CN1046865A - Automobile transmission shaft universal-joint fork extrusion forging process and mould thereof - Google Patents
Automobile transmission shaft universal-joint fork extrusion forging process and mould thereof Download PDFInfo
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- CN1046865A CN1046865A CN 90103743 CN90103743A CN1046865A CN 1046865 A CN1046865 A CN 1046865A CN 90103743 CN90103743 CN 90103743 CN 90103743 A CN90103743 A CN 90103743A CN 1046865 A CN1046865 A CN 1046865A
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Abstract
The present invention is specially adapted to the making of automobile transmission shaft universal-joint fork and similar products.It comprises that fork-shaped is downward, the forcing press effect next time stroke with the manufacture craft of blank forward shunting no-draft forging moulding and mould accordingly therewith.Their advantage concentrates on: (one) no-draft forging moulding, reduce operation, and improve work efficiency; (2) the overlap metal loss reduces significantly, and materials rate improves more than 35%; (3) can reduce even eliminate draft angle, the forging surface roughness greatly reduces, the inherent quality height; (4) can extrude the hole of certain depth in solid hopkinson bar portion.
Description
The present invention relates to a kind of forging manufacture craft and mould thereof, be specially adapted to the making of automobile transmission shaft universal-joint fork.
" universal joint is in the research that can divide die forging process in the die " (И С Ц Е Д О В А Н И Е П Р О Ц Е С С А Ш Т А М П О В К И П О К О В О К В И of the Soviet Union " forging and pressing are produced " (К y З Н Е Ц Н О-Ш Т А М П О В О Ц Н О Е П Р О И З В О Д С Т В О) publication
О К К А Р Д А Н А В Ш Т А М П А Х С Р А З Ь Е М Н Ы М И М А Т Р И Ц А М И № 10,1970 Г .)
The manufacture craft of introducing in one literary composition that is used for automobile transmission shaft universal-joint fork, though also adopt extrusion die technology, be difficult under the forcing press effect complex structure and the automobile transmission shaft universal-joint fork that machining is difficult to finish is shaped by a no-draft forging of mould.Technology of introducing in this article and mould are only applicable to object simple in structure, are flat tabular and bar portion is solid universal-joint fork as fork, and this technology also will be aided with pressing process behind the no-draft forging base, and promptly level compacting finish-forging is shaped on another equipment.The die of this technology is a horizontal parting.Last lower cavity die system's employing pressing plate and screw lock desire to make lower cavity die separately, must unclamp screw earlier, and it is complicated too fat to move that the mold integral structure seems.
For overcoming the shortcoming of above-mentioned prior art, it is downward that the present invention discloses a kind of fork-shaped, the multidirectional precision die forging process and the mould thereof of a forward shunting extrusion molding.
This technology is applicable to the manufacturing of automobile transmission shaft universal-joint fork and like product.For this reason, the present invention adopts following two kinds of process technology schemes: first kind, adopt the bar blank, and fork-shaped is downward, a forward shunting extrusion molding.Blank adopts eddy-current heating or other few oxidation heating means heating, and heating-up temperature is determined according to material.The blank that heats places the die impression, as long as one stroke of press (once hitting) can be shaped blank no-draft forging, becomes required forging.Mold lubrication adopts colloidal graphite mixed with water, is injected in the impression surface equably with spray regime.Second kind, adopt the bar blank, fork-shaped is downward, and a forward shunting is squeezed into the fork-shaped head, and the workpiece that will have this fork-shaped head then places another pair mould, and its solid hopkinson bar portion is oppositely pushed, and can obtain to have the whole shaping forging of rod blank.If have only a forcing press, then finish for the first time above-mentioned first procedure, before second operation work begins, unload first pair of mould from forcing press, load onto second pair of mould, then, to have the workpiece heating of fork-shaped, place mould oppositely to push the workpiece after the heating, only need one stroke, can finish-forging shaping forging.Mold lubrication adopts colloidal graphite mixed with water, is injected in the impression surface equably with spray regime.
Above-mentioned two kinds of process programs, first kind of production that is suitable for the universal knuckle of various kart power transmission shafts, slip yoke and similar forging; Second kind of production that is suitable for various large and medium-sized truck drive shaft slip yokes and similar forging.
The mould structure of implementing contour forging technique of the present invention is: two excess metal tap holes of mould are arranged on the geometric center position of die fork center of die cavity line both sides, left-right symmetry (Fig. 3).Tap hole be shaped as circular arc to module centers line protuberance, its size is decided according to blank volume or quality precision.The two halves die of mould, is opened the mould device and is finished by having many linkages that free bearing, pin, screw shell, spring and piston rod constitute to open process by closure state.Vertically can divide die to form, link by free bearing, pin and hinged push rod and the oil cylinder piston bar that is fixed on below the press bench by die plate insert, taper Harvard piece.With the vertical drift that divides die to cooperate, be screwed on upper plate by trim ring, backing plate.When this mould was in position shown in Figure 1, two halves die closure constituted the sealing impression, and the bar blank that heats places the die impression, only needs one stroke of press just can obtain the universal-joint fork net-size forging.When the press ram backhaul, the backing-out punch piston rises, and hinged push rod can divide the die jack-up that makes progress.In the process of jack-up, opened the mould device by two simultaneously the two halves die is drawn back, take out forging.When oil cylinder piston moves down, the two halves die pulled down and be closed into sealing die impression, can begin next impulse stroke.
Compared with prior art, the present invention has the following advantages: (an one) no-draft forging is shaped, and its quality and performance meet the Ministerial Standard of the People's Republic of China, and work efficiency improves greatly; (2) the overlap metal loss reduces significantly, and stock utilization on average improves more than 35%; (3) can reduce even eliminate draft angle, the forging surface roughness greatly reduces, the inherent quality height; (4) can extrude the hole of certain depth in solid hopkinson bar portion.
The explanation of accompanying drawing drawing:
Fig. 1 can divide concave die figure for universal-joint fork no-draft forging.(1) is upper plate among the figure; (2) be the drift backing plate; (3) be the drift fixator, (4) are drift, and (5) and (15) are limited block, (6) be guide pin bushing, (7) be guide pillar, (8) are die plate insert, and (9) are Harvard's piece, (10) be the die circle, (11) be free bearing, (12) are pin, and (13) are hinged push rod, (14) for opening the mould device, (16) are forging.
Fig. 2 is for opening mould device structure chart.(17) free bearing among the figure, (18) pin, (19) piston rod, (20) screw shell, (21) spring, (22) free bearing.
Fig. 3 is the A-A cutaway view Amplified image of Fig. 1 (8).(23) are the excess metal tap hole among the figure.
Embodiment of the present invention can be described further by accompanying drawing.
Figure 1 shows that die structure dwg of the present invention, drift (4) is screwed on upper plate (1) by trim ring (3) and backing plate (2).Vertically can divide die to form, be connected by free bearing (11), pin (12) and the oil cylinder piston bar of hinged push rod (13) below being fixed on press bench by die plate insert (8) and taper Harvard piece (9).When the press ram backhaul, the piston of backing-out punch rises, and hinged push rod (13) will vertically can divide the die jack-up that makes progress, and be opened mould devices (14) by two simultaneously the two halves die is drawn back, and take out forging (16).When hinged push rod (13) when moving downward, the two halves die pulled down and be closed into sealing die impression with oil cylinder piston.Open mould device (14) and be fixed on Harvard's piece (9) by free bearing (17), can rotate around pin (18), the left end of piston rod (19) is a thread connection, and spring (21) is equipped with in right-hand member and screw shell (20) socket between them.This mould device is fixed on the die circle (10) its right-hand member by free bearing (22).Table 1 is classified the material-saving rate that adopts behind new technology of the present invention and the new die with old process mould comparison gained as.
