Suction type index plate and appearance inspection apparatus

Abstract

The application relates to an air suction type index plate and appearance detection equipment. The main plate is provided with an air passage half-groove, the suction hole is communicated with a recessed area through the air passage half-groove, and a to-be-detected piece is fixed by negative pressure suction at the suction groove. For detection equipment or to-be-detected pieces of different specifications, only the main plate or the upper cover needs to be replaced, so that the adaptability of the air suction type index plate is improved, the spare part cost is reduced, and the universality of products is improved; the upper cover seals the recessed area as a negative pressure cavity, and the upper cover can be detached from the main plate, so that the maintenance of the negative pressure cavity is more convenient and complete, the problem that the negative pressure cavity is difficult to clean or not completely cleaned is solved; the upper cover can be detached from the top to replace the upper cover, the main plate and even the whole air suction type index plate, so that the maintenance is easy; the design that the air passage half-groove communicates the negative pressure cavity and the suction hole is beneficial to reducing the thickness of the main plate under the premise of ensuring the strength of the main plate, so that the thickness of the air suction type index plate is reduced.

Description

Technical Field

[0001] This application relates to the field of appearance inspection, and in particular to an air-suction indexing plate and appearance inspection equipment. Background Technology

[0002] A dividing plate is a precision-machined structural component used to clamp a workpiece on a chuck or between two centers, allowing it to rotate, index, and position. It is used in machine tools and other processing equipment. The working principle of a dividing plate is to achieve precise angular positioning of the workpiece through its core components, such as the rotating shaft and graduations. For example, a general-purpose dividing plate achieves indexing through a worm gear pair and positioning holes on the plate. Optical dividing plates utilize optical or photoelectric systems to subdivide and magnify angles, reading the angle values ​​through an eyepiece or digital display. Dividing plates are widely used in machine tools such as milling machines, drilling machines, and surface grinders, and are also used for scribing in benchwork. CNC dividing plates are particularly suitable for applications requiring high-precision indexing, such as machining, mold making, and the electronics industry.

[0003] However, traditional indexing plates are one-piece designs with an internal vacuum chamber. This presents two technical problems: first, cleaning the vacuum chamber is difficult; second, they have poor adaptability, requiring the entire indexing plate to be replaced for different specifications of testing equipment or parts to be tested. Utility Model Content

[0004] Therefore, it is necessary to provide an air-suction indexing plate and an appearance inspection device.

[0005] One embodiment of this application is an air-suction indexing plate, which includes a main plate and a top cover;

[0006] The main disk has a recessed area, and the upper cover is detachably installed on the main disk. When the upper cover is installed on the main disk, the upper cover seals and covers the recessed area.

[0007] The main plate is provided with a central mounting groove that communicates with the recessed area. The central mounting groove is configured to mount the main plate and connect to negative pressure, so that the main plate can rotate when connected to negative pressure.

[0008] The periphery of the main disk is provided with an adsorption groove and an suction hole located in the adsorption groove;

[0009] The main disk is provided with a semi-groove for air passage, and the suction hole is connected to the recessed area through the semi-groove for fixing the test piece at the adsorption groove by negative pressure adsorption.

[0010] The shape of the adsorption groove is configured to fit the sample to be tested.

[0011] The aforementioned suction-type indexing plate, through the cooperation of the main plate and the top cover, achieves several advantages. Firstly, one top cover can be adapted to multiple main plates of different specifications. For different specifications of testing equipment or parts to be tested, only the main plate or the top cover needs to be replaced, thus improving the adaptability of the suction-type indexing plate and reducing material preparation costs and product versatility. Secondly, the top cover seals over the recessed area as a negative pressure chamber, and the top cover can be removed from the main plate, making the maintenance of the negative pressure chamber more convenient and thorough, solving the problem of difficult or incomplete cleaning of the negative pressure chamber. Furthermore, the top cover can be disassembled from the top to replace the top cover, the main plate, or even the entire suction-type indexing plate, thus facilitating maintenance. Thirdly, the design of the semi-recessed air passage connecting the negative pressure chamber and the suction hole, compared to the traditional through-wall design, helps to reduce the thickness of the main plate while ensuring its strength, thereby reducing the thickness of the suction-type indexing plate and thus reducing the material cost of the suction-type indexing plate.

[0012] For example, the airway semi-groove includes two connected parts with a height difference, used to match the shape of the main plate to reduce the thickness of the main plate.

[0013] In some embodiments, a mounting base protrudes from the side of the main disk facing the upper cover;

[0014] The upper cover is provided with mounting holes corresponding to the mounting base, and the upper cover is screwed to the main plate through the mounting holes and the mounting base.

[0015] For example, the main disk has a flange protruding on the side facing the upper cover. The flange is configured to seal against the upper cover when the upper cover is screwed to the main disk, so that the upper cover sealably covers the recessed area when the upper cover is mounted on the main disk.

[0016] For example, the height of the flange is the sum of the height of the mounting base and the thickness of the top cover.

[0017] In some embodiments, the main disk is provided with a positioning isolation protrusion located on the side of the main disk facing the upper cover.

[0018] In some embodiments, the number of positioning isolation protrusions is at least three, and each of the positioning isolation protrusions is centrally symmetrical with respect to the central axis of the main disk.

[0019] In some embodiments, the central mounting groove has an axial direction that coincides with the central axis.

[0020] In some embodiments, the upper cover is nested or magnetically attached to the main disk, and the upper cover is snapped or screwed to the main disk.

[0021] In some embodiments, the main disk has a mounting boss protruding from the side opposite to the top cover, the central mounting groove passes through the mounting boss, and the mounting boss is configured to position and mount the main disk.

[0022] In some embodiments, the main disk is covered with a protective layer.

[0023] For example, in an embodiment with a flange, the flange is mounted on the mounting boss to be mounted on the central mounting slot via the mounting boss.

[0024] In some embodiments, the number of suction holes is one; or, the number of suction holes is at least two, and the suction holes are arranged in a regular linear pattern.

[0025] In some embodiments, the air passage semi-recess is recessed into the side of the main disc facing the upper cover, and the air passage semi-recess has a semi-circular or semi-elliptical cross-section; or,

[0026] The adsorption tank has a partially cylindrical surface to fit the cylindrical appearance of the test piece.

[0027] In some embodiments, the suction-type indexing plate further includes a flange mounted on the central mounting slot, which is configured to mount the main plate and access negative pressure via the flange.

[0028] In some embodiments, an appearance inspection device includes a camera, a magnetic suction device, and an air-suction indexing plate as described in any embodiment.

[0029] The camera is positioned around the air-suction indexing plate and is used to photograph the test piece adsorbed by the air-suction indexing plate.

[0030] The magnetic suction device is arranged adjacent to the air-suction indexing plate, and there is a gap between the magnetic suction device and the air-suction indexing plate to avoid obstructing the rotation of the air-suction indexing plate;

[0031] The magnetic suction device is configured to use magnetic adsorption to transfer the test piece adsorbed by the negative pressure of the suction-type indexing plate, so as to maintain the position of the test piece relative to the suction-type indexing plate. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram illustrating the application of an embodiment of the air-suction indexing plate described in this application.

[0034] Figure 2 for Figure 1 A partial structural diagram of one direction of the embodiment shown.

[0035] Figure 3 for Figure 1 A schematic diagram of the partial structure after removing part of the test piece in another direction of the embodiment shown.

[0036] Figure 4 for Figure 1 Another schematic diagram of the embodiment shown.

[0037] Figure 5 for Figure 4 Another schematic diagram of the embodiment shown.

[0038] Figure 6 for Figure 5 A schematic diagram of the main disk structure in the embodiment shown.

[0039] Figure 7 for Figure 6 Another schematic diagram of the embodiment shown.

[0040] Figure 8 for Figure 7 Another schematic diagram of the embodiment shown.

[0041] Figure 9 for Figure 8 A schematic cross-sectional view along the AA direction of the embodiment shown.

[0042] Figure 10 for Figure 8 A schematic cross-sectional view along the BB direction of the embodiment shown.

[0043] Figure 11 for Figure 8 Another schematic diagram of the embodiment shown.

[0044] Figure 12 for Figure 11 An enlarged schematic diagram of point C in the illustrated embodiment.

[0045] Figure 13 for Figure 11 Another perspective view of the embodiment shown.

[0046] Figure 14 for Figure 11 Another schematic diagram of the embodiment shown.

[0047] Figure 15 This is a schematic diagram of another embodiment of the appearance inspection equipment described in this application.

[0048] Reference numerals: suction indexing plate 100, main plate 110, central mounting groove 111, adsorption groove 112, suction hole 113, recessed area 114, air passage semi-groove 115, flange 116, mounting base 117, positioning isolation protrusion 118, assembly boss 119, top cover 120, assembly hole 121, central axis 140, flange 150, part to be inspected 200, camera 300, magnetic suction device 400, appearance inspection equipment 500. Detailed Implementation

[0049] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0054] This application discloses a suction-type indexing plate and appearance inspection device 500, which includes some or all of the technical features of the following embodiments; that is, the suction-type indexing plate and appearance inspection device includes some or all of the following structures. In one embodiment of this application, a suction-type indexing plate includes a main plate and a top cover; the main plate has a recessed area, and the top cover is detachably installed on the main plate, and when the top cover is installed on the main plate, the top cover sealably covers the recessed area; the main plate has a central mounting groove communicating with the recessed area, the central mounting groove is configured to install the main plate and access negative pressure, so that the main plate can rotate when accessed with negative pressure; the periphery of the main plate has an adsorption groove and a suction hole located in the adsorption groove; the main plate has an air passage semi-groove, and the suction hole communicates with the recessed area through the air passage semi-groove, fixing the part to be inspected at the adsorption groove by negative pressure adsorption; the shape of the adsorption groove is configured to adapt to the part to be inspected. The aforementioned suction-type indexing plate, through the cooperation of the main plate and the upper cover, achieves two advantages: First, one upper cover can be adapted to multiple main plates of different specifications. For different specifications of testing equipment or parts to be tested, only the main plate or the upper cover needs to be replaced, thus improving the adaptability of the suction-type indexing plate and reducing material costs and product versatility. Second, the upper cover seals over the recessed area as a negative pressure chamber, and the upper cover can be removed from the main plate, making the maintenance of the negative pressure chamber more convenient and thorough, solving the problem of difficult or incomplete cleaning of the negative pressure chamber. Third, the upper cover can be disassembled from the top to replace the upper cover, the main plate, or even the entire suction-type indexing plate, thus facilitating maintenance. Fourth, the design of the semi-recessed air passage connecting the negative pressure chamber and the suction hole, compared with the traditional through-wall design, helps to reduce the thickness of the main plate while ensuring the strength of the main plate, thereby reducing the thickness of the suction-type indexing plate and thus reducing the material cost of the suction-type indexing plate. The following is in conjunction with... Figures 1 to 15 The air-suction indexing plate and appearance inspection equipment are described in detail.

[0055] In some embodiments, a suction-type indexing disk 100 adsorbs the object to be tested 200, such as... Figure 1 and Figure 2 As shown, it includes a main panel 110 and a top cover 120; combined with Figure 7 and Figure 8 The main disk 110 has a recessed area 114, and the upper cover 120 is detachably installed on the main disk 110. When the upper cover 120 is installed on the main disk 110, the upper cover 120 sealably covers the recessed area 114. Figure 9 and Figure 10The main disk 110 is provided with a central mounting groove 111 communicating with the recessed area 114. The central mounting groove 111 is configured to mount the main disk 110 and connect to negative pressure, so that the main disk 110 can rotate under negative pressure. Figure 11 and Figure 12 The main disk 110 is provided with an adsorption groove 112 and an adsorption hole 113 located in the adsorption groove 112 around its periphery; combined with Figure 13 and Figure 14 The main disk 110 is provided with an air passage semi-groove 115, and the suction hole 113 is connected to the recessed area 114 through the air passage semi-groove 115, so as to fix the test piece 200 at the adsorption groove 112 by negative pressure adsorption; combined with Figure 3 and Figure 5 The shape of the adsorption groove 112 is configured to fit the test piece 200. Figure 1 and Figure 2 In the illustrated embodiment, the component to be tested 200 is a capacitor. In other embodiments, the component to be tested 200 may also be a structural component that can be fixed by negative pressure adsorption through the suction hole 113. No additional limitations are imposed on this in the embodiments of this application. This structural design, through the cooperation of the main plate 110 and the upper cover 120, allows one upper cover 120 to adapt to multiple main plates 110 of different specifications. For different specifications of testing equipment or components to be tested 200, only the main plate 110 or the upper cover 120 needs to be replaced, thus improving the adaptability of the suction-type indexing plate 100 and reducing material costs and product versatility. Furthermore, the upper cover 120 seals over the recessed area 114 as a negative pressure chamber, and the upper cover 120 can be removed from the main plate 110, making the maintenance of the negative pressure chamber more convenient. It is thorough, solving the problem of the negative pressure chamber being difficult or not being thoroughly cleaned; on the other hand, it can be disassembled from the top of the top cover 120 to replace the top cover 120, the main plate 110, and even the entire suction indexing plate 100, thus making it easy to maintain; furthermore, the design of the air passage semi-groove 115 connecting the negative pressure chamber and the suction hole 113, compared with the traditional through-wall design, helps to reduce the thickness of the main plate 110 while ensuring the strength of the main plate 110, thereby reducing the thickness of the suction indexing plate 100, thus helping to reduce the material cost of the suction indexing plate 100.

[0056] As an example, the upper cover 120 is detachably mounted on the main plate 110, which is detachably installed on equipment such as a testing device and connected to other pipes. In some embodiments, the upper cover 120 and the main plate 110 are nested or magnetically engaged, and the upper cover 120 is snap-fitted or screwed onto the main plate 110. This structural design allows for maintenance by simply removing the upper cover 120. For different sizes of test pieces 200, the entire suction-type indexing plate 100 can be replaced, or only the main plate 110 or only the upper cover 120 can be replaced, depending on the actual situation. This application does not impose additional limitations on this. Moreover, the nested or magnetic engagement enables rapid positioning and initial fixation, facilitating quick replacement of the upper cover 120 to accommodate different sizes of test pieces 200, thereby improving the versatility and operational efficiency of the equipment. The snap-fit ​​or screw-fit connection further enhances the strength and stability of the connection, ensuring that it will not loosen or fall off due to vibration or external force during use, thus guaranteeing the reliability and safety of the suction-type indexing plate 100 during operation. Therefore, this design, which combines multiple connection methods, not only ensures quick replacement and a secure connection, but also improves the service life and maintenance convenience of the equipment.

[0057] In various embodiments, the main disk 110 has a recessed area 114, and the upper cover 120 is detachably mounted on the main disk 110. When the upper cover 120 is mounted on the main disk 110, it seals over the recessed area 114. Furthermore, the suction hole 113 communicates with the recessed area 114 through the air passage semi-groove 115. This forms a stable and efficient negative pressure transmission channel, suitable for manufacturing ultra-thin suction-type indexing disks 100, and solves the problem of unstable incoming material conditions. In some embodiments, the main disk 110 is covered with a protective layer to protect other parts of the main disk 110, such as the main structure. As an example, the protective layer is an alumina or acetal oxide layer; exemplaryly, the protective layer is prepared from materials such as alumina or acetal oxide using relevant processes.

[0058] In some embodiments, the number of suction holes 113 is one; or, the number of suction holes 113 is at least two, and the suction holes 113 are arranged in a regular linear pattern. This structural design allows for flexible selection of the number and arrangement of suction holes 113 according to the size and shape of the sample 200 to be tested. Furthermore, when the sample 200 is small, a single suction hole 113 can meet the adsorption requirements, thus simplifying the structure and reducing costs; while when the sample 200 is large or has a complex shape, multiple regularly arranged suction holes 113 can provide a more uniform distribution of adsorption force, enhancing adsorption stability and preventing displacement or detachment of the sample 200 during testing, thereby improving the accuracy and reliability of the test. Moreover, the regularly arranged linear suction holes 113 can be adjusted and optimized according to actual needs, further enhancing the versatility and adaptability of the suction-type indexing plate 100.

[0059] In some of these embodiments, such as Figure 4 and Figure 5 As shown, the suction-type indexing plate 100 further includes a flange 150, which is mounted on the central mounting groove 111. The central mounting groove 111 is configured to mount the main plate 110 through the flange 150 and to connect to negative pressure. In some embodiments, such as Figure 4 and Figure 5 As shown, a mounting boss 119 protrudes from the side of the main plate 110 opposite to the upper cover 120. The central mounting groove 111 passes through the mounting boss 119, and the mounting boss 119 is configured to position and install the main plate 110. Exemplarily, in an embodiment with a flange 150, the flange 150 is mounted on the mounting boss 119 to be mounted on the central mounting groove 111 via the mounting boss 119. This structural design, on the one hand, provides a clear installation reference for the main plate 110 through the mounting boss 119, enabling the main plate 110 to be installed more accurately on the relevant equipment, ensuring its stability and reliability during operation. On the other hand, the presence of the mounting boss 119 also facilitates the installation and fixing of other components such as the flange 150, further enhancing the structural strength and connection stability of the entire device, while also simplifying the installation process, improving assembly efficiency, and reducing installation costs.

[0060] like Figure 2 and Figure 3 As shown, the test piece 200 is a capacitor. In some embodiments, the adsorption groove 112 has a partially cylindrical surface to adapt to the cylindrical appearance of the test piece 200. This structural design facilitates the precise adsorption of the test piece 200 and maintains the position of the test piece 200, especially the capacitor, during transport, thereby ensuring the accuracy of the test results.

[0061] For example, such as Figure 9 and Figure 13 As shown, the airway semi-groove 115 comprises two interconnected parts with a height difference, used to match the shape of the main disk 110 to reduce the thickness of the main disk 110. This structural design, on the one hand, effectively reduces the material usage of the main disk 110 while ensuring its strength, thereby reducing the overall weight and material cost of the suction-type indexing disk 100. On the other hand, by optimizing the structure of the airway semi-groove 115, the negative pressure transmission efficiency can be further improved, enhancing the adsorption stability for test pieces 200 of different specifications, and improving the performance and reliability of the equipment.

[0062] In some embodiments, the airway semi-groove 115 is recessed into the side of the main disk 110 facing the upper cover 120, and the airway semi-groove 115 has a semi-circular or semi-elliptical cross-section. This design, on the one hand, allows the shape of the airway semi-groove 115 to match the shape of the upper cover 120, forming a complete airway after the upper cover 120 is installed, thereby ensuring that negative pressure can be efficiently transmitted to the suction hole 113, improving adsorption performance. On the other hand, the semi-circular or semi-elliptical cross-section design, while ensuring airway flow, effectively reduces material usage, lowers the thickness and weight of the main disk 110, further optimizing the structure of the suction-type indexing disk 100, making it thinner and more cost-effective. Furthermore, this cross-sectional shape also enhances the structural strength of the negative pressure transmission airway, preventing deformation or damage to the negative pressure transmission airway during use, thereby extending the service life of the equipment.

[0063] In some of these embodiments, such as Figure 13 and Figure 14 As shown, a mounting base 117 protrudes from the side of the main disk 110 facing the upper cover 120; the upper cover 120 has an assembly hole 121 corresponding to the mounting base 117, and the upper cover 120 is screwed to the main disk 110 through the assembly hole 121 and the mounting base 117. This structural design makes the connection between the main disk 110 and the upper cover 120 more stable and reliable, effectively preventing them from loosening or separating due to external forces during use. On the other hand, the screw-fixed method facilitates quick disassembly and assembly, allowing users to replace the upper cover 120 or the main disk 110 according to different testing needs, further improving the versatility and maintenance convenience of the suction-type indexing disk 100.

[0064] For example, such as Figure 8 and Figure 9As shown, the main disk 110 has a flange 116 protruding on the side facing the upper cover 120. The flange 116 is configured to seal against the upper cover 120 when the upper cover 120 is screwed to the main disk 110, so that the upper cover 120 sealably covers the recessed area 114 when it is mounted on the main disk 110. For example, the height of the flange 116 is the sum of the height of the mounting base 117 and the thickness of the upper cover 120, so that the upper cover 120 has the same height as the main disk 110 when mounted on it, avoiding a step difference. This structural design, on the one hand, ensures the sealing of the negative pressure chamber, i.e., the recessed area 114, through the sealing contact between the flange 116 and the upper cover 120. This improves the stability and reliability of the suction-type indexing plate 100 when adsorbing the workpiece 200, avoiding adsorption failure due to poor sealing, and also facilitates the disassembly and replacement of the upper cover 120 or the main plate 110. On the other hand, the height design of the flange 116 ensures a tight fit between the upper cover 120 and the main plate 110, further enhancing the overall structural stability, reducing the risk of sealing failure due to vibration or external forces, and improving the service life and performance of the equipment.

[0065] In some of these embodiments, such as Figure 4 As shown, the central mounting groove 111 has an axial direction that coincides with the central axis 140. In some embodiments, such as Figure 8 and Figure 11 As shown, the main disk 110 is provided with a positioning isolation protrusion 118, which is located on the side of the main disk 110 facing the upper cover 120. As an example, the positioning isolation protrusion 118 is used to position and mount the upper cover 120 and to provide support for the upper cover 120. This structural design helps to reduce the thickness of the upper cover 120. In some embodiments, the number of positioning isolation protrusions 118 is at least three, and each positioning isolation protrusion 118 is centrally symmetrically arranged with respect to the central axis 140 of the main disk 110. Figure 13 and Figure 14 In the illustrated embodiment, there are four positioning isolation protrusions 118, which are centrally symmetrically arranged relative to the central axis 140 of the main disk 110. This structural design effectively positions the upper cover 120, ensuring that the upper cover 120 accurately covers the recessed area 114 during installation, thereby guaranteeing the sealing of the negative pressure chamber and its normal function. Simultaneously, the positioning isolation protrusions 118 also form a certain isolation space between the upper cover 120 and the main disk 110, preventing wear caused by direct contact between the upper cover 120 and the main disk 110, extending the service life of both the upper cover 120 and the main disk 110, and further improving the reliability and stability of the suction-type indexing plate 100.

[0066] In some embodiments, an appearance inspection device 500, such as Figure 15 As shown, it includes a camera 300, a magnetic attraction device 400, and the suction-type indexing plate 100. The camera 300 is positioned around the suction-type indexing plate 100 and is used to photograph the workpiece 200 adsorbed by the suction-type indexing plate 100. The magnetic attraction device 400 is disposed adjacent to the suction-type indexing plate 100, and there is a gap between the magnetic attraction device 400 and the suction-type indexing plate 100 to avoid obstructing the rotation of the suction-type indexing plate 100. The magnetic attraction device 400 is configured to use magnetic attraction to transfer the workpiece 200 adsorbed by negative pressure by the suction-type indexing plate 100, so as to maintain the position of the workpiece 200 relative to the suction-type indexing plate 100. As an example, the suction-type indexing plate 100 is any of the suction-type indexing plates 100 described in any embodiment. It is understandable that, on the one hand, since the suction-type indexing plate 100 described in any embodiment is used, the appearance inspection device 500 also has the beneficial technical effects of the suction-type indexing plate 100, which will not be elaborated here. On the other hand, by using the camera 300 to capture images of the workpiece 200 to be inspected, which maintains a consistent posture during transport, the accuracy and effectiveness of the inspection effect of the appearance inspection device 500 are greatly improved. Furthermore, by using the magnetic suction device 400 to transfer the workpiece 200 adsorbed by the suction-type indexing plate 100, it is beneficial to protect the workpiece 200 to be inspected and can also cooperate with subsequent inspection of structural components to achieve other aspects of appearance inspection.

[0067] It should be noted that other embodiments of this application also include an air-suction indexing plate and appearance inspection equipment formed by combining the technical features of the above embodiments.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A suction-type indexing plate (100), characterized in that, Includes the main panel (110) and the top cover (120); The main disk (110) has a recessed area (114), and the upper cover (120) is detachably installed on the main disk (110). When the upper cover (120) is installed on the main disk (110), the upper cover (120) seals over the recessed area (114). The main plate (110) is provided with a central mounting groove (111) communicating with the recessed area (114). The central mounting groove (111) is configured to mount the main plate (110) and connect to negative pressure so that the main plate (110) can rotate when connected to negative pressure. The periphery of the main disk (110) is provided with an adsorption groove (112) and an adsorption hole (113) located in the adsorption groove (112). The main plate (110) is provided with an air passage semi-groove (115), and the suction hole (113) is connected to the recessed area (114) through the air passage semi-groove (115) to fix the test piece (200) at the adsorption groove (112) by negative pressure adsorption. The shape of the adsorption groove (112) is configured to fit the test piece (200).

2. The air-suction indexing plate (100) according to claim 1, characterized in that, The main plate (110) has a mounting base (117) protruding on the side facing the upper cover (120). The upper cover (120) is provided with an assembly hole (121) corresponding to the mounting base (117). The upper cover (120) is screwed to the main plate (110) through the assembly hole (121) and the mounting base (117).

3. The air-suction indexing plate (100) according to claim 2, characterized in that, The main disk (110) is provided with a positioning isolation protrusion (118), which is located on the side of the main disk (110) facing the upper cover (120).

4. The air-suction indexing plate (100) according to claim 3, characterized in that, The number of the positioning isolation protrusions (118) is at least three, and each of the positioning isolation protrusions (118) is centrally symmetrical with respect to the central axis (140) of the main disk (110).

5. The air-suction indexing plate (100) according to claim 4, characterized in that, The central mounting groove (111) has an axial direction that coincides with the central axial direction (140).

6. The air-suction indexing plate (100) according to claim 1, characterized in that, The upper cover (120) is nested or magnetically attached to the main disk (110), and the upper cover (120) is snapped or screwed onto the main disk (110); or, The main disk (110) has a mounting boss (119) protruding on the side opposite to the upper cover (120), and the central mounting groove (111) passes through the mounting boss (119). The mounting boss (119) is configured to position and mount the main disk (110); or, The main disk (110) is covered with a protective layer.

7. The air-suction indexing plate (100) according to claim 1, characterized in that, The number of suction holes (113) is one; or the number of suction holes (113) is at least two, and each suction hole (113) is arranged in a linear pattern.

8. The air-suction indexing plate (100) according to claim 1, characterized in that, The air passage semi-groove (115) is recessed into the side of the main disk (110) facing the upper cover (120), and the air passage semi-groove (115) has a semi-circular or semi-elliptical cross-section; or, The adsorption tank (112) has a partially cylindrical surface to be adapted to the test piece (200) which has a cylindrical appearance.

9. The air-suction indexing dial (100) according to any one of claims 1 to 8, characterized in that, The suction-type indexing plate (100) also includes a flange (150) which is mounted on the central mounting groove (111) and configured to mount the main plate (110) and connect to negative pressure via the flange (150).

10. An appearance inspection device (500), characterized in that, Includes a camera (300), a magnetic suction device (400), and an air-suction indexing plate (100) as described in any one of claims 1 to 9. The camera (300) is arranged around the air-suction indexing plate (100) and is used to photograph the test piece (200) adsorbed by the air-suction indexing plate (100). The magnetic suction device (400) is arranged adjacent to the air-suction indexing plate (100), and there is a gap between the magnetic suction device (400) and the air-suction indexing plate (100) to avoid hindering the rotation of the air-suction indexing plate (100); The magnetic suction device (400) is configured to use magnetic adsorption to transfer the test piece (200) that is negatively adsorbed by the air-suction indexing plate (100) so as to maintain the position of the test piece (200) relative to the air-suction indexing plate (100).

Images