Dustproof cover machining die

Abstract

The embodiment of the utility model provides a dust cover machining die, and relates to the technical field of dust cover machining. The dustproof cover machining die comprises a lower die base, a punching piece, an upper die base and an unloading piece, the lower die base is provided with a lower female die, and the lower female die is provided with a forming groove; the punching piece is arranged on the lower die base and penetrates through the lower female die, one end of the punching piece extends out of the bottom wall of the forming groove, and the punching piece is used for punching a workpiece; the upper die base and the lower die base are arranged at intervals, an upper male die is arranged on the side, close to the lower female die, of the upper die base, and a top punching hole is formed in the upper male die and corresponds to a punching piece. The discharging piece is movably arranged on the upper die base and arranged on the upper male die in a penetrating mode, one end of the discharging piece is arranged in the top punching hole, and the discharging piece is used for discharging waste in the top punching hole. The dustproof cover machining die can improve the machining efficiency and reduce the cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust cover processing technical field, specifically, relate to a dust cover processing die. BACKGROUND

[0002] Dust cover is a kind of ring cover structure, usually by thin metal plate stamping, fixed on the bearing one ring or washer, to prevent dust into the bearing interior space, affect bearing service life.

[0003] Dust cover processing has multiple processing procedures, but, currently needs to use different moulds or tooling to process respectively, leading to low processing efficiency, and high cost. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a dust cover processing die, it can improve processing efficiency and reduce cost.

[0005] The embodiment of the utility model is realized as follows:

[0006] First, the utility model provides a dust cover processing die, comprising:

[0007] Lower die holder, the lower die holder is provided with lower concave die, and the lower concave die is provided with forming groove;

[0008] Punching part, the punching part is arranged in the lower die holder, and is arranged in the lower concave die, one end of the punching part is arranged in the bottom wall of the forming groove, and the punching part is used for punching workpiece;

[0009] Upper die holder, the upper die holder is arranged at intervals with the lower die holder, the upper die holder is provided with upper convex die on the side close to the lower concave die, and the upper convex die is provided with top punch hole, and the top punch hole is corresponding with the punching part;And

[0010] Discharge part, the discharge part is movably arranged in the upper die holder, and is arranged in the upper convex die, one end of the discharge part is arranged in the top punch hole, and the discharge part is used for discharging waste in the top punch hole.

[0011] In optional implementation, the lower concave die includes die body and stretching lower die, the stretching lower die is provided with sliding groove, the die body is slidably arranged in the sliding groove, and the die body is provided with the forming groove, and the punching part is arranged in the die body.

[0012] In optional implementation, the dust cover processing die further includes material lifting structure, the material lifting structure is movably arranged in the lower die holder, and one end of the material lifting structure is abutted with the die body.

[0013] In an optional embodiment, the ejection structure comprises an ejection rod and a mounting plate, the mounting plate is located on a side of the lower die seat away from the stretching lower die, the ejection rod is arranged in the lower die seat, and one end of the ejection rod is connected with the mounting plate, and the other end of the ejection rod is in abutment with the concave die body.

[0014] In an optional embodiment, the side wall of the chute is provided with a limiting groove, and the side wall of the concave die body is provided with a limiting protrusion, the limiting protrusion is matched with the limiting groove.

[0015] In an optional embodiment, the upper punch is further provided with a mounting groove on a side close to the upper die seat, the bottom wall of the mounting groove is provided with the ejecting hole, and the ejecting hole penetrates through the upper punch away from the upper die seat;

[0016] The ejection structure comprises an ejection rod and a mounting plate, the mounting plate is located on a side of the lower die seat away from the stretching lower die, the ejection rod is arranged in the lower die seat, and one end of the ejection rod is connected with the mounting plate, and the other end of the ejection rod is in abutment with the concave die body.

[0017] In an optional embodiment, the upper punch comprises a punch body and a punch fixing seat, the punch fixing seat is arranged on a side of the upper die seat close to the lower die seat, the punch body is connected with the punch fixing seat, the punch body is provided with the ejecting hole, and the ejection structure is arranged in the punch body.

[0018] The punch body extends towards the lower die seat, and the dust cover machining die further comprises a shaping and stripping structure, the shaping and stripping structure is sleeved on the punch body and arranged on a side of the punch fixing seat close to the lower concave die.

[0019] In an optional embodiment, the shaping and stripping structure comprises a connecting piece, an elastic block and a stripping plate, the connecting piece is arranged on the punch fixing seat, the elastic block and the stripping plate are both sleeved on the punch body, the elastic block is located between the punch fixing seat and the stripping plate, the connecting piece is arranged in the elastic block, and the connecting piece is connected with the stripping plate.

[0020] In an optional embodiment, the dust cover machining die further comprises a punching piece fixing seat, the lower concave die, the punching piece fixing seat and the lower die seat are sequentially stacked, and the punching piece is arranged in the punching piece fixing seat.

[0021] In an optional embodiment, the dust cover machining die further comprises a lower pad, the lower die seat, the lower pad and the lower concave die are sequentially stacked; and / or,

[0022] The dustproof cover processing die further comprises an upper pad plate arranged between the upper die seat and the upper punch, and the stripper is movably arranged on the upper die seat and the upper pad plate.

[0023] In an optional embodiment, the dustproof cover processing die further comprises a guide column arranged on one side of the lower die seat close to the upper die seat, and a guide sleeve arranged on one side of the upper die seat close to the lower die seat, and the guide sleeve is sleeved on the guide column.

[0024] The dustproof cover processing die provided by the embodiment of the utility model has the advantages of:

[0025] The dustproof cover processing die comprises a lower die seat, a punching element, an upper die seat and a stripper, the lower die seat is provided with a lower female die, and the lower female die is provided with a forming groove; the punching element is arranged on the lower die seat and penetrates through the lower female die, one end of the punching element extends from the bottom wall of the forming groove, and the punching element is used for punching a workpiece; the upper die seat is arranged in a spaced manner with the lower die seat, the upper die seat is provided with an upper male die on one side close to the lower female die, and the upper male die is provided with a top punching hole corresponding to the punching element; and the stripper is movably arranged on the upper die seat and penetrates through the upper male die, one end of the stripper is arranged in the top punching hole, and the stripper is used for discharging waste in the top punching hole.

[0026] When the dustproof cover is processed, the workpiece can be directly placed on the lower female die, the upper male die is lowered to cooperate with the lower female die to stretch and process the workpiece, and a rough blank of the dustproof cover is obtained; then the upper male die is continuously lowered, the lower female die is folded, the workpiece is punched by the punching element, and the hole on the boss of the dustproof cover is punched out in cooperation with the top punching hole of the upper male die, and the waste punched out from the workpiece is located in the top punching hole; then the upper male die is raised, and the waste punched out in the punching process is discharged from the top punching hole by the stripper. That is, the stretching, punching and discharging processes of the dustproof cover can be combined in the same processing die by using the dustproof cover processing die, the processing cost and production cost of multiple processes are reduced by one-time forming process, the processing efficiency is improved, and the product quality is also better guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 The dustproof cover processing die provided by the embodiment of the utility model is shown in the structural schematic view.

[0029] Figure 2 For Figure 1 Local enlarged view at A in the middle.

[0030] Figure: 100 - dust cover processing mold; 10 - lower die seat; 20 - lower die; 21 - forming groove; 22 - die body; 221 - limiting protrusion; 23 - stretch lower die; 231 - sliding groove; 232 - limiting groove; 30 - punching part; 40 - upper die seat; 50 - upper punch; 51 - top punch hole; 52 - mounting groove; 53 - punch body; 54 - punch fixing seat; 60 - unloading part; 61 - unloading rod; 62 - top punch pin; 70 - ejection structure; 71 - ejection rod; 72 - mounting plate; 80 - shaping and stripping structure; 81 - connecting piece; 82 - elastic block; 83 - stripping plate; 91 - punching part fixing seat; 92 - lower pad plate; 93 - upper pad plate; 94 - guide column; 95 - guide sleeve; 96 - die handle. DETAILED DESCRIPTION

[0031] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0033] It should be noted that: similar reference numbers and letters represent similar 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.

[0034] In the description of the utility model, it needs to be explained that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "setting", "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] As described in the background, the dust cover is an annular cover structure, which is usually punched from a thin metal plate and fixed on a ring or a gasket of a bearing to prevent dust from entering the internal space of the bearing and affecting the service life of the bearing. The processing of the dust cover has multiple processing procedures, but currently different molds or tooling need to be used for processing respectively, resulting in low processing efficiency and high cost.

[0038] Based on this, please refer to Figure 1 and Figure 2 The embodiment of the utility model provides a dust cover processing mold 100, which can effectively improve the above-mentioned technical problems, that is, it can improve the processing efficiency and reduce the cost. The dust cover processing mold 100 will be described in detail below.

[0039] Figure 1 The structure diagram of the dust cover processing mold 100 provided in the embodiment is shown in Figure 2 The local enlarged view of A in Figure 1 The dust cover processing mold 100 provided in the embodiment is shown in Figure 1 and Figure 2The dust cover processing die 100 comprises a lower die base 10, a punching part 30, an upper die base 40 and a discharging part 60. The lower die base 10 is provided with a lower die 20, and the lower die 20 is provided with a forming groove 21. The punching part 30 is arranged on the lower die base 10 and penetrates the lower die 20. One end of the punching part 30 extends from the bottom wall of the forming groove 21, and the punching part 30 is used for punching the workpiece. The upper die base 40 is arranged in a spaced manner with the lower die base 10. The upper die base 40 is provided with an upper punch 50 on the side close to the lower die 20, and the upper punch 50 is provided with a top punching hole 51 corresponding to the punching part 30. The discharging part 60 is movably arranged on the upper die base 40 and penetrates the upper punch 50. One end of the discharging part 60 is arranged in the top punching hole 51, and the discharging part 60 is used for discharging the waste in the top punching hole 51.

[0040] When the dust cover is processed, the workpiece can be directly placed on the lower die 20. The upper punch 50 is lowered to cooperate with the lower die 20 to stretch and process the workpiece, so as to obtain a rough blank of the dust cover. Then, the upper punch 50 continues to be lowered and is folded with the lower die 20. The punching part 30 punches the workpiece, and cooperates with the top punching hole 51 of the upper punch 50, so as to punch the hole on the boss of the dust cover. The waste punched by the workpiece is located in the top punching hole 51. Then, the upper punch 50 is raised, and the discharging part 60 discharges the waste punched in the punching process from the top punching hole 51. That is, the dust cover processing die 100 can combine the stretching, punching and discharging processes of the dust cover in the same processing die. Through one forming process, the processing cost and production cost of multiple processes are reduced, the processing efficiency is improved, and the product quality is also guaranteed.

[0041] Specifically, the lower die 20 comprises a die body 22 and a stretching lower die 23. The stretching lower die 23 is provided with a sliding groove 231, and the die body 22 is slidably arranged in the sliding groove 231. The die body 22 is provided with the forming groove 21, and the punching part 30 penetrates the die body 22.

[0042] It can be understood that the stretching lower die 23 can cooperate with the upper punch 50 to stretch and process the workpiece. After the stamping and forming process of the dust cover is completed, that is, the upper punch 50 is raised, and the discharging part 60 discharges the waste, the die body 22 can be raised relative to the stretching lower die 23, so as to eject the finished workpiece, realize the discharging process, further combine multiple processing procedures, complete the process on one processing die, further improve the processing efficiency and reduce the cost.

[0043] In order to facilitate the sliding of the die body 22, in the embodiment, the dust cover processing die 100 further comprises a material ejecting structure 70, which is movably arranged on the lower die seat 10, and one end of the material ejecting structure 70 is in abutment with the die body 22.

[0044] It should be noted that the material ejecting structure 70 can be manually pushed to move, so as to drive the die body 22 to slide relative to the stretching lower die 23, thereby ejecting the formed workpiece; of course, the material ejecting structure 70 can also be driven by a driving device to move.

[0045] Specifically, the material ejecting structure 70 comprises a material ejecting rod 71 and a mounting plate 72, the mounting plate 72 is located on the side of the lower die seat 10 away from the stretching lower die 23, the material ejecting rod 71 is arranged through the lower die seat 10, and one end of the material ejecting rod 71 is connected with the mounting plate 72, and the other end of the material ejecting rod 71 is in abutment with the die body 22.

[0046] In order to improve the stability during the material ejecting process, the number of the material ejecting rod 71 can be set to be multiple, and the multiple material ejecting rods 71 are arranged at intervals and connected with the mounting plate 72 at the same time. It should be noted that in the embodiment, the number of the material ejecting rod 71 is two, of course, in other embodiments, the number of the material ejecting rod 71 can also be three, four or five, etc., and the specific number needs to be determined according to the actual processing design requirements.

[0047] Further, the side wall of the sliding groove 231 is provided with a limiting groove 232, and the side wall of the die body 22 is provided with a limiting protrusion 221, and the limiting protrusion 221 is matched with the limiting groove 232. By setting the limiting groove 232 and the limiting protrusion 221, the movement of the die body 22 can be limited, so as to prevent the die body 22 from sliding too much and colliding with the upper punch 50 and other situations.

[0048] Please continue to combine Figure 1 and Figure 2 The side of the upper punch 50 close to the upper die seat 40 is also provided with a mounting groove 52, the bottom wall of the mounting groove 52 is provided with a punch hole 51, and the punch hole 51 penetrates through the side of the upper punch 50 away from the upper die seat 40; the material ejecting piece 60 comprises a material ejecting rod 61 and a punch pin 62, the material ejecting rod 61 is movably arranged on the upper die seat 40, and one end of the material ejecting rod 61 is arranged in the mounting groove 52; one part of the punch pin 62 is arranged in the mounting groove 52 and connected with one end of the material ejecting rod 61, and the other part of the punch pin 62 is arranged in the punch hole 51.

[0049] That is, by operating the discharging rod 61 up and down, the ejector pin 62 can be driven to move up and down in the ejector hole 51, so as to punch out the waste in the ejector hole 51; and the mounting groove 52 can play a role in mounting the discharging rod 61 and the ejector pin 62, and can also play a role in limiting the discharging rod 61 and the ejector pin 62, preventing the displacement of the two from being too much, so as to be punched out from the ejector hole 51.

[0050] Please continue to combine Figure 1 Specifically, the upper punch 50 includes a punch body 53 and a punch fixing seat 54, the punch fixing seat 54 is arranged on the side of the upper die seat 40 close to the lower die seat 10, the punch body 53 is connected with the punch fixing seat 54, and the punch body 53 is provided with an ejector hole 51, and the discharging part 60 is arranged in the punch body 53; the punch body 53 extends towards the direction close to the lower die seat 10, and the dust cover machining die 100 further includes a shaping and discharging structure 80, the shaping and discharging structure 80 is sleeved on the punch body 53, and is arranged on the side of the punch fixing seat 54 close to the lower concave die 20.

[0051] By extending the punch body 53 and sleeving the shaping and discharging structure 80 on the punch body 53, the shaping and discharging structure 80 can be used to realize the shaping and discharging machining process of the workpiece during the machining process, so as to further combine multiple machining processes and complete the machining on one machining die, thereby further improving the production efficiency and reducing the cost.

[0052] Specifically, the shaping and discharging structure 80 includes a connecting piece 81, an elastic block 82 and a discharging plate 83, the connecting piece 81 is arranged on the punch fixing seat 54, the elastic block 82 and the discharging plate 83 are both sleeved on the punch body 53, and the elastic block 82 is located between the punch fixing seat 54 and the discharging plate 83, the connecting piece 81 is arranged in the elastic block 82 and connected with the discharging plate 83.

[0053] It can be understood that during the downward movement of the upper punch 50, the discharging plate 83 can cooperate with the stretching lower die 23 to perform stretching machining on the workpiece, and under the elastic force of the elastic block 82, the shaping machining of the workpiece is realized, and since the elastic block has elasticity, it can play a buffering role and improve the machining precision; and when the stretching, punching and shaping machining operations are completed, the upper punch 50 moves upward, at this time, the elastic block will return to the initial state, so that the discharging plate 83 moves downward under the action of the elastic force, thereby discharging the workpiece, so that the finished workpiece is separated from the discharging plate 83.

[0054] It should be noted that in the present embodiment, the connecting piece 81 is a bolt, which is fixed on the punch fixing seat 54 and is screwed with the discharging plate 83 after penetrating through the elastic block 82 to realize the fixation. Of course, in other embodiments, the connecting piece 81 can also be a rivet or a pin or other connecting and fixing parts.

[0055] Please continue to combine Figure 1 In order to better install the punching part 30, the dust cover processing die 100 further comprises a punching part fixing seat 91, the lower cavity die 20, the punching part fixing seat 91 and the lower die seat 10 are sequentially stacked, and the punching part 30 is arranged on the punching part fixing seat 91.

[0056] Further, in order to avoid impact and wear of the lower die seat caused by the lower cavity die 20 during the die processing, the dust cover processing die 100 further comprises a lower backing plate 92, the lower die seat 10, the lower backing plate 92 and the lower cavity die 20 are sequentially stacked; in this embodiment, the lower die seat 10, the punching part fixing seat 91, the lower backing plate 92 and the lower cavity die 20 are sequentially stacked, and the lower backing plate 92 can better protect the lower die seat 10.

[0057] Similarly, in order to avoid impact and wear of the upper die seat 40 caused by the upper cavity die 50 during the die processing, and better protect the upper die seat 40, in this embodiment, the dust cover processing die 100 further comprises an upper backing plate 93, the upper backing plate 93 is arranged between the upper die seat 40 and the upper cavity die 50, and the stripper 60 is movably arranged between the upper die seat 40 and the upper backing plate 93.

[0058] In this embodiment, the dust cover processing die 100 further comprises a guide column 94 and a guide sleeve 95, the guide column 94 is arranged on the side of the lower die seat 10 close to the upper die seat 40, the guide sleeve 95 is arranged on the side of the upper die seat 40 close to the lower die seat 10, and the guide sleeve 95 is sleeved on the guide column 94. Through the cooperation of the guide sleeve 95 and the guide column 94, the stability during the upward and downward movement of the die can be improved.

[0059] In addition, in this embodiment, the dust cover processing die 100 further comprises a die handle 96, the die handle 96 is arranged on the upper die seat 40, and specifically in this embodiment, the stripper 60 is arranged in the die handle 96. Through the arrangement of the die handle 96, the dust cover processing die 100 can be conveniently fixed.

[0060] In summary, the embodiment of the utility model provides a dust cover processing die 100, dust cover processing die 100 includes lower die seat 10, puncher 30, upper die seat 40 and unloading piece 60, lower die seat 10 is provided with lower die 20, and lower die 20 is provided with forming groove 21;Puncher 30 is set up in lower die seat 10, and is threaded in lower die 20, and one end of puncher 30 stretches out from the bottom wall of forming groove 21, and puncher 30 is used to punch the workpiece;Upper die seat 40 is spaced apart from lower die seat 10, and upper die seat 40 is provided with upper punch 50 on the side close to lower die 20, and upper punch 50 is provided with top punch 51, and top punch 51 corresponds with puncher 30;Unloading piece 60 is movably arranged in upper die seat 40, and is threaded in upper punch 50, and one end of unloading piece 60 is arranged in top punch 51, and unloading piece 60 is used to unload the waste in top punch 51.In the dust cover processing, the workpiece can be directly placed on lower die 20, and the upper punch 50 is lowered, which can cooperate with lower die 20 to stretch the workpiece and obtain the rough blank of dust cover;Then upper punch 50 continues to descend, and after folding with lower die 20, puncher 30 is used to punch the workpiece, and cooperates with the top punch 51 of upper punch 50, so as to punch the hole on the boss of dust cover, and the waste punched by the workpiece is located in top punch 51;Then upper punch 50 is raised, and the waste punched in the punching process is punched out from top punch 51 by unloading piece 60.

[0061] That is, by using dust cover processing die 100, the stretching, punching and unloading processes of dust cover can be combined in the same processing die, and by one forming process, the processing cost and production cost of multiple processes are reduced, thereby improving the processing efficiency and better ensuring the product quality formed by processing.

[0062] The above only describes specific embodiments of the utility model and is not used to limit the utility model, and for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A dust cover processing mold characterized by comprising: The dust cover processing die (100) further comprises a material ejecting structure (70), one end of the material ejecting structure (70) is in abutment with the die body (22), and the material ejecting structure (70) is movably arranged on the lower die seat (10). The material ejecting structure (70) comprises a material ejecting rod (71) and a mounting plate (72), the mounting plate (72) is located on the side of the lower die seat (10) away from the stretching lower die (23), the material ejecting rod (71) is arranged through the lower die seat (10), one end of the material ejecting rod (71) is connected with the mounting plate (72), and the other end of the material ejecting rod (71) is in abutment with the die body (22). The side wall of the sliding groove (231) is provided with a limiting groove (232), the side wall of the die body (22) is provided with a limiting protrusion (221), and the limiting protrusion (221) is matched with the limiting groove (232). The upper convex die (50) is further provided with a mounting groove (52) on the side close to the upper die seat (40), the bottom wall of the mounting groove (52) is provided with the top punching hole (51), and the top punching hole (51) penetrates through the upper convex die (50) away from the upper die seat (40). The dust cover processing die (100) further comprises a material ejecting structure (70), one end of the material ejecting structure (70) is in abutment with the die body (22), and the material ejecting structure (70) is movably arranged on the lower die seat (10).

2. The dust cover machining die of claim 1, wherein, The material ejecting structure (70) comprises a material ejecting rod (71) and a mounting plate (72), the mounting plate (72) is located on the side of the lower die seat (10) away from the stretching lower die (23), the material ejecting rod (71) is arranged through the lower die seat (10), one end of the material ejecting rod (71) is connected with the mounting plate (72), and the other end of the material ejecting rod (71) is in abutment with the die body (22).

3. The dust cap machining die of claim 2, wherein, The side wall of the sliding groove (231) is provided with a limiting groove (232), the side wall of the die body (22) is provided with a limiting protrusion (221), and the limiting protrusion (221) is matched with the limiting groove (232).

4. The dust cover machining die of claim 3, wherein, The upper convex die (50) is further provided with a mounting groove (52) on the side close to the upper die seat (40), the bottom wall of the mounting groove (52) is provided with the top punching hole (51), and the top punching hole (51) penetrates through the upper convex die (50) away from the upper die seat (40).

5. The dust cap machining die of claim 2, wherein ​ 6. The dust cap machining die of claim 1, wherein ​ The stripper (60) comprises a stripper rod (61) and a knockout pin (62), the stripper rod (61) is movably arranged in the upper die seat (40), and one end of the stripper rod (61) is arranged in the mounting groove (52); one part of the knockout pin (62) is arranged in the mounting groove (52) and connected with one end of the stripper rod (61), and the other part of the knockout pin (62) is arranged in the knockout hole (51).

7. The dust cap machining die of claim 1, wherein The upper punch (50) comprises a punch body (53) and a punch fixed seat (54), the punch fixed seat (54) is arranged on the side of the upper die seat (40) close to the lower die seat (10), the punch body (53) is connected with the punch fixed seat (54), and the punch body (53) is provided with the knockout hole (51), and the stripper (60) is arranged in the punch body (53). The punch body (53) extends towards the lower die seat (10), and the dust cover processing die (100) further comprises a shaping and stripping structure (80), the shaping and stripping structure (80) is sleeved on the punch body (53) and arranged on the side of the punch fixed seat (54) close to the lower concave die (20).

8. The dust cap machining die of claim 7, wherein, The shaping and stripping structure (80) comprises a connecting piece (81), an elastic block (82) and a stripping plate (83), the connecting piece (81) is arranged on the punch fixed seat (54), the elastic block (82) and the stripping plate (83) are sleeved on the punch body (53), and the elastic block (82) is located between the punch fixed seat (54) and the stripping plate (83), the connecting piece (81) is arranged in the elastic block (82) and connected with the stripping plate (83).

9. The dust cap machining die of claim 1, wherein, The dust cover processing die (100) further comprises a punching piece fixed seat (91), the lower concave die (20), the punching piece fixed seat (91) and the lower die seat (10) are sequentially stacked, and the punching piece (30) is arranged in the punching piece fixed seat (91).

10. The dust cap machining die of claim 1, wherein, The dust cover processing die (100) further comprises a lower pad (92), the lower die seat (10), the lower pad (92) and the lower concave die (20) are sequentially stacked; and / or, The dust cover processing die (100) further comprises an upper pad (93), the upper pad (93) is arranged between the upper die seat (40) and the upper punch (50), and the stripper (60) is movably arranged in the upper die seat (40) and the upper pad (93).

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