Double-die-position press-fitting mechanism
By designing a dual-mold pressing mechanism, the problem of frequent rivet head replacement due to the large number of riveting operations in the production of automotive seat frames was solved. This enabled automatic switching of rivet heads and stable riveting of seat frames, improving production efficiency and equipment flexibility.
Patent Information
- Application Number
- CN202520400161.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In the production of car seat frames, when the number of riveting operations exceeds one, the rivet head needs to be replaced frequently, which affects the production cycle and increases labor intensity.
Design a dual-mode pressing mechanism, including a positioning clamping device, a riveting mechanism and a switching cylinder, to realize automatic switching of the riveting joint and multiple riveting. Combined with X-axis and Z-axis guide rails to ensure movement stability, and facilitate the fixing and riveting of the seat frame through the lifting cylinder and U-shaped lifting plate.
It enables automatic switching of rivet joints, reduces labor intensity, improves production cycle and equipment flexibility, and enhances work efficiency.
Smart Images

Figure CN223932516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of riveting, specifically a dual-mold press-fitting mechanism. Background Technology
[0002] The production process of car seat frames requires riveting to connect multiple parts together. This usually requires riveting once or more. When the number of riveting operations exceeds one, the rivet head needs to be replaced, which causes frequent rivet head replacements during riveting and affects the production cycle.
[0003] Therefore, we propose a dual-mold press-fitting mechanism to solve the above problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a dual-mold pressing mechanism.
[0005] This utility model provides a dual-mode pressing mechanism, including a frame. A positioning clamping device for clamping and fixing a seat frame is installed on the top of the frame. Riveting mechanisms are installed on both sides of the positioning clamping device on the top of the frame. The riveting mechanism includes a riveting cylinder fixed on the frame and a mounting bracket installed on the output end of the riveting cylinder. A switching cylinder is fixed on the mounting bracket. A slide plate is fixed on the output end of the switching cylinder. At least two mounting seats are fixed on one side of the slide plate. Riveting joints are installed in the mounting seats.
[0006] Preferably, the mounting base is provided with a mounting groove, and the end of the rivet joint is installed in the mounting groove, which facilitates installation and disassembly. The rivet joint is directly installed into the mounting groove under the action of gravity.
[0007] Preferably, an X-axis guide rail is fixed to the top of the frame, the mounting bracket is slidably connected to the X-axis guide rail, a Z-axis guide rail is fixed to the mounting bracket, and the slide plate is slidably connected to the Z-axis guide rail, so that the mounting bracket and the slide plate move more smoothly.
[0008] Preferably, the positioning and clamping device includes a fixed base fixed to the top of the frame, a support base symmetrically installed inside the fixed base, a positioning groove on the top of the support base, a clamping cylinder and two V-shaped clamping plates hinged on the fixed base, one end of the two V-shaped clamping plates being fixedly connected by a connecting rod, the end of the V-shaped clamping plate away from the connecting rod being positioned opposite the positioning groove, and the piston rod end of the clamping cylinder being hinged to the connecting rod.
[0009] Preferably, a lifting cylinder is fixed to the bottom of the fixed base, and a U-shaped lifting plate is fixed to the output end of the lifting cylinder, and the U-shaped lifting plate and the positioning groove are in the same plane.
[0010] Preferably, the frame is equipped with a support frame for supporting the seat frame.
[0011] The seat frame is mounted on a support frame and positioning slot. A clamping cylinder, combined with a V-shaped clamp, secures the seat frame within the positioning slot. A riveting cylinder drives the mounting bracket and riveting head to rivet the seat frame. By switching cylinders to move the sliding plate and riveting head up and down, different types of riveting heads can be used for riveting.
[0012] Preferably, a material tray is fixed on the top of the frame, and the top of the material tray is provided with a collection groove for accommodating the end of the rivet head, so as to facilitate the storage of the rivet head.
[0013] Compared with related technologies, the present invention provides the following beneficial effects:
[0014] The riveting head automatically switches to meet the needs of riveting products more than twice, effectively reducing the labor intensity of operators and the production cycle, while improving the flexibility of the equipment.
[0015] The seat frame can be easily lifted and removed by using a lifting cylinder combined with a U-shaped lifting plate. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the riveting mechanism of this utility model;
[0018] Figure 3 This is a schematic diagram of the switching cylinder structure of this utility model;
[0019] Figure 4 This is one of the structural schematic diagrams of the positioning and clamping device of this utility model;
[0020] Figure 5 This is the second schematic diagram of the positioning and clamping device of this utility model;
[0021] Figure 6 This is a schematic diagram of the U-shaped support plate structure of this utility model;
[0022] Figure 7 This is a schematic diagram showing the position of the relative positioning and clamping device of the seat frame part of this utility model.
[0023] The following are the labels in the diagram: 1. Frame; 2. Positioning and clamping device; 3. Riveting mechanism; 31. Riveting cylinder; 32. Mounting bracket; 33. Switching cylinder; 34. Slide plate; 35. Mounting base; 351. Mounting slot; 36. Riveting joint; 4. X-axis guide rail; 5. Z-axis guide rail; 21. Fixed base; 22. Support base; 23. Positioning slot; 24. Clamping cylinder; 25. V-shaped clamping plate; 26. Connecting rod; 6. Lifting cylinder; 7. U-shaped lifting plate; 8. Support frame; 9. Material tray; 91. Collection trough. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Please refer to the following: Figures 1 to 7 A dual-mold press-fitting mechanism is described, which mainly consists of a frame 1. A positioning clamping device 2 is carefully installed on the top of the frame 1; its main function is to clamp and fix the seat frame. Notably, a riveting mechanism 3 is also installed on the top of the frame 1 on both sides of the positioning clamping device 2.
[0026] Specifically, the riveting mechanism 3 is ingeniously designed. It includes a riveting cylinder 31 fixed to the frame 1, and a mounting bracket 32 securely mounted on the output end of the riveting cylinder 31. A switching cylinder 33 is fixed to this mounting bracket 32, and its output end is connected to a slide plate 34. At least two mounting seats 35 are fixed to one side of this slide plate 34, each containing a riveting joint 36 for riveting operations.
[0027] To facilitate the installation and removal of the rivet joint 36, we have specially designed a mounting groove 351 on the mounting base 35. The end of the rivet joint 36 can be directly installed in the mounting groove 351. This design allows the rivet joint 36 to be easily installed in place under the action of gravity.
[0028] In addition, to allow the mounting bracket 32 and the slide plate 34 to move more smoothly, we fixed an X-axis guide rail 4 to the top of the frame 1, and the mounting bracket 32 is slidably connected to this guide rail. On the mounting bracket 32, we also fixed a Z-axis guide rail 5, and the slide plate 34 is slidably connected to the Z-axis guide rail 5.
[0029] Next, let's look at the positioning and clamping device 2. It includes a fixed base 21 fixed to the top of the frame 1. Support seats 22 are symmetrically installed inside the fixed base 21. The support seats 22 are available in various models to suit different seat frames. The top of the support seats 22 has a positioning groove 23. On the fixed base 21, a clamping cylinder 24 and two V-shaped clamping plates 25 are hinged. One end of each V-shaped clamping plate 25 is fixedly connected together by a connecting rod 26. The end of the V-shaped clamping plate 25 furthest from the connecting rod 26 faces the positioning groove 23, while the piston rod end of the clamping cylinder 24 is hinged to the connecting rod 26.
[0030] To further enhance the practicality of the mechanism, we fixed a lifting cylinder 6 at the bottom of the fixed base 21. The output end of the lifting cylinder 6 is connected to a U-shaped lifting plate 7. This U-shaped lifting plate 7 is in the same plane as the positioning groove 23. The lifting cylinder 6 combined with the U-shaped lifting plate 7 makes it easier to lift the seat frame.
[0031] In addition, a support frame 8 for supporting the seat frame is installed on the frame 1. The seat frame can be installed on the support frame 8 and the positioning groove 23, and then fixed in the positioning groove 23 by the clamping cylinder 24 in conjunction with the V-shaped clamp 25. Next, the riveting cylinder 31 will drive the mounting bracket 32 and the riveting head 36 to perform a precise riveting operation on the seat frame.
[0032] It is worth mentioning that we can also switch the cylinder 33 to drive the slide plate 34 and the rivet head 36 to move up and down, so that we can select different models of rivet heads 36 to participate in the riveting work as needed.
[0033] To facilitate the storage and management of the rivet joints 36, a material tray 9 is fixed to the top of the frame 1. The top of the material tray 9 is equipped with a collection groove 91 specifically for accommodating the ends of the rivet joints 36. This design is both practical and thoughtful, greatly improving work efficiency and ease of operation.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A dual-mold press-fitting mechanism, characterized in that, The system includes a frame (1), on the top of which is a positioning clamping device (2) for clamping and fixing a seat frame. On both sides of the top of the frame (1) are riveting mechanisms (3). The riveting mechanism (3) includes a riveting cylinder (31) fixed on the frame (1) and a mounting bracket (32) installed on the output end of the riveting cylinder (31). A switching cylinder (33) is fixed on the mounting bracket (32). A slide plate (34) is fixed on the output end of the switching cylinder (33). At least two mounting seats (35) are fixed on one side of the slide plate (34). A rivet head (36) is installed in the mounting seat (35).
2. The dual-mold pressing mechanism according to claim 1, characterized in that, The mounting base (35) is provided with a mounting groove (351), and the end of the rivet joint (36) is installed in the mounting groove (351).
3. The dual-mold pressing mechanism according to claim 1, characterized in that, The top of the frame (1) is fixed with an X-axis guide rail (4), the mounting bracket (32) is slidably connected to the X-axis guide rail (4), the mounting bracket (32) is fixed with a Z-axis guide rail (5), and the slide plate (34) is slidably connected to the Z-axis guide rail (5).
4. The dual-mold pressing mechanism according to claim 3, characterized in that, The positioning and clamping device (2) includes a fixed base (21) fixed on the top of the frame (1). A support base (22) is symmetrically installed in the fixed base (21). The top of the support base (22) is provided with a positioning groove (23). A clamping cylinder (24) and two V-shaped clamping plates (25) are hinged on the fixed base (21). One end of the two V-shaped clamping plates (25) is fixedly connected by a connecting rod (26). The end of the V-shaped clamping plate (25) away from the connecting rod (26) is set opposite to the positioning groove (23). The piston rod end of the clamping cylinder (24) is hinged to the connecting rod (26).
5. A dual-mold pressing mechanism according to claim 4, characterized in that, The bottom of the fixed base (21) is fixed with a lifting cylinder (6), and the output end of the lifting cylinder (6) is fixed with a U-shaped lifting plate (7), and the U-shaped lifting plate (7) and the positioning groove (23) are in the same plane.
6. The dual-mold pressing mechanism according to claim 4, characterized in that, The frame (1) is equipped with a support frame (8) for supporting the seat frame.
7. A dual-mold press-fitting mechanism according to claim 4, characterized in that, The top of the frame (1) is fixed with a material tray (9), and the top of the material tray (9) is provided with a collection groove (91) for accommodating the end of the rivet (36).