Forging and pressing forming device for dissimilar metal composite material

Abstract

The utility model discloses a dissimilar metal composite material forging and pressing forming device which comprises a lower die and an upper die, the lower die comprises a lower base plate, a lower die base and a C-shaped backrest plate, and a containing groove for containing blanks is formed in the inner side of the C-shaped backrest plate; the upper mold comprises an upper pressing plate and an upper mold base, the upper mold base is arranged on the lower side of the upper pressing plate, forming plates are arranged on the sides, close to each other, of the lower mold and the upper mold, and the forming plates are located on the inner side of the C-shaped backrest plate; the end limiting block is arranged on the upper end face of the lower die base and slides relative to the lower die base. The end limiting blocks are controlled to move close to or away from the C-shaped backrest plate, and the end limiting blocks are used for abutting against the two ends of the blank and limiting the blank. The machining gap between the C-shaped backrest plate and the forming plate is used for forging and pressing the metal material on the inner side crossing the machining gap, so that stepped surfaces can be efficiently formed on the upper side surface and the lower side surface of a blank at the same time, and compared with milling machining, the device can greatly improve the machining speed and can keep certain precision.

Description

Technical Field

[0001] The utility model relates to the field of metal profile forming devices, in particular to a forging forming device for heterogeneous metal composite materials. Background Art

[0002] Layered metal composite materials are made by combining the composite metal with the base metal through explosive compounding, rolling compounding or other preparation technologies, and the products have typical bonding interface characteristics. On the one hand, this new material can save rare metals and precious metals and reduce the manufacturing cost of downstream equipment; on the other hand, it can improve the thermal expansion, strength, wear resistance and other properties of single metal materials, solve technical problems that single metals cannot solve, and meet the requirements for material performance in special environments such as strong corrosion, high temperature and high pressure.

[0003] Titanium-aluminum composite series: Titanium is a new type of metal with many excellent properties such as low density, high strength, corrosion resistance and good high and low temperature performance, but it is expensive. Titanium-aluminum composite materials can not only significantly reduce the cost of related equipment. The inner layer of aluminum improves the overall processability and effectively reduces processing time and cost.

[0004] 3D arc profiles have become the mainstream in the mobile phone industry, and titanium-aluminum composite materials have many applications in the field of mobile phone profiles, such as Figure 1 As shown in FIG. 1 , the workpiece structure to be processed is a C-shaped blank, the inner material of which is aluminum and the outer material is titanium. The target structure of the workpiece is as follows: Figure 2 As shown, the upper and lower sides of the inner metal aluminum of the product are processed to form stepped surfaces of different heights. In the prior art, a CNC machining center is usually used to mill the workpiece. Although this processing method is effective, the processing speed is slow. In view of the above, it is necessary to propose a forging forming device for heterogeneous metal composite materials to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and provide a forging and forming device for heterogeneous metal composite materials.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a forging and forming device of heterogeneous metal composite materials, comprising a lower die and an upper die, the lower die comprising a lower pad, a lower die seat, and a C-shaped backrest plate, the lower die seat is arranged above the lower pad, and a C-shaped backrest plate is arranged on the upper side of the lower die seat, and a receiving groove for placing the blank is formed on the inner side of the C-shaped backrest plate; the upper die comprises an upper pressure plate and an upper die seat, and an upper die seat is arranged on the lower side of the upper pressure plate, and a forming plate is arranged on the side where the lower die and the upper die are close to each other, and the forming plate is located on the inner side of the C-shaped backrest plate; it also includes an end limit block, the end limit block is arranged on the upper end surface of the lower die seat and slides relative to it; the end limit block is controlled to move close to or away from the C-shaped backrest plate, and the end limit block is used to tighten the two ends of the blank and limit it.

[0007] Furthermore, the lower pad and the lower die seat are both in the shape of rectangular plates, the lower pad is provided with a recessed groove matching the outer peripheral shape of the forming plate, the lower die seat is provided with a through hole for the forming plate to pass through, the shape of the through hole matches the outer peripheral shape of the forming plate, and the forming surface of the forming plate is convexly arranged relative to the lower die seat.

[0008] Furthermore, a first countersunk hole is provided through the forming plate, and a first bolt hole corresponding to the position of the countersunk hole is provided in the countersunk groove; the forming plate is fixed to the lower pad by bolts passing through the first bolt holes.

[0009] Furthermore, the C-shaped backrest plate is provided with a plurality of second countersunk holes, and the lower pad plate and the lower die base are provided with second bolt holes corresponding to the positions of the second countersunk holes, and the C-shaped backrest plate, the lower die base and the lower pad are overlapped and fixed in sequence by bolts passing through the second countersunk holes and the second bolt holes.

[0010] Furthermore, the lower end surface of the upper pressure plate is provided with a countersunk groove that matches the outer peripheral shape of the forming plate, and the upper mold base is provided with a through hole for the forming plate to pass through, and the shape of the through hole matches the outer peripheral shape of the forming plate, and the forming surface of the forming plate is convexly arranged relative to the upper mold base; the four corners of the upper mold base are provided with third countersunk holes, and the upper pressure plate is provided with third bolt holes corresponding to the positions of the third countersunk holes.

[0011] Furthermore, the three side surfaces of the forming plate close to the C-shaped backrest plate have equal processing gaps with the C-shaped backrest plate, and the two end limit blocks move close to each other with one end surface pressed against the two opposite side surfaces of the forming plate.

[0012] Furthermore, the molding surface has a first step, a second step, and a third step on both sides in a mirror-like manner; a concave surface is formed between the two third steps; and molding blocks are respectively provided on the first steps on both sides.

[0013] Furthermore, the molding surfaces of the two molding plates arranged in the upper mold and the lower mold are identical in shape and are arranged in a mirror image.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the utility model dissimilar metal composite material forging and forming device utilizes the processing gap between the C-shaped backrest plate and the forming plate to perform forging processing on the inner metal material crossing the processing gap, thereby efficiently forming step surfaces on the upper and lower sides of the blank at the same time. Compared with milling processing, this device can greatly improve the processing speed and maintain a certain accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure diagram of the processed heterogeneous metal composite material blank;

[0016] Figure 2 It is the structural diagram of the heterogeneous metal composite material product;

[0017] Figure 3 Axonometric view of a forging and forming device for a heterogeneous metal composite material according to the utility model Figure 1 ;

[0018] Figure 4 Axonometric view of a forging and forming device for a heterogeneous metal composite material according to the utility model Figure 2 ;

[0019] Figure 5 It is a top view of the lower mold in the utility model;

[0020] Figure 6 This is an exploded view of a forging and forming device for a heterogeneous metal composite material of the utility model;

[0021] Figure 7 This is the axonometric view of the formed board;

[0022] In the figure: 1. lower mold; 2. upper mold; 3. lower pad; 4. lower mold base; 5. C-shaped backrest plate; 6. accommodating groove; 7. upper pressure plate; 8. upper mold base; 9. forming plate; 10. end limit block; 11. blank; 12. product; 13. stepped surface; 14. countersunk groove; 15. through hole; 16. forming surface; 17. first countersunk hole; 18. first bolt hole; 19. second countersunk hole; 20. second bolt hole; 21. third countersunk hole; 22. third bolt hole; 23. first step; 24. second step; 25. third step; 26. concave surface; 27. forming block. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] In actual use, the processed blank is Figure 1 As shown, its C-shaped structure is formed by pre-bending. The blank 11 has two ends. In the subsequent forging process, the end stopper 10 is squeezed at the end to assist in the stop. The inside of the blank 11 is made of metal aluminum and the outside is made of metal titanium. The two materials are not limited in actual use. This embodiment takes the titanium-aluminum composite material as an example. The aluminum material on the inside has good plastic deformation performance, so that the composite material has good formability. Figure 2 As shown, the processed product 12 is forged at the inner aluminum material to form a multi-step shape.

[0025] A forging and forming device for heterogeneous metal composite materials includes a lower die 1 and an upper die 2. Similar to the forging equipment in the prior art, when the upper die 2 and the lower die 1 are closed, the internal fixed blank 11 can be forged and formed; for this blank 11, the processing difficulty lies in that the metal titanium on the outside does not need to be forged and deformed, and only the aluminum material on the inside needs to be forged to form a predetermined shape.

[0026] The lower mold 1 includes a lower pad 3, a lower mold base 4, and a C-shaped backrest plate 5. The lower mold base 4 is arranged above the lower pad 3, and the C-shaped backrest plate 5 is arranged on the upper side of the lower mold base 4. The inner side of the C-shaped backrest plate 5 forms a receiving groove 6 for placing the blank 11; the upper mold 2 includes an upper pressure plate 7 and an upper mold base 8. The lower side of the upper pressure plate 7 is provided with an upper mold base 8, and the lower mold 1 and the upper mold 2 are provided with a forming plate 9 on the side where they are close to each other.

[0027] Specifically, Figure 3-7 As shown, the C-shaped backrest plate 5, the lower die base 4, and the lower pad 3 need to be overlapped and fixed in sequence. The lower pad 3 and the lower die base 4 are both rectangular plates. The lower pad 3 is provided with a sink 14 that matches the outer peripheral shape of the forming plate 9. The lower die base 4 is provided with a through hole 15 for the forming plate 9 to pass through. The shape of the through hole 15 matches the outer peripheral shape of the forming plate 9. The forming surface 16 of the forming plate 9 is raised relative to the lower die base 4. After stacking in order, the interlayer plate is fixed by bolts to form a whole. Specifically, a first countersunk hole 17 is provided through the forming plate 9, and a first bolt hole 18 corresponding to the position of the countersunk hole is provided in the sink 14; the forming plate 9 is fixed to the lower pad 3 by bolts passing through the first bolt hole 18. In actual use, two forming plates 9 are provided. The lower forming plate 9 is passed through the through hole 15 and placed into the sink 14 , and then a bolt is passed through the first countersunk hole 17 and screwed into the first bolt hole 18 to complete the fixing of the lower forming plate 9 .

[0028] like Figure 6As shown, the C-shaped backrest plate 5 is provided with a plurality of second countersunk holes 19, and the lower pad plate 3 and the lower die seat 4 are provided with second bolt holes 20 corresponding to the positions of the second countersunk holes 19. The C-shaped backrest plate 5, the lower die seat 4, and the lower pad plate 3 are overlapped and fixed in sequence by passing bolts through the second countersunk holes and the second bolt holes 20. When fixing, three long bolts are passed through the second countersunk holes 19 from top to bottom, then through the second bolt holes 20 on the lower die seat 4, and then through the second bolt holes 20 of the lower pad plate 3, and then screwed on the processing platform (not shown in the figure). The three-layer plate of the lower mold 1 can be firmly pressed and fixed by the long bolts.

[0029] Similarly, the lower end face of the upper pressing plate 7 is provided with a recessed groove 14 which matches the outer peripheral shape of the forming plate 9, and the upper die seat 8 is provided with a through hole 15 for the forming plate 9 to pass through, and the shape of the through hole 15 matches the outer peripheral shape of the forming plate 9, and the forming surface 16 of the forming plate 9 is convexly arranged relative to the upper die seat 8; the upper forming plate 9 can be fixed by passing a bolt through the first countersunk hole 17 of the upper forming plate 9 and screwing it into the first bolt hole 18 in the recessed groove 14 of the upper pressing plate 7. The structure of the upper pressing plate 7 is similar to that of the lower pad 3; the difference is that the four corners of the upper die seat 8 are provided with a third countersunk hole 21, and the upper pressing plate 7 is provided with a third bolt hole 22 corresponding to the position of the third countersunk hole 21; in actual use, a bolt is used to pass through the third countersunk hole 21 from bottom to top and screw it into the third bolt hole 22, thereby connecting the upper die seat 8 and the upper pressing plate 7 to form a whole; thereby, during the forging operation, the upper die 2 can be moved up and down as a whole for forging.

[0030] like Figure 5 As shown, the forming plate 9 is located on the inner side of the C-shaped backrest plate 5, and the forming plate 9 has processing gaps with equal spacing between the three side surfaces close to the C-shaped backrest plate 5 and the C-shaped backrest plate 5. Since the metal titanium on the outer side does not need to be processed, the processing gap is used to accommodate the metal titanium material on the outer side. During the downward forging process of the upper mold 2, the metal titanium on the outer side is pressed into the processing gap, thereby avoiding the metal titanium material from being compressed and deformed, while the metal aluminum on the inner side can be forged and formed by the forming plate 9; thereby solving the problem of not processing the metal titanium layer and only forging the inner aluminum material.

[0031] In actual use, in order to prevent the outer titanium material from being forged due to the displacement of the blank 11 during the forging process, an end stopper 10 is also included. The end stopper 10 is arranged on the upper end surface of the lower die seat 4 and slides relative to it; the end stopper 10 is controlled to move closer to or away from the C-shaped backrest plate 5, and the end stopper 10 is used to press against the two ends of the blank 11 and limit the position. The two end stoppers 10 move closer to each other with one end surface pressed against the opposite sides of the forming plate 9. In actual use, after the blank 11 is placed in the accommodating groove 6, the end limit block 10 is preferentially driven to move toward the two ends of the blank 11, so that the outer metal titanium layer of the blank 11 is squeezed against the inner side of the C-shaped backrest plate 5 so that the aluminum material on the inner side of the blank 11 to be processed is aligned with the forming surface 16, and then the upper mold 2 is pressed down to close the mold. The forming surfaces 16 of the two forming plates 9 arranged in the upper mold 2 and the lower mold 1 are the same in shape and are mirror-imaged; thereby, the upper and lower end surfaces of the blank 11 are forged and formed at the same time.

