Machining die for exhaust system cone

Abstract

The utility model discloses a machining die for an exhaust system cone, relates to the field of automobile part machining equipment, and discloses the machining die for the exhaust system cone to solve the technical problems that in the prior art, an existing rotary cutting technology mainly adopts single-procedure machining, and machining efficiency is high. The problems that in the prior art, a plurality of dies and a plurality of machines and hydraulic press machines need to be matched to achieve the multi-step technology, so that the procedures are numerous, and the number of workers is large are solved, and the edge cutting procedure 1 is completed through cooperative work of a first shearing component and a second shearing component. And then, the first cutting-off component and the second cutting-off component are matched with each other, so that the second pipe opening cutting process is achieved. Compared with the prior art, the stamping process is obviously optimized. The two core processes of edge cutting and pipe orifice cutting are combined on the same die frame and can be completed only by using one rotary cutter. The optimization not only improves the production efficiency, but also saves time, equipment and labor cost.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts processing equipment, and particularly relates to a processing die for an exhaust system cone. Background Technique

[0002] In the field of metal processing, the stamping process, as a common processing method, is widely used in multiple production links. Its typical processes include blanking, drawing, trimming, flanging, punching, and hole flanging, etc. Among them, the rotary cutting process in the trimming process shows different characteristics. It mainly drives the parts to be processed through a rotating device and uses a tool for continuous cutting operations. That is, through the drive of the upper and lower dies, the lower platform performs left-right reciprocating cutting.

[0003] However, the existing rotary cutting processes are mainly single-process processing. Each process is a set of dies, and each set of dies uses a press / one person. Moreover, the existing technology requires 6 sets of dies and 6 mechanical and hydraulic presses to cooperate to complete the above multi-step processes. Not only are the processes numerous, but also many dies and equipment are used, and the die development cost is relatively high, and a large number of personnel are occupied. Content of the Utility Model

[0004] In order to solve the problems existing in the prior art that the existing rotary cutting processes are mainly single-process processing, and the existing technology requires multiple sets of dies and multiple mechanical and hydraulic presses to cooperate to complete the above multi-step processes, resulting in numerous processes and a large number of personnel occupied, this application provides a processing die for an exhaust system cone to solve the above problems.

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

[0006] A processing die for an exhaust system cone includes a press. The press includes an upper workbench and a lower workbench. An upper die assembly is arranged at the bottom of the upper workbench, and a lower die assembly corresponding to the upper die assembly is arranged at the top of the lower workbench. Moreover, the lower die assembly is rotatably connected to the lower workbench;

[0007] The upper die assembly includes an upper die base. A first shearing part and a first cutting part are arranged on the bottom surface of the upper die base. The lower die assembly includes a lower die base. A second shearing part and a second cutting part are arranged on the top surface of the lower die base. The first shearing part and the first cutting part are vertically aligned with the second shearing part and the second cutting part respectively.

[0008] As a further improvement of the utility model, a limiting part is further arranged between the upper die assembly and the lower die assembly.

[0009] As a further improvement of the present utility model, the limiting component includes a fixed column, an upper limiting column and a lower limiting column. The fixed column is arranged on the bottom surface of the upper die base, the upper limiting column is arranged on the bottom surface of the fixed column, and the lower limiting column is arranged on the top surface of the lower die base and is vertically aligned with the upper limiting column.

[0010] As a further improvement of the present utility model, the first shearing component includes a first fixed plate, a shearing punch, a first blank holding block and a first floating pull rod. The first fixed plate is connected to the bottom surface of the upper die base. The shearing punch is arranged in a through hole formed in the first fixed plate, and the shearing punch is connected to the bottom surface of the upper die base. The upper part of the first floating pull rod is arranged in a first installation groove formed in the upper die base. The lower rod body of the first floating pull rod passes through the upper die base and the shearing punch and is connected to the top surface of the first blank holding block.

[0011] As a further improvement of the present utility model, the second shearing component includes a die holder fixed plate, a shearing die and a knockout block. The die holder fixed plate is arranged on the top surface of the lower die base. The shearing die is arranged on the top surface of the die holder fixed plate. The knockout block is located in a third installation groove formed inside the die holder fixed plate and the shearing die, and is connected to the connecting component. And a cavity is provided between the knockout block and the top surface of the lower die base.

[0012] As a further improvement of the present utility model, the second shearing component further includes a rubber pad. The rubber pad is arranged in the cavity between the knockout block and the top surface of the lower die base.

[0013] As a further improvement of the present utility model, the first cutting component includes a cutting punch, a cutting die, a second blank holding block and a second floating pull rod. The cutting punch is connected to the bottom surface of the upper die base. At least two second floating pull rods are provided and are respectively arranged in a second installation groove formed in the upper die base. The lower rod body of the second floating pull rod passes through the upper die base and is connected to the second blank holding block. The cutting die is arranged on the top surface of the cutting punch.

[0014] As a further improvement of the present utility model, the second cutting component includes a second fixed plate and a positioning block. The second fixed plate is arranged on the top surface of the lower die base. The positioning block is located in a third installation groove formed in the second fixed plate and is connected to the connecting component.

[0015] As a further improvement of the present utility model, the connecting component includes a connecting ejector rod, a connecting top plate and a transfer ejector rod. One end of the connecting ejector rod is rotatably connected to the lower workbench. The other end of the connecting ejector rod is connected to the connecting top plate. The connecting top plate is arranged inside a fourth installation groove formed in the lower die base. At least two transfer ejector rods are provided and are respectively connected to the knockout block and the positioning block.

[0016] Compared with the prior art, the technical solution provided by the utility model has the following advantages and effects:

[0017] 1. In this application, we use the collaborative work of the first shearing component and the second shearing component to complete the trimming process 1. Subsequently, the first cutting component and the second cutting component cooperate with each other to realize the pipe cutting process 2. Compared with the prior art, this application has significantly optimized the stamping process. The production process that originally required 6 sets of molds and 6 machines and hydraulic presses to complete, after our optimization, eliminated redundant processes such as trimming, flanging, punching, and flanging, and merged the two core processes of trimming and pipe cutting into the same set of mold frames, and only one rotary cutting machine is needed to complete it. This optimization not only improves production efficiency, but also saves time, equipment and labor costs.

[0018] 2. In this application, in order to ensure the accuracy of the total height dimension, an upper limit column is set on the bottom surface of the upper die seat, and a lower limit column is set on the bottom surface of the lower die seat. In the working state, the two will conflict with each other, thereby effectively limiting the total height dimension. Subsequently, the lower worktable of the press will drive the entire lower die assembly to rotate to cut off the excess waste of the part, completing process 1. When the part enters process 2 after trimming, the press will apply downward pressure while its lower worktable will drive the entire lower die part to rotate again, further cutting off the excess waste of the small pipe mouth of the part, thereby completing process 2. This process ensures that the parts ultimately meet the design size requirements. The design of this mold not only simplifies the operating process, but also significantly reduces the number of stamping equipment required and the scale of operators, thereby effectively improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 It is an axonometric drawing of the utility model.

[0021] Figure 2 It is the front view of the utility model.

[0022] Figure 3 It is a left view of the utility model.

[0023] Figure 4 yes Figure 3 Section view along the cutting symbol AA.

[0024] Figure 5 is Figure 4 The partial enlarged view of area A in the figure.

[0025] Figure 6 is the isometric view of the upper die assembly in the present utility model.

[0026] Figure 7 is the isometric view of the lower die assembly in the present utility model.

[0027] In the figure: 10. Upper die assembly; 110. Upper die base; 120. First shearing component; 1210. First fixing plate; 1220. Shearing punch; 1230. First blank holding block; 1240. First floating pull rod; 130. First cutting component; 1310. Cutting punch; 1320. Cutting die; 1330. Second blank holding block; 1340. Second floating pull rod; 20. Lower die assembly; 210. Lower die base; 220. Second shearing component; 2210. Die fixing plate; 2220. Shearing die; 2230. Ejector block; 2240. Rubber pad; 230. Second cutting component; 2310. Second fixing plate; 2320. Locating block; 30. Limiting component; 310. Fixed column; 320. Upper limiting column; 330. Lower limiting column; 40. Connecting component; 410. Connecting ejector rod; 420. Connecting top plate; 430. Transfer ejector rod. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Generally, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the 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 claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0030] It should be noted that: like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, in the description of the present application, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0032] In addition, in the description of the present application, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but they can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0033] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected to" are used, they 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] Embodiment:

[0035] A processing die for an exhaust system cone, including a press. The press includes an upper workbench and a lower workbench. An upper die assembly 10 is provided at the bottom of the upper workbench, and a lower die assembly 20 corresponding to the upper die assembly 10 is provided at the top of the lower workbench, and the lower die assembly 20 is rotatably connected to the lower workbench;

[0036] The upper die assembly 10 includes an upper die base 110. A first shearing part 120 and a first cutting part 130 are provided on the bottom surface of the upper die base 110. The lower die assembly 20 includes a lower die base 210. A second shearing part 220 and a second cutting part 230 are provided on the top surface of the lower die base 210. The first shearing part 120 and the first cutting part 130 are vertically aligned with the second shearing part 220 and the second cutting part 230 respectively.

[0037] It should be noted that when the press starts working, the relative position between the upper workbench and the lower workbench will be adjusted according to the preset stroke to ensure that the upper die assembly 10 and the lower die assembly 20 can be accurately aligned. During this process, since the lower die assembly 20 is rotatably connected to the lower workbench, this design allows the lower die assembly 20 to be finely adjusted during the processing to better adapt to exhaust system cones of different shapes and sizes. This flexibility greatly improves the versatility and adaptability of the die, enabling the same set of dies to process more types of products and reducing the production cost.

[0038] Specifically, the whole die is divided into a trimming process 1 and a cutting pipe orifice process 2. The two processes are designed to share the first shearing component 120 and the second cutting component 230 provided on the bottom surface of the upper die base 110, and the second shearing component 220 and the second cutting component 230 provided on the top surface of the lower die base 210. These components cooperate with the connecting component 40. When working, the press presses down to press the part onto the second shearing component 220, and the total height dimension is limited by the limiting component 30. Then, the lower workbench of the press drives the entire lower die part to rotate to cut off the excess waste of the part, completing the work of process 1. When the part after trimming is placed into process 2 and the press presses down, the part is pressed onto the second cutting component 230, and the lower workbench of the press drives the entire lower die part to rotate to cut off the excess waste of the small pipe orifice of the part, completing the work of process 2, so that the part finally meets the design dimension requirements. It reduces the number of stamping equipment occupied and the number of operators, and improves the production capacity.

[0039] Combined with the attached drawings of the specification Figures 1 - 7 As shown, a limiting component 30 is further provided between the upper die assembly 10 and the lower die assembly 20. The limiting component 30 includes a fixed column 310, an upper limiting column 320, and a lower limiting column 330. The fixed column 310 is provided on the bottom surface of the upper die base 110, the upper limiting column 320 is provided on the bottom surface of the fixed column 310, and the lower limiting column 330 is provided on the top surface of the lower die base 210 and is vertically aligned with the upper limiting column 320.

[0040] It is explained that the limiting component 30 can ensure the precise alignment of the upper die assembly 10 and the lower die assembly 20 during the closing and opening processes, and at the same time protect the die assembly from being damaged by excessive mechanical stress. Among them, the fixed column 310 serves as the basis of the entire limiting component 30, and it is firmly installed on the bottom surface of the upper die base 110, providing stable support for the upper limiting column 320. When the die is closed, the fixed column 310 not only ensures the overall stability of the upper die base 110, but also enables the upper limiting column 320 to accurately dock with the lower limiting column 330. Secondly, the upper limiting column 320 is designed to contact the lower limiting column 330 when the die is closed, thereby restricting the further downward movement of the upper die assembly 10. This design avoids the upper die assembly 10 pressing excessively on the lower die assembly 20, causing damage to the die or quality problems in the produced products. At the same time, by adjusting the distance between the upper limiting column 320 and the lower limiting column 330, the closing degree of the die can be accurately controlled to meet the production requirements of different products.

[0041] Specifically, the lower limiting column 330 is installed on the top surface of the lower die base 210 and is vertically aligned with the upper limiting column 320. This design ensures that the upper and lower limiting columns can accurately dock when the die is closed, forming an effective limiting structure. At the same time, the lower limiting column 330 also plays a role in supporting the lower die assembly 20, improving the overall stability of the die.

[0042] Combined with the accompanying drawings of the specification Figures 1 - 7 As shown, the first shearing component 120 includes a first fixed plate 1210, a shearing punch 1220, a first blank holding block 1230, and a first floating pull rod 1240. The first fixed plate 1210 is connected to the bottom surface of the upper die base 110. The shearing punch 1220 is disposed in the through hole opened in the first fixed plate 1210, and the shearing punch 1220 is connected to the bottom surface of the upper die base 110. The upper part of the first floating pull rod 1240 is disposed in the first installation groove opened in the upper die base 110. The lower rod body of the first floating pull rod 1240 passes through the upper die base 110 and the shearing punch 1220 and is connected to the top surface of the first blank holding block 1230. The second shearing component 220 includes a die holder fixed plate 2210, a shearing die 2220, and a knockout block 2230. The die holder fixed plate 2210 is disposed on the top surface of the lower die base 210. The shearing die 2220 is disposed on the top surface of the die holder fixed plate 2210. The knockout block 2230 is located in the third installation groove opened inside the die holder fixed plate 2210 and the shearing die 2220, and is connected to the connecting component 40, and a cavity is provided between the knockout block 2230 and the top surface of the lower die base 210.

[0043] It is explained that when the mold is in the closed state, the cutting punch 1220 of the first cutting component 120 is precisely aligned with the cutting die 2220 of the second cutting component 220 to form a cutting station. At this time, due to the traction of the first floating pull rod 1240, the first blank holder 1230 closely adheres to the upper surface of the material to be cut, ensuring that the material will not be displaced or deformed due to uneven force during the cutting process. As the upper die base 110 moves downward, the cutting punch 1220 begins to contact the cutting die 2220 and apply a cutting force. In this process, the ejector block 2230 plays a key supporting role. It is located inside the cutting die 2220 and is closely connected to the connecting component 40, enabling the cutting die 2220 to remain stable when subjected to the cutting force. When the cutting force reaches a certain level, the material to be cut is cut off under the combined action of the cutting punch 1220 and the cutting die 2220. Then, the entire lower die part is rotated by the lower workbench of the press to cut off the excess waste of the part, completing the work of process 1.

[0044] Specifically, the second cutting component 220 further includes a rubber pad 2240, and the rubber pad 2240 is arranged in the cavity between the ejector block 2230 and the top surface of the lower die base 210.

[0045] Combined with the attached drawings of the specification Figures 1 - 7 As shown, the first cutting-off component 130 includes a cutting-off punch 1310, a cutting-off die 1320, a second blank holder 1330, and a second floating pull rod 1340. The cutting-off punch 1310 is connected to the bottom surface of the upper die base 110. At least two second floating pull rods 1340 are provided and are respectively arranged in the second installation grooves formed in the upper die base 110. The lower rod body of the second floating pull rod 1340 passes through the upper die base 110 and is connected to the second blank holder 1330. The cutting-off die 1320 is arranged on the top surface of the cutting-off punch 1310. The second cutting-off component 230 includes a second fixing plate 2310 and a positioning block 2320. The second fixing plate 2310 is arranged on the top surface of the lower die base 210. The positioning block 2320 is located in the third installation groove formed in the second fixing plate 2310 and is connected to the connecting component 40.

[0046] It is explained that the first cutting member 130 and the second cutting member 230 work together to ensure accurate cutting and positioning during the stamping process. The cutting punch 1310 and the cutting die 1320 of the first cutting member 130 are in precise clearance fit to ensure accurate cutting of the metal sheet during the stamping process. When the trimmed part is placed in process 2 and the press is lowered, the part is pressed against the second cutting member 230, and the lower workbench of the press drives the entire lower die part to rotate, cutting off the excess waste material at the small tube opening of the part, completing the work of process 2, and making the part finally meet the design size requirements. It reduces the number of stamping equipment occupied and the number of operators, and improves the production capacity.

[0047] Specifically, the cutting punch 1310 is connected to the bottom surface of the upper die base 110, and the cutting function is realized through the up and down movement of the die. The second floating pull rod 1340 plays a role in stabilizing the cutting process. At least two second floating pull rods 1340 are provided to ensure that during the cutting process, the second pressure block 1330 can apply pressure smoothly, avoiding the movement or deformation of the metal sheet during the cutting process.

[0048] Combined with the accompanying drawings of the specification Figures 1 - 7 As shown, the connecting member 40 includes a connecting ejector rod 410, a connecting top plate 420, and a transfer ejector rod 430. One end of the connecting ejector rod 410 is rotatably connected to the lower workbench, the other end of the connecting ejector rod 410 is connected to the connecting top plate 420, the connecting top plate is arranged inside the fourth installation groove opened in the lower die base 210, and at least two transfer ejector rods 430 are provided and are respectively connected to the ejector block 2230 and the positioning block 2320.

[0049] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. 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 processing die for an exhaust system cone, comprising a press, the press comprising an upper workbench and a lower workbench, characterized in that: An upper mold assembly (10) is arranged at the bottom of the upper workbench, a lower mold assembly (20) corresponding to the upper mold assembly (10) is arranged at the top of the lower workbench, and the lower mold assembly (20) is rotatably connected to the lower workbench; The upper mold assembly (10) comprises an upper mold base (110), the bottom surface of which is provided with a first shearing component (120) and a first cutting component (130); the lower mold assembly (20) comprises a lower mold base (210), the top surface of which is provided with a second shearing component (220) and a second cutting component (230); the first shearing component (120) and the first cutting component (130) are vertically aligned with the second shearing component (220) and the second cutting component (230), respectively.

2. A processing mold for an exhaust system cone according to claim 1, characterized in that: A limiting component (30) is also provided between the upper mold assembly (10) and the lower mold assembly (20).

3. A processing die for an exhaust system cone according to claim 2, characterized in that: The limiting component (30) comprises a fixed column (310), an upper limit column (320) and a lower limit column (330); the fixed column (310) is arranged on the bottom surface of the upper die base (110); the upper limit column (320) is arranged on the bottom surface of the fixed column (310); and the lower limit column (330) is arranged on the top surface of the lower die base (210) and is vertically aligned with the upper limit column (320).

4. A processing die for an exhaust system cone according to claim 3, characterized in that: The first shearing component (120) includes a first fixed plate (1210), a shearing punch (1220), a first pressure block (1230) and a first floating pull rod (1240), wherein the first fixed plate (1210) is connected to the bottom surface of the upper die base (110), the shearing punch (1220) is arranged in a through hole opened in the first fixed plate (1210), and the shearing punch (1220) is connected to the bottom surface of the upper die base (110), the upper part of the first floating pull rod (1240) is arranged in a first mounting groove opened in the upper die base (110), and the lower rod body of the first floating pull rod (1240) passes through the upper die base (110) and the shearing punch (1220) and is connected to the top surface of the first pressure block (1230).

5. A processing die for an exhaust system cone according to claim 4, characterized in that: The second shearing component (220) comprises a die fixing plate (2210), a shearing die (2220) and a top material block (2230); the die fixing plate (2210) is arranged on the top surface of the lower die base (210); the shearing die (2220) is arranged on the top surface of the die fixing plate (2210); the top material block (2230) is located in a third mounting groove provided inside the die fixing plate (2210) and the shearing die (2220), and is connected to the connecting component (40); and a cavity is provided between the top material block (2230) and the top surface of the lower die base (210).

6. A processing die for an exhaust system cone according to claim 5, characterized in that: The second shearing component (220) further comprises a rubber pad (2240), and the rubber pad (2240) is arranged in a cavity between the top material block (2230) and the top surface of the lower die base (210).

7. A processing die for an exhaust system cone according to claim 6, characterized in that: The first cutting component (130) includes a cutting punch (1310), a cutting die (1320), a second pressure block (1330) and a second floating tie rod (1340). The cutting punch (1310) is connected to the bottom surface of the upper die base (110). At least two second floating tie rods (1340) are provided and are respectively provided in second mounting grooves provided in the upper die base (110). The lower rod body of the second floating tie rod (1340) passes through the upper die base (110) and is connected to the second pressure block (1330). The cutting die (1320) is provided on the top surface of the cutting punch (1310).

8. A processing die for an exhaust system cone according to claim 7, characterized in that: The second cutting component (230) comprises a second fixing plate (2310) and a positioning block (2320), wherein the second fixing plate (2310) is arranged on the top surface of the lower mold base (210), and the positioning block (2320) is located in a third installation groove opened in the second fixing plate (2310) and is connected to the connecting component (40).

9. A processing die for an exhaust system cone according to claim 8, characterized in that: The connecting component (40) comprises a connecting push rod (410), a connecting top plate (420) and a transfer push rod (430); one end of the connecting push rod (410) is rotatably connected to the lower workbench; the other end of the connecting push rod (410) is connected to the connecting top plate (420); the connecting top plate (420) is arranged inside a fourth mounting groove opened in the lower mold base (210); at least two transfer push rods (430) are arranged, and are respectively connected to the ejection block (2230) and the positioning block (2320).

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