Laser quality detection device

Abstract

The invention discloses a laser quality detection device, and relates to the technical field of lasers, the laser quality detection device comprises a workbench, the upper end face of the workbench is fixedly connected with a support frame, the upper end of the support frame is fixedly connected with a light beam quality analyzer body, a supporting plate is arranged above the workbench, and a laser body is placed above the supporting plate; a mounting frame is fixedly connected to the upper end face of the workbench, transverse grooves are formed in the two sides of the mounting frame, the mounting frame is located on the light beam quality analyzer body, the height of the laser device body can be adjusted, the vertical position of a light beam emitted by the laser device body can be directly adjusted, and the detection precision is improved. According to the utility model, the light beam can be accurately aligned with the calibration hole in the calibration plate, whether the light beam corresponds to the calibration hole is observed, an intuitive alignment mode is provided, an operator can intuitively see the position of the light beam, rapid adjustment is facilitated, accurate alignment of the light beam is ensured, and repeated measurement caused by inaccurate alignment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lasers, and specifically to a laser quality detection device. Background Technique

[0002] A laser quality detection device is a device or system specifically used to evaluate and detect various performance indicators of a laser. Through a series of measurement means and methods, it precisely measures and analyzes key parameters such as the output beam quality, power, wavelength, stability, and pulse characteristics of the laser, so as to determine whether the laser meets the design requirements and application standards;

[0003] During the process of detecting the beam quality of a laser, it is necessary to map the beam emitted by the laser to an accurate position on the beam quality analyzer. When calibrating the irradiation position of the beam emitted by the laser, the experience and skill level of the operator will affect the accuracy of alignment. Even when using alignment tools, improper operation by the operator will also lead to inaccurate alignment. If the beam is not accurately aligned with the center of the beam quality analyzer, it will not only result in inaccurate measured beam quality parameters (such as M 2 factor, divergence angle, beam waist diameter, etc.), the M 2 factor is an important indicator for measuring beam quality. Inaccurate alignment will cause the measured value to be too high or too low, affecting the evaluation of the laser performance. Moreover, inaccurate alignment will also cause the beam image captured by the beam pattern analyzer to be incomplete, affecting the accuracy of pattern analysis. The deviation of the beam from the center causes a part of the pattern image to be missing, affecting pattern recognition and the evaluation of the laser mode characteristics. And inaccurate alignment will result in the need for multiple repeated measurements to ensure the accuracy of the measurement results, thereby reducing the detection efficiency of the laser beam.

[0004] Therefore, the present invention proposes a laser quality detection device to solve the above problems. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a laser quality detection device, which can effectively solve the problems in the prior art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the object of the present invention can be realized through the following technical solutions:

[0009] A laser quality detection device, including a workbench, a support frame is fixedly connected to the upper end surface of the workbench, a beam quality analyzer body is fixedly connected to the upper end of the support frame, a support plate is arranged above the workbench, a laser body is placed above the support plate, an installation frame is fixedly connected to the upper end surface of the workbench, horizontal grooves are opened on both sides of the installation frame, the installation frame is located at the beam quality analyzer body, and further includes a beam detection path calibration mechanism and a beam detection obstacle removal mechanism. The beam detection path calibration mechanism includes a moving frame, the moving frame is slidably connected to the workbench, a lead screw is threadedly connected through the moving frame, the lead screw is rotatably connected to the side wall of the installation frame, a telescopic column is fixedly connected to the upper end surface of the moving frame, the telescopic column is fixedly connected to the lower end surface of the support plate, a calibration plate is arranged above the installation frame, the calibration plate is located between the beam quality analyzer body and the laser body, a calibration hole is opened at the center of the side of the calibration plate close to the laser body, the calibration plate and the beam quality analyzer body are on the same horizontal line, and the beam detection path calibration mechanism is used to adjust the irradiation path of the laser body, and the beam detection obstacle removal mechanism is used to clean the dust particles on the beam quality analyzer body.

[0010] As a further scheme of the present invention: a chute is opened on the upper end surface of the moving frame, a sliding plate is slidably connected in the chute, a threaded rod is threadedly connected through the sliding plate, the threaded rod is rotatably connected through the moving frame, a knob is fixedly connected to one end of the threaded rod passing through the moving frame, connecting plates are rotatably connected to both sides of the threaded rod, and the connecting plates are rotatably connected to the lower end surface of the support plate at the end far from the sliding plate.

[0011] As a further scheme of the present invention: frames are symmetrically and fixedly connected to the upper end of the installation frame, lifting blocks are vertically slidably connected in the frames, connecting columns are fixedly connected through the lifting blocks, and the connecting columns are fixedly connected to the calibration plate.

[0012] As a further scheme of the present invention: linkage plates are rotatably connected to the outer surfaces of the connecting columns, sliders are rotatably connected to the ends of the linkage plates far from the connecting columns, the sliders are slidably connected in the horizontal grooves, and counterweight blocks are fixedly connected to the ends of the connecting columns far from the calibration plate.

[0013] As a further scheme of the present invention: sliding columns are fixedly connected to the side walls of the sliders, the sliding columns are slidably connected through the installation frame, and a push plate is fixedly connected between the ends of the two sliding columns far from the sliders, and the push plate is in contact with the support plate in the initial state.

[0014] As a further solution of the present invention: The beam detection obstacle removal mechanism includes a moving block, the moving block is slidably connected to the upper end surface of the workbench, a fixed column is fixedly connected to the upper end of the moving block, a cleaning plate is fixedly connected to the upper end of the fixed column, and the cleaning plate is in contact with the beam quality analyzer body.

[0015] As a further solution of the present invention: A fixing plate is fixedly connected to the outer surface of the fixed column, a vertical groove is opened on one side of the fixing plate close to the mounting frame, a dial rod is slidably connected in the vertical groove, a dial plate is fixedly connected to the end of the dial rod away from the fixing plate, and a rotating shaft is fixedly connected to one side of the dial plate away from the dial rod. The rotating shaft passes through and is rotatably connected to the mounting frame.

[0016] As a further solution of the present invention: A driven pulley is fixedly connected to the end of the rotating shaft away from the dial plate, a belt is sleeved on the outer surface of the driven pulley, a main pulley is arranged on one side of the belt away from the driven pulley, the main pulley is fixedly connected to the lead screw, and a driving motor is fixedly connected to the end of the lead screw away from the mounting frame. The driving motor is fixedly connected to the side wall of the workbench.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a laser quality detection device, which has the following

[0019] beneficial effects:

[0020] 1. By setting the beam detection path calibration mechanism, the height of the laser body can be adjusted, the vertical position of the beam emitted by the laser body can be directly adjusted to accurately align with the calibration holes on the calibration plate, and it can be observed whether the beam corresponds to the calibration holes, providing an intuitive alignment method. The operator can not only intuitively see the position of the beam, which is convenient for quick adjustment to ensure accurate beam alignment, reduce repeated measurements caused by inaccurate alignment, but also ensure that the measured beam quality parameters are more accurate, avoiding the situation where the M 2 factor has a high or low measured value due to inaccurate beam alignment, improving the performance evaluation of the laser body, and accurate alignment can ensure that the beam quality analyzer body captures a complete beam image, avoiding the loss of a part of the mode image, which is helpful for more accurate mode analysis and recognition.

[0021] 2. By setting the lead screw and the moving frame, the distance between the laser body and the beam quality analyzer body during the test can be adjusted to ensure accurate measurement results under different measurement conditions. Different laser bodies have different wavelength and power characteristics. By adjusting the distance, not only can the measurement conditions be optimized to ensure the accuracy of the measurement results, adapt to various types of laser bodies, and improve the overall versatility, but also in beam quality analysis, beam parameters need to be measured at different distances (such as near-field and far-field measurements), and the measurement mode can be flexibly switched to meet various test requirements;

[0022] Among them, by setting the counterweight, during the process of driving the laser body away from the beam quality analyzer body, the calibration plate can be automatically pulled down to remove the blockage of the calibration plate on the beam emitted by the laser body, so that the beam can be irradiated at the center of the beam quality analyzer body. This not only reduces manual intervention, eliminates the need for staff to manually adjust the position of the calibration plate, simplifies the operation process, improves the convenience of operation, saves time and effort, but also when adjusting the distance between the laser body and the beam quality analyzer body, the automatic descent of the calibration plate can be quickly completed without additional adjustment time, making the measurement process smoother and improving the measurement efficiency.

[0023] 3. By setting the beam detection obstruction removal mechanism, the cleaning plate can be driven to reciprocally clean the surface of the beam receiving part of the beam quality analyzer body. This can not only reduce the influence of dust, stains, and pollutants on the surface of the beam receiving part on the measurement, avoid the scattering or absorption of part of the beam by pollutants, resulting in measurement result deviation, thereby improving the measurement accuracy of the laser body beam, but also avoid the thermal stress of the optical components caused by pollutants, preventing component damage, and thus reducing the failure of the beam quality analyzer body caused by pollutants and extending the service life of the beam quality analyzer body.

[0024] 4. By setting the main pulley, belt, and driven pulley, when the lead screw rotates to drive the moving frame to move and adjust the position of the laser body, the cleaning plate can be driven to reciprocally clean the beam quality analyzer body at the same time. This design not only improves the operation efficiency and measurement accuracy, but also reduces the operation difficulty and cost, improves the long-term stability and application effect of the beam quality analyzer body. Moreover, during the process of adjusting the position of the laser body, the cleaning plate can clean the surface of the beam quality analyzer in real time to ensure that the measurement surface always remains clean, which helps to reduce the influence of pollutants on the measurement results and improve the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1Schematic diagram of the overall structure of the present invention;

[0027] Figure 2 The present invention Figure 1 Enlarged schematic diagram of area A in the present invention;

[0028] Figure 3 Schematic diagram of the connection structure between the pallet and the moving frame of the present invention;

[0029] Figure 4 The present invention Figure 3 Enlarged schematic diagram of area B in the present invention;

[0030] Figure 5 Schematic diagram of the connection structure between the linkage plate and the calibration plate of the present invention;

[0031] Figure 6 Schematic diagram of the connection structure between the push plate and the calibration plate of the present invention;

[0032] Figure 7 Schematic diagram of the connection structure between the cleaning plate and the rotating shaft of the present invention.

[0033] In the figure: 1, workbench; 2, support frame; 3, beam quality analyzer body; 4, pallet; 5, laser body; 6, mounting frame;

[0034] 701, moving frame; 702, lead screw; 703, drive motor; 704, telescopic column; 705, chute; 706, threaded rod; 707, knob; 708, sliding plate; 709, connecting plate; 710, sliding column; 711, push plate; 712, slider; 713, linkage plate; 714, frame; 715, lifting block; 716, counterweight; 717, calibration plate; 718, calibration hole; 719, connecting column;

[0035] 801, moving block; 802, fixed column; 803, cleaning plate; 804, main pulley; 805, belt; 806, driven pulley; 807, rotating shaft; 808, dialing plate; 809, dialing rod; 810, fixing plate; 811, vertical groove;

[0036] 9, horizontal groove. Specific embodiments

[0037] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0038] A laser quality detection device according to this embodiment, as Figure 1 - Figure 7As shown in the figure, it includes a workbench 1. A support frame 2 is fixedly connected to the upper end surface of the workbench 1. A beam quality analyzer body 3 is fixedly connected to the upper end of the support frame 2. A support plate 4 is arranged above the workbench 1. A laser body 5 is placed above the support plate 4. An installation frame 6 is fixedly connected to the upper end surface of the workbench 1. Horizontal grooves 9 are provided on both sides of the installation frame 6. The installation frame 6 is located at the beam quality analyzer body 3. It also includes a beam detection path calibration mechanism and a beam detection obstacle removal mechanism. The beam detection path calibration mechanism includes a moving frame 701. The moving frame 701 is slidably connected to the workbench 1. A lead screw 702 is threadedly connected through the moving frame 701. The lead screw 702 is rotatably connected to the side wall of the installation frame 6. A telescopic column 704 is fixedly connected to the upper end surface of the moving frame 701. The telescopic column 704 is fixedly connected to the lower end surface of the support plate 4. A calibration plate 717 is arranged above the installation frame 6. The calibration plate 717 is located between the beam quality analyzer body 3 and the laser body 5. A calibration hole 718 is provided at the center of the side of the calibration plate 717 close to the laser body 5. The calibration plate 717 and the beam quality analyzer body 3 are on the same horizontal line. The beam detection path calibration mechanism is used to adjust the irradiation path of the laser body 5.

[0039] In this embodiment, as Figure 3 shown, a chute 705 is provided on the upper end surface of the moving frame 701. A sliding plate 708 is slidably connected in the chute 705. A threaded rod 706 is threadedly connected through the sliding plate 708. The threaded rod 706 is rotatably connected through the moving frame 701. One end of the threaded rod 706 passing through the moving frame 701 is fixedly connected with a knob 707. Connecting plates 709 are rotatably connected on both sides of the threaded rod 706. The ends of the connecting plates 709 away from the sliding plate 708 are rotatably connected to the lower end surface of the support plate 4. When the knob 707 is rotated and the threaded rod 706 rotates, the threaded rod 706 can drive the sliding plate 708 to slide in the chute 705 provided on the upper end surface of the moving frame 701. During the sliding process of the sliding plate 708, through the connecting plates 709 connected at both ends, the support plate 4 can be pulled to descend synchronously or pushed to ascend.

[0040] In this embodiment, as Figure 5 shown, frames 714 are symmetrically and fixedly connected to the upper end of the installation frame 6. Lifting blocks 715 are vertically slidably connected in the frames 714. Connecting columns 719 are fixedly connected through the lifting blocks 715. The connecting columns 719 are fixedly connected to the calibration plate 717. When the lifting blocks 715 are driven to slide up and down in the frames 714, the calibration plate 717 can be driven to ascend and descend synchronously through the provided connecting columns 719, changing the height of the calibration plate 717.

[0041] In this embodiment, as Figure 4 and Figure 5As shown, the outer surface of the connecting column 719 is rotatably connected to the linkage plate 713, and the linkage plate 713 is rotatably connected to the slider 712 at the end away from the connecting column 719. The slider 712 is slidably connected in the transverse groove 9, and the connecting column 719 is fixedly connected to the counterweight block 716 at the end away from the calibration plate 717. When the connecting column 719 descends under the influence of the gravity of the counterweight block 716 itself, it will push the upper end of the linkage plate 713 to descend synchronously, so that the linkage plate 713 moves from an inclined state to a state close to the horizontal state, changing the inclined state of the linkage plate 713, so that the linkage plate 713 pushes the slider 712 to slide in the transverse groove 9.

[0042] In this embodiment, Figure 3 and Figure 4 As shown, a sliding column 710 is fixedly connected to the side wall of the slider 712, and the sliding columns 710 are all slidably connected to the mounting frame 6. A push plate 711 is fixedly connected between the two sliding columns 710 away from the end of the slider 712. The push plate 711 is in contact with the support plate 4 in the initial state. When the support plate 4 pushes the support plate 4 close to the mounting frame 6, the push plate 711 will push the sliding column 710 to slide into the mounting frame 6, and drive the slider 712 to slide in the horizontal groove 9 opened on the side wall of the sliding column 710.

[0043] In the prior art, due to the influence of the operator's experience and skill level, the laser beam may not be accurately aligned with the center of the beam quality analyzer, which not only leads to the inaccurate measurement of the beam quality parameters (such as M 2 factor, divergence angle, beam waist diameter, etc.) are inaccurate, M 2 The factor is an important indicator for measuring beam quality. Inaccurate alignment will lead to high or low measurement values, affecting the evaluation of laser performance. Inaccurate alignment will also lead to incomplete beam images captured by the beam mode analyzer, affecting the accuracy of mode analysis. The deviation of the beam from the center will lead to the loss of part of the mode image, affecting mode recognition and the evaluation of laser mode characteristics. Inaccurate alignment will require repeated measurements to ensure the accuracy of the measurement results, thereby reducing the detection efficiency of the laser beam. Compared with the existing technology, the height of the laser body 5 can be adjusted, and the vertical position of the light beam emitted by the laser body 5 can be directly adjusted to accurately align it with the calibration hole 718 on the calibration plate 717. It is observed whether the light beam corresponds to the calibration hole 718, which provides an intuitive alignment method. The operator can not only intuitively see the position of the light beam, which is convenient for quick adjustment, ensure the accurate alignment of the light beam, reduce repeated measurements caused by inaccurate alignment, but also ensure that the measured beam quality parameters are more accurate, avoiding M 2The situation where the measurement value is too high or too low due to inaccurate beam alignment of the factor occurs, which improves the performance evaluation of the laser body 5. And accurate alignment can ensure that the beam quality analyzer body 3 captures a complete beam image, avoiding the loss of a part of the mode image, which helps to perform mode analysis and identification more accurately.

[0044] On other levels, this embodiment also provides a beam detection obstacle removal mechanism for cleaning dust particles on the beam quality analyzer body 3, as Figure 1 , Figure 2 and Figure 7 shown. The beam detection obstacle removal mechanism includes a moving block 801. The moving block 801 is slidably connected to the upper end surface of the workbench 1. A fixed column 802 is fixedly connected to the upper end of the moving block 801. A cleaning plate 803 is fixedly connected to the upper end of the fixed column 802. The cleaning plate 803 is in contact with the beam quality analyzer body 3.

[0045] In this embodiment, as Figure 7 shown, a fixing plate 810 is fixedly connected to the outer surface of the fixed column 802. A vertical groove 811 is opened on one side of the fixing plate 810 close to the mounting bracket 6. A dial rod 809 is slidably connected in the vertical groove 811. A dial plate 808 is fixedly connected to the end of the dial rod 809 away from the fixing plate 810. A rotating shaft 807 is fixedly connected to the side of the dial plate 808 away from the dial rod 809. The rotating shaft 807 is rotatably connected through the mounting bracket 6. When the rotating shaft 807 rotates on the mounting bracket 6, the provided dial plate 808 can drive the dial rod 809 to rotate around the rotating shaft 807, and drive the dial rod 809 to reciprocate in the vertical groove 811 opened on the fixing plate 810, so that the dial rod 809 drives the fixing plate 810 through the vertical groove 811 to drive the fixed column 802 to perform reciprocating motion.

[0046] In this embodiment, as Figure 1 and Figure 2 shown, a driven pulley 806 is fixedly connected to the end of the rotating shaft 807 away from the dial plate 808. A belt 805 is sleeved on the outer surface of the driven pulley 806. A main pulley 804 is arranged on the side of the belt 805 away from the driven pulley 806. The main pulley 804 is fixedly connected to the lead screw 702. A driving motor 703 is fixedly connected to the end of the lead screw 702 away from the mounting bracket 6. The driving motor 703 is fixedly connected to the side wall of the workbench 1. When the driving motor 703 is turned on to drive the lead screw 702 to rotate, through the transmission connection between the main pulley 804, the belt 805 and the driven pulley 806, the rotating shaft 807 can be driven to rotate synchronously.

[0047] Compared with the prior art, it can drive the cleaning plate 803 to reciprocally clean the surface of the receiving beam of the beam quality analyzer body 3. This can not only reduce the influence of dust, stains and pollutants on the surface of the receiving beam on the measurement, avoid the scattering or absorption of part of the beam by the pollutants, resulting in deviation of the measurement results, thereby improving the measurement accuracy of the beam of the laser body 5, but also avoid the thermal stress of the optical components caused by the pollutants, prevent the occurrence of component damage, thereby reducing the failure of the beam quality analyzer body 3 caused by pollutants and extending the service life of the beam quality analyzer body 3.

[0048] The working process and principle involved in the overall content of the above embodiments are as follows:

[0049] During the process of the staff detecting the beam of the laser body 5, first place the laser body 5 on the upper end surface of the pallet 4, and then fix the laser body 5 on the upper end surface of the pallet 4 by means of the clamping mechanism in the prior art. After the laser body 5 is fixed, the staff can rotate the knob 707 to drive the threaded rod 706 to rotate. Through the threaded connection between the threaded rod 706 and the sliding plate 708, the sliding plate 708 can be driven to slide in the chute 705 opened on the upper end surface of the moving frame 701, away from the telescopic column 704 connected to the moving frame 701. As the sliding plate 708 moves, since both sides of the sliding plate 708 are rotatably connected with connecting plates 709, and the ends of the connecting plates 709 away from the sliding plate 708 are rotatably connected to the lower end surface of the pallet 4, during the horizontal movement of the sliding plate 708, the lower ends of the connecting plates 709 will be pulled to move synchronously, causing the connecting plates 709 to move from an inclined state to a state approaching horizontal, changing the state of the connecting plates 709. As the state of the connecting plates 709 changes, the connecting plates 709 will pull the pallet 4 to squeeze the telescopic column 704, pushing the telescopic column 704 to contract. At the same time, the pallet 4 drives the laser body 5 connected to its upper end to vertically descend, so that the beam emitted by the laser body 5 can irradiate into the calibration hole 718 opened on the calibration plate 717, and observe whether the beam corresponds to the calibration hole 718, providing an intuitive alignment method. The operator can not only intuitively see the position of the beam, which is convenient for quick adjustment to ensure accurate beam alignment, reduce repeated measurements caused by inaccurate alignment, but also ensure that the measured beam quality parameters are more accurate, avoiding the situation where the M 2 factor has a higher or lower measured value due to inaccurate beam alignment, improving the performance evaluation of the laser body ⑤, and accurate alignment can ensure that the beam quality analyzer body 3 captures a complete beam image, avoiding the loss of a part of the mode image, which is helpful for more accurate mode analysis and recognition;

[0050] After the light beam emitted by the laser body 5 is aligned with the calibration hole 718, the operator can turn on the drive motor 703 to drive the lead screw 702 to rotate on the side wall of the mounting frame 6. Since the lead screw 702 is threadedly connected through the moving frame 701 and the moving frame 701 is horizontally slidably connected to the upper end surface of the workbench 1, during the rotation of the lead screw 702, through the threaded connection between the lead screw 702 and the moving frame 701, the moving frame 701 can be driven to slide horizontally on the upper end surface of the workbench 1, so that the moving frame 701 drives the support plate 4 to move synchronously through the telescopic column 704, and the laser body 5 placed on the upper end surface of the support plate 4 is moved away from the beam quality analyzer body 3, adjusting the distance between the laser body 5 and the beam quality analyzer body 3 to ensure accurate measurement results under different measurement conditions. Different laser bodies 5 have different wavelength and power characteristics. By adjusting the distance, not only can the measurement conditions be optimized to ensure the accuracy of the measurement results, adapt to various types of laser bodies 5, and improve the overall versatility, but also in beam quality analysis, it is necessary to measure beam parameters at different distances (such as near-field and far-field measurements), and the measurement mode can be flexibly switched to meet various test requirements;

[0051] During the process of the support plate 4 driving the laser body 5 away from the beam quality analyzer body 3, the support plate 4 will also be separated from the push plate 711 provided on the side wall of the mounting frame 6. After the extrusion force of the support plate 4 on the push plate 711 disappears, since the connecting columns 719 are symmetrically and fixedly connected to the outer surface of the calibration plate 717, the connecting columns 719 penetrate and are connected to the lifting blocks 715, the lifting blocks 715 are slidably connected in the frame 714, and a counterweight 716 is connected to one end of the connecting column 719 away from the calibration plate 717, so affected by the gravity of the counterweight 716, the connecting column 719 will be pulled to drive the calibration plate 717 to descend, so that the lifting blocks 715 descend synchronously in the frame 714, removing the blockage of the calibration plate 717 on the light beam emitted by the laser body 5, so that the light beam can be irradiated at the center of the beam quality analyzer body 3. This not only reduces manual intervention, the operator does not need to manually adjust the position of the calibration plate 717, simplifies the operation process, improves the operation convenience, saves time and energy, but also when adjusting the distance between the laser body 5 and the beam quality analyzer body 3, the automatic descent of the calibration plate 717 can be quickly completed without additional adjustment time, making the measurement process smoother and improving the measurement efficiency;

[0052] During the process of the connecting column 719 pulling the lifting block 715 downwards, since the linkage plate 713 is connected to the outer surface of the connecting column 719, and the ends of the linkage plate 713 away from the connecting column 719 are rotatably connected to the slider 712, as the connecting column 719 descends, the arranged linkage plate 713 will push the slider 712 to horizontally move synchronously in the horizontal groove 9 opened on the side wall of the mounting frame 6, and push the sliding column 710 connected to the side wall of the slider 712 to slide out from the inside of the mounting frame 6. At the same time, it drives the push plate 711 connected to the sliding column 710 to move away from the mounting frame 6, so that when the subsequent support plate 4 approaches the mounting frame 6, a thrust can be given to the push plate 711 to push the push plate 711 closer to the mounting frame 6. Through the sliding column 710, the slider 712, the linkage plate 713, the connecting column 719 and the lifting block 715, the calibration plate 717 is driven to rise again between the beam quality analyzer body 3 and the laser body 5, facilitating the staff to adjust the position of the beam irradiated by the subsequent laser body 5;

[0053] During the process of the lead screw 702 rotating to drive the moving frame 701 to move horizontally, since the main pulley 804 is connected to the outer surface of the lead screw 702, a belt 805 is sleeved between the main pulley 804 and the driven pulley 806, and the driven pulley 806 is fixedly connected to the rotating shaft 807, as the lead screw 702 rotates, through the transmission connection between the main pulley 804, the belt 805 and the driven pulley 806, the rotating shaft 807 can be driven to rotate synchronously on the mounting frame 6, and the dial plate 808 connected to the rotating shaft 807 is driven to move synchronously, so that the dial rod 809 connected to the dial plate 808 moves synchronously with the rotating shaft 807 as the center. During the movement of the dial rod 809, the dial rod 809 will slide up and down synchronously in the vertical groove 811 opened on the side wall of the fixing plate 810, and drive the fixing plate 810 to drive the fixed column 802 to move through the vertical groove 811, so that the moving block 801 connected to the lower end of the fixed column 802 moves horizontally back and forth on the upper end surface of the workbench 1. At the same time, it drives the cleaning plate 803 connected to the upper end of the fixed column 802 to reciprocate and move close to the surface of the beam receiving part of the beam quality analyzer body 3, and reciprocally clean the surface of the beam receiving part of the beam quality analyzer body 3. This can not only reduce the influence of dust, stains and pollutants on the surface of the beam receiving part on the measurement, avoid the pollutants scattering or absorbing part of the beam, resulting in measurement result deviation, thereby improving the measurement accuracy of the laser beam of the laser body 5, but also avoid the thermal stress of the optical elements caused by the pollutants, preventing the occurrence of element damage, thereby reducing the failure of the beam quality analyzer body 3 caused by the pollutants and extending the service life of the beam quality analyzer body 3.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A laser quality detection device, comprising a workbench (1), the upper end surface of the workbench (1) is fixedly connected with a support frame (2), the upper end of the support frame (2) is fixedly connected with a beam quality analyzer body (3), a support plate (4) is arranged above the workbench (1), a laser body (5) is placed above the support plate (4), the upper end surface of the workbench (1) is fixedly connected with a mounting frame (6), transverse grooves (9) are formed on both sides of the mounting frame (6), and the mounting frame (6) is located at the beam quality analyzer body (3), characterized in that, It also includes a beam detection path calibration mechanism and a beam detection obstacle removal mechanism; The beam detection path calibration mechanism includes a moving frame (701) which is slidably connected to the workbench (1). A lead screw (702) is threadedly connected through the moving frame (701), and the lead screw (702) is rotatably connected to the side wall of the mounting frame (6). A telescopic column (704) is fixedly connected to the upper end surface of the moving frame (701), and the telescopic column (704) is fixedly connected to the lower end surface of the support plate (4). A calibration plate (717) is arranged above the mounting frame (6), and the calibration plate (717) is located between the beam quality analyzer body (3) and the laser body (5). A calibration hole (718) is opened at the center of the side of the calibration plate (717) close to the laser body (5). The calibration plate (717) and the beam quality analyzer body (3) are on the same horizontal line. The beam detection path calibration mechanism is used to adjust the irradiation path of the laser body (5); The beam detection obstacle removal mechanism is used to clean the dust particles on the beam quality analyzer body (3).

2. The laser quality detection device according to claim 1, characterized in that, A chute (705) is opened on the upper end surface of the moving frame (701), and a slide plate (708) is slidably connected in the chute (705). A threaded rod (706) is threadedly connected through the slide plate (708), and the threaded rod (706) is rotatably connected through the moving frame (701). One end of the threaded rod (706) passing through the moving frame (701) is fixedly connected with a knob (707). Connecting plates (709) are rotatably connected on both sides of the threaded rod (706), and the ends of the connecting plates (709) away from the slide plate (708) are rotatably connected to the lower end surface of the support plate (4).

3. A laser quality detection device according to claim 2, characterized in that, Frames (714) are symmetrically and fixedly connected to the upper end of the mounting frame (6), and lifting blocks (715) are vertically slidably connected in the frames (714). Connecting columns (719) are fixedly connected through the lifting blocks (715), and the connecting columns (719) are fixedly connected to the calibration plate (717).

4. A laser quality detection device according to claim 3, characterized in that, Linking plates (713) are rotatably connected to the outer surfaces of the connecting columns (719). Sliders (712) are rotatably connected to the ends of the linking plates (713) away from the connecting columns (719), and the sliders (712) are slidably connected in the transverse grooves (9). Counterweight blocks (716) are fixedly connected to the ends of the connecting columns (719) away from the calibration plate (717).

5. The laser quality detection device according to claim 4, wherein, Sliding columns (710) are fixedly connected to the side walls of the sliders (712), and the sliding columns (710) are slidably connected through the mounting frame (6). A push plate (711) is fixedly connected between the ends of the two sliding columns (710) away from the sliders (712), and the push plate (711) is in contact with the support plate (4) in the initial state.

6. The laser quality detection device according to claim 1, characterized in that The beam detection obstacle removal mechanism includes a moving block (801), the moving block (801) is slidably connected to the upper end surface of the workbench (1), a fixed column (802) is fixedly connected to the upper end of the moving block (801), a cleaning plate (803) is fixedly connected to the upper end of the fixed column (802), and the cleaning plate (803) is in contact with the beam quality analyzer body (3).

7. The laser quality detection device according to claim 6, wherein A fixed plate (810) is fixedly connected to the outer surface of the fixed column (802). A vertical groove (811) is formed on one side of the fixed plate (810) close to the mounting bracket (6). A dial rod (809) is slidably connected in the vertical groove (811). A dial plate (808) is fixedly connected to one end of the dial rod (809) away from the fixed plate (810). A rotating shaft (807) is fixedly connected to one side of the dial plate (808) away from the dial rod (809). The rotating shaft (807) passes through and is rotatably connected to the mounting bracket (6).

8. The laser quality detection device according to claim 7, characterized in that, A driven pulley (806) is fixedly connected to one end of the rotating shaft (807) away from the dial plate (808). A belt (805) is sleeved on the outer surface of the driven pulley (806). A main pulley (804) is arranged on one side of the belt (805) away from the driven pulley (806). The main pulley (804) is fixedly connected to a lead screw (702). A drive motor (703) is fixedly connected to one end of the lead screw (702) away from the mounting bracket (6). The drive motor (703) is fixedly connected to the side wall of the workbench (1).

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