Machining method of special-shaped locking gasket with hole and stamping die tool of special-shaped locking gasket

Abstract

The invention relates to the technical field of ship engine manufacturing and machining, in particular to a machining method of a special-shaped locking gasket with a hole and a stamping die tool of the special-shaped locking gasket with the hole. Comprising a base, a blanking and punching die, discharging rubber, a discharging plate, an upper support, a die handle, a pushing rod, a base plate, a male die base, a blanking female die, a discharging device, a pushing block and a punching male die, a machine tool is started, an upper die of the punching die tool is lifted and separated from a lower die, then a long-strip-shaped plate blank is placed on the discharging plate, the upper die of the punching die tool is pressed downwards to a fixed distance, and the punching male die is pressed downwards. The special-shaped stop gasket with the hole is punched by pushing the push rod to eject the punched and formed special-shaped stop gasket with the hole down, one-time punching machining of the special-shaped stop gasket with the hole is completed, and continuous punching machining can be carried out by repeating the operation, so that the machining efficiency of the special-shaped stop gasket with the hole is improved. By the adoption of the structure, one-time stamping forming of the special-shaped locking gasket with the hole is achieved, the process route is simple, operation is easy and convenient, and the requirement for mass production can be met.

Description

Technical Field

[0001] The invention relates to the technical field of ship engine manufacturing and processing, and in particular to a processing method of a special-shaped stop gasket with a hole and a punching die tool thereof. Background Art

[0002] The supercharger is an important device for improving the combustion efficiency of ships and warship engines, and the stop gasket is an important part of the supercharger product. This part is fixed on the large end flange of the supercharger turbine shell, and the turbine shell and the bearing shell of the supercharger are assembled and fixed by hexagonal screws. The hexagonal screws themselves have no anti-loosening function. During the operation of the supercharger, there will be different degrees of vibration. If the hexagonal screws are not provided with an anti-loosening structure, the hexagonal screws will loosen or even fall off during long-term vibration operation, thereby affecting the turbine exhaust gas seal and reducing the supercharging efficiency. Severe cases will cause equipment damage and safety accidents. Therefore, the stop gasket is used to prevent the hexagonal screws from loosening.

[0003] However, since the structure of the stop gasket is a special-shaped structure with holes, the current processing method mostly uses wire cutting to cut the shape and digital drilling to form the holes. This method has the problems of low processing efficiency and high cost. Summary of the invention

[0004] The purpose of the present invention is to provide a processing method for a special-shaped stop gasket with a hole and a die tool thereof, so as to solve the problem that the structure of the stop gasket is a special-shaped structure with a hole, and the current processing method mostly adopts wire cutting to cut the shape and digital drilling to form the hole. This method has the problems of low processing efficiency and high cost.

[0005] To achieve the above-mentioned purpose, the present invention provides a punching tool with a hole-shaped stop gasket, the punching tool with a hole-shaped stop gasket comprises a base, a blanking punching die, a discharge rubber, a discharge plate, an upper support, a die handle, a push rod, a pad, a punch seat, a blanking die, a discharger, a push block and a punching punch, the upper surface of the base is equipped with the blanking punching die through a first common cylindrical pin, the top of the blanking punching die is sequentially equipped with the discharge rubber and the discharge plate from bottom to top through a stepped screw, guide columns are arranged on both sides of the base, the upper support is located above the base, guide sleeves are arranged on both sides of the bottom of the upper support, and the guide columns are adapted to the guide sleeves;

[0006] The bottom of the upper support cooperates with the hexagon socket head screw and the second ordinary cylindrical pin, and the pad, the punch seat and the blanking die are installed in sequence from top to bottom. The die handle is installed at the center of the upper support, the pushing rod is arranged inside the die handle, the pushing block is arranged below the pushing rod, the discharger is arranged inside the blanking die, a third ordinary cylindrical pin is penetrated on the pad, the top of the third ordinary cylindrical pin abuts against the pushing block, and the bottom of the third ordinary cylindrical pin abuts against the top of the discharger, the punching punch is arranged on the punch seat, and the end of the punching punch away from the punch seat passes through the discharger.

[0007] Among them, the die handle is an axial diameter structure with three sections of different diameters with a through hole in the axis. The die handle passes through the central through hole of the upper support and is clamped and fixed on the upper support. The upper end of the die handle extends into the central hole of the spindle head of an ordinary hydraulic punch press for positioning. The end face of the spindle head of the punch press is flush with the upper end face of the upper support and the die handle is clamped by radial screws on the spindle head of the punch press.

[0008] Among them, the upper support is an octagonal structure with a hole. The upper support is on the guide pillars arranged on both sides of the base through the guide sleeves arranged on both sides, and slides up and down in the vertical direction to limit the axial position. The guide pillar is a three-section shaft neck structure with different lengths and diameters, and the guide sleeve is a two-section shaft neck structure with different diameters and a through hole in the axis.

[0009] Among them, the pad is a square structure with holes, which is assembled under the upper support. The circumferential through holes and pin holes of the pad are aligned with the circumferential holes of the upper support and the punch seat, and the upper and lower planes of the pad are respectively flush with the bottom plane of the upper support and the upper plane of the punch seat.

[0010] Among them, the punch seat is a square structure with a hole and is assembled under the pad. The circumferential through holes and pin holes of the punch seat are aligned with the circumferential holes of the pad and the blanking die. The upper and lower planes of the punch seat are respectively leveled and limited with the bottom plane of the pad and the upper plane of the blanking die.

[0011] The base is a square structure with holes, the lower plane of the base is in contact with and flush with a common hydraulic punching machine workbench, and the punching die tool is fixedly connected to the common hydraulic punching machine workbench by bolts through U-shaped grooves on both sides of the base.

[0012] The blanking die is of a square structure, threaded holes and positioning pin holes for connection and fixing are arranged around the blanking die, and a square sink and a special-shaped stop gasket through hole are arranged in the middle of the blanking die.

[0013] Among them, the unloading plate has a square structure, and threaded holes for connection and fixing are arranged circumferentially of the unloading plate, and a special-shaped stop gasket through hole is arranged in the middle position of the unloading plate; the unloading rubber has a square structure, and smooth holes for screw connection are arranged circumferentially of the unloading rubber, and a rectangular square hole is arranged in the middle position of the unloading rubber; the blanking and punching die has a square structure, and screw smooth holes, threaded holes and positioning pin holes are arranged around the blanking and punching die respectively; a special-shaped stop gasket boss is arranged in the middle position of the blanking and punching die, and a through hole is arranged at the corresponding position on the special-shaped stop gasket boss.

[0014] Among them, the punching punch is a cylindrical structure composed of three sections of shaft diameters with different diameters, the pushing block is a circular block structure, the discharger is a square structure, a special-shaped stop gasket boss is provided in the middle position of the discharger, and a through hole is provided at the corresponding position of the special-shaped stop gasket boss, the pushing rod is a cylindrical structure, arranged in the mold handle, and vertically placed in the axial through hole of the mold handle, the lower end of the pushing rod is in contact with the upper plane of the pushing block, and the pushing rod can slide up and down in the axial through hole of the mold handle.

[0015] The present invention also provides a method for processing a holed special-shaped stop gasket, which is applied to a die tool for the holed special-shaped stop gasket as described above, and comprises the following steps:

[0016] Cut the material into the size of δ1mm×75mm×1000mm according to the specification requirements, perform sheet metal processing, and obtain the blank;

[0017] The blank is punched by a die tool to obtain a rough product of a special-shaped stop gasket part with a hole;

[0018] The rough product of the holed special-shaped stop gasket part is deburred to obtain the finished product of the holed special-shaped stop gasket.

[0019] The present invention discloses a processing method for a special-shaped stop gasket with a hole and a punching die tool thereof, comprising a base, a blanking punching die, a discharge rubber, a discharge plate, an upper support, a die handle, a push rod, a pad, a punch seat, a blanking die, a discharger, a push block and a punching die. The punching die tool is assembled and fixed and connected to a common hydraulic punching machine, the machine is started, the upper die of the punching die tool is lifted and the lower die is separated, and then a long strip blank is manually placed between the blanking die and the discharge plate, that is, on the discharge plate, the punching die tool is assembled and fixed to a common hydraulic punching machine, the machine is started, the upper die of the punching die tool is lifted and the lower die is separated, and then the long strip blank is manually placed between the blanking die and the discharge plate, that is, on the discharge plate, the punching die tool is The upper die is pressed down to a fixed distance, at which time the unloading rubber is elastically deformed, thereby punching out the special-shaped stop gasket with a hole. Finally, the push rod is pushed down to push down the special-shaped stop gasket with a hole, and the stamping process of the special-shaped stop gasket with a hole is completed. The above operation can be repeated to carry out continuous stamping. The above structure is used to realize one-time stamping of the special-shaped stop gasket with a hole, with fewer steps, a simple process route, fewer types of work involved, simple and convenient operation, safety and reliability, and can meet the requirements of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a die tool for a special-shaped stop gasket with a hole provided by the present invention.

[0022] Figure 2 It is a structural schematic diagram of the mold handle provided by the present invention.

[0023] Figure 3 It is a structural schematic diagram of the upper support provided by the present invention.

[0024] Figure 4 It is a structural schematic diagram of the guide column provided by the present invention.

[0025] Figure 5 It is a structural schematic diagram of the guide sleeve provided by the present invention.

[0026] Figure 6 It is a structural schematic diagram of the pad provided by the present invention.

[0027] Figure 7 It is a structural schematic diagram of the punch seat provided by the present invention.

[0028] Figure 8 It is a structural schematic diagram of the base provided by the present invention.

[0029] Fig. 9It is a structural schematic diagram of the blanking die provided by the present invention.

[0030] Fig.10 It is a structural schematic diagram of the unloading plate provided by the present invention.

[0031] Fig.11 It is a structural schematic diagram of the unloading rubber provided by the present invention.

[0032] Fig.12 It is a structural schematic diagram of the blanking and punching die provided by the present invention.

[0033] Fig.13 The present invention is a flowchart of the steps of the processing method of the holed special-shaped stop gasket provided by the present invention.

[0034] 1-die handle, 2-upper support, 3-guide column, 4-guide sleeve, 5-shim, 6-hexagon socket head screw, 7-punch seat, 8-base, 9-blanking die, 10-unloading plate, 11-unloading rubber, 12-blanking punching die, 13-step screw, 14-first ordinary cylindrical pin, 15-punching punch, 16-pushing block, 17-unloader, 18-screw, 19-second ordinary cylindrical pin, 20-third ordinary cylindrical pin, 21-pushing rod. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] See also Figures 1 to 12 The present invention provides a punching tool for a special-shaped stop gasket with a hole, the punching tool for the special-shaped stop gasket with a hole comprises a base 8, a blanking punching die 12, a discharge rubber 11, a discharge plate 10, an upper support 2, a die handle 1, a push rod 21, a pad 5, a punch seat 7, a blanking die 9, a discharger 17, a push block 16 and a punching punch 15, the upper surface of the base 8 is installed with the blanking punching die 12 through a first common cylindrical pin 14, the top of the blanking punching die 12 is sequentially installed with the discharge rubber 11 and the discharge plate 10 from bottom to top through a stepped screw 13, guide columns 3 are arranged on both sides of the base 8, the upper support 2 is located above the base 8, guide sleeves 4 are arranged on both sides of the bottom of the upper support 2, and the guide columns 3 are adapted to the guide sleeves 4;

[0037] The bottom of the upper support 2 is matched with the hexagon socket head screw 6 and the second ordinary cylindrical pin 19, and the pad 5, the punch seat 7 and the blanking die 9 are installed in sequence from top to bottom. The die handle 1 is installed at the center of the upper support 2, the pushing rod 21 is arranged inside the die handle 1, the pushing block 16 is arranged below the pushing rod 21, the discharger 17 is arranged inside the blanking die 9, the pad 5 is penetrated by a third ordinary cylindrical pin 20, the top of the third ordinary cylindrical pin 20 abuts against the pushing block 16, and the bottom of the third ordinary cylindrical pin 20 abuts against the top of the discharger 17, the punch seat 7 is provided with the punching punch 15, and the end of the punching punch 15 away from the punch seat 7 passes through the discharger 17.

[0038] In this embodiment, the die tool is assembled and fixed and connected to a common hydraulic punching machine (J23-16), the machine tool is started, the upper die of the die tool is lifted and separated from the lower die, and then the long strip of sheet metal blank is manually placed between the blanking die 9 and the unloading plate 10, that is, on the unloading plate 10, and the upper die of the die tool is pressed down to a fixed distance, at which time the unloading rubber 11 is elastically deformed, thereby punching out a holed special-shaped stop gasket, and finally, the push rod is pushed down to push the punched special-shaped stop gasket with a hole to complete a punching process of the holed special-shaped stop gasket, and the above operations are repeated to carry out continuous punching processing. The above structure is used to realize one-time stamping of the holed special-shaped stop gasket, with fewer steps, a simple process route, fewer types of work involved, simple and convenient operation, safety and reliability, and can meet the requirements of mass production.

[0039] Furthermore, the die handle 1 is an axial diameter structure with three sections of different diameters and a through hole in the axis. The die handle 1 passes through the central through hole of the upper support 2 and is clamped and fixed on the upper support 2. The upper end of the die handle 1 extends into the central hole of the spindle head of an ordinary hydraulic punch press for positioning. The end face of the spindle head of the punch press is flush with the upper end face of the upper support 2 and the die handle 1 is clamped by radial screws on the spindle head of the punch press.

[0040] In this embodiment, the mold handle 1 plays a role in positioning, guiding and fixing. After the mold handle 1 passes through the central through hole of the upper support 2 and is assembled and limited, the large end surface of the mold handle 1 needs to be ground to be flush with the lower end surface of the upper support 2.

[0041] Furthermore, the upper support 2 is an octagonal structure with a hole, and the upper support 2 is axially limited by sliding up and down in the vertical direction on the guide columns 3 arranged on both sides of the base 8 through the guide sleeves 4 arranged on both sides. The guide columns 3 are three-section shaft neck structures with different lengths and diameters, and the guide sleeves 4 are two-section shaft neck structures with different diameters with a through hole in the axis.

[0042] In this embodiment, the upper support 2 serves to limit and support the upper die of the entire die tool and to connect and support. The left and right outermost through holes of the upper support 2 are fixed with the guide sleeve 4 by interference fit, and the interference amount is 0.02 to 0.03 mm. The guide column 3 serves to guide and limit. The guide column 3 and the through hole of the base 8 are fixed by interference fit, and the interference amount is 0.02 to 0.03 mm. The guide sleeve 4 serves to guide and limit sliding.

[0043] Furthermore, the pad 5 is a square structure with holes, which is assembled under the upper support 2. The circumferential through holes and pin holes of the pad 5 are aligned with the circumferential holes of the upper support 2 and the punch seat 7. The upper and lower planes of the pad 5 are respectively flush with the bottom plane of the upper support 2 and the upper plane of the punch seat 7.

[0044] In this embodiment, the circumferential pin holes of the pad 5 need to be matched with the circumferential pin holes of the upper support 2, the punch seat 7 and the blanking die 9 seat, and the inner ring unloading ejection holes of the pad 5 need to be matched with the inner ring unloading ejection holes on the punch seat 7.

[0045] Furthermore, the punch seat 7 is a square structure with a hole and is assembled under the pad 5. The circumferential through holes and pin holes of the punch seat 7 are aligned with the circumferential holes of the pad 5 and the blanking die 9. The upper and lower planes of the punch seat 7 are respectively leveled and limited with the bottom plane of the pad 5 and the upper plane of the blanking die 9.

[0046] In this embodiment, the circumferential pin holes of the punch seat 7 need to be matched with the circumferential pin holes of the upper support 2, the pad 5 and the blanking die 9; the inner ring unloading ejection holes of the punch seat 7 need to be matched with the inner ring unloading ejection holes on the pad 5; the assembly limit holes of the punching punch 15 in the middle position of the punch seat 7 need to be matched with the blanking holes on the blanking punching die 12 and the limit holes on the discharger 17, and the center spacing of the holes must be consistent.

[0047] Furthermore, the base 8 is a square structure with a hole, the lower plane of the base 8 is in contact with and flush with a common hydraulic punching machine workbench, and the punching die tool is fixedly connected to the common hydraulic punching machine workbench by bolts through U-shaped grooves on both sides of the base 8.

[0048] In this embodiment, the limit pin holes at the middle and left and right sides of the base 8 need to be matched with the limit pin holes on the outer ring of the blanking punching die 12.

[0049] Furthermore, the blanking die 9 is of a square structure, threaded holes and positioning pin holes for connection and fixing are arranged around the blanking die 9, and a square sink and a special-shaped stop gasket through hole are arranged in the middle of the blanking die 9.

[0050] In this embodiment, the circumferential pin holes on the blanking die 9 need to be matched with the circumferential pin holes of the upper support 2, the pad 5 and the punch seat 7; the special-shaped stop gasket through hole in the middle position on the blanking die 9 needs to be matched with the special-shaped stop gasket boss of the blanking punching die 12 to ensure that the double-sided clearance is 0.06-0.08mm; the verticality error between the special-shaped stop gasket through hole profile of the blanking die 9 and the reference plane B is not greater than 0.01mm; the cutting edge of the blanking die 9 needs to be kept sharp.

[0051] Furthermore, the unloading plate 10 is of a square structure, and threaded holes for connection and fixing are arranged circumferentially thereon, and a special-shaped stop gasket through hole is arranged in the middle position of the unloading plate 10; the unloading rubber 11 is of a square structure, and light holes for screw connection are arranged circumferentially thereon, and a rectangular square hole is arranged in the middle position of the unloading rubber 11; the blanking and punching die 12 is of a square structure, and screw light holes, threaded holes and positioning pin holes are arranged around the blanking and punching die 12; a special-shaped stop gasket boss is arranged in the middle position of the blanking and punching die 12, and a through hole is arranged at the corresponding position on the special-shaped stop gasket boss.

[0052] In this embodiment, the unloading plate 10 plays a role of leveling and auxiliary support for stamping and unloading. The upper plane of the unloading plate 10 is in flat contact with the small end face (lower plane) of the blanking die 9. The assembly and manufacturing requirements of the unloading plate 10 are as follows: the inner surface size of the through hole of the special-shaped stop gasket in the middle position matches the blanking punching die 12, and the double-sided clearance is 0.5mm. The unloading rubber 11 plays a role in stamping and unloading, and the manufacturing material is rubber sheet 1615. The special-shaped stop gasket boss set in the middle position of the blanking punching die 12 needs to be matched with the special-shaped stop gasket through hole in the middle position on the blanking die 9 to ensure that the double-sided clearance is 0.06~0.08m m; the diameter of the through hole on the special-shaped stop gasket boss set in the middle position of the blanking and punching die 12 must match the small-diameter shaft of the punching punch 15 to ensure that the double-sided clearance is 0.06-0.08mm; the center distance of the through hole on the special-shaped stop gasket boss set in the middle position of the blanking and punching die 12 must match the assembly limit holes of the punching punch 15 on the punch seat 7 and the discharger 17 to ensure consistent spacing; the profile of the special-shaped stop gasket boss in the middle position on the blanking and punching die 12 must have a verticality error of no more than 0.01mm with the reference plane G (the upper plane of the boss); the cutting edge of the blanking and punching die 12 must be kept sharp.

[0053] Furthermore, the punching punch 15 is a cylindrical structure composed of three sections of shaft diameters of different diameters, the pushing block 16 is a circular block structure, the discharger 17 is a square structure, a special-shaped stop gasket boss is provided in the middle position of the discharger 17, and a through hole is provided at a corresponding position on the special-shaped stop gasket boss, the pushing rod 21 is a cylindrical structure, arranged in the mold handle 1, and vertically placed in the axial through hole of the mold handle 1, the lower end of the pushing rod 21 contacts the upper plane of the pushing block 16, and the pushing rod 21 can slide up and down in the axial through hole of the mold handle 1.

[0054] In this embodiment, the punching punch 15 is used to punch the through hole on the zero. After the punching punch 15 is assembled on the punch seat 7, the large axial end face needs to be ground to be flush with the upper plane of the punch seat 7; the small end cutting edge of the punching punch 15 needs to be kept sharp, the push block 16 and the discharger 17 both play a unloading role, the through hole center distance on the special-shaped stop gasket boss in the middle position of the discharger 17 needs to be matched with the punch seat 7 and the blanking punching die 12 to ensure that the hole center distance is consistent; the profile size of the special-shaped stop gasket boss in the middle position of the discharger 17 needs to be matched with the profile of the special-shaped stop gasket through hole in the middle position of the blanking die 9 to ensure that the double-sided clearance is 0.5 mm, and the push rod 21 plays a unloading role, which is used to push the push block 16, and then push the discharger 17 to eject the stamped stop gasket to discharge.

[0055] See also Fig.13 The present invention also provides a method for processing a hole-shaped stop gasket, which is applied to a die tool for the hole-shaped stop gasket as described above, and comprises the following steps:

[0056] S1: Cut the material into the size of δ1mm×75mm×1000mm according to the specification requirements, perform sheet metal processing, and obtain the blank;

[0057] S2: punching the blank with a die tool to obtain a rough product of a special-shaped stop gasket part with a hole;

[0058] S3: Deburring the rough product of the holed special-shaped stop gasket part to obtain a finished product of the holed special-shaped stop gasket.

[0059] In this embodiment, the material is first cut according to the specification requirement of δ1mm×75mm×1000mm (where the specification requirement δ is the thickness of the sheet blank), sheet metal processing is performed to obtain the blank, and then the blank is punched using a die tool to obtain a rough product of a holed special-shaped stop gasket part. Finally, the rough product of the holed special-shaped stop gasket part is deburred to obtain a finished product of a holed special-shaped stop gasket.

[0060] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A die tool for a special-shaped stop washer with a hole, characterized in that: It includes a base, a blanking punching die, a discharge rubber, a discharge plate, an upper support, a die handle, a push rod, a pad, a punch seat, a blanking die, a discharger, a push block and a punching punch. The upper surface of the base is equipped with the blanking punching die through a first common cylindrical pin. The top of the blanking punching die is equipped with the discharge rubber and the discharge plate in sequence from bottom to top through a stepped screw. Guide pillars are arranged on both sides of the base. The upper support is located above the base. Guide sleeves are arranged on both sides of the bottom of the upper support. The guide pillars are matched with the guide sleeves. The bottom of the upper support cooperates with the hexagon socket head screw and the second ordinary cylindrical pin, and the pad, the punch seat and the blanking die are installed in sequence from top to bottom. The die handle is installed at the center of the upper support, the pushing rod is arranged inside the die handle, the pushing block is arranged below the pushing rod, the discharger is arranged inside the blanking die, a third ordinary cylindrical pin is penetrated on the pad, the top of the third ordinary cylindrical pin abuts against the pushing block, and the bottom of the third ordinary cylindrical pin abuts against the top of the discharger, the punching punch is arranged on the punch seat, and the end of the punching punch away from the punch seat passes through the discharger.

2. The die tool for the special-shaped stop washer with a hole as claimed in claim 1, characterized in that: The die handle is an axial diameter structure with three sections of different diameters and a through hole in the axis. The die handle passes through the central through hole of the upper support and is clamped and fixed on the upper support. The upper end of the die handle extends into the central hole of the spindle head of an ordinary hydraulic punch press for positioning. The end face of the spindle head of the punch press is flush with the upper end face of the upper support and the die handle is clamped by radial screws on the spindle head of the punch press.

3. The die tool for the special-shaped stop washer with a hole as claimed in claim 2, characterized in that: The upper support is an octagonal structure with a hole. The upper support is on the guide pillars arranged on both sides of the base through the guide sleeves arranged on both sides, and slides up and down in the vertical direction to limit the axial position. The guide pillar is a three-section shaft neck structure with different lengths and diameters, and the guide sleeve is a two-section shaft neck structure with different diameters and a through hole in the axis.

4. The die tool for the special-shaped stop washer with a hole as claimed in claim 3, characterized in that: The pad is a square structure with holes, which is assembled under the upper support. The circumferential through holes and pin holes of the pad are aligned with the circumferential holes of the upper support and the punch seat. The upper and lower planes of the pad are respectively flush with the bottom plane of the upper support and the upper plane of the punch seat.

5. The die tool for the special-shaped stop washer with a hole as claimed in claim 4, characterized in that: The punch seat is a square structure with a hole and is assembled under the pad. The circumferential through holes and pin holes of the punch seat are aligned with the circumferential holes of the pad and the blanking die. The upper and lower planes of the punch seat are respectively flush with the bottom plane of the pad and the upper plane of the blanking die.

6. The die tool for the special-shaped stop washer with a hole as claimed in claim 5, characterized in that: The base is a square structure with holes, the lower plane of the base is in contact with and flush with a common hydraulic punching machine workbench, and the punching die tool is fixedly connected to the common hydraulic punching machine workbench by bolts through U-shaped grooves on both sides of the base.

7. The die tool for the special-shaped stop washer with a hole as claimed in claim 6, characterized in that: The blanking die is of a square structure, threaded holes and positioning pin holes for connection and fixing are arranged around the blanking die, and a square sink and a special-shaped stop gasket through hole are arranged in the middle of the blanking die.

8. The die tool for the special-shaped stop washer with a hole according to claim 7, characterized in that: The unloading plate has a square structure, and threaded holes for connection and fixing are arranged on the circumference of the unloading plate. A special-shaped stop gasket through hole is arranged in the middle of the unloading plate. The unloading rubber has a square structure, and smooth holes for screw connection are arranged on the circumference of the unloading rubber. A rectangular square hole is arranged in the middle of the unloading rubber. The blanking and punching die has a square structure, and screw smooth holes, threaded holes and positioning pin holes are arranged on the four sides of the blanking and punching die. A special-shaped stop gasket boss is arranged in the middle, and a through hole is arranged at the corresponding position of the special-shaped stop gasket boss.

9. The die tool for the special-shaped stop washer with a hole as claimed in claim 8, characterized in that: The punching punch is a cylindrical structure composed of three sections of shaft diameters of different diameters, the pushing block is a circular block structure, the discharger is a square structure, a special-shaped stop gasket boss is provided in the middle position of the discharger, and a through hole is provided at a corresponding position on the special-shaped stop gasket boss, the pushing rod is a cylindrical structure, arranged in the mold handle, and vertically placed in the axial through hole of the mold handle, the lower end of the pushing rod is in contact with the upper plane of the pushing block, and the pushing rod can slide up and down in the axial through hole of the mold handle.

10. A method for processing a holed special-shaped stopper washer, applied to the die tool of the holed special-shaped stopper washer as claimed in claim 1, characterized in that: The steps include: Cut the material into the size of δ1mm×75mm×1000mm according to the specification requirements, perform sheet metal processing, and obtain the blank; The blank is punched by a die tool to obtain a rough product of a special-shaped stop gasket part with a hole; The rough product of the holed special-shaped stop gasket part is deburred to obtain the finished product of the holed special-shaped stop gasket.

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