CN1314496C - Pre-forming device in hollow structure high-pressure forming process - Google Patents

Pre-forming device in hollow structure high-pressure forming process Download PDF

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Publication number
CN1314496C
CN1314496C CNB2005100096467A CN200510009646A CN1314496C CN 1314496 C CN1314496 C CN 1314496C CN B2005100096467 A CNB2005100096467 A CN B2005100096467A CN 200510009646 A CN200510009646 A CN 200510009646A CN 1314496 C CN1314496 C CN 1314496C
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CN
China
Prior art keywords
module
arm
forearm
baffle plate
fixed
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CNB2005100096467A
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Chinese (zh)
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CN1644263A (en
Inventor
苑世剑
韩聪
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哈尔滨工业大学
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Priority to CNB2005100096467A priority Critical patent/CN1314496C/en
Publication of CN1644263A publication Critical patent/CN1644263A/en
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Publication of CN1314496C publication Critical patent/CN1314496C/en

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Abstract

The present invention discloses a preforming device specially used for the high-pressure forming in a hollow structure part, which is composed of an upper mould, a lower mould and a pressing machine, wherein the top surface of the upper mould is fixedly connected with the lower end of the pressing head of the pressing machine. A first moulding cavity is formed by the lower surface of the upper mould of a left arm, the left surface of the inner mould at the upper side of the left arm, the upper surface of the lower mould of the left arm and the right surface of the movable mould outside the left arm; a second moulding cavity is formed by the lower surface of the upper mould of a right arm, the right surface of the inner mould at the upper side of the right arm, the upper surface of the lower mould of the right arm and the left surface of the movable mould outside the right arm; a third moulding cavity is formed by the lower surface of the upper mould of a front arm, the upper surface of the lower mould of the front arm, the rear surface of the fixed mould of the front arm and the front surface of the movable mould of the front arm. The movable moulds can be driven to move by an oil cylinder, the upper moulds can be driven to move by the pressing machine, and therefor, the sizes of the moulding cavities can be changed to forming pipe materials. The device has the advantage that the materials are previously and reasonably arranged to avoid the defect of flash edges.

Description

A kind of pre-forming device that is used for the hollow structural component internal high pressure forming
Technical field:
The present invention relates to a kind of pre-forming device that is exclusively used in the hollow structural component internal high pressure forming.
Background technology:
In fields such as aircraft, spacecraft and automobiles, alleviate zero, component weight is one of trend of technical development.A kind of advanced manufacturing technology of making hollow light body structure spare that internal high pressure forming develops under such background just, this technology had both improved the strength and stiffness of drip molding, had saved material again, had reduced cost.The basic craft course of this technology is: at first pipe is placed in the counterdie, closed then patrix, two ends water flat punch sealing with pipe, and make and be full of liquid in the pipe, in the process of pressurization bulging, the drift at two ends inwardly advances feed supplement simultaneously, makes pipe recline the mould inside die cavity under the synergy of interior pressure and axle power like this and is configured as required workpiece.For axis is the hollow unit of two dimension or three-dimensional curve, needs earlier the shape of bending pipes to axis of workpiece, and then is put into that press molding goes out desired part in the whole shaping dies.Because the cross sectional shape of the hollow structural component that internal high pressure forming finally processes both can be circular, also can be rectangle, trapezoidal or other profiled-cross-section, axis can be an one dimension, also can be two-dimentional, can also be three-dimensional space curve, therefore being suitable for monolithic molding makes complicated hollow unit.But hollow unit for a complex section; go out rectangle or other shaped cross if want from the circular cross-section one step forming of tubing; when when bending to the nemaline tubing of final shaft parts and put in the middle of the mould; some position of tubing usually can be extruded outside the mold cavity and form the overlap defective in the matched moulds process, causes waste product.It is excessive or be out of shape inhomogeneous also may to occur regional area section deformation amount simultaneously.Therefore the operation that can make reasonable intermediate shape need be set as the preform operation, in the middle of circular section and the rectangle that will be shaped or other shaped cross, a rational cross section be set and control distortion and Thickness Distribution.Preformed shape is directly connected to hollow section shape and size precision, Thickness Distribution, forming pressure and production efficiency.
Summary of the invention:
The purpose of this invention is to provide a kind of pre-forming device that is specifically designed to the hollow structural component internal high pressure forming, it is the reasonable distribution material in advance, obtain rational preform pipe cross sectional shape, avoid tubing overlap defective, reduce the forming pressure in the internal high pressure forming process and shorten the internal high pressure forming working time, increase work efficiency.Technical scheme of the present invention is as follows: a kind of pre-forming device that is used for the hollow structural component internal high pressure forming, it is by patrix 1, counterdie 2 and forcing press 3 are formed, the last end face of patrix 1 is fixedly connected on a 3-1 lower end of exerting pressure of forcing press 3, counterdie 2 is arranged on the below of patrix 1, patrix 1 is by last baffle plate 1-1, left arm upper module 1-2, right arm upper module 1-3, forearm upper module 1-4, left arm upside inner module 1-5, right arm upside inner module 1-6 and lead 1-7 form, be on left one side of something and right one side of something of the left arm upside inner module 1-5 of strip and right arm upside inner module 1-6 is distributed in baffle plate 1-1 respectively along fore-and-aft direction lower surface, left arm upper module 1-2 is fixed on the last baffle plate 1-1 lower surface in left arm upside inner module 1-5 left side, right arm upper module 1-3 is fixed on the last baffle plate 1-1 lower surface on right arm upside inner module 1-6 right side, forearm upper module 1-4 is fixed on the baffle plate 1-1 lower surface, the end of forearm upper module 1-4 contacts with the front end of left arm upside inner module 1-5, the other end of forearm upper module 1-4 contacts with the front end of right arm upside inner module 1-6, counterdie 2 is by following baffle plate 2-1, left arm outside active module 2-2, right arm outside active module 2-3, forearm lower module 2-5, forearm stuck-module 2-6, forearm active module 2-7, left arm lower module 2-4, right arm lower module 2-12, an oil cylinder 2-8, No. two oil cylinder 2-9, No. three oil cylinder 2-10 and pilot hole 2-11 form, left arm lower module 2-4, right arm lower module 2-12 and forearm lower module 2-5 are fixed on down on the baffle plate 2-1 upper surface, left arm outside active module 2-2 is arranged on the left side of left arm lower module 2-4, on the piston rod of No. three oil cylinder 2-10 under left arm outside active module 2-2 is connected and is fixed on the baffle plate 2-1 upper surface, right arm outside active module 2-3 is arranged on the right side of right arm lower module 2-12, on the piston rod of No. two oil cylinder 2-9 under right arm outside active module 2-3 is connected and is fixed on the baffle plate 2-1 upper surface, forearm stuck-module 2-6 is fixed on forearm lower module 2-5 front side, forearm active module 2-7 is arranged on the rear side of forearm lower module 2-5 and is connected on the piston rod that is fixed in an oil cylinder 2-8 on the following baffle plate 2-1 upper surface, the lower surface of left arm upper module 1-2, the left surface of left arm upside inner module 1-5, the right surface of the upper surface of left arm lower module 2-4 and left arm outside active module 2-2 constitutes first die cavity 6, the lower surface of right arm upper module 1-3, the right surface of right arm upside inner module 1-6, the left surface of the upper surface of right arm lower module 2-12 and right arm outside active module 2-3 constitutes second die cavity 7, the lower surface of forearm upper module 1-4, the upper surface of forearm lower module 2-5, the front surface of the rear surface of forearm stuck-module 2-6 and forearm active module 2-7 constitutes the 3rd die cavity 8.When this device uses, the pipe 5 that bends to needed axis shape is installed between the left arm outside active module 2-2 and right arm outside active module 2-3 and forearm stuck-module 2-6 and forearm active module 2-7 of counterdie 2, a 3-1 that exerts pressure of forcing press 3 moves downward, lead 1-7 inserts pilot hole 2-11, patrix 1 is fastened on downwards on the counterdie 2, pipe 5 with regard to matched moulds in first die cavity 6, second die cavity 7 and the 3rd die cavity 8.A 3-1 that exerts pressure continues to exert pressure downwards, simultaneously thereby push the cross sectional shape that makes pipe 5 from the side of pipe 5 identical with the cross sectional shape of first die cavity 6, second die cavity 7 and the 3rd die cavity 8 for oil cylinder 2-8, No. two oil cylinder 2-9, No. three oil cylinder 2-10, promptly finished the preformed of pipe 5.Enlarge the space of die cavity owing to before matched moulds, active module can be drawn back, make active module compress pipe 5 behind the matched moulds again, therefore the distortion of pipe 5 is finished gradually, the defective of overlap can not occur managing, and it is excessive or be out of shape inhomogeneous regional area section deformation amount also can not occur.Device of the present invention has in addition adopted hydraulically powered structure, sliding block comes controlled motion by hydraulic-driven, can accurately control stroke dimension, dynamically accurately control the size of die cavity horizontal direction easily, can realize very high control accuracy, the cavity dimension of vertical direction is controlled by the height of matched moulds.This device has high efficiency, and the advantage that applicability is strong has broad application prospects in the lightweight manufacturing of various structures.
Description of drawings:
Fig. 1 is a structural representation of the present invention, Fig. 2 be among Fig. 1 patrix 1 look up structural representation, Fig. 3 is the vertical view of counterdie 2 among Fig. 1, Fig. 4 is the composition structural representation of first die cavity 6, Fig. 5 is the composition structural representation of second die cavity 7, and Fig. 6 is the composition structural representation of the 3rd die cavity 8.
The specific embodiment:
The specific embodiment one: specify present embodiment below in conjunction with Fig. 1 to Fig. 6.It is by patrix 1, counterdie 2 and forcing press 3 are formed, the last end face of patrix 1 is fixedly connected on a 3-1 lower end of exerting pressure of forcing press 3, counterdie 2 is arranged on the below of patrix 1, patrix 1 is by last baffle plate 1-1, left arm upper module 1-2, right arm upper module 1-3, forearm upper module 1-4, left arm upside inner module 1-5, right arm upside inner module 1-6 and lead 1-7 form, be the left arm upside inner module 1-5 of strip and right arm upside inner module 1-6 respectively fore-and-aft direction be distributed on left one side of something and right one side of something of lower surface of baffle plate 1-1, left arm upper module 1-2 is fixed on the last baffle plate 1-1 lower surface in left arm upside inner module 1-5 left side, right arm upper module 1-3 is fixed on the last baffle plate 1-1 lower surface on right arm upside inner module 1-6 right side, forearm upper module 1-4 is fixed on the baffle plate 1-1 lower surface, the end of forearm upper module 1-4 contacts with the front end of left arm upside inner module 1-5, the other end of forearm upper module 1-4 contacts with the front end of right arm upside inner module 1-6, counterdie 2 is by following baffle plate 2-1, left arm outside active module 2-2, right arm outside active module 2-3, forearm lower module 2-5, forearm stuck-module 2-6, forearm active module 2-7, left arm lower module 2-4, right arm lower module 2-12, an oil cylinder 2-8, No. two oil cylinder 2-9, No. three oil cylinder 2-10 and pilot hole 2-11 form, left arm lower module 2-4, right arm lower module 2-12 and forearm lower module 2-5 are fixed on down on the baffle plate 2-1 upper surface, left arm outside active module 2-2 is arranged on the left side of left arm lower module 2-4, on the piston rod of No. three oil cylinder 2-10 under left arm outside active module 2-2 is connected and is fixed on the baffle plate 2-1 upper surface, right arm outside active module 2-3 is arranged on the right side of right arm lower module 2-12, on the piston rod of No. two oil cylinder 2-9 under right arm outside active module 2-3 is connected and is fixed on the baffle plate 2-1 upper surface, forearm stuck-module 2-6 is fixed on forearm lower module 2-5 front side, forearm active module 2-7 is arranged on the rear side of forearm lower module 2-5 and is connected on the piston rod that is fixed in an oil cylinder 2-8 on the following baffle plate 2-1 upper surface, the lower surface of left arm upper module 1-2, the left surface of left arm upside inner module 1-5, the right surface of the upper surface of left arm lower module 2-4 and left arm outside active module 2-2 constitutes first die cavity 6, the lower surface of right arm upper module 1-3, the right surface of right arm upside inner module 1-6, the left surface of the upper surface of right arm lower module 2-12 and right arm outside active module 2-3 constitutes second die cavity 7, the lower surface of forearm upper module 1-4, the upper surface of forearm lower module 2-5, the front surface of the rear surface of forearm stuck-module 2-6 and forearm active module 2-7 constitutes the 3rd die cavity 8.
The specific embodiment two: specify present embodiment below in conjunction with Fig. 2.The difference of present embodiment and embodiment one is: it also comprises left comer sliding block 1-8, right corner sliding block 1-9, No. four oil cylinder 1-10 and No. five oil cylinder 1-11, left comer sliding block 1-8 is arranged on the front left side of left arm upper module 1-2 and forearm upper module 1-4 junction, left comer sliding block 1-8 is connected on the piston rod that is fixed in No. four oil cylinder 1-10 on the baffle plate 1-1 lower surface, right corner sliding block 1-9 is arranged on the forward right side of right arm upper module 1-3 and forearm upper module 1-4 junction, and right corner sliding block 1-9 is connected on the piston rod that is fixed in No. five oil cylinder 1-11 on the baffle plate 1-1 lower surface.So be provided with, help the shaping of pipe 5 at edge.Other composition is identical with embodiment one with connected mode.Left comer sliding block 1-8, right corner sliding block 1-9, No. four oil cylinder 1-10 and No. five oil cylinder 1-11 also can be arranged on the counterdie 2, in addition many group oil cylinders and sliding block can also be set on the counterdie 2 so that the shaping of the complex-shaped hollow structural component of axis.
The specific embodiment three: specify present embodiment below in conjunction with Fig. 4 to Fig. 6.The difference of present embodiment and embodiment one is: the cross sectional shape of first die cavity 6, second die cavity 7 and the 3rd die cavity 8 is rectangle, square, trapezoidal, oval, polygon or curved surface shaped.Present embodiment is formed the die cavity of various cross sectional shapes by changing the shape on four surfaces up and down that participates in moulding, thereby finishes the preform of various cross sectional shape tubing.

Claims (3)

1, a kind of pre-forming device that is used for the hollow structural component internal high pressure forming, it is by patrix (1), counterdie (2) and forcing press (3) are formed, the last end face of patrix (1) is fixedly connected on head (3-1) lower end of exerting pressure of forcing press (3), counterdie (2) is arranged on the below of patrix (1), it is characterized in that patrix (1) is by last baffle plate (1-1), left arm upper module (1-2), right arm upper module (1-3), forearm upper module (1-4), left arm upside inner module (1-5), right arm upside inner module (1-6) and lead (1-7) are formed, be on left one side of something and right one side of something of the left arm upside inner module (1-5) of strip and right arm upside inner module (1-6) is distributed in baffle plate (1-1) respectively along fore-and-aft direction lower surface, left arm upper module (1-2) is fixed on last baffle plate (1-1) lower surface in left arm upside inner module (1-5) left side, right arm upper module (1-3) is fixed on last baffle plate (1-1) lower surface on right arm upside inner module (1-6) right side, forearm upper module (1-4) is fixed on baffle plate (1-1) lower surface, one end of forearm upper module (1-4) contacts with the front end of left arm upside inner module (1-5), the other end of forearm upper module (1-4) contacts with the front end of right arm upside inner module (1-6), counterdie (2) is by following baffle plate (2-1), left arm outside active module (2-2), right arm outside active module (2-3), forearm lower module (2-5), forearm stuck-module (2-6), forearm active module (2-7), left arm lower module (2-4), right arm lower module (2-12), an oil cylinder (2-8), No. two oil cylinders (2-9), No. three oil cylinders (2-10) and pilot hole (2-11) are formed, left arm lower module (2-4), right arm lower module (2-12) and forearm lower module (2-5) are fixed on down on baffle plate (2-1) upper surface, left arm outside active module (2-2) is arranged on the left side of left arm lower module (2-4), on the piston rod of No. three oil cylinders (2-10) under left arm outside active module (2-2) is connected and is fixed on baffle plate (2-1) upper surface, right arm outside active module (2-3) is arranged on the right side of right arm lower module (2-12), on the piston rod of No. two oil cylinders (2-9) under right arm outside active module (2-3) is connected and is fixed on baffle plate (2-1) upper surface, forearm stuck-module (2-6) is fixed on forearm lower module (2-5) front side, forearm active module (2-7) is arranged on the rear side of forearm lower module (2-5) and is connected on the piston rod that is fixed in the oil cylinder (2-8) on following baffle plate (2-1) upper surface, the lower surface of left arm upper module (1-2), the left surface of left arm upside inner module (1-5), the right surface of the upper surface of left arm lower module (2-4) and left arm outside active module (2-2) constitutes first die cavity (6), the lower surface of right arm upper module (1-3), the right surface of right arm upside inner module (1-6), the left surface of the upper surface of right arm lower module (2-12) and right arm outside active module (2-3) constitutes second die cavity (7), the lower surface of forearm upper module (1-4), the upper surface of forearm lower module (2-5), the front surface of the rear surface of forearm stuck-module (2-6) and forearm active module (2-7) constitutes the 3rd die cavity (8).
2, a kind of pre-forming device that is used for the hollow structural component internal high pressure forming according to claim 1, it is characterized in that it also comprises left comer sliding block (1-8), right corner sliding block (1-9), No. four oil cylinders (1-10) and No. five oil cylinders (1-11), left comer sliding block (1-8) is arranged on the front left side of left arm upper module (1-2) and forearm upper module (1-4) junction, left comer sliding block (1-8) is connected on the piston rod that is fixed in No. four oil cylinders (1-10) on baffle plate (1-1) lower surface, right corner sliding block (1-9) is arranged on the forward right side of right arm upper module (1-3) and forearm upper module (1-4) junction, and right corner sliding block (1-9) is connected on the piston rod that is fixed in No. five oil cylinders (1-11) on baffle plate (1-1) lower surface.
3, a kind of pre-forming device that is used for the hollow structural component internal high pressure forming according to claim 1, the cross sectional shape that it is characterized in that first die cavity (6), second die cavity (7) and the 3rd die cavity (8) are rectangle, square, trapezoidal, oval, polygon or curved surface shaped.
CNB2005100096467A 2005-01-19 2005-01-19 Pre-forming device in hollow structure high-pressure forming process CN1314496C (en)

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CN102744344A (en) * 2012-07-30 2012-10-24 嘉禾县刀王刀具有限公司 Knife back forming machine
CN102806248A (en) * 2012-08-06 2012-12-05 哈尔滨工业大学 Device and method for testing real-time changes of fillet radius along with internal pressure in internal high-pressure forming process

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CN100551575C (en) * 2006-03-31 2009-10-21 (株)星宇Hitech Hydraulic forming press system and drawing method thereof
US8020419B2 (en) * 2008-04-15 2011-09-20 GM Global Technology Operations LLC Hydroforming die adjustable for springback correction
CN101391275B (en) * 2008-04-29 2012-11-07 武汉舒居科技有限公司 Inner-tension deformation bender
CN101927291B (en) * 2009-06-22 2012-11-14 宝山钢铁股份有限公司 Pre-forming method for tube hydroforming and device thereof
CN102049443B (en) * 2010-11-12 2012-12-05 哈尔滨工业大学 Hydraulic forming method of asymmetric hollow pipe fitting of high expansion capacity
CN105300802B (en) * 2015-10-20 2017-11-03 哈尔滨工业大学 A kind of light-wall pipe two-dimensional state of stress stress-strain measurement device and method
CN106734493B (en) * 2016-12-20 2018-06-26 桂林电子科技大学 A kind of middle-size and small-size internal high-pressure forming machine of bulging pressure fluctuation loading
CN106862363A (en) * 2017-04-14 2017-06-20 济南大学 Internal high pressure forming die
CN107243538A (en) * 2017-08-08 2017-10-13 天津天锻航空科技有限公司 A kind of method that big girth rectangle is shaped by Xiao Zhou's Circular Pipe
CN110743956A (en) * 2019-11-04 2020-02-04 哈尔滨工业大学 Ellipsoid shell shaft length size control method and system based on liquid volume loading
CN111390007B (en) * 2020-04-01 2020-12-11 哈尔滨工大海卓智能成形科技有限公司 Liquid-filled lateral extrusion forming device and method

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CN102744344A (en) * 2012-07-30 2012-10-24 嘉禾县刀王刀具有限公司 Knife back forming machine
CN102744344B (en) * 2012-07-30 2014-12-24 嘉禾县刀王刀具有限公司 Knife back forming machine
CN102806248A (en) * 2012-08-06 2012-12-05 哈尔滨工业大学 Device and method for testing real-time changes of fillet radius along with internal pressure in internal high-pressure forming process

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Application publication date: 20050727

Assignee: JIANGSU JIEDA SPECIFIC NEW MATERIAL CO., LTD.

Assignor: Harbin Institute of Technology

Contract record no.: 2014320000162

Denomination of invention: Pre-forming device in hollow structure high-pressure forming process

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Application publication date: 20050727

Assignee: JIANGSU JIEDA SPECIFIC NEW MATERIAL CO., LTD.

Assignor: Harbin Institute of Technology

Contract record no.: 2014320000162

Denomination of invention: Pre-forming device in hollow structure high-pressure forming process

Granted publication date: 20070509

License type: Exclusive License

Record date: 20140305

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Address after: 150001 No. 434, postal street, Nangang District, Heilongjiang, Harbin

Co-patentee after: Han Cong

Patentee after: Harbin Institute of Technology Asset Investment Management Co., Ltd.

Co-patentee after: Cao Jian

Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92

Patentee before: Harbin Institute of Technology

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Effective date of registration: 20200317

Address after: 150081 No.20 Nanhai Road, Haiping road concentration area, economic development zone, Harbin City, Heilongjiang Province

Patentee after: HIT HYDRO INTELLIGENT FORMING TECHNOLOGY Co.,Ltd.

Address before: 150001 No. 434, postal street, Nangang District, Heilongjiang, Harbin

Co-patentee before: Han Cong

Patentee before: Harbin Institute of Technology Asset Investment Management Co., Ltd.

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