CN206662079U - For difficult moulding material to Double gear-ring fine blanking die - Google Patents
For difficult moulding material to Double gear-ring fine blanking die Download PDFInfo
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- CN206662079U CN206662079U CN201720419175.5U CN201720419175U CN206662079U CN 206662079 U CN206662079 U CN 206662079U CN 201720419175 U CN201720419175 U CN 201720419175U CN 206662079 U CN206662079 U CN 206662079U
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- Prior art keywords
- ring
- double gear
- gear
- plate
- pressing plate
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Abstract
It is a kind of for difficult moulding material to Double gear-ring fine blanking die, including punch-pin, pressing plate, cavity plate and reverse ejecting plate.Pressing plate is Double gear-ring pressing plate, and the upside on mould composition surface is located at together with independent pilot punch-pin, and cavity plate is Double gear-ring cavity plate, is located at the downside on mould composition surface.The interior external toothing of Double gear-ring pressing plate is relative with the interior external toothing of Double gear-ring cavity plate, and is respectively facing two surfaces of blank to be punched, i.e., symmetrical based on blank face.The tooth top loop wire of corresponding external toothing is equal or slightly larger than the outer contour of blank on Double gear-ring pressing plate and Double gear-ring cavity plate.The problem of tradition gear ring prevents lateral flow inadequate when the utility model is directed to difficult fine material and slab fine, it is arranged oppositely Double gear-ring, material is extruded under upper and lower Double gear-ring effect, three-dimensional compressive stress is in so as to increase material, the generation of Crack prevention, further define the workpiece of maximum section of passenger flow quality.The fine scope of the difficult fine material such as high-strength panel and slab is extended using the utility model.
Description
Technical field
A kind of fine blanking die is the utility model is related to, especially for difficult moulding material to Double gear-ring fine blanking die.
Background technology
Fine can directly go out the stamping that cross section quality is good, the grade of tolerance is high from plate, it be widely used in instrument,
Electronics, automobile and other industries.But traditional fine blanking die structure can only be processed to thinner thickness, the preferable material of plasticity.Its
Reason is gear ring strength flanging fine blanking die traditional at present, sets mono-tooth ring pressing plate to prevent blank material water in the one side of mould
Advection moves, it is impossible to provides powerful resistance and powerful three-dimensional compressive stress state is formed in deformed area, so as to improve deformed area material
Plasticity so that material be in plastic deformation and it is not easy to break.
Patent document CN102039346 A disclose a kind of fine to tooth squash type fine blanking die and using the mould
Method, which employs to tooth plate and with mark of mouth mould, the section to the gear ring to tooth plate and with mark of mouth mould is triangular tooth, gear ring
With the contact line of blank respectively positioned at the outside of workpiece profile on blank, and surround the profile of workpiece, upper and lower two during blanking
Individual gear ring is respectively pressed into workpiece, prevents blank material from flowing in the horizontal direction, and carries out extruding early stage to blank material, makes blank
Material internal forms powerful three-dimensional compression, reduces the region that blank material in blanking process produces tension, avoids producing
Crackle, eliminate workpiece sharp edge and burr.But with mold using to a gear ring, for the worse high-strength steel of plasticity or
Thicker material, it is difficult to provide more powerful resistance to form the bigger three-dimensional compressive stress state in deformed area, improve the modeling of material
Property.
The content of the invention
Heavy-gauge sheeting and high intensity, the fine of inductile sheet material are not suitable with order to solve current gear ring strength flanging fine blanking die
Processing problems, the utility model proposes it is a kind of for difficult moulding material to Double gear-ring fine blanking die, using Double gear-ring flanging,
During fine, section first is pressed through material to be rushed for the gear ring of lance tooth, beneficial to the more powerful lateral resistance of offer.
Technical scheme is as follows used by the utility model：
It is a kind of for difficult moulding material to Double gear-ring fine blanking die, including punch-pin, pressing plate, cavity plate and reverse ejecting plate.Institute
It is Double gear-ring pressing plate to state pressing plate, and the upside on mould composition surface is located at together with the punch-pin of independent pilot, and the cavity plate is Double gear-ring
Cavity plate, the downside on mould composition surface is located at, reverse ejecting plate is arranged in Double gear-ring cavity plate, and reverse ejecting plate is slidably connected with cavity plate.Bidentate
It is relative with the interior external toothing of Double gear-ring cavity plate to enclose the interior external toothing of pressing plate, and is respectively facing two surfaces of blank to be punched, i.e.,
It is symmetrical based on blank face；The tooth top loop wire of corresponding external toothing is equal to or bigger on the Double gear-ring pressing plate and Double gear-ring cavity plate
In the outer contour of blank.This mould is expressed to certain journey in advance using Double gear-ring pressing plate and Double gear-ring cavity plate to difficult moulding material
Degree, punch-pin moves still further below carries out fine process.Refer to blank material outer shroud to a certain degree and be expressed to plasticity exhaustion in advance, it is in addition right
Effect to bidentate, makes when cavity plate and punch-pin move downward that material can hardly lateral flow.
Further, external toothing corresponding on the Double gear-ring pressing plate and Double gear-ring cavity plate is higher 1mm than the tooth of ring gear.
Further, the Double gear-ring pressing plate is identical with the distributed dimension of the interior external toothing on Double gear-ring cavity plate.
Effect of the present utility model is：
Mould is with treating that there is band tooth support both sides and had with mark of mouth mould, band tooth support and with mark of mouth mould double stamping respectively up and down
Gear ring and their crowns are relative two-by-two, by being pressed into material to be rushed above and below to tooth plate gear ring and with mark of mouth mould gear ring,
Material in blocking teeth Double gear-ring flows out gear ring scope, so as to ensure in the horizontal direction in the case where being extruded by convex mold
To double toothed plate, punch-pin and with bidentate cavity plate, reverse ejecting plate opposing compression under, inside the blank material of the ring gear of Double gear-ring
Very big three-dimensional compressive stress is produced, in the presence of strong three-dimensional compressive stress, the material of crush-zone has to produce Plastic Flow,
The material in the region is set to be in hydrostatic pressure state, and with maximum plastic deformation regime.Double gear-ring prevents to imitate than mono-tooth ring
Fruit can be bigger, and the latter can provide more powerful resistance to form the bigger three-dimensional compressive stress state in deformed area, improve the modeling of material
Property.So for the worse high-strength steel of plasticity or thicker material, can also be processed with fine blanking die.
The height of further this optimum design of die external toothing and position, in order to which gear ring can more successfully be pressed into base
Material, preferably plays the interception to material.
It can be seen that the utility model for difficult moulding material to Double gear-ring fine blanking die, by using to Double gear-ring
Structure, make full use of deformation drag on the outside of blank small, be easy to tooth press-in, powerful lateral resistance is more conducively provided.The utility model
Simple production process, production efficiency are high, suitable for the part that intensity is high, plasticity is poor and various geometries are more complicated of material
Fine, further expanded the scope of fine industry.
Brief description of the drawings
Fig. 1 is the utility model for difficult moulding material to the structure before starting to Double gear-ring fine blanking die fine process
Schematic diagram.
Figure 1A and Figure 1B is the partial enlarged view of A and B in Fig. 1, respectively bidentate size characteristic and treats stamping with respect to tooth
Position.
Fig. 2 be the utility model for difficult moulding material to during Double gear-ring fine blanking die fine to double toothed plate
The difficult shaping plate of gear ring press-in structural representation.
Fig. 3 is the utility model for difficult moulding material to the structure at the end of Double gear-ring fine blanking die fine process
Schematic diagram.
Sign implication in accompanying drawing is as follows：1- Double gear-ring pressing plates, 11, tooth plate external toothing, 12- tooth plate ring gears, 2- punch-pin,
3- stamping waste materials, 4- Double gear-ring cavity plates, 41- cavity plate external toothings, 42- cavity plate ring gears, 5- workpiece to be rushed, 6- reverse ejecting plates.
Embodiment
Structure and working method of the present utility model are further illustrated below in conjunction with accompanying drawing.Special instruction, this practicality
Novel protected fine blanking die, is not limited by the following examples, every to utilize principle of the present utility model and structure, by becoming
Formed technical scheme is changed, all in the scope of protection of the utility model.
The utility model is to Double gear-ring fine blanking die, structure such as Fig. 1, Figure 1A and Figure 1B institute for difficult moulding material
Show, in the upside of mould faying face, provided with the punch-pin 2 being slidably matched and Double gear-ring pressing plate 1, in the downside of mould faying face, if
There are the Double gear-ring cavity plate 4 being slidably matched and a reverse ejecting plate 6, Double gear-ring pressing plate 1 and be respectively facing workpiece 5 to be rushed with bidentate cavity plate 4
Upper and lower two surfaces, Double gear-ring pressing plate 1 and with bidentate cavity plate 4 be respectively equipped with projection inside and outside gear ring gear ring, formed two pairs to
Tooth, the section configuration of two pairs of bidentates is all triangle, and its crown is respectively towards two surfaces above and below workpiece to be rushed.Double gear-ring pressing plate and
The tooth top loop wire of corresponding tooth plate external toothing 11 and cavity plate external toothing 41 is equal or slightly larger than workpiece 5 to be rushed on Double gear-ring cavity plate
Outer contour.Double gear-ring pressing plate is identical with the distributed dimension of the interior external toothing on Double gear-ring cavity plate.Outer ring tooth is higher than internal ring gear
1mm, the crown of four gear rings is relative two-by-two, and Double gear-ring pressing plate 1 is slidably matched with punch-pin 2, band Double gear-ring cavity plate 4 and reverse ejecting plate 6
It is slidably matched.
Referring to Fig. 2 and Fig. 3, workpiece 5 to be rushed is put into the working region of mould, Double gear-ring pressing plate 1 and punch-pin 2 are relatively free of
Displacement simultaneously moves down, and descending with upper mould, external toothing first contacts and is pressed into the surface of workpiece 5 to be rushed, until gear ring is whole
Blank is pressed into, the material in the range of gear ring is pressed into the limitation of the gear ring of Double gear-ring pressing plate 1 and the gear ring of Double gear-ring cavity plate 4 of workpiece,
The ability flowed in the horizontal direction is limited, and as upper mould continues traveling downwardly, Double gear-ring pressing plate 1 continues to be displaced downwardly to and Double gear-ring
The distance of cavity plate 4 is less than the thickness of workpiece 5 to be rushed, while punch-pin 2 and reverse ejecting plate 6 are respectively relative to workpiece to be rushed and retreated, gear ring
In the range of material by Double gear-ring pressing plate 1 and Double gear-ring cavity plate 4 extruding and by three-dimensional compressive stress produce plastic deformation, fraction
Material in the range of external toothing is flowed into slot milling, and workpiece outer shroud to be rushed is expressed to plasticity exhaustion in advance, in addition to double
The effect of tooth, blank outer shroud lose Radial Flow ability completely, make when punch-pin moves downward material can hardly lateral flow,
Three-dimensional compressive stress state to reach powerful in deformed area creates condition.
After portion of material to be processed separates with peripheral waste material completely, Double gear-ring pressing plate 1 and punch-pin 2 rise die sinking, instead
Top plate 6 releases workpiece, takes out workpiece, completes fine process.
The problem of tradition gear ring prevents lateral flow inadequate when the utility model is directed to difficult fine material and slab fine, it is right
To setting Double gear-ring, outline of the external toothing tooth top against blank.Spy is used for the material and more than 12mm of the plasticity such as high-strength steel difference
The fine of slab.It is provided with the upper mould of mould to double toothed plate and punch-pin, reverse ejecting plate being provided with lower mould and with the recessed of bidentate
Mould.To being designed with the gear ring that section is triangular tooth to double toothed plate and cavity plate.High-strength steel is when being punched, upper and lower four gear rings
Blank is first pressed into, wherein, a pair of outside tooth correspond to the outline of blank, and gear ring prevents the flowing of material in the horizontal direction；
Then it is about to workpiece press-in cavity plate under punch-pin, material is extruded under upper and lower Double gear-ring effect, is in so as to increase material
Three-dimensional compressive stress, the generation of Crack prevention, further define the workpiece of maximum section of passenger flow quality.Height is extended using the utility model
The fine scope of the difficult fine material such as intensity sheet material and slab.
Above example is only to further explanation of the present utility model, it will be appreciated that protection of the present utility model is simultaneously
It is not limited to above example.Meanwhile the utility model be by：" national natural science fund subsidy project（51375521）" subsidize
And complete.
Claims (3)
1. it is a kind of for difficult moulding material to Double gear-ring fine blanking die, including punch-pin, pressing plate, cavity plate and reverse ejecting plate；It is special
Sign is that the pressing plate is Double gear-ring pressing plate, and the upside on mould composition surface, the cavity plate are located at together with the punch-pin of independent pilot
For Double gear-ring cavity plate, be located at the downside on mould composition surface, reverse ejecting plate is arranged in Double gear-ring cavity plate, Double gear-ring pressing plate it is inside and outside
Gear ring is relative with the inside and outside gear ring of Double gear-ring cavity plate, and is respectively facing two surfaces of blank to be punched, i.e., is faced based on blank
Claim；The tooth top loop wire of corresponding external toothing is equal or slightly larger than the foreign steamer of blank on the Double gear-ring pressing plate and Double gear-ring cavity plate
Profile.
It is 2. according to claim 1 to Double gear-ring fine blanking die, it is characterised in that：The Double gear-ring pressing plate and Double gear-ring
Corresponding external toothing is higher 1mm than the tooth of ring gear on cavity plate.
It is 3. according to claim 1 or 2 to Double gear-ring fine blanking die, it is characterised in that：The Double gear-ring pressing plate and double
The distributed dimension of interior external toothing on gear ring cavity plate is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419175.5U CN206662079U (en) | 2017-04-20 | 2017-04-20 | For difficult moulding material to Double gear-ring fine blanking die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720419175.5U CN206662079U (en) | 2017-04-20 | 2017-04-20 | For difficult moulding material to Double gear-ring fine blanking die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206662079U true CN206662079U (en) | 2017-11-24 |
Family
ID=60372381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720419175.5U Expired - Fee Related CN206662079U (en) | 2017-04-20 | 2017-04-20 | For difficult moulding material to Double gear-ring fine blanking die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206662079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570606A (en) * | 2020-05-22 | 2020-08-25 | 哈尔滨工业大学（威海） | Fine blanking die with integral strength and work hardening of blanking surface and fine blanking method |
-
2017
- 2017-04-20 CN CN201720419175.5U patent/CN206662079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570606A (en) * | 2020-05-22 | 2020-08-25 | 哈尔滨工业大学（威海） | Fine blanking die with integral strength and work hardening of blanking surface and fine blanking method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |