CN109127982B - Universal die for three-way valve bodies with same caliber and different pressures and forming method - Google Patents

Universal die for three-way valve bodies with same caliber and different pressures and forming method Download PDF

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Publication number
CN109127982B
CN109127982B CN201810921818.5A CN201810921818A CN109127982B CN 109127982 B CN109127982 B CN 109127982B CN 201810921818 A CN201810921818 A CN 201810921818A CN 109127982 B CN109127982 B CN 109127982B
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China
Prior art keywords
adjusting ring
punch
neck hole
die
horizontal
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CN201810921818.5A
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CN109127982A (en
Inventor
吴艳丽
张家伟
徐文翠
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Zhongye Heavy Industry Tangshan Co ltd
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Zhongye Heavy Industry Tangshan Co ltd
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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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/20Making machine elements valve parts
    • B21K1/24Making machine elements valve parts valve bodies; valve seats

Abstract

The invention relates to a die, in particular to a universal die for three-way valve bodies with the same caliber and different pressures and a forming method. The die comprises an upper die body and a lower die body matched with the upper die body, wherein an upper punch is arranged in a vertical neck hole, a left punch is arranged in a left horizontal neck hole, a right punch is arranged in a right horizontal neck hole, the vertical neck hole is of a stepped hole structure, an upper adjusting ring is arranged at the upper part of the vertical neck hole, and the upper punch penetrates through the upper adjusting ring; the horizontal neck hole in a left side and the horizontal neck hole in the right side are stepped hole structure respectively, and left side horizontal neck hole's left side is arranged in to left side adjustable ring, and right side adjustable ring is arranged in the right side of right side horizontal neck hole, and left drift, right drift pass left side adjustable ring, right side adjustable ring respectively, and the inboard of left side adjustable ring and right side adjustable ring is equipped with the boss structure respectively. The invention greatly reduces the cost of the die, reduces the manufacturing time of the die, simplifies the installation of the die, improves the efficiency and improves the economic benefit.

Description

Universal die for three-way valve bodies with same caliber and different pressures and forming method
Technical Field
The invention relates to a die, in particular to a universal die for three-way valve bodies with the same caliber and different pressures and a forming method.
Background
At present, a multidirectional die forging forming method is mostly adopted for a three-way valve body forge piece, and the three-way valve body forge piece is good in product forming quality and high in qualified rate and production efficiency. But for serial products with the same caliber specification and different pressure levels, the defect of high mould cost exists. The three-way valve body with the same caliber and different pressure grades has the same shape and size, the difference is the height of the vertical neck, the length of the horizontal neck and the diameter of an inner hole of the horizontal neck, along with the increase of the pressure grade, the height of the vertical neck and the length of the horizontal neck are increased, the diameter of the inner hole of the horizontal neck is reduced, the multidirectional die forging forming method is precise closed forging, a die cavity of the multidirectional die forging forming method is consistent with the shape of the three-way valve body, dies of the three-way valve body with the same caliber and different pressures are different, particularly the three-way valve body with the larger caliber is smaller in demand, each pressure grade can only need dozens of pieces or even more pieces, the size of the die is large, and the cost.
Disclosure of Invention
The invention aims to provide a universal die for three-way valve bodies with the same caliber and different pressures and a forming method, so that the die cost is reduced, and the economic benefit is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a universal die for three-way valve bodies with the same caliber and different pressures comprises an upper die body and a lower die body matched with the upper die body, wherein an upper punch is arranged in a vertical neck hole; the horizontal neck hole in a left side and the horizontal neck hole in the right side are stepped hole structure respectively, and left side horizontal neck hole's left side is arranged in to left side adjustable ring, and right side adjustable ring is arranged in the right side of right side horizontal neck hole, and left drift, right drift pass left side adjustable ring, right side adjustable ring respectively, and the inboard of left side adjustable ring and right side adjustable ring is equipped with the boss structure respectively.
The forming method of the universal die for the three-way valve body with the same caliber and different pressures comprises the following steps:
A. installing a mold: the upper die body is connected with a movable beam of the multidirectional die forging press, an upper punch is connected with a vertical perforating cylinder of the multidirectional die forging press, and a left punch and a right punch are respectively connected with a horizontal cylinder of the multidirectional die forging press;
B. preheating a die and heating a blank: preheating the round bar blank and the die.
C. Forging: immediately placing the blank into a cavity of a lower die body after the blank is discharged, descending the upper die body to be matched with the lower die body and maintaining pressure, vertically descending the upper punch to a final position, and finally horizontally oppositely punching the left punch and the right punch to the final position, and finishing the whole forging process;
D. returning the die and taking out the forged piece: the left punch, the right punch, the upper punch and the upper die return under the action of the horizontal cylinder, the vertical perforating cylinder and the movable beam of the multidirectional die forging press in sequence, the lower ejection block moves upwards under the action of the lower ejection cylinder to eject the forged piece, and the forged piece is taken out.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
the cost of the die is greatly reduced, the manufacturing time of the die is reduced, the installation of the die is simplified, the efficiency is improved, and the economic benefit is improved.
Further, the optimization scheme of the invention is as follows:
the lower surface of the upper adjusting ring is of a plane structure.
The lower surface of the upper adjusting ring is of a circular groove structure, and the diameter of the groove structure is equal to that of the vertical neck hole.
The axes of the left adjusting ring and the right adjusting ring are coincident.
The axis of the upper adjusting ring is coincident with the axis of the upper punch.
The diameter of the boss structure is equal to the inner diameters of the left horizontal neck hole and the right horizontal neck hole respectively.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 4 is a front view of the valve body forging of the present invention;
FIG. 5 is a left side view of the valve body forging of the present invention;
FIG. 6 is a schematic illustration of a valve body forging blank of the present invention;
in the figure, a lower die body 1; 1-1 of a left horizontal neck hole; 1-2 parts of right horizontal neck hole; the ejection block 2 is pushed down; a left punch 3; a left adjusting ring 4; an upper die body 5; 5-1 of a vertical neck hole; an upper punch 6; an upper adjusting ring 7; a groove structure 7-1; a right punch 8; a right adjusting ring 9; a 2500 pound grade valve body forging 10; a 900 pound grade valve body forging 11; 1500 pound class valve body forging 12; a 2500 pound grade forging blank 13; a 900 pound class forging blank 14; 1500 pound class forging stock 15.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Referring to fig. 1, a die for processing a 2500 pound valve forging 10 (shown in fig. 4 and 5) is composed of a lower die body 1, an ejection block 2, a left punch 3, a left adjusting ring 4, an upper die body 5, an upper punch 6, an upper adjusting ring 7, a right punch 8 and a right adjusting ring 9.
