CN202263801U - Steel pipe calibrating and straightening equipment - Google Patents

Steel pipe calibrating and straightening equipment Download PDF

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Publication number
CN202263801U
CN202263801U CN 201120336597 CN201120336597U CN202263801U CN 202263801 U CN202263801 U CN 202263801U CN 201120336597 CN201120336597 CN 201120336597 CN 201120336597 U CN201120336597 U CN 201120336597U CN 202263801 U CN202263801 U CN 202263801U
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CN
China
Prior art keywords
steel pipe
straightening
press
oil cylinder
equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201120336597
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Chinese (zh)
Inventor
王钢
郭振其
白学伟
姚华
李翠艳
朱敏
王旺甫
边晋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNPC Bohai Equipment Manufacturing Co Ltd
Julong Steel Pipe Co Ltd
Original Assignee
CNPC Bohai Equipment Manufacturing Co Ltd
Julong Steel Pipe Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by CNPC Bohai Equipment Manufacturing Co Ltd, Julong Steel Pipe Co Ltd filed Critical CNPC Bohai Equipment Manufacturing Co Ltd
Priority to CN 201120336597 priority Critical patent/CN202263801U/en
Application granted granted Critical
Publication of CN202263801U publication Critical patent/CN202263801U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides steel pipe calibrating and straightening equipment, and particularly relates to correction equipment for the appearance of a large-caliber straight seam submerged arc welding steel pipe, which belongs to the technical field of pipe manufacture. The steel pipe calibrating and straightening equipment comprises a press and a feeding device, and is characterized in that the press comprises four vertical columns fixed to a frame, an upper cylinder base is fixed on the upper portions of the vertical columns, an upper mould base capable of vertically sliding along the vertical columns is arranged below the upper cylinder base, a straightening oil cylinder capable of driving the upper mould base to vertically slide along the vertical columns is fixed onto the upper cylinder base, an upper mould is fixed at the bottom of the upper mould base, a lower cylinder base is fixed on the lower portions of the vertical columns, a lower mould base capable of vertically sliding along the vertical columns is arranged above the lower cylinder base, a calibrating oil cylinder capable of driving the lower mould base to vertically slide along the vertical columns is fixed onto the lower cylinder base, a lower mould is fixed to the top of the lower mould base, and straightening supports are longitudinally arranged at the front end and the rear end of the press along the center of the press respectively. The press is provided with the upper oil cylinder and the lower oil cylinder, the upper oil cylinder is the straightening oil cylinder, the lower oil cylinder is the calibrating oil cylinder, the calibrating oil cylinder drives the lower mould to ascend during calibrating, the straightening oil cylinder drives the upper mould to descend during straightening, and calibrating and straightening functions are realized on the press.

Description

The whole footpath of a kind of steel pipe equipment for straightening
Technical field
The utility model provides the whole footpath of a kind of steel pipe equipment for straightening, and particularly a kind of correcting device that is used for the outward appearance of heavy caliber vertical masonry joint submerged arc welding steel pipe belongs to tubing manufacturing technology field.
Background technology
Cause ovality excessive sometimes in the existing steel pipe's production process of China, straight degree exceeds standard or phenomenon such as body distortion, because steel pipe often has high toughness and intensity, is difficult to correct the ovality of steel pipe with directly spending.
Be used for heavy caliber vertical masonry joint submerged arc welding steel pipe is carried out the rectification of outward appearance.As: if the excessive client's standard that exceeds of the ovality of steel pipe then need be remedied to it in ovality scope of standard-required through whole footpath equipment;
Exceed client's standard greatly if tube bending is spent, then can it be remedied in the standard-required linearity scope through equipment for straightening.
Not enough below the domestic shaping equipment for straightening that is used for the heavy caliber straight seam welded steel pipe exists:
Pressure is generally less; Large-scale equipment for straightening above 1500MN is seldom arranged; And mould is provided with unreasonable, and often the nominal external diameter with steel pipe is identical, or does not have enough interference deformation spaces; Do not consider the amount of plastic deformation and the rebound amount of high tensile steel tube, can't correct up to the high tensile steel tube of 500-900MPa for yield strength.
Do not have to put in order footpath (ovality), can align the comprehensive unit of (linearity) again, have only single reeling machine and straightener.
Equipment accessory system such as roller-way, the rotation roller, die holder is provided with repetition up and down, power-equipments such as motor, Hydraulic Station are provided with repetition, energy waste is bigger; Cause the investment waste; It is also big to take up an area of the space.
Domestic whole footpath and equipment for straightening do not adopt special numerical control program control, can not carry out accurate crawl control and Automatic parameter setting.
The utility model content
The utility model technical issues that need to address are:
The whole footpath of a kind of steel pipe equipment for straightening is provided, can realizes that the flexibility correction and the ovality of steel pipe proofreaied and correct difunctional.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
The utility model comprises press and charging gear; Comprise press; Said press comprises and four fixing root posts of frame that column top is the upper cylinder half seat fixedly, and upper cylinder half seat below is provided with can be along the upper bolster of the upper and lower slip of column; Fix on the upper cylinder half seat and can drive the aligning oil cylinder of upper bolster along the upper and lower slip of column, the upper bolster bottom is mold fixedly;
The fixing cylinder seat down in column bottom, following cylinder seat top are provided with and can fix on the following cylinder seat and can drive die shoe along the whole footpath oil cylinder that column slides up and down along the die shoe of the upper and lower slip of column, and said die shoe top is bed die fixedly;
Said press front and back ends difference longitudinally center is provided with the aligning bearing as the aligning station strong point.
Be provided with on the said press longitudinal centre line and can workpiece be sent into the aligning station of press or the charging gear of whole footpath station.
The further improvement of the utility model is:
The said upper and lower die holder guide post that is slidingly matched.
The rectangular layout of said four root posts, upper and lower mould is positioned at the center of four root posts.
Said charging gear comprises along press longitudinal center position and being provided with, can be along the feed raceway of the horizontal longitudinal centre line conveying steel pipe of upper and lower mould.
Said feed raceway supports through rocking arm, thereby the rocking arm bottom-hinged can drive the connecting rod that rocking arm swing realization is supported on its height of feed raceway change on its top.
Said connecting rod is driven by linear drive apparatus.
Said feed raceway vertically is provided with seven groups along press; The support rocking arm of seven groups of feed raceways connects same connecting rod or grouping is connected with connecting rod.
The longitudinal center position of said press is provided with the rotation roller that can drive workpiece rotation placed on it, and the oil cylinder that can drive its up-down is arranged at said rotation roller bottom.
The working face shaped design of said upper and lower mould is an involute arc, said involute arc curvature greater than the circular arc curvature of the steel pipe that will correct.
Because the technological progress of having adopted technique scheme, the utility model to obtain is:
The four column press that the utility model provides is provided with two oil cylinders up and down, and upper cylinder is the aligning oil cylinder, is used for the steel pipe aligning; Following oil cylinder is used for steel pipe and corrects ovality for whole footpath oil cylinder.
Whole footpath hydraulic oil cylinder driving bed die is up during full circle, aligning hydraulic oil cylinder driving bed die is descending when aligning, and on a forcing press, has realized that full circle-aligning is difunctional.
Die-face is designed to involute arc, and the steel pipe that will correct of institute is bigger for curvature, can carry out the rectification in the standard-required scope to steel pipe, is unlikely to cause the local pressure of steel pipe to be out of shape simultaneously.
Use nested mould mounting means, can be nested with more small-bore mould at larger caliber circular arc mould, simple shape, easy to connect, it is very convenient to change the accent type.
Forcing press adopts four post pulling force beam types, and structure is firm.
This machine digital control system can accurately be controlled oil cylinder stroke displacement (being accurate to 0.1mm), and reflection has manual and automatic dual mode fast, can carry out the whole footpath of steel pipe straightening operation easily and effectively.
Charging gear comprises the feed raceway of one group of synchronization lifting, is used for steel pipe is delivered to position to be corrected; Other has one group of rotation roller, and steel pipe is rotated to suitable making correction for direction.
This novel product pressure reaches 2000 tons, utilizes large-power hydraulic cylinder compacting pipe deformation, enough the steel pipe more than the yield strength of 800 MPa is corrected; To diameter below 610; The steel pipe of bore below 813 has aligns and puts in order the footpath effect preferably; Can correct well the profile steel pipe that exceeds standard; The profile of mould can effectively overcome the steel pipe influence springback, and the ovality of these steel pipe outward appearances that exceed standard and linearity are adapted in the critical field, improves product percent of pass.
Description of drawings
Fig. 1 is the structural representation of the whole footpath of a kind of steel pipe equipment for straightening;
Wherein: 1, linear drive apparatus, 2, the rotation roller, 3, frame, 4, the feed raceway; 5, aligning bearing, 6, bed die, 7, mold, 8, the upper cylinder half seat; 9, aligning oil cylinder, 10, column, 11, upper bolster, 12, die shoe; 13, following cylinder seat, 14, whole footpath oil cylinder, 15, connecting rod, 16, rocking arm.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is explained further details:
Shown in Figure 1, the utility model comprises press and charging gear;
Said press comprises: with four fixing root posts 10 of frame 3; Column 10 tops are upper cylinder half seat 8 fixedly; Upper cylinder half seat 8 belows are provided with the upper bolster 11 that can slide up and down along column 10; Fix on the upper cylinder half seat 8 and can drive the aligning oil cylinder 9 that upper bolster 11 slides up and down along column 10, upper bolster 11 bottoms are mold 7 fixedly.
The fixing cylinder seat 13 down in column bottom, following cylinder seat 13 tops are provided with the die shoe 12 that can slide up and down along column 10, fixingly on the following cylinder seat 13 can drive die shoe 12 along the whole footpath oil cylinder 14 that column 10 slides up and down, and said die shoe 12 tops are bed die 6 fixedly.
The rectangular layout of said four root posts, upper and lower mould 7,6 is arranged on the center of four root posts 10.
Upper and lower mould 7,6 is a performance element, directly contacts with steel pipe and suppresses.
The foregoing description central post 10 not only plays the effect of frame; Simultaneously with upper and lower die holder 11,12 be slidingly matched as upper and lower die holder 11,12 guide posts; Said column 10 also can play frame separately, the vertical guide post of the upper and lower die holder 11,12 of otherwise designed.
Said charging gear comprises:
Be provided with along press longitudinal center position, can be along the feed raceway 4 of the horizontal longitudinal centre line conveying steel pipe of upper and lower mould 7,6; The feed raceway is by its rotation of motor-driven; Said feed raceway 4 vertically is provided with seven groups along press, and feed raceway 4 supports through rocking arm 16, and rocking arm 16 bottoms are driven by connecting rod 15; In order to guarantee seven groups of feed raceway 4 synchronization actions, the connecting rod 15 of its bottom structure that is connected as a single entity is promptly by a connecting rod 15 driving multiple sets feed raceways 4; Connecting rod 15 outer ends are driven by linear drive apparatus 1; Said linear drive apparatus 1 can be designed to devices such as cylinder, oil cylinder, ball-screw.
Said press longitudinal center position is provided with the rotation roller 2 that can drive steel pipe rotation placed on it, and rotation roller 2 is by motor-driven; The oil cylinder that can drive its up-down is arranged at rotation roller 2 bottoms, and said rotation roller 2 can be realized two height and positions, is in a high position when putting in order the footpath; Reduce to low level during aligning.
Above-mentioned charging gear can also adopt the technical scheme of other prior aries, conveyer belt for example, and artificial rotation cooperates elevating mechanisms such as oil cylinder, cylinder.
Said press front and back ends respectively longitudinally the center be provided with the aligning bearing 5.
The working face shaped design of said upper and lower mould 7,6 is an involute arc, and the steel pipe that will correct of institute is bigger for curvature, can carry out the rectification in the standard-required scope to steel pipe, is unlikely to cause the local pressure of steel pipe to be out of shape simultaneously.Die surface is smooth and arc transition is arranged, and can not produce damage and distortion to steel pipe easily.
Use nested mould mode simultaneously, can be nested with more small-bore mould at larger caliber circular arc mould, simple shape, easy to connect, it is very convenient to change the accent type.
The utility model equipment operation instruction:
Whole footpath process:
Whole footpath station refers to the radially working face position of major axis fixed point contact mold of steel pipe.
1, feed raceway 4 rises to delivery head, and it is inner that steel pipe gets into press through feed raceway 4, and along with connecting rod 15 swings, feed raceway 4 is fallen the height to whole footpath, and steel pipe is placed on the rotation roller 2.
2, rotation roller 2 begins to be rotated, with steel pipe radially major axis go to 12 directions, whole then footpath oil cylinder 14 drives die shoes 12 and moves up; It is up that the operator can take to operate personally crawl (precision reaches 0.2mm) control die shoe 12; Or directly set up final mean annual increment movement value, and make die shoe 12 up automatically, upper bolster 11 is motionless; In the middle of steel pipe is clipped in upper and lower mould 7,6, be extruded distortion, reach suitable circularity.
3, pressurize a period of time, operator's pressure discharge control bed die 6 is descending, unclamps steel pipe, observes and measures pressing result, does not then repeat compacting as reaching the customer requirement ovality as yet.Because of security needs, hydraulic system all locks during the measurement, and any parts of equipment can not move.
4, control feed raceway 4 transports steel pipe to its length direction any a section, repeats 1)-3) step carries out circularity and corrects.The steel pipe ovality reaches client's standard in length range.
The aligning process:
The aligning station refers to that the high point of the axis of bending of steel pipe is positioned at the top, places on the aligning bearing 5.
1, feed raceway 4 rises to delivery head, and it is inner that steel pipe gets into press through feed raceway 4, and along with connecting rod 15 swings, roller-way is fallen to the aligning height, and steel pipe is placed on the rotation roller 2.
2, rotation roller 2 begins to be rotated, and the axis of bending of steel pipe is gone to 12 directions, rotates roller 2 then to fall, and steel pipe is placed on the aligning bearing 5.Aligning oil cylinder 9 drives upper bolster 11 and moves down; It is descending that the operator can take to operate personally crawl (precision reaches 0.2mm) control upper bolster 11; Or directly set descending final mean annual increment movement value, make upper bolster 11 descending automatically, whole footpath oil cylinder 14 motionless (bed die is removed during aligning); Bent by mold 7 until steel pipe, reach suitable linearity.
3, pressurize a period of time, operator's pressure discharge control mold 7 is up, unclamps steel pipe, observes and measures pressing result and linearity, does not then repeat compacting as reaching the customer requirement linearity as yet.Because of security needs, hydraulic system all locks during the measurement, and any parts of equipment can not move.
4, control feed raceway 4 transports steel pipe to its length direction any a section, repeats 1)-3) step carries out linearity and corrects.The steel pipe linearity reaches client's standard in length range.
The utility model is positioned at the bottom when adopting full circle whole footpath oil cylinder 14 drives the descending unique technology of aligning oil cylinder 9 driving moulds that mould is up, be positioned at the top when aligning, and on a forcing press, has realized that full circle-aligning is difunctional.
Novel whole footpath straightening press is to diameter below 610, and the steel pipe of bore below 813 has aligns and put in order the footpath effect preferably, can correct well the profile steel pipe that exceeds standard, and has improved product percent of pass.
This forcing press adopts four traditional post pulling force beam types, and structure is firm; Two oil cylinders up and down, on to align the oil cylinder tonnage be 700 tons, be used for the steel pipe aligning; Whole down footpath oil cylinder tonnage is 2000 tons, is used for steel pipe and corrects ovality (whole footpath).
This machine design digital control system can accurately be controlled oil cylinder stroke displacement (being accurate to 0.1mm), and reflection has manually and automatic 2 kinds of modes fast, can carry out the whole footpath of steel pipe straightening operation easily and effectively.

Claims (9)

1. a steel pipe is put in order the footpath equipment for straightening; Comprise press; It is characterized in that: said press comprises and four fixing root posts of frame that column top is the upper cylinder half seat fixedly, and upper cylinder half seat below is provided with can be along the upper bolster of the upper and lower slip of column; Fix on the upper cylinder half seat and can drive the aligning oil cylinder of upper bolster along the upper and lower slip of column, the upper bolster bottom is mold fixedly;
The fixing cylinder seat down in column bottom, following cylinder seat top are provided with and can fix on the following cylinder seat and can drive die shoe along the whole footpath oil cylinder that column slides up and down along the die shoe of the upper and lower slip of column, and said die shoe top is bed die fixedly;
Said press front and back ends difference longitudinally center is provided with the aligning bearing as the aligning station strong point;
Be provided with on the said press longitudinal centre line and can workpiece be sent into the aligning station of press or the charging gear of whole footpath station.
2. the whole footpath of a kind of steel pipe according to claim 1 equipment for straightening, it is characterized in that: the rectangular layout of said four root posts, upper and lower mould is positioned at the center of four root posts.
3. the whole footpath of a kind of steel pipe according to claim 2 equipment for straightening is characterized in that: said charging gear comprises along press longitudinal center position and being provided with, can be along the feed raceway of the horizontal longitudinal centre line conveying steel pipe of upper and lower mould.
4. the whole footpath of a kind of steel pipe according to claim 3 equipment for straightening is characterized in that: said feed raceway passes through rocking arm to be supported, and realizes that the feed raceway that is supported on its top changes its connecting rod highly thereby the rocking arm bottom-hinged can drive the rocking arm swing.
5. the whole footpath of a kind of steel pipe according to claim 4 equipment for straightening, it is characterized in that: said connecting rod is driven by linear drive apparatus.
6. the whole footpath of a kind of steel pipe according to claim 5 equipment for straightening, it is characterized in that: said feed raceway vertically is provided with seven groups along press; The support rocking arm of seven groups of feed raceways connects same connecting rod or grouping is connected with connecting rod.
7. the whole footpath of a kind of steel pipe according to claim 1 equipment for straightening is characterized in that: the longitudinal center position of said press is provided with the rotation roller that can drive workpiece rotation placed on it, and the oil cylinder that can drive its up-down is arranged at said rotation roller bottom.
8. the whole footpath of a kind of steel pipe according to claim 1 equipment for straightening, it is characterized in that: the working face shaped design of said upper and lower mould is an involute arc, said involute arc curvature greater than the circular arc curvature of the steel pipe that will correct.
9. the whole footpath of a kind of steel pipe according to claim 1 equipment for straightening is characterized in that: the said upper and lower die holder guide post that is slidingly matched.
CN 201120336597 2011-09-08 2011-09-08 Steel pipe calibrating and straightening equipment Expired - Lifetime CN202263801U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120336597 CN202263801U (en) 2011-09-08 2011-09-08 Steel pipe calibrating and straightening equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120336597 CN202263801U (en) 2011-09-08 2011-09-08 Steel pipe calibrating and straightening equipment

Publications (1)

Publication Number Publication Date
CN202263801U true CN202263801U (en) 2012-06-06

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CN 201120336597 Expired - Lifetime CN202263801U (en) 2011-09-08 2011-09-08 Steel pipe calibrating and straightening equipment

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102294384A (en) * 2011-09-08 2011-12-28 中国石油集团渤海石油装备制造有限公司 Steel pipe diameter-shaping and straightening equipment
CN105251806A (en) * 2015-11-13 2016-01-20 武汉工程大学 Leveller of distributing valve plate
CN108941352A (en) * 2018-04-18 2018-12-07 淮北智淮科技有限公司 Workbench is used in a kind of processing of new energy materials
CN109047515A (en) * 2018-09-19 2018-12-21 苏州工业园区虹逸精密机械有限公司 Open side type metal winding pipe and alignment multifunctional numerical control hydraulic press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102294384A (en) * 2011-09-08 2011-12-28 中国石油集团渤海石油装备制造有限公司 Steel pipe diameter-shaping and straightening equipment
CN105251806A (en) * 2015-11-13 2016-01-20 武汉工程大学 Leveller of distributing valve plate
CN108941352A (en) * 2018-04-18 2018-12-07 淮北智淮科技有限公司 Workbench is used in a kind of processing of new energy materials
CN109047515A (en) * 2018-09-19 2018-12-21 苏州工业园区虹逸精密机械有限公司 Open side type metal winding pipe and alignment multifunctional numerical control hydraulic press

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Granted publication date: 20120606