CN108273951A - Bearing ring forging line and bearing ring production technology - Google Patents
Bearing ring forging line and bearing ring production technology Download PDFInfo
- Publication number
- CN108273951A CN108273951A CN201810162887.2A CN201810162887A CN108273951A CN 108273951 A CN108273951 A CN 108273951A CN 201810162887 A CN201810162887 A CN 201810162887A CN 108273951 A CN108273951 A CN 108273951A
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- Prior art keywords
- station
- bar workpiece
- upset
- robot
- moved
- 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.)
- Pending
Links
- 238000005242 forging Methods 0.000 title claims abstract description 31
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000007493 shaping process Methods 0.000 claims abstract description 47
- 238000005096 rolling process Methods 0.000 claims abstract description 43
- 238000004080 punching Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 208000025599 Heat Stress disease Diseases 0.000 description 1
- 206010019330 Heat cramps Diseases 0.000 description 1
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/04—Making machine elements ball-races or sliding bearing races
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of bearing ring forging line and bearing ring production technologies,Bearing ring forging line has heating station,Upset station,Punching station,Rolling ring station,First pose adjustment station,Second pose adjustment station and shaping station,It includes the heating furnace for forming bar workpiece after being heated to the bearing ferrule blanks on heating station,The first robot for the bar workpiece after erectting to be moved to upset station,For carrying out upset upset press machine to the bar workpiece on upset station,The transfer device of punching station is moved to for the bar workpiece after will be upset on upset station,Punching press machine for being punched out to the bar workpiece on punching station,First attitude-adjusting system,Second robot,Ring rolls,Second attitude-adjusting system,Third robot and shaping press machine.The present invention can realize the automatic forging of bearing ring, prevent the generation of personnel casualty accidents, improve the forging efficiency of bearing ring.
Description
Technical field
The present invention relates to a kind of bearing ring forging line and bearing ring production technologies.
Background technology
Currently, in bearing ring forges process, the operation in the forging technology of bearing ring is all by several forger
Carry out left-hand seat and assistant in narrow place, operating personnel are both exposed to identical hostile environment and the larger senior engineer of security risk
In condition；In large-sized forging workshop, endanger with the different and different of work position；But common feature：The manual labor of high intensity, makes an uproar
Sound, air smog pollution；Workpeople is exposed under high temperature air and heat radiation；But in large-sized forging workshop, close to heating furnace or
The operating point of falling tup machine may be up to 150 DEG C~190 DEG C, easily cause operating personnel's salt deficiency and heat cramps, to workers ' health meeting
There is serious harm.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, a kind of bearing ring forging is provided
Line, it can realize the automatic forging of bearing ring, prevent the generation of personnel casualty accidents, improve the forging effect of bearing ring
Rate.
In order to solve the above technical problems, the technical scheme is that：A kind of bearing ring forging line, it has
Heating station, upset station, punching station, rolling ring station, the first pose adjustment station, the second pose adjustment station and shaping work
Position, it includes：
Heating furnace for forming bar workpiece after being heated to the bearing ferrule blanks on heating station；
The first robot for the bar workpiece after erectting to be moved to upset station；
For carrying out upset upset press machine to the bar workpiece on upset station；
The transfer device of punching station is moved to for the bar workpiece after will be upset on upset station；
Punching press machine for being punched out to the bar workpiece on punching station；
The transfer device is additionally operable to the bar workpiece transfer after punching to the first pose adjustment station；
For carrying out the first pose adjustment that pose adjustment keeps it horizontal to the bar workpiece on the first pose adjustment station
Mechanism；
The second robot for horizontal bar workpiece to be moved to rolling ring station；
Ring rolls for carrying out rolling ring to the bar workpiece on rolling ring station；
Second robot is additionally operable to the bar workpiece after rolling ring on rolling ring station being moved to the second posture tune
Whole station；
For carrying out the second pose adjustment that pose adjustment makes it erect to the bar workpiece on the second pose adjustment station
Mechanism；
Third robot for the bar workpiece of setting to be moved to shaping station；
Shaping press machine for carrying out shaping to the bar workpiece on shaping station；
The third robot is additionally operable to will be on shaping station and bar workpiece that shaping finishes is moved to finished product material frame.
Further, bearing ring forging line further includes overturning material path for housing bar workpiece and for that will overturn
Bar workpiece in material path carries out the switching mechanism that overturning makes it erect.
