CN217861731U

CN217861731U - Hand-held type felt sealing circle die

Info

Publication number: CN217861731U
Application number: CN202221658320.2U
Authority: CN
Inventors: 车剑昭; 王玉妍; 闫宝强; 曹莎莎
Original assignee: AVIC Xian Aircraft Industry Group Co Ltd
Current assignee: AVIC Xian Aircraft Industry Group Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-22
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a hand-held felt sealing ring punching die, which comprises an upper die, a fixed plate, an outer punching blade, an inner punching blade and a discharging mechanism; the upper die is of a flange type structure, and the fixing plate is of an annular plate-shaped structure and is fixedly connected with the upper die; the lower part of the outer punching edge is an outer conical cutting edge; the lower part of the inner punching blade is an inner conical cutting edge; the inner punching blade is fixedly embedded in the outer punching blade and connected with the fixed plate, and the ejection part of the discharging mechanism is slidably embedded between the outer punching blade and the inner punching blade. The die handle is hit to enable the inner-shaped punching blade to punch the felt blank downwards simultaneously with the outer-shaped punching blade, punching processing of the felt sealing ring part is completed, the part and waste material are demoulded through the unloading mechanism, and the die handle has universal applicability to manual punching processing of the airplane felt sealing ring part.

Description

Hand-held type felt sealing circle die

Technical Field

The application relates to the technical field of aircraft manufacturing, in particular to a hand-held type felt sealing ring punching die.

Background

The sealing ring is used as a standard part with a large application amount in an airplane system structure, the outer shape structure of the sealing ring is in a ring shape with different sizes and specifications, and the sealing ring is made of felt. According to the characteristic that the felt material has low shear strength, in order to reduce the part processing cost, the precision requirement of a common felt sealing ring part can be met through manual punching processing. The traditional punching tool for the felt sealing ring part is an integral punching rod with sharp knife edges on the inner layer and the outer layer, punched parts and waste materials enter between the inner knife edge and the outer knife edge of the punching rod, workers need to pull the parts out through tools such as a sharp cone, the operation is complex, the flatness of the parts pulled out from the position between the inner knife edge and the outer knife edge of the punching rod is low, and a secondary flattening process is needed, so that the part processing efficiency is directly influenced. Therefore, a mold structure which is simple in structure, convenient to operate and capable of automatically discharging needs to be considered, the current situations that the production processes of felt sealing ring parts are multiple and the production efficiency is low are solved, and the development and production requirements of the airplane are met.

Disclosure of Invention

The application aims at providing a hand-held type felt sealing ring die-cutting processing that can be applicable to all kinds of felt sealing ring parts.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a hand-held type felt sealing ring punching die comprises an upper die, a fixing plate, an outer punching blade, an inner punching blade and a discharging mechanism; the upper die is of a flange type structure, the central convex part is a die shank, and the center of the upper die is provided with a multi-step through hole; the fixed plate is of an annular plate-shaped structure, an annular mounting groove matched with the outer punching blade is arranged on the annular inner ring, and the surface with the mounting groove is fixedly connected with the bottom surface of the upper die; the upper part of the outer punching blade is of a stepped cylindrical hollow structure, the lower part of the outer punching blade is of an outer conical cavity structure, the upper stepped cylindrical surface is clamped in the annular mounting groove of the fixing plate, and the outlet at the bottom of the lower cavity is of an outer conical cutting edge; the upper part of the inner punching blade is of a stepped shaft hollow structure, the lower part of the inner punching blade is of an inner tapered cavity structure, the upper stepped shaft is embedded in a cavity at the upper part of the outer punching blade, and the bottom of the lower cavity is of an inner tapered cutting edge; the discharging mechanism comprises a discharger, an ejector rod, a top plate, a striking rod, a spring and a screw plug, wherein the discharger is of a hollow cylindrical structure with a flange shoulder, the radial cross-sectional shape of the discharger is consistent with the geometric shape of a sealing ring part, the discharger is arranged between an outer punching blade and an inner punching blade, the top plate is of a disc shape with threads at the center and is arranged at the lower end of the multi-step through hole of the upper die; the ejector rod penetrates through the inner punching edge and is arranged between the discharger and the top plate; the striking rod is arranged in the central through hole of the inner punching edge and is connected with the top plate through threads; the screw plug and the spring are arranged in the multistage step through hole of the upper die, the spring is positioned on the upper surface of the top plate through the mandrel of the knock-out rod, and the screw plug is positioned at the upper end of the multistage step through hole. And (3) placing the felt blank on a working table surface, enabling a discharger and a beating rod in the discharging mechanism to firstly press the blank, beating a die handle to enable an inner punching blade and an outer punching blade to be punched downwards, and completing punching of the felt sealing ring part.

Furthermore, after the die is assembled, both an unloader and a striking rod in the unloading mechanism extend out of the outer conical cutting edge of the outer profile punching blade and the inner conical cutting edge of the inner profile punching blade by about 0.5mm.

Furthermore, the outer conical cutting edge and the inner conical cutting edge are in a zero-thickness cutting edge form.

This application utilizes the basic principle of stamping forming processing, to the soft characteristic of felt material matter, adopt the die-cut blade form of zero thickness, through the multiple nested formula structure of mould operating element and can realize devices such as shedding mechanism of synchronous compound unloading, accomplish the part inner form and appearance die-cut simultaneously, the part unloads the drawing of patterns simultaneously with the waste material, finally realize the die-cut processing that the felt ring part of obturating is quick, simple, high-efficient, low-cost, it has general suitability to the manual die-cut processing of aircraft felt ring class part, also can popularize in the die-cut processing of parts of soft materials such as rubber pad.

The present application is described in further detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 shows a structure diagram of a felt sealing ring part;

FIG. 2 is a view showing the internal structure of a die for a felt sealing ring;

FIG. 3 is a view of the interior of the profile punch edge junction;

FIG. 4 is an interior view of the female pierce knot;

FIG. 5 is a view showing the construction of the discharger;

FIG. 6 shows a structural view of the striking rod.

The numbering in the figures illustrates: 1. a sealing ring part; 2. an upper die; 3. a fixing plate; 4. punching edges on the appearance; 5. an inner-shaped punching edge; 6. a discharge mechanism; 7. an annular mounting groove; 8. a multi-step through hole; 9. a die shank; 10. a stepped cylindrical surface; 11. an outer tapered edge; 12. an upper stepped shaft; 13. an inner tapered cutting edge; 14. beating a rod; 15. a discharger; 16. a top rod; 17. a top plate; 18. a spring; 19. a plug screw; 20. core shaft

Detailed Description

FIG. 1 is a view showing the structure of a felt sealing ring component 1.

Fig. 2 to 6 show that a hand-held felt sealing ring punching die comprises an upper die 2, a fixing plate 3, an outer shape punching blade 4, an inner shape punching blade 5 and a discharging mechanism 6; the upper die 2 is of a flange type structure, the central convex part is a die handle 9, and the center of the upper die 2 is provided with a multi-step through hole 8; the fixed plate 3 is of an annular plate-shaped structure, an annular mounting groove 7 matched with the outer punching blade 4 is arranged on the annular inner ring, and the surface with the mounting groove is fixedly connected with the bottom surface of the upper die 2; the upper part of the outline punching blade 4 is of a stepped cylindrical hollow structure, the lower part of the outline punching blade is of an external conical cavity structure, the upper stepped cylindrical surface 10 is clamped in the annular mounting groove 7 of the fixing plate 3, and the bottom outlet of the lower cavity is of an external conical cutting edge 11; the upper part of the inner-shaped punching blade 5 is of a stepped shaft hollow structure, the lower part of the inner-shaped punching blade is of an inner-tapered cavity structure, the upper stepped shaft 12 is embedded in the cavity at the upper part of the outer-shaped punching blade 4, and the bottom of the lower cavity is provided with an inner-tapered cutting edge 13; the discharging mechanism 6 comprises a discharger 15, an ejector rod 16, a top plate 17, a striking rod 14, a spring 18 and a plug screw 19, wherein the discharger 15 is of a hollow cylindrical structure with a flange shoulder, the radial cross-sectional shape of the discharger is consistent with the geometric shape of the sealing ring part 1, the discharger is arranged between the outer punching blade 4 and the inner punching blade 5, and the top plate 17 is of a disc shape with a thread at the center and is arranged at the lower end of the multi-step through hole 8 of the upper die 2; the mandril 16 passes through the inner-shaped punching edge 5 and is arranged between the discharger 15 and the top plate 17; the knock-out pin 14 is arranged in the central through hole of the inner punching edge 5 and is connected with the top plate 17 through threads; the screw plug 19 and the spring 18 are arranged in the multi-step through hole 8 of the upper die 2, the spring 18 is positioned and placed on the upper surface of the top plate 17 through the mandrel 20 of the striking rod 14, and the screw plug 19 is positioned at the upper end of the multi-step through hole 8. And (3) placing the felt blank on a working table, enabling a discharger 15 and a beating rod 14 in the discharging mechanism 6 to firstly press the blank, beating the die handle 9 to enable the inner punching blade 5 to be downwards punched with the outer punching blade 4, and finishing punching of the felt sealing ring part 1.

After the die is assembled, both the discharger 15 and the striking rod 14 in the discharging mechanism 6 extend out of the outer tapered cutting edge 11 of the outer profile punching blade 4 and the inner tapered cutting edge 13 of the inner profile punching blade 5 by about 0.5mm.

The outer tapered edge 11 and the inner tapered edge 13 are zero thickness edges.

The felt blank is placed on a workbench surface made of soft non-metal materials, the mould handle 9 is held by hand, so that a discharger 15 and a striking rod 14 in the discharging mechanism 6 firstly press the blank, and the punching die applies force downwards for punching by striking the mould handle 9; after the punched sealing ring part 1 is separated from the felt blank, the sealing ring part 1 and the waste material entering the punching die are ejected out and demolded by a discharger 15 and a striking rod 14 in a discharging mechanism 6 respectively.

Claims

1. A hand-held type felt sealing ring punching die is characterized by comprising an upper die, a fixing plate, an outer punching blade, an inner punching blade and a discharging mechanism; the upper die is of a flange type structure, the central convex part is a die shank, and the center of the upper die is provided with a multi-step through hole; the fixing plate is of an annular plate-shaped structure, an annular mounting groove matched with the appearance punching blade is formed in the annular inner ring, and the surface with the mounting groove is fixedly connected with the bottom surface of the upper die; the upper part of the outline punching blade is of a stepped cylindrical hollow structure, the lower part of the outline punching blade is of an outer conical cavity structure, the upper stepped cylindrical surface is clamped in the annular mounting groove of the fixing plate, and the bottom outlet of the lower cavity is of an outer conical cutting edge; the upper part of the inner-shaped punching blade is of a stepped shaft hollow structure, the lower part of the inner-shaped punching blade is of an inner-tapered cavity structure, the upper stepped shaft is embedded in the cavity at the upper part of the outer-shaped punching blade, and the bottom of the lower cavity is of an inner-tapered cutting edge; the discharging mechanism comprises a discharger, an ejector rod, a top plate, a striking rod, a spring and a screw plug, wherein the discharger is of a hollow cylindrical structure with a flange shoulder, the radial cross-sectional shape of the discharger is consistent with the geometric shape of a sealing ring part, the discharger is arranged between an outer punching blade and an inner punching blade, the top plate is of a disc shape with threads at the center and is arranged at the lower end of the multi-step through hole of the upper die; the ejector rod penetrates through the inner punching edge and is arranged between the discharger and the top plate; the knock-out pin is arranged in the central through hole of the inner punching edge and is connected with the top plate through threads; the screw plug and the spring are arranged in the multistage step through hole of the upper die, the spring is positioned on the upper surface of the top plate through the mandrel of the striking rod, the screw plug is positioned at the upper end of the multistage step through hole, the felt blank is placed on the working table surface, the unloader and the striking rod in the unloading mechanism firstly compress the blank, and the die handle is struck to enable the inner punching blade to be downwards punched together with the outer punching blade, so that the punching of the felt sealing ring part is completed.

2. A hand-held die for a felt sealing ring according to claim 1, wherein after the die is assembled, the stripper and the striking rod of the stripper mechanism extend beyond the outer tapered edge of the outer profile punch and the inner tapered edge of the inner profile punch by about 0.5mm.

3. A hand held felt sealing ring die as claimed in claim 1 wherein said outer and inner tapered cutting edges are in the form of zero thickness edges.