CN104028686A - High-pressure common rail system oil injecting nozzle block forming die set - Google Patents
High-pressure common rail system oil injecting nozzle block forming die set Download PDFInfo
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- CN104028686A CN104028686A CN201310072937.5A CN201310072937A CN104028686A CN 104028686 A CN104028686 A CN 104028686A CN 201310072937 A CN201310072937 A CN 201310072937A CN 104028686 A CN104028686 A CN 104028686A
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Abstract
The invention relates to a high-pressure common rail system oil injecting nozzle block forming die set. An upper die plate and a lower die plate are oppositely arranged vertically; a die assembling oil cylinder is fixedly connected to the upper surface of the lower die plate; a lower base plate is connected to the upper end of a piston of the die assembling oil cylinder; a lower die core is connected to the upper surface of the lower base plate; a lower die sleeve surrounds the external side of the lower die core; a lower punch vertically penetrates the lower base plate to extend into a lower die core cavity; a lower ejection rod vertically penetrates the die assembling oil cylinder to be align to the lower punch from bottom to top; a punch set is fixedly connected to a lower bottom side of the upper die plate; the bottom side of the punch set is provided with a placing groove; two uplink wedge blocks, two downlink wedge blocks, a left wedge block and a right wedge block are arranged inside the placing groove; an oil cylinder cover of the die assembling coil cylinder is fixedly connected with an adjusting base block; an upper die core is fixedly connected to the punch set through an upper base plate; an upper die sleeve surrounds the external side of an upper die; the upper end of an upper punch is fixedly connected with the downlink wedge block; the lower end of the upper punch penetrates the upper base plate to extend into a cavity of the upper die core. The high-pressure common rail system oil injecting nozzle block forming die set is applicable to the block forging forming process.
Description
Technical field
The present invention relates to a kind of high pressure co-rail system atomizer blank closed die forming mould bases.
Background technology
Fuel injector is most critical and the most complicated parts in joint-track type fuel system, it is made up of magnetic valve, atomizer, injection valve etc., its effect is the control signal of sending according to ECU, by controlling the opening and closing of magnetic valve, the fuel oil in high pressure oil rail is sprayed into the combustion chamber of diesel engine with best injection timing, distributive value and fuel injection rate.Atomizer inside is processed with fuel feed hole, spill port, control valve opening etc., because the installing space of engine is limited, it is very large that the diameter of atomizer can not design, thereby cause the wall thickness between the inner several holes of atomizer smaller, wall thickness between hole and cylindrical is also very little, and main engine plants are the exhaust emissions performance that improves engine, all requires to improve the expulsion pressure of diesel oil, improve its atomization, thereby reduce discharge.The expulsion pressure of diesel oil generally all reaches 120-200MPa at present, so high expulsion pressure, very high to the requirement of fuel injector blank, comprise material, interior tissue, forging flow lines continuously, the requirement such as blemish, skin decarburization layer depth, as need, to reach forging flow lines continuous, middle part does not produce the effect of overlap, just must adopt closed-die extrusion forging technology technique, so just need to design a applicable high pressure co-rail system atomizer blank closed die forming mould bases.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, a kind of high pressure co-rail system atomizer blank closed die forming mould bases that is applicable to closed-die extrusion forging technology technique is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high pressure co-rail system atomizer blank closed die forming mould bases, comprises cope match-plate pattern, lower bolster, die cylinder, lower bolster, lower push rod, low punch, lower die-sleeve, lower mold core, Upper Die-sleeve, upper mold core, upper punch, two up pieces of carving, the descending piece of carving, left, piece is carved on the right side, upper bolster, upper padding plate, upper compressing rod and adjustment cushion block, described cope match-plate pattern and lower bolster are oppositely arranged up and down, described die cylinder is connected in the upper surface of lower bolster, described lower bolster is connected to the piston upper end of die cylinder, described lower mold core is connected to lower bolster upper surface, described lower die-sleeve is enclosed in lower mold core outside, described low punch vertically stretches into the die cavity of lower mold core through lower bolster, described lower push rod is vertically aimed at low punch from bottom to top through die cylinder, described upper bolster is connected on the bottom surface of cope match-plate pattern, this upper bolster bottom surface has standing groove, the described two up pieces of carving, descending piece and the left side of carving, carve in the standing groove that piece is arranged on upper bolster on the right side, and the described two up pieces of carving lay respectively at standing groove two ends, descending carving in the middle of piece is positioned at, and the descending piece both sides of carving are respectively by left, the right side is carved piece and is contacted with the two up pieces of carving, described two up piece belows of carving are fixed with respectively compressing rod, described die cylinder has oil cylinder cover, on this oil cylinder cover, be fixed with two positions respectively with above-mentioned on the corresponding adjustment cushion block of compressing rod, described upper mold core is connected on upper bolster by upper padding plate, described Upper Die-sleeve is enclosed in upper mold core outside, the die cavity of described upper mold core and the upper and lower corresponding setting of the die cavity of lower mold core, described upper punch upper end and the descending piece of carving are connected, and the die cavity of upper mold core is stretched in its lower end through upper padding plate.
Between described upper punch and upper padding plate, contact by two Hookean springs, this two Hookean spring is positioned at upper punch side face both sides, and one end of each Hookean spring contacts with upper punch side face, and the other end is connected with the end face of upper padding plate adjacent thereto.
Described two uply carve piece to be base angle are the right-angled trapezium of 45 °, this two up right-angle side of carving piece is pasting respectively the cell wall of standing groove, this two up upper base of carving piece arranges upward, and two hypotenuses are oppositely arranged, describedly descendingly carve piece and left and rightly carve piece to be base angle be the isosceles trapezoid of 45 °, the described descending upper base of carving piece arranges upward, and described left and right two waists of carving piece are carved piece and descending inclined-plane laminating of carving piece with up respectively.
Beneficial effect of the present invention: the invention solves the defect existing in background technology, design a high pressure co-rail system atomizer blank closed die forming mould bases that is applicable to closed-die extrusion forging technology technique, and this mould bases has Bidirectional-squeezing function, bidirectional stress when blank forming, blank non-trimming produces, inner forging flow lines is continuous, dense internal organization, and the mechanical strength of blank is high.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the preferred embodiments of the present invention.
Wherein: 1, cope match-plate pattern; 2, lower bolster; 3, die cylinder; 3-1, piston; 3-2, oil cylinder seat; 3-3, oil cylinder cover; 4, lower bolster; 5, lower push rod; 6, low punch; 7, lower die-sleeve; 8, lower mold core; 9, Upper Die-sleeve; 10, upper mold core; 11, upper punch; 12, the up piece of carving; 13, the descending piece of carving; 14, piece is carved on a left side; 15, piece is carved on the right side; 16, upper bolster; 17, upper padding plate; 18, upper compressing rod; 19, adjust cushion block; 20, Hookean spring.
Detailed description of the invention
A kind of high pressure co-rail system atomizer blank closed die forming mould bases as shown in Figure 1, comprise cope match-plate pattern 1, lower bolster 2, die cylinder 3, lower bolster 4, lower push rod 5, low punch 6, lower die-sleeve 7, lower mold core 8, Upper Die-sleeve 9, upper mold core 10, upper punch 11, two uply carve piece 12, descendingly carve piece 13, left and rightly carve piece 14,15, upper bolster 16, upper padding plate 17, upper compressing rod 18 and adjust cushion block 19.Described cope match-plate pattern 1 and lower bolster 2 are oppositely arranged up and down.Described die cylinder 3 comprises oil cylinder seat 3-2, piston 3-1 and oil cylinder cover 3-3, described die cylinder 3 is connected in the upper surface of lower bolster 2, described lower bolster 4 is connected to the piston 3-1 upper end of die cylinder 3, described lower mold core 8 is connected to lower bolster 4 upper surfaces, described lower die-sleeve 7 is enclosed in lower mold core 8 outsides, described low punch 6 vertically stretches into the die cavity of lower mold core 8 through lower bolster 4, described lower push rod 5 is vertically aimed at low punch 6 from bottom to top through die cylinder 3.
Described upper bolster 16 is connected on the bottom surface of cope match-plate pattern 1, these upper bolster 16 bottom surfaces have standing groove, the described two up pieces 12 of carving, descending piece 13 and the left side of carving, piece 14 is carved on the right side, 15 are arranged in the standing groove of upper bolster 16, two uply carve piece 12 to be base angle are the right-angled trapezium of 45 °, this two up right-angle side of carving piece 12 is pasting respectively the cell wall at standing groove two ends, this two up upper base of carving piece 12 arranges upward, and two hypotenuses are oppositely arranged, described descending piece 13 and the left side of carving, piece 14 is carved on the right side, 15 to be base angle be the isosceles trapezoid of 45 °, the descending piece 13 of carving is positioned at middle, its upper base arranges upward, a described left side is carved piece 14 and is positioned at descending piece 13 left sides of carving, the right side is carved piece 15 and is positioned at descending piece 13 the right of carving, left, piece 14 is carved on the right side, 15 upper base arranges down, its two waist is carved piece 12 and descending inclined-plane laminating of carving piece 13 with up respectively.Described two up piece 12 belows of carving are fixed with respectively compressing rod 18, are fixed with two positions adjustment cushion block 19 corresponding with above-mentioned upper compressing rod 18 respectively on the oil cylinder cover 3-3 of described die cylinder 3.Described upper mold core 10 is connected on upper bolster 16 by upper padding plate 17, and described Upper Die-sleeve 9 is enclosed in upper mold core 10 outsides, the upper and lower corresponding setting of die cavity of the die cavity of described upper mold core 10 and lower mold core 8.Described upper punch 11 upper ends and the descending piece 13 of carving are connected, the die cavity of upper mold core 10 is stretched in its lower end through upper padding plate 17, between described upper punch 11 and upper padding plate 17, contact by two Hookean springs 20, this two Hookean spring 20 is positioned at upper punch 11 side face both sides, one end of each Hookean spring 20 contacts with upper punch 11 side faces, and the other end is connected with the end face of upper padding plate 17 adjacent thereto.
Two uply carve piece (12), descendingly carve piece (13) and left and right angle of carving contact-making surface between piece (14,15) is all 45 degree, the thickness that changes like this adjustment cushion block (19) just equals the variation distance of upper punch (11) stroke, the namely variable quantity of atomizer blank total length, facilitates the control of blank length.
Operation principle: press ram is connected with cope match-plate pattern 1, when press ram is during at top dead-centre, the piston 3-1 of die cylinder 3 promotes lower bolster 4, lower die-sleeve 7 and lower mold core 8 and rises to top dead-centre, low punch 6 is motionless, the spacing of the upper surface of lower mold core 8 to the upper surface of low punch 6 increases like this, strengthen the blowing distance of blank, avoided the bending fold of major axis class blank in forging and stamping process.In the time that press ram moves downward not to bottom dead centre, the upper surface of the lower surface of upper mold core 10 and lower mold core 8 fits together under die cylinder and the common effect of press ram, oil cylinder working-pressure is also referred to as clamp force, ensure that clamp force is greater than blank counter power of making in upper and lower mould in forging and stamping process, thereby guarantee that atomizer blank does not produce overlap.When press ram continues to move downward, upper compressing rod 18 will touch adjusts cushion block 19, upper compressing rod 18 will move upward, promote the up piece 12 of carving and move upward, the two up pieces 12 of carving drive and left and rightly carve piece 14,15 relative motions, move downward thereby promote the descending piece 13 of carving, related upper punch 11 also moves downward, upper punch 11 and low punch 6 extrusion billet simultaneously like this, until press ram comes downwards to bottom dead centre, blank final molding.Final pressure machine slide block is up, and lower push rod 5 is top low punch 6 upwards, ejects workpiece.
Should be appreciated that specific embodiment described above, only for explaining the present invention, is not intended to limit the present invention.The apparent variation of being extended out by spirit of the present invention or variation are still among protection scope of the present invention.
Claims (3)
1. a high pressure co-rail system atomizer blank closed die forming mould bases, it is characterized in that: comprise cope match-plate pattern (1), lower bolster (2), die cylinder (3), lower bolster (4), lower push rod (5), low punch (6), lower die-sleeve (7), lower mold core (8), Upper Die-sleeve (9), upper mold core (10), upper punch (11), two up pieces (12) of carving, the descending piece (13) of carving, left, piece (14 is carved on the right side, 15), upper bolster (16), upper padding plate (17), upper compressing rod (18) and adjustment cushion block (19), described cope match-plate pattern (1) and lower bolster (2) are oppositely arranged up and down, described die cylinder (3) is connected in the upper surface of lower bolster (2), described lower bolster (4) is connected to piston (3-1) upper end of die cylinder (3), described lower mold core (8) is connected to lower bolster (4) upper surface, described lower die-sleeve (7) is enclosed in lower mold core (8) outside, described low punch (6) vertically stretches into the die cavity of lower mold core (8) through lower bolster (4), described lower push rod (5) is vertically aimed at low punch (6) from bottom to top through die cylinder (3), described upper bolster (16) is connected on the bottom surface of cope match-plate pattern (1), this upper bolster (16) bottom surface has standing groove, the described two up pieces (12) of carving, descending piece (13) and the left side of carving, the right side carves (14, 15) piece is arranged in the standing groove of upper bolster (16), the described two up pieces (12) of carving lay respectively at standing groove two ends, the descending piece (13) of carving is positioned at middle, descending piece (13) both sides of carving are respectively by left, piece (14 is carved on the right side, 15) contact with the two up pieces (12) of carving, described two up piece (12) belows of carving are fixed with respectively compressing rod (18), described die cylinder (3) has oil cylinder cover (3-3), on this oil cylinder cover (3-3), be fixed with two positions adjustment cushion block (19) corresponding with above-mentioned upper compressing rod (18) respectively, described upper mold core (10) is connected on upper bolster (16) by upper padding plate (17), described Upper Die-sleeve (9) is enclosed in upper mold core (10) outside, the upper and lower corresponding setting of die cavity of the die cavity of described upper mold core (10) and lower mold core (8), described upper punch (11) upper end and the descending piece (13) of carving are connected, the die cavity of upper mold core (10) is stretched in its lower end through upper padding plate (17).
2. high pressure co-rail system atomizer blank closed die forming mould bases according to claim 1, it is characterized in that: between described upper punch (11) and upper padding plate (17), contact by two Hookean springs (20), this two Hookean spring (20) is positioned at upper punch (11) side face both sides, one end of each Hookean spring (20) contacts with upper punch (11) side face, and the other end is connected with the end face of upper padding plate adjacent thereto (17).
3. high pressure co-rail system atomizer blank closed die forming mould bases according to claim 1, it is characterized in that: described two uply carve piece (12) to be base angle be the right-angled trapezium of 45 °, this two up right-angle side of carving piece (12) is pasting respectively the cell wall of standing groove, this two up upper base of carving piece (12) arranges upward, and two hypotenuses are oppositely arranged, described descending piece (13) and the left side of carving, piece (14 is carved on the right side, 15) being base angle is the isosceles trapezoid of 45 °, the described descending upper base of carving piece (13) arranges upward, a described left side, piece (14 is carved on the right side, 15) two waists are carved piece (12) and descending inclined-plane laminating of carving piece (13) with up respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310072937.5A CN104028686B (en) | 2013-03-07 | 2013-03-07 | High pressure co-rail system atomizer blank closed die forming mould bases |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310072937.5A CN104028686B (en) | 2013-03-07 | 2013-03-07 | High pressure co-rail system atomizer blank closed die forming mould bases |
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| CN104028686A true CN104028686A (en) | 2014-09-10 |
| CN104028686B CN104028686B (en) | 2016-03-16 |
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| CN201310072937.5A Active CN104028686B (en) | 2013-03-07 | 2013-03-07 | High pressure co-rail system atomizer blank closed die forming mould bases |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105344911A (en) * | 2015-12-10 | 2016-02-24 | 重庆福悦安科技有限公司 | Horizontal double-head cold upsetting seat |
| CN106914529A (en) * | 2017-04-12 | 2017-07-04 | 苏州汇程精密模具有限公司 | A kind of cambered surface is integrally formed die cutting die |
| CN114247814A (en) * | 2021-12-23 | 2022-03-29 | 湖南顶立科技有限公司 | Extrusion forming device and die pressing method |
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| JPH11314134A (en) * | 1998-05-06 | 1999-11-16 | Komatsu Ltd | Die device for closed forging |
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| CN203140671U (en) * | 2013-03-07 | 2013-08-21 | 江苏龙城精锻有限公司 | Blocked shaping formwork for oil nozzle blank of high-pressure common rail system |
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2013
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Patent Citations (5)
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| WO1998047646A1 (en) * | 1997-04-22 | 1998-10-29 | Komatsu Industries Corporation | Forging die and upset forging method |
| JPH11314134A (en) * | 1998-05-06 | 1999-11-16 | Komatsu Ltd | Die device for closed forging |
| CN1803340A (en) * | 2006-01-23 | 2006-07-19 | 北京交通大学 | Preparation method of two-directional chapiter blank for coal mine supporting and protection, and its mould |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105344911A (en) * | 2015-12-10 | 2016-02-24 | 重庆福悦安科技有限公司 | Horizontal double-head cold upsetting seat |
| CN106914529A (en) * | 2017-04-12 | 2017-07-04 | 苏州汇程精密模具有限公司 | A kind of cambered surface is integrally formed die cutting die |
| CN114247814A (en) * | 2021-12-23 | 2022-03-29 | 湖南顶立科技有限公司 | Extrusion forming device and die pressing method |
| CN114247814B (en) * | 2021-12-23 | 2023-12-05 | 湖南顶立科技有限公司 | Extrusion molding device and molding method |
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| CN104028686B (en) | 2016-03-16 |
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Address after: 213164 No.26 Longcheng West Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Longcheng Precision Forging Group Co.,Ltd. Address before: 213164 No.26 Longcheng West Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: JIANGSU LONGCHENG PRECISION FORGING Co.,Ltd. |