High-power galvanometer on-load aging test device

Abstract

The utility model discloses an on-load aging test device for a high-power galvanometer, which is used for detecting and feeding back the performance, safety and reliability of the high-power galvanometer in long-time laser on-load work. The water cooling machine is positioned below the water tank with the load; and the cold and hot water exchange unit is respectively communicated with the loading water tank and the cooling-water machine. The high-power galvanometer on-load aging test device designed by the utility model is a water-cooled laser focal drift detection device, and the device can detect and feed back the performance, safety and reliability of the high-power galvanometer in long-time laser on-load work through a corresponding test method; high-performance and high-reliability products are screened out, and the commercial value and market positioning of the products are improved; through the testing device, manufacturers and users can more comprehensively understand the performance of the equipment under extreme conditions so as to make more intelligent decisions.

Description

Technical Field

[0001] The utility model relates to a testing device, in particular to a high-power galvanometer on-load aging testing device. Background Art

[0002] The high-power welding galvanometer laser on-load aging testing device is an important testing device, which is of great significance for evaluating the performance stability and reliability of high-power welding galvanometer products.

[0003] With the product replacement, the existing testing device has backward structure and functions, and can no longer accurately screen out high-power welding galvanometer products with high performance and high reliability, cannot comprehensively understand the performance of the device under extreme conditions, cannot meet the needs of consumers, and ultimately affects the market efficiency. Therefore, a high-power galvanometer on-load aging testing device is designed to solve the above problems.

[0004] It should be noted that the above introduction of the technical background is only for the convenience of clearly and completely explaining the technical solution of the present utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the present utility model. Summary of the Utility Model

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present utility model is to provide a high-power galvanometer on-load aging testing device.

[0006] To achieve the above purpose and other related purposes, the present utility model provides a high-power galvanometer on-load aging testing device for detecting and feedbacking the performance and safety reliability of a high-power galvanometer during long-term laser on-load operation, including:

[0007] An on-load water tank;

[0008] A chiller, which is located below the on-load water tank; wherein, a high-power chiller is adopted.

[0009] A cold and hot water exchange unit, which is respectively connected and arranged with the on-load water tank and the chiller.

[0010] In this solution, a constant temperature, constant flow and constant pressure cooling water is provided by the chiller; the exchange of cold water and hot water in the on-load water tank is realized through the cold and hot water exchange unit; the long-term laser on-load working performance test of the high-power galvanometer is realized through the on-load water tank.

[0011] Further, the cold and hot water exchange unit includes:

[0012] A self-priming booster pump;

[0013] The first return water pipe; one end of the first return water pipe is connected to the hot return water port of the chiller, and the other end is connected to the self-priming booster pump;

[0014] The second return water pipe; one end of the second return water pipe is connected to the water outlet of the water tank of the load-bearing water tank, and the other end is connected to the self-priming booster pump;

[0015] The cold water supply pipe; one end of the cold water supply pipe is connected to the cold water outlet of the chiller, and the other end is respectively connected to the first cold water inlet pipe and the second cold water inlet pipe. The first cold water inlet pipe is connected to the first water tank inlet of the load-bearing water tank, and the second cold water inlet pipe is connected to the second water tank inlet of the load-bearing water tank;

[0016] The check valve; the check valve is arranged on the cold water supply pipe;

[0017] The water-passing solenoid valve; the water-passing solenoid valve is arranged on the second cold water inlet pipe.

[0018] In this solution, the cold water outlet of the chiller is connected to the cold water supply pipe, the check valve is installed on the cold water supply pipe, and after passing through the check valve, the cold water supply pipe is divided into two. One way is connected to the first cold water inlet pipe and directly leads to the first water tank inlet, and the other way first passes through the water-passing solenoid valve and then is connected to the second cold water inlet pipe, and then is connected to the second water tank inlet. The water outlet of the water tank is connected to the second return water pipe. The second return water pipe first passes through the self-priming booster pump and then is connected to the hot return water port of the chiller through the first return water pipe.

[0019] Further, the first water tank inlet and the second water tank inlet are located on the same side of the load-bearing water tank and are on the same horizontal plane, and the water outlet of the water tank is located above the second water tank inlet. There are two first water tank inlets and two second water tank inlets, and the two second water tank inlets are both located between the two first water tank inlets. In this solution, setting the second water tank inlet passing through the water-passing solenoid valve between the two first water tank inlets is convenient for controlling the water inflow.

[0020] Further, the load-bearing water tank includes:

[0021] The graphite plate, the graphite plate is located inside the load-bearing water tank; the graphite plate has excellent laser absorption effect, can prevent the high-power laser beam from escaping, improve the safety of the test, and the graphite plate is high-temperature resistant, corrosion-resistant, and has excellent heat conduction effect, which is the best laser-bearing material.

[0022] The low-level monitoring switch, the low-level monitoring switch is arranged inside the load-bearing water tank, and its upper end is fixed on the load-bearing water tank through a low-level fine-tuning nut;

[0023] High-level monitoring switch, the high-level monitoring switch is arranged in the load-carrying water tank, and its upper end is fixed on the load-carrying water tank through a high-level fine-tuning nut;

[0024] First relay, the first relay is fixed on the outside of the load-carrying water tank;

[0025] Second relay, the second relay is fixed on the outside of the load-carrying water tank.

[0026] Furthermore, the graphite plate is located on the right side near the middle of the load-carrying water tank, and the height of the graphite plate is between the water outlet of the water tank and the water inlet of the second water tank. In this solution, the graphite plate is arranged on the right side near the middle of the load-carrying water tank and between the water outlet of the water tank and the water inlet of the second water tank. Being close to the water inlet can contact the newly incoming cold water earlier and improve the heat exchange efficiency.

[0027] Furthermore, both the low-level monitoring switch and the high-level monitoring switch include:

[0028] Hollow tube, the hollow tube is vertically arranged in the load-carrying water tank;

[0029] Waterproof plug, the waterproof plug is clamped at the bottom of the hollow tube;

[0030] Reed switch, the reed switch is inserted inside the hollow tube;

[0031] First limiter, the limiter is sleeved on the hollow tube and is arranged higher than the upper end of the reed switch;

[0032] Second limiter, the limiter is sleeved on the hollow tube and is flush with the lower end of the reed switch;

[0033] Annular magnetic float, the annular magnetic float is sleeved on the hollow tube and is located between the first limiter and the second limiter;

[0034] The reed switch of the low-level monitoring switch is arranged near the bottom of its corresponding hollow tube, and the reed switch of the high-level monitoring switch is arranged near the top of its corresponding hollow tube.

[0035] The hollow tube is made of transparent material. In this solution, the material of the hollow tube includes but is not limited to transparent PC material. The transparent material is convenient for observing the position of the internal reed switch.

[0036] Further, a curved water guide sheet is arranged in the load-carrying water tank. The curved water guide sheet is located above the graphite plate. There are two curved water guide sheets, which are detachably inserted on both sides of the load-carrying water tank respectively, and the curved water guide sheets are bent towards the side. In this solution, the setting of the curved water guide sheet helps to generate a change in the flow velocity above the graphite plate; the change in the flow velocity helps to improve the heat exchange efficiency of the graphite plate, increasing the flow velocity: when the water flow passes through the waist opening (the place where the distance between the two curved water guide sheets is the closest), due to the reduction of the cross-sectional area of the flow-through section, according to the principle of conservation of flow (that is, the volume of the fluid passing through a certain section per unit time remains unchanged), the flow velocity will increase accordingly. The change in the flow direction can also increase the distribution area of the water flow, adjusting the flow direction: when the water flow passes through the waist opening, the water flow may form a complex flow field, further generating lateral diffusion, that is, the water flow diffuses laterally on both sides after passing through the waist opening.

[0037] Further, an arc-shaped water guide sheet is also arranged in the load-carrying water tank. The arc-shaped water guide sheet is bent downward and is located above the graphite plate. The low-level monitoring switch and the high-level monitoring switch are located above the arc-shaped water guide sheet. In this solution, the arc-shaped water guide sheet structure optimizes the direction of the water flow circulation, enabling the water flow to be evenly distributed and pass through the upper surface of the graphite plate. The arc-shaped water guide sheet structure also helps to stabilize the disturbance of the water flow. The low-level monitoring switch and the high-level monitoring switch are located above this structure, which can reduce the influence of the liquid level fluctuation on the monitoring switch and false triggering.

[0038] The present utility model also provides a high-power galvanometer load-carrying aging test method, which is tested by using a high-power galvanometer load-carrying aging test device. The test method includes:

[0039] Turn on the chiller, and let the cold water in the chiller flow from the cold water outlet to the cold water supply pipe. After passing through the check valve on the cold water supply pipe, it is divided into two paths. One path is sent to the first water tank water inlet through the first cold water inlet pipe, and the other path first passes through the water passing solenoid valve and then enters the second cold water inlet pipe, and then is sent to the second water tank water inlet. The hot water in the load-carrying water tank flows into the second return pipe through the water tank water outlet. The second return pipe first passes through the self-priming booster pump and then is sent to the hot water return port of the chiller through the first return pipe; wherein, the water outlet efficiency of the water tank water outlet is slightly higher than the water inlet efficiency of the first water tank water inlet, but lower than the simultaneous water inlet efficiency of the first water tank water inlet and the second water tank water inlet.

[0040] During the test, place the high-power galvanometer above the load-carrying water tank; use a high-power laser beam to enter the high-power galvanometer. After the high-power laser beam passes through the internal optical refraction of the high-power galvanometer, it is emitted from below and projected onto the graphite plate.

[0041] Further, it also includes the process of adaptive adjustment of the water tank liquid level:

[0042] Step 1: When the liquid level in the loaded water tank is low, the low liquid level monitoring switch is turned on, with the state "ON", the high liquid level monitoring switch is turned on, with the state "ON", the water passing solenoid valve works, and the second water tank inlet starts to replenish water;

[0043] Step 2: During the water replenishment process, when the liquid level in the loaded water tank is higher than the low liquid level monitoring and lower than the high liquid level monitoring, the low liquid level monitoring switch is open, with the state "OFF", the high liquid level monitoring switch is turned on, with the state "ON", and the water passing solenoid valve continues to work;

[0044] Step 3: When the liquid level in the loaded water tank is higher than the high liquid level monitoring, the low liquid level monitoring switch is open, with the state "OFF", the high liquid level monitoring switch is open, with the state "OFF", the water passing solenoid valve stops working, and the second water tank inlet stops replenishing water;

[0045] Step 4: During the process of the liquid level in the loaded water tank dropping, when the liquid level is lower than the high liquid level monitoring and higher than the low liquid level monitoring, the high liquid level monitoring switch is turned on, with the state "ON", the low liquid level monitoring switch is open, with the state "OFF", and the water passing solenoid valve still remains in the stopped working state;

[0046] Step 5: When the liquid level in the loaded water tank is lower than the low liquid level monitoring again, repeat Steps 1 to 4 in a cycle.

[0047] Due to the application of the above technical solution, the beneficial effects of the present utility model compared with the prior art are:

[0048] The high-power galvanometer loaded aging test device designed by the present utility model is a water-cooled laser focal drift detection device. Through its corresponding test method, this device can detect and feedback the performance and safety reliability of the high-power galvanometer during long-term laser-loaded operation; screen out products with high performance and high reliability, improve the commercial value and market positioning of the products; through this test device, manufacturers and users can more comprehensively understand the performance of the equipment under extreme conditions, so as to make more informed decisions. Brief Description of the Drawings

[0049] Figure 1 It is a schematic diagram of the working state of the test device of the present utility model;

[0050] Figure 2 It is a schematic diagram of the overall structure of the test device of the present utility model;

[0051] Figure 3 It is a schematic diagram of the structure of the loaded water tank and the cold and hot water exchange unit of the present utility model;

[0052] Figure 4 Structural schematic diagram of the low-level monitoring switch and high-level monitoring switch of the present utility model;

[0053] Figure 5 Schematic circuit diagram of the self-adaptive adjustment of the water tank level of the present utility model;

[0054] Figure 6 Schematic diagram of the working principle of the present utility model;

[0055] Figure 7 System structure diagram of the control center of the present utility model.

[0056] In the above drawings, 1. Load-bearing water tank; 2. Chiller; 3. Self-priming booster pump; 4. Hot water return port; 5. Cold water outlet; 6a. First return pipe; 6b. Second return pipe; 7. Water tank outlet; 8. Cold water supply pipe; 9. Check valve; 10. First cold water inlet pipe; 11. Water passing solenoid valve; 12. Second cold water inlet pipe; 13. First water tank inlet; 14. Second water tank inlet; 15. Graphite plate; 16. Curved water guide piece; 17. Low-level monitoring switch; 18. High-level monitoring switch; 19. Low-level fine-tuning nut; 20. High-level fine-tuning nut; 21. First relay; 22. Second relay; 23. High-power laser beam; 24. High-power galvanometer; 25. Hollow tube; 26. Waterproof plug; 27a. First limiter; 27b. Second limiter; 28. Reed switch; 29. Ring-shaped magnetic float; 30. Arc-shaped water guide piece. Specific embodiments

[0057] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0058] It should be noted that in the description of the present utility model, it should be noted that for the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0059] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0060] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the protection scope of the present application; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0061] The following describes the preferred embodiments of the present utility model in detail with reference to the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0062] Embodiment 1:

[0063] See the appendix Figure 1 and the appendix Figure 2As shown in the figure, this embodiment provides a high-power galvanometer load aging test device for detecting the performance and safety reliability of a feedback high-power galvanometer 24 during long-term laser load operation, including:

[0064] A load-bearing water tank 1; the long-term laser load operation performance test of the high-power galvanometer 24 is realized through the load-bearing water tank 1.

[0065] A chiller 2, which is located below the load-bearing water tank 1; among them, the chiller 2 adopts a high-power chiller 2; the chiller 2 provides constant-temperature, constant-flow, and constant-pressure cooling water; see the appendix Figure 7 As shown, there is a safety control center module in the high-power chiller 2. The safety control center module includes a data recording and analysis module, a real-time safety status monitoring module, and a communication and control module. The control center module forms a safety interlock and aging process monitoring with the high-power galvanometer 24, the laser that generates the high-power laser beam 23, and the high-power chiller 2; when an abnormal state is detected, relevant equipment is timely shut down to prevent safety accidents.

[0066] The high-power galvanometer 24 can realize laser monitoring, galvanometer working state monitoring, collimation optical system monitoring and sampling, monitoring of various performance indicators of the galvanometer, field lens state monitoring and sampling, field lens temperature monitoring and sampling, etc.

[0067] The high-power chiller 2 can realize abnormal water temperature detection, abnormal water flow detection, abnormal water pressure monitoring, etc.

[0068] A cold and hot water exchange unit, which is respectively connected to the load-bearing water tank 1 and the chiller 2; the exchange of cold water and hot water in the load-bearing water tank 1 is realized through the cold and hot water exchange unit.

[0069] See the appendix Figure 2 and the appendix Figure 3 As shown, the cold and hot water exchange unit includes: a self-priming booster pump 3; a first return water pipe 6a; one end of the first return water pipe 6a is connected to the hot return water port 4 of the chiller 2, and the other end is connected to the self-priming booster pump 3; a second return water pipe 6b; one end of the second return water pipe 6b is connected to the water tank outlet 7 of the load-bearing water tank 1, and the other end is connected to the self-priming booster pump 3; a cold water supply pipe 8; one end of the cold water supply pipe 8 is connected to the cold water outlet 5 of the chiller 2, and the other end is respectively connected to a first cold water inlet pipe 10 and a second cold water inlet pipe 12. The first cold water inlet pipe 10 is connected to the first water tank inlet 13 on the load-bearing water tank 1, and the second cold water inlet pipe 12 is connected to the second water tank inlet 14 on the load-bearing water tank 1; a check valve 9; the check valve 9 is arranged on the cold water supply pipe 8; a water passing solenoid valve 11; the water passing solenoid valve 11 is arranged on the second cold water inlet pipe 12.

[0070] The cold water outlet 5 of the chiller 2 is connected to the cold water supply pipe 8. A check valve 9 is installed on the cold water supply pipe 8. After passing through the check valve 9, the cold water supply pipe 8 bifurcates. One branch is directly connected to the first cold water inlet pipe 10 and leads to the first water tank inlet 13, and the other branch first passes through the water passing solenoid valve 11 and then is connected to the second cold water inlet pipe 12, and then is connected to the second water tank inlet 14. The water tank outlet 7 is connected to the second return pipe 6b. The second return pipe 6b first passes through the self-priming booster pump 3 and then is connected to the hot water return port 4 of the chiller 2 through the first return pipe 6a.

[0071] The first water tank inlet 13 and the second water tank inlet 14 are located on the same side of the load-carrying water tank 1 and are on the same horizontal plane. The water tank outlet 7 is located above the second water tank inlet 14. There are two first water tank inlets 13 and two second water tank inlets 14, and the two second water tank inlets 14 are both located between the two first water tank inlets 13. Setting the second water tank inlet 14 passing through the water passing solenoid valve 11 between the two first water tank inlets 13 is convenient for controlling the water intake.

[0072] See appendix Figure 3 As shown, the load-carrying water tank 1 includes a graphite plate 15, and the graphite plate 15 is located inside the load-carrying water tank 1; the graphite plate 15 is located in the middle and on the right side of the load-carrying water tank 1, and the height of the graphite plate 15 is between the water tank outlet 7 and the second water tank inlet 14. The graphite plate 15 is arranged in the middle and on the right side of the load-carrying water tank 1 and between the water tank outlet 7 and the second water tank inlet 14. Being close to the water inlet can contact the newly incoming cold water earlier and improve the efficiency of heat exchange. The graphite plate 15 has excellent laser absorption effect, can prevent the high-power laser beam 23 from escaping, improve the safety of the test, and the graphite plate 15 is resistant to high temperature, corrosion, and has excellent heat conduction effect, and is the best laser-bearing material.

[0073] The load-carrying water tank 1 further includes a low liquid level monitoring switch 17, the low liquid level monitoring switch 17 is arranged inside the load-carrying water tank 1, and its upper end is fixed on the load-carrying water tank 1 through a low liquid level fine-tuning nut 19; a high liquid level monitoring switch 18, the high liquid level monitoring switch 18 is arranged inside the load-carrying water tank 1, and its upper end is fixed on the load-carrying water tank 1 through a high liquid level fine-tuning nut 20; a first relay 21, the first relay 21 is fixed on the outside of the load-carrying water tank 1; a second relay 22, the second relay 22 is fixed on the outside of the load-carrying water tank 1.

[0074] See appendix Figure 4As shown, both the low liquid level monitoring switch 17 and the high liquid level monitoring switch 18 include: a hollow tube 25, which is vertically arranged in the load-carrying water tank 1; the hollow tube 25 is made of a transparent material, and the material of the hollow tube 25 includes but is not limited to transparent PC material. The transparent material facilitates observing the position of the internal reed switch 28. A waterproof plug 26, which is clamped at the bottom of the hollow tube 25; a reed switch 28, which is inserted inside the hollow tube 25; a first limiter 27a, which is sleeved on the hollow tube 25 and is arranged higher than the upper end of the reed switch 28; a second limiter 27b, which is sleeved on the hollow tube 25 and is flush with the lower end of the reed switch 28; an annular magnetic float 29, which is sleeved on the hollow tube 25 and is located between the first limiter 27a and the second limiter 27b; the reed switch 28 of the low liquid level monitoring switch 17 is arranged close to the bottom of its corresponding hollow tube 25, and the reed switch 28 of the high liquid level monitoring switch 18 is arranged close to the top of its corresponding hollow tube 25.

[0075] A high-power galvanometer load-carrying aging test device is a device used to test the performance stability and reliability of a high-power galvanometer 24 laser device under long-term load-carrying operation. Its main components also include:

[0076] Laser generator: Generates a high-energy laser beam as the energy source for testing.

[0077] Beam transmission system: Transmits the laser beam generated by the laser generator to the galvanometer scanning system.

[0078] High-power galvanometer 24 system to be tested: This system needs to have the characteristics of high precision, high speed, high-power laser load-carrying, and long-term working safety.

[0079] Laser load-carrying test bench: Used to carry high-power lasers, prevent laser dissipation, and its perfect cooling system can provide long-term safe and effective aging tests, simulate the environment of long-term continuous work, and conduct aging tests on the high-power galvanometer 24 products to be tested.

[0080] Safety monitoring and control system: Real-time monitors and records various performance indicators during the load-carrying aging process, and conducts data analysis and evaluation to understand the performance stability and reliability of the product under long-term load-carrying operation. At the same time, this system also needs to have the functions of abnormal detection and alarm to promptly discover and handle potential problems.

[0081] Embodiment 2:

[0082] See appendix Figure 3As shown in the figure, this embodiment is a further improvement based on Embodiment 1. The specific improvement method is as follows: A curved water guide piece 16 is arranged in the load-carrying water tank 1. The curved water guide piece 16 is located above the graphite plate 15. There are two curved water guide pieces 16, which are respectively detachably inserted on both sides of the load-carrying water tank 1, and the curved water guide piece 16 is bent towards the side. In this embodiment, the setting of the curved water guide piece 16 helps to generate a change in the flow velocity of the water above the graphite plate 15; the change in the flow velocity helps to improve the heat exchange efficiency of the graphite plate 15, increasing the flow velocity: when the water flows through the waist opening (the place where the distance between the two curved water guide pieces 16 is the closest), due to the reduction of the cross-sectional area of the flow-through section, according to the principle of conservation of flow (that is, the volume of fluid passing through a certain section per unit time remains unchanged), the flow velocity will increase accordingly. The change in the flow direction can also increase the distribution area of the water flow, adjusting the flow direction: when the water flow passes through the waist opening, the water flow may form a complex flow field, further generating lateral diffusion, that is, the water flow diffuses laterally on both sides after passing through the waist opening.

[0083] Embodiment 3:

[0084] See the appendix Figure 3 As shown in the figure, this embodiment is a further improvement based on Embodiment 2. The specific improvement method is as follows: An arc-shaped water guide piece 30 is further arranged in the load-carrying water tank 1. The arc-shaped water guide piece 30 is bent downward and is located above the graphite plate 15. The low liquid level monitoring switch 17 and the high liquid level monitoring switch 18 are located above the arc-shaped water guide piece 30. In this embodiment, the structure of the arc-shaped water guide piece 30 optimizes the direction of the water flow circulation, enables the water flow to be evenly distributed and pass through the upper surface of the graphite plate 15. The structure of the arc-shaped water guide piece 30 also helps to stabilize the disturbance of the water flow. The low liquid level monitoring switch 17 and the high liquid level monitoring switch 18 are located above this structure, which can reduce the influence of liquid level fluctuations on the monitoring switch and false triggering.

[0085] Embodiment 4:

[0086] This embodiment provides a high-power galvanometer load-carrying aging test method, which is tested by using a high-power galvanometer load-carrying aging test device. This test method includes:

[0087] Turn on the chiller 2, so that the cold water in the chiller 2 flows from the cold water outlet 5 to the cold water supply pipe 8. After passing through the check valve 9 on the cold water supply pipe 8, it is divided into two paths. One path is sent to the first water tank inlet 13 through the first cold water inlet pipe 10, and the other path first passes through the water passing solenoid valve 11 and then enters the second cold water inlet pipe 12, and then is sent to the second water tank inlet 14. The hot water in the load-bearing water tank 1 flows into the second return pipe 6b through the water tank outlet 7. The second return pipe 6b first passes through the self-priming booster pump 3, and then is sent to the hot water return port 4 of the chiller 2 through the first return pipe 6a; among them, the water outlet efficiency of the water tank outlet 7 is slightly higher than the water inlet efficiency of the first water tank inlet 13, but lower than the simultaneous water inlet efficiency of the first water tank inlet 13 and the second water tank inlet 14.

[0088] During the test, refer to the appendix Figure 1 As shown, place the high-power galvanometer 24 above the load-bearing water tank 1; use a high-power laser beam 23 to enter the high-power galvanometer 24. After the high-power laser beam 23 passes through the internal optical refraction of the high-power galvanometer 24, it is emitted from below so that it is projected onto the graphite plate 15.

[0089] Example Five:

[0090] Refer to the appendix Figure 5 and the appendix Figure 6 As shown, this example is a further improvement based on Example Four. The specific improvement method is: it also includes the water tank liquid level adaptive adjustment process:

[0091] Step 1: When the liquid level in the load-bearing water tank 1 is low, the low liquid level monitoring switch 17 is turned on, the state is "ON", the high liquid level monitoring switch 18 is turned on, the state is "ON", and the water passing solenoid valve 11 works, and the second water tank inlet 14 starts to replenish water;

[0092] Step 2: During the water replenishment process, when the liquid level in the load-bearing water tank 1 is higher than the low liquid level monitoring and lower than the high liquid level monitoring, the low liquid level monitoring switch 17 is open, the state is "OFF", the high liquid level monitoring switch 18 is turned on, the state is "ON", and the water passing solenoid valve 11 continues to work;

[0093] Step 3: When the liquid level in the load-bearing water tank 1 is higher than the high liquid level monitoring, the low liquid level monitoring switch 17 is open, the state is "OFF", the high liquid level monitoring switch 18 is open, the state is "OFF", the water passing solenoid valve 11 stops working, and the second water tank inlet 14 stops replenishing water;

[0094] Step 4: During the process of the liquid level in the load-bearing water tank 1 dropping, when the liquid level is lower than the high liquid level monitoring and higher than the low liquid level monitoring, the high liquid level monitoring switch 18 is turned on, the state is "ON", the low liquid level monitoring switch 17 is open, the state is "OFF", and the water passing solenoid valve 11 still remains in the stopped working state;

[0095] Step Five: When the liquid level in the load-carrying water tank 1 is lower than the low liquid level monitoring again, loop through Step One to Step Four.

[0096] The high-power galvanometer load-carrying aging test device designed by the present utility model is a water-cooled laser focal drift detection device. Through its corresponding test method, this device can detect and feedback the performance and safety reliability of the high-power galvanometer during long-term laser load-carrying operation; screen out products with high performance and high reliability, enhance the commercial value and market positioning of the products; through this test device, manufacturers and users can more comprehensively understand the performance of the equipment under extreme conditions, and thus make more informed decisions.

[0097] The above embodiments are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it. It cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A high-power galvanometer load aging test device, used to detect and feedback the performance and safety reliability of a high-power galvanometer (24) during long-term laser load operation, characterized in that: include: Load tank (1); A water chiller (2), the water chiller (2) being located below the water tank (1); A cold and hot water exchange unit, wherein the cold and hot water exchange unit is respectively connected to the water tank (1) and the water chiller (2).

2. The high-power galvanometer load aging test device according to claim 1, characterized in that: The hot and cold water exchange unit comprises: Self-priming booster water pump (3); a first water return pipe (6a); one end of the first water return pipe (6a) is connected to the hot water return port (4) of the chiller (2), and the other end is connected to the self-priming booster water pump (3); a second water return pipe (6b); one end of the second water return pipe (6b) is connected to the water outlet (7) of the water tank (1), and the other end is connected to the self-priming booster water pump (3); A cold water supply pipe (8); one end of the cold water supply pipe (8) is connected to the cold water outlet (5) of the chiller (2), and the other end is respectively connected to a first cold water inlet pipe (10) and a second cold water inlet pipe (12); the first cold water inlet pipe (10) is connected to a first water tank inlet (13) on the belt-carrying water tank (1), and the second cold water inlet pipe (12) is connected to a second water tank inlet (14) on the belt-carrying water tank (1); Check valve (9); the check valve (9) is arranged on the cold water supply pipe (8); A water-passing electromagnetic valve (11); the water-passing electromagnetic valve (11) is arranged on the second cold water inlet pipe (12).

3. The high-power galvanometer load aging test device according to claim 2, characterized in that: The first water tank water inlet (13) and the second water tank water inlet (14) are located on the same side of the loaded water tank (1) and are both located on the same horizontal plane, and the water tank water outlet (7) is located above the second water tank water inlet (14).

4. The high-power galvanometer load aging test device according to claim 3 is characterized in that: Two of the first water tank water inlets (13) and two of the second water tank water inlets (14) are provided, and the two second water tank water inlets (14) are located between the two first water tank water inlets (13).

5. The high-power galvanometer load aging test device according to claim 4, characterized in that: The water tank (1) comprises: A graphite plate (15), the graphite plate (15) being located in the water-carrying tank (1); A low liquid level monitoring switch (17), the low liquid level monitoring switch (17) being arranged in the belt-carrying water tank (1), and the upper end of the low liquid level monitoring switch (17) being fixed to the belt-carrying water tank (1) via a low liquid level fine-tuning nut (19); A high liquid level monitoring switch (18), the high liquid level monitoring switch (18) being arranged in the belt-carrying water tank (1), and the upper end of the high liquid level monitoring switch (18) being fixed to the belt-carrying water tank (1) via a high liquid level fine-tuning nut (20); A first relay (21), the first relay (21) being fixed on the outside of the water tank (1); A second relay (22), the second relay (22) being fixed on the outside of the water tank (1).

6. The high-power galvanometer load aging test device according to claim 5, characterized in that: The graphite plate (15) is located on the right side of the middle of the water tank (1), and the height of the graphite plate (15) is between the water tank outlet (7) and the second water tank inlet (14).

7. The high-power galvanometer load aging test device according to claim 6, characterized in that: The low liquid level monitoring switch (17) and the high liquid level monitoring switch (18) both include: A hollow tube (25), the hollow tube (25) being vertically arranged in the water tank (1); A waterproof plug (26), the waterproof plug (26) being disposed at the bottom of the hollow tube (25); A reed switch (28), wherein the reed switch (28) is inserted into the hollow tube (25); a first limiter (27a), the limiter being sleeved on the hollow tube (25) and arranged higher than the upper end of the reed switch (28); a second limiter (27b), the limiter being sleeved on the hollow tube (25) and being arranged flush with the lower end of the reed switch (28); an annular magnetic float (29), the annular magnetic float (29) being sleeved on the hollow tube (25) and being located between the first stopper (27a) and the second stopper (27b); The reed switch (28) of the low liquid level monitoring switch (17) is arranged close to the bottom of its corresponding hollow tube (25), and the reed switch (28) of the high liquid level monitoring switch (18) is arranged close to the top of its corresponding hollow tube (25).

8. The high-power galvanometer load aging test device according to claim 7, characterized in that: The hollow tube (25) is made of a transparent material.

9. The high-power galvanometer load aging test device according to claim 8, characterized in that: A curved water guide sheet (16) is arranged in the belt-carrying water tank (1), the curved water guide sheet (16) is located above the graphite plate (15), two curved water guide sheets (16) are arranged and are detachably inserted on both sides of the belt-carrying water tank (1), and the curved water guide sheets (16) are arranged to bend toward the side.

10. The high-power galvanometer load aging test device according to claim 9, characterized in that: The belt-carrying water tank (1) is further provided with an arc-shaped water guide (30), the arc-shaped water guide (30) being bent downward and located above the graphite plate (15), and the low liquid level monitoring switch (17) and the high liquid level monitoring switch (18) being located above the arc-shaped water guide (30).

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