CN112756538A - Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment - Google Patents

Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment Download PDF

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Publication number
CN112756538A
CN112756538A CN202110216885.9A CN202110216885A CN112756538A CN 112756538 A CN112756538 A CN 112756538A CN 202110216885 A CN202110216885 A CN 202110216885A CN 112756538 A CN112756538 A CN 112756538A
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CN
China
Prior art keywords
die
groove
forming
blank
forging
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Pending
Application number
CN202110216885.9A
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Chinese (zh)
Inventor
白仁伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Beixiang Heavy Machinery Manufacturing Co ltd
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Liaoning Beixiang Heavy Machinery Manufacturing Co ltd
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Application filed by Liaoning Beixiang Heavy Machinery Manufacturing Co ltd filed Critical Liaoning Beixiang Heavy Machinery Manufacturing Co ltd
Priority to CN202110216885.9A priority Critical patent/CN112756538A/en
Publication of CN112756538A publication Critical patent/CN112756538A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/025Closed die forging

Abstract

A near-net forming die and a forming method for forging a hinge beam of refined steel stone pressure equipment belong to the technical field of metal forging and processing, and particularly relate to a near-net forming die and a forming method for forging a hinge beam of refined steel stone pressure equipment. The invention provides a near-net forming die and a near-net forming method for forging a hinge beam of fine steel stone pressure equipment. The invention discloses a near-net forming die for forging a hinge beam of refined steel stone pressure equipment, which comprises an upper die, a lower die and two horizontal stamping dies, and is characterized in that: the center of the lower part of the upper die is provided with a central positioning bulge, and an annular groove which is sunken upwards is arranged outside the central positioning bulge; the lower die is a groove-shaped body with a U-shaped cross section, a circular groove is arranged in the center of the bottom of the groove-shaped body, two sides of the bottom of the groove-shaped body are inclined planes, and the two inclined planes are oppositely arranged, so that a groove with a large upper part and a small lower part is formed at the bottom of the groove-shaped body.

