Riveting tool
By employing a rotating shaft and a limiting seat structure in the riveting fixture, rapid adaptation to rivets of different sizes can be achieved, solving the problem of wasted riveting fixture resources and improving the flexibility and efficiency of riveting.
Patent Information
- Application Number
- CN202423047864.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing riveting fixtures require changing the mounting base when dealing with rivets of different sizes, resulting in a waste of resources.
Design a riveting fixture that uses a rotating shaft and a limiting seat structure. The limiting seats are evenly spaced along the circumference of the rotating shaft, and the limiting grooves are of different sizes. The rotating shaft is driven to rotate by a rotating component so that the limiting seats correspond to the extrusion head, thereby achieving rapid adaptation to rivets of various sizes.
The same riveting fixture enables the riveting of rivets of various sizes, reducing resource waste and improving the flexibility and efficiency of riveting.
Smart Images
Figure CN223476235U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of riveting, and in particular to a riveting fixture. Background Technology
[0002] In manufacturing, riveting is a common joining process, widely used for joining various materials and structures. Riveting fixtures are the tools used to achieve the riveting process.
[0003] For riveting fixtures in related technologies, refer to Figure 1 The assembly includes a body 20, a positioning seat 21, a pressing seat 22, and a power component 23. The positioning seat 21 is fixed to the body 20. The power component 23 is mounted on the body 20 and drives the pressing seat 22 to move up and down within the body 20. The positioning seat 21 is located directly below the pressing seat 22. The top of the positioning seat 21 has a groove for the rivet head to abut. In use, the rivet is first heated, then the rivet head is inserted into the groove of the positioning seat 21. Then, the joints of the two assembled workpieces are simultaneously protruded through the rivet shank. Afterward, the power component 23 drives the pressing seat 22 to move downward, pressing and deforming the rivet shank and fitting it onto the assembled workpiece for riveting.
[0004] Regarding the aforementioned technologies, during the assembly process, the assembled workpiece is prone to mate with rivets of different sizes. The head sizes of rivets of different sizes are also not easy to match. Therefore, when assembling with rivets of different sizes, it is necessary to change to a riveting fixture whose mounting seat slot size matches the rivet head size, resulting in a waste of resources. Utility Model Content
[0005] To reduce resource waste, this application provides a riveting fixture.
[0006] This application provides a riveting fixture, which adopts the following technical solution:
[0007] A riveting fixture includes a frame, an extrusion head, and a drive component. The drive component is mounted on the frame and connected to the extrusion head to move the extrusion head up and down. It also includes a limiting assembly.
[0008] A rotating shaft is rotatably connected to the frame;
[0009] The limiting seat has multiple seats that are evenly spaced along the circumference of the rotating shaft. Each limiting seat has a limiting groove at the end away from the rotating shaft for the rivet head to abut. The limiting grooves on different limiting seats have different sizes.
[0010] A rotating component, mounted on the frame, is used to drive the rotating shaft to rotate so that the different limiting seats rotate to face the extrusion heads.
[0011] By adopting the above technical solution, the rotating shaft is driven by the rotating component to rotate to different limit seats so that they are opposite to the extrusion head. This allows for the replacement of the limit slot opposite to the extrusion head. Thus, when riveting rivets of different sizes, by changing the limit seat opposite to the extrusion head, the rivet can quickly engage with the limit seat of the corresponding size. This enables the riveting of rivets of various sizes on the same riveting fixture, reducing resource waste.
[0012] Optionally, the limiting seat can be detachably connected to the rotating shaft.
[0013] By adopting the above technical solution, and through the detachable connection between the limiting seat and the rotating shaft, the limiting seat with different limiting groove sizes can be replaced as needed, thereby further improving the adaptability range of the limiting component to rivet sizes.
[0014] Optionally, the bottom of the frame extends to a base opposite to the rotating shaft, a support seat is movable on the base, and the rotating shaft forms an abutment between two adjacent limiting seats. When one of the limiting seats is opposite to the extrusion head, the support seat can move to abut against the abutment located at the bottom of the rotating shaft.
[0015] By adopting the above technical solution, the support seat abuts against the bottom of the rotating shaft, so that the support seat supports the rotating shaft when the pressing head presses the rivet downward, thereby improving the stability of the rotating shaft.
[0016] Optionally, the support seat slides through the frame, and the support seat is provided with a first anti-movement part and a second anti-movement part along its own sliding direction. When the first anti-movement part moves to abut against the frame, the support seat moves away from the abutting part. When the second anti-movement part moves to abut against the frame, the support seat abuts against the abutting part.
[0017] By adopting the above technical solution, the first anti-movement part and the second anti-movement part can guide the movement distance of the support base, so that the support base can quickly reach the designated position and then stop moving.
[0018] Optionally, the frame has a threaded clamping rod that can abut against the side wall of the support seat in a direction that moves toward or away from the support seat.
[0019] By adopting the above technical solution, the clamping rod can limit the support seat, thereby improving the stability of the support seat when supporting the contact part.
[0020] Optionally, the support base has a handle.
[0021] Optionally, the rotating component includes a rotating source, a first sprocket, a second sprocket, and a transmission chain. The rotating source is mounted on the frame, the first sprocket is located at the output end of the rotating source, the second sprocket is coaxially arranged with the rotating shaft, and the transmission chain meshes with both the first sprocket and the second sprocket.
[0022] Optionally, the number of teeth on the first sprocket is less than the number of teeth on the second sprocket.
[0023] By adopting the above technical solution, the number of teeth on the first sprocket is less than the number of teeth on the second sprocket, so that when the rotating source drives the rotating shaft to rotate, the output speed of the rotating shaft is less than the input speed of the rotating source, thereby reducing the speed of the rotating shaft and improving its stability.
[0024] In summary, this application has the following beneficial effects:
[0025] The rotating shaft rotates to change the position of the limiting seat, so that the limiting seat with the limiting groove adapted to the rivet head size rotates to be opposite to the extrusion head, so that the rivet can be engaged with the limiting seat corresponding to the extrusion head. This allows for the riveting of rivets of various sizes on the same riveting fixture, reducing the waste of resources. Attached Figure Description
[0026] Figure 1 This is a structural diagram of the related technology;
[0027] Figure 2 This is a structural schematic diagram of an embodiment of this application;
[0028] Figure 3 This is a schematic diagram of the structure of the rotating shaft in an embodiment of this application;
[0029] Figure 4 This is a schematic diagram of the exploded structure of the limiting seat and the rotating shaft in an embodiment of this application.
[0030] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Extrusion head; 3. Drive component; 4. Rotating shaft; 5. Limiting seat; 6. Limiting groove; 7. Rotating component; 71. Rotation source; 72. First sprocket; 73. Second sprocket; 74. Conveyor chain; 8. Base; 9. Support seat; 10. Contact part; 11. First anti-shift part; 12. Second anti-shift part; 13. Pressing rod; 14. Pull handle; 15. Operating chamber; 16. Perforation; 17. Ring groove; 18. Stud; 19. Threaded groove; 20. Machine body; 21. Positioning seat; 22. Extrusion seat; 23. Power component. Detailed Implementation
[0031] The following is combined with Figure 2-4 This application is described in further detail.
[0032] This application discloses a riveting fixture. (Refer to...) Figure 2 The riveting fixture includes a frame 1, an extrusion head 2, a drive component 3, and a limiting assembly. An operating cavity 15 is formed on one side of the frame 1. The extrusion head 2 is located in the operating cavity 15. The drive component 3 is installed on the top of the frame 1 and connected to the extrusion head 2 to drive the extrusion head 2 to move up and down in the operating cavity 15. The limiting assembly is installed on the frame 1 and limits the rivet in the operating cavity 15. The limiting assembly is located below the extrusion head 2.
[0033] In use, the head of the rivet is placed on the limiting component with the shank facing upward. Two assembly workpieces are simultaneously fitted onto the rivet head. Then, the driving component 3 drives the pressing head 2 to move downward to abut against the rivet shank, causing the rivet shank to deform and flatten downward onto the assembly workpieces, so as to rivet the two assembly workpieces.
[0034] Among them, the driving component 3 is a cylinder. The cylinder is fixedly installed on the frame 1, and the piston rod of the cylinder is set downward and extends into the operating chamber 15. The top of the extrusion head 2 is fixed on the piston rod of the cylinder. When the piston rod of the cylinder retracts, it drives the extrusion head 2 to move upward and be stored. When the piston rod of the cylinder extends, it drives the extrusion head 2 to move downward and be riveted.
[0035] Reference Figure 2 and Figure 3 The limiting assembly includes a rotating shaft 4, a limiting seat 5, and a rotating component 7. The rotating shaft 4 is rotatably connected to the frame 1. The rotating shaft 4 is rod-shaped and extends horizontally. One end of the rotating shaft 4 extends into the operating chamber 15 and is located below the extrusion head 2. The other end of the rotating shaft 4 passes through the frame 1 and extends away from the operating chamber 15. The frame 1 has a through hole 16 for the rotating shaft 4 to rotate and pass through. A protrusion (not shown in the figure) is fixed on the top wall of the frame 1 inside the through hole 16. The outer wall of the rotating shaft 4 has an annular groove 17 along its circumference. The protrusion abuts into the annular groove 17. When the rotating shaft 4 rotates, the protrusion moves in the annular groove 17 and restricts the movement of the rotating shaft 4 along its own axis.
[0036] Multiple limiting seats 5 are installed on one end of the rotating shaft 4 located in the operating cavity 15. These limiting seats 5 are evenly spaced along the circumference of the rotating shaft 4, and each limiting seat 5 extends along a direction perpendicular to the axis of the rotating shaft 4. Each limiting seat 5 has a limiting groove 6 at its end away from the rotating shaft 4, which is used for the head of the rivet to abut. The dimensions of the limiting groove 6 on each limiting seat 5 are different. In this embodiment, there are three limiting seats 5. In other embodiments, there may be five limiting seats 5.
[0037] Reference Figure 2The rotating component 7 is installed between the frame 1 and the rotating shaft 4 to drive the rotating shaft 4 to rotate. Assuming that the number of limiting seats 5 is n, the angle of rotation of the rotating shaft 4 each time is 360 / n, so that the rotating shaft 4 stops rotating after each time it drives one of the limiting seats 5 to rotate directly below the extrusion head 2. Therefore, in this embodiment, the angle of rotation of the rotating shaft 4 each time is 120°.
[0038] When the limiting seat 5 is directly below the pressing head 2, the limiting groove 6 is located at the top of the limiting seat 5, allowing the head of the rivet to be inserted into the limiting groove 6 for assembly. When it is necessary to change to a rivet of a different size, the rotating shaft 4 is rotated until the limiting seat 5 with the corresponding limiting groove 6 is directly below the pressing head 2, so as to quickly move the corresponding limiting seat 5 to the riveting position.
[0039] Reference Figure 4 The rotating component 7 includes a rotation source 71, a first sprocket 72, a second sprocket 73, and a transmission chain 74. A mounting bracket is bolted to the side of the frame 1 facing away from the operating cavity 15. The rotation source 71 is a motor, mounted on the mounting bracket. The axis of the motor's output end is parallel to the axis of the rotating shaft 4, and the motor's output end faces away from the operating cavity 15. The first sprocket 72 is coaxially fixedly sleeved on the motor's output end, and the second sprocket 73 is coaxially fixedly sleeved on the end of the rotating shaft 4 away from the operating cavity 15. The transmission chain 74 simultaneously meshes with both the first sprocket 72 and the second sprocket 73. When the motor's output end rotates, the transmission chain 74 drives the second sprocket 73 and the rotating shaft 4 to rotate.
[0040] Furthermore, the limiting seat 5 is detachably connected to the rotating shaft 4 to facilitate replacement of the limiting seat 5. Specifically, a stud 18 is fixed to the end of the limiting seat 5 away from the limiting groove 6, and a threaded groove 19 is provided on the outer wall of the rotating shaft 4 for the stud 18 to be screwed in. The threaded groove 19 corresponds one-to-one with the limiting seat 5. The limiting seat 5 is installed on the rotating shaft 4 by the cooperation of the stud 18 and the threaded groove 19. The distance between the limiting seat 5 and the extrusion head 2 can be adjusted by adjusting the screwing depth of the stud 18, so that the distance between the extrusion head 2 and the assembly workpiece can be adapted to the extension distance of the extrusion head 2 when riveting assembly workpieces of different thicknesses.
[0041] Reference Figure 2 and Figure 4 Furthermore, in order to improve the stability of the rotating shaft 4 when the extrusion head 2 is pressed down, a base 8 is integrally formed at the bottom of the frame 1 towards the operating chamber 15. The lower surface of the base 8 is flush with the lower surface of the frame 1, and a support seat 9 that slides through the frame 1 is moved along the axis of the rotating shaft 4 on the upper surface of the base 8. The upper surface of the support seat 9 is attached to the lower surface of the rotating shaft 4 to support the rotating shaft 4.
[0042] The outer peripheral wall of the rotating shaft 4 between two adjacent limiting seats 5 forms an abutment portion 10. When one of the limiting seats 5 on the rotating shaft 4 is opposite to the extrusion head 2, the abutment portion 10 between the other two limiting seats 5 is located on the lower side of the rotating shaft 4. At this time, the support seat 9 can move towards the operating cavity 15 to fit against the abutment portion 10 located on the lower side of the rotating shaft 4, thereby supporting the rotating shaft 4 when the extrusion head 2 presses down to rivet. When it is necessary to rotate the rotating shaft 4 to replace the limiting seat 5 opposite to the extrusion head 2, the support seat 9 can move away from the operating cavity 15 to move away from the abutment portion 10, so that the support seat 9 does not interfere with the moving limiting seat 5.
[0043] Furthermore, the end of the support base 9 furthest from the operating cavity 15 has a handle 14 for pushing and pulling the support base 9, and a first anti-slip portion 11 and a second anti-slip portion 12 protrude outward from the side wall of the support base 9. The first anti-slip portion 11 and the second anti-slip portion 12 are distributed along the sliding direction of the support base 9, the first anti-slip portion 11 is located in the operating cavity 15, and the second anti-slip portion 12 is located at the end of the support base 9 furthest from the operating cavity 15.
[0044] When the handle 14 moves the support base 9 away from the operating cavity 15 until the first stop part 11 abuts against the side wall of the frame 1 near the operating cavity 15, the support base 9 moves away from the contact part 10. When the handle 14 moves the support base 9 towards the operating cavity 15 until the second stop part 12 abuts against the side wall of the frame 1 away from the operating cavity 15, the support base 9 abuts against the contact part 10 to indicate the position of the support base 9.
[0045] Reference Figure 4 To improve the stability of the support base 9, a clamping rod 13 is threadedly connected to the frame 1 along a direction perpendicular to the sliding direction of the support base 9. One end of the clamping rod 13 located outside the frame 1 has a handle. The clamping rod 13 can be threaded into the frame 1 towards the support base 9 and pressed against the side wall of the support base 9 to restrict its movement. When it is necessary to move the support base 9, the clamping rod 13 is threaded away from the support base 9 until it separates from the support base 9, thereby releasing the lock on the support base 9.
[0046] In addition, the size of the first sprocket 72 is smaller than that of the second sprocket 73, that is, the tooth size of the first sprocket 72 and the second sprocket 73 are the same, and the number of teeth of the first sprocket 72 is less than the number of teeth of the second sprocket 73, so that when the transmission sprocket transmits the speed of the motor output end to the rotating shaft 4, the speed of the rotating shaft 4 is reduced, thereby reducing the wear between the rotating shaft 4 and the support seat 9.
[0047] The implementation principle of a riveting fixture according to an embodiment of this application is as follows: First, the support seat 9 is moved away from the contact part 10 in a direction away from the operating cavity 15. Then, the rotating shaft 4 is rotated until the limiting seat 5 of the corresponding size is opposite to the pressing head 2. Then, the support seat 9 is moved back to the position where it abuts against the contact part 10. Then, the rivet head is placed in the limiting groove 6 of the limiting seat 5. Then, the workpiece is assembled with the rivet. After that, the cylinder drives the pressing head 2 to move downward to perform riveting.
[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A riveting fixture, comprising a frame (1), an extrusion head (2), and a drive component (3), wherein the drive component (3) is mounted on the frame (1) and connected to the extrusion head (2) to drive the extrusion head (2) to move up and down, characterized in that: It also includes a limiting component, the limiting component including Rotating shaft (4) is rotatably connected to the frame (1); The limiting seat (5) has multiple seats that are evenly spaced along the circumference of the rotating shaft (4). Each limiting seat (5) has a limiting groove (6) at one end away from the rotating shaft (4) for the rivet head to abut. The limiting grooves (6) on different limiting seats (5) have different sizes. A rotating component (7) is mounted on the frame (1) and is used to drive the rotating shaft (4) to rotate so that the different limiting seats (5) rotate to be opposite the extrusion head (2).
2. The riveting fixture according to claim 1, characterized in that: The limiting seat (5) is detachably connected to the rotating shaft (4).
3. The riveting fixture according to claim 1, characterized in that: The bottom of the frame (1) extends a base (8) opposite to the rotating shaft (4). A support seat (9) moves on the base (8), and the rotating shaft (4) forms an abutment (10) between two adjacent limiting seats (5). When one of the limiting seats (5) is opposite to the extrusion head (2), the support seat (9) can move to abut against the abutment (10) located at the bottom of the rotating shaft (4).
4. A riveting fixture according to claim 3, characterized in that: The support base (9) slides through the frame (1). The support base (9) is provided with a first anti-movement part (11) and a second anti-movement part (12) along its own sliding direction. When the first anti-movement part (11) moves to abut against the frame (1), the support base (9) moves away from the abutting part (10). When the second anti-movement part (12) moves to abut against the frame (1), the support base (9) abuts against the abutting part (10).
5. A riveting fixture according to claim 4, characterized in that: The frame (1) has a threaded rod (13) that can abut against the side wall of the support (9) in a direction that moves toward or away from the support (9).
6. A riveting fixture according to claim 3, characterized in that: The support base (9) has a handle (14).
7. A riveting fixture according to any one of claims 1-6, characterized in that: The rotating component (7) includes a rotation source (71), a first sprocket (72), a second sprocket (73), and a transmission chain (74). The rotation source (71) is mounted on the frame (1). The first sprocket (72) is located at the output end of the rotation source (71). The second sprocket (73) is coaxially arranged with the rotating shaft (4). The transmission chain (74) meshes with both the first sprocket (72) and the second sprocket (73).
8. A riveting fixture according to claim 7, characterized in that: The number of teeth on the first sprocket (72) is less than the number of teeth on the second sprocket (73).