CN219484085U - Local forming die of die forging - Google Patents
Local forming die of die forging Download PDFInfo
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- CN219484085U CN219484085U CN202320502448.8U CN202320502448U CN219484085U CN 219484085 U CN219484085 U CN 219484085U CN 202320502448 U CN202320502448 U CN 202320502448U CN 219484085 U CN219484085 U CN 219484085U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model discloses a local forming die for die forgings, which belongs to the technical field of die forging processes and comprises a lower die sleeve, wherein nitrogen springs are symmetrically arranged in the lower die sleeve, a lower die core is arranged at the upper end of each nitrogen spring, a first forming area upper die is arranged at the upper end of each lower die core, a left insert I is arranged at one side of the bottom end of each first forming area upper die, a right insert I is arranged at the other side of the bottom end of each first forming area upper die, a left upper die mounting plate is arranged at one side of each first forming area upper die, a left upper die of each second forming area is arranged at the bottom end of each left upper die mounting plate, a left bolt is arranged between each left upper die of each second forming area and each left upper die mounting plate, a left locating pin is arranged in each left upper die mounting plate, and a right upper die mounting plate is arranged at the other side of each first forming area upper die; the utility model can form the die forging with sufficient deformation and excellent tissue performance on a small amount of fire on common die forging equipment with smaller tonnage.
Description
Technical Field
The utility model belongs to the technical field of die forging processes, and particularly relates to a local forming die for a die forging piece.
Background
In the context of light weight and heavy weight equipment, many critical components are designed as one integral part, resulting in such parts having larger dimensional planes, smaller thickness dimensions and more complex structures. The working environment of the parts is bad, the fatigue life index is high, and the streamline of the parts is required to be kept complete. The blanks of the parts are mostly manufactured from high-strength materials by adopting a die forging method.
The prior art has the following problems:
1. when forging equipment with large tonnage is adopted to manufacture the forging piece, equipment investment is large, and forging piece cost is high; the die works under extremely high pressure, so that the die is easy to wear, collapse and other defects, and the service life is low;
2. when forging equipment with 50-80% of forming force is adopted to manufacture the forgings, the deformation of the forgings along with the increase of the firing number is smaller and smaller, the batches are uneven, the consistency of the quality of the forging batches is poor, and the probability of waste products is high; the die works under the limiting pressure of equipment at the final stage of each fire forming, and the service life of the die is lower;
3. if special local die forging forming equipment is adopted for carrying out the local forming of the forging piece, the special local die forging forming equipment is immature in technology, huge in investment, high in maintenance cost and extremely high in forging piece cost; and the production process and the die are complex, and the requirements on process designers are high.
Disclosure of Invention
To solve the problems set forth in the background art. The utility model provides a die forging local forming die which has the characteristics of good die forging forming effect, excellent tissue performance and low production cost.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a local forming die of die forging, including the lower die sleeve, the inside symmetry of lower die sleeve is provided with the nitrogen spring, the upper end of nitrogen spring is provided with down the mold core, the upper end of lower mold core is provided with first shaping district upper die, bottom one side of first shaping district upper die is provided with left insert first, the bottom opposite side of first shaping district upper die is provided with right insert first, one side of first shaping district upper die is provided with left upper die mounting plate, the bottom of left upper die mounting plate is provided with second shaping district upper left die, be provided with left bolt between second shaping district upper left die and the upper left die mounting plate, the inside of left upper die mounting plate is provided with left locating pin, the opposite side of first shaping district upper die is provided with right upper die mounting plate, the bottom of right upper die mounting plate is provided with second shaping district upper right die, be provided with right bolt between second shaping district upper right die and the upper right die mounting plate, the inside of right upper die mounting plate is provided with right locating pin, bottom one side of first shaping district upper die still can be provided with left insert second, the bottom of first shaping district upper die can be provided with right insert second.
Preferably; a left backing plate can be arranged between the left upper die and the left upper die mounting plate of the second forming area, and a right backing plate can be arranged between the right upper die and the right upper die mounting plate of the second forming area.
Preferably; the upper die of the first forming area comprises an upper die body of the first forming area, a dovetail groove and an upper die cavity, wherein the upper die cavity is arranged in the middle of the bottom end of the upper die body of the first forming area, and the dovetail grooves are symmetrically arranged on two sides of the bottom end of the upper die body of the first forming area.
Preferably; the left insert comprises a dovetail block, an insert body, an insert technological inclined plane and an insert cavity, wherein the dovetail block is arranged at the top end of the insert body, the insert technological inclined plane is arranged at one side of the bottom end of the insert body, and the insert cavity is arranged at the other side of the bottom end of the insert body.
Preferably; the structure of the right insert is the same as that of the left insert, and the structure of the right insert is the same as that of the left insert.
Preferably; the bottom ends of the left insert II and the right insert II are all arranged to be insert cavities.
A local forming process of a die forging comprises the following steps:
(1) the first left insert and the first right insert are respectively arranged in a sliding manner along a dovetail groove in the upper die of the first forming area, so that the local forming die is assembled into a first state, then the local forming die is preheated to the temperature required by the process, and then a forge piece blank heated according to the process requirement is discharged out of the furnace and coated with a high-temperature-resistant heat-insulating material and then is placed at the upper end of the lower die core;
(2) the first state die assembly of the local forming die extrudes the forging blank until the lower die core is attached to the lower die sleeve, in the die assembly process, the upper die of the first forming area, the first left insert and the first right insert are attached to the middle part of the forging blank to enable the forging blank to be formed into the first forming area locally, meanwhile, the left upper die of the second forming area and the right upper die of the second forming area are in a free sliding state, and when contacting the forging blank, the blocking force moves upwards along the locating pin and is attached to the bottom ends of the left upper die mounting plate and the right upper die mounting plate, so that the forging blank is deformed only in the first forming area, and the forging blank is a primary machined forging after primary machining;
(3) the partial forming die is divided into dies, the primary processing forging is not processed any more, then the left insert I and the right insert I are detached, the left insert II and the right insert II are respectively installed at corresponding positions, meanwhile, a left base plate is inserted between the left upper die and the left upper die mounting plate of the second forming area and is fixed, a right base plate is inserted between the right upper die and the right upper die mounting plate of the second forming area and is fixed, and the dies are assembled into a second state;
(4) the first state die of the local forming die is closed to form the primary processing forging, the bottom ends of the left upper die of the second forming area and the right upper die of the second forming area are abutted against the upper end of the primary processing forging, when the lower die core is attached to the lower die sleeve, the primary processing forging is extruded by the left insert II and the right insert II to deform, and the formed forging can be obtained after die separation;
(5) when more than two forming areas are needed for the forging, the upper dies of the forming areas except the forming area on the outermost side are provided with two types of inserts, one type of insert is provided with a process inclined plane, the other type of insert is not provided with a process inclined plane, the blank is formed into the forging with the first forming area and the second forming area, the second forming area and the blank on the outer side are provided with process inclined planes, and then the steps (2) to (4) are repeated until the complete forging is formed.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the die is divided into a plurality of forming areas, the heated blank is placed in the middle area of the installed forging die to be formed firstly, after the die returns, part of the forging die assembly is replaced, and then the die is formed step by step from the middle to the outer side until the whole forging piece is formed, so that the large-size die forging piece with full deformation, excellent tissue performance and good batch stability can be formed on common die forging equipment with smaller tonnage by a small amount of fire, the equipment has the advantages of low use cost, high working efficiency, long service life of the die, high use strength and difficult damage.
Drawings
FIG. 1 is a schematic view of a partial forming die according to the present utility model in a first state;
FIG. 2 is a schematic diagram showing a first state of the mold closing of the partial mold according to the present utility model;
FIG. 3 is a schematic view of the structure of the as-machined forging of the present utility model;
FIG. 4 is a top view of the structure of the as-machined forging of the present utility model;
FIG. 5 is a schematic view of a second state of the partial forming mold of the present utility model;
FIG. 6 is a schematic view of a partial forming mold in a second state according to the present utility model;
FIG. 7 is a schematic diagram showing the closing of a partial mold in a second state according to the present utility model;
FIG. 8 is a schematic view of the structure of a formed forging of the present utility model;
FIG. 9 is a schematic view of the upper die structure of the first forming section of the present utility model;
FIG. 10 is a bottom view of the first forming section upper die structure of the present utility model;
FIG. 11 is a schematic view of a left insert of the present utility model;
fig. 12 is a bottom view of a left insert of the present utility model.
In the figure: 1. a first forming zone upper die; 110. a first forming zone upper die body; 120. a dovetail groove; 130. an upper mold cavity; 2. upper left die of the second forming zone; 3. upper right die of the second forming zone; 4. an upper left die mounting plate; 5. a right upper die mounting plate; 6. a left bolt; 7. a right bolt; 8. a left locating pin; 9. a right locating pin; 10. a left insert I; 101. dovetail blocks; 102. an insert body; 103. an insert process inclined plane; 104. an insert cavity; 11. a right insert I; 12. a left insert II; 13. a right insert II; 14. a lower die sleeve; 15. a lower mold core; 16. a nitrogen spring; 17. a left backing plate; 18. a right backing plate; 19. and (5) primarily processing the forging.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-12, the present utility model provides the following technical solutions: the utility model provides a local forming die of die forging, including lower die sleeve 14, the inside symmetry of lower die sleeve 14 is provided with nitrogen spring 16, the upper end of nitrogen spring 16 is provided with lower mold core 15, the upper end of lower mold core 15 is provided with first shaping district upper die 1, the bottom one side of first shaping district upper die 1 is provided with left insert one 10, the bottom opposite side of first shaping district upper die 1 is provided with right insert one 11, one side of first shaping district upper die 1 is provided with upper left die mounting plate 4, the bottom of upper left die mounting plate 4 is provided with upper left die 2 of second shaping district, be provided with left bolt 6 between upper left die 2 of second shaping district and the upper left die mounting plate 4, the inside of upper left die mounting plate 4 is provided with left locating pin 8, the opposite side of first shaping district upper die 1 is provided with upper right die mounting plate 5, the bottom of upper right die mounting plate 5 is provided with second shaping district upper right die 3, be provided with right bolt 7 between upper right die mounting plate 5 of second shaping district upper right die 3 and the upper right die mounting plate, the inside of upper right die 5 is provided with right locating pin 9, the bottom of first shaping district upper right die 1 can be provided with the bottom of second shaping district upper right die mounting plate 13.
Specifically, a left backing plate 17 may be disposed between the second forming zone upper left die 2 and the upper left die mounting plate 4, and a right backing plate 18 may be disposed between the second forming zone upper right die 3 and the upper right die mounting plate 5.
By adopting the technical scheme, the upper left die 2 of the second forming area and the upper right die 3 of the second forming area are ensured to be stably and firmly installed, and the forming stability of the forge piece is improved.
Specifically, the first forming area upper die 1 includes a first forming area upper die body 110, a dovetail groove 120 and an upper die cavity 130, wherein the upper die cavity 130 is provided in the middle of the bottom end of the first forming area upper die body 110, and the dovetail grooves 120 are symmetrically provided on two sides of the bottom end of the first forming area upper die body 110.
Through adopting above-mentioned technical scheme, guarantee that left side insert 10, right side insert 11, left side insert two 12 and right side insert two 13 install and handle the knot, guarantee the shaping effect of forging preliminary working.
Specifically, the left insert 10 includes a dovetail block 101, an insert body 102, an insert process inclined plane 103 and an insert cavity 104, wherein the top end of the insert body 102 is provided with the dovetail block 101, one side of the bottom end of the insert body 102 is provided with the insert process inclined plane 103, and the other side of the bottom end of the insert body 102 is provided with the insert cavity 104
By adopting the technical scheme, the excessive smoothness of the primary processing forging 19 is ensured, and the quality of secondary processing is improved.
Specifically, the first right insert 11 has the same structure as the first left insert 10, and the second right insert 13 has the same structure as the second left insert 12.
By adopting the technical scheme, the forming effect of the forge piece is ensured, and the use quality of the insert is improved.
Specifically, the bottom ends of the left insert two 12 and the right insert two 13 are all provided as an insert cavity 104.
By adopting the technical scheme, the forming effect of secondary machining of the primary machined forging 19 is improved.
The working principle and the using flow of the utility model are as follows: when the forging is partially formed, the left insert I10 and the right insert I11 are respectively installed in a sliding manner along the dovetail groove 120 in the upper die 1 of the first forming area, so that the partial forming die is assembled into a first state, then the partial forming die is preheated to the temperature required by the process, and then a forging blank heated according to the process requirement is discharged from a furnace and coated with a high-temperature-resistant heat-insulating material and then is placed at the upper end of the lower die core 15;
the first state die assembly of the local forming die extrudes the forging blank until the lower die core 15 is attached to the lower die sleeve 14, in the die assembly process, the upper die 1, the first left insert 10 and the first right insert 11 of the first forming area are attached to the middle part of the forging blank to form the first forming area locally, meanwhile, as the upper left die 2 and the upper right die 3 of the second forming area are in a free sliding state, the blocking force moves upwards along a locating pin when contacting the forging blank and is attached to the bottom ends of the upper left die mounting plate 4 and the upper right die mounting plate 5, so that the forging blank is deformed only in the first forming area, and the forging blank is a primary machined forging 19 after primary machining;
the partial forming die is divided into dies and does not process the primary processing forging 19 any more, then the left insert I10 and the right insert I11 are disassembled, the left insert II 12 and the right insert II 13 are respectively arranged at corresponding positions, meanwhile, the left backing plate 17 is inserted between the left upper die 2 and the left upper die mounting plate 4 of the second forming area and is fixed, the right backing plate 18 is inserted between the right upper die 3 and the right upper die mounting plate 5 of the second forming area and is fixed, and the dies are assembled into a second state;
the primary forging 19 is molded by the second state die assembly of the local molding die, the bottom ends of the left upper die 2 of the second molding area and the right upper die 3 of the second molding area are abutted against the upper end of the primary forging 19, when the lower die core 15 is attached to the lower die sleeve 14, the primary forging 19 is extruded by the left insert II 12 and the right insert II 13 to deform, and the molded forging can be obtained after die separation;
when more than two forming areas are needed for the forging, the upper dies of the forming areas except the forming area on the outermost side are provided with two types of inserts, one type of insert is provided with a process inclined plane, the other type of insert is not provided with a process inclined plane, the blank is formed into the forging with the first forming area and the second forming area, the second forming area and the blank on the outer side are provided with process inclined planes, and then the steps (2) to (4) are repeated until the complete forging is formed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a local forming die of die forging, includes lower die sleeve, its characterized in that: the nitrogen gas spring is symmetrically arranged in the lower die sleeve, the lower die core is arranged at the upper end of the nitrogen gas spring, the first forming area upper die is arranged at the upper end of the lower die core, the first left insert is arranged on one side of the bottom end of the first forming area upper die, the first right insert is arranged on the other side of the bottom end of the first forming area upper die, the left upper die mounting plate is arranged on one side of the first forming area upper die, the second forming area left upper die is arranged at the bottom end of the left upper die mounting plate, a left bolt is arranged between the second forming area left upper die and the left upper die mounting plate, a left locating pin is arranged in the left upper die mounting plate, the right upper die mounting plate is arranged on the other side of the first forming area upper die, the right upper die is arranged at the bottom end of the right upper die mounting plate, the right upper die is arranged between the second forming area right upper die and the right upper die mounting plate, the right locating pin is arranged in the right upper die mounting plate, the left insert second left insert is also arranged on one side of the bottom end of the first forming area upper die, and the right insert second is arranged on the other side of the bottom end of the first forming area upper die.
2. The die forging partial forming die as recited in claim 1, wherein: a left backing plate can be arranged between the left upper die and the left upper die mounting plate of the second forming area, and a right backing plate can be arranged between the right upper die and the right upper die mounting plate of the second forming area.
3. The die forging partial forming die as recited in claim 1, wherein: the upper die of the first forming area comprises an upper die body of the first forming area, a dovetail groove and an upper die cavity, wherein the upper die cavity is arranged in the middle of the bottom end of the upper die body of the first forming area, and the dovetail grooves are symmetrically arranged on two sides of the bottom end of the upper die body of the first forming area.
4. The die forging partial forming die as recited in claim 1, wherein: the left insert comprises a dovetail block, an insert body, an insert technological inclined plane and an insert cavity, wherein the dovetail block is arranged at the top end of the insert body, the insert technological inclined plane is arranged at one side of the bottom end of the insert body, and the insert cavity is arranged at the other side of the bottom end of the insert body.
5. The die forging partial forming die as recited in claim 1, wherein: the structure of the right insert is the same as that of the left insert, and the structure of the right insert is the same as that of the left insert.
6. The die forging partial forming die as recited in claim 1, wherein: the bottom ends of the left insert II and the right insert II are all arranged to be insert cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320502448.8U CN219484085U (en) | 2023-03-14 | 2023-03-14 | Local forming die of die forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320502448.8U CN219484085U (en) | 2023-03-14 | 2023-03-14 | Local forming die of die forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219484085U true CN219484085U (en) | 2023-08-08 |
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ID=87481864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320502448.8U Active CN219484085U (en) | 2023-03-14 | 2023-03-14 | Local forming die of die forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219484085U (en) |
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2023
- 2023-03-14 CN CN202320502448.8U patent/CN219484085U/en active Active
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