A tool for shaping a thin-walled part

Abstract

The utility model relates to the technical field of frock shaping, concretely is a kind of frock of thin-walled part shaping, including base, base being set on base, pressing tongs, support rod, connecting plate, handle, gear, gear lever;The support rod is vertically arranged on the base, and the connecting plate is connected with the upper portion of the support rod;The gear is rotatably connected with the connecting plate, and the gear is engaged with the gear lever, and the lower end of the handle is fixedly connected with the gear, for driving the gear rotation, to drive the gear lever linearly moves downward and closes the pressing tongs;The pressing tongs are detachably arranged on the base, and the pressing tongs have a plurality of arc clamping surfaces of different sizes, and the arc clamping surfaces are matched with the outer diameter of the thin-walled part to be shaped.The scheme is provided with arc clamping surfaces of different sizes, so that different sizes of thin-walled parts can be adapted without replacing frock, the scope of application is wide, and the pressing tongs are detachable, so that more types of thin-walled parts can be satisfied.

Description

Technical Field

[0001] This utility model relates to the field of tooling shaping technology, specifically a tooling for shaping thin-walled parts. Background Technology

[0002] In aerospace manufacturing, titanium alloy blind rivets are crucial high-end fasteners with extremely high requirements for hardness, strength, and dimensional accuracy. Their performance largely depends on the assembly quality of the outer thin-walled profile locking ring. This locking ring, being a thin-walled component, is highly susceptible to irregular deformation during assembly and wrapping, leading to problems such as loose fit with internal parts and out-of-tolerance cylindricity. This severely affects the product's sealing and connection strength, consequently impacting its performance and lifespan.

[0003] Currently, there is a lack of efficient and precise specialized shaping tools to shape thin-walled locking rings of different diameters to ensure their fit and cylindricity after assembly. Most existing shaping fixtures can only shape parts of one size, or the fixtures are fixed. When shaping parts of different sizes is required, the fixed fixtures cannot be disassembled and replaced with shaping fixtures suitable for other sizes. For example, patent CN206199931U discloses a shell opening shaping tool for circular shells. This tool uses the left and right arc working surfaces to form a shaping space when closed, thereby shaping the shell opening of the circular shell. However, because the dimensions of the left and right clamps are fixed, this device can only shape circular shells of one size.

[0004] To address the aforementioned issues, there is an urgent need for a tooling system with a wide range of applications that can be used to shape thin-walled parts of different diameters. Utility Model Content

[0005] To address the shortcomings of existing technologies, the present invention provides a tooling for shaping thin-walled parts, which solves the problems of poor targeting, narrow applicability, and inability to adapt to shaping parts of multiple sizes in existing technologies.

[0006] To solve the above problems, the technical solution adopted by this utility model is: a tooling for shaping thin-walled parts, which adapts to different sizes of blind rivets by setting arc-shaped clamping surfaces of different sizes on the clamp, and the clamp is detachable and can be replaced with different types of clamps at any time to adapt to different shaping parts. The tooling includes a base (1), a base (2) mounted on the base, a replaceable clamp (3), a support rod (4), a connecting plate (5), a handle (6), a gear (7), and a gear rod (8); the support rod (4) is vertically mounted on the base (1), and the connecting plate (5) is connected to the upper part of the support rod (4); the gear (7) is rotatably connected to the connecting plate (5), and the gear (7) meshes with the gear rod (8); the lower end of the handle (6) is fixedly connected to the gear (7) to drive the gear (7) to rotate, thereby driving the gear rod (8) to move linearly downward to close the clamp (3); the clamp (3) is detachably mounted on the base (2), and the clamp (3) has several arc-shaped clamping surfaces of different sizes, which match the outer diameter of the thin-walled part to be shaped.

[0007] Furthermore, there are multiple clamps (3), each clamp (3) has a different size of arc-shaped clamping surface, and the clamps (3) are detachably installed on the base (2) by fasteners; the clamps (3) include an upper clamp body (31) and a lower clamp body (32), the upper clamp body (31) and the lower clamp body (32) are hinged, and at least two arc-shaped clamping surfaces of different sizes are opened on the opposite inner surfaces of the upper clamp body (31) and the lower clamp body (32), and the curvature of each arc-shaped clamping surface matches the shape of the thin-walled part to be shaped.

[0008] Furthermore, it also includes a threaded rod (9) and a limiting plate (10). The threaded rod (9) passes through the connecting plate (5) and can be adjusted up and down by rotation. After adjustment, it is locked and fixed with a nut. The limiting plate (10) is fixedly set at the top of the gear rod (8).

[0009] Furthermore, the lower end of the threaded rod (9) can be adjusted to contact the base (2), and the upper end of the threaded rod (9) can be adjusted to contact the limiting plate (10) to limit the final stroke of the gear rod (8) moving downward, thereby controlling the degree of closure of the clamp (3).

[0010] Compared with existing technologies, the beneficial effects of this solution are: 1. High versatility: The clamps are designed to be replaceable or have multiple cavities, and one set of tooling can meet the shaping needs of thin-walled parts of various specifications.

[0011] 2. High forming accuracy: Through the transmission of force by gears and gear rods, the movement is smooth and the force is applied evenly. With the help of the adjustable limit mechanism, the forming size can be precisely controlled, effectively ensuring the cylindricity and fit of the workpiece.

[0012] 3. Simple and efficient operation: The manual operation is intuitive, and after debugging, it can be carried out in a fast cycle, which greatly improves production efficiency.

[0013] 4. Stable and reliable structure: The whole structure adopts a rigid structure, which ensures the stability of the shaping process. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of a tooling for shaping thin-walled parts according to the present invention.

[0015] In the diagram: 1-base, 2-base, 3-clamping clamp, 31-upper clamp body, 32-lower clamp body, 4-support rod, 5-connecting plate, 6-handle, 7-gear, 8-gear rod, 9-threaded rod, 10-limiting plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Implementation, for example, attached Figure 1As shown: This embodiment is a tooling for shaping thin-walled parts, including a base 1, a base 2 set on the base, a clamp 3, a support rod 4, a connecting plate 5, a handle 6, a gear 7, and a gear rod 8; the support rod 4 is vertically set on the base 1, and the connecting plate 5 is connected to the upper part of the support rod 4; the gear 7 is rotatably connected to the connecting plate 5, and the gear 7 meshes with the gear rod 8; the lower end of the handle 6 is fixedly connected to the gear 7 for driving the gear 7 to rotate; the clamp 3 is detachably set on the base 2, and the clamp 3 has several arc-shaped clamping surfaces of different sizes, which match the outer diameter of the thin-walled part; when the handle 6 is rotated, the gear 7 can be driven to rotate, driving the gear rod 8 meshing with it to move downward linearly, and the lower end of the gear rod 8 acts on the clamp 3, driving the clamp 3 to close, thereby applying a uniform shaping force to the thin-walled part placed therein. This solution uses the cooperation of handle 6, gear 7, and gear rod 8 to close the clamping clamp 3 by pressing down. Compared with directly driving the clamping clamp 3 to close, the long lever arm of handle 6 and the transmission ratio of gear 7 can generate a larger clamping force with less manual force, converting the rotational motion into precise linear motion and making the control more precise. On the other hand, directly driving the clamping clamp 3 to close, such as by pressing it with your hand, cannot amplify the force, is not labor-saving to operate, and has poor closing speed and control precision. It is not the optimal solution for consistent operations that require a certain shaping force and precision.

[0018] In this solution, there are multiple clamps 3, each with a different size of arc-shaped clamping surface. The clamps 3 are detachably mounted on the base 2 using fasteners such as bolts, allowing them to be disassembled and replaced at any time. The clamps 3 include an upper clamp body 31 and a lower clamp body 32, which are hinged together. At least two arc-shaped clamping surfaces of different sizes are provided on the opposite inner surfaces of the upper clamp body 31 and the lower clamp body 32. The curvature of each arc-shaped clamping surface matches the shape of the thin-walled part to be shaped, so as to facilitate the replacement of clamps of different sizes to adapt to different types of thin-walled parts.

[0019] In this design, the upper and lower jaws are hinged, rather than the upper jaw 31 being fixed to the gear rod 8. This is because the gear rod 8 moves in a vertical, linear motion. The clamping jaw 3 is used to clamp and release a circular workpiece. The upper and lower jaws are hinged together to form a complete lever mechanism. The upper jaw 31 moves in an arc around the hinge point, rather than in a straight line, thus achieving both labor saving and force amplification. The end of the gear rod 8 acts on a certain part (i.e., the force point) of the upper jaw 31, driving the lever mechanism to move. When the gear rod 8 moves downward, it drives the upper jaw 31 to rotate relative to the lower jaw 32, thereby closing the jaws. If the upper jaw 31 is rigidly fixed to the linearly moving gear rod 8, there is no lever. The upper jaw cannot fit the workpiece at the correct angle and position, and may only slide or make point contact on the workpiece surface, failing to provide a uniform, radial shaping force. The downward force of the gear rod 8 is directly and almost one-to-one transmitted to the downward force of the jaws. This force is not directed towards the center of the circle; when shaping a circular workpiece, it may flatten the workpiece instead of making it round.

[0020] To accommodate different degrees of closure of the clamping clamp 3 during shaping, this fixture also includes a threaded rod 9 and a limiting plate 10. The threaded rod 9 passes through the connecting plate 5 and its vertical position can be adjusted by rotation to set the shaping stroke. The limiting plate 10 is fixedly mounted on the top of the gear rod 8. The lower end of the threaded rod 9 can be adjusted to contact the base 2, and the upper end of the threaded rod 9 can be adjusted to contact the limiting plate 10. When the threaded rod 9 is rotated so that its lower end just contacts the base 2, or a certain gap is reserved according to the shaping requirements, the threaded rod 9 is locked in place with a nut. When the gear rod 8 moves downward, the limiting plate 10 at its top will eventually contact the upper end of the threaded rod 9, stopping the movement and limiting the final downward stroke of the gear rod 8, thereby precisely controlling the closing position and degree of the clamping clamp 3. This solution, through the cooperation of the limiting plate 10 and the threaded rod 9, maintains the position during operation, preventing rebound or over-shaping. Working principle: First, select a clamping jaw 3 with a corresponding arc-shaped clamping surface according to the diameter of the thin-walled part to be shaped, or select a suitable arc-shaped clamping surface on the clamping jaw 3. Place the workpiece in the arc-shaped clamping surface of the lower clamping body 32. The operator turns the handle 6, which drives the gear 7 to rotate, driving the gear rod 8 to move downward. The lower end of the gear rod 8 pushes the upper clamping body 31 of the clamping jaw 3, causing it to rotate around the hinge point, thereby closing with the lower clamping body 32 and shaping the workpiece.

[0021] The shaping fixtures in this solution can be used to shape thin-walled parts of different sizes, offering a wide range of adaptability and greater flexibility.

[0022] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tooling for shaping thin-walled parts, characterized in that: The device includes a base (1), a base (2) mounted on the base, a replaceable clamp (3), a support rod (4), a connecting plate (5), a handle (6), a gear (7), and a gear rod (8). The support rod (4) is vertically mounted on the base (1), and the connecting plate (5) is connected to the upper part of the support rod (4). The gear (7) is rotatably connected to the connecting plate (5), and the gear (7) meshes with the gear rod (8). The lower end of the handle (6) is fixedly connected to the gear (7) to drive the gear (7) to rotate, thereby driving the gear rod (8) to move linearly downward to close the clamp (3). The clamp (3) is detachably mounted on the base (2), and the clamp (3) has several arc-shaped clamping surfaces of different sizes, which match the outer diameter of the thin-walled part to be shaped.

2. The tooling for shaping thin-walled parts according to claim 1, characterized in that: There are multiple clamps (3), each clamp (3) has a different size of arc-shaped clamping surface. The clamps (3) are detachably installed on the base (2) by fasteners. The clamps (3) include an upper clamp body (31) and a lower clamp body (32). The upper clamp body (31) and the lower clamp body (32) are hinged. At least two arc-shaped clamping surfaces of different sizes are opened on the opposite inner surfaces of the upper clamp body (31) and the lower clamp body (32). The curvature of each arc-shaped clamping surface matches the shape of the thin-walled part to be shaped.

3. The tooling for shaping thin-walled parts according to claim 1 or 2, characterized in that: It also includes a threaded rod (9) and a limiting plate (10). The threaded rod (9) passes through the connecting plate (5) and can be adjusted up and down by rotation. After adjustment, it is locked and fixed with a nut. The limiting plate (10) is fixedly set at the top of the gear rod (8).

4. The tooling for shaping thin-walled parts according to claim 3, characterized in that: The lower end of the threaded rod (9) can be adjusted to contact the base (2), and the upper end of the threaded rod (9) can be adjusted to contact the limiting plate (10) to limit the final stroke of the gear rod (8) moving downward, thereby controlling the degree of closure of the clamp (3).

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