CN104874979B - The ball spinning forming device of integral outer ring's formula self-lubricating knuckle bearing and manufacturing process - Google Patents
The ball spinning forming device of integral outer ring's formula self-lubricating knuckle bearing and manufacturing process Download PDFInfo
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- CN104874979B CN104874979B CN201510203029.4A CN201510203029A CN104874979B CN 104874979 B CN104874979 B CN 104874979B CN 201510203029 A CN201510203029 A CN 201510203029A CN 104874979 B CN104874979 B CN 104874979B
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- bearing
- outer ring
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- ball
- expansion sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a kind of ball spinning forming device of integral outer ring formula self-lubricating knuckle bearing and manufacturing process.Inner cone face ring is installed in the upper bolster of described device, retainer is fixed on inner cone face ring and constrains on its corresponding roller-way by described large, medium and small three groups of balls, and built with mandrel, base plate is coupled with lower mould the center counterbore of base plate by bolt.The inner surface of oscillating bearing outer ring blank is processed into the shape through process optimization by described manufacturing process, self-lubricating layer is affixed on thereon, fitted in the shape on bearing inner race using the inner surface that described forming device makes outer ring blank configured ends, then, by turning, grinding are carried out to the end face of bearing outer ring and outer surface, obtain integral outer ring's formula self-lubricating knuckle bearing finished product.The present invention, in forming process, is flexible contact between bearing outer ring and inner ring, self-lubricating layer will not be caused damage, and ball spinning deformation simultaneously is uniform, plastic force is little, easily controllable.
Description
Technical field
The invention belongs to a kind of oscillating bearing processing and manufacturing field, particularly to a kind of integral outer ring formula self-lubricating joint shaft
The ball spinning forming device holding and manufacturing process.
Background technology
Self-lubricating knuckle bearing is by an inner ring with spherical outside surface, an outer ring with Internal Spherical Surface and self-lubricating layer group
Become.It is divided into by the version of outer ring：Non-integral type and monoblock type.It is the pass of oscillating bearing in the self-lubricating layer of outer ring Internal Spherical Surface
Key part, not damaged and formation in manufacture process meets the gap condition of finished product oscillating bearing requirement, and its performance is played certainly
Qualitative effect.Outer ring and self-lubricating layer surface are the non-integral outer ring type self-lubricating knuckle bearings of one, easily cause in assembling
Inner surface self-lubricating layer and inner ring appearance surface damage；And outer ring and self-lubricating layer surface be subdivision non-integral outer ring type from
Lubricating joint bearing, in use its non-integral structure make gap, discontinuity, be also easy to produce stress concentration phenomenon, make
Bearing life is reduced with reliability.In addition, the complex structure of non-integral outer ring type self-lubricating knuckle bearing, matching requirements height.
The outer ring of integral outer ring's formula self-lubricating knuckle bearing is structure as a whole with self-lubricating layer, and outer ring is simple with inner ring structure
Single, gap condition meets finished product oscillating bearing requirement, and in use, reliability is high.But existing manufacturing technology is first using forging by outer ring
Pressure method envelope is formed on inner ring, then rolls out clearance by way of rolling.For forming outer ring Internal Spherical Surface and meeting finished product
The bearing clearance that oscillating bearing requires, self-lubricating layer stands violent extruding heterogeneous twice and deformation, easily causes conquassation to damage
Wound, finished product rate is not high, self-lubricating layer reliability is not high.Therefore, the new integral outer ring's formula self-lubricating joint of research and development
Bearing ball rotary pressing moulding device and method are very necessary.
Content of the invention
Easily cause conquassation damage, finished product rate not high and self-lubricating layer to improve existing oscillating bearing production technology
The not high deficiency of reliability, the present invention provides a kind of ball spinning forming device and the one-tenth of integral outer ring formula self-lubricating knuckle bearing
Shape method.This invention no acutely extrudes between inner surface self-lubricating layer and inner ring outer surface in the fabrication process, to self-lubricating
Layer not damaged, uniform force, the life-span of oscillating bearing and reliability are all obviously improved.
The technical solution adopted for the present invention to solve the technical problems is：A kind of integral outer ring formula self-lubricating knuckle bearing
Ball spinning forming device, is characterized in that：Inner cone face ring has the three groups of roller-ways matching respectively with large, medium and small three groups of balls, protects
Hold frame to be fixed on inner cone face ring and constrain on its corresponding roller-way by described large, medium and small three groups of balls, locking nut is by inner cone
Face ring is fixed on upper bolster.The center counterbore of base plate is coupled with lower mould by bolt built with mandrel, base plate, and described lower mould is
One dish with ladder circle post holes, wherein, is sequentially arranged with expansion sleeve outer shroud, in expansion sleeve in top ladder circle post holes I
Ring, middle part cylindrical hole II is matched with the shoulder of mandrel, installs disc spring in lower cylindrical hole III.
The outer surface of described expansion sleeve internal ring for conical external surface inner surface be the face of cylinder, described expansion sleeve outer shroud interior
Surface is the face of cylinder, the conical inner surface of described expansion sleeve outer shroud and the circle of expansion sleeve internal ring for conical inner surface outer surface
The taper of conical outer surface is identical, and expansion sleeve outer shroud and expansion sleeve internal ring process minute opening in circumferencial direction.
The upper surface of described expansion sleeve outer shroud processes uniform axial tommyhead bolt hole, processing and expansion sleeve on described lower mould
The corresponding screw hole in the tommyhead bolt hole of outer shroud upper surface, between the tommyhead bolt hole of expansion sleeve outer shroud upper surface is radially left
Gap.
Circumference is distributed in three groups of roller-ways of described inner cone face ring described large, medium and small three groups of balls respectively, from bottom to top presses
Order arrangement from big to small, large, medium and small three groups of balls can either roll in the respective roller-way of inner cone face ring, again can be
Revolve round the sun around mold axis under the drive of upper bolster, simultaneously can also be with upper bolster to lower feeding.
The section line in configured ends spinning face be straightway, described straightway parallel to the common tangent of large, medium and small ball, and
Angle with oscillating bearing axis is 20 °～45 °.
A kind of manufacturing process of the ball spinning forming device using described integral outer ring's formula self-lubricating knuckle bearing, institute
The method of stating comprises the following steps：
Step 1：Processing outer ring blank, outer ring blank is overall ring, and inner surface is shape of dehiscing, and outer surface is by positioning end
With configured ends composition, the outer surface of positioning end is the face of cylinder, and configured ends outer surface section line is curve, and its maximum outside diameter is finished product
1.1～1.3 times of oscillating bearing external diameter；Processed finished products oscillating bearing inner ring, glues through the outer ring blank inner surface of step processing
Attached self-lubricating layer, then bearing inner race is placed in the outer ring blank being stained with self-lubricating layer；
Step 2：Described bearing inner race is enclosed within and is positioned on the mandrel of described ball spinning forming device, described outer ring base
The positioning end of material passes through screw, and the expansion sleeve internal ring with opening and expansion sleeve outer shroud are fixed in the counterbore of lower mould, lower mould
It is fixed by screws on base plate；
Step 3：Upper bolster rotates under the driving of machine spindle, determines section line and the oscillating bearing in configured ends spinning face
The angle of axis is 20 °～45 °, upper bolster according to given technological parameter to lower feeding, big ball, middle ball, little ball three
Group ball priority is rolled on the spinning face of outer ring blank configured ends, with the feeding of upper bolster, the configured ends to outer ring blank
Carry out spinning, the inner surface of outer ring blank is gradually plastic deformation to sphere；
Step 4：When upper bolster reaches the target location setting, ball spinning shapes and completes；Pass after ball spinning shaping
Bearings, now, outer ring blank inner surface and the no locking of bearing inner race outer surface and extruding phenomenon, the gap between them meets
The clearance of finished product oscillating bearing requires.
Step 5：Finally, the end face to bearing outer ring and outer surface carry out turning, grinding, thus obtaining integral outer ring
Formula self-lubricating knuckle bearing finished product.
The present invention compared with prior art has advantages below：Solve outside existing integral outer ring formula self-lubricating knuckle bearing
Circle shapes and assembling damages to self-lubricating layer, in oscillating bearing ball spinning forming process, between bearing outer ring and bearing inner race
No locking and extruding phenomenon, affect on self-lubricating layer little, do not cause to damage, and can pass through the tune of ball spinning technological parameter
Whole realization control effectively to bearing clearance, and oscillating bearing has, after shaping, the bearing clearance meeting bearing finished products requirement.
Meanwhile, ball spinning becomes that deformation is uniform, plastic force is little, easily controllable, the bearing outer ring inner surface configuration that ball spinning shapes
Good with bearing inner race external surface shape concordance, uniform force, bearing life and reliability are all obviously improved.
Brief description
The structural representation of the ball spinning forming device of Tu1Shi integral outer ring formula self-lubricating knuckle bearing；
Fig. 2 is the structural representation of the lower mould of the present invention；
Fig. 3 is the structural representation of inner cone face ring, ball and the retainer of the present invention；
Fig. 4 be the manufacturing process of the present invention oscillating bearing ball spinning shaping before structural representation；
Fig. 5 be the manufacturing process of the present invention oscillating bearing ball spinning shaping after structural representation；
Fig. 6 is the structural representation of the oscillating bearing finished product of the present invention.
In above-mentioned accompanying drawing, 1. upper bolster, 2. inner cone face ring, 3. locking nut, 4. in ball, 5. bearing outer ring blank,
6. self-lubricating layer, 7. bearing inner race, 8. screw, 9. mandrel, 10. disc spring, 11. base plates, 12. times moulds, 13. expansion sleeve outer shrouds, 14.
Screw, 15. expansion sleeve internal ring, 16. retainers, 17. big balls, 18. little balls, 19. outer ring blank configured ends spinning faces, 20.
Outer ring blank positioning end, 21. outer ring blank configured ends.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment is described in detail.
Accompanying drawing 1-3 discloses a kind of ball spinning forming device of integral outer ring formula self-lubricating knuckle bearing, this forming device
Including upper bolster 1, locking nut 3, base plate 11, driving equipment and workbench.The top of upper bolster 1 is connected with driving equipment
Connect, the inner cone face ring 2 in the upper bolster 1 of installation is machined with the three groups of roller-ways matching respectively with large, medium and small three groups of balls.Protect
Hold frame 16 and be arranged on and in inner cone face ring 2, described large, medium and small three groups of balls are constrained in its corresponding roller-way, locking nut 3 will
Inner cone face ring 2 is fixed on upper bolster 1.The center counterbore of base plate 11 passes through bolt and lower mould 12 built with mandrel 9, base plate 11
Connect, lower mould 12 is fixing on the table.Described lower mould 12 is a dish with ladder circle post holes, wherein, top ladder
It is sequentially arranged with expansion sleeve outer shroud 13, expansion sleeve internal ring 15, middle part cylindrical hole II is matched with the shoulder of mandrel 9 in cylindrical hole I, under
Disc spring 10 is installed in portion's cylindrical hole III.
The outer surface of expansion sleeve internal ring 15 is conical external surface, and inner surface is the face of cylinder；Described expansion sleeve outer shroud 13
Inner surface be conical inner surface, outer surface be the face of cylinder, the two circumferencial direction have small opening tighten up for it or
Decontrol.The upper surface of expansion sleeve outer shroud 13 is machined with evenly distributed axial tommyhead bolt hole, on lower mould 12 processing with expansion sleeve outside
The corresponding screw hole in the tommyhead bolt hole of ring 13 upper surface.The upper surface tommyhead bolt hole of described expansion sleeve outer shroud 13 is radially stayed
There is gap, to ensure the change of tommyhead bolt hole site that expansion sleeve outer shroud 13 produces because of swelling.
Large, medium and small three groups of balls respectively circumference is distributed in three groups of roller-ways of described inner cone face ring 2, from bottom to top press from
Can either roll in the respective roller-way of inner cone face ring 2 to little tactic large, medium and small three groups of balls greatly, again can be
Under the drive of upper bolster 1, the axis around oscillating bearing revolves round the sun, simultaneously can also be with upper bolster 1 to lower feeding.
The section line in the configured ends spinning face of the ball spinning forming device of integral outer ring's formula self-lubricating knuckle bearing is straight
Line segment, this straightway is parallel to the common tangent of large, medium and small ball, in the present embodiment, the section line in above-mentioned configured ends spinning face
Angle with oscillating bearing axis is 40 °.
A kind of manufacturing process of the ball spinning forming device using described integral outer ring's formula self-lubricating knuckle bearing, institute
The method of stating comprises the following steps：
Step 1：Processing outer ring blank 5, outer ring blank 5 for overall ring, inner surface is shape of dehiscing, and outer surface is by fixed
Position end 20 is formed with configured ends 21, and the outer surface of positioning end 20 is the face of cylinder, and configured ends 21 outer surface section line is curve, and it is
Big external diameter is 1.2 times of finished product oscillating bearing external diameter.Processed finished products oscillating bearing inner ring 7, taking GE20 type oscillating bearing as a example, its
Internal diameter is 20mm, and spherical diameter is 29mm, and highly (inner race width) is 16mm, through outer ring blank 5 inner surface of step 1 processing
Adhesion self-lubricating layer 6, then bearing inner race 7 is placed in the outer ring blank 5 be stained with self-lubricating layer 6 (see Fig. 4).
Step 2：Bearing inner race 7 is enclosed within the mandrel 9 of described ball spinning forming device and is positioned, described outer ring base
The positioning end 20 of material 5 passes through tightening screw 14, and the expansion sleeve internal ring 15 with opening and expansion sleeve outer shroud 13 are fixed on lower mould
On mandrel 9 in 12 counterbore, lower mould 12 is fixed on base plate 11 by screw 8, makes base plate 11 solid with workbench using bolt
Fixed.
Step 3：Upper bolster 1 rotates under the driving of machine spindle, determines section line and the pass in configured ends 21 spinning face 19
The angle of nodal axisn bearing axis is 40 °, upper bolster 1 according to given technological parameter to lower feeding, big ball 17, middle ball 4, little rolling
18 3 groups of ball priorities of pearl are rolled on the spinning face 19 of outer ring blank 5 configured ends 21, with the feeding of upper bolster 1, to outer ring
The configured ends 21 of blank 5 carry out spinning, and the inner surface of outer ring blank 5 is gradually plastic deformation to sphere.
Step 4：When upper bolster 1 reaches the target location setting, ball spinning shapes and completes.Pass after ball spinning shaping
Bearings, now, outer ring blank 5 inner surface and the no locking of bearing inner race 7 outer surface and extruding phenomenon, the gap character between them
The clearance of composite oscillating bearing requires (see Fig. 5).
Step 5：Finally, the end face to bearing outer ring 5 and outer surface carry out turning, grinding, thus obtaining overall outer
Ring type self-lubricating knuckle bearing finished product (see Fig. 6).
By changing inner cone face ring 2, retainer 16 and big ball 17, middle ball 4, little ball 18, achievable ball rotation
The purpose of pressure different size integral outer ring formula self-lubricating knuckle bearing.The disc spring 10 installed between mandrel 9 and base plate 11, can make rolling
It is flexible contact between pearl spinning process middle (center) bearing inner ring 7 and outer ring blank 5, thus preventing from self-lubricating layer being caused damage.
Claims (6)
1. a kind of ball spinning forming device of integral outer ring formula self-lubricating knuckle bearing, is characterized in that：Inner cone face ring (2) has point
The three groups of roller-ways not matched with large, medium and small three groups of balls, retainer (16) be fixed on inner cone face ring (2) and by described big,
Middle or small three groups of balls constrain on its corresponding roller-way, and inner cone face ring (2) is fixed on upper bolster (1) locking nut (3)；
The center counterbore of base plate (11) is connected with lower mould (12) by screw (8) built with mandrel (9), base plate (11), described lower mould
(12) it is a dish with ladder circle post holes, wherein, in top ladder circle post holes I, be sequentially arranged with expansion sleeve outer shroud
(13), expansion sleeve internal ring (15), middle part cylindrical hole II is matched with the shoulder of mandrel (9), installs disc spring in lower cylindrical hole III
(10).
2. the ball spinning forming device of integral outer ring according to claim 1 formula self-lubricating knuckle bearing, is characterized in that：
The outer surface of described expansion sleeve internal ring (15) is conical external surface, and inner surface is the face of cylinder, described expansion sleeve outer shroud (13)
Inner surface is conical inner surface, and outer surface is the face of cylinder, the conical inner surface of described expansion sleeve outer shroud (13) and expansion sleeve
The taper of the conical external surface of internal ring (15) is identical, and expansion sleeve outer shroud (13) and expansion sleeve internal ring (15) are processed in circumferencial direction
Minute opening.
3. the ball spinning forming device of integral outer ring according to claim 2 formula self-lubricating knuckle bearing, is characterized in that：
The upper surface of described expansion sleeve outer shroud (13) processes uniform axial tommyhead bolt hole, and described lower mould (12) is upper to process and expansion sleeve
The corresponding screw hole in the tommyhead bolt hole of outer shroud (13) upper surface, the tommyhead bolt hole of the upper surface of expansion sleeve outer shroud (13) is along footpath
To leaving gap.
4. the ball spinning forming device of integral outer ring according to claim 1 formula self-lubricating knuckle bearing, is characterized in that：
It is characterized in that：Circumference is distributed in three groups of roller-ways of described inner cone face ring (2) described large, medium and small three groups of balls respectively, by lower and
The upper order arrangement pressed from big to small, large, medium and small three groups of balls can either roll in the respective roller-way of inner cone face ring (2), and
Can revolve round the sun around mold axis under the drive of upper bolster (1), simultaneously can also be with upper bolster (1) to lower feeding.
5. the ball spinning forming device of the integral outer ring's formula self-lubricating knuckle bearing according to claim 1 or 4, its feature
It is：The section line in configured ends spinning face is straightway, and described straightway is parallel to the common tangent of large, medium and small ball, and and joint
The angle of bearing axis is 20 °～45 °.
6. a kind of usage right requires the shaping of the ball spinning forming device of integral outer ring's formula self-lubricating knuckle bearing described in 1
Method, is characterized in that：The method comprising the steps of：
Step 1：Processing bearing outer ring blank (5), bearing outer ring blank (5) is overall ring, and inner surface is shape of dehiscing, appearance
Face is made up of with configured ends (21) positioning end (20), and the outer surface of positioning end (20) is the face of cylinder, and configured ends (21) outer surface cuts
Upper thread is curve, and its maximum outside diameter is 1.1～1.3 times of finished product oscillating bearing external diameter；
Step 2：Processed finished products oscillating bearing inner ring (7), adhere to certainly through bearing outer ring blank (5) inner surface of step 1 processing
Lubricating layer (6), then bearing inner race (7) is placed in the bearing outer ring blank (5) being stained with self-lubricating layer (6)；
Step 3：Described bearing inner race (7) is enclosed within and is positioned on the mandrel (9) of described ball spinning forming device, described bearing
The positioning end (20) of outer ring blank (5) passes through screw (14), and the expansion sleeve internal ring (15) with opening and expansion sleeve outer shroud
(13) it is fixed in the counterbore of lower mould (12), lower mould (12) is fixed on base plate (11) by screw (8)；
Step 4：Upper bolster (1) rotates under the driving of machine spindle, determine the section line in configured ends (21) spinning face (19) with
The angle of oscillating bearing axis is 40 °, upper bolster (1) according to given technological parameter to lower feeding, big ball (17), middle ball
(4), little (18) three groups of ball priorities of ball are rolled on the spinning face (19) of bearing outer ring blank (5) configured ends (21), with
The feeding of upper bolster (1), the configured ends (21) to bearing outer ring blank (5) carry out spinning, the inner surface of bearing outer ring blank (5)
Gradually it is plastic deformation to sphere；
Step 5：When upper bolster (1) reaches the target location setting, ball spinning shapes and completes；Joint after ball spinning shaping
Bearing, now, bearing outer ring blank (5) inner surface and the no locking of bearing inner race (7) outer surface and extruding phenomenon, between them
The clearance of gap character composite oscillating bearing requires；
Step 6：Finally, turning, grinding are carried out to the end face and outer surface of bearing outer ring blank (5), thus obtaining entirety
Outer ring type self-lubricating knuckle bearing finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203029.4A CN104874979B (en) | 2015-04-27 | 2015-04-27 | The ball spinning forming device of integral outer ring's formula self-lubricating knuckle bearing and manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203029.4A CN104874979B (en) | 2015-04-27 | 2015-04-27 | The ball spinning forming device of integral outer ring's formula self-lubricating knuckle bearing and manufacturing process |
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| CN104874979B true CN104874979B (en) | 2017-03-01 |
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| CN106271438A (en) * | 2016-08-30 | 2017-01-04 | 上海交通大学 | The manufacturing process of integral outer ring's formula self-lubricating knuckle bearing |
| CN106944524A (en) * | 2017-03-30 | 2017-07-14 | 上海大学 | Monoblock type self-lubricating knuckle bearing spin forming method |
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| CN109798304B (en) * | 2019-01-08 | 2021-03-23 | 上海市轴承技术研究所 | Integral self-lubricating joint bearing equipment and folding forming method thereof |
| CN115255874B (en) * | 2022-07-28 | 2023-11-14 | 四川航天烽火伺服控制技术有限公司 | Joint bearing closing-in device |
| CN116652033B (en) * | 2023-07-28 | 2023-10-27 | 季华实验室 | Self-lubricating knuckle bearing extrusion forming die with adjustable size |
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| DD116405A1 (en) * | 1974-11-27 | 1975-11-20 | ||
| US4089095A (en) * | 1977-01-11 | 1978-05-16 | Textron Inc. | Seal means for a self-aligning bearing and method of making the same |
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| CN104874979A (en) | 2015-09-02 |
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