CN101081409A - 125CC autobicycle gear shifting box main spindle multiple spline highly-effective cold extrusion processing technics - Google Patents
125CC autobicycle gear shifting box main spindle multiple spline highly-effective cold extrusion processing technics Download PDFInfo
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- CN101081409A CN101081409A CN 200710078685 CN200710078685A CN101081409A CN 101081409 A CN101081409 A CN 101081409A CN 200710078685 CN200710078685 CN 200710078685 CN 200710078685 A CN200710078685 A CN 200710078685A CN 101081409 A CN101081409 A CN 101081409A
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Abstract
The efficient cold upsetting-extruding process for machining spindle spline for gear box of 125CC motorcycle has the cold upsetting step for forming the spindle spline step and the cold extruding step for forming the spline combined into one step to form the spindle spline step and the spline. Compared with available technology, the present invention has one time raised machining efficiency, reduced machines, decreased machining cost, raised spline coaxiality and raised product quality.
Description
One, technical field:
The present invention relates to a kind of cold extrusion production method and process unit thereof of 125CC motorcycle gear box main spindle multiple spline.
Two, technical background:
Learn according to looking into newly: " forging technology " magazine, the fifth phase in 1999 was gone up publication, " square splined shaft die sinking cold-stamped mould design and technological experiment research " literary composition that Beijing Research Inst. of Aeronautic Material's Huang is write towards a kind of jade, wherein introduced 125CC motorcycle main shaft spline cold-extrusion technology, provide splined shaft cold extrusion full pattern photo, indicating is (two procedures).First procedure is the step in the middle of going out with garden bar cold-heading, and second operation work is the spline at cold extrusion step two ends.This also is the cold extrusion processing technics (hereinafter to be referred as current technology) of existing general 125CC motorcycle main shaft spline.
The weak point of current technology is, twice cold extrusion operation, and production efficiency is low, and production cost is higher.And, behind the first road cold-heading step, phosphating coat on the polished rod axle at its step two ends damages to some extent, if directly carry out the spline cold extrusion operation in second road after the cold-heading like this, the surface quality of the splined shaft that its cold extrusion is come out is not good enough, and because the phosphating coat on the polished rod axle damages to some extent, its cold extrusion drag increases, thereby the splined shaft that its cold extrusion is come out becomes curved increasing, product quality decline, if and dephosphorizationization is together again behind the first road cold-heading step, though can overcome the part drawback of cold-extruded spline appearance for the second time, but increase cost, and reduce efficient, increase the production cycle, reduced economic benefit.
Three, summary of the invention:
Purpose of the present invention is exactly in order to overcome two road cold-extrusion technologies of current technology, produce 125CC motorcycle gear box main spindle multiple spline inefficient, than low quality, than the drawback of poor benefit, and adopt cold-extrusion technology one, its step and spline while upsetting extrusion are come out, both improve work efficiency, saved cost, improved the quality, increased benefit and energy savings again.
The present invention is the garden steel material base spare after good with phosphatization, saponification, and in the composite die of cold upsetting, cold extrusion spline, a procedure extrudes spline with its garden steel material base spare cold-extruded simultaneously, and upsetting pressure goes out step, and work efficiency doubles.Spline linearity and axiality quality that the one procedure pushes out all are improved, thereby energy savings, save labor hour, save equipment investment, save cost, increase benefit.
Four, marginal data:
Fig. 1 is the good garden of a blanking steel billet spare (1).
Fig. 2 is the 125CC motorcycle gear box main spindle multiple spline blank (5) that the efficient cold-extruded of garden steel failed part (1) one procedure is pressed.
Fig. 3 is the mould assembling generalized section of the efficient cold extrusion 125CC of procedure motorcycle gear box main spindle multiple spline.
Five, the specific embodiment:
Process route of the present invention is:
1, blanking, chamfering; 2, phosphatization, saponification; 3, splined shaft with the level is upset, extruded to a procedure simultaneously in the upsetting squeeze compound die.
Further specify process route of the present invention and process unit thereof below in conjunction with legend.
At first be that garden rod iron material blanking is become garden steel billet spare (1), chamfering, car oxide skin then are again with its phosphatization, saponification.
