CN201768834U - Bolt cold forming die - Google Patents
Bolt cold forming die Download PDFInfo
- Publication number
- CN201768834U CN201768834U CN2010202970832U CN201020297083U CN201768834U CN 201768834 U CN201768834 U CN 201768834U CN 2010202970832 U CN2010202970832 U CN 2010202970832U CN 201020297083 U CN201020297083 U CN 201020297083U CN 201768834 U CN201768834 U CN 201768834U
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- Prior art keywords
- hole
- bolt
- shaping unit
- mould
- final shaping
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Abstract
The utility model discloses a bolt cold forming die, which comprises a preforming die and a final forming die. The preforming die consists of a preforming die sleeve (1) and a preforming die core arranged inside the preforming die sleeve (1). The final forming die consists of a final forming die sleeve (3) and a final forming die core (4) arranged inside the final forming die sleeve (3). A bolt head forming hole (5) and a round table-shaped forming hole (6) of a transitional section of a bolt head and a flange surface are sequentially arranged inside the preforming doe core (2), a cylindrical lead-in hole (7) (7) is further arranged inside the preforming die core (2), the lead-in hole (7), the round table-shaped forming hole (6) and the bolt head forming hole (5) are sequentially arranged from left to right, and a through hole (8) for placing the bolt head and a flange surface forming hole (9) are arranged inside the final forming die core (4). The die avoids flashing during bolt processing and is long in service life.
Description
Technical field
The utility model relates to a kind of mould, specifically is a kind of bolt cold forming mould.
Background technology
The bolt cold forming mould of prior art comprises preforming tool and final shaping unit mould, and described preforming tool is made up of preformed die sleeve 101 and preformed core rod 102; Described final shaping unit mould is made up of final shaping unit die sleeve 103 and final shaping unit core rod 104; Described preformed core rod 102 is located in the described preformed die sleeve 101; Described final shaping unit core rod 104 is located in the described final shaping unit die sleeve 103; Be provided with a bolt head moulding hole 105 and flange face moulding hole 106 in the described preformed core rod 102 successively; The exposed end of described final shaping unit core rod 104 is provided with side cut cutter 107.There is following defective in the bolt cold forming mould of said structure in the production use of reality:
1, because the preforming mould in-core of this mould is provided with a bolt head moulding hole, flange face moulding hole successively, therefore this mould is when processing bolt, can utilize preformed die sleeve and disposable bolt head of preformed core rod and flange face, but because the formation for flange face relies on extruding fully in forming process, therefore the bolt of producing can produce overlap.Though overlap can utilize the cutter excision on the final shaping unit core rod, because the generation of overlap is arranged, therefore will inevitably produce waste material, and then reduce the utilization rate of material, has finally greatly increased the manufacturing cost of bolt.
2, because this mould is that direct forming goes out bolt head and flange face, the deformation force that mould bears is bigger, so the service life of this mould is shorter.
The utility model content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, and a kind of bolt cold forming mould that does not produce overlap and long service life is provided.
The technical solution of the utility model is, a kind of bolt cold forming mould is provided, and comprises preforming tool and final shaping unit mould, and described preforming tool is made up of preformed die sleeve and the preformed core rod that is located in the preformed die sleeve; Described final shaping unit mould is made up of final shaping unit die sleeve and the final shaping unit core rod that is located in the final shaping unit die sleeve; Described preforming mould in-core is provided with the truncated cone-shaped moulding hole of a bolt head moulding hole and bolt head and flange face changeover portion successively, described preforming mould in-core also is provided with a columniform entrance hole, and described entrance hole, truncated cone-shaped moulding hole and bolt head moulding hole set gradually from left to right; Be provided with the through hole and the flange face moulding hole of placing in the described final shaping unit core rod for bolt head.
After adopting above structure, the utility model compared with prior art has the following advantages:
1, the utility model mould is provided with columniform entrance hole, can be used for storing the material of moulding flange face, therefore can pass through preforming tool elder generation moulding bolt head earlier, and then by the flange face moulding hole forming flange face on the final shaping unit mould.Because the metal material that is stored in the entrance hole relies on the truncated cone-shaped in the final shaping unit mould to process flange face, therefore can avoid producing overlap, therefore avoid the generation of waste material, save material, and then improved the utilization rate of material, finally greatly reduced the bolt manufacturing cost.
2, since the utility model mould respectively by preforming tool and final shaping unit mould molding bolt head and flange face, the deformation force that mould bears is less, so the service life of this mould is longer.In addition, the utility model mould can make the metal structure of material itself finer and close, thereby the serviceability of bolt part is improved by after the material of making bolt is squeezed through contracting.
Description of drawings
Fig. 1 is a preform mould structure schematic diagram of the present utility model.
Fig. 2 is a whole shaping dies structural representation of the present utility model.
Fig. 3 is the preform mould structure schematic diagram of prior art.
Fig. 4 is the whole shaping dies structural representation of prior art.
Fig. 5 is the front view that the utility model preforming tool is made bolt part.
Fig. 6 is the side view that the utility model preforming tool is made bolt part.
Fig. 7 is the front view that the utility model final shaping unit mould is made bolt part.
Fig. 8 is the side view that the utility model final shaping unit mould is made bolt part.
Fig. 9 is the front view that the prior art preforming tool is made bolt part.
Figure 10 is the side view that the prior art preforming tool is made bolt part.
Figure 11 is the front view that prior art final shaping unit mould is made bolt part.
Figure 12 is the side view that prior art final shaping unit mould is made bolt part.
Shown in the figure 1, the preformed die sleeve, 2, the preformed core rod, 3, the final shaping unit die sleeve, 4, final shaping unit core rod, 5, bolt head moulding hole, 6, truncated cone-shaped moulding hole, 7, entrance hole, 8, through hole, 9, flange face moulding hole, 101, preformed die sleeve, 102, the preformed core rod, 103, the final shaping unit die sleeve, 104, final shaping unit core rod, 105, bolt head moulding hole, 106, flange face moulding hole, 107, the side cut cutter.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of bolt cold forming of the utility model mould comprises preforming tool and final shaping unit mould, and described preforming tool is made up of preformed die sleeve 1 and the preformed core rod 2 that is located in the preformed die sleeve 1; Described final shaping unit mould is made up of final shaping unit die sleeve 3 and the final shaping unit core rods 4 that are located in the final shaping unit die sleeve 3; Be provided with the truncated cone-shaped moulding hole 6 of a bolt head moulding hole 5 and bolt head and flange face changeover portion in the described preformed core rod 2 successively, also be provided with a columniform entrance hole 7 in the described preformed core rod 2, described entrance hole 7, truncated cone-shaped moulding hole 6 and bolt head moulding hole 5 set gradually from left to right; Be provided with the through hole 8 and the flange face moulding hole 9 of placing for bolt head in the described final shaping unit core rod 4, flange face moulding hole 9 is generally truncated cone-shaped.
The flange face moulding hole 9 of shaping flange face is positioned at die orifice, and the gradient of Rotary-table is pressed product requirement, and the bus in promptly described flange face moulding hole 9 and the angle of risers are 22 °; Enter through hole 8 for hex bolts, its hexagonal S face size is slightly larger than the S face size of product requirement.The die surface roughness is had relatively high expectations.Whole finishing die be shaped flange face and the final hexagonal S face size that guarantees.
The utility model mould is made up of preform mould and whole shaping dies, and the deformable metal volume done more rational distribution, hexagonal and flange face are formed separately. preform mould elder generation shaping hex bolts head, the height of hex bolts head approaches the height of product requirement, when the cylinder that entrance hole 7 forms on the mould is whole shaping flange face metal volume has been done predistribution, whole finishing die is used to the flange face that is shaped, and makes hexagonal S face size reach product requirement.
The utility model mould is the new construction mould at round bar one end shaping hexagonal flange face, crowded by metal material is contracted on the one hand, hexagonal and flange face are formed respectively, on the other hand the deformable metal volume is carried out more rational distribution, help metal flow, thereby eliminated the overlap that the back that is shaped produces, improved stock utilization, reduce deformation force simultaneously, improved die life.The new construction mould is applicable to five jiaos of shapings, hexagonal, anistree flange face product and hexagon flange bolt etc.
Below only be described, but can not be interpreted as it is restriction claim with regard to most preferred embodiment of the present utility model.The utility model is not limited only to above embodiment, and its concrete structure allows variation.All various variations of being done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (3)
1. a bolt cold forming mould comprises preforming tool and final shaping unit mould, and described preforming tool is made up of preformed die sleeve (1) and the preformed core rod (2) that is located in the preformed die sleeve (1); Described final shaping unit mould is made up of final shaping unit die sleeve (3) and the final shaping unit core rod (4) that is located in the final shaping unit die sleeve (3); Be provided with the truncated cone-shaped moulding hole (6) of a bolt head moulding hole (5) and bolt head and flange face changeover portion in the described preformed core rod (2) successively, it is characterized in that: also be provided with a columniform entrance hole (7) in the described preformed core rod (2), described entrance hole (7), truncated cone-shaped moulding hole (6) and bolt head moulding hole (5) set gradually from left to right; Be provided with the through hole (8) and the flange face moulding hole (9) of placing in the described final shaping unit core rod (4) for bolt head.
2. bolt cold forming mould according to claim 1 is characterized in that: the bus in described truncated cone-shaped moulding hole (6) and the angle of horizontal plane are 25 °.
3. bolt cold forming mould according to claim 1 is characterized in that: the bus in described flange face moulding hole (9) and the angle of risers are 22 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202970832U CN201768834U (en) | 2010-08-18 | 2010-08-18 | Bolt cold forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202970832U CN201768834U (en) | 2010-08-18 | 2010-08-18 | Bolt cold forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201768834U true CN201768834U (en) | 2011-03-23 |
Family
ID=43748666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202970832U Expired - Fee Related CN201768834U (en) | 2010-08-18 | 2010-08-18 | Bolt cold forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201768834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284534A (en) * | 2011-07-25 | 2011-12-21 | 浙江捷能汽车零部件有限公司 | Cold-forming method for hexagon flange face bolt |
| CN103722106A (en) * | 2012-10-10 | 2014-04-16 | 聚亨企业股份有限公司 | Forming device and manufacturing method of hex screws |
-
2010
- 2010-08-18 CN CN2010202970832U patent/CN201768834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284534A (en) * | 2011-07-25 | 2011-12-21 | 浙江捷能汽车零部件有限公司 | Cold-forming method for hexagon flange face bolt |
| CN103722106A (en) * | 2012-10-10 | 2014-04-16 | 聚亨企业股份有限公司 | Forming device and manufacturing method of hex screws |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130818 |