CN207414034U - A kind of bipyramid drawing die - Google Patents
A kind of bipyramid drawing die Download PDFInfo
- Publication number
- CN207414034U CN207414034U CN201721483697.8U CN201721483697U CN207414034U CN 207414034 U CN207414034 U CN 207414034U CN 201721483697 U CN201721483697 U CN 201721483697U CN 207414034 U CN207414034 U CN 207414034U
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- China
- Prior art keywords
- compression section
- bipyramid
- angle
- section
- drawing die
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- 238000007906 compression Methods 0.000 claims abstract description 53
- 230000006835 compression Effects 0.000 claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Metal Extraction Processes (AREA)
Abstract
The utility model discloses a kind of bipyramid drawing dies, it is manufactured for steel pipe's production, it includes outer mould body, the outer mould body is divided into entrance, bipyramid compression section and outlet section, the bipyramid compression section is divided into the first compression section and the second compression section, the angle of the entrance and outlet section is both greater than compression section angle, and first compression section angle [alpha] is 23 ° -25 °, and the second compression section angle beta is 11 ° -13 °.Cleverly using double cone structure, extend compression section, the pulling capacity for reducing drawing die, the dimensional accuracy and inside surface roughness for being drawn steel pipe are can guarantee while promoting drawing die external mold service life.
Description
Technical field
The utility model is related to metal-cutting machine tool technical fields, are specifically a kind of bipyramid drawing for steel pipe manufacture
Mould.
Background technology
With the attention that country develops industrial trade, the demand of market mechanical processing industry is also more and more huger, in machine
Often it is related to the use of drawing die in tool process, metal is realized when drawing mould is drawing by compression process, and obtains it
Required shape and size press-working tool, the positive extensive utilization of steel pipe to all trades and professions, as building, health care,
Oil etc., the especially utilization in automotive field, drawing are the most common plastic processing methods of tubing processing, and its essence is fingers
Under external force, metal base pipe is by die hole, to obtain respective shapes and product, in actual production with it is more be that taper is drawn
Draft.
In the prior art, the structure that the drawing die of steel pipe manufacture uses is single wimble structure, and pulling capacity is larger and lubrication is imitated
Fruit is bad, and as the requirement to steel pipe sizes precision and inside surface roughness improves, existing drawing mould cannot meet
The requirement of product.
Utility model content
The utility model mainly solves that current existing drawing die pulling capacity is larger, lubricant effect is bad, it is difficult to ensure drawing
The problem of dimensional accuracy and inside surface roughness of steel pipe, in order to solve the above technical problems, proposing a kind of for steel pipe manufacture
Bipyramid drawing die.
In order to solve the above-mentioned technical problem, the utility model provides following technical solution：
The utility model is bipyramid drawing die, and including outer mould body, the outer mould body is divided into entrance, bipyramid compression
Section and outlet section, the bipyramid compression section are divided into the angle of the first compression section and the second compression section, the entrance and outlet section
Both greater than compression section angle, first compression section angle [alpha] are 23 ° -25 °, and the second compression section angle beta is 11 ° -13 °.
According to the bipyramid drawing die described in the utility model, further optimal technical scheme is first compression
Section angle [alpha] is 24 °.
According to the bipyramid drawing die described in the utility model, the second compression section described in further optimal technical scheme
Angle beta for 12 °, be additionally provided with profiled section between second compression section and outlet.
Compared with prior art, there are following advantageous effects for the utility model：
The utility model uses double cone type（Both it had been the increase in the second compression section and has formed bipyramid）, compression section is extended, is subtracted
Pulling capacity during small steel pipe drawing, and the second compression section uses cone angle taper as 11 ° -13 °, compared to it is existing only
There are one compression section and compression angle it is constant in the case of, greatly improve the lubricity of drawing die, used so as to improve external mold
The dimensional accuracy and inside surface roughness of steel pipe drawing can be effectively ensured in service life, have wide applicability.
Description of the drawings
Fig. 1 is the utility model structure diagram
In figure：The outer mould bodies of 1-, 2- bipyramids compression section, the first compression sections of 3-, the second compression sections of 4-, 5- entrances, 6- go out
Mouth section, 7- profiled sections.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing, to the technical scheme in the embodiment of the utility model
It is clearly and completely described, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than complete
The embodiment in portion.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
All other embodiments obtained are put, shall fall within the protection scope of the present invention.
It is as shown in Figure 1 the utility model structure diagram, a kind of bipyramid drawing die, the inner wall of outer mould body 1 is in double
Taper, bipyramid contact-segment are bipyramid compression section 2, and bipyramid compression section 2 is divided for the first compression section 3 and the second compression section 4, the first pressure
Contracting section 3 is close to entrance 5, and the second compression section 4 is close to outlet section 6.The present embodiment is also between 6 and second compression section 4 of outlet section
Profiled section 7 is provided with, can so cause steel pipe before outlet is reached and shaping is completed, further ensure product quality.
The angle of the entrance 5 and outlet section 6 is all greater than the whole angle of bipyramid compression section 2.
Described to promote the service life of drawing die to further reduce the drawing dynamics of drawing die, the present embodiment is by
The angle [alpha] of one compression section is arranged to 23 degree to 25 degree, by the angle of the second compression section（Taper）β is arranged to 11 degree to 13 degree.
Structure of the utility model by changing existing product changes traditional structure in combination with rational drawing angle
Mode further increases a compression section so that product lubricant effect is more preferable, and outer molding pressure smaller service life is longer, product
Quality higher.The cost in production and processing is thus created a further reduction, the economic benefit of enterprise is improved, also changes biography
System steel pipe drawing mould only needs first compression to can reach steel pipe basic production requirement, and repeatedly compression is carried out either without necessity
Repeatedly compression can be because compression travel be elongated, and the longer operating personnel of stroke are less susceptible to the dynamics of control drawing, so as to cause production
The technology prejudice that quality declines.
By largely putting into practice, show in use：When the angle beta of the second compression section is arranged to 12 degree, by
When the angle [alpha] of one compression section is arranged to 24 degree, lubricant effect is increased dramatically, and pulling capacity is reduced by about 10% compared with original structure；Outside
The mould service life can improve about 14%.Therefore the lubricity of drawing die can be effectively promoted, extend external mold service life, promote tube quality.
To above-mentioned the disclosed embodiments illustrate, enable professional and technical personnel in the field realize or using this practicality newly
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (4)
1. a kind of bipyramid drawing die, which is characterized in that including outer mould body, the outer mould body is divided into entrance, bipyramid compression
Section and outlet section, the bipyramid compression section are divided into the angle of the first compression section and the second compression section, the entrance and outlet section
Both greater than compression section angle, first compression section angle [alpha] are 23 ° -25 °, and the second compression section angle beta is 11 ° -13 °.
2. bipyramid drawing die according to claim 1, which is characterized in that first compression section angle [alpha] is 24 °.
3. bipyramid drawing die according to claim 1 or 2, which is characterized in that the angle beta of second compression section is 12 °.
4. bipyramid drawing die according to claim 3, which is characterized in that also set between second compression section and outlet section
It is equipped with profiled section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483697.8U CN207414034U (en) | 2017-11-09 | 2017-11-09 | A kind of bipyramid drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483697.8U CN207414034U (en) | 2017-11-09 | 2017-11-09 | A kind of bipyramid drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207414034U true CN207414034U (en) | 2018-05-29 |
Family
ID=62308274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721483697.8U Expired - Fee Related CN207414034U (en) | 2017-11-09 | 2017-11-09 | A kind of bipyramid drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207414034U (en) |
-
2017
- 2017-11-09 CN CN201721483697.8U patent/CN207414034U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 |