CN102327942A - Drawing method of oil pan of diesel engine - Google Patents
Drawing method of oil pan of diesel engine Download PDFInfo
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- CN102327942A CN102327942A CN201110218123A CN201110218123A CN102327942A CN 102327942 A CN102327942 A CN 102327942A CN 201110218123 A CN201110218123 A CN 201110218123A CN 201110218123 A CN201110218123 A CN 201110218123A CN 102327942 A CN102327942 A CN 102327942A
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Abstract
The invention discloses a drawing method of an oil pan of a diesel engine. The drawing method comprises the following steps: placing an expanded material at the corresponding position on the working face of a female die for correct location; pressing downwards the expanded material by use of a blank holder until the rated blank holder force is reached, and tightly pressing an insert block of the female die and an insert block of the blank holder at the moment; tightly pressing downwards the forming part at the center of the expanded material by use of a male die until the rated drawing force is reached; and removing the drawn workpiece, respectively resetting the male die and the blank holder, and quickly changing the dies by use of a support block and an inner movable block. By adopting the drawing method disclosed by the invention, two oil pans of different models can be pressed by one set of the dies, thus the finished product ratio of the oil pan is improved, and the production cost of the dies is reduced.
Description
The application be that August 12, application number in 2008 are 200810073743.6 the applying date, denomination of invention divides an application for the application for a patent for invention of " a kind of diesel engine oil pan drawing die and drawing method ".
Technical field
The present invention relates to a kind of method for using of the drain pan mould that produces oil, particularly a kind of diesel engine oil pan drawing method.
Background technology
In the manufacture process of diesel engine oil pan, the diesel engine oil pan of two kinds of models, a kind of is the flat flanged pin box part of staged, and another kind is a staged wedged bottom flanged pin box part, and both Outside Dimensions are identical, and stairstepping is different, and drawing coefficient is big.At present, producing similar tensioning member both at home and abroad, all is to adopt a kind of product one mold, and the percent defective of the tensioning member of being produced is very high, and production efficiency is low excessively, and the service life of mould is short, and processing cost is high, the requirement that does not far reach the enterprises comprehensive benefit.
Summary of the invention
The objective of the invention is to disclose a kind of diesel engine oil pan drawing method, adopt a kind of product one mold, problem such as percent defective is high, production efficiency is low, die life is short to solve present production diesel engine oil pan.
The invention discloses a kind of diesel engine oil pan drawing method, may further comprise the steps: place the relevant position of die working surface correctly to locate spread material; The descending pressure spread material of blank holder to specified pressure-pad-force, die plate insert and blank holder were inserted and were compressed this moment; Descending spread material center shaping to the specified drawing pressure that compresses of punch; The product that draws that draws completion is unloaded, and punch and blank holder reset respectively, utilize back-up block and interior loose piece to accomplish quick die change.
In the technique scheme; Utilize back-up block and interior loose piece to accomplish quick die change and specifically comprise the following steps: to make the descending and interior die of punch to contact, unclamp the punch screw, interior loose piece is up; End cylinder is up; Eject interior die, special hanger unloads lower punch and interior die, lifts another group punch and interior die again and carries out die change.
In the technique scheme; Lift another group punch and interior die again and carry out that die change specifically comprises the following steps: to lift another group punch and interior die places in the chamber of die; Automatically make interior die normotopia by back-up block; Interior loose piece is descending, tightens up punch with the punch screw, promptly accomplishes the step of changing the oil sump drawing die after null is normal.
Diesel engine oil pan drawing method disclosed by the invention can be realized the oil sump of two kinds of different models of mold compacting, has improved the yield rate of oil sump, has reduced the production cost of mould.
Description of drawings
Fig. 1 is a kind of diesel engine oil pan drawing die of the present invention assembled front view;
Fig. 2 is a kind of diesel engine oil pan drawing die of the present invention assembling plan view;
Fig. 3 is the flat flanged pin box of the staged oil sump product sketch map that the present invention produces;
Fig. 4 is the staged wedged bottom flanged pin box oil sump product sketch map that the present invention produces;
Fig. 5 is the flat flanged pin box of a staged oil sump product punch sketch map;
Fig. 6 is the flat flanged pin box of a staged oil sump product die sketch map;
Fig. 7 is a staged wedged bottom flanged pin box oil sump product punch sketch map;
Fig. 8 is a staged wedged bottom flanged pin box oil sump product die sketch map;
Fig. 9 is that U type of the present invention delays muscle and square delays the groove structural representation.
In conjunction with the accompanying drawing following Reference numeral of mark above that:
Die in the 1-die, 2-, the 3-punch, the 4-pressing plate, the 5-die plate insert, the 6-blank holder is inserted; The 7-guide pin bushing, the 8-blank holder, the 9-guide pillar, the short guide plate of 10-, 11-punch installing plate, 12-delays muscle; The 13-back-up block, the long guide plate of 14-, loose piece in the 15-backing plate, 16-, the outer loose piece of 17-.
The specific embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention is described in detail.
A kind of diesel engine oil pan drawing die is disclosed shown in Fig. 1-8; Mainly comprise: punch 3, the die assembly of forming by die 1, interior die 2 and die plate insert 5, by blank holder 8, the blank holder 6 blank holder assemblies formed of inserting; Punch 3 and interior die 2 are over against setting; The outside of die 2 in die 1 is arranged at, die plate insert 5 and blank holder insert 6 over against near setting.Be provided with back-up block 13 in die assembly bottom, be provided with the interior loose piece 16 that is used for fixing punch 3 at punch 3 tops, the correcting and the carrying of die 2 in back-up block 13 acts on, die 2 does not need fastener to connect in making; Two different oil sumps of one mold pressing system; Be to change fast punch 3 and interior die 2; And back-up block 13 provides condition flexibly with interior loose piece 16 for quick change punch 3 and interior die 2, specifically sees also the specific descriptions of following relevant diesel engine oil pan drawing die method.Wherein, die plate insert 5 and blank holder are inserted and 6 are adopted the high alloy tool steel manufacturings, and die 1, interior die 2 and blank holder 8 adopt the manufacturing of QT cast irons; Die assembly and blank holder assembly adopt high alloy tool steel plane piecemeal edge to piece together structure, and the working surface hardness of drawing die is high, wearability is good, anufacturability is good, and anti-tangential tension is strong drawing under the squeezed state; High through correct grinding back plane degree and surface smoothness; The pressure-bearing surface coefficient of friction is little, and drawing process die face caloric value is little, helps reducing the wearing and tearing of mould; Improve the service life of mould, satisfy the requirement of big drawing coefficient.
Diesel engine oil pan drawing die of the present invention also comprises and delays assembly; Delaying assembly comprises and delays muscle 12 and delay groove; As shown in Figure 9, be the characteristics of hierarchic structure according to the oil sump bottom surface, arrange that at the correct position of mould the U type delays muscle 12 and delays groove with square; The U type delays muscle 12 and is arranged at blank holder and inserts on 6, and the U type delays muscle 12 work cross sections and adopts the R cambered surfaces to constitute U type shapes; Vertically be to be inclined-plane, 15 ° of tangentials at the vertical direction two ends; Being provided with each 25 ° of angle of two ends in the horizontal direction arranges; The transformation difference that constitutes three-dimensional two ends gradual change shape delays the district, and the stage casing is that constant pressure delays the district, forms the system that delays with the die 1 corresponding square groove that delays.
Square delays groove and is arranged on the die plate insert 5; The U type delays muscle 12 and delays groove with square and change into local plane U-shaped motion to the material monolithic plane motion of drawing in the state; The local charging resistance that increases; To form the optimum adjustment drawing process uniformity situation of material flowing velocity and resistance everywhere, make each regional flow that material flows into die cavity in order, even, satisfy the needs of each position drawing and moulding of oil sump; It is too much and wrinkling to prevent that straight flange district material from flowing into, and plastic deformation is distinguished by force and the dangerouse cross-section material flows into very few and ftracture.
Diesel engine oil pan drawing die of the present invention also comprises compound positioning and guiding assembly; Compound positioning and guiding assembly comprises long guide plate 14, short guide plate 10, guide pillar 9 and guide pin bushing 7; Short guide plate 10, long guide plate 14 near and be arranged at punch 3 the outside, lack guide plate 10 be arranged at die plate insert 5 directly over; Guide pillar 9 is clipped between short guide plate 10 and the blank holder 8, and guide pin bushing 7 is set on the guide pillar 9.This compound positioning and guiding assembly is provided with simply, reliable, to realize pressure, to draw the positioning and guiding needs that two moving functions are accurately moved.Wherein, Guide pin bushing 7, guide pillar 9 mainly act on blank holder 8 and concave die cavity and delay the assembly correcting; Long and short guide plate navigation system is used for punch and the correcting of concave die cavity relative position and draws guide effect; And helping changing fast punch, in both showed each other, existing function distinguishing had the function cooperation again.
Diesel engine oil pan drawing die of the present invention also comprises backing plate 15, and backing plate 15 is arranged at interior die 2 bottoms, is used to adjust the drawing die stretching depth, when needs adjustment product stretching depth, can obtain the technological compensa tion value through attenuate backing plate 15 thickness.
The present invention also provides a kind of diesel engine oil pan drawing method, places die 1 working surface relevant position correctly to locate spread material, blank holder 8 descending spread material to the specified pressure-pad-forces of pushing down; Die plate insert and blank holder were inserted and were compressed this moment, and the punch 3 descending spread material center shapings that compress draw beginning; Punch 3 compresses the center shaping to specified drawing pressure, draw end after, punch 3 is reset to the sky condition respectively with blank holder 8; Interior die 2 up making are accomplished the product that draws that draws, take out spread material, and interior die 2 resets; One time diesel engine oil pan draws end, the beginning quick die change.At first punch 3 descending and interior dies 2 are contacted, unclamp the punch screw, interior loose piece 16 is up, and end cylinder is up; Die 2 in ejecting, special hanger unload lower punch 3 and interior die 2, lift another group punch 3 again and place in the chamber of die 1 die 2 normotopias in being made automatically by back-up block 13 with interior die 2; Interior loose piece 16 is descending, tightens up punch 3 with the punch screw, can suppress another kind of oil sump after null is normal, and quick die change finishes; Thereby realize the purpose of two different oil sumps of a mold pressing system, its quick die change process simple possible does not need two molds; Need not debug mould again, save time, laborsaving, province's expense, and can be rapidly and efficiently.
In above-mentioned drawing process; Delay muscle 12 the course of work: after spread material places die 1 working surface, blank holder 8 descending binders, binder is that three places delay muscle 12 at first; Make material plane should become U-shaped binder state; Punch 3 gets into the state that draws, and material flows along die cavity, and the material through delaying the district is then flowed to prolong by the plane and becomes U-shaped and flow; Wherein placing the material that delays muscle 12 two ends then is to delay power with 0 transformation difference and delay the power amplification to stage casing constant voltage maximum delaying gradually the deformed area, makes the power of delaying from 0 to the peaking smooth transition, prevents that material from flowing to produce sudden change and drawing crack; Delaying the power size realizes through height and sideshake that adjustment delays muscle 12; Under the effect that delays the yarn system, make equal spoon property, the order at material flow adjustment to each position, prevent wrinkling, the drawing crack of product; Improving the product rigidity and prevent distortion, is the important measures of satisfying product quality.
The assemble flow of diesel engine oil pan drawing die of the present invention is: load onto guide pillar 9 and pressing plate 4 at die 1, pack into the inner chamber of die 1 of interior die 2; Load onto guide pin bushing 7 and pressing plate 4 at blank holder 8, load onto short guide plate 10, long guide plate 14; Be inserted in blank holder 8 liftings at die 1, be inserted in punch 3 liftings in the corresponding inner chamber of blank holder 8; Detect and adjust concavo-convex mould around the gap evenly qualified after, on short guide plate 10, long guide plate 14, join and make dowel hole, be pressed into alignment pin and lock the mould relative position.
The produce oil process of drain pan of oil sump drawing die of the present invention is: this oil sump drawing die is applicable to double action hydraulic press, is adjusted to two moving functional statuses to equipment earlier; After upper table is raised to desired height, be installed in mould on the relevant position of lower table face; The end face of the interior loose piece 16 descending contact punch installing plates 11 of upper table is proofreaied and correct the back and is anchored on interior loose piece 16 to punch 3 with screw; Outer loose piece 17 descending contact blank holder 8 end faces of upper table, the correction back tightens up blank holder 8 with screw and is fixed in outer loose piece 17; After the two conditions of starting building of dry running mould were normal, blank holder 8, punch 3 went upward to desired height separately respectively; At punch-die working surface spraying self-control lubricant; Place spread material die 1 working surface relevant position correctly to locate; Blank holder 8 descending binders are exerted pressure to specified pressure-pad-force; The punch 3 descending spread material center shapings that compress, mould gets into and draws state, exerts pressure to specified drawing pressure, forces spread material to flow in order to die cavity and draws, until punch travel end of a period moulding; After the off-load, the punch 3 up sky condition positions that are reset to, the blank holder 8 up sky condition positions that are reset to; End cylinder working in the driving arrangement lower table, end cylinder push rod is up to be pushed up to backing plate 15, and die 2 up ejecting are accomplished the product that draws that draws in making, and get and draw product, and die 2 resets in the end cylinder off-load.
The spread material of drawing oil sump of the present invention adopts flanging to add the technical scheme that delays a drawing and moulding, has prevented that the spread material drawing process from wrinkling or crackle taking place; The employing blank holder inserts and the die plate insert structure improves wear-resisting compressive property; Adopt guide pillar, the compound positioning and guiding yarn system of guide plate, guarantee the correctness and the stability of drawing process; Adopt punch-die working surface spraying self-control lubricant,, effectively improve parts quality and yield rate to improve drawing frictional property and temperature is drawn in reduction.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (3)
1. a diesel engine oil pan drawing method is characterized in that, may further comprise the steps:
Place the relevant position of die working surface correctly to locate spread material;
The said spread material of the descending pressure of blank holder to specified pressure-pad-force, die plate insert and blank holder were inserted and were compressed this moment;
Descending said spread material center shaping to the specified drawing pressure that compresses of punch;
The product that draws that draws completion is unloaded, and said punch and blank holder reset respectively;
Utilize back-up block and interior loose piece to accomplish quick die change.
2. diesel engine oil pan drawing method as claimed in claim 1 is characterized in that, said back-up block and the interior loose piece completion quick die change of utilizing specifically comprises the following steps:
Descending and the said interior die of said punch is contacted, unclamp the punch screw;
Interior loose piece is up, and end cylinder is up, ejects interior die, and special hanger unloads said punch and interior die;
Lift another group punch and interior die again and carry out die change.
3. diesel engine oil pan drawing method as claimed in claim 2 is characterized in that, said another group punch and interior die of lifting again carries out die change and specifically comprise the following steps:
Lift another group punch and interior die and place in the chamber of said die, make said interior die normotopia automatically by said back-up block;
Loose piece is descending in said, tightens up punch with said punch screw;
Promptly accomplish the step of changing the oil sump drawing die after null is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110218123A CN102327942A (en) | 2008-08-12 | 2008-08-12 | Drawing method of oil pan of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110218123A CN102327942A (en) | 2008-08-12 | 2008-08-12 | Drawing method of oil pan of diesel engine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810073743A Division CN101648242A (en) | 2008-08-12 | 2008-08-12 | Drawing die of diesel engine oil sump and drawing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102327942A true CN102327942A (en) | 2012-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110218123A Pending CN102327942A (en) | 2008-08-12 | 2008-08-12 | Drawing method of oil pan of diesel engine |
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| Country | Link |
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| CN (1) | CN102327942A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264103A (en) * | 2013-05-29 | 2013-08-28 | 昆山市润苏物资有限公司 | Air guide cone drawing mould |
| CN103331371A (en) * | 2013-05-27 | 2013-10-02 | 滁州凯旋模具制造有限公司 | Oil sump stamping die and mounting structure |
| CN106563721A (en) * | 2015-09-25 | 2017-04-19 | 浙江方圆机电设备制造有限公司 | Oil pan drawing molding technique |
-
2008
- 2008-08-12 CN CN201110218123A patent/CN102327942A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331371A (en) * | 2013-05-27 | 2013-10-02 | 滁州凯旋模具制造有限公司 | Oil sump stamping die and mounting structure |
| CN103331371B (en) * | 2013-05-27 | 2016-08-10 | 滁州凯旋模具制造有限公司 | A kind of oil sump diel and mounting structure |
| CN103264103A (en) * | 2013-05-29 | 2013-08-28 | 昆山市润苏物资有限公司 | Air guide cone drawing mould |
| CN106563721A (en) * | 2015-09-25 | 2017-04-19 | 浙江方圆机电设备制造有限公司 | Oil pan drawing molding technique |
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Application publication date: 20120125 |