CN221537987U - A forging ejection die structure - Google Patents

Abstract

The utility model discloses a forge piece ejection die structure, and relates to the technical field of forming forging dies; the forging is positioned in the cavity between the upper module and the lower module; the upper module is provided with a plurality of demoulding assemblies; the demolding assembly comprises a positioning piece, a guiding piece and a disc spring; the guide piece is connected with the positioning piece through the disc spring; when the upper module is connected with the lower module, the disc spring is in a compressed state; when the upper module is separated from the lower module, the disc spring is in an extension state so as to push the guide piece to eject the forging piece, so that the forging piece is left in the lower module; after the forging is finished, the forging pushes the guide piece to move towards the positioning piece, at the moment, the disc spring is in a compressed state, the upper module and the lower module are separated when the disc spring moves upwards, the guide piece can rapidly move downwards to eject the forging to be positioned in the lower module under the action of the elastic force of the disc spring, so that the instant demoulding of the forging is realized, the forging does not need to be separated from an original cavity, and the accurate positioning of the forging is realized.

Description

Forging ejection die structure

Technical Field

The utility model belongs to the technical field of forming forging dies, and particularly relates to a forging ejection die structure.

Background

The connecting rod is one of important parts of the engine, and has the function of converting the reciprocating motion of the piston into the rotary motion of the crankshaft, and the connecting rod bears the explosive force, the compression force and the inertia force and the tensile force of the reciprocating motion of the connecting rod of the internal combustion engine, so that the connecting rod has higher requirements on strength and rigidity. In order to meet the requirements of higher strength and rigidity of the connecting rod, the connecting rod is usually manufactured by adopting a forging processing method, the existing forging production equipment mainly adopts a hot die forging press, and the forged forging is ejected out of the die cavity in a mechanical ejection mode.

The hot film forging press is provided with a clamp holder, the clamp holder comprises an upper clamp holder and a lower clamp holder which are oppositely arranged, and a die containing a forging die is arranged between the upper clamp holder and the lower clamp holder. The upper side and the lower side of the die are symmetrically provided with forging die ejection mechanisms, downward acting force is applied to the forging die ejection mechanisms downwards through the upper clamp holder, and the forging die ejection mechanisms push down the forging die in the die. Specifically, as shown in fig. 1, an upper ejector block, an upper ejector plate, an upper ejector rod and an upper movable top plate are sequentially arranged in the upper clamp holder from top to bottom; and a forging die ejection mechanism is arranged below the upper movable top plate. When the forging piece is required to be demolded, the upper clamp holder is firstly required to be lifted by 300mm to separate the upper clamp holder from the lower clamp holder, then an ejection piece in hot die forging press equipment is downwards extruded to an upper ejection block, the upper ejection block is downwards moved to sequentially extrude an upper ejection plate, an upper ejection rod and an upper movable top plate, finally the upper ejection rod in a forging die ejection mechanism is pushed to downwards move to eject the forging piece positioned in the die cavity, and the forging piece falls into the lower clamp holder from the die cavity.

Therefore, in the process of taking the forging out of the die cavity by the hot die forging press, the upper clamp holder and the lower clamp holder are separated by a certain distance, and then the forging die ejection mechanism starts to work, so that the forging can fall into the lower clamp holder after the distance. In the falling distance, the forging piece can deviate in the falling process due to air resistance; moreover, the forging is the connecting rod so the forging is comparatively narrow and long, and forging die ejection mechanism carries out ejecting in-process to the different positions of forging for the atress of every stress point of forging is different, and the forging produces the slope at whereabouts in-process easily, leads to the fact the forging blanking to be improper easily, can not accurately fall into the preset position of lower holder, and then influences follow-up robot and snatchs the forging accurately, causes next step to receive the influence and can't go on smoothly.

Disclosure of utility model

The utility model provides a forge piece ejection die structure, which aims to solve the problems that the existing ejection mechanism shifts the falling position in the forge piece demoulding process and can not accurately blank.

The technical scheme adopted by the utility model is as follows:

A forging ejection die structure is provided, wherein a forging is positioned in a cavity between an upper module and a lower module; the upper module is provided with a plurality of demoulding assemblies; the demolding assembly comprises a positioning piece, a guiding piece and a disc spring; the guide piece is connected with the positioning piece through the disc spring;

When the upper module is connected with the lower module, the disc spring is in a compressed state; when the upper module is separated from the lower module, the disc spring is in an extension state so as to push the guide piece to eject the forging piece, so that the forging piece is left in the lower module.

The mobile terminal of the utility model also has the following additional technical characteristics:

The positioning piece is provided with a fixed end face and a connecting end face which are oppositely arranged; the fixed end face is fixed through a clamp holder; the connecting end face is provided with a positioning block protruding towards the guide piece, and the guide piece is provided with a positioning groove facing the connecting end face; the positioning block is embedded into the positioning groove, and the disc spring is connected between the positioning block and the positioning groove.

A step surface is arranged in the positioning groove; the disc spring is sleeved on the positioning block, one end of the disc spring is connected with the connecting end face, and the other end of the disc spring is connected with the step face.

The disc spring is arranged in the positioning groove along the circumferential direction of the outer side of the positioning block, one end of the disc spring is connected with the connecting end face, and the other end of the disc spring is connected with the bottom wall of the positioning groove.

And a gap is reserved between one end of the guide piece, which faces the positioning piece, and the positioning piece, so that a moving space is reserved between the guide piece and the positioning piece.

The guide piece comprises a first ejection rod and a second ejection rod which are connected, the first ejection rod is connected with the positioning piece through the disc spring, and the second ejection rod ejects the forge piece under the pushing action of the first ejection rod.

The lower module is provided with positioning assemblies respectively corresponding to the demolding assemblies; the positioning assembly comprises a first positioning piece and a second positioning piece; one end of the first positioning piece is fixed through a clamp holder, and the other end of the first positioning piece is connected with the second positioning piece; the forging piece is abutted between the second locating piece and the second ejection rod.

A first mounting cavity for accommodating the demolding assembly is formed in the upper module; a second mounting cavity for accommodating the positioning component is arranged in the lower die; the first installation cavity and the second installation cavity are respectively communicated with the cavity.

The first mounting cavity comprises a first demolding cavity and a second demolding cavity which are communicated, and the second demolding cavity is communicated with the cavity; the first demolding cavity is internally provided with the positioning piece and the first ejection rod, the second demolding cavity is internally provided with the second ejection rod, and the second ejection rod part extends into the first demolding cavity.

The width of the second ejector rod in the first demolding cavity is larger than the opening of the second demolding cavity, so that the second ejector rod is prevented from being separated from the second demolding cavity.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. A forging ejection die structure is provided, wherein a forging is positioned in a cavity between an upper module and a lower module; the upper module is provided with a plurality of demoulding assemblies; the demolding assembly comprises a positioning piece, a guiding piece and a disc spring; the guide piece is connected with the positioning piece through the disc spring; by arranging the disc spring between the positioning piece and the guide piece, the disc spring has larger elasticity, so that the instant elasticity can be released, and the guide piece can rapidly eject the forging piece below the guide piece under the elastic acting force of the disc spring, so that the forging piece is separated from the guide piece;

When the upper module is connected with the lower module, the disc spring is in a compressed state; when the upper module is separated from the lower module, the disc spring is in an extension state to push the guide piece to eject the forging piece so that the forging piece is reserved in the cavity of the lower module and is completely separated from the cavity of the upper module.

Therefore, in the application, by means of the upward extrusion force of the forging and pressing part on the guide part, once the guide part is separated from the forging, the forging is ejected out of the guide part under the reaction force of the guide part, the forging is originally positioned in the cavity between the upper module and the lower module, and the forging is kept in the cavity of the lower module due to the fact that the forging is pushed by the guide part to be separated from the guide part, namely, the forging does not need to fall freely, and is not separated from the original cavity, the forging can be kept in the cavity of the lower module and separated from the cavity of the upper module, so that the forging cannot deviate, the accurate positioning of the forging is realized, and the robot can accurately grasp the forging kept in the cavity of the lower module, so that the grasping precision and the working efficiency are improved.

2. As a preferred embodiment of the present utility model, the positioning member has a fixed end face and a connecting end face which are disposed opposite to each other; the fixed end face is fixed through a clamp holder; the connecting end face is provided with a positioning block protruding towards the guide piece, and the guide piece is provided with a positioning groove facing the connecting end face; the positioning block is embedded into the positioning groove, and the disc spring is connected between the positioning block and the positioning groove. Through the structure setting of positioning groove and locating piece for the guide reciprocates along positioning groove, and positioning groove forms a guide way that can realize the guide and removes, can guarantee not taking place the skew in the removal of guide, can realize the connection stability between guide and the locating piece again.

3. As a preferred embodiment of the present utility model, a step surface is disposed in the positioning groove; the disc spring is sleeved on the positioning block, one end of the disc spring is connected with the connecting end face, and the other end of the disc spring is connected with the step face. The step surface is favorable for fixing the disc spring, the connection distance between the guide piece and the positioning piece can be shortened through the step surface, and the connection stability between the guide piece and the positioning piece is guaranteed.

4. As a preferred embodiment of the present utility model, the disc spring is disposed in the positioning groove along the outer circumferential direction of the positioning block, one end of the disc spring is connected to the connection end surface, and the other end of the disc spring is connected to the bottom wall of the positioning groove. The disc spring can guarantee to have higher elastic acting force between the guide piece and the locating piece along the outer circumferential surface of the locating piece for a circle, can guarantee in the moment that the upper module is separated from the lower module, the guide piece can be rapidly pushed to the forging piece by stronger elastic acting force, can be separated from the guide piece in the moment, can not adhere with the guide piece, can be kept in the cavity, is located in the cavity of the lower module, and achieves accurate location of the forging piece.

5. As a preferred embodiment of the present utility model, a gap is left between an end of the guide member facing the positioning member and the positioning member, so that a moving space is provided between the guide member and the positioning member. Only enough moving space is reserved, enough moving distance between the guide piece and the positioning piece can be ensured, so that the guide piece is prevented from being limited by the positioning piece when moving relative to the positioning piece, and the situation that the guide piece cannot move upwards to apply acting force to the forging piece is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a partial schematic diagram of a prior art hot die forging press holder;

FIG. 2 is a schematic structural view of a forging ejection die structure according to an embodiment of the present utility model;

Fig. 3 is a schematic structural view of a stripper assembly of a forging ejection die structure according to an embodiment of the present utility model.

An upper module and a lower module;

3 demoulding components, 31 positioning pieces, 311 fixing end faces, 312 connecting end faces, 32 guiding pieces, 321 first ejection rods, 322 second ejection rods and 33 disc springs;

a flat plate 4, a positioning block 5, a positioning groove 6 and a connecting shaft 7;

8 positioning components, 81 first positioning pieces and 82 second positioning pieces;

9 first mounting cavity, 91 first demolding cavity, 92 second demolding cavity;

10 a second installation cavity, a 101 first positioning cavity and a 102 second positioning cavity;

The mold comprises a cavity 11, an upper clamp holder 12, a lower clamp holder 13, an upper ejector block 14, an upper ejector plate 15, an upper ejector rod 16 and a movable top plate 17.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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.

In the prior art, as shown in fig. 1, the clamper includes an upper clamper 12 and a lower clamper 13; the upper clamp 12 comprises an upper jacking block 14, an upper jacking plate 15, an upper jacking rod 16 and an upper movable top plate 17 which are sequentially arranged from top to bottom; the forging die ejection mechanism is respectively connected between the upper clamp holder 12 and the lower clamp holder 13, a forging is arranged in a die cavity in the forging die ejection mechanism, when the forging is required to be demolded, the upper clamp holder 12 is firstly required to be lifted by 300mm to separate the upper clamp holder 12 from the lower clamp holder 13, then an ejection piece in hot die forging press equipment is downwards extruded to an upper ejection block 14, the upper ejection block 14 is downwards moved to sequentially extrude an upper ejection plate 15, an upper ejection rod 16 and an upper movable top plate 17, finally an ejector rod in the forging die ejection mechanism is pushed to downwards move to eject the forging in the die cavity, and the forging falls into the lower clamp holder 13 from the die cavity. However, this way of ejecting the forging die easily causes the forging to deviate from the original predetermined position in the falling process, resulting in the forging shifting from the original positioning position, because the upper clamp holder 12 and the lower clamp holder 13 are separated by a distance, the forging is subjected to air resistance in the falling distance, the ejection mechanism applies downward ejection force to different positions of the forging, and the stress of each position is different, so that the forging is subjected to different pushing forces in the falling process, and the forging is inclined, resulting in the shifting. Therefore, the application designs a forging ejection die structure, which can realize the process that the forging does not fall freely, and the forging can be separated from the upper module 1 in the original die cavity 11 for forging, so that the forging is completely left in the die cavity 11 of the lower die, the positioning accuracy of the forging is improved, the robot is ensured to accurately grasp the forging, and the next procedure is carried out.

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

The utility model relates to a technical scheme adopted by the utility model, which comprises the following steps:

in the forging ejection die structure, as shown in fig. 2, a die cavity 11 is formed between an upper module 1 and a lower module 2; the upper module 1 has a plurality of stripper assemblies 3; the demoulding assembly 3 comprises a positioning piece 31, a guiding piece 32 and a disc spring 33; the guide piece 32 is connected with the positioning piece 31 through the disc spring 33;

When the upper module 1 is connected with the lower module 2, the disc spring 33 is in a compressed state; when the upper module 1 is separated from the lower module 2, the disc spring 33 is in an extended state to push the guide member 32 to eject the forging so that the forging remains in the lower module 2.

The upper module 1 and the lower module 2 are symmetrically provided with cavities, the upper module 1 and the lower module 2 are correspondingly communicated with each other to form a cavity 11 for forging and pressing the forging, one half of the forging is positioned in the cavity 11 of the upper module 1, and the other half of the forging is positioned in the cavity 11 of the lower module 2. After forging and pressing are finished, acting force is applied to the forging downwards through the guide piece 32 of the upper module 1, so that the forging is separated from the guide piece 32 of the upper module 1, adhesion is not generated any more, the forging is completely separated from the cavity 11 of the upper module 1 and reserved in the cavity 11 of the lower module 2, and therefore the forging is prevented from being separated from the original position and is prevented from shifting. The forging piece which is originally positioned in the cavity 11 is kept in the cavity 11 of the lower module 2, does not leave the cavity 11 of the lower module 2, and is completely separated from the cavity 11 of the upper module 1 under the action of the guide piece 32, so that the forging piece is positioned in an accurate position, and accurate positioning of the forging piece is ensured.

In the application process, the upper module 1 and the lower module 2 are butted, the upper module 1 is usually positioned above the lower module 2, injection molding is carried out in a cavity 11 between the upper module 1 and the lower module 2, a forging fills a space of the cavity 11, after forging and pressing are carried out in the cavity 11, the forging can generate upward pushing force on a guide piece 32 positioned in the upper module 1, and due to the fact that a disc spring 33 is connected between the guide piece 32 and the guide piece 31, the guide piece 32 is extruded towards the guide piece 31 under the elastic acting force of the disc spring 33, so that the disc spring 33 is subjected to compression deformation, and due to the fact that the guide piece 31 is positioned below the upper clamp 12, the lower clamp 13 is connected with the guide piece 31, an upper flat plate 4 is arranged below the lower clamp 13, two through holes are formed in the upper flat plate 4, the guide piece 31 can be clamped in the through holes and is fixedly connected with the lower clamp 13, so that the lower clamp 13 can play a fixed role in fixing the guide piece 31, the guide piece 32 can keep static, and play a downward pushing force role in supporting the guide piece 32, so that the guide piece 32 can tightly jack the forging; when the forging is completed and the forging needs to be taken out, the upper module 1 or the lower module 2 is separated.

In the present embodiment, the upper module 1 is moved upward together with the upper clamper 12 to be away from the lower module 2. When the upper module 1 is upwards far away from the lower module 2, the positioning piece 31 moves upwards, the positioning piece 31 is connected with the guiding piece 32, the guiding piece 32 moves upwards, the guiding piece 32 is originally connected with the forging piece in an abutting mode, at the moment, the guiding piece 32 is in a separated state with the forging piece, the forging piece is instantaneously ejected out of the guiding piece 32 under the elastic force of the disc spring 33, the forging piece is subjected to downward acting force of the guiding piece 32 to be completely separated from the guiding piece 32, the forging piece cannot move upwards along with the guiding piece 32 in the cavity 11, and the forging piece and the guiding piece 32 do not generate any adhesion, so that the forging piece continues to remain in the cavity 11 of the lower module 2.

According to the application, the forging does not realize the free falling process, and the forging can be separated from the upper module 1 in the original forging cavity 11, so that the forging is completely left in the lower die cavity 11, free falling movement and any deviation can not occur, and the accurate positioning of the forging is improved.

The connection surface between the positioning member 31 and the guide member 32 may be a plane or a special structure, and the structure of the positioning member 31 and the guide member 32 may be any of the following embodiments without being limited to the present embodiment:

As a preferred embodiment, the positioning member 31 has a fixing end face 311 and a connecting end face 312 which are disposed opposite to each other; the fixed end face 311 is fixed by a clamp; the connecting end surface 312 is provided with a positioning block 5 protruding towards the guide piece 32, and the guide piece 32 is provided with a positioning groove 6 facing the connecting end surface 312; the positioning block 5 is embedded into the positioning groove 6, and the disc spring 33 is connected between the positioning block 5 and the positioning groove 6.

The fixing end face 311 is provided with a connecting shaft 7, the connecting shaft 7 and the fixing end face 311 are fixedly connected to form an integrated structure, and the connecting shaft 7 is used for being installed in a through hole of the flat plate 4 of the upper clamp 12 in a penetrating mode, so that the fixing end face 311 and the upper clamp 12 are fixedly connected. When the upper clamp 12 and the lower clamp 13 are butted to forge the forging, the fixing end face 311 of the positioning piece 31 is fixedly connected with the clamp 12, so that the positioning piece 31 is kept fixed, the positioning effect of the positioning piece 31 on the guide piece 32 is ensured, and the guide piece 32 is extruded towards the forging under the action of the disc spring 33.

The positioning block 5 provided on the connection end surface 312 may have various shapes, and the positioning block 5 is provided in a cylindrical structure in the present embodiment, and the specific shape is not limited to the present embodiment.

The positioning groove 6 is matched with the positioning block 5, the guide piece 32 can move up and down along the inner part of the positioning groove 6, and a guide channel of the guide piece 32 is formed in the inner part of the positioning groove 6. Through setting up positioning groove 6, can guarantee that guide 32 is in the internal removal of positioning groove 6 for guide 32 can not take place the skew, can also guarantee the connection stability between guide 32 and the setting element 31, because disc spring 33 connects between locating piece 5 and positioning groove 6, can shorten the connection distance between locating piece 5 and guide 32, thereby guarantees the joint strength between guide 32 and locating piece 5.

Various embodiments are possible for the arrangement of the disc spring 33, and the arrangement of the disc spring 33 may be any of the following embodiments without being limited to the specific limitation of the present embodiment:

As a preferable example of the present embodiment, the positioning groove 6 is provided with a step surface therein; the disc spring 33 is sleeved on the positioning block 5, one end of the disc spring 33 is connected with the connecting end face 312, and the other end of the disc spring 33 is connected with the step face.

As shown in fig. 2, the step surface is located at one end of the positioning groove 6 facing the positioning piece 31, the size of the step surface can be set according to the size of the disc springs 33, in this embodiment, one disc spring 33 is adopted, during operation, the disc springs 33 are first sleeved on the outer side of the positioning piece 5, one end of the disc springs 33 along the axis is abutted to the connecting end surface 312 of the positioning piece 31 with the positioning piece 5, and the other end of the disc springs 33 along the axis is abutted to the step surface.

It is noted that a gap is left between the end of the guide member 32 facing the positioning member 31 and the positioning member 31, so that a moving space is provided between the guide member 32 and the positioning member 31. When the disc spring 33 is connected between the step surface and the connecting end surface 312, a proper gap is left between the connecting end surface 312 of the positioning block 5 and the end surface of the guide member 32, so as to ensure that the guide member 32 can move relative to the positioning block 5. When the forging is forged, the guide piece 32 moves upwards to squeeze the disc spring 33 under the action of the forging, and the gap is arranged to ensure that the guide piece 32 can move upwards relative to the positioning piece 31. If there is no gap between the guide 32 and the positioning member 31, the guide 32 cannot move upward.

As another preferable example of the present embodiment, the disc spring 33 is disposed in the positioning groove 6 along the outer circumferential direction of the positioning block 5, one end of the disc spring 33 is connected to the connection end surface 312, and the other end of the disc spring 33 is connected to the bottom wall of the positioning groove 6.

In this embodiment, the number of disc springs 33 is plural, the plurality of disc springs 33 may be uniformly distributed along the outer circumferential direction of the positioning block 5, one end of the disc spring 33 along the axis is fixedly connected with the bottom wall of the positioning groove 6, and the other end of the disc spring 33 along the axis is fixedly connected with the connecting end face 312 of the positioning member 31. The purpose of setting up a plurality of disc springs 33 is to increase the elastic force to disc spring 33 to guide 32, can guarantee that guide 32 has the elasticity of instantaneous high strength under the elastic action of disc spring 33, and when last module 1 and lower module 2 separate, guide 32 takes place to break away from with the forging in the twinkling of an eye under the elastic action of disc spring 33 for the forging is static in the die cavity 11 of lower module 2, guarantees the accurate location of forging.

As another embodiment, the connection surface between the positioning member 31 and the guide member 32 may be provided as a flat surface, and the two flat surfaces may be connected by the disc spring 33.

The structure of the guide 32 is not limited to this embodiment, and the guide 32 may be any of the following embodiments:

As one preferred embodiment, the guide member 32 includes a first ejector rod 321 and a second ejector rod 322 which are connected, and the first ejector rod 321 and the second ejector rod 322 are connected in contact with each other; the first ejector rod 321 is connected with the positioning piece 31 through the disc spring 33, and the second ejector rod 322 ejects the forging piece under the pushing action of the first ejector rod 321.

In operation, when the upper module 1 is separated from the lower module 2, the upper clamp 12 drives the positioning piece 31 to move upwards together, the first ejector rod 321 is connected with the positioning piece 31 through the disc spring 33, at this time, the first ejector rod 321 moves upwards together with the positioning piece 31, and when the upper module 1 is completely separated from the lower module 2, the second ejector rod 322 moves downwards under the elastic action of the disc spring 33 to push the forging piece to separate from the second ejector rod 322, so that the forging piece remains in the cavity 11 of the lower module 2.

The lower module 2 has positioning assemblies 8 respectively corresponding to the demolding assemblies 3; the positioning assembly 8 comprises a first positioning member 81 and a second positioning member 82; one end of the first positioning piece 81 is fixed by a clamp, and the other end of the first positioning piece 81 is connected with the second positioning piece 82; the second positioning member 82 abuts against the second ejector rod 322, and the forging is ejected by the second ejector rod 322.

The first positioning member 81 and the second positioning member 82 may be fixedly connected or contact connected. Wherein the first positioning piece 81 is in clamping connection with the through hole of the lower flat plate 4 in the lower clamp 13, so the first positioning piece 81 is fixedly connected with the lower clamp 13; the second positioning member 82 can be used to compress the forging. The positioning components 8 are correspondingly arranged with the demoulding components 3, and the plurality of positioning components 8 are respectively corresponding to the plurality of demoulding components 3, so that the plurality of second positioning pieces 82 are respectively corresponding to the plurality of second ejection rods 322, and the extrusion effect on the upper end face and the lower end face of the forge piece is realized.

As another embodiment, unlike the above embodiment, the guide 32 includes a first ejector rod 321 and a second ejector rod 322, and the first ejector rod 321 and the second ejector rod 322 are fixedly connected in an integrated structure.

As a preferred embodiment of the present application, the upper module 1 is provided therein with a first mounting cavity 9 accommodating the stripper unit 3; a second mounting cavity 10 for accommodating the positioning assembly 8 is arranged in the lower die; the first installation cavity 9 and the second installation cavity 10 are respectively communicated with the cavity 11.

The first installation cavity 9 and the second installation cavity 10 are symmetrically arranged, so that the symmetrical arrangement of the demolding assembly 3 and the positioning assembly 8 is realized. The first installation cavity 9 is communicated with the cavity 11, so that the purpose is to enable the second ejector rod 322 in the demolding assembly 3 to extend into the cavity 11 through the first installation cavity 9 to extrude the forge piece, and the second positioning piece 82 in the positioning assembly 8 can extend into the cavity 11 through the second installation cavity 10 to extrude the forge piece.

As a preferred embodiment of the application, the first mounting cavity 9 comprises a first and a second cavity 91, 92 in communication, the second cavity 92 being in communication with the cavity 11; the positioning piece 31 and the first ejector rod 321 are arranged in the first demolding cavity 91, the second ejector rod 322 is arranged in the second demolding cavity 92, and the second ejector rod 322 partially extends into the first demolding cavity 91.

In this embodiment, as shown in fig. 2, the first mounting cavity 9 includes a first demolding cavity 91 and a second demolding cavity 92, the first demolding cavity 91 is disposed at a side close to the upper holder 12, the second demolding cavity 92 is disposed at a side close to the cavity 11, the first demolding cavity 91 is provided with a positioning member 31, a first ejector rod 321 and a disc spring 33, the second demolding cavity 92 is provided with a second ejector rod 322, a part of the second ejector rod 322 extends out of the first demolding cavity 91 to be connected with the first ejector rod 321, another part of the second ejector rod 322 is disposed in the second demolding cavity 92, and an end of the second ejector rod 322 disposed in the second demolding cavity 92 can extend out of the second demolding cavity 92 into the cavity 11 to squeeze the forging.

The second installation cavity 10 includes a first positioning cavity 101 and a second positioning cavity 102 therein. The first positioning cavity 101 and the second positioning cavity 102 are communicated, and the second positioning cavity 102 is communicated with the cavity 11. Wherein the first positioning member 81 is accommodated in the first positioning chamber 101 and the second positioning member 82 is accommodated in the second positioning chamber 102. The first positioning member 81 is fixedly connected with the lower holder 13. The second positioning member 82 can extend from the second positioning cavity 102 to compress the forging.

As a preferred embodiment of the present application, the width of the second ejector rod 322 in the first demolding cavity 91 is larger than the opening of the second demolding cavity 92, so that the second ejector rod 322 is prevented from being separated from the second demolding cavity 92, and one end of the second ejector rod 322 located in the first demolding cavity 91 protrudes out of the second demolding cavity 92.

In this embodiment, the second ejector rod 322 is configured as a reducing rod, where the second ejector rod 322 includes a first reducing rod and a second reducing rod that are connected, the first reducing rod is located in the first demolding cavity 91, and the second reducing rod is located in the second demolding cavity 92. It should be noted that the radial dimension of the first reducing rod is greater than the radial dimension of the second reducing rod, and the radial dimension of the first reducing rod is greater than the opening dimension of the second demolding cavity 92, so that the second ejector rod 322 is fully extended outside the second demolding cavity 92 because the first reducing rod does not extend into the second demolding cavity 92 when the second reducing rod moves along the extending direction of the second demolding cavity 92.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (10)

1. A forging ejection die structure is provided, wherein a forging is positioned in a cavity between an upper module and a lower module; wherein the upper module is provided with a plurality of demoulding assemblies; the demolding assembly comprises a positioning piece, a guiding piece and a disc spring; the guide piece is connected with the positioning piece through the disc spring; the positioning piece is provided with a fixed end face and a connecting end face which are oppositely arranged; the fixed end face is fixed through a clamp holder; the guide can apply a force to the forging to disengage the forging from the cavity of the upper module and retain it in the cavity of the lower module.

2. The forging ejection die structure as recited in claim 1, wherein the connecting end face has a positioning block protruding toward the guide member, the guide member having a positioning groove toward the connecting end face; the positioning block is embedded into the positioning groove, and the disc spring is connected between the positioning block and the positioning groove.

3. The forging ejection die structure as set forth in claim 2, wherein a step surface is provided in the positioning groove; the disc spring is sleeved on the positioning block, one end of the disc spring is connected with the connecting end face, and the other end of the disc spring is connected with the step face.

4. The forging ejection die structure according to claim 2, wherein the disc spring is disposed in the positioning groove along the outer circumferential direction of the positioning block, one end of the disc spring is connected with the connecting end face, and the other end of the disc spring is connected with the bottom wall of the positioning groove.

5. The forging ejection die structure as recited in claim 1, wherein a gap is left between an end of the guide member facing the positioning member and the positioning member, so that a moving space is provided between the guide member and the positioning member.

6. The forging ejection die structure as recited in claim 1, wherein the guide member includes a first ejection rod and a second ejection rod connected to each other, the first ejection rod and the positioning member are connected by the disc spring, and the second ejection rod ejects the forging under the pushing action of the first ejection rod.

7. The forging ejection die structure as recited in claim 6, wherein the lower die block has positioning members respectively corresponding to the plurality of the stripper members; the positioning assembly comprises a first positioning piece and a second positioning piece; one end of the first positioning piece is fixed through a clamp holder, and the other end of the first positioning piece is connected with the second positioning piece; the forging piece is abutted between the second locating piece and the second ejection rod.

8. The forging ejection die structure as recited in claim 7, wherein a first mounting cavity for accommodating the stripper assembly is provided in the upper die block; a second mounting cavity for accommodating the positioning assembly is arranged in the lower module; the first installation cavity and the second installation cavity are respectively communicated with the cavity.

9. The forging ejection die structure as recited in claim 8, wherein the first mounting cavity comprises a first stripper cavity and a second stripper cavity in communication, the second stripper cavity in communication with the die cavity; the first demolding cavity is internally provided with the positioning piece and the first ejection rod, the second demolding cavity is internally provided with the second ejection rod, and the second ejection rod part extends into the first demolding cavity.

10. The forging ejection die structure as recited in claim 9, wherein a width of the second ejector rod in the first ejection die cavity is greater than an opening of the second ejection die cavity, preventing the second ejector rod from being disengaged from the second ejection die cavity.