Positioning device for spraying of curved spherical cover

Abstract

The utility model relates to a positioning device for spraying a curved-surface ball cover, which comprises a pressing cover plate, a foam pad and a sealing base, the sealing base is used for placing the curved-surface ball cover with the inner surface to be sprayed, and the outer side surface of the curved-surface ball cover is sealed by the sealing base; the pressing cover plate is installed on the upper end face of the sealing base and used for pressing the curved-surface spherical cover in the sealing base. The foam pad is arranged between the bottom of the curved-surface ball cover and the inner bottom surface of the sealing base, and the foam pad is used for positioning the vertical position of the curved-surface ball cover. The positioning device has the advantages that the problem of accurate positioning of spraying of the inner surface of an existing curved spherical cover is solved, the outer surface of the curved spherical cover is protected and shielded, and the pressing cover plate is matched with the foam pad to position the curved spherical cover in the vertical direction. The pressing cover plate is matched with the sealing base to achieve positioning of the curved-surface ball cover in the horizontal direction, and the device is simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying of aerospace components, in particular to a positioning device for spraying of curved spherical covers. Background Art

[0002] Curved dome covers usually include optical flow fairings, UAV optical dome covers, missile fairings, aviation protective covers, semicircular dust covers or other functional concave convex lenses. In aerospace spraying projects, precise positioning and protection measures are required when spraying or etching circuits on the dome covers. Especially when spraying the inner surface of the optical dome cover, it is usually necessary to protect the outer surface and shield it, and the requirements for precise positioning are high, and precise positioning needs to be achieved.

[0003] At present, traditional spray positioning fixtures usually adopt six-point positioning or self-priming methods. The existing spray positioning devices are complex and expensive in structure, and have limited effect on the precise positioning of curved spheres, resulting in low production efficiency and increased costs. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a positioning device for spraying a curved spherical cover, so as to solve the current problem of precise positioning of the inner surface spraying of a curved sphere, and to provide a spraying device with a simple structure, low cost and the ability to achieve precise positioning of the curved sphere, thereby improving the spraying efficiency and accuracy, reducing production costs, and meeting the market demand for positioning of the inner surface spraying of a curved sphere.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: a positioning device for spraying a curved spherical cover, comprising: a pressing cover plate, a foam pad, and a sealing base, wherein the sealing base is used to place the curved spherical cover whose inner surface is to be sprayed, and the outer side surface of the curved spherical cover is sealed by the sealing base;

[0006] The pressing cover plate is mounted on the upper end surface of the sealing base and is used to press the curved spherical cover into the sealing base;

[0007] The foam pad is provided between the bottom of the curved ball cover and the inner bottom surface of the sealing base, and the foam pad is used to locate the vertical position of the curved ball cover.

[0008] The beneficial effects of the present invention are: the positioning device solves the current problem of precise positioning of the inner surface spraying of a curved sphere, realizes the protection and shielding of the outer surface of the curved sphere cover, the compression cover plate cooperates with the foam pad to realize the vertical positioning of the curved sphere cover, and the compression cover plate cooperates with the sealing base to realize the horizontal positioning of the curved sphere cover, and the device has a simple structure and low cost and can realize the precise positioning of the curved sphere, thereby improving the spraying efficiency and accuracy, reducing the production cost, and meeting the market demand for positioning of the inner surface spraying of the curved sphere.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the curved ball cover is a hemispherical shell structure with an opening, the sealing base is a polygonal structure with a cavity inside, the upper end of the sealing base is provided with an opening, the cavity is used to accommodate the curved ball cover, and the bottom end surface of the sealing base is provided with a support.

[0011] The beneficial effects of adopting the above further solution are: the sealing base provides a placement space for accommodating the curved ball cover, and the sealing base can be installed in the desired position through the support set at the bottom, which is convenient and efficient to install; and after the curved ball cover is placed in the cavity of the sealing base, the outer surface of the curved ball cover can be effectively shielded.

[0012] Furthermore, the pressing cover plate is annular in shape, and the inner diameter of the pressing cover plate is smaller than the inner diameter of the curved spherical cover.

[0013] The beneficial effect of adopting the above-mentioned further scheme is that the end face of the compression cover can act on the upper end face of the curved ball cover, and press the curved ball cover downward so that its upper end face is flush with the upper end face of the sealing base, thereby realizing the horizontal positioning of the curved ball cover. By accurately positioning the spherical structure, the accuracy and efficiency of spraying are further improved.

[0014] Furthermore, the upper end surface of the sealing base is further provided with a positioning inner frame, the inner wall of the positioning inner frame is circular and is used to cooperate with the outer edge of the upper end surface of the curved spherical cover.

[0015] The beneficial effect of adopting the above further solution is that the outer edge of the upper end surface of the curved spherical cover is positioned by positioning the inner wall of the inner frame.

[0016] Furthermore, the inner diameter of the positioning inner frame is equal to the outer diameter of the curved spherical cover, and the inner wall of the positioning inner frame is correspondingly fitted with the outer edge of the upper end surface of the curved spherical cover.

[0017] The beneficial effect of adopting the above further solution is to achieve the positioning of the horizontal position of the curved spherical cover.

[0018] Furthermore, the pressing cover plate is fixedly connected to the upper end surface of the positioning inner frame, and the pressing cover plate is used to press the upper end surface of the curved ball cover to be flush with the upper end surface of the positioning inner frame.

[0019] The beneficial effect of adopting the above-mentioned further solution is that after the compression cover plate is fixedly connected to the positioning inner frame, the upper end surface of the curved ball cover is flush with the upper end surface of the positioning inner frame, thereby realizing the horizontal positioning of the curved ball cover and preventing the position of the curved ball cover from shifting during the spraying process. At this time, the outer surface of the curved ball cover is sealed by the joint cooperation of the positioning inner frame and the sealing base, and only the inner surface of the curved ball cover is exposed for spraying, thereby ensuring the spraying quality.

[0020] Furthermore, a sealing gasket is provided between the pressing cover plate and the positioning inner frame.

[0021] The beneficial effect of adopting the above further solution is that it protects the pressing cover plate and the positioning inner frame, is wear-resistant, and thus extends the service life of the pressing cover plate and the positioning inner frame.

[0022] Furthermore, the foam pad is arranged on the bottom end surface of the sealing base corresponding to the center of the curved spherical cover.

[0023] The beneficial effect of adopting the above further solution is to achieve the vertical positioning of the curved ball cover.

[0024] Furthermore, the foam pad is elastic and is arranged in contact with the curved spherical cover so as to adapt to the outer surface of the curved spherical cover after deformation.

[0025] The beneficial effects of adopting the above-mentioned further scheme are: through the adaptive deformation of the foam pad, the contact object is wrapped through surface contact, so that the device is suitable for spherical structures of different shapes and sizes, thereby improving the versatility and scope of application; at the same time, through the adaptive deformation of the foam pad and the outer surface of the curved ball cover, the height direction positioning of the curved ball cover is achieved.

[0026] Furthermore, it also includes: a pressure sensor, which is arranged on the upper end surface of the foam pad that contacts the curved ball cover.

[0027] The beneficial effect of adopting the above further solution is that the dimensional errors of different curved spherical covers can be determined through the indication of the pressure sensor, thereby realizing the monitoring of the curved spherical cover and ensuring the stability and consistency of the fixing of the curved spherical cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an exploded view of the structure of an embodiment of the utility model;

[0029] Figure 2 This is an assembly diagram of an embodiment of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Press the cover; 2. Curved ball cover; 3. Position the inner frame; 4. Foam pad; 5. Seal the base. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figure 1-2 As shown, the utility model provides a positioning device for spraying a curved spherical cover, comprising: a pressing cover plate 1, a foam pad 4 and a sealing base 5, wherein the pressing cover plate 1 is mounted on the upper end surface of the sealing base 5, and a foam pad 4 is provided on the inner bottom surface of the sealing base 5. The curved spherical cover 2 to be sprayed on the inner surface is processed by the positioning device, wherein the processed curved spherical cover 2 can be an optical flow fairing, an optical spherical cover for drones, a missile fairing, an aviation protective cover, a semicircular dust cover or other functional concave-convex lenses, etc. The curved spherical cover 2 is a partial sphere that has been cut horizontally.

[0034] During the spraying operation, the curved ball cover 2 to be sprayed is directly placed in the sealing base 5 with the arc opening facing upward, and the bottom of the curved ball cover 2 contacts the top of the foam pad 4. After the compression cover 1 is installed on the upper end surface of the sealing base 5, the curved ball cover 2 is pressed into the sealing base 5, and the curved ball cover 2 and the foam pad 4 are pressed tightly, further realizing the horizontal position positioning of the curved ball cover 2, closing the outer surface of the curved ball cover 2 by the sealing base 5, and realizing the vertical position positioning of the curved ball cover 2 by the foam pad 4.

[0035] This positioning device solves the current problem of precise positioning of the inner surface spraying of a curved sphere, realizes the protection and shielding of the outer surface of the curved ball cover 2, and the compression cover plate 1 cooperates with the foam pad 4 to realize the vertical positioning of the curved ball cover 2, and the compression cover plate 1 cooperates with the sealing base 5 to realize the horizontal positioning of the curved ball cover 2. In addition, this device has a simple structure and low cost and can realize precise positioning of the curved sphere, thereby improving the spraying efficiency and accuracy, reducing production costs, and meeting the market demand for positioning of the inner surface spraying of a curved sphere.

[0036] In this embodiment, the curved dome 2 is a hemispherical shell structure with an opening. Correspondingly, the sealing base 5, which houses the curved dome 2, is a polygonal structure with a cavity defined within. The upper end of the sealing base 5 is provided with an opening through which the curved dome 2 can be inserted into the cavity within the curved dome 2. A support is also provided on the bottom end surface of the sealing base 5. In this embodiment, the support is rectangular and has fixing holes formed therein, allowing the sealing base 5 to be directly secured in a desired position.

[0037] In the above solution, the sealing base 5 provides a placement space for accommodating the curved ball cover 2. The sealing base 5 can be installed in the desired position through the support provided at the bottom, which is convenient and efficient to install. After the curved ball cover 2 is placed in the cavity of the sealing base 5, the outer surface of the curved ball cover 2 can be effectively shielded.

[0038] like Figure 1-2 As shown, in a further embodiment, the compression cover plate 1 is annular and has multiple fixing holes evenly distributed thereon, facilitating the installation of the compression cover plate 1 and the sealing base 5. At the same time, the inner diameter of the compression cover plate 1 should be smaller than the inner diameter of the curved spherical cover 2, so that when the compression cover plate 1 is fixed to the upper end face of the sealing base 5, the end face of the compression cover plate 1 can act on the upper end face of the curved spherical cover 2 and press the curved spherical cover 2 downward so that its upper end face is flush with the upper end face of the sealing base 5, thereby achieving horizontal positioning of the curved spherical cover 2. By precisely positioning the spherical structure, the accuracy and efficiency of spraying are further improved.

[0039] like Figure 1-2 As shown, in a preferred embodiment, the upper end surface of the sealing base 5 is further provided with a positioning inner frame 3, wherein the outer wall of the positioning inner frame 3 has a polygonal structure and is arranged one-to-one with each side of the sealing base 5. The inner wall of the positioning inner frame 3 is circular, that is, the positioning inner frame 3 is provided with an opening at the center of the corresponding sealing base 5 to enable the curved spherical cover 2 to be installed into the sealing base 5 and to mate with the outer edge of the upper end surface of the curved spherical cover 2. It is conceivable that, as an alternative embodiment, the outer wall of the positioning inner frame 3 can adopt any other shape, and the size of its outer wall can also be larger than the maximum size of the upper end surface of the sealing base 5. As long as the inner wall of the positioning inner frame 3 mates with the outer edge of the upper end surface of the curved spherical cover 2 after the positioning inner frame 3 is fixed to the sealing base 5, the outer edge of the upper end surface of the curved spherical cover 2 is positioned by the inner wall of the positioning inner frame 3.

[0040] At the same time, the inner diameter of the positioning inner frame 3 is approximately the same as the outer diameter of the curved spherical cover 2. This allows the inner wall of the positioning inner frame 3 to contact the outer edge of the upper end surface of the curved spherical cover 2 when the curved spherical cover 2 is pressed against the sealing base 5. Furthermore, the upper end surface of the curved spherical cover 2 is flush with the upper end surface of the positioning inner frame 3, thereby achieving horizontal positioning of the curved spherical cover 2. As an alternative, the sealing base 5 can be made relatively larger. By manufacturing positioning inner frames 3 adapted to different outer diameters of the curved spherical cover 2, the positioning device can be adapted to the spraying of curved spherical covers 2 of various sizes, thus providing a wider range of applicability.

[0041] Specifically, a plurality of connection holes are also evenly opened on the upper end surface of the positioning inner frame 3, and the pressing cover plate 1 is fixedly connected to the upper end surface of the positioning inner frame 3 by fasteners, so that when the curved ball cover 2 is placed in the sealing base 5, even if the curved ball cover 2 is slightly higher than the upper end surface of the positioning inner frame 3, the upper end surface of the curved ball cover 2 can be flush with the upper end surface of the positioning inner frame 3 after the pressing cover plate 1 is fixedly connected to the positioning inner frame 3, thereby realizing the horizontal positioning of the curved ball cover 2 and avoiding the position shift of the curved ball cover 2 during the spraying process. At this time, the outer surface of the curved ball cover 2 is closed by the joint cooperation of the positioning inner frame 3 and the sealing base 5, and only the inner surface of the curved ball cover 2 is exposed for spraying, thereby ensuring the spraying quality.

[0042] In order to protect the pressing cover plate 1 and the positioning inner frame 3, a sealing gasket is provided between the pressing cover plate 1 and the positioning inner frame 3. The sealing gasket can be made of plastic materials such as rubber and is wear-resistant, thereby extending the service life of the pressing cover plate 1 and the positioning inner frame 3.

[0043] like Figure 1 As shown, in a preferred embodiment, the foam pad 4 is positioned on the bottom surface of the sealing base 5, corresponding to the center of the curved spherical cover 2. The foam pad 4 exhibits a certain degree of elastic deformation, allowing it to adapt to the object in contact. Different plastic materials can be selected based on the deformation coefficient of the object being processed. In this embodiment, when the curved spherical cover 2 is pressed downward and installed into the sealing base 5, the foam pad 4 deforms under the pressure to conform to the outer surface of the curved spherical cover 2. It is conceivable that the height of the foam pad 4 can be appropriately adjusted based on the dimensions of the sealing base 5 and the curved spherical cover 2, so that when the curved spherical cover 2 is installed, the upper surface of the foam pad 4 can contact the bottom of the curved spherical cover 2.

[0044] In the above scheme, the contact object is wrapped through surface contact through the adaptive deformation of the foam pad 4, so that the device is suitable for spherical structures of different shapes and sizes, thereby improving the versatility and scope of application; at the same time, the height direction positioning of the curved ball cover 2 is achieved through the adaptive deformation of the foam pad 4 and the outer surface of the curved ball cover 2.

[0045] In some feasible embodiments, a pressure sensor is further provided in the positioning device. Specifically, the pressure sensor is provided on the upper end surface where the foam pad 4 contacts the curved ball cover 2. When the curved ball cover 2 is installed in the sealing base 5 and presses down the foam pad 4, it is captured by the pressure sensor. The reading of the pressure sensor can be used to judge the dimensional error of different curved ball covers 2, thereby realizing the monitoring of the curved ball cover 2 and ensuring the stability and consistency of the fixation of the curved ball cover 2.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0047] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present invention. 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A positioning device for spraying a curved spherical cover, characterized in that: include: The cover plate (1), the foam pad (4) and the sealing base (5) are pressed together, wherein the sealing base (5) is used to place the curved spherical cover (2) whose inner surface is to be sprayed, and the outer side surface of the curved spherical cover (2) is sealed by the sealing base (5); The pressing cover plate (1) is mounted on the upper end surface of the sealing base (5) and is used to press the curved spherical cover (2) into the sealing base (5); The foam pad (4) is provided between the bottom of the curved ball cover (2) and the inner bottom surface of the sealing base (5), and the foam pad (4) is used to locate the vertical position of the curved ball cover (2).

2. A positioning device for spraying a curved spherical cover according to claim 1, characterized in that: The curved spherical cover (2) is a hemispherical shell structure provided with an opening, and the sealing base (5) is a polygonal structure provided with a cavity therein. The upper end of the sealing base (5) is provided with an opening, and the cavity is used to accommodate the curved spherical cover (2). The bottom end surface of the sealing base (5) is provided with a support.

3. A positioning device for spraying a curved spherical cover according to claim 1 or 2, characterized in that: The pressing cover plate (1) is in the shape of a circular ring, and the inner diameter of the pressing cover plate (1) is smaller than the inner diameter of the curved spherical cover (2).

4. A positioning device for spraying a curved spherical cover according to claim 3, characterized in that: The upper end surface of the sealing base (5) is further provided with a positioning inner frame (3), the inner wall of the positioning inner frame (3) being circular and being used to cooperate with the outer edge of the upper end surface of the curved spherical cover (2).

5. A positioning device for spraying a curved spherical cover according to claim 4, characterized in that: The inner diameter of the positioning inner frame (3) is equal to the outer diameter of the curved spherical cover (2), and the inner wall of the positioning inner frame (3) is correspondingly fitted with the outer edge of the upper end surface of the curved spherical cover (2).

6. A positioning device for spraying a curved spherical cover according to claim 4 or 5, characterized in that: The pressing cover plate (1) is fixedly connected to the upper end surface of the positioning inner frame (3), and the pressing cover plate (1) is used to press the upper end surface of the curved ball cover (2) to be flush with the upper end surface of the positioning inner frame (3).

7. A positioning device for spraying a curved spherical cover according to claim 4 or 5, characterized in that: A sealing gasket is provided between the pressing cover plate (1) and the positioning inner frame (3).

8. The positioning device for spraying a curved spherical cover according to claim 1, characterized in that: The foam pad (4) is arranged on the bottom end surface of the sealing base (5) corresponding to the center of the curved spherical cover (2).

9. The positioning device for spraying a curved spherical cover according to claim 1, characterized in that: The foam pad (4) is elastic and is arranged in contact with the curved ball cover (2) so as to adapt to the outer surface of the curved ball cover (2) after deformation.

10. The positioning device for spraying a curved spherical cover according to claim 1, characterized in that: Also includes: A pressure sensor is provided on the upper end surface of the foam pad (4) in contact with the curved ball cover (2).

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