CN102218520B - Light-alloy die-casting, filling, forging and compacting integrated forming device - Google Patents

Abstract

A light alloy die-casting filling forging compact integrated forming device and forming method. A forming device and a forming method, in particular to a light alloy die-casting filling forging compact integrated forming device and a forming method. The invention aims to solve the problem that the existing die-casting forming and forging forming devices are difficult to form parts with complex shapes and high mechanical performance requirements that meet the standards. The bottom plate of the movable mold, the backing plate of the movable mold, the movable template, the intermediate plate and the fixed template are connected in sequence, the die is embedded in the intermediate plate, the punch is inserted in the movable template, the working end surface of the punch is connected to the die The die cavity is formed between the working end faces of the die, and the forging components pass through the bottom plate of the movable die, the backing plate of the movable die and are connected with the end of the punch in turn; the forming steps of the present invention are: melting the light alloy cast blank into a liquid state and injecting into the mold cavity; the forging component forges the part that has filled the mold cavity. The invention is used for forming light alloy parts with complex shapes and high mechanical performance requirements.

Description

A Light Alloy Die Casting Filling Forging Compact Integrated Forming Device

technical field

The invention relates to a forming device, in particular to a compact integrated forming device for light alloy die-casting, filling and forging.

Background technique

The lightness of products is actually to use the low density of aluminum alloys and magnesium alloys to replace traditional materials. At present, aluminum alloys and magnesium alloys are mainly manufactured by casting or forging. Die-casting forming is to fill the mold cavity by pushing the liquid metal flow through the piston. Although the die-casting forming can realize the precise control of the shape of the part, it is difficult to control the performance of the part, and defects such as air holes, shrinkage cavities and shrinkage porosity often occur; Forging forming relies on the plastic deformation of solid metal to fill the die cavity. Although forging forming is easy to control the performance of the part, the shape of the part is greatly restricted. For some parts with complex shapes and high mechanical properties, although die-casting can easily form the parts, the mechanical properties are difficult to achieve; although forging can meet the requirements of mechanical properties, it is difficult to form the parts, so die-casting Both forming and forging are difficult to form such parts that meet the standard.

Contents of the invention

In order to solve the problem that the existing die-casting forming and forging forming devices and forming methods are difficult to form parts with complex shapes and high mechanical properties that meet the standards, the present invention further proposes a light alloy die-casting filling forging compact integrated forming device.

The technical solution adopted by the present invention to solve the above-mentioned problems is: the present invention comprises a movable die base plate, a movable die backing plate, a movable die plate, an intermediate plate, a fixed die plate, a forging assembly, an ejection assembly, an injection assembly, a die and a punch, The bottom plate of the movable mold, the backing plate of the movable mold, the movable template, the middle plate and the fixed template are connected sequentially from left to right, the concave mold is embedded in the middle plate, the punch is inserted in the movable template, and the convex mold The mold can move linearly along the inner wall of the movable template, and there is a forging gap between the boss on the outer surface of the punch and the boss on the inner wall of the movable template, and the working end surface of the punch and the working end surface of the die The mold cavity is formed between them, the injection assembly is fixedly connected with the outer end surface of the fixed plate, and the injection assembly communicates with the pouring hole at the end of the die, and the forging assembly passes through the bottom plate of the movable mold, the backing plate of the movable mold and the convex mold in turn. The ends of the dies are connected, the ejection assembly is inserted into the forging assembly, and the ejection assembly passes through the punch, and the ejection assembly can move linearly along the inner wall of the punch.

The steps of a light alloy die-casting filling forging compact integrated forming method described in the present invention are as follows:

Step 1. Melting the light alloy cast billet into a liquid state, and controlling the melting temperature at 660°C-730°C;

Step 2. Pour the melted liquid alloy into the injection cylinder, and inject the liquid light alloy poured into the injection cylinder into the mold cavity by using the injection push rod and the injection punch. Control at 2m/s-7m/s;

Step 3. Use the forging cylinder to push the forging rod to forge the parts that have filled the mold cavity, and the forging speed is controlled at 0.02m/s-0.05m/s;

Step 4. After the forging is completed, the ejector cylinder pushes the ejector pin to push the formed part out of the mold cavity.

The beneficial effects of the present invention are: the present invention can form parts with complex shapes and high requirements on mechanical properties, the microstructure of the formed parts of the present invention is dense and uniform, and the grain size is fine, the present invention is simple in structure, easy to operate, and reduces the manufacturing cost of the parts , and reduce energy consumption.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Detailed ways

Specific embodiment 1: As shown in Figure 1, a light alloy die-casting filling forging compact integrated forming device described in this embodiment includes a movable die base plate 1, a movable die backing plate 2, a movable die plate 3, an intermediate plate 4, and a fixed die plate 5. Forging assembly 6, ejection assembly 7, injection assembly 8, die 12 and punch 13, the movable die bottom plate 1, movable die backing plate 2, movable die plate 3, middle plate 4, and fixed die plate 5 are arranged from the left Connect to the right in turn, the die 12 is embedded in the middle plate 4, the punch 13 is inserted in the movable template 3, and the punch 13 can move linearly along the inner wall of the movable template 3, the punch 13 There is a forging gap L between the boss on the outer surface and the boss on the inner wall of the movable template 3, and a mold cavity is formed between the working end surface of the punch 13 and the working end surface of the die 12, and the pressing The injection assembly 8 is fixedly connected to the outer end surface of the fixed template 5, and the injection assembly 8 communicates with the pouring hole at the end of the die 12. The forging assembly 6 passes through the bottom plate of the movable mold 1, the backing plate 2 of the movable mold and the punch 13 in sequence. The ends are connected, the ejection assembly 7 is inserted into the forging assembly 6, and the ejection assembly 7 passes through the punch 13, and the ejection assembly 7 can move linearly along the inner wall of the punch 13. In this embodiment, the liquid light alloy material enters the mold cavity through the injection assembly 8. At this time, the parts in the mold cavity are in a solid-liquid state or just solidified. The forging assembly 6 pushes the punch 13 to perform dense forging on the parts, and finally The whole device starts to take parts by parting. When parting, first parting on the A-A parting surface and removing the aggregate of the pouring system, then parting on the main parting surface of B-B to expose the parts, and finally, the ejection component 7 will be formed Component ejected.

Specific embodiment two: As shown in Figure 1, the forging assembly 6 of a light alloy die-casting filling forging compact integrated forming device in this embodiment includes a forging rod 6-1 and a forging cylinder 6-2. The forging rod 6- 1 is connected to the forging cylinder 6-2, and the other end of the forging rod 6-1 is connected to the punch 13, and the forging cylinder 6-2 can push the forging rod 6-1 along the inner wall of the moving die backing plate 2 in a straight line move. Other components and connections are the same as those in the first embodiment.

Specific Embodiment Three: As shown in Figure 1, the ejector assembly 7 of a light alloy die-casting filling forging compact integrated forming device in this embodiment includes an ejector rod 7-1 and an ejector cylinder 7-2. One end of the rod 7-1 is connected with the ejector cylinder 7-2, the other end of the ejector rod 7-1 passes through the punch 13, and the ejector cylinder 7-2 can push the ejector rod 7-1 along the punch 13 The inner wall moves in a straight line. Other components and connections are the same as those in the first embodiment.

Embodiment 4: As shown in Figure 1, the injection assembly 8 of a light alloy die-casting filling forging compact integrated forming device in this embodiment includes an injection push rod 8-1, an injection punch 8-2 and The injection barrel 8-3, the injection punch 8-2 is fixedly connected with the injection push rod 8-1, and the injection punch 8-2 and the injection push rod 8-1 are both inserted in the injection inside the cylinder 8-3, and the injection push rod 8-1 can push the injection punch 8-2 to move linearly along the inner wall of the injection cylinder 8-3, and the casting of the injection cylinder 8-3 and the end of the die 12 The holes are connected. Other components and connections are the same as those in the first embodiment.

Fifth specific embodiment: As shown in Figure 1, a light alloy die-casting filling forging compact integrated forming device described in this embodiment also includes a first guide sleeve 9, a second guide sleeve 10 and a guide post 11, the first The guide sleeve 9 is inserted in the movable template 3, the second guide sleeve 10 is inserted in the middle plate 4, the first guide sleeve 9 communicates with the inner cavity of the second guide sleeve 10, and the guide post 11 passes through The fixed template 5 is sequentially inserted into the second guide sleeve 10 and the first guide sleeve 9 , and the guide post 11 can move linearly along the lumens of the first guide sleeve 9 and the second guide sleeve 10 . The other components and connections are the same as those in Embodiment 1, 2, 3 or 4.

Embodiment 6: As shown in FIG. 1 , the forging gap L of a light alloy die-casting, filling and forging compact integrated forming device described in this embodiment is controlled at 1mm-5mm. Other components and connections are the same as those in the first embodiment.

Embodiment 7: As shown in FIG. 1 , a method for forming a light alloy casting using the forming device described in Embodiment 1 has the following steps:

Step 1. Melting the light alloy cast billet into a liquid state, and controlling the melting temperature at 660°C-730°C;

Step 2: pour the melted liquid alloy into the injection cylinder 8-3, and use the injection push rod 8-1 and the injection punch 8-2 to pour the liquid alloy into the injection cylinder 8-3 The alloy is injected into the mold cavity, and the injection speed is controlled at 2m/s-7m/s;

Step 3. Use the forging cylinder 6-2 to push the forging rod 6-1 to forge the parts that have filled the mold cavity, and the forging speed is controlled at 0.02m/s-0.05m/s;

Step 4: After the forging is completed, the ejector cylinder 7-2 pushes the ejector rod 7-1 to push the formed part out of the mold cavity.

Claims (5)

1. closely knit integral forming device is forged in a light-alloy die-casting filling, it is characterized in that: described a kind of light-alloy die-casting filling is forged closely knit integral forming device and is comprised moving clamping plate (1), dynamic model backing plate (2), moving platen (3), intermediate plate (4), solid plate (5), forge assembly (6), ejection assembly (7), injection assembly (8), die (12) and punch (13), described moving clamping plate (1), dynamic model backing plate (2), moving platen (3), intermediate plate (4), solid plate (5) connects from left to right successively, described die (12) is inlaid in the intermediate plate (4), described punch (13) is inserted in the moving platen (3), and punch (13) can be along the inwall traveling priority of moving platen (3), leave between the boss on boss on described punch (13) lateral surface and moving platen (3) inwall and forge gap (L), form mold cavity between the working end end face of the working end end face of described punch (13) and die (12), described injection assembly (8) is fixedly connected with solid plate (5) outside end face, and injection assembly (8) is communicated with the plug hole of die (12) end, described forging assembly (6) passes moving clamping plate (1) successively, dynamic model backing plate (2) is connected with the end of punch (13), described ejection assembly (7) is inserted into and forges in the assembly (6), and ejection assembly (7) passes punch (13), described ejection assembly (7) can be along the inwall traveling priority of punch (13), forge assembly (6) and comprise that forging bar (6-1) is connected with forging cylinder (6-2) with an end that is connected the described forging bar of cylinder (6-2) (6-1), the other end of described forging bar (6-1) is connected with punch (13), and described forging cylinder (6-2) can promote to forge bar (6-1) along the inwall traveling priority of dynamic model backing plate (2).

2. closely knit integral forming device is forged in described a kind of light-alloy die-casting filling according to claim 1, it is characterized in that: described ejection assembly (7) comprises push rod (7-1) and liftout tank (7-2), one end of described push rod (7-1) is connected with liftout tank (7-2), the other end of described push rod (7-1) passes punch (13), and described liftout tank (7-2) can promote push rod (7-1) along the inwall traveling priority of punch (13).

3. closely knit integral forming device is forged in described a kind of light-alloy die-casting filling according to claim 1, it is characterized in that: described injection assembly (8) comprises injection push rod (8-1), injection punch head (8-2) and injection cylinder (8-3), described injection punch head (8-2) is fixedly connected with injection push rod (8-1), described injection punch head (8-2) and injection push rod (8-1) all are inserted in the injection cylinder (8-3), and injection push rod (8-1) can promote injection punch head (8-2) along the inwall traveling priority of injection cylinder (8-3), and described injection cylinder (8-3) is communicated with the plug hole of die (12) end.

4. according to claim 1, closely knit integral forming device is forged in 2 or 3 described a kind of light-alloy die-casting fillings, it is characterized in that: described a kind of light-alloy die-casting filling is forged closely knit integral forming device and is also comprised the first guide pin bushing (9), the second guide pin bushing (10) and guide pillar (11), described the first guide pin bushing (9) is inserted in the moving platen (3), described the second guide pin bushing (10) is inserted in the intermediate plate (4), described the first guide pin bushing (9) is communicated with the inner chamber of the second guide pin bushing (10), described guide pillar (11) passes solid plate (5) and is inserted into successively the second guide pin bushing (10), in the first guide pin bushing (9), and guide pillar (11) can be along the inner chamber traveling priority of the first guide pin bushing (9) and the second guide pin bushing (10).

5. closely knit integral forming device is forged in described a kind of light-alloy die-casting filling according to claim 4, it is characterized in that: described forging gap (L) is controlled at 1mm-5mm.

Images