CN220127512U

CN220127512U - Valve body forging mould base

Info

Publication number: CN220127512U
Application number: CN202321218525.3U
Authority: CN
Inventors: 张光喜
Original assignee: Ningbo Shunhe Mould Manufacturing Co ltd
Current assignee: Ningbo Shunhe Mould Manufacturing Co ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-12-05
Anticipated expiration: 2033-05-17

Abstract

The utility model discloses a valve body forging die blank, which belongs to the technical field of die structures and is used for providing a valve body forging die blank with more convenient forging operation. The utility model discloses a design two movable moulds that the structure is similar, set up the die cavity between the opposite face of movable mould, let the metalwork be close specific shape through the mode of extrusion preforming, reuse forging mode is forged the shaping with the embryo, does not need many times adjustment angle in the forging process, has simplified forging operation.

Description

Valve body forging mould base

Technical Field

The utility model relates to the technical field of die structures, in particular to a valve body forging die blank.

Background

The valve body is usually produced by adopting a casting mode, but the cast valve body has the defects of loose casting state and the like, the structural strength of the valve body is influenced, in order to improve the mechanical property of the valve body, a forging mode is usually adopted, but the valve body is provided with at least one connecting end structure, so that a blank is difficult to form a specific shape in the forging process, particularly when the number of connecting section structures is more than two, the forging angle is difficult to grasp, the forging direction is required to be adjusted for many times, and the forging period is difficult to shorten.

Disclosure of Invention

The utility model aims to provide a valve body forging die blank which is more convenient in forging operation.

In order to achieve the above object, the present utility model provides a valve body forging die blank: the novel valve body forming die comprises a guide rail, a first movable die and a second movable die are movably connected to the guide rail, limiting plates are fixedly connected to the two ends of the guide rail, a second hydraulic cylinder is fixedly connected to the limiting plates, movable ends of the second hydraulic cylinders are respectively and fixedly connected with the first movable die and the second movable die, a central cavity and two end cavities are formed in opposite sides of the first movable die and the second movable die, the two end cavities are symmetrical with respect to the central cavity, and are communicated with the central cavity, the two end cavities are used for forming flanges at two ends of the valve body, the central cavity is used for forming a part of the valve body, which is located between the two flanges, to be directly formed into a shape required by the valve body, and after pre-extrusion, the special shape of the valve body is formed more easily.

Preferably, the upper surfaces of the first movable die and the second movable die are respectively provided with an upper end cavity, and the two upper end cavities can form a cylinder for forming a flange on the side surface of the valve body, so that the valve body is provided with three connecting end structures.

Preferably, the first movable mold and the second movable mold are provided with extension cavities between the respective central cavity and the upper cavity, and the central cavity is communicated with the upper cavity through the extension cavities to allow materials to enter the upper cavity.

Preferably, a first hydraulic cylinder is arranged above the first movable die and the second movable die, and is suitable for forming a blank in the upper end cavity, and forging a last connecting end structure.

Preferably, a bottom plate is arranged below the guide rail, a pair of vertical frames are fixedly connected to the upper surface of the bottom plate, a transverse plate is fixedly connected to the upper ends of the two vertical frames together, a cylinder barrel of the first hydraulic cylinder is fixedly connected with the transverse plate, the guide rail is located between the two vertical frames, and the movable die is allowed to move between the two vertical frames.

Preferably, the first movable mold is provided with a plunger rod located outside the mold cavity on one side of the second movable mold, the second movable mold is provided with slots corresponding to the positions and the numbers of the plunger rods on one side of the first movable mold, the extending directions of the plunger rod and the slots are parallel to the guide rail, and the plunger rod is suitable for forming a plug-in structure, so that the mold cavities on opposite sides of the two movable molds can be aligned.

Preferably, the lower surface of the first movable die is provided with a first chute, the lower surface of the second movable die is provided with a second chute, and the second chute and the guide rail are matched to form a sliding pair, so that the stability of the movable die during movement is improved.

As one preferable mode, the cross section shapes of the first sliding groove and the second sliding groove are the same as those of the guide rails, the two guide rails are T-shaped, the two guide rails are kept straight and parallel, stress is dispersed, and the stability of the movable die in relative movement is improved.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The two movable dies with similar structures are designed, the cavity is formed between the opposite surfaces of the movable dies, the metal piece is close to a specific shape in an extrusion preforming mode, the blank is forged and formed in a forging mode, the angle does not need to be adjusted for many times in the forging process, the fixed angle is kept to be continuously and repeatedly pressed, the specific shape can be obtained, the valve is suitable for a valve body with a plurality of connecting end structures, and the forging operation is simplified;

(2) The valve body forging device is simple in structure, high in working stability, convenient to maintain, low in use cost and high in forging output efficiency.

Drawings

FIG. 1 is a perspective view showing the overall construction of the valve body forging die blank;

FIG. 2 is a schematic perspective view of the valve body forging blank with the stand structure removed;

FIG. 3 is a perspective view of the valve body forging blank of FIG. 2 with the first movable die removed;

FIG. 4 is a schematic perspective view of a second movable die of the valve body forging blank;

fig. 5 is a schematic perspective view of a first movable die of the valve body forging die blank.

In the figure: 1. a cross plate; 2. a vertical frame; 3. a limiting plate; 4. a second hydraulic cylinder; 5. a first movable mold; 501. a first chute; 502. a rod; 6. a guide rail; 7. a second movable mold; 701. a second chute; 702. a slot; 571. a central cavity; 572. two end cavities; 573. extending the cavity; 574. an upper cavity; 8. a bottom plate; 9. a first hydraulic cylinder.

Detailed Description

The present utility model will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present utility model, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The valve body forging die blank shown in fig. 1-5 comprises a guide rail 6 with supporting and restraining functions, a first movable die 5 and a second movable die 7 are movably connected to the guide rail 6, the two movable dies can move relatively, a first chute 501 is formed in the lower surface of the first movable die 5, a second chute 701 is formed in the lower surface of the second movable die 7, the second chute 701 is suitable for being matched with the guide rail 6 to form a sliding pair, stability of the two movable dies during movement is improved, the first chute 501 and the second chute 701 are identical to the guide rail 6 in cross section shape and are T-shaped, the two movable dies can be prevented from being separated from the guide rail 6, the two guide rails 6 are kept straight and parallel, two chutes are formed in the lower surface of the same two movable dies and are used for dispersing stress, bending of the guide rail 6 is avoided due to stress concentration, and stability of the two guide rails 6 during movement can be better ensured.

Both ends of the guide rail 6 are fixedly connected with limiting plates 3, and are used for limiting the maximum movement stroke of the brake die on one hand; on the other hand, the limiting plate 3 is fixedly connected with a second hydraulic cylinder 4, movable ends of the two second hydraulic cylinders 4 are fixedly connected with a first movable die 5 and a second movable die 7 respectively, the movable ends are used for providing relative movement power for the two movable dies, meanwhile, relative extrusion thrust is provided for the two movable dies, a central cavity 571 and two end cavities 572 are formed in the opposite side faces of the first movable die 5 and the second movable die 7, the two end cavities 572 are symmetrical with respect to the center of the central cavity 571 and are communicated with the central cavity 571, the two end cavities 572 are used for forming flanges at two ends of a valve body, the central cavity 571 is used for forming a part of the valve body between the two flanges to form an integrated valve body structure, upper end cavities 574 are formed in the upper surfaces of the first movable die 5 and the second movable die 7, two upper end cavities 574 can form a cylinder shape for forming flanges on the side faces of the valve body, an extension cavity 573 is formed between the respective central cavity 571 and the upper end cavity 574, the central cavity 571 is communicated with the upper end cavity 573, when the upper end cavity is guaranteed to be communicated with the upper end cavity 574, the first movable die 5 and the upper end cavity 574 is provided with a continuous material to be in the same shape as the upper end of the valve body, and the upper end cavity 574 is provided with a first movable die cavity 574 and a material is arranged in the upper end cavity 9, and the upper end cavity is formed to be a material, and a material is formed.

The below of guide rail 6 is provided with bottom plate 8 for bear the weight of the downforce that guide rail 6 received, avoid guide rail 6 crooked, the upper surface fixedly connected with of bottom plate 8 is a pair of to the vertical plate 2, the common fixedly connected with diaphragm 1 of upper end of two vertical plates 2 forms a structure similar to the portal frame that allows the movable mould to pass through, the cylinder and the diaphragm 1 fixed connection of first pneumatic cylinder 9, guide rail 6 is located between two vertical plates 2, so when first pneumatic cylinder 9 applies pressure for the movable mould, the impact pressure that transmits for guide rail 6 will be dispersed by the bigger bottom plate 8 of area of contact.

The inserted link 502 outside the die cavity is arranged on one side of the first movable die 5 facing the second movable die 7, the slots 702 corresponding to the positions and the numbers of the inserted links 502 are arranged on one side of the second movable die 7 facing the first movable die 5, the extending directions of the inserted link 502 and the slots 702 are parallel to the guide rail 6, the inserted link 502 and the slots are suitable for forming an inserting structure, and part of the inserted link 502 and the slots 702 are always in a matched state in the process of separating the two movable dies and closing the dies, so that the die cavity dislocation between the two movable dies can be effectively prevented, and the surface flatness of a forged part is affected.

Working principle: before working, the two movable molds are in a mutually separated state, during working, a high-temperature solid metal piece is placed between the two movable molds, the metal piece is clamped by a clamping mechanism, the clamping mechanism is used for suspending the metal piece between the two movable molds through a through groove on the side face of the vertical frame 2, the two movable molds are driven by the second hydraulic cylinder 4 to slowly approach to the pressing force to enable the metal blank to approach to the shape of a mold cavity, after the separation, the metal piece approaches to the metal piece at a high speed and generates impact, due to the fact that the impact faces are in contact with the mold cavity of the opposite faces of the movable molds, the shape of the metal piece is gradually approaching to the mold cavity until the end faces of the two movable molds can be completely attached, the attaching state can be kept, the metal piece does not move any more, then the first hydraulic cylinder 9 is started, the metal in the upper end mold cavity 574 at the top of the movable mold is impacted and beaten, the material above the upper end mold cavity is gradually deformed and approaches to the inner wall of the upper end mold cavity 574 to become a specific shape, after the movable molds are mutually separated, and then the forging piece is released, and the subsequent cutting and polishing processing can be performed to form an internal cavity structure and a smooth structure of the end face.

The foregoing has outlined the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A valve body forging die blank, characterized in that: including guide rail (6), swing joint has first movable mould (5) and second movable mould (7) on guide rail (6), the both ends of guide rail (6) are all fixedly connected with limiting plate (3), fixedly connected with second pneumatic cylinder (4) on limiting plate (3), two the expansion end of second pneumatic cylinder (4) respectively with first movable mould (5) and second movable mould (7) fixed connection, central die cavity (571) and both ends die cavity (572) have all been seted up in opposite side to first movable mould (5) and second movable mould (7), both ends die cavity (572) have two, with central die cavity (571) central symmetry, and with central die cavity (571) intercommunication, both ends die cavity (572) are used for forming the flange at valve body both ends, central die cavity (571) are used for forming the valve body and are located the part between two flanges.

2. A valve body forging die blank as set forth in claim 1, wherein: the upper surfaces of the first movable die (5) and the second movable die (7) are respectively provided with an upper end cavity (574), and the two upper end cavities (574) can form a cylinder for forming a flange on the side surface of the valve body.

3. A valve body forging die blank as set forth in claim 2, wherein: the first movable die (5) and the second movable die (7) are provided with an extension cavity (573) between the central cavity (571) and the upper end cavity (574) respectively, and the central cavity (571) is communicated with the upper end cavity (574) through the extension cavity (573).

4. A valve body forging die blank as set forth in claim 3, wherein: a first hydraulic cylinder (9) is arranged above the first movable die (5) and the second movable die (7) and is suitable for forming the blank in the upper end cavity (574).

5. A valve body forging die as set forth in claim 4, wherein: the lower part of guide rail (6) is provided with bottom plate (8), the upper surface fixedly connected with of bottom plate (8) is a pair of riser (2), two the common fixedly connected with diaphragm (1) of upper end of riser (2), the cylinder of first pneumatic cylinder (9) with diaphragm (1) fixed connection, guide rail (6) are located two between riser (2).

6. A valve body forging die blank as set forth in any one of claims 1 to 5, wherein: the utility model discloses a plug-in structure, including first movable mould (5), second movable mould (7), first movable mould (5) are provided with inserted bar (502) outside the die cavity to one side of second movable mould (7), second movable mould (7) are provided with inserted bar (502) position and quantity corresponding slot (702), inserted bar (502) and the extending direction of slot (702) with guide rail (6) are parallel, are suitable for constituting the grafting structure.

7. A valve body forging die as set forth in claim 6, wherein: the lower surface of the first movable die (5) is provided with a first chute (501), and the lower surface of the second movable die (7) is provided with a second chute (701), which are both suitable for being matched with the guide rail (6) to form a sliding pair.

8. A valve body forging die blank as set forth in claim 7, wherein: the first sliding groove (501) and the second sliding groove (701) are identical to the guide rail (6) in cross section, the cross sections are T-shaped, the number of the guide rails (6) is two, and the two guide rails (6) are kept straight and parallel.