CN114001098A - Hub bearing production process - Google Patents
Hub bearing production process Download PDFInfo
- Publication number
- CN114001098A CN114001098A CN202111297547.9A CN202111297547A CN114001098A CN 114001098 A CN114001098 A CN 114001098A CN 202111297547 A CN202111297547 A CN 202111297547A CN 114001098 A CN114001098 A CN 114001098A
- Authority
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- China
- Prior art keywords
- hub bearing
- riveting
- flange plate
- boss
- production process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000005056 compaction Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013100 final test Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/52—Positive connections with plastic deformation, e.g. caulking or staking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a hub bearing production process, which comprises a riveting head and comprises the following process steps: firstly, assembling a hub bearing; secondly, placing the assembled hub bearing on a clamp for clamping; thirdly, riveting and rotating the hub bearing through a rotary riveting head, wherein the inclination angle of the riveting head is 5.5 degrees, the middle of the riveting head is convex, the outer right-angle edge of the riveting head is changed into a negative angle which is basically between 10 degrees and 12 degrees with the horizontal plane, the axial riveting assembly force is 120kN, and the axial riveting assembly force is 120 kN; and fourthly, sampling inspection. The process effectively increases the length of the contact line between the flange of the flanging and the small inner ring, and reduces the phenomenon of non-compaction.
Description
Technical Field
The invention relates to a bearing production process, in particular to a hub bearing production process.
Background
The third generation sedan wheel hub bearing is a bearing unit which directly connects a suspension and a wheel hub through two flange end faces. The hub bearing unit mainly has two assembling modes: nut clamping type assembly and riveting assembly by adopting a swing rolling technology. The swing rolling technology is characterized in that a rolling pressure head is periodically contacted with a workpiece locally, quasi-static pressure is applied, the workpiece is gradually deformed and accumulated to be formed, the force is small, no cutting machining is performed, strong vibration and noise are avoided, net-shape machining can be achieved, and the swing rolling technology is widely applied to various industries such as automobiles, machine tools, electric appliances, light industry, hoisting machinery and the like. The shaft riveting assembly of the hub bearing unit adopting the swing rolling technology has the characteristics of material saving, energy saving, high efficiency and safety.
In the process of pendulum riveting assembly of the hub bearing unit, the shape of the riveting head has obvious influence on metal flow (filling property) of the riveted shaft end during plastic deformation, so that the pendulum riveting assembly quality is greatly influenced. In the case where the angle of inclination of the rivet head has been selected, an unreasonable shape of the rivet head may result in a less than solid rivet workpiece or interference between the rivet head and the rivet workpiece, thereby reducing the service life of the rivet head. If the included angle between the outer straight edge of the rivet head and the horizontal line is too large (positive), the radial fluidity of the riveted workpiece is too large, the axial fluidity is insufficient, the length of the contact line between the flanging flange and the small inner ring is insufficient, and the phenomenon of compaction even occurs in severe cases.
Disclosure of Invention
The invention aims to provide a hub bearing production process which effectively increases the length of a contact line between a flange and a small inner ring and reduces the phenomenon of uncompacted.
The technical purpose of the invention is realized by the following technical scheme:
a hub bearing production process comprises a rivet head, and comprises the following process steps:
firstly, assembling a hub bearing;
secondly, placing the assembled hub bearing on a clamp for clamping;
thirdly, riveting and rotating the hub bearing through a rotating rivet head, wherein the inclination angle of the rivet head is 5.5 degrees, the middle of the rivet head is protruded, the outer right-angle edge of the rivet head is changed into a negative angle and basically forms an angle of 10-12 degrees with the horizontal plane, the axial riveting assembly force is 120kN, and the axial riveting assembly force is 120 kN;
and fourthly, sampling inspection.
By adopting the technical scheme, the rivet head inclination angle of the traditional shaft riveting machine is 3 degrees, obvious shrinkage cavity phenomenon exists, the rivet head inclination angle is difficult to control, when the rivet head inclination angle is less than 5.5 degrees, the inner hole aperture variation ranges of different axial positions of the riveted shaft end are different, the inner hole is shrunk near the shaft end, and the inner hole is expanded near the root; when the inclination angle of the rivet head is larger than 5.5 degrees, the bore diameter of the inner bore of the riveted shaft end is continuously increased along with the increase of the inclination angle of the rivet head; in addition, the change range of the shrinkage cavity size is increased and then reduced along with the increase of the inclination angle of the rivet head. The final test result shows that the optimum rivet head inclination angle is about 5.5 degrees, and the shrinkage cavity size variation range is close to 0.
Preferably, the transition arc radius of the rivet head is R2.5mm.
By adopting the technical scheme, the outer straight edge is changed into the negative angle in the shape of the rivet head, the radius of the transition arc is more than R2.5mm, and the height of the flange at the end of the riveted shaft is reduced so as to prevent the generation of plastic hinge. The radius of the circular arc of the small inner ring chamfer is reduced to improve the axial clamping force, and the inner hole of the flange shaft is rounded to better protect the rivet head and prolong the service life of the rivet head.
As preferred, the wheel hub bearing includes the ring flange, the ring flange overcoat has the outer lane, be equipped with the ball between outer lane and the ring flange, its characterized in that, be equipped with the round platform on the ring flange, form an annular between round platform and the ring flange, the outer lane inner wall is equipped with the boss, boss one side is stretched out the outer lane and is gone into the card and go into the annular, and the opposite side is located inside the outer lane, and both sides all are equipped with the standing groove, the ball is located the standing groove, the boss is located that the outer lane is equipped with the inner circle between that side and the ring flange.
By adopting the technical scheme, the boss is clamped into the ring groove in the circular truncated cone, the stress direction of the A, C-position ball is changed, and the flange plate is acted by external load and moment transmitted from the outside. A, C ball ascending power has been given to external load, the ball of C department contacts with ring flange and outer lane completely this moment, C department ball has an ascending trend, and the special construction of outer lane has just played a lever effect this moment, C department ball receives ascending power, this structure makes D department ball receive a downward power, D department ball produces a reverse power after the pressurized, thereby give C department ball a downward power again, make C department ball atress reduce, therefore, the ball atress condition that will make C, D department obtains certain degree improvement. Similarly, the load of the A, D ball will be increased by the moment, the ball at position a will be subjected to a downward force by the action of the moment on the ball at position a, and this force will be offset by a part of the upward force generated by the external load, so that the force applied to the ball at position a will be improved, and the force applied to the ball at position A, B will be improved by the lever-like structure of the outer ring. The hub bearing with the improved structure enables balls at four positions to be coordinated in stress, and therefore the condition that local balls are stressed too much is improved.
Preferably, the inner ring of the riveted shaft end of the flange plate is provided with a chamfer.
Drawings
FIG. 1 is a perspective view of one embodiment of the invention;
FIG. 2 is a side cross-sectional view of the inventive rivet head;
FIG. 3 is a cross-sectional view of the inventive bearing structure;
fig. 4 is a side sectional view of a conventional bearing.
Reference numerals: 1. a flange plate; 2. an outer ring; 3. a ball bearing; 4. a circular truncated cone; 5. a boss; 6. a placement groove; 7. an inner ring; 8. and (6) riveting the head.
Detailed Description
The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.
Referring to fig. 1 to 4, a hub bearing production process includes a rivet 8, and is characterized in that the process includes the following steps:
firstly, assembling a hub bearing;
secondly, placing the assembled hub bearing on a clamp for clamping;
thirdly, riveting and rotating the hub bearing by rotating the rivet head 8, wherein the inclination angle of the rivet head 8 is 5.5 degrees, the middle of the rivet head 8 is convex, the outer right-angle side of the rivet head 8 is changed into a negative angle which is basically between 10 degrees and 12 degrees with the horizontal plane, the axial riveting assembly force is 120kN, the inclination angle of the rivet head 8 of the traditional shaft riveting machine is 3 degrees, obvious shrinkage hole phenomenon exists and the control is difficult, when the inclination angle of the rivet head 8 is less than 5.5 degrees, the variation range of the inner hole aperture of different axial positions of the riveted shaft end is different, the inner hole is reduced near the shaft end, and the inner hole is enlarged near the root; when the inclination angle of the rivet head 8 is larger than 5.5 degrees, the bore diameter of the inner bore of the riveted shaft end is continuously increased along with the increase of the inclination angle of the rivet head 8; furthermore, the range of variation of the size of the shrinkage cavity increases and then decreases as the angle of inclination of the rivet head 8 increases. The final test result shows that the optimal rivet head 8 inclination angle is about 5.5 degrees, the size change range of the shrinkage cavity is close to 0, the transition arc radius of the rivet head 8 is R2.5mm, the outer straight edge of the rivet head 8 is changed into a negative angle, the transition arc radius is over R2.5mm, the height of the rivet head is reduced by the flange at the end of the rivet shaft, and the plastic hinge is prevented. The radius of the chamfer arc of the small inner ring 7 is reduced to improve the axial clamping force, and the inner hole of the flange shaft is rounded to better protect the rivet head 8 and prolong the service life of the rivet head;
and fourthly, sampling inspection.
The wheel hub bearing includes ring flange 1, ring flange 1 is riveted axle end inner circle 7 and is 2.5mm to the circular arc radius, ring flange 1 overcoat has outer lane 2, be equipped with ball 3 between outer lane 2 and the ring flange 1, be equipped with round platform 4 on the ring flange 1, form an annular between round platform 4 and the ring flange 1, 2 inner walls in outer lane are equipped with boss 5, 5 one side of boss stretches out outer lane 2 and the card income annular, the opposite side is located outer lane 2 inside, and both sides all are equipped with standing groove 6, ball 3 is located standing groove 6, boss 5 is located that side in outer lane 2 and ring flange 1 between be equipped with inner circle 7, go into the annular in round platform 4 through boss 5 card, change A, C position ball 3's atress direction, receive the effect of external load and the moment that external world transmitted and come on the ring flange 1. The external load gives A, C ball 3 an ascending power, this moment the ball 3 of C department contacts with ring flange 1 and outer lane 2 completely, C department ball 3 has an ascending trend, and the special construction of outer lane 2 has just played a lever effect this moment, C department ball 3 receives ascending power, this structure makes D department ball 3 receive a downward power, D department ball 3 produces a reverse power after the pressurized, thereby give C department ball 3 a downward power again, make C department ball 3 atress reduce, therefore, will make C, D department ball 3 atress condition obtain certain degree improvement. Similarly, the load of A, D ball 3 will be increased by the moment, the action of the moment on a ball 3 makes a part of the downward force applied to a ball 3, and this force will cancel out a part of the upward force generated by the external load, so that the force applied to a ball 3 will be improved, and the lever-like structure of the outer ring 2 will also improve the force applied to A, B ball 3. The hub bearing with the improved structure enables the balls 3 at four positions to be coordinated in stress, so that the condition that the stress of the local balls 3 is too large is improved.
Claims (4)
1. The production process of the hub bearing comprises a rivet head (8), and is characterized by comprising the following process steps:
firstly, assembling a hub bearing;
secondly, placing the assembled hub bearing on a clamp for clamping;
thirdly, riveting and rotating a hub bearing through a rotary riveting head (8), wherein the inclination angle of the riveting head (8) is 5.5 degrees, the middle of the riveting head (8) is convex, the outer right-angle side is changed into a negative angle and basically forms an angle of 10-12 degrees with the horizontal plane, the axial riveting assembly force is 120kN, and the axial riveting assembly force is 120 kN;
and fourthly, sampling inspection.
2. A hub bearing production process according to claim 1, wherein the transition arc radius of the rivet head (8) is taken as r2.5 mm.
3. A hub bearing production process according to claim 2, characterized in that the hub bearing comprises a flange plate (1), an outer ring (2) is sleeved outside the flange plate (1), balls (3) are arranged between the outer ring (2) and the flange plate (1), a round table (4) is arranged on the flange plate (1), an annular groove is formed between the round table (4) and the flange plate (1), a boss (5) is arranged on the inner wall of the outer ring (2), one side of the boss (5) stretches out of the outer ring (2) and is clamped into the annular groove, the other side of the boss is positioned inside the outer ring (2), both sides of the boss are provided with a placing groove (6), the balls (3) are positioned in the placing groove (6), and an inner ring (7) is arranged between the side of the boss (5) positioned in the outer ring (2) and the flange plate (1).
4. A hub bearing production process according to claim 3, wherein the riveted shaft end inner ring (7) of the flange plate (1) is provided with a chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111297547.9A CN114001098B (en) | 2021-11-04 | 2021-11-04 | Hub bearing production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111297547.9A CN114001098B (en) | 2021-11-04 | 2021-11-04 | Hub bearing production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114001098A true CN114001098A (en) | 2022-02-01 |
| CN114001098B CN114001098B (en) | 2023-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111297547.9A Active CN114001098B (en) | 2021-11-04 | 2021-11-04 | Hub bearing production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001098B (en) |
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2021
- 2021-11-04 CN CN202111297547.9A patent/CN114001098B/en active Active
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| CN114001098B (en) | 2023-12-08 |
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Denomination of invention: A production process for wheel hub bearings Granted publication date: 20231208 Pledgee: Hua Xia Bank Co.,Ltd. Shaoxing Shengzhou Sub branch Pledgor: Zhejiang Lingtian Technology Co.,Ltd. Registration number: Y2024980003654 |
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