CN104475530B - The sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path - Google Patents

The sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path Download PDF

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Publication number
CN104475530B
CN104475530B CN201410655469.9A CN201410655469A CN104475530B CN 104475530 B CN104475530 B CN 104475530B CN 201410655469 A CN201410655469 A CN 201410655469A CN 104475530 B CN104475530 B CN 104475530B
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China
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clamping
slab
motion
mould
sheet
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CN201410655469.9A
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CN104475530A (en
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吴向东
龙安林
王文平
万敏
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Beihang University
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Beihang University
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Abstract

The present invention discloses the sheet material high energy rate forming frock of band displacement self-locking chuck under a kind of compound movement path, including slab clamping device, mould clamping device, bottom support frame and movement executing mechanism.Slab clamping device is self-locking clamping device based on angle of friction principle, is arranged on bottom support frame front and rear part.Mould clamping device is enclosed force structure, realizes mould during high energy rate forming, blank holder and the clamping of solenoid by general-purpose interface, and bears the impulse load in forming process.On the slide rail that mould clamping device is arranged before and after being installed on bottom support frame.Movement executing mechanism is used for realizing the motion in general-purpose interface space X, Y, Z-direction in mould clamping clamping device, it is achieved that complicated motion path, and realizes compound movement path by detecting and controlling system and control the size of chucking power.The fixed point that can meet small size part shapes, and also can complete large-scale part multiple spot under compound movement path, multi-step forming.

Description

The sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path
Technical field
The present invention relates to high energy rate forming technical field, specifically, be that a kind of sheet material high energy rate forming technique uses , the sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path.
Prior art
High energy rate forming is also referred to as high-rate forming, and during shaping, energy is converted into the high pressure in surrounding medium in very short time Shock wave, and act on blank with the form of impulse wave, make blank produce plastic deformation.Its concrete form include electro-magnetic forming, Electro-hydraulic forming, ESF and explosive forming.
Sheet material high energy rate forming process has a following general character:
1., during sheet material high energy rate forming, slab obtains energy from energy storage device.Electro-magnetic forming, electro-hydraulic forming and electricity Bursting into shape and obtain electric energy from Capacitor banks, explosive forming obtains chemical energy from explosive substance.Slab starts after obtaining energy Motion, completes deformation under the effect of mould and inertia force, obtains the part after high energy rate forming.Part shape depends on mould Profile and the patch mould degree of part and mould.When not using mould, part shape is by the initial velocity of sheet material each several part and answers Power relation determines.
2., energy is extremely short for release time during high energy rate forming, only Microsecond grade, and deformation time is Millisecond.? In the time of some milliseconds, the energy in energy storage device is converted into the plastic deformation ability of sheet material.Energy release process at a high speed is wanted Discharge loop conducting and explosive substance is asked to ignite and must complete within the shorter time.During actual application, these actions are all By triggering what circuit completed.
3., during sheet material high energy rate forming, mould and slab are required for positioning and clamping.
At present, the frock used during high energy rate forming exists following not enough:
1, do not possess that automatization's feature, mould or blank holder are many to be clamped for fixture with pressing plate, load and unload before and after shaping Loaded down with trivial details, clumsy, it is installed and dismantles the used time much larger than the blank forming time, efficiency is low.
2, clamping force size can not be controlled, flanging in Sheet Metal Forming will be directly affected when clamping object and being blank holder The size of power, the mobile performance of remote-effects material and forming effect.
3, too much manual operation causes formation of parts quality inconsistent, repeatable poor.
4, it is designed just for a certain kind in above-mentioned concrete forming mode, not there is versatility.
5, for mini-boules, it is impossible to shape large-scale part.
Through to existing domestic and international patented technology literature search, obtain the patent similar to the present invention as follows:
Chinese patent Authorization Notice No. is CN 100447690C, invention entitled: sheet material moving-coil electromagnetism progressive molding method And device.This invention, by the way of Progression and hierarchy Plastic Forming, implements sequential local plastic by little electromagnetic pulse power The method shaping build up as large deformation is processed into sheet metal the thin shell piece of 3 D complex curve form progressively.But its Being only limitted to the application in low-intensity Thin-shell blank electro-magnetic forming direction, plastic force is little, and versatility is poor.Additionally, its clamping dress Putting relative position non-adjustable, blank size is fixed, it is impossible to change blank size, adaptability and economy according to practical condition Poor.
To sum up, the most domestic the sheet material high energy rate forming work with versatility being now able to overcome above-mentioned deficiency is not yet gone out Dress.
Summary of the invention
For the problems referred to above, the general character being had during the present invention comprehensive sheet material high energy rate forming, and consider large scale Slab shapes and forming process automatization requires to be designed, and proposes band displacement self-locking chuck under a kind of compound movement path Sheet material high energy rate forming frock, can be as the general-purpose platform of sheet material high energy rate forming.
The sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path of the present invention, including slab clamping machine Structure, mould clamping device, bottom support frame and movement executing mechanism.
Described slab clamping device is used for fixing slab, including installing rack, jaw and clamp system;Jaw passes through installing rack Support;Clamp system is set in jaw;Clamp system includes crank, position adjustments block, adjusting rod, clamping block and spring A;Crank One end is hinged with jaw end face, and the other end is hinged with clamping block;Horizontally disposed position adjustments block it is cased with on crank;Position adjustments It is hinged that block is positioned at adjusting rod one end;It is cased with spring A, spring A on adjusting rod and is positioned at U-shaped connection end and the jaw side of adjusting rod Between;Slab is arranged between clamping block and jaw bottom surface, and adjusting rod moves to jaw opening direction in the effect of spring A pressure, Making crank rotate to jaw opening direction by position adjustments block, during this, crank gradually subtracts with the angle α of vertical normal Little, clamping block is gradually reduced with jaw basal spacing, and then under the effect of crank, clamping block is pressed on slab;Above-mentioned plate Base clamping device is arranged on bottom support frame rear and front end by installing rack.
Mould clamping device includes that installation frame, leading screw connect assembly, load nut and general-purpose interface.Wherein, installing frame Frame is rectangular frame;End face is provided with slide rail A in left-right direction;Slide block A is installed on slide rail A;Slide block A bottom surface is solid with force bearing plate Even;Leading screw connects assembly and includes leading screw, thrust ball bearing and bearing (ball) cover;Wherein, leading screw is vertically arranged in below force bearing plate, top Portion's socket thrust ball bearing;Between leading screw top and force bearing plate bottom surface, taper roll bearing is set;Screw thread on the thread segment of leading screw Being provided with load nut, load nut bottom is fixed with general-purpose interface;Above-mentioned mould clamping device is by mounting base two ends The slide rail B that installation slide block B is installed with the bottom support frame left and right sides is connected, and is arranged in bottom support frame.
Described motion driving mechanism includes that X is to drive mechanism, Y-direction motion and Z-direction motion;Wherein, X is to driving Mechanism and Y-direction motion by ball-screw drive mould clamping device entirety X to the fortune of motion and general-purpose interface Y-direction Dynamic.Z-direction motion drives screw turns by drive pulley, it is achieved the up and down motion of general-purpose interface.
It is an advantage of the current invention that:
1, present invention achieves the motion path of complexity, the fixed point that can meet small size part shapes, and also can complete big Size parts multiple spot under compound movement path, multi-step forming;
2, present invention achieves the automatization of high energy rate forming process, overcome loaded down with trivial details problem of loading and unloading in current frock, Saving labour force and time, work efficiency is improved;
3, the present invention only need to can become for concrete high-duty during work as the universal fixture during high energy rate forming Shape mode is placed corresponding mould and connects discharge equipment or place explosive substance;
4, the slab clamping device that the present invention uses has self-locking and automatically adapts to the function of sheet metal thickness change, and clamping is steady Fixed reliable;And slab clamping device horizontally and vertically position is the most adjustable, it is suitable for the change of blank planar dimension and mold height Change;
5, the size of clamping force during the present invention is accurately controlled high energy rate forming, eliminates the anthropic factor shadow to forming effect Ringing, formation of parts is reproducible;
6, the present invention with the size of impulse load during sheet material measurement high energy rate forming, and can pass through Software on Drawing Force-displacement curve, provides data for scientific research;
7, the present invention uses closed frame structure stress, and the impulse load produced in forming process is limited to frame structure Parts beyond inside, effectively protection force structure, improve frock service life;
8, the present invention applies quite varied, can complete multiple plate stamping processing, such as drawing, bulging, school shape, impressing, Flange, stamping-out etc..Additionally, high energy rate forming can be additionally used in powder compacting, vibration strippings, surface peening, pipe fitting connection, sheet material multiple Conjunction and part riveting etc.;The present invention is that above-mentioned technique provides work platforms, can enough bear bigger impulse load, Ji Ke Laboratory is used for some simple basic tests, it is also possible to for factory's actual production, there is wide application space And development prospect.
Accompanying drawing explanation
Fig. 1 is sheet material high energy rate forming frock overall structure schematic diagram of the present invention;
Fig. 2 is slab clamping device structural representation in sheet material high energy rate forming frock of the present invention;
Fig. 3 is slab clamping device structure schematic side view in sheet material high energy rate forming frock of the present invention;
Fig. 4 is mould clamping device structural representation in sheet material high energy rate forming frock of the present invention;
Fig. 5 is leading screw connecting component structure schematic diagram in mould clamping device;
Fig. 6 is Y-direction motion mounting means schematic diagram in sheet material high energy rate forming frock of the present invention;
Fig. 7 is Z-direction motion mounting means schematic diagram in sheet material high energy rate forming frock of the present invention;
Fig. 8 is bottom support rack construction schematic diagram in sheet material high energy rate forming frock of the present invention;
Fig. 9 a is slab electro-hydraulic forming threedimensional model semi-cutaway;
Fig. 9 b is conical part semi-cutaway after slab electro-hydraulic forming;
Figure 10 a is slab electro-magnetic forming three-dimensional model diagram;
Figure 10 b is single-curvature part after slab electro-magnetic forming;
Figure 11 a is blast stamping-out large scale slab threedimensional model semi-cutaway;
Figure 11 b is the special-shaped part figure that obtains after blast stamping-out;
Figure 11 c is the defective material figure after blast stamping-out.
1-slab clamping device 2-mould clamping device 3-bottom support frame
4-slab 5-liquid chamber 6-electrode
7-die 8-electro-magnetic forming coil 9-explosive substance filled chamber
10-explosive substance 11-punching and blanking die 101-installing rack
102-jaw 103-jaw detent mechanism 104-clamp system
201-mounting seat 202-leading screw connects assembly 203-load nut
204-general-purpose interface 205-slide rail A 206-slide block A
207-force bearing plate 208-mounting cylinder 209-slide block B
210-slide rail B 103a-adjusting nut 103b-connecting rod
103c-sleeve 103d-pad 103e-spring B
104a-crank 104b-position adjustments block
104c-adjusting rod 104d-clamps block 104e-spring A
104f-chute 201a-bottom platform 201b-column
201c-crossbeam 202a-leading screw 202b-thrust ball bearing
202c-taper roll bearing 301-mounting rail 302-installing hole
401-ball-screw A 402-ball-screw B 403-drives motor A
404-drives motor B 405-big belt wheel 406-small pulley
407-transmission band 408-drives motor C 409-motor mount
501-X to grating displacement sensor 502-Y to grating displacement sensor 503-Z to high-frequency pressure sensor
504-controller 501a-X to long chi 501b-X to read head
502a-Y to long chi 502b-Y to read head 504a-power supply
504b-industrial computer 504c-amplifier 504d-data collecting card
504e-triggers circuit 601-guide post 602-and guides bar
Detailed description of the invention
Sheet material high energy rate forming frock of the present invention, including slab clamping device 1, mould clamping device 2, bottom support frame 3, as it is shown in figure 1, and movement executing mechanism and detecting and controlling system.
Described slab clamping device 1 uses self-locking clamping device based on angle of friction principle, including installing rack 101, pincers Mouth 102, jaw detent mechanism 103 and clamp system 104, as shown in Figure 1.Wherein, jaw 102 is positioned at installing rack 101 side, opens Mouth direction is towards homonymy.Arranging clamp system 104 in jaw 102, clamp system 104 includes crank 104a, position adjustments block 104b, adjusting rod 104c, clamping block 104d and spring A104e;Crank 104a one end is hinged with jaw 102 end face, the other end with Block 104d is hinged in clamping;Being cased with on crank 104a can be along crank 104a position adjustments block 104b in axial sliding.Position adjustments block 104b be positioned at adjusting rod 104c one end design U-shaped connection end, with U-shaped be connected between end hinged;Adjusting rod 104c is horizontally disposed with, Free end passes jaw 102 side and the vertical chute 104f of design on installing rack 101.It is cased with spring on adjusting rod 104c A104e, spring A104e are positioned between the U-shaped connection end of adjusting rod 104c and jaw 102 side.Slab 4 is clamped in said structure In, need to ensure that the crank 104a angle α with vertical normal is (i.e. when crank 104a deviates vertical state, to installing rack 101 direction The maximum angle swung) at angle of friction(size of angle of friction is determined by the surface nature of two contact materials) interior change procedure In, spring A104e has pressure all the time.Thus, slab 4 is arranged between clamping block 104d and jaw 102 bottom surface, adjusting rod 104c spring A104e pressure effect to jaw 102 opening direction move, by position adjustments block 104b make crank 104a to Jaw 102 opening direction rotates, and during this, angle α is gradually reduced, and clamping block 104d gradually subtracts with jaw 102 basal spacing Little, and then under the effect of crank 104a, clamping block 104d is pressed on slab 4.For opposing slab 4 normal direction perturbed force to clamping The impact of stability, should make spring A104e pressure the biggest, increases the clamping block 104d normal pressure to slab 4.When pulling Push rod make position adjustments block 104b along crank 104a axially-movable, and then drive crank 104a rotate to installing rack 101 direction, this During, angle α is gradually increased, and clamping block 104d is gradually increased with jaw 102 basal spacing, and different angle α correspondences is different Slab 4 thickness, make slab clamping device 1 have the ability automatically adapting to slab 4 thickness.
Jaw detent mechanism 103, it is achieved the regulation of vertical position and location between jaw 102 and installing rack 101, and then realize The vertical position of slab clamping device 1 adjusts and location.Jaw detent mechanism 103 includes adjusting nut 103a, connecting rod 103b, set Cylinder 103c, pad 103d and spring B 103e, as shown in Figure 3;Wherein, what connecting rod 103b was passed through on installing rack 101 is vertical Sleeve 103c in chute 104f, fixing end is connected with jaw 102 side;Spring B 103e, spring it is cased with on connecting rod 103b B103e one end is positioned by the pad 103d being cased with on connecting rod 103b, the other end and sleeve 103c lip fits.Sleeve 103c overlaps On connecting rod 103b, one end circumference has flange, fit with installing rack 101 side;Adjusting nut 103a thread bush is connected on set On cylinder 103c.Thus, by tightening adjusting nut 103a, sleeve 103c and adjusting nut 103a is made to be clamped on installing rack 101, Realize the location between jaw 102 and installing rack 101;When unclamping nut 103a, now jaw 102 is at installing rack 101 vertical direction Upper position is adjustable.Said structure slab clamping device 1 is arranged on bottom support frame 3 rear and front end by installing rack 101, is used for Fixing slab 4, prevents slab 4 collecting together in forming process.
Mould clamping device 2 is the clamping of the part such as mould, blank holder and solenoid during high energy rate forming, And bear the impulse load in forming process.Impulse load according to producing in high energy rate forming can make clamping device shake Dynamic feature, is designed to mould clamping device 2 enclosed force structure, and then strengthens its rigidity of structure so that vibration declines rapidly Subtract, the most effectively the remaining part beyond protection mould clamping device 2.Mould clamping device 2 includes installation frame 201, leading screw Connect assembly 202, load nut 203 and general-purpose interface 204.
Wherein, installation frame 201 includes bottom platform 201a, column 201b, crossbeam 201c;Two column 201b vertically fix In the bottom platform 201a left and right sides, between two column 201b tops, crossbeam 201c is installed.Crossbeam 201c bottom surface is in left-right direction Slide rail A205 is installed;The slide block A206 slided along slide rail A205 is installed on slide rail A205.Slide block A206 bottom surface and force bearing plate 207 are connected;Force bearing plate 207 is used for bearing leading screw and connects the service load of assembly 202 transmission, and the installation of remaining part and company Connect.Leading screw connects assembly 202 and includes leading screw 202a, thrust ball bearing 202b and bearing (ball) cover 202d, as shown in Figure 5.Wherein, silk Thick stick 202a top design cylindric erecting bed A, erecting bed A is socketed thrust ball bearing 202b.Leading screw 202a tip designs is limited Position flange, for moving upward of limit thrust ball bearing 202b.Leading screw 202a top sets jointly together with thrust ball bearing 202b Put in the mounting cylinder 208 of force bearing plate 207 bottom center Position Design, and make connection leading screw 202 coaxial with mounting cylinder 208;Peace Fitted tube 208 bottom is sealed by the bearing (ball) cover 202d being enclosed within leading screw a202, and makes thrust ball bearing 202b be overlapped on bearing On end cap 202d, limit thrust ball bearing 202b moves downward, and then realizes the axial location of thrust ball bearing 202b.Above-mentioned peace It is additionally provided with taper roll bearing 202c, taper roll bearing 202c in fitted tube 208 and is arranged at leading screw 202a top and force bearing plate Between 207 bottom surfaces;Taper roll bearing 202c bottom surface is fixed with leading screw 202a top.From there through taper roll bearing 202c with Leading screw 202a axial freedom is fixed by thrust ball bearing 202b, effectively reduces frictional force by rolling friction, and top circular cone rolls Sub-bearing 202c is simultaneously also subject to the service load of leading screw 202a transmission.On the thread segment of leading screw 202a, screw thread is provided with load spiral shell Female 203, load nut 203 bottom is fixed with general-purpose interface 204, general-purpose interface 204 for and bottom platform between mould, flanging The connection of the moulds such as circle, pressing plate, solenoid be fixedly clamped.Described load nut 203 has the length on axially, for general Interface 204 provides the regulation surplus on vertical height.Rotation from there through leading screw 202a can drive nut along leading screw 202a axle To position adjustments, and then realize the vertical direction position adjustments of general-purpose interface 204.In the present invention, general-purpose interface 204 is for adapting to Mould or the size variation of coil, use and have the cross structure that the uniform lug of circumference is constituted, each lug has bar Type slotted eye, is used for being connected with mould or solenoid.Above-mentioned mould clamping device 2 by installing slide block at mounting base two ends The slide rail B210 that B209 installs with bottom support frame 3 left and right sides is connected, and is arranged in bottom support frame 3, such as Fig. 1 institute Show.
Described motion driving mechanism includes that X is to drive mechanism, Y-direction motion and Z-direction motion;Wherein, X is to driving Mechanism is constituted with driving motor by ball-screw with Y-direction motion;Be respectively intended to realize the overall X of mould clamping device 2 to Motion and general-purpose interface 204Y to motion.Make X to ball-screw in Y-direction motion be respectively ball-screw A401 with Ball-screw B402;Driving motor to be respectively drives motor A403 to drive motor B404;Then:
As it is shown in figure 1, X is in drive mechanism, ball-screw A401 two ends respectively be arranged on bottom support frame 3 before and after The bearing block at two ends connects;Ball-screw 401 one end and driving motor A402 output shaft fixed connection.Nut on ball-screw 401 It is connected with bottom platform 201a.Thus, by driving motor A402 to drive ball-screw A401 to move, drive mounting platform along rolling Ballscrew A401 axially-movable, and then realize whole mould clamping device 2 along ball-screw A401 axially-movable, connect including general Mouth 204 is along the axially-movable of ball-screw A401.
As shown in Figure 6, in Y-direction motion, ball-screw B403 two ends are respectively by bearing and mould clamping device 2 Two column 201b bearings connect;Ball-screw B403 one end and driving motor B404 output shaft fixed connection.On ball-screw B403 Nut is connected with force bearing plate in mould clamping device 2 207.Thus, by driving motor B404 to drive ball-screw B403 to move, Drive force bearing plate 207 along ball-screw B403 axially-movable, and then realize general-purpose interface 204 and axially transport along ball-screw B403 Dynamic.
Z-direction motion, by big belt wheel 405, small pulley 406, transmission band 407, drives motor C408 and motor mount 409 are constituted, as it is shown in fig. 7, be used for realizing the up and down motion of general-purpose interface 204.Wherein, motor C408 is driven to be installed by motor Seat 409 is arranged on force bearing plate 207, drives and is socketed small pulley 406 on the output shaft of motor C408.Big belt wheel 405 is fixedly sleeved Leading screw 202a top in mould clamping device 2;The big transmission band 407 that passes through between belt wheel 405 with small pulley 406 is connected.Thus, By driving motor C408 drive small pulley 406 and drive transmission between big belt wheel 405, and then leading screw 202a is driven to rotate, it is achieved The up and down motion of general-purpose interface 204.The also vertically-mounted guiding of force bearing plate 207 lower surface in mould clamping device 2 in the present invention Bar 601, and be transversely mounted on load nut 203 guiding bar 602, make guiding bar 602 end sleeve on guide post 601, thus Realize the guiding that general-purpose interface 204 moves up and down.
In the present invention, bottom support frame 3 is welded by cold-bend hollow profiled bar, simple in construction, provides for whole frock and props up Support.Frame is that slab clamping device provides different installation sites simultaneously, to meet the slab folder of different length or width Holding requirement, concrete mode is: as shown in Figure 8, designs n bar mounting rail 301, n > 1 in bottom support frame 3 along the longitudinal direction, Thus, at the mounting rail 301 upper mounting plate base clamping device 1 of two different spacing, it is achieved adapt to the folder of different length slab 4 Hold;Equally, at the correspondence position of each mounting rail 301, axially offer m installing hole 302, m along mounting rail 301 > 2, it is used for pacifying Dress slab clamping device 1, by selecting two installing holes 302 that spacing is different to install slab clamping device 1, to adapt to difference The clamping of width slab 4.
Described detecting and controlling system includes that X is to grating displacement sensor 501, Y-direction grating displacement sensor 502, Z-direction high frequency Pressure transducer 503 and controller composition.Wherein, X is used for detecting mould clamping device 2X side to grating displacement sensor 501 To displacement;X is installed on bottom to long chi 501a along bottom support frame 3 fore-and-aft direction to the X of grating displacement sensor 501 Support frame 3 side;X is installed on mounting base lower surface in mould clamping device 2 to read head 501b, can be with mould clamping device 2 move.Y-direction grating displacement sensor 502 is used for detecting the displacement in general-purpose interface 204Y direction, as shown in Figure 1.Y-direction grating position The Y-direction long chi 502a of displacement sensor 502 is axially mounted to crossbeam 201c side along mould clamping device 2 middle cross beam 201c;Y-direction is read Several 502b are installed on the nut of ball-screw B403, and Z-direction high-frequency pressure sensor 503 is used for detecting slab 4 as shown in Figure 6 Impulse load size in the size of shaping fore-clamp holding force and forming process;Z-direction high-frequency pressure sensor 503 is arranged on mould holder In the mounting cylinder 208 held in mechanism 2 on force bearing plate 207, it is positioned between taper roll bearing 202c and force bearing plate 207 lower surface.
Described controller includes power supply, industrial computer, amplifier, data collecting card and triggering circuit.Wherein, power supply is for being The present invention drives motor A, B, C and X, Y, Z-direction sensor power;Amplifier is used for gathering Z-direction high-frequency pressure sensor Pressure signal be amplified, and send to A/D converter, the analog-signal transitions after being amplified by A/D converter is number Word signal;By data collecting card collection digital signal after A/D converter is changed, and send to industrial computer;Industrial computer root According to the position signalling received to driving motor A, B, C to send control signal, control to drive motor A, B work, it is achieved complicated fortune The control in dynamic path;Industrial computer is according to the pressure signal received simultaneously, to driving motor C to be controlled, thus realizes clamping The control of power size.After operating position and clamping force size are satisfied by requiring, industrial computer controls Guan Bi and triggers circuit, makes triggering Circuit produces an impulse voltage flashover external series gap, makes discharge loop conducting complete electro-hydraulic forming, ESF and electricity The electric discharge such as magnetic forming shapes, or utilizes isolating partition to puncture the explosive substance in the spark initiation explosive forming of moment generation, Complete explosive forming.Thus, control general-purpose interface by controller and make this in the cooperation of tri-direction motions of X, Y, Z The bright high energy rate forming work that can complete slab 4 under arbitrary motion path.
Embodiment one: use sheet material high energy rate forming frock of the present invention to carry out electro-hydraulic forming conical part.
Fig. 9 (a) is slab 4 electro-hydraulic forming threedimensional model semi-cutaway, including liquid chamber 5, electrode 6, slab 4 and die 7, recessed Mould 7 top is with steam vent, and Fig. 9 (b) is conical part semi-cutaway after shaping.Less owing to shaping slab area, therefore need not Clamped by slab clamping device 1, liquid chamber 5 is directly set in bottom platform 201a in mould clamping device 2, by slab 4 are placed on liquid chamber upper surface, perforate fixed installation electrode 6 on liquid chamber 5 sidewall, clamp system 104 in regulation slab clamping device 1 Height, make slab 4 lower surface be close to liquid chamber 5 end face;It is arranged above die 7, by regulation mould at slab 4 end face liquid chamber 5 In tool clamping device 2, the position of general-purpose interface 204, is fixed three between liquid chamber 5, slab 4 and die 7;During this, when After controller detection clamping force reaches requirement, control to trigger circuit turn-on discharge loop, make the electric energy being stored in Capacitor banks Abrupt release, completes electro-hydraulic forming.
Embodiment two: use sheet material high energy rate forming frock of the present invention to carry out electro-magnetic forming single-curvature part.
Figure 10 (a) is slab 4 electro-magnetic forming threedimensional model, including electro-magnetic forming coil 8, slab 4 and die 7, Figure 10 B () is single-curvature part after shaping.During shaping, die 7 is arranged in mould clamping device 2 in bottom platform 201a, slab 4 It is placed on die.Electro-magnetic forming coil 8 is lifted on the lug of general-purpose interface 204 at stripe shape slotted eye by its both sides installing hole, Realize being connected with load nut 203;Control general-purpose interface by switch board 7 to move downward so that electro-magnetic forming coil and slab 4 End face contacts, and subsequently by controlling triggering circuit turn-on discharge loop, makes the electric energy abrupt release being stored in Capacitor banks, complete Become the electro-magnetic forming of single-curvature part.
Embodiment three: use sheet material high energy rate forming frock of the present invention to carry out the stamping-out large scale slab 4 that explodes.
Figure 11 (a) is blast stamping-out large scale slab 4 threedimensional model semi-cutaway, including explosive substance filled chamber 9, explosive Matter 10, slab 4 and punching and blanking die 11, Figure 11 (b) is the special-shaped part obtained after stamping-out.Slab 4 specification be 1200mm × 500mm×2mm.During stamping-out, being arranged in mould clamping device 2 in bottom platform 201a by punching and blanking die 11, explosive substance is filled out Fill room 9 and be lifted on the lug of general-purpose interface 204 at stripe shape slotted eye by installing hole on it;Arrange in explosive substance filled chamber 9 Explosive substance 10, according to length and the width of slab 4, chooses correct position in bottom support frame 3 and installs slab clamping device 1, By slab clamping device 1, slab 4 is clamped.Control general-purpose interface 204 by controller to move, explosive substance is filled Room 9, punching and blanking die 11 require to position according to blanking sample layout, fill explosive substance 10 and clamp behind location, control subsequently to touch Power Generation Road ignites explosive substance, completes a shaped piece stamping-out.Repeat above-mentioned blanking process, until completing whole large scale slab The stamping-out operation of 4.Large scale slab 4 remains stationary as in whole operation process, stamping-out complete after defective material, such as Figure 11 (c) institute Show.If explosive filled chamber 1 is replaced by electromagnetic cutting coil, then this technique is electromagnetic pulse stamping-out.

Claims (10)

1. the sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path, it is characterised in that: include that slab presss from both sides Hold mechanism, mould clamping device, bottom support frame and movement executing mechanism;
Described slab clamping device is used for fixing slab, including installing rack, jaw and clamp system;Jaw is propped up by installing rack Support;Clamp system is set in jaw;Clamp system includes crank, position adjustments block, adjusting rod, clamping block and spring A;Crank one Holding hinged with jaw end face, the other end is hinged with clamping block;Horizontally disposed position adjustments block it is cased with on crank;Position adjustments block It is positioned at adjusting rod one end hinged;It is cased with spring A, spring A on adjusting rod to be positioned between the U-shaped connection end of adjusting rod and jaw side; Slab is arranged between clamping block and jaw bottom surface, and adjusting rod moves to jaw opening direction in the effect of spring A pressure, passes through Position adjustments block makes crank rotate to jaw opening direction, and during this, crank is gradually reduced with the angle α of vertical normal, folder Tight block is gradually reduced with jaw basal spacing, and then under the effect of crank, clamping block is pressed on slab;Above-mentioned slab clamps Mechanism is arranged on bottom support frame rear and front end by installing rack;
Mould clamping device includes that installation frame, leading screw connect assembly, load nut and general-purpose interface;Wherein, installation frame is Rectangular frame;End face is provided with slide rail A in left-right direction;Slide block A is installed on slide rail A;Slide block A bottom surface is connected with force bearing plate; Leading screw connects assembly and includes leading screw, thrust ball bearing and bearing (ball) cover;Wherein, leading screw is vertically arranged in below force bearing plate, top Socket thrust ball bearing;Between leading screw top and force bearing plate bottom surface, taper roll bearing is set;Screw thread peace on the thread segment of leading screw Equipped with load nut, load nut bottom is fixed with general-purpose interface;Above-mentioned mould clamping device is by pacifying at mounting base two ends The slide rail B that dress slide block B is installed with the bottom support frame left and right sides is connected, and is arranged in bottom support frame;
Described movement executing mechanism includes that X is to drive mechanism, Y-direction motion and Z-direction motion;Wherein, X is to drive mechanism With Y-direction motion by ball-screw drive mould clamping device entirety X to the motion of motion and general-purpose interface Y-direction;Z-direction Motion drives screw turns by drive pulley, it is achieved the up and down motion of general-purpose interface.
2. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: also there is X to grating displacement sensor, Y-direction grating displacement sensor, Z-direction high-frequency pressure sensor and controller group Become;Wherein, X is used for detecting the displacement of mould clamping device X-direction to grating displacement sensor;Y-direction grating displacement sensor is used Detect the displacement of general-purpose interface Y-direction;Z-direction high-frequency pressure sensor be used for detect slab shape fore-clamp holding force size and Impulse load size in forming process.
3. the sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path as claimed in claim 1 or 2, it is special Levy and be: also there is controller, including power supply, industrial computer, amplifier, data collecting card and triggering circuit;Wherein, power supply is used for For X driving motor in drive mechanism, Y-direction motion, Z-direction motion and X to grating displacement sensor, Y-direction light Displacement transducer, Z-direction high-frequency pressure sensor are powered;Amplifier is used for the pressure letter gathering Z-direction high-frequency pressure sensor Number being amplified, and send to A/D converter, the analog-signal transitions after being amplified by A/D converter is digital signal;Logical Cross data collecting card collection digital signal after A/D converter is changed, and send to industrial computer;Industrial computer is according to receiving Position signalling sends control signal to X driving motor in drive mechanism, Y-direction motion;Industrial computer is according to reception simultaneously The pressure signal arrived, is controlled the driving motor in Z-direction motion;When operating position and clamping force size are satisfied by wanting After asking, industrial computer controls Guan Bi and triggers circuit, makes triggering circuit produce an impulse voltage flashover external series gap, makes discharge loop Conducting.
4. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: the vertical position regulation on installing rack of described clamp system is regulated by jaw detent mechanism, and jaw detent mechanism includes adjusting Joint nut, connecting rod, sleeve, pad and spring B;Wherein, connecting rod is passed through the sleeve in the vertical chute on installing rack, Gu Fixed end is connected with jaw side;Being cased with spring B on connecting rod, spring B one end is positioned by the pad being cased with on connecting rod, the other end with Sleeve flange is fitted;Sleeve is enclosed within connecting rod, and one end circumference has flange, fits with installing rack side;Adjusting nut screw thread It is socketed on sleeve.
5. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: described leading screw top is together with thrust ball bearing, and taper roll bearing is co-located on force bearing plate bottom center position In the mounting cylinder of design, mounting cylinder bottom is sealed by the bearing (ball) cover being enclosed within leading screw, makes thrust ball bearing be overlapped on bearing On end cap.
6. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: described general-purpose interface is to adapt to mould or the size variation of coil, uses and there is the ten of the uniform lug composition of circumference Word structure, each lug has stripe shape slotted eye.
7. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: described X is in drive mechanism, and ball-screw two ends connect with the bearing block being arranged on bottom support frame rear and front end respectively Connect;Ball-screw one end is connected with driving motor output shaft;Nut on ball-screw is connected with bottom platform;
In Y-direction motion, ball-screw two ends are connected with two column bearings in mould clamping device by bearing respectively;Ball Leading screw one end is connected with driving motor output shaft;Nut on ball-screw is connected with force bearing plate in mould clamping device;
In Z-direction motion, including big belt wheel, small pulley, transmission band, drive motor and motor mount;Wherein, motor is driven It is arranged on force bearing plate by motor mount, drives and on the output shaft of motor, be socketed small pulley;Big belt wheel is fixedly sleeved at mould Leading screw top in tool clamping device;It is connected by transmission band between belt wheel with small pulley greatly.
8. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: the vertically-mounted guide post of force bearing plate lower surface in described mould clamping device, and is transversely mounted guiding on load nut Bar, makes guiding boom end overlap on the guide bar.
9. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 1 It is: designing n bar mounting rail in described bottom support frame along the longitudinal direction, n > 1, thus, at the mounting rail of two different spacing Upper mounting plate base clamping device, it is achieved adapt to the clamping of different length slab;Equally, on the correspondence position of each mounting rail, edge Mounting rail axially offers m installing hole, m > 2, by selecting two installing holes that spacing is different to install slab clamping device, with Adapt to the clamping of different in width slab.
10. the sheet material high energy rate forming frock of band displacement self-locking chuck, its feature under compound movement path as claimed in claim 2 It is: described X is installed on bottom support frame side to long chi along bottom support frame fore-and-aft direction to the X of grating displacement sensor Face;X is installed on mounting base lower surface in mould clamping device to read head, can move with mould clamping device;Y-direction grating position The long chi of Y-direction of displacement sensor is axially mounted to crossbeam side along mould clamping device middle cross beam;Y-direction read head is installed on Y-direction fortune In motivation structure on the nut of ball-screw;Z-direction high-frequency pressure sensor be arranged in mould clamping device taper roll bearing with Between force bearing plate lower surface.
CN201410655469.9A 2014-11-17 2014-11-17 The sheet material high energy rate forming frock of band displacement self-locking chuck under compound movement path Expired - Fee Related CN104475530B (en)

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