Fixed large-size coaxial light source

Abstract

The utility model discloses a fixed large-size coaxial light source. The fixed large-size coaxial light source comprises a shell, a spectroscope, a diffusion plate and a circuit board, the bottom of the shell is provided with a light outlet, the shell is a shell formed by splicing two side plates, a top plate, a front plate and a rear plate, the top plate is provided with a detection port, the front ends of the inner sides of the two side plates are provided with first mounting groove bodies used for clamping the left side and the right side of the spectroscope, and the first mounting groove bodies are provided with a plurality of kidney-shaped holes. A plurality of kidney-shaped holes are formed in the first mounting groove body, first buffer pads are arranged in the kidney-shaped holes, the distance between every two adjacent kidney-shaped holes is L1, the distances between the head end and the tail end of the first mounting groove body and the nearest kidney-shaped hole are both L2, and the size of L2 is smaller than half of L1; the diffusion plate, the circuit board and the rear plate are sequentially arranged at the rear ends of the inner sides of the two side plates from inside to outside. According to the utility model, the condition that the spectroscope is broken in the transportation and application process of the large-size coaxial light source can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of coaxial light source technology, and in particular to a fixed large-size coaxial light source. Background Technology

[0002] Based on the existing methods for fixing large-size coaxial light source beam splitters on the market, the beam splitter is prone to breakage during the assembly and transportation of the light source. Moreover, when the light source is installed at the machine's operating site, the machine will move, including acceleration and sudden braking. The coaxial light source will also move with the machine. Due to the simple and unstable fixing structure of the light source beam splitter, the beam splitter may come into contact with or collide with the light source housing during the machine's movement, causing the beam splitter to break.

[0003] Therefore, it is necessary to design a structure to fix a large-sized coaxial light source beam splitter to prevent the beam splitter from breaking. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a fixed large-size coaxial light source. The housing structure is improved to enhance the installation stability of the beam splitter and avoid contact or collision between the housing and the beam splitter, which could cause the beam splitter to break.

[0005] To achieve the above objectives, this utility model provides a fixed large-size coaxial light source, including a housing, a beam splitter, a diffuser plate, and a circuit board;

[0006] The bottom of the housing is provided with a light outlet. The housing is a shell composed of two side plates, a top plate, a front plate and a rear plate. The top plate is provided with a detection port. The front end of the inner side of the two side plates is provided with a first mounting groove for engaging the left and right sides of the beam splitter. The first mounting groove is provided with a plurality of waist-shaped holes. A first buffer pad is provided in the waist-shaped holes. The distance between two adjacent waist-shaped holes is L1. The distance between the first and last ends of the first mounting groove and the nearest waist-shaped hole is the same, L2. The size of L2 is less than half of L1.

[0007] The left and right sides of the beam splitter are snapped into the first mounting slot, and its upper and lower ends are snapped into the top plate and the front plate.

[0008] The diffuser plate, circuit board, and rear plate are arranged sequentially from the inside to the outside on the inner rear end of the two side plates.

[0009] Furthermore, the depth and diameter of the oblong hole are both greater than those of the first mounting groove. The rigid engagement of the first mounting groove ensures the initial positioning accuracy of the left and right sides of the beam splitter, while the oblong hole creates a fine-tuning space through the elastic deformation of the buffer pad. This "rigid-flexible combination" design can compensate for the micro-deformation of the beam splitter's coating layer caused by temperature and humidity changes, avoiding optical surface distortion. At the same time, the greater depth of the oblong hole ensures that the buffer pad retains a certain amount of pre-compression under compressed conditions, and can also buffer and resist pressure on the side edges of the beam splitter even under vibration, preventing the beam splitter from breaking under stress. The spaciousness provided by the oblong hole makes the replacement process more convenient, without the need to disassemble too many parts, reducing maintenance time and workload, and improving the availability of the equipment.

[0010] Furthermore, the front plate and top plate are respectively provided with a second mounting groove and a third mounting groove for supporting the upper and lower ends of the beam splitter. The beam splitter is mounted on the first mounting groove, the second mounting groove, and the third mounting groove. A second buffer pad is provided on the second mounting groove, and a third buffer pad is provided on the third mounting groove. The second buffer pad and the third buffer pad work together with the first buffer pad in the waist-shaped hole of the first mounting groove to form an XYZ triaxial vibration attenuation network, which can prevent the beam splitter from breaking due to the accumulation of resonant stress.

[0011] Furthermore, the thickness of the third buffer pad is greater than that of the second buffer pad. That is, the stiffness ratio of the third buffer pad and the second buffer pad is adjusted to 1.2:1, which can avoid common mechanical vibration frequency bands and prevent structural fatigue failure caused by resonance.

[0012] Furthermore, the first, second, and third buffer pads are made of sponge, silicone, rubber, or other soft materials. This provides sufficient cushioning for the beam splitter, preventing breakage during transport.

[0013] Furthermore, the first, second, and third buffer pads are all provided with wrapping grooves for enclosing multiple beam splitters. These wrapping grooves allow for a tighter fit between the edges of the beam splitters and the buffer pads, improving the buffering effect.

[0014] Furthermore, the four corners of the beam splitter are rounded. When subjected to mechanical impact, the rounded corner structure achieves radial diffusion of impact energy through surface deformation, effectively preventing microcracks from initiating at the corners. It also forms a continuous curvature matching contact with the buffer pad in the mounting groove, resulting in uniform contact pressure distribution and further preventing hidden crack defects caused by the accumulation of installation stress at the corners.

[0015] Furthermore, the end of the first mounting groove is a rounded structure. This may accommodate the rounded corners of the beam splitter, thereby reducing the collision between the end of the first mounting groove and the beam splitter.

[0016] Furthermore, a fourth mounting slot is provided on the detection port, and an intensifying lens is installed on the fourth mounting slot.

[0017] Furthermore, a fifth mounting groove is provided on each of the two side plates, and the diffused plate is snapped into the fifth mounting groove.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. By setting first mounting grooves on both side plates and forming equally spaced oblong holes on the first mounting grooves to prevent the first buffer pad from moving left and right, the oblong holes are deeper than the mounting grooves, ensuring that the buffer pad retains a certain amount of pre-compression under compressed conditions. Even under vibration, this can buffer and resist pressure on the side edges of the beam splitter, preventing the beam splitter from breaking under stress. The spaciousness provided by these oblong holes makes the replacement process more convenient, without disassembling too many parts, reducing maintenance time and workload, and improving the availability of the equipment.

[0020] 2. The front plate and top plate form the second and third mounting grooves, respectively, and are equipped with sponge pads of different thicknesses to buffer the beam splitter. These pads work in conjunction with the first buffer pad in the oblong hole of the first mounting groove to form an XYZ triaxial vibration attenuation network, which can prevent the beam splitter from cracking due to the accumulation of resonant stress. At the same time, the stiffness ratio of the third buffer pad and the second buffer pad is adjusted to 1.2:1, which avoids common mechanical vibration frequency bands and prevents structural fatigue fracture caused by resonance.

[0021] In summary, the above-mentioned structural improvements for fixing the beam splitter provide a good buffering function, which can prevent the beam splitter from breaking during transportation and application of large-size coaxial light sources. Attached Figure Description

[0022] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a fixed large-size coaxial light source according to the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram of the decomposition process;

[0025] Figure 3 This is a schematic diagram of the side plate of this utility model;

[0026] Figure 4 yes Figure 3 Enlarged schematic diagram of region A;

[0027] Figure 5 yes Figure 1 A cross-sectional view along line BB;

[0028] Figure 6 This is a schematic diagram of the structure of the beam splitter of this utility model;

[0029] Figure 7 This is a cross-sectional schematic diagram of another embodiment of the first, second, or third buffer pad of this utility model;

[0030] Figure 8 This is a cross-sectional schematic diagram of another embodiment of the first, second, or third buffer pad of this utility model.

[0031] The diagram includes:

[0032] 1. Outer shell; 11. Side panel; 111. First mounting slot; 112. Waist-shaped hole; 113. First buffer pad; 114. Fifth mounting slot; 115. First mounting part; 12. Top plate; 121. Detection port; 122. Third mounting slot; 123. Third buffer pad; 124. Fourth mounting slot; 13. Front plate; 131. Second mounting slot; 132. Second buffer pad; 14. Rear plate; 141. First mounting hole; 15. Light outlet; 16. Bottom plate; 161. Fifth mounting slot; 2. Beam splitter; 21. Encasing slot; 3. Diffuser plate; 4. Circuit board; 5. Intensifying lens. Detailed Implementation

[0033] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0036] Please see Figures 1 to 8 The present invention provides a fixed large-size coaxial light source, including a housing 1, a beam splitter 2, a diffuser 3, and a circuit board 4;

[0037] like Figure 1 and Figure 2 As shown, the outer shell 1 of this embodiment is a shell assembled from two side panels 11, a top panel 12, a front panel 13, and a rear panel 14. The side wings or edges of the side panels 11, top panel 12, front panel 13, and rear panel 14 are provided with screw holes, and are respectively fixedly connected by screws to achieve assembly. The outer shell 1, assembled from the above components, has a light outlet 15 at its bottom for illuminating the object being measured. A detection port 121 is provided on the top panel 12 of the outer shell 1 for camera operation.

[0038] like Figure 3 As shown, a first mounting groove 111 for engaging the left and right sides of the beam splitter 2 is provided on the inner front end of the two side plates 11. The first mounting groove 111 is inclined at 45°, so that when the beam splitter 2 is installed, it also forms a 45° inclined position, which facilitates the beam splitting operation of the light source in the circuit board 4. Several oblong holes 112 are provided on the first mounting groove 111, specifically as shown in the figure. Figure 4As shown, three oblong holes 112 are formed on the first mounting groove 111. The spacing between each pair of the three oblong holes 112 is the same, and this spacing can be set as L1. In this embodiment, the value of L1 can be 65, 70, 75, 80, 85, 90, or 95 mm. Preferably, it is controlled within the range of 65-95 mm to achieve the best effect. The distance between the first and last ends of the first mounting groove 111 and the nearest oblong hole 112 is the same, which is L2. Preferably, the size of L2 must be less than 30 mm. In general, the size of L2 is less than half of L1. In this way, the setting of the three oblong holes 112 can play the role of relatively fixing the beam splitter 2. At the same time, a first buffer pad 1 is provided on the oblong holes 112. 13 is used to buffer the force on the beam splitter 2 during vibration. In particular, the size of L2 must be less than 30mm. This setting allows the two ends of the beam splitter 2 to have a better fixing effect when subjected to force. The vibration force can be transmitted to the middle of the side edge to be offset by the first buffer pad 113 and the waist-shaped hole 112. In particular, the depth and diameter of the waist-shaped hole 112 are both larger than the first mounting groove 111. The rigid snap-fit ​​of the first mounting groove 111 ensures the initial positioning accuracy of the left and right sides of the beam splitter 2. The waist-shaped hole 112 forms a fine adjustment space through the elastic deformation of the first buffer pad 113. This can compensate for the micro deformation of the coating layer of the beam splitter 2 caused by temperature and humidity changes and avoid optical surface distortion. Meanwhile, the depth of the waist-shaped hole 112 is greater than that of the mounting groove, ensuring that the buffer pad retains a certain amount of pre-compression under compressed conditions. Even if subjected to vibration, it can buffer and resist pressure on the side edge of the beam splitter 2, thus preventing the beam splitter 2 from breaking under stress. The spaciousness provided by the waist-shaped hole 112 makes the replacement process more convenient, without the need to disassemble too many parts, reducing maintenance time and workload, and improving the availability of the equipment.

[0039] The front plate 13 and the top plate 12 are respectively provided with a second mounting groove 131 and a third mounting groove 122 for supporting the upper and lower ends of the beam splitter 2. The beam splitter 2 is mounted on the first mounting groove 111, the second mounting groove 131 and the third mounting groove 122. A second buffer pad 132 is provided on the second mounting groove 131 and a third buffer pad 123 is provided on the third mounting groove 122. During assembly, the left and right sides of the beam splitter 2 are snapped into the first mounting groove 111, and its upper and lower ends are snapped into the second mounting groove 131 and the third mounting groove 122 respectively.

[0040] Preferably, the thickness of the third buffer pad 123 in this embodiment is greater than that of the second buffer pad 132. In this embodiment, the first buffer pad 113, the second buffer pad 132 and the third buffer pad 123 are sponge pads. The second buffer pad 132 can be a 1mm thick sponge pad and the third buffer pad 123 can be a 3mm thick sponge pad. This achieves a stiffness ratio of 1.2:1 between the third buffer pad 123 and the second buffer pad 132, which can avoid common mechanical vibration frequency bands and prevent structural fatigue and breakage caused by resonance.

[0041] Of course, the first buffer pad 113, the second buffer pad 132, and the third buffer pad 123 can also be made of silicone pads, rubber pads, or other soft materials, so that the beam splitter 2 can provide sufficient buffering force and avoid breakage of the beam splitter 2 during transportation.

[0042] In this embodiment, the four corners of the beam splitter 2 are rounded. When subjected to mechanical impact, the rounded corner structure achieves radial diffusion of impact energy through surface deformation, effectively preventing microcracks from initiating at the corners. It forms a continuous curvature matching contact with the buffer pad in the mounting groove, and the contact pressure is evenly distributed, further avoiding hidden crack defects caused by the accumulation of installation stress at the corners. At the same time, in order to match the rounded corner setting of the beam splitter 2, the end of the first mounting groove 111 is also set as an arc structure, which can be adapted to the rounded corner setting of the beam splitter 2, thereby reducing the collision between the end of the first mounting groove 111 and the beam splitter 2.

