Automatic hot riveting device for sheet metal and knob
By designing an automatic hot riveting device and adopting an adjustable stroke cylinder and temperature detection system, the problem of low efficiency of manual hot riveting in the assembly of automotive combination switches by small and medium-sized enterprises has been solved, realizing an efficient and safe automated hot riveting process.
Patent Information
- Application Number
- CN202522642310.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-12
AI Technical Summary
For small and medium-sized enterprises, manual hot riveting is inefficient and costly in the assembly of conductive springs and knob housings for automotive combination switches and handle switch knobs, and cannot meet the needs of automation.
Design an automatic hot riveting device with springs and knobs. It adopts an adjustable stroke cylinder pressing hot riveting structure, combined with heating rod heating and thermocouple temperature detection. The temperature is adjusted by a temperature controller to realize the automated hot riveting process.
It improves automation and work efficiency, enables controllable and safe hot riveting temperature, and reduces labor costs.
Smart Images

Figure CN224926978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automation technology, and in particular to an automatic hot riveting device for springs and knobs. Background Technology
[0002] In the automobile production process, it is necessary to assemble the conductive springs on the combination switches and handle switch knobs with the knob housings. After assembly, in order to ensure the stability of the connection between the two, they need to be hot-riveted. Currently, small and medium-sized enterprises basically use manual hot riveting, which is inefficient and has high labor costs. Therefore, it needs to be improved. Utility Model Content
[0003] The purpose of this invention is to provide an automatic hot riveting device for springs and knobs, which can realize automatic hot riveting of springs and knobs with a high degree of automation and high working efficiency. At the same time, the hot riveting structure uses an adjustable stroke cylinder for hot riveting, which can easily adjust the pressing distance according to the riveting effect. The heating seat is heated by a heating rod, and then the temperature is detected by a thermocouple. Combined with an external temperature controller, the temperature is regulated, making the hot riveting temperature controllable. To achieve the above objectives, the following technical solution is adopted: An automatic hot riveting device for springs and knobs includes a hot riveting mechanism and a turntable mechanism arranged on one side of the hot riveting mechanism. The hot riveting mechanism includes a hot riveting bracket, a hot riveting slider slidably connected to one side of the hot riveting bracket, a hot riveting mounting plate connected to one side of the hot riveting slider, and a hot riveting lifting cylinder mounted on the hot riveting bracket and connected to the hot riveting mounting plate. A hot riveting connecting plate is also connected to one side of the hot riveting mounting plate, and a heat insulation adapter plate is also connected to the bottom of the hot riveting connecting plate. A heat insulation block is connected to each end of the bottom of the heat insulation adapter plate, and a heating seat is also connected to the bottom of the two heat insulation blocks. A heating rod is also installed inside the heating seat, and a hot pressing fixing block is also connected to the top of the heating seat. A hot pressing rivet is also installed on the hot pressing fixing block, and the lower part of the hot pressing rivet extends downward from the bottom of the heating seat.
[0004] Furthermore, a linear guide rail is arranged vertically on one side of the hot riveting mounting plate, and the hot riveting connecting plate is slidably connected to the linear guide rail; a buffer connecting plate is also connected to the top of the hot riveting mounting plate, and a first equal-height screw is also installed on the buffer connecting plate; the lower part of the first equal-height screw is arranged to move through the buffer connecting plate, and the bottom of the first equal-height screw is connected to the top of the hot riveting connecting plate; a first buffer spring is also sleeved on the part of the first equal-height screw located between the bottom of the buffer connecting plate and the top of the hot riveting connecting plate.
[0005] Furthermore, a travel limit block is connected to the lower part of one side of the hot riveting mounting plate, and the linear guide rail is located above the travel limit block.
[0006] Furthermore, a thermocouple is also installed inside the heating base.
[0007] Furthermore, the turntable mechanism includes a first rotary motor, a hollow rotary platform connected to the first rotary motor, and a turntable mounted on the hollow rotary platform; a plurality of fixture seats are installed at intervals along the circumferential direction on the top edge of the turntable, and a first bearing groove is provided on the top of each fixture seat; a limit slot is also provided on part of the inner wall of the first bearing groove along the vertical direction; a turntable support assembly is also arranged at the bottom of the turntable.
[0008] Furthermore, the turntable support assembly includes a support mounting base, a support adjusting base, a support shaft, and a support wheel; the top of the support mounting base has a first mounting groove extending to both sides therethrough, and the bottom of the support mounting base is also equipped with an adjusting screw, with the upper part of the adjusting screw inserted into the first mounting groove; the support adjusting base has a U-shaped structure, and the support adjusting base is slidably arranged in the first mounting groove, with the bottom of the U-shaped horizontal end of the support adjusting base arranged at the top of the adjusting screw; the top of each of the two vertical ends of the U-shape of the support adjusting base has a first slot, and both ends of the support shaft are arranged in a first slot; a first bearing is also installed on the support shaft, and the support wheel is installed on the first bearing; a side pressure plate is also connected to each side of the support mounting base.
[0009] By adopting the above solution, the beneficial effects of this utility model are: This invention enables automatic hot riveting of springs and knobs, achieving a high degree of automation and high work efficiency. Furthermore, the hot riveting structure utilizes an adjustable stroke cylinder for downward hot riveting, allowing for easy adjustment of the pressing distance based on the riveting effect. The heating base is heated by a heating rod, and the temperature is detected by a thermocouple. Combined with an external temperature controller, the temperature is adjusted, making the hot riveting temperature controllable and improving safety. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the hot riveting mechanism of this utility model; Figure 3 This is a schematic diagram of the heating base of this utility model; Figure 4 This is a schematic diagram of the turntable mechanism of this utility model; Figure 5 This is a schematic diagram of the turntable support assembly of this utility model; The following are explanations of the labels in the attached diagram: 1. Turntable mechanism; 2. Hot riveting mechanism; 3. Turntable support assembly; 11. First rotary motor; 12. Hollow rotary platform; 13. Rotary disk; 14. Fixture seat; 15. First bearing groove; 16. Limiting slot; 21. Hot riveting bracket; 22. Hot riveting slider; 23. Hot riveting mounting plate; 24. Hot riveting lifting cylinder; 25. Hot riveting connecting plate; 26. Heat insulation adapter plate; 27. Heat insulation block; 28. Heating seat; 31. Support mounting seat; 32. Support adjusting seat; 33. Support shaft; 34. Support wheel; 35. Adjusting screw; 36. Side pressure plate; 281. Heating rod; 282. Hot pressing fixing block; 283. Hot pressing rivet; 284. Buffer connecting plate; 285. First buffer spring; 286. Stroke limit block; 287. Thermocouple. Detailed Implementation
[0011] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0012] Reference Figures 1 to 5 As shown, this utility model provides an automatic hot riveting device for springs and knobs. In one embodiment, it includes a hot riveting mechanism 2 and a turntable mechanism 1 arranged on one side of the hot riveting mechanism 2. The hot riveting mechanism 2 includes a hot riveting bracket 21, a hot riveting slider 22 slidably connected to one side of the hot riveting bracket 21, a hot riveting mounting plate 23 connected to one side of the hot riveting slider 22, and a hot riveting lifting cylinder 24 mounted on the hot riveting bracket 21 and connected to the hot riveting mounting plate 23. A hot riveting device is also connected to one side of the hot riveting mounting plate 23. A connecting plate 25 is provided, and a heat-insulating adapter plate 26 is also connected to the bottom of the heat-insulating adapter plate 25; a heat-insulating block 27 is connected to each end of the bottom of the heat-insulating adapter plate 26, and a heating seat 28 is also connected to the bottom of the two heat-insulating blocks 27; a heating rod 281 is also installed inside the heating seat 28, and a hot-press fixing block 282 is also connected to the top of the heating seat 28; a hot-press rivet 283 is also installed on the hot-press fixing block 282, and the lower part of the hot-press rivet 283 extends downward from the bottom of the heating seat 28.
[0013] In this embodiment, there are two hot-pressed rivets 283 and two heating rods 281. At the same time, a thermocouple 287 is installed in the heating base 28. The hot riveting structure uses an adjustable stroke cylinder for hot riveting, which can easily adjust the pressing distance according to the riveting effect. The heating base 28 is heated by the heating rod 281, and then the thermocouple 287 detects the temperature. Combined with an external temperature controller, the temperature is adjusted, making the hot riveting temperature controllable and improving safety. At the same time, a heat insulation block 27 is provided to prevent the heat generated by the heating base 28 from being transferred upward and avoid thermal damage to components such as the hot riveting mounting plate 23.
[0014] Preferably, in this embodiment, a linear guide rail is arranged vertically on one side of the hot riveting mounting plate 23, and the hot riveting connecting plate 25 is slidably connected to the linear guide rail; a buffer connecting plate 284 is also connected to the top of the hot riveting mounting plate 23, and a first equal-height screw is installed on the buffer connecting plate 284; the lower part of the first equal-height screw moves through the buffer connecting plate 284, and the bottom of the first equal-height screw is connected to the top of the hot riveting connecting plate 25; a first buffer spring 285 is also sleeved on the part of the first equal-height screw located between the bottom of the buffer connecting plate 284 and the top of the hot riveting connecting plate 25. With the first buffer spring 285, when the hot rivet presses down during hot riveting, the first buffer spring 285 can play a buffering role, preventing damage to the spring sheet and knob. Furthermore, a travel limit block 286 is also connected to the lower part of one side of the hot riveting mounting plate 23, and the linear guide rail is located above the travel limit block 286, which can limit the downward travel of the hot riveting connecting plate 25 to prevent it from falling.
[0015] In one embodiment, the turntable mechanism 1 includes a first rotary motor 11, a hollow rotary platform 12 connected to the first rotary motor 11, and a turntable 13 mounted on the hollow rotary platform 12; a plurality of fixture seats 14 are installed circumferentially on the top edge of the turntable 13, and a first bearing groove 15 is provided on the top of each fixture seat 14; a limit slot 16 is also provided on part of the inner wall of the first bearing groove 15 in the vertical direction; a turntable support assembly 3 is also arranged at the bottom of the turntable 13.
[0016] In this embodiment, the first rotary motor 11 can drive the hollow rotary platform 12 to rotate the rotary disk 13, so that one of the fixture seats 14 rotates to the assembly position. The external robot first places the rotary switch in the fixture (the inner wall of the first bearing groove 15 is provided with a limiting slot 16, and the outer wall of the switch is provided with a protrusion, which can position and limit the switch), and then assembles the spring piece on the rotary switch to complete the assembly (the switch is provided with a connecting post, and the spring piece is provided with a hole corresponding to the connecting post. The spring piece is locked in the connecting post through the hole so that the two can be riveted together by hot rivets).
[0017] Meanwhile, the turntable support assembly 3 includes a support mounting base 31, a support adjusting base 32, a support shaft 33, and a support wheel 34; the top of the support mounting base 31 has a first mounting groove extending to both sides therethrough, and the bottom of the support mounting base 31 is also equipped with an adjusting screw 35, with the upper part of the adjusting screw 35 inserted into the first mounting groove; the support adjusting base 32 has a U-shaped structure, and the support adjusting base 32 is slidably arranged in the first mounting groove, with the bottom of the U-shaped horizontal end of the support adjusting base 32 arranged at the top of the adjusting screw 35; the top of each of the two vertical ends of the U-shape of the support adjusting base 32 has a first slot, and both ends of the support shaft 33 are arranged in a first slot; a first bearing is also installed on the support shaft 33, and the support wheel 34 is installed on the first bearing; a side pressure plate 36 is also connected to each side of the support mounting base 31. The turntable support assembly 3 is located below the hot riveting mechanism 2. When the hot riveting mechanism 2 presses down on the product for hot riveting, the turntable 13 can be supported by the support wheel 34 to ensure the stability of the hot riveting. At the same time, the height of the support wheel 34 can be adaptively adjusted by moving the support adjustment seat 32 up and down according to actual use needs, which has strong compatibility.
[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. An automatic hot riveting device for spring contacts and knobs, characterized in that, The device includes a hot riveting mechanism and a turntable mechanism arranged on one side of the hot riveting mechanism. The hot riveting mechanism includes a hot riveting bracket, a hot riveting slider slidably connected to one side of the hot riveting bracket, a hot riveting mounting plate connected to one side of the hot riveting slider, and a hot riveting lifting cylinder mounted on the hot riveting bracket and connected to the hot riveting mounting plate. A hot riveting connecting plate is also connected to one side of the hot riveting mounting plate, and a heat insulation adapter plate is also connected to the bottom of the hot riveting connecting plate. A heat insulation block is connected to each end of the bottom of the heat insulation adapter plate, and a heating seat is also connected to the bottom of the two heat insulation blocks. A heating rod is also installed inside the heating seat, and a hot pressing fixing block is also connected to the top of the heating seat. A hot pressing rivet is also installed on the hot pressing fixing block, and the lower part of the hot pressing rivet extends downward from the bottom of the heating seat.
2. The automatic hot riveting device for springs and knobs according to claim 1, characterized in that, A linear guide rail is also arranged vertically on one side of the hot riveting mounting plate, and the hot riveting connecting plate is slidably connected to the linear guide rail; a buffer connecting plate is also connected to the top of the hot riveting mounting plate, and a first equal-height screw is also installed on the buffer connecting plate; the lower part of the first equal-height screw moves through the buffer connecting plate, and the bottom of the first equal-height screw is connected to the top of the hot riveting connecting plate; a first buffer spring is also sleeved on the part of the first equal-height screw located between the bottom of the buffer connecting plate and the top of the hot riveting connecting plate.
3. The automatic hot riveting device for springs and knobs according to claim 2, characterized in that, A travel limit block is also connected to the lower part of one side of the hot riveting mounting plate, and the linear guide rail is located above the travel limit block.
4. The automatic hot riveting device for spring contacts and knobs according to claim 1, characterized in that, The heating base is also equipped with a thermocouple.
5. The automatic hot riveting device for spring contacts and knobs according to claim 1, characterized in that, The turntable mechanism includes a first rotary motor, a hollow rotary platform connected to the first rotary motor, and a turntable mounted on the hollow rotary platform; a plurality of fixture seats are installed at intervals along the circumferential direction on the top edge of the turntable, and a first bearing groove is provided on the top of each fixture seat; a limit slot is also provided on part of the inner wall of the first bearing groove along the vertical direction; a turntable support assembly is also arranged at the bottom of the turntable.
6. The automatic hot riveting device for spring contacts and knobs according to claim 5, characterized in that, The turntable support assembly includes a support mounting base, a support adjusting base, a support shaft, and support wheels. The top of the support mounting base has a first mounting groove extending to both sides. An adjusting screw is installed at the bottom of the support mounting base, with its upper part inserted into the first mounting groove. The support adjusting base has a U-shaped structure and slides within the first mounting groove, with the bottom of the U-shaped horizontal end of the support adjusting base positioned above the top of the adjusting screw. A first retaining groove is opened at the top of each of the two vertical ends of the U-shape of the support adjusting base, and both ends of the support shaft are positioned within a first retaining groove. A first bearing is also installed on the support shaft, and the support wheels are mounted on the first bearing. A side pressure plate is connected to each side of the support mounting base.
