CN109773192A - A kind of high pressure oil rail manufacturing method - Google Patents
A kind of high pressure oil rail manufacturing method Download PDFInfo
- Publication number
- CN109773192A CN109773192A CN201910116257.6A CN201910116257A CN109773192A CN 109773192 A CN109773192 A CN 109773192A CN 201910116257 A CN201910116257 A CN 201910116257A CN 109773192 A CN109773192 A CN 109773192A
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- high pressure
- pressure oil
- mandrel
- oil rail
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000000465 moulding Methods 0.000 claims abstract description 65
- 238000007493 shaping process Methods 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- 238000005238 degreasing Methods 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 238000012805 post-processing Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 53
- 238000009434 installation Methods 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of high pressure oil rail manufacturing method, successively the following steps are included: being kneaded: being added in mixing facilities and is kneaded after metal powder and adhesive are mixed, obtains injection material；Injection moulding: by shaping mold cavity of the injection material through the injection port injection moulding mold of molding die, the shaping mold cavity of molding die adapts to high pressure oil rail to be manufactured；High pressure oil rail green compact are obtained after to be formed；Degreasing: ungrease treatment is carried out to high pressure oil rail green compact；Sintering: the high pressure oil rail green compact after degreasing are put into agglomerating plant and are sintered, high pressure oil rail blank is obtained；Post-processing: finishing high pressure oil rail blank obtains high pressure oil rail product；High pressure oil rail product is integrated.The application mainly obtains high pressure oil rail using metal injection molded, its have the advantages that manufacturing procedure it is few, without cutting or few cutting, manufacturing cost is low, high financial profit, simultaneously can also processing wall is thin, complicated high pressure oil rail, obtained high pressure oil rail mechanical performance is good.
Description
Technical field
The present invention relates to the manufacturing fields of engine high pressure oil rail, more particularly to a kind of high pressure oil rail manufacturing method.
Background technique
High pressure oil rail is one of core component of automobile engine, is the important component of automobile high-pressure concentrator.
High pressure oil rail is while realizing distribution high pressure fuel function, it may have the effect of balanced each oil spout nozzle injection pressure.High pressure oil
Fuel inlet fitting and oil injector seat are provided on rail, wherein fuel inlet fitting be used for be connected with high-pressure pump, realize high pressure oil rail into
Oil, oil injector seat with fuel injector for being connected, realizing the fuel-displaced of high pressure oil rail.
Currently, the manufacturing method that high pressure oil rail is mainly combined using the assembling of each function part with soldering, still, the manufacture
There are following defects for method: high production cost, time-consuming and laborious and high pressure oil rail are heavy, meanwhile, weld seam will have a direct impact on welding matter
Amount, prevent the processing quality of high pressure oil rail from being effectively ensured, is finally unfavorable for the cost effective of power assembly
And lightweight, it is not able to satisfy the requirement that motor vehicle emission is gradually increased in country.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of high pressure oil rail manufacturing method,
Be conducive to improve the mechanical performance of high pressure oil rail and reduce manufacturing cost.
To achieve the above object, the present invention provides a kind of high pressure oil rail manufacturing method, successively the following steps are included:
S1, mixing: it is added in mixing facilities and is kneaded after metal powder and adhesive are mixed, obtain injection material；
S2, injection moulding: by shaping mold cavity of the injection material through the injection port injection moulding mold of molding die, institute
The shaping mold cavity for stating molding die adapts to high pressure oil rail to be manufactured；High pressure oil rail green compact are obtained after to be formed；
S3, degreasing: ungrease treatment is carried out to the high pressure oil rail green compact；
S4, sintering: the high pressure oil rail green compact after degreasing are put into agglomerating plant and are sintered, high pressure oil rail blank is obtained；
S5, post-processing: finishing high pressure oil rail blank obtains high pressure oil rail product；The high pressure oil rail product is integrated
Part.
Further, the high pressure oil rail green compact are integrated, and the high pressure oil rail green compact have main oil pipe portion, are provided with
In main oil pipe portion and axially extending oil duct, the fuel inlet fitting portion extended from the outer peripheral surface in main oil pipe portion and from main oil
The fuel injector portions extended on the outer peripheral surface of pipe portion have the oil inlet passage communicated with oil duct, institute in the fuel inlet fitting portion
Stating has the oil supply gallery communicated with oil duct in fuel injector portions.
Further, the shaping mold cavity have for form main oil pipe portion main oil pipe form chamber, for form into
The fuel inlet fitting molding chamber of oily connector portions and the oil injector seat for forming fuel injector portions form chamber, the oil inlet
Connector molding chamber and oil injector seat molding chamber are all communicated with main oil pipe molding chamber；The molding die has for forming
The main oil pipe mandrel of the oil duct, the fuel inlet fitting mandrel for forming the oil inlet passage and for forming the fuel feeding
The oil injector seat mandrel in channel；The main oil pipe mandrel is installed in main oil pipe forming cavity room, and the fuel inlet fitting mandrel is fixed
In fuel inlet fitting forming cavity room, the oil injector seat mandrel is installed in oil injector seat forming cavity room.
Further, the molding die includes the left mold with left die cavity, right mould tool, Yi Jishe with right mould chamber
In the upper mold of left mold and right mould tool upper end, the left mold and right mould tool main oil pipe portion diameter are oppositely arranged to the left and right；It is described
After left mold and right mould tool splicing, the left die cavity and right mould cavity constitute the shaping mold cavity, in the shaping mold cavity
Oil injector seat forms chamber and exposes from the upper end that left mold and right mould have and covered by the upper mold.
Further, the molding die also has pressure relief opening, and the injection port and pressure relief opening are all communicated with shaping mold cavity.
Further, have on the molding die for opening up the injection part of injection port and for opening up pressure relief opening
Pressure release portion, the injection part and pressure release portion are respectively provided at the both ends of main oil pipe molding chamber；The two of the main oil pipe mandrel
End is individually fixed in injection part and pressure release portion；The fuel inlet fitting mandrel from the inner wall that left mold and/or right mould have integrally
Extend；The oil injector seat mandrel includes the first mandrel and the second mandrel of end abutment, and first mandrel is from main oil pipe
Integrally extend on the outer peripheral surface of mandrel, second mandrel integrally extends from the lower end surface of upper mold.
Further, the high pressure oil rail green compact also have the mounting base that the periphery from fuel injector portions is integrally extended
Portion has mounting hole in the installation portions；The shaping mold cavity also has the shaping socket for installation chamber for forming installation portions
Room, the shaping socket for installation chamber are communicated with oil injector seat molding chamber；The molding die further includes for forming the peace
The mounting base mandrel in hole is filled, the mounting base mandrel is installed in shaping socket for installation chamber.
Further, the mounting base mandrel is a multi-diameter shaft；The mounting base mandrel is from one on the lower end surface of upper mold
Extend to body.
Further, the high pressure oil rail green compact also have the sensor connector extended from the outer peripheral surface in main oil pipe portion
Portion has sensor installation cavity in the sensor connector portion；The shaping mold cavity also has for forming sensor connector portion
Sensor connector form chamber, sensor connector molding chamber forms chamber with main oil pipe and communicates；The molding die
It further include the sensor mandrel for forming the sensor installation cavity, the sensor mandrel is installed in sensor connector molding
In chamber.
As described above, high pressure oil rail manufacturing method of the present invention, has the advantages that
The application mainly obtains high pressure oil rail using metal injection molded, few with manufacturing procedure, cut without cutting or less
Cut, the advantages of manufacturing cost is low, high financial profit, at the same can also processing wall is thin, complicated high pressure oil rail, obtained high pressure
Oily trailer tool excellent performance, it is particularly suitable to produce high pressure oil rail small-sized, complicated and with particular/special requirement in large quantity.
Detailed description of the invention
Fig. 1 is the flow chart of the application mesohigh oil rail manufacturing method.
Fig. 2 is the structural schematic diagram of the application mesohigh oil rail green compact.
Fig. 3 is the structural schematic diagram of molding die in the application.
Fig. 4 is the explosive view of Fig. 3.
Fig. 5 and Fig. 6 is the structural schematic diagram after Fig. 4 omission high pressure oil rail green compact and upper mold under different perspectives.
Fig. 7 is that Fig. 5 omits the structural schematic diagram after right mould tool.
Fig. 8 is that Fig. 5 omits the structural schematic diagram after left mold.
Fig. 9 is the structural schematic diagram of upper mold in Fig. 5.
Component label instructions
1 molding die
2 high pressure oil rail green compact
21 main oil pipe portions
22 fuel inlet fitting portions
23 fuel injector portions
24 installation portions
25 sensor connector portions
26 oil supply galleries
27 mounting holes
31 main oil pipes form chamber
32 fuel inlet fittings form chamber
33 oil injector seats form chamber
34 shaping socket for installation chambers
35 sensor connectors form chamber
41 main oil pipe mandrels
42 fuel inlet fitting mandrels
43 oil injector seat mandrels
431 first mandrels
432 second mandrels
44 mounting base mandrels
5 left molds
51 left die cavitys
6 right moulds tool
61 right mould chambers
7 upper molds
8 injection parts
9 pressure release portions
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is drawn, only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat
It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, the present invention provides a kind of high pressure oil rail manufacturing method, successively the following steps are included:
S1, mixing: it is added in mixing facilities and is kneaded after metal powder and adhesive are mixed, obtain injection material；
S2, injection moulding: by shaping mold cavity of the injection material through the injection port injection moulding mold 1 of molding die 1,
The shaping mold cavity of the molding die 1 adapts to high pressure oil rail to be manufactured；High pressure oil rail as shown in Figure 2 is obtained after to be formed
Green compact 2；
S3, degreasing: ungrease treatment is carried out to the high pressure oil rail green compact 2；
S4, sintering: the high pressure oil rail green compact 2 after degreasing are put into agglomerating plant and are sintered, high pressure oil rail blank is obtained；
S5, post-processing: finishing high pressure oil rail blank, for example hermetic terminal is processed at the both ends of high pressure oil rail blank,
Obtain high pressure oil rail product；The high pressure oil rail product is integrated.
The application mainly obtains high pressure oil rail using metal injection molded, can be obtained later by simple finishing pre-
The high pressure oil rail product first designed, manufacture few with manufacturing procedure it is time-consuming it is short, without cutting or few cutting, manufacturing cost is low, warp
The advantages of high efficiency of helping, at the same can also processing wall is thin, complicated high pressure oil rail, obtained high pressure oil rail mechanical performance is good,
It is particularly suitable to produce high pressure oil rail small-sized, complicated and with particular/special requirement in large quantity.Particularly, the high pressure oil is utilized
Rail manufacturing method, the structure by changing 1 inside shaping mold cavity of molding die can obtain high pressure oil rail green compact of various shapes
2, and then high pressure oil rail of various shapes is produced, being especially suitable for those has irregular shape or is had after simulation optimization
The manufacture of the asymmetric high pressure oil rail of complex arrangement condition.Therefore, the present invention not only realizes the design optimization of high pressure oil rail,
So that high pressure oil rail is easily realized optimal structure and the smallest weight etc., while also achieving the cost effective of high pressure oil rail production.
Further, the high pressure oil rail green compact 2 are integrated.In general, as shown in Fig. 2, the high pressure oil rail is raw
Base 2 has main oil pipe portion 21, is provided in main oil pipe portion 21 and axially extending oil duct, prolongs from the outer peripheral surface in main oil pipe portion 21
The fuel inlet fitting portion 22 of stretching, the fuel injector portions 23 extended from the outer peripheral surface in main oil pipe portion 21, from fuel injector portions 23
The periphery installation portions 24 integrally extended and the sensor connector portion extended from the outer peripheral surface in main oil pipe portion 21
25；The fuel inlet fitting portion 22 and sensor connector portion 25 all shift to install on the axial and circumferential in main oil pipe portion 21；It is described
There is the oil inlet passage communicated with oil duct in fuel inlet fitting portion 22；There is the fuel feeding communicated with oil duct in the fuel injector portions 23
Channel 26；There is the sensor installation cavity communicated with oil duct in the sensor connector portion 25；Have in the installation portions 24
Mounting hole 27.By in the finally obtained high pressure oil rail product of high pressure oil rail green compact 2 of above structure, correspondingly there is high pressure oil
Structure feature possessed by rail green compact 2, wherein for installing pressure sensor, pressure sensor is used in sensor connector portion 25
Detect the internal pressure of high pressure oil rail.
Further, in order to be injection moulded to obtain the high pressure oil rail green compact 2 of above structure, in the molding die 1
The shaping mold cavity in portion preferably uses following structures: as shown in Fig. 5 to Fig. 8, the shaping mold cavity has for forming main oil pipe portion
21 main oil pipe forms chamber 31, the fuel inlet fitting for forming fuel inlet fitting portion 22 forms chamber 32, for forming fuel injector
The oil injector seat molding chamber 33 of portions 23 installs the shaping socket for installation chamber 34 of portions 24 and for forming for forming
The sensor connector in sensor connector portion 25 forms chamber 35；The fuel inlet fitting molding chamber 32, oil injector seat form chamber
33 and sensor connector molding chamber 35 all with main oil pipe molding chamber 31 communicate, the shaping socket for installation chamber 34 and fuel injector
Seat molding chamber 33 communicates.Particularly, as shown in Fig. 5 to Fig. 8, the molding die 1 has the master for forming the oil duct
Oil pipe mandrel 41, the fuel inlet fitting mandrel 42 for forming the oil inlet passage, the oil spout for forming the oil supply gallery 26
Device seat mandrel 43, the mounting base mandrel 44 for forming the mounting hole 27 and for forming the sensor installation cavity
Sensor mandrel；Wherein, the main oil pipe mandrel 41 is installed in main oil pipe molding chamber 31, and the fuel inlet fitting mandrel 42 is solid
It is located in fuel inlet fitting molding chamber 32, the oil injector seat mandrel 43 is installed in oil injector seat molding chamber 33, the peace
Dress seat mandrel 44 is installed in shaping socket for installation chamber 34, and the sensor mandrel is installed in sensor connector molding chamber 35
It is interior.More preferably, the molding die 1 also has pressure relief opening, and the injection port and pressure relief opening are all communicated with shaping mold cavity；And this reality
It applies in example, the injection part 8 and pressure release portion 9 are respectively provided at the both ends of main oil pipe molding chamber 31.
Further, the molding die 1 preferably uses following structures: as shown in figs. 3 to 9, the molding die 1 wraps
Include the left mold 5 with left die cavity 51, the right mould tool 6 with right mould chamber 61, the upper mold for being located at 6 upper ends of left mold 5 and right mould tool
Tool 7, the injection part 8 for opening up injection port and the pressure release portion 9 for opening up pressure relief opening；The left mold 5 and right mould tool 6
21 diameter of main oil pipe portion is oppositely arranged to the left and right, the phase axially back and forth of the injection part 8 and pressure release portion 9 along main oil pipe molding chamber 31
To setting.After 6 splicing of the left mold 5 and right mould tool, the left die cavity 51 and right mould chamber 61 communicate and constitute the shaping mold cavity,
In the shaping mold cavity oil injector seat molding chamber 33 and shaping socket for installation chamber 34 all from left mold 5 and right mould tool 6 it is upper
Expose and covered by the upper mold 7 in end.Main oil pipe molding chamber 31, fuel inlet fitting molding chamber 32, oil injector seat at
Type chamber 33, shaping socket for installation chamber 34 and sensor connector form this five molding chambers of chamber 35, each molding chamber
Some is provided in left mold 5 and rest part is provided in right mould tool 6.
More preferably, the fixed form of each mandrel is as follows: as shown in Figures 5 to 9, the rear and front end of the main oil pipe mandrel 41
It is individually fixed in injection part 8 and pressure release portion 9；For the ease of demoulding, main oil pipe mandrel 41 can use two sections of segmental structures, two
The end of segmentation abuts against, and injection part 8 is fixed in the front end of one of segmentation, and pressure release portion is fixed in the rear end of another segmentation
9.The fuel inlet fitting mandrel 42 integrally extends from the inner wall of left mold 5 and/or right mould tool 6；Therefore, fuel inlet fitting core
Axis 42 all can integrally extend from the inner wall of left mold 5 or fuel inlet fitting mandrel 42 can be all from right mould tool 6
Integrally extend on inner wall or 42 a part of fuel inlet fitting mandrel integrally extends from the inner wall of left mold 5, is another
Integrally extend from the inner wall of right mould tool 6 part；In the present embodiment, fuel inlet fitting mandrel 42 can be all from left mold 5
Inner wall on integrally extend.The oil injector seat mandrel 43 includes the first mandrel 431 and the second mandrel of end abutment
432, first mandrel 431 integrally extends from the outer peripheral surface of main oil pipe mandrel 41, and second mandrel 432 is from upper mold
Integrally extend on the lower end surface of tool 7.
In addition, the mounting hole 27 in the installation portions 24 is stepped hole, which includes the first hole being relatively large in diameter
Portion and lesser second hole portion of diameter；In order to be easy to form the stepped hole, mounting base mandrel 44 preferably uses following structures:
As shown in Figure 7 to 9, the mounting base mandrel 44 is multi-diameter shaft；The mounting base mandrel 44 is from one on the lower end surface of upper mold 7
Extend downwardly out to body.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of high pressure oil rail manufacturing method, it is characterised in that: successively the following steps are included:
S1, mixing: it is added in mixing facilities and is kneaded after metal powder and adhesive are mixed, obtain injection material；
S2, injection moulding: by shaping mold cavity of the injection material through the injection port injection moulding mold (1) of molding die (1),
The shaping mold cavity of the molding die (1) adapts to high pressure oil rail to be manufactured；High pressure oil rail green compact (2) are obtained after to be formed；
S3, degreasing: ungrease treatment is carried out to the high pressure oil rail green compact (2)；
S4, sintering: the high pressure oil rail green compact (2) after degreasing are put into agglomerating plant and are sintered, high pressure oil rail blank is obtained；
S5, post-processing: finishing high pressure oil rail blank obtains high pressure oil rail product；The high pressure oil rail product is integrated.
2. high pressure oil rail manufacturing method according to claim 1, it is characterised in that: the high pressure oil rail green compact (2) are one
Body part, the high pressure oil rail green compact (2) have main oil pipe portion (21), are provided in main oil pipe portion (21) and axially extending oil
Road, the fuel inlet fitting portion (22) extended from the outer peripheral surface of main oil pipe portion (21) and the outer peripheral surface from main oil pipe portion (21)
On the fuel injector portions (23) extended, there is the oil inlet passage communicated with oil duct, the spray in the fuel inlet fitting portion (22)
There is the oil supply gallery (26) communicated with oil duct in oily device portions (23).
3. high pressure oil rail manufacturing method according to claim 2, it is characterised in that: the shaping mold cavity has for forming
Main oil pipe molding chamber (31) in main oil pipe portion (21), the fuel inlet fitting for forming fuel inlet fitting portion (22) form chamber
(32) oil injector seat and for forming fuel injector portions (23) forms chamber (33), and the fuel inlet fitting forms chamber
(32) it is all communicated with main oil pipe molding chamber (31) with oil injector seat molding chamber (33)；The molding die (1), which has, to be used for
It forms the main oil pipe mandrel (41) of the oil duct, the fuel inlet fitting mandrel (42) for forming the oil inlet passage and is used for
Form the oil injector seat mandrel (43) of the oil supply gallery (26)；The main oil pipe mandrel (41) is installed in main oil pipe molding chamber
(31) in, the fuel inlet fitting mandrel (42) is installed in fuel inlet fitting molding chamber (32), the oil injector seat mandrel (43)
It is installed in oil injector seat molding chamber (33).
4. high pressure oil rail manufacturing method according to claim 3, it is characterised in that: the molding die (1) includes having
The left mold (5) of left die cavity (51), the right mould with right mould chamber (61) have (6) and are located at left mold (5) and right mould tool (6)
The upper mold (7) of upper end, the left mold (5) and right mould tool (6) main oil pipe portion (21) diameter are oppositely arranged to the left and right；The left mould
After having (5) and right mould tool (6) splicing, the left die cavity (51) and right mould chamber (61) communicate the composition shaping mold cavity, it is described at
Oil injector seat molding chamber (33) in pattern chamber is exposed from the upper end of left mold (5) and right mould tool (6) and by the upper mold
(7) it covers.
5. high pressure oil rail manufacturing method according to claim 4, it is characterised in that: the molding die (1), which also has, lets out
Mouth is pressed, the injection port and pressure relief opening are all communicated with shaping mold cavity.
6. high pressure oil rail manufacturing method according to claim 5, it is characterised in that: have on the molding die (1) and use
In the injection part (8) for opening up injection port and pressure release portion (9) for opening up pressure relief opening, the injection part (8) and pressure release portion
(9) it is respectively provided at the both ends of main oil pipe molding chamber (31)；The both ends of the main oil pipe mandrel (41) are individually fixed in injection
Portion (8) and pressure release portion (9)；The fuel inlet fitting mandrel (42) has on the inner wall of (6) integrally from left mold (5) and/or right mould
Extend；The oil injector seat mandrel (43) includes the first mandrel (431) and the second mandrel (432) of end abutment, and described
One mandrel (431) integrally extends from the outer peripheral surface of main oil pipe mandrel (41), and second mandrel (432) is from upper mold
(7) integrally extend on lower end surface.
7. high pressure oil rail manufacturing method according to claim 4, it is characterised in that: the high pressure oil rail green compact (2) also have
There are the installation portions (24) that the periphery from fuel injector portions (23) is integrally extended, there is installation in the installation portions (24)
Hole (27)；The shaping mold cavity also has the shaping socket for installation chamber (34) for forming installation portions (24), the mounting base
Molding chamber (34) is communicated with oil injector seat molding chamber (33)；The molding die (1) further includes for forming the installation
The mounting base mandrel (44) in hole (27), the mounting base mandrel (44) are installed in shaping socket for installation chamber (34).
8. high pressure oil rail manufacturing method according to claim 7, it is characterised in that: the mounting base mandrel (44) is single order
Terraced axis；The mounting base mandrel (44) is integrally extended from the lower end surface of upper mold (7).
9. high pressure oil rail manufacturing method according to claim 4, it is characterised in that: the high pressure oil rail green compact (2) also have
There is the sensor connector portion (25) extended from the outer peripheral surface of main oil pipe portion (21), has in the sensor connector portion (25)
Sensor installation cavity；Also there is the shaping mold cavity sensor connector for forming sensor connector portion (25) to form chamber
(35), sensor connector molding chamber (35) communicates with main oil pipe molding chamber (31)；The molding die (1) further includes
For forming the sensor mandrel of the sensor installation cavity, the sensor mandrel is installed in sensor connector molding chamber
(35) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116257.6A CN109773192B (en) | 2019-02-13 | 2019-02-13 | Manufacturing method of high-pressure oil rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116257.6A CN109773192B (en) | 2019-02-13 | 2019-02-13 | Manufacturing method of high-pressure oil rail |
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| Publication Number | Publication Date |
|---|---|
| CN109773192A true CN109773192A (en) | 2019-05-21 |
| CN109773192B CN109773192B (en) | 2021-03-16 |
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ID=66504555
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| Application Number | Title | Priority Date | Filing Date |
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-
2019
- 2019-02-13 CN CN201910116257.6A patent/CN109773192B/en active Active
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|---|---|---|---|---|
| JPH04345807A (en) * | 1991-05-23 | 1992-12-01 | Iseki & Co Ltd | Base material in resin molding |
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