CN219336229U

CN219336229U - Triangular knife for cutting shoulder of forging piece

Info

Publication number: CN219336229U
Application number: CN202320259432.9U
Authority: CN
Inventors: 肖广帅; 李威; 张帅; 王玉杰; 沈玉婷; 白云欣; 杨后雷
Original assignee: Tongyu Heavy Industry Co Ltd
Current assignee: Tongyu Heavy Industry Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-07-14
Anticipated expiration: 2033-02-20

Abstract

The utility model provides a triangular knife for cutting a shoulder of a forging, and mainly relates to the field of forging processing tools of forgings. The forging cuts shoulder and uses triangle sword, including arc triangle cutter body, inclined key, blade holder, its characterized in that: the section of the main body of the arc triangular cutter body is triangular, the front part of the arc triangular cutter body is provided with a front curved surface, the rear part of the arc triangular cutter body is provided with a rear curved surface, the front curved surface and the back curved surface are intersected to form an arc-shaped cutting edge, a key hole is formed in the arc-shaped triangular cutter body, an inclined key is arranged in the key hole, and the arc-shaped triangular cutter body is arranged on the cutter holder through the inclined key. The utility model has the beneficial effects that: compared with the traditional triangular knife, the arc-shaped triangular knife has longer blade length, large contact length during shoulder cutting and high shoulder cutting efficiency; meanwhile, the device has the advantages of simple structure, easily available materials, easy production and manufacture, convenient operation and the like.

Description

Triangular knife for cutting shoulder of forging piece

Technical Field

The utility model mainly relates to the field of forging processing tools of forgings, in particular to a triangular knife for cutting shoulders of forgings.

Background

In the forging process of large step shaft or barrel forgings, in order to forge steps or concave baffles of the forgings, local drawing deformation is needed on blanks, and the operation steps are that firstly, a triangular knife is used for cutting shoulders and distributing materials, and then, the needed drawing part is drawn by a stock, so that the transition part is straight and tidy. Because the blank is a round blank before cutting the shoulder and separating materials, the traditional triangular knife is a linear triangular knife, the contact line between the blank and the cutting edge is shorter when the shoulder is cut, repeated rotary embossing is needed, and the working efficiency of cutting the shoulder is lower.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the triangular knife for cutting the shoulder of the forging piece, which has the advantages of simple structure, easily obtained materials, easy production and manufacture and convenient operation.

The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a cam sword for shoulder is cut to forging, includes arc cam cutter body, inclined key, blade holder, its characterized in that: the section of the main body of the arc triangular cutter body is triangular, the front part of the arc triangular cutter body is provided with a front curved surface, the rear part of the arc triangular cutter body is provided with a rear curved surface, the front curved surface and the back curved surface are intersected to form an arc-shaped cutting edge, a key hole is formed in the arc-shaped triangular cutter body, an inclined key is arranged in the key hole, and the arc-shaped triangular cutter body is arranged on the cutter holder through the inclined key.

The included angle theta between the back curved surface of the arc-shaped triangular cutter body and the root plane of the arc-shaped triangular cutter body is 94-98 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

compared with the traditional triangular knife, the arc-shaped triangular knife has longer blade length, large contact length during shoulder cutting and high shoulder cutting efficiency; meanwhile, the device has the advantages of simple structure, easily available materials, easy production and manufacture, convenient operation and the like.

Drawings

FIG. 1 is a schematic view of a cutter body structure of the present utility model;

FIG. 2 is a schematic diagram of the front view of the triangular knife according to the present utility model;

FIG. 3 is a schematic side view of the triangular knife of the present utility model;

FIG. 4 is a schematic cross-sectional view of the cutter body A-A according to the present utility model;

FIG. 5 is a schematic view of a cut shoulder construction of the present utility model;

fig. 6 is a schematic view of a conventional common cam cutter cutting shoulder.

The reference numbers shown in the drawings: 1. arc triangular cutter body; 2. a diagonal key; 3. a tool apron; 10. an arc-shaped blade; 11. a front curved surface; 12. a back curve.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the utility model, and such equivalents are intended to fall within the scope of the utility model as defined herein.

1-6, a forging cuts shoulder and uses triangle sword, including arc triangle cutter body 1, inclined key 2, blade holder 3, its characterized in that: the novel cutter comprises an arc triangular cutter body 1, wherein the main body section of the arc triangular cutter body 1 is triangular, a front curved surface 11 is arranged at the front part of the arc triangular cutter body 1, a rear curved surface 12 is arranged at the rear part of the arc triangular cutter body 1, an arc cutting edge 10 is formed at the junction of the front curved surface 11 and the rear curved surface 12, a key hole is formed in the arc triangular cutter body 1, a bevel key 2 is arranged in the key hole, and the arc triangular cutter body 1 is arranged on a cutter holder 3 through the bevel key 2.

The included angle theta between the back curved surface 12 of the arc triangular cutter body 1 and the root plane of the arc triangular cutter body 1 is 94-98 degrees.

Fig. 6 shows a schematic diagram of a conventional common triangular cutter cutting shoulder, which generally comprises a base and a triangular cutter body, wherein the triangular cutter body is generally in a right-angle triangular shape, when the triangular cutter cuts the shoulder, the contact line between a blank and a cutting edge is shorter, repeated rotation and embossing are needed, and the shoulder cutting efficiency is lower.

As shown in fig. 5, in the utility model, the triangular cutter body is assembled with the cutter holder through the inclined key, the blank is placed on the arc-shaped cutter edge of the triangular cutter when the shoulder is cut, and the blank is moved downwards under the action of the upper anvil pressure, so that the arc-shaped cutter mark is pressed on the blank, the blank is lifted after one cutter is pressed, the other cutter is pressed after the blank is rotated, until one complete circle is pressed, and the shoulder cutting efficiency can be obviously improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a cam sword for shoulder is cut to forging, includes arc triangle cutter body (1), inclined key (2), blade holder (3), its characterized in that: the novel cutter comprises an arc triangular cutter body (1), wherein the cross section of the main body of the arc triangular cutter body (1) is triangular, a front curved surface (11) is arranged at the front part of the arc triangular cutter body (1), a rear curved surface (12) is arranged at the rear part of the arc triangular cutter body (1), an arc cutting edge (10) is formed at the junction of the front curved surface (11) and the rear curved surface (12), a key hole is formed in the arc triangular cutter body (1), an inclined key (2) is arranged in the key hole, and the arc triangular cutter body (1) is arranged on a cutter holder (3) through the inclined key (2).

2. The cam blade for shoulder cutting of forgings according to claim 1, wherein: the included angle theta between the back curved surface (12) of the arc triangular cutter body (1) and the root plane of the arc triangular cutter body (1) is 94-98 degrees.