A combination light source device and a circuit board inspection device

Abstract

This utility model relates to the field of light source structures, and discloses a combined light source device and a circuit board inspection device, including a support shell, a line scan light source, a beam splitter module, and several strip light sources. A strip-shaped hole is formed on the support shell. The line scan light source is installed on one side of the top of the support shell. The beam splitter module reflects part of the light emitted by the line scan light source, and the light reflected by the beam splitter module passes through the strip-shaped hole to be directed towards the workpiece. Several strip light sources are also installed in the support shell, all of which are mounted on the support shell and arranged at intervals along an arc. The rotation angles of the strip light sources and the beam splitter module are individually adjustable. This utility model's combined light source and circuit board inspection device can adapt to the inspection of circuit boards of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of light sources, and in particular to a combined light source device and a circuit board testing device. Background Technology

[0002] With social development and technological advancements, people have increasingly higher requirements for light source devices. Taking circuit boards as an example, the production process requires the inspection of characters and solder joints. The existing inspection process consists of two steps: one step involves photographing and inspecting characters under the illumination of an online scanning light source, and the other step involves photographing and inspecting solder joints under the illumination of a bar light source. These inspection steps require separate setups for the first and second light sources, necessitating two separate machines. Generally, only a single specification of workpiece can be inspected, which is detrimental to improving inspection efficiency and increases the floor space required for the inspection equipment.

[0003] Therefore, it is necessary to design a combined light source device and a circuit board testing device.

[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0005] This utility model provides a combined light source device and a circuit board testing device, which can integrate multiple light source structures and adapt to the testing of circuit boards of different specifications.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A combined light source device includes a support shell, a line scan light source, a beam splitter module, and several strip light sources;

[0008] A strip-shaped hole is formed on the support shell. The line scan light source is installed on one side of the top of the support shell. The beam splitter module reflects part of the light emitted by the line scan light source, and the light reflected by the beam splitter module passes through the strip-shaped hole to be directed toward the workpiece.

[0009] The support shell also contains a number of strip light sources, all of which are mounted on the support shell and are arranged at intervals along an arc.

[0010] The rotation angles of the strip light source and the beam splitter module are each individually adjustable.

[0011] Optionally, the beam splitter module includes a bottom frame plate, a beam splitter lens, a top frame plate, and two end sealing plates, wherein the bottom frame plate, the top frame plate, and the end sealing plates form a frame for fixing the beam splitter lens;

[0012] The frame is rotatably connected to the end top frame plate of the line scan light source via a rotating shaft, and the end top frame plate is provided with an arc-shaped adjustment hole around the rotating shaft. The adjustment component extends into the arc-shaped adjustment hole and is threadedly connected to the frame.

[0013] Optionally, all bar light sources are divided into a first light group and a second light group, and both the first light group and the second light group include at least two of the aforementioned bar light sources;

[0014] The first light group and the second light group are located at the bottom of the strip hole, and the first light group and the second light group are separated by the strip hole.

[0015] Optionally, the ends of all the strip light sources are rotatably connected to the side plates of the support housing via mounting shafts;

[0016] The side plate is provided with a mounting hole for mounting the mounting shaft, and an arc-shaped adjustment through hole is provided around the mounting hole. The fastener extends into the arc-shaped adjustment through hole and is threadedly connected to the strip light source.

[0017] Optionally, a damping shaft assembly is connected to the end of the strip light source;

[0018] The support shell is provided with an adjustment hole, and the damping shaft assembly is inserted into the adjustment hole; the damping shaft assembly can rotate relative to the adjustment hole and can maintain the position of the strip light source.

[0019] Optionally, the support shell forms an arc-shaped flow gap;

[0020] Several strip light sources are arranged around the arc-shaped flow gap, and the light-emitting ends of the strip light sources face the arc-shaped flow gap.

[0021] Optionally, a set of cooling fans is provided on each of the opposite sides of the support shell;

[0022] The cooling fans all have the same airflow direction.

[0023] Optionally, the rotation axis of the line scan light source is parallel to the rotation axis of the bar light source.

[0024] A circuit board testing device includes a combined light source device as described in any of the preceding claims.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The combined light source device provided by this utility model allows the light from the line-scanning light source to pass through the beam splitter module and exit through the strip-shaped aperture, thus scanning across the surface of the workpiece (i.e., the circuit board), facilitating camera detection of characters. Furthermore, the light from the strip-shaped light source can be projected onto the workpiece surface, also facilitating camera detection of characters. Additionally, since the rotation angles of the strip-shaped light source and the beam splitter module are individually adjustable, the illumination area can be changed to meet the detection needs of workpieces of different sizes. The structure in this embodiment eliminates the need for transferring workpieces during the detection process, improving detection efficiency and significantly reducing the equipment's footprint.

[0027] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0028] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an exploded view of the combined light source device provided in an embodiment of this utility model;

[0030] Figure 2 This is a side view schematic diagram of the combined light source device provided in an embodiment of this utility model;

[0031] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the combined light source device along line AA;

[0032] Figure 4 This is a schematic diagram of the side plate provided in an embodiment of the present utility model.

[0033] Reference numerals: 1. Support shell; 101. Arc-shaped flow notch; 11. Strip hole; 12. Side plate; 121. Mounting hole; 122. Arc-shaped adjustment through hole; 2. Line scan light source; 3. Beam splitter module; 31. Bottom frame plate; 32. Beam splitter lens; 33. Top frame plate; 4. Strip light source; 5. Cooling fan. Detailed Implementation

[0034] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0035] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0036] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0037] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0038] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0039] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0040] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0041] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply 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, they should not be construed as limitations on the embodiments of this application.

[0042] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "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 a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0043] Example 1

[0044] In view of the shortcomings of the existing combined light source devices, the applicant, based on years of practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a solution to the shortcomings of the existing technology and make the combined light source device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0045] Please refer to Figures 1 to 4 This utility model provides a combined light source device, including a support shell 1, a line scan light source 2, a beam splitter module 3, and several strip light sources 4.

[0046] A strip-shaped hole 11 is formed on the support shell 1. A line scan light source 2 is installed on one side of the top of the support shell 1. A beam splitter module 3 reflects part of the light emitted by the line scan light source 2, and the light reflected by the beam splitter module 3 passes through the strip-shaped hole 11 to be directed toward the workpiece. Several strip light sources 4 are also installed in the support shell 1. All the strip light sources 4 are installed on the support shell 1 and are arranged at intervals along an arc. The rotation angles of the strip light sources 4 and the beam splitter module 3 are individually adjustable.

[0047] It should be noted that the light emitted from the line scan light source 2 is reflected by the beam splitter module 3 and projected downwards onto the surface of the workpiece, facilitating character detection by the camera. The bar light source 4 forms multiple areas, projecting onto the solder joint area of ​​the workpiece, facilitating the detection of solder joint quality. It should also be noted that because the beam splitter module 3 can be rotated to adjust its angle, the position of the line scan light can be adjusted, and the position of the light spot of the bar light source 4 can be adjusted by rotation, thus meeting the detection needs of workpieces of various specifications. It should be explained that the areas where characters and solder joints are located are generally different for workpieces of different specifications. The combined light source device in this embodiment can adapt to the detection of circuit boards of different specifications. The combined light source also has the following advantages: it eliminates the need to transfer the workpiece to another machine during the detection process, significantly improving detection efficiency; and it integrates the light source structure, reducing the equipment's footprint.

[0048] In this embodiment, the rotation axis of the line scan light source 2 is parallel to the rotation axis of the bar light source 4.

[0049] Optionally, the beam splitter module 3 includes a bottom frame plate 31, a beam splitter lens 32, a top frame plate 33, and two end sealing plates. The bottom frame plate 31, top frame plate 33, and end sealing plates form a frame for fixing the beam splitter lens 32. The frame is rotatably connected to the end top frame plate 33 of the line scan light source 2 via a rotation axis, and the end top frame plate 33 is provided with an arc-shaped adjustment hole around the rotation axis. An adjustment member extends into the arc-shaped adjustment hole and is threadedly connected to the frame. In this embodiment, the adjustment member can be loosened first, and then the tilt angle of the beam splitter module 3 can be adjusted around the rotation axis to achieve the purpose of adjusting the position of the line scan spot. A more favorable position of the line scan spot is beneficial to improving the camera's image detection accuracy. Both the bottom frame plate 31 and the top frame plate 33 are hollowed out to facilitate camera image detection.

[0050] Optionally, all the strip light sources 4 are divided into a first light group and a second light group, and each of the first light group and the second light group includes at least two strip light sources 4; the first light group and the second light group are located at the bottom of the strip aperture 11, and the first light group and the second light group are separated by the strip aperture 11.

[0051] like Figure 3 As shown, the three strip light sources 4 on the left form the first light group, the three strip light sources 4 on the right form the second light group, and the middle position is both the emission position of the line scan light spot and the position of the camera at the top.

[0052] Optionally, all ends of the strip light sources 4 are rotatably connected to the side plate 12 of the support shell 1 via mounting shafts. The side plate 12 is provided with mounting holes 121 for mounting the mounting shafts, and an arc-shaped adjustment through hole 122 is provided around the mounting hole 121. Fasteners extend into the arc-shaped adjustment through hole 122 and are threadedly connected to the strip light sources 4. In this embodiment, loosening the fasteners adjusts the light emission direction of the strip light sources 4, and then tightening the fasteners again. Adjusting the strip light sources 4 is simple and convenient.

[0053] Optionally, a damping shaft assembly is connected to the end of the strip light source 4; the support shell 1 is provided with an adjustment hole, and the damping shaft assembly is inserted into the adjustment hole; the damping shaft assembly can rotate relative to the adjustment hole and can maintain the position of the strip light source 4. In this embodiment, the rotation angle is adjusted by the damping shaft assembly, and the damping effect generated between the damping shaft assembly and the adjustment hole can maintain the position of the strip light source 4.

[0054] Optionally, the support shell 1 has an arc-shaped flow gap 101; a plurality of strip light sources 4 are arranged around the arc-shaped flow gap 101, and the light-emitting ends of the strip light sources 4 face the arc-shaped flow gap 101. The workpiece can enter the detection position along the arc-shaped flow gap 101.

[0055] Optionally, a set of cooling fans 5 is provided on each of the opposite sides of the support shell 1; the cooling fans 5 have the same airflow direction. The air blown out by the cooling fans 5 is used to dissipate heat from the strip light source 4, reducing the possibility of the strip light source 4 overheating. In this embodiment, the cooling fans 5 have the same airflow direction, which can improve the ventilation effect, thereby improving the heat dissipation effect.

[0056] Example 2

[0057] This embodiment discloses a circuit board testing device, including a combined light source device as described in any of the preceding embodiments.

[0058] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A combined light source device, characterized in that, It includes a support shell, a line scan light source, a beam splitter module, and several strip light sources; A strip-shaped hole is formed on the support shell. The line scan light source is installed on one side of the top of the support shell. The beam splitter module reflects part of the light emitted by the line scan light source, and the light reflected by the beam splitter module passes through the strip-shaped hole to be directed toward the workpiece. The support shell also contains a number of strip light sources, all of which are mounted on the support shell and are arranged at intervals along an arc. The rotation angles of the strip light source and the beam splitter module are individually adjustable.

2. The combined light source device according to claim 1, characterized in that, The beam splitter module includes a bottom frame plate, beam splitter lenses, a top frame plate, and two end sealing plates. The bottom frame plate, the top frame plate, and the end sealing plates form a frame for fixing the beam splitter lenses. The frame is rotatably connected to the end top frame plate of the line scan light source via a rotating shaft, and the end top frame plate is provided with an arc-shaped adjustment hole around the rotating shaft. The adjustment component extends into the arc-shaped adjustment hole and is threadedly connected to the frame.

3. The combined light source device according to claim 1, characterized in that, All bar light sources are divided into a first light group and a second light group, and each of the first light group and the second light group includes at least two of the aforementioned bar light sources; The first light group and the second light group are located at the bottom of the strip hole, and the first light group and the second light group are separated by the strip hole.

4. The combined light source device according to claim 1, characterized in that, All the ends of the bar light sources are rotatably connected to the side plate of the support shell via mounting shafts; The side plate is provided with a mounting hole for mounting the mounting shaft, and an arc-shaped adjustment through hole is provided around the mounting hole. The fastener extends into the arc-shaped adjustment through hole and is threadedly connected to the strip light source.

5. The combined light source device according to claim 1, characterized in that, The end of the strip light source is connected to a damping shaft assembly; The support shell is provided with an adjustment hole, and the damping shaft assembly is inserted into the adjustment hole; the damping shaft assembly can rotate relative to the adjustment hole and can maintain the position of the strip light source.

6. The combined light source device according to claim 1, characterized in that, The supporting shell forms an arc-shaped flow gap; Several strip light sources are arranged around the arc-shaped flow gap, and the light-emitting ends of the strip light sources face the arc-shaped flow gap.

7. The combined light source device according to claim 1, characterized in that, A set of cooling fans is provided on each of the opposite sides of the support shell; The cooling fans all have the same airflow direction.

8. The combined light source device according to claim 1, characterized in that, The rotation axis of the line scan light source is parallel to the rotation axis of the bar light source.

9. A circuit board testing device, characterized in that, It includes a combined light source device as described in any one of claims 1 to 8.

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