CN102218520A

CN102218520A - Light-alloy die-casting, filling, forging and compacting integrated forming device and forming method

Info

Publication number: CN102218520A
Application number: CN2011101385991A
Authority: CN
Inventors: 姜巨福; 王迎; 程远胜; 杜之明
Original assignee: Harbin Institute of Technology Shenzhen
Current assignee: Harbin Institute of Technology Shenzhen
Priority date: 2011-05-26
Filing date: 2011-05-26
Publication date: 2011-10-19
Anticipated expiration: 2031-05-26
Also published as: CN102218520B

Abstract

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 properties that meet the standards. 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 in sequence, the concave mold is embedded in the middle plate, the punch is inserted in the movable template, and the working end surface of the punch is connected to the concave mold. 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 it 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

Closely knit integral forming device and manufacturing process are forged in a kind of light-alloy die casting filling

Technical field

The present invention relates to a kind of building mortion and manufacturing process, be specifically related to a kind of light-alloy die casting filling and forge closely knit integral forming device and manufacturing process.

Background technology

The lighting of product is actually the low density characteristics of utilizing aluminium alloy, magnesium alloy and substitutes traditional material, and at present, aluminium alloy, magnesium alloy mainly adopt the method manufacturing of cast form or forging and molding.Casting forming is to promote liquid metal by piston to flow and finish the impression filling, though casting forming can be realized the accurate control of product shape, is difficult to control for the performance of product, and produces defectives such as pore, shrinkage cavity, shrinkage porosite through regular meeting; Forging and molding is to realize the impression filling by the solid metallic plastic deformation, though forging and molding is easy to control the performance of product, the shape of product is very restricted.The parts complex-shaped for some and mechanical property requirements is high, these parts though casting forming can be shaped easily, mechanical property is difficult to reach; Though forging and molding can satisfy the requirement of mechanical property, these parts that are difficult to be shaped, so casting forming and forging and molding standard compliant this type of part that all is difficult to be shaped.

Summary of the invention

The problem of the present invention's standard compliant complex-shaped and part that mechanical property requirements is high for the device that solves existing casting forming and forging and molding and manufacturing process are difficult to be shaped, and then propose a kind of light-alloy die casting filling and forge closely knit integral forming device and manufacturing process.

The present invention addresses the above problem the technical scheme of taking to be: the present invention includes moving clamping plate, the dynamic model backing plate, moving platen, intermediate plate, solid plate, forge assembly, ejection assembly, the injection assembly, die and punch, described moving clamping plate, the dynamic model backing plate, moving platen, intermediate plate, solid plate connects from left to right successively, described die is inlaid in the intermediate plate, described punch is inserted in the moving platen, and punch can move along the inwall straight line of moving platen, leave between boss on the described punch lateral surface and the boss on the moving platen inwall and forge the gap, form mold cavity between the working end end face of described punch and the working end end face of die, described injection assembly is fixedlyed connected with solid plate outside end face, and the injection assembly is communicated with the plug hole of die end, described forging assembly passes moving clamping plate successively, the dynamic model backing plate is connected with the end of punch, described ejection assembly is inserted into and forges in the assembly, and ejection assembly passes punch, and described ejection assembly can move along the inwall straight line of punch.

The step that closely knit integral forming method is forged in a kind of light-alloy die casting filling of the present invention is as follows:

Step 1, light-alloy as cast condition blank is fused into liquid state, fusion temperature is controlled at 660 ℃-730 ℃;

Step 2, will melt good liquid alloy and pour in the injection tube, and the liquid light-alloy injection that utilizes injection push rod and injection punch head will pour in the injection tube goes in the mold cavity, injection speed is controlled at 2m/s-7m/s;

Step 3, utilization forging cylinder promotion forging the pole pair part of filling mold cavity forge, and forging speed is controlled at 0.02m/s-0.05m/s;

After step 4, forging finished, liftout tank promoted push rod the part of forming is released mold cavity.

The invention has the beneficial effects as follows: the present invention's energy shaping form complexity and the high part of mechanical property requirements, the microstructure of formation of parts of the present invention is evenly fine and close, and crystallite dimension is tiny, the present invention is simple in structure, easy to operate, reduce the manufacturing cost of part, and reduced energy consumption.

Description of drawings

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

The specific embodiment

The specific embodiment one: as shown in Figure 1, the described a kind of light-alloy die casting filling of present embodiment 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 move along the inwall straight line of moving platen 3, leave the forging gap L between boss on described punch 13 lateral surfaces and the boss on moving platen 3 inwalls, form mold cavity between the working end end face of described punch 13 and the working end end face of die 12, described injection assembly 8 is fixedlyed connected with solid plate 5 outside end faces, and injection assembly 8 is communicated with the plug hole of die 12 ends, 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, and described ejection assembly 7 can move along the inwall straight line of punch 13.Liquid light alloy material enters in the mold cavity by injection assembly 8 in the present embodiment, this moment, the part in the mold cavity was in mushy stage or curdled appearance just, forge 13 pairs of parts of assembly 6 promotion punch and carry out closely knit forging, last whole device begins the somatotype pickup, during somatotype, at first coagulate the material removal at A-A die joint somatotype and with running gate system, B-B master's die joint somatotype exposes part then, at last, ejection assembly 7 ejects the assembly of forming.

The specific embodiment two: as shown in Figure 1, the forging assembly 6 that closely knit integral forming device is forged in the described a kind of light-alloy die casting filling of present embodiment comprises that forging bar 6-1 is connected with forging cylinder 6-2 with an end that forges 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 and move along the inwall straight line of dynamic model backing plate 2.Other composition and annexation are identical with the specific embodiment one.

The specific embodiment three: as shown in Figure 1, the ejection assembly 7 that closely knit integral forming device is forged in the described a kind of light-alloy die casting filling of present embodiment comprises push rod 7-1 and liftout tank 7-2, the 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 and move along the inwall straight line of punch 13.Other composition and annexation are identical with the specific embodiment one.

The specific embodiment four: as shown in Figure 1, the injection assembly 8 that closely knit integral forming device is forged in the described a kind of light-alloy die casting filling of present embodiment comprises injection push rod 8-1, injection punch head 8-2 and injection tube 8-3, described injection punch head 8-2 is fixedlyed 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 tube 8-3, and injection push rod 8-1 can promote injection punch head 8-2 and move along the inwall straight line of injection tube 8-3, and described injection tube 8-3 is communicated with the plug hole of die 12 ends.Other composition and annexation are identical with the specific embodiment one.

The specific embodiment five: as shown in Figure 1, the described a kind of light-alloy die casting filling of present embodiment is forged closely knit integral forming device and is also comprised first guide pin bushing 9, second guide pin bushing 10 and guide pillar 11, described first guide pin bushing 9 is inserted in the moving platen 3, described second guide pin bushing 10 is inserted in the intermediate plate 4, described first guide pin bushing 9 is communicated with the inner chamber of second guide pin bushing 10, described guide pillar 11 passes solid plate 5 and is inserted into successively in second guide pin bushing 10, first guide pin bushing 9, and guide pillar 11 can move along the inner chamber straight line of first guide pin bushing 9 and second guide pin bushing 10.Other composition and annexation are identical with the specific embodiment one, two, three or four.

The specific embodiment six: as shown in Figure 1, the forging gap L that closely knit integral forming device is forged in the described a kind of light-alloy die casting filling of present embodiment is controlled at 1mm-5mm.Other composition and annexation are identical with the specific embodiment one.

The specific embodiment seven: as shown in Figure 1, a kind of step of the method for utilizing the specific embodiment one described building mortion shaping light alloy casting is as follows:

Step 2, will melt good liquid alloy and pour in the injection tube 8-3, and the liquid light-alloy injection that utilizes injection push rod 8-1 and injection punch head 8-2 will pour in the injection tube 8-3 goes in the mold cavity, injection speed is controlled at 2m/s-7m/s;

Step 3, utilize to forge cylinder 6-2 and promote to forge bar 6-1 the part of filling mold cavity is forged, forging speed is controlled at 0.02m/s-0.05m/s;

After step 4, forging finished, liftout tank 7-2 promoted push rod 7-1 the part of forming is released mold cavity.

Claims

1. A light alloy die-casting, filling and forging compact integrated forming device, characterized in that: said light alloy die-casting, filling and forging dense integrated forming device includes a movable mold bottom plate (1), a movable mold backing plate (2), a movable mold backing plate (2), a template (3), intermediate plate (4), fixed template (5), forging assembly (6), ejector assembly (7), injection assembly (8), die (12) and punch (13), all The bottom plate of the movable mold (1), the backing plate of the movable mold (2), the movable template (3), the middle plate (4), and the fixed template (5) are sequentially connected from left to right, and the concave mold (12) is embedded in the 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), and the outer wall of the punch (13) There is a forging gap (L) between the bosses on the side and the bosses on the inner wall of the movable template (3), forming a mold cavity, the injection assembly (8) is fixedly connected to the outer end surface of the fixed plate (5), and the injection assembly (8) communicates with the pouring hole at the end of the die (12), and the forging assembly (6) in turn Pass through the bottom plate of the movable mold (1), the backing plate of the movable mold (2) and connect with the end of the punch (13), the ejection assembly (7) is inserted into the forging assembly (6), and the ejection assembly (7 ) through the punch (13), and the ejection assembly (7) can move linearly along the inner wall of the punch (13).

2. A light alloy die-casting, filling and forging compact integrated forming device according to claim 1, characterized in that: the forging assembly (6) includes a forging rod (6-1) and a forging cylinder (6-2). One end of the forging rod (6-1) is connected with the forging cylinder (6-2), the other end of the forging rod (6-1) is connected with the punch (13), and the forging cylinder (6-2) can push The forging rod (6-1) moves linearly along the inner wall of the movable mold backing plate (2).

3. A light alloy die-casting filling forging compact integrated forming device according to claim 1, characterized in that: the ejector assembly (7) includes an ejector rod (7-1) and an ejector cylinder (7-2) , one end of the ejector 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) The push rod (7-1) can be pushed to move linearly along the inner wall of the punch (13).

4. A light alloy die-casting filling forging compact integrated forming device according to claim 1, characterized in that: the injection assembly (8) 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), the injection punch (8-2) and the injection The injection push rods (8-1) are all inserted into the injection barrel (8-3), and the injection push rods (8-1) can push the injection punch (8-2) along the injection barrel (8-3). 3) the inner wall moves linearly, and the injection cylinder (8-3) communicates with the pouring hole at the end of the die (12).

5. A light alloy die-casting, filling and forging dense integrated forming device according to claim 1, 2, 3 or 4, characterized in that: said light alloy die-casting, filling and forging dense integrated forming device also includes a first guide sleeve (9), second guide sleeve (10) and guide post (11), the first guide sleeve (9) is inserted in the movable template (3), and the second guide sleeve (10) is inserted in 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) and is sequentially inserted into the second guide sleeve. The sleeve (10), the first guide sleeve (9), and the guide post (11) can move linearly along the inner cavities of the first guide sleeve (9) and the second guide sleeve (10).

6. A light alloy die-casting filling forging compact integrated forming device according to claim 1, characterized in that: the forging gap (L) is controlled within 1mm-5mm.

7. A method for forming light alloy castings using the forming device according to claim 1, characterized in that: the steps of the method 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 (8-3), and use the injection push rod (8-1) and the injection punch (8-2) to pour the molten alloy into the injection cylinder (8-3). The liquid light alloy in 8-3) 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 pin (7-1) to push the formed part out of the mold cavity.