A horn cover stamping device

Abstract

This invention relates to the field of metal sheet stamping technology and discloses a horn-shaped cover stamping device. It solves the problem in existing horn-shaped cover stamping processes where different types of annular discs are positioned at different heights on the lower die, making it difficult to ensure the discs are placed horizontally and easily affecting stamping quality. By flexibly adjusting the support platform assembly and guide rod in the support mechanism according to the size of the annular discs, it ensures that different types of annular discs remain horizontal before stamping and are accurately fitted onto the lower die. This effectively avoids stamping defects caused by the tilting of the annular discs, improving product quality consistency. Furthermore, the adjustment unit, through the cooperation of a vibration rod and a spring, causes the annular discs to vibrate during stamping, enhancing the flexibility of movement when the annular discs contact the inclined surface of the lower die, further ensuring that different types of annular discs remain horizontal before stamping.

Description

Technical Field

[0001] This invention relates to the field of metal sheet stamping technology, specifically to a horn cover stamping device. Background Technology

[0002] A flared dome is a common industrial component, typically manufactured from a metal ring-shaped disc using a stamping device. The stamping device mainly consists of a frustum-shaped lower die and a corresponding upper die. The lower surface of the upper die has a stamping groove that matches the lower die. During the stamping process, the ring-shaped disc is first horizontally placed onto the curved surface of the lower die. Then, the upper die is controlled to apply pressure towards the lower die, deforming the disc into a flared dome with the inclination of the lower die's curved surface. This type of flared dome is widely used in applications such as hoppers near feed inlets and reducing pipes.

[0003] The design of the frustum-shaped lower die offers high flexibility, enabling the production of various horn-shaped domes with different diameters but consistent inclination, as long as the upper and lower diameters of the dome are within the range of the upper and lower diameters of the frustum-shaped lower die. During the stamping process, the upper die preferentially contacts the edge of the annular disc, subsequently further compressing it to deform it. However, different types of annular discs will be at different heights when fitted onto the lower die surface. To ensure stamping quality, the annular disc must be placed horizontally on the lower die. If the annular disc is misaligned, the pressure applied by the upper die to the edge will be uneven, ultimately resulting in a non-compliant horn-shaped dome. Therefore, for different types of annular discs placed on the lower die, it is necessary to ensure their horizontal placement to guarantee that the stamped horn-shaped dome meets design requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a horn cover stamping device, which solves the problem that in the existing horn-shaped round cover stamping process, different types of annular discs are at different heights when they are fitted on the lower die, which makes it inconvenient to ensure that the annular discs are placed in a horizontal state and easily affects the stamping quality of the annular discs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a horn cover stamping device, comprising:

[0006] The operating table is equipped with a forming mold, which includes a lower mold in the shape of a frustum and an upper mold set above the lower mold. The operating table includes a base and a pressure plate. The lower mold is fixedly assembled on the upper surface of the base, and the upper mold is fixedly assembled on the lower surface of the pressure plate. A pull bracket is assembled on the lower side of the base. The pull bracket supports the pressure plate above the base through a shaft that moves through the surface of the base. A hydraulic cylinder for controlling its lifting and lowering is provided on the lower side of the pull bracket.

[0007] Multiple support mechanisms are provided and are circumferentially assembled around the lower mold to horizontally support the annular disc. Each support mechanism includes a guide rod, which is parallel to the inclined surface of the lower mold along its length. The upper end of the guide rod is provided with a support platform assembly for supporting the annular disc, and the lower end is movably connected to the pull frame through a drive assembly.

[0008] Multiple support assemblies horizontally support the annular disc. The descending bracket drives multiple guide rods connected to it to descend synchronously through multiple drive components. This causes the multiple support assemblies to descend synchronously along the inclined surface of the lower mold, ultimately controlling the annular disc to descend in a horizontal state. The inner circle of the horizontally descending annular disc engages with the inclined surface of the lower mold, allowing the annular disc to be horizontally fitted onto the surface of the lower mold.

[0009] As a further description of the above technical solution: the driving component includes a guide rail frame horizontally mounted on the lower end of the guide rod, and a support plate fixedly mounted on one side of the pull frame. A column is fixedly mounted on the upper surface of the support plate. The column moves within the guide groove on the surface of the guide rail frame. A pair of guide wheels are mounted on the surface of the column. The pair of guide wheels make rolling contact with the upper and lower surfaces of the guide rail frame, respectively.

[0010] As a further description of the above technical solution: an adjustment unit is provided on one side of the guide rod for controlling the vibration of the support assembly;

[0011] When the support assembly vibrates under the drive of the adjustment unit, it can cause the horizontally supported annular disc to vibrate. In the contact between the annular disc and the inclined surface of the lower die, the flexibility of the inner circle movement is enhanced when the inclined surface of the lower die pushes one side of the inner circle of the annular disc.

[0012] As a further description of the above technical solution: the support assembly includes a support plate, and a spring piece is integrally provided in the middle of the support plate, the spring piece being in the shape of a "Z";

[0013] An assembly plate is provided at the upper end of the guide rod, and the lifting plate is fixedly assembled on the upper surface of the assembly plate.

[0014] As a further description of the above technical solution: the guide rod surface is provided with an opening groove;

[0015] The adjustment unit includes a vibration rod, both ends of which are elastically mounted to the inside of the opening groove by springs. A second support plate for movably mounting the vibration rod is fixedly provided on the inner wall of the opening groove, and one end of the spring abuts against one side of the second support plate.

[0016] As a further description of the above technical solution: a contact is fixedly connected to the upper end of the vibration rod, the contact abuts against the lower end of the spring piece, and a toggle part is provided on the side of the vibration rod.

[0017] As a further description of the above technical solution: the adjustment unit also includes a vibration mechanism fixedly mounted on the lower surface of the base, the vibration mechanism including a speed-changing gearbox fixedly mounted on the lower surface of the base, the output end of the speed-changing gearbox being connected to a dial, and the dial being in rotatable contact with the dialing part.

[0018] As a further description of the above technical solution: the drive end of the transmission gearbox is connected to a stranded reel via a flywheel, a pull rope is provided on the surface of the stranded reel, one end of the pull rope is fixedly connected to the surface of the pull frame, and a coil spring is also provided on one side of the stranded reel, one end of the coil spring is fixedly connected to the surface of the transmission gearbox.

[0019] As a further description of the above technical solution: a support block is also fixedly connected to the upper end of the assembly plate. The support block is located below the spring sheet and is used to support the outer end of the spring sheet.

[0020] In summary, due to the adoption of the above technical solutions, the beneficial effects of this invention are as follows: the support platform assembly and guide rod in the support mechanism are flexibly adjusted according to the size of the annular disc, ensuring that different types of annular discs can maintain a horizontal state before stamping and be accurately fitted onto the lower die. This effectively avoids stamping defects caused by the tilting of the annular discs and improves the consistency of product quality. Secondly, the adjustment unit, through the cooperation of the vibration rod and the spring sheet, causes the annular disc to vibrate during the stamping process, enhancing the movement flexibility of the annular disc when it contacts the inclined surface of the lower die, further ensuring that different types of annular discs can maintain a horizontal state before stamping, thus guaranteeing the smoothness of the stamping process and the forming quality of the final product. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the operating table and its lower structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall front view of the present invention;

[0024] Figure 4 This is a schematic diagram of the support mechanism structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the drive component structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the upper end structure of the guide rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the lower end structure of the guide rod of the present invention;

[0028] Figure 8This is a schematic diagram of the cross-sectional structure of the guide rod of the present invention;

[0029] Figure 9 This is a schematic diagram of the disassembled structure of the vibration mechanism of the present invention.

[0030] In the diagram: 10. Operating table; 11. Base; 12. Pressure plate; 13. Hydraulic cylinder; 14. Pull frame; 20. Forming mold; 21. Lower mold; 22. Upper mold; 30. Support mechanism; 31. Guide rod; 311. Guide seat; 312. Opening slot; 313. Assembly plate; 32. Support assembly; 321. Lifting plate; 322. Support block; 323. Spring; 33. Drive assembly; 331. Guide rail frame; 332. Support plate one; 333. Column; 334. Guide wheel; 34. Vibration mechanism; 341. Gearbox; 342. Actuating disc; 343. Flywheel; 344. Twisted wire disc; 345. Pull rope; 346. Coil spring; 35. Vibration rod; 351. Actuating part; 352. Spring; 353. Support plate two; 354. Contact. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0033] Combination Figures 1-9 A horn cover stamping device, comprising:

[0034] The operating table 10 is equipped with a forming mold 20, which includes a lower mold 21 in the shape of a frustum and an upper mold 22 disposed above the lower mold 21. The lower surface of the upper mold 22 is provided with a stamping groove adapted to the lower mold 21. The operating table 10 includes a base 11 and a pressure plate 12. The lower mold 21 is fixedly mounted on the upper surface of the base 11, and the upper mold 22 is fixedly mounted on the lower surface of the pressure plate 12. A pull bracket 14 is mounted on the lower side of the base 11. The pull bracket 14 supports the pressure plate 12 above the base 11 by a shaft that moves through the surface of the base 11. A hydraulic cylinder 13 is provided on the lower side of the pull bracket 14 to control its lifting and lowering. When the pull bracket 14 is lifted and lowered by the hydraulic cylinder 13, the pressure plate 12 can be lifted and lowered, further controlling the upper mold 22 to press onto the upper side of the lower mold 21, and pressing the annular disc sleeved on the surface of the lower mold 21 into a trumpet-shaped cover.

[0035] To accommodate different types of annular discs, they are all placed horizontally on the lower die 21 to ensure that the stamped trumpet-shaped cover meets the design requirements.

[0036] Combination Figures 1-5 Around the lower mold 21, a plurality of support mechanisms 30 for horizontally supporting the annular disc are arranged in the circumferential direction. The support mechanism 30 includes a guide rod 31, which is parallel to the inclined surface of the lower mold 21 along its length direction. The guide rod 31 is movably mounted on the platform 11 through a guide seat 311. Under the guidance of the guide seat 311, the guide rod 31 moves along its length direction. The upper end of the guide rod 31 is provided with a support platform assembly 32 for supporting the annular disc, and the lower end is connected to the pull frame 14 through a drive assembly 33.

[0037] The drive assembly 33 includes a guide rail frame 331 horizontally mounted on the lower end of the guide rod 31, and a support plate 332 fixedly mounted on one side of the pull frame 14. A column 333 is fixedly mounted on the upper surface of the support plate 332. The column 333 moves in the guide groove on the surface of the guide rail frame 331. A pair of guide wheels 334 are mounted on the surface of the column 333. The pair of guide wheels 334 roll in contact with the upper and lower surfaces of the guide rail frame 331 respectively. When the pull frame 14 moves downward, the column 333 pulls the guide rail frame 331 downward through the guide wheels 334. Furthermore, it also pulls the guide rod 31 downward along its length. The guide wheels 334 roll on the surface of the guide rail frame 331 to adapt to the displacement of the lower end of the guide rod 31 in the horizontal direction.

[0038] Specifically, the annular disc is placed on the upper surface of the support assembly 32, so that multiple support assemblies 32 support the annular disc horizontally. Then, the pull frame 14 is controlled to descend. The pull frame 14 drives multiple guide rods 31 connected to it to descend synchronously through multiple drive components 33, so that multiple support assemblies 32 descend synchronously along the inclined surface of the lower mold 21. Finally, the annular disc supported by multiple support assemblies 32 is controlled to remain horizontal as it descends. During the process of the annular disc descending horizontally, the inner circle of the annular disc will contact the inclined surface of the lower mold 21. When the two contact, the lower mold 21 will push the inner circle of the annular disc until the inner circle of the annular disc is completely fitted onto the inclined surface of the lower mold 21. In this way, for different types of annular discs, it can be ensured that the annular disc is horizontally fitted onto the surface of the lower mold 21.

[0039] Combination Figures 4-9 An adjustment unit is provided on one side of the guide rod 31 to control the vibration generated by the support assembly 32;

[0040] When the support assembly 32 vibrates under the drive of the adjustment unit, it can cause the horizontally supported annular disc to vibrate. When the annular disc contacts the inclined surface of the lower mold 21, and the inclined surface of the lower mold 21 pushes one side of the inner circle of the annular disc, the flexibility of the annular disc's movement is enhanced.

[0041] Specifically, the support assembly 32 includes a support plate 321, and a spring piece 323 is integrally provided in the middle of the support plate 321. The spring piece 323 is "Z" shaped, and its upper surface can be extended adaptively away from the lower mold 21 to ensure that it can support annular discs of different diameters.

[0042] An assembly plate 313 is provided at the upper end of the guide rod 31, and the lifting plate 321 is fixedly assembled on the upper surface of the assembly plate 313.

[0043] The guide rod 31 has an opening groove 312 on its surface;

[0044] The adjustment unit includes a vibration rod 35. Both ends of the vibration rod 35 are elastically mounted to the inside of the opening slot 312 by springs 352. The inner wall of the opening slot 312 is fixedly provided with a support plate 353 for movably mounting the vibration rod 35. One end of the spring 352 abuts against one side of the support plate 353. The vibration rod 35, which is elastically supported by the spring 352, can reciprocate along the length of the guide rod 31.

[0045] Combination Figures 6-8 The upper end of the vibrating rod 35 is fixedly connected to a contact 354, which abuts against the lower end of the spring 323. The vibrating rod 35 is provided with a toggle part 351 on its side, which includes multiple protrusions protruding from the side of the guide rod 31.

[0046] The adjustment unit also includes a vibration mechanism 34 fixedly mounted on the lower surface of the base 11. The vibration mechanism 34 includes a speed change gearbox 341 fixedly mounted on the lower surface of the base 11. The output end of the speed change gearbox 341 is connected to a dial 342. The dial 342 has multiple protrusions arranged circumferentially on its surface. The dial 342 is in rotational contact with the dialing part 351.

[0047] Specifically, the shift disk 342 is driven by the gearbox 341 to rotate at high speed. When the protrusion on the surface of the shift disk 342 contacts the shifting part 351, it pushes the vibrating rod 35 downward. Then, the vibrating rod 35 returns to its original position under the push of the spring 352. Thus, the shifting part 351 will move back and forth at a high frequency. Furthermore, the contact 354 fixedly connected to the upper end of the vibrating rod 35 will strike the lower side of the spring 323, causing the spring 323 to vibrate slightly. In this way, when the annular disc is placed on the upper side of the spring 323, it will also be vibrated. Furthermore, while the annular disc is in contact with the inclined surface of the lower mold 21 while it is continuously vibrating, the inclined surface of the lower mold 21 pushes one side of the inner circle of the annular disc, which can enhance the flexibility of the movement of the annular disc. In all these ways, it can be ensured that the annular disc is horizontally fitted on the surface of the lower mold 21.

[0048] Combination Figure 9The drive end of the transmission gearbox 341 is connected to a stranded reel 344 via a flywheel 343. A pull rope 345 is provided on the surface of the stranded reel 344. One end of the pull rope 345 is fixedly connected to the surface of the pull frame 14. A coil spring 346 is also provided on one side of the stranded reel 344. One end of the coil spring 346 is fixedly connected to the surface of the transmission gearbox 341.

[0049] A support block 322 is also fixedly connected to the upper end of the assembly plate 313. The support block 322 is located below the spring piece 323 and is used to support the outer end of the spring piece 323.

[0050] Specifically, the descending pull frame 14 pulls the stranded reel 344 to rotate via the pull rope 345, which drives the speed change gearbox 341. Since the pull frame 14 descends slowly in actual operation, the rotational speed of the stranded reel 344 is also limited. Therefore, the speed change gearbox 341 is needed to change speed to increase the rotational speed of the actuating disc 342. The coil spring 346 stores energy when the pull rope 345 pulls the stranded reel 344 to rotate. When the pull frame 14 rises, it can drive the stranded reel 344 to reset, so that the pull rope 345 is rewound onto the surface of the stranded reel 344.

[0051] Regarding the setting of support block 322, combined with Figure 8 When the puller 14 moves upward, the horn cover formed on the surface of the lower mold 21 can be pushed out of the surface of the lower mold 21 by the spring piece 323, and the material is unloaded. The support block 322 is the same as the upward support force of the outer end of the lifting spring piece 323, ensuring that the horn cover can be smoothly pushed out of the surface of the lower mold 21.

[0052] The function of the stranding disc 344 is as follows: it drives the gearbox 341 only when the puller 14 pulls the stranding disc 344 to rotate via the pull rope 345. During this process, the guide rod 31 is in the descending stage. The driven gearbox 341 will cause the actuating disc 342 to rotate, which will cause the reciprocating vibrating rod 35 to strike the spring 323 through the contact 354 so that the annular disc in the descending state can be vibrated.

[0053] When the puller 14 is in the raised state, the coil spring 346 controls the twisted wire disc 344 to reset and rotate. In this rotating state, the twisted wire disc 344 does not drive the transmission gearbox 341, causing the actuating disc 342 to not rotate, and the vibration rod 35 will also remain stationary. At this time, the spring 323 will not vibrate, which ensures the stability of the spring 323 when the horn is pushed out on the surface of the lower mold 21.

[0054] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A horn cover stamping device, characterized in that, include: The operating table is equipped with a forming mold, which includes a lower mold in the shape of a frustum and an upper mold set above the lower mold. The operating table includes a base and a pressure plate. The lower mold is fixedly assembled on the upper surface of the base, and the upper mold is fixedly assembled on the lower surface of the pressure plate. A pull bracket is assembled on the lower side of the base. The pull bracket supports the pressure plate above the base through a shaft that moves through the surface of the base. A hydraulic cylinder for controlling its lifting and lowering is provided on the lower side of the pull bracket. Multiple support mechanisms are provided and are circumferentially assembled around the lower mold to horizontally support the annular disc. Each support mechanism includes a guide rod, which is parallel to the inclined surface of the lower mold along its length. The upper end of the guide rod is provided with a support platform assembly for supporting the annular disc, and the lower end is movably connected to the pull frame through a drive assembly. Multiple support assemblies horizontally support the annular disc. The descending bracket drives multiple guide rods connected to it to descend synchronously through multiple drive components, so that multiple support assemblies descend synchronously along the inclined surface of the lower mold. Finally, the annular disc is controlled to descend in a horizontal state. The inner circle of the horizontally descending annular disc matches the inclined surface of the lower mold, so that the annular disc is horizontally fitted on the surface of the lower mold. An adjustment unit is provided on one side of the guide rod to control the vibration of the support assembly; When the support assembly vibrates under the drive of the adjustment unit, it can cause the horizontally supported annular disc to vibrate. In the contact between the annular disc and the inclined surface of the lower die, the flexibility of the inner circle movement is enhanced when the inclined surface of the lower die pushes one side of the inner circle of the annular disc.

2. The horn cover stamping device according to claim 1, characterized in that: The drive assembly includes a guide rail frame horizontally mounted on the lower end of the guide rod, and a support plate fixedly mounted on one side of the pull frame. A column is fixedly mounted on the upper surface of the support plate. The column moves within a guide groove on the surface of the guide rail frame. A pair of guide wheels are mounted on the surface of the column, and the pair of guide wheels make rolling contact with the upper and lower surfaces of the guide rail frame, respectively.

3. The horn cover stamping device according to claim 2, characterized in that: The support platform assembly includes a support plate, and a spring piece is integrally provided in the middle of the support plate. The spring piece is in the shape of a "Z". An assembly plate is provided at the upper end of the guide rod, and the lifting plate is fixedly assembled on the upper surface of the assembly plate.

4. The horn cover stamping device according to claim 3, characterized in that: The guide rod surface is provided with an opening groove; The adjustment unit includes a vibration rod, both ends of which are elastically mounted to the inside of the opening groove by springs. A second support plate for movably mounting the vibration rod is fixedly provided on the inner wall of the opening groove, and one end of the spring abuts against one side of the second support plate.

5. The horn cover stamping device according to claim 4, characterized in that: A contact is fixedly connected to the upper end of the vibration rod, and the contact abuts against the lower end of the spring piece. A toggle part is provided on the side of the vibration rod.

6. The horn cover stamping device according to claim 5, characterized in that: The adjustment unit also includes a vibration mechanism fixedly mounted on the lower surface of the base. The vibration mechanism includes a speed-changing gearbox fixedly mounted on the lower surface of the base. The output end of the speed-changing gearbox is connected to a dial, and the dial is in rotatable contact with the dialing part.

7. A horn cover stamping device according to claim 6, characterized in that: The drive end of the transmission gearbox is connected to a stranded reel via a flywheel. A pull rope is provided on the surface of the stranded reel, and one end of the pull rope is fixedly connected to the surface of the pull frame. A coil spring is also provided on one side of the stranded reel, and one end of the coil spring is fixedly connected to the surface of the transmission gearbox.

8. A horn cover stamping device according to claim 3, characterized in that: A support block is also fixedly connected to the upper end of the assembly plate. The support block is located below the spring sheet and is used to support the outer end of the spring sheet.

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