Flanging inner supporting device for automobile silencer production

Abstract

The utility model relates to the technical field of automobile silencer production, and discloses a flanging inner support device for automobile silencer production, which comprises an assembly plate, the top end of the assembly plate is fixedly connected with an electric push rod, the outer bottom end of the electric push rod is fixedly connected with a plurality of connecting blocks I, the interiors of the connecting blocks I are rotatably connected with connecting rods I, and the connecting rods I are fixedly connected with the assembly plate. Three connecting plates are rotatably connected to the far sides of the exteriors of the multiple first connecting rods, multiple second connecting blocks are fixedly connected to the exteriors of the driving ends of the electric push rods, second connecting rods are rotatably connected to the interiors of the second connecting blocks, and connecting plates are fixedly connected to the left and right sides of the connecting plates; and two sliding rods are connected into the connecting plate in a sliding manner. According to the utility model, the tedious part replacement process is avoided, the working efficiency is further improved, the elastic force of the telescopic spring can help the inner supporting plate to automatically adjust the position, and the inner wall of the silencer is more uniformly supported.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile muffler production, in particular to a flanging inner support device for automobile muffler production. Background Art

[0002] A car muffler is a device installed in a vehicle's exhaust system, primarily designed to reduce noise generated by the engine's exhaust. It achieves this through a series of structural designs and acoustic principles. A key process in muffler production is flanging. Flanging is the process of shaping the edge of the muffler barrel to create a defined, folded shape. This process is typically used to connect other components, such as exhaust pipes or mounting brackets. Internal support devices provide uniform support from within the barrel, effectively resisting the external forces applied by the flanging die and ensuring the barrel maintains its original shape and dimensional accuracy during flanging.

[0003] In the prior art, some of the internal supports are driven by rotating screws or other driving methods to push the wedge blocks to move radially. Multiple wedge blocks are evenly distributed inside the silencer and are initially in a contracted state to facilitate the insertion of the silencer. During the flanging operation, the screw is rotated to move the wedge blocks outward, and the inclined surface of the wedge blocks is used to contact the inner wall of the silencer. As the wedge blocks move, a uniform supporting force is generated on the inner wall of the silencer. Although the wedge block internal support device is designed with a certain adjustment function, this process of replacing wedge blocks of different sizes to adapt to mufflers of different specifications is relatively cumbersome and requires professional tools and certain operating skills. This will increase the difficulty and time of replacement, thereby reducing production efficiency. Therefore, in response to the above shortcomings, a flanging internal support device for automobile muffler production is proposed. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings of the existing technology and to propose a flange inner support device for automobile muffler production, aiming to improve the problem in the existing technology that when facing mufflers of different specifications, it is time-consuming to replace the wedge blocks, which increases the replacement time and difficulty and reduces production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flanging internal support device for automobile muffler production, comprising an assembly plate, the top of the assembly plate is fixedly connected to an electric push rod, the external bottom end of the electric push rod is fixedly connected to a plurality of connecting blocks 1, the internal rotation of the connecting block 1 is connected to a connecting rod 1, and the external far side of the plurality of connecting rods 1 is rotatably connected to three connecting plates, the driving end of the electric push rod is externally fixedly connected to a plurality of connecting blocks 2, the internal rotation of the connecting block 2 is connected to a connecting rod 2, the left and right sides of the connecting plate are fixedly connected to the connecting plate, the internal sliding connection of the connecting plate is two sliding rods, and the far side of the plurality of sliding rods is fixedly connected to three inner support blocks, the external sleeve of the sliding rod is provided with a telescopic component that provides elastic force, and the bottom end of the assembly plate is fixedly connected to a working plate.

[0006] Furthermore, assembly holes are provided at the four corners of the assembly plate and the working plate, the interior of the assembly hole is slidably connected to a clamping rod, the interior of the clamping rod is movably connected to a fixing rod, the exterior of the fixing rod is fixedly connected to a limiting disk, the exterior of the fixing rod is sleeved with a strong spring, the interior bottom end of the clamping rod is rotatably connected to a rotating ring, and the exterior bottom end of the fixing rod is fixedly connected to two blocking rods.

