on the side of the dustproof plate 19 near the rotating block 18. An electric telescopic rod is installed below the baffle 20 for adjusting its height. The first motor 17, the rotating block 18, the dustproof plate 19 and the baffle 20 are located in the same vertical plane.

[0043] In use, the fixed housing 1 houses an output mirror 31 and a total reflection mirror 44. After the laser beam enters, its angle is changed by multiple total reflection mirrors 44, and it finally exits from the output mirror 31. Since the function of the output mirror 31 is to allow some laser light to pass through its surface while reflecting the remaining photons to maintain the optical amplification process within the resonant cavity, both sides of the output mirror 31 need to be unobstructed. In this device, the output mirror 31 is fixed by a first mounting plate 30 to ensure that both sides of the output mirror 31 are unobstructed. Then, the first mounting plate 30 is inserted into the fixed frame 29, and the final fixing is completed by inserting a locking block 32.

[0044] The coolant in the coolant storage tank 10 flows out through the inlet pipe 27 and then flows in through the outlet pipe 28 to cool the output mirror 31. When the output mirror 31 is in operation, the coolant is mainly delivered to the annular cavity between the first mounting housing 23 and the second mounting housing 25 through the inlet pipe 27. The coolant carries away the heat from the edge of the output mirror 31. During this process, the coolant is continuously replaced through the inlet pipe 27 and the outlet pipe 28 to ensure the cooling effect. At this time, only the coolant flows in the annular cavity between the first mounting housing 23 and the second mounting housing 25. This ensures the cooling effect while preventing mechanical vibration from being transmitted to the output mirror 31 through the cooling system, which could cause a slight displacement of the output mirror 31 and affect the laser effect.

[0045] When the laser stops working, the first mounting housing 23 is fixed to the first fixed plate 11 by the arc-shaped connecting block 24, the arc-shaped rack 21 is rotatably connected to the first mounting housing 23, and the first mounting housing 23 and the second mounting housing 25 are rotatably connected. After the second motor 34 and the third motor 37 start, the second gear 35 drives the second mounting housing 25 to rotate through the first gear 26, and the first gear 33 and the third gear 36 drive the air blowing pipe 22 to rotate through the arc-shaped rack 21. While the second mounting housing 25 on the outside of the output mirror 31 rotates, the coolant inside it also flows. At this time, the contact area between the second mounting housing 25 and the output mirror 31 changes periodically, so that heat can be more evenly diffused from the output mirror 31 to the second mounting housing 25, avoiding local overheating and accelerating heat dissipation efficiency. The rotation of the second mounting housing 25 also allows its various areas to bear the heat load in turn, ensuring that its overall temperature distribution tends to be uniform. Furthermore, when the second mounting housing 25 rotates, the air blowing pipe 22 also rotates synchronously. At this time, the gas flows along the surface of the output mirror 31 at a 0° angle (parallel to the mirror surface), carrying away heat and evenly covering the entire mirror surface. Forced convection cooling is achieved by blowing low-temperature gas parallel to the output mirror 31. This parallel airflow can quickly remove heat from the surface of the output mirror 31 while preventing dust adhesion. Simultaneously, the air blowing pipe 22 is unobstructed, and the arc-shaped connecting block 24 has ventilation holes, allowing the airflow to evenly and unobstructedly cover all areas of the mirror surface when the air blowing pipe 22 rotates, avoiding localized airflow attenuation.

[0046] The back surface (non-reflective surface) of the total reflection mirror 44 does not participate in the optical path, so blocking it will not directly affect the optical field distribution within the cavity. Therefore, the back surface of the total reflection mirror 44 can be fully covered. One end of the inlet pipe 27 and the outlet pipe 28 is connected to the third mounting housing 38, which is fixedly mounted on the second fixing plate 12. The fourth mounting housing 39 is rotatably connected to the third mounting housing 38. For cooling the total reflection mirror 44, when the laser is working, the coolant inside the coolant storage tank 10 flows into the space between the third mounting housing 38 and the fourth mounting housing 39 through the inlet pipe 27. The fourth mounting housing 39 covers both the back surface and the sides of the total reflection mirror 44. The center of the fourth mounting housing 39 directly contacts the area with the highest energy density of the light spot in the central region of the total reflection mirror 44, which can quickly dissipate the core heat. The sidewalls of the fourth mounting housing 39 directly contact the edges of the total reflection mirror 44, accelerating the lateral diffusion of heat. When the laser stops working, the fourth motor 43 is started to drive the fourth gear 42 to rotate. The fourth gear 42 then drives the fourth mounting housing 39 to rotate through the second gear 40. At this time, the coolant flows inside the fourth mounting housing 39. Meanwhile, the fourth mounting housing 39 rotates around the total reflection mirror 44. Through periodic contact and rotation, heat can be dissipated more effectively, avoiding local overheating.

[0047] When adjusting the output mirror 31 and the total reflection mirror 44, the first sliding block 5 has a retractable protrusion on its side, and the sliding frame 13 has a groove on its side that matches the protrusion. After the protrusion inside the first sliding block 5 is inserted into the sliding frame 13, the first lead screw 4 drives the first sliding block 5 to move, thereby driving the sliding frame 13 to move, thus adjusting the position of the output mirror 31 or the total reflection mirror 44 one by one. After the position is adjusted, the first hydraulic rod 2 is activated to drive the clamping plate 3 to press down, and the telescopic plate 16 is clamped by the fixed housing 1 and the clamping plate 3, thereby determining the relative position of the output mirror 31 and the total reflection mirror 44. Then, the output mirror 31 and the total reflection mirror 44 are adjusted in multiple dimensions one by one. The output mirror 31 and the total reflection mirror 44 are fixed to the coolant storage tank 10 by the fixing frame 29. The coolant storage tank 10 is rotatably mounted on the rotating platform 9, and the rotating platform 9 and the second sliding block 7 are connected by the second hydraulic rod 8. The left and right positions of the output mirror 31 and the total reflection mirror 44 can be adjusted by the second lead screw 6. The height of the output mirror 31 and the total reflection mirror 44 can be adjusted by adjusting the length of the second hydraulic rod 8. The output mirror 31 and the total reflection mirror 44 can be rotated by rotating the platform 9. Finally, the angle of the output mirror 31 and the total reflection mirror 44 can be finely adjusted by adjusting the rotation angle of the coolant storage tank 10, thus completing the multi-dimensional adjustment of the output mirror 31 and the total reflection mirror 44.

[0048] Furthermore, this device can adjust the number of internal mirrors in the resonant cavity, thereby enabling rapid conversion between a three-mirror folded cavity and a four-mirror folded cavity. The clamping device 45 is connected to the rotating block 18 via the third hydraulic rod 46. When switching is required, the output mirror 31 to be switched is moved above the rotating block 18 via the first lead screw 4, the first sliding block 5, and the sliding frame 13. Then, the third hydraulic rod 46 is activated to extend the clamping device 45. The sliding frame 13 has a clamping groove matching the clamping device 45. After the clamping device 45 extends into the sliding frame 13, it is activated to clamp the sliding frame 13. Then, the telescopic plate 16 is retracted, and the first motor 17 is activated to drive the rotating block 18 to rotate, thereby driving the output mirror 31 to rotate. After rotation, the output mirror 31 is located in the lower area inside the fixed housing 1. At this time, the dustproof plate 19 will cover the front of the output mirror 31 to protect it, reduce surface contamination of the output mirror 31, and extend its service life. Furthermore, the baffle 20 extends under the action of the electric telescopic rod to abut against the locking block 32, ensuring the stability of the output mirror 31. Additionally, when the output mirror 31 rotates to the lower position, the upper space is completely released, allowing the operator to independently adjust the position of the remaining output mirrors 31 without worrying about mechanical interference. This allows for flexible adjustment of the resonant cavity type by changing the number of output mirrors 31, improving the laser's adaptability. Moreover, for the three-mirror folding cavity, periodically rotating the output mirrors 31 can balance heat load and mechanical wear, extending the overall service life. If an output mirror 31 fails, the lower output mirror 31 can be replaced with the faulty one, quickly restoring operational capability.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser resonator mirror assembly and adjustment device, comprising a fixed housing (1), characterized in that, The fixed housing (1) has a support base (15) fixedly installed on both the left and right sides inside. The support base (15) has a moving mechanism installed at the top. A sliding frame (13) is provided between two symmetrical moving mechanisms. The sliding frame (13) has an adjustment mechanism at the top. The working end of the adjustment mechanism is equipped with a coolant storage tank (10). The top of the coolant storage tank (10) is fixedly installed with a fixed frame (29). The fixed frame (29) has a first mounting plate (30) or a second mounting plate (41) movably installed inside. The first mounting plate (30) is used to install the output mirror (31), and the second mounting plate (41) is used to install the total reflection mirror (44). The output mirror (31) has a first heat dissipation mechanism installed on the coolant storage tank (10) on one side. The first heat dissipation mechanism is used to cool down the output mirror (31). The total reflection mirror (44) has a second heat dissipation mechanism installed on the coolant storage tank (10) on one side. The second heat dissipation mechanism is used to cool down the total reflection mirror (44). The moving mechanism includes a first lead screw (4) installed on the top of the support base (15), a plurality of first sliding blocks (5) are slidably installed on the first lead screw (4), and the sliding frame (13) is located between two symmetrical first sliding blocks (5). A retractable protrusion is installed on the side of the first sliding block (5) near the sliding frame (13), and a groove that cooperates with the protrusion is provided on the sliding frame (13). The first heat dissipation mechanism includes a first fixing plate (11) fixedly installed on the top of the coolant storage tank (10). The first fixing plate (11) has a through hole, which corresponds to the position and size of the output mirror (31). Two arc-shaped connecting blocks (24) are fixedly installed on the side of the first fixing plate (11) near the output mirror (31) and are arranged symmetrically. The arc-shaped connecting blocks (24) have vent holes. A first mounting housing (23) is fixedly installed between the two arc-shaped connecting blocks (24). A second mounting housing (25) is rotatably installed between the first mounting housing (23) and the first mounting plate (30). The second mounting housing (25) is in close contact with the first mounting housing (23) and an annular cavity is formed between them. A circulating cooling component is provided between the annular cavity and the coolant storage tank (10). The circulating cooling assembly includes an inlet pipe (27) connected to the output end of the coolant storage tank (10) and an outlet pipe (28) connected to the input end of the coolant storage tank (10). The ends of the inlet pipe (27) and the outlet pipe (28) away from the coolant storage tank (10) are both connected to the interior of the annular cavity. A first gear (26) is fixedly installed on the outer wall of the second mounting housing (25). An arc rack (21) is rotatably connected to the side of the first mounting housing (23) away from the second mounting housing (25). Several air blowing pipes (22) are installed on the inner side of the arc rack (21). The air blowing pipes (22) are connected to the air blowing device installed inside the arc rack (21). A second motor (34) and a third motor (37) are installed on the first fixing plate (11). A first gear (33) is keyed to the output end of the second motor (34). A second gear (35) and a third gear (36) are keyed to the output end of the third motor (37). The first gear (33) and the third gear (36) are both meshed with the arc rack (21). The second gear (35) is meshed with the first gear (26). A first motor (17) is fixedly installed on the inner wall of either the left or right side of the fixed housing (1). The output end of the first motor (17) is fixedly connected to a rotating block (18). A third hydraulic rod (46) is fixedly installed inside the lower part of the rotating block (18). The telescopic end of the third hydraulic rod (46) is upward and fixedly connected to a clamping device (45). The lower end of the sliding frame (13) is provided with a clamping groove that cooperates with the clamping device (45). A dustproof plate (19) is fixedly installed on the bottom wall of the fixed housing (1) below the rotating block (18). A baffle (20) is provided on the side of the dustproof plate (19) close to the rotating block (18). An electric telescopic rod is installed below the baffle (20) for adjusting its height. The first motor (17), the rotating block (18), the dustproof plate (19) and the baffle (20) are located in the same vertical plane.