A kind of concrete structure of transfer device is further provided, the transfer device is defeated including the 4th robot, workpiece
Bar workpiece after sending band component and the 5th robot, the 4th robot will be upset on upset station is moved to workpiece
The head end portion of conveyer belt assembly, the workpiece transfer device component will be delivered to its tail end positioned at the bar workpiece in its head end portion,
5th robot is used to the bar workpiece of the tail end of workpiece transfer device component is moved to punching station and for will
Bar workpiece transfer after punching is to the first pose adjustment station.
Further for the movement for facilitating the second robot, bearing ring forging line further includes parallel track, described
Second robot movable is connected in parallel track.
The present invention also provides a kind of bearing ring production technologies, it applies bearing ring forging line, the step of technique
It is rapid as follows：
S1：Bar workpiece is formed after being heated to the bearing ferrule blanks on heating station by heating furnace；
S2：The bar workpiece after setting is moved to upset station by the first robot；
S3：The bar workpiece on upset station is carried out by upset press machine upset；
S4：By transfer device will be upset on upset station after bar workpiece be moved to punching station；
S5：It is punched out by the punching press machine bar workpiece on the station of hole that liquidates；
S6：By transfer device by the bar workpiece transfer after punching to the first pose adjustment station；
S7：Carrying out pose adjustment by the bar workpiece on first attitude-adjusting system pair the first pose adjustment station makes it
It is horizontal；
S8：Horizontal bar workpiece is moved to rolling ring station by the second robot；
S9：Rolling ring is carried out to the bar workpiece on rolling ring station by ring rolls；
S10：The bar workpiece after rolling ring on rolling ring station is moved to the second pose adjustment by the second robot
Station；
S11：Carrying out pose adjustment by the bar workpiece on second attitude-adjusting system pair the second pose adjustment station makes
It is erect；
S12：The bar workpiece of setting is moved to shaping station by third robot；
S13：Shaping is carried out to the bar workpiece on shaping station by shaping press machine；
S14：The bar workpiece that simultaneously shaping finishes on shaping station is moved to finished product material frame by third robot.
After using above-mentioned technical proposal, bearing ferrule blanks are put into heating furnace by the present invention, by heating furnace to its into
Row heating, it is upset to the progress of bar workpiece by upset press machine, bar workpiece is punched out by punching press machine, is passed through
Ring rolls carries out rolling ring to the bar workpiece on rolling ring station, carries out shaping to bar workpiece by shaping press machine, then adds
Thermal technology position, upset station, punching station, rolling ring station, the first pose adjustment station, the second pose adjustment station and shaping station
Between movement carried out by each robot, to complete to the automatic forging of bearing ring, relative to artificial operation, this
Bearing ring forging line is more advantageous to the integration of product, it is ensured that the quality absolute stability of product, technological level phase
For traditional artificial more systematization, production efficiency is improved, has prevented the generation of personnel casualty accidents.
Description of the drawings
Fig. 1 is the structural schematic diagram of the bearing ring forging line of the present invention.
Specific implementation mode
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
As shown in Figure 1, a kind of bearing ring forging line, it has heating station, upset station 10, punching station
20, rolling ring station 30, the first pose adjustment station, the second pose adjustment station and shaping station 40, it includes：
Heating furnace 1 for forming bar workpiece after being heated to the bearing ferrule blanks on heating station；
The first robot 2 for the bar workpiece after erectting to be moved to upset station 10；
For carrying out upset upset press machine 3 to the bar workpiece on upset station 10；
The transfer device of punching station 20 is moved to for the bar workpiece after will be upset on upset station 3；
Punching press machine 4 for being punched out to the bar workpiece on punching station 20；
The transfer device is additionally operable to the bar workpiece transfer after punching to the first pose adjustment station；
For carrying out the first pose adjustment that pose adjustment keeps it horizontal to the bar workpiece on the first pose adjustment station
Mechanism 5；
The second robot 6 for horizontal bar workpiece to be moved to rolling ring station 30；
Ring rolls 7 for carrying out rolling ring to the bar workpiece on rolling ring station 30；
Second robot 6 is additionally operable to the bar workpiece after rolling ring on rolling ring station 30 being moved to the second posture
Adjust station；
For carrying out the second pose adjustment that pose adjustment makes it erect to the bar workpiece on the second pose adjustment station
Mechanism 8；
Third robot 9 for the bar workpiece of setting to be moved to shaping station 40；
Shaping press machine 11 for carrying out shaping to the bar workpiece on shaping station 40；
The third robot 9 is additionally operable to will be on shaping station 40 and bar workpiece that shaping finishes is moved to finished product material
Frame.
As shown in Figure 1, bearing ring forging line further includes overturning material path for housing bar workpiece and for will
Bar workpiece in overturning material path carries out the switching mechanism 12 that overturning makes it erect；Switching mechanism 12, first in the present embodiment
Attitude-adjusting system 5 and the second attitude-adjusting system 8 all can be common multivariant manipulators.
As shown in Figure 1, the transfer device includes the 4th robot 13, workpiece transfer device component 14 and the 5th robot
15, the 4th robot 13 will be upset on upset station 10 after bar workpiece be moved to workpiece transfer device component 14
Head end portion, the workpiece transfer device component 14 will be delivered to its tail end positioned at the bar workpiece in its head end portion, the described 5th
Robot 15 is used to the bar workpiece of the tail end of workpiece transfer device component 14 is moved to punching station 20 and for that will will rush
Bar workpiece transfer after hole is to the first pose adjustment station.
As shown in Figure 1, bearing ring forging line further includes parallel track 15, second robot 6 is flexibly connected
In parallel track 15；Second robot 6 can move back and forth in parallel track 15, for moving horizontal bar workpiece
It moves to rolling ring station 30 and for the bar workpiece after rolling ring on rolling ring station 30 to be moved to the second pose adjustment station；
The bearing ring production technology, it applies above-mentioned bearing ring forging line, the step of technique as follows：
S1：Bar workpiece is formed after being heated to the bearing ferrule blanks on heating station by heating furnace 1；
S2：The bar workpiece after setting is moved to upset station 10 by the first robot 2；
S3：The bar workpiece on upset station 10 is carried out by upset press machine 3 upset；
S4：By transfer device will be upset on upset station 10 after bar workpiece be moved to punching station 20；
S5：The bar workpiece on punching station 20 is punched out by punching press machine 4；
S6：By transfer device by the bar workpiece transfer after punching to the first pose adjustment station；
S7：Carrying out pose adjustment to the bar workpiece on the first pose adjustment station by the first attitude-adjusting system 5 makes
It is horizontal；
S8：Horizontal bar workpiece is moved to rolling ring station 30 by the second robot 6；
S9：Rolling ring is carried out to the bar workpiece on rolling ring station 30 by ring rolls 7；
S10：The bar workpiece after rolling ring on rolling ring station 30 is moved to the second posture tune by the second robot 6
Whole station；
S11：Carrying out pose adjustment to the bar workpiece on the second pose adjustment station by the second attitude-adjusting system 8 makes
It is erect；
S12：The bar workpiece of setting is moved to shaping station 40 by third robot 9；
S13：Shaping is carried out to the bar workpiece on shaping station 40 by shaping press machine 11；
S14：The bar workpiece that simultaneously shaping finishes on shaping station 40 is moved to finished product material frame by third robot 9.
Working principle of the present invention is as follows：
Bearing ferrule blanks are put into heating furnace 1 by the present invention, are heated to it by heating furnace 1, and upset punching press is passed through
Machine 3 is upset to the progress of bar workpiece, is punched out to bar workpiece by punching press machine 4, by ring rolls 7 to rolling ring work
Bar workpiece on position 30 carries out rolling ring, carries out shaping to bar workpiece by shaping press machine 11, then heating station, upset
Station 10, punching station 20, rolling ring station 30, the first pose adjustment station, the second pose adjustment station and shaping station 40 it
Between movement carried out by each robot, to complete to the automatic forging of bearing ring, relative to artificial operation, this axis
Bearing ring forging line is more advantageous to the integration of product, it is ensured that the quality absolute stability of product, technological level are opposite
In traditional artificial more systematization, production efficiency is improved, has prevented the generation of personnel casualty accidents.
Particular embodiments described above, pair present invention solves the technical problem that, technical solution and advantageous effect carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection domain.
