CN219054615U

CN219054615U - Combined cutter for processing sealing rubber cushion

Info

Publication number: CN219054615U
Application number: CN202223364505.5U
Authority: CN
Inventors: 陈祖静; 王焱
Original assignee: AVIC Guizhou Aircraft Co Ltd
Current assignee: AVIC Guizhou Aircraft Co Ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-23
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a combined cutter for processing a sealing rubber cushion, which comprises a large punch and a small punch, wherein the large punch is of an integrated structure formed by a large supporting part and a large forming part, the small punch is of an integrated structure formed by a small supporting part and a small forming part, a guide hole communicated with the large forming part is formed in the large supporting part along the axial direction of the large supporting part, the aperture of the guide hole corresponds to the outer diameter of the small supporting part, and the small punch is detachably arranged in the guide hole in the large punch and can move up and down in the guide hole along the axial direction of the guide hole. The combined cutter can meet the requirement of large-batch processing operation, greatly improves the interchangeability of sealing rubber gaskets in the same batch, effectively reduces the processing cost, reduces the labor intensity of operators, has a simple structure, is convenient to operate, can meet the processing requirement of the sealing rubber gaskets, has high practicability and high practical value, and is suitable for popularization and application.

Description

Combined cutter for processing sealing rubber cushion

Technical Field

The utility model relates to the technical field of processing and manufacturing of sealing rubber gaskets, in particular to a combined cutter for processing the sealing rubber gaskets.

Background

With the development of scientific technology in the aviation and aerospace fields, more and more aircrafts select workpieces made of rubber plates with different brands and different specifications to seal parts such as flange plates and pipeline joints, so that all parts of the aircrafts with sealing requirements can be well met, and the aircrafts have regular round or square structures and irregular special structures. For such a sealing gasket, in particular a circular sealing gasket, a plurality of positioning holes are also required to be arranged in the sealing gasket, and the specific structure is shown in fig. 1 and 2. In the prior production and processing process, a profiling line drawing method is generally adopted, a pattern line is drawn by a pattern line template, then scissors are directly used, an operator is used for manually cutting, and a direct blanking mode is adopted for processing and manufacturing the external structure of the sealing rubber gasket. The parts manufactured by the method have different shapes, poor interchangeability of parts, low dimensional accuracy and adverse assembly and interchange of downstream units because of the parts with the same figure number, and the parts are easy to discard if the assembly is not good. The sealing rubber cushion is relatively large in dosage, the existing profiling line drawing method is adopted, the problem that the appearance of the same part is inconsistent is easily caused, the qualified rate of finished products is low in order to avoid the sealing rubber cushion from being manufactured by purely manual cutting and processing, the processing efficiency is low, the requirement of mass use cannot be met, and the processing efficiency and the quality of finished products are improved in order to enable all parts of an aircraft with the sealing requirement to be well met, so that the combined cutter suitable for mass processing of the sealing rubber cushion is provided.

Disclosure of Invention

The utility model aims at solving the problems in the background technology, thereby providing a combined cutter with simple structure and convenient operation, and by using the combined cutter, the appearance and the inside of a sealing rubber cushion can be integrally formed, the processing efficiency is improved, the dimensional accuracy of the sealing rubber cushion is ensured, and the use requirement is met, in particular to the combined cutter for processing the sealing rubber cushion.

In order to solve the technical problems, the utility model adopts the following technical scheme: the combined cutter comprises a large punch and a small punch, wherein the large punch is of an integrated structure formed by a large supporting part and a large forming part, the small punch is of an integrated structure formed by a small supporting part and a small forming part, a guide hole communicated with the large forming part is formed in the large supporting part along the axial direction of the large supporting part, the aperture of the guide hole corresponds to the outer diameter of the small supporting part in the small punch, and the small punch is detachably arranged in the guide hole in the large punch and can move up and down along the axial direction of the guide hole.

Further, according to the combined cutter for processing the sealing rubber pad, the large supporting part is in a cylindrical structure, the large forming part is in a conical structure, the outer diameter of the large end of the large forming part is the same as that of the large supporting part, the front end face of the large forming part is further provided with an inward concave outline concave cavity surface which is communicated with the guide hole, the width of the outline concave cavity surface is larger than the aperture of the guide hole, and the large punch forms an integrated conical structure through the large supporting part and the large forming part.

Further, according to the combined cutter for processing the sealing rubber pad, the small supporting part is of a cylindrical structure, the small forming part is of a conical structure, the outer diameter of the large end of the small forming part is the same as that of the small supporting part, the front end face of the small forming part is further provided with an inward concave cavity face, the depth of the inward concave cavity face is larger than the length of the small forming part, the outer diameter of the small forming part is the same as that of the guide hole, and the small punch forms an integrated conical structure through the small supporting part and the small forming part.

Further, the combined cutter for processing the sealing rubber cushion disclosed by the utility model is characterized in that the outline concave cavity surface and the inner shape concave cavity surface are arranged in any one of regular round, square or elliptic structures or in irregular special-shaped structures.

Further, the combined cutter for processing the sealing rubber cushion further comprises a bolt hole positioning plate and a bolt hole punch, the appearance structure of the bolt hole positioning plate is identical to that of the sealing rubber cushion to be processed, a plurality of positioning bolt holes corresponding to the sealing rubber cushion to be processed are formed in the bolt hole positioning plate, and the bolt hole punch is detachably connected with the bolt hole positioning plate through the positioning bolt holes.

Further, the combined cutter for processing the sealing rubber pad comprises a rod body part, a transition part and an impact part, wherein an integrated structure is formed between the rod body part and the impact part through the transition part, the transition part is of a tapered structure gradually shrinking along the direction of the impact part, the outer diameter of the impact part is matched with the aperture of the positioning bolt hole, and the front end surface of the impact part is also provided with an inwards concave impact surface; the bolt hole punch is inserted into the positioning bolt hole by the impact part, so that the bolt hole punch is detachably connected with the bolt hole positioning plate.

Further, according to the combined cutter for processing the sealing rubber cushion, the concave impact surface is of a tapered structure which is gradually reduced along the direction of the transition part, and the depth of the concave impact surface is slightly larger than the thickness of the bolt hole positioning plate.

The combined cutter for processing the sealing rubber cushion can realize integral molding of the sealing rubber cushion by utilizing the large punch and the small punch which are matched with each other, so that the shapes of parts in the same batch are consistent, and compared with the existing purely manual cutting mode, the combined cutter for processing the sealing rubber cushion greatly improves the processing efficiency and improves the qualification rate of finished products; in addition, through the bolt hole locating plate and the bolt hole punch head which are configured, the formed sealing rubber cushion can be punched, so that the interchangeability and the outline dimension precision of the manufactured sealing rubber cushion are better. The combined cutter can meet the requirement of large-batch processing operation, greatly improves the interchangeability of sealing rubber gaskets in the same batch, effectively reduces the processing cost, reduces the labor intensity of operators, has a simple structure, is convenient to operate, can meet the processing requirement of the sealing rubber gaskets, has high practicability and high practical value, and is suitable for popularization and application.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a part to be machined;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the present utility model;

FIG. 4 is a schematic view of the structure of the large punch according to the present utility model;

FIG. 5 is a schematic view of the structure of the small punch of the present utility model;

FIG. 6 is a schematic view of the structure of the bolt hole punch of the present utility model;

FIG. 7 is a schematic view of the structure of the bolt hole positioning plate of the present utility model;

FIG. 8 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 7. .

The figure shows: 1-large punch, 11-large supporting part, 12-large forming part, 13-guide hole, 14-outline concave surface, 2-small punch, 21-small supporting part, 22-small forming part, 23-inner concave surface, 3-bolt hole positioning plate, 31-positioning bolt hole, 4-bolt hole punch, 41-rod body part, 42-transition part, 43-impact part and 44-inner concave impact surface.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms "upper", "inner", and the like, as used in the present specification, are merely for convenience of description and are not intended to limit the scope of the utility model, which is defined by the relative changes or modifications, without any substantial change in technical content, and are also considered as the scope of the utility model which can be practiced.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected", "provided" and "having a meaning of" connected "are to be interpreted in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It should be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

As shown in fig. 3 to 5, a composite tool for processing a seal cushion according to the present embodiment includes a large punch 1 and a small punch 2, the large punch 1 is formed as a single body by a large supporting portion 11 and a large forming portion 12, the small punch 2 is formed as a single body by a small supporting portion 21 and a small forming portion 22, a guide hole 13 communicating with the large forming portion 12 is provided in the large supporting portion 11 along the axial direction thereof, the diameter of the guide hole 13 corresponds to the outer diameter of the small supporting portion 21 in the small punch 2, and the small punch 2 is detachably provided in the guide hole 13 in the large punch 1 and is movable up and down in the axial direction thereof in the guide hole 13.

Further, according to the combined tool for processing the sealing rubber pad, the large supporting part 11 is in a cylindrical structure, the large forming part 12 is in a conical structure, the outer diameter of the large end of the large forming part 12 is the same as that of the large supporting part 11, the front end face of the large forming part 12 is further provided with an inward concave outline concave cavity surface 14, the outline concave cavity surface 14 is communicated with the guide hole 13, the width of the outline concave cavity surface 14 is larger than the aperture of the guide hole 13, and the large punch 1 forms an integrated conical structure through the large supporting part 11 and the large forming part 12.

Further, according to the combined tool for processing the sealing rubber pad, the small supporting part 21 is in a cylindrical structure, the small forming part 22 is in a conical structure, the outer diameter of the large end of the small forming part 22 is the same as that of the small supporting part 21, the front end surface of the small forming part 12 is also provided with an inward concave cavity surface 23, the depth of the inward concave cavity surface 13 is larger than the length of the small forming part 22, the outer diameter of the small forming part 22 is the same as that of the guide hole 13, and the small punch 2 forms an integrated conical structure through the small supporting part 21 and the small forming part 22; wherein the outer concave surface 14 and the inner concave surface 23 are arranged in any one of regular round, square or elliptic structures or in irregular abnormal structures. The specific setting mode can be set according to the structure of the sealing rubber pad to be processed, and the sealing rubber pad is matched with the sealing rubber pad.

The combined cutter adopting the embodiment has the use method that: the outer diameter of the annular part is punched by the large punch 1, then the large punch 1 and the small punch 2 which are in fit relation are combined together, and the inner diameter of the annular part is punched by the small punch 2, so that the integral molding processing of the sealing rubber gasket is completed. In a specific operation process, the large punch 1 and the small punch 2 can be matched with the existing manual press for use, and power is provided by the manual press, so that the production efficiency can be greatly improved, and the labor intensity of operators is reduced.

Example 2

This embodiment differs from embodiment 1 in that:

the combined cutter further comprises a bolt hole positioning plate 3 and a bolt hole punch 4, the appearance structure of the bolt hole positioning plate 3 is the same as that of the sealing rubber cushion to be processed, a plurality of positioning bolt holes 31 corresponding to the sealing rubber cushion to be processed are arranged in the bolt hole positioning plate 3, and the bolt hole punch 4 is detachably connected with the bolt hole positioning plate 3 through the positioning bolt holes 31; the bolt hole punch 4 comprises a rod body 41, a transition part 42 and an impact part 43, wherein an integral structure is formed between the rod body 41 and the impact part 43 through the transition part 42, the transition part 42 is in a tapered structure gradually shrinking along the direction of the impact part 43, the outer diameter of the impact part 43 is matched with the aperture of the positioning bolt hole 31, and an inwards concave impact surface 44 is further arranged on the front end surface of the impact part 43; the bolt hole punch 4 is inserted into the positioning bolt hole 31 by the impact part 43, so that the bolt hole punch 4 is detachably connected with the bolt hole positioning plate 3.

Further, for convenience of operation, the concave impact surface 44 is provided in a tapered structure gradually reduced in the direction of the transition portion 42, and the depth of the concave impact surface 44 is slightly larger than the thickness of the bolt hole positioning plate 3.

The combined cutter adopting the embodiment has the use method that: the sealing rubber pad processed in embodiment 1 is overlapped with the bolt hole positioning plate 3, the impact part 43 of the bolt hole punch 4 is inserted into the positioning bolt hole 31 in the bolt hole positioning plate 3, and the punching operation can be performed on the processed sealing rubber pad under the action of external force, so that corresponding holes are punched, and the finished product processing of the sealing rubber pad is completed. In a specific operation process, the bolt hole punch 4 can be matched with an existing manual press for use, and power is provided by the manual press, so that the production efficiency can be greatly improved, and the labor intensity of operators is reduced.

In summary, in the specific manufacturing process, the large punch 1 and the small punch 2 can be used alone or in combination, and the structural size of the combined cutter determines the inner diameter and the outer diameter of the large punch 1 according to the outer diameter of the rubber sealing gasket to be processed; the size of the structure of the small punch 2 is determined according to the inner diameter of the rubber sealing gasket to be processed; in addition, by arranging the bolt hole positioning plate 3 and the bolt hole punch 4, the bolt hole positioning plate 3 is required to be completely consistent with the shape of the rubber gasket to be processed, including the number, the size and the arrangement of the bolt holes on the bolt hole positioning plate; the size of the inner diameter and the outer diameter of the bolt hole punch 4 is determined according to the diameter of the bolt hole on the processed rubber sealing gasket.

Other aspects of the utility model are not specifically described and are well known to those skilled in the art.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement, etc. made to the above embodiments according to the technical substance of the present utility model falls within the protection scope of the present utility model.

Claims

1. A gang tool for processing sealed cushion, its characterized in that: the combined cutter comprises a large punch (1) and a small punch (2), wherein the large punch (1) is of an integrated structure formed by a large supporting part (11) and a large forming part (12), the small punch (2) is of an integrated structure formed by a small supporting part (21) and a small forming part (22), a guide hole (13) communicated with the large forming part (12) is formed in the large supporting part (11) along the axial direction of the large supporting part, the aperture of the guide hole (13) corresponds to the outer diameter of the small supporting part (21) in the small punch (2), and the small punch (2) is detachably arranged in the guide hole (13) in the large punch (1) and can move up and down along the axial direction of the guide hole (13).

2. A gang tool for machining a seal cushion according to claim 1, wherein: the large supporting part (11) is of a cylindrical structure, the large forming part (12) is of a conical structure, the outer diameter of the large end of the large forming part (12) is the same as that of the large supporting part (11), the front end face of the large forming part (12) is also provided with an inward concave outline concave cavity surface (14), the outline concave cavity surface (14) is communicated with the guide hole (13), the width of the outline concave cavity surface (14) is larger than the aperture of the guide hole (13), and the large punch (1) forms an integral conical structure through the large supporting part (11) and the large forming part (12).

3. A gang tool for machining a seal cushion according to claim 2, wherein: the small supporting part (21) is arranged into a cylindrical structure, the small forming part (22) is arranged into a conical structure, the outer diameter of the large end of the small forming part (22) is the same as that of the small supporting part (21), the front end face of the small forming part (22) is also provided with an inward concave inner concave cavity surface (23), the depth of the inner concave cavity surface (23) is larger than the length of the small forming part (22), the outer diameter of the small forming part (22) is the same as that of the guide hole (13), and the small punch (2) forms an integrated conical structure through the small supporting part (21) and the small forming part (22).

4. A gang tool for machining a seal cushion according to claim 3, wherein: the outline concave cavity surface (14) and the inner shape concave cavity surface (23) are arranged in any one of regular round, square or elliptic structures or in irregular special-shaped structures.

5. A gang tool for machining a seal cushion according to claim 1, wherein: the combined cutter is characterized by further comprising a bolt hole positioning plate (3) and a bolt hole punch (4), wherein the appearance structure of the bolt hole positioning plate (3) is identical to that of a sealing rubber pad to be processed, a plurality of positioning bolt holes (31) corresponding to the sealing rubber pad to be processed are formed in the bolt hole positioning plate (3), and the bolt hole punch (4) is detachably connected with the bolt hole positioning plate (3) through the positioning bolt holes (31).

6. A gang tool for machining a seal cushion according to claim 5, wherein: the bolt hole punch (4) comprises a rod body part (41), a transition part (42) and an impact part (43), wherein an integrated structure is formed between the rod body part (41) and the impact part (43) through the transition part (42), the transition part (42) is of a tapered structure gradually shrinking along the direction of the impact part (43), the outer diameter of the impact part (43) is matched with the aperture of the positioning bolt hole (31), and an inwards concave impact surface (44) is further arranged on the front end surface of the impact part (43); the bolt hole punch (4) is inserted into the positioning bolt hole (31) by utilizing the impact part (43), so that the bolt hole punch (4) is detachably connected with the bolt hole positioning plate (3).

7. A gang tool for machining a seal cushion according to claim 6, wherein: the concave impact surface (44) is of a tapered structure which gradually reduces along the direction of the transition part (42), and the depth of the concave impact surface (44) is slightly larger than the thickness of the bolt hole positioning plate (3).