CN112517761A

CN112517761A - Gas-liquid bidirectional metal shell stamping die

Info

Publication number: CN112517761A
Application number: CN202011296162.6A
Authority: CN
Inventors: 肖惠君
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-03-19

Abstract

The invention discloses a gas-liquid bidirectional metal shell stamping die, which belongs to the technical field of stamping, and is characterized in that during stamping, a plate to be stamped generates extrusion force on a bidirectional gas-liquid annular bag under the action of an upper die to deform the bidirectional gas-liquid annular bag, on one hand, double material liquid can overflow into an overflow layer, when the stamped plate deforms and contacts with the inner wall of the overflow layer, the friction force between the plate and the overflow layer is obviously reduced, the crack rate of the surface of a finished metal shell is effectively reduced, the quality of the finished product is improved, on the other hand, after the stamping is finished, the bidirectional gas-liquid annular bag recovers the deformation, a certain upward jacking loosening effect is realized on the finished metal shell, so that the effect of reducing the demoulding difficulty is achieved, meanwhile, under the action of the double material liquid, obvious and deep marks can be generated at the crack on the outer surface of the finished metal shell, and workers are effectively helped to maintain and repair the crack in time, thereby effectively improving the quality of the finished metal shell.

Description

Gas-liquid bidirectional metal shell stamping die

Technical Field

The invention relates to the technical field of stamping, in particular to a gas-liquid bidirectional metal shell stamping die.

Background

The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size. Stamping and forging are plastic working (or called pressure working), and are called forging and pressing. The stamped blanks are mainly hot and cold rolled steel sheets and strips. In the world, 60-70% of steel materials are plates, and most of the plates are punched to form finished products. The body, chassis, oil tank, radiator sheet, boiler steam drum, shell of container, iron core silicon steel sheet of motor and electric appliance are all made by punching. There are also a large number of stamped parts in products such as instruments, household appliances, bicycles, office machines, and household utensils.

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping, and is called cold stamping die (commonly called cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. The general stamping die mainly comprises an upper male die, a lower female die, a movable upper die, a fixed lower die, a cylinder and the like.

In the stamping process, because the metal casing finished product atress takes place quick deformation in the time of the utmost point short, and because the matching that coincide of drift and mould, make the metal casing finished product that forms laminate at the mould inner wall after the punching press, although the inner wall of die cavity can generally be smeared with mold release oil, but during the drawing of patterns, because the distance between metal casing finished product and the die cavity inner wall is less, the condition of metal casing finished product card in the die cavity still exists, the drawing of patterns degree of difficulty is still great, influence the overall efficiency of punching press, when receiving power deformation simultaneously, the off-the-shelf surface of metal casing can receive the friction with die cavity inner wall in close contact with, when quick deformation, the surface easily produces the crackle, untimely handling, easily lead to the finished product quality relatively poor.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a gas-liquid bidirectional metal shell stamping die, during stamping, a plate to be stamped generates extrusion force on a bidirectional gas-liquid annular bag under the action of an upper die to deform the bidirectional gas-liquid annular bag, on one hand, double liquid can overflow into a liquid overflowing layer, when the stamped plate deforms and contacts with the inner wall of the liquid overflowing layer, the friction force between the plate and the liquid overflowing layer is obviously reduced, the crack rate of the surface of a finished metal shell is effectively reduced, the quality of the finished product is improved, on the other hand, after stamping is finished, the bidirectional gas-liquid annular bag recovers to deform, a certain upward jacking and loosening effect is achieved on the finished metal shell, the effect of reducing the demoulding difficulty is achieved, meanwhile, under the action of double liquid, obvious deep marks can be generated at the cracks on the outer surface of the finished metal shell, and workers are effectively helped to maintain and repair the cracks in time, thereby effectively improving the quality of the finished metal shell.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A gas-liquid bidirectional metal shell stamping die comprises a die body, wherein an upper die is mounted at the upper end of the die body through a hydraulic rod, a lower die is fixedly connected at the upper end of the die body and is positioned under the upper die, an overflow layer is fixedly connected to the inner wall of the lower die, a bidirectional gas-liquid annular bag is arranged at the end part of the overflow layer positioned at the mouth part of a lower die cavity, the bidirectional gas-liquid annular bag comprises a bottom plate, an outer bag body fixedly connected to the outer end of the bottom plate, an inner diaphragm fixedly connected inside the outer bag body and a plurality of liquid outlet pipes fixedly connected to the lower end of the bottom plate, the liquid outlet pipes are inserted at the upper end part of the overflow layer, inert gas is filled in a space enclosed between the outer bag body and the inner diaphragm, double liquid is filled in a space enclosed by the outer bag body, the inner diaphragm and the bottom plate, and a plate to be, make it take place the deformation, on the one hand two feed liquids can spill over to the overflow liquid in situ, when treating that punching press panel deformation and overflow liquid inner wall contact, show the frictional force that reduces between the two, effectively reduce the crack rate on metal casing finished product surface, improve the finished product quality, on the other hand, after the punching press is ended, two-way gas-liquid ring bag is recovering deformation, play certain top-up not hard up effect to the metal casing finished product, thereby reach the effect that reduces the drawing of patterns degree of difficulty, simultaneously under the effect of two feed liquids, can produce obvious darker seal of a government organization in old china in the crack department of metal casing finished product surface, effectively help the staff in time to maintain and repair crack department, and then effectively improve the off-the-shelf quality of metal casing.

Further, outer utricule and interior diaphragm are elastic material and make for the both homoenergetic takes place deformation when receiving the extrusion, and homoenergetic after the extrusion force disappears resumes deformation, can realize extruding the effect of two feed liquids, also can reach the off-the-shelf effect of jack-up metal casing after the punching press finishes simultaneously, and then reduce the drawing of patterns degree of difficulty, the overflow layer is many-pass thru hole structure, and the overflow layer is made for little check metal, and when being convenient for two feed liquids enter into the overflow in situ, can spill over to the overflow inner wall of liquid layer, thereby contact with the metal casing finished product.

Further, two feed liquids and inert gas are the saturation packing for two-way gas-liquid ring bag wholly presents the relatively stable form, receives the extrusion and takes place the deformation back, when losing the extrusion force, can resume deformation fast, makes the effect to the off-the-shelf not hard up of metal casing and jack-up better.

Furthermore, the double-liquid is formed by uniformly mixing the colored oil-based ink and the lubricating oil according to the volume ratio of 1:2-3, on one hand, the colored oil-based ink can be uniformly mixed with the lubricating oil, and on the other hand, when the colored oil-based ink contacts the outer surface of the metal shell finished product, a remarkable deep mark can be generated on a crack on the outer surface of the metal shell finished product, so that the effect of marking the crack is achieved, a worker is effectively helped to maintain and repair the crack in time, and the quality of the metal shell finished product is effectively improved.

Furthermore, the end of the overflow layer, which is far away from the inner wall of the lower die, is fixedly filled with a homogenizing cotton layer, a plurality of uniformly distributed liquid guide whiskers are embedded in the homogenizing cotton layer, the liquid outlet pipe is positioned outside the homogenizing cotton layer, when the double-material liquid overflows into the overflow layer, the double-material liquid can be guided into the homogenizing cotton layer through the liquid guide whiskers, and the double-material liquid can be uniformly distributed on the inner wall of the overflow layer through the homogenizing cotton layer, so that the lubricating and marking effects on the outer surface of the metal shell finished product are better.

Furthermore, the liquid guide beards and the homogenizing cotton layer are made of oil absorption materials, so that the guiding effect on the double liquid materials is better, the length of the end part of each liquid guide beard embedded into the homogenizing cotton layer is not less than half of the total length of the liquid guide beard, and the length is too short, so that the uniform dispersion speed of the double liquid materials in the homogenizing cotton layer is low, and the lubricating and marking effects on a metal shell finished product which is just stamped are influenced.

Further, the magnetism is inhaled and is sealed the ball under drain pipe lower extreme oral area fixedly connected with magnetism, magnetism is inhaled and is sealed the ball and include a plurality of spacing ropes and the rubber marble of fixed connection at the spacing rope lower extreme with drain pipe inner wall fixed connection, rubber marble and the liquid drain pipe oral area in close contact with, under the effect of magnetism is inhaled and is sealed the ball for when not punching press, can carry out the inseparable seal to the drain pipe oral area, make two material liquid be difficult for overflowing in advance, thereby it is better to effectively guarantee its protection and the marking effect of treating punching press panel when carrying out the punching press.

Furthermore, the limiting rope is made of elastic materials and is in a stretched state, so that the limiting rope can enable the rubber marble to seal the liquid outlet pipe opening, when the rubber marble is extruded, overflowed double-material liquid generates thrust to the rubber marble, the limiting rope extends, the liquid outlet pipe opening is in an opening state, and the double-material liquid can overflow.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is when the punching press, treat that the punching press panel produces the extrusion force to two-way gas-liquid ring bag under the effect of last mould, make it take place deformation, on the one hand two feed liquids can spill over to in the overflow liquid layer, treat that the punching press panel deformation and overflow liquid in situ wall contact, show and reduce the frictional force between the two, effectively reduce the crack rate on metal casing finished product surface, improve finished product quality, on the other hand, after the punching press is finished, two-way gas-liquid ring bag is recovering deformation, play certain not hard up effect of jack-up upwards to metal casing finished product, thereby reach the effect that reduces the drawing of patterns degree of difficulty, simultaneously under the effect of two feed liquids, can produce obvious darker seal of a government organization in place at the crack of metal casing finished product surface, effectively help the staff in time maintain and repair crack department, and then effectively improve the quality of metal casing finished product.

(2) Outer utricule and interior septum are elastic material and make, make the two homoenergetic take place deformation when receiving the extrusion, and after the extrusion force disappears homoenergetic resumes deformation, can realize extruding the effect of two feed liquids, also can reach the off-the-shelf effect of jack-up metal casing after the punching press is ended simultaneously, and then reduce the drawing of patterns degree of difficulty, the overflow layer is for leading to the thru hole structure more, and the overflow layer is made for little check metal, be convenient for two feed liquids enter into the overflow in situ time, can spill over to the overflow intralayer inner wall, thereby contact with the metal casing finished product.

(3) Two feed liquids and inert gas are saturated and are filled for two-way gas-liquid ring bag wholly presents relatively stable form, receives the extrusion and takes place the deformation back, when losing the extrusion force, can resume deformation fast, make the effect to the off-the-shelf not hard up of metal casing and jack-up better.

(4) The double-liquid is formed by uniformly mixing colored oily ink and lubricating oil according to the volume ratio of 1:2-3, on one hand, the colored oily ink can be uniformly mixed with the lubricating oil, on the other hand, when the colored oily ink contacts the outer surface of the metal shell finished product, a remarkable and deep mark can be generated on a crack on the outer surface of the metal shell finished product, the effect of marking the crack is further achieved, workers are effectively helped to maintain and repair the crack in time, and the quality of the metal shell finished product is further effectively improved.

(5) The one end fixed packing that the lower mould inner wall was kept away from to the overflow layer has the cotton layer of homogenization, the cotton in-layer of homogenization is inlayed and is had a plurality of evenly distributed's drain palpus, the drain pipe is located the cotton layer outside of homogenization, when the overflowed to the overflow in situ of extra quality liquid, at first can guide extra quality liquid to the cotton in-situ of homogenization through the drain palpus, can make extra quality liquid evenly distributed at the overflow layer inner wall through the cotton layer of homogenization to it is better to the lubrication and the marking effect of metal casing finished product surface.

(6) The liquid guide beard and the homogenizing cotton layer are made of oil absorption materials, so that the guiding effect on double liquid materials is better, the length of the end part of the liquid guide beard embedded into the homogenizing cotton layer is not less than half of the total length of the liquid guide beard, the length is too short, the uniform dispersion speed of the double liquid materials in the homogenizing cotton layer is low, and the lubricating and marking effects on a metal shell finished product which is just punched are influenced.

(7) The utility model discloses a punching press plate material, including drain pipe, drain pipe lower extreme oral area fixedly connected with magnetism seals the ball, magnetism seals the ball and includes a plurality of spacing ropes of fixed connection and the rubber marble of fixed connection at the spacing rope lower extreme with drain pipe inner wall fixed connection, rubber marble and drain pipe oral area in close contact with, under the effect of magnetism seals the ball, make when not punching press, can carry out inseparable sealing to the drain pipe oral area, make two material liquid be difficult for overflowing in advance, thereby it is better to effectively guarantee its protection and the marking effect of treating punching press panel when carrying out the punching press.

(8) The limiting rope is made of elastic materials, the limiting rope is in a stretched state, the limiting rope enables the rubber marbles to be capable of sealing the liquid outlet pipe openings, when the rubber marbles are squeezed, overflowed double-material liquid generates thrust to the rubber marbles, the limiting rope extends, the liquid outlet pipe openings are in an opening state at the moment, and the double-material liquid can overflow.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural diagram of the front side of the lower mold of the present invention;

FIG. 3 is a schematic structural view of a cavity opening portion of a lower mold of the present invention;

FIG. 4 is a schematic structural view of a lower port of the magnetic seal pipe according to the present invention when closed;

FIG. 5 is a schematic structural view of the lower port of the magnetic seal tube of the present invention when opened.

The reference numbers in the figures illustrate:

the device comprises a die body 1, an upper die 2, a lower die 3, a liquid overflow layer 4, a bidirectional gas-liquid annular bag 5, an outer bag body 51, an inner diaphragm 52, a bottom plate 53, a liquid guide whisker 6, a homogenized cotton layer 7, a liquid outlet pipe 8, a limiting rope 91 and a rubber marble 92.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, a gas-liquid bidirectional metal shell stamping die comprises a die body 1, an upper die 2 is mounted at the upper end of the die body 1 through a hydraulic rod, a lower die 3 is fixedly connected to the upper end of the die body 1, the lower die 3 is located under the upper die 2, a liquid overflow layer 4 is fixedly connected to the inner wall of the lower die 3, and a bidirectional gas-liquid annular bag 5 is arranged at the end of the liquid overflow layer 4 located at the die cavity opening of the lower die 3.

Referring to fig. 3, the bidirectional gas-liquid annular bag 5 includes a bottom plate 53, an outer bag body 51 fixedly connected to an outer end of the bottom plate 53, an inner diaphragm 52 fixedly connected to an inner portion of the outer bag body 51, and a plurality of liquid outlet pipes 8 fixedly connected to a lower end of the bottom plate 53, the plurality of liquid outlet pipes 8 are all inserted into an upper end portion of the overflow layer 4, a space enclosed between the outer bag body 51 and the inner diaphragm 52 is filled with an inert gas, a space enclosed by the outer bag body 51, the inner diaphragm 52 and the bottom plate 53 is filled with a dual liquid, the outer bag body 51 and the inner diaphragm 52 are made of an elastic material, when a metal plate to be punched is placed on the lower die 3, under the punching action of the upper die 2, the plate to be punched generates an extrusion force on the bidirectional gas-liquid annular bag 5, at this time, the outer bag body 51 and the inner diaphragm 52 can deform, on the one hand, the dual liquid can overflow along the liquid outlet pipes, the friction force between the outer capsule and the inner capsule is obviously reduced, the crack rate on the surface of a plate to be punched is effectively reduced, the quality of a finished product is improved, on the other hand, after punching is finished, the outer capsule 51 can restore deformation under the support of inert gas in the outer capsule, and a certain upward jacking loosening effect is further achieved on a finished metal shell, so that the effect of reducing the demolding difficulty is achieved, the overflow layer 4 is of a multi-way through hole structure, and the overflow layer 4 is made of micro-lattice metal, so that when double feed liquid enters the overflow layer 4, the double feed liquid can overflow to the inner wall of the overflow layer 4, and is contacted with the finished metal shell;

the double-liquid and inert gases are filled in a saturated mode, so that the bidirectional gas-liquid annular bag 5 is relatively stable in shape integrally, after deformation is caused by extrusion, deformation can be quickly recovered when extrusion force is lost, the loosening and jacking effects on a metal shell finished product are better, the double-liquid is formed by uniformly mixing colored oil ink and lubricating oil according to the volume ratio of 1:2-3, on one hand, the double-liquid can be uniformly mixed with the lubricating oil through the colored oil ink, on the other hand, when the double-liquid and inert gases contact the outer surface of the metal shell finished product, obvious deep marks can be generated on cracks on the outer surface of the metal shell finished product, the effect of marking the cracks is further achieved, workers are effectively helped to maintain and repair the cracks in time, and the quality of the metal shell finished product is further effectively improved.

One end of the overflow layer 4 far away from the inner wall of the lower die 3 is fixedly filled with a homogenized cotton layer 7, a plurality of uniformly distributed liquid guide whiskers 6 are embedded in the homogenized cotton layer 7, a liquid outlet pipe 8 is positioned at the outer side of the homogenized cotton layer 7, when the double-material liquid overflows into the overflow layer 4, the double-material liquid can be guided into the homogenizing cotton layer 7 through the liquid guide whiskers 6, the double-material liquid can be uniformly distributed on the inner wall of the overflow layer 4 through the homogenizing cotton layer 7, thereby the lubricating and marking effect on the outer surface of the finished metal shell is better, the liquid guide beard 6 and the homogenizing cotton layer 7 are made of oil absorption materials, the guide effect on double liquid is better, and the length of the end part of the liquid guide whisker 6 embedded into the homogenizing cotton layer 7 is not less than half of the total length of the liquid guide whisker 6, and the length is too short, so that the uniform dispersion speed of the double liquid in the homogenizing cotton layer 7 is slow, and the lubrication and marking effects on a metal shell finished product which is just punched are influenced.

Referring to fig. 4-5, a magnetic sealing ball is fixedly connected to a lower end opening of the liquid outlet pipe 8, the magnetic sealing ball includes a plurality of limiting ropes 91 fixedly connected to an inner wall of the liquid outlet pipe 8 and rubber marbles 92 fixedly connected to lower ends of the limiting ropes 91, the rubber marbles 92 are in close contact with an opening of the liquid outlet pipe 8, under the action of the magnetic sealing ball, the opening of the liquid outlet pipe 8 can be tightly sealed when not being punched, so that the double-material liquid is not easy to overflow in advance, thereby effectively ensuring better protection and marking effects on a plate to be punched when being punched, the limiting ropes 91 are made of elastic materials, the limiting ropes 91 are in a stretched state, the rubber marbles 92 can seal the opening of the liquid outlet pipe 8, when being squeezed, the overflowing double-material liquid generates thrust to the rubber marbles 92, the limiting ropes 91 stretch, and the opening of the liquid outlet pipe 8 is in an open state, so that the double feed liquid can overflow.

During punching, the plate to be punched generates extrusion force on the bidirectional gas-liquid annular bag 5 under the action of the upper die 2, so that the plate is deformed, on one hand, double liquid can overflow into the overflow layer 4, when the deformation of the plate to be punched is contacted with the inner wall of the overflow layer 4, the friction force between the plate and the overflow layer is obviously reduced, the crack rate of the surface of a metal shell finished product is effectively reduced, and the quality of a finished product is improved.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a two-way type metal casing stamping die of gas-liquid, includes mould body (1), mould body (1) upper end is installed through the hydraulic stem and is gone up mould (2), mould body (1) upper end still fixedly connected with lower mould (3), lower mould (3) are located and are gone up mould (2) under, its characterized in that: the overflow liquid layer (4) is fixedly connected to the inner wall of the lower die (3), a bidirectional gas-liquid annular bag (5) is arranged at the end, located at the opening of a die cavity of the lower die (3), of the overflow liquid layer (4), the bidirectional gas-liquid annular bag (5) comprises a bottom plate (53), an outer bag body (51) fixedly connected to the outer end of the bottom plate (53), an inner membrane (52) fixedly connected to the inner portion of the outer bag body (51) and a plurality of liquid outlet pipes (8) fixedly connected to the lower end of the bottom plate (53), the liquid outlet pipes (8) are inserted into the upper end of the overflow liquid layer (4), inert gas is filled in a space defined by the outer bag body (51) and the inner membrane (52), and double liquid is filled in a space defined by the outer bag body (51), the inner.

2. The gas-liquid bidirectional metal shell stamping die as recited in claim 1, wherein: the outer bag body (51) and the inner diaphragm (52) are made of elastic materials, and the overflow layer (4) is of a multi-way through hole structure.

3. The gas-liquid bidirectional metal shell stamping die as recited in claim 1, wherein: and the double feed liquid and the inert gas are both filled in a saturated mode.

4. The gas-liquid bidirectional metal shell stamping die as recited in claim 3, wherein: the double-liquid is formed by uniformly mixing colored oil-based ink and lubricating oil according to the volume ratio of 1: 2-3.

5. The gas-liquid bidirectional metal shell stamping die as recited in claim 1, wherein: one end, far away from the inner wall of the lower die (3), of the overflow layer (4) is fixedly filled with a homogenization cotton layer (7), a plurality of uniformly distributed liquid guide whiskers (6) are embedded in the homogenization cotton layer (7), and the liquid outlet pipe (8) is located on the outer side of the homogenization cotton layer (7).

6. The gas-liquid bidirectional metal shell stamping die as recited in claim 5, wherein: the liquid guide whiskers (6) and the homogenizing cotton layer (7) are made of oil absorption materials, and the length of the end part of the liquid guide whiskers (6) embedded into the homogenizing cotton layer (7) is not less than half of the total length of the liquid guide whiskers (6).

7. The gas-liquid bidirectional metal shell stamping die as recited in claim 1, wherein: the utility model discloses a rubber marble magnetic suction device, including drain pipe (8), drain pipe (8) lower extreme oral area fixedly connected with magnetism seals the ball, magnetism seals the ball and includes a plurality of spacing ropes (91) and the rubber marble (92) of fixed connection at spacing rope (91) lower extreme with drain pipe (8) inner wall fixed connection, rubber marble (92) and drain pipe (8) oral area in close contact with.

8. The gas-liquid bidirectional metal shell stamping die as recited in claim 7, wherein: the limiting rope (91) is made of elastic materials, and the limiting rope (91) is in a stretched state.