Intracavity adjusting device of laser

Abstract

The utility model provides a laser intracavity adjusting device, which comprises an adjusting mirror seat, piezoelectric ceramics, a total-reflection lens and a fastening assembly, a laser main body and a light collecting mirror are respectively arranged in two cavities of the adjusting mirror seat, the piezoelectric ceramics are arranged on the light collecting mirror, the total-reflection lens is arranged on the top of the piezoelectric ceramics, and the fastening assembly is arranged on the top of the total-reflection lens. A fastening assembly is installed on the side edge of the light collecting lens, and a supporting frame is installed on the surface of the light collecting lens. According to the laser intracavity adjusting device, the mode that piezoelectric ceramics are added to be matched with an optical path adjusting device is adopted, the cavity length of the laser can be easily adjusted under the cooperation of instructions of all the reference adjusting modules, the production efficiency of the laser is obviously promoted in the long-term use process, the appearance structure is simple and compact, and the laser intracavity adjusting device is suitable for large-scale popularization and application. And the adjusting stability is good. The adjusting process can be achieved by rotating the knob at the front end, the adjusting accuracy is high, high stability is achieved, and parameters in the current adjusting state can be indicated.

Description

Technical Field

[0001] The utility model relates to the technical field of laser production, in particular to a laser cavity adjustment device. Background Art

[0002] RF lasers have the advantages of high power output, high efficiency, high stability, high beam quality, wide wavelength range, and easy maintenance. They are widely used in laser cutting, laser marking, laser welding, laser drilling, laser cold processing and other fields on industrial production lines. An intracavity adjustment device is installed inside the laser, which is an important structure in the research and development and production of lasers.

[0003] The laser cavity adjustment device prepared in the prior art has a fixed cavity length and cannot be changed, which makes it impossible to improve the cavity length matching accuracy. After long-term use, it will cause deviations in the indication light path and require fine-tuning, resulting in inconvenience in use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a laser cavity adjustment device to solve the problems raised in the above-mentioned background technology. The present invention has good performance and adjustment stability, and a simple structure, stable and reliable, low requirements for manufacturing and assembly, a simple and convenient adjustment process, and can mark the current adjustment angle parameters.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a laser cavity adjustment device, including an adjustment mirror seat, piezoelectric ceramics, a full-return mirror and a fixing assembly, the two cavities of the adjustment mirror seat are respectively provided with a laser body and a light collecting mirror, the light collecting mirror is provided with a piezoelectric ceramic, the full-return mirror is installed on the top of the piezoelectric ceramic, the side of the light collecting mirror is installed with a fixing assembly, and a support frame is installed on the surface of the light collecting mirror, and the two ends of the support frame are fixedly connected to the adjustment mirror seat.

[0006] Furthermore, a strip-shaped hole is provided in the light collecting mirror, and the fixing assembly includes an adjusting rod, a positioning sleeve and a threaded column. An adjusting knob is provided at the front end of the adjusting rod, and the adjusting rod passes through the inside of the strip-shaped hole.

[0007] Furthermore, a clamping plate is connected to the rear end of the adjusting rod, a penetration rod is installed in the middle of the clamping plate, a marking cone block is provided at the end of the penetration rod, and the penetration rod extends outward from the bottom of the adjustment mirror seat.

[0008] Furthermore, the top of the insertion rod is sleeved in the middle position of the two clamping plates through a hole, the threaded column is embedded in the interior of the light collecting mirror, an adjustment groove is opened at the end of the adjustment mirror seat, and the adjustment knob is hidden in the adjustment groove.

[0009] Furthermore, a fixing rod is inserted into the strip-shaped hole, limit baffles are arranged at both ends of the fixing rod, and a threaded sleeve is arranged in the middle of the fixing rod.

[0010] Furthermore, the threaded column passes through the inside of the threaded sleeve, the inner sides of the limit baffle are respectively clamped on both sides of the surface of the light collecting mirror, and a rotating shaft is installed in the middle of the support frame, and the rotating shaft passes through the inside of the light collecting mirror.

[0011] Furthermore, the piezoelectric ceramic is connected to a direct current within 200V through a circuit, and the length variation range of the piezoelectric ceramic after power is applied is 12 microns.

[0012] Beneficial effects of the utility model:

[0013] 1. The laser cavity adjustment device adopts the method of adding piezoelectric ceramics to match the optical path adjustment device. Under the instruction of each reference adjustment module, the cavity length of the laser can be easily adjusted, which has a significant promoting effect on the production efficiency of the laser during long-term use.

[0014] 2. The laser cavity adjustment device has a simple and compact appearance and structure, and has good adjustment stability. After precise adjustment, the indicator light path is in a positioned state. If the locking piece is tightened, there is no need to repeatedly adjust the indicator light. It has a simple structure, is stable and reliable, is easy to use, has low requirements for manufacturing and assembly, and is convenient for mass production.

[0015] 3. The laser cavity adjustment device can realize the adjustment process by turning the knob at the front end. It has high adjustment accuracy, high stability, and can indicate the parameters in the current adjustment state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a laser cavity adjustment device according to the utility model;

[0017] Figure 2 This is a new optical path cross-sectional view of the present invention;

[0018] Figure 3 This is a structural diagram of the utility model after the tightening assembly is installed;

[0019] Figure 4 This is a disassembled diagram of the fastening component part of the utility model;

[0020] In the figure: 1. Adjustment mirror seat; 2. Piezoelectric ceramics; 3. Full return mirror; 4. Adjustment groove; 5. Laser body; 6. Fixing assembly; 7. Light collecting mirror; 8. Adjustment knob; 9. Adjustment rod; 10. Positioning sleeve; 11. Strip hole; 12. Clamping plate; 13. Insertion rod; 14. Marking cone block; 15. Support frame; 16. Rotating shaft; 17. Limit baffle; 18. Fixing rod; 19. Threaded sleeve; 20. Threaded column. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 4 The utility model provides the following technical solutions: a laser cavity adjustment device, including an adjustment mirror seat 1, a piezoelectric ceramic 2, a full-reflection mirror 3 and a fastening assembly 6, wherein the two cavities of the adjustment mirror seat 1 are respectively provided with a laser body 5 and a light collecting mirror 7, the light collecting mirror 7 is provided with a piezoelectric ceramic 2, the full-reflection mirror 3 is installed on the top of the piezoelectric ceramic 2, the side of the light collecting mirror 7 is installed with a fastening assembly 6, and a support frame 15 is installed on the surface of the light collecting mirror 7, and the two ends of the support frame 15 are fixedly connected to the adjustment mirror seat 1. The laser body 5 in the laser cavity adjustment device is a laser entity, and the side close to the refraction of the light path is milled out to install the piezoelectric ceramic 2. The light output mirror seat is an entity with the light output mirror and the reflector installed, and the above is an entity with two reflectors installed.

[0023] By adding piezoelectric ceramics 2 to match the optical path adjustment device, the cavity length of the laser can be easily adjusted under the instructions of each reference adjustment module, which has a significant promoting effect on the production efficiency of the laser during long-term use.

[0024] In this embodiment, a strip hole 11 is provided in the light collecting mirror 7, and the fastening assembly 6 includes an adjusting rod 9, a positioning sleeve 10 and a threaded column 20. The front end of the adjusting rod 9 is provided with an adjusting knob 8, and the adjusting rod 9 passes through the inside of the strip hole 11. The rear end of the adjusting rod 9 is connected with a card plate 12, and a penetration rod 13 is installed in the middle of the card plate 12. The end of the penetration rod 13 is provided with a marking cone block 14, and the penetration rod 13 passes outward from the bottom of the adjustment mirror seat 1, and the top of the penetration rod 13 is sleeved in the middle position of the two card plates 12 through a hole, and the threaded column 20 is embedded in the interior of the light collecting mirror 7. The end of the adjustment mirror seat 1 is provided with an adjusting groove 4, and the adjusting knob 8 is hidden in the inside of the adjusting groove 4. The adjustment process can be realized by turning the knob at the front end, and the adjustment is highly accurate, has high stability, and can indicate the parameters in the current adjustment state.

[0025] Specifically, when the full-reflection lens 3 is adjusted for angle, the adjusting rod 9 is driven to rotate directly by controlling the adjusting knob 8, which can drive the positioning sleeve 10 and the threaded column 20 on the adjusting rod 9 to rotate, and the threaded column 20 part cooperates with the threaded sleeve 19 to control the entire tightening rod 18 to move horizontally along the adjusting rod 9, thereby controlling the entire light-collecting mirror 7 to rotate toward the front end or the rear end. During the rotation process, since the strip hole 11 provides a moving space for the adjusting rod 9, it also provides a space for the tightening rod 18 to move forward and backward, and the pulling effect of the tightening rod 18 can be used to realize the angle control of the light-collecting mirror 7 and the locking process after the control.

[0026] In this embodiment, a fixing rod 18 is inserted into the strip hole 11, and both ends of the fixing rod 18 are provided with a limit baffle 17. A threaded sleeve 19 is provided in the middle of the fixing rod 18, and the threaded column 20 passes through the inside of the threaded sleeve 19. The inner sides of the limit baffle 17 are respectively clamped on both sides of the surface of the light collecting mirror 7. A rotating shaft 16 is installed in the middle of the support frame 15, and the rotating shaft 16 passes through the inside of the light collecting mirror 7. With the support provided by the rotating shaft 16, the light collecting mirror 7 can be rotated around the rotating shaft when the angle is finely adjusted by the fixing assembly 6, and the insertion rod 13 at the rear end and the marking cone block 14 at the end can also be driven to move along the outer side of the bottom of the adjustment mirror seat 1 during the angle adjustment process. Therefore, the adjustment state in the laser cavity at this time can be intuitively judged by the position of the marking block.

[0027] In this embodiment, the piezoelectric ceramic 2 is connected to a direct current within 200V through a circuit, and the length change range of the piezoelectric ceramic 2 after power is applied is 12 microns. The appearance structure of the adjustment device is simple and compact, and the adjustment stability is good; after precise adjustment, the indicating light path is in a positioning state, and if the locking piece is tightened, the indicating light adjustment does not need to be repeated; the structure is simple, stable and reliable, easy to use, and has low requirements for manufacturing and assembly, which is convenient for mass production.

[0028] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser cavity adjustment device, characterized in that: The invention comprises an adjusting mirror seat (1), a piezoelectric ceramic (2), a fully reflective mirror (3) and a fixing assembly (6); a laser body (5) and a light collecting mirror (7) are respectively arranged in two cavities of the adjusting mirror seat (1); the light collecting mirror (7) is provided with a piezoelectric ceramic (2); the fully reflective mirror (3) is mounted on the top of the piezoelectric ceramic (2); the fixing assembly (6) is mounted on the side of the light collecting mirror (7); and a support frame (15) is mounted on the surface of the light collecting mirror (7); and both ends of the support frame (15) are fixedly connected to the adjusting mirror seat (1).

2. The laser cavity adjustment device according to claim 1, characterized in that: The light collecting mirror (7) is provided with a strip-shaped hole (11), the fastening assembly (6) comprises an adjusting rod (9), a positioning sleeve (10) and a threaded column (20), the front end of the adjusting rod (9) is provided with an adjusting knob (8), and the adjusting rod (9) passes through the inside of the strip-shaped hole (11).

3. The laser cavity adjustment device according to claim 2, characterized in that: The rear end of the adjusting rod (9) is connected to a clamping plate (12), a penetration rod (13) is installed in the middle of the clamping plate (12), a marking cone block (14) is arranged at the end of the penetration rod (13), and the penetration rod (13) is extended outward from the bottom of the adjusting mirror seat (1).

4. The laser cavity adjustment device according to claim 3, characterized in that: The top of the insertion rod (13) is sleeved in the middle position of the two clamping plates (12) through a hole, the threaded column (20) is embedded in the interior of the light collecting mirror (7), the end of the adjustment mirror seat (1) is provided with an adjustment groove (4), and the adjustment knob (8) is hidden in the interior of the adjustment groove (4).

5. The laser cavity adjustment device according to claim 2, characterized in that: A fixing rod (18) is inserted into the strip-shaped hole (11), and limit baffles (17) are arranged at both ends of the fixing rod (18). A threaded sleeve (19) is arranged in the middle of the fixing rod (18).

6. The laser cavity adjustment device according to claim 5, characterized in that: The threaded column (20) passes through the inside of the threaded sleeve (19), the inner sides of the limit baffle (17) are respectively clamped on both sides of the surface of the light collecting mirror (7), and a rotating shaft (16) is installed in the middle of the support frame (15), and the rotating shaft (16) passes through the inside of the light collecting mirror (7).

7. The laser cavity adjustment device according to claim 1, characterized in that: The piezoelectric ceramic (2) is connected to a direct current within 200V through a circuit, and the length variation range of the piezoelectric ceramic (2) after power is supplied is 12 micrometers.

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