CN109226613A - The milling method for preventing bearing collar path from folding - Google Patents
The milling method for preventing bearing collar path from folding Download PDFInfo
- Publication number
- CN109226613A CN109226613A CN201811199090.6A CN201811199090A CN109226613A CN 109226613 A CN109226613 A CN 109226613A CN 201811199090 A CN201811199090 A CN 201811199090A CN 109226613 A CN109226613 A CN 109226613A
- Authority
- CN
- China
- Prior art keywords
- roll
- forging piece
- piece blank
- annular forging
- mandrel
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
- B21H1/12—Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a kind of milling methods for preventing bearing collar path from folding, comprising the following steps: annular forging piece blank is made in step 1, press machine；Step 2, staving press include king roller, mandrel and guide roller；King roller, mandrel and guide roller are processed on roll vehicle or grinding machine；King roller is the roll that the body of roll is 65mm ± 0.15mm with groove, body of roll width；Mandrel is the roll protruded at body of roll stringcourse；Guide roller is the roll that the body of roll is cylindrical body；Step 3 covers annular forging piece blank on mandrel, and king roller presses to mandrel while rotation；Step 4, mandrel are close to the inner wall rotation of annular forging piece blank, and radially linear motion makes the enlarged-diameter of annular forging piece blank, and king roller goes out raceway in the outer diameter roll off of annular forging piece blank；There are two guide rollers, and the straight tube outer diameter of two guide rollers is close to the outer surface of annular forging piece blank during roll off, with annular forging piece blank enlarged outside diameter while rotate, annular forging piece blank is limited on staving press.The groove protruding portion of king roller requires wide 3mm than technique.The present invention has low consumption, efficient, good technical characterstic.
Description
Technical field
The present invention relates to bearing mnanufacture fields, in particular to the milling method for preventing bearing collar path from folding.
Background technique
Bearing is a kind of important spare part in contemporary mechanical equipment, its major function is to support mechanical rotary body, drop
Coefficient of friction in its low motion process, and guarantee its rotating accuracy.Service life and machine of the performance of bearing ring to bearing
The safe and reliable operation of tool equipment is most important.The manufacture forming of bearing ring is the key that bearing mnanufacture.Bearing ring tradition
Manufacturing process be open die forging reaming and machining, i.e., first on press machine by core axial hole machining be made rectangular section ring forging
Then part processes cross section profile by machine cut.
Traditional manufacturing technique needs the protrusion height of the body of roll protrusion height of guide roller and the body of roll of king roller corresponding, thus
It is rolled, obtains the raceway of bearing ring.However the repetition of multiple convexitys rolling can generate the folding of bearing collar path
Phenomenon leads to many disadvantages such as energy consumption is high, stock utilization is low, low efficiency, capability and performance difference.
Summary of the invention
In view of the deficiencies of the prior art, the invention discloses the milling methods for preventing bearing collar path from folding.
The technical solution adopted in the present invention is as follows:
A kind of milling method for preventing bearing collar path from folding, comprising the following steps:
Step 1 takes diameter >=200mm ring with odd-shaped cross section, and the annular forging piece hair of rectangular section is made by press machine
Base；
Step 2, the accessory for processing staving press；The accessory of staving press includes king roller, mandrel and guide roller；King roller, core
Axis and guide roller are processed on roll vehicle or grinding machine；By king roller be processed as the body of roll band groove, body of roll width be 65mm ±
The roll of 0.15mm；Mandrel is processed as the tapered roll in tail portion；Guide roller is processed as the roll that the body of roll is cylindrical body；
Step 3 covers annular forging piece blank on mandrel, and king roller is rotating close to annular forging piece blank；King roller
It is rotated around the outer surface of annular forging piece blank；King roller is contacted with annular forging piece blank generates frictional force, drives annular forging piece hair
Base rotation；The body of roll of king roller transmits pressure, carries out roll off around the outer surface of annular forging piece blank；
Step 4, mandrel pass through the central through hole of annular forging piece blank；The inner wall of mandrel abutting annular forging piece blank；Mandrel
It is contacted with annular forging piece blank and generates frictional force, band moving mandrel rotates；Mandrel carries out roll off to central through hole, and central through hole is along diameter
Expand to straight line；King roller goes out raceway, while the enlarged-diameter of annular forging piece blank in the outer surface roll off of annular forging piece blank；
There are two guide rollers, and two guide rollers are close to the outer surface of annular forging piece blank during roll off, with annular forging piece blank
Enlarged outside diameter, which is done, to be rotated, and annular forging piece blank is limited on staving press.
