Polishing device for circuit board, detection equipment for circuit board and circuit board processing system

Abstract

The utility model relates to the technical field of circuit board processing equipment, in particular to a polishing device for a circuit board, detection equipment for the circuit board and a circuit board processing system. The lighting device comprises a lamp box, a coaxial assembly, a gradient assembly and a fluorescent assembly. The lamp box is provided with a light outlet and a view finding opening which are communicated with the containing cavity. The coaxial assembly is arranged in the containing cavity and located on one side of a light path of the coaxial assembly, the gradient assembly is arranged in the containing cavity, a light path of the gradient assembly faces the light outlet, and the light path of the gradient assembly and the light path of the coaxial assembly are arranged in parallel and / or form an included angle; the fluorescent assembly is arranged in the containing cavity and used for outputting fluorescent light rays towards the light outlet. According to the lighting device for the circuit board, the fluorescent assembly is arranged to be matched with the coaxial assembly and the gradient assembly, metal materials can be illuminated to generate the fluorescent effect, and therefore the imaging effect of the lighting device on small defects and residual metal subjected to incomplete etching is improved, and the detection accuracy of the lighting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing equipment, in particular to a circuit board lighting device, a circuit board detection device and a circuit board processing system. Background Art

[0002] With the rapid development of electronic technology, printed circuit boards (PCBs) are increasingly used in various electronic products. The quality of PCBs directly affects the performance and life of electronic products. Therefore, it is very important to conduct quality inspection on PCBs.

[0003] However, in actual applications, due to the differences in PCB thickness and material, the areas and angles that need to be supplemented with light may be different for PCBs of different materials and thicknesses. However, the supplementary light effect of the lighting device in the prior art is poor, mainly reflected in the inability to effectively image small defects and residual metals left by etching, thereby affecting the accuracy of PCB quality inspection.

[0004] Therefore, it is necessary to make improvements to the above problems in order to change the current situation. Utility Model Content

[0005] The utility model provides a circuit board lighting device, circuit board detection equipment and a circuit board processing system, which are used to solve the problem that the lighting device in the existing PCB processing equipment has poor fill light effect and is easy to affect the accuracy of PCB quality detection.

[0006] The utility model provides a lighting device for a circuit board, comprising:

[0007] A light box, wherein a receiving cavity is provided inside, and the light box is respectively provided with a light outlet and a viewing port connected to the receiving cavity;

[0008] A coaxial component is disposed in the accommodating cavity, and the optical path of the coaxial component is toward the light outlet;

[0009] A slope component is arranged in the accommodating cavity and is located on one side of the optical path of the coaxial component, and the optical path of the slope component faces the light outlet, and the optical path of the slope component is parallel to and / or at an angle to the optical path of the coaxial component; and

[0010] The fluorescent component is arranged in the accommodating cavity and is used for outputting fluorescent light toward the light outlet.

[0011] According to one embodiment of the utility model, the coaxial assembly includes a coaxial light source and a beam splitter lens, the beam splitter lens is installed on the light box, the coaxial light source is arranged on one side of the beam splitter lens, and the beam splitter lens is located on the optical path of the coaxial light source, and the light emitted by the coaxial light source is reflected and refracted by the beam splitter lens, and at least part of the light is transmitted toward the light outlet and the viewfinder respectively.

[0012] According to an embodiment of the utility model, the coaxial assembly further includes an amplifying lens, which is connected to the light box and is arranged between the coaxial light source and the beam splitter lens along the optical path of the coaxial light source.

[0013] According to one embodiment of the utility model, the slope component includes a first slope light source and a second slope light source, the optical path of the first slope light source and the optical path of the second slope light source are arranged in parallel and are respectively located on the outside of the optical path of the coaxial component, or the optical path of the first slope light source and the optical path of the second slope light source are arranged at an angle.

[0014] According to one embodiment of the utility model, the slope component also includes a first diffuse reflection sheet and a second diffuse reflection sheet, the first diffuse reflection sheet is arranged between the first slope light source and the light outlet along the light path of the first slope light source, and the second diffuse reflection sheet is arranged between the second slope light source and the light outlet along the light path of the second slope light source.

[0015] According to one embodiment of the utility model, the light box is also provided with a first slope adjustment groove and a second slope adjustment groove, the first slope light source is connected to the first slope adjustment groove via a fastener, the second slope light source is connected to the second slope adjustment groove via a fastener, one of the first slope adjustment groove and the second slope adjustment groove is an arc groove, and the other is a strip groove, or the first slope adjustment groove and the second slope adjustment groove are both strip grooves or both are arc grooves.

[0016] According to one embodiment of the utility model, the fluorescent component includes a fluorescent light source and a fluorescent mounting frame, the light box is also provided with a fluorescent adjustment groove, the fluorescent mounting frame is adjustably connected to the light box, the fluorescent light source is arranged on the fluorescent mounting frame, and the fluorescent mounting frame is detachably connected to the light box via fasteners, and the fluorescent adjustment groove is an arc groove or a strip groove.

[0017] According to an embodiment of the present invention, the fluorescent light source is a purple light source.

[0018] The utility model also provides a circuit board detection device, comprising:

[0019] A lighting device as described in any one of the above items; and

[0020] The image sensor is connected to the lighting device and is arranged at the viewfinder.

[0021] The utility model also provides a circuit board processing system, comprising:

[0022] A lighting device as described in any one of the above items, or a circuit board detection device as described in any one of the above items;

[0023] Processing equipment, used for processing the circuit board, the polishing device is arranged upstream and / or downstream of the processing equipment; and

[0024] The image taking device is installed in the vertical direction of the lighting device and close to one side of the viewfinder. The image taking device detects the brightness provided by the circuit board through the lighting device.

[0025] Implementing the embodiments of the utility model has the following beneficial effects:

[0026] In the circuit board lighting device of the present embodiment, by arranging a fluorescent component in cooperation with a coaxial component and a slope component, the metal material can be illuminated to produce a fluorescent effect, thereby improving the lighting device's imaging effect on small defects and metal with unclean etching residues, thereby improving the detection accuracy of the lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] in:

[0029] Figure 1 It is a structural schematic diagram of a lighting device in an embodiment of the utility model;

[0030] Figure 2 It is a schematic cross-sectional structure diagram of a lighting device in an embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the light path of the lighting device in the embodiment of the utility model;

[0032] Reference numerals:

[0033] 10. Lighting device; 100. Light box; 110. Accommodating cavity; 111. Light outlet; 112. Viewfinder; 120. First slope adjustment slot; 130. Second slope adjustment slot; 140. Fluorescence adjustment slot; 200. Coaxial assembly; 210. Coaxial light source; 220. Beam splitter; 230. Intensifying lens; 300. Slope assembly; 310. First slope light source; 320. First diffuse reflection sheet; 330. Second slope light source; 340. Second diffuse reflection sheet; 400. Fluorescent assembly; 410. Fluorescent light source; 420. Fluorescent mounting bracket. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figures 1 to 3 As shown, an embodiment of the utility model provides a lighting device 10 for a circuit board, which includes a light box 100, a coaxial component 200, a slope component 300 and a fluorescent component 400; a accommodating cavity 110 is provided inside the light box 100, and the light box 100 is respectively provided with a light outlet 111 and a viewfinder 112 connected to the accommodating cavity 110 in a vertical direction; the coaxial component 200 is arranged in the accommodating cavity 110, and the light path of the coaxial component 200 is toward the light outlet 111; the slope component 300 is arranged in the accommodating cavity 110, and the light path of the slope component 300 is toward the light outlet 111, and the light path of the slope component 300 is parallel to and / or arranged at an angle to the light path of the coaxial component 200, and is located on one side of the light path of the coaxial component 200; the fluorescent component 400 is arranged in the accommodating cavity 110, and the fluorescent component 400 is used to output fluorescent light toward the light outlet 111.

[0036] In the circuit board lighting device 10 of the present embodiment, by setting the fluorescent component 400 in cooperation with the coaxial component 200 and the slope component 300, the metal material can be illuminated to produce a fluorescent effect, thereby improving the lighting device 10 for small defects and metal imaging effects of etching residues, thereby improving the detection accuracy of the lighting device 10.

[0037] Specifically, see Figure 2As shown, the coaxial assembly 200 includes a coaxial light source 210 and a beam splitter 220. The beam splitter 220 is connected to the light box 100. The coaxial light source 210 is arranged on one side of the beam splitter 220, and the beam splitter 220 is located on the optical path of the coaxial light source 210. After the light emitted by the coaxial light source 210 is reflected and refracted by the beam splitter 220, at least part of the light is transmitted toward the light outlet 111 and the viewfinder 112 respectively.

[0038] In this embodiment, the coaxial light source 210 is used to illuminate the product at the light outlet 111 in a forward direction to illuminate the front of the product, so that the image sensor provided at the viewfinder 112 can obtain the image signal of the product; in one embodiment, the coaxial light source 210 can use a 500w double-row lamp bead light source to ensure the illumination intensity of the coaxial light source 210. By setting the beam splitter 220 to cooperate with the coaxial light source 210, the light emitted by the coaxial light source 210 can be at least partially transmitted toward the light outlet 111 and the viewfinder 112 respectively after passing through the beam splitter 220 to achieve the beam splitting function.

[0039] Furthermore, the coaxial assembly 200 further includes an amplifying lens 230, which is connected to the light box 100 and is disposed between the coaxial light source 210 and the beam splitter lens 220 along the optical path of the coaxial light source 210. By disposing the amplifying lens 230 between the beam splitter lens 220 and the coaxial light source 210, the amplifying lens 230 can effectively increase the light intensity of the coaxial light source 210.

[0040] In one embodiment, the slope component 300 includes a first slope light source 310 and a second slope light source 330, and the optical path of the first slope light source 310 and the optical path of the second slope light source 330 are arranged in parallel and are respectively located on the outside of the optical path of the coaxial component 200, or the optical path of the first slope light source 310 and the optical path of the second slope light source 330 are arranged at an angle.

[0041] In this configuration, when the first slope light source 310 and the second slope light source 330 are started, they can illuminate different slopes of the product surface respectively to improve the edge clarity of the product, thereby improving the detection accuracy of the lighting device 10. Of course, in some embodiments, the number of slope light sources can also be three or more, and the shooting angle of the slope component 300 can be increased by increasing the number of slope light sources, thereby effectively improving the detection accuracy of the lighting device 10.

[0042] Specifically, the slope component 300 also includes a first diffuse reflection sheet 320 and a second diffuse reflection sheet 340. The first diffuse reflection sheet 320 is arranged between the first slope light source 310 and the light outlet 111 along the light path of the first slope light source 310, and the second diffuse reflection sheet 340 is arranged between the second slope light source 330 and the light outlet 111 along the light path of the second slope light source 330.

[0043] It can be understood that by setting a first diffuse reflection sheet 320 between the first slope light source 310 and the light outlet 111, and setting a second diffuse reflection sheet 340 between the second slope light source 330 and the light outlet 111, the light emitted by the first slope light source 310 and the second slope light source 330 can be in a diffuse reflection state, which can effectively improve the illumination uniformity of the slope component 300.

[0044] Furthermore, the light box 100 is also provided with a first slope adjustment groove 120 and a second slope adjustment groove 130, the first slope light source 310 is connected to the first slope adjustment groove 120 through fasteners, the second slope light source 330 is connected to the second slope adjustment groove 130 through fasteners, the first slope adjustment groove 120 is an arc groove, and the second slope adjustment groove 130 is a strip groove, or the first slope adjustment groove 120 and the second slope adjustment groove 130 are strip grooves or arc grooves.

[0045] See also Figure 2 In the illustrated embodiment, the first slope adjustment groove 120 is an arc groove, and the second slope adjustment groove 130 is a strip groove. When the lighting angle of the first slope light source 310 needs to be adjusted, the fastener connected to the first slope light source 310 is loosened to release the first slope light source 310, and then the first slope light source 310 can be rotated along the first slope adjustment groove 120 to reach a preset position, and then the first slope light source 310 is fixed by the fastener; similarly, the relative position between the second slope light source 330 and the light box 100 can be adjusted by loosening the fastener. In other embodiments, the first slope adjustment groove 120 and the second slope adjustment groove 130 can also be different from or at least partially the same as those in the above embodiments, and are specifically adjusted according to the design requirements of the lighting device 10, which will not be described in detail here.

[0046] Specifically, the fluorescent component 400 includes a fluorescent light source 410 and a fluorescent mounting frame 420. The light box 100 is also provided with a fluorescent adjustment groove 140. The fluorescent mounting frame 420 is adjustably connected to the light box 100. The fluorescent light source 410 is arranged on the fluorescent mounting frame 420, and the fluorescent mounting frame 420 is detachably connected to the light box 100 through fasteners. The fluorescent adjustment groove 140 is an arc groove or a strip groove.

[0047] With this arrangement, when the lighting direction of the fluorescent assembly 400 needs to be adjusted, the direction of the fluorescent light source 410 can be adjusted by rotating the fastener in the fluorescent adjustment slot 140 .

[0048] In a preferred embodiment, the fluorescent light source 410 is a violet light source.

[0049] It can be understood that by using purple light as the illumination light source of the fluorescent light source 410, the imaging effect of the fluorescent component 400 on small defects and residual metals that are not etched cleanly can be effectively improved.

[0050] The utility model further provides a circuit board detection device, which includes the lighting device 10 and an image sensor in any one of the above embodiments; the image sensor is connected to the lighting device 10, and the image sensor is arranged at the viewfinder 112.

[0051] It can be understood that in the circuit board inspection equipment of the present embodiment, by setting the lighting device 10 in any one of the above embodiments, the lighting device 10 can illuminate the metal material to produce a fluorescent effect by setting the fluorescent component 400 in cooperation with the coaxial component 200 and the slope component 300, thereby improving the lighting device 10 for small defects and metal imaging effects of etching residues, thereby improving the detection accuracy of the inspection equipment.

[0052] The utility model also provides a circuit board processing system, which includes a lighting device 10 or a detection device, a processing device and a picture-taking device in any one of the above-mentioned embodiments; the processing device is used to process the circuit board, and the lighting device 10 is arranged upstream and / or downstream of the processing device; the picture-taking device is installed in the vertical direction of the lighting device 10 and close to one side of the viewfinder 112, and the picture-taking device detects the brightness provided by the lighting device 10 to the circuit board.

[0053] It can be understood that in the circuit board processing system of the present embodiment, by setting the lighting device 10 in any one of the above embodiments, the lighting device 10 can illuminate the metal material to produce a fluorescent effect by setting the fluorescent component 400 in cooperation with the coaxial component 200 and the slope component 300, thereby improving the lighting device 10 for small defects and metal imaging effects of etching residues, thereby improving the detection accuracy of the circuit board processing system, so as to improve the yield rate of the circuit board processing system.

[0054] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0055] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0056] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A lighting device for a circuit board, characterized in that: include: A light box, wherein a receiving cavity is provided inside, and the light box is respectively provided with a light outlet and a viewing port connected to the receiving cavity; A coaxial component is disposed in the accommodating cavity, and the optical path of the coaxial component is toward the light outlet; A slope component is arranged in the accommodating cavity and is located on one side of the optical path of the coaxial component, and the optical path of the slope component faces the light outlet, and the optical path of the slope component is parallel to and / or at an angle to the optical path of the coaxial component; and The fluorescent component is arranged in the accommodating cavity and is used for outputting fluorescent light toward the light outlet.

2. The circuit board lighting device according to claim 1, characterized in that: The coaxial assembly includes a coaxial light source and a beam splitter lens, the beam splitter lens is installed on the light box, the coaxial light source is arranged on one side of the beam splitter lens, and the beam splitter lens is located on the light path of the coaxial light source, and after the light emitted by the coaxial light source is reflected and refracted by the beam splitter lens, at least part of the light is transmitted toward the light outlet and the viewfinder respectively.

3. The circuit board lighting device according to claim 2, characterized in that: The coaxial assembly further comprises an amplifying lens, which is connected to the light box and is arranged between the coaxial light source and the beam splitter lens along the optical path of the coaxial light source.

4. The circuit board lighting device according to claim 1, characterized in that: The slope component includes a first slope light source and a second slope light source. The optical paths of the first slope light source and the second slope light source are arranged in parallel and are respectively located outside the optical path of the coaxial component, or the optical paths of the first slope light source and the second slope light source are arranged at an angle.

5. The circuit board lighting device according to claim 4, characterized in that: The slope component also includes a first diffuse reflection sheet and a second diffuse reflection sheet. The first diffuse reflection sheet is arranged between the first slope light source and the light outlet along the light path of the first slope light source, and the second diffuse reflection sheet is arranged between the second slope light source and the light outlet along the light path of the second slope light source.

6. The circuit board lighting device according to claim 4, characterized in that: The light box is also provided with a first slope adjustment groove and a second slope adjustment groove, the first slope light source is connected to the first slope adjustment groove via a fastener, the second slope light source is connected to the second slope adjustment groove via a fastener, one of the first slope adjustment groove and the second slope adjustment groove is an arc groove, the other is a strip groove, or the first slope adjustment groove and the second slope adjustment groove are both strip grooves or both are arc grooves.

7. The circuit board lighting device according to claim 1, characterized in that: The fluorescent component includes a fluorescent light source and a fluorescent mounting frame. The light box is also provided with a fluorescent adjustment slot. The fluorescent mounting frame is adjustably connected to the light box. The fluorescent light source is arranged on the fluorescent mounting frame. The fluorescent mounting frame is detachably connected to the light box via fasteners. The fluorescent adjustment slot is an arc-shaped slot or a strip-shaped slot.

8. The circuit board lighting device according to claim 7, characterized in that: The fluorescent light source is a violet light source.

9. A circuit board testing device, characterized in that: include: The lighting device according to any one of claims 1 to 8; as well as The image sensor is connected to the lighting device and is arranged at the viewfinder.

10. A circuit board processing system, characterized in that: include: The lighting device according to any one of claims 1 to 8, or the circuit board detection equipment according to claim 9; Processing equipment, used for processing the circuit board, the polishing device is arranged upstream and / or downstream of the processing equipment; and The image taking device is installed in the vertical direction of the lighting device and close to one side of the viewfinder. The image taking device detects the brightness provided by the circuit board through the lighting device.

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