Tool die for large-specification forge piece

Abstract

The utility model discloses a tool die for a large-specification forge piece, and relates to the technical field of tool dies. The die comprises an inner die mechanism and a die holder mechanism, the die holder mechanism comprises a lower die holder, an upper die holder, a plurality of tensioning rods and a plurality of bolts, a lower die cavity is formed in the axis of the lower die holder, a lower conical slope is arranged at the top end of the lower die cavity, a plurality of oil cavities are annularly formed in the lower die holder, and rod penetrating openings extending to the top face of the lower die holder are formed in the top faces of the oil cavities. The oil cavity is provided with an oil inlet and an oil outlet which penetrate through the lower die base. The internal die mechanism is divided into a plurality of split dies, meanwhile, the die holder mechanism capable of being lifted and tensioned is designed, so that the internal die can be assembled and tightened, die replacement is facilitated, die replacement procedures are reduced, time consumption is reduced, working efficiency is improved, internal dies matched with forgings of different specifications or shapes are correspondingly and rapidly replaced, the application range is widened, and the die holder mechanism is suitable for being used for assembling and tightening the forgings of different specifications or shapes. Meanwhile, compared with a whole mold structure, the split mold has the characteristic of weight reduction, and hoisting and assembling of the split mold are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and mold technology, and in particular relates to a tooling and mold for large-size forgings. Background Technology

[0002] For forging large-sized forgings, the corresponding molds are large in size and difficult to move and position. When processing forgings of different sizes or types, molds need to be changed. However, the molds are too heavy and large, which is not conducive to operation, affects the mold change time and thus affects the processing efficiency, and increases the mold inventory cost. At the same time, when the whole mold is partially worn, it will force the entire mold to be scrapped, resulting in excessive maintenance costs.

[0003] If a modular mold design can solve the above problems, the difficulty lies in how to secure the modular mold and ensure strong fastening and fit between the modular components to avoid gaps or loosening. Similarly, it is necessary to ensure that there will be no excessive gaps under high-intensity vibration environments. Summary of the Invention

[0004] The purpose of this utility model is to provide a tooling mold for large-size forgings. By dividing the inner mold mechanism into multiple split molds, and through the design of a liftable and tensionable mold base mechanism, it can be used for the assembly and tightening of the inner mold, which is conducive to mold changing, reduces mold changing procedures and time, and improves work efficiency. It can quickly replace the matching inner mold for forgings of different specifications or shapes, thus increasing the applicability. At the same time, compared with the whole mold structure, the split mold has the characteristic of weight reduction, which facilitates the hoisting and assembly of the split mold.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a tooling mold for large-size forgings, including an inner mold mechanism and a mold base mechanism;

[0007] The mold base mechanism includes a lower mold base, an upper mold base, several tension rods, and several bolts;

[0008] The lower mold base has a lower mold cavity at its axis, and a lower conical slope at the top of the lower mold cavity. The lower mold base has several oil cavities arranged in a ring shape. The top surface of each oil cavity has a through-hole extending to the top surface of the lower mold base. The oil cavity has an oil inlet and an oil outlet that penetrate the lower mold base. A pressure sensor is installed inside the oil cavity.

[0009] The upper mold base is concentrically arranged directly above the lower mold base. The upper mold base has an upper mold cavity at its axial center and an upper conical slope at the bottom end. The upper mold base has several through holes arranged in a ring shape.

[0010] The top ends of several tension rods are fixed in a ring shape on the bottom surface of the lower mold base and are offset from several through holes. The bottom end of the tension rod passes through the rod opening and is fixed with a piston. The piston is slidably disposed in the oil cavity. A sliding seal is provided in the rod opening.

[0011] Several of the bolts are fixed to the top surface of the lower mold base, and the bolts pass through the through-hole and are threaded with nuts;

[0012] The inner mold mechanism includes several arc-shaped split molds, which are disposed through the lower mold cavity and the upper mold cavity and are attached to each other. The outer side of each split mold is provided with a V-shaped slope that fits into the lower and upper conical slopes.

[0013] Furthermore, one of the split molds has parallel flat cut surfaces on both sides, and the two split molds have side planes that fit with the flat cut surfaces.

[0014] Furthermore, the diameter of the lower cone slope decreases from top to bottom, while the diameter of the upper cone slope increases from bottom to top.

[0015] Furthermore, the bottom surface of the lower mold base is a plane, and the bottom surface of the lower mold base is lower than the bottom surface of the split mold.

[0016] Furthermore, the top and bottom of the oil cavity are provided with constricted sections, and the oil inlet and outlet are respectively connected to the constricted sections at the top and bottom of the oil cavity.

[0017] Furthermore, the top of the split mold is provided with a widening platform, and the widening platform is provided with a lifting port.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model divides the inner mold mechanism into multiple split molds. At the same time, the design of the mold base mechanism that can be lifted and tightened can be used for the assembly and tightening of the inner mold, which is conducive to mold changing, reduces mold changing procedures and time, improves work efficiency, and allows for quick replacement of matching inner molds for forgings of different specifications or shapes, thus increasing the applicability. In addition, compared with the whole mold structure, the split mold has the characteristic of weight reduction, which facilitates the hoisting and assembly of the split mold.

[0020] 2. This utility model, through the design of the oil cavity and tension rod, functions as a hydraulic cylinder, using hydraulic pressure for locking, which greatly improves the tightness between the upper and lower mold bases, enhances the stability of the inner mold, and provides a certain pre-tightening force. It also serves as a pre-fixing mechanism before bolt installation, facilitating operator operation. The arrangement of the bolts ensures a stable connection between the two, and if the bolts loosen due to forging vibration, pressure changes will occur in the oil cavity, allowing for immediate detection and preventing instability issues, thus ensuring the mold's performance.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a tooling mold for large-size forgings according to the present invention;

[0024] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 3 A schematic diagram of the mold base mechanism after removing the bolts;

[0026] Figure 4 This is a schematic diagram of the internal mold mechanism;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Lower mold base, 2-Upper mold base, 3-Tightening rod, 4-Bolt, 5-Separated mold, 101-Lower mold cavity, 102-Lower cone slope, 103-Oil cavity, 104-Pin rod opening, 105-Oil inlet, 106-Oil outlet, 107-Reduced section, 201-Upper mold cavity, 202-Upper cone slope, 203-Through opening, 301-Piston, 401-Nut, 501-V-shaped slope, 502-Flat cut surface, 503-Wideening platform. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-4 As shown, this utility model is a tooling mold for large-size forgings, including an inner mold mechanism and a mold base mechanism;

[0031] The mold base mechanism includes a lower mold base 1, an upper mold base 2, several tension rods 3, and several bolts 4;

[0032] The lower mold base 1 has a lower mold cavity 101 at its axis, and a lower cone slope 102 at the top of the lower mold cavity 101. The lower mold base 1 has a number of oil cavities 103 arranged in a ring shape. The top surface of the oil cavity 103 has a rod through port 104 extending to the top surface of the lower mold base 1. The oil cavity 103 has an oil inlet 105 and an oil outlet 106 that penetrate the lower mold base 1. A pressure sensor is installed inside the oil cavity 103.

[0033] The upper mold base 2 is concentrically positioned directly above the lower mold base 1. An upper mold cavity 201 is provided at the axis of the upper mold base 2. An upper cone slope 202 is provided at the bottom end of the upper mold cavity 201. Several through holes 203 are provided in a ring shape on the upper mold base 2.

[0034] Several tension rods 3 are fixed in a ring shape at the top end on the bottom surface of the lower mold base 1 and are misaligned with several through holes 203. The bottom end of the tension rod 3 passes through the rod opening 104 and is fixed with a piston 301. The piston 301 is slidably disposed in the oil cavity 103. A sliding seal is provided in the rod opening 104.

[0035] Several bolts 4 are fixed on the top surface of the lower mold base 1. The bolts 4 pass through the through-hole and are threaded with nuts 401.

[0036] The inner mold mechanism includes several arc-shaped split molds 5, which are arranged through the lower mold cavity 101 and the upper mold cavity 201 and are attached to each other. The outer side of the split mold 5 is provided with a V-shaped slope 501 that fits with the lower cone slope 102 and the upper cone slope 202.

