CN115673210A - Forging die for fuel common rail - Google Patents
Forging die for fuel common rail Download PDFInfo
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- CN115673210A CN115673210A CN202211365754.8A CN202211365754A CN115673210A CN 115673210 A CN115673210 A CN 115673210A CN 202211365754 A CN202211365754 A CN 202211365754A CN 115673210 A CN115673210 A CN 115673210A
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Abstract
The invention discloses a forging die for a fuel common rail, which relates to the technical field of dies and comprises an upper die and a lower die, wherein die cavities are correspondingly formed in the upper die and the lower die, the die cavities are butted to form a die cavity after the upper die and the lower die are butted, first flow blocking grooves are formed in the butting surfaces of the upper die and the lower die, and the first flow blocking grooves are positioned on flash bridge parts on two sides of each bracket die cavity. Aiming at the special condition of the forge piece, the concave flow-resisting grooves are arranged on the flash bridge part of the die, the flowing direction of the material is changed to a certain extent according to the difference of the sizes and the positions of the flow-resisting grooves, the material is guided to flow to the position which is not easy to fill, and the phenomenon of material shortage in the forging process is reduced.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a forging die for a fuel oil common rail.
Background
The fuel common rail is an important part in a fuel injection system, the part is a typical special-shaped piece, the part extends out of a nozzle along the direction vertical to a long pipe, besides the long pipe and the nozzle, part of the fuel common rail also has a bracket for mounting and fixing, the bracket is generally vertical to the long pipe main body and the nozzle, and the typical fuel common rail part is shown in figure 1;
in forging, in order to facilitate the forming of the nozzle, the nozzle is generally arranged at an upper die or a lower die in the prior art, and a die parting surface follows the contour of the bracket; the bracket is positioned on the side surface of the forging cavity, is generally difficult to fill, and has the problem of material shortage in the forging process.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a forging die for a fuel oil common rail.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a forging mould of fuel common rail, includes mould and lower mould, go up and correspond in mould and the lower mould and seted up the die cavity, just go up the mould and dock the back with the lower mould, the die cavity butt joint forms the die cavity, all seted up first choked flow groove on the butt joint face of last mould and lower mould, just first choked flow groove is located the overlap bridge portion of every support die cavity both sides.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the first flow resisting groove comprises a first groove body parallel to the length direction of the bracket cavity and a second groove body vertical to the length direction of the bracket cavity,
the second groove body is connected to one end, close to the long pipe cavity, of the first groove body and is located on one side, far away from the support cavity, of the first groove body.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the distance between the first groove body and the adjacent bracket cavity is equal to the distance between the second groove body and the long pipe cavity.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the connecting section between the first groove body and the second groove body is arc-shaped.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the length of the first groove body is larger than that of the bracket cavity, and the difference between the first groove body and the bracket cavity is 5-10 mm.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the width of first choked flow groove is 2mm, and the degree of depth is 1.5mm.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the butt joint surface of the upper die and the lower die is also provided with second flow-blocking grooves with the number consistent with that of the die cavities of the bracket,
the second flow blocking groove is positioned on one side, far away from the support die cavity, of the long tube die cavity, the second flow blocking groove is parallel to the length direction of the long tube die cavity, and the perpendicular bisector of the second flow blocking groove is overlapped with the axis of the adjacent support die cavity.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the width of the second flow-blocking groove is 2mm, and the depth is 1.5mm.
As a preferable scheme of the forging die for the fuel common rail of the present invention, wherein: the length of the second flow-blocking groove is larger than the width of the bracket die cavity.
The invention has the beneficial effects that:
(1) According to the invention, the first flow-resisting grooves which are sunken towards the interior of the die are arranged on the flash bridge parts on two sides of each bracket cavity, and in the forging process, when the material passes through the flash bridge parts, the material can be filled into the first flow-resisting grooves firstly and then continuously flows towards the periphery of the flash bridge parts.
(2) According to the invention, the second flow-blocking groove is arranged on the other side of the bracket cavity, so that the material can be prevented from flowing to the side without the bracket, and more material can enter the bracket cavity.
(3) The invention can effectively control the flowing direction of the material, is convenient for filling the material to the position which is difficult to fill the forging, and simultaneously can prevent the material from flowing to the flash bin part by crossing the flash bridge part, thereby reducing the waste and improving the utilization rate of the material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic illustration of components of an exemplary fuel common rail;
FIG. 2 is a schematic diagram of a forging die for an exemplary fuel rail;
FIG. 3 is a schematic structural diagram of a lower die in a forging die for a fuel common rail provided by the invention;
wherein: 1. a lower die; 2. a first flow-blocking groove; 3. a first tank body; 4. a second tank body; 5. a second flow-blocking groove.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The embodiment of the application provides a forging mould of fuel common rail, and the mould includes mould and lower mould 1. An upper die cavity is arranged in the upper die, and a lower die 1 cavity is arranged in the lower die 1. After the upper die is in butt joint with the lower die 1, the upper die cavity is in butt joint with the lower die 1 to form a die cavity. The fuel oil common rail comprises a long pipe, a nozzle and a support, and the die cavity comprises a long pipe die cavity, a nozzle die cavity and a support die cavity.
First flow-blocking grooves 2 are formed in the butt joint surfaces of the upper die and the lower die 1. Referring to fig. 3, the first choked flow grooves 2 are formed in the flash bridge portions of the left and right sides of each of the rack cavities. The first flow-blocking groove 2 comprises a first groove body 3 and a second groove body 4. The first groove body 3 is arranged in parallel to the length direction of the bracket cavity, and the second groove body 4 is arranged perpendicular to the length direction of the bracket cavity. The second groove body 4 is connected to one end of the first groove body 3 close to the long pipe cavity and is positioned on one side of the first groove body 3 away from the bracket cavity. The connecting section between the first slot body 3 and the second slot body 4 is arc-shaped, and forms fillet transition. This avoids damage to the mould.
It should be noted that the distance between the first groove 3 and the adjacent bracket cavity is equal to the distance between the second groove 4 and the long tube cavity.
Referring to fig. 2, in the mold of the conventional fuel common rail, the distance from the center store of the fuel common rail bracket to the center of the long pipe main body is 38.5mm. When the die is used for forging a product, materials can flow through the flash bridge parts on two sides of the bracket cavity, and the flash bridge parts are not influenced by resistance, so that the materials enter the flash bin parts. The material is not easy to enter the front end of the bracket cavity, and the front end of the bracket is not fully filled.
In this embodiment, by arranging the first flow-blocking grooves 2 recessed toward the inside of the die at the flash bridge portions on both sides of each bracket cavity, in the forging process, when a material passes through the flash bridge portions, the material fills the first flow-blocking grooves 2 first, and then continues to flow toward the periphery of the flash bridge portions. In the process, due to the existence of the first flow resistance groove 2, the resistance of the material flowing outwards beyond the first flow resistance groove 2 is larger, so that more material flows to the front end of the bracket cavity, the bracket cavity is filled, the material shortage phenomenon in the forging process is reduced, and the forge piece is filled more fully.
Preferably, the length of the first groove 3 is greater than that of the bracket cavity, and the difference between the lengths is 5 to 10mm. After the design, first material blocking groove can better play the effect of blocking the material.
In addition, second flow-blocking grooves 5 are formed in the butt joint surfaces of the upper die and the lower die 1, and the number of the second flow-blocking grooves 5 formed in the upper die and the lower die 1 is equal to that of the bracket cavities. Referring to fig. 3, the second flow-blocking slot 5 is parallel to the length direction of the long pipe cavity. Each second flow-blocking groove 5 is opposite to the adjacent support cavity, and the vertical bisector of the second flow-blocking groove 5 is superposed with the axis of the adjacent support cavity.
By arranging the second flow blocking groove 5 on the other side of the bracket cavity, the material can be prevented from flowing to the side without the bracket, so that more material enters the bracket cavity.
Preferably, the length of the second launder 5 is greater than the width of the mould cavity of the stent. Further, the length of the second flow-blocking groove 5 is greater than the distance between two adjacent first groove bodies 3.
In the present embodiment, the width of each of the first and second flow-blocking grooves 2 and 5 is 2mm, and the depth thereof is 1.5mm. The reason why the first and second choke grooves 2 and 5 are provided as inner grooves is that: the protruding material blocking groove is short in service life, and after repeated forging, the protruding material blocking groove is easily ground flat and cannot play a material blocking role.
From this, the technical scheme of this application sets up concave flow resistance groove at the overlap bridge portion of mould to the special case of forging, according to the difference of the size and the position that flow resistance groove set up, has changed the flow direction of material to a certain extent, and the guide material is to the position flow that is difficult for being full of, has reduced the scarce material phenomenon of forging in-process.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a forging mould of fuel rail altogether, includes mould and lower mould (1), go up the mould and correspond in lower mould (1) and seted up the die cavity, just go up the mould and dock the back with lower mould (1), the die cavity dock and form die cavity, its characterized in that: go up the mould and all seted up first choked flow groove (2) on the butt joint face of lower mould (1), just first choked flow groove (2) are located the overlap bridge portion of every support die cavity both sides.
2. The forging die for the fuel common rail according to claim 1, wherein: the first flow blocking groove (2) comprises a first groove body (3) parallel to the length direction of the bracket cavity and a second groove body (4) vertical to the length direction of the bracket cavity,
the second groove body (4) is connected to one end, close to the long pipe cavity, of the first groove body (3) and is located on one side, far away from the support cavity, of the first groove body (3).
3. The forging die for the fuel common rail according to claim 2, wherein: the distance between the first groove body (3) and the adjacent bracket cavity is equal to the distance between the second groove body (4) and the long pipe cavity.
4. The forging die for the fuel common rail according to claim 2, wherein: the connecting section between the first groove body (3) and the second groove body (4) is arc-shaped.
5. The forging die for the fuel common rail according to claim 2, wherein: the length of the first groove body (3) is larger than that of the bracket cavity, and the difference between the length of the first groove body and the length of the bracket cavity is 5-10mm.
6. The forging die for the fuel common rail according to claim 1, wherein: the width of the first flow-blocking groove (2) is 2mm, and the depth is 1.5mm.
7. The forging die for the fuel common rail according to claim 1, wherein: the butt joint surface of the upper die and the lower die (1) is also provided with second flow-resisting grooves (5) with the number consistent with that of the bracket die cavities,
the second flow-blocking groove (5) is positioned on one side, far away from the support die cavity, of the long tube die cavity, the second flow-blocking groove (5) is parallel to the length direction of the long tube die cavity, and the vertical bisector of the second flow-blocking groove (5) coincides with the axis of the adjacent support die cavity.
8. The forging die for the fuel common rail of claim 7, wherein: the width of the second flow-blocking groove (5) is 2mm, and the depth is 1.5mm.
9. The forging die for the fuel common rail of claim 7, wherein: the length of the second flow-blocking groove (5) is larger than the width of the bracket die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211365754.8A CN115673210A (en) | 2022-10-31 | 2022-10-31 | Forging die for fuel common rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211365754.8A CN115673210A (en) | 2022-10-31 | 2022-10-31 | Forging die for fuel common rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115673210A true CN115673210A (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211365754.8A Pending CN115673210A (en) | 2022-10-31 | 2022-10-31 | Forging die for fuel common rail |
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|---|---|
| CN (1) | CN115673210A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007040247A (en) * | 2005-08-04 | 2007-02-15 | Nippon Steel Corp | High pressure fuel injection pressure accumulation distributor for automobile and its manufacturing method |
| CN104174803A (en) * | 2014-09-02 | 2014-12-03 | 山东金马工业集团股份有限公司 | High-pressure common rail pre-forging die |
| CN204122676U (en) * | 2014-09-05 | 2015-01-28 | 锦州捷通铁路机械制造有限公司 | Forging axle bridge upper mould |
| CN205020713U (en) * | 2015-08-13 | 2016-02-10 | 江苏龙城精锻有限公司 | High -pressure common -rail pipe's forging mould |
| CN108580779A (en) * | 2018-07-27 | 2018-09-28 | 天津天海精密锻造有限公司 | A kind of open die forging, impressing forging mold |
| CN208542899U (en) * | 2018-07-05 | 2019-02-26 | 江阴市凯信模锻有限公司 | Four turn automobile crane molding die |
| JP2019130587A (en) * | 2018-01-30 | 2019-08-08 | まこと工業株式会社 | Closed-forging method and forged product |
| CN110586827A (en) * | 2019-09-16 | 2019-12-20 | 江苏理研科技股份有限公司 | Forging process of fuel common rail |
| CN209849788U (en) * | 2019-01-25 | 2019-12-27 | 江阴市凯信模锻有限公司 | Deep-cavity crankshaft forming forging die |
| CN213350669U (en) * | 2020-08-18 | 2021-06-04 | 安徽金正达精锻科技有限公司 | Positioning core rod die for rail train bogie key |
| CN214684079U (en) * | 2021-03-09 | 2021-11-12 | 常州利腾机械有限公司 | Mould for high-pressure common rail pipe |
-
2022
- 2022-10-31 CN CN202211365754.8A patent/CN115673210A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007040247A (en) * | 2005-08-04 | 2007-02-15 | Nippon Steel Corp | High pressure fuel injection pressure accumulation distributor for automobile and its manufacturing method |
| CN104174803A (en) * | 2014-09-02 | 2014-12-03 | 山东金马工业集团股份有限公司 | High-pressure common rail pre-forging die |
| CN204122676U (en) * | 2014-09-05 | 2015-01-28 | 锦州捷通铁路机械制造有限公司 | Forging axle bridge upper mould |
| CN205020713U (en) * | 2015-08-13 | 2016-02-10 | 江苏龙城精锻有限公司 | High -pressure common -rail pipe's forging mould |
| JP2019130587A (en) * | 2018-01-30 | 2019-08-08 | まこと工業株式会社 | Closed-forging method and forged product |
| CN208542899U (en) * | 2018-07-05 | 2019-02-26 | 江阴市凯信模锻有限公司 | Four turn automobile crane molding die |
| CN108580779A (en) * | 2018-07-27 | 2018-09-28 | 天津天海精密锻造有限公司 | A kind of open die forging, impressing forging mold |
| CN209849788U (en) * | 2019-01-25 | 2019-12-27 | 江阴市凯信模锻有限公司 | Deep-cavity crankshaft forming forging die |
| CN110586827A (en) * | 2019-09-16 | 2019-12-20 | 江苏理研科技股份有限公司 | Forging process of fuel common rail |
| CN213350669U (en) * | 2020-08-18 | 2021-06-04 | 安徽金正达精锻科技有限公司 | Positioning core rod die for rail train bogie key |
| CN214684079U (en) * | 2021-03-09 | 2021-11-12 | 常州利腾机械有限公司 | Mould for high-pressure common rail pipe |
Non-Patent Citations (1)
| Title |
|---|
| 杨程;孙昊;孙跃;庄晓伟;邵杰;: "长枝杈喷油器体锻造工艺分析", 锻压技术 * |
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