CN103157931B - Test device and test method for simulating welding of tubing under effect of molding binding force - Google Patents
Test device and test method for simulating welding of tubing under effect of molding binding force Download PDFInfo
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- CN103157931B CN103157931B CN201310110355.1A CN201310110355A CN103157931B CN 103157931 B CN103157931 B CN 103157931B CN 201310110355 A CN201310110355 A CN 201310110355A CN 103157931 B CN103157931 B CN 103157931B
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Abstract
The invention discloses a test device and a test method for simulating welding of tubing under the effect of molding binding force. The test device for simulating the welding of the tubing under the effect of the molding binding force is composed of a right limiting vertical roller, a right limiting vertical roller lead screw adjustment mechanism, a conveying mechanism, a guiding mechanism, a right clamping vertical roller, a right clamping vertical roller lead screw adjustment mechanism, a welding device, a lower compression roller, a compression lead screw adjustment system I, an upper supporting roller I, an upper supporting roller lead screw adjustment system I, a cushion roller, a cushion roller lead screw adjustment mechanism, an upper supporting roller II lead screw adjustment mechanism, a base, a left limiting vertical roller, a left limiting vertical roller lead screw adjustment mechanism, a left clamping vertical roller, a left clamping vertical roller lead screw adjustment mechanism, an upper supporting roller II lead screw adjustment system, and an upper supporting roller I left lead screw adjustment system. The device is capable of simulating a welding process of manufacturing welded tube under the conditions of different degrees of binding force, unfitness of butt joint, and joint clearance which are caused by molding.
Description
Technical field:
The invention belongs to welded tube and manufacture field, relate to a kind of simulation tubing soldering test method and device under shaping binding force effect.
Background technology:
Welded Pipe Production Process adopts the welding methods such as submerged-arc welding, TIG weldering and Plasma Welding to weld after sheet material continuous crisping being made pipe by former.Because the effect of forming force makes weld create larger binding force in tube forming process.
Binding force causes welding stress to cause one of major reason of weld defect and malformation.Such as spiral submerged welded pipe, its production process is the three roll bending plate principles that make use of former, on the steel band acting on operation by placing obstacles at unit, under the effect of moment of flexure, make steel plate internal layer be squeezed, outer Tensile, distortion is expanded inwards by surface, reach plasticity or elastic-plastic deformation, and carry out submerged arc welding while the pipe according to certain helical angle steel band being rolled into required external diameter.Owing to being subject to the effect of shaping mechanism in production process, mother metal creates lateral compression power and produces diastrophic constraint stress perpendicular to the steel band that makes of steel strip surface.The size of constraint stress and the mode of action can cause welding seam misalignment, affect the shaping size in joint close gap and the stability of weld, thus affect weldquality, even cause the defects such as interior weldering is torn, fire check, slag inclusion, pore.Therefore, be the key of the raising quality of production to the conservative control of former place binding force in spiral submerged welded pipe is produced, also there is no special analogue means at present to this process simulation and research.
Summary of the invention:
The object of the invention is to the difficult point solving above-mentioned prior art, a kind of simulation tubing soldering test method and device under shaping binding force effect are provided.
Technical problem solved by the invention is the welding process during simulation welded tube manufactures under shaping binding force effect, studies shaping constraint stress, sheet material plastic bending deformation power and becomes groove part unfitness of butt joint size on the impact of welding process and quality.
The technical solution used in the present invention:
Simulate the experimental rig that tubing welds under shaping binding force effect, comprise base, be arranged on pan frontward end both sides right limit edger roll and left limit edger roll, the delivery mechanism being arranged on base front portion and guiding mechanism, the right clamping edger roll being arranged on both sides in the middle part of base and left clamping edger roll, be arranged on the lower compression roller of base rear portion and the upper supporting roller I of base rear end be set; Described lower compression roller front lower place is provided with pad roller, and pad roller front is provided with upper supporting roller II, and the left side of upper supporting roller II is provided with upper supporting roller III; Between described pad roller and upper supporting roller II, the top in region is provided with welder.
Described right limit edger roll is provided with right limit edger roll leading screw governor motion, left limit edger roll is provided with left limit edger roll leading screw governor motion; Described right clamping edger roll is provided with right clamping edger roll leading screw governor motion, left clamping edger roll is provided with left clamping edger roll leading screw governor motion; Described lower compression roller two ends are provided with left and right and compress leading screw governor motion; The right-hand member of described upper supporting roller I is provided with the right leading screw governor motion of upper supporting roller I, and the left end of upper supporting roller I is provided with the left leading screw governor motion of upper supporting roller I; Described pad roller lower end is provided with pad roller leading screw governor motion; Described upper supporting roller II lower end is provided with upper supporting roller II leading screw governor motion; Described upper supporting roller III lower end is provided with upper supporting roller III leading screw governor motion; Described delivery mechanism comprises by hydraulically powered delivery roller, and the roll forming of delivery roller is two date core shaped structures, delivery roller 0.5mm larger than both sides with sheet material center superposition section diameter; Described guiding mechanism comprises left guide plate and right guide plate, and left guide plate and right guide plate are all equipped with multiple guide roller, and guide plate is arranged on the top of sheet material and is arranged on upper supporting roller III front.
Having circular groove in the middle part of described lower compression roller, in bending deformation process, producing inside mouth of fainting for preventing sheet edge.
Described pad roller is cambered surface roller, its arc radius R2 is less than circular groove cambered surface radius R1 in the middle part of lower compression roller, pad roller is by leading screw governor motion adjustment level height, producing a pre-jacking force at weld prevents sheet edge from BENDING PROCESS, producing outside mouth of fainting, and pad roller and lower compression roller centre-to-centre spacing are greater than and pad roller radius.
Described upper supporting roller II and delivery roller distance are more than 3 times of spacing edger roll and delivery roller distance, to guarantee that clamping edger roll has effective clamping and guide effect to sheet material, thus effectively change over the size of weld groove part gap and side direction binding force.
Described upper supporting roller I regulates the distance between upper supporting roller I and upper supporting roller II, upper supporting roller III by upper supporting roller I right leading screw governor motion and the left leading screw governor motion of upper supporting roller I, thus changes the binding force that sheet material bending deformation quantity and flexural deformation produces.
Based on the test method of described experimental rig, in accordance with the following steps:
(1) material loading: by parallel with left side sheet material for right side sheet material feeding delivery mechanism, sent into continuously in experimental rig by delivery roller, in the process by right limit edger roll leading screw governor motion adjustment right limit edger roll position, left limit edger roll leading screw governor motion adjustment left limit edger roll position, guarantee in sheet material level, parallel feeding delivery mechanism;
(2) side direction binding force applies: adjust right clamping edger roll position by right clamping edger roll leading screw governor motion, left clamping edger roll leading screw governor motion adjusts left clamping edger roll position, sheet material and left side sheet material apply side direction clamping force to the right, thus weld is applied to a certain size side direction binding force, be embodied as the adjustment of groove part weld gap size simultaneously;
(3) flexural deformation power applies: by three bending metamorphosis of lower compression roller, upper supporting roller I, upper supporting roller II, upper supporting roller III, right side sheet material and left side sheet material is occured bending and deformation, makes weld produce certain flexural deformation binding force;
(4) unfitness of butt joint regulates: by the level height of upper supporting roller II leading screw governor motion adjustment upper supporting roller II, the level height of upper supporting roller III leading screw governor motion adjustment upper supporting roller III, make right side sheet material and left side sheet edge be in different level heights, thus form a certain amount of misalignment at weld;
(5) weld: side direction binding force and bending binding force and a certain amount of misalignment will be produced by regulating above in sheet material butt welding place; Adopt welder to weld weld, whole process of the test sheet material is sent continuously, thus reaches the object of simulation welding.
Described be welded as submerged arc welding, TIG welding or Plasma Welding.
The present invention is sent continuously parallel for two sheet material by delivery mechanism, in delivery process, guarantee that sheet material level is sent into by the left and right spacing edger roll position of adjustment.Sheet material by left and right clamping edger roll clamping sheet material, applies certain side direction binding force to sheet material weld, changes the shaping gap size of weld simultaneously by clamping force size in continuous delivery process; Form three roll bending plate principles act on sheet material by adjustment lower compression roller, upper supporting roller I, upper supporting roller II, upper supporting roller III position, make sheet material produce certain flexural deformation, thus on sheet material weld, apply a certain size bending contained active force; Make weld sheet edge produce different level heights by the level height adjusting upper supporting roller II and upper supporting roller III and form a certain amount of misalignment; By regulating the binding force producing side direction binding force and a certain amount of misalignment and produce because of flexural deformation above at weld; Weld with this understanding, reach the simulation of welded condition in Welded Pipe manufacture process.
Beneficial effect acquired by the present invention is:
Can be studied in welded tube manufacture by this device, the one-tenth groove part group of different size constraint stress and different size is to welding process when gap, unfitness of butt joint.Beneficial effect acquired by it is as follows:
1) impact of side direction binding force size on welding process and weldquality can be studied;
2) impact of the binding force size butt welded seam quality that sheet material flexural deformation in forming process causes can be studied;
3) impact of unfitness of butt joint size butt welded seam quality can be studied;
4) impact of shaping gap size on welding process and weldquality can be studied.
Accompanying drawing illustrates:
Fig. 1 is the side schematic view of soldering test device of the present invention;
Fig. 2 is the top view of soldering test device of the present invention;
Fig. 3 is delivery roller roll forming figure in soldering test device;
Fig. 4 is lower compression roller roll forming figure in soldering test device;
Fig. 5 pads roller roll forming figure in soldering test device;
Wherein: 1 is right limit edger roll; 2 is delivery mechanism; 3 is guiding mechanism; 4 is right clamping edger roll; 5 is welder; 6 is lower compression roller; 7 lower compression roller right compression leading screw governor motion; 8 is right side sheet material; 9 is upper supporting roller I; 10 is the right leading screw governor motion of upper supporting roller I; 11 is pad roller; 12 is pad roller leading screw governor motion; 13 is upper supporting roller II leading screw governor motion; 14 is upper supporting roller II; 15 is right clamping edger roll leading screw governor motion; 16 is base; 17 is right limit edger roll leading screw governor motion; 18 is left limit edger roll; 19 is left limit edger roll leading screw governor motion; 20 is delivery roller; 21 is left guide plate; 22 is right guide plate; 23 is left clamping edger roll; 24 is left clamping edger roll leading screw governor motion; 25 is upper supporting roller III; 26 lower compression roller left compression leading screw governor motion; 27 is the left leading screw governor motion of upper supporting roller I; 28 is left side sheet material; 29 is upper supporting roller III leading screw governor motion.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1-5, the present invention includes right limit edger roll, right limit edger roll leading screw governor motion, delivery mechanism, guiding mechanism, right clamping edger roll, right clamping edger roll leading screw governor motion, welder, lower compression roller, compress leading screw governor motion I, upper supporting roller I, upper supporting roller leading screw adjustment System I, pad roller, pad roller leading screw governor motion, upper supporting roller II upper supporting roller II leading screw governor motion, base, left limit edger roll, left limit edger roll leading screw governor motion, left clamping edger roll, left clamping edger roll leading screw governor motion, the left leading screw governor motion of upper supporting roller III lower compression roller, the left leading screw governor motion of upper supporting roller I,
Described guiding mechanism is made up of left guide plate, right guide plate, multiple guide roller guide plate is equipped with, and evenly send in the horizontal direction with the common guiding sheet metal of carrying roller installed on base, can effectively prevent the delivery rate that causes the sheet material discounting phenomenon that the resistance that delivery process produces causes because of front sheet material flexural deformation unstable;
Described delivery mechanism adopts hydraulic drive, by upper and lower two pressure roller transmissions, sheet material is forwarded continuously with certain speed, delivery mechanism pressure at both sides can regulate separately, thus delivery roller can be changed respectively be applied to power of sending size on two sheet materials, to guarantee that two sheet material delivery rate can be adjusted to unanimously, delivery roller roll forming is two date core shaped structures, its 0.5mm larger than both sides diameter with the part of sheet material center superposition, the power of sending that delivery roller is applied in the middle part of sheet material is greater than sending power thus effectively preventing sheet material sideslip in sheet edge applying, ensure that sheet material level is sent to,
Have circular groove in the middle part of described lower compression roller, can prevent sheet edge from bending deformation process, producing inside mouth of fainting;
Described pad roller is cambered surface roller, its arc radius R2 is less than circular groove cambered surface radius R1 in the middle part of lower compression roller, pad roller is by leading screw governor motion adjustment level height, producing a pre-jacking force at weld prevents sheet edge from BENDING PROCESS, producing outside mouth of fainting, and pad roller and lower compression roller centre-to-centre spacing are greater than and pad roller radius;
Described upper supporting roller II and delivery roller distance are more than 3 times of spacing edger roll and delivery roller distance, to guarantee that clamping edger roll has effective clamping and guide effect to sheet material, thus effectively change over the size of weld groove part gap length and side direction binding force;
Described upper supporting roller I regulates the distance between upper supporting roller II by upper supporting roller I right leading screw governor motion and the left leading screw governor motion of upper supporting roller I, thus changes the size of flexural deformation power suffered by sheet material bending deformation quantity adjustment sheet material.
This device experiment process is as follows:
1) material loading: by parallel with left side sheet material for right side sheet material feeding delivery mechanism, sent into continuously in experimental rig by delivery roller, adjust spacing edger roll position respectively by right limit edger roll leading screw governor motion, left limit edger roll leading screw governor motion in the process and guarantee sheet material level, parallel feeding;
2) side direction binding force applies: adjust right clamping edger roll, left clamping edger roll position by right clamping edger roll leading screw governor motion and left clamping edger roll leading screw governor motion, sheet material and left side sheet material apply side direction clamping force to the right, obtain a certain size side direction binding force at weld, be adjusted to groove part gap length simultaneously;
3) flexural deformation power applies: by three bending metamorphosis sheet material and the left side sheet material applying flexural deformation to the right of lower compression roller, upper supporting roller I, upper supporting roller II, upper supporting roller III, thus apply certain flexural deformation binding force at weld;
4) unfitness of butt joint regulates: by the level height of upper supporting roller II leading screw governor motion, upper supporting roller III leading screw governor motion adjustment upper supporting roller II and upper supporting roller III, make jack-up between two boards material that certain change highly occur, thus produce a certain amount of misalignment at weld;
5) weld: side direction and bending binding force and a certain amount of misalignment will be produced by regulating above in sheet material butt welding place, welder is adopted to weld in the continuous delivery process of sheet material, the optional submerged arc welding of welding manner, TIG welding, Plasma Welding etc.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when the method and technology contents that can utilize above-mentioned announcement are made a little change or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, still belong in the scope of technical solution of the present invention.
Claims (7)
1. simulate the experimental rig that tubing welds under shaping binding force effect, it is characterized in that: comprise base, be arranged on the right limit edger roll of pan frontward end both sides and left limit edger roll, the delivery mechanism being arranged on base front portion and guiding mechanism, the right clamping edger roll being arranged on both sides in the middle part of base and left clamping edger roll, be arranged on the lower compression roller of base rear portion and the upper supporting roller I of base rear end is set; Described lower compression roller front lower place is provided with pad roller, and pad roller front is provided with upper supporting roller II, and the left side of upper supporting roller II is provided with upper supporting roller III; Between described pad roller and upper supporting roller II, the top in region is provided with welder.
2. experimental rig as claimed in claim 1, is characterized in that: described right limit edger roll is provided with right limit edger roll leading screw governor motion, left limit edger roll is provided with left limit edger roll leading screw governor motion; Described right clamping edger roll is provided with right clamping edger roll leading screw governor motion, left clamping edger roll is provided with left clamping edger roll leading screw governor motion; Described lower compression roller two ends are provided with left and right and compress leading screw governor motion; The right-hand member of described upper supporting roller I is provided with the right leading screw governor motion of upper supporting roller I, and the left end of upper supporting roller I is provided with the left leading screw governor motion of upper supporting roller I; Pad roller leading screw governor motion is provided with bottom described pad roller; Upper supporting roller II leading screw governor motion is provided with bottom described upper supporting roller II; Upper supporting roller III leading screw governor motion is provided with bottom described upper supporting roller III; Described delivery mechanism comprises by hydraulically powered delivery roller, and the roll forming of delivery roller is two date core shaped structures, delivery roller 0.5mm larger than both sides with sheet material center superposition section diameter; Described guiding mechanism comprises left guide plate and right guide plate, and left guide plate and right guide plate are all equipped with multiple guide roller, and guide plate is arranged on the top of sheet material and is arranged on upper supporting roller III front.
3. experimental rig as claimed in claim 2, is characterized in that: have circular groove in the middle part of described lower compression roller, producing inside mouth of fainting for preventing sheet edge in bending deformation process.
4. experimental rig as claimed in claim 2, it is characterized in that: described pad roller is cambered surface roller, its arc radius R2 is less than circular groove cambered surface radius R1 in the middle part of lower compression roller, pad roller is by leading screw governor motion adjustment level height, producing a pre-jacking force at weld prevents sheet edge from BENDING PROCESS, producing outside mouth of fainting, and pad roller and lower compression roller centre-to-centre spacing are greater than and pad roller radius.
5. experimental rig as claimed in claim 2, it is characterized in that: described upper supporting roller II and delivery roller distance are more than 3 times of spacing edger roll and delivery roller distance, to guarantee that clamping edger roll has effective clamping and guide effect to sheet material, thus effectively change the size that weld becomes groove part degree of tightness and side direction binding force.
6. experimental rig as claimed in claim 2, it is characterized in that: described upper supporting roller I regulates the distance between upper supporting roller I and upper supporting roller II by upper supporting roller I right leading screw governor motion and the left leading screw governor motion of upper supporting roller I, thus change flexural deformation power suffered by sheet material bending deformation quantity, adjustment sheet material.
7., based on the test method of experimental rig described in claim 2,3,4,5 or 6, it is characterized in that, in accordance with the following steps:
(1) material loading: by parallel with left side sheet material for right side sheet material feeding delivery mechanism, sent into continuously in experimental rig by delivery roller, in the process by right limit edger roll leading screw governor motion adjustment right limit edger roll position, left limit edger roll leading screw governor motion adjustment left limit edger roll position, guarantee in sheet material level, parallel feeding delivery mechanism;
(2) side direction binding force applies: adjust right clamping edger roll position by right clamping edger roll leading screw governor motion, left clamping edger roll leading screw governor motion adjusts left clamping edger roll position, sheet material and left side sheet material apply side direction clamping force to the right, thus obtain a certain size side force and the shaping gap of different size at weld;
(3) flexural deformation power applies: by three bending metamorphosis of lower compression roller, upper supporting roller I, upper supporting roller II, upper supporting roller III, right side sheet material and left side sheet material is occured bending and deformation, thus applies certain flexural deformation binding force at weld;
(4) unfitness of butt joint regulates: by the level height of upper supporting roller II leading screw governor motion adjustment upper supporting roller II, the level height of upper supporting roller III leading screw governor motion adjustment upper supporting roller III, make right side sheet material and left side sheet edge be in different level heights, form a certain amount of misalignment at weld;
(5) weld: side direction binding force and bending binding force and a certain amount of misalignment will be produced by regulating above in sheet material butt welding place; Welded weld by welder subsequently, whole process of the test sheet material is sent continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310110355.1A CN103157931B (en) | 2013-04-01 | 2013-04-01 | Test device and test method for simulating welding of tubing under effect of molding binding force |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310110355.1A CN103157931B (en) | 2013-04-01 | 2013-04-01 | Test device and test method for simulating welding of tubing under effect of molding binding force |
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| CN103157931A CN103157931A (en) | 2013-06-19 |
| CN103157931B true CN103157931B (en) | 2015-05-13 |
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| CN201310110355.1A Active CN103157931B (en) | 2013-04-01 | 2013-04-01 | Test device and test method for simulating welding of tubing under effect of molding binding force |
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| CN104741852B (en) * | 2015-03-19 | 2016-05-25 | 江苏大学 | A kind of deck of ship soldering test adjustable clamp |
| CN105171306A (en) * | 2015-08-10 | 2015-12-23 | 马鞍山市盈天钢业有限公司 | Pneumatic compressing working table |
| CN106392466B (en) * | 2016-08-25 | 2018-05-15 | 宝鸡石油钢管有限责任公司 | A kind of multifunction board plate welding analog experimental rig |
| CN108723631B (en) * | 2018-06-21 | 2020-07-14 | 天津大学 | Method for determining cracking mechanism of pipe welding joint based on rigidity adjustable constraint test |
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| JPH04167918A (en) * | 1990-10-29 | 1992-06-16 | Nisshin Steel Co Ltd | Method for controlling tension and transferring speed on manufacturing time of thin wall tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04167918A (en) * | 1990-10-29 | 1992-06-16 | Nisshin Steel Co Ltd | Method for controlling tension and transferring speed on manufacturing time of thin wall tube |
| JPH10113702A (en) * | 1996-10-11 | 1998-05-06 | Nippon Steel Corp | Method and device for flying working of hot material |
| JP3778007B2 (en) * | 2001-06-06 | 2006-05-24 | 日産自動車株式会社 | Blank material gap straightening device |
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Effective date of registration: 20181024 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Baoji Petroleum Steel Pipe Co., Ltd. Patentee after: China Petroleum and Natural Gas Group Co., Ltd. Address before: 721008 jiangtan Road, Baoji, Shaanxi 10 Patentee before: Baoji Petroleum Steel Pipe Co., Ltd. |