CN103419003A - Constant speed drive shaft ball case processing technology - Google Patents
Constant speed drive shaft ball case processing technology Download PDFInfo
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- CN103419003A CN103419003A CN2013103580042A CN201310358004A CN103419003A CN 103419003 A CN103419003 A CN 103419003A CN 2013103580042 A CN2013103580042 A CN 2013103580042A CN 201310358004 A CN201310358004 A CN 201310358004A CN 103419003 A CN103419003 A CN 103419003A
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Abstract
The invention discloses a constant speed drive shaft ball case processing technology, which comprises processing of an outer star wheel, processing of a retainer, and processing of an inner star wheel; and the outer star wheel, the retainer and the inner star wheel which are completely processed are assembled into a whole, so as to form a drive shaft ball case. With the adoption of the constant speed drive shaft ball case processing technology, cold extrusion forming is adopted, the precision of a ball groove of the inner star wheel after processing is high, and the surface of the ball groove of the inner star wheel after processing has no excessive temperature, so that the ball groove of the inner star wheel cannot contact with oxygen in air to be oxidized, thereby the compressive strength of the retainer is increased, the transverse rupture strength of the retainer can be effectively prevented, the quality of the product is improved, the production cost is reduced, and the after-sale customer complaints are reduced.
Description
Technical field
The present invention relates to a kind of constant velocity driveshaft ball cage processing technology.
Background technology
Constant velocity driving shaft is that the axle that two axis are not overlapped couples together, and makes the mechanism of diaxon with identical angular speed transmission campaign.Be the vitals in the car drivetrain system, its effect is the power of engine to be delivered to the driving wheel of automobile from speed changer, meets the requirement of car transmission shaft outer end corner; The power of engine is passed to wheel steadily, reliably; Beating of the compensation inner suspension of car.The driving car is run at high speed.
Constant velocity driving shaft type for car is a lot, wherein applying maximum is the ball cage type constant velocity driving shaft, general ball cage type constant velocity driveshaft ball cage structure is disclosed structure in " 201120434577.5 " and " 201120522953.6 " as the patent No. of the applicant's earlier application, mainly comprise out star wheel, steel ball, retainer and star-wheel, in original process, constant velocity driving shaft star-wheel (out star wheel lumen body divides) blank of inner spider was horizontal forging in the past, concrete technology is horizontal forging-modified-thick, finish-milling-carburizing-fine grinding-grinding, but dimensional accuracy and roughness still have deviation, make the BJ star-wheel assemble rear use, use frictional resistance is large and service life is lower, common technique obtains the star-wheel crude green body in the mode of forge hot, and during hot-forging forming under the condition of high temperature, so easily oxidation by air of base material surface, cause the star-wheel surface to there are the oxidation and decarbonization bits, the related quality affected after the star-wheel finished product, and make its rough surface, in order to address this problem, thereby need to make extend process time to the star-wheel regrind.And it is not high to find that original retainer adds the retainer intensity that technique processing obtains, the problem of deformation easily in use appears.Therefore be necessary above-mentioned shortcoming is improved.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of constant velocity driveshaft ball cage processing technology, each assembly coordinates more accurate, and has higher retainer intensity.
The present invention is achieved through the following technical solutions: a kind of processing technology of constant velocity driveshaft ball cage, comprise the processing of out star wheel, the processing of retainer, the processing of star-wheel, out star wheel after machining, retainer, star-wheel are assembled into to integrally formed driving shaft ball cage, and it is characterized in that: the processing technology of described out star wheel comprises the steps: 1) rod iron is die-cut to obtain the material of preliminary dimension; 2) the described material of punching press obtains metal stock; 3) after passing into cooling fluid, puts into again the Cold Extruding Die inner chamber described metal stock; 4) start forging press, a hydraulic cylinder of forging press is descending, makes cold extrusion drift enter the inner chamber of blank; Now make cooling fluid cover the blank surface, No. two hydraulic cylinders of forging press are descending, make the cold extrusion drift spreading, and No. three hydraulic cylinders of forging press are descending, by cold extrusion drift, together with blank, be pressed in Cold Extruding Die, make the blank moulding, after the blank moulding, two, one, No. three hydraulic cylinder backhauls successively of forging press, blank in Cold Extruding Die the taking-up moulding, complete cold extrusion shaped operation, during the cold extrusion operation, the heat that blank deformation produces is absorbed by cooling fluid; 5) blank after step 4 processing is carried out to the mid frequency induction hardening processing; 6) the blank alley after the intermediate frequency Quenching Treatment is refined, make the alley shape meet design size; The processing technology of described retainer comprises the steps: 1) raw steel is blocked; 2) grinding is carried out in the raw steel surface after blocking, make raw steel there is the shape of preliminary retainer; 3) raw steel after grinding is processed to the first through hole be oppositely arranged, process four the second through holes that arrange symmetrically and evenly between described the first through hole, described the first through hole is greater than described the second through hole; 4) first through hole and second through hole of grinding after completing; In technique scheme, described forging press is cold extrusion press.
In technique scheme, described the first through hole comprises upper and lower two straight flanges, and described straight flange is by arc transition, and described the second through hole is four rectangles that corner's circular arc is excessive.
The present invention has following beneficial effect: adopt cold extrusion shaped, after processing, the inner spider alley precision is high, after processing, the inner spider alley surface does not have too high temperature, not can with airborne oxygen catalytic oxidation, increase retainer compression strength, effectively prevented the retainer transverse breakage, improved product quality, save production cost, reduce customer complaint after sale.
The accompanying drawing explanation
The STRUCTURE DECOMPOSITION schematic diagram that Fig. 1 is driving shaft ball cage of the present invention.
Fig. 2 is the variation schematic diagram after raw material steel drift the first through hole of the present invention and the second through hole.
Fig. 3 is retainer schematic diagram (part-structure).
The specific embodiment
Below the present invention is described in further detail to (forging press described in embodiment is cold extrusion press): referring to Fig. 1 to Fig. 2, a kind of processing technology of constant velocity driveshaft ball cage, comprise the processing of out star wheel 1, the processing of retainer 3, the processing of star-wheel 4, out star wheel 1 after machining, retainer 3, star-wheel 4 are assembled into to integrally formed driving shaft ball cage, and it is characterized in that: the processing technology of described out star wheel comprises the steps: 1) rod iron is die-cut to obtain the material of preliminary dimension; 2) the described material of punching press obtains metal stock; 3) after passing into cooling fluid, puts into again the Cold Extruding Die inner chamber described metal stock; 4) start forging press, a hydraulic cylinder of forging press is descending, makes cold extrusion drift enter the inner chamber of blank; Now make cooling fluid cover the blank surface, No. two hydraulic cylinders of forging press are descending, make the cold extrusion drift spreading, and No. three hydraulic cylinders of forging press are descending, by cold extrusion drift, together with blank, be pressed in Cold Extruding Die, make the blank moulding, after the blank moulding, two, one, No. three hydraulic cylinder backhauls successively of forging press, blank in Cold Extruding Die the taking-up moulding, complete cold extrusion shaped operation, during the cold extrusion operation, the heat that blank deformation produces is absorbed by cooling fluid; 5) blank after step 4 processing is carried out to the mid frequency induction hardening processing; 6) the blank alley after the intermediate frequency Quenching Treatment is refined, make the alley shape meet design size; The processing technology of described retainer comprises the steps: 1) raw steel is blocked; 2) grinding is carried out in the raw steel surface after blocking, make raw steel there is the shape of preliminary retainer; 3) raw steel after grinding is processed to the first through hole be oppositely arranged, process four the second through holes that arrange symmetrically and evenly between described the first through hole, described the first through hole is greater than described the second through hole; 4) first through hole and second through hole of grinding after completing; Described forging press is cold extrusion press.
Described the first through hole comprises upper and lower two straight flanges, and described straight flange is by arc transition, and described the second through hole is four rectangles that corner's circular arc is excessive.
Referring to Fig. 3, form single circular arc muscle 5 between described the first through hole 30a and the second through hole 30b, form two circular arc muscle 6 between described two second adjacent through hole 30b, single circular arc muscle 5 and two circular arc muscle 6 have better stronger compression strength; Effectively reduce the retainer incidence of cracking, save production cost.
Claims (3)
1. a constant velocity driveshaft ball cage processing technology, comprise the processing of out star wheel, the processing of retainer, the processing of star-wheel, out star wheel after machining, retainer, star-wheel and steel ball are assembled into to driving shaft ball cage, it is characterized in that: the processing technology of described out star wheel comprises the steps: 1) rod iron is die-cut to obtain the material of preliminary dimension; 2) the described material of punching press obtains metal stock; 3) after passing into cooling fluid, puts into again the Cold Extruding Die inner chamber described metal stock; 4) start forging press, a hydraulic cylinder of forging press is descending, makes cold extrusion drift enter the inner chamber of blank; Now make cooling fluid cover the blank surface, No. two hydraulic cylinders of forging press are descending, make the cold extrusion drift spreading, and No. three hydraulic cylinders of forging press are descending, by cold extrusion drift, together with blank, be pressed in Cold Extruding Die, make the blank moulding, after the blank moulding, two, one, No. three hydraulic cylinder backhauls successively of forging press, blank in Cold Extruding Die the taking-up moulding, complete cold extrusion shaped operation, during the cold extrusion operation, the heat that blank deformation produces is absorbed by cooling fluid; 5) blank after step 4 processing is carried out to the mid frequency induction hardening processing; 6) the blank alley after the intermediate frequency Quenching Treatment is refined, make the alley shape meet design size; The processing technology of described retainer comprises the steps: 1) raw steel is blocked; 2) grinding is carried out in the raw steel surface after blocking, make raw steel there is the shape of preliminary retainer; 3) raw steel after grinding is processed to the first through hole be oppositely arranged, process four the second through holes that arrange symmetrically and evenly between described the first through hole, described the first through hole is greater than described the second through hole; 4) first through hole and second through hole of grinding after completing.
2. a kind of constant velocity driveshaft ball cage processing technology as claimed in claim 1, it is characterized in that: described forging press is cold extrusion press.
3. a kind of constant velocity driveshaft ball cage processing technology as claimed in claim 1, it is characterized in that: described the first through hole comprises upper and lower two straight flanges, and described straight flange is by arc transition, and described the second through hole is four rectangles that corner's circular arc is excessive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310358004.2A CN103419003B (en) | 2013-09-18 | 2013-09-18 | A kind of constant velocity driveshaft ball cage processing technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310358004.2A CN103419003B (en) | 2013-09-18 | 2013-09-18 | A kind of constant velocity driveshaft ball cage processing technology |
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| CN103419003A true CN103419003A (en) | 2013-12-04 |
| CN103419003B CN103419003B (en) | 2016-04-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975147A (en) * | 2015-07-06 | 2015-10-14 | 安徽索特汽车零部件有限公司 | Heat treatment technology of automobile outer joint bell-shaped shell |
| CN106694789A (en) * | 2017-02-21 | 2017-05-24 | 上海交大中京锻压有限公司 | Die forging process and equipment of besides-star wheel and star wheel blanks for automobile drive shaft |
| CN107061529A (en) * | 2017-05-24 | 2017-08-18 | 宁波纬尚汽车零部件有限公司 | A kind of cage spherical shell structure and its technique processing method |
| CN109676068A (en) * | 2019-01-29 | 2019-04-26 | 上海电机学院 | Parting structure product edging equipment and its forming method on the inside of a kind of VL type cage |
Citations (5)
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| US4292831A (en) * | 1979-10-24 | 1981-10-06 | Simon Joseph A | Process for extruding a metal tube with inwardly thickened end portions |
| CN101264489A (en) * | 2008-04-25 | 2008-09-17 | 重庆大学 | Automobile out star wheel isothermal extrusion preliminary shaping device |
| CN101327562A (en) * | 2008-07-23 | 2008-12-24 | 宁波市鄞州欧菱电梯配件有限公司 | Method for processing metallic rope pulley |
| CN101823084A (en) * | 2010-04-28 | 2010-09-08 | 南京航空航天大学 | Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter |
| CN102825084A (en) * | 2011-12-09 | 2012-12-19 | 洛阳轴研科技股份有限公司 | Cold extrusion device, and female die and male die thereof |
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2013
- 2013-09-18 CN CN201310358004.2A patent/CN103419003B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292831A (en) * | 1979-10-24 | 1981-10-06 | Simon Joseph A | Process for extruding a metal tube with inwardly thickened end portions |
| CN101264489A (en) * | 2008-04-25 | 2008-09-17 | 重庆大学 | Automobile out star wheel isothermal extrusion preliminary shaping device |
| CN101327562A (en) * | 2008-07-23 | 2008-12-24 | 宁波市鄞州欧菱电梯配件有限公司 | Method for processing metallic rope pulley |
| CN101823084A (en) * | 2010-04-28 | 2010-09-08 | 南京航空航天大学 | Auxiliary cold extrusion machining device with large diameter and inner thread based on electromagnetic vibration exciter |
| CN102825084A (en) * | 2011-12-09 | 2012-12-19 | 洛阳轴研科技股份有限公司 | Cold extrusion device, and female die and male die thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975147A (en) * | 2015-07-06 | 2015-10-14 | 安徽索特汽车零部件有限公司 | Heat treatment technology of automobile outer joint bell-shaped shell |
| CN106694789A (en) * | 2017-02-21 | 2017-05-24 | 上海交大中京锻压有限公司 | Die forging process and equipment of besides-star wheel and star wheel blanks for automobile drive shaft |
| CN107061529A (en) * | 2017-05-24 | 2017-08-18 | 宁波纬尚汽车零部件有限公司 | A kind of cage spherical shell structure and its technique processing method |
| CN107061529B (en) * | 2017-05-24 | 2023-08-08 | 宁波纬尚汽车零部件有限公司 | Ball cage ball shell structure and technological treatment method thereof |
| CN109676068A (en) * | 2019-01-29 | 2019-04-26 | 上海电机学院 | Parting structure product edging equipment and its forming method on the inside of a kind of VL type cage |
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| Publication number | Publication date |
|---|---|
| CN103419003B (en) | 2016-04-20 |
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