A feeding device for stamping a flange plate of a car muffler

Abstract

The utility model discloses a kind of feeding devices for automobile muffler flange plate stamping, including stamping lower die seat, the upper end of the stamping lower die seat is fixedly connected with lower die plate, the upper end of the lower die plate is provided with auxiliary plate, the auxiliary plate is provided with two and symmetrically fixedly connected with the two sides of the lower die plate, the upper end of the auxiliary plate is fixedly connected with stabilizing plate;The utility model is through the cooperation of pressure block, elastic pad and first spring, elastic pad is always closely attached with material plate, is stably positioned to it, makes the position of material plate in moving process effectively controlled, avoid the inaccuracy of stamping due to position deviation, and then reduce the burr produced due to uneven stamping, simultaneously utilize the cooperation of blanking groove and discharge groove to make the die of stamping forming can smoothly pass through discharge passage, avoid the contact and friction of die and discharge passage, reduce the burr produced due to friction, improve the stamping quality of flange plate.

Description

Technical Field

[0001] This utility model relates to the field of flange stamping technology, specifically a feeding device for stamping automotive muffler flanges. Background Technology

[0002] In the construction of an automotive muffler, the flange plays a crucial role. It is a key component connecting various parts of the muffler. It not only needs to withstand certain pressure and vibration, but also needs to ensure the sealing of the connection to prevent gas leakage, thereby ensuring that the muffler can perform its noise reduction function normally. Therefore, the quality and precision of the flange are directly related to the performance and service life of the automotive muffler. In order to meet the requirements of automotive manufacturing for high quality and high precision flanges, every step in the production process needs to be strictly controlled, among which the stamping and forming process is of paramount importance.

[0003] However, during the stamping production of automotive muffler flanges, burrs are often generated. Due to the high pressure and shear force on the material during stamping, and the scraping and friction that can occur during the feeding process of the forming die, burrs are easily generated at the edges of the die. These burrs not only affect the appearance quality of the flange, but more importantly, they may scratch other parts or cause poor sealing during assembly, thus affecting the performance of the entire muffler. To address this, we propose a feeding device for stamping automotive muffler flanges. Utility Model Content

[0004] One of the technical problems to be solved by this application is: to solve the problem of burrs generated on automotive muffler flanges due to scraping and friction during the stamping and feeding process.

[0005] To solve the above-mentioned technical problems, this application provides a feeding device for stamping automotive muffler flanges, including a stamping lower die base. A lower template is fixedly connected to the upper end of the stamping lower die base. An auxiliary plate is provided at the upper end of the lower template. Two auxiliary plates are provided and symmetrically fixedly connected to both sides of the lower template. A stabilizing plate is fixedly connected to the upper end of the auxiliary plate. Square grooves are provided on both sides of the stabilizing plate. Rotating gears are movably connected to both ends of the inner side of the square grooves. A linkage chain is movably connected to the outer side of the rotating gears. A connecting plate is fixedly connected to the outer side of the linkage chain. A connecting column is fixedly connected to one side surface of the connecting plate. A first spring is fixedly connected to one end of the connecting column. A pressure block is fixedly connected to one end of the first spring.

[0006] Preferably, a retractable rod is fixedly connected to one side surface of the pressure block, one end of the retractable rod is fixedly connected to one side surface of the connecting column, limit posts are fixedly connected to both sides of the connecting column, and an elastic pad is fixedly connected to the outer side of the pressure block.

[0007] Preferably, the square groove has limit plates on both sides inside, and two limit plates are fixedly connected to one side inside the square groove. The two limit plates are arranged opposite to each other, and a sliding groove is provided between the two limit plates. The limit post is movably arranged inside the sliding groove, and the two ends of the limit plate are rounded.

[0008] Preferably, a rotating rod is fixedly connected to the inner side of the rotating gear, the rotating rod passes through one end of the stabilizing plate, and a linkage disc is fixedly connected to both sides of the rotating rod, and a linkage rod is movably connected to one side of the linkage disc.

[0009] Preferably, the auxiliary plate has three movable grooves on its inner side. A movable rod is movably connected to the inner side of each movable groove. A second spring is fixedly connected to one side of the movable rod. A positioning rod is provided inside the second spring. One end of the positioning rod is fixedly connected to one side of the movable rod.

[0010] Preferably, a positioning groove is provided on one side of the auxiliary plate, and the other end of the second spring fixed on one side of the movable rod is fixedly connected to the inside side of the positioning groove. The positioning rod inside the second spring is movably connected to the inside of the positioning groove. A material plate is provided on one side of the auxiliary plate, and one side of the movable rod is in contact with one side of the material plate.

