A beam quality detection device supporting long-time work of high-power laser

Abstract

The utility model discloses a kind of light beam quality detection equipment supporting high-power laser long-time work, including super-clean workstation and energy-absorbing warehouse support, multiple dimensions adjusting positioning table is equipped on super-clean workstation, laser cutting head is equipped on multiple dimensions adjusting positioning table, high-power laser light beam quality measuring instrument is equipped on super-clean workstation, light-receiving water-cooled energy-absorbing warehouse is equipped on energy-absorbing warehouse support, industrial temperature measuring instrument is equipped on light-receiving water-cooled energy-absorbing warehouse.The utility model is provided with the energy-absorbing water-cooled energy-absorbing warehouse of high temperature and high heat generated by laser light beam can be absorbed and carried away, so as to reach the light beam quality detection of high-power laser long-time work, improve the problem such as insufficient detection data and low detection efficiency.Meanwhile the relative position of adjusting positioning laser cutting head and high-power laser light beam quality measuring instrument and the deflection angle of laser cutting head can be adjusted, the red light beam path and focal point emitted by laser cutting head are conveniently set in the detection area in measuring instrument, convenient to use, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of laser beam quality testing for laser cutting heads, and specifically to a beam quality testing device that supports long-term operation of high-power lasers. Background Technology

[0002] Current laser beam quality inspection equipment for laser cutting heads suffers from problems such as low detection efficiency, insufficient data acquisition, and inconvenience due to the high temperature and heat generated during laser beam acquisition and inspection. This is because the energy generated cannot be absorbed and carried away in time, resulting in short single-time inspection time and long inspection intervals for high-power laser beams. Consequently, it cannot meet the requirements for long-term single-time inspection of the quality of high-power laser beams in laser cutting heads.

[0003] Traditional laser cutting head beam quality inspection cannot perform high-power laser beam quality inspection for extended periods. It cannot detect the thermal effects caused by the long-term transmission and focusing of high-power lasers in the laser, fiber, and laser cutting head, resulting in insufficient inspection data and low inspection efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a beam quality testing device that is simple in structure and easy to operate, which supports long-term operation of high-power lasers, in order to solve the above problems. It can perform long-term beam quality testing on high-power laser beams emitted by laser cutting heads, provide long-term testing data, and improve testing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a beam quality testing device that supports long-term operation of high-power lasers, comprising a clean bench and an energy absorption chamber support. A multi-dimensional adjustment and positioning platform is provided on the operating table inside the clean bench, and a laser cutting head is provided on the multi-dimensional adjustment and positioning platform. A high-power laser beam quality measuring instrument is provided at one end of the clean bench near the energy absorption chamber support. A light-absorbing water-cooled energy absorption chamber is provided on the energy absorption chamber support, and an industrial temperature measuring instrument is provided on the light-absorbing water-cooled energy absorption chamber. Both the light-absorbing water-cooled energy absorption chamber and the industrial temperature measuring instrument are connected to a liquid intelligent quantitative control instrument.

[0006] A further improvement of this utility model is that the ultra-clean workbench is equipped with a protective door panel and a protective side panel. Before and after the inspection, the protective door panel is in the open state for operation. During the inspection, the protective door panel is in the closed state. The protective side panel has an opening design to allow the laser beam to pass through. During the inspection, the laser beam can pass through the hole and enter the light-absorbing water-cooled energy-absorbing chamber and be absorbed.

[0007] A further improvement of this utility model is that: a positioning platform base plate is provided at the bottom of the multi-dimensional adjustment positioning platform, and positioning platform base plates are arranged in sequence on the positioning platform base plate. A guide rail is provided on the positioning platform base plate, and a connecting plate is provided on the guide rail via a slider. The connecting plate is fixed by positioning bolts. A three-dimensional lifting and translation platform is provided on the connecting plate, and an arc tilt angle positioning platform is provided on the three-dimensional lifting and translation platform. A laser cutting head connecting plate is provided on the arc tilt angle positioning platform. A high-power laser beam quality measuring instrument connecting plate is fixed at one end of the positioning platform base plate.

[0008] A further improvement of this utility model is that the light-absorbing water-cooled energy-absorbing chamber is assembled from a water-cooled energy-absorbing bottom plate, a water-cooled energy-absorbing front plate, a water-cooled energy-absorbing right side plate, a water-cooled energy-absorbing left side plate, and a water-cooled energy-absorbing top side plate to form a hollow cavity with an internal slope. The water-cooled energy-absorbing front plate is provided with an opening for the laser beam to pass through.

[0009] A further improvement of this utility model is that the surface of the light-collecting water-cooled energy-absorbing chamber is coated with a black oxide coating.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This invention utilizes a water-cooled energy-absorbing chamber that absorbs and removes the high-temperature, high-heat energy generated by the laser beam, thereby enabling beam quality testing of high-power lasers operating for extended periods and improving issues such as insufficient test data and low testing efficiency. Simultaneously, the relative position of the positioning laser cutting head and the high-power laser beam quality measuring instrument, as well as the deflection angle of the laser cutting head, can be adjusted to easily position the path and focus of the red light beam emitted by the laser cutting head within the testing area of ​​the high-power laser beam quality measuring instrument. This design is convenient to use and highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of a clean bench.

[0014] Figure 3 This is a schematic diagram of the structure of the multi-dimensional adjustment positioning stage.

[0015] Figure 4 This is a schematic diagram of the structure of the light-cooled energy-absorbing chamber.

[0016] Figure 5 This is a simplified diagram illustrating the beam path during detection.

[0017] Figure 6 A simplified schematic diagram of the internal water circuit design of a water-cooled plate.

[0018] The attached diagram is labeled as follows: 1. Clean bench; 101. Protective door panel; 102. Protective side panel; 2. Laser cutting head; 3. High-power laser beam quality measuring instrument; 4. Multi-dimensional adjustable positioning platform; 401. Positioning platform base plate; 402. Guide rail; 403. Slider; 404. Connecting plate; 405. Positioning bolt; 406. Three-dimensional lifting and translation platform; 407. Arc tilting angle positioning platform; 408. Laser cutting head connecting plate; 409. High-power laser beam quality measuring instrument connecting plate; 5. Light-absorbing water-cooled energy-absorbing chamber; 501. Water-cooled energy-absorbing base plate; 502. Water-cooled energy-absorbing front plate; 503. Water-cooled energy-absorbing right side plate; 504. Water-cooled energy-absorbing left side plate; 505. Water-cooled energy-absorbing top side plate; 6. Industrial thermometer; 7. Liquid intelligent quantitative controller; 8. Energy-absorbing chamber support. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] As attached Figures 1 to 4 The device shown is a beam quality testing device that supports long-term operation of high-power lasers. It includes a clean bench 1 and an energy absorption chamber support 8. The operating table inside the clean bench 1 is equipped with a multi-dimensional adjustment and positioning platform 4. A laser cutting head 2 is installed on the multi-dimensional adjustment and positioning platform 4. A high-power laser beam quality measuring instrument 3 is installed at one end of the clean bench 1 near the energy absorption chamber support 8. A light-absorbing water-cooled energy absorption chamber 5 is installed on the energy absorption chamber support 8. An industrial temperature measuring instrument 6 is installed in the light-absorbing water-cooled energy absorption chamber 5. Both the light-absorbing water-cooled energy absorption chamber 5 and the industrial temperature measuring instrument 6 are connected to a liquid intelligent quantitative controller 7.

[0021] The clean bench 1 is equipped with a protective door 101 and a protective side panel 102 to prevent laser beam leakage during testing. Before and after testing, the protective door 101 is open for operation. During testing, the protective door 101 is closed to prevent laser beam leakage. The protective side panel 102 has an opening for the laser beam to pass through, allowing it to enter and be absorbed in the light-cooling energy absorption chamber 5.

[0022] The multi-dimensional adjustment positioning platform 4 has a positioning platform base plate 401 at its bottom. Positioning platform base plates 401 are arranged sequentially on the positioning platform base plate 401. The positioning platform base plate 401 has a guide rail 402. The guide rail 402 has a connecting plate 404 arranged on the guide rail 402 via a slider 403. The connecting plate 404 is fixed by a positioning bolt 405. The connecting plate 404 has a three-dimensional lifting and translation platform 406. The three-dimensional lifting and translation platform 406 has an arc tilt angle positioning platform 407. The arc tilt angle positioning platform 407 has a laser cutting head connecting plate 408. The laser cutting head 2 is arranged on the laser cutting head connecting plate 408. A high-power laser beam quality measuring instrument connecting plate 409 is fixed at one end of the positioning platform base plate 401. The high-power laser beam quality measuring instrument 3 is arranged on the high-power laser beam quality measuring instrument connecting plate 409. The function of the multi-dimensional adjustment positioning stage 4 is to adjust the X, Y, and Z axial displacement of the laser cutting head beam and its lateral and longitudinal deflection angles. It can also position the relative position of the laser cutting head and the high-power laser beam quality measuring instrument 3, as well as the deflection angle of the laser cutting head. Specifically, before testing, the system controls the laser cutting head to emit red light (visible light with a wavelength of 650nm). The red light simulates the projection path and focus of the laser beam. Based on the red light beam path and focus, the operator operates the multi-dimensional adjustment positioning stage 4 to set the path and focus of the red light beam emitted by the laser cutting head within the testing area of ​​the high-power laser beam quality measuring instrument. This avoids abnormal testing due to alignment and angle deviations when testing high-power lasers. Unlike high-power laser beams (such as 1064nm fiber lasers), red light has extremely low energy and will not damage the testing equipment.

[0023] The light-absorbing water-cooled energy-absorbing chamber 5 is assembled from a water-cooled energy-absorbing base plate 501, a water-cooled energy-absorbing front plate 502, a water-cooled energy-absorbing right side plate 503, a water-cooled energy-absorbing left side plate 504, and a water-cooled energy-absorbing top side plate 505 to form a hollow cavity with an internal slope. The internal reflected light angle is designed as follows: Figure 5 As shown. The surface of the light-collecting water-cooled energy-absorbing chamber 5 is coated with a black oxide coating, which can effectively absorb the heat generated by the laser beam of the laser cutting head. The light-collecting water-cooled energy-absorbing chamber 5 is made of 6061 aluminum alloy with high thermal conductivity and high temperature resistance, which can effectively conduct the absorbed heat. The water-cooled energy-absorbing front plate 502 is designed with an opening for the laser beam to pass through. During detection, the laser beam enters the cavity of the light-collecting water-cooled energy-absorbing chamber 5 through the opening of the water-cooled energy-absorbing front plate 502, and is reflected multiple times inside the cavity of the light-collecting water-cooled energy-absorbing chamber 5 without overflowing, and is finally completely absorbed by the light-collecting water-cooled energy-absorbing chamber 5. Its main structural components have an internal heat dissipation water pipe structure design with water inlet and outlet (see...). Figure 6 The energy absorption chamber 5 is equipped with a feed of cold water or coolant to absorb energy and cool it down.

[0024] The industrial temperature measuring instrument 6 can monitor the real-time temperature of the light-absorbing water-cooled energy-absorbing chamber 5.

[0025] The intelligent liquid quantitative controller 7 can intelligently adjust the water supply rate and volume of the light-collecting water-cooled energy-absorbing chamber 5 based on the real-time temperature status of the light-collecting water-cooled energy-absorbing chamber 5 fed back by the industrial temperature measuring instrument 6, so as to achieve precise temperature control.

Claims

1. A beam quality testing device supporting long-term operation of high-power lasers, comprising a clean bench (1) and an energy absorption chamber support (8), characterized in that: The clean bench (1) is equipped with a multi-dimensional adjustment and positioning platform (4) on the operating table surface. The multi-dimensional adjustment and positioning platform (4) is equipped with a laser cutting head (2). The clean bench (1) is equipped with a high-power laser beam quality measuring instrument (3) at one end near the energy absorption chamber support (8). The energy absorption chamber support (8) is equipped with a light-collecting water-cooled energy absorption chamber (5). The light-collecting water-cooled energy absorption chamber (5) is equipped with an industrial temperature measuring instrument (6). The light-collecting water-cooled energy absorption chamber (5) and the industrial temperature measuring instrument (6) are both connected to a liquid intelligent quantitative control instrument (7).

2. The beam quality testing device for supporting long-term operation of high-power lasers according to claim 1, characterized in that: The ultra-clean workbench (1) is equipped with a protective door panel (101) and a protective side panel (102). Before and after the test, the protective door panel (101) is in the open state for operation. During the test, the protective door panel (101) is in the closed state. The protective side panel (102) has an opening design to allow the laser beam to pass through. During the test, the laser beam can pass through the hole and enter the light-absorbing water-cooled energy-absorbing chamber (5) and be absorbed.

3. The beam quality testing device for supporting long-term operation of high-power lasers according to claim 1, characterized in that: The multi-dimensional adjustment positioning platform (4) is provided with a positioning platform base plate (401) at the bottom. Positioning platform base plates (401) are arranged in sequence on the positioning platform base plate (401). A guide rail (402) is provided on the positioning platform base plate (401). A connecting plate (404) is provided on the guide rail (402) via a slider (403). The connecting plate (404) is fixed by a positioning bolt (405). A three-dimensional lifting and translation platform (406) is provided on the connecting plate (404). An arc tilt angle platform (407) is provided on the three-dimensional lifting and translation platform (406). A laser cutting head connecting plate (408) is provided on the arc tilt angle platform (407). A high-power laser beam quality measuring instrument connecting plate (409) is fixed at one end of the positioning platform base plate (401).

4. The beam quality testing device for supporting long-term operation of high-power lasers according to claim 1, characterized in that: The light-absorbing water-cooled energy-absorbing chamber (5) is assembled from a water-cooled energy-absorbing bottom plate (501), a water-cooled energy-absorbing front plate (502), a water-cooled energy-absorbing right side plate (503), a water-cooled energy-absorbing left side plate (504), and a water-cooled energy-absorbing top side plate (505) to form a hollow cavity with an internal slope. The water-cooled energy-absorbing front plate (502) is provided with an opening for the laser beam to pass through.

5. The beam quality testing device for supporting long-term operation of high-power lasers according to claim 1, characterized in that: The surface of the light-collecting water-cooled energy-absorbing chamber (5) is coated with a black oxide coating.

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