Modular two-part hot riveting tool

Abstract

This utility model relates to the field of hot riveting tooling technology, and discloses a modular two-part hot riveting tooling, including an upper mold base. Multiple support columns are fixedly connected to the top of the upper mold base. A longitudinal beam is fixedly connected to the top of each support column. A concave plate is fixedly connected to the front side of the longitudinal beam. A base bearing plate is slidably connected to the top of the longitudinal beam. Multiple square grooves are formed on the top of the outer wall of the base bearing plate. A rotating shaft is rotatably connected to the inner wall of the concave plate. Multiple L-shaped plates are fixedly connected to the outer wall of the rotating shaft. A protective mechanism is fixedly connected to the bottom of the upper mold base for protecting the components. In this utility model, the longitudinal beam is first attached to the bottom of the base bearing plate, thereby achieving the beneficial effect of modularizing the upper mold part of the hot riveting tooling, reducing weight, improving mold flatness, and enhancing practicality.

Description

Technical Field

[0001] This utility model relates to the field of hot riveting fixture technology, and in particular to a modular two-part hot riveting fixture. Background Technology

[0002] The field of hot riveting tooling technology relies on hot riveting technology as its core technology. This process uses a precision heating system to heat metal rivets to a specific plastic temperature range, softening the internal crystalline structure of the material and making it ductile. Once the rivet reaches the ideal hot state, it is precisely inserted into a pre-machined hole in the connector using an automated mechanical device. At this point, the rivet head is tightly fitted to the surface of the connector. Subsequently, a pressure application system using specialized tooling applies controllable axial pressure to the tail of the rivet. Simultaneously, through the constraint of the mold cavity, the rivet undergoes a combined deformation of radial expansion and axial compression under the dual effects of residual heat and external pressure, ultimately forming a stable structure with an enlarged head and a locked tail, achieving a firm mechanical engagement between the connectors.

[0003] A search revealed Chinese Patent Publication No. CN216575379U, which discloses a hot riveting fixture relating to the field of riveting. The fixture includes a base, on which a hot riveting assembly is mounted. A pressing assembly is positioned above the hot riveting assembly and is fixedly connected to the base via a fixing bracket. The pressing assembly is also fixedly connected to the hot riveting assembly. A product placement assembly is positioned below the hot riveting assembly on the base. The hot riveting assembly includes a heating and heat storage template. A hot riveting head is fixedly connected to the lower end face of the heating and heat storage template. An anti-scalding protection plate is positioned on the outer side of the hot riveting head, through which the hot riveting head passes. The anti-scalding protection plate is fixedly connected to the pressing assembly. A control assembly is positioned on the base. The cylinder time controller in this utility model is used to control the cylinder pressing time, and the heating module temperature controller is used to control the temperature rise of the hot riveting assembly. The hot riveting time and temperature of this hot riveting fixture can be controlled, resulting in good consistency of the hot riveted products. However, most existing hot riveting fixtures use an integrated upper mold, which cannot be disassembled into an independent module, resulting in heavy molds, high processing costs, poor flatness of the entire plate, and reduced practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a modular two-part hot riveting fixture, which aims to improve the problems of existing technology, such as the upper mold not being able to be disassembled into an independent module, heavy mold, high processing cost, and poor flatness of the whole plate.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a modular two-part hot riveting fixture, including an upper mold base, a plurality of support columns fixedly connected to the top of the upper mold base, a longitudinal beam fixedly connected to the top of the support columns, a concave plate fixedly connected to the front side of the longitudinal beam, a base bearing plate slidably connected to the top of the longitudinal beam, a plurality of square grooves opened on the top of the outer wall of the base bearing plate, a rotating shaft rotatably connected to the inner wall of the concave plate, a plurality of L-shaped plates fixedly connected to the outer wall of the rotating shaft, a second spring column slidably connected to the rear side of the inner wall of the L-shaped plate, a fixed column fixedly connected to the right end of the second spring column, a fixed sleeve slidably connected to the right end of the outer wall of the fixed column, a pin slidably connected to the inner wall of the fixed sleeve, a third spring column fixedly connected to the right end of the fixed sleeve, and a protective mechanism fixedly connected to the bottom of the upper mold base, the protective mechanism being used to protect the components.

[0006] As a further description of the above technical solution:

[0007] The protective mechanism includes a reference column, with multiple sliding plates fixedly connected to the outer wall of the reference column. A locking block is fixedly connected to the bottom of the sliding plate. A column head is fixedly connected to the bottom end of the reference column. A protective sleeve is slidably connected to the middle of the outer wall of the reference column. Multiple locking grooves are opened on the inner wall of the protective sleeve. A sliding groove is slidably connected to the inner wall of the locking groove. Multiple spring columns are fixedly connected to the top of the protective sleeve.

[0008] As a further description of the above technical solution:

[0009] A movable rod is fixedly connected to the top of the outer wall of the rotating shaft, and an anti-slip sleeve is fixedly connected to the top of the outer wall of the movable rod.

[0010] As a further description of the above technical solution:

[0011] Limiting plates are fixedly connected to both the left and right ends of the rotating shaft, and a side plate is fixedly connected to the left side of the longitudinal beam.

[0012] As a further description of the above technical solution:

[0013] A handle is fixedly connected to the front side of the upper mold base, and guide posts are fixedly connected to both the front and rear sides of the bottom of the upper mold base.

[0014] As a further description of the above technical solution:

[0015] A heating head is fixedly connected to the bottom left side of the upper mold base, and an extrusion head is fixedly connected to the bottom right side of the upper mold base.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the upper mold base is provided with multiple heat dissipation holes, and the inner wall of the square groove is fixedly connected to the left end of the second spring column.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the sliding plate is slidably connected to the inner wall of the sliding groove, and the middle part of the inner wall of the slot is slidably connected to the outer wall of the card block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the longitudinal beam is first attached to the bottom of the base bearing plate, and the rotating shaft is rotated so that the fixing column slides into the inner wall of the fixing sleeve. Then, the pin is inserted into the inner wall of both the fixing column and the fixing sleeve at the same time, thereby fixing the upper mold base to the bottom of the base bearing plate. Multiple upper mold bases can be fixed to the bottom of the base bearing plate, which has the beneficial effect of modularizing the upper mold part in the hot riveting tooling, reducing weight, reducing processing costs, improving mold flatness, and improving practicality.

[0022] 2. In this utility model, when the hot riveting fixture is not in working state, the protective sleeve will be placed on the outside of the column head due to the action of the spring column to protect the column head. When the fixture is working, the lower mold base squeezes the protective sleeve, causing the protective sleeve to move upward, thereby achieving the beneficial effect of protecting the positioning column. It is linked with the action of the fixture, requiring no additional operation, improving protection efficiency and increasing practicality. Attached Figure Description

[0023] Figure 1 A perspective view of the front side of the upper mold base of a modular two-part hot riveting fixture proposed in this utility model.

[0024] Figure 2 This is a partial structural diagram of an L-shaped plate of a modular two-part hot riveting fixture proposed in this utility model.

[0025] Figure 3 This is a partial structural diagram of the spring column of a modular two-part hot riveting fixture proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the reference column of a modular two-part hot riveting fixture proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of the protective sleeve of a modular two-part hot riveting fixture proposed in this utility model.

[0028] Legend:

[0029] 1. Upper mold base; 2. Protective mechanism; 201. Reference column; 202. Sliding plate; 203. Locking block; 204. Column head; 205. Protective sleeve; 206. Spring column one; 207. Slide groove; 208. Locking groove; 3. Support column; 4. Longitudinal beam; 5. Concave plate; 6. Square groove; 7. Foundation bearing plate; 8. Rotating shaft; 9. L-shaped plate; 10. Heat dissipation hole; 11. Spring column two; 12. Fixed column; 13. Fixed sleeve; 14. Pin; 15. Spring column three; 16. Moving rod; 17. Anti-slip sleeve; 18. Limiting plate; 19. Handle; 20. Guide column; 21. Heating head; 22. Extrusion head; 23. Side plate. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides a modular two-part hot riveting fixture, including an upper mold base 1. Multiple support columns 3 are fixedly connected to the top of the upper mold base 1. A longitudinal beam 4 is fixedly connected to the top of the support columns 3. A concave plate 5 is fixedly connected to the front side of the longitudinal beam 4. A base bearing plate 7 is slidably connected to the top of the longitudinal beam 4. Multiple square grooves 6 are opened on the top of the outer wall of the base bearing plate 7. A rotating shaft 8 is rotatably connected to the inner wall of the concave plate 5. Multiple L-shaped plates 9 are fixedly connected to the outer wall of the rotating shaft 8. A spring column 11 is slidably connected to the rear side of the inner wall of the L-shaped plate 9. A fixing column 12 is fixedly connected to the right end of the spring column 11. A fixing sleeve 13 is slidably connected to the right end of the outer wall of the fixing column 12. A pin 14 is slidably connected to the inner wall of the fixing sleeve 13. A spring column 15 is fixedly connected to the right end of the fixing sleeve 13. A protective mechanism 2 is fixedly connected to the bottom of the upper mold base 1. The protective mechanism 2 is used to protect the components.

[0032] Specifically, the upper mold base 1, as the foundation of the entire tooling, has multiple support columns 3 fixedly connected to its top. These support columns 3 are evenly distributed on the top of the upper mold base 1, providing stable support for the longitudinal beam 4 above. The top of the support columns 3 is fixedly connected to the longitudinal beam 4, which plays a connecting and load-bearing role in the entire tooling. A concave plate 5 is fixedly connected to its front side, and a base bearing plate 7 is slidably connected to the top of the longitudinal beam 4. This sliding connection allows the base bearing plate 7 to move and adjust flexibly on the longitudinal beam 4. Multiple openings are made on the top of the outer wall of the base bearing plate 7. A square groove 6, a concave plate 5 has a rotating shaft 8 rotatably connected to its inner wall, a plurality of L-shaped plates 9 are fixedly connected to the outer wall of the rotating shaft 8, a spring post 11 is slidably connected to the rear side of the inner wall of the L-shaped plate 9, the spring post 11 has a certain elasticity and can extend and retract when subjected to external force, a fixing post 12 is fixedly connected to the right end of the spring post 11, a fixing sleeve 13 is slidably connected to the right end of the outer wall of the fixing post 12, a pin 14 is slidably connected to the inner wall of the fixing sleeve 13, the pin 14 is used to fix the relative position of the fixing post 12 and the fixing sleeve 13, and a spring post 15 is fixedly connected to the right end of the fixing sleeve 13.

[0033] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 The protective mechanism 2 includes a reference column 201, a plurality of sliding plates 202 are fixedly connected to the outer wall of the reference column 201, a locking block 203 is fixedly connected to the bottom of the sliding plate 202, a column head 204 is fixedly connected to the bottom end of the reference column 201, a protective sleeve 205 is slidably connected to the middle of the outer wall of the reference column 201, a plurality of locking grooves 208 are opened on the inner wall of the protective sleeve 205, a sliding groove 207 is slidably connected to the inner wall of the locking groove 208, and a plurality of spring columns 206 are fixedly connected to the top of the protective sleeve 205.

[0034] Specifically, the reference column 201, as the core component of the protective mechanism 2, has multiple sliding plates 202 fixedly connected to its outer wall. The sliding plates 202 provide guidance and support for the relative sliding of the reference column 201 with other components. Each sliding plate 202 has a locking block 203 fixedly connected to its bottom, which engages with a slot 208 on the inner wall of the protective sleeve 205. A column head 204 is fixedly connected to the bottom of the reference column 201. The protective sleeve 205 is slidably connected to the middle of the outer wall of the reference column 201, protecting both the reference column 201 and the column head 204. Its inner wall has multiple slots 208, which correspond to the locking blocks 203 at the bottom of the sliding plates 202, guiding the protective sleeve 205 within the reference column 201. The protective sleeve 205 slides along a specific trajectory. At the same time, the inner wall of the slot 208 is also slidably connected with a groove 207. The groove 207 further reduces the friction when the protective sleeve 205 slides, making the sliding process smoother. Multiple spring posts 206 are fixedly connected to the top of the protective sleeve 205. These spring posts 206 are evenly distributed around the top of the protective sleeve 205. Their main function is to provide elasticity to the protective sleeve 205 when the tooling is not working, so that the protective sleeve 205 can automatically cover the outside of the column head 204 to protect the column head 204 from pollution and damage from the external environment. At the same time, when the tooling is working, the spring posts 206 can be compressed to play a buffering role and reduce the impact force on the protective sleeve 205 and the reference column 201.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A movable rod 16 is fixedly connected to the top of the outer wall of the rotating shaft 8. An anti-slip sleeve 17 is fixedly connected to the top of the outer wall of the movable rod 16. Limit plates 18 are fixedly connected to both the left and right ends of the rotating shaft 8. A side plate 23 is fixedly connected to the left side of the longitudinal beam 4. A handle 19 is fixedly connected to the front side of the upper mold base 1. Guide columns 20 are fixedly connected to both the front and rear sides of the bottom of the upper mold base 1.

[0036] Specifically, the moving rod 16 is used to rotate the rotating shaft 8, the anti-slip sleeve 17 plays an anti-slip role, the limiting plate 18 is used to limit the position of the rotating shaft 8, the side plate 23 enhances stability, the handle 19 is used to move the upper mold base 1, and the guide post 20 plays a guiding role.

[0037] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5A heating head 21 is fixedly connected to the bottom left side of the upper mold base 1, and an extrusion head 22 is fixedly connected to the bottom right side of the upper mold base 1. Multiple heat dissipation holes 10 are opened on the inner wall of the upper mold base 1. The inner wall of the square groove 6 is fixedly connected to the left end of the spring column 21. The outer wall of the sliding plate 202 is slidably connected to the inner wall of the sliding groove 207. The middle part of the inner wall of the slot 208 is slidably connected to the outer wall of the block 203.

[0038] Specifically, the heating head 21 is used to heat the rivet, the pressing head 22 is used to press the rivet, the heat dissipation hole 10 serves to dissipate heat, the square groove 6 provides support for the spring column 11, the sliding plate 202 can slide in the sliding groove 207, and the locking block 203 can slide in the locking groove 208.

[0039] Working principle: First, the longitudinal beam 4 is attached to the bottom of the base bearing plate 7, so that the concave plate 5 is aligned with the square groove 6. The rotating shaft 8 is rotated, and the rotating shaft 8 drives the L-shaped plate 9 to rotate. The L-shaped plate 9 enters the square groove 6, so that the second spring column 11 slides into the inner wall of the left L-shaped plate 9 and the third spring column 15 slides into the inner wall of the right L-shaped plate 9, so that the fixed column 12 slides into the inner wall of the fixed sleeve 13. Then, the pin 14 is inserted into the inner walls of the fixed column 12 and the fixed sleeve 13 at the same time, so that the fixed column 12 and the fixed sleeve 13 are fixed together, thereby fixing the upper mold base 1 to the bottom of the base bearing plate 7. Multiple upper mold bases 1 can be fixed at the bottom of the base bearing plate 7, thus playing a modular role in the upper mold part of the hot riveting tooling, reducing weight, reducing processing costs, improving mold flatness, and improving practicality.

[0040] When the hot riveting fixture is not in operation, the protective sleeve 205 is fitted over the outside of the column head 204 due to the action of the spring column 206, and the locking block 203 is locked in the slot 208, preventing the protective sleeve 205 from falling off and protecting the column head 204. When the fixture is working, the reference column 201 moves downward and passes through the corresponding hole in the lower mold base. The lower mold base squeezes the protective sleeve 205, compressing the spring column 206 and causing the protective sleeve 205 to move upward. The sliding plate 202 slides in the slide groove 207, and the locking block 203 slides in the slot 208, thus protecting the positioning column. It is linked with the fixture's movement, requiring no additional operation, improving protection efficiency and practicality.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular two-part hot riveting fixture, comprising an upper mold base (1), characterized in that: The top of the upper mold base (1) is fixedly connected to multiple support columns (3), the top of the support columns (3) is fixedly connected to a longitudinal beam (4), the front side of the longitudinal beam (4) is fixedly connected to a concave plate (5), the top of the longitudinal beam (4) is slidably connected to a base bearing plate (7), the top of the outer wall of the base bearing plate (7) is provided with multiple square grooves (6), the inner wall of the concave plate (5) is rotatably connected to a rotating shaft (8), and the outer wall of the rotating shaft (8) is fixedly connected to multiple L-shaped plates (9). The inner wall of the L-shaped plate (9) is slidably connected to a second spring column (11), and the right end of the second spring column (11) is fixedly connected to a fixed column (12). The right end of the outer wall of the fixed column (12) is slidably connected to a fixed sleeve (13), and the inner wall of the fixed sleeve (13) is slidably connected to a pin (14). The right end of the fixed sleeve (13) is fixedly connected to a third spring column (15). The bottom of the upper mold base (1) is fixedly connected to a protective mechanism (2), which is used to protect the component.

2. The modular two-part hot riveting fixture according to claim 1, characterized in that: The protective mechanism (2) includes a reference column (201), a plurality of sliding plates (202) are fixedly connected to the outer wall of the reference column (201), a locking block (203) is fixedly connected to the bottom of the sliding plate (202), a column head (204) is fixedly connected to the bottom end of the reference column (201), a protective sleeve (205) is slidably connected to the middle of the outer wall of the reference column (201), a plurality of locking grooves (208) are opened on the inner wall of the protective sleeve (205), a sliding groove (207) is slidably connected to the inner wall of the locking groove (208), and a plurality of spring columns (206) are fixedly connected to the top of the protective sleeve (205).

3. The modular two-part hot riveting fixture according to claim 1, characterized in that: A movable rod (16) is fixedly connected to the top of the outer wall of the rotating shaft (8), and an anti-slip sleeve (17) is fixedly connected to the top of the outer wall of the movable rod (16).

4. The modular two-part hot riveting fixture according to claim 1, characterized in that: Limiting plates (18) are fixedly connected to both the left and right ends of the rotating shaft (8), and a side plate (23) is fixedly connected to the left side of the longitudinal beam (4).

5. A modular two-part hot riveting fixture according to claim 1, characterized in that: A handle (19) is fixedly connected to the front side of the upper mold base (1), and guide posts (20) are fixedly connected to the front and rear sides of the bottom of the upper mold base (1).

6. A modular two-part hot riveting fixture according to claim 1, characterized in that: A heating head (21) is fixedly connected to the bottom left side of the upper mold base (1), and an extrusion head (22) is fixedly connected to the bottom right side of the upper mold base (1).

7. A modular two-part hot riveting fixture according to claim 1, characterized in that: The inner wall of the upper mold base (1) is provided with multiple heat dissipation holes (10), and the inner wall of the square groove (6) is fixedly connected to the left end of the spring column (11).

8. A modular two-part hot riveting fixture according to claim 2, characterized in that: The outer wall of the sliding plate (202) is slidably connected to the inner wall of the sliding groove (207), and the middle part of the inner wall of the slot (208) is slidably connected to the outer wall of the block (203).

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