Spin riveting mechanism

Abstract

The utility model relates to a spin riveting mechanism which is applied to the field of rivet installation and comprises a base, an installation frame is arranged on the base, an installation seat is arranged on the installation frame, a positioning device used for fixing a workpiece is arranged on the installation seat, a spin riveting machine is arranged on the installation frame, and the spin riveting machine is arranged on the installation frame. And a lifting device for driving the spin riveting machine to lift is arranged on the mounting frame. The riveting machine has the technical effects that when a rivet needs to be assembled on a bottom piece of a workpiece, the workpiece is fixed on the mounting seat through the fixing device, and the lifting device is started to drive the riveting machine to lift, so that a riveting head of the riveting machine is driven to be in contact with the rivet on the workpiece, and the rivet is assembled on the bottom piece of the workpiece. The workpiece is positioned and fixed through the fixing device, the deviation possibility of a bottom piece in the rivet assembling process is reduced, the spin riveting installation quality is improved, labor cost is reduced, meanwhile, time and labor are saved, and the production efficiency of spin riveting installation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of rivet installation, and in particular to a rotary riveting mechanism. Background Art

[0002] A rotary riveting machine is a device that fixes rivets on workpieces through rotation and pressure. Its working principle mainly involves eccentric rotation of the spindle and pneumatics. It is widely used in manufacturing industries such as automobiles, building products, aerospace, and electronic products.

[0003] Reference Figure 1 The workpiece includes a bottom plate 1, two mounting holes 2 are formed on the bottom plate 1, and a rivet hole 3 is formed between the two mounting holes 2. In the prior art, the operator first sets the rivet 3 in the rivet hole 3 of the workpiece, then manually fixes the bottom plate 1 of the workpiece, aligns the rivet 3 with the rivet head of the rivet machine, and manually controls the rivet machine to perform the rivet operation on the workpiece.

[0004] The above-mentioned method of manually clamping the workpiece for riveting has a slow overall mechanical production rhythm and is accompanied by a certain risk of accidental human injury. It is time-consuming and labor-intensive, resulting in low production efficiency. Summary of the invention

[0005] In order to help solve the problem that the existing method of manually clamping the workpiece for rotary riveting is time-consuming and labor-intensive, has low production efficiency and the risk of accidentally injuring the operator, the present application provides a rotary riveting mechanism, which adopts the following technical solution: it includes a base, a mounting frame is provided on the base, a mounting seat is provided on the mounting frame, a positioning device for fixing the workpiece is provided on the mounting seat, a rotary riveting machine is arranged on the mounting frame, and a lifting device for driving the rotary riveting machine to rise and fall is provided on the mounting frame.

[0006] In a specific possible implementation scheme, the positioning device includes a base plate arranged on a mounting seat, the base plate is provided with a contour block matching the film, the contour block is provided with positioning columns matching the two mounting holes of the workpiece respectively, and the two positioning columns are respectively passed through the two mounting holes of the workpiece.

[0007] In a specific possible implementation manner, an arc chamfer is provided at one end of the positioning column facing away from the bottom plate.

[0008] In a specific possible implementation scheme, a sliding assembly for driving the base plate to move is provided on the mounting seat, and the sliding assembly includes a magnetically coupled rodless cylinder arranged on the mounting seat, and the base plate is arranged at the output end of the magnetically coupled rodless cylinder.

[0009] In a specific possible implementation scheme, a first guide rail is provided on the mounting seat, a first sliding block matching the first guide rail is slidably connected to the first guide rail, and the base plate is arranged on the first sliding block.

[0010] In a specific possible implementation scheme, the lifting device includes a screw rod rotatably connected to a mounting frame, the mounting frame is provided with a driving motor for driving the screw rod to rotate, and the nut of the screw rod is connected to the riveting machine through a connecting assembly.

[0011] In a specific possible implementation scheme, the connecting assembly includes a connecting seat arranged on the nut of the screw rod, a placement groove is provided on the surface of the connecting seat facing the rotary riveting machine, a connecting block is provided in the placement groove, and a connecting groove matching the connecting block is provided on the surface of the rotary riveting machine facing the connecting seat, and the connecting block is partially inserted in the connecting groove.

[0012] In a specific possible implementation scheme, the mounting frame is provided with a second guide rail, a second slider matching the second guide rail is slidably connected to the second guide rail, and the connecting seat is arranged on the second slider.

[0013] In a specific feasible implementation scheme, a limit seat is provided on the mounting frame, a telescopic cylinder is provided on the limit seat, a limit rod is provided at the output end of the telescopic cylinder, and a limit groove matching the limit rod is provided on the surface of the base plate facing the telescopic cylinder; when the telescopic cylinder drives the limit rod to extend, the limit rod is partially inserted into the limit groove.

[0014] In a specific feasible implementation scheme, a first guide block and a second guide block are provided on the limit seat, and a guide channel matching the limit rod is formed between the first guide block and the second guide block. After the limit rod passes through the guide channel, it is inserted into the limit groove, and the limit rod located in the guide channel contacts the first guide block and the second guide block respectively.

[0015] In summary, the present application has at least the following beneficial technical effects: when it is necessary to assemble a rivet on the bottom plate of a workpiece, the workpiece is fixed on the mounting seat by a fixing device, and the lifting device is started to drive the rotary riveting machine to lift and lower, thereby driving the rotary riveting head of the rotary riveting machine to contact the rivet on the workpiece, and assembling the rivet on the bottom plate of the workpiece. The fixing device is used to position and fix the workpiece, reduce the possibility of the bottom plate shifting during the rivet assembly process, improve the quality of rotary riveting installation, reduce labor costs, save time and effort, and improve the production efficiency of rotary riveting installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a workpiece in the related art.

[0017] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the structure of the base plate in the embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram used to reflect the connection block in the embodiment of the present application.

[0020] Figure 5 It is a schematic diagram of the structure of the first guide block in the embodiment of the present application.

[0021] 1. Base plate; 2. Mounting hole; 3. Rivet; 4. Base; 5. Mounting frame; 6. Mounting seat; 7. Riveting machine; 8. Bottom plate; 9. Profiling block; 10. Positioning column; 11. Guide channel; 12. Magnetic coupled rodless cylinder; 13. First guide rail; 14. First slider; 15. Screw rod; 16. Drive motor; 17. Connecting seat; 18. Placement groove; 19. Connecting block; 20. Connecting groove; 21. Second guide rail; 22. Second slider; 23. Limiting seat; 24. Telescopic cylinder; 25. Limiting rod; 26. Limiting groove; 27. First guide block; 28. Second guide block. DETAILED DESCRIPTION

[0022] The following is combined with Figure 2-5 This application is described in further detail.

[0023] The embodiment of the present application discloses a rotary riveting mechanism.

[0024] Reference Figure 2 and Figure 3 The spin riveting machine 7 includes a base 4, a mounting frame 5 is bolted to the base 4, a mounting seat 6 is bolted to the mounting frame 5, a positioning device for fixing the workpiece is provided on the mounting seat 6, and the spin riveting machine 7 is arranged on the mounting frame 5, and a lifting device for driving the spin riveting machine 7 to rise and fall is provided on the mounting frame 5. Therefore, when it is necessary to assemble the rivet 3 on the bottom plate 1 of the workpiece, the workpiece is fixed on the mounting seat 6 by the fixing device, and the lifting device is started to drive the spin riveting machine 7 to rise and fall, thereby driving the spin riveting head of the spin riveting machine 7 to contact the rivet 3 on the workpiece, and assembling the rivet 3 on the bottom plate 1 of the workpiece.

[0025] Reference Figure 3 and Figure 4 The lifting device includes a screw rod 15 rotatably connected to the mounting frame 5. In the embodiment of the present application, the screw rod 15 is arranged perpendicular to the base 4. The top bolt of the mounting frame 5 is connected with a driving motor 16 for driving the screw rod 15 to rotate. The nut of the screw rod 15 is connected to the riveting machine 7 through a connecting assembly. Therefore, starting the driving motor 16 drives the screw rod 15 at the output end of the driving motor 16 to rotate, thereby driving the nut of the screw rod 15 to move along the direction of the screw rod 15, realizing the lifting and lowering of the riveting machine 7, facilitating the adjustment of the height of the riveting machine 7, and having greater flexibility.

[0026] Reference Figure 3 and Figure 4, two second guide rails 21 are bolted to the mounting frame 5, the screw rod 15 is located between the two second guide rails 21, and the two second guide rails 21 are respectively slidably connected with second sliders 22 that match the size of the second guide rails 21, and the connecting seat 17 is bolted to the second sliders 22. In the embodiment of the present application, the second guide rails 21 are arranged perpendicular to the base 4 and the length direction of the second guide rails 21 is parallel to the length direction of the screw rod 15. Therefore, the second guide rails 21 limit the sliding direction of the second sliders 22, reduce the possibility of the second sliders 22 being offset during the sliding process, and improve the stability of the riveting machine 7 on the connecting seat 17 during the lifting process.

[0027] Reference Figure 3 and Figure 4 The connection assembly includes a connection seat 17 bolted to a nut of a screw rod 15, a placement groove 18 is provided on the surface of the connection seat 17 facing the rotary riveting machine 7, two connection blocks 19 are bolted in the placement groove 18, and a connection groove 20 matching the size of the two connection blocks 19 is provided on the surface of the rotary riveting machine 7 facing the connection seat 17, and the connection blocks 19 are partially inserted in the connection groove 20. Therefore, the operator can easily and conveniently remove the rotary riveting machine 7 from the connection seat 17, which is convenient for subsequent maintenance or replacement of different models of rotary riveting machines 7.

[0028] Reference Figure 3 and Figure 5 The positioning device includes a base plate 8 arranged on the mounting seat 6, and a profiling block 9 matching the size of the bottom plate 1 is bolted to the base plate 8. In the embodiment of the present application, the number of profiling blocks 9 can be set to two, which is convenient for performing riveting operations on two workpieces at the same time, thereby improving the efficiency of riveting assembly. A positioning column 10 matching the two mounting holes 2 of the workpiece is fixedly connected to the profiling block 9, and the two positioning columns 10 pass through the two mounting holes 2 of the workpiece respectively. An arc chamfer is provided at one end of the positioning column 10 away from the base plate 8, and the arc chamfer plays a guiding role while reducing the possibility of the sharp edge scratching the mounting hole 2 of the workpiece. In the embodiment of the present application, an avoidance hole matching the rivet 3 hole can be opened on the profiling block 9 to reduce the interference of the profiling block 9 with the rivet 3 on the workpiece when the workpiece is mounted on the profiling block 9.

[0029] Therefore, the operator sets up the film 1 on the profiling block 9, and makes the two positioning posts 10 pass through the two mounting holes 2 of the workpiece respectively. The positioning posts 10 limit the position of the film 1, thereby realizing the positioning of the workpiece, reducing the possibility of the workpiece shifting during the riveting process, improving the stability of the workpiece placement and the quality of the riveting installation, reducing the labor cost and reducing the possibility of accidental injury to the operator during the riveting operation, thereby improving safety.

[0030] Reference Figure 3 and Figure 5The mounting seat 6 is provided with a sliding assembly for driving the bottom plate 8 to move. The sliding assembly includes a magnetic coupling rodless cylinder 12 mounted on the mounting seat 6, and the bottom plate 8 is arranged at the output end of the magnetic coupling rodless cylinder 12. Two first guide rails 13 are bolted to the mounting seat 6, and first sliders 14 matching the size of the first guide rails 13 are respectively slidably connected to the two first guide rails 13. The bottom plate 8 is bolted to the first sliders 14. The first guide rails 13 limit the sliding direction of the first sliders 14, reducing the possibility of the first sliders 14 being offset during the sliding process, and improving the stability of the bottom plate 8 during the movement process.

[0031] Therefore, the magnetic coupling rodless cylinder 12 is started to drive the base plate 8 at the output end of the magnetic coupling rodless cylinder 12 to move, thereby achieving the adjustable position of the profiling block 9 on the base plate 8, which is more flexible and convenient for adjusting the relative position of the rivet 3 on the workpiece and the rivet head of the rivet machine 7.

[0032] Reference Figure 3 and Figure 5 The mounting frame 5 is bolted with a limit seat 23, a telescopic cylinder 24 is bolted with the limit seat 23, a limit rod 25 is installed at the output end of the telescopic cylinder 24, and a limit groove 26 matching the size of the limit rod 25 is provided on the surface of the bottom plate 8 facing the telescopic cylinder 24; when the telescopic cylinder 24 drives the limit rod 25 to extend, the limit rod 25 is partially inserted in the limit groove 26. The limit seat 23 is bolted with a first guide block 27 and a second guide block 28, and a guide channel 11 matching the size of the limit rod 25 is formed between the first guide block 27 and the second guide block 28. The limit rod 25 passes through the guide channel 11 and is inserted into the limit groove 26. The limit rod 25 located in the guide channel 11 contacts the first guide block 27 and the second guide block 28 respectively. The guide channel 11 between the first guide block 27 and the second guide block 28 limits the telescopic direction of the limit rod 25, reducing the possibility of position deviation of the limit rod 25 during the telescopic process, and facilitating the precise insertion of the limit rod 25 into the limit groove 26 of the base plate 8.

[0033] Therefore, the telescopic cylinder 24 is started, which drives the extending part of the limit rod 25 at the output end of the telescopic cylinder 24 to be inserted into the limit groove 26. The limit rod 25 limits the position of the bottom plate 8, thereby reducing the possibility of position deviation of the bottom plate 8 during the riveting process and improving the stability of the position of the bottom plate 8 during the riveting process.

[0034] The implementation principle of the embodiment of the present application is as follows: when the rivet 3 needs to be assembled on the bottom film 1 of the workpiece, the magnetic coupling rodless cylinder 12 is started to drive the bottom plate 8 at the output end of the magnetic coupling rodless cylinder 12 to move to the position directly below the rivet head of the riveting machine 7; the operator places the bottom film 1 with the rivet 3 on the profiling block 9, so that the two positioning columns 10 are respectively passed through the two mounting holes 2 of the workpiece to fix the position of the workpiece; the telescopic cylinder 24 is started to drive the extending part of the limit rod 25 at the output end of the telescopic cylinder 24 to be inserted into the limit groove 26 to limit the position of the bottom plate 8; the driving motor 16 is started to drive the screw rod 15 at the output end of the driving motor 16 to rotate, thereby driving the nut of the screw rod 15 to move along the direction of the screw rod 15, realizing the lifting and lowering of the riveting machine 7, thereby driving the rivet head of the riveting machine 7 to contact the rivet 3 on the workpiece; the riveting machine 7 is started to assemble the rivet 3 on the bottom film 1 of the workpiece. The workpiece is positioned and fixed by using a fixing device, which reduces the possibility of the bottom plate 1 being offset during the assembly of the rivet 3, improves the quality of the rotary riveting installation, reduces labor costs, saves time and effort, and improves the production efficiency of the rotary riveting installation.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A rotary riveting mechanism, characterized in that: The invention comprises a base (4), a mounting frame (5) being provided on the base (4), a mounting seat (6) being provided on the mounting frame (5), a positioning device for fixing a workpiece being provided on the mounting seat (6), a rotary riveting machine (7) being arranged on the mounting frame (5), and a lifting device for driving the rotary riveting machine (7) to move upward and downward being provided on the mounting frame (5).

2. The rotary riveting mechanism according to claim 1, characterized in that: The positioning device comprises a base plate (8) arranged on a mounting seat (6), the base plate (8) being provided with a profiling block (9) matching the bottom plate (1), the profiling block (9) being provided with positioning columns (10) respectively matching two mounting holes (2) of the workpiece, and the two positioning columns (10) respectively passing through the two mounting holes (2) of the workpiece.

3. The rotary riveting mechanism according to claim 2, characterized in that: An arc-shaped chamfer is provided at one end of the positioning column (10) facing away from the bottom plate (8).

4. The rotary riveting mechanism according to claim 2, characterized in that: The mounting seat (6) is provided with a sliding assembly for driving the base plate (8) to move, the sliding assembly comprising a magnetically coupled rodless cylinder (12) arranged on the mounting seat (6), and the base plate (8) is arranged at the output end of the magnetically coupled rodless cylinder (12).

5. The rotary riveting mechanism according to claim 4, characterized in that: The mounting seat (6) is provided with a first guide rail (13), the first guide rail (13) is slidably connected with a first slider (14) matching the first guide rail (13), and the bottom plate (8) is arranged on the first slider (14).

6. The rotary riveting mechanism according to claim 1, characterized in that: The lifting device comprises a screw rod (15) rotatably connected to a mounting frame (5); a driving motor (16) for driving the screw rod (15) to rotate is provided on the mounting frame (5); and a nut of the screw rod (15) is connected to a rotary riveting machine (7) via a connecting assembly.

7. The rotary riveting mechanism according to claim 6, characterized in that: The connection assembly comprises a connection seat (17) arranged on a nut of a screw rod (15); a placement groove (18) is provided on a surface of the connection seat (17) facing the rotary riveting machine (7); a connection block (19) is provided in the placement groove (18); a connection groove (20) matching the connection block (19) is provided on a surface of the rotary riveting machine (7) facing the connection seat (17); and the connection block (19) is partially inserted in the connection groove (20).

8. The rotary riveting mechanism according to claim 7, characterized in that: The mounting frame (5) is provided with a second guide rail (21), the second guide rail (21) is slidably connected with a second slider (22) matching the second guide rail (21), and the connecting seat (17) is arranged on the second slider (22).

9. The rotary riveting mechanism according to claim 2, characterized in that: A limiting seat (23) is provided on the mounting frame (5), a telescopic cylinder (24) is provided on the limiting seat (23), a limiting rod (25) is provided at the output end of the telescopic cylinder (24), and a limiting groove (26) matching the limiting rod (25) is provided on the surface of the bottom plate (8) facing the telescopic cylinder (24); when the telescopic cylinder (24) drives the limiting rod (25) to extend, the limiting rod (25) is partially inserted into the limiting groove (26).

10. The rotary riveting mechanism according to claim 9, characterized in that: The limiting seat (23) is provided with a first guide block (27) and a second guide block (28); a guide channel (11) matching the limiting rod (25) is formed between the first guide block (27) and the second guide block (28); the limiting rod (25) passes through the guiding channel (11) and is inserted into the limiting groove (26); and the limiting rod (25) located in the guiding channel (11) contacts the first guide block (27) and the second guide block (28) respectively.

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