Air leakage hole punching and lettering integrated forming device for cylinder body plate of exhaust system

Abstract

The utility model belongs to the technical field of automobile engine exhaust systems, and relates to an exhaust system cylinder body plate air leakage hole punching and lettering integrated forming device. The lower surface of the upper die assembly is provided with a matrix female die (1) and an upper die punching pressure plate (2), the upper die punching pressure plate (2) is provided with a punching pin (3), the lower surface of the lower die assembly is provided with a matrix male die (4) and a lower die punching female die plate (5), and the lower die punching female die plate (5) is provided with a punching hole (6). The air leakage hole punching and lettering integrated forming device for the cylinder body plate material of the exhaust system is simple in structure, can realize one-step forming of punching of the air leakage hole and punching and lettering of the punching plate material on a pair of tools, reduces the number of machine tools, greatly improves the production efficiency, and simultaneously ensures high product size precision and stable part quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile engine exhaust systems, and more specifically relates to an exhaust system cylinder plate material punching and printing integrated forming device. Background Art

[0002] The existing production process for exhaust system muffler cylinder sheet metal consists of three steps: stamping and cutting corners, stamping and punching vent holes, and stamping and printing. Each production run requires three people and three machine tools to complete these three steps. This results in high product demand, a wide variety of sheet metal, and a high number of machine tools, resulting in slow production cycles and low output. Specifically, the shortcomings of the existing technology are: 1. Loose positioning during the stamping and punching process can easily result in unqualified punch hole positioning and dimensions, impacting the use of the next step. 2. Loose positioning during the stamping and printing process can easily result in unqualified printing positioning and dimensions, impacting the use of the next step. 3. Chipping of the punch tip and die sleeve during the stamping and punching process requires production to be stopped and the die removed from the press for repair, impacting production efficiency. 4. Chipping of the die tip during the stamping and printing process requires production to be stopped and the die removed from the press for repair, impacting production efficiency. 5. Damage to the punch tip and die sleeve requires mold maintenance personnel to open the upper and lower dies and remove the convex and concave parts, retaining plate, and backing plate from the upper and lower die bases, making repair inconvenient and time-consuming. 6. The position of the mold in the stamping and printing process is easy to be reversed, which may cause the trademark code to be inconsistent with the position of the vent hole, resulting in batch scrapping.

[0003] In the prior art, there is a technology named "An Exhaust Pipe" and with a publication (announcement) number of "CN111963291B". This technology belongs to the field of automobile exhaust pipes, and in particular relates to an exhaust pipe, which includes an exhaust pipe, a pressure dividing pipe, a sliding plug, a screw, a spring A, a cone plate, a guide rod, a ring sleeve E, a cover plate and a spring B, etc., wherein three pressure dividing pipes connected to the end of the exhaust pipe close to the engine are evenly installed circumferentially on the exhaust pipe where a muffler is installed, and the three pressure dividing pipes are parallel to the exhaust pipe; the present invention maintains the balance of exhaust pressure at the exhaust pipe exhaust port by radially opening three cone plates hinged circumferentially evenly inside the exhaust pipe when the exhaust pressure of the automobile engine is relatively high and swinging back and closing when the exhaust pressure of the automobile engine is relatively low, thereby preventing the exhaust pressure at the exhaust pipe exhaust port from fluctuating greatly when the engine is adding or reducing fuel, resulting in road surface water that submerges the exhaust pipe being sucked into the exhaust pipe, and preventing rainwater sucked into the exhaust pipe from corroding the exhaust pipe due to failure to be discharged in time.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in view of the deficiencies of the existing technology, a device for integrally forming the air hole punching and printing of the exhaust system cylinder sheet material is provided, which has a simple structure and can realize the punching and printing of the punched sheet material on a single set of tooling, thereby reducing the number of machine tools and greatly improving the production efficiency, while ensuring the high dimensional accuracy of the product and the stable quality of the parts.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The utility model is an integrated forming device for punching vent holes and printing characters on a cylinder sheet of an exhaust system. A character die and an upper die punching pressing plate are arranged on the lower surface of an upper die assembly, a punching pin is arranged on the upper die punching pressing plate, a character die convex die and a lower die punching concave plate are arranged on the lower surface of a lower die assembly, and punching holes are arranged on the lower die punching concave plate.

[0008] The die concave mold is installed on the die concave mold fixing plate, and the die convex mold is installed on the die convex mold fixing plate.

[0009] The upper mold assembly includes an upper mold plate, an upper mold fixing plate, and an upper mold pad. The die and cavity mold fixing plate is arranged on the lower surface of the upper mold fixing plate. The upper mold fixing plate and the upper mold pad are connected by a spring, and the upper mold pad is connected to the upper mold plate.

[0010] The lower die assembly includes a lower die plate, a lower die fixing plate, and a lower die pad. The die punch fixing plate is arranged on the upper surface of the lower die fixing plate. The lower die fixing plate and the lower die pad are connected by a spring, and the lower die pad is connected to the lower die plate.

[0011] A sheet material positioning block is provided on the upper surface of the lower template.

[0012] An upper mold guide column is arranged on the lower surface of the upper mold plate, and a lower mold guide sleeve is arranged on the upper surface of the lower mold plate.

[0013] The lower mold plate is connected to the lower mold base plate, and the lower mold base plate is connected to the lower mold pad.

[0014] An upper mold limiting column is arranged on the lower surface of the upper mold plate, and a lower mold limiting column is arranged on the upper surface of the lower mold plate.

[0015] The lower mold base plate includes a first lower mold base plate and a second lower mold base plate.

[0016] There are multiple sheet material positioning blocks, each of which is mounted on a corresponding sheet material positioning block fixing seat, and the sheet material positioning block fixing seat is mounted on the upper surface of the lower template.

[0017] The technical solution of this utility model is adopted, and the working principle and beneficial effects are as follows:

[0018] The exhaust system cylinder sheet material punching and printing integrated forming device described in the present invention has a structure in which an upper mold assembly and a lower mold assembly are separately made. The upper mold assembly includes a plurality of parts, which are combined and connected. The lower mold assembly includes a plurality of parts, which are combined and connected. A character die is provided on the lower surface of the upper mold assembly so that the upper mold has a printing function. An upper mold punching plate is provided on the lower surface of the upper mold assembly. A punching pin is provided on the upper mold punching plate so that the upper mold has a punching function. A character die is provided on the upper surface of the lower mold assembly so that the upper mold has a printing function. A lower mold punching plate is also provided on the lower surface of the lower mold assembly. Punching holes are provided on the lower mold punching plate so that the upper mold has a punching function. In this way, the punching and printing processes can be completed by only requiring the upper mold assembly and the lower mold assembly to contact each other once, effectively simplifying the processing process and improving processing efficiency. This utility model integrates the punching and printing of exhaust system cylinder sheet material with the stamping and printing processes on a single tool. This eliminates one machine tool and allows one person to operate it, significantly improving production efficiency and reducing labor costs. The product boasts high dimensional accuracy and stable quality. If damage occurs during the production process, the die, punch, or other components can be quickly replaced, shortening maintenance time, improving production efficiency, and reducing waiting time for machine tool and mold repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 This is a schematic structural diagram of the device for punching out air holes and printing characters on a cylinder sheet of an exhaust system according to the present invention;

[0021] Figure 2 This is a schematic structural diagram of the device for punching out air holes and printing characters on a cylinder sheet of an exhaust system according to the present invention;

[0022] Figure 3 This is a schematic structural diagram of the device for punching out air holes and printing characters on a cylinder sheet of an exhaust system according to the present invention;

[0023] Figure 4 This is a schematic structural diagram of the device for punching out air holes and printing characters on a cylinder sheet of an exhaust system according to the present invention;

[0024] Figure 5 This is a schematic structural diagram of the device for punching out air holes and printing characters on a cylinder sheet of an exhaust system according to the present invention;

[0025] The marks in the accompanying drawings are as follows: 1. die cavity; 2. upper die punching plate; 3. punching pin; 4. die punch; 5. lower die punching die plate; 6. punching hole; 7. die cavity fixing plate; 8. die punch fixing plate; 9. upper die plate; 10. upper die fixing plate; 11. upper die pad; 12. lower die plate; 13. lower die fixing plate; 14. lower die pad; 15. sheet metal positioning block; 16. upper die guide column; 17. lower die guide sleeve; 18. lower die bottom plate; 19. lower die pad; 20. upper die limiting column; 21. lower die limiting column; 22. first lower die bottom plate; 23. second lower die bottom plate; 24. sheet metal positioning block fixing seat. DETAILED DESCRIPTION

[0026] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0027] As attached Figure 1 -Attached Figure 5As shown, the utility model is a device for punching and printing exhaust holes in exhaust system cylinder sheet material. The lower surface of the upper die assembly is provided with a die die 1 and an upper die punching plate 2, and the upper die punching plate 2 is provided with a punching pin 3. The lower surface of the lower die assembly is provided with a die punch 4 and a lower die punching plate 5, and the lower die punching plate 5 is provided with a punching hole 6. The above structure addresses the shortcomings of the existing technology and proposes an improved technical solution. When setting up the structure, the upper mold assembly and the lower mold assembly are made separately. The upper mold assembly includes multiple parts, and the multiple parts are combined and connected. The lower mold assembly includes multiple parts, and the multiple parts are combined and connected. The lower surface of the upper mold assembly is provided with a die die 1, so that the upper mold has a printing processing function. The lower surface of the upper mold assembly is provided with an upper mold punching plate 2, and a punching pin 3 is provided on the upper mold punching plate 2, so that the upper mold has a punching function. The upper surface of the lower mold assembly is provided with a die convex mold 4, so that the upper mold has a printing processing function. The lower surface of the lower mold assembly is also provided with a lower mold punching plate 5, and a punching hole 6 is provided on the lower mold punching plate 5, so that the upper mold has a punching function. In this way, the upper mold assembly and the lower mold assembly only need to contact each other once to complete the punching and printing process operations, effectively simplifying the processing process and improving processing efficiency. The utility model is an integrated device for punching and printing air holes for the cylinder sheet of the exhaust system. The punching and printing processes of the stamped sheet are formed on one set of tooling, which reduces one machine tool and can be operated by one person. The production efficiency is greatly improved and the labor cost is reduced. The product has high dimensional accuracy and stable quality. If the type die 1 and the type die punch 4 are damaged during the production process, they can be quickly replaced, shortening the maintenance time, improving production efficiency, and reducing the waiting time for machine tool mold maintenance. The integrated device for punching and printing air holes for the cylinder sheet of the exhaust system described in the utility model has a simple structure and can realize the punching and printing processes of the stamped sheet on one set of tooling, reducing the number of machine tools, greatly improving production efficiency, and ensuring the high dimensional accuracy of the product and the stable quality of the parts.

[0028] The die matrix 1 is mounted on a die matrix fixing plate 7, and the punch 4 is mounted on a punch fixing plate 8. In the above structure, the die matrix 1 is bolted to the die matrix fixing plate 7, ensuring a secure connection and convenient removal and replacement. The punch 4 is bolted to the punch fixing plate 8, ensuring a secure connection and convenient removal and replacement.

[0029] The upper mold assembly includes an upper mold plate 9, an upper mold fixing plate 10, and an upper mold pad 11. The die concave mold fixing plate 7 is arranged on the lower surface of the upper mold fixing plate 10. The upper mold fixing plate 10 and the upper mold pad 11 are connected by a spring. The upper mold pad 11 is connected to the upper mold plate 9. The above structure, through the setting of the spring, makes the upper mold and the lower mold first flexibly contact, and then apply force for processing. The lower mold assembly includes a lower mold plate 12, a lower mold fixing plate 13, and a lower mold pad 14. The die convex mold fixing plate 8 is arranged on the upper surface of the lower mold fixing plate 13. The lower mold fixing plate 13 and the lower mold pad 14 are connected by a spring. The lower mold pad 14 is connected to the lower mold plate 12. The above structure, through the setting of the spring, makes the lower mold and the upper mold first flexibly contact, and then apply force for processing.

[0030] The upper surface of the lower template 12 is provided with sheet metal positioning blocks 15. Multiple sheet metal positioning blocks 15 are provided, each mounted on a corresponding sheet metal positioning block fixing seat 24, which is mounted on the upper surface of the lower template 12. In the above structure, the sheet metal positioning blocks 15 are provided at different positions on the edge to reliably position the sheet metal to be processed.

[0031] Upper die guide pins 16 are provided on the lower surface of the upper die plate 9, and lower die guide sleeves 17 are provided on the upper surface of the lower die plate 12. With this structure, when the upper and lower die assemblies are in contact, each upper die guide pin 16 is movably inserted into a corresponding lower die guide sleeve 17, achieving horizontal positioning of the upper and lower die assemblies, ensuring that the upper and lower die assemblies can only move up and down, and ensuring machining accuracy.

[0032] The lower mold plate 12 is connected to the lower mold base plate 18, and the lower mold base plate 18 is connected to the lower mold pad 19. With the above structure, the lower mold base plate 18 and the lower mold pad 19 can reliably support the lower mold plate 12.

[0033] The upper mold limit post 20 is set on the lower surface of the upper mold plate 9, and the lower mold limit post 21 is set on the upper surface of the lower mold plate 12. In the above structure, when the upper mold assembly and the lower mold assembly are in contact, the upper mold limit post 20 and the lower mold limit post 21 are in contact, realizing the limit of the distance between the two and ensuring the processing accuracy.

[0034] The lower mold base plate 18 includes a first lower mold base plate 22 and a second lower mold base plate 23 .

[0035] The exhaust system cylinder sheet material punching and printing integrated forming device described in the present invention, when the structure is set, an upper mold assembly and a lower mold assembly are made separately, the upper mold assembly includes multiple parts, and the multiple parts are combined and connected, the lower mold assembly includes multiple parts, and the multiple parts are combined and connected, the lower surface of the upper mold assembly is provided with a die die 1, so that the upper mold has a printing processing function, the lower surface of the upper mold assembly is provided with an upper mold punching plate 2, and the upper mold punching plate 2 is provided with a punching pin 3, so that the upper mold has a punching function, the upper surface of the lower mold assembly is provided with a die convex mold 4, so that the upper mold has a printing processing function, the lower surface of the lower mold assembly is further provided with a lower mold punching plate 5, and the lower mold punching plate 5 is provided with a punching hole 6, so that the upper mold has a punching function. In this way, the punching and printing process operations can be completed by only one contact operation between the upper mold assembly and the lower mold assembly, effectively simplifying the processing process and improving processing efficiency. This utility model integrates the punching and printing of exhaust system cylinder sheet material with the punching and printing steps on a single tool. This eliminates one machine tool and allows one person to operate it, significantly improving production efficiency and reducing labor costs. The product boasts high dimensional accuracy and stable quality. If damage occurs during the production process, the die 1 and punch 4 can be quickly replaced, shortening maintenance time, improving production efficiency, and reducing waiting time for machine tool and mold repairs.

[0036] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An integrated device for punching vent holes and printing characters on a sheet material of an exhaust system cylinder, characterized by: The lower surface of the upper die assembly is provided with a die die (1) and an upper die punching plate (2), a punching pin (3) is provided on the upper die punching plate (2), the lower surface of the lower die assembly is provided with a die convex die (4) and a lower die punching plate (5), and a punching hole (6) is provided on the lower die punching plate (5); The die concave mold (1) is mounted on a die concave mold fixing plate (7), and the die convex mold (4) is mounted on a die convex mold fixing plate (8); The upper die assembly comprises an upper die plate (9), an upper die fixing plate (10), and an upper die pad (11); the die recess fixing plate (7) is arranged on the lower surface of the upper die fixing plate (10); the upper die fixing plate (10) and the upper die pad (11) are connected via a spring; and the upper die pad (11) is connected to the upper die plate (9); The lower die assembly comprises a lower die plate (12), a lower die fixing plate (13), and a lower die pad (14); the die punch fixing plate (8) is arranged on the upper surface of the lower die fixing plate (13); the lower die fixing plate (13) and the lower die pad (14) are connected via a spring; and the lower die pad (14) is connected to the lower die plate (12); A sheet material positioning block (15) is provided on the upper surface of the lower template (12); An upper mold guide column (16) is provided on the lower surface of the upper mold plate (9), and a lower mold guide sleeve (17) is provided on the upper surface of the lower mold plate (12); The lower mold plate (12) is connected to the lower mold base plate (18), and the lower mold base plate (18) is connected to the lower mold pad (19); An upper mold limiting column (20) is provided on the lower surface of the upper mold plate (9), and a lower mold limiting column (21) is provided on the upper surface of the lower mold plate (12).

2. The device for punching out air holes and printing characters in one piece for an exhaust system cylinder sheet according to claim 1, characterized in that: The lower mold base plate (18) comprises a first lower mold base plate (22) and a second lower mold base plate (23).

3. The device for punching out air holes and printing characters in one piece for an exhaust system cylinder sheet according to claim 2, characterized in that: The sheet material positioning blocks (15) are provided in plurality, and each sheet material positioning block (15) is mounted on a corresponding sheet material positioning block fixing seat (24), and the sheet material positioning block fixing seat (24) is mounted on the upper surface of the lower template (12).

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