CN104492870B - A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect - Google Patents

A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect Download PDF

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Publication number
CN104492870B
CN104492870B CN201410841077.1A CN201410841077A CN104492870B CN 104492870 B CN104492870 B CN 104492870B CN 201410841077 A CN201410841077 A CN 201410841077A CN 104492870 B CN104492870 B CN 104492870B
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CN
China
Prior art keywords
block
type seat
supporting
welded pipe
straightener
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Active
Application number
CN201410841077.1A
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Chinese (zh)
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CN104492870A (en
Inventor
傅前进
赵纯锋
纪庆高
刘振清
王柱
王安柱
潘登
赵栋
徐海瑛
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SHANDONG TAIFENG STEEL INDUSTRY CO LTD
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SHANDONG TAIFENG STEEL INDUSTRY CO LTD
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Priority to CN201410841077.1A priority Critical patent/CN104492870B/en
Publication of CN104492870A publication Critical patent/CN104492870A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments

Abstract

The invention discloses a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect, comprising with the hold-down devices of being inverted V-block, lower V-type seat, supporting trolley and lower supporting plate; Described hold-down devices comprises upper backup pad, rack-mounted hydraulic cylinder and inversion V-block, described upper backup pad is provided with through hole, the screw thread spindle nose of the below of hydraulic cylinder matches through the through hole on upper backup pad and the disposed thread be inverted bottom V-block, described lower supporting plate is fixed on stand, the middle part of lower supporting plate is provided with lower V-type seat, and end is provided with supporting trolley; Move downward under the drive of the piston rod of top V-block in hydraulic cylinder, act on the welded tube be placed on lower V-type seat and supporting trolley.The present invention not only effectively eliminates the bending defect of welded tube, ensures good surface of welded pipe quality, and the position simultaneously achieved by adjusting lower V-type seat can realize the aligning of the local buckling of Welded Pipe, improves the quality of processed finished products.

Description

A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect
Technical field
The present invention relates to machinery and correct special equipment field, being specifically related to a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect.
Background technology
The manufacturer of current domestic most high-frequency straight seam welded pipe; in the process of high-frequency straight seam welded pipe; often can produce the steel pipe that flexibility exceeds standard; for this kind of welded tube that there is bending defect; traditional roll leveller is normally adopted to align flexibility; but often there is slivering in the surface of welded pipe after aligning; have impact on the suface processing quality of welded tube and attractive in appearance; and the effect of aligning is not ideal enough, be therefore badly in need of a kind ofly effectively eliminating welded tube bending defect and keeping the novel straightener of suface processing quality of welded tube.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect is provided, not only effectively eliminate the bending defect of welded tube, and ensure good surface of welded pipe quality, effectively improve the quality of processed finished products.
For achieving the above object, the present invention adopts following technical proposals:
For eliminating a straightener for high-frequency straight seam welded pipe bending defect, comprising:
With being inverted the hold-down devices of V-block, lower V-type seat, supporting trolley and lower supporting plate;
Described hold-down devices comprises upper backup pad, rack-mounted hydraulic cylinder and inversion V-block, described lower supporting plate is provided with through hole, the screw thread spindle nose of the below of described hydraulic cylinder matches through the through hole on upper backup pad and the disposed thread be inverted bottom V-block, cooperative end part is fixed by locking nut, and described lower supporting plate is fixed in frame;
Described lower supporting plate is fixed on stand, and lower supporting plate is provided with lower V-type seat and supporting trolley;
Described supporting trolley is provided with mounting plate and lower shoe, described lower shoe is fixed with four groups of guide upright posts, and the middle part of described mounting plate is provided with two groups of short supporting axles;
Be inverted under the piston rod of V-block in hydraulic cylinder promote, move downward, act on and be placed on treating on lower V-type seat and supporting trolley and align welded tube.
The two ends of described upper backup pad are provided with screwed hole, are bolted in frame.
Described lower V-type seat and supporting trolley are respectively equipped with two groups, V-type seat under two groups, along top V-block vertical axis, be arranged symmetrically in the middle part of lower supporting plate, two groups of supporting trolleys, along top V-block vertical axis, are arranged symmetrically in the end of lower supporting plate, such setting, be used for ensure aligning welded tube uniform force.
The surface of described V-block and lower V-type seat is fixed with rubber blanket, is used for preventing the surface of welded pipe in straightening process from stressed damage occurring.
The V-type open surfaces of described V-block and lower V-type seat is provided with screwed hole, and described rubber blanket is separately fixed on V-block and lower V-type seat by trip bolt.Such setting, the dismounting after facilitating rubber blanket to damage and replacement.
The two ends of the upper surface of described lower V-type seat are provided with lifting bolt, the hook suspension ring below the car of lifting purlin, according to waiting the aligning position of aligning steel pipe, lower V-type seat lifting are moved to corresponding position.
The guide upright post of described supporting trolley is arranged with spring, is used for increasing the flexibility in straightening process, and after having aligned, utilizes the spring force of generation to be upspring by welded tube.
The base plate of described supporting trolley is provided with four groups of screwed holes, and the head of described four groups of guide upright posts is provided with screw thread, and the head of guide upright post is screwed into screwed hole, cooperative end part by locking nut and lock washer fastening.
The short supporting axle two ends of described supporting trolley and middle part are provided with spring bearing.By the spring bearing of rotation support shaft, the linearity rotating welded tube can be estimated.
The invention has the beneficial effects as follows, solving the slivering defect that welded tube exists because adopting roll leveller, not only effectively eliminating the bending defect of welded tube, and ensureing good surface of welded pipe quality, achieve the aligning of the local buckling of welded tube simultaneously, improve the quality of processed finished products.
Accompanying drawing explanation
Fig. 1 is the front view of structure of the present invention;
Fig. 2 is the side view of structure of the present invention;
Fig. 3 is lower V-type seat schematic diagram of the present invention;
Fig. 4 is the front view of supporting trolley of the present invention;
Fig. 5 is the side view of supporting trolley of the present invention;
Wherein 1. hydraulic cylinders, 2. frame, 3. upper backup pad, is 4. inverted V-block, 5. lower supporting plate, 6. supporting trolley, 7. descend V-type seat, 8. stand, 9. locking nut I, 10. rubber blanket, 11. lifting bolts, 12. trip bolts, 13. bearings, 14. short supporting axles, 15. mounting plates, 16. springs, 17. guide upright posts, 18. lower shoes, 19. locking nut II, 20. packing rings.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect, comprising:
With being inverted the hold-down devices of V-block, lower V-type seat 7, supporting trolley 6 and lower supporting plate 5;
Described hold-down devices comprises upper backup pad 3, be arranged on the hydraulic cylinder 1 in frame 2 and be inverted V-block 4, upper backup pad 3 is provided with through hole, the screw thread spindle nose of the below of hydraulic cylinder 1 matches through the through hole on upper backup pad 3 and the disposed thread be inverted bottom V-block 4, cooperative end part is fixed by locking nut I9, described upper backup pad 3 is fixed in frame 2, be fixed on the lower supporting plate 5 on stand 8, the middle part of lower supporting plate 5 is provided with lower V-type seat 7, the end of lower supporting plate 5 is provided with supporting trolley 6, described supporting trolley 6 is provided with mounting plate 15 and lower shoe 18, described lower shoe 18 is fixed with four groups of guide upright posts 17, the middle part of described mounting plate 15 is provided with two groups of short supporting axles 14,
The two ends of described upper backup pad 3 are provided with screwed hole, upper backup pad 3 can be fixed in frame 2 by bolt.
Piston rod in described hydraulic cylinder 1 moves downward under the drive of hydraulic system, promotes V-block 4 and moves downward, and acts on and waits to align welded tube.
Described lower V-type seat 7 and supporting trolley 6 are respectively equipped with two groups, are arranged on lower supporting plate 5, and are arranged symmetrically with the both sides of vertical axis of being inverted V-block 4 up, are used for ensureing the uniform force of aligning welded tube.
As shown in Figure 3, the surface of being inverted V-block 4 and lower V-type seat 7 is fixed with rubber blanket 10, is used for preventing the surface of welded pipe in straightening process from stressed damage occurring.
The V-type open surfaces of described lower V-type seat 7 is provided with some screwed holes, and described rubber blanket 10 is fixed on lower V-type seat 7 through corresponding screwed hole by trip bolt 12.Such setting, realizes the fixing of rubber blanket, and facilitates the dismounting after rubber blanket damage and replacement.Be inverted V-block 4 to arrange too, repeat no more.
The both sides, top of described lower V-type seat 7 are provided with lifting bolt 11, the hook suspension ring below the car of lifting purlin, according to waiting the aligning position of aligning steel pipe, lower V-type seat 7 lifting are moved to corresponding position.
As shown in Figure 4, the lower shoe 18 of supporting trolley 6 is provided with four groups of screwed holes, and the head of described four groups of guide upright posts 17 is provided with screw thread, and the head of guide upright post 17 is screwed into screwed hole, cooperative end part by locking nut II 19 and lock washer 20 fastening.
The guide upright post 17 of supporting trolley 6 is arranged with spring 16, is used for increasing the flexibility in straightening process, and after having aligned, utilizes the spring force of generation to be upspring by welded tube.
The middle part of the short supporting axle 14 of supporting trolley 6 is provided with bearing I 13 and end bearing.
As shown in Figure 1, when the present invention works, V-type seat under two groups 7 and two groups of supporting trolleys 6 are fixed on lower supporting plate 5 simultaneously, the axis of V-block is inverted in the position of two groups of supporting trolleys 6 along top, be arranged symmetrically in end lower supporting plate 5 being positioned at stand 8, under two groups, the axis of V-block is inverted in the position of V-type seat 7 along top, be arranged symmetrically in middle part lower supporting plate 5 being positioned at stand 8, aligning welded tube will be treated under being placed on two groups on V-type seat 7 and supporting trolley 6, hydraulic system drives the piston rod in hydraulic cylinder 1 to move downward, thus drive top inversion V-block 4 to move downward, masterpiece is used in by V-block 4 to be treated on aligning welded tube, lower V-type seat 7 and supporting trolley 6 produce corresponding reaction force and are aligned by welded tube, hydraulic cylinder 1 rises, under the active force of the spring 9 of welded tube on the guide upright post of supporting trolley 6, leave the surface of lower V-type seat 7, by the bearing of in the middle part of rotation support shaft and end, the linearity rotating welded tube can be estimated, or by pulling ruler, the aligning degree of welded tube can be detected.So far, welded tube has been aligned.
The surface of upper V-block 4 and lower V-type seat 7 is covered with rubber blanket 10, is used for preventing Welded Pipe surface in straightening process from causing damage.When aligning local buckling, by the spacing of adjustment twice V-type seats 7, the object of local aligning can be reached.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.

Claims (6)

1. for eliminating a straightener for high-frequency straight seam welded pipe bending defect, it is characterized in that, comprising:
With being inverted the hold-down devices of V-block, lower V-type seat, supporting trolley and lower supporting plate;
Described hold-down devices comprises upper backup pad, rack-mounted hydraulic cylinder and inversion V-block, described upper backup pad is provided with through hole, the screw thread spindle nose of the below of described hydraulic cylinder matches through the through hole on upper backup pad and the disposed thread be inverted bottom V-block, cooperative end part is fixed by locking nut, and described upper backup pad is fixed in frame;
Described lower supporting plate is fixed on stand, and described lower supporting plate is provided with lower V-type seat and supporting trolley;
Described supporting trolley is provided with mounting plate and lower shoe, described lower shoe is fixed with four groups of guide upright posts, and the middle part of described mounting plate is provided with two groups of short supporting axles;
Be inverted under the piston rod of V-block in hydraulic cylinder promote, move downward, act on and be placed on treating on lower V-type seat and supporting trolley and align welded tube;
Described lower V-type seat and supporting trolley are respectively equipped with two groups, V-type seat under two groups, along the vertical axis being inverted V-block, are arranged symmetrically in the middle part of lower supporting plate, two groups of supporting trolleys, along the vertical axis of top V-block, are arranged symmetrically in the end of lower supporting plate;
The both sides, top of described lower V-type seat are provided with lifting bolt, can the position of V-type seat under transverse shifting by the hook suspension ring below lifting purlin car;
The short supporting axle two ends of described supporting trolley and middle part are provided with spring bearing.
2. a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect as claimed in claim 1, it is characterized in that, the two ends of described upper backup pad are provided with screwed hole, are bolted in frame.
3. a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect as claimed in claim 1, it is characterized in that, the surface of described V-block and lower V-type seat is fixed with rubber blanket.
4. a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect as claimed in claim 1, it is characterized in that, the V-type opening of described V-block and lower V-type seat is provided with screwed hole, and described rubber blanket is separately fixed on V-block and lower V-type seat by trip bolt.
5. a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect as claimed in claim 1, is characterized in that, the guide upright post of described supporting trolley is arranged with spring.
6. a kind of straightener for eliminating high-frequency straight seam welded pipe bending defect as claimed in claim 1, it is characterized in that, the base plate of described supporting trolley is provided with four groups of screwed holes, the head of described four groups of guide upright posts is provided with screw thread, the head of guide upright post is screwed into screwed hole, cooperative end part by locking nut and lock washer fastening.
CN201410841077.1A 2014-12-30 2014-12-30 A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect Active CN104492870B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410841077.1A CN104492870B (en) 2014-12-30 2014-12-30 A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410841077.1A CN104492870B (en) 2014-12-30 2014-12-30 A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect

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CN104492870B true CN104492870B (en) 2016-04-20

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106563712A (en) * 2016-10-17 2017-04-19 齐鲁工业大学 Oil press form correction device for treating long and straight workpieces
CN107983864A (en) * 2017-12-07 2018-05-04 马鞍山市华科实业有限公司 A kind of tubing fixing device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101837403B (en) * 2010-02-10 2011-10-05 西安石油大学 Alignment pressure head
CN201702216U (en) * 2010-07-01 2011-01-12 烟台海德机床有限公司 Straight-member workpiece straightening mechanism
CN201791787U (en) * 2010-09-29 2011-04-13 北京长宇利华液压系统工程设计有限公司 Semi-automatic cold-drawn steel tube straightener
CN202411156U (en) * 2011-12-12 2012-09-05 宝钢集团常州轧辊制造公司 Novel straightening device for mandrel
CN203695663U (en) * 2014-01-15 2014-07-09 上海尊优自动化设备有限公司 Straightening machine for steel tube
CN203751053U (en) * 2014-04-01 2014-08-06 太原重工股份有限公司 Small and medium-sized vertical hydraulic straightening machine
CN204365750U (en) * 2014-12-30 2015-06-03 山东泰丰钢业有限公司 A kind of straightener for eliminating high-frequency straight seam welded pipe bending defect

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