CN216679829U

CN216679829U - Three round pin axle class moulds

Info

Publication number: CN216679829U
Application number: CN202122833598.0U
Authority: CN
Inventors: 单勇; 束剑鹏; 蔡冰
Original assignee: Jiangsu Liken Technology Co ltd
Current assignee: Jiangsu Liken Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-06-07
Anticipated expiration: 2031-11-18

Abstract

The invention provides a three-pin-shaft type die which comprises an upper die, a lower die, an upper punch and a lower punch, wherein a die cavity is formed after the upper die and the lower die are assembled; an upper channel is arranged on the upper die and communicated with the die cavity, and a lower channel is arranged on the lower die and communicated with the die cavity; the upper punch extends into the die cavity through the upper channel, and the lower punch extends into the die cavity through the lower channel; the connecting part of the upper channel and the die cavity is an upper connecting part, the upper connecting part is in a conical shape, the connecting part of the lower channel and the die cavity is a lower connecting part, and the lower connecting part is in a conical shape. The invention has the advantages of simple structure, ingenious design, burr reduction, production efficiency improvement and the like.

Description

Three round pin axle class moulds

Technical Field

The invention relates to the field of dies, in particular to a three-pin-shaft die.

Background

The ball head three-pin is an important part in an automobile transmission system, and in the automatic production process, the production is not smooth due to the problem of the clearance between the punch and the female die: when the clearance between the punch and the female die is large, burrs are formed in the gap after extrusion, so that indentation can be formed on the surface of a workpiece, and the burrs can be clamped in the clearance between the female die and the punch after falling off, so that the problems of galling, clamping stagnation and the like of a die are caused; when the clearance between the punch and the female die is small, in the extrusion process, because the workpiece deforms and generates heat, the temperature of the die also can be increased and the size is increased, so that the clamping stagnation problem is caused, and the automation cannot be smoothly carried out.

Therefore, there is a need to provide a new solution.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention discloses a three-pin shaft type die, which comprises the following specific technical scheme:

the invention provides a three-pin shaft type die which comprises an upper die, a lower die, an upper punch and a lower punch,

a die cavity is formed after the upper die and the lower die are assembled;

an upper channel is arranged on the upper die and communicated with the die cavity, and a lower channel is arranged on the lower die and communicated with the die cavity;

the upper punch extends into the die cavity through the upper channel, and the lower punch extends into the die cavity through the lower channel;

the connecting part of the upper channel and the die cavity is an upper connecting part, the upper connecting part is in a conical shape, the connecting part of the lower channel and the die cavity is a lower connecting part, and the lower connecting part is in a conical shape.

Further, the upper connection part and the lower connection part have the same shape.

Further, the wide opening ends of the upper connecting part and the lower connecting part face the die cavity.

Further, the included angle between the upper punch and the upper connecting part is not more than 1 degree, and the included angle between the lower punch and the lower connecting part is not more than 1 degree.

The invention has the following beneficial effects:

1. the three-pin-shaft type die provided by the invention is simple in structure, ingenious in design and convenient to popularize and manufacture.

2. According to the three-pin-shaft die, the damage caused by the burrs is reduced by increasing the thickness of the burrs, and the problems of clamping stagnation, die galling failure and the like caused by indentation on the surface of a workpiece and falling of the burrs due to the burr problem are solved.

3. According to the three-pin-shaft die, the production efficiency is improved from 8 pieces/minute in manual production to 14 pieces/minute in automatic production, the production efficiency is greatly improved, and the production cost is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a three-pin-shaft type mold according to an embodiment of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Wherein, 1-upper die, 2-lower die, 3-upper punch, 4-lower punch, 5-die cavity, 6-upper connecting part and 7-lower connecting part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention discloses a three-pin shaft type die, which comprises an upper die 1, a lower die 2, an upper punch 3 and a lower punch 4 by referring to figures 1 and 2. A die cavity 5 is formed after the upper die 1 and the lower die 2 are matched; an upper channel is arranged on the upper die 1 and communicated with the die cavity 5, and a lower channel is arranged on the lower die 2 and communicated with the die cavity 5; the upper punch 3 extends through the upper passage into the die cavity 5 and the lower punch 4 extends through the lower passage into the die cavity 5. The connecting part of the upper channel and the die cavity 5 is an upper connecting part 6, the upper connecting part 6 is in a conical shape, the connecting part of the lower channel and the die cavity 5 is a lower connecting part 7, and the lower connecting part 7 is in a conical shape.

The upper connecting portion 6 and the lower connecting portion 7 have the same shape.

The wide opening ends of the upper connecting part 6 and the lower connecting part 7 face the die cavity 5.

The included angle between the upper punch 3 and the upper connecting part 6 is not more than 1 degree, and the included angle between the lower punch 4 and the lower connecting part 7 is not more than 1 degree.

The working principle of the invention is as follows: the upper connecting part and the lower connecting part are in a conical shape, the included angle between the upper punch and the lower punch and the upper connecting part and the included angle between the upper punch and the lower punch and the upper connecting part are not more than 1 degree, the clearance between the punches and the connecting parts is farther away from the clearance of the die cavity, and the thickness of generated burrs is larger.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A three-pin shaft type die is characterized by comprising an upper die, a lower die, an upper punch and a lower punch,

a die cavity is formed after the upper die and the lower die are assembled;

2. The three-pin shaft type mold according to claim 1, wherein the upper connecting portion and the lower connecting portion have the same shape.

3. The three-pin-shaft type mold according to claim 2, wherein wide-mouth ends of the upper connecting portion and the lower connecting portion face the mold cavity.

4. A die as claimed in claim 3, in which the angle between the upper punch and the upper connecting portion is no more than 1 ° and the angle between the lower punch and the lower connecting portion is no more than 1 °.