Rotational symmetry riveting tool

Abstract

The utility model relates to riveting tool technical field, concretely relates to a kind of rotary symmetry riveting tool.It includes riveting tool, and riveting tool includes riveting body, and bearing integrally installed in riveting body inside;Bearing is sleeved on the mounting shaft of rotary head terminal, and the bearing on mounting shaft drives the riveting body symmetrically installed at its two sides to carry out 360 ° rotation;Riveting body includes the connecting portion connected with bearing, and riveting portion located at the terminal of connecting portion, and riveting portion is radially outwardly bulged from riveting body and forms riveting surface, and riveting surface is the curved surface with two ends up and middle recessed.It is rotated by bearing transmission rotary force, realizes the 360 ° all-around rotation of riveting body and unpowered autorotation, and workpiece deformation riveting is utilized to frictional force;The curved surface setting of two ends up and middle recessed of riveting surface makes stress evenly distributed, and middle recessed disperses and absorbs transverse force, and two ends up wrap around the edge of guiding workpiece, effectively prevent workpiece curling flanging, ensure riveting flatness.

Description

Technical Field

[0001] This utility model relates to the field of riveting fixture technology, specifically to a rotationally symmetrical riveting fixture. Background Technology

[0002] In the field of mechanical manufacturing and processing, riveting, as a common connection process, is widely used in the assembly of various products. Taking the quick-clamping tooling for riveting disclosed in Chinese Patent Publication No. CN222873275U as an example, it has obvious limitations in actual riveting processes. When facing workpieces with complex shapes or requiring riveting at multiple angles, the tooling often needs to be adjusted multiple times to change the tooling position or the workpiece placement angle, which increases the difficulty of operation and reduces production efficiency. During riveting, the edges of the workpiece are prone to curling and folding due to uneven force, which not only seriously affects the riveting quality and reduces the product qualification rate, but also requires additional manpower and material resources for repair work later. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rotationally symmetrical riveting fixture.

[0004] The technical solution adopted in this utility model is as follows: A rotationally symmetrical riveting fixture includes a riveting fixture, which includes a riveting body and a bearing integrally installed within the riveting body. The bearing is sleeved on a mounting shaft at the end of a rotating head. The rotating head drives the mounting shaft to rotate, and the bearing on the mounting shaft drives the riveting bodies symmetrically installed on both sides of it to rotate 360°. The riveting body includes a connecting part connected to the bearing and a riveting part located at the end of the connecting part. The riveting part expands radially outward from the riveting body to form a riveting surface, which is a curved surface with both ends raised and the middle recessed.

[0005] This technical solution achieves omnidirectional rotation of the riveting body by setting up a rotationally symmetrical riveting fixture. It utilizes friction to deform and rivet the workpiece, while simultaneously preventing curling and folding, thus improving riveting efficiency. Specifically, a bearing is sleeved on the mounting shaft at the end of the rotating head, transmitting the rotational force of the rotating head to the bearing. The bearing then drives the symmetrically mounted riveting bodies on both sides to rotate synchronously, achieving 360° omnidirectional riveting. The riveting surface abuts against the workpiece surface to form a friction pair. Under the action of friction, the riveting body rotates without power around the bearing, achieving deformation riveting of the workpiece. The curved surface has raised ends and a concave middle shape. When the riveting surface abuts against the workpiece surface and deforms during riveting, the stress is more evenly distributed in the curved surface contact area. The concave middle part acts as a buffer, dispersing and absorbing some of the lateral force generated during riveting, preventing stress concentration at the workpiece edge, thereby reducing the possibility of curling and folding due to excessive force. The raised ends wrap around and guide the workpiece edge, suppressing edge deformation and curling, ensuring the flatness of the workpiece during the riveting process.

[0006] In addition, the rotationally symmetric riveting fixture proposed above according to this utility model may also have the following additional technical features: According to one embodiment of the present invention, the rotating head is mounted on the motor press of the equipment.

[0007] According to one embodiment of the present invention, a base is provided below the rotating head, a rotating shaft is installed in the middle of the base, and a workpiece to be riveted is fixed on the rotating shaft.

[0008] According to one embodiment of the present invention, the rotating head drives the riveting surface to abut against the workpiece surface, and the riveting surface and the workpiece form a friction pair. The riveting fixture performs deformation riveting on the workpiece through friction.

[0009] According to one embodiment of the present invention, the riveting body rotates 360° around the rotating head and with the bearing as the diameter; at the same time, under the action of friction between the riveting surface and the workpiece, the riveting body rotates without power around the bearing.

[0010] According to one embodiment of the present invention, the riveting surface abuts against the surface of the workpiece, and a curved surface is provided in the middle of the riveting surface to prevent the workpiece from curling or turning over.

[0011] Compared with the prior art, this utility model has the following advantages: (1) By transmitting rotational force through bearings, the riveting body can rotate 360° in all directions and rotate without power. It uses friction to deform and rivet the workpiece, greatly improving riveting efficiency and flexibility, and meeting the riveting requirements of different angles. (2) The curved surface with raised ends and concave middle of the riveting surface is designed to distribute stress evenly, and the concave middle disperses and absorbs lateral force. The raised ends wrap around the edge of the guide workpiece, effectively preventing the workpiece from curling and turning over, and ensuring the flatness of the riveting. (3) The structure is compact and reasonable. The rotating head is installed on the motor press, and the base is set below to fix the workpiece, ensuring the stability of the riveting process. Attached Figure Description

[0012] Figure 1 This is a diagram showing the usage state of this utility model.

[0013] Figure 2 This is a cross-sectional view of the present invention.

[0014] Figure 3 This is a partial enlarged view of the present invention.

[0015] In the diagram: 1. Rotating head; 2. Mounting shaft; 3. Riveting fixture; 31. Riveting body; 311. Connecting part; 312. Riveting part; 313. Riveting surface; 32. Bearing; 4. Base; 5. Rotating shaft. 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 like Figures 1 to 3 As shown, this embodiment provides a rotationally symmetrical riveting fixture, including a riveting fixture 3. The riveting fixture 3 includes a riveting body 31 and a bearing 32 integrally installed in the riveting body 31. The bearing 32 is sleeved on the mounting shaft 2 at the end of the rotating head 1. The rotating head 1 drives the mounting shaft 2 to rotate, and the bearing 32 on the mounting shaft 2 drives the riveting body 31, which is symmetrically installed on both sides of it, to rotate 360°. The riveting body 31 includes a connecting part 311 connected to the bearing 32 and a riveting part 312 located at the end of the connecting part 311. The riveting part 312 expands radially outward from the riveting body 31 to form a riveting surface 313. The riveting surface 313 is a curved surface with both ends raised and the middle recessed.

[0018] like Figures 1 to 3 As shown, this technical solution achieves omnidirectional rotation of the riveting body 31 by setting a rotationally symmetrical riveting fixture 3, using friction to deform and rivet the workpiece, while preventing the workpiece from curling or turning over, thus improving the riveting efficiency. Specifically, the bearing 32 is sleeved on the mounting shaft 2 at the end of the rotating head 1, transmitting the rotational force of the rotating head 1 to the bearing 32. The bearing 32 then drives the riveting bodies 31, which are symmetrically mounted on both sides, to rotate synchronously, achieving 360° all-around riveting. The riveting surface 313 abuts against the workpiece surface to form a friction pair. Under the action of friction, the riveting body 31 rotates without power around the bearing 32, achieving deformation riveting of the workpiece. The curved surface has a shape with raised ends and a concave middle. When the riveting surface 313 abuts against the workpiece surface and deforms during riveting, the stress is more evenly distributed in the curved surface contact area. The concave middle part forms a buffer, dispersing and absorbing some of the lateral force generated by riveting, avoiding stress concentration at the edge of the workpiece, thereby reducing the possibility of the edge curling or turning over due to excessive force. The raised ends form a wrapping and guiding effect on the edge of the workpiece, suppressing edge deformation and curling, and ensuring the flatness of the workpiece during the riveting process.

[0019] In addition, the rotationally symmetric riveting fixture proposed above according to this utility model may also have the following additional technical features: According to one embodiment of the present invention, the rotating head 1 is mounted on the motor press of the equipment.

[0020] According to one embodiment of the present invention, a base 4 is provided below the rotating head 1, a rotating shaft 5 is installed in the middle of the base 4, and a workpiece to be riveted is fixed on the rotating shaft 5.

[0021] According to one embodiment of the present invention, the rotating head 1 drives the riveting surface 313 to abut against the surface of the workpiece, and the riveting surface 313 and the workpiece form a friction pair. The riveting fixture 3 performs deformation riveting on the workpiece through friction.

[0022] According to one embodiment of the present invention, the riveting body 31 rotates 360° around the rotating head 1 and with the bearing 32 as the diameter; at the same time, under the action of friction between the riveting surface 313 and the workpiece, the riveting body 31 rotates without power around the bearing 32.

[0023] According to one embodiment of the present invention, the riveting surface 313 abuts against the surface of the workpiece, and a curved surface is provided in the middle of the riveting surface 313 to prevent the workpiece from curling or turning over.

[0024] The usage process of the above embodiments is as follows: First, the workpiece to be riveted is fixed on the rotating shaft 5 of the base 4 below the rotating head 1. The rotating head 1 is mounted on the motor press of the equipment. The motor press is started, and the rotating head 1 begins to rotate, driving the mounting shaft 2 at its end to rotate. Since the bearing 32 is sleeved on the mounting shaft 2, the rotational force of the rotating head 1 is transmitted to the bearing 32 through the mounting shaft 2, which in turn drives the riveting bodies 31, which are symmetrically mounted on both sides, to rotate 360° around the rotating head 1 and with the bearing 32 as the diameter. When the riveting body 31 rotates to contact the surface of the workpiece, the riveting surface 313 abuts against the surface of the workpiece to form a friction pair. Under the action of friction, the riveting body 31 rotates without power around the bearing 32, performing deformation riveting on the workpiece. During this process, the curved surface of the riveting surface 313, with its raised ends and concave middle, ensures that the stress is evenly distributed. The concave middle part buffers and absorbs the lateral force, and the raised ends wrap around and guide the edge of the workpiece to prevent the workpiece from curling or turning over, ensuring the flatness and quality of the riveting.

[0025] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A rotationally symmetrical riveting tool, characterized in that The riveting fixture (3) includes a riveting body (31) and a bearing (32) integrally installed in the riveting body (31). The bearing (32) is sleeved on the mounting shaft (2) at the end of the rotating head (1). The rotating head (1) drives the mounting shaft (2) to rotate. The bearing (32) on the mounting shaft (2) drives the riveting body (31) symmetrically installed on both sides to rotate 360°. The riveting body (31) includes a connecting part (311) connected to the bearing (32) and a riveting part (312) located at the end of the connecting part (311). The riveting part (312) expands outward from the radial direction of the riveting body (31) to form a riveting surface (313). The riveting surface (313) is a curved surface with both ends raised and the middle recessed.

2. The rotationally symmetrical riveting tool according to claim 1, characterized in that The rotating head (1) is mounted on the motor press of the equipment.

3. The rotationally symmetrical riveting tool according to claim 1, wherein A base (4) is provided below the rotating head (1), and a rotating shaft (5) is installed in the middle of the base (4). The workpiece to be riveted is fixed on the rotating shaft (5).

4. The rotationally symmetrical riveting tool according to claim 3, characterized in that The rotating head (1) drives the riveting surface (313) to come into contact with the workpiece surface, and the riveting surface (313) and the workpiece form a friction pair. The riveting fixture (3) performs deformation riveting on the workpiece through friction.

5. The rotationally symmetrical riveting tool according to claim 4, characterized in that The riveting body (31) rotates 360° around the rotating head (1) and with the bearing (32) as the diameter; at the same time, under the action of friction between the riveting surface (313) and the workpiece, the riveting body (31) rotates without power around the bearing (32).

6. The rotationally symmetrical riveting tool according to claim 1, wherein The riveting surface (313) abuts against the surface of the workpiece, and a curved surface is provided in the middle of the riveting surface (313) to prevent the workpiece from curling and turning.

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