CN102039361A - Composite extrusion forge forming method for automobile flange fork - Google Patents
Composite extrusion forge forming method for automobile flange fork Download PDFInfo
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- CN102039361A CN102039361A CN2009101972940A CN200910197294A CN102039361A CN 102039361 A CN102039361 A CN 102039361A CN 2009101972940 A CN2009101972940 A CN 2009101972940A CN 200910197294 A CN200910197294 A CN 200910197294A CN 102039361 A CN102039361 A CN 102039361A
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Abstract
The invention relates to a manufacturing method of automobile parts, in particular to a composite extrusion forge forming method for an automobile flange fork. The cylindrical steel is blanked and heated and subject to forging on four sequential stations of blank making, pre-forging, final forging and trimming on a forging machine tool, wherein the pre-forging process is: forging the blank into two symmetrical vertical-sheet ear forks, a round-bottom horizontal one and a vertical one in upper and lower models; the final forging process is: further forging in the upper and lower models to obtain accurate sizes; the trimming process is: cutting the redundant flash extruded from the joint of the upper and lower models to finish the final forge formed product; and the blank making process is: performing composite extrusion forging on the heated bar in a mould to obtain a flange plate and a concave part with a lower opening facing downward, wherein the two sides of the concave part are in the shape of semi-circular vertical blocks. By adopting the invention, the equipment load is not increased in the process of forging to obtain a saddle-shaped blank, the material utilization rate is improved, the equipment investment and power consumption are saved, the product quality is improved, the processing cost is lowered, and the environmental protection is facilitated.
Description
(1) technical field
The present invention relates to a kind of manufacturing processing method of auto parts and components, particularly relate to the compound crowded forging forming processing method of automobile flange york part.
(2) background technology
Flange york is one of important vital part that is connected with splined shaft in the automotive transmission, transmits the moment of torsion of engine and bears crooked combined load.At present, whole world truck, heavy truck, motor bus and other various vehicle transmission systems all adopt the drive disk assembly of this flange york as key, therefore market demand is very big, and its processing technology changes slightly, and cost has change will cause and produce great market clout and economic benefits slightly.
This product is the shape of a saddle, and two fork ears that are disk are erect on bilateral symmetry ground, two circular holes of machined on two fork ears, and the central authorities of two fork ears are one eats dishes without rice or wine more greatly, is called prong, and the bottom is a circular bottom plate flange that floor space is bigger.This part stress intensity is big, and the cross section changes bigger again, and at present domestic general manufacturing firm adopts the die forging production technology to be processed into one earlier to be shape of a saddle forging, and then machine adds two circular holes and flange processing screw hole and finishes the manufacturing production of part on two fork ears.
So far, the technology of processing flange york both at home and abroad is at first the steel bar of cylinder to be blocked blanking, heating, is forging the forging and pressing of carrying out four stations on the bed then: base material, blocking, finish-forging and side cut.
Described blocking operation is the two perpendicular block fork ears of symmetry that forge into a round bottom face-flange and hold up in upper and lower model;
Described finish-forging operation is further to forge and press in upper and lower model to accurate dimensions;
Described side cut operation is that unnecessary material is extruded overlap by the commissure of upper and lower mould, and a circle excision, finishes final forging forming product.
Traditional Forging Technology first step base material is, vertical heating bar from the axis direction jumping-up, and then is moved into the second blocking station.But the blank that slightly is the waist drum shape behind jumping-up forges and presses one station of back quickly and changes near the final products shape, the deflection of blank in the second road mould is very big, need applied pressure bigger, and the overlap that squeezes out is inhomogeneous, the overlap amount is bigger, its stock utilization is lower, generally only reaches 70%, therefore, through groping for many years, a kind of ameliorative measure had appearred in recent years---little loss die forging processing technology.
Described little loss die forging processing technology, it is characterized in that, cylindrical bar forged into through preforming be straw hat shape blank with a disk, the disk of straw hat shape blank is close with the circular bottom plate flange of final products flange york just, therefore, alleviated the workload of the pre-forging and pressing of later process, promptly reduced the deflection in mould slightly, stock utilization through calculating this processing technology can reach 75%, this method is accepted than the multi-user, author Wang Yihua is published in China Machine Press with outstanding design of forging die example, in 2009.1 editions " design of forging die technology and example ", is disclosed in the 146-148 page or leaf.
Use measuring and calculating through reality, the more existing tradition forging and pressing of little loss die forging processing technology processing method is progressive to some extent, but, one stock utilizations there is also a desire for further and improve, in addition, in the mould of second station, the deflection of blank is still bigger, gone out middle big breach by forging and pressing, sub-material once by the solid in the middle of the straw hat shape, deformation becomes the fork ear of two risers in both sides, the forging force that needs is still bigger, and the size of forging machine tool tonnage causes the price of equipment to differ greatly, and the electric energy of consumption also has than big-difference.The deficiency of summarizing its existence in a word is: 1. volume distribution or unreasonable in the processing, metal is difficult to be pressed into two fork ears of big prong, cause two fork ears should not have sufficient source with the place of material, formation folds, is not fully filled, produce a large amount of overlaps in the middle of the prong, increased resistance of deformation and projected area; 2. wasted material, increased the metal level projected area again, promptly the mould bearing load strengthens, and needs to select large equipment, and tonnage will increase the 1-2 level; 3. because that material is used is many, will shorten the service life of mould, Mould Machining and to forge cost also high; 4. equipment tonnage is big, has high input, power consumption is big.
Therefore, constantly pursuing the product high-quality, reducing energy consumption, the today that reduces cost, those skilled in the art there is also a desire for better forging processing technology and provides.
(3) summary of the invention
The purpose of this invention is to provide and a kind ofly can save material, simplify technology, reduce the process equipment tonnage, guarantee the automobile flange york part die forging Compound Extrusion precise forming processing method of product quality.
Purpose of the present invention is realized by following technical scheme:
A kind of compound crowded forging forming method of automobile flange york is at first blocked blanking, heating with cylindrical steel, carries out the forging and pressing of base material, blocking, finish-forging and four orders of side cut station then on forging machine tool;
Described blocking operation is two riser shapes of the symmetry ear fork that forges into a round bottom plane and hold up in upper and lower model;
Described finish-forging operation be in upper and lower model further the fork ear of forging and pressing flange base plate, middle prong and both sides to accurate dimensions;
Described side cut operation is the overlap excision of being extruded by the commissure of upper and lower mould unnecessary, finishes final forging forming product;
It is characterized in that: described base material process is, the bar of heating forged into have a flanged plate and the downward concave shape of lower opening in mould, and the character cut in bas-relief both sides are the perpendicular piece of semicircle.
Further, the distance of described blank concave shape central indentation is 130 to 70 millimeters.
Further again, the distance of described blank concave shape central indentation is 120 millimeters.
Further, the thickness of the perpendicular piece of described blank left and right sides semicircle is 80 to 50 millimeters.
Further, the height of the perpendicular piece of described blank left and right sides semicircle is 130 to 80 millimeters.
Further, the diameter of described blank flanged plate is 200 to 140 millimeters, and thickness is 24 to 14 millimeters.
Further again, the diameter of described blank flanged plate is 185 millimeters, 14 millimeters of thickness.
Adopt the technical program, bar is in heating back material deliquescing first, relatively easy forging and pressing machining deformation, therefore, by the technical program in the base material process, directly form a flanged plate with below be the concave shape that Open Side Down, it is not very difficult being similar to saddle-shaped shape, yet in follow-up forging and pressing process, owing to possessed the shape more close with final products, therefore needn't must adopt the forging and pressing means with the rigid sub-material of steel material in the middle of " straw hat " shape as original little loss die forging processing technology process more on this basis, extruding forging prong excess stock, only need on the blank of preliminarily forming, suitably apply forging force and just can finish the blocking operation in second road more like a cork, reach the required size of second operation work, the 3rd road finish-forging operation is also more easily carried out then, and product standard also more easily reaches.So needn't change very large-tonnage forging force moulding lower shoe flange of expense, can not cause two fork ears should not have sufficient source with the place of material, formation folds, is not fully filled, produce a large amount of overlaps in the middle of the prong, the bad phenomenon and the defective of resistance of deformation and projected area have been increased, needn't adopt the large-tonnage forging press, reduced equipment investment, reduced the consumption of the energy, only need forging equipment further meticulous forging and pressing on the basis of first one-step forming of corresponding tonnage, reach and satisfy the size and the specification requirement of final finished easily, improved product quality.
Beneficial effect of the present invention is: 1. because jumping-up preform operation of the present invention is processed in steel material heating back, and material is in softer state, therefore equipment does not strengthen load in the process that forges into the saddle blank; 2. adopt the present invention to save raw material greatly, also promptly improved the utilization rate of material greatly, the weight of general every automobile flange york is about the 6-10 kilogram, and the stock utilization of prior art is between 68 to 75%, and the utilization rate of material can reach between 85 to 90% behind employing the present invention; 3. owing in jumping-up preform operation, formed approximate saddle-shaped blank, have the shape more close with final products, required forging force needn't be very big during therefore follow-up progressively meticulous forging and pressing, reduce and saved the input of equipment, the consumption of investment and electric energy, in original process technology, the tonnage of forging press must be between 4000 to 5000 tons, and the tonnage of forging press only needs 2500 tons and can satisfy processing request behind employing the present invention, this shows equipment, the saving of energy aspect is very considerable, there is not the occasion of large-tonnage forging equipment more than 4000 tons for some, also can make the flange york part with less tonnage forging machine tool, reduce the appointed condition of making; 4. owing to formed approximate saddle-shaped blank in jumping-up base material process, do not occur in the following process significantly folding, being not fully filled, phenomenons such as a large amount of overlaps have improved product quality; 5. the mould work in-process is not subjected to excessive forging force, has prolonged the service life of mould, has reduced the forging processing cost; 6. equipment tonnage reduces, and the vibrating noise that produces in the forging and pressing is also corresponding to be reduced, the favorable environment protection.
(4) description of drawings
Fig. 1 is the forging forming method of prior art automobile flange york, the rod iron material front view that blocks;
Fig. 2 is the blank front view of Fig. 1 behind base material process jumping-up;
Fig. 3 is little loss die forging processing technology, the forging forming method of flange york, the rod iron material front view that blocks;
Fig. 4 be Fig. 3 through the base material process, form the blank front view of straw hat shape;
Fig. 5 is the compound crowded forging forming method of automobile flange york of the present invention, and the rod iron material front view that blocks can be shown by figure, and the length of rod iron material is short than Fig. 1, Fig. 3 person;
Fig. 6 be Fig. 5 through the base material process, the blank master who forms preliminary saddle looks and partly cuts open figure;
Fig. 7 is that figure is partly cutd open in the side-looking of Fig. 6;
Fig. 8 is the vertical view of automobile flange york;
Fig. 9 is that the left side of automobile flange york or the right side are looked and partly cutd open figure;
Figure 10 is the front view of automobile flange york;
Figure 11 is an automobile flange york forging forming method, the 3rd road finish-forging operation, the vertical view of mould;
Figure 12 is the compound crowded forging forming method of automobile flange york of the present invention, the main pseudosection of the first road base material process;
Figure 13 is the vertical view of Figure 12;
Figure 14 is the compound crowded forging forming method of automobile flange york of the present invention, carries out the operation schematic diagram that base material, blocking, three stations of finish-forging are operated on forging machine tool.
Among the figure, the 1st, the blocking station of flange york, the 2nd, the base material station of flange york, the 3rd, be the finish-forging station of flange york.
(5) specific implementation method
Below in conjunction with drawings and Examples the present invention is elaborated:
A kind of compound crowded forging forming method of automobile flange york is at first blocked blanking, heating with cylindrical steel, carries out the forging and pressing of base material, blocking, finish-forging and four orders of side cut station then on forging machine tool; Described blocking operation is the two perpendicular block fork ears of symmetry that forge into a round bottom plane and hold up in upper and lower model; Described finish-forging operation is, the fork ear of the prong of further forging and pressing flange base plate, centre and both sides is to accurate dimensions in upper and lower model, described side cut operation is the overlap excision of being extruded by the commissure of upper and lower mould unnecessary, finishes final forging forming product; Described base material process is, the bar of heating forged into have a flanged plate and the downward concave shape of lower opening in mould, and the character cut in bas-relief both sides are the perpendicular piece of semicircle.
The distance of described blank concave shape central indentation is 120 millimeters, and the thickness of the perpendicular piece of blank left and right sides semicircle is 77 millimeters, and the height fork ear of the perpendicular piece of blank left and right sides semicircle is 112.5 millimeters, and the diameter of blank flanged plate is 185 millimeters, 15 millimeters of thickness.
The forging forming method of flange york, comprise blanking, heating, metal material after the blanking is after heating, flatten, in the base mould, carry out compound upsetting squeeze, in the counterdie die cavity of sealing, just squeezing and forming product tape symmetry fork ear outside the prong, jumping-up forms the preform of approximate circle flange between upper and lower mould, then preform is placed directly in the blocker flange impression, make whole prefabricated component upper flange, two fork ears can keep flat into blocker, move downward by patrix metal is pressed into impression, then the forging upset is put into the finisher impression for 90 ° and carry out precise forming, and the excision overlap.
The forging forming method of flange york, wherein the mould structure of base material comprises upper die and lower die, steam vent, air discharge duct and jogger hole.Flatten back blank positive extrusion forming fork ear in the counterdie die cavity, pass through steam vent in extrusion process, air discharge duct is discharged the hot gas in the mould, can guarantee that two fork ears are full of well, flanged plate forms between the upper and lower mould of shaping mould, make difficult moulding flanged plate and the position moulding early of fork ear, eject by push rod in the jogger hole then.Put into blocker forging mould counterdie, flanged plate and fork ear all hit exactly at die cavity, guarantee that preform is consistent with the blocker forging mould, improve the flowing of metal, volume unreasonable distribution, the forging horizontal projected area that reduces of its blocker forging, the also corresponding forging equipment tonnage that reduces ejects by push rod in the blocker jogger hole then.Pre-forging upset is put into finish forging mould counterdie final molding for 90 °, guarantee that product is qualified.
In a word, the compound crowded forging forming method of automobile flange york of the present invention has adopted the moulding of Compound Extrusion base material to satisfy shaping rules such as the flowing of metal of final molding needs, volume distributions, equipment tonnage, and deformation mechanism is the compound combination of formation that forward extrusion and jumping-up are blended together.Adopt the present invention: forge into that equipment does not strengthen load in the process of saddle blank; Improved the utilization rate of material; Reduce and saved the consumption of input, investment and the electric energy of equipment, improved product quality; Cut down finished cost; The favorable environment protection.
Claims (7)
1. the compound crowded forging forming method of an automobile flange york is at first blocked blanking, heating with cylindrical steel, carries out the forging and pressing of base material, blocking, finish-forging and four orders of side cut station then on forging machine tool;
Described blocking operation is two forks of the symmetry ear that forges into a round bottom plane and hold up in upper and lower model;
Described finish-forging operation be in upper and lower model further the fork ear of forging and pressing flange base plate, middle prong and both sides to accurate dimensions;
Described side cut operation is the overlap excision of being extruded by the commissure of upper and lower mould unnecessary, finishes final forging forming product;
It is characterized in that: described base material process is, with the bar of heating in mould compound squeeze to forge into have a flanged plate and the downward concave shape of lower opening, the character cut in bas-relief both sides are the perpendicular piece of semicircle.
2. according to the compound crowded forging forming method of the described automobile flange york of claim 1, the distance that it is characterized in that described blank concave shape central indentation is 130 to 70 millimeters.
3. according to the compound crowded forging forming method of claim 1 or 2 described automobile flange yorks, the distance that it is characterized in that described blank concave shape central indentation is 120 millimeters.
4. according to the compound crowded forging forming method of the described automobile flange york of claim 1, it is characterized in that the thickness of the perpendicular piece of described blank left and right sides semicircle is 80 to 50 millimeters.
5. according to the compound crowded forging forming method of the described automobile flange york of claim 1, it is characterized in that the height of the perpendicular piece of described blank left and right sides semicircle is 130 to 80 millimeters.
6. according to the compound crowded forging forming method of the described automobile flange york of claim 1, the diameter that it is characterized in that described blank flanged plate is 200 to 140 millimeters, and thickness is 24 to 14 millimeters.
7. according to the compound crowded forging forming method of claim 1 or 6 described automobile flange yorks, the diameter that it is characterized in that described blank flanged plate is 185 millimeters, 14 millimeters of thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101972940A CN102039361A (en) | 2009-10-16 | 2009-10-16 | Composite extrusion forge forming method for automobile flange fork |
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| CN2009101972940A CN102039361A (en) | 2009-10-16 | 2009-10-16 | Composite extrusion forge forming method for automobile flange fork |
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| CN102039361A true CN102039361A (en) | 2011-05-04 |
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| CN102773387A (en) * | 2012-08-16 | 2012-11-14 | 大连大高阀门股份有限公司 | Forging method for flange type ball valve cover |
| CN102989950A (en) * | 2011-09-19 | 2013-03-27 | 上海交大中京锻压有限公司 | Forging process of automotive besides-star wheel |
| CN102989947A (en) * | 2012-10-22 | 2013-03-27 | 如皋市大生线路器材有限公司 | Compound insulator ball socket armor clamp forging and molding process |
| CN103302226A (en) * | 2012-03-16 | 2013-09-18 | 上海瑞尔实业有限公司 | Precise forging process for front upper arm part of car chassis suspension system |
| CN103433412A (en) * | 2013-08-30 | 2013-12-11 | 上海交大中京锻压有限公司 | Novel closed type blank discharging technology of thin-wall tendon deep upper opening narrow part |
| CN103447780A (en) * | 2013-08-30 | 2013-12-18 | 上海交大中京锻压有限公司 | Semi-closed type tripod flange blank ejection technique |
| CN104525816A (en) * | 2014-12-05 | 2015-04-22 | 万向钱潮传动轴有限公司 | Forging device and process for flange yoke of transmission shaft |
| CN104874713A (en) * | 2015-04-24 | 2015-09-02 | 浙江正昌锻造股份有限公司 | Continuous composite molding technique for oil injectors |
| CN105057557A (en) * | 2015-08-03 | 2015-11-18 | 重庆海獒精密锻造有限公司 | Forging molding technological method for multi-lug part |
| CN105458630A (en) * | 2015-12-25 | 2016-04-06 | 贵州航宇科技发展股份有限公司 | Manufacturing method for intermediate blank of F22 alloy bell-shaped cartridge receiver forged piece |
| CN106078119A (en) * | 2016-08-10 | 2016-11-09 | 北海明杰科技有限公司 | A kind of moulding process of fuel injector |
| CN107159831A (en) * | 2017-06-30 | 2017-09-15 | 陕西宏远航空锻造有限责任公司 | A kind of forging method of cross forging part |
| CN111545696A (en) * | 2020-05-13 | 2020-08-18 | 上海长特锻造有限公司 | Flange tube fork forging forming process and flange tube fork formed by using same |
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2009
- 2009-10-16 CN CN2009101972940A patent/CN102039361A/en active Pending
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| CN102989950A (en) * | 2011-09-19 | 2013-03-27 | 上海交大中京锻压有限公司 | Forging process of automotive besides-star wheel |
| CN103302226A (en) * | 2012-03-16 | 2013-09-18 | 上海瑞尔实业有限公司 | Precise forging process for front upper arm part of car chassis suspension system |
| CN103302226B (en) * | 2012-03-16 | 2015-07-15 | 上海瑞尔实业有限公司 | Precise forging process for front upper arm part of car chassis suspension system |
| CN102773387A (en) * | 2012-08-16 | 2012-11-14 | 大连大高阀门股份有限公司 | Forging method for flange type ball valve cover |
| CN102989947B (en) * | 2012-10-22 | 2015-05-06 | 如皋市大生线路器材有限公司 | Compound insulator ball socket armor clamp forging and molding process |
| CN102989947A (en) * | 2012-10-22 | 2013-03-27 | 如皋市大生线路器材有限公司 | Compound insulator ball socket armor clamp forging and molding process |
| CN103433412A (en) * | 2013-08-30 | 2013-12-11 | 上海交大中京锻压有限公司 | Novel closed type blank discharging technology of thin-wall tendon deep upper opening narrow part |
| CN103447780A (en) * | 2013-08-30 | 2013-12-18 | 上海交大中京锻压有限公司 | Semi-closed type tripod flange blank ejection technique |
| CN104525816A (en) * | 2014-12-05 | 2015-04-22 | 万向钱潮传动轴有限公司 | Forging device and process for flange yoke of transmission shaft |
| CN104874713A (en) * | 2015-04-24 | 2015-09-02 | 浙江正昌锻造股份有限公司 | Continuous composite molding technique for oil injectors |
| CN105057557A (en) * | 2015-08-03 | 2015-11-18 | 重庆海獒精密锻造有限公司 | Forging molding technological method for multi-lug part |
| CN105458630A (en) * | 2015-12-25 | 2016-04-06 | 贵州航宇科技发展股份有限公司 | Manufacturing method for intermediate blank of F22 alloy bell-shaped cartridge receiver forged piece |
| CN106078119A (en) * | 2016-08-10 | 2016-11-09 | 北海明杰科技有限公司 | A kind of moulding process of fuel injector |
| CN107159831A (en) * | 2017-06-30 | 2017-09-15 | 陕西宏远航空锻造有限责任公司 | A kind of forging method of cross forging part |
| CN111545696A (en) * | 2020-05-13 | 2020-08-18 | 上海长特锻造有限公司 | Flange tube fork forging forming process and flange tube fork formed by using same |
| CN111545696B (en) * | 2020-05-13 | 2022-01-11 | 上海长特锻造有限公司 | Flange tube fork forging forming process and flange tube fork formed by using same |
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Application publication date: 20110504 |