Be with phosphatization thereafter, the garden steel billet spare (1) that saponification is good is placed in the following heading die (19) among Fig. 3, starting hydraulic press sliding table (6) then moves downward, long spline (4) shaping core rod (17) cold-extruded extrudes long spline (4), short spline (2) shaping core rod (22) cold-extruded extrudes short spline (2), the end of long spline (4) moves upward, locate by upper padding plate (11) axial length, and by last heading die (15) garden Zhou Dingwei radially, short spline (2) end moves downward, by positioning mandril (25) axial length location, following heading die (19) is the polished rod part of the short spline of garden Zhou Dingwei (2) radially; Like this, hydraulic press continues to move downward, and goes out step (3) with regard to upsetting pressure, finally is configured as 125CC motorcycle gear box main spindle multiple spline blank (5).
Next be that hydraulic press sliding table (6) moves up, after long spline (4) demoulding is intact, sliding table stops at as the state among Fig. 3, then the hydraulic press in the hydraulic press stationary work-table (35) eject the axle (34) move upward, promote tip-lever support (33), band step push rod (31), positioning mandril backing plate (26) and positioning mandril (25) and move upward, the 125CC motorcycle gear box main spindle multiple spline blank (5) that upsetting squeeze is good ejects short spline (2) shaping core rod (22) and following heading die (19) and the demoulding.
Next, die device of the present invention is specifically described in conjunction with legend.
As Fig. 3, rammer of the present invention, crowded compound cold extrusion device schematic diagram, 4 hydraulic machine columns (7) of the general hydraulic press of four posts, hydraulic press sliding table (6) and hydraulic press stationary work-table (35).The top mold frame of four post standard die sets is assembled by upper plate (8), 4 guides (10) and 4 upper jackets (9) combination; 4 guides (10) are perpendicular in upper plate (8) and rigidity tight fit four holes thereon, 4 upper jackets (9) and four guides (10) tight fit, and use several screws that upper jacket (9) and upper plate (8) are linked together respectively and carry out axial location.
Equally, also the top mold frame of four post standard die sets is the same as described above makes up assembling for the lower shoe of the following mould bases of four post standard die sets (32), 4 guide shafts (18) and 4 lower jackets (30); And, 4 guide shafts (18) respectively with concentric being slidingly matched of 4 guides (10).
With bolt upper plate (8) is stabilized on the hydraulic press sliding table (6) respectively, lower shoe (32) is stabilized on the hydraulic press stationary work-table (35).
Last garden tube (12) is concentric with following garden tube (27), and with screw its vertical respectively setting-in is fixed on upper plate (8) and the lower shoe (32).
Upper padding plate (11) is housed in the last garden tube (12), and upper padding plate (11) is gone up the same successively tapering of ecto-entad and is equipped with external carbuncle circle (13), middle circle stress (14), goes up heading die (15) and pressure long spline (4) shaping core rod (17) thereon.
1 °-3 ° of the hole tapers of external carbuncle circle (13), 1 °-3 ° of 1 °-3 ° of cylindrical taperings of middle circle stress (14) and hole tapers, 1 °-3 ° of the outer garden taperings of last heading die (15) and long spline (4) shaping core rod (17).With bolt upper press cover (16) is fixed on the garden tube (12), upper press cover (16) is fixed on external carbuncle circle (13) on the upper padding plate (11), thereby makes external carbuncle circle (13) by taper fit and with middle circle stress (14), last heading die (15) and long spline (4) shaping core rod (17) axial restraint.
From bottom to top be equipped with successively in the following garden tube (27): lower bolster (29), push rod garden frame (28), middle backing plate (24); In on the backing plate (24) the same successively tapering of ecto-entad be linked and packed down external carbuncle circle (23), down in circle stress (20), heading die (19), weak point spline (2) shaping core rod (22) and core rod packing ring (36) down.
The hole taper of following external carbuncle circle (23) is 1 °-3 °, and the cylindrical tapering and the hole taper of down middle circle stress (20) all are 1 °-3 °, and the outer garden tapering of following heading die (19) and short spline (2) shaping core rod (22) is 1 °-3 ° respectively.
With bolt lower cover (21) is fixedlyed connected with following garden tube (27), and will descend external carbuncle circle (23) axial restraint; Connect by taper fit, thereby will descend middle circle stress (20), following heading die (19) and short spline (2) shaping core rod (22) to be axially fixed in down within the garden tube (27).
Hydraulic press ejects on the axle (34) and is equipped with tip-lever support (33), is fitted with band step push rod (31), backstay backing plate (26) and positioning mandril (25) on it successively.
Six, advantage of the present invention:
1, the present invention will overlap the cold-heading pressure that cold extrusion dies are finished at two hydraulic presses and two with current technology Step and cold extrusion spline two procedures, only be improved to a hydraulic press with a mold in the worker Order just finishes the cold extrusion spline and cold-heading is presented a theatrical performance as the last item on a programme rank successfully, obviously, compare with current technology, this Bright is a huge progress, improves one times of effect, saves equipment investment and mould and invests half, phase Should save factory building and build ground, save extruding man-hour half, corresponding saving mass energy and supplementary product onsumption thereof, Save labour cost, thereby totally improved economic benefit.
2, the present invention has saved existing two procedures extruding owing to be to adopt procedure cold extrusion success The phosphatization expense.
3, twice workpiece spindle causing of the present invention's twice huge cold extrusion horizontal component having avoided existing two procedure cold extrusions to bring is to flexural deformation, therefore, the axial bending degree of the workpiece that the present invention's one procedure is finished is more much smaller to flexibility than the workpiece spindle of current technology, the splined shaft that institute of the present invention cold extrusion is come out has to the flexibility quality can be not calibrated and qualified more than 90%, and every correction of current technology palpus, the splined shaft that visible cold extrusion of the present invention is come out improves about 90 times to the flexibility quality than current technology.
Claims (4)
1,125CC motorcycle gear box main spindle multiple spline highly-effective cold extrusion processing technics, with garden rod iron material blanking, chamfering forms garden steel billet spare (1), with the outer garden of garden steel billet spare (1) car oxide skin, and phosphatization, saponification, it is characterized in that: last heading die (15) in the last garden tube (12) of the top mold frame on being assemblied in hydraulic press sliding table (6) and long spline (4) shaping core rod (17) lining, with following heading die (19) in the following garden tube (27) that is assemblied in the following mould bases on the hydraulic press stationary work-table (35) with lack spline (2) shaping core rod (22) lining, the efficient cold-heading of garden steel billet spare (1) one procedure with the phosphatization saponification after good, extruding is for having step (3), the 125CC motorcycle gear box main spindle multiple spline blank (5) of short spline (2) and long spline (4).
2, realize the required compound cold-heading of the described 1 25CC motorcycle gear box main spindle multiple spline highly-effective cold extrusion processing technics of claim 1, crowded device.It is characterized in that: in the four-column hydraulic press that 4 root posts (7) are arranged, the top mold frame of the standard four post mould bases that combined by upper plate (8), 4 upper jackets (9) and 4 guides (10) is fixed in bolt on the sliding table (6) of four-column hydraulic press; The following mould bases of the standard four post mould bases that combined by lower shoe (32), 4 guide shafts (18) and 4 lower jackets (30) is fixed in bolt on the stationary work-table (35) of four-column hydraulic press; 4 guides (10) respectively with 4 concentric being slidingly matched of guide shaft; Last garden tube (12) and following garden tube (27) concentric fits, and with bolt respectively setting-in be fixed on upper plate (8) and the lower shoe (32); Upper padding plate (11) is housed in the last garden tube (12), and ecto-entad equipped external carbuncle circle (13), middle circle stress (14) and last heading die (15) and long spline (4) finishing die (17) of tapering successively on the upper padding plate (11); With screw upper press cover (16) is fixed on the garden tube (12), upper press cover (16) compresses axial restraint with external carbuncle circle (13); From bottom to top be equipped with lower bolster (29), push rod garden frame (28) and middle backing plate (24) in the following garden tube (27) successively, on the middle backing plate (24), ecto-entad is equipped with down external carbuncle circle (23), down middle circle stress (20) and short spline (2) shaping core rod (22), following heading die (19) and core rod packing ring (36) successively; Hydraulic press ejects that axle (34) is equipped to eject pole socket (33), ejects and is equipped with band step push rod (31), positioning mandril backing plate (26) and positioning mandril (25) on the pole socket (33) successively; With screw lower cover (21) is fixed on down on the garden tube (27), lower cover (21) will descend external carbuncle circle (23) axial compression to fix.
3, according to the compound cold-heading of the described 125CC motorcycle gear box of claim 2 main spindle multiple spline highly-effective cold-heading extrusion-processing technology, crowded device, it is characterized in that: the range of taper of the taper fit of the Outer Taper of the taper fit of the Outer Taper of the internal taper hole of external carbuncle circle (13) and middle circle stress (14) and the internal taper hole of middle circle stress (14) and last heading die (15) and long spline (4) shaping core rod (17) all is 1 °-3 °; The internal taper hole of the internal taper hole of following external carbuncle circle (23) circle stress (20) with the taper fit of the Outer Taper of down middle circle stress (20) with down all is 1 °-3 ° with the range of taper of the taper fit of the Outer Taper of following heading die (19) and length spline (2) shaping core rod (22).
4, the product of being produced according to the described 125CC motorcycle gear box of claim 1 main spindle multiple spline highly-effective cold extrusion processing technics is characterized in that: the good especially high-quality 125CC motorcycle gear box main spindle multiple spline blank (5) of axiality that has step (3), short spline (2) and long spline (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710078685 CN101081409A (en) | 2007-07-04 | 2007-07-04 | 125CC autobicycle gear shifting box main spindle multiple spline highly-effective cold extrusion processing technics |
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| CN 200710078685 CN101081409A (en) | 2007-07-04 | 2007-07-04 | 125CC autobicycle gear shifting box main spindle multiple spline highly-effective cold extrusion processing technics |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780487A (en) * | 2010-02-11 | 2010-07-21 | 山西北方风雷工业集团有限公司 | Cold extrusion forming method of thin-walled inner cone splined hub |
| CN101712112B (en) * | 2009-11-03 | 2011-09-28 | 阎铁生 | Process for processing motor shaft of electric bicycle |
| CN102357552A (en) * | 2011-08-18 | 2012-02-22 | 南京通用电器有限公司 | Transmission shaft pressure square and method for manufacturing transmission shaft |
| CN102615126A (en) * | 2012-03-28 | 2012-08-01 | 重庆宗田科技发展有限公司 | Forming method for motorcycle starting shaft |
| CN104368744A (en) * | 2014-12-01 | 2015-02-25 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming technology of automobile door lock shaft and die structure for lock shaft forming |
| CN106623467A (en) * | 2017-02-23 | 2017-05-10 | 湖北名泰农机有限公司 | Cold extruder for machining sprayer shaft and machining process of sprayer shaft |
| CN106862460A (en) * | 2017-03-31 | 2017-06-20 | 西安建筑科技大学 | A kind of inaccessible finish forge device of step axis blank |
| CN107695625A (en) * | 2017-09-30 | 2018-02-16 | 江苏太平洋精锻科技股份有限公司 | Internal spline lock ring cold precision forging technique with back taper |
| CN114178801A (en) * | 2021-12-10 | 2022-03-15 | 浙江欧迪恩传动科技股份有限公司 | Cold shrinkage diameter die and process for machining universal joint spline shaft by using same |
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2007
- 2007-07-04 CN CN 200710078685 patent/CN101081409A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712112B (en) * | 2009-11-03 | 2011-09-28 | 阎铁生 | Process for processing motor shaft of electric bicycle |
| CN101780487A (en) * | 2010-02-11 | 2010-07-21 | 山西北方风雷工业集团有限公司 | Cold extrusion forming method of thin-walled inner cone splined hub |
| CN101780487B (en) * | 2010-02-11 | 2012-06-06 | 山西北方机械制造有限责任公司 | Cold extrusion forming method of thin-walled inner cone splined hub |
| CN102357552A (en) * | 2011-08-18 | 2012-02-22 | 南京通用电器有限公司 | Transmission shaft pressure square and method for manufacturing transmission shaft |
| CN102615126A (en) * | 2012-03-28 | 2012-08-01 | 重庆宗田科技发展有限公司 | Forming method for motorcycle starting shaft |
| CN102615126B (en) * | 2012-03-28 | 2014-12-10 | 重庆宗田科技发展有限公司 | Forming method for motorcycle starting shaft |
| CN104368744A (en) * | 2014-12-01 | 2015-02-25 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming technology of automobile door lock shaft and die structure for lock shaft forming |
| CN104368744B (en) * | 2014-12-01 | 2016-05-04 | 苏州工业园区新凯精密五金有限公司 | A kind of cold upsetting forming die structure of car door lock shaft |
| CN106623467A (en) * | 2017-02-23 | 2017-05-10 | 湖北名泰农机有限公司 | Cold extruder for machining sprayer shaft and machining process of sprayer shaft |
| CN106862460A (en) * | 2017-03-31 | 2017-06-20 | 西安建筑科技大学 | A kind of inaccessible finish forge device of step axis blank |
| CN106862460B (en) * | 2017-03-31 | 2018-10-30 | 西安建筑科技大学 | A kind of occlusion finish forge device of step axis blank |
| CN107695625A (en) * | 2017-09-30 | 2018-02-16 | 江苏太平洋精锻科技股份有限公司 | Internal spline lock ring cold precision forging technique with back taper |
| CN114178801A (en) * | 2021-12-10 | 2022-03-15 | 浙江欧迪恩传动科技股份有限公司 | Cold shrinkage diameter die and process for machining universal joint spline shaft by using same |
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