CN102601240A - Dowel screw forming die - Google Patents
Dowel screw forming die Download PDFInfo
- Publication number
- CN102601240A CN102601240A CN2012100866128A CN201210086612A CN102601240A CN 102601240 A CN102601240 A CN 102601240A CN 2012100866128 A CN2012100866128 A CN 2012100866128A CN 201210086612 A CN201210086612 A CN 201210086612A CN 102601240 A CN102601240 A CN 102601240A
- Authority
- CN
- China
- Prior art keywords
- cavity
- die
- dowel screw
- chamber
- shaped cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Forging (AREA)
Abstract
The invention discloses a dowel screw forming die, which comprises an upper die and a lower die used with the upper die. A die cavity, a wabbler-shaped cavity and an upper rod-shaped cavity which are communicated with one another are sequentially arranged in the upper die; a punch device is arranged in the die cavity; a lower rod-shaped cavity and a conical cavity are sequentially arranged in the lower die; and the axes of the die cavity, the wabbler-shaped cavity, the upper rod-shaped cavity, the lower rod-shaped cavity and the conical cavity are overlapped. The dowel screw forming die meeting process requirements is manufactured by means of cold forging, production is simple and convenient, continuous production can be realized, machining procedures are omitted, production efficiency is greatly improved, production cost is reduced, the size, concentricity, brightness and chamfering stability of a dowel screw are ensured, and the quality of the dowel screw is improved.
Description
Technical field
The present invention relates to a kind of cold punching die, relate 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.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed a kind ofly can cut down finished cost, improve the quality of products and saved process time, improved the dowel screw mould of production efficiency.
Technical solution of the present invention is achieved in that a kind of dowel screw mould, and the counterdie that comprises patrix, is used with patrix is provided with the die cavity, plum blossom capitiform chamber and the upper pole part shape chamber that communicate successively in the said patrix; 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 present invention compared with prior art has advantage:
Dowel screw mould of the present invention 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 technical scheme of the present invention 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 present invention
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 the present invention is described.
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 a kind of dowel screw mould of the present invention, 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.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
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 |
|---|---|---|---|
| CN2012100866128A CN102601240A (en) | 2012-03-29 | 2012-03-29 | Dowel screw forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100866128A CN102601240A (en) | 2012-03-29 | 2012-03-29 | Dowel screw forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102601240A true CN102601240A (en) | 2012-07-25 |
Family
ID=46519223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100866128A Pending CN102601240A (en) | 2012-03-29 | 2012-03-29 | Dowel screw forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102601240A (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 |
| CN104668324A (en) * | 2015-02-06 | 2015-06-03 | 舟山市7412工厂 | Forming method for double-end stud blank |
| CN108787979A (en) * | 2018-08-24 | 2018-11-13 | 重庆标准件工业有限责任公司 | The big chamfering cold upsetting die of car of bolt and technique |
-
2012
- 2012-03-29 CN CN2012100866128A patent/CN102601240A/en active Pending
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 |
| CN104668324A (en) * | 2015-02-06 | 2015-06-03 | 舟山市7412工厂 | Forming method for double-end stud blank |
| CN108787979A (en) * | 2018-08-24 | 2018-11-13 | 重庆标准件工业有限责任公司 | The big chamfering cold upsetting die of car of bolt and technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101947567B (en) | Processing technique of flat-head hexagon bolt for cold extrusion shaping cart | |
| CN104209702B (en) | Abnormity nut cold-heading device and production technology thereof | |
| CN102601589A (en) | Process for manufacturing quincuncial dowel screws | |
| CN102152061A (en) | Process for manufacturing outer sleeve blanks | |
| CN103831390A (en) | Cold heading forming method of car sleeve and mould structure for sleeve forming | |
| CN103934638A (en) | Precision external spline pipe forming method | |
| CN104209443B (en) | Spline pin roll cold heading device and production process thereof | |
| CN204094038U (en) | Special shaped screw bolt cold-heading device | |
| CN103921064A (en) | Technology for machining cold upset nuts | |
| CN103447441B (en) | Helical gear heading mold | |
| CN205032636U (en) | Panel welded nut cold -heading device | |
| CN205032618U (en) | Stifled cold -heading device of oil | |
| CN201815555U (en) | Machining equipment for flat-head hexagon bolt of cold-extrusion forming vehicle | |
| CN203390144U (en) | Bolt upsetting mould | |
| CN102601240A (en) | Dowel screw forming die | |
| CN101564813B (en) | Process for machining cold-forging plunger latch head | |
| CN102581056A (en) | Die and method for machining sleeve part with steps in inner hole | |
| CN202570999U (en) | Dowel screw forming die | |
| CN112719178A (en) | Method for manufacturing bearing pin for welding of vehicle | |
| CN205032637U (en) | Outer flower tooth flange nut cold -heading device | |
| CN205056912U (en) | Improvement structure of perpendicular two -way double action forging module | |
| CN103599954A (en) | Cold extrusion forming process and mold of internal gear | |
| CN105251923A (en) | Cold heading forming process for transmission gear and heavy extruding die structure for forming middle teeth | |
| CN104801648A (en) | Motor gear shaft cold heading forming process | |
| CN205926971U (en) | A cold heading die group for making drive shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |