CN110814314A - Casting and forging integrated die casting machine - Google Patents
Casting and forging integrated die casting machine Download PDFInfo
- Publication number
- CN110814314A CN110814314A CN201911185914.9A CN201911185914A CN110814314A CN 110814314 A CN110814314 A CN 110814314A CN 201911185914 A CN201911185914 A CN 201911185914A CN 110814314 A CN110814314 A CN 110814314A
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- forging
- die
- casting
- cylinder
- extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention is suitable for the technical field of pressure casting, and discloses a casting and forging integrated die casting machine which comprises a rack, wherein the rack is provided with a mold locking device for locking a mold and an extrusion system for filling a mold cavity with a molten raw material, the rack is also provided with a forging system for extruding a prestored raw material into the mold cavity, and the forging system comprises a forging rod and a forging driving part for driving the forging rod to act. According to the casting and forging integrated die-casting machine provided by the embodiment of the invention, after the extrusion system fills the die cavity with the molten raw materials, the forging rod acts to extrude at least part of the prestored raw materials to the die cavity of the die, so that the raw materials in the die cavity are further densified, the generation of air hole and sand hole in the workpiece is avoided, and the workpiece is prevented from having defects such as cracks, cold shut, sink and the like.
Description
Technical Field
The invention belongs to the technical field of pressure casting, and particularly relates to a casting and forging integrated die-casting machine.
Background
At present, the die casting machine on the market can only use casting aluminum alloy, such as ADC12, 380 and other materials, if wrought aluminum alloy die casting products are used, the obtained products can have various defects, such as cracks, cold shut, sink and the like, simultaneously, because the wrought aluminum alloy can only be used on extrusion and forging.
In addition, the aluminum alloy parts cast by the prior common die casting machine have lower density and tensile strength, cannot meet the standard required by high strength of automobiles, and cannot be anodized.
In addition, the prior common die-casting machine needs to use high-speed injection to ensure that the product has no defect on the appearance during die-casting, and the workpiece has inevitable air holes and sand holes inside during the high-speed injection production process, so that the workpiece can not be subjected to heat treatment, and if the workpiece is subjected to heat treatment, the air holes inside the workpiece expand, so that the workpiece has poor surface coating and the like, and the performance of the workpiece is poor.
Disclosure of Invention
The present invention is directed to at least solve one of the above problems, and provides a die casting and forging machine with good performance of the product.
The technical scheme of the invention is as follows: the utility model provides an integrative die casting machine of casting and forging, includes the frame, the frame is provided with the mode locking device that is used for locking mould and is used for annotating the extrusion system of mould die cavity with the melting raw materials, the frame still is provided with and is used for prestoring the raw materials and extrudees the forging and pressing system to mould die cavity, the forging and pressing system is including forging the pole and being used for the drive forge the forging and pressing driver part of pole action.
Specifically, the frame has a die mounting position, and the extrusion system and the forging system are respectively arranged on two sides of the die mounting position.
Or the rack is provided with a die mounting position, and the forging system is provided with two sets of forging systems which are respectively arranged on two sides of the die mounting position.
Specifically, the forging drive component comprises a forging cylinder, and the forging rod is connected to the forging cylinder.
Specifically, the forging oil cylinder is provided with a forging piston, the forging piston is connected with a first driving part for driving the forging piston to move forwards, and the forging driving part further comprises a forging compressed air tank for instantly filling compressed air into the forging oil cylinder when the forging piston moves forwards to a set position.
Specifically, the forging oil cylinder is connected with a forging oil circuit board, and the forging rod is connected to the forging oil circuit board.
Specifically, the forging compressed gas tank is a nitrogen gas tank provided with one or at least two.
Specifically, the extrusion system comprises an extrusion rod and an extrusion oil cylinder for driving the extrusion rod.
Specifically, the extrusion oil cylinder is provided with an extrusion piston, the extrusion piston is connected with a second driving component for driving the extrusion piston to move forwards, and the extrusion driving component further comprises an injection compressed air tank for continuously filling compressed air into the extrusion oil cylinder when the extrusion piston moves forwards to a set position.
Specifically, the die is provided with a forging hole, the forging rod is arranged at one end of the forging hole, and the other end of the forging hole is communicated with the cavity of the die.
According to the casting and forging integrated die-casting machine provided by the embodiment of the invention, after the extrusion system fills the die cavity with the molten raw material, the forging rod acts to extrude at least part of the prestored raw material to the die cavity of the die, so that the raw material in the die cavity is further densified, the generation of air hole and sand hole in the workpiece is avoided, and the workpiece is prevented from having defects such as cracks, cold shut, sink and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic plan view of a cast-forging integrated die-casting machine according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a casting and forging integrated die-casting machine according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and fig. 2, a die casting and forging integrated die-casting machine provided by an embodiment of the present invention includes a frame 1, where the frame 1 is provided with a mold locking device 2 for locking a mold and an extrusion system 40 for filling a mold cavity with a molten material, the frame 1 is further provided with a forging system 30 for extruding a prestored material into the mold cavity, the forging system 30 includes a forging rod 31 (in this embodiment, the forging rod 31 refers to a rod for forging a product by the forging system 30, and is not specifically a rod for forging and forming), and a forging driving component for driving the forging rod 31 to move, after the extrusion system 40 fills the mold cavity with the molten material, the forging rod 31 moves to extrude the prestored material into the mold cavity at least partially, so as to further densify the material in the mold cavity, avoid air holes and sand holes in the product, and prevent the product from having cracks The forging rod 31 has the advantages that the performance of the product is greatly improved due to the forging effect of the forging rod 31, the density and the tensile strength of the product are high, the product can meet the standard required by high strength of automobiles, the raw material can be aluminum alloy materials such as ADC12 and 380, the wrought aluminum alloy can also be adopted, and the finished product can be subjected to anodic oxidation.
The method can adopt wrought aluminum alloys (7075, 6061 and other commercial materials), mainly aims at the forming of high-strength wrought aluminum alloy materials, melts into liquid at a high temperature of 730-750 ℃, pours into a feeding cup, an extrusion system extrudes forwards at a high pressure of 0.1M/S to fill a cavity, a pouring gate and a forging hole of a forging die, and a product in the cavity of the die is forged by the forging system at a high pressure in a cooling process (generally, the time is delayed for 0.1S-1 second after the injection is finished, and the temperature of the product is about 600 ℃). The extrusion system is more than 3 times of the pressure of the injection system of the common die-casting machine, and can ensure enough continuous high pressure under the condition of not opening high speed so as to meet the requirement of forward extrusion at low speed and high pressure (the common die-casting machine does not open high speed injection pressure and does not have high pressure), the cavity in the forging die is filled with the deformed aluminum alloy at low speed and high pressure by extrusion, air in the extrusion process is discharged in enough time, air holes in the product can not exist, and the appearance density can not meet the requirement. The forging system carries out high-pressure forging to the product after the extrusion system is finished, and forging start-up time, dwell time and pressure can all be freely adjusted. The forging system requires the cooperation of a die having a forging function, and such a die is called a forging die. The forging system partially or wholly forges the product according to the die, and the forging depth of the product can be 0.5-1 mm. The forging is to make the density of the product reach the utmost and prevent the product from cracking and shrinkage during thermal shrinkage due to insufficient density.
Specifically, the frame 1 has a die mounting position, and the extruding system 40 and the forging system 30 are respectively disposed on two sides of the die mounting position. The frame 1 can also be provided with a mold locking device 2, and after the mold is installed in place, the mold locking device 2 can lock the mold and open and close the mold through a mold opening and closing mechanism. The die has a forging hole and a cavity. The forging hole may be a spot-pressed hole or an integral pressurized hole. The shape of the forward end of the forged rod 31 may match the shape of the forged bore.
Or, the forging system 30 is provided with two sets and respectively arranged on the same side or two sides of the die mounting position. Of course, more than two sets of forging systems 30 or forging rods 31 may be provided, and the portions requiring structural reinforcement may be forged separately when a large-sized part is formed. Each forging system 30 or forging bar 31 may be controlled simultaneously or independently.
Specifically, the forging drive part includes a forging cylinder 32, and the forging rod 31 is directly or indirectly connected to the forging cylinder 32.
Specifically, the forging cylinder 32 (in this embodiment, the cylinder for the forging system 30, not specifically referred to as a forging cylinder) has a forging piston 33 (in this embodiment, the piston for the forging system 30, not specifically referred to as a forging piston), the forging piston 33 is connected to a first driving component for driving the forging piston 33 to move forward, and the first driving component may be a driving device for driving the forging piston 33 to linearly drive, and may be a driving component such as a linear motor. The forging driving component further includes a forging air tank 34 (in the present embodiment, the air tank for the forging system 30 is referred to, and not specifically, the air tank for forging molding) for instantly filling the forging cylinder 32 with compressed air when the forging piston 33 moves forward to a set position.
Specifically, the forging cylinder 32 is connected to a forging oil passage plate (in this embodiment, the oil passage plate is used for the forging system 30, and not specifically, the forged oil passage plate), and the forging rod 31 is connected to the forging oil passage plate.
Specifically, the forging compressed gas tank 34 is a nitrogen gas tank, and the nitrogen gas tank may be provided with one or at least two. When the nitrogen tanks are provided with two (groups) or more than two (groups), each (group) of nitrogen tanks can synchronously work to ensure that the instantaneous pressure is larger. The nitrogen tanks (groups) can also work alternately, and when one nitrogen tank (group) is deflated, the rest nitrogen tanks can be inflated.
Specifically, the pressing system 40 includes a pressing rod 41 and a pressing driving member for driving the pressing rod 41, and the pressing driving member may be a pressing cylinder 42.
Specifically, the extrusion cylinder 42 has an extrusion piston 43, the extrusion piston 43 is connected with a second driving component for driving the extrusion piston 43 to move forward, and the extrusion driving component further comprises an injection compressed gas tank 44 for continuously filling the extrusion cylinder 42 with compressed gas when the extrusion piston 43 moves forward to a set position, so that the raw material can quickly fill the die. The injection compressed gas tank 44 is a nitrogen tank provided with one (group) or at least two (groups). Each nitrogen tank (group) can work synchronously, each nitrogen tank (group) can work alternatively, and when one nitrogen tank (group) deflates, the other nitrogen tanks can be inflated.
Specifically, the die is provided with a forging hole, the forging rod 31 is arranged at one end of the forging hole, and the other end of the forging hole is communicated with the cavity of the die. The forward end of the forge rod 31 can be aligned with or extend into the forge hole. The forging holes can be arranged in a plurality of numbers, and in specific application, one group or a plurality of groups of forging holes arranged oppositely can be arranged, so that each group of forging holes are oppositely forged corresponding to the forging rod 31, and the performance of the part is further improved. The forging hole may be provided with a protective cover through which the forging rod 31 passes and extends into the forging hole. The protective cover can be connected with a pressurized air pipe to prevent the raw materials from overflowing from the forging holes and the forging rods 31. The forging rod 31 and the forging hole may be provided with high temperature resistant sealing oil. The forging rod 31 can be connected with a distance sensor, and the forging amount can be accurately sensed.
According to the casting and forging integrated die-casting machine provided by the embodiment of the invention, after the extrusion system 40 fills the die cavity with the molten raw material, the forging rod 31 acts to extrude at least part of the prestored raw material to the die cavity of the die, so that the raw material in the die cavity is further densified, the generation of air hole and sand hole in the workpiece is avoided, and the workpiece is prevented from having defects such as cracks, cold shut, sink and the like.
In a specific application, the use method of the casting and forging integrated die-casting machine comprises the following steps:
fixing a die with a forging hole and a cavity on a frame 1 of the casting and forging all-in-one machine through a die locking device 2, and controlling the die to be closed;
an injection extrusion stem 41 of the extrusion system 40 injects molten material into the die cavity and the forging holes;
the forging stem 31 of the forging system 30 extrudes the pre-existing material of the forging hole at least partially into the cavity of the die.
Specifically, the ram cylinder 42 continuously drives the shot ram 41 at a set pressure to fill the die cavity and the forging holes with molten material.
Specifically, the second drive section drives the shot piston within the shot cylinder 42 forward to a set position, and the shot compression gas tank 44 maintains the shot cylinder 42 at a constant pressure while the shot ram 41 is caused to fill the mold cavity and the forging holes with molten material.
Specifically, the first driving part drives the forging piston 33 in the forging oil cylinder 32 to move forward to a set position, the forging compressed air tank 34 instantly fills compressed air into the forging oil cylinder 32, the forging oil cylinder 32 instantly pressurizes to enable the forging rod 31 to forge a workpiece in a cavity, and after the workpiece is formed and cooled, the mold is opened, and the workpiece can be ejected through the ejection system 5.
Specifically, the forging rod 31 acts on the preliminarily stored raw material in the forging hole at a pressure higher than that of the shot pressing rod 41.
Specifically, the extrusion rate at which the shot press stem 41 acts on the feedstock is less than or greater than the instantaneous rate at which the forging stem 31 acts on the feedstock within the forging hole.
Specifically, the pressure and dwell time of the forge system 30 are set prior to the start of operation of the forge system 30.
Specifically, the number of operations of the forging system 30, and the interval time, pressure and dwell time of each operation are set before the forging system 30 starts to operate, specifically, the next forging pressure may be greater than the forging pressure of the current forging, and specifically, the next dwell time may be greater than the dwell time of the current forging. The lattice structure in the workpiece can be gradually densified by gradually increasing the pressure, the mechanical property of the workpiece is better, the reliability of the product is high, and the high-strength application occasion can be met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an integrative die casting machine of casting and forging, includes the frame, the frame is provided with the mode locking device who is used for locking mould and is used for annotating the extrusion system of mould cavity with the melting raw materials, a serial communication port, the frame still is provided with and is used for prestoring raw materials and extrudees the forging and pressing system to mould cavity, the forging and pressing system is including forging the pole and being used for the drive forge the forging and pressing driver part of pole action.
2. The die casting and forging integrated machine as claimed in claim 1, wherein said frame has a die mounting location, and said extruding system and said forging system are disposed on both sides of said die mounting location.
3. The casting and forging integrated die-casting machine according to claim 1, wherein the frame has die mounting positions, and the forging system is provided in two sets and is respectively provided on both sides of the die mounting positions.
4. The cast-forged integrated die casting machine of claim 1, wherein said forging actuator comprises a forging cylinder, and said forging rod is connected to said forging cylinder.
5. The cast-forge integrated die-casting machine of claim 4, wherein said forging cylinder has a forging piston, said forging piston is connected with a first driving part for driving said forging piston to move forward, said forging driving part further comprises a forging compressed air tank for instantaneously filling said forging cylinder with compressed air when said forging piston moves forward to a set position.
6. The cast-forging integrated die-casting machine as claimed in claim 4, wherein the forging cylinder is connected with a forging oil passage plate, and the forging rod is connected with the forging oil passage plate.
7. The integrated die casting and forging machine according to claim 5, wherein the forging compressed gas tank is a nitrogen gas tank provided with one or at least two.
8. The die casting and forging integrated machine as claimed in any one of claims 1 to 7, wherein said extrusion system includes an extrusion rod and an extrusion cylinder for driving said extrusion rod.
9. The all-in-one die casting machine according to claim 8, wherein said squeeze cylinder has a squeeze piston to which a second drive means for driving said squeeze piston forward is connected, and said squeeze drive means further comprises a shot compressed gas tank for continuously charging said squeeze cylinder with compressed gas when said squeeze piston moves forward to a set position.
10. The die casting and forging integrated die casting machine as claimed in any one of claims 1 to 7, wherein said die is provided with a forging hole, said forging bar is provided at one end of said forging hole, and the other end of said forging hole communicates with a cavity of said die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185914.9A CN110814314A (en) | 2019-11-27 | 2019-11-27 | Casting and forging integrated die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911185914.9A CN110814314A (en) | 2019-11-27 | 2019-11-27 | Casting and forging integrated die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110814314A true CN110814314A (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911185914.9A Pending CN110814314A (en) | 2019-11-27 | 2019-11-27 | Casting and forging integrated die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110814314A (en) |
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2019
- 2019-11-27 CN CN201911185914.9A patent/CN110814314A/en active Pending
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Effective date of registration: 20210701 Address after: 518000 104, No.2 Weiling Road, egongling community, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Beigong Industrial Co.,Ltd. Address before: 518000 building 138, Xixiang Industrial Zone, shabeili village, Longdong community, Longgang street, Longgang District, Shenzhen City, Guangdong Province Applicant before: Shenzhen City Haoxiang Die-casting Co.,Ltd. |