The upper die body 5 is matched with the lower die body 1, a vertical neck hole 5-1 is machined in the upper die body 5, the vertical neck hole 5-1 is of a stepped hole structure, the hole diameter of the upper portion of the stepped hole is larger than that of the lower portion of the stepped hole, an upper adjusting ring 7 is arranged on the upper portion of the vertical neck hole 5-1, and the upper adjusting ring 7 is connected with the upper die body 5 through a bolt. The upper adjusting ring 7 is provided with a central hole, the upper punch 6 penetrates through the central hole of the upper adjusting ring 7 and is arranged in the vertical neck hole 5-1, and the upper punch 6 is a vertical punch. The lower surface of the upper adjusting ring 7 is a circular groove structure 7-1, and the diameter of the groove structure 7-1 is the same as that of the vertical neck hole 5.
The lower ejection block 2 is installed in a central hole in the bottom of the lower die body 1, a left horizontal neck hole 1-1 and a right horizontal neck hole 1-2 are machined in the two sides of the lower die body 1, the left horizontal neck hole 1-1 and the right horizontal neck hole 1-2 are of stepped hole structures respectively, the aperture of the left side of the left horizontal neck hole 1-1 is larger than that of the right side of the left horizontal neck hole 1-1, and the aperture of the right side of the right horizontal neck hole 1-2 is larger than that of the left side of the right horizontal neck hole. The left adjusting ring 4 is installed on the left side of the left horizontal neck hole 1-1, and the left adjusting ring 4 is connected with the lower die body 1 through a bolt. The left adjusting ring 4 is provided with a central hole, and the left punch 3 passes through the central hole of the left adjusting ring 4 and is arranged in the left horizontal neck hole 1-1. The right adjusting ring 9 is arranged on the right side of the right horizontal neck hole 1-2, and the right adjusting ring 9 is connected with the lower die body 1 through a bolt. The right punch 8 passes through the central hole of the right adjusting ring 9 and is arranged in the right horizontal neck hole 1-2.
The axes of the left adjusting ring 4 and the right adjusting ring 9 are overlapped, the inner side surfaces of the left adjusting ring 4 and the right adjusting ring 9 are respectively processed with a boss structure, and the outer diameter of the boss structure is respectively equal to the inner diameter of the left horizontal neck hole 1-1 and the inner diameter of the right horizontal neck hole 1-2. The outer cylindrical surface of the boss structure of the left adjusting ring 4 is matched with the inner circumferential surface of the left horizontal neck hole 1-1, and the outer cylindrical surface of the boss structure of the right adjusting ring 9 is matched with the inner circumferential surface of the right horizontal neck hole 1-2.
FIG. 2 is a die for machining a 900 pound class valve body forging 11 (shown in FIGS. 4 and 5) with the lower surface of the upper adjusting ring 7 in a planar configuration. The lower die body 1, the lower ejection block 2, the upper die body 5 and the upper punch 6 are universal to dies for machining 2500 pound valve body forgings 10, and the upper adjusting ring 7, the left punch 3, the left adjusting ring 4, the right punch 8 and the right adjusting ring 9 are used independently.
Fig. 3 is a die for processing a 1500 lb class valve body forging 12 (shown in fig. 4 and 5), the lower surface of the upper adjusting ring 7 is a groove structure 7-1, the lower die body 1, the lower ejection block 2, the upper die body 5 and the upper punch 6 are used in common with the first and second embodiments, and the upper adjusting ring 7, the left punch 3, the left adjusting ring 4, the right punch 8 and the right adjusting ring 9 are used independently.
The female die of the invention adopts a combined form, and designs three groups of die structures as shown in figures 1, 2 and 3 according to the structural characteristics of three forgings, wherein the three groups of dies, namely the lower die body 1, the ejection block 2, the upper die body 5 and the upper punch 6, are universal, the upper adjusting ring 7, the left punch 3, the left adjusting ring 4, the right punch 8 and the right adjusting ring 9 are related to the pound level of the forgings, and each forging is independently used.
The forging method of the invention comprises the following steps:
A. installing a mold: the upper die body 5 is connected with a movable beam of the multidirectional die forging press and provides a die closing force; the upper punch 6 is connected with a vertical perforating cylinder of the multidirectional die forging press and provides vertical perforating force by the vertical perforating cylinder; the left punch 3 and the right punch 8 are respectively connected with a horizontal cylinder of the multidirectional die forging press and provide horizontal perforating force by the horizontal cylinder; the lower ejection block 2 is connected with the lower ejection cylinder and provides ejection force by the lower ejection cylinder;
B. preheating a die and heating a blank: preheating a round bar blank (shown in figure 6) and a mould;
C. forging: immediately placing the blank into a cavity of a lower die body 1 after the blank is discharged, descending an upper die body 5 to be matched with the lower die body 1 and maintaining pressure, vertically descending an upper punch to a final position, and finally horizontally oppositely punching a left punch 3 and a right punch 8 to the final position, and finishing the whole forging process;
D. returning the die and taking out the forged piece: the left punch 3, the right punch 8, the upper punch 6 and the upper die body 5 return under the action of a horizontal cylinder, a vertical perforating cylinder and a movable beam of a multidirectional die forging press in sequence, the lower ejection block 2 moves upwards under the action of a lower ejection cylinder to eject the forged piece, and the forged piece is taken out;
after the production of one pound class forging is finished, only the corresponding upper adjusting ring 7, the left punch 3, the left adjusting ring 4, the right punch 8 and the right adjusting ring 9 need to be replaced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.

