CN203109149U - Special double-headed bolt cold heading device - Google Patents
Special double-headed bolt cold heading device Download PDFInfo
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- CN203109149U CN203109149U CN 201220747942 CN201220747942U CN203109149U CN 203109149 U CN203109149 U CN 203109149U CN 201220747942 CN201220747942 CN 201220747942 CN 201220747942 U CN201220747942 U CN 201220747942U CN 203109149 U CN203109149 U CN 203109149U
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Abstract
The utility model discloses a special double-headed bolt cold heading device which comprises a feeing mechanism, a cutting mechanism, a conveying mechanism and four molds. The feeding mechanism corresponds to the cutting mechanism in terms of position. The conveying mechanism moves and conveys materials among the feeding mechanism and the molds. The molds comprise the first mold for squeezing a thread forming rod diameter, the second mold for preforming a head portion, the third mold for forming a contracted hexagonal plum and a head portion and the forth mold for contracting a hexagonal plum and forming a flange. The four molds are sequentially arranged. According to the special double-headed bolt cold heading device, CNC whole machining technology is not needed, the utilization rate of materials is improved, metal flow lines in the materials are not damaged and strength of the special double-headed bolt is improved. Meanwhile, the production speed of the special double-headed bolt rises to 70pcs per minute from 1pcs per minute and production efficiency is greatly improved.
Description
Technical field
The utility model relates to technical field of mold, particularly a kind of special-shaped stud cold-heading device for cooling system.
Background technology
Stud uses very extensive in machinery equipment, and the stud of prior art comprises first threaded rod, polished rod and second threaded rod that is connected in one, described first threaded rod, polished rod and the second threaded rod coaxial line.The abnormity stud is a kind of of stud, comprise head, flange and bar portion, wherein, the top of special-shaped stud head is that hexagonal is quincunx, therefore, during machine-shaping, product head and flange materials are too much, and bar portion is thinner relatively, if adopt cold heading technique, its cold-heading deformation rate then can exceed the theory deformation limit, thereby difficult forming.In the prior art, mostly those skilled in the art are to adopt the CNC(Digit Control Machine Tool) full processing technology comes the described special-shaped stud of moulding, but the stock utilization of this technology is low, production efficiency is not high, processing cost is high, quality is unstable and can destroy the metal streamline of material, has reduced the strength of materials.
The utility model content
The utility model provides a kind of special-shaped stud cold-heading device, to overcome the problem that stock utilization is low in the prior art, production efficiency is not high and the strength of materials is low.
For solving the problems of the technologies described above, the utility model provides a kind of special-shaped stud cold-heading device, comprising: feed mechanism, shut-off mechanism, connecting gear and four moulds, and wherein, described feed mechanism is corresponding with the position of shut-off mechanism; Described connecting gear is mobile feeding between described feed mechanism and mould; Described mould comprises: be used for extruding threading bar footpath first mould, be used for the preformed head second mould, be used for moulding contract the 3rd mould of six plum blossoms and head and the 4th mould that is used for contracting six plum blossoms and moulding flange, described four moulds are arranged in order.
As preferably, described first, second, third, fourth mould comprises respectively: main mould and punch die, the corresponding setting with punch die of main mould, described main mould comprises: main formwork, main die-cushion piece, main die and main mould thimble, described main formwork is set on described main die and the main die-cushion piece, described main die is fixed on the described main die-cushion piece, and is provided with main die cavity in the main die, and described main mould thimble runs through described main die-cushion piece and main die until described main die cavity; Described punch die comprises: punch die thimble, punch die shell and punch die cushion block, described punch die cushion block are fixed in the described punch die shell and with an end of punch die thimble and link to each other, and the other end of described punch die thimble passes described punch die shell, and points to described main die cavity.
As preferably, described first, second mould also comprises two main mould springs respectively, and described main mould spring is arranged in the described main die-cushion piece and with described main die and links to each other.
As preferably, described connecting gear is clip.
As preferably, described four moulds are installed on presses that to make power be on 125 tons of cold headers.
Compared with prior art, the utlity model has following advantage:
1, reduced material cost by cold upset forming, added every feed consumption 260g by machine, be reduced to every 27g, cut down finished cost; Speed of production is brought up to 70pcs/min by the 1pcs/min that the full machine of CNC adds, and has improved production efficiency;
2, need not to use the full processing technology of CNC, shortened the process-cycle,
Improved the stability of product size, the intensity of the complete raising interior tissue of material metal streamline.
Description of drawings
Fig. 1 is the structural representation of special-shaped stud cold-heading device in the utility model one specific embodiment;
Fig. 2 is the structural representation of the 3rd mould in the utility model one specific embodiment;
Fig. 3 is the structural representation of first mould in the utility model one specific embodiment.
Among the figure: 10-feed mechanism, 20-shut-off mechanism, 30-connecting gear, 40-mould, 41-first mould, 42-second mould, 43-the 3rd mould, 44-the 4th mould, 401-master's formwork, 402-master's die-cushion piece, 403-master's die, 404-master's mould thimble, 405-master's die cavity, 406-punch die thimble, 407-punch die shell, 408-punch die cushion block, 409-master's mould spring.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.It should be noted that the utility model accompanying drawing all adopts the form of simplification and all uses non-ratio accurately, only in order to convenient, the purpose of aid illustration the utility model embodiment lucidly.
