CN204294690U - String pipe one-shot forming apparatus - Google Patents
String pipe one-shot forming apparatus Download PDFInfo
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- CN204294690U CN204294690U CN201420807425.9U CN201420807425U CN204294690U CN 204294690 U CN204294690 U CN 204294690U CN 201420807425 U CN201420807425 U CN 201420807425U CN 204294690 U CN204294690 U CN 204294690U
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- bed die
- loose tool
- die seat
- string pipe
- forming apparatus
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Abstract
The utility model provides a kind of string pipe one-shot forming apparatus; comprise mold seat, bed die seat; in described mold seat bottom surface can dismounting be connected with loose tool; loose tool under being connected with of energy dismounting in described bed die seat; described upper loose tool coordinates with described lower loose tool contraposition; be provided with at least two hydraulic pressure pattern drawing mechanisms in the bottom of described bed die seat, described hydraulic pressure pattern drawing mechanism has the expansion link vertically arranged, and described expansion link is through described bed die seat and described lower loose tool.The advantage that the utility model is convenient to replace with lower loose tool, is suitable for production different specification size string pipe, is easy to molding, registration.
Description
Technical field
The utility model relates to a kind of marine drilling platform spud leg string pipe forming technique field, particularly relates to a kind of marine drilling platform spud leg multi-specification string pipe one-shot forming apparatus.
Background technology
Lifting system of self-lifting well drilling platform tooth bar assembly, is welded to form primarily of tooth bar chord pipe.Due to the difference of ocean platform bank distance off sea, the length of spud leg also changes thereupon, thus also there is diversity requirements to the thickness of string pipe.The string pipe of current employing is yield strength is 690MPa, the technological deficiencies such as material thickness is generally the steel plate of 25mm ~ 183mm, has forming difficulty, and springback capacity is wayward.And tooth bar assembly is generally long, sometimes can reach more than 100 meter, need many string pipe welding compositions, have the engineering time long, weld seam is many, production, the more high defect of Non-Destructive Testing cost.
At present, adopt upper/lower die thermoforming process processing string pipe, but deformation is large, dimensional requirement precision is high because string pipe becomes, need large-tonnage stamping machine to carry out shaping, restrictive condition is more, can not meet production and the technological requirement of string pipe.The heat pressing and molding mold of the offshore platform spud leg string pipe thermoforming process of existing employing, adopted by thermal deformation stock large-tonnage gate-type uplifting pressure machine to carry out hot-forming, wherein heat pressing and molding mold comprises former, formpiston, described former arranges the arc working face corresponding with string pipe, described arc working face upper end is provided with format roll rod deep-slotted chip breaker, be provided with in format roll rod deep-slotted chip breaker and around the roller rod of own axis, string pipe keeper can be provided with in the upper surface of described former.But it still has some defects: be unsuitable for producing different specification size string pipe, not easily molding, string pipe machinery location is inaccurate, is unsuitable for low temperature string pipe and is shaped.
Because the limitation of above-mentioned existing string pipe forming technique, this Technology design people is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, and coordinate theoretical utilization, actively in addition research and innovation, being a kind ofly convenient to replace with lower loose tool to founding, being suitable for the string pipe one-shot forming apparatus producing different specification size string pipe, be easy to molding.
Utility model content
The purpose of this utility model is to provide a kind of string pipe one-shot forming apparatus be convenient to replace with lower loose tool, be suitable for production different specification size string pipe, be easy to molding, registration.
For achieving the above object; the utility model proposes a kind of string pipe one-shot forming apparatus; comprise mold seat, bed die seat; in described mold seat bottom surface can dismounting be connected with loose tool; loose tool under being connected with of energy dismounting in described bed die seat; described upper loose tool coordinates with described lower loose tool contraposition; at least two hydraulic pressure pattern drawing mechanisms are provided with in the bottom of described bed die seat; described hydraulic pressure pattern drawing mechanism has the expansion link vertically arranged, and described expansion link is through described bed die seat and described lower loose tool.
String pipe one-shot forming apparatus as above, wherein, the two ends of described upper loose tool and described mold seat are provided with connecting plate, and described upper loose tool is connected with the pin running through described connecting plate by connecting plate with described mold seat.
String pipe one-shot forming apparatus as above, wherein, the outer wall both sides of described bed die seat are provided with some tapped through holes, on the outer wall of described lower loose tool, corresponding described some tapped through holes are provided with some tapped blind holes, and described bed die seat is connected by the bolt of described tapped through hole with described tapped blind hole with described lower loose tool.
String pipe one-shot forming apparatus as above, wherein, the bottom of described bed die seat is connected with slide rail by bolt.
String pipe one-shot forming apparatus as above, wherein, the upper surface of described bed die seat is provided with the positive stop of restriction hot rolled steel plate movement.
String pipe one-shot forming apparatus as above, wherein, at least vertically be provided with the lead to downward-extension in side in the bottom of described mold seat, in the upper surface of described bed die seat, corresponding described lead is provided with pilot hole, and described lead can plug together in described pilot hole.
String pipe one-shot forming apparatus as above, wherein, the periphery, upper end of described lead is provided with spacing shim, and described spacing shim can be connected on the upper surface of described bed die seat of described pilot hole upper end.
String pipe one-shot forming apparatus as above, wherein, described hydraulic pressure pattern drawing mechanism is provided with 3, is separately positioned on both sides and the centre position of described bed die seat bottom.
Compared with prior art, the utility model has following characteristics and advantage:
It is high that the utility model has precision, and once-forming string pipe size is long, and for various different-thickness and radius of curvature string pipe forming requirements, only adopt a set of upper/lower die seat, decrease manufacturing cost; Loose tool, as consumable accessory, is changed fixing simple.Hydraulic mechanism molding, decreases running cost, adds the security of production.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit the utility model scope of disclosure by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping understanding of the present utility model, are not the shape and the proportional sizes that specifically limit each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shape and proportional sizes to implement the utility model as the case may be.
Fig. 1 is the structural representation of the utility model string pipe one-shot forming apparatus;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.
Description of reference numerals:
100-hot rolled steel plate; 1-mold seat; 2-bed die seat; The upper loose tool of 3-; Loose tool under 4-; 5-hydraulic pressure pattern drawing mechanism; 6-expansion link; 7-connecting plate; 8-pin; 9-tapped through hole; 10-tapped blind hole; 11-bolt; 12-slide rail; 13-bolt; 14-positive stop; 15-lead; 16-pilot hole; 17-spacing shim.
Detailed description of the invention
By reference to the accompanying drawings with the description of the utility model detailed description of the invention, can clearly understand details of the present utility model.But detailed description of the invention of the present utility model described here, only for explaining the purpose of this utility model, and can not to be understood as by any way be to restriction of the present utility model.Under instruction of the present utility model, technical staff can conceive based on distortion possible arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
Please refer to Fig. 1, Fig. 2, Fig. 1 is the structural representation of the utility model string pipe one-shot forming apparatus; Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view.
As shown in Figure 1 and Figure 2, the utility model string pipe one-shot forming apparatus, comprise mold seat 1, bed die seat 2, mold seat 1 bottom surface can dismounting be connected with loose tool 3, loose tool 4 under being connected with of energy dismounting in bed die seat 2, upper loose tool 3 coordinates with the contraposition of lower loose tool 4, to realize matched moulds function.At least two hydraulic pressure pattern drawing mechanisms 5 are provided with in the bottom of bed die seat 2; hydraulic pressure pattern drawing mechanism has the expansion link 6 vertically arranged; expansion link 6, through bed die seat 2 and lower loose tool 4, makes expansion link 6 can the string pipe of jack-up punching press matched moulds aftershaping, reaches the effect of molding.Because upper and lower loose tool belongs to vulnerable part, and in the utility model, upper loose tool 3 is removable connected mode with mold seat 1, lower loose tool 4 with bed die seat 2, therefore, it is possible to be convenient to replace with loose tool 3 and lower loose tool 4, and according to different string pipe dimensional requirements, choose the loose tool up and down of different size, realize, on same upper and lower mold base, processing the function of different size string pipe.The string tube thickness of general shaping has 28mm, and 35mm, 50mm, 83mm are several, and the size of the lower loose tool that different string tube thickness is corresponding and upper loose tool is also different.
As shown in Figure 1, in the present embodiment, the two ends of upper loose tool 3 and mold seat 1 are provided with connecting plate 7, and upper loose tool 3 is connected with the pin 8 running through connecting plate 7 by connecting plate 7 with mold seat 1, plays the effect be connected and fixed.When needs replace with loose tool 3, only the pin 8 of both sides need be unloaded, change upper loose tool 3 that is new or different specification size.Upper loose tool 3 and mold seat 1 also can adopt other removable connected modes, as long as ensure that upper loose tool 3 is convenient to dismounting with mold seat 1 bonding strength.
As shown in Figure 1, in the present embodiment, the outer wall both sides of bed die seat 2 are provided with some tapped through holes 9, on the outer wall of lower loose tool 4, corresponding some tapped through holes 9 are provided with some tapped blind holes 10, and bed die seat 2 is connected (as shown in Figure 2) by being bolted in tapped through hole 9 with the bolt 11 of tapped blind hole 10 with lower loose tool 4.When lower loose tool 4 changed by needs, only the bolt 11 of both sides need be unloaded, change lower loose tool 4 that is new or different specification size.Lower loose tool 4 and bed die seat 2 also can adopt other removable connected modes, as long as ensure loose tool 4 with bed die seat 2 bonding strength and be convenient to dismounting.
As shown in Figure 2, the bottom of bed die seat 2 is connected with slide rail 12 by bolt 13, and slide rail 12 can drive bed die seat 2 to slide certain stroke.In use, mold seat 1 is directly fixed on the entablature of large-tonnage quick forging machine, ensures installation accuracy.Bed die seat 2 bolt 13 is fixed on the slide rail 12 of quick forging machine, can as required, have the stroke of 8m to move left and right.
As shown in Figure 2, the upper surface of bed die seat 2 is provided with the positive stop 14 of restriction hot rolled steel plate 100 movement.Hot rolled steel plate 100 is placed in the upper surface of bed die seat 2, and positive stop 14 is arranged on the both sides of the upper surface of mold base 2 and tossing about of hot rolled steel plate 100 moving direction, thus play prevent steel plate produce skew.
As shown in Figure 2, in the bottom of mold seat 1, at least side is vertically provided with the lead 15 to downward-extension, and in the upper surface of bed die seat 2, corresponding lead 15 is provided with pilot hole 16, and lead 15 can plug together in pilot hole 16.When matched moulds, lead 15 matches with pilot hole 16 and plays the effect of guide-localization, thus improves closing precision, and then improves formed precision.
As shown in Figure 2, further, the periphery, upper end of lead 15 is provided with spacing shim 17, and spacing shim 17 can be connected on the upper surface of the bed die seat 2 of pilot hole 16 upper end, plays the position-limiting action to lead 15 stroke.In punching course, because stamping machine is hydraulic system, at the end of stamping stroke, due to the delay of hydraulic system response time and the lasting increase of last stamping press, certain damage can be caused to the oil cylinder of stamping machine, adopt spacing shim that the excessive oil cylinder to hydraulic system of stamping press can be avoided to cause damage.
Further, hydraulic pressure pattern drawing mechanism 5 is provided with 3, is separately positioned on both sides and the centre position of bed die seat 2 bottom, during guarantee molding more steadily smoothly.
Further, for ensureing string pipe forming accuracy, mold seat 1 adopts big cross section welded steel structure, and bed die seat 2 adopts foundry goods.
In use, string pipe adopts hot rolled steel plate, directly places on bed die seat 2, the left and right of bed die seat 2 and rear limited location block 14 with suspender, when ensureing steel plate punched, does not produce deflection.Mold seat 1 is directly fixed on the entablature of large-tonnage quick forging machine, ensures installation accuracy.Bed die seat 2 is fixed by bolts on the slide rail 12 of quick forging machine, can as required, have the stroke of 8m to move left and right.When upper and lower loose tool 3,4 punching press, locate with lead 15, when upper and lower loose tool 3,4 matched moulds, mechanical position limitation is adopted between upper and lower loose tool 3,4, prevent from damaging oil cylinder, after punching press completes, with three hydraulic cylinders (bed die seat 2 centre position and each one of both sides) the jack-up molding of bed die seat 2.
It is high that the utility model string pipe one-shot forming apparatus has precision, and once-forming string pipe size is long, and for various different-thickness and radius of curvature string pipe forming requirements, only adopt a set of upper/lower die seat, decrease manufacturing cost; Loose tool, as consumable accessory, is changed fixing simple.Hydraulic mechanism molding, decreases running cost, adds the security of production.
For the detailed explanation of the respective embodiments described above, its object is only to make an explanation to the utility model, so that the utility model can be understood better, but, it is to restriction of the present utility model that these descriptions can not become with any explanation, particularly, each feature described in various embodiments also can be combined mutually, thus form other embodiments, except there being clearly contrary description, these features should be understood to can be applied in any one embodiment, and are also not only confined to described embodiment.
Claims (8)
1. a string pipe one-shot forming apparatus; comprise mold seat, bed die seat; it is characterized in that; in described mold seat bottom surface can dismounting be connected with loose tool; loose tool under being connected with of energy dismounting in described bed die seat, described upper loose tool coordinates with described lower loose tool contraposition, is provided with at least two hydraulic pressure pattern drawing mechanisms in the bottom of described bed die seat; described hydraulic pressure pattern drawing mechanism has the expansion link vertically arranged, and described expansion link is through described bed die seat and described lower loose tool.
2. string pipe one-shot forming apparatus as claimed in claim 1, it is characterized in that, the two ends of described upper loose tool and described mold seat are provided with connecting plate, and described upper loose tool is connected with the pin running through described connecting plate by connecting plate with described mold seat.
3. string pipe one-shot forming apparatus as claimed in claim 1, it is characterized in that, the outer wall both sides of described bed die seat are provided with some tapped through holes, on the outer wall of described lower loose tool, corresponding described some tapped through holes are provided with some tapped blind holes, and described bed die seat is connected by the bolt of described tapped through hole with described tapped blind hole with described lower loose tool.
4. string pipe one-shot forming apparatus as claimed any one in claims 1 to 3, it is characterized in that, the bottom of described bed die seat is connected with slide rail by bolt.
5. string pipe one-shot forming apparatus as claimed any one in claims 1 to 3, is characterized in that, the upper surface of described bed die seat is provided with the positive stop of restriction hot rolled steel plate movement.
6. string pipe one-shot forming apparatus as claimed any one in claims 1 to 3, it is characterized in that, at least the lead to downward-extension is vertically provided with in side in the bottom of described mold seat, in the upper surface of described bed die seat, corresponding described lead is provided with pilot hole, and described lead can plug together in described pilot hole.
7. string pipe one-shot forming apparatus as claimed in claim 6, it is characterized in that, the periphery, upper end of described lead is provided with spacing shim, and described spacing shim can be connected on the upper surface of described bed die seat of described pilot hole upper end.
8. string pipe one-shot forming apparatus as claimed any one in claims 1 to 3, it is characterized in that, described hydraulic pressure pattern drawing mechanism is provided with 3, is separately positioned on both sides and the centre position of described bed die seat bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807425.9U CN204294690U (en) | 2014-12-18 | 2014-12-18 | String pipe one-shot forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807425.9U CN204294690U (en) | 2014-12-18 | 2014-12-18 | String pipe one-shot forming apparatus |
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| CN204294690U true CN204294690U (en) | 2015-04-29 |
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| CN201420807425.9U Active CN204294690U (en) | 2014-12-18 | 2014-12-18 | String pipe one-shot forming apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525642A (en) * | 2014-12-18 | 2015-04-22 | 中冶京诚工程技术有限公司 | One-time chord forming device |
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2014
- 2014-12-18 CN CN201420807425.9U patent/CN204294690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525642A (en) * | 2014-12-18 | 2015-04-22 | 中冶京诚工程技术有限公司 | One-time chord forming device |
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