Claims (5)
1. a kind of bearing ring forging line, which is characterized in that it has heating station, upset station (10), punching station
(20), rolling ring station (30), the first pose adjustment station, the second pose adjustment station and shaping station (40), it includes：
Heating furnace (1) for forming bar workpiece after being heated to the bearing ferrule blanks on heating station；
The first robot (2) for the bar workpiece after erectting to be moved to upset station (10)；
For carrying out upset upset press machine (3) to the bar workpiece on upset station (10)；
The transfer device of punching station (20) is moved to for the bar workpiece after will be upset on upset station (3)；
Punching press machine (4) for being punched out to the bar workpiece on punching station (20)；
The transfer device is additionally operable to the bar workpiece transfer after punching to the first pose adjustment station；
For carrying out the first attitude-adjusting system that pose adjustment keeps it horizontal to the bar workpiece on the first pose adjustment station
(5)；
The second robot (6) for horizontal bar workpiece to be moved to rolling ring station (30)；
Ring rolls (7) for carrying out rolling ring to the bar workpiece on rolling ring station (30)；
Second robot (6) is additionally operable to the bar workpiece after rolling ring on rolling ring station (30) being moved to the second posture
Adjust station；
For carrying out the second attitude-adjusting system that pose adjustment makes it erect to the bar workpiece on the second pose adjustment station
(8)；
Third robot (9) for the bar workpiece of setting to be moved to shaping station (40)；
Shaping press machine (11) for carrying out shaping to the bar workpiece on shaping station (40)；
The third robot (9) is additionally operable to will be on shaping station (40) and bar workpiece that shaping finishes is moved to finished product material
Frame.
2. bearing ring forging line according to claim 1, it is characterised in that：Further include for housing bar workpiece
Overturning material path and for will overturn material path in bar workpiece carry out overturning make its erect switching mechanism (12).
3. bearing ring forging line according to claim 1, it is characterised in that：The transfer device includes the 4th machine
Device people (13), workpiece transfer device component (14) and the 5th robot (15), the 4th robot (13) is by upset station (10)
It is upper it is upset after bar workpiece be moved to the head end portion of workpiece transfer device component (14), the workpiece transfer device component (14)
It will be delivered to its tail end positioned at the bar workpiece in its head end portion, the 5th robot (15) is used for workpiece transfer device component
(14) the bar workpiece of tail end is moved to punching station (20) and for will be by the bar workpiece transfer after punching extremely
First pose adjustment station.
4. bearing ring forging line according to claim 1, it is characterised in that：Further include parallel track (15), institute
The second robot (6) is stated to be movably connected on parallel track (15).
5. a kind of bearing ring production technology, it is characterised in that：It applies bearing according to any one of claims 1 to 4
The step of lasso forging line, technique, is as follows：
S1：Bar workpiece is formed after being heated to the bearing ferrule blanks on heating station by heating furnace (1)；
S2：The bar workpiece after setting is moved to upset station (10) by the first robot (2)；
S3：The bar workpiece on upset station (10) is carried out by upset press machine (3) upset；
S4：By transfer device will be upset on upset station (10) after bar workpiece be moved to punching station (20)；
S5：The bar workpiece on punching station (20) is punched out by punching press machine (4)；
S6：By transfer device by the bar workpiece transfer after punching to the first pose adjustment station；
S7：Carrying out pose adjustment to the bar workpiece on the first pose adjustment station by the first attitude-adjusting system (5) makes it
It is horizontal；
S8：Horizontal bar workpiece is moved to rolling ring station (30) by the second robot (6)；
S9：Rolling ring is carried out to the bar workpiece on rolling ring station (30) by ring rolls (7)；
S10：The bar workpiece after rolling ring on rolling ring station (30) is moved to the second posture tune by the second robot (6)
Whole station；
S11：Carrying out pose adjustment to the bar workpiece on the second pose adjustment station by the second attitude-adjusting system (8) makes it
It erects；
S12：The bar workpiece of setting is moved to shaping station (40) by third robot (9)；
S13：Shaping is carried out to the bar workpiece on shaping station (40) by shaping press machine (11)；
S14：The bar workpiece that simultaneously shaping finishes on shaping station (40) is moved to finished product material frame by third robot (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162887.2A CN108273951A (en) | 2018-02-26 | 2018-02-26 | Bearing ring forging line and bearing ring production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162887.2A CN108273951A (en) | 2018-02-26 | 2018-02-26 | Bearing ring forging line and bearing ring production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108273951A true CN108273951A (en) | 2018-07-13 |
Family
ID=62808734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810162887.2A Pending CN108273951A (en) | 2018-02-26 | 2018-02-26 | Bearing ring forging line and bearing ring production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108273951A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102696A (en) * | 2019-04-30 | 2019-08-09 | 大连海泰轴承制造有限公司 | A kind of bearing ring forging process temperature control method |
| CN111069505A (en) * | 2019-12-29 | 2020-04-28 | 江苏金源高端装备股份有限公司 | Automatic forging process for bearing ring |
| CN112743019A (en) * | 2020-12-29 | 2021-05-04 | 浙江中集铸锻有限公司 | Hub bearing inner ring forging production line |
| WO2021170550A1 (en) * | 2020-02-25 | 2021-09-02 | Sms Group Gmbh | Ring rolling machine having device for ring manipulation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5577323A (en) * | 1992-12-08 | 1996-11-26 | Nsk Ltd. | Method of manufactoring a race ring for a rolling bearing |
| CN102825435A (en) * | 2012-09-25 | 2012-12-19 | 安徽马钢工程技术有限公司 | Ring piece machining system and method as well as ring piece moving-out device |
| CN203526883U (en) * | 2013-10-29 | 2014-04-09 | 临清市中航精工轴承有限公司 | Full automatic bearing ring forging production line |
| CN104117855A (en) * | 2014-07-07 | 2014-10-29 | 北京京诚之星科技开发有限公司 | Full-automatic continuous production line for annular forgings |
| CN104786021A (en) * | 2015-04-09 | 2015-07-22 | 无锡易通精密机械股份有限公司 | Bearing ring forging technology |
| CN106270354A (en) * | 2016-08-12 | 2017-01-04 | 上海电机学院 | A kind of processing method of bearing ring net-size forging |
| CN208033536U (en) * | 2018-02-26 | 2018-11-02 | 常州市支点机器人科技有限公司 | Bearing ring forging line |
-
2018
- 2018-02-26 CN CN201810162887.2A patent/CN108273951A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5577323A (en) * | 1992-12-08 | 1996-11-26 | Nsk Ltd. | Method of manufactoring a race ring for a rolling bearing |
| CN102825435A (en) * | 2012-09-25 | 2012-12-19 | 安徽马钢工程技术有限公司 | Ring piece machining system and method as well as ring piece moving-out device |
| CN203526883U (en) * | 2013-10-29 | 2014-04-09 | 临清市中航精工轴承有限公司 | Full automatic bearing ring forging production line |
| CN104117855A (en) * | 2014-07-07 | 2014-10-29 | 北京京诚之星科技开发有限公司 | Full-automatic continuous production line for annular forgings |
| CN104786021A (en) * | 2015-04-09 | 2015-07-22 | 无锡易通精密机械股份有限公司 | Bearing ring forging technology |
| CN106270354A (en) * | 2016-08-12 | 2017-01-04 | 上海电机学院 | A kind of processing method of bearing ring net-size forging |
| WO2018028168A1 (en) * | 2016-08-12 | 2018-02-15 | 上海电机学院 | Method for processing precision forging of bearing ring |
| CN208033536U (en) * | 2018-02-26 | 2018-11-02 | 常州市支点机器人科技有限公司 | Bearing ring forging line |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102696A (en) * | 2019-04-30 | 2019-08-09 | 大连海泰轴承制造有限公司 | A kind of bearing ring forging process temperature control method |
| CN111069505A (en) * | 2019-12-29 | 2020-04-28 | 江苏金源高端装备股份有限公司 | Automatic forging process for bearing ring |
| WO2021170550A1 (en) * | 2020-02-25 | 2021-09-02 | Sms Group Gmbh | Ring rolling machine having device for ring manipulation |
| CN115151355A (en) * | 2020-02-25 | 2022-10-04 | Sms集团有限公司 | Ring rolling mill with a device for handling rings |
| CN112743019A (en) * | 2020-12-29 | 2021-05-04 | 浙江中集铸锻有限公司 | Hub bearing inner ring forging production line |
| CN112743019B (en) * | 2020-12-29 | 2023-02-14 | 浙江中集铸锻有限公司 | Hub bearing inner ring forging production line |
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