CN220739367U

CN220739367U - Liquid die forging and molding die

Info

Publication number: CN220739367U
Application number: CN202322501303.9U
Authority: CN
Inventors: 杨重科
Original assignee: Changsha Leifeng Heavy Forging Co ltd
Current assignee: Changsha Leifeng Heavy Forging Co ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-04-09
Anticipated expiration: 2033-09-14

Abstract

The application discloses liquid mould forges mould relates to the technical field of mould, it includes mould and bed die, the bottom of bed die is provided with demoulding mechanism, demoulding mechanism includes a pair of electricity pushes away the jar, the output of two electricity push away the jar is equipped with the movable plate simultaneously, the top slip grafting of movable plate has a plurality of ejector pins, and the top of each ejector pin is all pegged graft to in the cavity of bed die, the equal swing joint in position of movable plate top for each ejector pin has the sliding sleeve, the middle part threaded connection of sliding sleeve has a pair of fastening rod, and the lateral surface of two fastening rods homoenergetic extrusion contact ejector pin, thereby when single ejector pin appears the damage, can stop using the damage, promote the work piece through the ejector pin synchronization of other groups, guarantee the even balance of work piece atress, can ensure demoulding mechanism's normal use, the lateral surface of a plurality of ejector pins has the part to reveal in the external world simultaneously, do benefit to the heat transfer to the aluminium liquid and promote the work piece to solidify the shaping, moreover design a plurality of ejector pins can support the work piece multiple spot, the convenience is demold.

Description

Liquid die forging and molding die

Technical Field

The present application relates to the technical field of dies, and more particularly, to a liquid die forging die.

Background

Liquid forging is a metal working process that uses fluidity and plasticity of metal in a liquid state to form a part of a desired shape in a die by applying pressure. Liquid forging is generally applied to metallic materials at high temperatures, such as aluminum alloys, nickel-based alloys, titanium alloys, and the like, and is a tool for injecting liquid metal and forming a desired shape or geometry. The liquid die forging die is required to have the characteristics of high temperature resistance, friction resistance and high strength so as to cope with the working environment of high temperature and high pressure, and a corresponding demoulding mechanism is designed for demoulding the workpiece in the die in order to facilitate demoulding of the formed workpiece in the die.

The inventor considers that the demoulding mechanism used in the liquid die forging mould in the related art is mostly composed of one or more ejector pins and an electric pushing cylinder, and the formed workpiece is separated from the mould cavity through the movement of the ejector pins in the mould cavity, however, when a single ejector pin is damaged, other ejector pins eject the workpiece, the situation that the stress of the workpiece is unbalanced, so that the demoulding is blocked, and an operator is required to replace the damaged ejector pin for continuous use. Based on the above problems, a liquid die forging die is provided.

Disclosure of Invention

In order to solve the problems set forth in the background art, the present application provides a liquid die forging die.

The application provides a liquid die forging die adopts following technical scheme:

the utility model provides a liquid mould forges mould, includes mould and bed die, the bottom of bed die is provided with demoulding mechanism, demoulding mechanism includes a pair of electricity pushes away the jar, two the output of electricity pushing away the jar is equipped with the movable plate simultaneously, the top slip grafting of movable plate has a plurality of ejector pins, and each in the cavity of bed die is all pegged graft on the top of ejector pin, the equal swing joint in position of movable plate top for each ejector pin has the sliding sleeve, the middle part threaded connection of sliding sleeve has a pair of fastening rod, and two the lateral surface that the side homoenergetic extrusion contact ejector pin of fastening rod was held.

Through adopting above-mentioned technical scheme to when the damage appears in single ejector pin, can stop using the damage, promote the work piece in step through the ejector pin of other groups, ensure the symmetry of work piece atress, can ensure demoulding mechanism's normal use from this, the lateral surface of a plurality of ejector pins has part to expose in the external world simultaneously, does benefit to the heat transfer to aluminium liquid and promotes the work piece solidification shaping, and it is ejecting that a plurality of ejector pins can support the work piece multiple spot to design moreover, convenient drawing of patterns.

Preferably, through holes are formed in the outer side face of the ejector rod relative to the fastening rods, and the side ends of the two fastening rods can extend into the through holes.

Through adopting above-mentioned technical scheme, limit the ejector pin by fastening rod and through-hole cooperation to ensure the steadiness of ejector pin assembly on the movable plate.

Preferably, the sliding sleeve is rotationally connected to the top of the movable plate, a pair of limiting grooves are formed in the outer side face of the ejector rod, and the side ends of the two fastening rods can extend into the corresponding limiting grooves.

By adopting the technical scheme, the two fastening rods can be aligned with the limiting groove on the ejector rod, so that the fastening rods can be assembled on the sliding sleeve without disassembling the fastening rods.

Preferably, the side ends of the two fastening rods are both rotatably connected with balls, and the two balls are slidably connected with the corresponding limiting grooves.

Through adopting above-mentioned technical scheme, the ball on the fastening rod can be in corresponding limit groove internal rotation, reduces the resistance between fastening rod and the limit groove, ensures the fluency of reciprocating of movable plate.

Preferably, the lower die cavity is provided with a groove body relative to the ejector rod, the top end of the ejector rod is fixedly connected with a limiting pad, and the limiting pad is completely overlapped with the groove body.

Through adopting above-mentioned technical scheme, inject the pad and can cooperate with the cell body, ensure the ejector pin and place in the bed die.

Preferably, the upper die and the lower die are made of 3Cr2W8V materials.

By adopting the technical scheme, the quality of the product can be further ensured, and meanwhile, the demolding is facilitated.

Preferably, the concave cavities of the upper die and the lower die are coated with graphite.

By adopting the technical scheme, the demolding and the protection of the cavity of the mold are facilitated.

In summary, the present application includes the following beneficial technical effects:

the movable plate is pushed to move upwards by the two electric pushing cylinders, so that the movable plate drives each ejector rod to move upwards, each ejector rod moves upwards and can contact and push a formed workpiece, the workpiece is separated from a die cavity of a lower die, when a single ejector rod is damaged, an operator can rotate two fastening rods on a sliding sleeve matched with the ejector rod, so that the two fastening rods are not in contact with the ejector rod, the damaged ejector rod can not be driven when the movable plate moves upwards, the structural design is adopted, when the single ejector rod is damaged, the damaged ejector rod can be stopped, the workpiece is synchronously pushed by other groups of ejector rods, the uniformity of the stress of the workpiece is guaranteed, the normal use of the demolding mechanism can be guaranteed, and meanwhile, the outer side surfaces of the ejector rods are partially exposed outside, so that the heat exchange of aluminum liquid is beneficial to promote the solidification and forming of the workpiece.

Drawings

FIG. 1 is a schematic view of a liquid die forging die according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure of a lower die in an embodiment of the present application;

FIG. 3 is a schematic view of a demolding mechanism in an embodiment of the present application;

fig. 4 is a schematic structural view of the ejector pin, the sliding sleeve and the fastening rod in the embodiment of the application.

Reference numerals illustrate: 1. an upper die; 2. a lower die; 3. an electric pushing cylinder; 4. a movable plate; 5. a push rod; 6. a sliding sleeve; 7. a fastening rod; 8. a through hole; 9. defining a slot; 10. a ball; 11. a tank body; 12. the pad is defined.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-4.

It is noted that the figures are schematic and not drawn to scale. Relative dimensions and proportions of parts of the figures have been shown exaggerated or reduced in size, for the sake of clarity and convenience in the drawings, and any dimensions are merely illustrative and not limiting. The same reference numerals are used for the same structures, elements, or accessories appearing in more than two figures to embody similar features.

The embodiment of the application discloses a liquid die forging die. Referring to fig. 1 to 4, a liquid die forging die comprises an upper die 1 and a lower die 2, a demoulding mechanism is arranged at the bottom of the lower die 2 and comprises a pair of electric pushing cylinders 3, a movable plate 4 is simultaneously assembled at the output ends of the two electric pushing cylinders 3, a plurality of ejector rods 5 are slidably inserted at the top of the movable plate 4, the top ends of the ejector rods 5 are inserted into a cavity of the lower die 2, a sliding sleeve 6 is movably connected at the top of the movable plate 4 relative to the position of each ejector rod 5, a pair of fastening rods 7 are connected with the middle threads of the sliding sleeve 6, and the side ends of the two fastening rods 7 can be in extrusion contact with the outer side surfaces of the ejector rods 5.

Specifically, the upper die 1 and the lower die 2 are assembled on the liquid die forging machine tool, then aluminum liquid is injected into a concave cavity formed between the upper die 1 and the lower die 2, then the liquid die forging machine tool pushes the upper die 1 to move downwards, aluminum liquid in the lower die 2 is extruded, after the aluminum liquid is solidified and formed, the upper die 1 moves upwards, then the movable plate 4 is pushed to move upwards through the two electric pushing cylinders 3, the movable plate 4 drives each ejector rod 5 to move upwards, each ejector rod 5 can contact and push formed workpieces, the workpieces are separated from a die cavity of the lower die 2, when a single ejector rod 5 is damaged, an operator can rotate two fastening rods 7 on a sliding sleeve 6 matched with the ejector rods 5, so that the two fastening rods 7 are not in contact with the ejector rods 5, the movable plate 4 can not drive the damaged ejector rods 5, through the structural design, when the single ejector rods 5 are damaged, the use of the ejector rods 5 of other groups can be stopped, the workpieces are synchronously pushed, the uniform demolding mechanism can ensure that the demolding mechanism can be stressed, and simultaneously, the plurality of the ejector rods can be conveniently cooled by the design of the aluminum liquid, and the demolding mechanism can be conveniently cooled by the plurality of the ejector rods 5, and the outside of the demolding mechanism can be conveniently cooled, and the plurality of the molded workpieces can be conveniently.

Referring to fig. 3 and 4, through holes 8 are formed in the outer side surface of the ejector rod 5 opposite to the positions of the fastening rods 7, and the side ends of the two fastening rods 7 can extend into the through holes 8, when the fastening rods 7 rotate to contact the ejector rod 5, the side ends of the fastening rods 7 can be inserted into the through holes 8, and the fastening rods 7 and the through holes 8 are matched to limit the ejector rod 5, so that the stability of assembly of the ejector rod 5 on the movable plate 4 is guaranteed.

Referring to fig. 3 and 4, the sliding sleeve 6 is rotatably connected to the top of the movable plate 4, a pair of limiting grooves 9 are formed on the outer side surface of the ejector rod 5, and both side ends of the two fastening rods 7 can extend into the corresponding limiting grooves 9, when the fastening rods 7 are not inserted into the through holes 8 to limit the ejector rod 5, the two fastening rods 7 can be aligned with the limiting grooves 9 on the ejector rod 5, so that the fastening rods 7 can be assembled on the sliding sleeve 6 without removing the fastening rods 7.

Referring to fig. 4, the side ends of the two fastening rods 7 are both rotatably connected with balls 10, and the two balls 10 are slidably connected with the corresponding limiting grooves 9, when the movable plate 4 moves up and down, the balls 10 on the fastening rods 7 can rotate in the corresponding limiting grooves 9, so that the resistance between the fastening rods 7 and the limiting grooves 9 is reduced, and the smoothness of the up and down movement of the movable plate 4 is ensured.

Referring to fig. 2 and 3, a groove 11 is formed in the position of the cavity of the lower die 2 relative to the ejector rod 5, a limiting pad 12 is fixedly connected to the top end of the ejector rod 5, the limiting pad 12 is completely overlapped with the groove 11, and the limiting pad 12 can be matched with the groove 11 by arranging the limiting pad 12, so that the ejector rod 5 is placed in the lower die 2.

Referring to fig. 2, the upper mold 1 and the lower mold 2 are both made of 3Cr2W8V (high-speed steel, M2 steel) materials, which have stable properties, can further ensure the quality of products, and facilitate demolding.

Referring to fig. 2, the cavities of the upper mold 1 and the lower mold 2 are coated with graphite, which is a material with good lubricating property and high temperature resistance, and is beneficial to demolding and protecting the cavity of the mold.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

The implementation principle of the liquid die forging die in the embodiment of the application is as follows: firstly, an upper die 1 and a lower die 2 are assembled on a liquid die forging machine tool, then aluminum liquid is injected into a concave cavity formed between the upper die 1 and the lower die 2, then the upper die 1 is pushed by the liquid die forging machine tool to move downwards, aluminum liquid in the lower die 2 is extruded, after the aluminum liquid is solidified and formed, the upper die 1 moves upwards, then a movable plate 4 is pushed to move upwards by two electric pushing cylinders 3, so that the movable plate 4 drives each ejector rod 5 to move upwards, each ejector rod 5 can contact and push a formed workpiece, the workpiece is separated from a die cavity of the lower die 2, when a single ejector rod 5 is damaged, an operator can rotate two fastening rods 7 on a sliding sleeve 6 matched with the ejector rod 5, so that the two fastening rods 7 are not in contact with the ejector rod 5, and the movable plate 4 can not drive the damaged ejector rod 5 when moving upwards.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a liquid mould forges mould, includes mould (1) and bed die (2), the bottom of bed die (2) is provided with demoulding mechanism, its characterized in that: the demolding mechanism comprises a pair of electric pushing cylinders (3), two output ends of the electric pushing cylinders (3) are simultaneously provided with a movable plate (4), the top of the movable plate (4) is slidably inserted with a plurality of ejector rods (5), the top ends of the ejector rods (5) are inserted into a concave cavity of a lower mold (2), sliding sleeves (6) are movably connected to the top of the movable plate (4) relative to the positions of the ejector rods (5), a pair of fastening rods (7) are connected to the middle threads of the sliding sleeves (6), and the side ends of the fastening rods (7) can be in extrusion contact with the outer side faces of the ejector rods (5).

2. A liquid die forging die as recited in claim 1, wherein: through holes (8) are formed in the outer side face of the ejector rod (5) relative to the fastening rods (7), and the side ends of the two fastening rods (7) can extend into the through holes (8).

3. A liquid die forging die as recited in claim 2, wherein: the sliding sleeve (6) is rotationally connected to the top of the movable plate (4), a pair of limiting grooves (9) are formed in the outer side face of the ejector rod (5), and the side ends of the two fastening rods (7) can extend into the corresponding limiting grooves (9).

4. A liquid die forging die according to claim 3, wherein: the side ends of the two fastening rods (7) are respectively and rotatably connected with a ball (10), and the two balls (10) are in sliding connection with the corresponding limiting grooves (9).

5. A liquid die forging die as recited in claim 1, wherein: the groove body (11) is arranged at the position of the concave cavity of the lower die (2) relative to the ejector rod (5), a limiting pad (12) is fixedly connected to the top end of the ejector rod (5), and the limiting pad (12) and the groove body (11) are completely overlapped.

6. A liquid die forging die as recited in claim 1, wherein: the upper die (1) and the lower die (2) are made of 3Cr2W8V materials.

7. A liquid die forging die as recited in claim 1, wherein: and the concave cavities of the upper die (1) and the lower die (2) are coated with graphite.