CN216729361U

CN216729361U - Die structure of four-way forging

Info

Publication number: CN216729361U
Application number: CN202220338881.8U
Authority: CN
Inventors: 张家伟; 张志鹏; 徐文翠
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-06-14
Anticipated expiration: 2032-02-21

Abstract

The utility model relates to the technical field of extrusion dies, in particular to a die structure of a four-way forging. When the lower die and the upper die are assembled, a cross-shaped cavity with four disc-shaped ends is formed inside, lower through grooves for communicating the cavity with the side surface of the lower die are respectively formed on extension lines of a cross axis of the cavity at the top of the lower die, lower through grooves for communicating the cavity with the side surface of the upper die are respectively formed on extension lines of a cross axis of the cavity at the bottom of the upper die, and after the upper die and the lower die are assembled, the lower through grooves and the upper through grooves are combined to sequentially form an extrusion channel for the left extrusion die, the right extrusion die, the front extrusion die and the rear extrusion die to pass through; the die structure solves the problem that the conventional forging cannot be formed at one time by one fire, also solves the problems of raw material waste and large consumption of machining working hours, and provides a high-quality forging product which can save raw materials and improve the mechanical property of the product for high-temperature and high-pressure fields of petroleum and petrochemical industry and the like.

Description

Die structure of four-way forging

Technical Field

The utility model relates to the technical field of extrusion dies, in particular to a die structure of a four-way forging.

Background

The forging forming of a four-way flanged product (four-way valve) on a petroleum production tree is difficult to solve the problems of excessive waste of raw materials and low mechanical property of a product body by adopting a conventional forging mode due to the complex appearance of the product.

At present, the four-way valve products on the Christmas tree mostly adopt free forging and common die forging, and because no die capable of forging and forming the four-way valve at one time exists, the forming process is more, and the four-way valve mainly comprises the processes of upsetting, drawing out, trimming and the like, so that the cost reduction and efficiency improvement of manufacturers meet the technical bottleneck, in addition, the two modes can generate great waste in the use of raw materials, and the extra material cost is increased.

SUMMERY OF THE UTILITY MODEL

The present invention is made to solve the above problems, and provides a die structure of a four-way forging which can be formed by one-time forging.

The utility model solves the problems and adopts the technical scheme that:

the utility model provides a mould structure of quadriversal forging, including the top die, left side extrusion die, right side extrusion die, preceding extrusion die, back extrusion die and the bed die below of arranging in, inside cross and the four discoid die cavities that all are formed of formation when bed die and last die compound die, the lower logical groove of intercommunication die cavity and bed die side is seted up respectively on the extension line of the cross axis that the bed die top is located the die cavity, the lower logical groove of intercommunication die cavity and last die side is seted up respectively on the extension line of the cross axis that goes up the die bottom is located the die cavity, go up the die and constitute in proper order with last logical groove combination down behind the die compound die and the bed die and supply left extrusion die, right side extrusion die, preceding extrusion die, the extrusion passageway that back extrusion die walked.

Compared with the prior art, the utility model adopting the technical scheme has the outstanding characteristics that:

the die structure solves the problem that the conventional forging cannot be formed at one time by one fire, also solves the problems of raw material waste and large consumption of machining working hours, and provides a high-quality forging product which can save raw materials and improve the mechanical property of the product for high-temperature and high-pressure fields of petroleum and petrochemical industry and the like.

Preferably, the utility model further comprises:

the four corners of the top of the lower die are respectively provided with a raised positioning block, and the four corners of the bottom of the upper die are respectively provided with a groove corresponding to the positioning block.

A vertical through hole is formed in the lower die and located in the center of the die cavity, an ejection die is arranged in the vertical through hole, and the top of the ejection die is of an arc surface shape matched with the bottom of the die cavity.

Drawings

FIG. 1 is a schematic structural view of a front cross section in the working process of a die structure of a four-way forging provided by an embodiment of the utility model;

FIG. 2 is a schematic top view cross-sectional structural view of a four-way forging die structure provided in the embodiment of the present invention during operation;

FIG. 3 is a front view of a forging being forged by the die structure of a four-way forging according to an embodiment of the present invention;

FIG. 4 is a left side view of a forging being forged by the die structure of a four-way forging according to an embodiment of the present invention;

FIG. 5 is a top view of a forging being forged by the die structure of a four-way forging according to an embodiment of the present invention;

FIG. 6 is a perspective view of a forging being forged by the die structure of a four-way forging according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a front view of an initial position of a die structure of a four-way forging according to an embodiment of the present invention;

FIG. 8 is a schematic top sectional view of a die structure of a four-way forging according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a front view of a die structure of a four-way forging for placing a blank according to an embodiment of the present invention;

FIG. 10 is a schematic top sectional view of a die structure for a four-way forging according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a front view when an upper die and a lower die of a die structure of a four-way forging provided by the embodiment of the utility model are closed;

FIG. 12 is a schematic top sectional view of a die structure of a four-way forging according to an embodiment of the present invention, when an upper die and a lower die are closed;

FIG. 13 is a schematic structural diagram of a front view of a front extrusion die and a rear extrusion die of a die structure of a four-way forging according to an embodiment of the present invention;

FIG. 14 is a schematic top view cross-sectional structure view of the extrusion blanks of the front extrusion die and the rear extrusion die of the die structure of the four-way forging according to the embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a left extrusion die and a right extrusion die of a four-way forging die structure for extruding blanks according to an embodiment of the present invention;

FIG. 16 is a schematic top view cross-sectional structure view of a left extrusion die and a right extrusion die extrusion blank of a die structure of a four-way forging according to an embodiment of the present invention;

FIG. 17 is a schematic structural view of a front view of a four-way forging ejecting a forging when the die structure of the forging is completed;

FIG. 18 is a schematic perspective view of a four-way forging according to an embodiment of the present invention illustrating a three-dimensional structure of the four-way forging ejecting the forging when the die structure of the four-way forging is completed;

labeled as: the die comprises an upper die 1, a lower die 2, a left extrusion die 3, a right extrusion die 4, a front extrusion die 5, a rear extrusion die 6, a cavity 7, an ejection die 8 and a forging 9.

Detailed Description

The utility model will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the utility model.

Referring to fig. 1-18, a die structure of a four-way forging comprises an upper die 1, a lower die 2, a left extrusion die 3, a right extrusion die 4, a front extrusion die 5, a rear extrusion die 6, a cavity 7, an ejection die 8 and a forging 9, wherein the upper die 1 is arranged above the lower die 2, the lower die 2 and the upper die 1 form a cross-shaped cavity 7 with four disc-shaped ends when being matched, lower through grooves communicating the cavity 7 with the side surfaces of the lower die 2 are respectively arranged on extension lines of a cross axis of the cavity 7 at the top of the lower die 2, lower through grooves communicating the cavity 7 with the side surfaces of the upper die 1 are respectively arranged on extension lines of the cross axis of the cavity 7 at the bottom of the upper die 1, after the upper die 1 and the lower die 2 are closed, the lower through groove and the upper through groove are combined to form an extrusion channel for a left extrusion die 3, a right extrusion die 4, a front extrusion die 5 and a rear extrusion die 6 to pass through in sequence; four corners of the top of the lower die 2 are respectively provided with a raised positioning block, and four corners of the bottom of the upper die 1 are respectively provided with a groove corresponding to the positioning block; a vertical through hole is formed in the lower die 2 and located in the center of the die cavity 7, an ejection die 8 is arranged in the vertical through hole, and the top of the ejection die 8 is of an arc surface shape matched with the bottom of the die cavity 7.

The use process of the die comprises the following steps: placing the preheated die at an appointed position, lifting the upper die 1 to an initial position to facilitate blank placement, placing the left extrusion die 3, the right extrusion die 4, the front extrusion die 5 and the rear extrusion die 6 at initial positions, clamping and placing the heated cylindrical blank on the lower die 2, moving the upper die 1 downwards until the parting surfaces are closed, moving the front extrusion die 5 and the rear extrusion die 6 relatively at the same speed to realize that the blank flows into the cavities 7 at two sides until the front extrusion die 5 and the rear extrusion die 6 are extruded to a preset end position, moving the left extrusion die 3 and the right extrusion die 4 relatively at the same speed until the forging 9 is filled with the cavities 7 to complete extrusion molding, opening the dies to the initial positions in sequence respectively, ejecting the ejection die 8 to eject the forging 9 upwards to complete the forging process, and performing secondary processing on the forging 9 after the forging 9 is forged, and (3) performing finish machining on the flange plates of the four ends of the forged piece 9, and punching the inside of the forged piece 9 to enable the four ends to be communicated.

The die structure solves the problem that the conventional forging cannot be formed at one time by one fire, also solves the problems of raw material waste and large consumption of machining working hours, saves the raw materials by more than 20 percent, saves the machining cost, and reduces the waste of energy and labor; the forging piece has the advantages that a high-quality forging piece product which can save raw materials and improve the mechanical property of the product is provided for high-temperature and high-pressure fields of petroleum and petrochemical industry and the like, the internal structure flow line of the forging piece is compact and continuous, and the flow line is not cut off; the comprehensive mechanical property of the forging is obviously improved.

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

1. The utility model provides a mould structure of quadriversal forging, includes mould, left extrusion die, right extrusion die, preceding extrusion die, back extrusion die and arranges the bed die of last mould below in, its characterized in that: inside cross and four ends all are discoid die cavities that form when bed die and last die closing, the lower through groove of intercommunication die cavity and bed die side has been seted up respectively on the extension line of the cross axis that the bed die top is located the die cavity, the lower through groove of intercommunication die cavity and last die side has been seted up respectively on the extension line of the cross axis that the bed die bottom is located the die cavity, it constitutes the extrusion passageway that supplies left extrusion die, right extrusion die, preceding extrusion die, back extrusion die to walk in proper order to lead to groove and last logical combination down behind last die and the bed die closing.

2. The die structure of a four-way forging according to claim 1, characterized in that: the four corners of the top of the lower die are respectively provided with a raised positioning block, and the four corners of the bottom of the upper die are respectively provided with a groove corresponding to the positioning block.

3. The die structure of a four-way forging according to claim 1, characterized in that: a vertical through hole is formed in the lower die and located in the center of the die cavity, an ejection die is arranged in the vertical through hole, and the top of the ejection die is of an arc surface shape matched with the bottom of the die cavity.