Variable light source and detection device

Abstract

The utility model relates to the technical field of light sources, and discloses a variable light source and a detection device, and the variable light source comprises a coaxial light source which comprises a shell, a lamp panel and a spectroscope, the lamp panel and the spectroscope are both installed in the shell, and light emitted by the lamp panel penetrates through the spectroscope to be emitted on a workpiece; the rotating disc comprises a light-tight disc body and a plurality of lenses, a plurality of mounting holes are formed in the light-tight disc body in a circumferential array mode, the lenses are mounted in the mounting holes, and the light-tight disc body can rotate so that the different lenses can rotate to the position between the lamp panel and the spectroscope; the lens is an optical filter or a patterned glass sheet. According to the variable light source and the detection device, more light emitting effects can be provided, and the application range of the light source is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of light sources, in particular to a variable light source and a detection device. Background Art

[0002] The current coaxial light source includes a housing, a lamp board and a beam splitter. The lamp board and the beam splitter are both installed in the housing. The light output effect of the coaxial light source is fixed, that is, it can only emit light of a specific color to irradiate on the workpiece. Generally, it is only suitable for illuminating the workpiece when detecting a relatively flat workpiece, and the detection range is relatively small, making it difficult to meet the needs of flexible detection. In addition, a filter is arranged on the light output side of the coaxial light source. During detection, the light needs to pass through the filter at least twice, that is, the output light passes through the beam splitter and the filter and irradiates on the workpiece, and then the light reflected by the workpiece passes through the filter and is incident into the detection camera through the beam splitter, resulting in a poor detection effect of the detection camera.

[0003] In view of this, it is necessary to design a variable light source that can provide more light output effects to meet the actual use needs.

[0004] The above information is provided as background information only to assist in understanding the present disclosure, and it is not determined or admitted whether any of the above content can be used as the prior art relative to the present disclosure. Summary of the Utility Model

[0005] The utility model provides a variable light source that can provide more light output effects to meet the actual use needs.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A variable light source includes:

[0008] A coaxial light source, including a housing, and a lamp board and a beam splitter both installed in the housing, and the light emitted by the lamp board passes through the beam splitter and irradiates on the workpiece;

[0009] A rotating disk, including an opaque disk body and a plurality of lenses. A plurality of installation holes are arranged in a circumferential array on the opaque disk body, and the lenses are installed in the installation holes, and the opaque disk body can rotate so that different lenses rotate between the lamp board and the beam splitter;

[0010] The lens is a filter or a patterned glass sheet.

[0011] Optionally, the variable light source further includes a rotation driving device for driving the rotating disk to rotate;

[0012] The opaque disk body is provided with an installation hole, and the rotating shaft of the rotation driving device is inserted and connected with the installation hole.

[0013] Optionally, a positioning and stopping portion for positioning the opaque disc body is provided on the rotation axis, and the positioning and stopping portion can be adjusted in position along the central axis direction of the rotation axis;

[0014] A fixing member for pressing and fixing the opaque disc body onto the positioning and stopping portion is further installed on the rotation axis.

[0015] Optionally, the patterned glass sheet includes a substrate and a graphic film layer;

[0016] The graphic in the graphic film layer is an ink-printed graphic.

[0017] Optionally, the housing is provided with an avoidance groove for avoiding the rotating disc;

[0018] The thickness of the avoidance groove is the same as the width of the opaque disc body, and the lens does not protrude from the side surface of the opaque disc body.

[0019] Optionally, the variable light source includes two of the coaxial light sources;

[0020] When one lens is located between the lamp board and the beam splitter of one of the coaxial light sources, the other lens is located between the lamp board and the beam splitter of the other coaxial light source;

[0021] The beam splitters of the two coaxial light sources are perpendicular to each other.

[0022] Optionally, the number of the mounting holes is an even number, and the two lens structures symmetrically arranged about the central axis of the opaque disc body are the same.

[0023] Optionally, at least one of the lenses is a filter, and at least one of the lenses is a patterned glass sheet; the colors of adjacent two filters are different, and the patterns on adjacent two patterned glass sheets are different.

[0024] Optionally, the coaxial light source further includes a diffusion plate installed in the housing, and the diffusion plate is located between the lamp board and the rotating disc.

[0025] A detection device includes a variable light source as described in any one of the above;

[0026] It further includes a detection camera, and the detection camera faces the beam splitter.

[0027] Compared with the prior art, the present utility model has the following beneficial effects:

[0028] The variable light source provided by the present utility model can provide different light-emitting illumination effects for workpieces by adjusting the rotation angle of the opaque disc body so that different lenses are located between the lamp board and the beam splitter. The light emitted by the lamp board needs to pass through the lenses first and then reach the beam splitter, thereby effectively expanding the applicable range of the variable light source and better meeting the needs of detecting workpieces of different specifications.

[0029] The present utility model has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent detailed description, or will be described in detail in the accompanying drawings incorporated herein and the subsequent detailed description. These accompanying drawings and detailed description are used together to explain the specific principles of the present utility model. Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is a schematic installation structure diagram of the variable light source provided by the embodiment of the present utility model;

[0032] Figure 2 It is a top view schematic diagram of the rotating disc provided by the embodiment of the present utility model;

[0033] Figure 3 It is a schematic diagram of the lens provided by the embodiment of the present utility model;

[0034] Figure 4 It is a top view schematic diagram of the first lens provided by the embodiment of the present utility model;

[0035] Figure 5 It is a top view schematic diagram of the second lens provided by the embodiment of the present utility model;

[0036] Figure 6 It is a top view schematic diagram of the third lens provided by the embodiment of the present utility model;

[0037] Figure 7 It is a top view schematic diagram of the fourth lens provided by the embodiment of the present utility model.

[0038] Reference Signs: 1, coaxial light source; 11, housing; 12, lamp board; 13, beam splitter; 14, diffusion plate; 2, rotating disc; 21, opaque disc body; 211, mounting hole; 22, lens; 221, substrate; 222, graphic film layer; 23, rotation driving device; 231, positioning and stopping part; 232, fixing part. Detailed implementation manners

[0039] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, the following will be described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0040] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0041] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present application.

[0042] In the description of the present application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0043] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary or secondary, or order relationship between these entities or operations.

[0044] Without further limitation, in the present application, the expressions such as "including", "comprising", "having" or other similar expressions used in the statement are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be additional elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or also include elements inherent to this process, method or product.

[0045] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood as not including the base number; expressions such as "above", "below", "within", etc. are understood as including the base number. In addition, in the description of the embodiments of this application, the meaning of "multiple" is two or more (including two), and similar expressions related to "many" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically defined.

[0046] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the drawing. It is only for the convenience of describing the specific embodiments of this application or for the reader to understand, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it cannot be understood as a limitation to the embodiments of this application.

[0047] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms such as "installed", "connected", "joined", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which this application pertains, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0048] Embodiment 1

[0049] In view of the above-mentioned defects existing in the existing coaxial light sources, based on the rich practical experience and professional knowledge of the applicant in designing and manufacturing such products for many years, and in combination with the application of theory, the applicant actively conducts research and innovation in the hope of creating a technology that can solve the defects in the existing technology and make the variable light source more practical. After continuous research, design, and repeated sample making and improvement, the applicant finally created the present utility model with practical value.

[0050] Please refer to Figures 1 to 7 , the embodiments of the present utility model provide a variable light source, including:

[0051] The coaxial light source 1 includes a housing 11, and a lamp board 12 and a beam splitter 13 both installed in the housing 11. The light emitted by the lamp board 12 passes through the beam splitter 13 and then shines on the workpiece. The coaxial light source 1 is used to emit light for illuminating the workpiece.

[0052] The rotating disk 2 includes an opaque disk body 21 and a plurality of lenses 22. A plurality of mounting holes 211 are arranged in a circumferential array on the opaque disk body 21, and the lenses 22 are installed in the mounting holes 211. The opaque disk body 21 can rotate so that different lenses 22 rotate between the lamp board 12 and the beam splitter 13. The opaque disk body 21 rotates to adjust the position of the lenses 22, so that a suitable lens 22 is between the lamp board 12 and the beam splitter 13, that is, the light needs to pass through the lens 22 and then shine on the beam splitter 13, and then shine on the workpiece. Among them, the lens 22 is a filter or a patterned glass sheet.

[0053] Compared with the coaxial light source in the prior art, the structure in this embodiment can make different lenses 22 between the lamp board 12 and the beam splitter 13 by rotating the opaque disk body 21, thereby changing the light output effect, such as changing the light output color or projecting different images on the surface of the workpiece, so as to better detect the surface defects of the workpiece, which effectively improves the applicable range of the variable light source.

[0054] It should also be added that in this embodiment, the light reflected by the variable light source workpiece can directly pass through the beam splitter 13 and then enter the detection camera, and the light does not need to pass through the filter or the patterned glass sheet twice, so that the image obtained by the detection camera taking pictures is clearer.

[0055] Optionally, the variable light source further includes a rotation driving device 23 for driving the rotating disk 2 to rotate. The opaque disk body 21 is provided with a mounting hole 211, and the rotating shaft of the rotation driving device 23 is inserted and connected with the mounting hole 211. In this embodiment, by adjusting the position of the lens through the rotation driving device 23, that is, a control program can be preset, and the rotation driving device 23 can rotate a certain angle each time, making it more convenient to adjust the position of the lens.

[0056] Optionally, a positioning and blocking part 231 for positioning the opaque disk body 21 is arranged on the rotating shaft, and the positioning and blocking part 231 can be adjusted along the center line direction of the rotating shaft. A fixing part 232 for pressing and fixing the opaque disk body 21 on the positioning and blocking part 231 is also installed on the rotating shaft.

[0057] Specifically, as Figure 1As shown, the opaque disc body 21 can be directly sleeved on the rotating shaft and the opaque disc body 21 is made to abut against the positioning stop portion 231, and then the fixing member 232 is fixed on the rotating shaft and presses the opaque disc body 21 tightly. The fixing member 232 can be a bolt or a nut, or other fastening devices that can press the opaque disc body 21 tightly against the positioning stop portion 231.

[0058] Optionally, the patterned glass sheet includes a substrate 221 and a graphic film layer 222; the graphic in the graphic film layer 222 is an ink-printed graphic. In actual detection, according to actual needs, the required pattern can be printed on the graphic film layer 222, such as Figure 4 the dot array graphic in Figure 5 the concentric circle graphic in Figure 6 the strip texture graphic in Figure 7 and the vertical cross-strip texture graphic in

[0059] Optionally, the housing 11 is provided with an avoidance groove for avoiding the rotating disc 2; the thickness of the avoidance groove is the same as the width of the opaque disc body 21, and the lens 22 does not protrude from the side surface of the opaque disc body 21. Specifically, the thickness of the avoidance groove is the same as the width of the opaque disc body 21, which can reduce light leakage. On the premise that the thickness of the avoidance groove is the same as the width of the opaque disc body 21, the lens 22 does not protrude from the side surface of the opaque disc body 21, which can effectively prevent the lens 22 from being scratched.

[0060] Optionally, the variable light source includes two coaxial light sources 1; when one lens 22 is located between the lamp board 12 and the beam splitter 13 of one coaxial light source 1, the other lens 22 is located between the lamp board 12 and the beam splitter 13 of the other coaxial light source 1; the beam splitters 13 of the two coaxial light sources 1 are perpendicular to each other. Specifically, the two coaxial light sources 1 can illuminate two workpieces at the same time, and these two workpieces can be the same workpiece or different workpieces.

[0061] Optionally, the number of the mounting holes 211 is an even number, and the two lenses 22 symmetrically arranged about the center line of the opaque disc body 21 have the same structure, such as both being color filters of the same color or patterned glass sheets with the same pattern. That is, the two coaxial light sources 1 can illuminate two identical workpieces, and when the rotating disc 2 is rotated, the light output effects of the two coaxial light sources 1 can also be kept consistent.

[0062] Optionally, at least one lens 22 is a color filter, and at least one lens 22 is a patterned glass sheet; the colors of adjacent color filters are different, and the patterns on adjacent patterned glass sheets are different.

[0063] Optionally, the coaxial light source 1 further includes a diffusion plate 14 installed in the housing 11. The diffusion plate 14 is located between the lamp board 12 and the rotating disk 2. The diffusion plate 14 can effectively homogenize the illumination light, making the light output more uniform.

[0064] Embodiment 2

[0065] This embodiment discloses a detection device, which includes a variable light source as described in any one of the above; it further includes a detection camera, and the detection camera faces the beam splitter 13.

[0066] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the essential concept of this application, using the content recorded in the text and drawings of the specification of this application, as well as those directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of this application.

Claims

1. A variable light source, characterized in that, Comprising: A coaxial light source (1), including a housing (11), and a lamp board (12) and a beam splitter (13) both installed in the housing (11), wherein the light emitted by the lamp board (12) passes through the beam splitter (13) and irradiates on the workpiece; A rotating disk (2), including an opaque disk body (21) and a plurality of lenses (22), wherein a plurality of mounting holes (211) are circumferentially arrayed on the opaque disk body (21), the lenses (22) are installed in the mounting holes (211), and the opaque disk body (21) can rotate to enable different lenses (22) to rotate between the lamp board (12) and the beam splitter (13); The lens (22) is a filter or a patterned glass sheet.

2. The variable light source according to claim 1, wherein, It further includes a rotation driving device (23) for driving the rotation of the rotating disk (2); The opaque disk body (21) is provided with a mounting hole (211), and the rotation axis of the rotation driving device (23) is inserted and connected with the mounting hole (211).

3. The variable light source according to claim 2, characterized in that, A positioning stop portion (231) for positioning the opaque disk body (21) is provided on the rotation axis, and the positioning stop portion (231) can adjust its position along the center line direction of the rotation axis; A fixing member (232) for pressing and fixing the opaque disk body (21) on the positioning stop portion (231) is further installed on the rotation axis.

4. The variable light source according to claim 1, wherein, The patterned glass sheet includes a substrate (221) and a graphic film layer (222); The graphic in the graphic film layer (222) is an ink-printed graphic.

5. The variable light source according to claim 1, characterized in that, The housing (11) is provided with an avoidance groove for avoiding the rotating disk (2); The thickness of the avoidance groove is the same as the width of the opaque disk body (21), and the lens (22) does not protrude from the side surface of the opaque disk body (21).

6. The variable light source according to claim 1, characterized in that, It includes two of the coaxial light sources (1); When one lens (22) is located between the lamp board (12) and the beam splitter (13) of one coaxial light source (1), the other lens (22) is located between the lamp board (12) and the beam splitter (13) of the other coaxial light source (1); The beam splitters (13) of the two coaxial light sources (1) are perpendicular to each other.

7. The variable light source according to claim 1, wherein The number of the mounting holes (211) is an even number, and the two lenses (22) symmetrically arranged about the center line of the opaque disk body (21) have the same structure.

8. The variable light source according to claim 1, characterized in that At least one of the lenses (22) is a filter, and at least one of the lenses (22) is a patterned glass sheet; the colors of adjacent filters are different, and the patterns on adjacent patterned glass sheets are different.

9. The variable light source according to claim 1, wherein, The coaxial light source (1) further includes a diffusion plate (14) installed in the housing (11), and the diffusion plate (14) is located between the lamp board (12) and the rotating disk (2).

10. A detection device, characterized in that, It includes a variable light source as described in any one of claims 1 to 9; It further includes a detection camera, and the detection camera faces the beam splitter (13).

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