CN212598277U

CN212598277U - Improved punch for inclined plane punching

Info

Publication number: CN212598277U
Application number: CN202021213838.6U
Authority: CN
Inventors: 陈荣; 陆石平; 周孚鹏
Original assignee: Xiangxin Technology Co Ltd
Current assignee: Xiangxin Technology Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-26
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses an improved punch for inclined plane punching, which is in a round rod shape; the bottom surface of the punch is of a special-shaped structure, and the bottom surface is a left horizontal section, a left inclined section, a right inclined section and a right horizontal section from left to right; the width of the left level section is at least 1 mm; the right end of the left horizontal section is connected with the left end of the left inclined plane section; the left inclined plane section inclines downwards from left to right, and after the inclined plane section inclines, the left end is 1mm lower than the left end. The utility model discloses simple structure, the during operation utilizes left level section, right level section and material contact, can not take place to collapse and splits, recycles left inclined plane section and the sharp face that forms of right inclined plane cooperation and realizes punching a hole, based on drift bottom surface shape, can make the high-order and the low level on inclined plane contact with drift bottom surface simultaneously basically, when guaranteeing to punch a hole and accomplish, reduces the drift and eats the mould die stroke, reduces the friction to the dashing wall when the drift withdraws from.

Description

Improved punch for inclined plane punching

Technical Field

The utility model relates to a drift, specific improved generation drift that is used for inclined plane to punch a hole that drift eat into few, to the hole wall friction few that says so.

Background

On the structural molded surface of a conventional large automobile die, a punched hole with a certain angle is formed, the punched hole is not vertical to the surface of a product, namely, the surface of the product has a 5-30-degree included angle with the axis of the punched hole. The flat punch shown in fig. 1 is generally used for processing the hole, that is, the lower end of the punch is a flat surface, and when the flat punch punches the hole, as shown in fig. 2, one side of the punch is firstly contacted with a material, and the punch needs to be drawn into a die cavity die in order to complete the punching, so that the punch and the hole surface of a product are severely motored when the punch retracts. Meanwhile, the single point of the punch is stressed first, and lateral force is generated by unidirectional punching, so that the service life and the precision of the punch are influenced.

In view of the above disadvantages, the industry has proposed a bevel punch as shown in fig. 3, which uses a bevel adapted to the surface to be punched, and attempts to achieve synchronous contact between the bottom surface of the punch and the material, thereby reducing the stroke of the punch into the die, but the punch of this structure receives a very large transverse force due to the existence of the unidirectional bevel when working as shown in fig. 4, and the punch a is prone to crack due to its sharpness.

To sum up, the drift of two kinds of structures at present all respectively has not enough, and need to appear a novel drift that is both durable in the trade, eat into a small amount when punching a hole simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough that prior art exists, provide one kind and eat when punching a hole less, to the hole wall friction less improved generation drift that is used for the inclined plane to punch a hole.

In order to achieve the above object, the utility model adopts the following technical scheme: an improved punch for inclined plane punching, the punch is in a round rod shape; the bottom surface of the punch is of a special-shaped structure, and the bottom surface is a left horizontal section, a left inclined section, a right inclined section and a right horizontal section from left to right; the width of the left level section is at least 1 mm; the right end of the left horizontal section is connected with the left end of the left inclined plane section; the left inclined plane section inclines downwards from left to right, and after the inclined plane section inclines, the left end is 1mm lower than the left end; the horizontal distance from the right end of the left inclined plane section to the left edge of the punch is two fifths of the diameter of the punch; the right end of the left inclined plane section is connected with the left end of the right inclined plane section; the right end of the right inclined plane section is higher than the left end, and the right end of the right inclined plane section is connected with the left end of the right horizontal section; the width of the right level section is at least 1 mm.

Furthermore, the horizontal distance from the left end of the right inclined plane section to the right edge of the punch is three fifths of the diameter of the punch.

Furthermore, the left inclined plane section and the right inclined plane section are matched to form a pointed surface.

Furthermore, the connecting line of the left end of the left inclined plane section and the right end of the right inclined plane section is consistent with the inclination of the punched inclined plane.

The utility model discloses simple structure, the during operation utilizes left level section, right level section and material contact, can not take place to collapse and splits, recycles left inclined plane section and the sharp face that forms of right inclined plane cooperation and realizes punching a hole, based on drift bottom surface shape, can make the high-order and the low level on inclined plane contact with drift bottom surface simultaneously basically, when guaranteeing to punch a hole and accomplish, reduces the drift and eats the mould die stroke, reduces the friction to the dashing wall when the drift withdraws from.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and together with the description, serve to explain the principles of the specification.

Fig. 1 is a schematic view of a conventional flat bottom punch.

Fig. 2 is a schematic view of a conventional flat bottom punch in punching.

Fig. 3 is a schematic structural view of a bevel punch.

Fig. 4 is a schematic structural view of the bevel punch in punching. .

Fig. 5 is a schematic structural diagram of the present invention.

Fig. 6 is a schematic view of the working area and the material matching in punching.

Detailed Description

Various exemplary embodiments of the present specification will now be described in detail with reference to the accompanying drawings.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "left", "right", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example (b):

as shown in fig. 5 and 6, the punch 1 is in a round bar shape; the bottom surface of the punch 1 is of a special-shaped structure, and the bottom surface is a left horizontal section 2, a left inclined section 3, a right inclined section 4 and a right horizontal section 5 from left to right; the width of the left level section 2 is 1 mm; the right end of the left horizontal section 2 is connected with the left end of the left inclined section 3; the left inclined surface section 3 is inclined downwards from left to right, and after the inclined section is inclined, the left end is 1mm lower than the left end; the horizontal distance from the right end of the left inclined plane section 3 to the left edge of the punch is two fifths of the diameter of the punch 1; the right end of the left inclined plane section 3 is connected with the left end of the right inclined plane section 4; the right end of the right inclined plane section 4 is higher than the left end, and the right end of the right inclined plane section 4 is connected with the left end of the right horizontal section 5; the width of the right level section 5 is 1 mm. The horizontal distance from the left end of the right inclined plane section 4 to the right edge of the punch 1 is three fifths of the diameter of the punch 1. The left inclined plane section 3 and the right inclined plane section 4 are matched to form a pointed surface. The connecting line of the left end of the left inclined plane section 3 and the right end of the right inclined plane section 4 is consistent with the inclination of the punched inclined plane.

The foregoing description of the embodiments of the present specification has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the application is defined by the appended claims.

Claims

1. An improved punch for inclined plane punching, which is characterized in that: the punch is in a round rod shape; the bottom surface of the punch is of a special-shaped structure, and the bottom surface is a left horizontal section, a left inclined section, a right inclined section and a right horizontal section from left to right; the width of the left level section is at least 1 mm; the right end of the left horizontal section is connected with the left end of the left inclined plane section; the left inclined plane section inclines downwards from left to right, and after the inclined plane section inclines, the left end is 1mm lower than the left end; the horizontal distance from the right end of the left inclined plane section to the left edge of the punch is two fifths of the diameter of the punch; the right end of the left inclined plane section is connected with the left end of the right inclined plane section; the right end of the right inclined plane section is higher than the left end, and the right end of the right inclined plane section is connected with the left end of the right horizontal section; the width of the right level section is at least 1 mm; the horizontal distance from the left end of the right inclined plane section to the right edge of the punch is three fifths of the diameter of the punch; the left inclined plane section and the right inclined plane section are matched to form a pointed surface; the connecting line of the left end of the left inclined plane section and the right end of the right inclined plane section is consistent with the inclination of the punched inclined plane.