Punching die structure in cylinder

Abstract

The utility model belongs to the technical field of punching, and relates to a punching die structure in a cylinder, which comprises a base; an inner circular shaft; the inner circular shaft fixing seat is connected to the base; one side of the inner circular shaft is connected to the inner circular shaft fixing seat; the inner circular shaft supporting plate is connected to the base, and the inner circular shaft supporting plate and the inner circular shaft fixing base are arranged in a spaced mode; the other side of the inner circular shaft is arranged on an inner circular shaft supporting plate; the punch unit is arranged in the inner circular shaft; the punching female die unit is arranged on the base; the punching power unit is arranged on the base; and the punching power unit is matched with the punch unit. After the structure is adopted, the inner punching structure has the beneficial effects that the cylinder is punched by adopting the inner punching structure, and burrs generated in the punching process are positioned on the outer surface of the cylinder, so that the subsequent burr cleaning is simple.

Description

Technical Field

[0001] This utility model belongs to the field of punching technology, specifically, it relates to a cylindrical internal punching die structure. Background Technology

[0002] Traditional cylindrical punching dies employ an external punching structure, where the punch operates on the outer circumference of the cylinder. This method results in burrs being located on the inner surface of the cylinder, making subsequent burr removal extremely difficult and directly increasing manufacturing costs. Besides the equipment and labor costs required for burr removal, the increased scrap rate due to burrs can also raise material costs. Therefore, improvements are necessary. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a cylindrical internal punching die structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] As one aspect of this utility model, a cylindrical internal punching die structure is proposed, comprising:

[0006] Base;

[0007] Inner circular shaft;

[0008] An inner circular shaft fixing seat is connected to a base; one side of the inner circular shaft is connected to the inner circular shaft fixing seat.

[0009] An inner circular shaft support plate is connected to a base, and the inner circular shaft support plate and the inner circular shaft fixing seat are spaced apart; the other side of the inner circular shaft is disposed on the inner circular shaft support plate.

[0010] A punch unit, wherein the punch unit is disposed inside the inner circular shaft;

[0011] A punching die unit is provided inside a punching die fixing seat, which is connected to a base. The punching die fixing seat is located between the inner circular shaft support plate and the inner circular shaft fixing seat. The punching die unit is located directly below the punch unit.

[0012] A punching power unit is mounted on a base; the punching power unit cooperates with a punching unit.

[0013] Optionally, the inner circular shaft fixing seat is provided with an inner circular shaft mounting hole for mounting the inner circular shaft, a limiting plane is formed in the inner circular shaft mounting hole, and a connecting plane that cooperates with the limiting plane is provided on the inner circular shaft.

[0014] Optionally, the inner circular shaft fixing seat has a first limiting hole on its side, which is connected to the inner circular shaft mounting hole. A first limiting pin is provided in the first limiting hole. When the inner circular shaft is connected to the inner circular shaft mounting hole, the first limiting pin cooperates with the first limiting groove on the side of the inner circular shaft.

[0015] Optionally, a support plate is detachably connected to the inner cylindrical shaft support plate by fasteners, and the support plate presses and limits the inner cylindrical shaft.

[0016] Optionally, the inner circular shaft has a mounting groove, and the punch unit is connected to the mounting groove; the inner circular shaft has a power clearance through hole, the center line of which coincides with the axis of the inner circular shaft, and the power clearance through hole is connected to the mounting groove; the movable end of the punching power unit is movably inserted into the power clearance through hole and cooperates with the punch unit in the mounting groove; the mounting groove has a punch clearance through hole.

[0017] Optionally, the punch unit includes a punch fixing plate, on which a punch is connected, and a punch wedge is connected to the punch fixing plate, the punch wedge pressing the punch onto the punch fixing plate. The punch fixing plate has a stepped hole for punch installation. The punch mates with a punch clearance through hole, and the center line of the punch coincides with the center line of the punch clearance through hole. When the punch fixing plate is placed in the mounting groove, a discharge elastic element is provided between the punch fixing plate and the inner bottom of the mounting groove. A punch pressure plate is detachably connected to the opening of the mounting groove by fasteners.

[0018] Optionally, the outer surface of the punch plate is flush with the outer surface of the inner cylindrical shaft.

[0019] Optionally, the punching die unit includes a punching die body connected to a punching die fixing seat; the upper end face of the punching die body forms an upper arc surface that matches the outer surface of the inner cylindrical shaft; the punching die body has a blanking through hole located directly below the punch; the center line of the blanking through hole coincides with the center line of the punch clearance through hole.

[0020] Optionally, the punching power unit includes a power unit connected to a base; a punch moving wedge is detachably connected to the movable end of the power unit, the punch moving wedge is movably inserted into the power clearance through hole, and then cooperates with the punch wedge.

[0021] Optionally, an upper pressure block is detachably connected to the punching die holder via fasteners.

[0022] The beneficial effects of the cylindrical internal punching mold structure of this utility model are specifically reflected in the following aspects: the internal punching structure is used to punch the cylinder, and the burrs generated during the punching process are located on the outer surface of the cylinder, which makes subsequent burr cleaning simple. In addition, the cylindrical internal punching mold structure is simple and easy to operate. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0024] Figure 1 This is a three-dimensional structural view of the cylindrical inner punching die structure of this utility model;

[0025] Figure 2 This is a structural cross-sectional view of the cylindrical inner punching die structure of this utility model;

[0026] Figure 3 This is an exploded front view of the cylindrical inner punching die structure of this utility model;

[0027] Figure 4 This is an exploded view of the cylindrical inner punching die structure of this utility model;

[0028] Figure 5 This is a cross-sectional view of the cylindrical inner punching die structure of this utility model in use. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] One embodiment of this application provides a cylindrical internal punching die structure, such as... Figures 1-5 As shown, it includes: a base 1, which serves as a support;

[0031] Inner cylindrical shaft 2, used for mounting the cylinder 9 to be punched;

[0032] An inner circular shaft fixing seat 3 is connected to a base 1; one side of the inner circular shaft 2 is connected to the inner circular shaft fixing seat 3.

[0033] An inner circular shaft support plate 4 is connected to the base 1, and the inner circular shaft support plate 4 is spaced apart from the inner circular shaft fixing seat 3; the other side of the inner circular shaft 2 is provided on the inner circular shaft support plate 4.

[0034] Punch unit 5, wherein the punch unit 5 is disposed inside the inner circular shaft 2;

[0035] A punching die unit 6 is disposed inside a punching die fixing seat 7, which is connected to a base 1 and is located between an inner circular shaft support plate 4 and an inner circular shaft fixing seat 3; the punching die unit 6 is located directly below the punch unit 5.

[0036] A punching power unit 8 is mounted on a base 1. The punching power unit 8 cooperates with the punching unit 5. The punching power unit 8 operates against the punching unit 5, causing the punching unit 5 to cooperate with the punching die unit 6 to punch the cylinder 9 mounted on the inner cylindrical shaft 2.

[0037] Furthermore, in this embodiment, as Figures 3-4 As shown, the inner shaft fixing seat 3 has an inner shaft mounting hole 31 for mounting the inner shaft 2. A limiting plane 32 is formed in the inner shaft mounting hole 31. The inner shaft 2 has a connecting plane that cooperates with the limiting plane 32. This design ensures that when the inner shaft 2 is connected to the inner shaft mounting hole 31, the inner shaft 2 and the inner shaft fixing seat 3 will not rotate relative to each other. The side of the inner shaft fixing seat 3 has a first limiting hole 33, which is connected to the inner shaft mounting hole 31. A first limiting pin 34 is provided in the first limiting hole 33. When the inner shaft 2 is connected to the inner shaft mounting hole 31, the first limiting pin 34 cooperates with the first limiting groove 21 on the side of the inner shaft 2, further fixing the inner shaft 2 relatively within the inner shaft fixing seat 3.

[0038] Furthermore, in this embodiment, as Figure 1 and Figure 3 As shown, a support plate 41 is detachably connected to the inner cylindrical shaft support plate 4 by fasteners. The support plate 41 presses and limits the inner cylindrical shaft 2, making the inner cylindrical shaft 2 more stable. In use, first install the cylinder 9 to be punched on the inner cylindrical shaft 2, and then connect the inner cylindrical shaft support plate 4 and the support plate 41 into place.

[0039] Furthermore, in this embodiment, as Figures 3-4As shown, the inner circular shaft 2 has a mounting groove 22, and the punch unit 5 is connected to the mounting groove 22; the inner circular shaft 2 has a power clearance through hole 23, the center line of the power clearance through hole 23 coincides with the axis of the inner circular shaft 2, and the power clearance through hole 23 is connected to the mounting groove 22; the movable end of the punching power unit 8 is movably inserted into the power clearance through hole 23 and cooperates with the punch unit 5 in the mounting groove 22; the mounting groove 22 has a punch clearance through hole 24.

[0040] Specifically, in this embodiment, such as Figures 3-4 As shown, the punch unit 5 includes a punch fixing plate 51, a punch 52 connected to the punch fixing plate 51, and a punch wedge 53 connected to the punch fixing plate 51. The punch wedge 53 presses the punch 52 onto the punch fixing plate 51. The punch fixing plate 51 has a stepped hole for installing the punch 52. The punch 52 cooperates with the punch clearance through hole 24, which allows only the punch 52 to pass through. The center line of the punch 52 coincides with the center line of the punch clearance through hole 24. When the punch fixing plate 51 is placed in the mounting groove 22, a discharge elastic element 54 is provided between the punch fixing plate 51 and the inner bottom of the mounting groove 22. A punch pressure plate 55 is detachably connected to the groove opening of the mounting groove 22 by fasteners. The outer surface of the punch pressure plate 55 is flush with the outer surface of the inner cylindrical shaft 2, which facilitates the adaptability of the cylinder 9.

[0041] Specifically, in this embodiment, such as Figures 2-4 As shown, the punching die unit 6 includes a punching die body 61, which is connected to the punching die fixing base 7. The upper end face of the punching die body 61 forms an upper arc surface 62 that matches the outer surface of the inner cylindrical shaft 2. The punching die body 61 is provided with a blanking through hole 63, which is located directly below the punch 52. The center line of the blanking through hole 24 coincides with the center line of the punch clearance through hole 24.

[0042] Furthermore, in this embodiment, an upper pressure block 10 is detachably connected to the punching die fixing seat 7 via fasteners. The upper pressure block 10 presses the cylinder 9 on the inner cylindrical shaft 2, making the punching process more stable.

[0043] Furthermore, in this embodiment, as Figure 1 and Figure 3As shown, the punching power unit 8 includes a power unit 81, which is connected to the base 1. The power unit 81 is a hydraulic cylinder, the structure of which is existing technology and will not be described in detail here. A punch moving wedge 82 is detachably connected to the movable end of the power unit 81. The punch moving wedge 82 is movably inserted into the power clearance through hole 23 and then cooperates with the punch wedge 53. During operation, the power unit 81 pushes the punch moving wedge 82, and the punch... The moving wedge 82 overcomes the elastic force of the unloading elastic element 54, and moves the punch wedge 53, punch fixing plate 51, and punch 52 together toward the punching die unit 6. The punch 52 moves downward to punch the cylinder 9 on the inner cylindrical shaft 2, and the punching waste falls into the unloading through hole 24. The power unit 81 retracts, the punch moving wedge 82 retracts, and under the action of the unloading elastic element 54, the punch wedge 53, punch fixing plate 51, and punch 52 move upward together to complete the reset.

[0044] In summary, the beneficial effects of the cylindrical internal punching die structure of this application are as follows: the internal punching structure is used to punch the cylinder, and the burrs generated during the punching process are located on the outer surface of the cylinder, which makes subsequent burr cleaning simple. In addition, the cylindrical internal punching die structure is simple and easy to operate.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0047] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0049] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A structure of a piercing die in a cylinder, characterized by comprising: It includes: Base; Inner circular shaft; Inner circular shaft fixing seat, which is connected to the base; One side of the inner circular shaft is connected to the inner circular shaft fixing seat; Inner circular shaft support plate, which is connected to the base, and is spaced apart from the inner circular shaft fixing seat; the other side of the inner circular shaft is located on the inner circular shaft support plate; Punch unit, which is located in the inner circular shaft; Piercing die unit, which is located in the piercing die fixing seat, which is connected to the base, and is located between the inner circular shaft support plate and the inner circular shaft fixing seat; the piercing die unit is located directly below the punch unit; Piercing power unit, which is located on the base; the piercing power unit cooperates with the punch unit.

2. The structure of a piercing die in a cylinder according to claim 1, wherein A inner circular shaft mounting hole for mounting the inner circular shaft is formed on the inner circular shaft fixing seat, and a limiting plane is formed in the inner circular shaft mounting hole; a connecting plane is provided on the inner circular shaft to cooperate with the limiting plane.

3. The structure of a piercing die in a cylinder according to claim 2, wherein A first limiting hole is formed on the side of the inner circular shaft fixing seat, which is in communication with the inner circular shaft mounting hole; a first limiting pin is arranged in the first limiting hole; when the inner circular shaft is connected to the inner circular shaft mounting hole, the first limiting pin cooperates with the first limiting groove on the side of the inner circular shaft.

4. The piercing die structure in a cylinder according to claim 1, wherein A support pressing plate is detachably connected to the inner circular shaft support plate by fasteners; the support pressing plate presses and limits the inner circular shaft.

5. The piercing die structure in a cylinder according to claim 1, wherein An installation groove is formed on the inner circular shaft; the punch unit is connected to the installation groove; a power accommodation through hole is formed in the inner circular shaft, the center line of the power accommodation through hole coincides with the axis of the inner circular shaft, the power accommodation through hole is in communication with the installation groove; the movable end of the piercing power unit is movably arranged in the power accommodation through hole and cooperates with the punch unit in the installation groove; a punch accommodation through hole is formed in the installation groove.

6. The piercing die structure in a cylinder according to claim 5, wherein The punch unit includes a punch fixing plate, a punch connected to the punch fixing plate, and a punch wedge connected to the punch fixing plate, which presses the punch on the punch fixing plate; a stepped hole is formed on the punch fixing plate for mounting the punch; the punch cooperates with the punch accommodation through hole, and the center line of the punch coincides with the center line of the punch accommodation through hole; when the punch fixing plate is arranged in the installation groove, a discharging elastic member is arranged between the punch fixing plate and the inner bottom of the installation groove; a punch pressing plate is detachably connected to the groove opening of the installation groove by fasteners.

7. The piercing die structure in a cylinder according to claim 6, wherein The outer surface of the punch pressing plate is flush with the outer surface of the inner circular shaft.

8. The structure of a piercing die in a cylinder according to claim 6, wherein The piercing die unit includes a piercing die body connected to the piercing die fixing seat; an upper arc surface is formed on the upper end surface of the piercing die body to match the outer surface of the inner circular shaft; a discharging through hole is formed on the piercing die body, which is located directly below the punch; the center line of the discharging through hole coincides with the center line of the punch accommodation through hole.

9. The structure of a piercing die in a cylinder according to claim 8, wherein The piercing power unit includes a power part connected to the base; a punch moving wedge is detachably connected to the movable end of the power part; the punch moving wedge is movably arranged in the power accommodation through hole and cooperates with the punch wedge.

10. The piercing die structure in a cylinder according to claim 1, wherein The upper pressing block is detachably connected to the punching die fixed seat through a fastener.

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