Please refer to Fig. 1, special-shaped stud cold-heading device of the present utility model comprises: feed mechanism 10, shut-off mechanism 20, connecting gear 30 and four moulds 40, and wherein, described feed mechanism 10 is corresponding with the position of shut-off mechanism 20; The mobile feeding between described feed mechanism 10 and mould 40 of described connecting gear 30; Described mould 40 comprises: be used for extruding threading bar footpath first mould 41, be used for the preformed head second mould 42, be used for moulding contract the 3rd mould 43 of six plum blossoms and head and the 4th mould 44 that is used for contracting six plum blossoms and moulding flange, described four moulds 40 are arranged in order.Particularly, the station material is sent to first mould, 41 places through feed mechanism 10 feedings, cutting mechanism 20 after shearing, first, second, third, fourth mould 41,42,43,44 carries out moulding to its threading bar footpath and head successively, need not to use the full processing technology of CNC, improved the utilization rate of material, and do not destroy the metal streamline of material internal, improved the intensity of described special-shaped stud.Simultaneously, the speed of production of special-shaped stud is promoted by original 1pcs/min and is present 70pcs/min, and production efficiency has obtained improving greatly.
Please refer to Fig. 2 and Fig. 3, and in conjunction with Fig. 1, as preferably, described first, second, third, fourth mould 41,42,43,44 comprises respectively: main mould and punch die, the corresponding setting with punch die of main mould.Be example with the 3rd mould 43 among Fig. 2, described main mould comprises: main formwork 401, main die-cushion piece 402, main die 403 and main mould thimble 404, described main formwork 401 is set on described main die 403 and the main die-cushion piece 402, described main die 403 is fixed on the described main die-cushion piece 402, and be provided with main die cavity 405 in the main die 403, described main mould thimble 404 runs through described main die-cushion piece 402 and main die 403 until described main die cavity 405; Described punch die comprises: punch die thimble 406, punch die shell 407 and punch die cushion block 408, described punch die cushion block 408 is fixed in the described punch die shell 407 and with an end of punch die thimble 406 and links to each other, the other end of described punch die thimble 406 passes described punch die shell 407, and points to described main die cavity 405.Please refer to Fig. 3, described first, second mould 41,42 also comprises two main mould springs 409 respectively, is example with first mould 41 among Fig. 3, and described main mould spring 409 is arranged in the described main die-cushion piece 402 and with described main die 403 and links to each other.
Particularly, the main die 403 in described first mould 41 and second mould 42 is in active state in the course of the work.That is, described first mould 41 and second mould 42 adopt the version of main mould activity, punch die undergauge.That is to say, when punch die descends, main die 403 is under the promotion of punch die shell 407, move down, when main mould thimble 404 advanced main die cavity 405 with the station material, the active force that the station material is subjected to oppositely extruding entered into punch die shell 407, thereby carries out the moulding in threading bar footpath, first mould 41 adopts these versions, solved special-shaped stud in this area and exceeded the theory deformation limit and a difficult problem that can't undergauge in punch die internal strain rate; Second mould 42 adopts these structures then to solve the big and difficult problem of the unstability that produces of special-shaped stud excuse portion deflection.The 3rd mould 43 is in preformed station stub bar portion, also preformed the guide ends of six plum blossoms that contract, this design has solved a difficult problem of not having guiding contracting six plum blossoms, the 4th mould 44 contract six plum blossoms and moulding flange, and satisfied all sizes of special-shaped stud.
As preferably, described connecting gear 30 is clip, realizes the transmission of station material between four moulds 40.Preferable, described four moulds 40 are installed on and press the power of making is on 125 tons the cold headers.
Please continue with reference to Fig. 1 ~ 3, the utility model also provides a kind of cold heading technique that is applied in the above-mentioned special-shaped stud cold-heading device, comprising:
The station material is provided, shears and be transferred to mould 40 places, particularly, feed mechanism 10 carries out feeding, moves to first mould, 41 places after cutting mechanism 20 is sheared the station material;
The threading bar footpath on extrusion position material top, preferable, this processing step is finished in first mould 41, and first mould 41 adopts reverse forward extrusion technology to push the threading bar footpath on described station material top;
The head of the described station material of preformed, this step is carried out in second mould 42, and second mould 42 has designed the mode of main mould activity, punch die undergauge, has solved the big difficult problem of station stub bar portion deflection;
The contract guide end of six plum blossoms of preformed, and the head of preformed station material, this step is carried out in the 3rd mould 43, has solved a difficult problem of not having guiding contracting six plum blossoms;
Contract six plum blossoms and moulding flange, this step is carried out in the 4th mould 44, can satisfy all dimensional requirements of special-shaped stud simultaneously.
In sum, special-shaped stud cold-heading device of the present utility model comprises: feed mechanism 10, shut-off mechanism 20, connecting gear 30 and four moulds 40, and wherein, described feed mechanism 10 is corresponding with the position of shut-off mechanism 20; The mobile feeding between described feed mechanism 10 and mould 40 of described connecting gear 30; Described mould 40 comprises: be used for extruding threading bar footpath first mould 41, be used for the preformed head second mould 42, be used for moulding contract the 3rd mould 43 of six plum blossoms and head and the 4th mould 44 that is used for contracting six plum blossoms and moulding flange, described four moulds 40 are arranged in order.The utlity model has following advantage:
1, first mould 41 adopts main mould activity, and the version of the strong contracting of punch die has solved punch die cold-heading deformation rate in this area and exceeded the difficult problem that the theory deformation limit can't undergauge;
2, second mould 42 adopts main mould activity, and the mode of punch die undergauge has solved the difficult problem of the big unstability of leading edge deformation amount;
3, station has solved a difficult problem of not having guiding contracting six plum blossoms by the unique design to six plum blossoms that contract;
4, reduced material cost by cold upset forming, added every feed consumption 260g by machine, be reduced to every 27g, cut down finished cost; Speed of production is brought up to 70pcs/min by the 1pcs/min that the full machine of CNC adds, and has improved production efficiency;
5, need not to use the full processing technology of CNC, shortened the process-cycle, improved the stability of product size, the intensity of the complete raising interior tissue of material metal streamline.
Obviously, those skilled in the art can carry out various changes and modification to utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these revise and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these change and modification.
Claims (5)
1. a special-shaped stud cold-heading device is characterized in that, comprising: feed mechanism, shut-off mechanism, connecting gear and four moulds, wherein,
Described feed mechanism is corresponding with the position of shut-off mechanism;
Described connecting gear is mobile feeding between described feed mechanism and mould;
Described mould comprises: be used for extruding threading bar footpath first mould, be used for the preformed head second mould, be used for moulding contract the 3rd mould of six plum blossoms and head and the 4th mould that is used for contracting six plum blossoms and moulding flange, described four moulds are arranged in order.
2. special-shaped stud cold-heading device as claimed in claim 1, it is characterized in that, described first, second, third, fourth mould comprises respectively: main mould and punch die, the corresponding setting with punch die of main mould, described main mould comprises: main formwork, main die-cushion piece, main die and main mould thimble, described main formwork is set on described main die and the main die-cushion piece, described main die is fixed on the described main die-cushion piece, and be provided with main die cavity in the main die, described main mould thimble runs through described main die-cushion piece and main die until described main die cavity; Described punch die comprises: punch die thimble, punch die shell and punch die cushion block, described punch die cushion block are fixed in the described punch die shell and with an end of punch die thimble and link to each other, and the other end of described punch die thimble passes described punch die shell, and points to described main die cavity.
3. special-shaped stud cold-heading device as claimed in claim 2 is characterized in that, described first, second mould also comprises two main mould springs respectively, and described main mould spring is arranged in the described main die-cushion piece and with described main die and links to each other.
4. special-shaped stud cold-heading device as claimed in claim 1 is characterized in that described connecting gear is clip.
5. special-shaped stud cold-heading device as claimed in claim 1 is characterized in that, described four moulds are installed on presses that to make power be on 125 tons of cold headers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220747942 CN203109149U (en) | 2012-12-29 | 2012-12-29 | Special double-headed bolt cold heading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220747942 CN203109149U (en) | 2012-12-29 | 2012-12-29 | Special double-headed bolt cold heading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109149U true CN203109149U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220747942 Expired - Lifetime CN203109149U (en) | 2012-12-29 | 2012-12-29 | Special double-headed bolt cold heading device |
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| CN (1) | CN203109149U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909204A (en) * | 2012-12-29 | 2014-07-09 | 宾科汽车紧固件（昆山）有限公司 | Special-shaped stud cold heading device and cold heading process thereof |
| CN105127355A (en) * | 2015-09-17 | 2015-12-09 | 宾科汽车紧固件（昆山）有限公司 | Electronic parking drive bolt cold heading device and machining method thereof |
| CN111872295A (en) * | 2020-08-12 | 2020-11-03 | 苏州孚莱博精密金属科技有限公司 | Cold heading module and cold heading process for manufacturing middle bolt of engine |
-
2012
- 2012-12-29 CN CN 201220747942 patent/CN203109149U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909204A (en) * | 2012-12-29 | 2014-07-09 | 宾科汽车紧固件（昆山）有限公司 | Special-shaped stud cold heading device and cold heading process thereof |
| CN105127355A (en) * | 2015-09-17 | 2015-12-09 | 宾科汽车紧固件（昆山）有限公司 | Electronic parking drive bolt cold heading device and machining method thereof |
| CN111872295A (en) * | 2020-08-12 | 2020-11-03 | 苏州孚莱博精密金属科技有限公司 | Cold heading module and cold heading process for manufacturing middle bolt of engine |
| CN111872295B (en) * | 2020-08-12 | 2021-03-26 | 苏州孚莱博精密金属科技有限公司 | Cold heading module and cold heading process for manufacturing middle bolt of engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |