CN102335702A - Formation method for improving finishing accuracy of universal joint sliding sleeve and mould thereof - Google Patents
Formation method for improving finishing accuracy of universal joint sliding sleeve and mould thereof Download PDFInfo
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- CN102335702A CN102335702A CN2011102387227A CN201110238722A CN102335702A CN 102335702 A CN102335702 A CN 102335702A CN 2011102387227 A CN2011102387227 A CN 2011102387227A CN 201110238722 A CN201110238722 A CN 201110238722A CN 102335702 A CN102335702 A CN 102335702A
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- 238000000034 method Methods 0.000 title abstract description 20
- 230000015572 biosynthetic process Effects 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims description 8
- 238000005242 forging Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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Abstract
The invention discloses a formation method for improving the finishing accuracy of a universal joint sliding sleeve, which includes the design of a diameter-reducing concave mould, and is characterized in that a rear gap is additionally arranged behind the working tape of the diameter-reducing concave mould when the mould is designed. The invention also discloses the mould for the formation method for improving the finishing accuracy of the universal joint sliding sleeve, which is characterized in that the rear gap is additionally arranged behind the working tape of the diameter-reducing concave mould. According to the invention, under the premise that the end surface of a lathe is not additionally arranged, the finishing accuracy problem of the universal joint sliding sleeve is solved, the cost is reduced, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of metal forming method and mould therefor, particularly relate to a kind of manufacturing process and mould therefor that improves universal joint sliding sleeve finishing precision.
Background technology
Universal joint sliding sleeve class part shape is comparatively complicated, and head cavity and profile all are abnormity, see accompanying drawing 1 and accompanying drawing 2, and required precision is higher, no longer machined behind the finish forge, and assembling is used after the direct quenching.Forging method commonly used is the anti-undergauge finishing after the shape that is extruded into.Anti-extruding process is owing to exist the axiality influence, and the circumferential wall thickness dimension in head cross section is inconsistent simultaneously, unavoidably can occur the uneven phenomenon of large end face after anti-the squeezing.Will occur because of the uneven lateral stress that causes of large end face when touching large end face when finishing mold extruding causes, because finishing need be adopted the less modular angle of going into, the influence of the lateral stress middle part of housing from the head begins to influence the precision of forging.Forging axiality after the finishing increases, and slight distortion is axially taking place alley, and element precision scatters and disappears.
Summary of the invention
The technical problem that the present invention will solve is: to the problem that exists in the above-mentioned prior art; Providing a kind of need not increase the cutting facing and just can produce the forging process technology that satisfies properties of product requirements; Set about from forging process,, overcome and forge the influence of lateral stress the product precision from the reason that stress point of view causes element precision to scatter and disappear; With the precision of forging method raising forging, to overcome the deficiency of prior art.
For solving the problems of the technologies described above, the invention provides following technical scheme and be: a kind of manufacturing process that improves universal joint sliding sleeve finishing precision, comprise the design of undergauge die, wherein: the mould design is with increasing the crack, back behind the undergauge die work zone.
As a kind of preferred version of the manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention, between wherein said crack, back and the said work zone with 5 °～20 ° transition.
As a kind of preferred version of the manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention, crack, wherein said back size is of a size of the basis with said work zone and evenly amplifies 0.05～0.2.
A kind of finishing procedure mould used according to the said manufacturing process of claim 1 is characterized in that: behind undergauge die work zone, increase the crack, back.
As a kind of preferred version of the used finishing procedure mould of the manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention, between crack, wherein said back and the said work zone with 5 °～20 ° transition.
As a kind of preferred version of the used finishing procedure mould of the manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention, wherein said size is of a size of the basis with said work zone and evenly amplifies 0.05～0.2.
