Die for blade forge piece

Abstract

The utility model belongs to the field of die design of blade forgings, and relates to a die of a blade forgings. The method comprises the following steps: for an upper die and a lower die, a bearing surface is a plane, and a parting surface is a torsion curved surface with the same torsion angle as a blade forging; a burr bridge and a burr bin naturally extend along the upper and lower mold cavities; one pair of burr bridge and burr bin located on the diagonal line of the parting surface is higher than the impact bearing surface to form a convex lock catch, and the other pair of burr bridge and burr bin located on the diagonal line of the parting surface is lower than the impact bearing surface to form a concave lock catch; after the upper die and the lower die are closed, the concave lock catch of the upper die and the convex lock catch of the lower die form a pair of lock catches; and the convex lock catch of the upper die and the concave lock catch of the lower die form a pair of lock catches.

Description

Technical Field

[0001] This utility model belongs to the field of mold design for blade forgings, and relates to a mold for blade forgings. Background Technology

[0002] During the forging process, the asymmetrical structure of the forging often causes torsion and misalignment between the forging and the equipment, damaging the equipment and causing dimensional deviations in the forging. To address this, locking mechanisms are typically installed in the die to balance the horizontal misalignment forces during forging and reduce forging misalignment. Forging die locking mechanisms come in various forms, typically diagonal, side-block, and square. Commonly used die locking mechanisms consist of convex and concave locking mechanisms. The working surfaces of the convex and concave locking mechanisms are angled at 3–5° to the vertical plane based on the locking mechanism height, with a single-sided gap of 0.5–1.2 mm. However, such locking mechanisms generally require individual installation, and the machining volume of each die is large, necessitating the purchase of thicker dies. Utility Model Content

[0003] Purpose of this utility model: To provide a design method for a locking buckle in a blade forging mold, thereby reducing mold processing costs.

[0004] Technical solution:

[0005] A die for a blade forging is provided, comprising an upper die and a lower die;

[0006] For the upper and lower dies, the impact surface is a plane, and the parting surface is a torsional curved surface with the same torsion angle as the blade forging; the burr bridge and burr compartment extend naturally along the upper and lower die cavities; a pair of burr bridges and burr compartments located on the diagonal of the parting surface are higher than the impact surface, forming a convex lock, and another pair of burr bridges and burr compartments located on the diagonal of the parting surface are lower than the impact surface, forming a concave lock.

[0007] After the upper and lower molds are closed, the concave locking buckle of the upper mold and the convex locking buckle of the lower mold form a pair of locking buckles; the convex locking buckle of the upper mold and the concave locking buckle of the lower mold form a pair of locking buckles.

[0008] Furthermore, the space formed by the recessed latch and the impact surface can accommodate a square area with a height of 100mm and a width of 100mm.

[0009] Furthermore, a single-sided gap of 0.5 to 1.2 mm is provided on the lateral contact surface of any latch.

[0010] Furthermore, a single-sided gap of 0.5 to 1.2 mm is provided on the lateral contact surface of any latch, and an angle of 0 to 5° is required depending on the latch height.

[0011] Furthermore, the outer circle of the convex lock needs to be rounded.

[0012] Furthermore, the inner circle of the concave lock needs to be chamfered with a rounded corner, and the radius of the concave corner is smaller than that of the convex corner.

[0013] Beneficial effects:

[0014] This invention changes the positional distribution of the cavities in the mold, so that the burr bridge of the forging is located in two molds simultaneously. The height difference between the burr bridge and the impact surface of the mold forms a locking mechanism, reducing the amount of processing required for the mold and reducing the thickness of the mold. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a blade-type forging.

[0016] Figure 2 This is a schematic diagram of the mold.

[0017] Figure 3 This is a schematic diagram of the mold cross-section. Detailed Implementation

[0018] This utility model provides a blade forging mold, based on the forging ( Figure 1 The plane containing half the height difference between the highest and lowest points of the forging is used as the impact surface of the mold. The burr clip is set to extend naturally along the shape of the forging body to form a lock. The working surfaces on both sides of the lock must have a square contact surface of not less than 100×100mm. The contact surface of the lock is set with an angle of 3~5° according to the height of the lock, and a single-sided gap of 0.5~1.2mm.

[0019] This utility model provides a mold for blade forging, such as Figure 2-3 As shown, it includes an upper mold 11 and a lower mold 12;

[0020] For the upper die, the impact surface 21 is a plane, and the parting surface is a torsional curved surface with the same torsion angle as the blade forging; the burr bridge and burr compartment extend naturally along the upper die cavity; a pair of burr bridges and burr compartments located on the diagonal of the parting surface are higher than the impact surface, forming upper convex latches 111 and 112, and another pair of burr bridges and burr compartments located on the diagonal of the parting surface are lower than the impact surface, forming upper concave latches 113 and 114;

[0021] For the lower die, the impact surface 22 is a plane, and the parting surface is a torsional surface with the same torsion angle as the blade forging; the burr bridge and burr compartment extend naturally along the upper die cavity; a pair of burr bridges and burr compartments located on the diagonal of the parting surface are higher than the impact surface, forming lower convex latches 121 and 122, and another pair of burr bridges and burr compartments located on the diagonal of the parting surface are lower than the impact surface, forming lower concave latches 123 and 124;

[0022] After the upper and lower molds are closed, the concave locking buckle of the upper mold and the convex locking buckle of the lower mold form a pair of locking buckles; the convex locking buckle of the upper mold and the concave locking buckle of the lower mold form a pair of locking buckles.

[0023] Determine the length and shape of the burr bridge and burr compartment, and extend the burr bridge and burr compartment naturally along the outer shape of the forging, so that both the upper and lower dies have burr compartments. Among them, 11 is the upper die, 12 is the lower die, 111, 112, 121, and 122 are the first upper convex lock, the second upper convex lock, the first lower convex lock, and the second lower convex lock, respectively, and 113, 114, 123, and 124 are the first upper concave lock, the second upper concave lock, the first lower concave lock, and the second lower concave lock, respectively. The working surfaces on both sides of each lock must have a square contact surface of not less than 100×100mm. The lock contact surface is set with an angle of 0~5° and a single-sided gap of 0.5~1.2mm according to the lock height.

[0024] by Figure 3 Taking a pair of latches (convex latch 114 and concave latch 124) in the mold as an example, the working surfaces of the mold are inclined surfaces 31 and 32, with 31 and 32 forming an angle of 0 to 5 degrees with the vertical surface. The space formed by the concave latch and the impact surface can accommodate a square area with a height of 100 mm and a width of 100 mm.

Claims

1. A die for a vane forging, characterized by, The upper die and the lower die are included; For the upper and lower dies, the impact surface is a plane, and the parting surface is a twisted surface with the same twist angle as the twist angle of the blade forging; the flash bridge and the flash bin naturally extend along the upper and lower die cavities; one pair of flash bridges and flash bins located at the diagonals of the parting surface are higher than the impact surface, forming convex locking catches; the other pair of flash bridges and flash bins located at the diagonals of the parting surface are lower than the impact surface, forming concave locking catches; After the upper die and the lower die are closed, the concave locking catches of the upper die and the convex locking catches of the lower die form a pair of locking catches; the convex locking catches of the upper die and the concave locking catches of the lower die form a pair of locking catches.

2. The mold of claim 1, wherein The space composed of the concave locking catches and the impact surface can accommodate a square area with a height of 100 mm and a width of 100 mm.

3. The mold of claim 2, wherein, The lateral contact surface of any locking catch is provided with a single-sided gap of 0.5-1.2 mm.

4. The mold of claim 2, wherein, The lateral contact surface of any locking catch is provided with a single-sided gap of 0.5-1.2 mm, and an angle of 0-5° is set according to the height of the locking catch.

5. The mold of claim 1, wherein, The outer circle of the convex locking catch needs to be chamfered.

6. The mold of claim 5, wherein, The inner circle of the concave locking catch needs to be chamfered, and the R angle of the concave chamfer is smaller than the R angle of the convex chamfer.

Images