Shooting assembly and laser processing device

Abstract

The utility model provides a shooting assembly and a laser processing device. The shooting assembly comprises a light-emitting part, a shooting part and a light path assembly. The light-emitting part emits light beams along a first path, the shooting part is provided with a shooting optical axis, the light path assembly is provided with a reflecting part and an angle adjusting structure, the reflecting part is arranged on the first path to reflect the light beams to form reflected light beams, and the angle adjusting structure is connected with the reflecting part to adjust the reflection angle of the reflected light beams. The reflected light beam is transmitted to the shooting optical axis along the second path. Therefore, when the light emitting part emits the light beam to the emitting part, the angle adjusting structure can continuously adjust the reflection angle of the reflecting part, so that the light beam emitted by the light emitting part can be converged into the shooting optical axis of the shooting part, the illumination requirement of camera shooting is met, the mechanical structure of the shooting assembly is effectively simplified, and the shooting efficiency is improved. The operation space occupied by the shooting assembly is reduced, the precision and miniaturization of the shooting assembly are realized, and the use convenience of an operator is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of camera shooting, specifically, a kind of shooting assembly and laser processing device. BACKGROUND

[0002] In laser processing equipment or visual detection type equipment, camera is often used to photograph the device to be processed or detected, however, the imaging of camera needs certain illumination condition, and the illumination angle of light source directly affects the shooting effect of camera. In actual production process, since there are errors between different devices, the illumination angle of light source needs to be adjusted according to different devices to achieve better imaging environment.

[0003] At present, lighting equipment needs to be set on the front side, back side or side of camera to ensure the shooting effect of camera. However, this method needs large mechanical installation space, and the mechanical structure connection is complex, which is not conducive to the precision and miniaturization of equipment. UTILITY MODEL CONTENT

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a kind of shooting assembly is provided. The shooting assembly includes light emitting piece, shooting piece and light path component. Light emitting piece emits light beam along first path, shooting piece has shooting optical axis, light path component has reflecting piece and angle adjusting structure, reflecting piece is arranged on first path to reflect light beam to form reflected light beam, angle adjusting structure is connected with reflecting piece to adjust the reflection angle of reflected light beam, so that reflected light beam is transmitted to shooting optical axis along second path.

[0005] The shooting assembly of the utility model can continuously adjust the reflection angle of reflecting piece when light emitting piece emits light beam to reflecting piece, so that the light beam emitted by light emitting piece can converge into the shooting optical axis of shooting piece, thereby realizing the illumination requirement of camera shooting. In this way, the mechanical structure of shooting assembly is effectively simplified, the operation space occupied by shooting assembly is reduced, the precision and miniaturization of shooting assembly are realized, and the convenience of operator use is also improved.

[0006] Exemplarily, the angle adjusting structure includes fixed seat and mounting plate, reflecting piece is arranged on mounting plate, and mounting plate is movably connected with fixed seat to adjust the reflection angle of reflected light beam.

[0007] Exemplarily, fixed seat and mounting plate enclose light guide cavity, reflecting piece is located in light guide cavity, and light guide cavity has first part located on first path and second part located on second path.

[0008] Exemplarily, the angle adjusting structure comprises a plurality of adjusting assemblies, the light guide cavity is provided with a fixing member, and the mounting plate is connected with the fixing member through the plurality of adjusting assemblies.

[0009] Exemplarily, the adjusting assembly comprises a positioning member and an adjusting member, the positioning member and the adjusting member are connected with the corresponding fixing member through the mounting plate, the adjusting member is used for rotating to adjust the distance between the mounting plate and the fixing member, and the positioning member is used for limiting the displacement of the mounting plate after the adjusting member is adjusted.

[0010] Exemplarily, one end of the adjusting member abuts against the corresponding fixing member, and the other end of the adjusting member is rotationally connected with the mounting plate, and the adjusting member is used for rotating to drive the mounting plate to move towards the fixing member or away from the fixing member.

[0011] Exemplarily, the plurality of adjusting assemblies are arranged at intervals along the edge of the mounting plate.

[0012] Exemplarily, the fixing seat has a light beam inlet in communication with the light guide cavity, and the first path extends to the first part through the light beam inlet.

[0013] Exemplarily, the fixing seat has a light beam outlet in communication with the light guide cavity, and the reflected light beam extends to the second part through the light beam outlet.

[0014] According to another aspect of the present application, a laser processing device is also provided, which comprises a laser cutting device, a stage and the photographing assembly as described above, and the stage is located below the laser cutting device and the photographing assembly.

[0015] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other purposes, characteristics and advantages of the present application will become more apparent through the following more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 A perspective view of a photographing assembly according to an exemplary embodiment of the present application is shown;

[0018] Figure 2A sectional view of a photographing assembly according to one example embodiment of the present application is shown.

[0019] Figure 3 A first perspective view of a fixing seat according to one example embodiment of the present application is shown.

[0020] Figure 4 A first perspective view of an optical path assembly according to one example embodiment of the present application is shown (including a mounting plate).

[0021] Figure 5 A second perspective view of an optical path assembly according to one example embodiment of the present application is shown (not including a mounting plate).

[0022] In the drawings, reference numerals represent components:

[0023] 1, light emitting member; 11, first path; 2, photographing assembly; 21, photographing optical axis; 3, optical path assembly; 31, second path; 32, reflecting member; 33, angle adjusting structure; 331, fixing seat; 3311, light beam inlet; 3312, light beam outlet; 332, mounting plate; 333, light guide cavity; 3331, first part; 3332, second part; 3333, fixing member; 334, adjusting assembly; 3341, positioning member; 3342, adjusting member; 4, convex lens; 5, adjustable diaphragm; 6, achromatic lens; 7, refracting mirror. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application more obvious, the following will describe the example embodiments according to the present application in detail with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the protection scope of the present application.

[0025] In the following description, a large number of details are provided in order to enable a thorough understanding of the present application. However, those skilled in the art can understand that the following description only exemplarily shows the preferred embodiments of the present application, and the present application can be implemented without one or more such details. In addition, in order to avoid confusion with the present application, some technical features known in the art are not described in detail.

[0026] For a thorough understanding of the present application, a detailed description will be made in the following description. Obviously, the implementation of the present application is not limited to the special details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can have other embodiments.

[0027] An embodiment of the present application provides a shooting assembly. The shooting assembly can continuously adjust the reflection angle of the reflecting member 32, so that the light beam emitted by the light emitting member 1 can converge into the shooting optical axis 21 of the shooting assembly 2. The shooting assembly according to the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0028] As shown in Figure 1 and Figure 2 , the shooting assembly includes a light emitting member 1, a shooting assembly 2 and a light path assembly 3. The light emitting member 1 emits a light beam along a first path 11, the shooting assembly 2 has a shooting optical axis 21, and the light path assembly 3 has a reflecting member 32 and an angle adjusting structure 33. The reflecting member 32 is arranged on the first path 11 to reflect the light beam to form a reflected light beam, and the angle adjusting structure 33 is connected with the reflecting member 32 to adjust the reflection angle of the reflected light beam, so that the reflected light beam is transmitted along a second path 31 to the shooting optical axis 21. It should be noted that, Figure 2 The two mutually perpendicular structures shown in

[0029] The light emitting member 1 can emit a light beam to the object to be photographed to improve the brightness of the object to be photographed. The light emitting member 1 can be an LED lamp or a laser emitter, etc. The type of the light emitting member 1 is not limited in the present application, and the user can determine the type of the light emitting member 1 according to actual needs.

[0030] A convex lens 4, an adjustable diaphragm 5 and an achromatic lens 6 can be arranged in sequence along the first path 11 of the light emitting member 1. The light beam emitted by the light emitting member 1 can pass through the convex lens 4, the adjustable diaphragm 5 and the achromatic lens 6 in sequence and enter the reflecting member 32. The convex lens 4 can focus the light beam emitted by the light emitting member 1, the adjustable diaphragm 5 can adjust the amount of light entering, and thus control the exposure effect of the shooting assembly 2. The achromatic lens 6 can be used to correct the refraction difference of light beams of different wavelengths, reduce the chromatic aberration phenomenon, and ensure the color accuracy and clarity of the image photographed by the shooting assembly 2. Through the joint action of the above-mentioned devices, the shooting assembly 2 can shoot high-quality images.

[0031] The reflecting member 32 can receive the light beam and reflect the light beam outward at a certain angle. The reflecting member 32 can be a plane mirror, etc. The present application does not make specific limitations.

[0032] The angle adjusting structure 33 can be movably connected with the reflecting member 32, when the angle adjusting structure 33 is adjusted, the reflecting member 32 can be driven to synchronously deflect, so as to adjust the reflection angle of the reflected light beam, and then the reflected light beam can be transmitted to the photographing optical axis 21 at a better angle and effect.

[0033] The intersection of the second path 31 and the photographing optical axis 21 can be provided with a refracting mirror 7, the reflected light beam formed by the reflecting member 32 can be refracted through the refracting mirror 7 and then transmitted to the photographing optical axis 21 of the photographing member 2.

[0034] The photographing assembly of the utility model, when the light emitting member 1 emits the light beam to the reflecting member, the angle adjusting structure 33 can continuously adjust the reflection angle of the reflecting member 32, so that the light beam emitted by the light emitting member 1 can converge into the photographing optical axis 21 of the photographing member 2, thereby realizing the illumination requirement of the camera shooting, thus, the mechanical structure of the photographing assembly is effectively simplified, the operation space required by the photographing assembly is reduced, the precision and miniaturization of the photographing assembly are realized, and the convenience of the operator is improved.

[0035] In some embodiments, as shown in Figure 4 and Figure 5 The angle adjusting structure 33 includes a fixing seat 331 and a mounting plate 332, the reflecting member 32 is arranged on the mounting plate 332, and the mounting plate 332 is movably connected with the fixing seat 331 to adjust the reflection angle of the reflected light beam.

[0036] The fixing seat 331 can be connected with the light emitting member 1 and the photographing member 2 respectively, the reflecting member 32 can be connected with the fixing seat 331 through the mounting plate 332, and the mounting plate 332 can be rotated relative to the fixing seat 331, so as to drive the reflecting member 32 arranged on the mounting plate 332 to synchronously rotate.

[0037] The reflecting member 32 and the mounting plate 332 can be detachably connected or integrally formed, and the detachable connection can include clamping connection or adhesive connection, which is not limited in the application.

[0038] Exemplarily, one side of the mounting plate 332 towards the fixing seat 331 can have a groove matched with the reflecting member 32, and the reflecting member 32 can be clamped in the groove, so as to form a stable connection between the reflecting member 32 and the mounting plate 332.

[0039] In the above embodiment, the mounting plate 332 can be rotated relative to the fixing seat 331, so as to drive the reflecting member 32 arranged on the mounting plate 332 to synchronously rotate, so that the reflection angle of the reflected light beam can be adjusted, and the mechanical structure of the angle adjusting structure 33 is simplified, and the processing and manufacturing difficulty of the angle adjusting structure 33 is reduced.

[0040] In some embodiments, as shown in Figure 2 and Figure 3 The fixed seat 331 and the mounting plate 332 enclose a light guide cavity 333, the reflecting member 32 is located in the light guide cavity 333, and the light guide cavity 333 has a first part 3331 located on the first path 11 and a second part 3332 located on the second path 31.

[0041] The reflecting member 32 can have a reflecting surface, and the reflecting surface of the reflecting member 32 can be located in the light guide cavity 333. The light beam emitted by the light emitting member 1 enters the reflecting member 32 through the first part 3331 of the light guide cavity 333, and the light beam reflected by the reflecting member 32 can be transmitted to the shooting optical axis 21 through the second part 3332 of the light guide cavity 333.

