An arch and shadowless plane combined light source device with adjustable window area

Abstract

The utility model discloses a kind of arch and shadowless plane combination light source device of window area adjustable, it includes: arch light source, it includes arch shell, window is opened in arch shell, first LED lamp assembly is equipped in one side of arch shell inside, second LED lamp assembly is equipped in the other side of its inside;Shadowless plane light source, it is equipped in arch light source bottom, it includes annular shell, annular LED lamp assembly is equipped in annular shell inside, annular LED lamp assembly one side is equipped with annular light guide structure;At least one window light shield, it is slidably connected between arch light source and shadowless plane light source, it includes arc baffle that is slidably connected in the arch shell of arch light source, arc baffle one end is equipped with first bending part, other end is equipped with second bending part, first bending part is abutted and slidably connected in annular shell one end of shadowless plane light source, second bending part is abutted and slidably connected in annular shell other end of shadowless plane light source.

Description

Technical Field

[0001] This utility model relates to the technical field of combined light sources, and in particular to a combined light source device with an adjustable viewing area, consisting of an arched shape and a shadowless plane. Background Technology

[0002] In the field of machine vision inspection, various light source devices are widely used to assist in the observation and analysis of workpiece surface and shape features. For example, arched light sources are often used to provide uniform, soft light, specifically for detecting surface micro-defects and other features; shadowless planar light sources, by providing directional focused light, are specifically used to detect features such as shape contours and positional accuracy. These light source devices are generally simple in design and easy to operate, and have been applied in manufacturing, improving inspection efficiency.

[0003] However, existing light source devices still have the following two drawbacks:

[0004] First, current single light source devices cannot simultaneously or sequentially provide uniform, shadowless soft light (for detecting surface micro-defects and other features) and directional focused light (for detecting features such as shape contours, positional accuracy, flatness, and assembly integrity). This results in inspectors having to frequently change between arched light sources or shadowless planar light sources for inspection, which greatly reduces inspection efficiency.

[0005] Secondly, the viewing area of ​​the existing light source device cannot be adjusted. When inspecting long strip workpieces or only focusing on a specific area, excess light will cause reflections in non-inspection areas or an overly bright background, which seriously affects the image quality. This makes it difficult to accurately identify microscopic defects on the surface of long strip workpieces or specific areas, thus easily leading to a decrease in inspection accuracy. Utility Model Content

[0006] The purpose of this invention is to overcome the aforementioned defects in the prior art and provide a combined arched and shadowless planar light source device with an adjustable viewing window area. First, by combining the arched light source and the shadowless planar light source, it is possible to quickly achieve the use of the arched light source alone, the shadowless planar light source alone, or the combination of these two light sources to quickly achieve microscopic inspection of the workpiece surface or geometric precision inspection such as shape, greatly reducing inspection efficiency. Second, by adjusting the light-blocking of the viewing window area through the light-blocking component, unnecessary light emission non-inspection areas can be blocked, thereby ensuring inspection accuracy.

[0007] To achieve the above objectives, this utility model provides a combined arched and shadowless plane light source device with an adjustable viewing area, comprising:

[0008] An arched light source includes an arched housing with a viewing window, a first LED light assembly installed on one side of the interior of the arched housing, and a second LED light assembly installed on the other side of the interior.

[0009] A shadowless planar light source is installed at the bottom of an arched light source. It includes an annular outer shell, inside which is installed an annular LED light assembly. An annular light guide structure is installed on one side of the annular LED light assembly.

[0010] At least one window light shield is slidably connected between an arched light source and a shadowless planar light source. It includes an arc-shaped baffle slidably connected to the arched outer shell of the arched light source. One end of the arc-shaped baffle is provided with a first bend and the other end is provided with a second bend. The first bend abuts against and is slidably connected to one end of the annular outer shell of the shadowless planar light source, and the second bend abuts against and is slidably connected to the other end of the annular outer shell of the shadowless planar light source.

[0011] Preferably, the number of the window light-blocking components is set to two.

[0012] Preferably, the arched housing of the arched light source includes a first arc-shaped end plate and a second arc-shaped end plate disposed opposite to the first arc-shaped end plate. An arc-shaped curved panel is provided at the outer end between the first arc-shaped end plate and the second arc-shaped end plate. The viewing window is opened on the arc-shaped curved panel. An arc-shaped baffle is slidably connected to the arc-shaped curved panel. A first heat sink is provided on one side between the first arc-shaped end plate and the second arc-shaped end plate, and a second heat sink is provided on the other side between the two. The first LED light assembly is placed on the first heat sink, and the second LED light assembly is placed on the second heat sink.

[0013] Preferably, the first LED lamp assembly includes a first circuit board and a plurality of uniformly distributed first LED beads mounted on the first circuit board.

[0014] Preferably, the second LED lamp assembly includes a second circuit board and a plurality of uniformly distributed second LED beads mounted on the second circuit board.

[0015] Preferably, a first power line electrically and signal-connected to the first LED lamp assembly is connected to one side of the first arc-shaped end plate or the second arc-shaped end plate, a second power line electrically and signal-connected to the second LED lamp assembly is connected to one side of the first arc-shaped end plate or the second arc-shaped end plate, and a third power line electrically and signal-connected to the annular LED lamp assembly is connected to one end of the annular housing.

[0016] Preferably, the annular housing of the shadowless planar light source includes an annular base installed at the bottom of the arched light source, side plates are installed around the annular base, an annular groove is formed between the annular base and the four side walls, the annular LED light assembly is installed inside the annular groove, and the annular light guide structure is inserted into the annular groove.

[0017] Preferably, the annular base has connecting ears on both sides of its top, and the shadowless planar light source is connected to the arched light source by screwing bolts into the connecting ears.

[0018] Preferably, the ring-shaped LED light assembly includes a ring-shaped circuit board and a plurality of third LED beads evenly distributed on the ring-shaped circuit board.

[0019] Preferably, the annular light guide structure includes an annular vertical structure inserted into an annular groove and an annular inclined structure disposed at the bottom of the annular vertical structure. The four inner sides of the annular inclined structure are all inclined at a certain angle, and the four inner sides inclined at a certain angle are inclined outward from the top to the bottom.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model can use an arched light source alone. The arched light source can be used to provide uniform and soft light, and can be used to detect surface micro-scratches, pits, stains, texture uniformity and color and other characteristic defects.

[0022] A shadowless planar light source can also be used alone. The shadowless planar light source can provide a well-defined beam of light, which can be used to detect geometric precision features such as shape contour, positional accuracy, flatness and assembly integrity.

[0023] It can also use both arched light sources and shadowless flat light sources simultaneously to quickly detect the two aforementioned characteristic defects, making it suitable for comprehensive inspection of some precision components.

[0024] Whether switching between the arched light source and the shadowless plane light source, or using the arched light source and the shadowless plane light source simultaneously, the process is relatively simple, convenient, and quick, which can greatly improve detection efficiency.

[0025] 2. This utility model allows for the adjustment of the viewing window area by sliding the window light-blocking component. When inspecting a long strip workpiece or a specific area of ​​the workpiece, the viewing window area can be adjusted so that it only displays the area to be inspected or the specific area of ​​the workpiece. This avoids excess light from shining out of the non-inspection area, causing reflections or an overly bright background, thus preventing this excess light from affecting the inspection and ensuring inspection accuracy.

[0026] 3. In summary, the present invention provides a combined arched and shadowless planar light source device with an adjustable viewing area. First, by integrating the arched light source and the shadowless planar light source together, the detection efficiency for multiple light source requirements can be effectively improved. Second, by adjusting the viewing area through the viewing window shading component, excess light is prevented from emanating from the non-detection area and affecting the detection, thereby ensuring detection accuracy. Attached Figure Description

[0027] To more clearly illustrate the technical solutions 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.

[0028] Figure 1 This is a schematic diagram of the structure of one viewpoint of a combined arched and shadowless plane light source device with an adjustable viewing area provided by an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of another viewpoint of a combined arched and shadowless plane light source device with an adjustable viewing area provided by an embodiment of this utility model;

[0030] Figure 3 This is a front sectional view of a combined arched and shadowless plane light source device with an adjustable viewing area provided by an embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of a slanted section of an arched light source provided in an embodiment of this utility model;

[0032] Figure 5 This is a side-section schematic diagram of the shadowless planar light source provided in an embodiment of this utility model.

[0033] The diagram includes:

[0034] 1. Arched light source; 10. Viewing window; 11. Arched outer shell; 110. Curved panel; 111. First curved end plate; 112. Second curved end plate; 115. First heat sink; 116. Second heat sink; 117. First power cord; 118. Second power cord; 15. First LED light assembly; 16. Second LED light assembly; 2. Shadowless planar light source; 21. Annular outer shell; 211. Annular base; 2110. Connecting ear; 212. Side plate; 213. Annular groove; 22. Annular LED light assembly; 23. Annular light guide structure; 231. Annular vertical structure; 232. Annular inclined structure; 24. Third power cord; 3. Viewing window light shield; 30. Curved baffle; 31. First bend; 32. Second bend. Detailed Implementation

[0035] The technical solution 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.

[0036] Please see Figures 1 to 5 An embodiment of this utility model provides a combined arched and shadowless plane light source device with an adjustable viewing area, comprising:

[0037] An arched light source 1 includes an arched housing 11, a viewing window 10 on the arched housing 11, a first LED light assembly 15 installed on one side of the interior of the arched housing 11, and a second LED light assembly 16 installed on the other side of the interior.

[0038] The shadowless planar light source 2 is installed at the bottom of the arched light source 1. It includes an annular shell 21, an annular LED light assembly 22 is installed inside the annular shell 21, and an annular light guide structure 23 is installed on one side of the annular LED light assembly 22.

[0039] At least one window light shield 3 is slidably connected between the arched light source 1 and the shadowless planar light source 2. It includes an arc-shaped baffle 30 slidably connected to the arched outer shell 11 of the arched light source 1. One end of the arc-shaped baffle 30 is provided with a first bending portion 31 and the other end is provided with a second bending portion 32. The first bending portion 31 abuts against and is slidably connected to one end of the annular outer shell 21 of the shadowless planar light source 2, and the second bending portion 32 abuts against and is slidably connected to the other end of the annular outer shell 21 of the shadowless planar light source 2.

[0040] The first bending part 31 is abutted and slidably connected to one corner of the annular shell 21 of the shadowless planar light source 2, and the second bending part 32 is abutted and slidably connected to the other corner of the annular shell 21 of the shadowless planar light source 2, thereby ensuring that the window light shield 3 is stably installed and stably slidably connected between the arched light source 1 and the shadowless planar light source 2.

[0041] The number of window light-blocking components 3 is set to two. The two window light-blocking components 3 can be adjusted to block light at both ends of the window 10, making light blocking more convenient and efficient.

[0042] The arched housing 11 of the arched light source 1 includes a first arc-shaped end plate 111 and a second arc-shaped end plate 112 opposite to the first arc-shaped end plate 111. An arc-shaped curved panel 110 is provided at the outer end between the first arc-shaped end plate 111 and the second arc-shaped end plate 112. A viewing window 10 is opened on the arc-shaped curved panel 110. An arc-shaped baffle 30 is slidably connected to the arc-shaped curved panel 110. A first heat sink 115 is provided on one side between the first arc-shaped end plate 111 and the second arc-shaped end plate 112, and a second heat sink 116 is provided on the other side between them. A first LED lamp assembly 15 is placed on the first heat sink 115, and a second LED lamp assembly 16 is placed on the second heat sink 116. The function of the first heat sink 115 is to facilitate heat dissipation for the first LED lamp assembly 15, ensuring its stable operation. The function of the second heat sink 116 is to facilitate heat dissipation for the second LED lamp assembly 16, ensuring its stable operation.

[0043] The first LED lamp assembly 15 includes a first circuit board and a plurality of uniformly distributed first LED beads mounted on the first circuit board (the first LED beads are prior art and are not shown in the accompanying drawings).

[0044] The second LED lamp assembly 16 includes a second circuit board and a plurality of uniformly distributed second LED beads mounted on the second circuit board (the second LED beads are prior art and are not shown in the accompanying drawings).

[0045] A first power line 117, which is electrically and signal-connected to the first LED lamp assembly 15, is connected to one side of the first arc-shaped end plate 111 or the second arc-shaped end plate 112. A second power line 118, which is electrically and signal-connected to the second LED lamp assembly 16, is connected to one side of the first arc-shaped end plate 111 or the second arc-shaped end plate 112. A third power line 24, which is electrically and signal-connected to the annular LED lamp assembly 22, is connected to one end of the annular housing 21.

[0046] The annular housing 21 of the shadowless planar light source 2 includes an annular base 211 installed at the bottom of the arched light source 1. Side plates 212 are installed around the annular base 211. An annular groove 213 is formed between the annular base 211 and the four side walls. An annular LED light assembly 22 is installed inside the annular groove 213. An annular light guide structure 23 is inserted into the annular groove 213.

[0047] The ring base 211 has connecting ears 2110 on both sides of its top. The shadowless planar light source 2 is connected to the arched light source 1 by screwing bolts into the connecting ears 2110.

[0048] The ring-shaped LED light assembly 22 includes a ring-shaped circuit board and a number of third LED beads (which are existing technology and are not shown in the accompanying drawings) that are evenly distributed on the ring-shaped circuit board.

[0049] The annular light guide structure 23 includes an annular vertical structure 231 inserted into the annular groove 213 and an annular inclined structure 232 located at the bottom of the annular vertical structure 231. The four inner sides of the annular inclined structure 232 are all inclined at a certain angle, and the four inner sides inclined at a certain angle are inclined outward from the top to the bottom.

[0050] The working principle of the arched light source 1 in this embodiment of the present invention is as follows: the workpiece is placed below the shadowless planar light source 2, and a photographing device is placed above the viewing window 10 of the arched light source 1. The photographing device observes the area to be inspected on the workpiece through the viewing window 10 area. The first LED light assembly 15 and the second LED light assembly 16 emit light respectively. These two lights illuminate the inner wall of the curved panel 110. The inner wall of the curved panel 110 scatters and reflects these two lights downward onto the workpiece, thereby providing uniform and soft light to the workpiece.

[0051] The working principle of the shadowless planar light source 2 in this embodiment of the utility model is as follows: the ring LED light assembly 22 emits light, and this light is guided by the ring light guide structure 23 to the four inner sides of the ring inclined structure 232. Since the four inner sides are inclined at a certain angle and are inclined outward from the top to the bottom, the light from the four inner sides emits a cluster of light downwards, thereby providing the workpiece with a clear direction of clustered light.

[0052] This utility model discloses an adjustable viewing area arched and shadowless planar combined light source device, which has the following advantages: First, by integrating the arched light source 1 and the shadowless planar light source 2 together, it is possible to quickly switch between the arched light source 1, the shadowless planar light source 2, and the combined light source of the arched light source 1 and the shadowless planar light source 2, resulting in fast switching speed and high detection efficiency. Second, by adjusting the sliding position of the viewing window shading member 3, the viewing window 10 area can be adjusted, thereby avoiding the influence of excess light in non-detection areas on the detection and ensuring detection accuracy. For example, when detecting long strip-shaped workpieces or only needing to detect the middle area of ​​the viewing window 10, the unnecessary light-emitting areas at both ends of the viewing window 10 can be blocked by adjusting the viewing window shading member 3, completely avoiding excess stray light forming reflections or causing excessively bright backgrounds in non-detection areas, greatly improving the signal-to-noise ratio and contrast of the image, and is especially suitable for the detection of local defects in precision components.

[0053] 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 combined arched and shadowless planar light source device with an adjustable viewing area, characterized in that, It includes: An arched light source (1) includes an arched housing (11) with a viewing window (10) on the arched housing (11). A first LED light assembly (15) is installed on one side of the interior of the arched housing (11), and a second LED light assembly (16) is installed on the other side of the interior. A shadowless planar light source (2) is installed at the bottom of an arched light source (1). It includes an annular shell (21), an annular LED light assembly (22) is installed inside the annular shell (21), and an annular light guide structure (23) is installed on one side of the annular LED light assembly (22). At least one window shading member (3) is slidably connected between the arched light source (1) and the shadowless planar light source (2). It includes an arc-shaped baffle (30) slidably connected to the arched outer shell (11) of the arched light source (1). One end of the arc-shaped baffle (30) is provided with a first bend (31) and the other end is provided with a second bend (32). The first bend (31) abuts against and is slidably connected to one end of the annular outer shell (21) of the shadowless planar light source (2), and the second bend (32) abuts against and is slidably connected to the other end of the annular outer shell (21) of the shadowless planar light source (2).

2. The adjustable viewing area arched and shadowless plane combined light source device according to claim 1, characterized in that, The number of the window light-blocking component (3) is set to two.

3. The combined arched and shadowless plane light source device with adjustable viewing area according to claim 1, characterized in that, The arched housing (11) of the arched light source (1) includes a first arc-shaped end plate (111) and a second arc-shaped end plate (112) disposed opposite to the first arc-shaped end plate (111). An arc-shaped curved panel (110) is provided at the outer end between the first arc-shaped end plate (111) and the second arc-shaped end plate (112). The window (10) is opened on the arc-shaped curved panel (110). The arc-shaped baffle (30) is slidably connected to the arc-shaped curved panel (110). A first heat sink (115) is provided on one side between the first arc-shaped end plate (111) and the second arc-shaped end plate (112), and a second heat sink (116) is provided on the other side between them. The first LED lamp assembly (15) is placed on the first heat sink (115), and the second LED lamp assembly (16) is placed on the second heat sink (116).

4. A combined arched and shadowless plane light source device with an adjustable viewing area according to claim 1 or 3, characterized in that, The first LED lamp assembly (15) includes a first circuit board and a plurality of uniformly distributed first LED beads mounted on the first circuit board.

5. A combined arched and shadowless plane light source device with an adjustable viewing area according to claim 1 or 3, characterized in that, The second LED lamp assembly (16) includes a second circuit board and a plurality of uniformly distributed second LED beads mounted on the second circuit board.

6. The combined arched and shadowless plane light source device with adjustable viewing area according to claim 3, characterized in that, A first power line (117) electrically and signal-connected to the first LED lamp assembly (15) is connected to one side of the first arc-shaped end plate (111) or the second arc-shaped end plate (112), and a second power line (118) electrically and signal-connected to the second LED lamp assembly (16) is connected to one side of the first arc-shaped end plate (111) or the second arc-shaped end plate (112), and a third power line (24) electrically and signal-connected to the annular LED lamp assembly (22) is connected to one end of the annular outer shell (21).

7. The combined arched and shadowless plane light source device with adjustable viewing area according to claim 1, characterized in that, The annular shell (21) of the shadowless planar light source (2) includes an annular base (211) installed at the bottom of the arched light source (1). Side plates (212) are installed around the annular base (211). An annular groove (213) is formed between the annular base (211) and the four side walls. The annular LED lamp assembly (22) is installed inside the annular groove (213). The annular light guide structure (23) is inserted into the annular groove (213).

8. The combined arched and shadowless plane light source device with adjustable viewing area according to claim 7, characterized in that, The annular base (211) has connecting ears (2110) on both sides of its top. The shadowless planar light source (2) is connected to the arched light source (1) by screwing bolts into the connecting ears (2110).

9. A combined arched and shadowless plane light source device with an adjustable viewing area according to claim 1 or 7, characterized in that, The ring-shaped LED light assembly (22) includes a ring-shaped circuit board and several third LED beads evenly distributed on the ring-shaped circuit board.

10. A combined arched and shadowless plane light source device with an adjustable viewing area according to claim 7, characterized in that, The annular light guide structure (23) includes an annular vertical structure (231) inserted into an annular groove (213) and an annular inclined structure (232) at the bottom of the annular vertical structure (231). The four inner sides of the annular inclined structure (232) are inclined at a certain angle, and the four inner sides inclined at a certain angle are inclined outward from the top to the bottom.

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