CN204842595U - Preventing in derotation technology changes device - Google Patents
Preventing in derotation technology changes device Download PDFInfo
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- CN204842595U CN204842595U CN201520551833.7U CN201520551833U CN204842595U CN 204842595 U CN204842595 U CN 204842595U CN 201520551833 U CN201520551833 U CN 201520551833U CN 204842595 U CN204842595 U CN 204842595U
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- work piece
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- derotation
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- material returned
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Abstract
The utility model discloses a preventing in derotation technology changes device belongs to spinning manufacturing equipment field, including mandrel and material returned ring, its characterized in that: still include dog A and dog B, the dog A fix on the flange of mandrel, the dog B fix keeping away from on the material returned ring dog A's one end, the utility model discloses can effectively prevent the slip of work piece and mandrel circumferencial direction to effectively improving the qualification rate of work piece, can guaranteeing that derotation in -process work piece circumferencial direction is spacing reliable, can not lead to the change of moment of torsion because of work piece technological parameter's adjustment, cause the work piece and scrap, the work piece has left out the processing of male cone (strobilus masculinus), only need the work piece facing cut go out the rectangle breach can, improved the machining efficiency and the qualification rate of work piece.
Description
Technical field
The utility model relates to the equipment in a kind of spinning process, particularly relates to the anti-rotation device in a kind of derotation technique.
Background technology
In shear spinning, derotation technique is applicable to a kind of pressure processing method of shaping thin-wall tubular revolving body workpieces, it is that mandrel drives workpiece rotary motion, the process that spinning roller is exerted pressure to workpiece local, progressively advanced continuously along helical trajectory by workpiece and spinning roller relative motion, material flow direction is contrary with the spinning direction of motion, the manufacturing process of the whole thin-wall tubular workpiece of accumulation forming.
In derotation process, workpiece end face and material returned anchor ring are fitted, spinning roller contact workpiece produces plastic deformation, during spinning roller contact workpiece, workpiece deformation point is by radial compressive stress Fz, hoop pressure stress Fy, the three-dimensional compressive stress state of axial compression stress Fx, and hoop pressure stress Fy produces the torque T contrary with workpiece direction of rotation, torque T is along workpiece block transitive to be deformed to on the material returned ring of absorption surface, there is torque T in the contact surface of material returned ring and workpiece, therefore, frictional force in spinning process between workpiece and discharging device is enough large could produce enough moments of torsion, workpiece and mandrel is made not to produce the sliding phenomenon of circumferencial direction.If anti-rotation device design is unreasonable in spinning, easily produces workpiece along the circumferential direction, cause workpiece to be scrapped, as shown in Figure 1.
Tradition shear spinning equipment anti-rotation device has the structures such as inner conical surface with zigzag material returned ring or material returned endless belt usually.When adopting zigzag material returned ring anti-rotation device, under duty, material returned ring end face and workpiece end face are Multi-contacts, when reduction and feed ratio increase, moment of torsion needed for workpiece also can increase, material returned ring and workpiece can not produce enough moments of torsion, the friction of material returned ring and workpiece is converted to dynamic friction by static friction, and workpiece easily produces the slip with mandrel circumferencial direction in spinning process, causes flow formed part to be scrapped.When material returned ring adopts inner conical surface, moment of torsion needed for workpiece can transmit required torque by the binding face of material returned ring inner conical surface and workpiece male cone (strobilus masculinus), but the male cone (strobilus masculinus) of material returned ring inner conical surface and workpiece extremely difficulty accomplishes that angle is consistent, the conical surface of material returned ring and workpiece is caused to be the contact in line and face, the moment of torsion that this cooperation is supplied to workpiece is stable not, the slip of easy generation workpiece and mandrel circumferencial direction, causes flow formed part to be scrapped.Therefore, the sliding problem effectively solving workpiece and core is most important.
Summary of the invention
The purpose of this utility model is just to provide the anti-rotation device in a kind of derotation technique, to solve the sliding problem of above-mentioned workpiece and core.
To achieve these goals, the technical solution adopted in the utility model is such: the anti-rotation device in a kind of derotation technique, comprise core and material returned ring, also comprise block A and block B, described block A is fixed on the flange of described core, and described block B is fixed on the one end away from described block A on described material returned ring.
Above-mentioned technical scheme, block A is spacing to material returned ring circumferencial direction, and block B is spacing to workpiece circumferencial direction, provides the torque T of workpiece circumferencial direction, such workpiece is in rotary pressure process parameter debug process or criticize the slip that can not produce circumferencial direction in production, ensures that workpiece spinning is shaped smoothly; Be particularly useful for the reliable location of thin-wall tubular piece revolving body workpieces in enormous quantities.
As preferred technical scheme: described block A adopts screw and alignment pin to be fixed.This mode is more firm more reliable.
As preferred technical scheme: described block B adopts welding to be fixed.This mode is more firm more reliable.
Compared with prior art, the utility model has the advantage of:
1) traditional anti-rotation device criticizes the slip easily causing workpiece and core circumferencial direction in production, and the utility model effectively can prevent the slip of workpiece and core circumferencial direction, thus effectively improves the qualification rate of workpiece;
2) Novel anti-rotation device of the present utility model can ensure that in derotation process, workpiece circumferencial direction is reliably spacing, can not cause the change of moment of torsion, cause scrap workpiece because of the adjustment of workpiece technological parameter;
3) conventional workpiece and material returned ring adopt cone match, each workpiece needs to process male cone (strobilus masculinus), not only turner needs to add a procedure separately, and the male cone (strobilus masculinus) being difficult to ensure work pieces process is that face contacts with the inner conical surface of material returned ring, and in anti-rotation device of the present utility model, workpiece eliminates the processing of male cone (strobilus masculinus), only need mill out rectangular indentation at workpiece end face, improves working (machining) efficiency and the qualification rate of workpiece.
Accompanying drawing explanation
Fig. 1 is the spinning mechanics schematic diagram of derotation technique;
Fig. 2 is the anti-rotation device structural representation of the utility model embodiment.
In figure: 1, workpiece; 2, spinning roller; 3, core; 4, material returned ring; 5, block A; 6, block B.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment:
See Fig. 2, an anti-rotation device in derotation technique, comprises core 3 and material returned ring 4, also comprises block A5 and block B6, block A5 adopts screw and alignment pin to be fixed on the flange of described core 3, and block B6 is weldingly fixed on the one end away from block A5 on material returned ring 4;
During use, workpiece 1 is by mandrel brought into motion, when spinning roller 2 contacts with workpiece 1, workpiece is subject to the obstruction of spinning roller 2 and produces distortion, workpiece 1 will bear the pressure stress F y of a circumferencial direction, and the torsional moment T due to a circumferencial direction will bear in district to be deformed, and the circumferencial direction of block B6 to workpiece 1 is spacing, there is provided the torque T of workpiece 1 circumferencial direction, block B6 and material returned ring 4 adopt welding manner to link together; Spacing by the circumferencial direction of block A5 to material returned ring 4, provide material returned ring 4 required torque, such workpiece 1 is in rotary pressure process parameter adjustment or criticize the slip that can not produce circumferencial direction in production, ensures that workpiece spinning is shaped smoothly.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. the anti-rotation device in derotation technique, comprises core and material returned ring, it is characterized in that: also comprise block A and block B, and described block A is fixed on the flange of described core, and described block B is fixed on the one end away from described block A on described material returned ring.
2. the anti-rotation device in derotation technique according to claim 1, is characterized in that: described block A adopts screw and alignment pin to be fixed.
3. the anti-rotation device in derotation technique according to claim 1, is characterized in that: described block B adopts welding to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551833.7U CN204842595U (en) | 2015-07-28 | 2015-07-28 | Preventing in derotation technology changes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551833.7U CN204842595U (en) | 2015-07-28 | 2015-07-28 | Preventing in derotation technology changes device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204842595U true CN204842595U (en) | 2015-12-09 |
Family
ID=54733192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520551833.7U Expired - Fee Related CN204842595U (en) | 2015-07-28 | 2015-07-28 | Preventing in derotation technology changes device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204842595U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201834A (en) * | 2018-09-04 | 2019-01-15 | 西安交通大学 | A kind of combined shaping method of flow forming and double roller clamping spinning |
| CN113118285A (en) * | 2021-04-08 | 2021-07-16 | 内蒙古航天红岗机械有限公司 | Engine housing derotation blank positioning tool |
-
2015
- 2015-07-28 CN CN201520551833.7U patent/CN204842595U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201834A (en) * | 2018-09-04 | 2019-01-15 | 西安交通大学 | A kind of combined shaping method of flow forming and double roller clamping spinning |
| CN113118285A (en) * | 2021-04-08 | 2021-07-16 | 内蒙古航天红岗机械有限公司 | Engine housing derotation blank positioning tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 610199 Sichuan Chengdu economic and Technological Development Zone (Longquanyi District) 189 Patentee after: Sichuan spaceflight Long March Equipment Manufacturing Co., Ltd. Address before: 610199 No. 189, road, Longquan Town, Longquanyi District, Sichuan. Patentee before: Changzheng Machinery Factory, China Astronautics Science and Technology Group Co |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190728 |