Claims (3)

1. The utility model provides a different pressure tee bend valve body general mould of same bore, includes the mould body, specifically with last mould body complex lower mould, in vertical neckhole was arranged in to the upper punch, left horizontal neckhole was arranged in to left drift, and right horizontal neckhole is arranged in to right drift, its characterized in that:
the vertical neck hole is in a stepped hole structure, the upper adjusting ring is arranged at the upper part of the vertical neck hole, and the upper punch penetrates through the upper adjusting ring; the left horizontal neck hole and the right horizontal neck hole are respectively of a stepped hole structure, the left adjusting ring is arranged on the left side of the left horizontal neck hole, the right adjusting ring is arranged on the right side of the right horizontal neck hole, the left punch and the right punch respectively penetrate through the left adjusting ring and the right adjusting ring, and boss structures are respectively arranged on the inner sides of the left adjusting ring and the right adjusting ring;
the lower surface of the upper adjusting ring is of a plane structure;
the axes of the left adjusting ring and the right adjusting ring are overlapped;
the axis of the upper adjusting ring is superposed with the axis of the upper punch;
the diameter of the boss structure is equal to the inner diameters of the left horizontal neck hole and the right horizontal neck hole respectively.
2. The utility model provides a different pressure tee bend valve body general mould of same bore, includes the mould body, specifically with last mould body complex lower mould, in vertical neckhole was arranged in to the upper punch, left horizontal neckhole was arranged in to left drift, and right horizontal neckhole is arranged in to right drift, its characterized in that:
the vertical neck hole is in a stepped hole structure, the upper adjusting ring is arranged at the upper part of the vertical neck hole, and the upper punch penetrates through the upper adjusting ring; the left horizontal neck hole and the right horizontal neck hole are respectively of a stepped hole structure, the left adjusting ring is arranged on the left side of the left horizontal neck hole, the right adjusting ring is arranged on the right side of the right horizontal neck hole, the left punch and the right punch respectively penetrate through the left adjusting ring and the right adjusting ring, and boss structures are respectively arranged on the inner sides of the left adjusting ring and the right adjusting ring;
the lower surface of the upper adjusting ring is of a circular groove structure, and the diameter of the groove structure is equal to that of the vertical neck hole;
the axes of the left adjusting ring and the right adjusting ring are overlapped;
the axis of the upper adjusting ring is superposed with the axis of the upper punch;
the diameter of the boss structure is equal to the inner diameters of the left horizontal neck hole and the right horizontal neck hole respectively.
3. A method for forming a universal mold for three-way valve bodies with the same caliber and different pressures according to claim 1 or 2, which is characterized by comprising the following steps:
A. installing a mold: the upper die body (5) is connected with a movable beam of the multidirectional die forging press and provides a die closing force; the upper punch (6) is connected with the vertical perforating cylinder of the multidirectional die forging press and provides vertical perforating force by the vertical perforating cylinder; the left punch (3) and the right punch (8) are respectively connected with a horizontal cylinder of the multidirectional die forging press and provide horizontal perforating force; the lower ejection block (2) is connected with the lower ejection cylinder and provides ejection force;
B. preheating a die and heating a blank: preheating a round bar blank and a mould;
C. forging: immediately placing the blank into a cavity of a lower die body (1) after the blank is discharged, descending an upper die body (5) to be matched with the lower die body (1) and maintaining pressure, vertically descending an upper punch to a final position, and finally horizontally opposite-punching a left punch (3) and a right punch (8) to the final position, and finishing the whole forging process;
D. returning the die and taking out the forged piece: the left punch (3), the right punch (8), the upper punch (6) and the upper die body (5) return in sequence under the action of a horizontal cylinder, a vertical perforating cylinder and a movable beam of a multidirectional die forging press, the lower ejection block (2) moves upwards under the action of a lower ejection cylinder to eject the forged piece, and the forged piece is taken out;
after the production of one pound level forging is finished, only the corresponding upper adjusting ring (7), the left punch (3), the left adjusting ring (4), the right punch (8) and the right adjusting ring (9) need to be replaced.
CN201810921818.5A 2018-08-11 2018-08-11 Universal die for three-way valve bodies with same caliber and different pressures and forming method Active CN109127982B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810921818.5A CN109127982B (en) 2018-08-11 2018-08-11 Universal die for three-way valve bodies with same caliber and different pressures and forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810921818.5A CN109127982B (en) 2018-08-11 2018-08-11 Universal die for three-way valve bodies with same caliber and different pressures and forming method

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CN109127982A CN109127982A (en) 2019-01-04
CN109127982B true CN109127982B (en) 2020-09-22

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112122533B (en) * 2020-09-16 2021-09-10 燕山大学 Square tee two-stage forming die and forming process
CN112275988A (en) * 2020-10-13 2021-01-29 中冶重工(唐山)有限公司 Branch type tee joint forming die and forming method
CN113070437A (en) * 2021-03-15 2021-07-06 苏州孚杰机械有限公司 Large valve body forming die and vertical four-way forming process thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201792490U (en) * 2010-06-30 2011-04-13 沈家同 Combined die for hot press molding of plastic inspection wells
CN102873239B (en) * 2012-09-28 2014-09-03 江苏隆盛钻采机械制造有限公司 Full-closed multi-way integral die-forging forming process for large-size valve bodies
CN205553179U (en) * 2016-03-14 2016-09-07 河北亚都管道装备集团有限公司 Many sizes tee bend hot briquetting mould
CN205551352U (en) * 2016-04-21 2016-09-07 李韶兴 Multipleram forging forming device
CN107671221A (en) * 2017-11-27 2018-02-09 二十二冶集团精密锻造有限公司 The not shaping dies and manufacturing process of equal tee valve body

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