[0007] Furthermore, the telescopic assembly includes a telescopic spring, which is sleeved on the outside of the sliding rod, one end of the telescopic spring is fixedly connected to one side of the inner support block, and the other end of the telescopic spring is fixedly connected to one side of the connecting plate.

[0008] Furthermore, the outer portions of the far sides of the plurality of connecting rods 2 are rotatably connected to the inner portions of the top ends of the close sides of the plurality of connecting plates, and the material of the inner support blocks is a rubber pad.

[0009] Furthermore, a baffle is fixedly connected to one side of the sliding rod, and one side of the baffle is in contact with one side of the connecting plate.

[0010] Furthermore, the outer portion of the clamping rod is slidably connected to the inner portion of the assembly plate, and the outer portion of the blocking rod is slidably connected to the inner portion of the assembly hole.

[0011] Furthermore, the outer portion of the fixing rod is movably connected to the inner portion of the rotating ring, and the outer portion of the limiting plate is movably connected to the inner portion of the clamping rod.

[0012] Furthermore, the outer top end of the fixing rod is fixedly connected to two twisting blocks, and the outer portion of the blocking rod is in contact with the bottom end of the working plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present invention, the electric push rod drives the top connecting rod 1 to move, and then the connecting rod 2 at the bottom end of the electric push rod moves, so that the inner support block moves outward or inward. When facing mufflers of different specifications, the position of the inner support block can be adjusted by controlling the extension and retraction of the electric push rod, avoiding the tedious process of component replacement and improving work efficiency. The elastic force of the telescopic spring can help the inner support plate automatically adjust its position, and support the inner wall of the muffler more evenly.

[0015] 2. In the present invention, when installing the device, it is only necessary to open the assembly hole on the workbench in advance, then put the clamping rod in and perform a simple pressing and twisting operation, so that the blocking rod is limited and cannot be pulled out from the assembly hole. This allows the device to be installed quickly, making the installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a flanging inner support device for automobile muffler production proposed by the utility model;

[0017] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0018] Figure 3 This is a schematic structural diagram of a connecting rod of a flanging inner support device for automobile muffler production proposed by the present invention;

[0019] Figure 4 for Figure 3 Enlarged view of point B in FIG.

[0020] Figure 5 This is a schematic diagram of the assembly plate structure of a flanging inner support device for automobile muffler production proposed by the utility model;

[0021] Figure 6 for Figure 5 Enlarged view of point C in the figure.

[0022] Legend:

[0023] 1. Assembly plate; 2. Electric push rod; 3. Connecting block 1; 4. Connecting rod 1; 5. Connecting plate; 6. Connecting block 2; 7. Connecting rod 2; 8. Connecting plate; 9. Sliding rod; 10. Inner support block; 11. Telescopic spring; 12. Baffle plate; 13. Working plate; 14. Assembly hole; 15. Clamping rod; 16. Fixed rod; 17. Limiting plate; 18. Power spring; 19. Rotating ring; 20. Twisting block; 21. Baffle plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 3 The utility model provides an embodiment of a flanging inner support device for automobile muffler production, comprising an assembly plate 1, the top of the assembly plate 1 is fixedly connected to an electric push rod 2, the electric push rod 2 serves as a power source and plays a key role in the entire inner support operation, the outer bottom end of the electric push rod 2 is fixedly connected to a plurality of connecting blocks 3, the inner rotatable connection of the connecting block 3 is connected to a connecting rod 4, through this rotation connection mode, the connecting rod 4 can be flexibly rotated in the connecting block 3, to achieve effective force transmission and direction change, the outer far side of the plurality of connecting rods 4 is rotatably connected to three connecting plates 5, this connection mode ensures that when the electric push rod 2 is extended and retracted, the connecting plate 5 can be driven by the connecting rod 4 to move smoothly, thereby realizing the mechanical action of the entire inner support device, the driving end of the electric push rod 2 is fixedly connected to a plurality of connecting blocks 6;

[0026] The inner rotation of the connecting block 2 6 is connected with the connecting rod 2 7. Through this rotating connection, the connecting rod 2 7 can rotate freely in the connecting block 2 6, thereby transmitting the power of the electric push rod 2 to the connecting plate 5. The outer sides of the far sides of the multiple connecting rods 2 7 are respectively rotatably connected to the inner top ends of the near sides of the multiple connecting plates 5. The left and right sides of the connecting plate 5 are fixedly connected with connecting plates 8. This sliding connection method allows the sliding rod 9 to slide smoothly in the connecting plate 8 to ensure that the inner support block 10 will not get stuck during the movement. The inner sliding connection of the connecting plate 8 has two sliding rods 9. This sliding connection method allows the sliding rod 9 to slide smoothly in the connecting plate 8 to ensure that the inner support block 10 will not get stuck during the movement. The far sides of the multiple sliding rods 9 are fixedly connected with three inner support blocks 10. The material of the inner support block 10 is rubber pads. The inner support block 10 of this rubber material can avoid damage to the inner wall of the muffler when it contacts it. The outer sleeve of the sliding rod 9 is provided with a telescopic component that provides elasticity.

[0027] The telescopic assembly includes a telescopic spring 11, which is sleeved on the outside of the sliding rod 9. One end of the telescopic spring 11 is fixedly connected to one side of the inner support block 10, and the other end of the telescopic spring 11 is fixedly connected to one side of the connecting plate 8. One side of the sliding rod 9 is fixedly connected to a baffle 12, and one side of the baffle 12 is in contact with one side of the connecting plate 8. The bottom end of the assembly plate 1 is fixedly connected to a working plate 13, which further enhances the stability of the entire device and provides a reliable foundation for the installation and operation of the device.

[0028] Reference Figures 4 to 6 , the four corners of the assembly plate 1 and the working plate 13 are provided with assembly holes 14, which provide a positioning reference for the installation of the device. The internal sliding connection of the assembly hole 14 is connected to the card rod 15 to realize the connection between the device and the external workbench. The external sliding connection of the card rod 15 is connected to the inside of the assembly plate 1. The internal movability of the card rod 15 is connected to the fixed rod 16. This movable connection method enables the fixed rod 16 to be flexibly operated in the card rod 15, which is convenient for the installation and disassembly of the device. The external fixed connection of the fixed rod 16 is connected to the limit plate 17, and the external movability of the limit plate 17 is connected to the inside of the card rod 15. This movable connection ensures that the limit plate 17 is in the position of the card rod 15. The interior can work normally and will not affect the operation of the fixing rod 16. The outer sleeve of the fixing rod 16 is provided with a strong spring 18. The inner bottom end of the card rod 15 is rotatably connected to the rotating ring 19. The outer part of the fixing rod 16 is movably connected to the inside of the rotating ring 19. The outer top of the fixing rod 16 is fixedly connected to two twisting blocks 20. The outer bottom end of the fixing rod 16 is fixedly connected to two baffles 21. The outer part of the baffle 21 is slidably connected to the inside of the assembly hole 14. The outer part of the baffle 21 contacts the bottom end of the working plate 13. This contact method ensures that the baffle 21 can effectively lock the device on the workbench to prevent the device from being displaced during operation.

[0029] Working Principle: When performing the muffler flange internal support operation, the electric push rod 2 is activated. The extension and retraction of the electric push rod 2 drives the movement of the external connecting block 2 6 on its driving end, thereby moving the connecting rod 2 7. Because the outer ends of the distal ends of the connecting rod 2 7 are respectively rotationally connected to the inner ends of the adjacent top ends of multiple connecting plates 5, and the outer distal ends of multiple connecting rods 1 4 are simultaneously rotationally connected to the three connecting plates 5, and connecting rod 1 4 is rotationally connected to the connecting block 1 3 fixed to the outer bottom end of the electric push rod 2, when the electric push rod 2 is extended or retracted, the linkage between connecting rod 1 4 and connecting rod 2 7 drives the movement of the connecting plates 5. The connecting plates 8 fixed to the left and right sides of the connecting plates 5 move with the connecting plates 5, and the sliding rods 9 slidably connected to the connecting plates 8 also move accordingly. The inner support block 10 fixedly connected to the far side of the sliding rod 9 moves outward or inward under the drive of the sliding rod 9. With the assistance of the elastic force of the telescopic spring 11, the inner support block 10 can better fit the inner wall of the muffler and perform an internal support operation on the muffler. The telescopic spring 11 can make the inner support block 10 support the inner wall of the muffler more evenly.

