Device for installing and adjusting optical device

Abstract

The utility model discloses a device for installing and adjusting an optical device. The device for installing and adjusting the optical device comprises a lens barrel assembly and a lens adjusting assembly, wherein the lens barrel assembly comprises an optical sleeve and at least two lenses installed on the optical sleeve, and the at least two lenses are combined to form a magnifying lens group; the adjusting base comprises a multi-dimensional adjusting mirror bracket and an adjusting sliding table, the multi-dimensional adjusting mirror bracket is installed on the adjusting sliding table, the multi-dimensional adjusting mirror bracket is connected with the optical sleeve and used for adjusting the angle of the lens cone assembly, and the adjusting sliding table is used for adjusting the displacement of the lens cone assembly in the X-axis direction and the Y-axis direction; and the light spot detection camera is arranged towards one end, for emitting the light beams, of the optical sleeve and is used for receiving the light beams emitted from the optical sleeve. By means of the mode, the device for installing and adjusting the optical device can have the pose and morphology of the light spots, whether current debugging is proper or not can be visually reflected in real time during debugging, and it can be ensured that the debugged laser processing device outputs the light spots with high quality and good consistency.

Description

Technical Field

[0001] The present application relates to the field of laser processing technology, and in particular to a device for installing and adjusting optical devices. Background Art

[0002] like Figure 1 As shown, in the laser processing device, the laser beam emitted by the laser 1 passes through the first lens 2, the second lens 3 and the focusing mirror 4 to obtain a Bessel-Gaussian spot. Currently, the obtained Bessel-Gaussian spot is basically determined by naked eye observation and empirical judgment. When adjusting the Bessel-Gaussian spot, the debugging method is also to first adjust the basic optical path between the laser 1 and the first lens 2, and then adjust the spacing and deflection of the first lens 2, the second lens 3 and the focusing mirror 4.

[0003] However, it is difficult to maintain the reliability and consistency of the debugging quality by relying solely on the engineer's naked eyes and experience to debug the Bessel-Gaussian spot, and the debugging efficiency is extremely low. Utility Model Content

[0004] The present application mainly provides a device for installing and adjusting optical devices to solve the limitations of manual experience-based debugging of Bessel-Gaussian spots.

[0005] To solve the above technical problems, the present application adopts a technical solution: providing a device for installing and adjusting optical devices. The device for installing and adjusting optical devices comprises: a lens barrel assembly, comprising an optical sleeve and at least two lenses mounted on the optical sleeve, wherein the at least two lenses are combined to form a magnifying lens group; an adjustment base, comprising a multi-dimensional adjustment lens frame and an adjustment slide, wherein the multi-dimensional adjustment lens frame is mounted on the adjustment slide, the multi-dimensional adjustment lens frame is connected to the optical sleeve and is used to adjust the angle of the lens barrel assembly in the Y-axis direction and the Z-axis direction, and the adjustment slide is used to adjust the displacement of the lens barrel assembly in the X-axis direction and the Y-axis direction; wherein the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other, and the Y-axis direction is the direction in which the light beam enters the lens barrel assembly; and a light spot detection camera, arranged toward one end of the optical sleeve from which the light beam emerges, and is used to receive the light beam emerging from the optical sleeve.

[0006] In some embodiments, the at least two lenses include a first lens and a second lens, the first lens and the second lens are respectively mounted on two ends of the optical sleeve, and the optical sleeve is further provided with a first reflector between the first lens and the second lens;

[0007] The light beam enters the optical sleeve through the first lens, is reflected by the first reflector to change the path direction of the light beam, and is then transmitted out of the optical sleeve through the second lens.

[0008] In some embodiments, the optical sleeve comprises a detachable connection of a lens barrel and an adapter barrel, the lens barrel and the adapter barrel are hollow for light beam transmission; the central axis of the lens barrel is perpendicular to the central axis of the adapter barrel;

[0009] The first lens is mounted on the incident end of the adapter barrel, the first mirror is mounted on the reflection inclined surface of the adapter barrel, the first mirror is used for reflecting the light beam transmitted along the Y-axis direction to the X-axis direction, the second lens is mounted on one end of the lens barrel away from the adapter barrel, and the lens barrel is also mounted on the multi-dimensional adjustment frame.

[0010] In some embodiments, the lens barrel assembly further comprises a first base and a first pressing plate, the first base is provided with a first accommodating groove, the first lens is mounted in the first accommodating groove, the first pressing plate is connected with the first base and presses the first lens in the first accommodating groove, and the first base is detachably connected with the incident end of the adapter barrel;

[0011] The lens barrel assembly further comprises a second base and a second pressing plate, the second base is provided with a second accommodating groove, the second lens is mounted in the second accommodating groove, the second pressing plate is connected with the second base and presses the second lens in the second accommodating groove, and the second base is detachably connected with one end of the lens barrel away from the adapter barrel;

[0012] The first base and the first pressing plate are provided with a first through hole coaxial with the first lens, and the second base and the second pressing plate are provided with a second through hole coaxial with the second lens.

[0013] In some embodiments, the lens barrel assembly further comprises a second mirror;

[0014] The side of the first pressing plate away from the first lens is further provided with a third accommodating groove, the first through hole is located at the bottom of the third accommodating groove, the third accommodating groove is used for mounting the second mirror, when the second mirror is mounted in the third accommodating groove, the axis of the first through hole is perpendicular to the mirror surface of the second mirror, the second mirror is used for reflecting the incident light incident to the first lens back to the incident light path for light path detection, and the multi-dimensional adjustment frame adjusts the lens barrel assembly so that the reflected light path formed through the first lens coincides with the incident light path.

[0015] In some embodiments, the multi-dimensional adjustable frame comprises a fastening frame and an adjusting frame, the optical sleeve is fixed on the fastening frame, the fastening frame is connected with the adjusting frame through a plurality of adjusting screws, the plurality of adjusting screws are used for adjusting the angle of the fastening frame relative to the adjusting frame, and the adjusting frame is mounted on the adjusting slide.

[0016] In some embodiments, the adjusting slide comprises a first slide and a second slide arranged on the first slide, the adjusting frame is mounted on the first slide, the first slide is used for adjusting the displacement of the multi-dimensional adjustable frame along the X-axis direction, and the second slide is used for adjusting the displacement of the multi-dimensional adjustable frame along the Y-axis direction.

[0017] In some embodiments, the device for mounting and adjusting optical devices further comprises a back plate, the adjusting base further comprises a mounting plate, the second slide is mounted on the mounting plate, the mounting plate is provided with a sliding groove, and the mounting plate is fixed on the back plate through a first fastener, wherein the first fastener is connected with the sliding groove, and the sliding groove allows the position of the mounting plate to be adjusted along the Y-axis direction before the first fastener is locked.

[0018] In some embodiments, the device for mounting and adjusting optical devices further comprises an attenuation piece arranged on the light path between the spot detection camera and one end of the outgoing light beam of the optical sleeve.

[0019] In some embodiments, the device for mounting and adjusting optical devices further comprises a back plate, and the adjusting base is mounted on the back plate.

[0020] The device for mounting and adjusting optical devices further comprises a support plate, the spot detection camera and the attenuation piece are mounted on the support plate, wherein the support plate is provided with a strip-shaped hole, the support plate is connected with an adapter plate on the back plate through a second fastener, the second fastener is connected with the strip-shaped hole, and the strip-shaped hole allows the position of the support plate to be adjusted along the Y-axis direction before the second fastener is locked, so that the spot detection camera and the attenuation piece are located on the light path.

[0021] The beneficial effects of the present application are: different from the prior art, the present application discloses a device for installing and adjusting optical devices. By adopting a lens barrel assembly to magnify the incident light beam and emit it to a spot detection camera, the spot detection camera can realize a Gaussian spot, wherein the adjusting base is used to fine-tune the attitude of the lens barrel assembly, so that the input light beam coincides with the optical axis of the lens on the lens barrel assembly, so that when each optical device on the optical path of the laser is subsequently installed and debugged, the installation accuracy of each optical device can be confirmed by observing the spot pose and appearance realized on the spot detection camera, and when debugging, it can also intuitively and quickly reflect whether the current debugging is appropriate, so that the position and shape of the Gaussian spot on the spot detection camera remain consistent, that is, it can ensure that the laser processing device outputs a high-quality and consistent spot. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor, wherein:

[0023] Figure 1 is a schematic diagram of the optical path structure in the prior art laser processing device;

[0024] Figure 2 is a schematic diagram of the structure of an embodiment of the device for installing and adjusting optical devices provided by the present application;

[0025] Figure 3 is Figure 2 is a schematic diagram of the cross-sectional structure of the lens barrel assembly in

[0026] Figure 4 is Figure 3 is a schematic diagram of the exploded structure of the lens barrel assembly shown in

[0027] Figure 5 is Figure 2 is a schematic diagram of the structure of the adjusting base in

[0028] Figure 6 is Figure 2 is a schematic diagram of the mounting structure of the spot detection camera in DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0030] The terms "first", "second", "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0031] In this document, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] Laser processing devices are often used for cutting or punching, etc., and the quality of their light spots can greatly affect the processing quality. Therefore, the quality of their light spots needs to be debugged before laser processing. Currently, there is a lack of quantitative tools to support engineers to adjust the optical path and optical devices on the optical path, so that the debugging lacks efficiency, and the experience of different engineers is different, resulting in that the quality of each light spot obtained by debugging cannot maintain consistency.

[0033] Based on this, the present application provides a device 100 for installing and adjusting optical devices, referring to Figure 2 and Figure 3 , Figure 2 is a structural schematic diagram of an embodiment of the device for installing and adjusting optical devices provided by the present application, Figure 3 is Figure 2 a structural schematic diagram of a lens barrel assembly in

[0034] The device 100 for installing and adjusting an optical device includes a lens barrel assembly 10, an adjustment base 20, and a spot detection camera 30, wherein the lens barrel assembly 10 includes an optical sleeve 12 and at least two lenses mounted on the optical sleeve 12, the at least two lenses being combined to form a magnifying lens group for magnifying an incident light beam; the adjustment base 20 includes a multi-dimensional adjustment lens frame 22 and an adjustment slide 24, the multi-dimensional adjustment lens frame 22 being mounted on the adjustment slide 24, the multi-dimensional adjustment lens frame 22 being connected to the optical sleeve 12 and being used to adjust the angle of the lens barrel assembly 10 in the Y-axis direction and the Z-axis direction, and the adjustment slide 24 being used to adjust the displacement of the lens barrel assembly 10 in the X-axis direction and the Y-axis direction; wherein the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other, and the Y-axis direction is the direction in which the light beam enters the lens barrel assembly; the spot detection camera 30 is arranged toward one end of the optical sleeve 12 from which the light beam emerges, and is used to receive the light beam emerging from the optical sleeve 12.

[0035] The device 100 for installing and adjusting optical devices is used to assist in debugging the spot quality of the laser processing device, so that the Gaussian spot of the laser processing device can be realized, and can provide engineers with intuitive feedback during the debugging process, thereby ensuring that the spot quality obtained by each engineer during debugging is consistent and greatly improving the debugging efficiency.

[0036] The number of lenses installed in the optical sleeve 12 can be two, three, four, five or six; for example, the optical sleeve 12 is installed with two lenses, which can achieve primary magnification of the light beam; or, the optical sleeve 12 is installed with three lenses, which can cooperate to achieve secondary magnification of the light beam.

[0037] In this embodiment, the optical sleeve 12 is installed with two lenses, namely the first lens 101 and the second lens 102. The first lens 101 and the second lens 102 are respectively installed at the two ends of the optical sleeve 12. The first lens 101 receives the incident light beam, and the second lens 102 emits the light beam. The first lens 101 and the second lens 102 are used to cooperate to amplify the incident light beam.

[0038] Specifically, the position of the laser 1 in the laser processing device is first fixed. The laser 1 can generate a light beam with high monochromaticity, high directionality and high coherence. The laser 1 emits a light beam to the first lens 101 on the lens barrel assembly 10. The light beam is transmitted in the optical sleeve 12 and emitted through the second lens 102. The first lens 101 and the second lens 102 cooperate to amplify the light beam to form a larger light spot, which is convenient for subsequent viewing after the light spot is realized.

[0039] The light beam emitted by the laser 1 itself is focused, and the size of the light spot formed by the light beam is small and the energy density is large. The light spot directly acting on the light spot detection camera 30 is easy to cause damage to the light spot detection camera 30, and the imaging effect is poor, which is not convenient for engineers to directly observe during debugging. Therefore, the light spot formed after the light beam is enlarged by the lens barrel assembly 10 has an appropriate size and clear appearance, the energy density is reduced, which is more convenient for engineers to observe during debugging, and the risk of damage to the light spot detection camera 30 is reduced.

[0040] The optical sleeve 12 is used to carry the first lens 101 and the second lens 102, and defines an optical path between the first lens 101 and the second lens 102. The first lens 101 and the second lens 102 cooperate to enlarge the light beam output by the laser 1 to form a visible light spot, so that the light spot captured by the light spot detection camera 30 is more convenient for engineers to view during debugging.

[0041] The lens barrel assembly 10 is mounted on the adjustment base 20, and the adjustment base 20 is used to fine-tune the attitude of the lens barrel assembly 10, so that the light beam output by the laser 1 coincides with the optical axis of the first lens 101, and the enlarged light beam output by the lens barrel assembly 10 can irradiate the light spot detection camera 30, so as to form a better and easily observed light spot pattern, thereby ensuring that the position of the Gaussian light spot on the light spot detection camera 30 does not change during subsequent installation and debugging of the first lens 2, the second lens 3 and the focusing mirror 4, so as to ensure that the quality of the light spot formed by the light beam of the laser 1 after passing through the first lens 2, the second lens 3 and the focusing mirror 4 is still reliable and has good consistency. If the position and attitude of the lens or the focusing mirror are not accurate during the debugging process, it will be reflected on the Gaussian light spot on the light spot detection camera 30, which will cause the position and shape of the Gaussian light spot to change. By adjusting the position and attitude of the lens or the focusing mirror, the position and shape of the Gaussian light spot on the light spot detection camera 30 are always consistent, which can ensure that the laser processing device outputs a high-quality and consistent light spot.

[0042] For reference Figure 2 and Figure 4 wherein Figure 5 is Figure 2 a structural schematic view of the adjustment base.

[0043] The multi-dimensional adjustment lens holder 22 is used to adjust the angle of the lens barrel assembly 10, and the sliding table 24 can be used to adjust the displacement of the lens barrel assembly 10 along the X-axis direction and the Y-axis direction, and the X-axis direction and the Y-axis direction are perpendicular to each other. In this embodiment, the Y-axis direction is the direction of the light beam emitted by the laser 1, and the X-axis direction is perpendicular to the direction of the light beam.

[0044] The multi-dimensional adjusting frame 22 adjusts the angle of the lens barrel assembly 10 so that the surface of the first lens 101 is perpendicular to the light beam emitted by the laser 1, and the adjusting slide 24 enables the light beam to be incident from a specific position on the first lens 101, for example, from the center of the first lens 101 to coincide with the optical axis of the first lens 101, so as to facilitate the subsequent alignment of the spot detection camera 30 and the second lens 102.

[0045] Generally, the center of the spot detection camera 30 needs to be adjusted to be aligned with the central axis of the second lens 102, so that the Gaussian spot is located at the center of the spot detection camera 30, facilitating the subsequent adjustment of each optical device in the optical path of the laser 1.

[0046] In the embodiment, as shown in Figure 2 The adjusting base 20 and the spot detection camera 30 are both supported by the back plate 40, and the back plate 40, together with the lens barrel assembly 10, the adjusting base 20 and the spot detection camera 30, can constitute the device 100 for mounting and adjusting optical devices.

[0047] Alternatively, the back plate 40 is provided by an external debugging workbench or base, and the adjusting base 20 and the spot detection camera 30 are mounted on the debugging workbench or base to constitute the device 100 for mounting and adjusting optical devices.

[0048] The present application uses the lens barrel assembly 10 to magnify the incident light beam and emit it to the spot detection camera 30, so that the spot detection camera 30 can realize the Gaussian spot, wherein the adjusting base 20 is used to fine-tune the posture of the lens barrel assembly 10 so that the input light beam coincides with the optical axis of the first lens 101, so that when each optical device in the optical path of the laser is subsequently mounted and debugged, the installation accuracy of each optical device can be confirmed by observing the position and appearance of the spot realized on the spot detection camera 30, and when debugging, it can also intuitively and quickly reflect whether the current debugging is appropriate, so that the position and appearance of the Gaussian spot on the spot detection camera 30 remain consistent, that is, the output spot of the laser processing device can be ensured to be of high quality and good consistency.

[0049] In the embodiment, two lenses are used to magnify the input light beam, that is, the first lens 101 and the second lens 102 are used for magnification.

[0050] Alternatively, three, four or five lenses can be mounted on the lens barrel assembly 10, that is, a third lens, a fourth lens or a fifth lens can be arranged between the first lens 101 and the second lens 102 for multi-stage magnification.

[0051] Alternatively, the first lens 101 and the second lens 102 can be coaxially arranged.

[0052] In the embodiment, as shown inFigure 3 As shown in the figure, the lens barrel assembly 10 further comprises a first mirror 103, which is mounted on the optical sleeve 12 and located on the light path between the first lens 101 and the second lens 102. Wherein, the light beam enters the optical sleeve 12 through the first lens 101, changes the path direction of the light beam after being reflected by the first mirror 103, and then transmits out of the optical sleeve 12 through the second lens 102.

[0053] The first mirror 103 is used to change the light path between the first lens 101 and the second lens 102, which can relatively reduce the distribution size of the lens barrel assembly 10, so that the space required when applying the device 100 for installing and adjusting optical devices is smaller, thereby facilitating the installation of the device 100 for installing and adjusting optical devices.

[0054] In this embodiment, the first mirror 103 is a 45° mirror, which rotates the transmission direction of the light beam by 90°, as shown in the figure, which can reflect the light beam incident in the vertical direction (Y-axis direction) to the transmission along the horizontal direction (X-axis direction), thereby reducing the installation space of the device 100 for installing and adjusting optical devices. Figure 2

[0055] Referring to Figure 3 and Figure 4 , wherein Figure 4 is Figure 3 the exploded structural diagram of the lens barrel assembly.

[0056] Specifically, the optical sleeve 12 comprises a detachable connecting lens barrel 122 and an adapter barrel 124, and the lens barrel 122 and the adapter barrel 124 are hollow for light beam transmission; wherein the central axis of the lens barrel 12 is perpendicular to the central axis of the adapter barrel 124, and the 90° adapter is achieved by being connected; wherein the first lens 101 is mounted on the incident end of the adapter barrel 124, the first mirror 103 is mounted on the reflection inclined surface of the adapter barrel 124, the first mirror 101 is used to reflect the light beam transmitted along the Y-axis direction to the X-axis direction perpendicular to the Y-axis direction, the second lens 102 is mounted on one end of the lens barrel 122 away from the adapter barrel 124, and the lens barrel 122 is further mounted on the multi-dimensional adjusting lens holder 22.

[0057] The lens barrel 122 is in a cylindrical structure, which can be in a stepped cylindrical or straight cylindrical structure, one end of the lens barrel 122 can be provided with a boss, and the corresponding end of the adapter barrel 124 is provided with a groove, the boss of the lens barrel 122 is matched with the groove of the adapter barrel 124 and fastened by using a fastener.

[0058] Alternatively, the adapter barrel 124 and the lens barrel 122 can also be connected by using threads.

[0059] ​The reflecting inclined surface of the adapter tube 124 is provided with a reflector mounting groove, and the reflector mounting groove is provided with a reflective window. The first reflector 103 is installed in the reflector mounting groove and fastened by the cover plate 132. The reflecting surface of the first reflector 103 passes through the reflective window to change the transmission direction of the light beam in the optical sleeve 12.

[0060] See also Figures 2 to 4 The light beam is transmitted along the Y-axis direction in the adapter tube 124, and enters the lens barrel 122 after being reflected by the first reflector 103 and is transmitted along the X-axis direction. The laser 1 is located above the first lens 101, so that the spot detection camera 30, the lens barrel assembly 10, and the adjustment base 20 can be distributed along the X-axis direction, which can reduce the requirements for installation space.

[0061] The lens barrel assembly 10 includes a first base 142 and a first pressure plate 144. The first base 142 is provided with a first receiving groove 143. The first lens 101 is installed in the first receiving groove 143. The first pressure plate 144 is connected to the first base 142 and presses the first lens 101 tightly in the first receiving groove 143. The first base 142 is detachably connected to the incident end of the adapter tube 124. The lens barrel assembly 10 also includes a second base 162 and a second pressure plate 164. The second base 162 is provided with a second receiving groove 163. The second lens 102 is installed in In the second accommodating groove 163, the second pressure plate 164 is connected to the second base 162 and presses the second lens 102 in the second accommodating groove 163, and the second base 162 is detachably connected to the end of the lens barrel 122 away from the adapter tube 124; wherein, the first base 142 and the first pressure plate 144 are both provided with a first through hole 145 coaxial with the first lens 101, and the second base 162 and the second pressure plate 164 are both provided with a second through hole 165 coaxial with the second lens 102, and the diameter of the second through hole 165 is larger than the diameter of the first through hole 145.

[0062] The first base 142 can be connected to the incident end of the adapter tube 124 by screws, and the first pressure plate 144 can be screwed to the first base 142 and the inner wall of the first receiving groove 143, and can press the first lens 101, wherein the light beam can pass through the first through hole 145 to enter the first lens 101 and enter the adapter tube 124, and reach the first reflector 103.

[0063] The second base 162 is sleeved on one end of the lens barrel 122 and connected with screws. The second lens 102 is accommodated in the second accommodating groove 163. The second pressure plate 164 can be screwed to the inner wall surface of the second accommodating groove 163 and press the second lens 102. The second through hole 165 is set to a larger size to facilitate the emission of the amplified light beam.

[0064] The diameter of the first through hole 145 is set to be small to limit the incident position of the light beam, so that the light beam is substantially coaxial with the optical axis of the first lens 101, so that the light beam exiting is also coaxial with the second lens 102, and then the light spot appearing on the light spot detection camera 30 is also located at the interface center, thereby facilitating the determination of the light spot position, thereby facilitating the debugging.

[0065] In the embodiment, the lens barrel assembly 10 further comprises a second mirror (not shown); the first pressing plate 144 is further provided with a third accommodating groove 146 on the side away from the first lens 101, and the first through hole 145 is located at the bottom of the third accommodating groove 146, and the third accommodating groove 146 is used for mounting the second mirror, and when the second mirror is mounted in the third accommodating groove 146, the axis of the first through hole 145 is perpendicular to the mirror surface of the second mirror, and the second mirror is used for reflecting the incident light incident to the first lens 101 back to the incident light path to perform light path detection, and the multi-dimensional adjusting lens holder 22 adjusts the lens barrel assembly 10 to make the reflected light path formed by the second mirror coincide with the incident light path. The incident light path is the incident light path of the light beam from the laser 1 to the first lens 101, and the coincidence of the reflected light path and the incident light path can indicate that the incident light path is perpendicular to the mirror surface of the second mirror, i.e., the incident light path is perpendicular to the mirror surface of the first lens 101.

[0066] By providing the second mirror on the first pressing plate 144, the angle of the lens barrel assembly 10 can be adjusted to make the incident light beam perpendicular to the mirror surface of the first lens 101, so that the incident light beam can be transmitted along the preset path in the lens barrel assembly 10, thereby obtaining a stable and reliable light spot pattern.

[0067] Specifically, the second mirror is a 180° mirror, so that the light beam emitted by the laser 1 coincides with the light beam formed by the reflection of the second mirror as a debugging standard, thereby guiding the adjustment of the multi-dimensional adjusting lens holder 22 to adjust the angle of the lens barrel assembly 10.

[0068] In the embodiment, as shown in Figure 5 The multi-dimensional adjusting lens holder 22 comprises a fastening frame 222 and an adjusting frame 224, the optical sleeve 12 is fixed on the fastening frame 222, the fastening frame 222 is connected with the adjusting frame 224 through a plurality of adjusting screws 225, the plurality of adjusting screws 225 are used for adjusting the angle of the fastening frame 222 relative to the adjusting frame 224, and the adjusting frame 224 is installed on the adjusting sliding table 24.

[0069] The lens barrel 122 is penetrated through the fastening frame 222 and is fixed by the fastening member on the fastening frame 222.

[0070] Wherein, the angle of the adjusting frame 224 relative to the fastening frame 222 is adjusted by adjusting the screwing length of the plurality of adjusting screws 225, so as to adjust the posture of the lens barrel assembly 10, so that the light beam reflected by the second mirror thereon coincides with the light beam emitted by the laser 1, and the adjustment is ended after the coincidence.

[0071] In the embodiment, the adjusting slide 24 can adjust the position of the lens barrel assembly 10 in two perpendicular directions. Wherein, the adjusting slide 24 comprises a first slide 241 and a second slide 242 arranged on the first slide 241, and the adjusting frame 224 is mounted on the first slide 241.

[0072] In the embodiment, the first slide 241 adjusts the displacement of the multi-dimensional adjusting mirror frame 22 along the X-axis direction, and the second slide 242 adjusts the displacement of the multi-dimensional adjusting mirror frame 22 along the Y-axis direction, so as to accurately enter the light beam emitted by the laser 1 into the first through hole 145 to pass through the first lens 101, and to make the focal depth of the laser beam within the Bessel-Gauss beam focal depth range, through fine adjustment along the X-axis direction and the Y-axis direction.

[0073] The adjusting base 20 further comprises a mounting bottom plate 26, the second slide 242 is mounted on the mounting bottom plate 26, the mounting bottom plate 26 is provided with a sliding groove 260, and the mounting bottom plate 26 is fixed to the back plate 40 by a first fastener, wherein the first fastener is connected to the sliding groove 260, and the sliding groove 260 allows the position of the mounting bottom plate 26 to be coarsely adjusted in the vertical direction (Y-axis direction) before the first fastener is locked, so that the second lens 102 mounted on the optical sleeve 12 is roughly aligned with the spot detection camera 30, and then the mounting bottom plate 26 is fastened to the back plate 40, and the angle of the lens barrel assembly 10 is adjusted by the multi-dimensional adjusting mirror frame 22, and the position of the lens barrel assembly 10 is finely adjusted by the adjusting slide 24.

[0074] The mounting bottom plate 26 comprises at least two sliding grooves 260 arranged on both sides of the adjusting slide 24 along the X-axis direction, and is fastened to the back plate 40 by the front and rear sliding grooves 260.

[0075] For reference Figure 2 and Figure 6 Wherein Figure 6 is Figure 2 the mounting structure diagram of the spot detection camera.

[0076] The device 100 for mounting the adjusting optical device further comprises an attenuation piece 32 arranged on the optical path between the spot detection camera 30 and one end of the light beam emitted by the optical sleeve 12, and the number of the attenuation piece 32 can be one, two or three, etc. The attenuation piece 32 reduces the intensity of the light beam by absorbing or reflecting part of the incident light, so as to achieve the required spot intensity of the spot detection camera 30, and avoid damaging the spot detection camera 30 by the light beam.

[0077] In the embodiment, the device 100 for installing and adjusting optical devices further comprises a support plate 34, the spot detection camera 30 and the attenuating sheet 32 are mounted on the support plate 34, wherein the support plate 34 is provided with a strip-shaped hole 340, the support plate 340 is connected to the adapter plate 42 on the back plate 40 through a second fastener, the second fastener is connected to the strip-shaped hole 340, and before the second fastener is locked, the position of the support plate 34 is allowed to be coarsely adjusted in the direction defined by the strip-shaped hole 340, so that the spot detection camera 30 and the attenuating sheet 32 are both located on the optical path.

[0078] The specific debugging process of the spot is as follows: the basic light path emitted by the laser 1 is adjusted to be perpendicular to the machining plane, then the device 100 for installing and adjusting optical devices is installed, the second reflecting mirror is arranged on the first pressing plate 144, the multi-dimensional adjusting mirror holder 22 and the first sliding table 241 are adjusted according to the offset degree between the reflected light beam of the second reflecting mirror and the basic light path, so that the angle of the lens barrel assembly 10 and the displacement of the lens barrel assembly 10 in the X-axis direction are adjusted, so that the reflected light beam and the basic light path coincide, that is, the basic light path is perpendicular to the first lens 101 and can be incident from the first through hole 145; then the second reflecting mirror is removed, the second sliding table 242 is adjusted to adjust the distance between the first lens 101 and the laser 1, so that the focal depth of the laser light beam is located within the focal depth range of the Bessel-Gauss light beam, and then the position of the spot on the spot detection camera 30 is fed back to adjust the support plate 34, so that the spot is located at the center of the field of view of the spot detection camera 30; then the first lens 2 is installed, the installation posture and position of the first lens 2 are adjusted to ensure that the spot on the spot detection camera 30 is still located at the center of the field of view of the camera, wherein whether the spot is located at the center of the field of view of the camera can be accurately judged by the field of view coordinates of the camera; the second lens 3 is continuously installed, the installation posture and position of the second lens 3 are adjusted to ensure that the spot on the spot detection camera 30 is still located at the center of the field of view of the camera; the focusing lens 4 is continuously installed, the installation posture and position of the focusing lens 4 are adjusted to ensure that the spot on the spot detection camera 30 is still located at the center of the field of view of the camera, and the adjustment of the optical path of the laser processing device is completed.

[0079] Different from the prior art, the application discloses a light plate adjusting jig. By adopting the lens barrel assembly to amplify the incident light beam and emit it to the spot detection camera, the spot detection camera can realize a Gaussian spot, wherein the adjusting base is used to finely adjust the posture of the lens barrel assembly, so that the input light beam coincides with the optical axis of the first lens, and when each optical device on the optical path of the laser is installed and debugged in sequence, whether the installation of each optical device is accurate can be confirmed by observing the position and appearance of the spot realized on the spot detection camera, and whether the current debugging is appropriate can also be intuitively and quickly reflected during debugging, so that the position and appearance of the Gaussian spot are always consistent on the spot detection camera, that is, the laser processing device can output a high-quality and consistent spot.

[0080] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. A device for installing and adjusting an optical device, characterized in that: include: A lens barrel assembly, comprising an optical sleeve and at least two lenses mounted on the optical sleeve, wherein the at least two lenses are combined to form a magnifying lens group; An adjustment base, comprising a multi-dimensional adjustment mirror frame and an adjustment slide, wherein the multi-dimensional adjustment mirror frame is mounted on the adjustment slide, the multi-dimensional adjustment mirror frame is connected to the optical sleeve and is used to adjust the angle of the lens barrel assembly in the Y-axis direction and the Z-axis direction, and the adjustment slide is used to adjust the displacement of the lens barrel assembly in the X-axis direction and the Y-axis direction; wherein the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other, and the Y-axis direction is the direction in which the light beam enters the lens barrel assembly; The light spot detection camera is arranged toward one end of the optical sleeve from which the light beam emerges, and is used for receiving the light beam emerging from the optical sleeve.

2. The device for mounting and adjusting an optical component according to claim 1, characterized in that: The at least two lenses include a first lens and a second lens, the first lens and the second lens are respectively mounted on two ends of the optical sleeve, and the optical sleeve is further provided with a first reflector between the first lens and the second lens; The light beam enters the optical sleeve through the first lens, is reflected by the first reflector to change the path direction of the light beam, and then is transmitted out of the optical sleeve through the second lens.

3. The device for mounting and adjusting an optical component according to claim 2, characterized in that: The optical sleeve comprises a detachably connected lens barrel and an adapter barrel, wherein the lens barrel and the adapter barrel are hollow for light beam transmission; wherein the central axis of the lens barrel is perpendicular to the central axis of the adapter barrel; The first lens is installed at the incident end of the adapter tube, the first reflector is installed on the reflective inclined surface of the adapter tube, the first reflector is used to reflect the light beam transmitted along the Y-axis direction to be transmitted along the X-axis direction, the second lens is installed at the end of the lens barrel away from the adapter tube, and the lens barrel is also installed on the multi-dimensional adjustment frame.

4. The device for mounting and adjusting an optical component according to claim 3, characterized in that: The lens barrel assembly further includes a first base and a first pressing plate. The first base is provided with a first receiving groove. The first lens is installed in the first receiving groove. The first pressing plate is connected to the first base and presses the first lens in the first receiving groove. The first base is detachably connected to the incident end of the adapter tube. The lens barrel assembly further includes a second base and a second pressing plate, the second base being provided with a second receiving groove, the second lens being mounted in the second receiving groove, the second pressing plate being connected to the second base and pressing the second lens in the second receiving groove, and the second base being detachably connected to an end of the lens barrel away from the adapter barrel; Wherein, the first base and the first pressing plate are both provided with a first through hole coaxial with the first lens, and the second base and the second pressing plate are both provided with a second through hole coaxial with the second lens.

5. The device for mounting and adjusting an optical component according to claim 4, characterized in that: The lens barrel assembly also includes a second reflecting mirror; A third accommodating groove is further provided on the side of the first pressure plate facing away from the first lens, the first through hole is located at the bottom of the third accommodating groove, and the third accommodating groove is used to install the second reflector. When the second reflector is installed in the third accommodating groove, the axis of the first through hole is perpendicular to the mirror surface of the second reflector, and the second reflector is used to reflect the incident light incident on the first lens back to the incident light path for light path detection. The multi-dimensional adjustment mirror frame adjusts the lens barrel assembly so that the reflected light path formed by the second reflector coincides with the incident light path.

6. The device for mounting and adjusting an optical component according to claim 1, characterized in that: The multi-dimensional adjustment frame includes a fastening frame and an adjustment frame, the optical sleeve is fixed on the fastening frame, the fastening frame and the adjustment frame are connected by a plurality of adjustment screws, the plurality of adjustment screws are used to adjust the angle of the fastening frame relative to the adjustment frame, and the adjustment frame is installed on the adjustment slide.

7. The device for mounting and adjusting an optical component according to claim 6, characterized in that: The adjustment slide includes a first slide and a second slide arranged on the first slide. The adjustment frame is installed on the first slide. The first slide is used to adjust the displacement of the multi-dimensional adjustment frame along the X-axis direction, and the second slide is used to adjust the displacement of the multi-dimensional adjustment frame along the Y-axis direction.

8. The device for mounting and adjusting an optical component according to claim 7, characterized in that: The device for mounting and adjusting the optical device further comprises a back plate; The adjustment base also includes a mounting base, the second slide is mounted on the mounting base, a slide groove is provided on the mounting base, and the mounting base is fixed to the back plate by a first fastener, wherein the first fastener is connected to the slide groove, and before the first fastener is not locked, the slide groove allows the position of the mounting base to be adjusted along the Y-axis direction.

9. The device for installing and adjusting an optical component according to claim 1, characterized in that: The device for installing and adjusting the optical component further comprises an attenuation plate arranged on the optical path between the light spot detection camera and one end of the optical tube output light beam.

10. The device for mounting and adjusting an optical component according to claim 9, characterized in that: The device for mounting and adjusting the optical device further comprises a back plate, and the adjustment base is mounted on the back plate; The device for mounting and adjusting the optical device also includes a support plate, and the spot detection camera and the attenuation plate are both mounted on the support plate, wherein a strip hole is provided on the support plate, and the support plate is connected to the adapter plate on the back plate via a second fastener, and the second fastener is connected to the strip hole, and before the second fastener is locked, the strip hole allows the position of the support plate to be adjusted along the Y-axis direction, so that the spot detection camera and the attenuation plate are both located on the optical path.

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