The invention has the beneficial effects as follows: behind finishing die work zone, increase the crack, back; Guarantee after forging is through the work zone, still to be in stress; Utilize drift and forging acting in conjunction, constraint finishing die does not squint when receiving side force, and radially relative position is constant all the time to make drift and finishing die; To improve the position relation of big end place's inner chamber and profile, reach the effect that improves forging inner chamber and profile positional precision.Part through the method is shaped can keep the original positional precision of blank basically.The present invention has solved the finishing precision problem of universal joint sliding sleeve under the prerequisite that does not increase face work, reduced cost, has improved production efficiency.
Description of drawings
Fig. 1 is the generalized section of common universal joint sliding sleeve class part.
Fig. 2 is the vertical view of common universal joint sliding sleeve class part.
Fig. 3 is a finishing procedure mould sketch among the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Like figure, wherein: 1. blank; 2. drift; 3. finishing die; 4, crack, back; 5, work zone; 6, go into the mould awl.Back crack, present domestic academia to clear and definite technical term definition is arranged, does not refer to sequence number 4 positions in the accompanying drawing here among this paper.
The manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention; Comprise the design of undergauge die; The mould design is with crack after increasing behind the undergauge die work zone, and utilization crack, back and the skew of drift acting in conjunction constraint undergauge die reach the effect of raising forging inner chamber and outer shaped position.With 5 ° of transition, crack, wherein said back size is of a size of the basis with said work zone and evenly amplifies 0.05 between wherein said crack, back and the said work zone.Fixedly drift 2, and blank 1 packs into drift by diagramatic way, and finishing die 3 moves from top to bottom; The finishing die is designed with into the mould awl, and along with the finishing die moves downward, the blank housing parts gets into die cavity; Modular angle gone into by the finishing die and the drift acting in conjunction reduces the blank wall thickness, crack after blank arrives through the die work zone, and back crack begins the blank effect; Go into mould awl when side force occurring when blank housing end face touches die, fixing drift and blank relative position remain unchanged, blank to die after the crack reaction; Stop the die radial deflection, reach the effect that improves forging inner chamber and profile positional precision.
Through the part of the method and this die forming, can keep the original positional precision of blank basically.
The manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention; Comprise the design of undergauge die; The mould design is with crack after increasing behind the undergauge die work zone, and utilization crack, back and the skew of drift acting in conjunction constraint undergauge die reach the effect of raising forging inner chamber and outer shaped position.With 20 ° of transition, crack, wherein said back size is of a size of the basis with said work zone and evenly amplifies 0.05 between wherein said crack, back and the said work zone.Fixedly drift 2, and blank 1 packs into drift by diagramatic way, and finishing die 3 moves from top to bottom; The finishing die is designed with into the mould awl, and along with the finishing die moves downward, the blank housing parts gets into die cavity; Modular angle gone into by the finishing die and the drift acting in conjunction reduces the blank wall thickness, crack after blank arrives through the die work zone, and back crack begins the blank effect; Go into mould awl when side force occurring when blank housing end face touches die, fixing drift and blank relative position remain unchanged, blank to die after the crack reaction; Stop the die radial deflection, reach the effect that improves forging inner chamber and profile positional precision.
Through the part of the method and this die forming, can keep the original positional precision of blank basically.
The manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention; Comprise the design of undergauge die; The mould design is with crack after increasing behind the undergauge die work zone, and utilization crack, back and the skew of drift acting in conjunction constraint undergauge die reach the effect of raising forging inner chamber and outer shaped position.With 20 ° of transition, crack, wherein said back size is of a size of the basis with said work zone and evenly amplifies 0.2 between wherein said crack, back and the said work zone.Fixedly drift 2, and blank 1 packs into drift by diagramatic way, and finishing die 3 moves from top to bottom; The finishing die is designed with into the mould awl, and along with the finishing die moves downward, the blank housing parts gets into die cavity; Modular angle gone into by the finishing die and the drift acting in conjunction reduces the blank wall thickness, crack after blank arrives through the die work zone, and back crack begins the blank effect; Go into mould awl when side force occurring when blank housing end face touches die, fixing drift and blank relative position remain unchanged, blank to die after the crack reaction; Stop the die radial deflection, reach the effect that improves forging inner chamber and profile positional precision.
Through the part of the method and this die forming, can keep the original positional precision of blank basically.
The manufacturing process of raising universal joint sliding sleeve finishing precision according to the invention; Comprise the design of undergauge die; The mould design is with crack after increasing behind the undergauge die work zone, and utilization crack, back and the skew of drift acting in conjunction constraint undergauge die reach the effect of raising forging inner chamber and outer shaped position.With 5 ° of transition, crack, wherein said back size is of a size of the basis with said work zone and evenly amplifies 0.2 between wherein said crack, back and the said work zone.Fixedly drift 2, and blank 1 packs into drift by diagramatic way, and finishing die 3 moves from top to bottom; The finishing die is designed with into the mould awl, and along with the finishing die moves downward, the blank housing parts gets into die cavity; Modular angle gone into by the finishing die and the drift acting in conjunction reduces the blank wall thickness, crack after blank arrives through the die work zone, and back crack begins the blank effect; Go into mould awl when side force occurring when blank housing end face touches die, fixing drift and blank relative position remain unchanged, blank to die after the crack reaction; Stop the die radial deflection, reach the effect that improves forging inner chamber and profile positional precision.
Through the part of the method and this die forming, can keep the original positional precision of blank basically.
More than describe explanation technical scheme of the present invention and unrestricted, the description of the embodiment of the invention just is used to the purpose explained, and is not the scope of restriction claim.Profile and inner chamber are all the processing technique field of the part of abnormity, use the method for this invention or the scope that mould all should be included in this patent protection.To those skilled in the art, can also make amendment or replace the present invention, and not break away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. a manufacturing process that improves universal joint sliding sleeve finishing precision comprises the design of undergauge die, it is characterized in that: behind the work zone of undergauge die, increase the crack, back during the mould design.
2. a kind of manufacturing process that improves universal joint sliding sleeve finishing precision according to claim 1 is characterized in that: between crack, said back and the said work zone with 5 °～20 ° transition.
3. a kind of manufacturing process that improves universal joint sliding sleeve finishing precision according to claim 1 is characterized in that: crack, said back size is of a size of the basis with said work zone and evenly amplifies 0.05～0.2.
4. the used mould of manufacturing process of the said raising universal joint of claim 1 a sliding sleeve finishing precision is characterized in that: be provided with the crack, back behind the work zone of undergauge die.
5. the used mould of manufacturing process of raising universal joint sliding sleeve finishing precision according to claim 4 is characterized in that: between crack, said back and the said work zone with 5 °～20 ° transition.
6. the used mould of manufacturing process of raising universal joint sliding sleeve finishing precision according to claim 4 is characterized in that: said size is of a size of the basis with said work zone and evenly amplifies 0.05～0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110238722.7A CN102335702B (en) | 2011-08-19 | 2011-08-19 | Formation method for improving finishing accuracy of universal joint sliding sleeve and mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110238722.7A CN102335702B (en) | 2011-08-19 | 2011-08-19 | Formation method for improving finishing accuracy of universal joint sliding sleeve and mould thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102335702A true CN102335702A (en) | 2012-02-01 |
| CN102335702B CN102335702B (en) | 2014-04-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909309A (en) * | 2012-10-17 | 2013-02-06 | 盐城理研精密锻造有限公司 | Universal joint forging method and shaping mould |
| CN104043765A (en) * | 2014-05-13 | 2014-09-17 | 盐城理研精密锻造有限公司 | Universal joint warm forging precision-forming technology |
| CN106466703A (en) * | 2016-08-30 | 2017-03-01 | 白爱华 | A kind of forging molding process of power transmission shaft alley |
| CN107186144A (en) * | 2017-06-14 | 2017-09-22 | 江苏森威精锻有限公司 | A kind of suitable section fork anti-plunger chip die squeezed of cold forging |
| CN107186145A (en) * | 2017-06-14 | 2017-09-22 | 江苏森威精锻有限公司 | The mould structure of mould under a kind of long handle sliding sleeve tube reducing |
| CN116511391A (en) * | 2023-03-13 | 2023-08-01 | 中北大学 | Extrusion method for conical cabin with end frames at both ends |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03204132A (en) * | 1989-12-29 | 1991-09-05 | Toyota Motor Corp | Manufacturing method of Rebro joint outer lace |
| US20010011469A1 (en) * | 2000-02-07 | 2001-08-09 | Yuichi Nagao | Forming machine |
| US7000319B2 (en) * | 2001-01-16 | 2006-02-21 | Ntn Corporation | Method of manufacturing outer races for tripod-type constant velocity universal joints |
| JP2010017729A (en) * | 2008-07-08 | 2010-01-28 | Ntn Corp | Die device for forging outside joint member and method of manufacturing outside joint member |
| JP2010094699A (en) * | 2008-10-15 | 2010-04-30 | Ntn Corp | Apparatus and method for working cup-shaped formed body |
-
2011
- 2011-08-19 CN CN201110238722.7A patent/CN102335702B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03204132A (en) * | 1989-12-29 | 1991-09-05 | Toyota Motor Corp | Manufacturing method of Rebro joint outer lace |
| US20010011469A1 (en) * | 2000-02-07 | 2001-08-09 | Yuichi Nagao | Forming machine |
| US7000319B2 (en) * | 2001-01-16 | 2006-02-21 | Ntn Corporation | Method of manufacturing outer races for tripod-type constant velocity universal joints |
| JP2010017729A (en) * | 2008-07-08 | 2010-01-28 | Ntn Corp | Die device for forging outside joint member and method of manufacturing outside joint member |
| JP2010094699A (en) * | 2008-10-15 | 2010-04-30 | Ntn Corp | Apparatus and method for working cup-shaped formed body |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909309A (en) * | 2012-10-17 | 2013-02-06 | 盐城理研精密锻造有限公司 | Universal joint forging method and shaping mould |
| CN104043765A (en) * | 2014-05-13 | 2014-09-17 | 盐城理研精密锻造有限公司 | Universal joint warm forging precision-forming technology |
| CN104043765B (en) * | 2014-05-13 | 2016-05-04 | 盐城理研精密锻造有限公司 | Universal joint warm forging essence forming technology |
| CN106466703A (en) * | 2016-08-30 | 2017-03-01 | 白爱华 | A kind of forging molding process of power transmission shaft alley |
| CN107186144A (en) * | 2017-06-14 | 2017-09-22 | 江苏森威精锻有限公司 | A kind of suitable section fork anti-plunger chip die squeezed of cold forging |
| CN107186145A (en) * | 2017-06-14 | 2017-09-22 | 江苏森威精锻有限公司 | The mould structure of mould under a kind of long handle sliding sleeve tube reducing |
| CN116511391A (en) * | 2023-03-13 | 2023-08-01 | 中北大学 | Extrusion method for conical cabin with end frames at both ends |
| CN116511391B (en) * | 2023-03-13 | 2023-11-10 | 中北大学 | Extrusion forming method of conical cabin with end frames at two ends |
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| Publication number | Publication date |
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| CN102335702B (en) | 2014-04-02 |
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Address after: 224100 No. 299, Nanxiang West Road, Dafeng Economic and Technological Development Zone, Yancheng City, Jiangsu Province Patentee after: Qianchao Senwei Co.,Ltd. Country or region after: China Address before: No. 299 Nanxiang Road, Economic Development Zone, Dafeng City, Yancheng City, Jiangsu Province, 224100 Patentee before: JIANGSU SUNWAY PRECISION FORGING Co.,Ltd. Country or region before: China |
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