[0030] When the device needs to be installed, first, assembly holes 14 are opened on the workbench at the four corners of the assembly plate 1 and the work plate 13. The clamping rod 15 is placed into the assembly hole 14. At this time, the clamping rod 15 slides inside the assembly hole 14 and the assembly plate 1. Then press the clamping rod 15 slightly and twist the twisting block 20. The twisting block 20 drives the fixed rod 16 to rotate. When the fixed rod 16 rotates, the baffle rod 21 fixedly connected to its external bottom end also rotates, so that the position of the baffle rod 21 and the assembly hole 14 are staggered. Under the elastic force of the strong spring 18, the limit plate 17 on the fixed rod 16 will be displaced, so that the baffle rod 21 is tightly clamped in the assembly hole 14, realizing the rapid installation of the device on the workbench.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flange inner support device for automobile muffler production, comprising an assembly plate (1), characterized in that: The top of the assembly plate (1) is fixedly connected to an electric push rod (2), the outer bottom end of the electric push rod (2) is fixedly connected to a plurality of connecting blocks (3), the inner side of the connecting block (3) is rotatably connected to a connecting rod (4), the outer side of the plurality of connecting rods (4) is rotatably connected to three connecting plates (5), the driving end of the electric push rod (2) is fixedly connected to a plurality of connecting blocks (6), the inner side of the connecting block (6) is rotatably connected to a connecting rod (7), the left and right sides of the connecting plate (5) are fixedly connected to connecting plates (8), the inner side of the connecting plate (8) is slidably connected to two sliding rods (9), the outer side of the plurality of sliding rods (9) is fixedly connected to three inner support blocks (10), the outer side of the sliding rod (9) is provided with a telescopic component that provides elastic force, and the bottom end of the assembly plate (1) is fixedly connected to a working plate (13).

2. The flanging inner support device for automobile muffler production according to claim 1, characterized in that: The four corners of the assembly plate (1) and the working plate (13) are each provided with an assembly hole (14); the interior of the assembly hole (14) is slidably connected to a clamping rod (15); the interior of the clamping rod (15) is movably connected to a fixing rod (16); the exterior of the fixing rod (16) is fixedly connected to a limiting disk (17); the exterior of the fixing rod (16) is sleeved with a strong spring (18); the interior bottom end of the clamping rod (15) is rotatably connected to a rotating ring (19); the exterior bottom end of the fixing rod (16) is fixedly connected to two blocking rods (21).

3. The flanging inner support device for automobile muffler production according to claim 1, characterized in that: The telescopic assembly includes a telescopic spring (11), which is sleeved on the outside of the sliding rod (9), one end of the telescopic spring (11) is fixedly connected to one side of the inner support block (10), and the other end of the telescopic spring (11) is fixedly connected to one side of the connecting plate (8).

4. The flanging inner support device for automobile muffler production according to claim 1, characterized in that: The outer portions of the far sides of the plurality of connecting rods (7) are rotatably connected to the inner portions of the top ends of the near sides of the plurality of connecting plates (5), and the material of the inner support block (10) is a rubber pad.

5. The flanging inner support device for automobile muffler production according to claim 1, characterized in that: One side of the sliding rod (9) is fixedly connected to a baffle (12), and one side of the baffle (12) is in contact with one side of the connecting plate (8).

6. The flanging inner support device for automobile muffler production according to claim 2, characterized in that: The outside of the clamping rod (15) is slidably connected to the inside of the assembly plate (1), and the outside of the blocking rod (21) is slidably connected to the inside of the assembly hole (14).

7. The flanging inner support device for automobile muffler production according to claim 2, characterized in that: The outer portion of the fixing rod (16) is movably connected to the inner portion of the rotating ring (19), and the outer portion of the limiting plate (17) is movably connected to the inner portion of the clamping rod (15).

8. The flanging inner support device for automobile muffler production according to claim 2, characterized in that: The outer top end of the fixing rod (16) is fixedly connected to two twisting blocks (20), and the outer portion of the blocking rod (21) is in contact with the bottom end of the working plate (13).

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