Reflective ball top inspection device

Abstract

The utility model belongs to loudspeaker ball top production technical field, concretely relates to a reflection type ball top inspection device, and the device includes: support mechanism, it includes an oblique setting support plate, and the upper surface both sides of support plate symmetry is equipped with a plurality of support holes, wherein two symmetrical support holes are suitable for accommodating corresponding support pin, and then support transparent base paper when transparent base paper is placed on the support plate, reflection mechanism is set in the below of support mechanism, wherein the upper end surface of bottom plate in reflection mechanism is provided with reflector, and one long side of bottom plate is connected with one long side of support plate bearing, and observation mechanism, it includes observation board, and one side of observation board towards support plate is provided with observation mirror.

Description

Technical Field

[0001] This utility model belongs to the field of loudspeaker dome manufacturing technology, specifically relating to a reflective dome inspection device. Background Technology

[0002] During the manufacturing process of the tweeter, the high-toughness aluminum-based superalloy tweeter dome (hereinafter referred to as "dome") is precisely pasted onto a special backing paper. Subsequently, the staff needs to inspect several domes pasted on the backing paper.

[0003] The appearance inspection of the dome is generally carried out by manual visual inspection. The dome needs to be checked for its appearance on both sides to see if there are any defects. The backing paper is usually transparent. After manually observing the front of each dome, the backing paper is flipped over to observe the back side. Finally, the defective products are removed from the backing paper by hand or tweezers.

[0004] However, for some domes with low adhesive peel strength, the backing paper will inevitably bend during manual flipping, causing the dome to fall off and become damaged.

[0005] Therefore, a reflective dome inspection device is designed to solve the technical problem in the prior art where the dome, which has low adhesive peeling force due to bending of the backing paper, falls off and is damaged when the backing paper is flipped for observation.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0007] This disclosure provides at least one reflective dome inspection device.

[0008] In a first aspect, embodiments of this disclosure provide a reflective dome inspection device, comprising: The support mechanism includes an inclined support plate, and the upper surface of the support plate has a plurality of support holes symmetrically formed on both sides; wherein The two symmetrical support holes are adapted to receive corresponding support pins, thereby supporting the transparent backing paper when it is placed on the support plate; The reflective mechanism is located below the support mechanism; among which... A reflector is provided on the upper surface of the base plate in the reflection mechanism, and one long side of the base plate is connected to one long side of the support plate by a bearing; and An observation mechanism includes an observation plate, and an observation mirror is provided on the side of the observation plate facing the support plate; wherein... The angle between the observation mirror and the reflecting mirror is 90°.

[0009] In one optional embodiment, the upper end face of the base plate is provided with a receiving groove to accommodate the reflector; A pair of first connecting bolts and a pair of second connecting bolts are respectively provided on both sides of the base plate.

[0010] In one alternative embodiment, a pair of the first connecting bolts are adapted to be inserted into both sides of the base plate and connected to the observation plate bearing, respectively; and A pair of second connecting bolts are adapted to be inserted into both sides of the base plate and connected to the bearing of the support plate, respectively.

[0011] In one optional embodiment, a slope is provided at the overlapping edge of the base plate and the support plate; wherein When the support plate rotates, its edge contacts the inclined surface to achieve physical limitation.

[0012] In one optional embodiment, a through channel is provided in the center of the support plate, and a transparent acrylic plate is embedded in the through channel; The upper surface of the support plate is provided with a storage position to accommodate each support pin.

[0013] In one optional embodiment, the support plate has support connection holes on both sides to be adapted to the corresponding second connecting bolts.

[0014] In one optional embodiment, the observation plate has a mounting groove on its end face facing the support plate to accommodate an observation mirror; and The observation plate has observation connection holes on both sides to be compatible with the corresponding first connecting bolts.

[0015] The beneficial effect of this utility model is that by setting a reflector below the support plate and an observation mirror on one side of the reflector, the bottom view of the transparent backing paper placed on the support plate is reflected by the observation mirror, so that the staff can directly observe the bottom surface of the backing paper without flipping the transparent backing paper, that is, whether there are any defects on the bottom surface of each dome.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific 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 from these drawings without creative effort.

[0019] Figure 1 A perspective view of the overall reflective dome inspection device provided in the embodiments of this disclosure; Figure 2 This is a schematic diagram of the front and back images of the dome provided in an embodiment of this disclosure; Figure 3 This is an exploded view of the reflective dome inspection device provided in an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the assembly of the reflective dome inspection device provided in the embodiments of this disclosure; Figure 5 This is a folding schematic diagram of the reflective dome inspection device provided in the embodiments of this disclosure; Figure 6 This is a schematic diagram of the folded reflective dome inspection device provided in an embodiment of this disclosure.

[0020] In the picture: 1. Reflecting mechanism; 10. Base plate; 100. Receiving groove; 11. First connecting bolt; 12. Second connecting bolt; 13. Reflector; 14. Inclined surface; 2. Support mechanism; 20. Support plate; 200. Through channel; 21. Transparent acrylic sheet; 22. Storage position; 23. Support pin; 24. Support hole; 25. Support connection hole; 3. Observation mechanism; 30. Observation plate; 300. Mounting slot; 31. Observation mirror; 32. Observation connection hole; 4. Transparent backing paper; 40. Dome; 5. View from human eye; 50. Frontal view of the dome; 51. Back view of the dome. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0023] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0024] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0025] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0026] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0027] Research has found that the appearance inspection of dome tops generally relies on manual visual inspection. The dome tops need to be checked for both the front and back to see if there are any defects. The backing paper is usually transparent. After manually inspecting the front of each dome top, the backing paper is flipped over to inspect the back. Finally, defective products are peeled off from the backing paper by hand or tweezers. However, for some dome tops with low adhesive peel strength, the backing paper will inevitably bend during the manual flipping process, causing the dome top to fall off and become damaged.

[0028] Based on the above research, this disclosure provides a reflective dome inspection device. By setting a reflector below the support plate and an observation mirror on one side of the reflector, the bottom view of the transparent backing paper placed on the support plate is reflected by the observation mirror. Ultimately, this allows the staff to directly observe the bottom surface of the backing paper, i.e., whether there are defects on the bottom surface of each dome, without flipping the transparent backing paper.

[0029] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] In loudspeaker manufacturing, the dome (such as a high-toughness aluminum-based superalloy dome) is a key component of high-frequency loudspeakers, and its appearance quality directly affects sound performance. Traditionally, operators must attach the dome to a transparent backing paper, observe the front, and then manually flip the paper to check the back. This process inherently carries risks: for domes with low adhesive peel strength, bending of the backing paper during flipping can easily cause the dome to detach or be damaged, resulting in yield loss. This device replaces physical flipping with a reflective optical system, achieving non-contact inspection. Its core principle is to use the light reflection from the mirror and observation mirror to simultaneously present the image of the dome's bottom surface in the operator's field of vision, thus avoiding bending of the backing paper. The entire process relies on the precise coordination of the support mechanism, reflection mechanism, and observation mechanism.

[0033] In some embodiments, such as Figure 1 and Figure 2 As shown, the device is usually placed on the workbench in an unfolded state. The support plate 20 is connected to the base plate 10 bearing by the second connecting bolt 12. The initial tilt angle is adjustable (generally 30°-60°) to accommodate different operator heights and lighting conditions. The operator first checks the cleanliness of the reflector 13 and the observation mirror 31 to avoid dust affecting the imaging quality. Then, the operator takes out the support pin 23 from the storage position 22 at the top of the support plate 20. The support pin 23 is usually made of stainless steel and its diameter matches the support hole 24. The number can be selected according to the width of the backing paper (the standard configuration is two pairs, which are suitable for different sizes of backing paper). The operator lays the transparent backing paper 4 flat on the upper surface of the support plate 20. The width of the backing paper may vary depending on the product specifications, so symmetrical support holes 24 need to be selected according to the actual size to insert the support pins 23. The function of the support pins 23 is to limit and support: their height is slightly higher than the surface of the support plate, forming a physical guard to prevent the backing paper from slipping off during the inspection process, while also avoiding direct contact with the dome 40 and causing scratches. This design ensures that the backing paper is always flat, providing a stable foundation for optical imaging. The tilt angle of the support plate 20 is adjusted by manual rotation: the operator holds the edge of the support plate and slowly rotates it around the bearing connection point of the second connecting bolt 12 to change the angle between it and the base plate 10. The tilt angle selection must ensure that the bottom image of the transparent backing paper 4 can be clearly reflected to the observation mirror 31 through the reflector 13. Usually, the optical path is optimal when the tilt angle is set to 45°. Therefore, the inclined surface 14 is set directly at the edge of the base plate 10. When the bottom edge of the support plate 20 is rotated to the inclined surface 14, it is in the optimal observation position. At this time, the reflector 13 and the support plate 20 assembly form an approximately isosceles right triangle with the shortest optical path and the smallest aberration. After the adjustment is completed, the support plate 20 is fixed in position due to the friction of the bearing connection, and no additional locking device is required. In some embodiments, such as Figure 2 and Figure 3As shown, when the transparent backing paper 4 is placed in place, natural light or auxiliary light source illuminates the dome 40. The image of the front of the dome 40 (facing the operator) enters the human eye through a direct path, while the bottom image penetrates the transparent backing paper 4 and the transparent acrylic plate 21 in the center of the support plate. The transparent acrylic plate 21 has high light transmittance and low distortion characteristics to ensure the true transmission of the image. The bottom image first reaches the reflector 13 on the base plate 10 (usually a plane mirror with aluminum-plated surface and a reflectivity ≥90%). The reflector 13 is embedded through the receiving groove 100 of the base plate 10, deflecting the incident light path and then directing it to the observation mirror 31 on the observation plate 30. The observation mirror 31 is also a plane mirror, forming a secondary reflection, and finally reflecting the bottom image to the human eye observation position 5.

[0034] The operator is positioned at the front of the device, simultaneously focusing both eyes on the front image of the dome 40 and the reverse image in the observation mirror 31. (For example...) Figure 2 The diagram shows that the front image 50 of the dome 40 is directly visible, while the back image 51 is formed by two reflections through the reflector 13 and the observation mirror 31. The operator pulls the transparent backing paper 4 slowly along the F1 direction to allow each dome 40 to enter the field of view in turn. During inspection, the operator can use a magnifying glass or an integrated camera to help identify minor defects such as scratches, dents, or adhesive residue. The entire process successfully replaces the traditional flipping operation, eliminates the risk of backing paper bending, and can achieve zero-drop detection for domes 40 with low adhesive peel strength.

[0035] In some embodiments, such as Figures 4 to 6 As shown, after the inspection is completed, the operator first removes the support pin 23 and puts it back into the storage position 22 (the groove design of the storage position 22 prevents rolling). Then, as... Figure 5 As shown, the support plate 20 is pushed to rotate around the second connecting bolt 12 toward the base plate 10. The support plate 20 naturally embeds into the surface of the base plate 10. When the two are coplanar, the operator then holds the edge of the observation plate 30 and flips it in the F2 direction (towards the support plate 20). The observation plate 30 is rotated above the support plate 20 by the first connecting bolt 11, finally completely covering it, presenting the image as shown. Figure 6 As shown, it can be folded for easy storage or transportation.

[0036] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0038] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0039] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A reflective dome inspection device, characterized in that, include: The support mechanism (2) includes an inclined support plate (20), and the upper surface of the support plate (20) is symmetrically provided with a plurality of support holes (24) on both sides. in The two symmetrical support holes (24) are adapted to accommodate the corresponding support pins (23), thereby supporting the transparent backing paper (4) when it is placed on the support plate (20). The reflective mechanism (1) is located below the support mechanism (2); wherein A reflector (13) is provided on the upper end face of the base plate (10) in the reflection mechanism (1), and one of the long sides of the base plate (10) is connected to one of the long sides of the support plate (20) by a bearing; and The observation mechanism (3) includes an observation plate (30), and an observation mirror (31) is provided on the side of the observation plate (30) facing the support plate (20); wherein The angle between the observation mirror (31) and the reflecting mirror (13) is 90°.

2. The reflective dome inspection device as described in claim 1, characterized in that, The upper end face of the base plate (10) is provided with a receiving groove (100) to receive the reflector (13). A pair of first connecting bolts (11) and a pair of second connecting bolts (12) are respectively provided on both sides of the base plate (10).

3. The reflective dome inspection device as described in claim 2, characterized in that, A pair of the first connecting bolts (11) are adapted to be inserted into both sides of the base plate (10) and connected to the bearing of the observation plate (30); and A pair of second connecting bolts (12) are adapted to be inserted into both sides of the base plate (10) and connected to the bearing of the support plate (20).

4. The reflective dome inspection device as described in claim 3, characterized in that, A slope (14) is provided at the overlapping edge of the base plate (10) and the support plate (20); wherein When the support plate (20) rotates, its edge contacts and limits the contact with the inclined surface (14).

5. The reflective dome inspection device as described in claim 4, characterized in that, The support plate (20) has a through channel (200) in the center, and a transparent acrylic plate (21) is embedded in the through channel (200). The upper surface of the support plate (20) is provided with a storage position (22) for accommodating each support pin (23).

6. The reflective dome inspection device as described in claim 5, characterized in that, The support plate (20) has support connection holes (25) on both sides to be compatible with the corresponding second connection bolts (12).

7. The reflective dome inspection device as described in claim 6, characterized in that, The observation plate (30) has a mounting groove (300) on its end face facing the support plate (20) to accommodate the observation mirror (31); and The observation plate (30) has observation connection holes (32) on both sides to be compatible with the corresponding first connecting bolts (11).

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