[0043] A fourth mounting groove 124 is provided around the detection port 121. An intensifying lens 5 is installed in the fourth mounting groove 124. The intensifying lens 5 can be glued into the fourth mounting groove 123. The diffuser plate 3, the circuit board 4, and the rear plate 14 are arranged sequentially from the inside to the outside on the inner rear end of the two side plates 11. Specifically, a fifth mounting groove 114 is also provided on the two side plates 11, and the diffuser plate 3 is snapped into the fifth mounting groove 114. A first mounting part 115 is provided at the rear end of the two side plates 11. The rear plate 14 is fixed to the first mounting part 115 by screws. A first mounting hole 141 is provided on the rear plate 14. The circuit board 4 is locked by the screws and the first mounting hole 141. A base plate 16 is provided at the bottom of the first mounting part 115 to support the diffuser plate 3, the circuit board 4, and the rear plate 14. In particular, a fifth mounting groove 161 is provided on the base plate 16 to snap the diffuser plate 3. In some embodiments, heat dissipation holes can be provided on the rear plate 14.

[0044] In some embodiments, the first buffer pad 113, the second buffer pad 132, and the third buffer pad 123 are all provided with a wrapping groove 21 for wrapping the plurality of beam splitters 2. The wrapping groove 21 allows the edges of the beam splitters 2 to fit more tightly with the buffer pads, improving the buffering effect. Preferably, the wrapping groove 21 can be used as follows: Figure 7The straight groove shown can also be as follows: Figure 8 The inclined groove can be adjusted according to the actual situation.

[0045] In some embodiments, to address the fragile edge characteristics of the beam splitter 2, the third buffer pad 123 is made of honeycomb microstructured silicone material. The porosity of the third buffer pad 123 is 30%-40%. When impacted in the Z-axis direction, it generates controllable collapse deformation, simultaneously reducing the dynamic load rate, so that the edge stress of the beam splitter 2 is always <5MPa.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixed large-size coaxial light source, characterized in that, It includes a housing (1), a beam splitter (2), a diffuser (3), and a circuit board (4); The bottom of the outer shell (1) is provided with a light outlet (15). The outer shell (1) is a shell composed of two side plates (11), a top plate (12), a front plate (13) and a rear plate (14). The top plate (12) is provided with a detection port (121). The front end of the inner side of the two side plates (11) is provided with a first mounting groove (111) for snapping onto the left and right sides of the beam splitter (2). The first mounting groove (111) is provided with a plurality of waist-shaped holes (112). A first buffer pad (113) is provided in the waist-shaped holes (112). The distance between two adjacent waist-shaped holes (112) is L1. The distance between the first mounting groove (111) and the nearest waist-shaped hole (112) is the same, L2. The size of L2 is less than half of L1. The left and right sides of the beam splitter (2) are snapped into the first mounting groove (111), and its upper and lower ends are snapped into the top plate (12) and the front plate (13). The diffuser plate (3), circuit board (4) and rear plate (14) are arranged sequentially from the inside to the outside on the inner rear end of the two side plates (11).

2. The fixed large-size coaxial light source according to claim 1, characterized in that, The depth and diameter of the waist-shaped hole (112) are both greater than those of the first mounting groove (111).

3. A fixed large-size coaxial light source according to claim 1, characterized in that, The front plate (13) and the top plate (12) are respectively provided with a second mounting groove (131) and a third mounting groove (122) for supporting the upper and lower ends of the beam splitter (2). The beam splitter (2) is mounted on the first mounting groove (111), the second mounting groove (131) and the third mounting groove (122). A second buffer pad (132) is provided on the second mounting groove (131) and a third buffer pad (123) is provided on the third mounting groove (122).

4. A fixed large-size coaxial light source according to claim 3, characterized in that, The thickness of the third buffer pad (123) is greater than that of the second buffer pad (132).

5. A fixed large-size coaxial light source according to claim 3, characterized in that, The first buffer pad (113), the second buffer pad (132) and the third buffer pad (123) are sponge pads.

6. A fixed large-size coaxial light source according to any one of claims 3 or 4, characterized in that, The first buffer pad (113), the second buffer pad (132) and the third buffer pad (123) are all provided with a wrapping groove (21) for wrapping the majority of the beam splitters (2).

7. A fixed large-size coaxial light source according to claim 1, characterized in that, The four corners of the beam splitter (2) are rounded.

8. A fixed large-size coaxial light source according to claim 7, characterized in that, The end of the first mounting groove (111) is an arc structure.

9. A fixed large-size coaxial light source according to claim 1, characterized in that, The detection port (121) is provided with a fourth mounting slot (124), and an intensifying lens (5) is mounted on the fourth mounting slot (124).

10. A fixed large-size coaxial light source according to claim 1, characterized in that, The two side plates (11) are also provided with a fifth mounting groove (114), and the diffused plate (3) is snapped into the fifth mounting groove (114).

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