CN207695543U - A kind of railway bearing housing forging profiling rolling mold - Google Patents
A kind of railway bearing housing forging profiling rolling mold Download PDFInfo
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- CN207695543U CN207695543U CN201721683600.8U CN201721683600U CN207695543U CN 207695543 U CN207695543 U CN 207695543U CN 201721683600 U CN201721683600 U CN 201721683600U CN 207695543 U CN207695543 U CN 207695543U
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- lasso
- mould
- calendering roller
- rolling
- milling wheel
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Railway bearing housing forging profiling rolling mold disclosed by the utility model, including calendering roller and roll milling wheel, the calendering roller is mainly by holder（1）, lasso rolling mould（2）, transition cylindrical surface（3）And connecting pin（4）It constitutes, the roll milling wheel is by upper piece（5）, bottom sheet（6）It constitutes, the lasso of the calendering roller rolls mould（2）Both ends are asymmetric, and angle beta is less than the contact angle of lasso, lasso rolling mould after lasso rolls mould（2）Transition cylindrical surface (3) size of rear end is identical as the diameter of angle beta after rolling mould；The transition cylindrical surface of the rib and the calendering roller of the roll milling wheel bottom sheet (6)（3）Coordinate for contact.The utility model rolls the structure of mould by changing calendering roller lasso, reduces the burr generated by metal plastic deformation unevenness, reaches the subsequent machining technology for reducing end face Fold, reducing forging, improves the purpose that dressing accuracy requires, reduces rejection rate.
Description
Technical field
The utility model belongs to railway bearing housing rolling technical field of mold, is primarily related to outside a kind of railway bearing
Cover forging profiling rolling mold.
Background technology
The existing bearing outside characterized by the high barrel structure of thin-walled, during rolling is forged in profiling, burr easily occurs for housing
Fold defect causes potential risk for rear process relativity.The reason of causing burr to fold be in profiling forging process, by
Caused by gap at the Embedded calendering roller of mold and the contact point of roll milling wheel bottom end.And burr folds spreading and enters forging surface
There is certain depth afterwards, in vehicle, mill processing tiny folding can not visually observe out, need through magnetic powder inspection, due to
Burr pushed position is indefinite when forging rolling, and missed detection risk is brought to magnetic powder inspection.
Utility model content
In order to solve the problems, such as that background technology, the utility model provide a kind of railway bearing housing forging profiling rolling
Expand mold, reduce the burr generated by metal plastic deformation unevenness, reaches reduction end face Fold, the follow-up of reduction forging adds
Work technique improves dressing accuracy requirement, reduces the purpose of rejection rate.
The utility model to achieve the above object, adopts the following technical scheme that realize：A kind of railway bearing housing forging
Profiling rolling mold, including calendering roller and roll milling wheel, for the calendering roller mainly by holder, lasso rolls mould, transition cylindrical surface and company
End is connect to constitute, the roll milling wheel by upper piece, bottom sheet constitute, the lasso of calendering roller rolling mould both ends are asymmetric, and lasso rolls mould
Angle beta is less than the contact angle of lasso afterwards, and the transition cylindrical surface size that lasso rolls mould rear end is identical as the diameter of angle beta after rolling mould；It is described
The rib of roll milling wheel bottom sheet and the transition cylindrical surface of the calendering roller coordinate for contact.
Further, angle beta has -0.5 ° ~ -2 ° of angle compensation after the lasso rolling mould of the calendering roller.
Further, the bottom sheet rib height of the roll milling wheel is higher than upper piece rib height.
The utility model is compared with original mold：Certain angle compensation is carried out to angle beta after rolling mould（Compensate the number of degrees be-
0.5°~ -2°）, prevent calendering roller one end to be rigidly connected, bracket end caused by unbalance stress caused by the non-rigid connection in one end
Warpage is sunk.The cooperation of calendering roller and roll milling wheel is changed to contact by embedded, and metal plastic deformation more flows during rolling
Freely, steadily, the burr generated by metal plastic deformation unevenness is reduced；Roll milling wheel structural shape is combined by original three pieces and is modified to
Two panels combination, after the one section of period raceway of working is wide by mill, finishing is also easy to realize required precision；Calendering roller and roll milling wheel
Fit system be contact cooperation, reduce the subsequent machining technology of forging, reduce rejection rate.
Description of the drawings
Fig. 1 is the utility model contact calendering roller schematic diagram.
Fig. 2 is the utility model contact roll milling wheel schematic diagram.
Fig. 3 is the utility model calendering roller and roll milling wheel contact cooperation schematic diagram.
In figure：1, holder, 2, lasso roll mould, 3, transition cylindrical surface, 4, connecting pin, 5, upper piece, 6, bottom sheet, 7, bolt.
Specific implementation mode
The utility model is illustrated in conjunction with attached drawing.
Railway bearing housing forging profiling rolling mold includes calendering roller and roll milling wheel described in the present embodiment.
As shown in Figure 1：The spreading roll structure includes holder 1, lasso rolling mould 2, transition cylindrical surface 3, connecting pin 4, institute
2 both ends of lasso rolling mould for stating calendering roller are asymmetric, and angle beta is slightly smaller than the contact angle of lasso after lasso rolling mould 2.By theoretical calculation and
A large number of experiments, angle beta gives certain angle compensation after rolling mould to lasso, and the compensation number of degrees are -0.5 ° ~ -2 °, such profiling rolling
Blank dimension cooperation afterwards is more reasonable, accelerates rolling shaping speed.Meanwhile by the transition cylindrical surface diameter dimension of milling roller
It is changed to consistent with the diameter dimension of angle beta after rolling mould, i.e., lasso rolling mould 2 rear end is identical as the diameter on transition cylindrical surface 3, makes to be contoured to
Metal plastic deformation is more smooth, steady in type, reduces the burr generated by metal plastic deformation unevenness.
As shown in Figure 2：The roll milling wheel include upper piece 5, bottom sheet 6 and bolt 7, it is described upper piece 5, bottom sheet 6 pass through bolt 7
It tightens together, 6 rib height of bottom sheet is higher than upper piece 5 rib height, and this knockdown structure, work one section of period raceway quilt
After mill is wide, finishing is also easy to realize required precision.6 rib of bottom sheet coordinates with transition cylindrical surface 3 for contact.Make rolling in this way
Metal plastic deformation is more smooth, steady in the process, reduces the burr generated by metal plastic deformation unevenness；The rib of bottom sheet 6
It is stuck in the front end step of lasso rolling mould 2, plays the role of fixed housing.
As shown in Figure 3：The fit system of the milling roller and rolling wheel coordinates for contact, after thereby reducing forging
Continuous processing technology, reduces rejection rate.
Claims (3)
1. a kind of railway bearing housing forging profiling rolling mold, including calendering roller and roll milling wheel, the calendering roller is mainly by propping up
Frame（1）, lasso rolling mould（2）, transition cylindrical surface（3）And connecting pin（4）It constitutes, the roll milling wheel is by upper piece（5）, bottom sheet（6）Structure
At, it is characterised in that：The lasso of the calendering roller rolls mould（2）Both ends are asymmetric, and angle beta is less than the contact of lasso after lasso rolling mould
Angle, lasso roll mould（2）Transition cylindrical surface (3) size of rear end is identical as the diameter of angle beta after rolling mould；The roll milling wheel bottom sheet (6)
Rib and the calendering roller transition cylindrical surface（3）Coordinate for contact.
2. railway bearing housing forging profiling rolling mold according to claim 1, it is characterised in that：The calendering roller
Lasso rolls mould（2）Angle beta has -0.5 ° ~ -2 ° of angle compensation afterwards.
3. railway bearing housing forging profiling rolling mold according to claim 1, it is characterised in that：The roll milling wheel
Bottom sheet (6) rib height is higher than upper piece (5) rib height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683600.8U CN207695543U (en) | 2017-12-07 | 2017-12-07 | A kind of railway bearing housing forging profiling rolling mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683600.8U CN207695543U (en) | 2017-12-07 | 2017-12-07 | A kind of railway bearing housing forging profiling rolling mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207695543U true CN207695543U (en) | 2018-08-07 |
Family
ID=63024992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721683600.8U Active CN207695543U (en) | 2017-12-07 | 2017-12-07 | A kind of railway bearing housing forging profiling rolling mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207695543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226613A (en) * | 2018-10-15 | 2019-01-18 | 无锡市东日昌轴承制造有限公司 | The milling method for preventing bearing collar path from folding |
-
2017
- 2017-12-07 CN CN201721683600.8U patent/CN207695543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226613A (en) * | 2018-10-15 | 2019-01-18 | 无锡市东日昌轴承制造有限公司 | The milling method for preventing bearing collar path from folding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190611 Address after: 471039 No. 96 Jianxi District Construction Road, Luoyang City, Henan Province Co-patentee after: Luoyang Bearing Group Railway Bearing Co.,Ltd. Patentee after: LUOYANG LYC BEARING Co.,Ltd. Address before: 471039 No. 96 Jianxi District Construction Road, Luoyang City, Henan Province Patentee before: LUOYANG LYC BEARING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Patentee after: Luoyang Bearing Group Railway Bearing Co.,Ltd. Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China Patentee before: Luoyang Bearing Group Railway Bearing Co.,Ltd. |
|
| CP03 | Change of name, title or address |