[0032] Specifically, Figure 7 As shown, the two sides of the forming surface 16 are mirror-imaged with a first step 23, a second step 24, and a third step 25; a concave surface 26 is provided between the two third steps 25; forming blocks 27 are provided on the first steps 23 on both sides; during forging, the first step 23, the second step 24, the third step 25, the concave surface 26 and the edges of the forming blocks 27 simultaneously extrude the inner aluminum material of the blank 11, and the aluminum material is extruded and deformed by utilizing its excellent plastic deformation characteristics, while the excess aluminum material bulges into the gap between the two forming surfaces 16. After the processing is completed, the bulged excess part needs to be cut off to form the blank 11 as shown. Figure 2 The product piece 12 is shown.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A forging and forming device for a heterogeneous metal composite material, comprising a lower die (1) and an upper die (2), characterized in that: The lower mold (1) comprises a lower pad (3), a lower mold base (4), and a C-shaped backrest plate (5); the lower mold base (4) is arranged above the lower pad (3); the C-shaped backrest plate (5) is arranged on the upper side of the lower mold base (4); a receiving groove (6) for placing the blank (11) is formed on the inner side of the C-shaped backrest plate (5); the upper mold (2) comprises an upper pressing plate (7) and an upper mold base (8); the upper mold base (8) is arranged on the lower side of the upper pressing plate (7); The tool (1) and the upper mold (2) are both provided with a forming plate (9) on the side close to each other, and the forming plate (9) is located on the inner side of the C-shaped backrest plate (5); and also include an end stop block (10), the end stop block (10) is arranged on the upper end surface of the lower mold base (4) and slides relative to it; the end stop block (10) is controlled to move closer to or away from the C-shaped backrest plate (5), and the end stop block (10) is used to press against the two ends of the blank (11) and limit the position.

2. The forging and forming device of a heterogeneous metal composite material according to claim 1 is characterized in that: The lower pad (3) and the lower die seat (4) are both in the shape of rectangular plates. The lower pad (3) is provided with a recessed groove (14) matching the outer peripheral shape of the forming plate (9). The lower die seat (4) is provided with a through hole (15) for the forming plate (9) to pass through. The shape of the through hole (15) matches the outer peripheral shape of the forming plate (9). The forming surface (16) of the forming plate (9) is arranged to be raised relative to the lower die seat (4).

3. The forging and forming device of a heterogeneous metal composite material according to claim 2 is characterized in that: A first countersunk hole (17) is provided through the forming plate (9), and a first bolt hole (18) corresponding to the position of the countersunk hole is provided in the sink groove (14); the forming plate (9) is fixed to the lower pad (3) by means of bolts passing through the first bolt holes (18).

4. The forging and forming device of a heterogeneous metal composite material according to claim 2, characterized in that: The C-shaped backrest plate (5) is provided with a plurality of second countersunk holes (19), and the lower pad plate (3) and the lower die seat (4) are both provided with second bolt holes (20) corresponding to the positions of the second countersunk holes (19), and the C-shaped backrest plate (5), the lower die seat (4) and the lower pad plate (3) are overlapped and fixed in sequence by passing bolts through the second countersunk holes and the second bolt holes (20).

5. The forging and forming device of a heterogeneous metal composite material according to claim 1, characterized in that: The lower end surface of the upper pressing plate (7) is provided with a recessed groove (14) matching the outer peripheral shape of the forming plate (9); the upper die seat (8) is provided with a through hole (15) for the forming plate (9) to pass through; the shape of the through hole (15) matches the outer peripheral shape of the forming plate (9); the forming surface (16) of the forming plate (9) is arranged to be raised relative to the upper die seat (8); the four corners of the upper die seat (8) are provided with third countersunk holes (21); the upper pressing plate (7) is provided with third bolt holes (22) corresponding to the positions of the third countersunk holes (21).

6. The forging and forming device of heterogeneous metal composite materials according to claim 2 is characterized in that: The three side surfaces of the forming plate (9) close to the C-shaped backrest plate (5) have equal processing gaps with the C-shaped backrest plate (5), and the two end limit blocks (10) move close to each other with one end surface pressed against the two opposite side surfaces of the forming plate (9).

7. The forging and forming device of heterogeneous metal composite materials according to claim 2 is characterized in that: The two sides of the molding surface (16) are provided with a first step (23), a second step (24), and a third step (25) in a mirror-like manner; a concave surface (26) is provided between the two third steps (25); and molding blocks (27) are respectively provided on the first steps (23) on both sides.

8. The forging and forming device of heterogeneous metal composite materials according to claim 7 is characterized in that: The molding surfaces (16) of the two molding plates (9) arranged in the upper mold (2) and the lower mold (1) are identical in shape and are arranged in a mirror image.

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