CN203900249U - Spinning necking die - Google Patents
Spinning necking die Download PDFInfo
- Publication number
- CN203900249U CN203900249U CN201420295433.XU CN201420295433U CN203900249U CN 203900249 U CN203900249 U CN 203900249U CN 201420295433 U CN201420295433 U CN 201420295433U CN 203900249 U CN203900249 U CN 203900249U
- Authority
- CN
- China
- Prior art keywords
- ball bearing
- spinning
- die
- spinning roller
- deep groove
- 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.)
- Expired - Fee Related
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses a spinning necking die. The spinning necking die comprises a thrust ball bearing, a backing plate, a deep groove ball bearing, a spinning roller and a spinning roller stand. The spinning roller stand comprises a left fixing plate, a right fixing plate and a fixing column. The backing plate is arranged between the thrust ball bearing and the spinning roller. The deep groove ball bearing is in interference fit with the spinning roller and the fixing column. A left shaft washer of the thrust ball bearing is in interference fit with the fixing column. When a workpiece needs to be pushed in, the spinning roller, the deep groove ball bearing, the backing plate and a right shaft washer of the thrust ball bearing rotate together. The spinning necking die is simple in structure and ingenious in design; through the change of the structure of a traditional machining die, the main friction between the die and the workpiece is changed into rolling friction from sliding friction, so that the friction force is reduced, the abrasion of the die is reduced, and pull damage to the surface of the workpiece is avoided. The working portion of the die is shortened, so that the probability that taper is formed is effectively reduced, and the service life of the die is prolonged.
Description
Technical field
The utility model relates to a kind of mould for the tubular member that is shaped, and is specifically related to a kind of spinning necking die.
Background technology
At present, the domestic reducing for tubular member, is mainly that the openend of blank is inserted in the die identical with workpiece shape, and ecto-entad applies radial pressure, makes its oral area produce compression, thereby obtains needed reducing workpiece.While being shaped in this way, material deformation district is mainly subject to the effect of tangential and axial compression stress, and diameter of work reduces and wall thickness and length increase.When if circumferential compressive force is excessive, easily cause that the unstability of deformed area is also wrinkling.Because whole reducing pressure is born in force transmission region, if axial compressive force is excessive, also can cause buckling deformation simultaneously.
In addition, this mold cavity working portion length must be more than or equal to the length of reducing part, friction between workpiece and mould is mainly sliding friction, frictional force is larger, surface of the work is pulled phenomenon, fast rise along with heat, the wearing and tearing of mold cavity are also in speedup, and the wearing and tearing of mold cavity working portion become to increase progressively trend from left to right, workpiece has certain tapering after reducing, and workpiece quality cannot be guaranteed, and this die life is shorter, need often to change, be difficult to meet the requirement of producing in enormous quantities.
Utility model content
For addressing the above problem, the utility model has designed a kind of new spinning necking die, and its object is: change existing processing mode, the sliding friction that workpiece is added between man-hour and mould becomes rolling friction, improves the quality of workpiece, extends die life.
Technical solution of the present utility model:
A kind of spinning necking die, it is characterized in that: described spinning necking die comprises thrust ball bearing, backing plate, deep groove ball bearing, spinning roller and spinning roller frame, described spinning roller frame comprises left fixed head, right fixed head and fixed leg, described backing plate is arranged between thrust ball bearing and spinning roller, deep groove ball bearing and spinning roller are interference fit, deep groove ball bearing and fixed leg are interference fit, and the blowout patche on the thrust ball bearing left side and fixed leg are interference fit.When workpiece pushes, the blowout patche on spinning roller, deep groove ball bearing, backing plate, thrust bearing the right rotates together.
Described fixed leg is three, uniform on left and right fixed head, and two ends and left and right fixed head are interference fit.
The quantity of described spinning roller, thrust ball bearing, deep groove ball bearing, backing plate is all three.
The beneficial effects of the utility model:
The utility model is simple in structure, design ingenious, by the change to traditional processing mold structure, make the main friction of mould and workpiece transfer rolling friction to by sliding friction, frictional force reduces, and die wear reduces, surface of the work is without pulling phenomenon, working portion of die contraction in length, has effectively reduced the possibility that tapering produces, and has extended the service life of mould.
Accompanying drawing explanation
Fig. 1 is general necking die schematic diagram.
Fig. 2 is the utility model front view cross-sectional view.
Fig. 3 is the utility model right view cross-sectional view.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 2, a kind of spinning necking die, comprises thrust ball bearing 2, backing plate 3, deep groove ball bearing 4, spinning roller 5 and spinning roller frame, spinning roller frame comprises left fixed head 1, right fixed head 6 and fixed leg 7, fixed leg 7 is three, on a left side, uniform on right fixed head, two ends are with left, right fixed head 1, 6 adopt interference fit, and spinning roller 5 is groundwork part, and material is carbide alloy, spinning roller 5, thrust ball bearing 2, deep groove ball bearing 4, backing plate 3 is all three, has a spinning roller 5 on every fixed leg 7, a deep groove ball bearing 4, a backing plate 3 and a thrust ball bearing 2, wherein spinning roller 5 and deep groove ball bearing 4 adopt interference fit, deep groove ball bearing 4 adopts interference fit with fixed leg 7 again, thrust ball bearing 2 left side blowout patches and fixed leg 7 adopt interference fit, between thrust ball bearing 2 and spinning roller 5, with backing plate 3, separate while preventing that thrust ball bearing 2 and deep groove ball bearing 4 from rotating and interfere, spinning roller 5 just can still can rotate when bearing radial pressure and axial compressive force like this.
Specific works process:
Spinning necking die clamping also can be rotated with chuck on lathe chuck, workpiece 8 use fixtures are arranged on knife rest, in the time of work, spinning necking die is with chuck forward, the horizontal self-acting feed system of lathe is sent into mould by workpiece 8 from right fixed head end 6, when workpiece 8 contact spinning rollers continuation propelling, spinning roller 5 rotates with deep groove ball bearing 4 and thrust ball bearing 2, at the surperficial rolling extrusion of workpiece 8, extruded length is controlled by spacing, acquisition meets the product of figure paper size, if during processing products of different specifications, only need to change spinning roller diameter and deep groove ball bearing specification.
To sum up, the utility model produces a desired effect.
Claims (3)
1. a spinning necking die, it is characterized in that: described spinning necking die comprises thrust ball bearing, backing plate, deep groove ball bearing, spinning roller and spinning roller frame, described spinning roller frame comprises left fixed head, right fixed head and fixed leg, described backing plate is arranged between thrust ball bearing and spinning roller, deep groove ball bearing and spinning roller are interference fit, deep groove ball bearing and fixed leg are interference fit, and the blowout patche on the thrust ball bearing left side and fixed leg are interference fit.
2. a kind of spinning necking die as claimed in claim 1, is characterized in that: described fixed leg is three, uniform on left and right fixed head, and two ends and left and right fixed head are interference fit.
3. a kind of spinning necking die as claimed in claim 1, is characterized in that: the quantity of described spinning roller, thrust ball bearing, deep groove ball bearing, backing plate is all three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295433.XU CN203900249U (en) | 2014-06-05 | 2014-06-05 | Spinning necking die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295433.XU CN203900249U (en) | 2014-06-05 | 2014-06-05 | Spinning necking die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203900249U true CN203900249U (en) | 2014-10-29 |
Family
ID=51774540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420295433.XU Expired - Fee Related CN203900249U (en) | 2014-06-05 | 2014-06-05 | Spinning necking die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203900249U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818362A (en) * | 2016-06-02 | 2016-08-03 | 昆山科森科技股份有限公司 | Necked-down jig |
| CN109676043A (en) * | 2019-02-25 | 2019-04-26 | 廊坊中德汽车座椅制造有限公司 | Necking device of headrest rod of automobile seat |
| CN109794537A (en) * | 2019-01-11 | 2019-05-24 | 南京航空航天大学 | Three spinning roller spinning clamps and its operation process suitable for small plunger diameter component |
-
2014
- 2014-06-05 CN CN201420295433.XU patent/CN203900249U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818362A (en) * | 2016-06-02 | 2016-08-03 | 昆山科森科技股份有限公司 | Necked-down jig |
| CN105818362B (en) * | 2016-06-02 | 2018-05-29 | 昆山科森科技股份有限公司 | A kind of necking down gauge |
| CN109794537A (en) * | 2019-01-11 | 2019-05-24 | 南京航空航天大学 | Three spinning roller spinning clamps and its operation process suitable for small plunger diameter component |
| CN109794537B (en) * | 2019-01-11 | 2021-04-02 | 南京航空航天大学 | Three-spinning-wheel spinning clamp suitable for small-diameter plunger assembly and operation process thereof |
| CN109676043A (en) * | 2019-02-25 | 2019-04-26 | 廊坊中德汽车座椅制造有限公司 | Necking device of headrest rod of automobile seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150605 |
|
| EXPY | Termination of patent right or utility model |