[0037] Among them, such as Figure 1 and Figure 4 As shown, one of the split molds 5 has parallel flat cut surfaces 502 on both sides, and the two split molds 5 have side planes that fit with the flat cut surfaces 502.

[0038] Among them, such as Figure 2 As shown, the diameter of the lower cone slope 102 decreases from top to bottom, while the diameter of the upper cone slope 202 increases from bottom to top.

[0039] Among them, such as Figure 2 As shown, the bottom surface of the lower mold base 1 is a plane, and the bottom surface of the lower mold base 1 is lower than the bottom surface of the split mold 5.

[0040] Among them, such as Figure 2 As shown, the top and bottom of the oil cavity 103 are provided with constriction sections 107, and the oil inlet 105 and the oil outlet 106 are respectively connected to the constriction sections 107 at the top and bottom of the oil cavity 103.

[0041] Among them, such as Figure 1-2 and Figure 4 As shown, the top of the split mold 5 is provided with a widening platform 503, and the widening platform 503 is provided with a lifting port.

[0042] During installation, the upper mold base 2 and the lower mold base 1 are first secured by hydraulic means to ensure that the split mold 5 is completely clamped and secured, and then the nuts 401 on the bolts 4 are tightened.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tooling mold for large-size forgings, characterized in that: Includes the internal mold mechanism and the mold base mechanism; The mold base mechanism includes a lower mold base (1), an upper mold base (2), several tension rods (3) and several bolts (4); The lower mold base (1) has a lower mold cavity (101) at its axial center. The lower mold cavity (101) has a lower cone slope (102) at its top end. The lower mold base (1) has a number of oil cavities (103) arranged in a ring shape. The top surface of the oil cavity (103) has a rod through port (104) extending to the top surface of the lower mold base (1). The oil cavity (103) has an oil inlet (105) and an oil outlet (106) that penetrate the lower mold base (1). The oil cavity (103) is equipped with a pressure sensor. The upper mold base (2) is concentrically arranged directly above the lower mold base (1). The upper mold base (2) has an upper mold cavity (201) at its axial center. The upper mold cavity (201) has an upper conical slope (202) at its bottom end. The upper mold base (2) has several through holes (203) arranged in a ring shape. The top ends of several tension rods (3) are fixed in a ring shape on the bottom surface of the lower mold base (1) and are offset from several through holes (203). The bottom end of the tension rod (3) passes through the rod opening (104) and is fixed with a piston (301). The piston (301) is slidably disposed in the oil cavity (103). The rod opening (104) is provided with a sliding seal. Several of the bolts (4) are fixed on the top surface of the lower mold base (1), and the bolts (4) pass through the through-hole and are threaded with nuts (401). The inner mold mechanism includes several arc-shaped split molds (5), which are arranged through the lower mold cavity (101) and the upper mold cavity (201) and are attached to each other. The outer side of the split mold (5) is provided with a V-shaped slope (501) that fits with the lower cone slope (102) and the upper cone slope (202).

2. The tooling mold for large-size forgings according to claim 1, characterized in that, One of the split molds (5) has parallel flat cut surfaces (502) on both sides, and the two split molds (5) have side planes that fit with the flat cut surfaces (502).

3. The tooling mold for large-size forgings according to claim 1, characterized in that, The diameter of the lower cone slope (102) decreases from top to bottom, while the diameter of the upper cone slope (202) increases from bottom to top.

4. The tooling mold for large-size forgings according to claim 1, characterized in that, The bottom surface of the lower mold base (1) is a plane, and the bottom surface of the lower mold base (1) is lower than the bottom surface of the split mold (5).

5. A tooling mold for large-size forgings according to claim 1, characterized in that, The oil cavity (103) is provided with a constriction section (107) at both the top and bottom. The oil inlet (105) and oil outlet (106) are respectively connected to the constriction section (107) at the top and bottom of the oil cavity (103).

6. The tooling mold for large-size forgings according to claim 1, characterized in that, The top of the split mold (5) is provided with a widening platform (503), and the widening platform (503) is provided with a lifting port.

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