Beneficial effects of the present invention are as follows:
Press machine makes king roller drive roll, and radially straight line, passive rotation expand in annular forging piece blank mandrel
Heart through-hole, guide roller are close to the outer surface of annular forging piece blank during the rolling process, with the enlarged outside diameter of annular forging piece blank
Do translational motion, come guarantee stability and roll forming in the operation of rolling annular forging piece blank circularity.The present invention passes through
The groove protruding portion of king roller is widened into 3mm than the width that technique requires, guide roller is the roll of not belt shape, it is possible thereby to subtract
It repeats to avoid the raceway of bearing ring from folding the rolling of bearing ring less.Relative to traditional handicraft, production work of the invention
Skill has low consumption, efficient, good significant technical and economic characteristic.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Fig. 2 is schematic diagram of the invention.
Fig. 3 is the sectional view of king roller in Fig. 2.
In figure: 1, annular forging piece blank；2, king roller；3, mandrel；4, guide roller.
Specific embodiment
With reference to the accompanying drawing, illustrate the specific embodiment of the present embodiment.
Fig. 1 is process flow chart of the invention, and Fig. 2 is schematic diagram of the invention.In conjunction with Fig. 1, Fig. 2, one kind preventing bearing
The milling method that lasso raceway folds, comprising the following steps:
Step 1 takes diameter >=200mm ring with odd-shaped cross section, and the annular forging piece hair of rectangular section is made by press machine
Base 1.
Step 2, the accessory for processing staving press.The accessory of staving press includes king roller 2, mandrel 3 and guide roller 4.Master is rolled
Roller 2, mandrel 3 and guide roller are processed on roll vehicle or grinding machine.Fig. 3 is the sectional view of king roller in Fig. 2.As shown in figure 3,
King roller 2 is processed as the body of roll with groove, the roll that body of roll width is 65mm ± 0.15mm.It is tapered that mandrel 3 is processed as tail portion
Roll.Guide roller 4 is processed as the roll that the body of roll is cylindrical body.The roller head of king roller 2, mandrel 3 and guide roller 4 is and reaming
The connecting shaft of machine connects.The body of roll of roll is fixedly connected with club head.
Step 3, by 1 set of annular forging piece blank on mandrel 3.King roller 2 bears huge draught pressure, passes to annular
Forging blank 1.Specifically, king roller 2 is contacted with annular forging piece blank 1 generates frictional force, annular forging piece blank 1 is driven to rotate,
The body of roll of king roller 2 is around the rotation of the outer surface of annular forging piece blank 1, roll off.
Step 4, mandrel 3 pass through the central through hole of annular forging piece blank 1.The inner wall of the abutting annular forging piece blank 1 of mandrel 3.
Mandrel 3 is contacted with annular forging piece blank 1 generates frictional force, and band moving mandrel 3 rotates.Mandrel 3 carries out roll off to central through hole.Center
Radially straight line expands through-hole, and king roller 2 goes out raceway, while annular forging piece blank 1 in the outer surface roll off of annular forging piece blank 1
Enlarged-diameter.There are two guide rollers 4, and two guide rollers 4 are close to the outer surface of annular forging piece blank 1 during roll off, with
The enlarged outside diameter of annular forging piece blank 1, which is done, to be rotated, and annular forging piece blank 1 is limited on staving press, to guarantee in the operation of rolling
Stability and roll forming annular forging piece blank 1 circularity.
In the operation of rolling, the rotation of king roller 2, the rotation of mandrel 3 and the rotation of guide roller 4 carry out simultaneously.
King roller 2 is roll of the body of roll with groove, and the width that the groove protruding portion of king roller 2 is required than technique widens 3mm.
Guide roller 4 is the roll of the body of roll not belt shape, it is possible thereby to which the rolling reduced to bearing ring repeats to make annular forging piece blank 1
Part generate plastic deformation, so that the raceway of bearing ring be avoided to fold.
The method of roll vehicle or grinding machine processing roll is the prior art.The material of king roller 2, mandrel 3 and guide roller 4 is this
The common knowledge in field can be selected as needed by those skilled in the art.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that the present invention can make any type of modification without prejudice to basic structure of the invention.
Claims (1)
1. a kind of milling method for preventing bearing collar path from folding, it is characterised in that the following steps are included:
Step 1 takes diameter >=200mm ring with odd-shaped cross section, and the annular forging piece blank of rectangular section is made by press machine
(1)；
Step 2, the accessory for processing staving press；The accessory of staving press includes king roller (2), mandrel (3) and guide roller (4)；Master rolls
Roller (2), mandrel (3) and guide roller (4) are processed on roll vehicle or grinding machine；By king roller (2) be processed as the body of roll band groove,
Body of roll width is the roll of 65mm ± 0.15mm；Mandrel (3) is processed as the tapered roll in tail portion；Guide roller (4) is processed as
The body of roll is the roll of cylindrical body；
Step 3 covers annular forging piece blank (1) on mandrel (3), and king roller (2) is rotating to annular forging piece blank (1) and leans on
Closely；King roller (2) is rotated around the outer surface of annular forging piece blank (1)；King roller (2) contacts generation with annular forging piece blank (1)
Frictional force drives annular forging piece blank (1) rotation；The body of roll of king roller (2) transmits pressure, around the outer of annular forging piece blank (1)
Surface carries out roll off；
Step 4, mandrel (3) pass through the central through hole of annular forging piece blank (1)；Mandrel (3) is close to the interior of annular forging piece blank (1)
Wall；Mandrel (3) is contacted with annular forging piece blank (1) generates frictional force, and band moving mandrel (3) rotates；Mandrel (3) to central through hole into
Row roll off, radially straight line expands central through hole；King roller (2) goes out raceway in the outer surface roll off of annular forging piece blank (1), together
When annular forging piece blank (1) enlarged-diameter；There are two guide rollers (4), and two guide rollers (4) are close to annular during roll off
The outer surface of forging blank (1) is done with the enlarged outside diameter of annular forging piece blank (1) and is rotated, and annular forging piece blank (1) is limited in
On staving press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199090.6A CN109226613A (en) | 2018-10-15 | 2018-10-15 | The milling method for preventing bearing collar path from folding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199090.6A CN109226613A (en) | 2018-10-15 | 2018-10-15 | The milling method for preventing bearing collar path from folding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109226613A true CN109226613A (en) | 2019-01-18 |
Family
ID=65052852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811199090.6A Pending CN109226613A (en) | 2018-10-15 | 2018-10-15 | The milling method for preventing bearing collar path from folding |
Country Status (1)
| Country | Link |
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| CN (1) | CN109226613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420992A (en) * | 2020-01-03 | 2020-07-17 | 华中科技大学 | Sizing rolling forming method for axial inner rib cylindrical part |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020282A (en) * | 2006-12-06 | 2007-08-22 | 贵州安大航空锻造有限责任公司 | Rolling forming process for large hollow disc forging |
| CN102489638A (en) * | 2011-12-27 | 2012-06-13 | 张家港海陆环形锻件有限公司 | Radial and axial roll-forming method for large internal-stage annular piece |
| CN102909535A (en) * | 2012-11-01 | 2013-02-06 | 无锡民联轴承制造有限公司 | Method for rolling and forging bearing ring once |
| CN204396757U (en) * | 2014-12-10 | 2015-06-17 | 江阴圣道奇科技有限公司 | Bearing forging is with grinding expansion machine |
| EP2769781B1 (en) * | 2013-02-21 | 2017-11-29 | Aktiebolaget SKF | A cold rolling method for forming bearing rings |
| CN207695543U (en) * | 2017-12-07 | 2018-08-07 | 洛阳Lyc轴承有限公司 | A kind of railway bearing housing forging profiling rolling mold |
-
2018
- 2018-10-15 CN CN201811199090.6A patent/CN109226613A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020282A (en) * | 2006-12-06 | 2007-08-22 | 贵州安大航空锻造有限责任公司 | Rolling forming process for large hollow disc forging |
| CN102489638A (en) * | 2011-12-27 | 2012-06-13 | 张家港海陆环形锻件有限公司 | Radial and axial roll-forming method for large internal-stage annular piece |
| CN102909535A (en) * | 2012-11-01 | 2013-02-06 | 无锡民联轴承制造有限公司 | Method for rolling and forging bearing ring once |
| EP2769781B1 (en) * | 2013-02-21 | 2017-11-29 | Aktiebolaget SKF | A cold rolling method for forming bearing rings |
| CN204396757U (en) * | 2014-12-10 | 2015-06-17 | 江阴圣道奇科技有限公司 | Bearing forging is with grinding expansion machine |
| CN207695543U (en) * | 2017-12-07 | 2018-08-07 | 洛阳Lyc轴承有限公司 | A kind of railway bearing housing forging profiling rolling mold |
Non-Patent Citations (1)
| Title |
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| 《线材生产》编写组编: "《线材生产》", 31 January 1983 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420992A (en) * | 2020-01-03 | 2020-07-17 | 华中科技大学 | Sizing rolling forming method for axial inner rib cylindrical part |
| CN111420992B (en) * | 2020-01-03 | 2021-06-11 | 华中科技大学 | Sizing rolling forming method for axial inner rib cylindrical part |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |