Laser equipment power testing device and laser equipment power testing method

Abstract

The present invention provides a laser device power test device and a laser device power test method. The device comprises: a base, an adjustment assembly, a reflector assembly, a probe support assembly, a fully reflective lens, an indicator lens, and a power meter. The adjustment assembly is disposed below the base, the reflector assembly is fixedly disposed on the base, the probe support assembly is fixedly disposed on the reflector assembly, the fully reflective lens is mounted within the reflector assembly, the indicator lens is located on the probe support assembly, and the power meter is disposed above the indicator lens. When laser light emitted by the laser device strikes the fully reflective lens, it is reflected onto the indicator lens, and the power meter measures the power of the laser light reflected by the indicator lens. The present invention enables testing by only moving the laser device power test device, without moving the beam expander. This ensures that the original optical path of the laser device is not shifted during actual use, avoiding the need to recalibrate the laser device's optical path after the test is completed, thereby enabling rapid, accurate, and impact-free measurement of laser power.

Description

Technical Field

[0001] The present invention relates to the technical field of laser power detection, and in particular to a laser equipment power testing device and a laser equipment power testing method. Background Art

[0002] Lasers offer advantages such as good directionality, high machining precision, contactless processing, and concentrated energy density. Currently, lasers and laser systems are widely used in electronics, automotive, electrical appliances, aviation, and other fields. Laser processing equipment primarily consists of a laser, optical system, control system, and mechanical system. The laser outputs high-intensity laser light of a specific wavelength through an internal resonant cavity. This laser is then focused on the workpiece surface by optical components such as beam expanders, reflectors, galvanometers, and lenses, generating high energy and completing the material processing.

[0003] Laser power loss is one of the main issues affecting the efficiency of laser processing equipment. Laser power loss is divided into air dielectric loss between optical components and optical component loss. Among them, air dielectric loss is the power loss caused by the collision of laser with dust particles distributed in the air during transmission. If the dust concentration is too high, it will cause nearby components to overheat and be damaged. Therefore, equipping laser processing equipment with an optical path dustproof tube that shortens the air path between laser optical components is the most effective way to reduce air dielectric loss. Optical component loss occurs because the laser continuously bombards the surface of the optical component, which will damage the mirror reflection film, resulting in increasing power loss and reducing the energy reaching the workpiece surface. Therefore, it is necessary to regularly check the loss of optical lenses in the optical path. Since the first lens of the beam expander is adjacent to the laser, it is damaged by the laser the fastest. Therefore, the laser power loss is generally determined by regularly measuring the actual energy on the laser light output side or the loss energy of the beam expander in order to measure the laser power.

[0004] However, the existing laser power measurement method requires moving the beam expander to measure the beam expander loss. However, moving the beam expander will change the entire optical path. When the beam expander loss is serious, it takes a long time to calibrate and debug the entire optical path after replacing the beam expander, resulting in the inability to measure laser power quickly, accurately and without impact. Summary of the Invention

[0005] The embodiments of the present invention provide a laser device power testing device and a laser device power testing method to solve the problem in the prior art that when measuring laser power, moving the beam expander causes the optical path to change, resulting in the inability to measure laser power quickly, accurately and without influence.

[0006] In a first aspect, an embodiment of the present invention provides a laser equipment power test device, comprising: a base, an adjustment component, a reflection component, a probe support component, a fully reflective lens, an indicator lens, and a power meter;

[0007] The adjustment component is arranged under the base, and is used to support the base and adjust the height and angle of the base;

[0008] The reflective component is fixedly arranged on the base and changes with the height and angle of the base;

[0009] The probe support assembly is fixedly arranged on the reflective assembly and changes with the height and angle of the reflective assembly;

[0010] The fully reflective lens is installed in the reflective assembly, the indicator lens is located on the probe support assembly, and the power meter is arranged above the indicator lens;

[0011] When the laser emitted by the laser device irradiates the total reflection mirror, it is reflected onto the indicator mirror, and the power meter measures the power of the laser on the indicator mirror.

[0012] In one possible implementation, the adjustment assembly includes: a first motor, a second motor, a first screw rod, a second screw rod, a third screw rod, a first screw rod slider, a second screw rod slider, a third screw rod slider, a first coupling, a second coupling, a third coupling, a gear, a ratchet, a third rotating shaft, a connecting rod, and a belt;

[0013] One end of the first screw rod is connected to the first rotating shaft of the first motor through the first coupling, and rotates with the rotation of the first rotating shaft of the first motor; the first screw rod slider is provided on the first screw rod, and slides up and down on the first screw rod as the first screw rod rotates;

[0014] One end of the second screw is connected to the second rotating shaft of the second motor through the second coupling, and rotates with the rotation of the second rotating shaft of the second motor; the second screw slider is provided on the second screw, and slides up and down on the second screw as the second screw rotates;

[0015] One end of the third screw is connected to the third rotating shaft through the third coupling and rotates with the rotation of the third rotating shaft; the third screw slider is provided on the third screw and slides up and down on the third screw as the third screw rotates;

[0016] The gear is arranged on the first rotating shaft of the first motor; the ratchet is arranged on the third rotating shaft, and the gear and the ratchet are driven by the belt;

[0017] The first screw slider, the second screw slider and the third screw slider are respectively provided with connecting rods, and are connected to the base through corresponding connecting rods.

[0018] In a possible implementation, the adjustment assembly further includes: an eccentric wheel and a shift rod;

[0019] The eccentric wheel is arranged on the second rotating shaft of the second motor, and the eccentric wheel and the ratchet wheel are driven by the shifting rod.

[0020] In a possible implementation, the first motor and the second motor are both micro-stepping motors;

[0021] The shifting rod is an elastic shifting rod.

[0022] In a possible implementation, the base includes a support tube and a bottom plate;

[0023] One end of the support tube is fixed on the bottom film, and the other end of the support tube is connected to the reflective assembly;

[0024] A plurality of fixing holes are provided on the bottom plate, and each fixing hole is connected to a corresponding screw slider through a corresponding connecting rod.

[0025] In a possible implementation, the reflective assembly includes a reflective frame and a support rod;

[0026] One end of the support rod is fixed to the lower surface of the reflector frame for supporting the reflector frame; the other end of the support rod is sleeved into the other end of the support tube of the base, and a top screw is provided to adjust the length of the other end of the support rod sleeved into the other end of the support tube of the base by the top screw;

[0027] The reflector frame includes a box body and an inclined support plate, wherein the box body is composed of three connected side surfaces and a bottom surface, the inclined support plate is arranged in the box body, and the top end of the inclined support plate is connected to the rear side surface of the box body, and the bottom end of the inclined support plate is connected to the bottom surface of the box body;

[0028] The inclined support plate is provided with a groove for fixing the total reflection lens.

[0029] In one possible implementation, the probe support assembly includes: a plurality of support rods and a tray;

[0030] One end of the plurality of support rods is connected to the bottom surface of the tray to support the tray;

[0031] The other ends of the plurality of support rods are connected to the top surface of the reflection frame of the reflection assembly.

[0032] In a second aspect, an embodiment of the present invention provides a laser device power testing method, which uses the laser device power testing device provided by the present invention, and also uses a laser and a beam expander, wherein the laser, the beam expander, and the reflector are at the same height. The laser device power testing method includes:

[0033] The adjustment component is used to adjust the height of the reflective component when the laser equipment power test device is arranged between the laser and the beam expander, so that the test laser of the laser is reflected on the indicator lens through the total reflection lens; and after the standard laser of the laser is stable, adjust the height and angle of the reflective component to ensure that the standard laser is reflected on the target test position of the indicator lens through the total reflection lens;

[0034] The power meter collects the power of the standard laser reflected on the indicator lens to obtain first laser energy data; and determines the laser power of the laser according to the first laser energy data;

[0035] The adjustment component is used to re-execute the adjustment steps of the height and angle of the reflective component by the adjustment component when the laser equipment power testing device is located behind the collimator. The power meter determines the second laser energy data and obtains the laser loss data of the collimator based on the first laser energy data and the second laser energy data.

[0036] In a possible implementation, the initial positions of the first screw slider, the second screw slider, and the third screw slider are set at the lowest point or the highest point of the corresponding screw;

[0037] The adjusting the height and angle of the reflective assembly to ensure that the standard laser is reflected by the total reflective lens at the target test position of the indicator lens comprises:

[0038] The first motor and the second motor are started simultaneously, driving the first screw slider, the second screw slider, and the third screw slider to slide once between the lowest point and the highest point of the corresponding screw, and the first motor and the second motor are turned off; the power meter records the power value of the slider during the sliding, and determines that the maximum power value is a first target value; the first motor and the second motor are started simultaneously and turned off when the power meter displays the first target value, and the current position of the third screw slider is determined to be the target position of the third screw slider;

[0039] The second motor is started, driving the second screw slider to slide once between the lowest point and the highest point of the second screw, and the second motor is turned off; the power meter records the power value of the second screw slider during sliding, and determines the maximum power value as the second target value; the second motor is started and turned off when the power meter displays the second target value, and the current position of the second screw slider is determined to be the target position of the second screw slider;

[0040] The second motor is started, the eccentric wheel rotates, and the ratchet is disengaged through the shifting rod, the rotation direction of the ratchet is changed, and the second motor is turned off; the first motor is started, and the first screw slider is driven to slide once between the lowest point and the highest point of the first screw, and the first motor is turned off. The power meter records the power value of the first screw slider during the sliding, and determines that the maximum power value is a third target value; the first motor is started and turned off when the power meter displays the third target value, and the current position of the first screw slider is determined to be the target position of the first screw slider;

[0041] The position where the standard laser is reflected on the indicator lens by the total reflection lens is the target test position.

[0042] In a possible implementation, obtaining the laser loss data of the beam expander according to the first laser energy data and the second laser energy data includes:

[0043] The difference between the first laser energy data and the second laser energy data is calculated, and the difference is used as the laser loss data of the beam expander.

[0044] An embodiment of the present invention provides a laser device power testing device and a laser device power testing method. By vertically installing a probe support assembly, a reflection assembly, and a base, the laser device power testing device is made more compact and flexible, easy to move and place, and can be directly placed between the laser and the beam expander in the laser device. When detecting the laser power and the loss of the optical lens in the optical path, only the laser device power testing device needs to be moved, and there is no need to move the beam expander. Since the laser device power testing device is moved but the position of the components in the laser device is not changed, it can be ensured that the original optical path of the laser device will not be offset during actual use, avoiding the need to re-debug and calibrate the optical path of the laser device after the test is completed, so as to measure the laser power quickly, accurately, and without impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 Schematic diagram of the structure of a laser device power test device provided by an embodiment of the present invention;

[0047] Figure 2 This is a schematic structural diagram of an adjustment component of a laser device power test device provided by an embodiment of the present invention;

[0048] Figure 3 This is a structural exploded diagram of a laser device power test device provided by an embodiment of the present invention;

[0049] Figure 4 This is a flow chart of the implementation of the laser device power testing method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0051] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below with reference to the accompanying drawings.

[0052] With the advancement of laser technology, the miniaturization and integration of laser equipment will continue to be the future development trend. For small laser equipment, the gap between the laser and the beam expander is small, and the probe of the power meter in the existing technology is difficult to place directly. Therefore, when measuring the laser power emitted by the laser, the beam expander must be moved. However, after moving the beam expander for measurement, it takes a long time to debug the optical path of the laser equipment. Therefore, the present invention provides a laser equipment power test device. This laser equipment power test device can be placed between the laser and the beam expander to measure laser power. Because this device is very small, it can be placed in the gap between the laser and the beam expander. Therefore, only the laser equipment power test device can be moved without moving the beam expander.

[0053] Figure 1The schematic diagram of the structure of the laser device power test device provided by the embodiment of the present invention shows only the parts related to the embodiment of the present invention for ease of explanation, which are detailed as follows:

[0054] The laser equipment power test device includes: an adjustment component 1, a base 2, a reflection component 3, a probe support component 4, a full-reflection lens 5, an indicator lens 6, and a power meter 7;

[0055] The adjustment component 1 is arranged under the base 2 and is used to support the base 2 and adjust the height and angle of the base 2;

[0056] The reflective component 3 is fixedly mounted on the base 2 and changes with the height and angle of the base 2;

[0057] The probe support assembly 4 is fixedly arranged on the reflective assembly 3 and changes with the height and angle of the reflective assembly 3;

[0058] The full-reflective lens 5 is installed in the reflective assembly 3, the indicator lens 6 is located on the probe support assembly 4, and the power meter 7 is set above the indicator lens;

[0059] When the laser light emitted by the laser device hits the total reflection mirror 5, it is reflected onto the indicator mirror 6, and the power meter 7 measures the power of the laser light on the indicator mirror.

[0060] An embodiment of the present invention provides a laser device power test device. By vertically installing an adjustment component, a base, a reflection component, a probe support component, a fully reflective lens, an indicator lens, and a power meter, the laser device power test device is made more compact and flexible, and is easy to move and place. In a laser device, the laser is adjacent to the first lens of a beam expander. In existing laser power test methods, the beam expander needs to be moved for measurement. However, the laser device power test device provided by an embodiment of the present invention can be placed between the laser and the beam expander. When detecting the laser power and the loss of the optical lens in the optical path, only the laser device power test device needs to be moved, without moving the beam expander. This ensures that the original optical path inside the laser device will not be offset after the test is completed, avoiding the need to re-adjust and calibrate the optical path of the laser device after the test is completed, so as to measure the laser power quickly, accurately, and without interference.

[0061] In the prior art, leveling feet are used to manually adjust the height and angle of the base in the laser equipment power test device. Although manual adjustment is direct and convenient, it cannot ensure that the leveling feet can be accurately adjusted according to the power meter, and human errors often occur. In addition, during the manual adjustment process, it is very likely that the components in the laser equipment will be touched, causing the position of the components to shift. As a result, after the test is completed, the optical path in the laser equipment needs to be calibrated and debugged, and it is impossible to measure the laser power quickly, accurately, and without impact.

[0062] The regulating assembly provided by the present invention is controlled by a motor to perform accurate regulation.

[0063] Optional, such as Figure 2 As shown, the adjustment component 1 includes: a first motor 111, a gear 113, a first coupling 114, a first screw rod 115, a first screw rod slider 116, a first connecting rod 117, a second motor 121, a second coupling 124, a second screw rod 125, a second screw rod slider 126, a second connecting rod 127, a third rotating shaft 132, a ratchet 133, a third coupling 134, a third screw rod 135, a third screw rod slider 136, a third connecting rod 137 and a belt 141.

[0064] One end of the first screw rod 115 is connected to the first rotating shaft 112 of the first motor 111 via a first coupling 114 and rotates as the first rotating shaft 112 of the first motor 111 rotates. A first screw slider 116 is disposed on the first screw rod 115 and slides up and down on the first screw rod 115 as the first screw rod 115 rotates. By turning on the first motor 111 and adjusting the rotation direction of the first motor 111, the first motor 111 can drive the first rotating shaft 112 and the first screw rod 115 connected via the first coupling 114 to rotate. The first screw slider 116 is provided with a thread that engages with the first screw rod 115. Therefore, as the first screw rod 115 rotates, the first screw slider 116 can slide up and down, thereby adjusting the height of the first screw slider 116 relative to the ground.

[0065] One end of the second screw rod 125 is connected to the second rotating shaft 122 of the second motor 121 via a second coupling 124, and rotates as the second rotating shaft 122 of the second motor 121 rotates. A second screw slider 126 is disposed on the second screw rod 125 and slides up and down on the second screw rod 125 as the second screw rod 125 rotates. By turning on the second motor 121 and adjusting the rotation direction of the second motor 121, the second motor 121 can drive the second rotating shaft 122 and the second screw rod 125 connected via the second coupling 124 to rotate. The second screw slider 126 is provided with a thread that interlocks with the second screw rod 125. Therefore, as the second screw rod 125 rotates, the second screw slider 126 can slide up and down, thereby adjusting the height of the second screw slider 126 relative to the ground.

[0066] One end of the third screw rod 135 is connected to the third rotating shaft 132 via a third coupling 134 and rotates with the rotation of the third rotating shaft 132. A third screw slider 136 is disposed on the third screw rod 135 and slides up and down on the third screw rod 135 as the third screw rod 135 rotates. The gear 113 and the ratchet 133 can be driven by a belt 141 to form a transmission structure. By turning on the first motor 111 and adjusting the rotation direction of the first motor 111, the first motor 111 rotates the third rotating shaft 132 through the transmission structure. The third rotating shaft 132 can drive the third screw rod 135, which is connected to the third rotating shaft 132 via the third coupling 134, to rotate. The third screw slider 136 is provided with a thread that interlocks with the third screw rod 135. Therefore, as the third screw rod 135 rotates, the third screw slider 136 can slide up and down, thereby adjusting the height of the third screw slider 136 relative to the ground.

[0067] The gear 113 is disposed on the first rotating shaft 112 of the first motor 111 ; the ratchet 133 is disposed on the third rotating shaft 132 . The gear 113 and the ratchet 133 are driven by a belt 141 to form a transmission structure.

[0068] Through the cooperation of gear 113 and ratchet 133, gear 113 rotates with the first rotating shaft, thereby driving the belt transmission. The ratchet 133 rotates under the drive of the belt, and the rotation of the ratchet 133 drives the rotation of the third rotating shaft. The third screw rod 135 connected to the third rotating shaft 132 through the third coupling 134 rotates with the rotation of the third rotating shaft, so that the internal thread of the third screw rod slider 136 engages with the outer surface thread of the third screw rod 135 to realize the up and down sliding of the third screw rod slider 136, thereby realizing the first motor 111 driving the first screw rod slider and the third screw rod slider to slide up and down at the same time, thereby reducing the number of motors, and finally using two motors to realize the control of the three screw rods, reducing the cost of the device, and improving the efficiency of the height adjustment of the first screw rod slider and the third screw rod slider.

[0069] The first, second, and third screw sliders 116, 126, and 136 are each provided with a first connecting rod 117, a second connecting rod 127, and a third connecting rod 137, respectively, and are connected to the base via the corresponding connecting rods. Therefore, as the height of the first, second, and third screw sliders 116, 126, and 136 relative to the ground changes, the height of the base to which they are connected also changes accordingly.

[0070] The gear and the ratchet can be driven by a belt. By turning on the first motor 111 and adjusting the rotation direction of the first motor 111, the first motor 111 can drive the first rotating shaft 112 and the gear 113 on the first rotating shaft 112 to rotate, so that the gear 113 drives the ratchet 133 to rotate through the connected belt 141, and the ratchet 133 drives the third rotating shaft 132 to rotate.

[0071] The second motor 121 can control the second screw slider 126 to slide up and down, the first motor 111 can control the first screw slider 116 to slide up and down, and can control the third screw slider 136 to slide up and down through the ratchet 133 connected by the belt 141; the ratchet is a variable-direction ratchet, and the states of the variable-direction ratchet are reverse tripping and forward tripping. The ratchet pawl is hinged on the rocker. When reverse tripping, when the rocker swings clockwise, the driving pawl is inserted into the ratchet teeth to push the ratchet to rotate in the same direction. When the rocker swings counterclockwise, the pawl slides over the ratchet and the ratchet stops rotating. When forward tripping, when the rocker swings counterclockwise, the driving pawl is inserted into the ratchet teeth to push the ratchet to rotate in the same direction. When the rocker swings clockwise, the pawl slides over the ratchet and the ratchet stops rotating. Therefore, according to the different states of the ratchet and the different rotation directions of the first motor 111, the first motor can control the ratchet to rotate forward, reverse or not, so the first motor 111 can control the first screw slider 116 and the third screw slider 136 at the same time, or only control the first screw slider 116, so that the first motor can control the first screw slider 116 and the third screw slider 136 to be in different positions to achieve separate control, so the positions of the first screw slider 116, the second screw slider 126 and the third screw slider 136 can be controlled respectively by the first motor 111 and the second motor 112 to achieve accurate adjustment of the height and angle of the base.

[0072] Optionally, the adjustment assembly 1 further includes: an eccentric wheel 123 and a shifting rod 142;

[0073] The eccentric wheel 123 is set on the second rotating shaft 122 of the second motor 121. The eccentric wheel 123 and the ratchet 133 are transmitted through the lever 142, so that the second motor 121 can control the ratchet 133 through the lever 142, so that the ratchet 133 can change the direction of movement. By turning on the second motor 121, the rotation direction of the second motor 121 is adjusted. The second motor 121 drives the second rotating shaft 122 and the eccentric wheel 123 on the second rotating shaft 122. The eccentric wheel 123 adjusts the movement direction of the ratchet 133 through the connected lever 142, so that the first motor 111 controls the ratchet 133 to rotate forward, reverse or not, so that the third screw slider 136 moves up and down on the third screw rod 135 to reach the accurate target position, thereby realizing accurate and rapid adjustment of the third screw slider 136.

[0074] Optionally, the first motor 111 and the second motor 121 are both micro stepper motors. Micro stepper motors are small in size and save space, and are more conducive to being placed in laser equipment without moving components in the laser equipment; they have low vibration and low noise, and can be placed in the laser equipment to avoid affecting the components in the laser equipment.

[0075] Optionally, the lever 142 is an elastic lever whose length is adjustable, so that when adjusting the direction of the ratchet, the problem of difficulty in adjustment caused by the lever being too long or too short can be avoided.

[0076] Optionally, the connecting rod set between the screw slider and the base can be a spring hook, and the hook part of the spring hook is connected to the fixing hole set on the base. In the process of adjusting one of the screw sliders by the adjustment component separately, the use of the spring hook can avoid the problem that the height of the screw slider cannot be adjusted due to insufficient length of the connecting rod, making the adjustment process smoother and the base moving stably.

[0077] like Figure 3 This is a structural breakdown diagram of the laser equipment power test device.

[0078] Optionally, the base 2 includes a support tube 21 and a bottom plate 22;

[0079] One end of the support tube 21 is fixed on the bottom film 22, and the other end of the support tube 21 is connected to the reflective component 3;

[0080] A plurality of fixing holes 23 are provided on the bottom plate 22, and each fixing hole is connected to a corresponding screw slider via a corresponding connecting rod;

[0081] The other end of the connecting rod in the adjustment component 1, which is correspondingly connected to the first screw slider 116, the second screw slider 126 and the third screw slider 136, is correspondingly connected to the fixing hole 23, so that the film can change the height or angle as the screw sliders slide up and down.

[0082] Optionally, the support tube 21 may be located at the center of the bottom plate 22 .

[0083] Optionally, the shape of the bottom film 22 may be circular, square, or polygonal. In this embodiment, the shape of the bottom film 22 is not limited, but for the stability of the base, the shape of the bottom film 22 is a regular pattern.

[0084] Optionally, the reflection assembly 3 includes a reflection frame 31 and a support rod 32;

[0085] One end of the support rod 32 is fixed to the lower surface of the reflection frame 31 to support the reflection frame 31;

[0086] The other end of the support rod 32 is sleeved into the other end of the support tube 21 of the base 2, and a top screw 33 is provided. The top screw 33 can be used to adjust the length of the other end of the support rod sleeved into the other end of the support tube 21 of the base 2; thereby, the height of the reflector frame can be adjusted.

[0087] The reflector frame 31 includes a box body 311 and an inclined support plate 312. The box body 311 is composed of three connected side surfaces and a bottom surface. The inclined support plate 312 is arranged in the box body, and the top end of the inclined support plate 312 is connected to the rear side surface of the box body 311, and the bottom end of the inclined support plate 312 is connected to the bottom surface of the box body 311. In other words, one side surface and the top surface of the box body 311 are open so that the inclined support plate 312 can be exposed.

[0088] In one embodiment, the angle between the inclined surface of the inclined support plate 312 and the bottom surface of the box body 311 can be 15° to 75°. For example, the angle between the inclined surface of the inclined support plate 312 and the bottom surface of the box body 311 is 30°, 45°, 50°, etc.

[0089] The tilted support plate 312 is provided with a groove for fixing the total reflective lens 5, that is, the total reflective lens 5 is arranged in the groove, and the total reflective lens 5 is in a tilted state. When the laser is irradiated onto the total reflective lens 5, the reflection direction of the laser can be changed so that the laser is irradiated onto the indicator lens, thereby realizing the detection of the laser power.

[0090] Optionally, the tilting support plate 312 includes at least one fixing washer, multiple fixing screws, and multiple fixing spacers. The fixing washer can be positioned between the fully reflective lens 5 and the groove to support, secure, and protect the fully reflective lens. The fixing screws can be positioned around the groove of the tilting support plate 312 to secure the fully reflective lens to prevent it from falling off and ensure a stable and smooth height and angle adjustment process. The fixing spacers can be positioned between the fixing screws and the tilting support plate to secure and protect the fully reflective lens to prevent the fixing screws from damaging the fully reflective lens, causing scratches on the surface of the fully reflective lens, or causing the fully reflective lens to break.

[0091] Optionally, the tilting support plate 312 includes at least three fixing screws and three fixing washers.

[0092] Optionally, the support rod 32 is located at the center of the lower surface of the reflection frame 31 to stably support the reflection frame, and to conveniently and accurately adjust the height and angle of the reflection frame to avoid deviation.

[0093] The diameter of the support rod 32 is smaller than the inner diameter of the support tube 21 of the base 2 , so that the support tube 21 can be sleeved with the support rod 32 .

[0094] The support rod 32 and the support tube 21 can also be fixed by a circular protruding buckle. There is a circular hole on the support rod 32, and a circular protruding buckle is fixed at the same time. There are multiple circular holes on the support tube, and the multiple circular holes are located at different heights and arranged vertically. The size of the circular holes corresponds to the circular protruding buckle on the support rod 32, so as to realize fast, accurate and convenient adjustment of the height of the reflector frame through the support rod and the support tube.

[0095] Optionally, the probe support assembly 4 includes: a plurality of support rods 42 and a tray 41;

[0096] One end of a plurality of support rods 42 is connected to the bottom surface of the tray 41 for supporting the tray;

[0097] The other ends of the multiple support rods 42 are connected to the reflector frame 31 of the reflector assembly 3. Specifically, the other ends of the support rods 42 are connected to the upper surface of the side of the box body 311 of the reflector frame 31, and the corresponding positions of the box body 311 of the reflector frame 31 are provided with holes for fixing, so that the support rods 42 are fixed on the reflector frame 31.

[0098] Optionally, the support rod 42 and the reflector frame 31 are connected in at least one of the following ways: rivet connection, bolt connection, key pin connection, welding and bonding. When welding or bonding is adopted, the support rod 42 can be directly connected to the corresponding position of the box body 311 of the reflector frame 31.

[0099] Optionally, a plurality of support rods 42 are evenly distributed below the tray 41 to stably support the tray 41 .

[0100] Optionally, the probe support assembly 4 includes at least three support rods.

[0101] Optionally, the shape of the tray 41 can be circular, square, triangular, etc. In this embodiment, the shape of the tray 41 is not limited, but in order to indicate the placement of the lens and the stability of the base, the shape of the tray 41 is a regular pattern.

[0102] Optionally, there is a hole at the bottom of the tray 41 to facilitate the laser to pass through the hole and illuminate the indicator lens 6; the size of the hole should be smaller than the indicator lens to prevent the indicator lens from falling out of the hole; the shape of the hole can be round, square, triangular, etc., and the shape of the hole is not limited in this embodiment, but in order for the laser to be able to stably and accurately illuminate the indicator lens 6, the shape of the hole is a regular pattern.

[0103] The embodiment of the present invention uses a laser device power test device, which adopts a vertical installation method of an adjustment component, a base, a reflection component and a probe holder component, and uses a micro-stepping motor control method to conveniently perform multi-angle adjustment, thereby avoiding human influence on the components in the laser device. It also makes the laser device power test device more compact and flexible, and easy to move and place. In the laser device, the laser is adjacent to the first lens of the beam expander. In the existing laser power test method, the beam expander needs to be moved for measurement. The laser device power test device provided by the embodiment of the present invention can be placed between the laser and the beam expander. When detecting the loss of the optical lens in the optical path, only the laser device power test device needs to be moved, and there is no need to move the beam expander. Since the laser device power test device is moved but the position of the components in the laser device is not changed, it can be ensured that the original optical path of the laser device will not be offset during actual use, avoiding the need to re-adjust and calibrate the optical path of the laser device after the test is completed, so as to measure the laser power quickly, accurately and without impact.

[0104] The following is an embodiment of the laser device power testing method of the present invention. For details not described in detail, please refer to the above-mentioned device embodiment.

[0105] Figure 4 A flowchart of an implementation of a laser device power testing method provided by an embodiment of the present invention is shown. For ease of explanation, only the portion related to the embodiment of the present invention is shown.

[0106] Using any of the laser equipment power test devices described in the aforementioned embodiments, and also using the laser and beam expander in the laser equipment, the laser, beam expander, and reflector are at the same height. Here, the height of the reflector assembly is adjusted using a top screw or circular raised buckle on the laser equipment power test device, so that the laser, beam expander, and reflector are essentially at the same height. Subsequent fine-tuning using the adjustment assembly allows for accurate laser power measurement. The laser equipment power test method is detailed below:

[0107] Step 401: Place the laser equipment power test device between the laser and the beam expander, adjust the height of the reflective component so that the test laser of the laser is reflected on the indicator lens through the total reflection lens; and after the standard laser of the laser is stabilized, adjust the height and angle of the reflective component to ensure that the standard laser is reflected on the target test position of the indicator lens through the total reflection lens.

[0108] The movement mode of the adjustment component is as follows:

[0109] When adjusting the base via the adjustment assembly, the forward or reverse rotation of the second motor drives the eccentric wheel to move the elastic lever in different directions. This lever controls the direction of the ratchet assembly's pawl, thereby enabling the first motor to drive the third screw or the first motor to move alone. Depending on the status of the first and second motors and the ratchet, 10 different movement modes can be achieved. See the table below for details:

[0110]

[0111]

[0112] Optionally, the initial positions of the first screw slider, the second screw slider and the third screw slider in the adjustment component are set at the lowest point or the highest point of the corresponding screw, so that the screw slider can achieve a complete sliding of the screw on the screw during the subsequent fine-tuning of the reflection component.

[0113] Adjust the height and angle of the reflective assembly to ensure that the standard laser is reflected by the total reflective lens at the target test position of the indicator lens, including:

[0114] Using mode 1 or mode 4, the first motor and the second motor are started at the same time, driving the first screw slider, the second screw slider and the third screw slider to slide once between the lowest point and the highest point of the corresponding screw, and the first motor and the second motor are turned off; the power meter records the power value when the slider slides, and determines the maximum power value as the first target value; the first motor and the second motor are started at the same time, and are turned off when the power meter displays the first target value, and the current position of the third screw slider is determined to be the target position of the third screw slider.

[0115] Here, the first and second motors are simultaneously activated, causing the gear to drive the ratchet to rotate, and the first, second, and third lead screw sliders can slide simultaneously on their corresponding lead screws, thereby determining the target positions of the corresponding lead screw sliders based on the first target value displayed by the power meter. At this point, the positions of the three lead screw sliders can determine the approximate height and angle of the reflective assembly. Subsequently, by activating the second and first motors, respectively, the positions of the corresponding second and first lead screw sliders can be fine-tuned to obtain the optimal height and angle of the reflective assembly. At this point, the laser power on the indicator lens measured by the power meter is the highest.

[0116] Using mode 9 or mode 10, the second motor starts, driving the second screw slider to slide once between the lowest point and the highest point of the second screw, and the second motor is turned off; the power meter records the power value when the second screw slider slides, and determines the maximum power value as the second target value; the second motor starts and is turned off when the power meter displays the second target value, and determines that the current position of the second screw slider is the target position of the second screw slider.

[0117] Starting the second motor separately and adjusting the second lead screw slider separately is to fine-tune the height and angle of the reflector frame on the original basis, so that more laser light is reflected on the indicator lens.

[0118] When mode 9 or mode 10 is used, the second motor is started, the eccentric wheel rotates, and the ratchet is disengaged through the lever, the direction of rotation of the ratchet is changed, and the second motor is turned off; the second motor is started to change the direction of rotation of the ratchet, so that the transmission mode of the gear and the ratchet is disconnected, avoiding the adjustment of the first screw slider while driving the third screw slider to move through the transmission of the ratchet to achieve separate adjustment of the first screw slider.

[0119] Using mode 6 or mode 8, the first motor is started, driving the first screw slider to slide once between the lowest point and the highest point of the first screw, and the first motor is turned off. The power meter records the power value when the first screw slider slides, and determines that the maximum power value is the third target value; the first motor is started and turned off when the power meter displays the third target value, and determines that the current position of the first screw slider is the target position of the first screw slider.

[0120] Starting the first motor separately and adjusting the first lead screw slider separately is to fine-tune the height and angle of the reflector frame on the original basis, so that more laser light is reflected on the indicator lens, making the power value measured by the power meter more accurate.

[0121] After determining the positions of the first, second and third screw sliders respectively, the positions of the corresponding total reflection lens and indicator lens are also determined. At this time, the position where the standard laser is reflected by the total reflection lens on the indicator lens is the target test position.

[0122] In step 402 , a power meter collects the power of a standard laser reflected on an indicator lens to obtain first laser energy data; and determines the laser power of the laser according to the first laser energy data.

[0123] Optionally, since the laser equipment power testing device is arranged between the laser and the beam expander, the first laser energy data is the laser power of the laser, that is, the power of the laser that has not been processed by the beam expander.

[0124] Step 403: Place the laser equipment power test device behind the beam expander, re-execute the step of adjusting the height and angle of the reflective component by the adjustment component, and use the power meter to determine the second laser energy data.

[0125] The laser equipment power testing device is arranged after the beam expander, so the second laser energy data is the laser power of the laser after passing through the beam expander.

[0126] Step 404 : Obtain laser loss data of the beam expander according to the first laser energy data and the second laser energy data.

[0127] The laser loss data of the beam expander can be obtained based on the laser power before and after the laser passes through the beam expander.

[0128] Optionally, obtaining laser loss data of the beam expander according to the first laser energy data and the second laser energy data includes:

[0129] Calculate the difference between the first laser energy data and the second laser energy data, and use the difference as the laser loss data of the collimator. That is, the difference between the laser power before the laser passes through the collimator and the laser power after the laser passes through the collimator is the laser loss data of the collimator.

[0130] Optionally, the above test method can also be used to test the laser loss data of other optical lenses in laser equipment.

[0131] The embodiment of the present invention adopts a laser device power testing method, adopts the laser device power testing device provided by the above embodiment, and uses a micro stepping motor to perform multi-angle adjustment to avoid human influence on the components in the laser device; in the laser device, the laser is adjacent to the first lens of the collimator, and in the existing laser power testing method, it is necessary to move the collimator for measurement, while in the laser device power testing method, only the laser device power testing device needs to be moved, and there is no need to move the collimator. Since the laser device power testing device is moved, the position of the components in the laser device is not changed, and the laser device power testing device used is small and flexible, easy to move and place, and can also avoid displacement of the laser device during movement, affecting the laser route of the laser device during actual use. Therefore, it can be ensured that the original optical path of the laser device during actual use will not be offset, and the optical path of the laser device needs to be re-adjusted and calibrated after the test is completed, so as to measure the laser power and laser loss data of the collimator quickly, accurately and without influence.

[0132] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0133] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A laser equipment power test device, characterized in that: include: Base, adjustment assembly, reflection assembly, probe holder assembly, total reflection lens, indicator lens and power meter; The adjustment component is arranged under the base, and is used to support the base and adjust the height and angle of the base; The reflective component is fixedly arranged on the base and changes with the height and angle of the base; The probe support assembly is fixedly arranged on the reflective assembly and changes with the height and angle of the reflective assembly; The fully reflective lens is installed in the reflective assembly, the indicator lens is located on the probe support assembly, and the power meter is arranged above the indicator lens; When the laser emitted by the laser device irradiates the total reflection lens, it is reflected onto the indicator lens, and the power meter measures the power of the laser on the indicator lens; The adjustment assembly includes: a first motor, a second motor, a first screw rod, a second screw rod, a third screw rod, a first screw rod slider, a second screw rod slider, a third screw rod slider, a first coupling, a second coupling, a third coupling, a gear, a ratchet, a third rotating shaft, a connecting rod and a belt; One end of the first screw rod is connected to the first rotating shaft of the first motor through the first coupling, and rotates with the rotation of the first rotating shaft of the first motor; the first screw rod slider is provided on the first screw rod, and slides up and down on the first screw rod as the first screw rod rotates; One end of the second screw is connected to the second rotating shaft of the second motor through the second coupling, and rotates with the rotation of the second rotating shaft of the second motor; the second screw slider is provided on the second screw, and slides up and down on the second screw as the second screw rotates; One end of the third screw is connected to the third rotating shaft through the third coupling and rotates with the rotation of the third rotating shaft; the third screw slider is provided on the third screw and slides up and down on the third screw as the third screw rotates; The gear is arranged on the first rotating shaft of the first motor; the ratchet is arranged on the third rotating shaft, and the gear and the ratchet are driven by the belt; The first screw slider, the second screw slider and the third screw slider are respectively provided with connecting rods, and are connected to the base through corresponding connecting rods.

2. The laser equipment power test device according to claim 1, characterized in that: The adjustment assembly further comprises: an eccentric wheel and a shift rod; The eccentric wheel is arranged on the second rotating shaft of the second motor, and the eccentric wheel and the ratchet wheel are driven by the shifting rod.

3. The laser equipment power test device according to claim 2, characterized in that: The first motor and the second motor are both micro stepping motors; The shifting rod is an elastic shifting rod.

4. The laser equipment power test device according to claim 2 or 3, characterized in that: The base includes a support tube and a bottom plate; One end of the support tube is fixed on the bottom film, and the other end of the support tube is connected to the reflective assembly; A plurality of fixing holes are provided on the bottom plate, and each fixing hole is connected to a corresponding screw slider through a corresponding connecting rod.

5. The laser equipment power test device according to claim 4, characterized in that: The reflection assembly includes a reflection frame and a support rod; One end of the support rod is fixed to the lower surface of the reflector frame for supporting the reflector frame; the other end of the support rod is sleeved into the other end of the support tube of the base, and a top screw is provided to adjust the length of the other end of the support rod sleeved into the other end of the support tube of the base by the top screw; The reflector frame includes a box body and an inclined support plate, wherein the box body is composed of three connected side surfaces and a bottom surface, the inclined support plate is arranged in the box body, and the top end of the inclined support plate is connected to the rear side surface of the box body, and the bottom end of the inclined support plate is connected to the bottom surface of the box body; The inclined support plate is provided with a groove for fixing the total reflection lens.

6. The laser equipment power test device according to claim 5, characterized in that: The probe support assembly includes: a plurality of support rods and a tray; One end of the plurality of support rods is connected to the bottom surface of the tray to support the tray; The other ends of the plurality of support rods are connected to the top surface of the reflection frame of the reflection assembly.

7. A laser equipment power testing method, characterized in that: The laser device power test device according to any one of claims 1 to 6 is used, and a laser and a beam expander are also used, wherein the laser, the beam expander, and the reflector are at the same height. The laser device power test method includes: The adjustment component is used to adjust the height of the reflective component when the laser equipment power test device is arranged between the laser and the beam expander, so that the test laser of the laser is reflected on the indicator lens through the total reflection lens; and after the standard laser of the laser is stable, adjust the height and angle of the reflective component to ensure that the standard laser is reflected on the target test position of the indicator lens through the total reflection lens; The power meter collects the power of the standard laser reflected on the indicator lens to obtain first laser energy data; and determines the laser power of the laser according to the first laser energy data; The adjustment component is used to re-execute the adjustment steps of the height and angle of the reflective component by the adjustment component when the laser equipment power testing device is located behind the collimator, and the power meter determines the second laser energy data; and obtains the laser loss data of the collimator based on the first laser energy data and the second laser energy data.

8. The laser device power testing method according to claim 7, characterized in that: Set the initial positions of the first screw rod slider, the second screw rod slider and the third screw rod slider to the lowest point or the highest point of the corresponding screw rod; The adjusting the height and angle of the reflective assembly to ensure that the standard laser is reflected by the total reflective lens at the target test position of the indicator lens comprises: The first motor and the second motor are started simultaneously, driving the first screw slider, the second screw slider, and the third screw slider to slide once between the lowest point and the highest point of the corresponding screw, and the first motor and the second motor are turned off; the power meter records the power value of the slider during the sliding, and determines that the maximum power value is a first target value; the first motor and the second motor are started simultaneously and turned off when the power meter displays the first target value, and the current position of the third screw slider is determined to be the target position of the third screw slider; The second motor is started, driving the second screw slider to slide once between the lowest point and the highest point of the second screw, and the second motor is turned off; the power meter records the power value of the second screw slider during sliding, and determines the maximum power value as the second target value; the second motor is started and turned off when the power meter displays the second target value, and the current position of the second screw slider is determined to be the target position of the second screw slider; The second motor is started, the eccentric wheel rotates, and the ratchet is disengaged through the shifting rod, the rotation direction of the ratchet is changed, and the second motor is turned off; the first motor is started, and the first screw slider is driven to slide once between the lowest point and the highest point of the first screw, and the first motor is turned off. The power meter records the power value of the first screw slider during the sliding, and determines that the maximum power value is a third target value; the first motor is started and turned off when the power meter displays the third target value, and the current position of the first screw slider is determined to be the target position of the first screw slider; The position where the standard laser is reflected on the indicator lens by the total reflection lens is the target test position.

9. The laser device power testing method according to claim 8, characterized in that: The obtaining, according to the first laser energy data and the second laser energy data, laser loss data of the beam expander includes: The difference between the first laser energy data and the second laser energy data is calculated, and the difference is used as the laser loss data of the beam expander.

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