CN202570999U - Dowel screw forming die - Google Patents
Dowel screw forming die Download PDFInfo
- Publication number
- CN202570999U CN202570999U CN 201220124751 CN201220124751U CN202570999U CN 202570999 U CN202570999 U CN 202570999U CN 201220124751 CN201220124751 CN 201220124751 CN 201220124751 U CN201220124751 U CN 201220124751U CN 202570999 U CN202570999 U CN 202570999U
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- cavity
- die
- shaped cavity
- chamber
- dowel screw
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- Expired - Fee Related
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Abstract
The utility model relates to a dowel screw forming die which comprises an upper die and a lower die matching with the upper die. A die cavity, a wabbler-shaped cavity and an upper stem-shaped cavity which are communicated mutually are formed in the upper die sequentially, a punch is arranged in the die cavity, a lower stem-shaped cavity and a conical cavity are sequentially formed in the lower die, and the die cavity, the wabbler-shaped cavity, the upper stem-shaped cavity, the lower stem-shaped cavity and the conical cavity are coincident in the axis. The dowel screw forming die in the scheme manufactures dowel screws meeting process requirements by the cold forging forming technology, production is simple and convenient, continuous production can be performed without a machining procedure, production efficiency is improved greatly, production cost is reduced, size, concentricity, luminance and chamfers of products are guaranteed to be stable, and production quality is improved.
Description
Technical field
The utility model relates to a kind of cold punching die, relates in particular to a kind of dowel screw mould.
Background technology
Dowel screw shown in accompanying drawing 1 is used for securing member that two different parts are linked together, comprises double-screw bolt 10, tapping screw bar 11; Be positioning boss 12 between double-screw bolt 10 and the tapping screw bar 11, positioning boss 12 radial dimensions are greater than the diameter of double-screw bolt 10 with tapping screw bar 11, and double-screw bolt 10 other ends are provided with plum blossom head 13; The other end of tapping screw 11 is a conical end 14; At first tapping screw 11 is shot in the part, the double-screw bolt 10 that its other end exposes supplies the usefulness of other connectors, and positioning boss 12 is as the usefulness of location, measured length; Operation is very easy, quick, be widely used at present.Need adopt board manufacturing procedures such as lathe, milling machine, grinding, polishing and process this dowel screw at present; The machining period extra-high-speed, the processing loss material accounts for more than 105% of product ratio, causes processing cost also very high; And the size of product, concentricity, brightness and chamfering are unstable; Differ bigger, scrappage accounts for more than 7%, has influenced the quality and the output of product.
The utility model content
The utility model purpose is for the deficiency that overcomes prior art to be provided a kind of process time that can cut down finished cost, improves the quality of products and save, and has improved the dowel screw mould of production efficiency.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of dowel screw mould, comprise patrix, with the counterdie that patrix is used, be provided with the die cavity, plum blossom capitiform chamber and the upper pole part shape chamber that communicate in the said patrix successively; Be provided with punch device in the said die cavity; Be provided with lower beam portion shape chamber, conical cavity in the said counterdie successively; The dead in line of said die cavity, plum blossom capitiform chamber, upper pole part shape chamber, lower beam portion shape chamber and conical cavity.
Preferably, said punch device is formed with the rod that dashes that is arranged on towards rod seat bottom by dashing the rod seat.
Preferably, said upper pole part shape chamber, lower beam portion shape cavity wall adopt tungsten carbide material to process.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The dowel screw mould of the utility model scheme produces this formed product mould of according with process requirements through the cold-forge forming technology, make produce simple and convenient; And can carry out continuity production; Need not to carry out machining processes, improved production efficiency greatly, reduced production cost; And the size, concentricity, brightness and the chamfering that have guaranteed product are stable, have improved product quality.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
Accompanying drawing 1 is the structural representation of dowel screw;
Accompanying drawing 2 is a structural representation in the processing of dowel screw mould of the utility model
Wherein: 1, patrix; 2, counterdie; 3, die cavity; 4, plum blossom capitiform chamber; 5, upper pole part shape chamber; 6, lower beam portion shape chamber; 7, conical cavity; 8, dash the rod seat; 9, dash rod; 10, double-screw bolt; 11, tapping screw bar; 12, positioning boss; 13, plum blossom head; 14, conical end; 15, product knock pin.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Accompanying drawing 1 is the structural representation of dowel screw; Comprise double-screw bolt 10, tapping screw bar 11; Be positioning boss 12 between double-screw bolt 10 and the tapping screw bar 11; Positioning boss 12 radial dimensions are greater than the diameter of double-screw bolt 10 with tapping screw bar 11, and double-screw bolt 10 other ends are provided with plum blossom head 13, and the other end of tapping screw 11 is a conical end 14.At first tapping screw 11 is shot in the part, double-screw bolt that its other end exposes 10 supplies the usefulness of other connectors, and positioning boss 12 is as the usefulness of location, measured length, fastening effective and operation is very easy, quick.
Accompanying drawing 2 is the described a kind of dowel screw mould of the utility model, and the counterdie 2 that comprises patrix 1, is used with patrix 1 is provided with the die cavity 3, plum blossom capitiform chamber 4 and the upper pole part shape chamber 5 that communicate successively in the said patrix 1; Be provided with punch device in the said die cavity 3, punch device is formed with the rod 10 that dashes that is arranged on towards rod seat 9 bottoms by dashing rod seat 9; Be provided with lower beam portion shape chamber 6, conical cavity 7 in the said counterdie 2 successively; The dead in line of said die cavity 3, plum blossom capitiform chamber 4, upper pole part shape chamber 5, lower beam portion shape chamber 6 and conical cavity 7; Said upper pole part shape chamber 5, lower beam portion shape chamber 6 inwalls adopt the tungsten carbide material of rub resistance to process.
Add man-hour, workpiece is placed lower beam portion shape chamber 6, patrix 1 downward punching press, the workpiece head gets into plum blossom capitiform chamber 4, extrudes plum blossom head 13 thereby contract; Then dash rod 9 downward punching press plum blossom heads 13 through dashing to drive for excellent 8; Thereby upset out positioning boss 12; Draw the conical end 14 of tapping screw 11 ends through conical cavity 7, wherein positioning boss 12 moulding between patrix end face and counterdie end face, the bar moulding of contracting at last.During the demoulding, workpiece is taken out through the product knock pin 15 that is arranged in the counterdie 2.
Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.
Claims (3)
1. dowel screw mould, comprise patrix, with the counterdie that patrix is used, it is characterized in that: be provided with the die cavity, plum blossom capitiform chamber and the upper pole part shape chamber that communicate in the said patrix successively; Be provided with punch device in the said die cavity; Be provided with lower beam portion shape chamber, conical cavity in the said counterdie successively; The dead in line of said die cavity, plum blossom capitiform chamber, upper pole part shape chamber, lower beam portion shape chamber and conical cavity.
2. a kind of dowel screw mould according to claim 1 is characterized in that: said punch device is formed with the rod that dashes that is arranged on towards rod seat bottom by dashing the rod seat.
3. a kind of dowel screw mould according to claim 1 is characterized in that: said upper pole part shape chamber, lower beam portion shape cavity wall adopt tungsten carbide material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124751 CN202570999U (en) | 2012-03-29 | 2012-03-29 | Dowel screw forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124751 CN202570999U (en) | 2012-03-29 | 2012-03-29 | Dowel screw forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202570999U true CN202570999U (en) | 2012-12-05 |
Family
ID=47240451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220124751 Expired - Fee Related CN202570999U (en) | 2012-03-29 | 2012-03-29 | Dowel screw forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202570999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495664A (en) * | 2013-10-18 | 2014-01-08 | 宁波市鄞州风名工业产品设计有限公司 | Stamping die |
| CN109386530A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of special-shaped stud |
-
2012
- 2012-03-29 CN CN 201220124751 patent/CN202570999U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495664A (en) * | 2013-10-18 | 2014-01-08 | 宁波市鄞州风名工业产品设计有限公司 | Stamping die |
| CN109386530A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of special-shaped stud |
| CN109386530B (en) * | 2018-11-09 | 2024-02-13 | 宾科汽车紧固件（昆山）有限公司 | Forming structure and forming method of special-shaped stud bolt |
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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: 20121205 Termination date: 20130329 |