Table 1
| Name of product | Steel that old technology consumes (kilogram) | Steel that new technology consumes (kilogram) | The material-saving rate |
| The BJ212 slip yoke | 2.35 | 1.54 | 34.5% |
| The BJ212 universal-joint fork | 2.05 | 1.23 | 40% |
Claims (3)
1, automobile transmission shaft universal-joint fork extrusion forging process is characterized by the bar blank that will heat and places the die impression, and fork-shaped is downward, at forcing press effect stroke (once hit) next time, blank forward shunting no-draft forging is configured as required forging; Or adopt the bar blank heat, fork-shaped is downward, a forward shunting is squeezed into the fork-shaped head, the workpiece that will have this fork-shaped head then places another pair mould, its solid hopkinson bar portion is oppositely pushed, finish whole shaping forging, mold lubrication adopts colloidal graphite mixed with water, is injected in film thorax surface equably with spray regime.
2, a kind of mould that uses the described automobile transmission shaft universal-joint fork extrusion forging process of claim 1, it is characterized by mould two excess metal tap holes (23) are arranged, they are arranged on geometric center, the symmetrical position of die fork center of die cavity line both sides, tap hole be shaped as circular arc to module centers line protuberance, its size is decided according to blank volume or quality precision; The two halves die of mould is finished by opening mould device (14) to open process by closure state.
3, according to claim 2 mould device is characterized by it and is made up of free bearing (17), pin (18), piston pin (19), screw shell (20), spring (21) and free bearing (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103743 CN1016944B (en) | 1990-05-21 | 1990-05-21 | Automobile transmission shaft universal-joint fork squeezing die forming technology and die set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103743 CN1016944B (en) | 1990-05-21 | 1990-05-21 | Automobile transmission shaft universal-joint fork squeezing die forming technology and die set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046865A true CN1046865A (en) | 1990-11-14 |
| CN1016944B CN1016944B (en) | 1992-06-10 |
Family
ID=4878223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103743 Expired CN1016944B (en) | 1990-05-21 | 1990-05-21 | Automobile transmission shaft universal-joint fork squeezing die forming technology and die set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1016944B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912937A (en) * | 2010-08-20 | 2010-12-15 | 张家港市广大机械锻造有限公司 | Method for forging large-scale die forgings by using small-tonnage hydraulic press |
| CN101972832A (en) * | 2010-11-19 | 2011-02-16 | 上海保捷汽车零部件锻压有限公司 | Detachable die precision forging die of reverse gear shaft of automatic gearbox of sedan |
| CN102009119A (en) * | 2010-10-15 | 2011-04-13 | 重庆富川机电有限公司 | Vertical double-end face forging process of primary driving tooth blank |
| CN102335707A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Large-diameter die with requirements on positions of inner ring and outer ring and processing method thereof |
| CN102528407A (en) * | 2011-12-23 | 2012-07-04 | 江苏森威精锻有限公司 | Method for processing integral concave mould of universal joint |
| CN102699186A (en) * | 2012-06-19 | 2012-10-03 | 无锡鼎宇机械科技有限公司 | Trimming and correcting system and correcting method of balance shaft |
| CN103121075A (en) * | 2013-03-07 | 2013-05-29 | 上海交通大学 | Hot forging method for transmission shaft yoke with horizontal yoke part |
| CN103240383A (en) * | 2013-05-08 | 2013-08-14 | 丹阳市天合精锻有限公司 | Hollow forging method of universal-joint slip yoke and special forging tool |
| CN103692152A (en) * | 2013-09-17 | 2014-04-02 | 马鞍山市益华液压机具有限公司 | Manufacturing method for withdrawing sleeve |
| CN104043764A (en) * | 2013-03-11 | 2014-09-17 | 本田技研工业株式会社 | Forging method and device thereof |
| CN105522086A (en) * | 2015-05-21 | 2016-04-27 | 安阳联达数控精密锻造股份有限公司 | Compound extruding-forging forming method of automobile transmission shaft slip yoke |
| CN105945535A (en) * | 2016-05-30 | 2016-09-21 | 方雪锋 | Transmission shaft flange yoke processing method |
| CN107639194A (en) * | 2016-07-20 | 2018-01-30 | 苏州昆仑重型装备制造有限公司 | Valve body forging mold |
| CN109226624A (en) * | 2018-08-29 | 2019-01-18 | 江阴南工锻造有限公司 | A kind of eccentric shaft and its moulding process |
| CN114309404A (en) * | 2021-12-21 | 2022-04-12 | 安徽安簧机械股份有限公司 | Closed forming method and forming system for thin-wall cylindrical part |
-
1990
- 1990-05-21 CN CN 90103743 patent/CN1016944B/en not_active Expired
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912937A (en) * | 2010-08-20 | 2010-12-15 | 张家港市广大机械锻造有限公司 | Method for forging large-scale die forgings by using small-tonnage hydraulic press |
| CN102009119A (en) * | 2010-10-15 | 2011-04-13 | 重庆富川机电有限公司 | Vertical double-end face forging process of primary driving tooth blank |
| CN102009119B (en) * | 2010-10-15 | 2013-06-26 | 重庆富川机电有限公司 | Vertical double-end face forging process of primary driving tooth blank |
| CN101972832A (en) * | 2010-11-19 | 2011-02-16 | 上海保捷汽车零部件锻压有限公司 | Detachable die precision forging die of reverse gear shaft of automatic gearbox of sedan |
| CN101972832B (en) * | 2010-11-19 | 2012-09-05 | 上海保捷汽车零部件锻压有限公司 | Detachable die precision forging die of reverse gear shaft of automatic gearbox of sedan |
| CN102335707A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Large-diameter die with requirements on positions of inner ring and outer ring and processing method thereof |
| CN102335707B (en) * | 2011-08-19 | 2014-08-27 | 江苏森威精锻有限公司 | Large-diameter die with requirements on positions of inner ring and outer ring and processing method thereof |
| CN102528407A (en) * | 2011-12-23 | 2012-07-04 | 江苏森威精锻有限公司 | Method for processing integral concave mould of universal joint |
| CN102528407B (en) * | 2011-12-23 | 2014-08-27 | 江苏森威精锻有限公司 | Method for processing integral concave mould of universal joint |
| CN102699186A (en) * | 2012-06-19 | 2012-10-03 | 无锡鼎宇机械科技有限公司 | Trimming and correcting system and correcting method of balance shaft |
| CN103121075A (en) * | 2013-03-07 | 2013-05-29 | 上海交通大学 | Hot forging method for transmission shaft yoke with horizontal yoke part |
| CN104043764B (en) * | 2013-03-11 | 2016-03-23 | 本田技研工业株式会社 | Forging processing method and device thereof |
| CN104043764A (en) * | 2013-03-11 | 2014-09-17 | 本田技研工业株式会社 | Forging method and device thereof |
| CN103240383A (en) * | 2013-05-08 | 2013-08-14 | 丹阳市天合精锻有限公司 | Hollow forging method of universal-joint slip yoke and special forging tool |
| CN103692152A (en) * | 2013-09-17 | 2014-04-02 | 马鞍山市益华液压机具有限公司 | Manufacturing method for withdrawing sleeve |
| CN103692152B (en) * | 2013-09-17 | 2016-08-24 | 马鞍山市益华液压机具有限公司 | A kind of manufacturing method for withdrawing sleeve |
| CN105522086A (en) * | 2015-05-21 | 2016-04-27 | 安阳联达数控精密锻造股份有限公司 | Compound extruding-forging forming method of automobile transmission shaft slip yoke |
| CN105945535A (en) * | 2016-05-30 | 2016-09-21 | 方雪锋 | Transmission shaft flange yoke processing method |
| CN107639194A (en) * | 2016-07-20 | 2018-01-30 | 苏州昆仑重型装备制造有限公司 | Valve body forging mold |
| CN109226624A (en) * | 2018-08-29 | 2019-01-18 | 江阴南工锻造有限公司 | A kind of eccentric shaft and its moulding process |
| CN114309404A (en) * | 2021-12-21 | 2022-04-12 | 安徽安簧机械股份有限公司 | Closed forming method and forming system for thin-wall cylindrical part |
| CN114309404B (en) * | 2021-12-21 | 2024-03-22 | 安徽安簧机械股份有限公司 | Closed forming method and system for thin-wall cylindrical part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1016944B (en) | 1992-06-10 |
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