[0042] In the above embodiment, the cooperation of the fixed seat 331 and the mounting plate 332 can form a light beam transmission path, and the reflecting member 32 can be located at the intersection of the first part 3331 and the second part 3332, thereby effectively reducing the volume occupied by the angle adjustment structure 33 and improving the layout rationality of the angle adjustment structure 33.

[0043] In some embodiments, as shown in Figure 4 and Figure 5 The angle adjustment structure 33 includes a plurality of adjustment assemblies 334, and a fixed member 3333 is arranged in the light guide cavity 333. The mounting plate 332 is connected to the fixed member 3333 through the plurality of adjustment assemblies 334, and the plurality of adjustment assemblies 334 cooperate to adjust the angle of the mounting plate 332 relative to the fixed seat 331.

[0044] The fixed member 3333 can be in the shape of a plate, and the arrangement direction of the plate-shaped fixed member 3333 can be parallel to the arrangement direction of the mounting plate 332. The number of fixed members 3333 can correspond to the number of adjustment assemblies 334 to ensure the firmness of the connection of the mounting plate 332.

[0045] The plurality of adjustment assemblies 334 can be arranged opposite to each other. For ease of understanding, two oppositely arranged adjustment assemblies 334 can be marked as a first adjustment assembly 334 and a second adjustment assembly 334. When the angle to be adjusted is small, the first adjustment assembly 334 can be rotated towards the fixed seat 331, so that the part of the mounting plate 332 connected to the first adjustment assembly 334 moves towards the fixed seat 331, thereby driving the corresponding rotation of the reflecting member 32. When the angle to be adjusted is large, the second adjustment assembly 334 can be rotated in the opposite direction on the basis of rotating the first adjustment assembly 334, so that the part of the mounting plate 332 connected to the second adjustment assembly 334 moves away from the fixed seat 331, thereby driving the further corresponding rotation of the reflecting member 32.

[0046] The number of the adjusting assemblies 334 can be determined according to actual needs, and the number of the adjusting assemblies 334 can be increased to achieve more accurate angle adjustment. The number of the adjusting assemblies 334 is not limited in the application.

[0047] In the above embodiment, the plurality of adjusting assemblies 334 can firmly fix the mounting plate 332 on the fixing member 3333, and through the cooperation of the plurality of adjusting assemblies 334, the angle of the mounting plate 332 relative to the fixing seat 331 can be adjusted, and the adjustment of the reflection angle of the reflected light beam is realized, thereby effectively simplifying the operation steps of the angle adjustment structure 33 and improving the convenience and practicality of the angle adjustment structure 33.

[0048] In some embodiments, as shown in Figure 4 and Figure 5 The adjusting assembly 334 includes a positioning member 3341 and an adjusting member 3342, the positioning member 3341 and the adjusting member 3342 are connected to the corresponding fixing member 3333 through the mounting plate 332, the adjusting member 3342 is used to rotate and adjust the distance between the mounting plate 332 and the fixing member 3333, and the positioning member 3341 is used to limit the displacement of the mounting plate 332 after the adjusting member 3342 is adjusted.

[0049] The positioning member 3341 and the adjusting member 3342 can be arranged opposite to each other, the distance between the mounting plate 332 and the fixing member 3333 can be adjusted by rotating the adjusting member 3342, and when the adjustment is completed, the positioning member 3341 can be rotated to limit the mounting plate 332 at the current position, so as to avoid the position of the mounting plate 332 from being deviated when the shooting assembly is used.

[0050] The fixing member 3333 can be provided with a connecting hole matched with the positioning member 3341, and the positioning member 3341 can be connected to the connecting hole in a detachable manner, such as threaded connection.

[0051] In the above embodiment, through the cooperation of the positioning member 3341 and the adjusting member 3342, the mounting plate 332 can be locked at the adjusted position after being adjusted to the appropriate position, so as to avoid the adjustment failure caused by the loosening of the mounting plate 332, thereby effectively improving the reliability and practicality of the adjusting assembly 334.

