Cup body riveting device of temperature limiter

Abstract

The cup body riveting device of the temperature limiter comprises a positioning plate fixed to a workbench, a fixing block is arranged at the top of the positioning plate, a storage plate and a plurality of clamping blocks are arranged above the fixing block, the clamping blocks are circumferentially distributed around the storage plate at equal intervals, and a first spring is arranged between the storage plate and the fixing block; a second spring is arranged between the clamping block and the fixing block, a pressing plate is placed at the top of the clamping block, an annular boss is arranged at the bottom of the pressing plate, a clamping head is arranged on the side, close to the storage plate, of the clamping block, the side, away from the storage plate, of the top of the clamping block is of an arc-shaped structure matched with the boss, and a through hole aligned to the storage plate is formed in the pressing plate; a driving mechanism for driving the pressing plate to press downwards is arranged on the positioning plate; during production, the pressing plate is driven by the driving mechanism to press downwards, the chuck can push the turned edge of the temperature sensing cover to bend inwards, riveting operation of the cup body and the temperature sensing cover is completed, the accident that hands are injured by pressing is eradicated, and production safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermostat production, and particularly relates to a cup riveting device for a thermostat. Background Art

[0002] At present, the rice cooker thermostats on the market include a cup body and a temperature sensing cover. During production, generally, the flanging of the temperature sensing cover needs to be riveted on the opening of the cup body. The existing production process is to rivet the temperature sensing cover on the opening of the cup body by means of punching on a punching press. Workers need to manually place the pre-assembled temperature sensing cover and cup body at the punching position of the punching press, and then trigger the punching press to punch by jogging. In this assembly method, after working for a long time, it is inevitable that workers' attention will be distracted, which is likely to cause the punching press to be triggered by jogging before the worker withdraws their hand after placing the material, resulting in an accident of the punch injuring the hand, and the production safety is low. Summary of the Invention

[0003] The purpose of the present invention is to design a cup riveting device for a thermostat, which can solve the problems mentioned in the background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A cup riveting device for a thermostat, including a positioning plate fixed on a workbench. A fixing block is provided on the top of the positioning plate. Above the fixing block, there are a placing plate and clamping blocks. There are several clamping blocks, which are evenly distributed in a circumferential manner around the placing plate. A first spring is provided between the placing plate and the fixing block, and a second spring is provided between the clamping block and the fixing block. A pressing plate is placed on the top of the clamping block. A circular convex platform is provided at the bottom of the pressing plate. A clamping head is provided on one side of the clamping block close to the placing plate. The side of the clamping block away from the placing plate at the top is an arc-shaped structure that cooperates with the convex platform. A through hole for aligning with the placing plate is provided on the pressing plate, and a driving mechanism for driving the pressing plate to press down is provided on the positioning plate.

[0006] Further, a sliding groove is provided on the top of the fixing block. A sliding rod that is slidably matched with the sliding groove is fixedly connected to the bottom of the placing plate. The first spring is sleeved outside the sliding rod.

[0007] Further, a protective shell that wraps the fixing block is provided on the top of the fixing block. The protective shell is connected to the positioning plate by screws.

[0008] Furthermore, a surrounding plate is fixedly connected to the four circumferences at the bottom of the pressing plate. The inner wall of the surrounding plate is in clearance fit with the outer wall of the protective shell.

[0009] Further, the driving mechanism includes a cylinder which is located below the positioning plate. The piston rod of the cylinder is aligned with the bottom of the positioning plate. A limiting groove is provided at the top of the pressing plate, and a first through hole communicating with the bottom of the limiting groove is provided on the pressing plate. A limiting block is arranged inside the limiting groove, and a guiding rod is fixedly connected to the bottom of the limiting block. The end of the guiding rod away from the limiting block passes through the first through hole and is fixedly connected to the cylinder block of the cylinder.

[0010] Furthermore, a second through hole for the guiding rod to pass through is provided on the protective shell, and a third through hole for the guiding rod to pass through is provided on the positioning plate.

[0011] Further, a threaded hole is provided at the top of the cylinder block. The end of the guiding rod away from the limiting block is provided with an external thread that matches the threaded hole, and a cross screwdriver slot that matches a screwdriver is provided at the top of the limiting block.

[0012] Further, four clamping blocks are provided, and a gap is left between two adjacent clamping blocks.

[0013] Further, a baffle is fixedly connected to the edge of the top of the placing plate.

[0014] The beneficial effects of the present invention are as follows:

[0015] During production, workers place the pre-assembled temperature-sensitive cover and cup body on the top of the placing plate. Then, with one hand, the cup body is pressed downwards from top to bottom. The placing plate will descend to a suitable position and then stop. Then, the driving mechanism is triggered by pressing. The driving mechanism will drive the pressing plate to press down. While the convex platform on the pressing plate pushes the clamping block down, the convex platform will slide on the arc-shaped structure of the clamping block, thereby pushing the clamping head of the clamping block to move towards the temperature-sensitive cover. The clamping head will push the flanging of the temperature-sensitive cover to bend inwards, completing the riveting operation of the cup body and the temperature-sensitive cover, eliminating the accident of hand injury, and improving production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 is an exploded view of the present invention;

[0020] Figure 4 This is a schematic structural diagram of the storage plate and the clamping block in the present invention;

[0021] Figure 5 This is a schematic structural diagram of the pressing plate in the present invention;

[0022] Figure 6 This is a schematic structural diagram of riveting the temperature-sensitive cover on the opening of the cup body in the present invention.

[0023] The names of the components marked in the figure are as follows:

[0024] 1. positioning plate; 2. fixing block; 3. storage plate; 4. clamping block; 5. first spring; 6. second spring; 7. pressing plate; 8. boss; 9. chuck; 10. through hole; 11. sliding groove; 12. sliding rod; 13. protective shell; 14. screw; 15. surrounding plate; 16. piston rod; 17. limiting groove; 18. first through hole; 19. limiting block; 20. guiding rod; 21. cylinder block; 22. second through hole; 23. third through hole; 24. threaded hole; 25. external thread; 26. cross cutter groove; 27. baffle; 28. cup body; 29. temperature-sensitive cover. Detailed implementation manners

[0025] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0026] As Figure 1-6As shown in the figure, a cup body riveting device for a temperature limiter includes a positioning plate 1 fixed on a workbench, that is, a positioning hole for fixing the positioning plate 1 is dug on the surface of the workbench; a fixing block 2 is fixedly connected to the top of the positioning plate 1, and a placing plate 3 and a clamping block 4 are arranged above the fixing block 2. A baffle 27 is fixedly connected to the edge of the top of the placing plate 3 for limiting the temperature sensing cover 29; there are four clamping blocks 4 and they are evenly distributed in a circumferential manner around the placing plate 3. A first spring 5 is fixedly connected between the placing plate 3 and the fixing block 2, so that after the external force acting on the placing plate 3 disappears, the placing plate 3 can return to its initial position; a second spring 6 is fixedly connected between the clamping block 4 and the fixing block 2, so that after the external force acting on the clamping block 4 disappears, the clamping block 4 can return to its initial position; a pressing plate 7 is placed on the top of the clamping block 4, a circular convex platform 8 is arranged at the bottom of the pressing plate 7, and a clamping head 9 is arranged on one side of the clamping block 4 close to the placing plate 3 for pushing the flanging of the temperature sensing cover 29 to bend inward; the side of the clamping block 4 away from the placing plate 3 at the top is an arc structure matched with the convex platform 8. When the convex platform 8 presses down, while the convex platform 8 pushes the clamping block 4 to press down, the convex platform 8 will slide on the arc structure of the clamping block 4, and then push the clamping head 9 to move towards the temperature sensing cover 29; a gap is left between two adjacent clamping blocks 4, and a through hole 10 aligned with the placing plate 3 is arranged on the pressing plate 7, which is convenient for placing the temperature sensing cover 29 and the cup body 28 on the placing plate 3; a driving mechanism for driving the pressing plate 7 to press down is arranged on the positioning plate 1.

[0027] A sliding groove 11 is arranged at the top of the fixing block 2, and a sliding rod 12 slidably matched with the sliding groove 11 is fixedly connected to the bottom of the placing plate 3, which restricts the moving direction of the placing plate 3, so that the placing plate 3 can only move up and down, improving the riveting quality of the temperature sensing cover 29 and the cup body 28 in the subsequent process; the first spring 5 is sleeved outside the sliding rod 12, and a protective shell 13 covering the fixing block 2 is arranged at the top of the fixing block 2, which plays a role in protecting the components; the protective shell 13 is connected to the positioning plate 1 by screws 14, which is convenient for disassembly to maintain the components; a surrounding plate 15 is fixedly connected to the four weeks of the bottom of the pressing plate 7, and the inner wall of the surrounding plate 15 is in clearance fit with the outer wall of the protective shell 13.

[0028] The driving mechanism includes a cylinder. The cylinder is located below the positioning plate 1. The piston rod 16 of the cylinder is aligned with the bottom of the positioning plate 1. A limiting groove 17 is provided at the top of the pressing plate 7. A first through hole 18 communicating with the bottom of the limiting groove 17 is provided on the pressing plate 7. A limiting block 19 is arranged inside the limiting groove 17. A guiding rod 20 is fixedly connected to the bottom of the limiting block 19. A threaded hole 24 is provided at the top of the cylinder block 21 of the cylinder. One end of the guiding rod 20 away from the limiting block 19 passes through the first through hole 18 and is provided with an external thread 25 matching the threaded hole 24. When the piston rod 16 of the cylinder extends, since the positioning plate 1 is fixed, after the piston rod 16 abuts against the bottom of the positioning plate 1, it will push the cylinder block 21 in the direction away from the positioning plate 1 in reverse. The cylinder block 21 will drive the pressing plate 7 to press down through the guiding rod 20. A cross screwdriver slot 26 matching a screwdriver is provided at the top of the limiting block 19, which is convenient for disassembling the guiding rod 20 with a screwdriver. A second through hole 22 for the guiding rod 20 to pass through is provided on the protective shell 13. A third through hole 23 for the guiding rod 20 to pass through is provided on the positioning plate 1.

[0029] Working principle:

[0030] As Figure 2 and 6 shown, when the cup riveting device is in use, the worker places the pre-assembled temperature sensing cover 29 and the cup body 28 on the top of the placing plate 3 from bottom to top respectively. Then, one hand presses the cup body 28 from top to bottom. The placing plate 3 will descend to a suitable position and stop. Then, the trigger cylinder is actuated by a single point. The piston rod 16 of the cylinder extends. Since the positioning plate 1 is fixed, after the piston rod 16 abuts against the bottom of the positioning plate 1, it will push the cylinder block 21 in the direction away from the positioning plate 1 in reverse. The cylinder block 21 will drive the pressing plate 7 to press down through the guiding rod 20. While the boss 8 on the pressing plate 7 pushes the clamping block 4 to press down, the boss 8 will slide on the arc-shaped structure of the clamping block 4, and then push the chuck 9 in the direction close to the temperature sensing cover 29. The chuck 9 will contact the flange of the temperature sensing cover 29 and push the flange of the temperature sensing cover 29 to bend inward, completing the riveting operation of the cup body 28 and the temperature sensing cover 29, preventing the occurrence of hand injury accidents and improving production safety.

[0031] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to make equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cup riveting device for a temperature limiter, characterized in that: The invention comprises a positioning plate (1) fixed on a workbench, a fixing block (2) is provided on the top of the positioning plate (1), a placing plate (3) and a clamping block (4) are provided above the fixing block (2), the clamping block (4) is provided with a plurality of springs which are equidistantly distributed around the placing plate (3), a first spring (5) is provided between the placing plate (3) and the fixing block (2), a second spring (6) is provided between the clamping block (4) and the fixing block (2), a pressing plate (7) is placed on the top of the clamping block (4), a circular annular boss (8) is provided on the bottom of the pressing plate (7), a clamping head (9) is provided on the side of the clamping block (4) close to the placing plate (3), a side of the top of the clamping block (4) away from the placing plate (3) is an arc structure matched with the boss (8), a through hole (10) is provided on the pressing plate (7) which is aligned with the placing plate (3), and a driving mechanism for driving the pressing plate (7) to press downward is provided on the positioning plate (1).

2. The cup body riveting device of the temperature limiter according to claim 1, characterized in that: A slide groove (11) is provided on the top of the fixed block (2), a slide rod (12) slidably matched with the slide groove (11) is fixedly connected to the bottom of the storage plate (3), and the first spring (5) is sleeved on the outside of the slide rod (12).

3. The cup body riveting device of the temperature limiter according to claim 1, characterized in that: A protective shell (13) is provided on the top of the fixing block (2) to wrap the fixing block (2), and the protective shell (13) is connected to the positioning plate (1) via screws (14).

4. The cup body riveting device of the temperature limiter according to claim 3, characterized in that: The bottom of the pressing plate (7) is fixedly connected with a surrounding plate (15) around its periphery, and the inner wall of the surrounding plate (15) is gap-matched with the outer wall of the protective shell (13).

5. The cup body riveting device of the temperature limiter according to claim 3, characterized in that: The driving mechanism comprises a cylinder, which is located below the positioning plate (1). The piston rod (16) of the cylinder is aligned with the bottom of the positioning plate (1). A limiting groove (17) is provided on the top of the pressure plate (7). A first through hole (18) which is connected to the bottom of the limiting groove (17) is provided on the pressure plate (7). A limiting block (19) is provided inside the limiting groove (17). A guide rod (20) is fixedly connected to the bottom of the limiting block (19). One end of the guide rod (20) away from the limiting block (19) passes through the first through hole (18) and is fixedly connected to a cylinder body (21) of the cylinder.

6. The cup body riveting device of the temperature limiter according to claim 5, characterized in that: The protective shell (13) is provided with a second through hole (22) for the guide rod (20) to pass through, and the positioning plate (1) is provided with a third through hole (23) for the guide rod (20) to pass through.

7. The cup body riveting device of the temperature limiter according to claim 5, characterized in that: A threaded hole (24) is provided on the top of the cylinder body (21), an end of the guide rod (20) away from the limit block (19) is provided with an external thread (25) matched with the threaded hole (24), and a cross knife groove (26) matched with a screwdriver is provided on the top of the limit block (19).

8. The cup body riveting device of the temperature limiter according to claim 1, characterized in that: Four clamping blocks (4) are provided, and a gap is left between two adjacent clamping blocks (4).

9. The cup body riveting device of the temperature limiter according to claim 1, characterized in that: A baffle (27) is fixedly connected to the edge of the top of the storage plate (3).

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