CN220532871U - Multidirectional die forging forming die for deep-cylinder type forge piece - Google Patents

Abstract

The utility model provides a multidirectional die forging forming die for a deep-cylinder forging piece, which comprises an upper die holder, a lower die holder, an upper pressing block, a lower pressing block and an upper die core, wherein the lower die holder and the lower pressing block are used for fixing the lower die core together, a lower jacking block is arranged at the bottom of the lower die core, the upper die holder and the upper pressing block are used for fixing the upper die core together, the lower part of the upper die core is connected with an upper punch, the lower part of the upper punch stretches into the lower die core to press a blank, an upper top plate is arranged above the upper die core, the upper top plate is connected with an upper jacking block, and the other end of the upper jacking block is in sliding connection with the upper part of the upper punch. Compared with the prior art, the forming method of the multidirectional die forging forming die for the deep-cylinder forging reduces forming force, the upper ejector block is arranged on the die, after press forming, the upper punch is separated from a formed blank by the upper ejector block, the operation is simple and convenient, the final forming effect is ensured, and meanwhile, the demoulding separation of the forging on a press is realized.

Description

Multidirectional die forging forming die for deep-cylinder type forge piece

Technical Field

The utility model relates to the technical field of multidirectional die forging forming, in particular to a multidirectional die forging forming die for a deep-cylinder forging piece.

Background

The multi-directional die forging is a precision forging technology for performing split die forging on a multi-directional die forging hydraulic press, and the technology is used for forming a forging piece with a complex structural shape, and the formed forging piece has accurate size and no flash. The forging is formed in a three-dimensional hydrostatic stress state and is easy to bond with an upper die. When forming deep-cylinder forgings, in order to reduce forming force, save raw materials and ensure final forming effect, an upper punch is usually adopted to punch and form an end surface, and meanwhile, the thickness of a connecting skin and the draft angle of an inner hole are reduced, so that the length of the upper punch is increased, the draft angle is small, the demoulding difficulty is caused, the high-temperature forgings are contacted with a die for a long time, the working temperature of the die is too high, the surface layer of the die is tempered, and the service life of the die is reduced.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the multidirectional die forging forming die for the deep-cylinder forging piece, which reduces forming force and realizes automatic separation of an upper punch and the forging piece.

In order to achieve the technical purpose, the utility model adopts the following scheme:

the utility model provides a multidirectional die forging forming die of a deep-cylinder forging piece, which comprises an upper die holder, a lower die holder, an upper pressing block, a lower pressing block, an upper die core and a lower die core, wherein the lower die holder and the lower pressing block are used for fixing the lower die core together, and a lower jacking block is arranged at the bottom of the lower die core; the upper die holder and the upper pressing block are together fixed with an upper die core, the lower part of the upper die core is connected with an upper punch, the lower part of the upper punch stretches into the lower die core to press blanks, an upper top plate is arranged above the upper die core and is connected with an upper top block, and the lower part of the upper top block is in sliding connection with the upper part of the upper punch.

Further, the upper punch is of a T-shaped structure, a groove is formed in the side wall of the upper portion of the upper punch, the upper ejector block comprises a round rod end and a sector block, the round rod end is connected with the upper top plate through a linking bolt, and the sector block is matched and embedded in the groove of the upper punch and moves up and down in the groove.

Further, a convex hole is formed in the center of the upper die holder, the upper top plate is arranged in the upper open hole and moves up and down in the open hole, and the upper die core is arranged in the lower open hole of the upper die holder.

Compared with the prior art, the utility model has the beneficial effects that: the utility model utilizes the forming method of the multidirectional die forging forming die of the deep-cylinder forging piece, reduces the forming force, sets the upper ejector block on the die, and after the pressing forming, the upper punch is separated from the formed blank by the upper ejector block, so that the operation is simple and convenient, the final forming effect is ensured, and the demoulding separation of the forging piece on the press is realized.

Drawings

FIG. 1 is a schematic diagram of a multidirectional die forging forming die for a deep-cylinder forging in an embodiment of the utility model before pressing;

FIG. 2 is a schematic diagram of a multi-directional forging forming die for a deep-cylinder forging in an embodiment of the utility model;

FIG. 3 is a schematic drawing of a multi-directional swage forming die for deep-cylinder forgings in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an upper punch of a multi-directional die forging forming die for a deep-cylinder forging in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic diagram showing the distribution of punch grooves on a multidirectional die forging forming die of a deep-cylinder forging piece in an embodiment of the utility model;

FIG. 6 is a schematic diagram of a top block of a multi-directional die forging forming die for a deep-cylinder forging in accordance with an embodiment of the present utility model;

in the figure: 1. a lower die holder; 2. a lower top block; 3. pressing the block; 4. a lower mold core; 5. blank material; 6. an upper punch; 7. an upper mold core; 8. an upper die holder; 9. pressing into blocks; 10. an upper top block; 11. a connecting bolt; 12. an upper top plate; 13. a central cylinder; 14. a groove; 15. a sector block; 16. round bar end.

Detailed Description

The present utility model will be described in detail with reference to the following embodiments for a full understanding of the objects, features and effects of the present utility model, but the present utility model is not limited thereto.

Referring to fig. 1-3, the embodiment of the utility model provides a multidirectional die forging forming die for deep-cylinder forgings, a lower die holder 1 and a lower pressing block 3 are used for fixing a lower die core 4 together, a lower ejector block 2 is arranged at the bottom of the lower die core 4, the lower ejector block 2 is used for bearing a blank 5 and ejecting the formed blank 5 out of the lower die core 4 after demolding, the lower part of an upper punch 6 stretches into the lower die core 4 to press the blank 5 to form a small forming force on an end face, a groove 14 is formed in the upper side wall of the upper punch 6, the top of the upper punch 6 is connected with the upper die core 7, the upper die core 7 is fixed together with the upper pressing block 9 by an upper die holder 8, a convex hole is formed in the center of the upper die holder 8, an upper die core 7 is arranged at the lower part of the hole, an upper top plate 12 is arranged at the upper part of the hole, an upper ejector block 10 is connected onto the upper top plate 12, the upper ejector block 10 is positioned in the upper die core 7, the upper ejector block 10 comprises a round bar end 16 and a fan-shaped block 15, the round bar end 16 is connected with the upper top plate 12 by a connecting bolt 11, the fan-shaped block 15 is embedded into the groove 14 of the upper punch 6, and can move up and down in the groove 14. The blank 5 is pressed by the upper punch 6 and is co-formed by the lower top block 2, the lower core 4, the upper punch 6 and the upper top block 10. After the press forming, the central cylinder 13 descends, contacts with the upper top plate 12 and continues to descend, the upper top plate 12 drives the upper top block 10 to descend, and the sector block 15 of the upper top block 10 applies downward force to the forming blank 5, so that the forming blank 5 is separated from the upper punch 6.

Referring to fig. 4-6, the upper punch 6 is of a T-shaped structure, 3 grooves 14 are formed in the upper side wall, the circumference of the upper punch 6 is uniformly distributed on the upper horizontal end face, demolding force applied by the central cylinder 13 is ensured to be uniformly distributed on the upper top block 10 as much as possible, and unbalanced load force is reduced. The sector 15 at the lower end of the upper top block 10 is fitted into the recess 14 of the upper punch 6, forms a cylindrical horizontal end surface of the blank 5 together with the upper punch 6 during forming, contacts the formed blank 5 at the time of demolding, and separates the formed blank 5 from the upper punch 6 by the action of the center cylinder 13.

The forming method of the multidirectional die forging forming die for the deep-cylinder forging comprises the following steps of:

s1, referring to FIG. 1, a blank 5 is placed in a lower mold core 4 and is borne by a lower top block 2, the lower mold core 4 is fixed with a lower pressing block 3 by a lower mold base 1, an upper punch 6 is connected with an upper mold core 7, the upper mold core 7 is fixed with an upper pressing block 9 by an upper mold base 8, an upper top block 10 is embedded in the upper side wall of the upper punch 6, meanwhile, the top of the upper top block 10 is connected with an upper top plate 12 by a connecting bolt 11, and the upper top plate 12 is in an upper opening of the upper mold base 8 and above the upper mold core 7, so that the upper top block 10 is jointly ensured to be in a suspension state in the upper punch 6, and the initial position and the subsequent downlink forming process of the upper punch 6 are not influenced;

s2, referring to FIG. 2, the upper punch 6 presses the blank 5 in place under the action of the upper die holder 8, the upper die core 7 and the upper pressing block 9, the blank 5 is jointly formed by the lower ejector block 2, the lower die core 4, the upper punch 6 and the upper ejector block 10, in the forming process, the blank 5 contacts the upper ejector block 10 embedded and suspended in the upper punch 6, the upper ejector block 10, the connecting bolt 11 and the upper top plate 12 are jointly lifted, finally, the upper punch 6 and the upper ejector block 10 jointly form the horizontal end face of the deep cylinder type forge piece of the blank 5, and the upper top plate 12 is separated from the upper die core 7, so that the demoulding stroke of the upper ejector block 10 is ensured.

S3, referring to FIG. 3, after the blank 5 is formed, the upper die holder 8, the upper pressing block 9, the upper punch 6, the upper ejector block 10, the connecting bolt 11, the upper top plate 12 and the formed blank 5 are integrally moved up to be in place, then the central cylinder 13 is moved down to be in contact with the upper top plate 12 and move down to be in place, the upper top plate 12 is moved down to drive the upper ejector block 10 to move down, so that the formed blank 5 is separated from the upper punch 6, the formed blank 5 falls onto the lower ejector block 2 through self weight, the lower die core 4 is ejected out of the lower ejector block 2, and then the formed blank 5 can be taken out.

Finally, it should be noted that: the above list is only a preferred embodiment of the present utility model, and it is understood that those skilled in the art can make modifications and variations thereto, and it is intended that the present utility model be construed as the scope of the appended claims and their equivalents.

Claims (3)

1. The multidirectional die forging forming die for the deep-cylinder forging comprises an upper die holder, a lower die holder, an upper pressing block, a lower pressing block, an upper die core and a lower die core, and is characterized in that the lower die holder (1) and the lower pressing block (3) are used for fixing the lower die core (4), and a lower jacking block (2) is arranged at the bottom of the lower die core (4); the upper die holder (8) is together fixed with the upper briquetting (9) and is gone up mold core (7), and upper die core (7) lower part is connected with upper punch (6), and the lower part of upper punch (6) stretches into in lower mold core (4) and suppresses blank (5), and upper die core (7) top is provided with roof (12), and roof (12) are connected with upper ejector block (10), and upper punch (6) upper portion sliding connection goes up the lower part of ejector block (10).

2. The multidirectional die forging forming die for deep-cylinder forgings according to claim 1, wherein the upper punch (6) is of a T-shaped structure, a groove (14) is formed in the side wall of the upper portion of the upper punch (6), the upper ejector block (10) comprises a round rod end (16) and a sector block (15), the round rod end (16) is connected with the upper top plate (12) through a connecting bolt (11), and the sector block (15) is embedded in the groove (14) of the upper punch (6) in a matching mode and moves up and down in the groove (14).

3. The multidirectional die forging forming die for deep-cylinder forgings according to claim 1, wherein a convex hole is formed in the center of the upper die holder (8), an upper top plate (12) is arranged in the upper opening and moves up and down in the opening, and an upper die core (7) is arranged in the lower opening of the upper die holder (8).