Multi-station combined stamping die for exhaust system cone

Abstract

The utility model discloses a multi-station combined stamping die for a cone of an exhaust system, relates to the field of automobile part machining equipment, and can solve the problems that in the prior art, when a traditional single-process die is adopted for machining operation, necessary connection and coherence are lacked among all processes, and consequently equipment is increased and manpower resources are occupied. A trimming female die assembly, a drawing female die assembly and a flanging female die assembly are sequentially assembled on the bottom face of the upper die plate, a trimming male die assembly, a drawing male die assembly and a flanging male die assembly are correspondingly arranged on the top face of the lower die plate, and through cooperation of the parts, efficient operation of three procedures of drawing, trimming and flanging can be completed on a single die; multiple procedures in a traditional manufacturing process are simplified, the production cost is reduced, and the production efficiency is remarkably improved. In addition, all components of the mold can be conveniently disassembled and assembled, so that when parts need to be replaced or maintained, operation can be rapidly completed, and the downtime of a production line is shortened.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts processing equipment, in particular to a multi-station combined stamping die for an exhaust system cone. Background Art

[0002] Stamping technology is a metal processing method, which is based on the plastic deformation of metal. It uses molds and stamping equipment to apply pressure to the sheet material to make the sheet material plastically deform or separate, thereby obtaining parts (stamping parts) with certain shapes, sizes and performances. Stamping technology occupies an important position in the automobile body manufacturing process, especially automobile parts, because most of them have complex shapes, large structural dimensions, some are spatial curved surfaces, and high surface quality requirements, so the use of stamping processing methods to make these parts is incomparable to other processing methods.

[0003] In the existing automobile exhaust system cone processing, stamping technology is widely used, and the completion of the whole set of processing requires close cooperation of multiple processes. However, the currently commonly used stamping process mainly relies on single-process molds, that is, each process requires a set of independent molds, and each set of molds needs to be equipped with a press and an operator. This traditional single-process mold processing method has obvious problems: there is a lack of necessary continuity between the previous and next processing steps, which not only leads to excessive occupation of equipment and labor resources, but also significantly reduces production efficiency, and the high cost of molds further pushes up the overall processing cost. Utility Model Content

[0004] In order to solve the problem in the prior art that traditional single-process molds are used for processing operations, and the various processes lack the necessary connection and continuity, resulting in an increase in equipment and occupation of human resources, the present application provides an exhaust system cone multi-station combined stamping mold to solve the above problems.

[0005] In order to achieve the above purpose, the technical solution adopted in this application is:

[0006] An exhaust system cone multi-station combined stamping die, comprising a press, an upper die assembly, a lower die assembly and a blank, wherein the upper die assembly is connected to the press, and the bottom surface of the upper die assembly is arranged opposite to the top surface of the lower die assembly;

[0007] The upper die assembly comprises an upper die plate, and a trimming die component, a drawing die component and a flanging die component are sequentially arranged at the bottom of the upper die plate, and the trimming die component, the drawing die component and the flanging die component are all detachably connected to the bottom surface of the upper die plate;

[0008] The lower die assembly comprises a lower die support component and a lower die plate, wherein the lower die plate is arranged on the top of the lower die support component, and the top of the lower die plate is detachably connected with a trimming die component, a drawing die component and a flanging die component corresponding to the trimming die component, the drawing die component and the flanging die component;

[0009] The material sheet is arranged on the upper part of the drawing punch component.

[0010] As a further improvement of the present invention, the trimming die component comprises a first die fixing plate, the first die fixing plate is screwed to the bottom surface of the upper mold plate, and a trimming die is also provided on the first die fixing plate.

[0011] As a further improvement of the present invention, the drawing die component includes a second die fixing plate and a drawing die top plate, the second die fixing plate is screwed to the bottom surface of the upper template, and a drawing die is also provided on the second die fixing plate, wherein the drawing die top plate is arranged at the upper end of the drawing punch component.

[0012] As a further improvement of the present invention, the flanging die component includes a third die fixing plate, the third die fixing plate is screwed to the bottom surface of the upper mold plate, and a flanging die is also provided inside the third die fixing plate.

[0013] As a further improvement of the present invention, the trimming punch component includes a first fixed seat and a trimming punch, the first fixed seat is screwed on the top surface of the lower template, the trimming punch is arranged on the top surface of the first fixed seat, and cutting knives are symmetrically arranged on both sides of the first fixed seat along the long side of the lower template.

[0014] As a further improvement of the utility model, the drawing punch component includes a second fixed seat and a drawing punch, the second fixed seat is screwed on the top surface of the lower template, the drawing punch is arranged on the top surface of the second fixed seat, and a plurality of guide pins are arranged at the four corners of the top surface of the second fixed seat, and the drawing die is slidably sleeved on the plurality of guide pins for the top plate.

[0015] As a further improvement of the utility model, the flanging punch component includes a lower pad, a third fixed seat and a flanging punch, the lower pad is screwed to the top surface of the lower template, a plurality of guide pins are arranged at the four corners of the top surface of the lower pad, the third fixed seat is slidably sleeved on the guide pins, the flanging punch is fixed to the top surface of the lower pad, and is located in the mounting hole opened in the third fixed seat.

[0016] As a further improvement of the present invention, a guide assembly is further provided between the bottom surface of the upper template and the top surface of the lower template.

[0017] As a further improvement of the present invention, the guide assembly includes a guide sleeve and a guide column, and at least four of the guide sleeves and the guide columns are provided, wherein a plurality of the guide sleeves are provided at the four corners of the bottom surface of the upper template, and a plurality of the guide columns are provided at the four corners of the top surface of the lower template, and along the wide side direction of the upper template and the lower template, an upper support column and a lower support column are provided respectively between every two guide sleeves and between every two guide columns.

[0018] As a further improvement of the present invention, the lower mold support component includes a lower bottom plate, and a plurality of shims of equal height are arranged between the lower bottom plate and the lower mold plate.

[0019] Compared with the prior art, the technical solution provided by the utility model has the following advantages and effects:

[0020] 1. The bottom surface of the upper template is equipped with the trimming die assembly, the drawing die assembly and the flanging die assembly in sequence, while the top surface of the lower template is equipped with the trimming punch assembly, the drawing punch assembly and the flanging punch assembly. After the components are combined and configured, and they work together, the efficient operation of the three processes of drawing, trimming and flanging can be completed on a single mold. The specific operation process is as follows: First, the upper template is driven by a press to perform the drawing process, and the necessary pressure is applied to the drawing die assembly and the drawing punch assembly, so that the blank is punched into a preset shape; then the trimming process is entered, and the excess edge material on the blank is accurately removed by applying pressure to the trimming punch assembly and the trimming die assembly; finally, the flanging process is performed, and pressure is applied to the flanging punch assembly and the flanging die assembly to perform flanging on the trimmed blank to ensure that the final part fully meets the design size requirements. This operation process not only simplifies the multiple processes in the traditional manufacturing process, reduces production costs, but also significantly improves production efficiency. In addition, the design of the mold also takes into account the convenience of operation and ease of maintenance. The various components of the mold can be easily disassembled and assembled, so that when parts need to be replaced or repaired, the operation can be completed quickly, reducing the downtime of the production line. At the same time, the wear resistance and durability of the mold have also been fully considered. By selecting high-quality materials and fine processing technology, it is ensured that the mold can operate stably for a long time to meet the needs of large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 It is an axonometric drawing of the utility model.

[0023] Figure 2 It is the front view of the utility model.

[0024] Figure 3 It is the front view of the lower mold assembly in the utility model.

[0025] Figure 4 It is an axonometric view of the middle and lower die components of the utility model.

[0026] Figure 5 It is an axial view of the lower die assembly of the utility model without the sheet installed.

[0027] Figure 6 It is the front view of the upper die assembly in the utility model.

[0028] Figure 7 It is an axonometric view of the upper die assembly of the utility model.

[0029] In the figure: 10, upper die assembly; 110, upper die plate; 120, trimming die component; 121, first die fixing plate; 122, trimming die; 130, drawing die component; 131, second die fixing plate; 132, drawing die; 133, drawing die counter plate; 140, flanging die component; 141, third die fixing plate; 142, flanging die; 20, lower die assembly; 210, lower die support component; 211, lower bottom plate; 212, pad Iron; 220, lower template; 230, trimming punch component; 231, first fixed seat; 232, cutting knife; 233, trimming punch; 240, drawing punch component; 241, second fixed seat; 242, drawing punch; 250, flanging punch component; 251, lower pad; 252, third fixed seat; 253, flanging punch; 30, guide assembly; 310, guide sleeve; 320, guide column; 330, upper support column; 340, lower support column; 40, sheet. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Example:

[0037] A multi-station combined stamping die for an exhaust system cone, comprising a press, an upper die assembly 10, a lower die assembly 20 and a blank 40, wherein the upper die assembly 10 is connected to the press, and the bottom surface of the upper die assembly 10 is arranged opposite to the top surface of the lower die assembly 20; the upper die assembly 10 comprises an upper die plate 110, and a trimming die component 120, a drawing die component 130 and a flanging die component 140 are sequentially arranged at the bottom of the upper die plate 110, and the trimming die component 120, the drawing die component 130 and the flanging die component 140 are sequentially arranged at the bottom of the upper die plate 110. 40 are all detachably connected to the bottom surface of the upper mold plate 110; the lower mold assembly 20 includes a lower mold support component 210 and a lower mold plate 220, the lower mold plate 220 is arranged on the top of the lower mold support component 210, and the top of the lower mold plate 220 corresponds to the trimming die component 120, the drawing die component 130 and the flanging die component 140, and is also detachably connected with a trimming punch component 230, a drawing punch component 240 and a flanging punch component 250 in sequence; the sheet 40 is arranged on the upper part of the drawing punch component 240.

[0038] It is explained that the bottom surface of the upper mold assembly 10 and the top surface of the lower mold assembly 20 are arranged relative to each other, and the bottom surface of the upper mold plate 110 is equipped with the trimming die 122 assembly, the drawing die 132 assembly and the flanging die 142 assembly in sequence, while the top surface of the lower mold plate 220 is correspondingly equipped with the trimming punch 233 assembly, the drawing punch 242 assembly and the flanging punch 253 assembly. Through the cooperation of the above components, it is possible to achieve efficient operation of the three processes of drawing, trimming and flanging on a single mold. This operation process not only simplifies the multiple processes in the traditional manufacturing process, reduces production costs, but also significantly improves production efficiency. In addition, the design of the mold also takes into account the convenience of operation and the ease of maintenance. The various components of the mold can be easily disassembled and assembled, so that when parts need to be replaced or repaired, the operation can be completed quickly, reducing the downtime of the production line. At the same time, the wear resistance and durability of the mold have also been fully considered. By selecting high-quality materials and fine processing technology, it is ensured that the mold can operate stably for a long time to meet the needs of large-scale production.

[0039] Brief description of working principle:

[0040] First, the upper template 110 is driven by a press to perform the drawing process, and necessary pressure is applied to the drawing die 132 assembly and the drawing punch 242 assembly, so that the sheet 40 is punched into a preset shape; then the trimming process is entered, and the excess edge material on the sheet 40 is accurately removed by applying pressure to the trimming punch 233 assembly and the trimming die 122 assembly; finally, the flanging process is performed, and pressure is applied to the flanging punch 253 assembly and the flanging die 142 assembly to flanging the sheet 40 after trimming, so as to ensure that the final part fully meets the design size requirements.

[0041] Combined with the accompanying drawings Figure 1 , Figure 2 , Figure 6 and Figure 7 The trimming die component 120 includes a first die fixing plate 121 , which is screwed to the bottom surface of the upper mold plate 110 , and a trimming die 122 is also provided on the first die fixing plate 121 .

[0042] It is explained that the first die fixing plate 121 serves as the basis of the entire trimming die component 120 and plays a role of fixing and supporting. The first die fixing plate 121 is firmly mounted on the bottom surface of the upper mold plate 110 by screwing, ensuring the stability and reliability of the trimming die component 120 during the stamping process. The trimming die component 120 has a simple and clear structure, is easy to install and disassemble, and is convenient for replacement or maintenance when necessary.

[0043] Combined with the accompanying drawings Figure 1 , Figure 2 , Figure 6 and Figure 7 The drawing die component 130 includes a second die fixing plate 131 and a drawing die top plate 133. The second die fixing plate 131 is screwed to the bottom surface of the upper mold plate 110. A drawing die 132 is also provided on the second die fixing plate 131. The drawing die top plate 133 is arranged at the upper end of the drawing punch component 240.

[0044] It is explained that the main function of the drawing die component 130 is to stretch the metal sheet into a predetermined shape. The drawing die component 130 is mainly composed of a second die fixing plate 131, a drawing die 132 and a drawing die top plate 133, wherein the second die fixing plate 131 is the support base of the entire drawing die component 130, which is screwed to the bottom surface of the upper mold plate 110, ensuring the stability and reliability of the drawing die component 130 in the mold.

[0045] Specifically, the top plate 133 of the drawing die is arranged at the upper end of the drawing punch component 240, and together with the drawing punch component 240, it forms a forming space for the sheet to be stretched. During the stamping process, the drawing punch component 240 will move downward, pushing the sheet into the drawing die 132, while the top plate 133 of the drawing die supports and restricts the movement of the sheet. In this way, through the synergistic effect of the punch and the die, accurate stretching and forming of the sheet can be achieved.

[0046] In addition, the design of the drawing die component 130 also needs to take into account factors such as wear resistance, strength and rigidity. Since a large pressure and friction force will be generated during the stamping process, the drawing die component 130 needs to have sufficient wear resistance to ensure long-term stability. At the same time, in order to ensure the forming effect and the life of the mold, the drawing die component 130 also needs to have sufficient strength and rigidity.

[0047] Combined with the accompanying drawings Figure 1 , Figure 2 , Figure 6 and Figure 7 The flanging die component 140 includes a third die fixing plate 141 , which is screwed to the bottom surface of the upper mold plate 110 , and a flanging die 142 is also provided inside the third die fixing plate 141 .

[0048] It is explained that the fixing plate is screwed to the bottom surface of the upper template 110 by bolts, and the connection method is simple and reliable, and it is convenient to install and disassemble. During the flanging process, the flanging die component 140 cooperates with other components such as the upper template 110 and the lower template 220 to jointly realize the flanging operation of the material. The entire mold system ensures the smooth progress of the flanging process by accurately controlling the process parameters and process conditions, and realizes efficient and accurate product production.

[0049] Combined with the accompanying drawings Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The trimming punch component 230 includes a first fixed seat 231 and a trimming punch 233. The first fixed seat 231 is screwed on the top surface of the lower template 220. The trimming punch 233 is arranged on the top surface of the first fixed seat 231. Cutting knives 232 are also symmetrically arranged on both sides of the first fixed seat 231 along the long side of the lower template 220.

[0050] It is explained that since the trimming process forms a ring-shaped waste ring after trimming, in order to facilitate the removal of waste, two cutting knives 232 are specially designed on the left and right. After the cutting knives 232 and the trimming die 122 squeeze and cut the waste ring, the waste slides out of the working area, thereby improving work efficiency. Specifically, the cutting knives 232 are fixed on both sides of the first fixed seat 231 and are symmetrically arranged along the long side of the lower template 220, so that it can be ensured that during the stamping process, the cutting knives 232 can apply force stably and evenly, thereby avoiding the workpiece from being offset or deformed during the cutting process. In addition, the use of the cutting knife 232 in conjunction with the trimming punch 233 can achieve a more accurate stamping effect. During the stamping process, the trimming punch 233 first positions the workpiece, and then the cutting knife 232 performs the cutting operation, thereby ensuring that the cutting position of the workpiece is accurate and the edges are neat. This design not only improves the accuracy and efficiency of stamping, but also reduces the rate of defective products and improves the overall production quality.

[0051] Combined with the accompanying drawings Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The drawing punch component 240 includes a second fixed seat 241 and a drawing punch 242. The second fixed seat 241 is screwed on the top surface of the lower template 220. The drawing punch 242 is arranged on the top surface of the second fixed seat 241. A plurality of guide pins are also arranged at the four corners of the top surface of the second fixed seat 241. The drawing die 132 is slidably sleeved on the plurality of guide pins on the top plate.

[0052] It is explained that the second fixing seat 241 is fixed to the top surface of the lower mold plate 220 by screw connection. Such connection method not only ensures the firmness of the connection, but also facilitates disassembly and replacement when necessary. The screw connection method allows the fixing seat to adjust its position according to actual needs, thereby meeting different production needs. Among them, the multiple guide pins arranged at the four corners of the top surface of the second fixing seat 241 can play a role in positioning and guiding, ensuring the precise docking of the drawing punch 242 and the drawing die 132 to the top plate, and also enhancing the structural stability of the entire component. The drawing die 132 slides the top plate on multiple guide pins. Such a design allows the top plate to slide under the guidance of the guide pins, which not only ensures the smoothness of the sliding, but also improves the accuracy of the operation.

[0053] Combined with the accompanying drawings Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7The flanging punch component 250 includes a lower pad 251, a third fixed seat 252 and a flanging punch 253. The lower pad 251 is screwed on the top surface of the lower template 220. A plurality of guide pins are arranged at the four corners of the top surface of the lower pad 251. The third fixed seat 252 is slidably sleeved on the guide pins. The flanging punch 253 is fixed on the top surface of the lower pad 251 and is located in the mounting hole opened in the third fixed seat 252.

[0054] It is explained that the flanging convex mold component 250 is mainly composed of three parts: a lower pad 251, a third fixed seat 252 and a flanging convex mold 253. The parts cooperate with each other to realize the flanging function together. The lower pad 251 is the basis of the entire flanging convex mold component 250 and is fixed to the top surface of the lower mold plate 220 by screw connection to provide stable support for other parts. At the same time, the multiple guide pins arranged at the four corners of the top surface of the lower pad 251 not only play a role in positioning and guiding, but also ensure the stability and accuracy of the third fixed seat 252 during the sliding process. Among them, the third fixed seat 252 is the bearing component of the flanging convex mold 253. It is connected to the guide pins by sliding sleeves and can slide along the guide pins when needed, thereby realizing the adjustment and positioning of the flanging convex mold 253. This design method is not only convenient for operation, but also ensures the stability and accuracy of the flanging convex mold 253 during the working process.

[0055] Combined with the accompanying drawings Figure 1-Figure 7 A guide assembly 30 is also arranged between the bottom surface of the upper template 110 and the top surface of the lower template 220, and the guide assembly 30 includes a guide sleeve 310 and a guide column 320. At least four of the guide sleeves 310 and the guide column 320 are arranged, wherein a plurality of the guide sleeves 310 are arranged at the four corners of the bottom surface of the upper template 110, and a plurality of the guide columns 320 are arranged at the four corners of the top surface of the lower template 220. Along the wide side direction of the upper template 110 and the lower template 220, an upper support column 330 and a lower support column 340 are respectively arranged between every two of the guide sleeves 310 and between every two of the guide columns 320. The lower mold support component 210 includes a lower bottom plate 211, and a plurality of shims 212 of equal height are arranged between the lower bottom plate 211 and the lower template 220.

[0056] It is explained that in the above mold structure, the setting of the guide assembly 30 plays a guiding and positioning role. The coordinated use of the guide sleeve 310 and the guide column 320 enables the upper mold plate 110 and the lower mold plate 220 to be accurately docked when closed, ensuring the accuracy and stability of the mold. At the same time, the number of the guide sleeve 310 and the guide column 320 is set to at least four, and distributed at the four corners of the mold plate, which can effectively prevent the mold plate from being offset or tilted during the closing process, thereby improving the overall performance of the mold.

[0057] Specifically, in order to further enhance the stability and bearing capacity of the mold, an upper support column 330 and a lower support column 340 are respectively arranged between every two guide sleeves 310 and every two guide columns 320 along the wide side direction of the upper template 110 and the lower template 220. The arrangement of these support columns can effectively disperse the pressure and vibration generated by the mold during operation and prevent the template from being deformed or damaged. The lower mold support component 210 is composed of a lower base plate 211 and a plurality of shims 212 of equal height. The lower base plate 211 serves as a supporting base to ensure the stability of the mold. The arrangement of the shims 212 enables the lower template 220 to be stably placed on the lower base plate 211, and the equal height design of the shims 212 ensures the flatness of the mold and avoids the precision problem caused by uneven support.

[0058] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-station combined stamping die for an exhaust system cone, comprising a press, an upper die assembly (10), a lower die assembly (20) and a sheet (40), characterized in that: The upper die assembly (10) is connected to the press, and the bottom surface of the upper die assembly (10) is arranged opposite to the top surface of the lower die assembly (20); The upper die assembly (10) comprises an upper die plate (110), and a trimming die component (120), a drawing die component (130) and a flanging die component (140) are sequentially arranged at the bottom of the upper die plate (110); the trimming die component (120), the drawing die component (130) and the flanging die component (140) are all detachably connected to the bottom surface of the upper die plate (110); The lower die assembly (20) comprises a lower die support component (210) and a lower die plate (220); the lower die plate (220) is arranged on the top of the lower die support component (210); the top of the lower die plate (220) corresponds to the trimming die component (120), the drawing die component (130) and the flanging die component (140), and is also detachably connected with a trimming convex die component (230), a drawing convex die component (240) and a flanging convex die component (250) in sequence; The material sheet (40) is arranged on the upper part of the drawing punch component (240).

2. The exhaust system cone multi-station combined stamping die according to claim 1, characterized in that: The trimming die component (120) comprises a first die fixing plate (121), the first die fixing plate (121) being screwed to the bottom surface of the upper mold plate (110), and a trimming die (122) is also provided on the first die fixing plate (121).

3. The exhaust system cone multi-station combined stamping die according to claim 2, characterized in that: The drawing die component (130) comprises a second die fixing plate (131) and a drawing die top plate (133), wherein the second die fixing plate (131) is screwed to the bottom surface of the upper mold plate (110), and a drawing die (132) is also provided on the second die fixing plate (131), wherein the drawing die top plate (133) is arranged at the upper end of the drawing punch component (240).

4. The exhaust system cone multi-station combined stamping die according to claim 3, characterized in that: The flanging die component (140) comprises a third die fixing plate (141), the third die fixing plate (141) is screwed to the bottom surface of the upper mold plate (110), and a flanging die (142) is also provided inside the third die fixing plate (141).

5. The exhaust system cone multi-station combined stamping die according to claim 4, characterized in that: The trimming punch component (230) comprises a first fixed seat (231) and a trimming punch (233); the first fixed seat (231) is screwed onto the top surface of the lower template (220); the trimming punch (233) is arranged on the top surface of the first fixed seat (231); and cutting knives (232) are symmetrically arranged on both sides of the first fixed seat (231) along the long side of the lower template (220).

6. The exhaust system cone multi-station combined stamping die according to claim 5, characterized in that: The drawing punch component (240) comprises a second fixed seat (241) and a drawing punch (242); the second fixed seat (241) is screwed onto the top surface of the lower mold plate (220); the drawing punch (242) is arranged on the top surface of the second fixed seat (241); a plurality of guide pins are arranged at the four corners of the top surface of the second fixed seat (241); the drawing die top plate (133) is slidably sleeved on the plurality of guide pins.

7. The exhaust system cone multi-station combined stamping die according to claim 6, characterized in that: The flanging punch component (250) comprises a lower pad (251), a third fixed seat (252) and a flanging punch (253); the lower pad (251) is screwed onto the top surface of the lower template (220); a plurality of guide pins are arranged at the four corners of the top surface of the lower pad (251); the third fixed seat (252) is slidably sleeved on the guide pins; the flanging punch (253) is fixed onto the top surface of the lower pad (251) and is located in a mounting hole provided in the third fixed seat (252).

8. The exhaust system cone multi-station combined stamping die according to any one of claims 1 to 7, characterized in that: A guide assembly (30) is also provided between the bottom surface of the upper template (110) and the top surface of the lower template (220).

9. The exhaust system cone multi-station combined stamping die according to claim 8, characterized in that: The guide assembly (30) comprises a guide sleeve (310) and a guide column (320), wherein at least four of the guide sleeves (310) and at least four of the guide columns (320) are provided, wherein a plurality of the guide sleeves (310) are provided at the four corners of the bottom surface of the upper template (110), and a plurality of the guide columns (320) are provided at the four corners of the top surface of the lower template (220), and along the width direction of the upper template (110) and the lower template (220), an upper stop column (330) and a lower stop column (340) are provided respectively between every two of the guide sleeves (310) and between every two of the guide columns (320).

10. The exhaust system cone multi-station combined stamping die according to claim 9, characterized in that: The lower mold support component (210) comprises a lower base plate (211), and a plurality of shims of equal height are arranged between the lower base plate (211) and the lower mold plate (220).

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