2. The laser resonator mirror assembly and adjustment device according to claim 1, characterized in that, The sliding frame (13) is fixedly connected to a connecting block (14) at the top of the side of the first sliding block (5). A telescopic plate (16) is installed at the end of the connecting block (14) near the side wall of the first sliding block (5). The telescopic plate (16) is located above the top wall of the fixed housing (1). The left and right side walls of the fixed housing (1) are provided with first hydraulic rods (2). The telescopic ends of the two first hydraulic rods (2) located on the same side are connected to a clamping plate (3). The lower end of the clamping plate (3) is provided with a notch that cooperates with the telescopic plate (16) on the side near the telescopic plate (16).

3. The laser resonator mirror assembly and adjustment device according to claim 1, characterized in that, The adjustment mechanism includes a second lead screw (6) installed on the top of the sliding frame (13), a second sliding block (7) is slidably installed on the second lead screw (6), a plurality of second hydraulic rods (8) are fixedly installed on the top of the second sliding block (7), and the telescopic ends of the plurality of second hydraulic rods (8) are connected to the rotating platform (9). The coolant storage tank (10) is fixedly installed on the working end of the rotating platform (9).

4. The laser resonator mirror assembly and adjustment device according to claim 1, characterized in that, A locking block (32) is movably installed inside the upper part of the fixed frame (29), and the locking block (32) is used to lock the position of the first mounting plate (30) or the second mounting plate (41).

5. The laser resonator mirror assembly and adjustment device according to claim 1, characterized in that, The second heat dissipation mechanism includes a second fixing plate (12) fixedly installed on the coolant storage tank (10). A third mounting housing (38) is fixedly installed on the side of the second fixing plate (12) near the total reflection mirror (44). A fourth mounting housing (39) is rotatably installed between the third mounting housing (38) and the second mounting plate (41). The fourth mounting housing (39) is in close contact with the third mounting housing (38), and a cavity is formed between them. A circulating cooling assembly is also provided between the cavity and the coolant storage tank (10) below the second fixing plate (12).

6. The laser resonator mirror assembly and adjustment device according to claim 5, characterized in that, A second gear (40) is fixedly installed on the outer wall of the fourth mounting housing (39), and a fourth motor (43) is fixedly installed on the second fixing plate (12). The output end of the fourth motor (43) is keyed to a fourth gear (42), and the fourth gear (42) meshes with the second gear (40).

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