CN205183360U - Arc channels into tube drawing mould - Google Patents
Arc channels into tube drawing mould Download PDFInfo
- Publication number
- CN205183360U CN205183360U CN201520829721.3U CN201520829721U CN205183360U CN 205183360 U CN205183360 U CN 205183360U CN 201520829721 U CN201520829721 U CN 201520829721U CN 205183360 U CN205183360 U CN 205183360U
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- CN
- China
- Prior art keywords
- arc
- entrance
- welding bell
- length
- sizing section
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/06—Dies; Selection of material therefor; Cleaning thereof with adjustable section
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Metal Extraction Processes (AREA)
Abstract
The utility model discloses an arc channels into tube drawing mould that the relevant parameter of entrance all can quantify, include: the tube drawing calligraphy or painting model body, set up on this tube drawing calligraphy or painting model body run through the tube drawing calligraphy or painting model body draw the shaping hole, should draw the shaping hole including linking up entrance, changeover portion and sizing section in proper order mutually, the sizing section is the cylinder hole, and the diameter is d1, and length an accounts for tube drawing calligraphy or painting model height degree H's 13~12, the changeover portion be the bell mouth, its tapering angle is alpha, its length b do 13~12 of the length of sizing section, the entrance be the arc entrance hole, the outside of this arc entrance hole is d2 along the diameter of circular arc line, its length is e, then: the radius (img file='DDA0000828645130000011. TIF'wi='678'he='230' /) of the generating line of this arc entrance hole arcwall face the utility model discloses mainly used is with the round -shaped metal tube undergauge.
Description
Technical field
The drawing that the utility model relates in Metal Forming technical field is shaping, refers more particularly to the welding bell of circular pipe undergauge.
Background technology
Important fixture component when drawing mould is cold-drawn various metal tube, be widely used in various metal pipe material reducing or/and distortion production process in.For steel pipe, utilize drawing die to carry out cold drawn forming to steel pipe, have that stock utilization is high, energy consumption is low, properties of product are excellent, production efficiency is high and the feature such as with low cost.In drawing mould, the tubing cross sectional shape shaping by its drawing is different, can be divided into circular drawing mould and special-shaped drawing mould; Have linerless core by its drawing process, can be divided into again empty sinking drawing die (being called for short empty sinking mould) and lining core drawing die (being called for short lining core), lining core drawing die is matched by external mold and internal mold and jointly completes cold-drawn.In drawing industry, the external mold of empty sinking drawing die or lining core drawing die is referred to as drawing die (or being welding bell) usually.
As everyone knows, if the length of the openings of sizes of welding bell and entrance arranges unreasonable, contact area so between tubing and mould changes thereupon, there is unbalanced phenomena in the vertical and horizontal flowing of metal, thus it is second-rate to cause through the shaping round tube of its drawing, be mainly manifested in its linearity poor (exist bend in various degree), wall unevenness is even, fillet is unbalanced, size is unstable and the defect such as surface irregularity, occurs steel pipe fracture and cracking phenomena in drawing process what is more.
At present; for the design standard that welding bell is also ununified; it is all by rule of thumb that the openings of sizes of its entrance and the length of entrance are arranged; for the round tube of each model; when designing, all through repeated multiple times test, improvement, the process tested again, just ideal drawing die to can be obtained; this not only extends the process-cycle of mould, also add production cost.
Utility model content
Technical problem to be solved in the utility model is: provide all quantifiable arc of a kind of relevant parameter of its entrance to import welding bell.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of arc imports welding bell, comprise: welding bell body, welding bell body offers run through welding bell body be drawn into nibs, this is drawn into the changeover portion that nibs comprises entrance, sizing section and connection entrance and sizing section;
Described sizing section is the cylindrical hole corresponding with the external diameter of the round metal tube after draw, its diameter d
1round metal tube external diameter after=draw, the length a of this sizing section accounts for 1/3 ~ 1/2 of described welding bell body height H;
Described changeover portion is bellmouth, and one end that the aperture of bellmouth is little is connected mutually with sizing section, and large one end, aperture is connected mutually with entrance, and the length b of changeover portion is 1/3 ~ 1/2 of the length of described sizing section;
Described entrance is arc entrance hole, the diameter d of the outer edge circular arc line of this arc entrance hole
2adapt with pipe before draw, if: the taper angle of described changeover portion bellmouth is α, and the length of entrance is e,
Then: the radius of the bus of this arc entrance hole arcwall face
As a kind of preferred version, import in welding bell at described arc, the conicity angles alpha of described changeover portion bellmouth between 3 ~ 5 degree, the diameter d of the outer edge circular arc line of described arc entrance hole
2larger than the external diameter of pipe before draw 3 ~ 4 millimeters.
As a kind of preferred version, import in welding bell at described arc, the nibs that is drawn into of described welding bell body has outlet section in the arranged outside of sizing section, and this outlet section is outwardly bellmouth.
As a kind of preferred version, import in welding bell at described arc, the taper angle β of described outlet section is between 30 ~ 45 degree.
As a kind of preferred version, import in welding bell at described arc, the length c of described outlet section accounts for and is wholely drawn into 5.5 ~ 6.5% of nibs length.
As a kind of preferred version, import in welding bell at described arc, described welding bell body is cylindrical, its diameter d
3>=2d
1.
The beneficial effects of the utility model are: welding bell described in the utility model, the relevant parameter of its entrance can quantize, thus make its designing and making all very simple, so just greatly reduce the process-cycle, save production cost, and the tubing glacing flatness shaping through its draw is high, smooth outer surface, outer-diameter accuracy stable.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram that arc described in the utility model imports welding bell.
Reference numeral in figure is: 2, welding bell body, I, entrance, II, excessively section, III, sizing section, IV, outlet section.
Detailed description of the invention
Below in conjunction with accompanying drawing, describe a kind of specific embodiments arc of metal circular tube undergauge being imported welding bell described in the utility model in detail.
As shown in Figure 1, a kind of arc described in the utility model imports welding bell, comprise: welding bell body 2, welding bell body 2 offers run through welding bell body 2 be drawn into nibs, this is drawn into nibs and comprises the entrance I, changeover portion II, sizing section III and the outlet section IV that are connected mutually successively; Described sizing section III is the cylindrical hole corresponding with the external diameter of the round metal tube after draw, its diameter d
1round metal tube external diameter after=draw, the length a of this sizing section III accounts for 1/3 ~ 1/2 of described welding bell body 2 height H (being namely drawn into the length of nibs); Described changeover portion II is bellmouth, conicity angles alpha is usually between 3 ~ 5 degree, one end that the aperture of bellmouth is little is connected mutually with described sizing section III, and large one end, aperture is connected mutually with described entrance I, and the length b of described changeover portion II is 1/3 ~ 1/2 of the length of described sizing section III; Described entrance I is arc entrance hole, the diameter d of the outer edge circular arc line of this arc entrance hole
2adapt with pipe before draw, under normal circumstances, the diameter d of the outer edge circular arc line of described arc entrance hole
2larger than the external diameter of pipe before draw 3 ~ 4 millimeters, if: the length of entrance I is e,
Then: the radius of the bus of this arc entrance hole arcwall face
In the present embodiment, described outlet section IV is outwardly bellmouth, and its taper angle β is between 30 ~ 45 degree, and its length c accounts for and is wholely drawn into 5.5 ~ 6.5% of nibs length; Described welding bell body 2 is cylindrical, in order to ensure that described welding bell body 2 has enough intensity, the diameter d of welding bell body 2
3>=2d
1.
In sum, be only preferred embodiment of the present utility model, not be used for limit the utility model implement scope, all equalizations done according to shape, structure, feature and the spirit described in the utility model right change and modify, and all should be included in right of the present utility model.