[0052] In some embodiments, as shown in Figure 4 and Figure 5 One end of the adjusting member 3342 abuts against the corresponding fixing member 3333, and the other end of the adjusting member 3342 is rotationally connected to the mounting plate 332, and the adjusting member 3342 is used to rotate and drive the mounting plate 332 to move towards or away from the fixing member 3333.

[0053] In the above embodiment, during the rotation of the adjusting member 3342, one end of the adjusting member 3342 can always abut against the fixing member 3333 to form a stable connection relationship between the adjusting member 3342 and the fixing member 3333, and the other end of the adjusting member 3342 drives the mounting plate 332 to move towards or away from the fixing member 3333, effectively improving the adjusting efficiency and stability of the adjusting member 3342.

[0054] In some embodiments, as shown in Figure 4 and Figure 5 , a plurality of adjusting assemblies 334 are arranged along the edges of the mounting plate 332.

[0055] As shown in Figure 4 and Figure 5 , the number of adjusting assemblies 334 is four, and the four adjusting assemblies 334 are arranged at the four vertices of the mounting plate 332, so that the reflection angle of the reflecting member 32 can be quickly adjusted by adjusting the positions of the four vertices of the mounting plate 332.

[0056] In the above embodiment, the plurality of adjusting assemblies 334 are arranged along the edges of the mounting plate 332, so that the mounting plate 332 can be accurately adjusted, thereby improving the adjustment accuracy and accuracy of the reflecting member 32, and effectively ensuring the reflection effect of the reflecting member 32.

[0057] In some embodiments, as shown in Figure 3 , the fixed seat 331 has a light beam inlet 3311 which is in communication with the light guide cavity 333, and the first path 11 extends through the light beam inlet 3311 to the first part 3331.

[0058] The fixed seat 331 is formed with a light beam inlet 3311 on the side facing the light emitting member 1, and the light emitting member 1 can be arranged close to the light beam inlet 3311. The size of the light beam inlet 3311 can be greater than the diameter of the light emitting member 1, so as to guide all the light beams emitted by the light emitting member 1 into the fixed seat 331, avoiding the loss of light energy of the light emitting member 1.

[0059] In the above embodiment, the first path 11 can extend through the light beam inlet 3311 to the first part 3331, so as to ensure the light beam transmission effect of the light emitting member 1 while simplifying the mechanical structure of the shooting assembly, realizing the precision and miniaturization of the shooting assembly.

[0060] In some embodiments, as shown in Figure 3 , the fixed seat 331 has a light beam outlet 3312 which is in communication with the light guide cavity 333, and the reflected light beam extends through the light beam outlet 3312 to the second part 3332.

[0061] The fixed seat 331 is formed with a light beam outlet 3312 on the side facing the photographing member 2, the photographing member 2 can be arranged close to the light beam outlet 3312, and the size of the light beam outlet 3312 can be smaller than the diameter of the photographing member 2, so that all the light beams reflected by the reflecting member 32 can be transmitted to the photographing optical axis 21 of the photographing member 2, and the photographing effect of the photographing member 2 is effectively improved.

[0062] The plane where the light beam inlet 3311 is located and the plane where the light beam outlet 3312 is located can be perpendicular to each other, so that the light beam entering through the light beam inlet 3311 can be directly emitted out through the light beam outlet 3312 under the action of the reflecting member 32, thereby reducing the volume of the fixed seat 331 and the operation space occupied.

[0063] In the above embodiment, the reflected light beam can extend to the second part 3332 through the light beam outlet 3312, so that the mechanical structure of the photographing assembly is further simplified while the light beam transmission effect of the light emitting member 1 and the photographing effect of the photographing member 2 are ensured, and the photographing assembly is realized to be precise and small-sized.

[0064] According to another aspect of the present application, a laser processing device is also provided, which comprises a laser cutting device, a worktable and the photographing assembly as described above, and the worktable is located below the laser cutting device and the photographing assembly.

[0065] The object to be photographed can be placed on the worktable, the photographing assembly can be located above the worktable and photograph the object to be photographed, and the laser cutting device can perform laser cutting processing on the object to be photographed according to the photographed image to obtain a cut product.

[0066] The laser processing device of the present application comprises the photographing assembly as described above, and the photographing assembly has the beneficial effects as described above, so the laser processing device comprising the photographing assembly also has the beneficial effects as described above.

[0067] Although the example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the example embodiments described above are merely exemplary and are not intended to limit the scope of the present application. Those of ordinary skill in the art can make various changes and modifications without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as claimed in the appended claims.

[0068] For the convenience of description, the term "connected" can be used herein to describe the relationship between one or more elements or features shown in the figures and other elements or features. It should be understood that "connected" can include direct connection or indirect connection via other elements or features, and all these cases are intended to be included herein.

[0069] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, components, elements, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, components, elements, and / or groups thereof.

[0070] It should be noted that the terms "first", "second", and the like, as used in the description and the claims herein are intended to modify a particular disclosed embodiment unless otherwise indicated, are used for purposes of description and are not intended to limit the claimed embodiments' scope. It should be understood that the use of the term acted on by the term "adapted to" can refer to something that is either adapted to, or is operable to, or is operative to, some other item.

[0071] The utility model has carried on the explanation through the above embodiment, but should understand, the above embodiment is only for example and the purpose of explanation, but not the intention of the utility model is limited in the range of described embodiment. In addition, the skilled in the art can understand that the utility model is not limited to the above embodiment, according to the teaching of the utility model, more kinds of variations and modifications can also be made, and these variations and modifications all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the attached claims and its equivalent scope.

Claims

1. A photographing assembly, characterized in that, The application relates to a photographing assembly, which comprises a light-emitting part, a photographing part and a light path assembly. The light-emitting part emits a light beam along a first path. The photographing part has a photographing optical axis. The light path assembly comprises a reflecting part and an angle adjusting structure. The reflecting part is arranged on the first path to reflect the light beam and form a reflected light beam.

2. The photographing assembly according to claim 1, wherein, The angle adjusting structure is connected with the reflecting part to adjust the reflection angle of the reflected light beam.

3. The camera assembly of claim 2, wherein, The angle adjusting structure comprises a fixing seat and a mounting plate.

4. The camera assembly of claim 3, wherein, The reflecting part is arranged on the mounting plate.

5. The camera assembly of claim 4, wherein, The mounting plate is movably connected with the fixing seat to adjust the reflection angle of the reflected light beam.

6. The camera assembly of claim 5, wherein, The fixing seat and the mounting plate enclose a light guide cavity.

7. The camera assembly of claim 5, wherein, The reflecting part is located in the light guide cavity.

8. The camera assembly of claim 3, wherein, The light guide cavity has a first part located on the first path and a second part located on a second path.

9. The camera assembly of claim 3, wherein, The angle adjusting structure comprises a plurality of adjusting assemblies.

10. A laser processing apparatus characterized by comprising: The light guide cavity is provided with a fixing part. The mounting plate is connected with the fixing part through the adjusting assemblies. The adjusting assemblies are used for adjusting the angle of the mounting plate relative to the fixing seat. The adjusting assembly comprises a positioning part and an adjusting part. The positioning part and the adjusting part are connected with the corresponding fixing part through the mounting plate. The adjusting part is used for rotating to adjust the distance between the mounting plate and the fixing part. The positioning part is used for limiting the displacement of the mounting plate after the adjusting part is adjusted. One end of the adjusting part abuts against the corresponding fixing part. The other end of the adjusting part is rotatably connected with the mounting plate. The adjusting part is used for rotating to drive the mounting plate to move towards or away from the fixing part. The adjusting assemblies are arranged at intervals along the edge of the mounting plate. The fixing seat has a light beam inlet connected with the light guide cavity. The first path extends through the light beam inlet to the first part. The fixing seat has a light beam outlet connected with the light guide cavity. The reflected light beam extends through the light beam outlet to the second part. The application further relates to a laser cutting device, a stage and the photographing assembly. The stage is located below the laser cutting device and the photographing assembly.

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