CN110314953A - A kind of oscillating bearing extrusion die of multisection type cone curved surface - Google Patents
A kind of oscillating bearing extrusion die of multisection type cone curved surface Download PDFInfo
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- CN110314953A CN110314953A CN201910642898.5A CN201910642898A CN110314953A CN 110314953 A CN110314953 A CN 110314953A CN 201910642898 A CN201910642898 A CN 201910642898A CN 110314953 A CN110314953 A CN 110314953A
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- extrusion die
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- oscillating bearing
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- 238000001125 extrusion Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 208000032765 Device extrusion Diseases 0.000 description 1
- 241000167880 Hirundinidae Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A kind of oscillating bearing extrusion die of multisection type cone curved surface, including upper extrusion die and lower extrusion die, oscillating bearing cycle blank is placed between upper extrusion die and lower extrusion die, oscillating bearing inner ring is placed on the inside of oscillating bearing cycle blank, the die cavity on the inside of upper extrusion die and lower extrusion die is successively arranged the first dimension conical surface die cavity, the second dimension conical surface die cavity and curved surface die cavity from inside to outside.The present invention bores curved surface mold cavity configuration using double dimensions, it can be conducive to the storage of medium in the intersection of one-dimensional conical surface die cavity and two-dimentional conical surface die cavity, enhance lubricant effect, facilitate bonding defect caused by eliminating because of excessive friction, extruding force required for reducing the contact stress in bearing outer ring deformation process and deforming, improves the surface quality of bearing compressive plane；Extrusion die end, extrusion die use curved surface mold cavity configuration, help to improve the closing in ability of oscillating bearing outer ring, improve the cornerite quality of bearing internal external circle, improve the bearing capacity of bearing.
Description
Technical field
The present invention relates to technical field of mold more particularly to oscillating bearing molds.
Background technique
Field is assembled in oscillating bearing extrusion molding, the prior art is as follows:
(1) by University On The Mountain Of Swallows it is old after rigid equal propositions " monoblock type self-lubricating knuckle bearing is without action of inner die forming side
Method ", the extrusion die profile for oscillating bearing is made of the equal conical surface with cylindrical hole, upper die mold type chamber cone angle and lower die mould
Tool type chamber cone angle is between 20 °~70 °.In extrusion process, upper extrusion die 1 reaches target position under the action of press machine,
Spring 6 below mandrel 5 can make bearing inner race 4 have certain amount of moving down in pressing process middle (center) bearing cycle blank 2, when
When 2 inner surface of cycle blank is at Internal Spherical Surface, stopping molding, mold opens, the oscillating bearing for meeting clearance requirement is obtained, finally,
By processing to its end face and outer surface vehicle mill, obtained from lubricating joint bearing completed products, pressurizing unit is as shown in Figure 1.
(2) " self-lubricating knuckle bearing extrusion molding dies and the technique " of the propositions such as You Xuchen treasure, the extrusion process use
Extrusion die in upper mold die cavity perpendicular to upper mold moving direction Series of Plane Section circle in, extrusion die mould intracavity wall be spherical surface
The section circular diameter of structure, upper mold endface is 0.05- bigger than the outer diameter before outer ring extrusion forming in self-lubricating knuckle bearing
0.1mm.Spherical surface sphere diameter corresponding to upper mold mould intracavity wall and lower die mould intracavity wall is than outer ring extrusion forming in self-lubricating knuckle bearing
The big 0.1-0.3mm of preceding outer diameter.Extrusion die includes wearing portion 14 and top 16, and wear 16 transition position of portion 14 and top
It is provided with the step-like shaft shoulder 15, the shaft shoulder 15 is recessed close to the part for wearing portion 14.Specific extrusion process are as follows: wanted first according to design
Processing outer ring, inner ring are asked, and selflubricating liner is pasted on the inner wall of outer ring, lower die is fixed on hydraulic press lower bottom base, and
Successively bearing inner race 4, outer ring set are through on plug 13；Then upper mold 1 will be squeezed steadily to be placed on outer ring and plug 13, controlled
Hydraulic press upper press head applies downward axial force, upper mold die cavity and lower die die cavity collective effect to upper mold, and outer ring starts to squeeze and become
Shape and envelope are on inner ring；Finally the self-lubricating knuckle bearing of extrusion forming is taken out from lower die, pressurizing unit such as Fig. 2 and figure
Shown in 3.
The shortcomings that prior art or deficiency: in existing oscillating bearing extrusion forming process, the pressurizing unit used is not
Identical to the greatest extent, by the analysis to pressurizing unit each section component, the structure type of extrusion die is to influence oscillating bearing to be squeezed into
An important factor for form quality amount.The die cavity type of current joint bearing extrusion die is broadly divided into two kinds of the conical surface, curved surface.By to cone
Face mould tool and curve mold are the study found that since oscillating bearing Internal and external cycle is the particularity of mating spherical surfaces, the die cavity of extrusion die
Structure using single structure type often result in bearing outer ring in extrusion process the formative radius of its inner surface, forming radian not
It can be effectively able to satisfy the requirement of bearing forming, influence the forming gap and contact surface quality of bearing.Secondly the material of oscillating bearing
Material is mostly high-yield strength, and the martensitic stain less steel of high rigidity uses single mold cavity configuration easily to produce in its process
Raw bonding defect.Simultaneously in extrusion process, mold compressive plane is unfavorable for using the single conical surface or curved surface mold cavity configuration
With the friction, lubrication between bearing outer ring surface, the flowing of bearing outer ring surface metal is affected, causes bearing outer ring surface easy
Irregular deformation occurs and abrasion, the damaged condition of mold also greatly increase, increases production cost.
Summary of the invention
In order to solve the above problem existing for existing oscillating bearing extrusion die, the present invention provides a kind of multisection type cone is bent
The oscillating bearing extrusion die in face.
Present invention technical solution used for the above purpose is: a kind of oscillating bearing extruding of multisection type cone curved surface
Mold, including upper extrusion die and lower extrusion die place oscillating bearing outer ring hair between upper extrusion die and lower extrusion die
Oscillating bearing inner ring is placed in base, oscillating bearing cycle blank inside, and the die cavity on the inside of upper extrusion die and lower extrusion die is by interior
It is successively arranged the first dimension conical surface die cavity, the second dimension conical surface die cavity and curved surface die cavity outward.
The second dimension conical surface die cavity and curved surface die cavity are tangent.
The modular angle α of the first dimension conical surface die cavity1Less than the second dimension conical-surface mould cavity mold angle α2, the mould of the first dimension conical surface die cavity
Angle α1It is 60 °~75 °, the second dimension conical-surface mould cavity mold angle α2It is 45 °~55 °.
The oscillating bearing extrusion die of multisection type cone curved surface of the invention, bores curved surface mold cavity configuration using double dimensions, can be one
The intersection of dimension conical surface die cavity and two-dimentional conical surface die cavity is conducive to the storage of medium, enhances lubricant effect, help to eliminate because
Bonding defect caused by excessive friction, extruding force required for reducing the contact stress in bearing outer ring deformation process and deforming,
Improve the surface quality of bearing compressive plane；Extrusion die end, extrusion die use curved surface mold cavity configuration, help to improve pass
The closing in ability of nodal axisn bearing outer-ring improves the cornerite quality of bearing internal external circle, improves the bearing capacity of bearing.
Detailed description of the invention
Fig. 1 is monoblock type self-lubricating knuckle bearing without action of inner moulding apparatus main view sectional structure chart.
Fig. 2 is the main view sectional structure chart of self-lubricating knuckle bearing extrusion forming device squeezed state.
Fig. 3 is the main view sectional structure chart of self-lubricating knuckle bearing extrusion forming device extrusion forming state.
Fig. 4 is the oscillating bearing extrusion die main view sectional structure chart of multisection type cone curved surface of the present invention.
Fig. 5 is the oscillating bearing extrusion die squeezed state main view sectional structure chart of multisection type cone curved surface of the present invention.
Fig. 6 is the oscillating bearing extrusion die extrusion forming state main view sectional structure chart of multisection type cone curved surface of the present invention.
Fig. 7 is Fig. 6 part A partial enlargement structure chart.
Fig. 8 is the mold cavity configuration figure of the oscillating bearing extrusion die of multisection type cone curved surface of the present invention.
Fig. 9 is the mold cavity configuration figure of the oscillating bearing extrusion die of multisection type cone curved surface of the present invention.
In figure: the upper extrusion die of 1-, 2- bearing outer ring blank, 3- lubricant layer, 4- bearing inner race, 5- mandrel, 6- spring, 7-
Lower mold, 9- upper mold die cavity cone angle, 10- lower die die cavity cone angle, 11- upper mold die cavity, 12- lower die die cavity, 13- mandrel, 14, wear
Portion, 15, the shaft shoulder, 16, top, the 17, first dimension conical surface die cavity, the 18, second dimension conical surface die cavity, 19, curved surface die cavity.
Specific embodiment
The oscillating bearing extrusion die of multisection type cone curved surface of the invention, structure as shown in figures 4-9, by the cone of extrusion die
Face mould chamber is designed as double dimension Cavity surfaces instead of traditional conical surface mold with single modular angle, and two modular angles of conical surface die cavity are not
It together, can the uneven problem of effective solution bearing outer ring as caused by single die cavity deformation.It as Figure 4-Figure 6, is joint shaft
Hold extrusion process schematic diagram, the present invention is only designed extrusion die, therefore only indicated in figure extrusion die 1, it is lower squeeze
Compression mould 7, oscillating bearing cycle blank 2,4 four part of oscillating bearing inner ring.Cycle blank 2 is in cavity body of mould in extrusion process
It is gradually bonded with bearing inner race 4 under effect, until the inner surface of bearing outer ring is bonded completely with the spherical surface of bearing inner race 4, mold stops
It only squeezes, then withdraws mold, oscillating bearing extruding terminates, and completes to squeeze assembly by machining.
As shown in Figure 7 and Figure 8, the die cavity of 7 inside of upper extrusion die 1 and lower extrusion die is successively arranged first from inside to outside
It ties up conical surface die cavity 17, second and ties up conical surface die cavity 18 and curved surface die cavity 19.The present invention proposes double dimension conical surface mold cavity configurations, can be first
The intersection of conical surface die cavity 17 and the second dimension conical surface die cavity is conducive to the storage of medium, enhances lubricant effect, helps to eliminate
Because of bonding defect caused by excessive friction, reduces and squeezed required for contact stress and deformation in bearing outer ring deformation process
Power improves the surface quality of bearing compressive plane.Extrusion die end helps to improve joint shaft using curved surface mold cavity configuration
The closing in ability of bearing outer-ring improves the cornerite quality of bearing internal external circle, improves the bearing capacity of bearing.By to mold cavity configuration
Optimization improve extrusion die to the ability to function of bearing outer ring extrusion molding, improve mold compressive plane and axis in extrusion process
Lubricating quality between bearing outer-ring achievees the purpose that improve oscillating bearing extrusion molding quality.
As shown in figure 9, the die cavity of the extrusion die is made of conical surface die cavity and curved surface cavity section, wherein conical surface die cavity is
Double dimension die cavitys.α in figure1For the modular angle of the first dimension conical surface die cavity, α2For the modular angle of the second dimension conical surface die cavity, r is the song of curved surface die cavity
Radius surface, ha、hb、hcThe work belt (calibrating strap) of respectively one-dimensional conical surface die cavity, two-dimentional conical surface die cavity, curved surface die cavity, R1、R2、
R3Respectively one-dimensional conical surface die cavity, two-dimentional conical surface die cavity, curved surface die cavity work type chamber radius.One-dimensional conical surface die cavity in mold
Modular angle is less than two-dimentional die cavity modular angle, that is, α2>α1, improve the storage effect of lubricating grease, improve product deformation quality and reduce contact surface (mould
Have compressive plane and bearing outer ring outer surface) residual stress, α under normal circumstances1Between 60 °~75 °, α245 °~55 ° it
Between, depending on the work belt respectively tieed up needs according to specific circumstances, the second dimension conical surface mold and curve mold are tangent relation, guarantee axis
Bearing outer-ring smooth transition improves product quality.
The present invention is described by embodiment, and those skilled in the art know, is not departing from spirit of the invention
In the case where range, various changes or equivalence replacement can be carried out to these features and embodiment.In addition, in religion of the invention
It leads down, can modify to these features and embodiment to adapt to particular situation and material without departing from essence of the invention
Mind and range.Therefore, the present invention is not limited to the particular embodiment disclosed, fallen with claims hereof
Embodiment in range belongs to protection scope of the present invention.
Claims (3)
1. a kind of oscillating bearing extrusion die of multisection type cone curved surface, it is characterised in that: including upper extrusion die (1) and lower extruding
Mold (7) places oscillating bearing cycle blank (2) between upper extrusion die (1) and lower extrusion die (7), oscillating bearing outer ring
Oscillating bearing inner ring (4) are placed on the inside of blank (2), the die cavity on the inside of upper extrusion die (1) and lower extrusion die (7) is from inside to outside
It is successively arranged the first dimension conical surface die cavity (17), the second dimension conical surface die cavity (18) and curved surface die cavity (19).
2. a kind of oscillating bearing extrusion die of multisection type cone curved surface according to claim 1, it is characterised in that: described the
Two-dimentional conical surface die cavity (18) and curved surface die cavity (19) are tangent.
3. a kind of oscillating bearing extrusion die of multisection type cone curved surface according to claim 1, it is characterised in that: described the
Modular angle (the α of one-dimensional conical surface die cavity (17)1) less than second dimension conical surface die cavity (18) modular angle (α2), the first dimension conical surface die cavity (17)
Modular angle (α1) it is 60 °~75 °, second dimension conical surface die cavity (18) modular angle (α2) it is 45 °~55 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642898.5A CN110314953A (en) | 2019-07-17 | 2019-07-17 | A kind of oscillating bearing extrusion die of multisection type cone curved surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910642898.5A CN110314953A (en) | 2019-07-17 | 2019-07-17 | A kind of oscillating bearing extrusion die of multisection type cone curved surface |
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| CN110314953A true CN110314953A (en) | 2019-10-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978548A (en) * | 2019-12-26 | 2020-04-10 | 扬州润发橡塑有限公司 | Extrusion assembly method of rubber joint |
| CN111229851A (en) * | 2020-02-20 | 2020-06-05 | 上海市轴承技术研究所 | Extrusion die positioning device and extrusion die |
| CN112303133A (en) * | 2020-10-20 | 2021-02-02 | 八环科技集团股份有限公司 | Assembling process of self-lubricating joint bearing |
| CN112355564A (en) * | 2020-11-12 | 2021-02-12 | 燕山大学 | Extrusion reducing type device and method for repairing hole diameter of rod end joint bearing rod head seat |
| CN113446178A (en) * | 2021-06-21 | 2021-09-28 | 北京华德液压工业集团有限责任公司 | Axial plunger pump plunger and axial plunger pump |
| CN114406615A (en) * | 2022-01-24 | 2022-04-29 | 中国科学院兰州化学物理研究所 | Manufacturing method for filling cavity with lubricating material of integral self-lubricating joint bearing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978548A (en) * | 2019-12-26 | 2020-04-10 | 扬州润发橡塑有限公司 | Extrusion assembly method of rubber joint |
| CN111229851A (en) * | 2020-02-20 | 2020-06-05 | 上海市轴承技术研究所 | Extrusion die positioning device and extrusion die |
| CN112303133A (en) * | 2020-10-20 | 2021-02-02 | 八环科技集团股份有限公司 | Assembling process of self-lubricating joint bearing |
| CN112355564A (en) * | 2020-11-12 | 2021-02-12 | 燕山大学 | Extrusion reducing type device and method for repairing hole diameter of rod end joint bearing rod head seat |
| CN113446178A (en) * | 2021-06-21 | 2021-09-28 | 北京华德液压工业集团有限责任公司 | Axial plunger pump plunger and axial plunger pump |
| CN114406615A (en) * | 2022-01-24 | 2022-04-29 | 中国科学院兰州化学物理研究所 | Manufacturing method for filling cavity with lubricating material of integral self-lubricating joint bearing |
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