Description

Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment
Technical Field
The invention belongs to the technical field of metal forging processing, and particularly relates to a near-net forming die and a near-net forming method for forging a hinge beam of fine steel stone pressure equipment.
Background
The hinge beam is a main part of the diamond press, is large in stress, complex in shape and high in performance index requirement, and is forged to form a complete fiber tissue state as much as possible.
The width L of the hinge beam forging is 1960mm, the thickness H is 900mm, the size and the weight are large (see figures 11 and 12), and if free forging is adopted, the allowance is overlarge; by adopting the traditional upper and lower die forging method, the required press is extremely large, at least more than 3 ten thousand tons, the damage of a tool is serious, the consumption of a die is large, and finally the allowance of a forged piece can not be reduced.
Disclosure of Invention
The invention aims at the problems and provides a near-net forming die and a forming method for forging a hinge beam of fine steel stone pressure equipment.
In order to achieve the above purpose, the invention adopts the following technical scheme that the near-net forming die for forging the hinge beam of the refined steel stone pressure equipment comprises an upper die, a lower die and two horizontal punching dies, and is characterized in that: the center of the lower part of the upper die is provided with a central positioning bulge, and an annular groove which is sunken upwards is arranged outside the central positioning bulge; the lower die is a groove-shaped body with a U-shaped section, a circular groove is arranged in the center of the bottom of the groove-shaped body, two sides of the bottom of the groove-shaped body are inclined planes, and the two inclined planes are oppositely arranged, so that a groove with a large upper part and a small lower part is formed at the bottom of the groove-shaped body; the outer contour of the horizontal punching die is matched with the groove-shaped body of the lower die, the center of the inner surface of the horizontal punching die is provided with a forming groove, two sides of the forming groove are inclined forming inclined planes, and the outer sides of the two forming inclined planes are forming planes.
As a preferable aspect of the present invention, a mold locking mechanism is provided between the upper mold and the lower mold.
The invention discloses a near-net forming method for forging a hinge beam of refined steel stone pressure equipment, which is characterized by comprising the following steps of: the whole blank is processed into a round cake shape, and the lower part of the blank is processed with a matching surface matched with the inner inclined surface of the lower die; placing the rough machined blank into a lower die, and automatically positioning the workpiece under the matching of the matching surface and the inclined surface of the lower die; pressing the upper die; the center of the blank is extruded by the center positioning bulge of the upper die, the upper part of the blank metal flows to the annular groove, and the lower part of the blank metal flows to the inclined surface and the circular groove at the bottom of the lower die; completing one-time stamping after the upper die is in place; locking the upper die and the lower die through a die locking mechanism, closing the two horizontal punching dies, and forming the opposite surfaces of the blank metal and the horizontal punching dies under the action of a forming groove, a forming inclined plane and a forming plane; and (4) allowing redundant blank metal to flow to the inner side surface of the lower die, and completing the forming of the two surfaces and the secondary punching under the action of the inner side surface of the lower die to obtain the workpiece.
In a preferred embodiment of the present invention, the lower surface of the blank and the bottom of the inclined surface are provided with molding spaces.
The invention has the beneficial effects that: according to the near-net forming die and the forming method for the hinge beam forging of the refined steel stone pressure equipment, disclosed by the invention, the blank can be formed into a complex shape by applying multiple forces, particularly, the hinge beam is formed by multiple forces, the allowance of a forging piece is greatly reduced, and the production efficiency is higher than that of free forging and traditional die forging. The hinge beam forge piece is formed by the technology, the internal fiber structure state is more reasonable, the structure performance is better, and the service life of the press machine is prolonged.
Drawings
FIG. 1 is a schematic structural view before one-time stamping.
Fig. 2 is a schematic structural view after one-time punching.
Fig. 3 is a schematic structural view before secondary punching of the present invention.
Fig. 4 is a schematic structural view after the secondary punching of the present invention.
Fig. 5 is a schematic structural view of the upper die.
Fig. 6 is a cross-sectional view of fig. 5.
Fig. 7 is a schematic structural view of the lower mold.
Fig. 8 is a cross-sectional view of fig. 7.
Fig. 9 is a schematic view of a horizontal die.
Fig. 10 is a top view of fig. 9.
Fig. 11 is a structural schematic view of a hinge beam of the fine steel stone press apparatus.
Fig. 12 is a side half-sectional view of fig. 11.
In the drawing, 1 is a lower die, 2 is a blank, 3 is a clamping mechanism, 4 is an upper die, 5 is a horizontal punching die, 11 is an inclined surface, 12 is a groove body, 13 is a circular groove, 41 is an annular groove, 42 is a central positioning bulge, 51 is a forming inclined surface, 52 is a forming groove, and 53 is a forming plane.
Detailed Description
The invention discloses a near-net forming die for forging a hinge beam of refined steel stone pressure equipment, which comprises an upper die 4, a lower die 1 and two horizontal stamping dies 5, and is characterized in that: the center of the lower part of the upper die 4 is a central positioning bulge 42, and an annular groove 41 which is concave upwards is arranged outside the central positioning bulge 42; the lower die 1 is a groove-shaped body 12 with a U-shaped section, a circular groove 13 is arranged in the center of the bottom of the groove-shaped body 12, two sides of the bottom of the groove-shaped body 12 are both inclined surfaces 11, and the two inclined surfaces 11 are oppositely arranged, so that a groove with a large upper part and a small lower part is formed at the bottom of the groove-shaped body 12; the outer contour of the horizontal punching die 5 is matched with the groove-shaped body 12 of the lower die 1, the center of the inner surface of the horizontal punching die 5 is provided with a forming groove 52, two sides of the forming groove 52 are inclined forming inclined planes 51, and the outer sides of the two forming inclined planes 51 are forming planes 53.
As a preferred embodiment of the present invention, a clamping mechanism 3 is disposed between the upper mold 4 and the lower mold 1.
The invention discloses a near-net forming method for forging a hinge beam of refined steel stone pressure equipment, which is characterized by comprising the following steps of: the blank 2 is integrally processed into a round cake shape, and the lower part of the blank 2 is processed with a matching surface matched with the inner inclined surface 11 of the lower die 1; placing the rough machined blank 2 into the lower die 1, and automatically positioning the workpiece under the matching of the matching surface of the lower die 1 and the inclined surface 11; the upper die 4 is pressed down; the center of the blank 2 is extruded by the center positioning bulge 42 of the upper die 4, the metal upper part of the blank 2 flows to the annular groove 41, and the metal lower part of the blank 2 flows to the inclined surface 11 and the circular groove 13 at the bottom of the lower die 1; completing one-time stamping after the upper die 4 is in place; locking the upper die 4 and the lower die 1 through the die locking mechanism 3, closing the two horizontal punching dies 5, and forming the metal surface of the blank 2 opposite to the horizontal punching dies 5 under the action of a forming groove 52, a forming inclined surface 51 and a forming plane 53; and (3) allowing the redundant metal of the blank 2 to flow to the inner side surface of the lower die 1, completing the forming of the two sides at last under the action of the inner side surface of the lower die 1, and completing the secondary punching to obtain the workpiece.
In a preferred embodiment of the present invention, a molding space is provided between the lower surface of the blank 2 and the bottom of the inclined surface 11.
Example (b): the outer contour of the upper die 4 is a square of 1960 multiplied by 1960mm, and the distance from the lower surface of the central positioning bulge 42 of the upper die 4 to the highest point of the annular groove 41 is 300 mm; the distance between the inner walls of the groove-shaped bodies 12 of the lower die 1 is 1965mm, the diameter of the circular groove 13 of the lower die 1 is 1060mm, the distance from the upper surface of the lower die 1 to the lower surface of the circular groove 13 is 1830mm, and the blank 2 has a thickness of 800mm and a diameter of 1960 mm.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims (4)

1. The utility model provides a near net forming die is forged to smart steel stone pressure equipment hinge roof beam, includes mould (4), lower mould (1) and two horizontal punch dies (5), its characterized in that: the center of the lower part of the upper die (4) is provided with a central positioning bulge (42), and an annular groove (41) which is sunken upwards is arranged outside the central positioning bulge (42); the lower die (1) is a groove-shaped body (12) with a U-shaped cross section, a circular groove (13) is formed in the center of the bottom of the groove-shaped body (12), inclined surfaces (11) are arranged on two sides of the bottom of the groove-shaped body (12), and the two inclined surfaces (11) are arranged oppositely to form a groove with a large upper part and a small lower part at the bottom of the groove-shaped body (12); the outer contour of the horizontal punching die (5) is matched with the groove-shaped body (12) of the lower die (1), the center of the inner surface of the horizontal punching die (5) is provided with a forming groove (52), two sides of the forming groove (52) are inclined forming inclined planes (51), and the outer sides of the two forming inclined planes (51) are forming planes (53).
2. The near-net forming die for forging the hinge beam of the fine steel stone pressure equipment as claimed in claim 1, wherein: and a mold locking mechanism (3) is arranged between the upper mold (4) and the lower mold (1).
3. A near-net forming method for forging a hinge beam of refined steel stone pressure equipment is characterized by comprising the following steps of: the blank (2) is integrally processed into a round cake shape, and the lower part of the blank (2) is processed with a matching surface matched with the inner inclined surface (11) of the lower die (1); placing the rough machined blank (2) into the lower die (1), and automatically positioning the workpiece under the matching of the matching surface of the lower die (1) and the inclined surface (11); the upper die (4) is pressed down; the center of the blank (2) is extruded by a center positioning bulge (42) of the upper die (4), the metal upper part of the blank (2) flows to the annular groove (41), and the metal lower part of the blank (2) flows to the inclined surface (11) and the circular groove (13) at the bottom of the lower die (1); completing one-time stamping after the upper die (4) is in place; the upper die (4) and the lower die (1) are locked through the die locking mechanism (3), the two horizontal punching dies (5) are closed, and the surfaces of the metal of the blank (2) opposite to the horizontal punching dies (5) are formed under the action of the forming groove (52), the forming inclined plane (51) and the forming plane (53); and (3) allowing redundant metal of the blank (2) to flow to the inner side surface of the lower die (1), and completing forming of two surfaces and secondary stamping under the action of the inner side surface of the lower die (1) to obtain a workpiece.
4. A method of near net shape forging for a fine steel pressure apparatus hinge beam according to claim 3, wherein: and forming spaces are formed in the lower surface of the blank (2) and the bottom of the inclined surface (11).
CN202110216885.9A 2021-02-26 2021-02-26 Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment Pending CN112756538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110216885.9A CN112756538A (en) 2021-02-26 2021-02-26 Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110216885.9A CN112756538A (en) 2021-02-26 2021-02-26 Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment

Publications (1)

Publication Number Publication Date
CN112756538A true CN112756538A (en) 2021-05-07

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Application Number Title Priority Date Filing Date
CN202110216885.9A Pending CN112756538A (en) 2021-02-26 2021-02-26 Near-net forming die and method for forging hinge beam of refined steel stone pressure equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857404A (en) * 2021-10-26 2021-12-31 二重(德阳)重型装备有限公司 Method for forging hinge beam in short process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857404A (en) * 2021-10-26 2021-12-31 二重(德阳)重型装备有限公司 Method for forging hinge beam in short process

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