[0011] Preferably, a material feeding groove is provided on one side surface of the lower template, and a material discharge groove is provided on one side surface of the stamping lower die base. The material feeding groove and the material discharge groove are interconnected. A guide post is fixedly connected to one side surface of the stamping lower die base, and an upper stamping die is movably connected to one side of the guide post. An upper die punch is fixedly connected to the lower end of the upper stamping die.

[0012] This utility model has at least the following beneficial effects: This invention utilizes a pressure block, an elastic pad, and a first spring to ensure that the elastic pad remains in close contact with the material plate during transportation, providing stable positioning and effectively controlling the material plate's position during movement. This prevents inaccurate stamping due to positional deviation, thereby reducing burrs caused by uneven stamping. Simultaneously, the combined use of the feeding groove and the discharge groove allows the stamping die to pass smoothly through the discharge channel, effectively avoiding contact and friction between the die and the discharge channel. This significantly reduces burrs caused by friction and improves the stamping quality of the flange. This invention, through the cooperation of a linkage chain and a rotating gear, and the stable movement of the limiting post within the sliding groove between the limiting plates, ensures that the pressure block and the elastic pad can move synchronously with the material plate, achieving continuous and stable positioning of the material plate. Simultaneously, the cooperation of the movable rod and the second spring further stabilizes the movement trajectory of the material plate, enabling it to be transported smoothly and accurately to the stamping position, achieving precise stamping results. The cooperation of the feeding chute and the discharge chute reduces the potential impact on forming quality caused by poor material discharge, thus improving the overall efficiency and stability of flange stamping production. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention from a right-side view. Figure 2 This is a three-dimensional structural diagram of the present invention from a rear-view perspective; Figure 3 This is a three-dimensional structural diagram of the present invention from a lower viewpoint; Figure 4 This is an enlarged three-dimensional structural diagram of the present invention from the left view. Figure 5 This utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of region A in the middle; Figure 6 This utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of region B in the middle; Figure 7 This is a three-dimensional structural diagram of the present invention from a top view. Figure 8 This utility model Figure 7 Enlarged schematic diagram of the three-dimensional structure of region C.

[0014] In the diagram: 1. Lower stamping die base; 2. Lower template; 3. Auxiliary plate; 4. Stabilizing plate; 5. Square slot; 6. Rotating gear; 7. Linkage chain; 8. Connecting plate; 9. Connecting column; 10. First spring; 11. Pressure block; 12. Limiting column; 13. Retraction rod; 14. Elastic pad; 15. Limiting plate; 16. Sliding groove; 17. Material plate; 18. Movable groove; 19. Movable rod; 20. Positioning groove; 21. Second spring; 22. Positioning rod; 23. Unloading groove; 24. Discharge groove; 25. Rotating rod; 26. Linkage disc; 27. Linkage rod; 28. Guide column; 29. ​​Upper stamping die; 30. Upper die punch. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 This utility model provides a technical solution: a feeding device for stamping automotive muffler flanges, including a stamping lower die base 1, a lower template 2 fixedly connected to the upper end of the stamping lower die base 1, an auxiliary plate 3 provided at the upper end of the lower template 2, two auxiliary plates 3 provided and symmetrically fixedly connected to both sides of the lower template 2, a stabilizing plate 4 fixedly connected to the upper end of the auxiliary plate 3, square grooves 5 opened on both sides of the stabilizing plate 4, rotating gears 6 movably connected to both ends of the inner side of the square grooves 5, a linkage chain 7 movably connected to the outer side of the rotating gears 6, a connecting plate 8 fixedly connected to the outer side of the linkage chain 7, a connecting post 9 fixedly connected to one side of the connecting plate 8, a first spring 10 fixedly connected to one end of the connecting post 9, and a pressure block 11 fixedly connected to one end of the first spring 10. When the rotating gears 6 rotate, they drive the linkage chain 7 to rotate synchronously, and at the same time drive the connecting plates 8 fixedly connected to one side of each small node in the linkage chain 7 to move synchronously, and the whole device moves synchronously with the material plate 17.

[0017] A retractable rod 13 is fixedly connected to one side surface of the pressure block 11. One end of the retractable rod 13 is fixedly connected to one side surface of the connecting column 9. Limiting columns 12 are fixedly connected to both sides of the connecting column 9. An elastic pad 14 is fixedly connected to the outer side of the pressure block 11. When rotated to the lower end, one side of the elastic pad 14 is in contact with the upper side of the material plate 17. When the elastic pad 14 is squeezed, it will deform, which will increase the contact area between the elastic pad 14 and the material plate 17, enhance the use effect, and at the same time prevent the pressure block 11 from squeezing and deforming the material plate 17. While in contact, the first spring 10 is used to stably position the material plate 17.

[0018] Limiting plates 15 are provided on both sides of the inside of the square groove 5. Two limiting plates 15 are fixedly connected to one side of the inside of the square groove 5. The two limiting plates 15 are arranged opposite each other, and a sliding groove 16 is provided between the two limiting plates 15. The limiting post 12 is movably arranged inside the sliding groove 16. The limiting plates 15 at the upper and lower ends of the limiting post 12 have a limiting effect on the limiting post 12, ensuring the stability of the moving trajectory of the connecting plate 8 and the connecting post 9, thereby realizing the stable movement of the pressure block 11 and the elastic pad 14, avoiding the situation where the movement is misaligned and the stability effect is poor. The corners of the two ends of the limiting plate 15 are rounded. The rounded corner design is conducive to the limiting post 12 entering the interior of the sliding groove 16 while rotating.

[0019] A rotating rod 25 is fixedly connected to the inner side of the rotating gear 6. The rotating rod 25 passes through one end of the stabilizing plate 4. A linkage disc 26 is fixedly connected to both sides of the rotating rod 25. A linkage rod 27 is movably connected to one side of the linkage disc 26. One end of the linkage rod 27 is used to connect to an external feeding device to ensure that the feeding rate is the same as the rotation rate of the linkage disc 26. While feeding, the linkage rod 27 is driven to move in conjunction with the linkage disc 26. While the linkage disc 26 is rotating, it drives the rotating rod 25 to rotate synchronously, and the entire rotating gear 6 and related components rotate synchronously.

[0020] The inner side of the auxiliary plate 3 is provided with a movable groove 18, and there are three movable grooves 18. A movable rod 19 is movably connected to the inner side of the movable groove 18. A second spring 21 is fixedly connected to one side of the movable rod 19. A positioning rod 22 is provided inside the second spring 21. One end of the positioning rod 22 is fixedly connected to one side of the movable rod 19. The second spring 21 is used to retract the movable rod 19, so that one side of the movable rod 19 always exerts a force in the placement direction of the material plate 17, stabilizing the movement trajectory of the material plate 17.

[0021] A positioning groove 20 is provided on one side of the auxiliary plate 3. The other end of the second spring 21, which is fixed on one side of the movable rod 19, is fixedly connected to the inside side of the positioning groove 20. The positioning rod 22 inside the second spring 21 is movably connected to the inside of the positioning groove 20. A material plate 17 is provided on one side of the auxiliary plate 3. One side of the movable rod 19 and one side of the material plate 17 are in contact with each other. The movable rod 19 stabilizes the moving direction of the material plate 17 from one side of the material plate 17.

[0022] A material feeding groove 23 is provided on one side surface of the lower die plate 2, and a material discharge groove 24 is provided on one side surface of the stamping lower die base 1. The material feeding groove 23 and the material discharge groove 24 are interconnected. The upper end of the material feeding groove 23 is adapted to the stamping mold box. The lower end of the material feeding groove 23 is larger than the upper end of the material feeding groove 23, and the whole is gradually expanding. There are two material discharge grooves 24, and their sizes are adapted to the stamped finished products. The whole is rectangular, which effectively avoids the stamping mold from contacting the material discharge channel and causing burrs due to friction. A guide post 28 is fixedly connected to one side surface of the stamping lower die base 1. A stamping upper die 29 is movably connected to one side of the guide post 28. An upper die punch 30 is fixedly connected to the lower end of the stamping upper die 29. The guide post 28 stabilizes the stamping direction. The stamping upper die 29 and the upper die punch 30 cooperate with each other to achieve the stamping effect.

