CN205270475U - Major diameter tubular product bending mould of colding pressing - Google Patents
Major diameter tubular product bending mould of colding pressing Download PDFInfo
- Publication number
- CN205270475U CN205270475U CN201520979445.9U CN201520979445U CN205270475U CN 205270475 U CN205270475 U CN 205270475U CN 201520979445 U CN201520979445 U CN 201520979445U CN 205270475 U CN205270475 U CN 205270475U
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- China
- Prior art keywords
- patrix
- counterdie
- mould
- die holder
- groups
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- Expired - Fee Related
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- 238000005452 bending Methods 0.000 title abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 241000446313 Lamella Species 0.000 abstract 5
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a major diameter tubular product bending mould of colding pressing. Including last mould, the same two lower moulds of structure and base, the base has the gib block along length direction, and the die holder is placed respectively on the gib block of base, and a lower mould is fixed on the base, and two lower moulds pass through the lead screw and link to each other, pin after adjusting the interval of two lower moulds, by return bend material both ends respectively with lower mould lamella arc groove separately in the ball contact, upper die base upper end links to each other with the press, the last mould lamella arc groove of lower extreme and being contacted by the return bend material, and total arc length of the arc groove of upper and lower mould lamella all is greater than by the half cycle arc length of return bend material. It goes on to change resilience value through regulation distance and pressure value, inlay the ball in the lower mould lamella, when carrying out the tubular product bending like this, arc axial displacement can be followed to tubular product, suppresses the tubular product section and is out of shape, the total arc length of upper and lower mould lamella arc groove inclusion is greater than by return bend material half cycle arc length, and the die is to the inclusion face by the return bend material, to the degree of wrinkling that shrivels of tubular product when reducing the return bend in strengthening.
Description
Technical field
The utility model relates to tubing and colds pressing brake forming equipment, especially relates to a kind of major diameter tubing and colds pressing brake forming mould.
Background technology
Along with the development various bend pipe component not only widespread use in gas, transport of liquid of modern industry, also more and more extensive in department's application such as machinery, chemical industry, nuclear power, modern ultrahigh layer building systems, build body steel megastructure for modern ultrahigh layer and adopt the large diameter steel pipe that specification is 800mm �� more than 30mm in a large number. Although now mould and method for bending pipes has a lot, but the overwhelming majority is only applicable to narrow tube, rarely have for the mould of major diameter bending pipes and method and see. At present for major diameter bending pipes common method, only heating in medium frequency bending method and bikini are colded pressing bending method, but owing to the bending minimum radius of heating in medium frequency bending method must by more than 5 times of curved tube outer diameter, and tubing has in heating place and cooling place and significantly shrivels the shortcomings such as wrinkling after adopting heating in medium frequency bending, so bikini is colded pressing, bending method more often adopts in bending pipes.
Bikini bending method composition of colding pressing is the counterdie of two indents that an indent patrix being arranged on press and two ends are placed, and driving patrix to press down by press, to realize bending pipes shaping. Existing bikini is colded pressing bending mould, mostly support counterdies by two fixing indent arcs and one press down indent arc patrix and form, and the arc length of die is generally less than or equals the unitary mould of the half cycle by bend pipe material. The deficiency of this kind of mould is: 1) two counterdies are fixed, and the adjustment of counterdie spacing is inconvenient, by regulating force value to regulate, bend pipe can only can be caused so impression, impression easily occur when bending rebound quantity is colded pressing in adjustment; 2) when die cambered surface bag closes bending pipes, tubing can not arcuately move axially, and the tubing after bending easily produces cross section deformation; 3) the bag conjunction face of tubing is less than or equals half cycle by the cambered surface of die, is easy to cause bending tubing to shrivel so wrinkling.
Practical novel content
In order to overcome the deficiency that background technology exists, the purpose of this utility model is to provide a kind of major diameter tubing to cold pressing brake forming mould, can be used for bending pipes, mobile finishing of bending and bend, bend the tubing of caliber scope at 500mm��1500mm, realize counterdie spacing adjustable, during bending pipes, bend pipe can not shrivel wrinkling, and tubing can arcuately move axially and can bend out the tubing that bending quality is good, precision is high and cold pressing brake forming mould.
In order to reach foregoing invention object, the technical solution adopted in the utility model is:
The utility model comprises patrix, two counterdies that structure is identical and base; A counterdie is equipped with at base two ends respectively, and the upper die holder upper end of patrix is connected with press, and the lower end circular arc groove of the upper die holder of patrix contacts with by bend pipe material, is contacted with the upper die holder upper end circular arc groove of respective counterdie respectively by bend pipe material two ends.
Patrix: comprise die holder, two groups of multi-disc patrix mould lobes that structure is identical, many patrix bearing pins and two patrix long pin shaft; The side of two groups of multi-disc patrix mould lobes has circular arc groove, two groups of multi-disc patrix mould lobes with many patrix pinned connection together, another side of two groups of multi-disc patrix mould lobes embeds in the groove separately of the lower end both sides of die holder respectively, hinged by respective patrix long pin shaft and upper die holder, upper die holder upper end is connected with press;
Two counterdies: include multiple ball, many counterdie bearing pins, two groups of multi-disc counterdie mould lobes that structure is identical, two counterdie long pin shaft, lower template, lower die holder, axle, many springs and two pieces of spring plates; The side of two groups of multi-disc counterdie mould lobes has circular arc groove, multiple ball all it is embedded with in the circular arc groove of every sheet counterdie mould lobe, two groups of multi-disc counterdie mould lobes with many patrix pinned connection together, another side of two groups of multi-disc counterdie mould lobes embeds in the groove separately of both sides, lower template upper end respectively, hinged by respective counterdie long pin shaft and lower template, the lower end of lower template is hinged by axle and lower die holder, two pieces of spring plates are fixed on counterdie mould lobe group bottom surface, both sides, many springs are placed in the spring groove of lower template and contact with two pieces of spring plates, make the energy folding automatically of counterdie mould lobe group;
Base has many guiding bars on along its length, the lower die holder of two counterdies is placed on many guiding bars of the both sides of base respectively, a counterdie is fixed on base, two counterdies are connected by leading screw, regulated the spacing of two counterdies by the rotation of leading screw, leading screw pins after having locking latches to regulate spacing.
Total arc length of the circular arc groove of described patrix and the circular arc groove of counterdie is all greater than by the half cycle arc length of bend pipe material.
The sheet number of two groups of multi-disc patrix mould lobes of described patrix is identical.
The sheet number of two groups of multi-disc counterdie mould lobes of described two counterdies is identical.
The useful effect that the utility model has is:
1) a counterdie base and leading screw and locking mechanism is designed, counterdie is placed on base, two counterdies can distance between regulated quantity two counterdie as required, this calibration result produced when being equivalent to tubing bending with identical bending force is different, namely can change springback capacity by adjustable range and force value. And when carrying out tubing tip bend, distance adjustment between two counterdies smaller, material can be saved, when carrying out middle portion and be bending, the distance between two counterdies can be regulated larger, and such distance value is big, and force value just can be turned down relatively, curved tube surfaces quality out good, it is not easy to occur impression and impression phenomenon.
2) when designing counterdie, counterdie inner concave being designed to the structure that can slide, namely inlays ball in counterdie mould lobe, like this when carrying out bending pipes, tubing can arcuately move axially, it is possible to suppresses tubing cross section deformation.
3) upper and lower mould designed is made up of more than two lobes movable inclusion structure, and bag closes total arc length and is greater than by bend pipe material half cycle arc length, and design can strengthen interior die and close face to by the bag of bend pipe material like this, during reduction bend pipe tubing is shriveled wrinkling degree.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
Fig. 2 is upper die structure schematic diagram of the present utility model.
Fig. 3 is lower die structure schematic diagram of the present utility model.
Fig. 4 is lower die structure part sectioned view of the present utility model.
In figure: 1, patrix, 2, counterdie, 3, base, 4, upper die holder, 5, patrix mould lobe, 6, patrix bearing pin, 7, patrix long pin shaft, 8, ball, 9, counterdie bearing pin, 10, counterdie mould lobe, 11, counterdie long pin shaft, 12, lower template, 13, lower die holder, 14, axle, 15, spring, 16, spring plate, 17, by bend pipe material, 18, leading screw.
Embodiment
Below in conjunction with drawings and Examples, to doing, the utility model illustrates further.
As shown in Figure 1, the utility model comprises patrix 1, two counterdies 2 that structure is identical and base 3; A counterdie 2 is equipped with at base 3 two ends respectively, and upper die holder 4 upper end of patrix 1 is connected with press, and the upper die holder of patrix 14 times end circular arc grooves contact with by bend pipe material 18, is contacted with the upper die holder 4 upper end circular arc groove of respective counterdie 2 respectively by bend pipe material 18 two ends.
As shown in Figure 1, patrix 1: comprise die holder 4, two groups of multi-disc patrix mould lobes 5 that structure is identical, many patrix bearing pins 6 and two patrix long pin shaft 7; The side of two groups of multi-disc patrix mould lobes 5 has circular arc groove, two groups of multi-disc patrix mould lobes 5 link together with many patrix bearing pins 6, another side of two groups of multi-disc patrix mould lobes 5 embeds in the groove separately of die holder 4 times end both sides respectively, hinged with upper die holder 4 by respective patrix long pin shaft 7, upper die holder 4 upper end is connected with press.
As shown in Figure 3, Figure 4, two counterdies 2: include multiple ball 8, many counterdie bearing pins 9, two groups of multi-disc counterdie mould lobes, 10, two counterdie long pin shaft 11 that structure is identical, lower template 12, lower die holder 13, axle 14, many springs 15 and two pieces of spring plates 16, the side of two groups of multi-disc counterdie mould lobes 10 has circular arc groove, multiple ball 8 all it is embedded with in the circular arc groove of every sheet counterdie mould lobe 10, two groups of multi-disc counterdie mould lobes 10 link together with many patrix bearing pins 6, another side of two groups of multi-disc counterdie mould lobes 10 embeds in the groove separately of both sides, lower template 12 upper end respectively, hinged with lower template 12 by respective counterdie long pin shaft 11, the lower end of lower template 12 is hinged by axle 14 and lower die holder 13, two pieces of spring plates 16 are fixed on counterdie mould lobe group bottom surface, both sides, many springs 15 are placed in the spring groove of lower template 12 and contact with two pieces of spring plates 16, make the energy folding automatically of counterdie mould lobe group.
As shown in Figure 1, base 3 has many guiding bars on along its length, the lower die holder 13 of two counterdies 2 is placed on many guiding bars of the both sides of base 3 respectively, a counterdie 2 is fixing on the base 3, two counterdies 2 are connected by leading screw 18, regulated the spacing of two counterdies 2 by the rotation of leading screw 18, leading screw 18 pins after having locking latches to regulate spacing.
Total arc length of the circular arc groove of described patrix mould lobe and the circular arc groove of counterdie mould lobe is all greater than by the half cycle arc length of bend pipe material 18.
The sheet number of two groups of multi-disc patrix mould lobes 5 of described patrix 1 is identical, and the sheet number of two groups of multi-disc patrix mould lobes 5 can set as required.
The sheet number of two groups of multi-disc counterdie mould lobes 10 of described two counterdies 2 is identical, and the sheet number of two groups of multi-disc counterdie mould lobes 10 can set as required.
Principle of work of the present utility model:
Patrix 1 is connected with press by upper die holder 4, owing to two mould lobe groups of action of gravity patrix are foldings in non-working order, the effect of the automatic open-close device structure that the template group of counterdie is made up of spring 15 and spring plate 16, also it is folding condition not placing during bend pipe material 17, it is convenient to be placed by bend pipe material 17. A counterdie 2 is fixed by screws on base 3, and another counterdie 2 is fixed by the self-locking mechanism of leading screw 18.
When being placed on two counterdies 2 by bend pipe material 17, the mould lobe group of two counterdies closes under pressure, is greater than tubing half cycle bag and closes by bend pipe material 17, and bending tubing is not easy to cause to shrivel wrinkling. Patrix 1 presses down under the effect of press, when patrix mould lobe group with slowly contacted by bend pipe material 17 after closed, be greater than tubing half cycle bag and close tubing, bending tubing is not easy to cause to shrivel wrinkling. Patrix 1 continues to press down, bending pipes, twice templates 12 are due to hinged by axle 14 and lower die holder 13 simultaneously, inwardly can rotate along with the distortion of tubing when bending pipes, and owing to counterdie mould lobe 10 groove having ball 8, arcuately being moved axially when bending by power by bend pipe material 17, being not easy by bend pipe material 17 after bending produces cross section deformation.
After bending, resilience is unavoidable, the utility model counterdie can by leading screw 18 distance between regulated quantity two counterdie as required, this calibration result produced when being equivalent to tubing bending with identical bending force is different, namely can by regulating the Distance geometry force value between two counterdies to change springback capacity, and when carrying out tubing tip bend, distance adjustment between two counterdies smaller, material can be saved, when carrying out middle portion and be bending, the distance between two counterdies can be regulated larger, such distance value is big, force value just can be turned down relatively, curved tube surfaces quality out good, it is not easy that impression and impression phenomenon occur.
Claims (4)
1. major diameter tubing is colded pressing a brake forming mould, comprises patrix (1), two counterdies (2) that structure is identical and base (3); A counterdie (2) is equipped with at base (3) two ends respectively, upper die holder (4) upper end of patrix (1) is connected with press, the lower end circular arc groove of the upper die holder (4) of patrix (1) contacts with by bend pipe material (18), is contacted with upper die holder (4) the upper end circular arc groove of respective counterdie (2) respectively by bend pipe material (18) two ends; It is characterized in that:
Patrix (1): comprise die holder (4), two groups of multi-discs patrix mould lobe (5) that structure is identical, many patrix bearing pins (6) and two patrix long pin shaft (7); The side of two groups of multi-discs patrix mould lobe (5) has circular arc groove, two groups of multi-discs patrix mould lobe (5) link together with many patrix bearing pins (6), another side of two groups of multi-discs patrix mould lobe (5) embeds in the groove separately of the lower end both sides of die holder (4) respectively, hinged by respective patrix long pin shaft (7) and upper die holder (4), upper die holder (4) upper end is connected with press;
Two counterdies (2): include multiple ball (8), many counterdie bearing pins (9), two groups of multi-discs counterdie mould lobe (10) that structure is identical, two counterdie long pin shaft (11), lower template (12), lower die holder (13), axle (14), many springs (15) and two pieces of spring plates (16), the side of two groups of multi-discs counterdie mould lobe (10) has circular arc groove, multiple ball (8) all it is embedded with in the circular arc groove of every sheet counterdie mould lobe (10), two groups of multi-discs counterdie mould lobe (10) link together with many patrix bearing pins (6), another side of two groups of multi-discs counterdie mould lobe (10) embeds in the groove separately of lower template (12) both sides, upper end respectively, hinged by respective counterdie long pin shaft (11) and lower template (12), the lower end of lower template (12) is hinged by axle (14) and lower die holder (13), two pieces of spring plates (16) are fixed on counterdie mould lobe group bottom surface, both sides, many springs (15) are placed in the spring groove of lower template (12) and contact with two pieces of spring plates (16), make the energy folding automatically of counterdie mould lobe group,
Base (3) has many guiding bars on along its length, the lower die holder (13) of two counterdies (2) is placed on many guiding bars of the both sides of base (3) respectively, a counterdie (2) is fixed on base (3), two counterdies (2) are connected by leading screw (18), regulated the spacing of two counterdies (2) by the rotation of leading screw (18), leading screw (18) pins after having locking latches to regulate spacing.
2. a kind of major diameter tubing according to claim 1 is colded pressing brake forming mould, it is characterised in that: total arc length of the circular arc groove of described patrix mould lobe and the circular arc groove of counterdie mould lobe is all greater than by the half cycle arc length of bend pipe material (18).
3. a kind of major diameter tubing according to claim 1 is colded pressing brake forming mould, it is characterised in that: the sheet number of two groups of multi-discs patrix mould lobe (5) of described patrix (1) is identical.
4. a kind of major diameter tubing according to claim 1 is colded pressing brake forming mould, it is characterised in that: the sheet number of two groups of multi-discs counterdie mould lobe (10) of described two counterdies (2) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979445.9U CN205270475U (en) | 2015-12-01 | 2015-12-01 | Major diameter tubular product bending mould of colding pressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979445.9U CN205270475U (en) | 2015-12-01 | 2015-12-01 | Major diameter tubular product bending mould of colding pressing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205270475U true CN205270475U (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520979445.9U Expired - Fee Related CN205270475U (en) | 2015-12-01 | 2015-12-01 | Major diameter tubular product bending mould of colding pressing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205270475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312376A (en) * | 2015-12-01 | 2016-02-10 | 浙江大学 | Cold pressing and bending forming die of large-diameter pipe |
| CN106513510A (en) * | 2016-11-25 | 2017-03-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Small radius forming tool for large-diameter guide tube |
-
2015
- 2015-12-01 CN CN201520979445.9U patent/CN205270475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312376A (en) * | 2015-12-01 | 2016-02-10 | 浙江大学 | Cold pressing and bending forming die of large-diameter pipe |
| CN106513510A (en) * | 2016-11-25 | 2017-03-22 | 沈阳黎明航空发动机(集团)有限责任公司 | Small radius forming tool for large-diameter guide tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160601 Termination date: 20171201 |