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CN-224209055-U - Frock mould for large-size forging

CN224209055UCN 224209055 UCN224209055 UCN 224209055UCN-224209055-U

Abstract

The utility model discloses a tooling die for large-specification forgings, and relates to the technical field of tooling dies. The utility model comprises an internal mold mechanism and a mold base mechanism, wherein the mold base mechanism comprises a lower mold base, an upper mold base, a plurality of tensioning rods and a plurality of bolts, a lower mold cavity is arranged at the axis of the lower mold base, a lower taper slope is arranged at the top end of the lower mold cavity, a plurality of oil cavities are annularly arranged in the lower mold base, rod penetrating openings extending to the top surface of the lower mold base are arranged on the top surface of the oil cavities, and an oil inlet and an oil outlet penetrating through the lower mold base are arranged on the oil cavities. According to the utility model, the internal mold mechanism is divided into a plurality of split molds, and meanwhile, the design of the mold seat mechanism capable of lifting and tensioning is used for assembling and tightening the internal molds, so that the mold replacement is facilitated, the mold replacement procedure and time consumption are reduced, the working efficiency is improved, the corresponding and quick replacement of the matched internal molds for forgings with different specifications or shapes is realized, the application range is improved, and meanwhile, compared with the whole mold structure, the split molds have the characteristic of weight reduction, and the lifting and the assembly of the split molds are facilitated.

Inventors

  • ZHAO DONG
  • ZHAO YONG
  • BIAN FENG

Assignees

  • 江阴市中岳机锻有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (6)

  1. 1. The tooling die for the large-specification forging is characterized by comprising an inner die mechanism and a die holder mechanism; The die holder mechanism comprises a lower die holder (1), an upper die holder (2), a plurality of tensioning rods (3) and a plurality of bolts (4); The lower die comprises a lower die holder (1), and is characterized in that a lower die cavity (101) is arranged at the axis of the lower die holder (1), a lower taper slope (102) is arranged at the top end of the lower die cavity (101), a plurality of oil cavities (103) are annularly arranged in the lower die holder (1), rod penetrating openings (104) extending to the top surface of the lower die holder (1) are formed in the top surfaces of the oil cavities (103), an oil inlet (105) and an oil outlet (106) penetrating through the lower die holder (1) are formed in the oil cavities (103), and a pressure sensor is arranged in the oil cavities (103); The upper die holder (2) is concentrically arranged right above the lower die holder (1), an upper die cavity (201) is arranged at the axis of the upper die holder (2), an upper taper slope (202) is arranged at the bottom end of the upper die cavity (201), and a plurality of through holes (203) are annularly formed in the upper die holder (2); the top ends of the tensioning rods (3) are annularly fixed on the bottom surface of the lower die holder (1) and are staggered with the through holes (203), the bottom ends of the tensioning rods (3) penetrate through the rod penetrating holes (104) and are fixedly provided with pistons (301), the pistons (301) are slidably arranged in the oil cavities (103), and sliding seals are arranged in the rod penetrating holes (104); The bolts (4) are fixed on the top surface of the lower die holder (1), and the bolts (4) penetrate through the through openings and are connected with nuts (401) in a threaded manner; the internal mold mechanism comprises a plurality of split molds (5) with arc structures, the split molds (5) are arranged in the lower mold cavity (101) and the upper mold cavity (201) in a penetrating mode and are attached to each other, and V-shaped slopes (501) attached to the lower taper slopes (102) and the upper taper slopes (202) are arranged on the outer sides of the split molds (5).
  2. 2. The tooling die for large-size forgings according to claim 1, wherein two side surfaces of one split die (5) are provided with mutually parallel flat cutting surfaces (502), and two split dies (5) are provided with side planes attached to the flat cutting surfaces (502).
  3. 3. The tooling die for large-size forgings according to claim 1, wherein the caliber of the lower tapered slope (102) is sequentially reduced from top to bottom, and the caliber of the upper tapered slope (202) is sequentially increased from bottom to top.
  4. 4. The tooling die for large-size forgings according to claim 1, wherein the bottom surface of the lower die holder (1) is a plane, and the bottom surface of the lower die holder (1) is lower than the bottom surface of the split die (5).
  5. 5. The tooling die for the large-size forging according to claim 1, wherein the top end and the bottom end of the oil cavity (103) are respectively provided with a necking section (107), and the oil inlet (105) and the oil outlet (106) are respectively connected with the necking sections (107) at the top end and the bottom end of the oil cavity (103).
  6. 6. The tooling die for large-size forgings according to claim 1, wherein a widening table (503) is arranged at the top end of the split die (5), and a hoisting opening is formed in the widening table (503).

Description

Frock mould for large-size forging Technical Field The utility model belongs to the technical field of tooling molds, and particularly relates to a tooling mold for a large-specification forging. Background The forging processing of large-specification forgings is relatively large in mould specification, difficult to move and position, and when forgings of different specifications or types are processed, the moulds are required to be replaced, and the mould is too heavy and too large, so that the operation is not facilitated, the mould replacement time is influenced, the processing efficiency is influenced, a certain mould inventory cost is increased, meanwhile, the whole mould is forced to be scrapped when the whole mould is worn locally, and the maintenance cost is too high. If the split type die is designed, the problem can be solved, however, the difficulty is how to fasten and fix the split type die, the tightness is high, the fit degree between the split type die is ensured, the problem of gap occurrence or looseness is avoided, and the problem that the gap is overlarge under the high-strength vibration environment is also required to be ensured. Disclosure of Invention The utility model aims to provide a tool die for large-specification forgings, which is characterized in that an internal die mechanism is divided into a plurality of split dies, meanwhile, the tool die can be used for assembling and tightening the internal dies through the design of a die holder mechanism capable of lifting and tensioning, die replacement is facilitated, die replacement procedures and time consumption are reduced, the working efficiency is improved, the corresponding and rapid replacement of the internal dies matched with the forgings with different specifications or shapes is realized, the application range is improved, and meanwhile, compared with a whole die structure, the split dies have the characteristic of weight reduction, and the split dies are convenient to hoist and assemble. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a tooling die for a large-specification forging, which 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 tension rods and a plurality of bolts; The lower die seat is characterized in that a lower die cavity is arranged at the axis of the lower die seat, a lower taper slope is arranged at the top end of the lower die cavity, a plurality of oil cavities are annularly arranged in the lower die seat, rod penetrating openings extending to the top surface of the lower die seat are formed in the top surface of each oil cavity, an oil inlet and an oil outlet penetrating through the lower die seat are formed in each oil cavity, and a pressure sensor is arranged in each oil cavity; The upper die holder is concentrically arranged right above the lower die holder, an upper die cavity is arranged at the axis of the upper die holder, an upper taper slope is arranged at the bottom end of the upper die cavity, and a plurality of through holes are annularly formed in the upper die holder; The top ends of the tensioning rods are annularly fixed on the bottom surface of the lower die holder and are staggered with the through holes, the bottom ends of the tensioning rods penetrate through the rod penetrating holes and are fixedly provided with pistons, the pistons are arranged in the oil cavity in a sliding mode, and sliding seals are arranged in the rod penetrating holes; The bolts are fixed on the top surface of the lower die holder, penetrate through the through openings and are in threaded connection with nuts; The internal mold mechanism comprises a plurality of split molds with arc structures, the split molds penetrate through the lower mold cavity and the upper mold cavity and are in one-to-one adhesion, and V-shaped slopes which are in adhesion with the lower taper slopes and the upper taper slopes are arranged on the outer sides of the split molds. Further, two side surfaces of one split die are provided with parallel plane cutting surfaces, and two split dies are provided with side planes attached to the plane cutting surfaces. Further, the caliber of the lower tapered slope is sequentially reduced from top to bottom, and the caliber of the upper tapered slope is sequentially increased from bottom to top. Further, the bottom surface of the lower die holder is a plane, and the bottom surface of the lower die holder is lower than the bottom surface of the split die. Further, the top end and the bottom end of the oil cavity are respectively provided with a necking section, and the oil inlet and the oil outlet are respectively connected with the necking sections at the top end and the bottom end of the oil cavity. Further, a widening table is arranged at the top end of the split die, and a hoisting opening is formed