[0023] Before the entire device is put into operation, one end of the linkage rod 27 is connected to an external feeding device. The linkage rod 27 drives the linkage disc 26 to rotate, which in turn drives the rotating rod 25 to rotate, thereby causing the rotating gear 6 to rotate synchronously. As the rotating gear 6 drives the linkage chain 7 to move, the connecting plate 8 on the linkage chain 7 moves accordingly. The connecting plate 8 drives the pressure block 11 and the elastic pad 14 to move with the material plate 17 through the connecting column 9. The elastic pad 14 is in contact with the material plate 17 and the first spring 10 is used to stabilize the material plate 17 from the top, preventing the material plate 17 from fluctuating due to the pressure of the stamping. At the same time, the limiting columns 12 on both sides of the connecting column 9 move in the sliding groove 16 between the limiting plates 15 to ensure the stable movement of the pressure block 11 and the elastic pad 14. The movable rod 19 always exerts a force on the material plate 17 under the action of the second spring 21 to stabilize the material plate. The trajectory of the 17 movement avoids inaccurate stamping caused by positional deviation, thereby reducing burrs caused by uneven stamping. After the material plate 17 is stably conveyed to the stamping position, the upper stamping die 29, guided by the guide column 28, works in conjunction with the upper die punch 30 to stamp the material plate 17. The formed flange is smoothly discharged through the material unloading groove 23 and the material discharge groove 24. The upper end of the material unloading groove 23 is adapted to the stamping die box, and the lower end of the material unloading groove 23 is larger than the upper end of the material unloading groove 23, with the whole gradually expanding shape. There are two material discharge grooves 24, and their sizes are adapted to the stamped finished products. The whole is rectangular, which effectively avoids the stamping die and the material discharge channel from contact, thus avoiding the generation of burrs caused by friction. The overall efficiency and stability of flange stamping production are improved.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for stamping automotive muffler flanges, comprising a stamping lower die base (1), characterized in that: The upper end of the stamping die base (1) is fixedly connected to the lower template (2). The upper end of the lower template (2) is provided with an auxiliary plate (3). Two auxiliary plates (3) are provided and are fixedly connected to the two sides of the lower template (2) in a symmetrical manner. The upper end of the auxiliary plate (3) is fixedly connected to a stabilizing plate (4). Both sides of the stabilizing plate (4) are provided with square grooves (5). Both ends of the inner side of the square grooves (5) are movably connected to rotating gears (6). The outer side of the rotating gears (6) is movably connected to a linkage chain (7). The outer side of the linkage chain (7) is fixedly connected to a connecting plate (8). One side surface of the connecting plate (8) is fixedly connected to a connecting column (9). One end of the connecting column (9) is fixedly connected to a first spring (10). One end of the first spring (10) is fixedly connected to a pressure block (11).

2. The feeding device for stamping automotive muffler flanges according to claim 1, characterized in that: A retractable rod (13) is fixedly connected to one side surface of the pressure block (11), one end of the retractable rod (13) is fixedly connected to one side surface of the connecting column (9), and limit posts (12) are fixedly connected to both sides of the connecting column (9). An elastic pad (14) is fixedly connected to the outside of the pressure block (11).

3. The feeding device for stamping automotive muffler flanges according to claim 2, characterized in that: Limiting plates (15) are provided on both sides of the inside of the square groove (5). Two limiting plates (15) are fixedly connected to one side of the inside of the square groove (5). The two limiting plates (15) are arranged opposite to each other. A sliding groove (16) is provided between the two limiting plates (15). The limiting post (12) is movably arranged inside the sliding groove (16). The two ends of the limiting plate (15) are rounded.

4. A feeding device for stamping automotive muffler flanges according to claim 3, characterized in that: A rotating rod (25) is fixedly connected to the inner side of the rotating gear (6). The rotating rod (25) passes through one end of the stabilizing plate (4). A linkage disc (26) is fixedly connected to both sides of the rotating rod (25). A linkage rod (27) is movably connected to one side of the linkage disc (26).

5. A feeding device for stamping automotive muffler flanges according to claim 1, characterized in that: The auxiliary plate (3) has an inner side with a movable groove (18), and there are three movable grooves (18). A movable rod (19) is movably connected to the inner side of the movable groove (18). A second spring (21) is fixedly connected to one side of the movable rod (19). A positioning rod (22) is provided inside the second spring (21). One end of the positioning rod (22) is fixedly connected to one side of the movable rod (19).

6. A feeding device for stamping automotive muffler flanges according to claim 5, characterized in that: A positioning groove (20) is provided on one side of the auxiliary plate (3). The other end of the second spring (21) fixed on one side of the movable rod (19) is fixedly connected to the inside side of the positioning groove (20). The positioning rod (22) inside the second spring (21) is movably connected to the inside of the positioning groove (20). A material plate (17) is provided on one side of the auxiliary plate (3). One side of the movable rod (19) and one side of the material plate (17) are in contact with each other.

7. A feeding device for stamping automotive muffler flanges according to claim 6, characterized in that: The lower template (2) has a material feeding groove (23) on one side surface, and the stamping lower die base (1) has a material discharge groove (24) on one side surface. The material feeding groove (23) and the material discharge groove (24) are interconnected. A guide post (28) is fixedly connected to one side surface of the stamping lower die base (1). An upper stamping die (29) is movably connected to one side of the guide post (28). An upper die punch (30) is fixedly connected to the lower end of the upper stamping die (29).

Images