CN210966809U - Die set - Google Patents

Abstract

The utility model discloses a mould, include: a first die holder including a first mating end defining a first die cavity; the second die holder comprises a second attaching end, the second attaching end defines a second die cavity, and the second attaching end of the second die holder and the first attaching end of the first die holder are suitable for being attached to each other to form the die holder, so that the second die cavity and the first die cavity define a workpiece die cavity together; the die locking ring is configured to be sleeved along a first direction of the die holder so as to enable the first die holder and the second die holder to be attached and limited to each other; the workpiece die cavity is at least partially communicated with the outside in a second direction to form a die opening, and the first direction is perpendicular to the second direction. The mold can avoid the mold expansion phenomenon, is simple in structure, convenient to manufacture, greatly reduced in production cost and convenient to disassemble and assemble, and improves the production efficiency.

Description

Die set

Technical Field

The utility model relates to the field of mechanical equipment, especially, relate to a mould.

Background

The forging die is a processing tool which applies pressure to the metal blank by using a forging machine to enable the metal blank to generate plastic deformation so as to obtain a forging with certain mechanical property, certain shape and certain size; the die holder generally comprises two parts, a punch is arranged at the upper end of a die orifice formed by a forging die, and a forged workpiece can be formed by stamping a metal to be processed in a workpiece die cavity of the die through the punch; however, the die expansion phenomenon is easy to occur along with the punching of the punch, once the die expansion occurs, gaps are easy to occur at the joint parts of the die holder, and the workpiece to be formed flows into the gaps, so that the processing precision of the workpiece is influenced; in the prior art, in order to prevent the mold expansion, hydraulic cylinders are generally arranged on two sides of a mold base to lock the mold; however, the production cost is greatly increased, for example, as can be seen from a large amount of actual production, the stamping force of the punch is 1t, and then the hydraulic cylinders positioned on the two sides of the die holder need 2-2.5 t; obviously, the forging and pressing die in the prior art can greatly improve the production cost, and has a complex structure and inconvenient disassembly and assembly.

Disclosure of Invention

The utility model discloses aim at solving one of the problem that above-mentioned prior art exists, provide a mould, this mould can avoid taking place the mould phenomenon that rises, simple structure moreover, and it is convenient to make, greatly reduced manufacturing cost, easy dismounting improves production efficiency.

In order to achieve the above object, the present invention provides a mold, including: the die comprises a first die holder, a second die holder and a die locking ring.

A first die holder including a first mating end defining a first die cavity;

the second die holder comprises a second attaching end, the second attaching end defines a second die cavity, and the second attaching end of the second die holder and the first attaching end of the first die holder are suitable for being attached to each other to form the die holder, so that the second die cavity and the first die cavity define a workpiece die cavity together;

the die locking ring is configured to be sleeved along a first direction of the die holder so as to enable the first die holder and the second die holder to be attached and limited to each other;

the workpiece die cavity is at least partially communicated with the outside in a second direction to form a die opening, and the first direction is perpendicular to the second direction.

In the technical scheme, a first die and a second die are attached to each other, and a first attaching end of the first die holder and a second attaching end of the second die holder are suitable for being attached to each other to form the die holders, so that the first die cavity and the second die cavity jointly define a workpiece die cavity, and a die locking ring is sleeved along a first direction of the die holders; then, injecting a blank into the workpiece die cavity through the die opening, and then stamping the blank into the workpiece die cavity by using a punch so as to fill the whole workpiece die cavity with the blank to form a workpiece; and then the mold locking ring is withdrawn, and finally the mold base is opened to take out the workpiece. The mold can avoid the mold expansion phenomenon, is simple in structure, convenient to manufacture, greatly reduced in production cost and convenient to disassemble and assemble, and improves the production efficiency.

In addition, according to the utility model discloses a mould can also have following technical characterstic:

preferably, when the first die shoe and the second die shoe are brought into engagement with each other, the first cavity of the first die shoe or the second cavity on the second die shoe is at least partially in communication with the exterior to form a die opening.

Preferably, when the first and second die holders are brought into engagement with each other, the first die cavity is at least partially in communication with the exterior to form a first half-die, and the second die cavity is at least partially in communication with the exterior to form a second half-die, the first and second half-dies together defining a die.

Optionally, the first and second mold cavities are symmetrical to each other.

Preferably, the number of the die locking rings is two, and the die locking rings are respectively sleeved on two sides of the die holder in the first direction in the fitting state.

Preferably, a first half-protrusion is integrally formed on one side of the first die holder, a second half-protrusion is integrally formed on one side of the second die holder corresponding to the first die holder, when the first die holder and the second die holder are attached to each other, the first half-protrusion and the second half-protrusion jointly form a protrusion, and the protrusion is matched with the clamping ring.

Furthermore, the outer diameter of the protrusion is gradually reduced from the die holder to the direction departing from the die holder, and the inner diameter of the inner lock cavity of the die locking ring matched with the protrusion is gradually reduced from one side close to the die holder to one side far away from the die holder.

Preferably, the die holder is provided with a limiting end face, and the limiting end face is used for being matched with the die locking ring to limit the position of the die locking ring.

Preferably, a first limiting end face is formed at a joint of the first half-protrusion and the first die holder, a second limiting end face is formed at a joint of the second half-protrusion and the second die holder, and when the first die holder and the second die holder are attached to each other, the first limiting end face and the second limiting end face jointly form a limiting end face for limiting the die locking ring.

Preferably, a first contact surface formed by the first attaching end and a second contact surface formed by the second attaching end are both planes.

According to the utility model discloses a mold, its additional technical feature has following technological effect: the outer diameter of the bulge is gradually reduced from the die holder to the direction away from the die holder, so that the inner diameter of the inner lock cavity of the die locking ring matched with the bulge is gradually reduced from one side close to the die holder to one side far away from the die holder; the convex structure can facilitate the connection of the mold locking ring on one hand; on the other hand, the locking force of the mold locking ring to the mold base can be more stable and reliable.

Drawings

Fig. 1 is a schematic structural view of a locked state of a mold according to a first embodiment of the present invention;

fig. 2 is a schematic structural view showing a state where a locking ring of a mold according to a first embodiment of the present invention is retracted;

fig. 3 is a schematic structural view of a die holder open state of a die according to a first embodiment of the present invention;

fig. 4 is a structural schematic view of a locking state of a mold according to a second embodiment of the present invention;

fig. 5 is a schematic structural view showing a mode locking ring retreated state of the mold according to the second embodiment of the present invention;

fig. 6 is a schematic structural view showing a mold base open state of a mold according to a second embodiment of the present invention;

fig. 7 is a schematic structural view showing a locking state of a locking ring of a mold according to a third embodiment of the present invention;

fig. 8 is a schematic structural view showing a mode locking ring retreated state of the mold according to the third embodiment of the present invention;

fig. 9 is a schematic structural view of a mold base open state of a mold according to a third embodiment of the present invention.

In the figure, a mold 100; a die holder 10; a first die holder 101; a first attachment end 1011; a first mold cavity 10111; a first contact surface 10112; a second die holder 102; a second attachment end 1021; a second mold cavity 10211; second contact face 10212; a protrusion 10A; the first half protrusion 10a 1; the second half-protrusion 10a 2; a die opening 10B; a limiting end face 10C; a first limit end face 10C 1; a second limit end face 10C 2; a mold locking ring 20; a lock cavity 201; a workpiece 30.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the invention as defined by the claims. It includes various specific details to assist in this understanding, but these details should be construed as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that changes and modifications may be made to the various embodiments described herein without departing from the scope of the present invention, which is defined by the following claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular references include plural references unless there is a significant difference in context, scheme or the like between them.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present specification and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

According to the utility model discloses a forging and pressing mould 100, as shown in fig. 1-9, include: a first die holder 101, a second die holder 102 and a clamping ring 20.

A first die holder 101 comprising a first mating end 1011, the first mating end 1011 defining a first die cavity 10111;

a second die holder 102 comprising a second attaching end 1021, wherein the second attaching end 1021 defines a second die cavity 10211, and the second attaching end 1021 of the second die holder 102 and the first attaching end 1011 of the first die holder 101 are adapted to be attached to each other to form a die holder 10, so that the second die cavity 10211 and the first die cavity 10111 together define a workpiece die cavity;

a die locking ring 20 configured to be sleeved along a first direction of the die holder 10 to define a first die holder 101 and a second die holder 102 in a fitting manner;

wherein the workpiece die cavity is at least partially communicated with the outside in a second direction to form a die opening 10B, and the first direction and the second direction are perpendicular to each other.

Specifically, a punch is further provided at the upper end of the die opening 10B, and the punch is used for punching the blank located in the die so that the blank fills the entire workpiece die cavity to form the workpiece 30. The blank may be made of metal or nonmetal, and only the material that can satisfy the forging requirement may be used in the die 100 of the present invention for forging and forming.

It can be understood that fig. 1 to 3 are diagrams illustrating a working state of a mold according to an embodiment of the present invention; fig. 4 to 6 are diagrams illustrating the working state of the mold according to another embodiment of the present invention; fig. 7 to 9 are diagrams illustrating a working state of a mold according to still another embodiment of the present invention; attaching a first die and a second die to each other, wherein a first attaching end 1011 of the first die holder 101 and a second attaching end 1021 of the second die holder 102 are adapted to be attached to each other to form a die holder, so that the first die cavity 10111 and the second die cavity 10211 jointly define a workpiece die cavity, and a die locking ring 20 is sleeved along a first direction of the die holder 10; then, injecting a blank into the workpiece die cavity through the die orifice 10B, and then stamping the blank into the workpiece die cavity by using a punch so as to fill the whole workpiece die cavity with the blank to form a workpiece 30; the die locking ring 20 is then retracted, and finally the die holder 10 is opened to take out the workpiece 30. The die 100 can avoid the die expansion phenomenon, and is simple in structure, convenient to manufacture, capable of greatly reducing production cost, convenient to disassemble and assemble and capable of improving production efficiency.

In one embodiment of the present invention, as shown in fig. 1 to 3, when the first mold base 101 and the second mold base 102 are attached to each other, the first mold cavity 10111 of the first mold base 101 or the second mold cavity 10211 of the second mold base 102 is at least partially communicated with the outside to form a mold opening 10B; that is, the first cavity 10111 and the second cavity 10211 are asymmetric structures, and the die 10B is disposed on the first die holder 101 or the second die holder 102. It is noted that fig. 1 to 3 are a form of horizontal division.

In another embodiment of the present invention, as shown in fig. 4-9, when the first die holder 101 and the second die holder 102 are attached to each other, the first die cavity 10111 is at least partially communicated with the outside to form a first half-die, the second die cavity 10211 is at least partially communicated with the outside to form a second half-die, and the first half-die and the second half-die define a die opening 10B; that is, the first mold cavity 10111 and the second mold cavity 10211 together define a workpiece mold cavity, and the first half-mold and the second half-mold together define a mold cavity 10B, preferably, the first mold cavity 10111 and the second mold cavity 10211 are symmetrical to each other; it is further preferred that the first die holder 101 and the second die holder 102 are also symmetrical pieces, which is more convenient in the production and manufacture of the die holder 10. It should be noted that, in the present embodiment, the second direction is a direction perpendicular to the paper surface, and the die orifice 10B is arranged in this direction. It should be noted that fig. 4 to 6 are one of the vertical split mold forms, and fig. 7 to 9 are the other vertical split mold form, and the opening directions of the two molds 100 are different.

Preferably, as shown in fig. 1 to 9, two mold locking rings 20 are provided, and are respectively sleeved on two sides of the mold base 10 in the first direction in the fitting state; specifically, the die locking rings 20 are respectively sleeved at two ends of the die holder 10, so that when the die holder 10 is pressed by a punch, the blank is stressed more uniformly, and the forming precision of the workpiece 30 is higher; it should be noted that the locking ring 20 mainly functions to lock the die holder 10 to prevent the blank from flowing out from the first and second attaching ends 1011 and 1021 when the first and second die holders 101 and 102 are attached to each other, which affects the processing accuracy of the die 100.

Preferably, as shown in fig. 3, 6 and 9, a first half-protrusion 10A1 is integrally formed on one side of the first die holder 101, a second half-protrusion 10A2 is integrally formed on the side of the second die holder 102 corresponding to the first die holder 101, the first half-protrusion 10A1 and the second half-protrusion 10A2 together form a protrusion 10A when the first die holder 101 and the second die holder 102 are fitted to each other, and the protrusion 10A is fitted to the die locking ring 20; for example, in the present invention, the first half protrusion 10A1 and the second half protrusion 10A2 are both semi-cylindrical structures, the first half protrusion 10A1 and the second half protrusion 10A2 are combined to form the protrusion 10A of a cylindrical structure, and the mold locking ring 20 is a circular arc cavity lock cavity 201 matched with the cylinder, that is, of course, the protrusion 10A may also be a triangular or polygonal cylindrical structure, which is not limited herein; the connection of the mold locking ring 20 can be facilitated by the first half protrusion 10A1 and the second half protrusion 10A 2.

Further, as shown in fig. 1 to 9, the outer diameter of the protrusion 10A gradually decreases from the die holder 10 to the direction away from the die holder 10, and the inner diameter of the locking cavity 201 inside the die locking ring 20, which is engaged with the protrusion 10A, gradually decreases from the side close to the die holder 10 to the side away from the die holder 10; the structure of the projection 10A is designed to facilitate the connection of the mold locking ring 20; on the other hand, the locking force of the mold locking ring 20 to the mold base 10 can be more stable and reliable.

Preferably, as shown in fig. 3, 6 and 9, the die holder 10 has a limiting end surface 10C thereon, and the limiting end surface 10C is used for cooperating with the die locking ring 20 to realize the position limitation of the die locking ring 20; specifically, the junction of the first half-protrusion 10a1 and the first die holder 101 forms a first limit end surface 10C1, the junction of the second half-protrusion 10a2 and the second die holder 102 forms a second limit end surface 10C2, and when the first die holder 101 and the second die holder 102 are attached to each other, the first limit end surface 10C1 and the second limit end surface 10C2 together form a limit end surface 10C for limiting the die locking ring 20; the limiting end face 10C is arranged to limit the mold locking ring 20, and the connection reliability of the mold locking ring 20 is improved.

Preferably, as shown in fig. 3, 6 and 9, the first contact surface 10112 formed by the first attaching end 1011 and the second contact surface 10212 formed by the second attaching end 1021 are both flat surfaces; the first attaching end 1011 and the second attaching end 1021 are planar structures, which is helpful for the connection between the first mold base 101 and the second mold base 102, and the first contact surface 10112 and the second contact surface 10212 are perpendicular to the mold locking ring 20, so that the locking effect of the mold locking ring 20 can be improved.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Those skilled in the art will appreciate that various features of the various embodiments of the invention described hereinabove may be omitted, added to, or combined in any manner accordingly. Moreover, the simple transformation and the solution of adapting and functional structure transformation to the prior art, which can be thought of by those skilled in the art, all belong to the protection scope of the present invention.

While the invention has been shown and described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (10)

1. A mold, comprising:

a first die holder (101) comprising a first abutting end (1011), the first abutting end (1011) defining a first die cavity (10111);

a second die holder (102) comprising a second abutting end (1021), the second abutting end (1021) defining a second die cavity (10211), and the second abutting end (1021) of the second die holder (102) and the first abutting end (1011) of the first die holder (101) being adapted to abut against each other to form a die holder (10), such that the second die cavity (10211) and the first die cavity (10111) together define a workpiece die cavity;

a die locking ring (20) configured to be sleeved along a first direction of the die holder (10) to fit the first die holder (101) and the second die holder (102) to define;

wherein the workpiece die cavity is at least partially in communication with the outside in a second direction to form a die orifice (10B), and the first direction and the second direction are perpendicular to each other.

2. Mould according to claim 1, characterized in that, when the first and second mold shoe (101, 102) are mutually engaged, the first cavity (10111) of the first mold shoe (101) or the second cavity (10211) of the second mold shoe (102) are at least partially in communication with the outside to form a die opening (10B).

3. Mould according to claim 1, characterized in that when said first mold shoe (101) and said second mold shoe (102) are mutually coupled, said first mold cavity (10111) communicates at least partially with the outside to form a first half-mouth, and said second mold cavity (10211) communicates at least partially with the outside to form a second half-mouth, said first half-mouth and said second half-mouth defining together a mouth (10B).

4. The mold according to claim 3, characterized in that the first cavity (10111) and the second cavity (10211) are symmetrical to each other.

5. The mold according to claim 1, wherein the mold locking rings (20) are two and respectively fit on two sides of the mold base (10) in the first direction in the fitting state.

6. Mould as in claim 1, characterized in that a first half-relief (10A1) is integrally formed on one side of said first shoe (101), a second half-relief (10A2) is integrally formed on a side of said second shoe (102) corresponding to said first shoe (101), said first half-relief (10A1) and said second half-relief (10A2) jointly forming a relief (10A) when said first shoe (101) and said second shoe (102) are in engagement with each other, and said relief (10A) cooperating with said ring (20).

7. The mold according to claim 6, characterized in that the external diameter of said protrusion (10A) is gradually reduced from said mold base (10) to the direction away from said mold base (10), and the internal diameter of the internal lock cavity (201) of said mold locking ring (20) engaged with said protrusion (10A) is gradually reduced from the side close to said mold base (10) to the side away from said mold base (10).

8. Mould according to claim 6, characterized in that the die holder (10) has a limit end face (10C) thereon, the limit end face (10C) being adapted to cooperate with the die ring (20) to achieve a position definition of the die ring (20).

9. Mould as in claim 8, characterized in that the junction of said first half-relief (10a1) with said first shoe (101) forms a first limit face (10C1) and the junction of said second half-relief (10a2) with said second shoe (102) forms a second limit face (10C2), said first limit face (10C1) and said second limit face (10C2) jointly forming a limit face (10C) for defining said ring (20) when said first shoe (101) and said second shoe (102) are in engagement with each other.

10. The mold according to claim 1, characterized in that the first contact surface (10112) formed by the first abutting end (1011) and the second contact surface (10212) formed by the second abutting end (1021) are both plane surfaces.

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