CN203599452U - Swivel bolt forming die - Google Patents
Swivel bolt forming die Download PDFInfo
- Publication number
- CN203599452U CN203599452U CN201320621862.7U CN201320621862U CN203599452U CN 203599452 U CN203599452 U CN 203599452U CN 201320621862 U CN201320621862 U CN 201320621862U CN 203599452 U CN203599452 U CN 203599452U
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- radius
- circular arc
- die cavity
- cavity
- forming die
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- Expired - Fee Related
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Abstract
A swivel bolt forming die comprises an upper forming die body and a lower forming die body. One end of a cavity of the lower forming die body is provided with a cylindrical cavity, the other end of the cavity of the lower forming die body is provided with an annular cavity, and the cylindrical cavity is connected with the annular cavity through a transition cavity. The cylinder diameter of the cylindrical cavity is Da, the cylinder length of the cylindrical cavity is La, the annular cavity is provided with an arc with the radius of Rb, and the center point of the arc is provided with a circular truncated cone with the diameter of Db. The transition cavity is connected with the cylindrical cavity through an arc with the radius of Ra and the arc with the radius of Rb. The bottom of the annular cavity is provided with an arc with the radius of Rc. The bottom of the cylindrical cavity is provided with an arc with the diameter of Da/2. The swivel bolt forming die is reasonable in structure, a forged swivel bolt product completely meets the requirements of shape and size, and the swivel bolt forming die is used for machining of marine mooring chain accessories.
Description
Technical field
The utility model relates to the processing mold of marine mooring chain annex, relates in particular to a kind of mould of change ring bolt.
Background technology
For the mooring cable annex change on deep sea drilling platform, should there is the technical characterictic of high strength, obdurability.When use, change two connects the mooring cable chain link of dimension.Due to change ring stud structure complexity, therefore need separately two to be forged, what match with it is the mould of specially designed change ring bolt.
Utility model content
The purpose of this utility model is exactly the mould that a kind of change ring bolt will be provided, and guarantees that the change ring bolt product forging meets shape and size demand.
The utility model is achieved in that a kind of mould of change ring bolt, comprise shaping upper and moulding counterdie, it is characterized in that: die cavity one end of described moulding counterdie is provided with cylindrical die cavity, the other end is provided with annular die cavity, and described cylindrical die cavity is connected by transition die cavity with annular die cavity; It is that Da, cylinder length are La that described cylindrical die cavity arranges body diameter, and described annular die cavity arranges the circular arc that radius is Rb, is provided with the round platform that diameter is Db on the central point of circular arc; Circular arc and cylindrical die cavity that the circular arc that described transition die cavity is Ra by radius is Rb with radius are connected; Described annular cavity bottom is provided with the circular arc that radius is Rc; Described cylindrical cavity bottom is provided with the circular arc that radius is Da/2; The circular arc that the circular arc that described transition cavity bottom is Da/2 by curve connecting cylinder shape cavity bottom radius and annular cavity bottom radius are Rc.
Diameter described in the utility model is that the bus of the round platform of Db is the circular arc that radius does not wait.
Diameter described in the utility model is that the center line of round platform and the center line of cylindrical die cavity of Db is perpendicular.
Circular arc R a described in the utility model and circular arc R b are tangent.
Shaping upper described in the utility model and moulding counterdie are symmetrical arranged, and shape is identical, and size equates.
The utility model is rational in infrastructure, and the change ring bolt product forging meets shape and size requirement completely.
Accompanying drawing explanation
Fig. 1 is moulding lower die structure schematic diagram of the present utility model;
Fig. 2 is the A-A cutaway view in Fig. 1;
In figure 1, cylindrical die cavity, 1-1, body diameter are Da, 1-2, cylinder length are La, 2, transition die cavity, 2-1, radius are Ra, 3, annular die cavity, 3-1, radius are Rb, 3-2, diameter are Db, 3-3, radius are Rc.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
With reference to accompanying drawing, a mould for change ring bolt, comprises shaping upper and moulding counterdie, it is characterized in that: die cavity one end of described moulding counterdie is provided with cylindrical die cavity, the other end is provided with annular die cavity, and described cylindrical die cavity is connected by transition die cavity with annular die cavity; It is that Da, cylinder length are La that described cylindrical die cavity arranges body diameter, and described annular die cavity arranges the circular arc that radius is Rb, is provided with the round platform that diameter is Db on the central point of circular arc; Circular arc and cylindrical die cavity that the circular arc that described transition die cavity is Ra by radius is Rb with radius are connected; Described annular cavity bottom is provided with the circular arc that radius is Rc; Described cylindrical cavity bottom is provided with the circular arc that radius is Da/2; The circular arc that the circular arc that described transition cavity bottom is Da/2 by curve connecting cylinder shape cavity bottom radius and annular cavity bottom radius are Rc.Described diameter is that the bus of the round platform of Db is the circular arc that radius does not wait.Described diameter is that the center line of round platform and the center line of cylindrical die cavity of Db is perpendicular.Described circular arc R a and circular arc R b are tangent.Described shaping upper and moulding counterdie are symmetrical arranged, and shape is identical, and size equates.When concrete enforcement, mould uses the processing of 5CrMnMo steel, requires heat treatment case hardness HRC32-37 afterwards.
Claims (5)
1. the mould of a change ring bolt, comprise shaping upper and moulding counterdie, it is characterized in that: die cavity one end of described moulding counterdie is provided with cylindrical die cavity, and the other end is provided with annular die cavity, described cylindrical die cavity is connected by transition die cavity with annular die cavity; It is that Da, cylinder length are La that described cylindrical die cavity arranges body diameter, and described annular die cavity arranges the circular arc that radius is Rb, is provided with the round platform that diameter is Db on the central point of circular arc; Circular arc and cylindrical die cavity that the circular arc that described transition die cavity is Ra by radius is Rb with radius are connected; Described annular cavity bottom is provided with the circular arc that radius is Rc; Described cylindrical cavity bottom is provided with the circular arc that radius is Da/2; The circular arc that the circular arc that described transition cavity bottom is Da/2 by curve connecting cylinder shape cavity bottom radius and annular cavity bottom radius are Rc.
2. the mould of a kind of change ring bolt according to claim 1, is characterized in that: the bus of the round platform that described diameter is Db is the circular arc that radius does not wait.
3. the mould of a kind of change ring bolt according to claim 1, is characterized in that: the center line of the round platform that described diameter is Db and the center line of cylindrical die cavity are perpendicular.
4. the mould of a kind of change ring bolt according to claim 1, is characterized in that: described circular arc R a and circular arc R b are tangent.
5. according to the mould of a kind of change ring bolt described in claim 1, it is characterized in that: described shaping upper and moulding counterdie are symmetrical arranged, and shape is identical, size equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320621862.7U CN203599452U (en) | 2013-10-10 | 2013-10-10 | Swivel bolt forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320621862.7U CN203599452U (en) | 2013-10-10 | 2013-10-10 | Swivel bolt forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599452U true CN203599452U (en) | 2014-05-21 |
Family
ID=50712154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320621862.7U Expired - Fee Related CN203599452U (en) | 2013-10-10 | 2013-10-10 | Swivel bolt forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599452U (en) |
-
2013
- 2013-10-10 CN CN201320621862.7U patent/CN203599452U/en not_active Expired - Fee Related
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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: 20140521 Termination date: 20211010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |