CN108580779B - Open die forging mould - Google Patents
Open die forging mould Download PDFInfo
- Publication number
- CN108580779B CN108580779B CN201810844855.0A CN201810844855A CN108580779B CN 108580779 B CN108580779 B CN 108580779B CN 201810844855 A CN201810844855 A CN 201810844855A CN 108580779 B CN108580779 B CN 108580779B
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- CN
- China
- Prior art keywords
- die
- forging
- forming part
- round table
- closed
- Prior art date
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- 238000005242 forging Methods 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/022—Open die forging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention provides an open die forging die, which comprises an upper die and a lower die, wherein the upper die and the lower die are respectively provided with an upper part and a lower part of a pre-forging cavity correspondingly, and the open die forging die is characterized in that: the pre-forging cavity is provided with a round table forming part, and the high round table forming part is positioned at one end of the pre-forging cavity; the lower die is provided with closed sealing blocks at two sides of the round table forming part along the width direction of the die, and the closed sealing blocks are provided with round corners at corners close to the inner side of the lower die; the middle parts of the two closed sealing blocks, which are close to one side of the round table forming part, are respectively recessed inwards to form a material blocking wall; the upper die is provided with a closed notch for plugging the closed sealing block; the side surface of the closed type notch, which is close to the round table forming part, is provided with a material blocking protrusion, the surface of the material blocking protrusion is attached to the material blocking wall, and the whole closed type sealing block is attached to the whole closed type notch. The open die forging die realizes the forming of the high-oil nozzle by adopting a partially closed structure.
Description
Technical Field
The invention belongs to the field of die forging, and particularly relates to an open die forging die.
Background
With the implementation of the high-pressure common rail technology, a high-pressure common rail shaft needs to adopt a high oil nozzle, namely an oil nozzle with a height exceeding 1.5 times of the diameter.
In the common rail shaft forging forming, the conventional open die forging die is utilized, the forming requirement of the oil nozzle cannot be met, and even if a resistance groove and a resistance groove are applied, the highest oil nozzle forming cannot be met. The main reason for influencing forging forming is that the metal flowing out of the die cavity cannot fill the die cavity well, which is the result of the law of minimum resistance, and the increased resistance of the resistance grooves and the resistance grooves still cannot meet the requirement of the resistance of the die filling.
And closed die forging is adopted, so that the bottom cost blank manufacturing cannot be solved because the fall of the material quantity of different parts is too large.
Disclosure of Invention
In view of this, the present invention aims to propose an open die forging die to similarly manufacture a die forging of a high-oil nozzle.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the utility model provides an open die forging mould, includes mould and lower mould, goes up upper and lower two parts that correspond respectively and be equipped with the pre-forging die cavity on mould and the lower mould, its characterized in that: the pre-forging cavity is provided with a round table forming part, and the high round table forming part is positioned at one end of the pre-forging cavity; the lower die is provided with closed sealing blocks at two sides of the round table forming part along the width direction of the die, and the closed sealing blocks are provided with round corners at corners close to the inner side of the lower die; the middle parts of the two closed sealing blocks, which are close to one side of the round table forming part, are respectively recessed inwards to form a material blocking wall; the upper die is provided with a closed notch for plugging the closed sealing block; the side surface of the closed type notch, which is close to the round table forming part, is provided with a material blocking protrusion, the surface of the material blocking protrusion is attached to the material blocking wall, and the whole closed type sealing block is attached to the whole closed type notch.
Further, the material blocking wall comprises a first cambered surface, a connecting surface and a second cambered surface, wherein the first cambered surface is positioned at the round corner of the top of the inner side of the closed sealing block, the second cambered surface is positioned at the round corner of the bottom of the inner side of the closed sealing block, and the connecting surface is positioned on one side of the closed sealing block, which is close to the round table forming part, and vertically extends to the upper edge of the second cambered surface from the lower edge of the first cambered surface.
Further, the upper die is provided with an exhaust channel at the highest point of the round table forming part, and the exhaust channel vertically extends to the top surface of the upper die.
Further, the lower die is provided with an exhaust hole at the lowest point of the pre-forging cavity, and the exhaust hole extends to the bottom of the lower die.
Further, the vent hole extends downwards along a straight line in an inclined way to the lower die edge closest to the lowest point of the pre-forging cavity, and a vent groove communicated with the vent hole is formed in the lower die edge.
Further, a flash bin is formed between the lower die and the upper die, and the flash bin is positioned at one side close to the round table forming part along the length direction of the die.
Further, two locking blocks are formed at one end of the lower die, which is far away from the round table forming part; the two locking blocks are respectively positioned at two sides of the pre-forging cavity along the width direction of the die; the upper die is provided with a locking groove which is used for the locking block to be inserted and attached with the locking block.
Further, two ejection through holes are formed in the lower die between the pre-forging cavities, and the two ejection through holes are arranged beside the pre-forging cavities along the length direction of the die.
Compared with the prior art, the open die forging die has the following advantages:
(1) According to the open die forging die, the whole closed sealing block is attached to the whole closed notch, so that the round table forming part for forming the high-oil nozzle is closed, the resistance can be infinitely increased, and the high-oil nozzle can be filled.
(2) According to the open die forging die, the influence of air on molding is reduced by utilizing the exhaust channel, and molding of the high-oil nozzle is ensured.
(3) The open die forging die disclosed by the invention ensures redundant metal extrusion by the flash bin.
(4) The open die forging die disclosed by the invention has the functions of positioning and guiding by the mutual matching of the locking groove and the locking block, and is convenient for the upper die and the lower die to be clamped.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of an open die forging die according to an embodiment of the present invention;
FIG. 2 is a schematic view of a lower die according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2;
fig. 4 is a schematic diagram of an upper die according to an embodiment of the invention.
Reference numerals illustrate:
1. an upper die; 11. a closed recess; 111. a material blocking protrusion; 12. a latch groove; 13. an exhaust passage; 2. a lower die; 21. a closed sealing block; 22. a locking block; 23. an exhaust hole; 24. an exhaust groove; 3. a pre-forging die cavity; 31. a round table forming part; 4. a final forging cavity; 5. ejecting the through hole; 6. a material blocking wall; 61. a first cambered surface; 62. a connection surface; 63. a second cambered surface; 7. and (5) a flash bin.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
An open die forging die is shown in fig. 1, and comprises an upper die 1 and a lower die 2, wherein the upper die 1 and the lower die 2 are respectively provided with an upper part and a lower part of a pre-forging cavity 3 and a final-forging cavity 4 correspondingly.
The lower die 2 is provided with two groups of ejection through holes 5 between the pre-forging cavity 3 and the finish forging cavity 4, each group is provided with two ejection through holes 5, the two ejection through holes 5 of one group are arranged beside the pre-forging cavity 3 along the length direction of the die, and the two ejection through holes 5 of the other group are arranged beside the finish forging cavity 4 along the length direction of the die.
Referring to fig. 2 and 4, the pre-forging die cavity 3 is formed with a truncated cone forming portion 31 for forming a high-oil nozzle. The high round table forming part 31 is positioned at one end of the pre-forging cavity 3.
The lower die 2 has closed seal blocks 21 formed on both sides of the round table forming portion 31 in the die width direction. The closed sealing block 21 is rectangular, and round corners are formed at corners close to the inner side of the lower die 2; the two closed sealing blocks 21 are respectively recessed inwards at the middle part of one side close to the round table forming part 31, and a material blocking wall 6 is formed. As shown in fig. 3, the material blocking wall 6 includes a first arc surface 61, a connecting surface 62 and a second arc surface 63, the first arc surface 61 is located at a rounded corner at the top of the inner side of the closed sealing block 21, the second arc surface 63 is located at a rounded corner at the bottom of the inner side of the closed sealing block 21, and the connecting surface 62 is located at one side of the closed sealing block 21 close to the round table forming part 31 and vertically extends from the lower edge of the first arc surface 61 to the upper edge of the second arc surface 63. The upper die 1 is provided with a closed notch 11, and the closed notch 11 is used for plugging a closed sealing block 21; the closed type notch 11 is provided with a material blocking protrusion 111 on the side surface close to the round table forming part 31, and the surface of the material blocking protrusion 111 is attached to the material blocking wall 6, so that the whole closed type sealing block 21 is attached to the whole closed type notch 11 for sealing.
The lower die 2 is provided with two locking blocks 22 at one end far away from the round table forming part 31; two lock blocks 22 are respectively located at both sides of the pre-forging cavity 3 in the width direction of the die. The locking block 22 is also rectangular and has rounded corners at the corners near the inner side of the lower die 2. The upper die 1 is provided with a locking groove 12, and the locking groove 12 is used for plugging the locking block 22 and is completely attached to the locking block 22.
A flash bin 7 is formed between the lower die 2 and the upper die 1, and the flash bin 7 is positioned at one side close to the round table forming part 31 along the length direction of the die.
The lower die 2 is provided with an exhaust hole 23 at the lowest point of the pre-forging cavity 3, the exhaust hole 23 extends downwards along a straight line to the edge of the lower die 2 closest to the lowest point of the pre-forging cavity 3, and the edge of the lower die 2 is provided with an exhaust groove 24 communicated with the exhaust hole 23.
The upper die 1 is provided with an exhaust channel 13 at the highest point of the round table forming part 31, and the exhaust channel 13 vertically extends to the top surface of the upper die 1.
The working principle is as follows: the round table forming part 31 for forming the high-oil nozzle is sealed by the whole closed sealing block 21 and the whole closed notch 11, so that the resistance can be infinitely increased to finish the filling of the high-oil nozzle; by utilizing the exhaust channel 13, the influence of air on molding is reduced, and the molding of the high-oil nozzle is ensured; while flash bin 7 ensures the excess metal extrusion.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The utility model provides an open die forging mould, includes mould (1) and lower mould (2), goes up upper and lower two parts that correspond respectively on mould (1) and lower mould (2) and be equipped with pre-forging type chamber (3), its characterized in that: the pre-forging cavity (3) is provided with a round table forming part (31), and the round table forming part (31) is positioned at one end of the pre-forging cavity (3); the lower die (2) is provided with closed sealing blocks (21) at two sides of the round table forming part (31) along the width direction of the die, and the closed sealing blocks (21) are provided with round corners at the corners close to the inner side of the lower die (2); the middle parts of the two closed sealing blocks (21) close to one side of the round table forming part (31) are respectively recessed inwards to form a material blocking wall (6); the upper die (1) is provided with a closed notch (11), and the closed notch (11) is used for plugging a closed sealing block (21); the closed type notch (11) is provided with a material blocking protrusion (111) on the side surface close to the round table forming part (31), the surface of the material blocking protrusion (111) is attached to the material blocking wall (6), and the whole closed type sealing block (21) is attached to the whole closed type notch (11); the upper die (1) is provided with an exhaust channel (13) at the highest point of the round table forming part (31), and the exhaust channel (13) vertically extends to the top surface of the upper die (1); two ejection through holes (5) are formed in the lower die (2) between the pre-forging cavities (3), and the two ejection through holes (5) are arranged beside the pre-forging cavities (3) along the length direction of the die; a flash bin (7) is formed between the lower die (2) and the upper die (1), and the flash bin (7) is positioned at one side close to the round table forming part (31) along the length direction of the die.
2. The open die forging die as recited in claim 1, wherein: the material blocking wall (6) comprises a first cambered surface (61), a connecting surface (62) and a second cambered surface (63), wherein the first cambered surface (61) is positioned at the round corner of the inner side top of the closed sealing block (21), the second cambered surface (63) is positioned at the round corner of the inner side bottom of the closed sealing block (21), and the connecting surface (62) is positioned on one side of the closed sealing block (21) close to the round table forming part (31) and vertically extends from the lower edge of the first cambered surface (61) to the upper edge of the second cambered surface (63).
3. The open die forging die as recited in claim 1, wherein: the lower die (2) is provided with an exhaust hole (23) at the lowest point of the pre-forging cavity (3), and the exhaust hole (23) extends to the bottom of the lower die (2).
4. The open die forging die as recited in claim 3, wherein: the exhaust hole (23) extends downwards along a straight line to the edge of the lower die (2) closest to the lowest point of the pre-forging cavity (3), and an exhaust groove (24) communicated with the exhaust hole (23) is formed in the edge of the lower die (2).
5. The open die forging die as recited in claim 1, wherein: the lower die (2) is provided with two lock catch blocks (22) at one end far away from the round table forming part (31); the two locking blocks (22) are respectively positioned at two sides of the pre-forging cavity (3) along the width direction of the die; the upper die (1) is provided with a locking groove (12), and the locking groove (12) is used for plugging a locking block (22) and is attached to the locking block (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844855.0A CN108580779B (en) | 2018-07-27 | 2018-07-27 | Open die forging mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844855.0A CN108580779B (en) | 2018-07-27 | 2018-07-27 | Open die forging mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108580779A CN108580779A (en) | 2018-09-28 |
| CN108580779B true CN108580779B (en) | 2024-03-26 |
Family
ID=63618924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810844855.0A Active CN108580779B (en) | 2018-07-27 | 2018-07-27 | Open die forging mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108580779B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622855B (en) * | 2018-12-11 | 2020-12-29 | 陕西宏远航空锻造有限责任公司 | Mold, and mold design method and device |
| CN109622844A (en) * | 2018-12-25 | 2019-04-16 | 昆山惠众机电有限公司 | A kind of forging technology of the pump housing for vent gas treatment |
| CN115673210A (en) * | 2022-10-31 | 2023-02-03 | 江苏理研科技股份有限公司 | Forging die for fuel common rail |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU948518A1 (en) * | 1980-12-15 | 1982-08-07 | Алтайский Ордена Ленина Тракторный Завод Им.М.И.Калинина | Finish impression of die for die forging |
| CN201366480Y (en) * | 2009-03-05 | 2009-12-23 | 芜湖三联锻造有限公司 | Semi-closed pre-forming forging and stamping mold |
| CN201609749U (en) * | 2010-03-19 | 2010-10-20 | 重庆杰信模具有限公司 | Crankshaft forging mold |
| CN205887937U (en) * | 2016-07-22 | 2017-01-18 | 上海运良企业发展有限公司 | Be total to rail forging mould structure |
| CN106695249A (en) * | 2015-08-13 | 2017-05-24 | 江苏龙城精锻有限公司 | Forging forming process for high-pressure common-rail tube |
| CN208495687U (en) * | 2018-07-27 | 2019-02-15 | 天津天海精密锻造有限公司 | A kind of open die forging, impressing forging mold |
-
2018
- 2018-07-27 CN CN201810844855.0A patent/CN108580779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU948518A1 (en) * | 1980-12-15 | 1982-08-07 | Алтайский Ордена Ленина Тракторный Завод Им.М.И.Калинина | Finish impression of die for die forging |
| CN201366480Y (en) * | 2009-03-05 | 2009-12-23 | 芜湖三联锻造有限公司 | Semi-closed pre-forming forging and stamping mold |
| CN201609749U (en) * | 2010-03-19 | 2010-10-20 | 重庆杰信模具有限公司 | Crankshaft forging mold |
| CN106695249A (en) * | 2015-08-13 | 2017-05-24 | 江苏龙城精锻有限公司 | Forging forming process for high-pressure common-rail tube |
| CN205887937U (en) * | 2016-07-22 | 2017-01-18 | 上海运良企业发展有限公司 | Be total to rail forging mould structure |
| CN208495687U (en) * | 2018-07-27 | 2019-02-15 | 天津天海精密锻造有限公司 | A kind of open die forging, impressing forging mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108580779A (en) | 2018-09-28 |
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| SE01 | Entry into force of request for substantive examination | ||
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Country or region after: Zhong Guo Address after: No. 10, North Section of Dongxing Road, International Trade Logistics Park, Jinghai District, Tianjin City, 301600 Applicant after: Tianjin Tianhai Precision Forging Co.,Ltd. Address before: 301600 north side of Beihua Road, Jinghai Town, Jinghai District, Tianjin Applicant before: TIANJIN TIANHAI PRECISION FORGING Co.,Ltd. Country or region before: Zhong Guo |