CN105583270B - Seamless steel pipe bending machine - Google Patents

Seamless steel pipe bending machine Download PDF

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Publication number
CN105583270B
CN105583270B CN201610143565.4A CN201610143565A CN105583270B CN 105583270 B CN105583270 B CN 105583270B CN 201610143565 A CN201610143565 A CN 201610143565A CN 105583270 B CN105583270 B CN 105583270B
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CN
China
Prior art keywords
steel pipe
seamless steel
moving block
bending machine
lock
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CN201610143565.4A
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Chinese (zh)
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CN105583270A (en
Inventor
宋建新
朱秋华
李轶
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.)
JIANGSU WUJIN STAINLESS STEEL CO Ltd
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JIANGSU WUJIN STAINLESS STEEL CO Ltd
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Priority to CN201610143565.4A priority Critical patent/CN105583270B/en
Publication of CN105583270A publication Critical patent/CN105583270A/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
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/08Bending rods, profiles, or tubes by passing between rollers or through a curved die
    • B21D7/085Bending rods, profiles, or tubes by passing between rollers or through a curved die by passing through a curved die

Abstract

The present invention relates to bending machine technical field,Especially a kind of seamless steel pipe bending machine,Including frame and two flanks being arranged in frame,Moving block is rotatably connected between flank,Semicircle bending die is removably connected with moving block,The bend pipe groove to match with seamless steel pipe is offered on the periphery of bending die,Frame is provided with drive mechanism,The lower section of moving block is provided with supporting plate,Supporting plate is provided with the bracket to match with seamless steel pipe,Moving block is provided with the clamp system for being used for being clamped in seamless steel pipe on bending die,The side of flank is provided with balladeur train,Sliding block is slidably connected on balladeur train,One end of seamless steel pipe is provided with plug,The other end is communicated with high-pressure air source,The seamless steel pipe bending machine of the present invention is simple in construction,It is easy to use,Bending die is changed convenient,Bend pipe efficiency high,By being passed through gases at high pressure in seamless steel pipe,It can prevent that some wall thickness are relatively thin in bend pipe steel pipe from collapsing and internal wrinkles,Bend pipe precision is high.

Description

Seamless steel pipe bending machine
Technical field
The present invention relates to bending machine technical field, especially a kind of seamless steel pipe bending machine.
Background technology
Seamless steel pipe has hollow section, a large amount of pipelines for being used as trandfer fluid, such as transfer oil, natural gas, coal gas and water And pipeline of some solid materials etc., seamless steel pipe may need to be processed into certain flexibility in actual application Bend pipe, typically by worker's manual operations, processing a bend pipe needs to be grasped repeatedly for the bend pipe work of pipeline in the prior art Make, waste a large amount of manpowers, add the workload of bend pipe personnel, due to worker's manual operations, therefore certain safety also be present Hidden danger, the bending precision of bend pipe is relatively poor, and labor productivity is low, and the relatively thin steel pipe of some wall thickness easily produces in bend pipe to collapse Sunken and internal wrinkles, causes steel pipe appearance damage, it is also possible to cause to install and use, although some existing large-scale bending machine bend pipes Efficiency high, function is more, but its is complicated, and equipment is expensive, and maintenance cost is high.
The content of the invention
The technical problem to be solved in the present invention is:In order to solve the problems, such as that seamless steel pipe bend pipe efficiency is low in the prior art, A kind of seamless steel pipe bending machine is now provided, the bending machine is simple in construction, and manufacturing cost is low, and bend pipe precision is high.
The technical solution adopted for the present invention to solve the technical problems is:A kind of seamless steel pipe bending machine, including frame and Two flanks being arranged in frame, moving block is rotatably connected between the flank, is removably connected with the moving block Semicircle bending die, the bend pipe groove to match with seamless steel pipe is offered on the periphery of the bending die, is set in the frame Have a drive mechanism for driving moving block to rotate, the lower section of the moving block is provided with supporting plate, the supporting plate provided with it is seamless The bracket that steel pipe matches, it is provided with below the supporting plate and is used to driving the power set that it rises or falls, on the moving block Provided with the clamp system for being clamped in seamless steel pipe on bending die, the side of the flank is provided with balladeur train, on the balladeur train Sliding block is slidably connected, the first through hole to match with seamless steel pipe is offered on the sliding block, the lower section of the balladeur train is provided with Height Adjustable support bar, one end of the seamless steel pipe are provided with plug, and the other end is communicated with high-pressure air source.
When in this programme by linear seamless steel pipe bending, first seamless steel pipe is placed in the bracket of supporting plate and then opened Dynamic power set rise to seamless steel pipe to be bonded with the bend pipe groove of bending die, and clamp system is used for the seamless steel pipe that will be had good positioning One end of bending die is clamped in, then moves up movable slider in balladeur train, the first through hole of sliding block is passed through into seamless steel pipe, finally started Drive mechanism drives moving block to rotate, and for seamless steel pipe because one end is fixed on bending die, there is a pallet support lower section, therefore can be with The bend pipe groove bending on bending die;When seamless steel pipe needs the radius difference bent, bending die can be changed;Wherein supporting plate It can be the placement for the ease of seamless steel pipe with respect to bending die raising and lowering;In bend pipe, by plug by seamless steel pipe One end is blocked, and gas, seamless steel pipe inner high voltage gas are blowed into seamless steel pipe by high-pressure air source from the other end of seamless steel pipe Body has the power expanded outwardly to seamless steel pipe, is effectively prevented seamless steel pipe relatively thin steel pipe of some wall thickness in bend pipe Generation collapses and internal wrinkles.
Due to using motor to drive, it is necessary to be equipped with the reductor of very big speed reducing ratio, cost is caused to increase, further Ground, the drive mechanism include first hydraulic cylinder and connecting rod, and the first hydraulic cylinder is rotatably arranged in the frame, and described One end of the external part of one hydraulic cylinder and the connecting rod is rotatablely connected, and the other end of the connecting rod is fixed with the moving block to be connected Connecing, connecting rod can drive moving block to rotate when hydraulic cylinder external part stretches out, ingenious to make use of hydraulic cylinder to be connected with gantry rotation, in Between by connecting rod connection liquid cylinder pressure external part and moving block, simple in construction, cost is low.
For the ease of changing bending die, further, mounting groove, the installation are offered on the inner ring wall of the bending die The bottom surface of groove is the arc surface to match with the outer peripheral face of moving block, and some projections, the rotation are provided with the mounting groove The groove to match with the projection is offered on the outer peripheral face of block, the projection is plugged in the groove, the moving block Side be bonded with the side wall of the mounting groove, the first pin-and-hole is offered in the side wall and moving block of the mounting groove, it is described Steady pin is inserted with first pin-and-hole, raised and groove cooperation is realized the power transmission between moving block and bending die, needed When changing bending die, steady pin only need to be extracted, bending die will be automatically separated with moving block.
Further, the clamp system includes U-shape lock and lock, and is equipped with the both sides of the U-shape lock and lock Two pin-and-holes, is provided with stop pin in second pin-and-hole, the U-shape lock is provided with trip bolt, by seamless steel pipe pass through U-shape lock and The space that lock encloses, stop pin is passed through into the second pin-and-hole, fixation of the U-shape lock on lock is realized, screws trip bolt, fastened The end of thread end of screw is contacted with seamless steel pipe, and seamless steel pipe is firmly fixed on bending die.
Further, the lock is provided with rubber blanket, the friction between rubber blanket and seamless steel pipe with respect to one end of U-shape lock Power is big, passes through the effect of trip bolt so that seamless steel pipe is more firm to be fixed on bending die.
Preferably, the power set include second hydraulic cylinder and fixed seat, and the second hydraulic cylinder is fixed on the machine On frame, the fixed seat is fixed on the second hydraulic cylinder external part, and the supporting plate is detachably connected with the fixed seat.Support It is in the seamless steel pipe of bending different tube diameters, change corresponding supporting plate that plate is detachably connected with fixed seat.
The beneficial effects of the invention are as follows:The seamless steel pipe bending machine of the present invention is simple in construction, easy to use, and bending die is changed It is convenient, bend pipe efficiency high, by being passed through gases at high pressure in seamless steel pipe, the steel that some wall thickness are relatively thin in bend pipe can be prevented Pipe collapses and internal wrinkles, and bend pipe precision is high.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of seamless steel pipe bending machine of the present invention;
Fig. 2 is the schematic three dimensional views of seamless steel pipe bending machine of the present invention;
Fig. 3 is the close-up schematic view of A in Fig. 2;
Fig. 4 is the mutual alignment schematic diagram of supporting plate and bending die in seamless steel pipe bending machine of the present invention;
Fig. 5 is moving block, bending die and clamp system scheme of installation in seamless steel pipe bending machine of the present invention;
Fig. 6 is moving block and bending die schematic diagram in seamless steel pipe bending machine of the present invention.
In figure:1st, frame, 2, flank, 3, moving block, 301, groove, 4, bending die, 401, bend pipe groove, 402, mounting groove, 403rd, it is raised, 5, supporting plate, 501, bracket, 6, balladeur train, 7, sliding block, 8, support bar, 9, plug, 10, high-pressure air source, the 11, first liquid Cylinder pressure, 12, connecting rod, the 13, first pin-and-hole, 14, steady pin, 15, U-shape lock, 16, lock, 17, stop pin, 18, trip bolt, 19, Rubber blanket, 20, second hydraulic cylinder, 21, fixed seat, 22, seamless steel pipe.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
1-6 as shown in the figure, a kind of seamless steel pipe bending machine, including frame 1 and two flanks 2 being arranged in frame 1, institute State and be rotatably connected to moving block 3 between flank 2, semicircle bending die 4, the bend pipe are removably connected with the moving block 3 The bend pipe groove 401 to match with seamless steel pipe 22 is offered on the periphery of mould 4, the frame 1 is provided with to be used to drive and rotated The drive mechanism that block 3 rotates, the lower section of the moving block 3 are provided with supporting plate 5, and the supporting plate 5 is provided with and the phase of seamless steel pipe 22 The bracket 501 matched somebody with somebody, the lower section of supporting plate 5, which is provided with, to be used to drive the power set that it rises or falls, and the moving block 3 is provided with For the clamp system being clamped in seamless steel pipe 22 on bending die 4, the side of the flank 2 is provided with balladeur train 6, the balladeur train 6 On slidably connect sliding block 7, the first through hole to match with seamless steel pipe 22 is offered on the sliding block 7, under the balladeur train 6 Side is provided with Height Adjustable support bar 8, and one end of the seamless steel pipe 22 is provided with plug 9, and the other end is communicated with high-pressure air source 10, the gas that high-pressure air source 10 blows is inert gas.
The drive mechanism includes first hydraulic cylinder 11 and connecting rod 12, and the first hydraulic cylinder 11 is rotatably arranged on the machine On frame 1, one end of the external part of the first hydraulic cylinder 11 and the connecting rod 12 is rotatablely connected, the other end of the connecting rod 12 with The moving block 3 is fixedly connected, and connecting rod 12 can drive moving block 3 to rotate when hydraulic cylinder external part stretches out, ingenious to make use of liquid Cylinder pressure is rotatablely connected with frame 1, and centre is by the connection liquid cylinder pressure external part of connecting rod 12 and moving block 3, and simple in construction, cost is low.
Mounting groove 402 is offered on the inner ring wall of the bending die 4, the bottom surface of the mounting groove 402 is and moving block 3 The arc surface that outer peripheral face matches, some raised 403 are provided with the mounting groove 402, is opened on the outer peripheral face of the moving block 3 Provided with being plugged in described raised 403 grooves 301 to match, described raised 403 in the groove 301, the moving block 3 Side is bonded with the side wall of the mounting groove 402, and the side wall of the mounting groove 402 on moving block 3 with offering the first pin-and-hole 13, steady pin 14 is inserted with first pin-and-hole 13, moving block 3 and bending die 4 are realized in projection 403 and the cooperation of groove 301 Between power transmission, need change bending die 4 when, only need to extract steady pin 14, bending die 4 will divide automatically with moving block 3 From.
The clamp system includes U-shape lock 15 and lock 16, and second is equipped with the both sides of the U-shape lock 15 and lock 16 Pin-and-hole, second pin-and-hole is interior to be provided with stop pin 17, and the U-shape lock 15 is provided with trip bolt 18, and seamless steel pipe 22 is passed through into U The space that type lock 15 encloses with lock 16, passes through the second pin-and-hole by stop pin 17, realizes fixation of the U-shape lock 15 on lock 16, Trip bolt 18 is screwed, the end of thread end of trip bolt 18 contacts with seamless steel pipe 22, seamless steel pipe 22 is firmly fixed On bending die 4.
The lock 16 is provided with rubber blanket 19, rubbing between rubber blanket 19 and seamless steel pipe 22 with respect to one end of U-shape lock 15 It is big to wipe power, passes through the effect of trip bolt 18 so that seamless steel pipe 22 is more firm to be fixed on bending die 4.
The power set include second hydraulic cylinder 20 and fixed seat 21, and the second hydraulic cylinder 20 is fixed on the frame On 1, the fixed seat 21 is fixed on the external part of second hydraulic cylinder 20, and the supporting plate 5 and the fixed seat 21 are detachable Connection.It is relative in order in the seamless steel pipe 22 of bending different tube diameters, change that supporting plate 5 is detachably connected with fixed seat 21 The supporting plate 5 answered.
The seamless steel pipe bending machine operation principle of the present invention is as follows:
First seamless steel pipe 22 is placed in the bracket 501 of supporting plate 5, then starts power set and rises seamless steel pipe 22 To being bonded with the bend pipe groove 401 of bending die 4, clamp system is used to the seamless steel pipe 22 having good positioning being clamped in the one of bending die 4 End, then moves up movable slider 7 in balladeur train 6, the first through hole of sliding block 7 is passed through into seamless steel pipe 22, finally starts drive mechanism band Turn motion block 3 rotates, and for seamless steel pipe 22 because one end is fixed on bending die 4, lower section has supporting plate 5 to support, therefore can be with curved Bend pipe groove 401 on pipe die 4 is bent;
When seamless steel pipe 22 needs the radius difference bent, bending die 4 can be changed;Wherein supporting plate 5 can be with respect to bend pipe The raising and lowering of mould 4 is for the ease of the placement of seamless steel pipe 22;
In bend pipe, one end of seamless steel pipe 22 is blocked by plug 9, passes through high pressure from the other end of seamless steel pipe 22 Source of the gas 10 blows gas into seamless steel pipe 22, and the inner high voltage gas of seamless steel pipe 22 has one to expand outwardly to seamless steel pipe 22 Power, is effectively prevented the steel pipe that some wall thickness are relatively thin in bend pipe of seamless steel pipe 22 and produces and collapse and internal wrinkles.
The above-mentioned desirable embodiment according to the present invention is enlightenment, complete by above-mentioned description, relevant staff Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical Scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.

Claims (6)

  1. A kind of 1. seamless steel pipe bending machine, it is characterised in that:Including frame(1)And it is arranged on frame(1)On two flanks (2), the flank(2)Between be rotatably connected to moving block(3), the moving block(3)On be removably connected with semicircle bend pipe Mould(4), the bending die(4)Periphery on offer and seamless steel pipe(22)The bend pipe groove to match(401), the frame (1)It is provided with and is used to drive moving block(3)The drive mechanism of rotation, the moving block(3)Lower section be provided with supporting plate(5), it is described Supporting plate(5)It is provided with and seamless steel pipe(22)The bracket to match(501), the supporting plate(5)Lower section, which is provided with, to be used to drive thereon The power set for rising or declining, the moving block(3)It is provided with and is used for seamless steel pipe(22)It is clamped in bending die(4)On folder Tight mechanism, the flank(2)Side be provided with balladeur train(6), the balladeur train(6)On slidably connect sliding block(7), the sliding block (7)On offer and seamless steel pipe(22)The first through hole to match, the balladeur train(6)Lower section be provided with Height Adjustable branch Strut(8), the seamless steel pipe(22)One end be provided with plug(9), the other end is communicated with high-pressure air source(10).
  2. 2. seamless steel pipe bending machine according to claim 1, it is characterised in that:The drive mechanism includes first hydraulic cylinder (11)And connecting rod(12), the first hydraulic cylinder(11)It is rotatably arranged on the frame(1)On, the first hydraulic cylinder(11)'s External part and the connecting rod(12)One end rotation connection, the connecting rod(12)The other end and the moving block(3)It is fixed to connect Connect.
  3. 3. seamless steel pipe bending machine according to claim 1, it is characterised in that:The bending die(4)Inner ring wall on open Provided with mounting groove(402), the mounting groove(402)Bottom surface be and moving block(3)The arc surface that matches of outer peripheral face, it is described Mounting groove(402)Inside it is provided with some projections(403), the moving block(3)Outer peripheral face on offer and the projection(403) The groove to match(301), the projection(403)It is plugged in the groove(301)It is interior, the moving block(3)Side and institute State mounting groove(402)Side wall fitting, the mounting groove(402)Side wall and moving block(3)On offer the first pin-and-hole (13), first pin-and-hole(13)Inside it is inserted with steady pin(14).
  4. 4. seamless steel pipe bending machine according to claim 3, it is characterised in that:The clamp system includes U-shape lock(15) And lock(16), the U-shape lock(15)Both sides and lock(16)On be equipped with the second pin-and-hole, lock is provided with second pin-and-hole Rationed marketing(17), the U-shape lock(15)It is provided with trip bolt(18).
  5. 5. seamless steel pipe bending machine according to claim 4, it is characterised in that:The lock(16)With respect to U-shape lock(15) One end be provided with rubber blanket(19).
  6. 6. seamless steel pipe bending machine according to claim 1, it is characterised in that:The power set include second hydraulic cylinder (20)And fixed seat(21), the second hydraulic cylinder(20)It is fixed on the frame(1)On, the fixed seat(21)It is fixed on institute State second hydraulic cylinder(20)On external part, the supporting plate(5)With the fixed seat(21)It is detachably connected.
CN201610143565.4A 2016-03-14 2016-03-14 Seamless steel pipe bending machine Active CN105583270B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610143565.4A CN105583270B (en) 2016-03-14 2016-03-14 Seamless steel pipe bending machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610143565.4A CN105583270B (en) 2016-03-14 2016-03-14 Seamless steel pipe bending machine

Publications (2)

Publication Number Publication Date
CN105583270A CN105583270A (en) 2016-05-18
CN105583270B true CN105583270B (en) 2017-12-05

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112570517B (en) * 2020-11-26 2022-02-08 燕山大学 Large-scale pipe fitting forming accuracy control equipment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100617871B1 (en) * 2005-09-21 2006-08-28 주식회사 포스코 Apparatus and method for supporting tube in rotary type bending machine
JP4995511B2 (en) * 2006-08-07 2012-08-08 株式会社オプトン Bending machine
CN201482839U (en) * 2009-09-07 2010-05-26 张家港和升数控机床制造有限公司 Driving device of accessory clamping die base of full-automatic pipe bender
CN201855856U (en) * 2010-11-08 2011-06-08 肇庆市骏驰科技有限公司 Crease resistant and bending machining device for thin metal pipe
CN102166592B (en) * 2011-01-12 2012-09-19 哈尔滨工业大学 Device and method for bending pipe with sealed pipe end by using internally arranged tension rope
CN204396560U (en) * 2014-12-19 2015-06-17 江西荣和特种消防设备制造有限公司 A kind of desk-top automatic pipebender
CN205414021U (en) * 2016-03-14 2016-08-03 江苏武进不锈股份有限公司 Seamless steel pipe bending machine

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