Claims (6)
1. an arc imports welding bell, comprise: welding bell body, it is characterized in that: described welding bell body offers run through welding bell body be drawn into nibs, this is drawn into the changeover portion that nibs comprises entrance, sizing section and connection entrance and sizing section;
Described sizing section is the cylindrical hole corresponding with the external diameter of the round metal tube after draw, its diameter d
1round metal tube external diameter after=draw, the length a of this sizing section accounts for 1/3 ~ 1/2 of described welding bell body height H;
Described changeover portion is bellmouth, and one end that the aperture of bellmouth is little is connected mutually with sizing section, and large one end, aperture is connected mutually with entrance, and the length b of changeover portion is 1/3 ~ 1/2 of the length of described sizing section;
Described entrance is arc entrance hole, the diameter d of the outer edge circular arc line of this arc entrance hole
2adapt with pipe before draw, if: the taper angle of described changeover portion bellmouth is α, and the length of entrance is e,
Then: the radius of the bus of this arc entrance hole arcwall face
2. arc according to claim 1 imports welding bell, it is characterized in that: the conicity angles alpha of described changeover portion bellmouth between 3 ~ 5 degree, the diameter d of the outer edge circular arc line of described arc entrance hole
2larger than the external diameter of pipe before draw 3 ~ 4 millimeters.
3. arc according to claim 2 imports welding bell, it is characterized in that: the nibs that is drawn into of described welding bell body has outlet section in the arranged outside of sizing section, and this outlet section is outwardly bellmouth.
4. arc according to claim 3 imports welding bell, it is characterized in that: the taper angle β of described outlet section is between 30 ~ 45 degree.
5. arc according to claim 4 imports welding bell, it is characterized in that: the length c of described outlet section accounts for and is wholely drawn into 5.5 ~ 6.5% of nibs length.
6. import welding bell according to the arc one of claim 1 to 5 Suo Shu, it is characterized in that: described welding bell body is cylindrical, its diameter d
3>=2d
1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520829721.3U CN205183360U (en) | 2015-10-14 | 2015-10-23 | Arc channels into tube drawing mould |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510662190 | 2015-10-14 | ||
| CN2015106621908 | 2015-10-14 | ||
| CN201520829721.3U CN205183360U (en) | 2015-10-14 | 2015-10-23 | Arc channels into tube drawing mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205183360U true CN205183360U (en) | 2016-04-27 |
Family
ID=55091888
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510696357.2A Pending CN105251792A (en) | 2015-10-14 | 2015-10-23 | Arc guiding-in pipe drawing die |
| CN201520829721.3U Active CN205183360U (en) | 2015-10-14 | 2015-10-23 | Arc channels into tube drawing mould |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510696357.2A Pending CN105251792A (en) | 2015-10-14 | 2015-10-23 | Arc guiding-in pipe drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105251792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251792A (en) * | 2015-10-14 | 2016-01-20 | 江苏华程工业制管股份有限公司 | Arc guiding-in pipe drawing die |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013724A (en) * | 2018-07-19 | 2018-12-18 | 张家港华程特种材料股份有限公司 | A kind of ball spline casing cold-drawn one-time-shaped mould |
| CN109675946B (en) * | 2018-12-28 | 2023-06-16 | 张家港华程特种材料股份有限公司 | Regular octagon drawing die |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129052A (en) * | 1977-10-13 | 1978-12-12 | Fort Wayne Wire Die, Inc. | Wire drawing die and method of making the same |
| JP2012187594A (en) * | 2011-03-09 | 2012-10-04 | Kanai Hiroaki | Wire drawing die |
| CN203330270U (en) * | 2013-07-02 | 2013-12-11 | 山东墨龙石油机械股份有限公司 | Pipe end hot hole shrinkage die |
| CN203678890U (en) * | 2013-12-25 | 2014-07-02 | 隆昌山川精密焊管有限责任公司 | Hard alloy drawing die |
| CN203751013U (en) * | 2014-03-14 | 2014-08-06 | 迟洪波 | Cold-drawing outer mold and cold-drawing mold for seamless steel tube |
| CN105251792A (en) * | 2015-10-14 | 2016-01-20 | 江苏华程工业制管股份有限公司 | Arc guiding-in pipe drawing die |
-
2015
- 2015-10-23 CN CN201510696357.2A patent/CN105251792A/en active Pending
- 2015-10-23 CN CN201520829721.3U patent/CN205183360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251792A (en) * | 2015-10-14 | 2016-01-20 | 江苏华程工业制管股份有限公司 | Arc guiding-in pipe drawing die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105251792A (en) | 2016-01-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |