Laser spot adjusting device

Abstract

The utility model discloses a laser spot adjusting device. The laser spot adjusting device comprises a lens group switching mechanism and a slit adjusting mechanism which are arranged along a laser light path, at least two shaping lenses are arranged on the lens group switching mechanism, and the switching of different shaping lenses is realized through the lens group switching mechanism, so that the laser is preliminarily shaped; the slit adjusting mechanism comprises at least two light barriers, a light hole is formed between the light barriers, and adjusting parts for controlling the light barriers to move transversely, vertically and rotationally are arranged corresponding to the light barriers and used for adjusting the shape and the size of the light hole so as to adjust the shape and the size of the laser spot. According to the utility model, the laser can be preliminarily shaped through the shaping lens of the lens group switching mechanism, and the size and the shape of the obtained laser spot can be further ensured to meet the requirements through the arrangement of the slit adjusting mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser processing, and particularly relates to a laser spot adjusting device. Background Art

[0002] During the laser processing, for different products or processes, the required sizes, shapes, etc. of the laser spots are different. Therefore, before the laser spot acts on the product, it is necessary to adjust the laser spot to obtain a laser spot that meets the requirements.

[0003] In order to quickly adjust the laser spot, multiple shaping lenses are often arranged in the optical path, and the shaping lenses are switched by means of automatic horizontal switching or a combination of automatic and manual rotational switching, that is, the corresponding shaping lens is switched into the optical path according to the need, so that the laser beam can pass through the shaping lens for shaping. For the automatic horizontal switching method, a linear motor is often used as the driving power, which increases the cost and the required space, and the combination of automatic and manual rotational switching is not conducive to the multi-dimensional adjustment of a single shaping lens due to space limitations.

[0004] And in some cases, the laser spot shaped by the shaping lens needs to be further adjusted so that the finally obtained spot size and shape meet the requirements. Summary of the Utility Model

[0005] In view of one or more of the above-mentioned defects or improvement requirements of the prior art, the utility model provides a laser spot adjusting device, which preliminarily shapes the laser through the shaping lens of the lens group switching mechanism, and further ensures that the size and shape of the obtained laser spot meet the requirements through the setting of the slit adjusting mechanism.

[0006] To achieve the above object, the utility model provides a laser spot adjusting device, which includes a lens group switching mechanism and a slit adjusting mechanism arranged along the laser optical path;

[0007] At least two shaping lenses are arranged on the lens group switching mechanism, and different shaping lenses are switched through the lens group switching mechanism for preliminarily shaping the laser;

[0008] The lens group switching mechanism includes a linear guide rail, a positioning slide plate and a pull rod;

[0009] The length direction of the linear guide rail is perpendicular to the laser optical path, the positioning slide plate is installed on the linear guide rail and can slide along it, and in the length direction of the linear guide rail, one end of the positioning slide plate is fixedly connected to one end of the pull rod; the shaping lenses are sequentially installed on the positioning slide plate along the length direction of the linear guide rail;

[0010] The pull rod is provided with a plurality of positioning grooves along its length direction, the number of the positioning grooves being consistent with the number of the plastic surgery lenses, and a positioning piece is provided corresponding to the pull rod, and when the positioning piece is clamped in the corresponding positioning groove, the corresponding plastic surgery lens is exactly located on the laser light path;

[0011] The slit adjustment mechanism includes at least two light blocking plates, a light transmission hole is formed between the light blocking plates, and corresponding light blocking plates are respectively provided with adjustment members for controlling their lateral, vertical and rotational movements, which are used to adjust the shape and size of the light transmission hole to adjust the shape and size of the laser spot.

[0012] As a further improvement of the present invention, a positioning mechanism is provided on one side of the mirror group switching mechanism, and the positioning mechanism includes a guide rail slider assembly arranged along the direction of the laser light path, and the guide rail slider assembly includes a guide rail and a slider arranged on the guide rail and able to slide along the guide rail, a positioning protrusion is provided at one end of the slider close to the mirror group switching mechanism, and a corresponding positioning groove is provided on the positioning slider.

[0013] As a further improvement of the present invention, the lens group switching mechanism includes a plurality of multi-dimensional adjustment frames, the plastic surgery lens is mounted on the corresponding multi-dimensional adjustment frame through a lens fixing frame, and the multi-dimensional adjustment frame is mounted on the positioning slide plate, and along the direction of the laser light path, the top, side and back of the multi-dimensional adjustment frame are provided with corresponding adjustment knobs, and the adjustment knobs are all connected to the lens fixing frame;

[0014] The bottom of the multi-dimensional adjustment mirror frame is also provided with an adjustment knob connected thereto along the direction of the laser light path.

[0015] As a further improvement of the utility model, the slit adjustment mechanism includes a mounting plate, an adapter plate, a lateral adjustment member, a vertical adjustment member and a rotation adjustment member;

[0016] The light blocking plate is rotatably mounted on the adapter plate by adjusting the rotating shaft; each light blocking plate is correspondingly provided with two rotating adjusting members, and the two rotating adjusting members are respectively connected to two adjacent sides of the light blocking plate;

[0017] The transverse adjustment member and the vertical adjustment member are installed on the mounting plate. The transverse adjustment member is used to drive the adapter plate to move transversely relative to the mounting plate, and the vertical adjustment member is used to drive the adapter plate to move vertically relative to the mounting plate.

[0018] As a further improvement of the present invention, the slit adjustment mechanism includes two light blocking plates, and the light blocking plates are L-shaped. A square light-transmitting hole can be obtained by adjusting the positions of the two light blocking plates.

[0019] As a further improvement of the present utility model, it further includes a bottom plate, the mirror group switching mechanism and the slit adjusting mechanism are installed on the bottom plate, and a housing is provided outside the mirror group switching mechanism and the slit adjusting mechanism, and the housing is installed on the bottom plate, so that the mirror group switching mechanism and the slit adjusting mechanism are both located in a closed space.

[0020] As a further improvement of the present utility model, a part of the pull rod is located outside the housing, and the positioning member is located outside the housing.

[0021] As a further improvement of the present utility model, the housing includes a quick-release door and an insertion plate provided on the side, and a movable door provided on the top;

[0022] The quick-release door is detachably installed on the bottom plate;

[0023] A limiting member is provided at the bottom of the movable door, and a corresponding limiting hole is provided at the top of the quick-release door; the movable door and the quick-release door are positioned through the limiting member and the limiting hole;

[0024] A guiding slot is provided on the insertion plate corresponding to the quick-release door. When the insertion plate is installed on the quick-release door, the quick-release door is clamped in the guiding slot.

[0025] As a further improvement of the present utility model, a magnet is provided at the top of the quick-release door, and a magnet of the opposite sex is provided correspondingly at the bottom of the movable door; and / or,

[0026] A magnet is provided on the bottom plate near the insertion plate, and a magnet of the opposite sex is provided correspondingly at the bottom of the insertion plate.

[0027] Generally speaking, compared with the prior art by the above technical solutions conceived by the present utility model, the following beneficial effects are obtained:

[0028] (1) The laser spot adjusting device of the present utility model includes a mirror group switching mechanism and a slit adjusting mechanism arranged along the laser optical path; the laser beam emitted by the laser passes through the shaping lens of the mirror group switching mechanism for preliminary shaping to obtain a laser spot of the required pattern, and the laser beam then passes through the slit adjusting mechanism to adjust the shape and size of the spot, and finally the laser spot is transmitted out of the laser spot adjusting device to act on the product for processing. The shaping lens of the mirror group switching mechanism can perform preliminary shaping on the laser, and the setting of the slit adjusting mechanism can further ensure that the size and shape of the laser spot meet the requirements.

[0029] (2) The laser spot adjustment device of the present utility model realizes the switching of the shaping lens by setting a positioning groove on the pull rod and cooperating with a positioning member. When the shaping lens is switched back and forth, the switching efficiency is high and the repeated positioning accuracy is high. And after the switching, the position of the shaping lens is fixed by the way that the positioning protrusion is clamped in the positioning groove, which can prevent the position of the shaping lens from shifting during the processing after it reaches the position, further improving the positioning accuracy of the shaping lens.

[0030] (3) The laser spot adjustment device of the present utility model, in combination with the corresponding adjustment knob, can adjust a single shaping lens in multiple dimensions, so that the laser beam can vertically pass through the center of the shaping lens.

[0031] (4) For the laser spot adjustment device of the present utility model, a housing is provided outside the lens group switching mechanism and the slit adjustment mechanism, so that the laser spot adjustment device is in a closed space, avoiding the influence of dust on the optical path. And the design of the housing is convenient for disassembly.

[0032] (5) The laser spot adjustment device of the present utility model has a reasonable structural design, is simple in structure, convenient for debugging and maintenance, and has a relatively low overall cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall internal structure of the laser spot adjustment device according to an embodiment of the present utility model;

[0034] Figure 2 is a schematic diagram of the overall external structure of the laser spot adjustment device according to an embodiment of the present utility model;

[0035] Figure 3 is a schematic diagram of the structure of the lens group switching mechanism involved in the laser spot adjustment device according to an embodiment of the present utility model;

[0036] Figure 4 is a schematic diagram of the structure of the pull rod involved in the laser spot adjustment device according to an embodiment of the present utility model;

[0037] Figure 5 is a schematic diagram of the structure of the positioning mechanism involved in the laser spot adjustment device according to an embodiment of the present utility model;

[0038] Figure 6 is a schematic diagram of the structure of the multi-dimensional adjustment mirror frame involved in the laser spot adjustment device according to an embodiment of the present utility model;

[0039] Figure 7 is a schematic diagram of the structure of the slit adjustment mechanism involved in the laser spot adjustment device according to an embodiment of the present utility model.

[0040] In all the attached drawings, the same reference numerals denote the same technical features, specifically: 1. bottom plate; 2. lens group switching mechanism; 3. slit adjusting mechanism; 4. quick-release door; 5. movable door; 6. insertion plate;

[0041] 21. linear guide rail; 22. positioning slide plate; 23. multi-dimensional adjustment lens holder; 231. first adjustment knob; 232. second adjustment knob; 233. third adjustment knob; 234. fourth adjustment knob; 24. pull rod; 25. positioning groove; 26. positioning part; 27. positioning mechanism; 28. positioning projection; 29. positioning groove; 31. mounting plate; 32. light-shielding plate; 33. rotary adjustment part; 34. lateral adjustment part; 35. vertical adjustment part; 36. adjustment rotary shaft; 37. light-transmitting hole. Detailed implementation manners

[0042] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various implementation manners of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0045] In the present utility model, unless otherwise clearly specified or limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified or limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] As a preferred embodiment of the present utility model, as Figures 1 to 7 shown, the laser spot adjusting device of the present utility model includes a mirror group switching mechanism 2 and a slit adjusting mechanism 3 arranged along the laser optical path; the laser beam emitted by the laser passes through the shaping lens of the mirror group switching mechanism 2 for shaping to obtain a laser spot with the required pattern, and then the laser beam passes through the slit adjusting mechanism 3 to adjust the shape and size of the spot, and finally the laser spot is transmitted out of the laser spot adjusting device and acts on the product.

[0048] Combined with Figure 1 and Figure 3 , the mirror group switching mechanism 2 and the slit adjusting mechanism 3 are installed on the bottom plate 1. The mirror group switching mechanism 2 includes a linear guide rail 21, a positioning slide plate 22, a pull rod 24 and at least two shaping lenses. The length direction of the linear guide rail 21 is perpendicular to the laser optical path, and the linear guide rail 21 is installed on the bottom plate 1. The positioning slide plate 22 is installed on the linear guide rail 21 and can slide along it. And in the length direction of the linear guide rail 21, one end of the positioning slide plate 22 is fixedly connected to one end of the pull rod 24, and a handle is provided at the end of the pull rod 24 away from the positioning slider 22; each shaping lens is sequentially installed on the positioning slide plate 22 along the length direction of the linear guide rail 21. In the specific embodiment shown in the drawings, there are three shaping lenses; by pushing and pulling the pull rod 24, different shaping lenses can be located on the laser optical path to shape the laser.

[0049] A plurality of positioning grooves 25 are provided along the length direction of the pull rod 24. The number of the positioning grooves 25 is the same as the number of the shaping lenses. A positioning member 26 corresponding to the pull rod 24 is provided on the bottom plate 1. When the corresponding positioning groove 25 is located above the positioning member 26, the corresponding shaping lens is exactly located on the laser light path. When it is necessary to switch the lens, the positioning slide plate 22 can be slid on the linear guide 21 by pushing and pulling the pull rod 24. When the corresponding lens reaches the preset position, the corresponding positioning groove 25 is just located above the positioning member 26.

[0050] Further preferably, the positioning member 26 is a locking screw or other locking structure. When the corresponding positioning groove 25 is located above the positioning member 26, by screwing the locking screw to make it engage in the positioning groove 25, the shaping lens can be initially positioned and the movement of the shaping lens caused by accidental touch can be avoided.

[0051] Further preferably, in combination with Figure 3 and Figure 5 , along the laser light path direction, a positioning mechanism 27 is provided at the rear side of the lens group switching mechanism 2. The positioning mechanism 27 includes a guide rail slider assembly arranged along the laser light path direction. The guide rail slider assembly includes a guide rail installed on the bottom plate 1 and a slider arranged on the guide rail and slidable along it. A positioning protrusion 28 is provided at one end of the slider close to the lens group switching mechanism 2. Correspondingly, a positioning groove 29 is formed at the rear side of the positioning slide plate 22. When the corresponding shaping lens reaches the laser light path and the positioning member 26 engages in the corresponding positioning groove 25, the slider of the positioning mechanism 27 is controlled to move along the guide rail so that the positioning protrusion 28 engages in the positioning groove 29, restricting the movement of the positioning slide plate 22, thereby avoiding the situation that the shaping lens deviates after being adjusted in place and playing a further positioning role for the shaping lens.

[0052] In a preferred embodiment, in combination with Figure 3 and Figure 6, the lens group switching mechanism 2 includes a plurality of multi-dimensional adjustment lens mounts 23. The shaping lens is installed on the corresponding multi-dimensional adjustment lens mount 23 through a lens fixing bracket, and the multi-dimensional adjustment lens mount 23 is installed on the positioning slide 22. A first adjustment knob 231 is provided at the top of the multi-dimensional adjustment lens mount 23. The first adjustment knob 231 is connected to the top of the lens fixing bracket. By rotating the first adjustment knob 231, the lens fixing bracket can be moved up and down, so that the shaping lens can be moved up and down; a second adjustment knob 232 is provided on the side of the multi-dimensional adjustment lens mount 23. The second adjustment knob 232 is connected to the side of the lens fixing bracket. By rotating the second adjustment knob 232, the shaping lens can be moved left and right (in the direction perpendicular to the optical path); along the direction of the laser optical path, two third adjustment knobs 233 are provided on the back of the multi-dimensional adjustment lens mount 23. The third adjustment knobs 233 are connected to the back of the lens fixing bracket. By the third adjustment knobs 233, the flatness of the shaping lens can be adjusted (i.e., the adjustment in the θX and θY directions). Further preferably, a fourth adjustment knob 234 connected thereto is also provided at the bottom of the multi-dimensional adjustment lens mount 23. The fourth adjustment knob 234 is arranged along the direction of the laser optical path. By rotating the fourth adjustment knob 234, the entire multi-dimensional adjustment lens mount 23 can be moved back and forth (along the direction of the laser optical path), so that the shaping lens can be moved back and forth. Combining the above adjustment knobs, the shaping lens can be adjusted in five dimensions of XYZ θXθY, so that the laser beam can vertically pass through the center of the shaping lens.

[0053] Further, along the direction of the laser optical path, a slit adjustment mechanism 3 is provided on the bottom plate 1 behind the lens group switching mechanism 2. In a preferred embodiment, as Figure 7 shown, the slit adjustment mechanism 3 includes at least two light blocking plates 32, so as to form a light transmission hole 37 between the light blocking plates 32. Preferably, the slit adjustment mechanism includes two light blocking plates 32. The light blocking plates 32 are L-shaped. By adjusting the positions of the two L-shaped light blocking plates, a square light transmission hole 37 can be obtained. Corresponding adjusting members for controlling the horizontal, vertical and rotational movements of the light blocking plates 32 are respectively provided, which are used to adjust the shape and size of the light transmission hole formed between the two light blocking plates 32. The laser beam shaped by the shaping lens passing through the lens group switching mechanism 2 passes through the light transmission hole and exits to the laser spot adjusting device. At the same time, the light blocking plates 32 can block the excess laser light, and only the laser spot of the required size can pass through the light transmission hole and act on the product.

[0054] Specifically, the slit adjustment mechanism 3 includes a mounting plate 31, an adapter plate, a lateral adjustment member 34, a vertical adjustment member 35, and a rotation adjustment member 33. The adapter plate is disposed on the side of the mounting plate 31 facing the lens group switching mechanism 2. The light shielding plate 32 is rotatably mounted on the adapter plate through an adjustment rotation shaft 36. Two rotation adjustment members 33 are provided corresponding to each light shielding plate 32, and the two rotation adjustment members 33 are respectively connected to the two adjacent sides of the light shielding plate 32. By pushing the corresponding rotation adjustment member 33, the light shielding plate 32 rotates relative to the adapter plate along the adjustment rotation shaft 36, so as to change the angle between the light shielding plates 32, thereby changing the shape of the laser spot, such that the final light transmission hole is a square structure. The lateral adjustment member 34 and the vertical adjustment member 35 are mounted on the mounting plate 31. The lateral adjustment member 34 is used to drive the adapter plate to move laterally relative to the mounting plate 31, and the vertical adjustment member 35 is used to drive the adapter plate to move vertically relative to the mounting plate 31, so as to change the distance between the light shielding plates 32, thereby changing the size of the light transmission hole and further changing the size of the laser spot.

[0055] It should be noted that the specific structures of the rotation adjustment member 33, the lateral adjustment member 34, and the vertical adjustment member 35 are not limited herein. For example, a slider guide rail assembly, a telescopic cylinder, a lead screw structure, etc. can be used to control the lateral and vertical movement of the light shielding plate 32 in a linear movement manner. For the rotation adjustment member 33, as long as it can push the light shielding plate 32 to rotate along the adjustment rotation shaft 36 through expansion and contraction.

[0056] It can be understood that in order to enable the laser beam to pass through the slit adjustment mechanism 3, the mounting plate 31 of the slit adjustment mechanism 3 is provided with a through hole corresponding to the light transmission hole.

[0057] In a preferred embodiment, a housing is provided outside the lens group switching mechanism 2 and the slit adjustment mechanism 3. The housing is mounted on the bottom plate 1, such that both the lens group switching mechanism 2 and the slit adjustment mechanism 3 are located in a closed space, avoiding the influence of dust on the optical path.

[0058] It can be understood that a part of the pull rod 24 is located outside the housing. For example, the end of the pull rod 24 provided with a handle is located outside the housing, so as to realize lens switching by pulling the pull rod 24 when the housing is installed, and the positioning member 26 is also located outside the housing, so that when the corresponding positioning groove 25 is above the positioning member 26, the positioning member 26 can be manually adjusted to be clamped in the positioning groove 25.

[0059] Further preferably, as Figure 2As shown in the figure, the housing includes a quick-release door 4 and a plug board 6 provided on the side, and a movable door 5 provided on the top. The quick-release door 4 is detachably mounted on the bottom plate 1, for example, it can be mounted on the bottom plate 1 by screws or bolts. A limiting member (such as a pin) is provided at the bottom of the movable door 5. Correspondingly, a limiting hole (such as a pin hole) is provided at the top of the quick-release door. When the movable door 5 is mounted on the quick-release door 4, the limiting member is inserted into the limiting hole to limit it. A guiding slot is provided on the plug board 6 corresponding to the quick-release door 4. When the plug board 6 is mounted on the quick-release door 4, the quick-release door 4 is clamped in the guiding slot.

[0060] More preferably, a magnet is provided at the top of the quick-release door 4, and a magnet of the opposite polarity is correspondingly provided at the bottom of the movable door 5. The movable door 5 is adsorbed on the quick-release door 4 by the corresponding magnets of the opposite polarity. More preferably, a magnet is provided on the bottom plate 1 near the plug board 6, and a magnet of the opposite polarity is correspondingly provided at the bottom of the plug board 6. When the plug board 6 is clamped in the guiding slot, the magnetic force generated by the magnets on the bottom plate 1 and the plug board 3 eliminates the slot gap, prevents the device from moving during operation, and forms a sealed space among the bottom plate 1, the quick-release door 4, the movable door 5 and the plug board 6. More preferably, handles are installed on both the quick-release door 4 and the movable door 5 for convenient disassembly.

[0061] In the embodiment shown in the attached drawings, the side of the housing includes three quick-release doors 4 and one plug board 6. Along the direction of the laser optical path, the plug board 6 is located on the front side of the mirror group switching mechanism 2. A through hole for the laser to pass through is provided on the plug board 6, and a through hole is provided on the quick-release door 4 corresponding to the light-transmitting hole behind the slit adjusting mechanism 3.

[0062] The adjustment process of the laser spot adjusting device according to the embodiment of the present invention is as follows:

[0063] The position of the shaping lens mounted on the multi-dimensional adjustment mirror frame 23 is adjusted in five dimensions of X, Y, Z, θX, and θY through the corresponding adjustment knobs, so that the plane of the shaping lens is perpendicular to the laser optical path. After the shaping lens is switched into the laser optical path by the mirror group switching mechanism, the laser beam emitted by the laser can be directly opposite to the center of the shaping lens;

[0064] The angle and size of the light-transmitting hole are adjusted through the rotation adjusting member 33, the lateral adjusting member 34, and the vertical adjusting member 35 of the slit adjusting mechanism 3 to obtain a square light-transmitting hole with the required size;

[0065] Install the housing on the bottom plate 1 so that the laser spot adjusting device is located in a sealed space. Pull the pull rod 24 outside the housing to make the corresponding shaping lens located on the laser light path. Then, initially position it by clamping it in the positioning groove 25 with the positioning member 26 (locking screw). And the guide rail slider assembly of the positioning mechanism 27 makes the positioning protrusion 28 clamped in the positioning groove 29 under the action of the driving mechanism to fix the position of the positioning slide plate 22, preventing the position of the shaping lens from shifting after it reaches the position. The driving mechanism of the guide rail slider assembly can be connected to the control system and its operation can be controlled by the control system.

[0066] After the product is loaded, the laser beam emitted by the laser passes through the lens on the multi-dimensional adjustment mirror frame 23 for shaping to obtain a laser spot with the required pattern. Then, the laser beam transmits the required spot shape and size through the light-transmitting hole of the slit adjusting mechanism 3 and acts on the product after passing through this laser spot adjusting device.

[0067] In the above process, when processing the same product with the same process, there is no need to repeatedly adjust the position of the shaping lens and the shape and size of the light-transmitting hole. If the product is switched or the process changes, then adapt to different products or processes by switching the shaping lens and changing the shape and size of the light-transmitting hole. When it is necessary to adjust the angle and position of the shaping lens and the angle and size of the light-transmitting hole, it is necessary to disassemble and remove the housing for adjustment. Adjust the position of the shaping lens on the multi-dimensional adjustment mirror frame 23 and the angle and size of the light-transmitting hole respectively. After adjustment, reinstall the housing on the bottom plate 1. When it is necessary to switch the shaping lens, only need to push and pull the pull rod 24 located outside the housing. After the shaping lens reaches the position, then fix the position of the positioning slide plate 22 through the positioning mechanism 27.

[0068] Those skilled in the art can easily understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser spot adjusting device, characterized in that, It includes a mirror group switching mechanism and a slit adjustment mechanism arranged along the laser light path; The lens group switching mechanism is provided with at least two shaping lenses, and the lens group switching mechanism is used to switch between different shaping lenses for preliminary shaping of the laser. The mirror group switching mechanism includes a linear guide rail, a positioning slide plate and a pull rod; The length direction of the linear guide is perpendicular to the laser optical path, the positioning slide is installed on the linear guide and can slide along the linear guide, and one end of the positioning slide is fixedly connected to one end of the pull rod in the length direction of the linear guide; the plastic surgery lens is sequentially installed on the positioning slide along the length direction of the linear guide; The pull rod is provided with a plurality of positioning grooves along its length direction, the number of the positioning grooves being consistent with the number of the plastic surgery lenses, and a positioning piece is provided corresponding to the pull rod, and when the positioning piece is clamped in the corresponding positioning groove, the corresponding plastic surgery lens is exactly located on the laser light path; The slit adjustment mechanism includes at least two light blocking plates, a light transmission hole is formed between the light blocking plates, and corresponding light blocking plates are respectively provided with adjustment members for controlling their lateral, vertical and rotational movements, which are used to adjust the shape and size of the light transmission hole to adjust the shape and size of the laser spot.

2. The laser spot adjusting device according to claim 1, wherein A positioning mechanism is provided on one side of the mirror group switching mechanism, and the positioning mechanism includes a guide rail slider assembly arranged along the direction of the laser light path. The guide rail slider assembly includes a guide rail and a slider arranged on the guide rail and slidable along the guide rail. A positioning protrusion is provided at one end of the slider close to the mirror group switching mechanism, and a corresponding positioning groove is provided on the positioning slider.

3. The laser spot adjusting device according to claim 1, wherein The lens group switching mechanism includes a plurality of multi-dimensional adjustment frames, the plastic surgery lens is mounted on the corresponding multi-dimensional adjustment frame through a lens fixing frame, and the multi-dimensional adjustment frame is mounted on the positioning slide plate, along the direction of the laser light path, the top, side and back of the multi-dimensional adjustment frame are provided with corresponding adjustment knobs, and the adjustment knobs are all connected to the lens fixing frame; The bottom of the multi-dimensional adjustment mirror frame is also provided with an adjustment knob connected thereto along the direction of the laser light path.

4. The laser spot adjusting device according to any one of claims 1-3, characterized in that, The slit adjustment mechanism includes a mounting plate, an adapter plate, a lateral adjustment member, a vertical adjustment member and a rotation adjustment member; The light blocking plate is rotatably mounted on the adapter plate by adjusting the rotating shaft; each light blocking plate is correspondingly provided with two rotating adjusting members, and the two rotating adjusting members are respectively connected to two adjacent sides of the light blocking plate; The transverse adjustment member and the vertical adjustment member are installed on the mounting plate. The transverse adjustment member is used to drive the adapter plate to move transversely relative to the mounting plate, and the vertical adjustment member is used to drive the adapter plate to move vertically relative to the mounting plate.

5. The laser spot adjusting device according to any one of claims 1 to 3, characterized in that The slit adjustment mechanism comprises two light blocking plates, which are L-shaped. A square light-transmitting hole can be obtained by adjusting the positions of the two light blocking plates.

6. The laser spot adjusting device according to any one of claims 1-3, characterized in that, It also includes a bottom plate, the mirror group switching mechanism and the slit adjustment mechanism are mounted on the bottom plate, a shell is provided outside the mirror group switching mechanism and the slit adjustment mechanism, and the shell is mounted on the bottom plate, so that the mirror group switching mechanism and the slit adjustment mechanism are both located in a closed space.

7. The laser spot adjusting device according to claim 6, wherein The pull rod portion is located outside the shell, and the positioning member is located outside the shell.

8. The laser spot adjusting device according to claim 6, characterized in that, The housing includes a quick-release door and a plug board provided on the side, and a movable door provided on the top; The quick-release door is detachably mounted on the bottom plate; A limiting member is provided at the bottom of the movable door, and a corresponding limiting hole is provided at the top of the quick-release door; the movable door and the quick-release door are positioned by the limiting member and the limiting hole; A guiding card slot is provided at the plug board corresponding to the quick-release door. When the plug board is mounted on the quick-release door, the quick-release door is clamped in the guiding card slot.

9. The laser spot adjusting device according to claim 8, characterized in that, Magnets are provided at the top of the quick-release door, and corresponding opposite-sex magnets are provided at the bottom of the movable door; and / or Magnets are provided on the bottom plate near the plug board, and corresponding opposite-sex magnets are provided at the bottom of the plug board.

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