Aircraft model corner rounding tooling

Abstract

The utility model relates to a kind of corner rounding tool for airplane model, including frame and track, the frame and track are arranged side by side with interval, the spacing between the frame and track is gradually reduced from entry end to exit end, several sandpaper fixers are provided in the frame along its length direction, detachably mounted with sandpaper on the sandpaper fixer, the mesh number of sandpaper is gradually increased from entry end to exit end. Worker drives workpiece to displace along the length direction of track, so that workpiece displaces from entry end to exit end, the sharp edge of workpiece is in contact with mesh number increasing sandpaper in turn, gradually refining the sharp edge of workpiece, polishing in order can reduce sandpaper wear, prolong service life, passivate workpiece sharp edge at the same time, ensure that workpiece is assembled into shape and use safely up to standard.

Description

Technical Field

[0001] This utility model relates to the field of aircraft model tooling technology, and in particular to a tooling for rounding the edges and corners of aircraft models. Background Technology

[0002] For aviation enthusiasts and flight lovers, model airplanes are a great source of entertainment and learning. They offer opportunities to understand aircraft structure and principles, while also providing the enjoyment of experiencing military equipment. To achieve a high level of quality, crash resistance, and aesthetics, existing model airplanes are often manufactured using unibody metal molding or plastic injection molding followed by metallic paint application. However, the wings of current model airplanes are relatively thin, with sharp edges, which does not meet the specifications for model toys. To meet these specifications, the wing edges need to be sanded. Current sanding methods often involve manual shaving with a knife, followed by sanding and rounding, a labor-intensive and demanding process that requires improvement. Utility Model Content

[0003] Therefore, it is necessary to provide a tooling for rounding the edges and corners of aircraft models to address the above problems.

[0004] A tooling for rounding the edges and corners of an aircraft model includes a frame and a track. The frame and track are arranged side by side at intervals, and the distance between the frame and track gradually decreases from the inlet end to the outlet end. Several sandpaper holders are arranged inside the frame along its length, and sandpaper is detachably installed on the sandpaper holders. The grit of the sandpaper gradually increases from the inlet end to the outlet end.

[0005] Preferably, the sandpaper holder includes a main body, a back plate, and a locking bolt. The front of the main body faces the track side, and the back of the main body has a mounting groove. The back plate is installed in the mounting groove to clamp the sandpaper wrapped around the main body. The locking bolt passes through the back plate and is inserted into the mounting groove.

[0006] Preferably, the edges of the mounting groove have rounded corners.

[0007] Preferably, the upper and lower sides of the main body are provided with snap-fit ​​strips, and the frame is provided with a sliding groove corresponding to the snap-fit ​​strips.

[0008] Preferably, a rubber pad is adhered to the side of the back plate that is in contact with the main body.

[0009] The advantages of this utility model are: the worker moves the workpiece along the length of the track, so that the workpiece moves from the inlet end to the outlet end. The sharp edge of the workpiece comes into contact with sandpaper with increasing grit in sequence, gradually refining the sharp edge of the workpiece. The sequential grinding can reduce sandpaper wear and extend service life. At the same time, it blunts the sharp edge of the workpiece, ensuring that the workpiece is safe and meets the standards after assembly. Attached Figure Description

[0010] Figure 1 This is a top view schematic diagram of a tooling for rounding the edges and corners of an aircraft model, as one embodiment.

[0011] Figure 2 This is a schematic diagram of the sandpaper holder and sandpaper assembly. Detailed Implementation

[0012] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model 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 utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0013] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0015] like Figures 1-2As shown, a tooling for rounding the edges and corners of an aircraft model includes a frame 1 and a track 2. The frame 1 and the track 2 are arranged side by side with intervals. The distance between the frame 1 and the track 2 gradually decreases from the inlet end to the outlet end. Several sandpaper holders 3 are arranged inside the frame 1 along its length direction. Sandpaper 4 is detachably installed on the sandpaper holders 3. The grit of the sandpaper 4 gradually increases from the inlet end to the outlet end. Specifically, in this embodiment, the frame 1 and the track 2 are arranged side by side. The workpiece to be polished (not shown in the figure) is placed flat on the track 2, with the sharp edge of the workpiece facing one side of the frame 1. One end of the sandpaper 4 wrapped by the sandpaper holder 3 protrudes outside the frame 1, so that the sharp edge of the workpiece can come into contact with the sandpaper 4. The worker moves the workpiece along the length of the track 2, so that the workpiece moves from the inlet end to the outlet end. The sharp edge of the workpiece comes into contact with the sandpaper 4 with increasing grit in sequence, gradually refining the sharp edge of the workpiece. This avoids directly using high grit sandpaper 4 to treat the sharp edge, which would reduce efficiency. Polishing in sequence can reduce sandpaper wear and extend service life. Furthermore, in order to ensure that the sharp edge of the workpiece can make good contact with the sandpaper on the sandpaper holder 3, the gap between the frame 1 and the track 2 is gradually reduced from the inlet end to the outlet end. During the displacement process, the workpiece can be ensured to make good contact with the subsequent sandpaper 4. At the same time, an elastic buffer structure can be set on the side of the frame 1 away from the track 2, so that when the workpiece contacts the sandpaper 4 on the sandpaper holder 3, there is a buffering effect, avoiding hard collisions during the grinding process, which would cause the wingtip of the workpiece to be broken.

[0016] like Figure 2 As shown, the sandpaper holder 3 includes a main body 31, a back plate 32, and a locking bolt 33. The front of the main body 31 faces the side of the track 2, and the back of the main body 31 has a mounting groove 311. The back plate 32 is installed in the mounting groove 311 to clamp the sandpaper 4 wrapped around the main body 31. The locking bolt 33 passes through the back plate 32 and is inserted into the mounting groove 311. Specifically, the sandpaper 4 is wrapped around the main body 31, and both ends of the sandpaper are folded from the back of the main body 31 and inserted between the mounting groove 311 and the back plate 32. The user only needs to loosen or tighten the locking bolt 33 to loosen or tighten the back plate 32, thereby completing the sandpaper installation and removal operation.

[0017] Specifically, the edges of the mounting groove 311 are rounded to avoid sharp corners that could scratch the sandpaper and reduce its lifespan.

[0018] like Figure 2As shown, the main body 31 has snap-fit ​​strips 312 on its upper and lower sides, and a groove 11 is provided inside the frame 1 corresponding to the snap-fit ​​strips 312. Specifically, the snap-fit ​​strips 312 are fitted into the groove 11, allowing several sandpaper holders 3 to be inserted into the frame 1 in a linear, side-by-side configuration, fixing the sandpaper holders 3, providing support, and preventing them from shifting or misaligning during sanding. A pin can be provided at the end of the groove 11 to lock the outermost sandpaper holder 3, preventing it from detaching from the end of the groove 11. When the sandpaper needs to be replaced, simply remove the pin to remove the sandpaper holder 3 from the frame 1 and replace the sandpaper 4 on it.

[0019] Specifically, a rubber pad is adhered to the side of the back plate 32 that is in contact with the main body 31 to enhance the friction of the sandpaper 4 and prevent slippage during the friction process, so that the sandpaper can "slip" out of the mounting groove 311.

[0020] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An aircraft model corner rounding tool, characterized by: The device includes a frame and a track, which are arranged side by side at intervals. The distance between the frame and the track gradually decreases from the inlet end to the outlet end. Several sandpaper holders are arranged along the length of the frame, and sandpaper is detachably installed on the sandpaper holders. The grit of the sandpaper gradually increases from the inlet end to the outlet end.

2. The corner rounding tool for a model aircraft as defined in claim 1, wherein: The sandpaper holder includes a main body, a back plate, and a locking bolt. The front of the main body faces the track side, and the back of the main body has a mounting groove. The back plate is installed in the mounting groove to clamp the sandpaper wrapped around the main body. The locking bolt passes through the back plate and is inserted into the mounting groove.

3. The corner rounding tool for a model aircraft as defined in claim 2 wherein: The edges of the mounting groove have rounded corners.

4. The corner fairing tooling for a model aircraft kit of claim 2, wherein: The main body has snap-fit ​​strips on its upper and lower sides, and the frame has a sliding groove corresponding to the snap-fit ​​strips.

5. The corner fairing tooling for a model aircraft kit of claim 2 wherein: A rubber pad is adhered to the side of the back panel that is in contact with the main body.

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