CN102554579A - Rapid forming process for plunger sleeve of oil pump - Google Patents
Rapid forming process for plunger sleeve of oil pump Download PDFInfo
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- CN102554579A CN102554579A CN2012100409207A CN201210040920A CN102554579A CN 102554579 A CN102554579 A CN 102554579A CN 2012100409207 A CN2012100409207 A CN 2012100409207A CN 201210040920 A CN201210040920 A CN 201210040920A CN 102554579 A CN102554579 A CN 102554579A
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Abstract
The invention discloses a rapid forming process for a plunger sleeve of an oil pump. The rapid forming process is characterized by comprising the following steps of: screening steel and phosphating the steel; cutting the phosphated steel by using a forming machine to obtain a blank with a required length; fixing the cut blank on a mold of the forming machine by using a mechanical arm, wherein the mold of the forming machine is provided with fixed dies and moving dies, which correspond to each other and are at least provided with five stations, and corresponding stamping needles are arranged on the moving dies from the second station; and performing cold heading at the five stations to form the plunger sleeve product of the oil pump. By the process, the plunger sleeve of the oil pump can be rapidly manufactured, the waste of the steel is avoided, raw materials are greatly saved, and the production efficiency is improved.
Description
Technical field
The present invention relates to the moulding process of a kind of fuel feed pump plunger cover, particularly be the moulding process that is used for the fuel feed pump plunger cover on the automobile.
Background technology
At present, the fuel feed pump plunger cover on the automobile all is to adopt steel forge hot or cold extrusion to process the cylindrical shape at present, because plunger bushing will be connected with miscellaneous part; Just need on plunger bushing, make the hole of different apertures and diverse location, in general, all be that steel are cut hot-forging forming as required; Repeatedly turning is carried out in the very big requirement of its allowance, boring, and milling machine is accomplished; This technology is the most traditional a kind of technology, and the very complicated speed of its operation is slow, and efficient is poor; And precision is low, has wasted a large amount of steel raw materials simultaneously, has been not suitable for the epoch of modern industrialization production and energy savings.Also the someone wanted to adopt pressing equipment and cold extruding technique that steel are struck out the required outer shape and the location hole of installation, but so also can produce various problems, if accomplish like a punching press of pressing equipment; Its huge stamping press can be with the steel avulsion or with problems such as punching needle thrust, owing to this problem can occur, almost the no one once strikes out merits and demerits; So seldom adopt the pressing equipment one-shot forming to make,, also want multiple working procedure punching press or the moulding of extruding ability external form even utilize cold extruding technique and pressing equipment can stamp out the general profile of plunger bushing; And the every extruding of product one is less important take product away the nodularization phosphatization from operation after; Through the next process extrusion modling, its cylindrical endoporus allowance of success back also is very big again, and the higher operation of processing cost is very loaded down with trivial details; Its tight cap hole and plunger hole also are to utilize drilling machine or drill gun that the steel blank is fixedly holed; This boring method undoubtedly can produce a lot of manufacturing procedures, material and cost of labor waste; Lack under the also expensive situation at the high steel of existing cost of labor nowadays, this method neither optimal technology.
Summary of the invention
In view of the deficiency that background technology exists, the technical problem that the present invention will solve provides a kind of quick shaping process of not wasting the fuel feed pump plunger cover that steel again can rapid shaping.
For this reason, the present invention adopts following technical scheme to realize: a kind of quick shaping process of fuel feed pump plunger cover is characterized in that comprising the steps:
A), the screening steel, and steel are carried out phosphatization;
B), the steel after the phosphatization are cut through make-up machine, obtain the blank of required length;
C), the blank after cutting is fixed on the mould of said make-up machine through manipulator; The mould of said make-up machine has fixed half and moving half; Fixed half and moving half is corresponding each other, and the fixed half and moving half of said mutual correspondence is provided with five stations at least, and the dynamic model of said second station, the 3rd station is provided with the gross porosity punching needle; The dynamic model of the 4th station and the 5th station is provided with the pore punching needle, and on the dynamic model of the 5th station, is provided with waist shape punching needle;
D), blank carries out quick cold-heading through the fixed half and moving half of first station and becomes the middleware with arc transition step;
E), after the quick cold-heading of fixed half and moving half of middleware through second station and the 3rd station, form crude green body with step and gross porosity;
F), crude green body is through the cold-heading of the fixed half and moving half of the 4th and the 5th station; Wherein each station is through after the cold-heading; Its workpiece is transferred on the cover half of next station through manipulator fast; And in cold-heading, add lubricating oil, so just form to have the hole in different apertures and on step, form fuel feed pump plunger and overlap product with mounting hole.
Also be provided with the 6th station on the said make-up machine, the dynamic model of said the 6th station is provided with said pore punching needle.
Also be provided with the 7th station on the said make-up machine, the dynamic model of said the 7th station is provided with said waist shape punching needle.
Before the said step a), can carry out spheroidizing, to improve pliability just now to steel.Among the present invention, adopt the fixed half and moving half of at least five stations to cooperate, pass through the effect of punching needle on the setting station, make dynamic model carry out cold-heading just now on the active and inactive mold successively with manipulator; Therefore, when steel were stretched, cold-heading became to set the hole of shape and different apertures diverse location again; Protected punching needle can not wrecked like this, workpiece remains intact again, neither wastes steel; Fast convenient simultaneously, plastic 50 the plunger bushing products of per minute have greatly improved production efficiency.
Description of drawings
Combine accompanying drawing to further describe relevant details of the present invention below again.
Fig. 1 is the blank view of the present invention after cutting on the make-up machine;
Fig. 2 is the structural representation of the present invention after the first station cold-heading;
Fig. 3 is the structural representation of the present invention after the second station cold-heading;
Fig. 4 is the structural representation of the present invention after the 3rd station cold-heading;
Fig. 5 is the structural representation of the present invention after the 4th station cold-heading;
Fig. 6 is the structural representation of the present invention after the 5th station cold-heading;
Fig. 7 is the structural representation of the present invention after the 6th station cold-heading;
Fig. 8 is the structural representation of the present invention after the 7th station cold-heading;
Fig. 9 is the plan structure figure of Fig. 8 after the cold-heading of the present invention.
The specific embodiment
With reference to accompanying drawing, the quick shaping process of this fuel feed pump plunger cover at first will screen steel; Wherein 20GrMn steel, No. 45 steel, 20GrMnTi steel and the A3 steel capital are row of screening, are example with the A3 steel, because A3 steel itself just has enough pliabilitys; Thereby, make the surface of steel obtain an oil reservoir as long as the A3 steel that screens is carried out phosphatization, be used for protecting mould; Prevent that mould from producing high temperature in the cold-heading process, and prevent that steel surface from being pulled, keep the smoothness of steel surface; Then the A3 steel after the phosphatization are cut on make-up machine, obtain the blank of Len req, shown in figure one.Blank after cutting is fixed on the mould of said make-up machine through manipulator; The mould of said make-up machine has fixed half and moving half; Fixed half and moving half is corresponding each other, and the fixed half and moving half of said mutual correspondence is provided with seven stations, and the dynamic model of said second station, the 3rd station is provided with the gross porosity punching needle; The dynamic model of the 4th station and the 5th station is provided with the pore punching needle, and on the dynamic model of the 5th station, is provided with waist shape punching needle; After steel cut and finish; After transferring on the cover half of make-up machine first station dynamic model by first station through manipulator fast and carrying out cold-heading; Just form middleware with arc transition step 1; After the quick cold-heading of fixed half and moving half of middleware through second station and the 3rd station, form crude green body with step 2 and gross porosity 3; Crude green body is through the cold-heading of the fixed half and moving half of the 4th and the 5th station, and just formation has the hole 3,4 in different apertures and on step 2, forms the workpiece with mounting hole 5, above-mentioned workpiece; Every through after the station cold-heading; All adopt manipulator to transfer to fast on the cover half of next station, and in cold-heading, add lubricating oil, the quality that this lubricating oil requires is higher; The general PB-50 type intense beam oil that adopts; This intense beam oil originates from Kunshan, Jiangsu three and reaches company of extraordinary oily Co., Ltd, all can purchase on the market, and the intense beam oil of this model could be to carrying out effective lubricating between punching needle and the steel; With avoid punching needle in the return process by the trouble that fractureed, and mould cooled off.When after the 5th station cold-heading, the hole depth of pore 4 is generally more shallow, wants to become darker deep hole, again in the 6th station cold-heading; Therefore, on said make-up machine, also be provided with the 6th station, the dynamic model of said the 6th station is provided with said pore punching needle; Through the cold-heading of the 6th station, just form the darker pore of hole depth 4 like this, certainly; Also can adopt drilling machine that it is holed in this step, after all, at the raw material just now of this waste seldom.After cold-heading through five stations; If 2 mounting hole 5 is not by cold-heading molding on the step; The 7th station is set on make-up machine again; And on the dynamic model of the 7th station, be provided with waist shape punching needle, like this through the cold-heading of the 7th station, just become the fuel feed pump plunger cover product that has different apertures 3,4 and on step 2, have mounting hole 5.Certainly also can adopt the method moulding of boring, also be less at this feed consumption; Above-mentioned pore 4 is plunger hole, and mounting hole 5 is tight cap hole.This moulding process is placed on the make-up machine as long as will screen good blank, through behind each station, just become required fuel feed pump plunger cover product, very quick and convenient, and can not waste the steel raw material.Described make-up machine is seven station precision component high-energy-rate forming machines, can both buy in the producer that produces make-up machine, and all there is production in springtime mechanical industry joint-stock company like Shanghai.
In addition, when the steel of screening are 20GrMn, No. 45 steel, 20GrMnTi steel,, then need carry out first spheroidizing,, adopt above-mentioned technology again, can reach same effect to improve the pliability of steel with regard to these steel because these pliabilitys just now are relatively poor.
Claims (4)
1. the quick shaping process of a fuel feed pump plunger cover is characterized in that comprising the steps:
A), the screening steel, and steel are carried out phosphatization;
B), the steel after the phosphatization are cut through make-up machine, obtain the blank of required length;
C), the blank after cutting is fixed on the mould of said make-up machine through manipulator; The mould of said make-up machine has fixed half and moving half; Fixed half and moving half is corresponding each other, and the fixed half and moving half of said mutual correspondence is provided with five stations at least, and the dynamic model of said second station, the 3rd station is provided with the gross porosity punching needle; The dynamic model of the 4th station and the 5th station is provided with the pore punching needle, and on the dynamic model of the 5th station, is provided with waist shape punching needle;
D), blank carries out quick cold-heading through the fixed half and moving half of first station and becomes the middleware with arc transition step;
E), after the quick cold-heading of fixed half and moving half of middleware through second station and the 3rd station, form crude green body with step and gross porosity;
F), crude green body is through the cold-heading of the fixed half and moving half of the 4th and the 5th station; Wherein each station is through after the cold-heading; Its workpiece is transferred on the cover half of next station through manipulator fast; And in cold-heading, add lubricating oil, so just form to have the hole in different apertures and on step, form fuel feed pump plunger and overlap product with mounting hole.
2. the quick shaping process of fuel feed pump plunger cover according to claim 1 is characterized in that on said make-up machine, also being provided with the 6th station, and the dynamic model of said the 6th station is provided with said pore punching needle.
3. the quick shaping process of fuel feed pump plunger cover according to claim 2 is characterized in that on said make-up machine, also being provided with the 7th station, and the dynamic model of said the 7th station is provided with said waist shape punching needle.
4. the quick shaping process of fuel feed pump plunger cover according to claim 1 is characterized in that before the said step a), can carry out spheroidizing to steel, to improve pliability just now.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100409207A CN102554579A (en) | 2012-02-20 | 2012-02-20 | Rapid forming process for plunger sleeve of oil pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100409207A CN102554579A (en) | 2012-02-20 | 2012-02-20 | Rapid forming process for plunger sleeve of oil pump |
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| CN102554579A true CN102554579A (en) | 2012-07-11 |
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| CN2012100409207A Pending CN102554579A (en) | 2012-02-20 | 2012-02-20 | Rapid forming process for plunger sleeve of oil pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659175A (en) * | 2012-09-25 | 2014-03-26 | 上海电装燃油喷射有限公司 | Forging method for preventing cracks of plunger bushing in diesel engine fuel oil injection pump |
| CN105397419A (en) * | 2015-12-02 | 2016-03-16 | 无锡威孚马山油泵油嘴有限公司 | Plunger bushing processing technique |
| CN106378632A (en) * | 2016-10-19 | 2017-02-08 | 扬州星月燃油喷射有限公司 | Precise forming mechanism of oil pump oil mouth plunger sleeve |
| CN109013996A (en) * | 2018-09-06 | 2018-12-18 | 宁波思明汽车附件有限公司 | A kind of cold-heading molding valve cock and its moulding process |
| CN109158838A (en) * | 2018-09-28 | 2019-01-08 | 浙江三鸥机械股份有限公司 | The manufacturing method of drill chuck drill body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2794664Y (en) * | 2005-05-10 | 2006-07-12 | 刘生良 | Plunger sleeve blank |
| CN101618422A (en) * | 2009-07-17 | 2010-01-06 | 宁波安拓实业有限公司 | Manufacturing method of internal jacket |
| CN101972927A (en) * | 2010-10-17 | 2011-02-16 | 余成巧 | Fast machining method for forming deep holes on steel |
| CN102069348A (en) * | 2010-11-19 | 2011-05-25 | 宁波行一汽车零部件有限公司 | Method for manufacturing hose connector core |
| CN102152061A (en) * | 2010-11-29 | 2011-08-17 | 宁波安拓实业有限公司 | Process for manufacturing outer sleeve blanks |
| CN102152063A (en) * | 2010-11-29 | 2011-08-17 | 宁波安拓实业有限公司 | Process for manufacturing steel bundle terminal blank |
-
2012
- 2012-02-20 CN CN2012100409207A patent/CN102554579A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2794664Y (en) * | 2005-05-10 | 2006-07-12 | 刘生良 | Plunger sleeve blank |
| CN101618422A (en) * | 2009-07-17 | 2010-01-06 | 宁波安拓实业有限公司 | Manufacturing method of internal jacket |
| CN101972927A (en) * | 2010-10-17 | 2011-02-16 | 余成巧 | Fast machining method for forming deep holes on steel |
| CN102069348A (en) * | 2010-11-19 | 2011-05-25 | 宁波行一汽车零部件有限公司 | Method for manufacturing hose connector core |
| CN102152061A (en) * | 2010-11-29 | 2011-08-17 | 宁波安拓实业有限公司 | Process for manufacturing outer sleeve blanks |
| CN102152063A (en) * | 2010-11-29 | 2011-08-17 | 宁波安拓实业有限公司 | Process for manufacturing steel bundle terminal blank |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659175A (en) * | 2012-09-25 | 2014-03-26 | 上海电装燃油喷射有限公司 | Forging method for preventing cracks of plunger bushing in diesel engine fuel oil injection pump |
| CN105397419A (en) * | 2015-12-02 | 2016-03-16 | 无锡威孚马山油泵油嘴有限公司 | Plunger bushing processing technique |
| CN105397419B (en) * | 2015-12-02 | 2017-06-13 | 无锡威孚马山油泵油嘴有限公司 | Plunger bushing processing technology |
| CN106378632A (en) * | 2016-10-19 | 2017-02-08 | 扬州星月燃油喷射有限公司 | Precise forming mechanism of oil pump oil mouth plunger sleeve |
| CN109013996A (en) * | 2018-09-06 | 2018-12-18 | 宁波思明汽车附件有限公司 | A kind of cold-heading molding valve cock and its moulding process |
| CN109158838A (en) * | 2018-09-28 | 2019-01-08 | 浙江三鸥机械股份有限公司 | The manufacturing method of drill chuck drill body |
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Application publication date: 20120711 |