CN203459493U - Electromagnetic pulse boosting type progressive drawing forming device - Google Patents
Electromagnetic pulse boosting type progressive drawing forming device Download PDFInfo
- Publication number
- CN203459493U CN203459493U CN201320569798.2U CN201320569798U CN203459493U CN 203459493 U CN203459493 U CN 203459493U CN 201320569798 U CN201320569798 U CN 201320569798U CN 203459493 U CN203459493 U CN 203459493U
- Authority
- CN
- China
- Prior art keywords
- coil
- die
- boosting coil
- boosting
- punch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses an electromagnetic pulse boosting type progressive drawing forming device which comprises a convex die, a concave die, an edge-pressing ring, a drawing ring, a drawing coil, at least one boosting coil assembly and at least one power supply system; the convex die is matched with the concave die; the drawing coil is embedded in the convex die; the edge-pressing ring is movably arranged on the concave die, located on the periphery of the convex die and used for pressing a to-be-formed sheet material on the concave die; the power supply system, the drawing coil and each boosting coil assembly are all connected and used for controlling whether the drawing coil and the boosting coil assembly produces electromagnetic force; the concave die can adopts a rectangular shape or an irregular shape; cross sections of the drawing coil and the boosting coil in the boosting coil assembly are all spiral pipe coils which are made of round or rectangular red copper wires; and each coil is formed by combining one or more sub-coils. According to the electromagnetic pulse boosting type progressive drawing forming device, the drawing forming depth of a cylindrical part is improved.
Description
Technical field
The utility model belongs to materials plastic forming field, is specially the electromagnetic pulse forming of metal blank, particularly the progressive drawing and forming device of electromagnetic pulse assisted.
Background technology
In traditional process of sheet forming technique, for avoiding the wrinkling of material, need to adopt blank holder assist formation.The stress-strain state of plate is formed while being illustrated in figure 1 traditional drawing and forming.Flange is subject to radially tension and tangential (circumferencial direction) compression, and radially and is tangentially producing and extending and compression respectively, and thickness of slab slightly increases, and outside flange, edge thickness increases maximum.At die entrance place, material, produces plastic bending simultaneously thickness of slab is reduced pull and stretch except being subject to radially, and material produces back-flexing (alignment) after leaving die entrance, and material is one of easy fracture region herein.It is also one of easy fracture region that cylinder side wall is subject to axial tension.Bottom of cylinder material is in biaxial tension state; At punch-nose angle place, material production plastic bending and radial drawing, this place's material is also easily broken split plot.
Further analysis for above-mentioned plate force-bearing situation is known, in drawing process, blank flange is under circumferential compressive force effect, may produce plastic instability and wrinkling, even make blank can not pass through punch and matrix gap, thereby radially tension is enlarged markedly, when radially tension is greater than the tensile strength of plate, just can produce drawing crack.Although blank holder can avoid material wrinkling to a certain extent, when pressure-pad-force is excessive in order to strengthen drawing depth, can make equally radially tension increase, also can cause plate drawing crack.Therefore, traditional Sheet Metal Forming Technology is the drawing depth of very difficult raising cylindrical member.
Electromagnetic forming technique has that machining energy is easy to that accurate control, forming speed are fast, Forming Workpiece precision is high, mould is simple and the feature such as equipment interoperability is strong.And whole forming process is green, environmental protection.Now be widely used in the numerous areas such as machinery, electronics, auto industry, light industry and instrument and meter, Aero-Space, weapon industry, application prospect is very wide.Yet, the sheet material electromagnetic pulse forming process of Chinese scholars research at present, main technique is all to stubbornly refuse to allow it produce on the flange section folder of cylindrical member to flow, and the mode of texturing of die part is mainly Bulging Process.It has caused the Thickness Distribution of drip molding inhomogeneous, and Forming depth is more shallow.Therefore, have scholar to propose the auxiliary stamp forming technology of a kind of electromagnetic pulse, its typical forming process is to adopt the common stamping large contouring that completes part to be shaped, the difficulties such as wedge angle, crest line of the avoiding part position of embarking on journey; And then by electromagnetic pulse forming, carry out the partial plastic forming of the difficult deformation place of workpiece.This forming technique is compared with traditional method for drawing, although the cylindrical member that the radius of corner that can be shaped is less, improved the stress distribution at punch-nose angle place, but do not improved the flange of cylindrical member and the stress in die entrance region, therefore the drawing depth of cylindrical member has not been improved.
Utility model content
For solve in prior art drawing and forming stress unreasonable, there is Pull crack defect and the problem such as single electromagnetism drawing and forming height is shallow, the utility model proposes a kind of progressive drawing and forming device of electromagnetic pulse assisted that can increase substantially Deep Drawing Limit.
The progressive drawing and forming device of a kind of electromagnetic pulse assisted that the utility model provides, comprises punch, die, blank holder, pull and stretch coil, at least one boosting coil groups and at least one power-supply system; Punch and die match, and pull and stretch coil is embedded in punch; Blank holder is movably arranged on die and is positioned at the periphery of punch, for plate to be formed is pressed on to die; Described power-supply system is all connected with each boosting coil groups with pull and stretch coil, for controlling pull and stretch coil and whether boosting coil groups produces electromagnetic force.Wherein, die also can be rectangle or irregularly shaped, and the cross section of the boosting coil in pull and stretch coil and boosting coil groups is the toroidal winding that the red copper wire of circle or rectangle turns to, and each coil can be combined by more than one subcoil.
Preferably, described boosting coil groups is a plurality of, and each boosting coil groups includes upper boosting coil and the lower boosting coil that upper-lower position is corresponding, and described upper boosting coil is embedded in blank holder, and described lower boosting coil is embedded in die.
Preferably, described boosting coil groups is one, and described boosting coil groups is comprised of side boosting coil, and described side boost line snare is contained in the periphery of blank holder and die intersection.
Preferably, the progressive drawing and forming device of described electromagnetic pulse assisted also comprises a base, and die is fixedly mounted on base.
Preferably, described power-supply system comprises a plurality of power subsystems, and described each power subsystem includes power supply, storage capacitor, divider resistance and the gauge tap of series connection successively.
Preferably, described pull and stretch coil, upper boosting coil and lower boosting coil are all connected with a power subsystem.
Preferably, described pull and stretch coil is connected with a power subsystem, and the upper boosting coil in described boosting coil groups is connected with another power subsystem with after lower boosting coil series connection.
Preferably, described power-supply system is one, comprise power supply, storage capacitor, divider resistance and a plurality of gauge tap, described pull and stretch coil is connected with a gauge tap, and the upper boosting coil in described boosting coil groups is connected with another gauge tap with after lower boosting coil series connection.
The utlity model has following beneficial effect:
1, the utility model is by traditional punch pull and stretch, electromagnetic pulse pull and stretch and the electromagnetic pulse boosting technology enforcement progressive molding that combines, can be when each walks pull and stretch, push the plate of both sides to die center, with this, change the stress-strain state of plate, improve stress distribution, to reduce the tension of cylindrical member fillet, straight wall and bottom, or part forms compression.
2, device provided by the utility model can accurately be controlled shaping energy and sheet deformation degree, makes sheet material homomergic flow after each forming step move precalculated position.
3, device provided by the utility model, the many groups that adopt side boosting coil, can form multistage progressive drawing and forming, makes cylindrical member draw deeplyer than traditional handicraft.
4, utilize the utility model device can improve the mobility of workpiece flange position plate, both overcome the Pull crack defect in traditional drawing and forming, improved the forming property of plate, having overcome again single electromagnetic pulse drawing and forming only can be for the deficiency of partial plastic forming or shallow recessing, shallow drawing shaping, can significantly improve forming limit, improve cylindrical member Forming depth, be effective to the production of dark tube drawing.
5, utilize the utility model device to carry out progressive molding, reduce the strain rate of each step forming process material, both can improve the forming height of cylindrical member, can reduce again the energy that each step forming process needs, with reduce power-supply system gross energy, reduce equipment scale and reduce cost of investment.
6, utilize the utility model device can make the straight wall of cylindrical member and the material of bottom that are shaped not occur thinning phenomenon, and even thickness, also can make plasticity metal blank poor, difficult distortion be easy to be shaped.
7, the utility model device, by adopting the method for electromagnetic pulse pull and stretch and boosting, improves the rate of deformation of material, reaches the forming limit that improves metal material.
Accompanying drawing explanation
The stress-strain state in each region when Fig. 1 is traditional Sheet Metal Forming Technology pull and stretch cylindrical member;
Fig. 2 is the progressive drawing and forming device of electromagnetic pulse assisted schematic diagram;
Fig. 3 is the electromagnetic pulse boosting schematic diagram of plate;
Fig. 4 is the three-dimensional cutaway view of the progressive drawing and forming device of electromagnetic pulse assisted;
Fig. 5 is the progressive drawing and forming device of the electromagnetic pulse assisted schematic diagram that four groups of power-supply systems are connected respectively;
Fig. 6 is the progressive drawing and forming device of the electromagnetic pulse assisted schematic diagram of the whole series connection of power-supply system;
Fig. 7 is the progressive drawing and forming device of electromagnetic pulse single assisted schematic diagram;
Fig. 8 a is the original state schematic diagram of working in embodiment 1,3 and 4;
Fig. 8 b is plate schematic diagram after punch drawing and forming for the first time in embodiment 1,3 and 4;
Fig. 8 c is plate schematic diagram after electromagnetic pulse forming for the first time in embodiment 1,3 and 4;
Fig. 8 d is plate schematic diagram after punch drawing and forming for the second time in embodiment 1,3 and 4;
Fig. 8 e is plate schematic diagram after electromagnetic pulse forming for the second time in embodiment 1,3 and 4;
Fig. 8 f is plate schematic diagram after punch drawing and forming for the third time in embodiment 1,3 and 4;
Fig. 8 g is plate final schematic diagram after electromagnetic pulse forming for the third time in embodiment 1,3 and 4;
Fig. 9 a is the original state schematic diagram of working in embodiment 2 and 5;
Fig. 9 b is plate schematic diagram after electromagnetic pulse forming for the first time in embodiment 2 and 5;
Fig. 9 c is plate schematic diagram after punch drawing and forming for the first time in embodiment 2 and 5;
Fig. 9 d is plate schematic diagram after electromagnetic pulse forming for the second time in embodiment 2 and 5;
Fig. 9 e is plate schematic diagram after punch drawing and forming for the second time in embodiment 2 and 5;
Fig. 9 f is plate final schematic diagram after electromagnetic pulse forming for the third time in embodiment 2 and 5;
The label declaration of each parts in figure:
1: punch, 2: pull and stretch coil, 3: blank holder, boosting coil on 4: the three, boosting coil on 5: the second, boosting coil, 7 on 6: the first: the plate that is formed, 8: base, 9: die, 10: the three times boosting coils, 11: the second times boosting coils, 12: the first times boosting coils, 16: side boosting coil.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.At this, it should be noted that, for the explanation of these embodiments, be used for helping to understand the utility model, but do not form restriction of the present utility model.In addition,, in each embodiment of described the utility model, involved technical characterictic just can not combine mutually as long as do not form each other conflict.
Embodiment mono-:
Be the progressive drawing and forming device of electromagnetic pulse assisted described in the utility model as in Figure 2-4, comprise punch 1, die 9, blank holder 3, pull and stretch coil 2, three boosting coil groups and power-supply systems; Punch 1 matches with die 9, and pull and stretch coil 2 is embedded in punch 1; Blank holder 3 is movably arranged on die 9 and is positioned at the periphery of punch 1, for plate 7 to be formed is pressed on to die 9; Die 9 is fixedly mounted on base 8.Certainly in the utility model, also base 8 can be set.
Each boosting coil groups includes upper boosting coil and the lower boosting coil that upper-lower position is corresponding, in the present embodiment, boosting coil 6 and first time boosting coil 12 form first boosting coil groups on first, on second, boosting coil 5 and second time boosting coil 11 form second boosting coil groups, on the 3rd, boosting coil 4 and the 3rd time boosting coil 10 form the 3rd boosting coil groups, boosting coil 6 on first, on second, on boosting coil 5 and the 3rd, boosting coil 4 is embedded in blank holder 3, first time boosting coil 12, second time boosting coil 11 and the 3rd time boosting coil 10 are embedded in die 9.
Described power-supply system comprises a plurality of power subsystems, i.e. the first power subsystem 13-1, second source subsystem 13-2, the 3rd power subsystem 13-3, the 4th power subsystem 13_4, the 5th power subsystem 13-5, the 6th power subsystem 13-6, the 7th power subsystem 13-7, described each power subsystem includes power supply, storage capacitor, divider resistance and the switch of series connection successively.Boosting coil 4 on boosting coil 5, the 3rd on boosting coil 6, second on described pull and stretch coil 2, first, first time boosting coil 12, second time boosting coil 11 are all connected with a power subsystem with the 3rd time boosting coil 10.
The method that adopts the progressive drawing and forming device of above-mentioned electromagnetic pulse assisted to carry out drawing and forming specifically comprises:
As shown in Figure 8 a, first plate 7 to be formed is placed between blank holder 3 and die 9, now plate 7 to be formed is positioned at initial plate material level and puts 7-1, and punch 1 lower end is positioned at the first punch position 1-1, keeps the edge of plate 7 to be formed and the justified margin of die 9, by downforce, make punch 1 come downwards to the second punch position 1-2, the plate to be formed 7 of punch 1 bottom is pressed in die 9, pull and stretch to the second plate position 7-2, implements preform, as shown in Figure 8 b, storage capacitor charging to the first power subsystem 13-1, the 4th power subsystem 13_4 and the 5th power subsystem 13-5, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively, the switch in closed the first power subsystem 13-1, the 4th power subsystem 13-4 and the 5th power subsystem 13-5 simultaneously, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and first, boosting coil 6 and first time boosting coil 12 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 3rd plate position 7-3 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Figure 8 c, by downforce, make punch 1 come downwards to the 3rd punch position 1-3, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the four plate position 7_4, as shown in Fig. 8 d, storage capacitor charging to the first power subsystem 13-1, the 3rd power subsystem 13-3 and the 6th power subsystem 13-6, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively, the switch in closed the first power subsystem 13-1, the 3rd power subsystem 13-3 and the 6th power subsystem 13-6 simultaneously, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and second, boosting coil 5, second time boosting coil 11 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 5th plate position 7-5 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 8 e, by downforce, make punch 1 come downwards to the 4th punch position 1_4, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the six plate position 7-6, as shown in Fig. 8 f, storage capacitor charging to the first power subsystem 13-1, second source subsystem 13-2, the 7th power subsystem 13-7, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively, closed the first power subsystem 13-1 of while, second source subsystem 13-2, switch in the 7th power subsystem 13-7, storage capacitor discharges to form-wound coil by cable, boosting coil 4 on pull and stretch coil 2 and the 3rd, the 3rd time boosting coil 10 produces electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 7th plate position 7-7 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 8 g, the deep drawing that finally completes plate is shaped.
Embodiment bis-:
Adopt the progressive drawing and forming device of electromagnetic pulse assisted described in embodiment mono-, the method for carrying out drawing and forming specifically comprises:
Embodiment tri-:
Be illustrated in figure 5 the progressive drawing and forming device of electromagnetic pulse assisted described in the utility model, comprise punch 1, die 9, blank holder 3, pull and stretch coil 2, three boosting coil groups and power-supply systems.Except power-supply system, its structure is identical with the structure of embodiment mono-, is not repeated.
Described power-supply system comprises a plurality of power subsystems, i.e. the first power subsystem 13-1, second source subsystem 13-2, the 3rd power subsystem 13-3, the 4th power subsystem 13_4, described each power subsystem includes power supply, storage capacitor, divider resistance and the switch of series connection successively.
Described pull and stretch coil 2 is connected with the first power subsystem 13-1, after on first, boosting coil 6 is connected with first time boosting coil 12,13-2 is connected with second source subsystem, after on second, boosting coil 5 is connected with second time boosting coil 11, be connected with the 3rd power subsystem 13-3, after on the 3rd, boosting coil 4 is connected with the 3rd time boosting coil 10, be connected with the 4th power subsystem 13_4.
The method that adopts the progressive drawing and forming device of above-mentioned electromagnetic pulse assisted to carry out drawing and forming specifically comprises:
As shown in Figure 8 a, first plate 7 to be formed is placed between blank holder 3 and die 9, now plate 7 to be formed is positioned at initial plate material level and puts 7-1, and punch 1 lower end is positioned at the first punch position 1-1, keeps the edge of plate 7 to be formed and the justified margin of die 9; By downforce, make punch 1 come downwards to the second punch position 1-2, the plate to be formed 7 of punch 1 bottom is pressed in die 9, pull and stretch to the second plate position 7-2, implements preform, as shown in Figure 8 b; Storage capacitor charging to the first power subsystem 13-1, second source subsystem 13-2, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively; The switch in closed the first power subsystem 13-1, second source subsystem 13-2 simultaneously, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and first, boosting coil 6, first time boosting coil 12 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 3rd plate position 7-3 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Figure 8 c; By downforce, make punch 1 come downwards to the 3rd punch position 1-3, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the four plate position 7-4, as shown in Fig. 8 d; Storage capacitor charging to the first power subsystem 13-1, the 3rd power subsystem 13-3, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively; The switch in closed the first power subsystem 13-1, the 3rd power subsystem 13-3 simultaneously, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and second, boosting coil 5, second time boosting coil 11 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 5th plate position 7-5 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 8 e; By downforce, make punch 1 come downwards to the 4th punch position 1-4, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the six plate position 7-6, as shown in Fig. 8 f; Storage capacitor charging to the first power subsystem 13-1, the 4th power subsystem 13_4, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively; The switch in closed the first power subsystem 13-1, the 4th power subsystem 13-4 simultaneously, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and the 3rd, boosting coil 4, the 3rd time boosting coil 10 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 7th plate position 7-7 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 8 g, the deep drawing that finally completes plate is shaped.
Embodiment tetra-:
Be illustrated in figure 6 the progressive drawing and forming device of electromagnetic pulse assisted described in the utility model, comprise punch 1, die 9, blank holder 3, pull and stretch coil 2, three boosting coil groups and power-supply systems.Except power-supply system, its structure is identical with the structure of embodiment mono-, is not repeated.
Described power-supply system comprises power supply, storage capacitor, divider resistance and the switch (comprising the first switch 15-1, second switch 15-2, the 3rd switch 15-3, the 4th switch 15_4) of series connection.Described pull and stretch coil 2 is connected with the first switch 15-1, after on first, boosting coil 6 is connected with first time boosting coil 12,15-2 is connected with second switch, after on second, boosting coil 5 is connected with second time boosting coil 11, be connected with the 3rd switch 15-3, after on the 3rd, boosting coil 4 is connected with the 3rd time boosting coil 10, be connected with the 4th switch 15-4.
The method that adopts the progressive drawing and forming device of above-mentioned electromagnetic pulse assisted to carry out drawing and forming specifically comprises:
As shown in Figure 8 a, first plate 7 to be formed is placed between blank holder 3 and die 9, now plate 7 to be formed is positioned at initial plate material level and puts 7-1, and punch 1 lower end is positioned at the first punch position 1-1, keeps the edge of plate 7 to be formed and the justified margin of die 9; By downforce, make punch 1 come downwards to the second punch position 1-2, the plate to be formed 7 of punch 1 bottom is pressed in die 9, pull and stretch to the second plate position 7-2, implements preform, as shown in Figure 8 b; Storage capacitor charging to power-supply system, when charging voltage reaches after shaping voltage, disconnects charge circuit; Closed the first switch 15-1 of while and second switch 15-2, disconnect the 3rd switch 15-3 and the 4th switch 15_4, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and first, boosting coil 6, first time boosting coil 12 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 3rd plate position 7-3 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Figure 8 c; By downforce, make punch 1 come downwards to the 3rd punch position 1-3, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the four plate position 7-4, as shown in Fig. 8 d; Storage capacitor charging to power-supply system, when charging voltage reaches after shaping voltage, disconnects charge circuit; Closed the first switch 15-1 of while and the 3rd switch 15-3, disconnect second switch 15-2 and the 4th switch 15_4, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and second, boosting coil 5, second time boosting coil 11 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 5th plate position 7-5 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 8 e; By downforce, make punch 1 come downwards to the 4th punch position 1-4, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the six plate position 7-6, as shown in Fig. 8 f; Storage capacitor charging to power-supply system, when charging voltage reaches after shaping voltage, disconnects charge circuit; Closed the first switch 15-1 of while and the 4th switch 15-4, disconnect second switch 15-2 and the 3rd switch 15-3, storage capacitor discharges to form-wound coil by cable, on pull and stretch coil 2 and the 3rd, boosting coil 4, the 3rd time boosting coil 10 produce electromagnetic force simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 7th plate position 7-7 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 8 g, the deep drawing that finally completes plate is shaped.
Embodiment five:
Be illustrated in figure 7 the progressive drawing and forming device of electromagnetic pulse assisted described in the utility model, comprise punch 1, die 9, blank holder 3, pull and stretch coil 2, boosting coil groups and a power-supply system.
Described boosting coil groups is comprised of side boosting coil 16, and described side boosting coil 16 is sleeved on the periphery of blank holder 3 and die 9 intersections.Described power-supply system comprises the first power subsystem 13-1 and second source subsystem 13-2; Pull and stretch coil 2 is connected with the first power subsystem 13-1, and side boosting coil 16 is connected with second source subsystem 13-2; Remainder structure is identical with the structure of embodiment mono-, is not repeated.
The method that adopts the progressive drawing and forming device of above-mentioned electromagnetic pulse assisted to carry out drawing and forming specifically comprises:
First plate 7 to be formed is placed between blank holder 3 and die 9, now plate 7 to be formed is positioned at initial plate material level and puts 7-1, and punch 1 lower end is positioned at the first punch position 1-1, keeps the edge of plate 7 to be formed and the justified margin of die 9; Storage capacitor charging to the first power subsystem 13-1, second source subsystem 13-2, when charging voltage reaches after shaping voltage, disconnects charge circuit respectively; The switch in closed the first power subsystem 13-1, second source subsystem 13-2 simultaneously, storage capacitor discharges to form-wound coil by cable, pull and stretch coil 2 produces electromagnetic force with side boosting coil 16 simultaneously, the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the second plate position 7-2 by electromagnetic force, meanwhile the part of plate 7 to be formed between blank holder 3 and die 9 pushed to the center of die 9 by electromagnetic force, and flow in die 9, as shown in Fig. 9 b; By downforce, make punch 1 come downwards to the second punch position 1-2, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the three plate position 7-3, as shown in Fig. 9 c; Storage capacitor charging to the first power subsystem 13-1, when charging voltage reaches after shaping voltage, disconnects charge circuit; Switch in closed the first power subsystem 13-1, storage capacitor discharges to form-wound coil by cable, and pull and stretch coil 2 produces electromagnetic force, and the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the 4th plate position 7_4 by electromagnetic force, as shown in Fig. 9 d; By downforce, make punch 1 come downwards to the 3rd punch position 1-3, make part that plate 7 to be formed is positioned at punch 1 bottom by pull and stretch to the five plate position 7-5, as shown in Fig. 9 e; Storage capacitor charging to the first power subsystem 13-1, when charging voltage reaches after shaping voltage, disconnects charge circuit; Switch in closed the first power subsystem 13-1, storage capacitor discharges to form-wound coil by cable, and pull and stretch coil 2 produces electromagnetic force, and the part that makes plate 7 to be formed be positioned at punch 1 bottom is pushed to the position shown in 7-6 by electromagnetic force, as shown in Fig. 9 f, the deep drawing that finally completes plate is shaped.
The above is preferred embodiment of the present utility model, but the utility model should not be confined to the disclosed content of this embodiment and accompanying drawing.So every, do not depart from the equivalence completing under spirit disclosed in the utility model or revise, all falling into the scope of the utility model protection.
Claims (8)
1. the progressive drawing and forming device of electromagnetic pulse assisted, is characterized in that, comprises punch (1), die (9), blank holder (3), pull and stretch coil (2), at least one boosting coil groups and at least one power-supply system; Punch (1) matches with die (9), and pull and stretch coil (2) is embedded in punch (1); Blank holder (3) is movably arranged on the periphery that punch (1) was gone up and be positioned to die (9), for plate to be formed (7) is pressed on to die (9); Described power-supply system is all connected with each boosting coil groups with pull and stretch coil (2), for controlling pull and stretch coil (2) and boosting coil groups, whether produces electromagnetic force.
2. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 1, it is characterized in that, described boosting coil groups is a plurality of, each boosting coil groups includes upper boosting coil and the lower boosting coil that upper-lower position is corresponding, described upper boosting coil is embedded in blank holder (3), and described lower boosting coil is embedded in die (9).
3. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 1, it is characterized in that, described boosting coil groups is one, described boosting coil groups is comprised of side boosting coil (16), and described side boosting coil (16) is sleeved on the periphery of blank holder (3) and die (9) intersection.
4. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 1, is characterized in that, the progressive drawing and forming device of described electromagnetic pulse assisted also comprises a base (8), and die (9) is fixedly mounted on base (8).
5. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 2, it is characterized in that, described power-supply system comprises a plurality of power subsystems, and described each power subsystem includes power supply, storage capacitor, divider resistance and the gauge tap of series connection successively.
6. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 5, is characterized in that, described pull and stretch coil (2), upper boosting coil and lower boosting coil are all connected with a power subsystem.
7. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 5, it is characterized in that, described pull and stretch coil (2) is connected with a power subsystem, and the upper boosting coil in described boosting coil groups is connected with another power subsystem with after lower boosting coil series connection.
8. the progressive drawing and forming device of electromagnetic pulse assisted according to claim 2, it is characterized in that, described power-supply system is one, comprise power supply, storage capacitor, divider resistance and a plurality of gauge tap, described pull and stretch coil (2) is connected with a gauge tap, and the upper boosting coil in described boosting coil groups is connected with another gauge tap with after lower boosting coil series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569798.2U CN203459493U (en) | 2013-09-13 | 2013-09-13 | Electromagnetic pulse boosting type progressive drawing forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569798.2U CN203459493U (en) | 2013-09-13 | 2013-09-13 | Electromagnetic pulse boosting type progressive drawing forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203459493U true CN203459493U (en) | 2014-03-05 |
Family
ID=50171875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569798.2U Withdrawn - After Issue CN203459493U (en) | 2013-09-13 | 2013-09-13 | Electromagnetic pulse boosting type progressive drawing forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203459493U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658297A (en) * | 2013-09-13 | 2014-03-26 | 华中科技大学 | Electromagnetic pulse boosting type gradual deep drawing forming method and device |
| CN103894468A (en) * | 2014-04-02 | 2014-07-02 | 华中科技大学 | Material fluidity control method for metal plate forming |
| CN104475531A (en) * | 2014-11-18 | 2015-04-01 | 华中科技大学 | Metal plate electromagnetic pulse local flow incremental forming device and method |
| CN105081107A (en) * | 2015-09-23 | 2015-11-25 | 燕山大学 | Drawing forming die with blank pressing conducted by adopting electronic control permanent magnet technique and blank pressing method of drawing forming die |
| CN107413917A (en) * | 2017-07-05 | 2017-12-01 | 华中科技大学 | A kind of large-scale metal sheet electromagnetism progressive molding method based on plate face control shape |
| CN108465725A (en) * | 2018-04-09 | 2018-08-31 | 济南大学 | A kind of electromagnetism flanging drawing experiments device and test method |
-
2013
- 2013-09-13 CN CN201320569798.2U patent/CN203459493U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658297A (en) * | 2013-09-13 | 2014-03-26 | 华中科技大学 | Electromagnetic pulse boosting type gradual deep drawing forming method and device |
| CN103658297B (en) * | 2013-09-13 | 2016-01-20 | 华中科技大学 | The progressive drawing forming method of electromagnetic pulse assisted and device |
| CN103894468A (en) * | 2014-04-02 | 2014-07-02 | 华中科技大学 | Material fluidity control method for metal plate forming |
| CN104475531A (en) * | 2014-11-18 | 2015-04-01 | 华中科技大学 | Metal plate electromagnetic pulse local flow incremental forming device and method |
| CN104475531B (en) * | 2014-11-18 | 2016-04-13 | 华中科技大学 | A kind of sheet metal electromagnetic pulse local flow progressive molding device and method |
| CN105081107A (en) * | 2015-09-23 | 2015-11-25 | 燕山大学 | Drawing forming die with blank pressing conducted by adopting electronic control permanent magnet technique and blank pressing method of drawing forming die |
| CN105081107B (en) * | 2015-09-23 | 2017-04-26 | 燕山大学 | Drawing forming method with blank pressing conducted by adopting electronic control permanent magnet technique |
| CN107413917A (en) * | 2017-07-05 | 2017-12-01 | 华中科技大学 | A kind of large-scale metal sheet electromagnetism progressive molding method based on plate face control shape |
| CN107413917B (en) * | 2017-07-05 | 2018-04-24 | 华中科技大学 | A kind of large-scale metal sheet electromagnetism progressive molding method based on plate face control shape |
| CN108465725A (en) * | 2018-04-09 | 2018-08-31 | 济南大学 | A kind of electromagnetism flanging drawing experiments device and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103658297B (en) | The progressive drawing forming method of electromagnetic pulse assisted and device | |
| CN203459493U (en) | Electromagnetic pulse boosting type progressive drawing forming device | |
| CN103722067B (en) | The progressive reverse drawing forming method of annular electromagnetic pulse of sheet metal and device | |
| CN104353718B (en) | A kind of sheet material bag draws the method for building mortion and shaping | |
| CN104070129B (en) | Hot extrusion forging die for pipe with flange and deep blind taper hole shaft and forging technology thereof | |
| CN204262135U (en) | A kind of sheet metal electromagnetic pulse local flow progressive molding device | |
| CN104475531B (en) | A kind of sheet metal electromagnetic pulse local flow progressive molding device and method | |
| CN107138591A (en) | A kind of electromagnetic forming device and manufacturing process of cylindrical member fillet | |
| CN202343833U (en) | Cold heading and molding mould of main-secondary screw | |
| CN203494978U (en) | Annular electromagnetic pulse progressive reverse-deep-drawing forming device for sheet metal | |
| CN103962404A (en) | Device for realizing reciprocating extrusion process on one-way hydraulic press | |
| CN103272926A (en) | Primary stamping forming die | |
| CN103111519B (en) | Forming die of snap spring | |
| CN204308124U (en) | For the assembling die of motor-car high gear ring blank forging | |
| CN103151882B (en) | Motor stator splicing tooling | |
| CN204122550U (en) | A kind of sheet material bag draws building mortion | |
| CN202015783U (en) | Mould for stagewise side blanking type fine drawing motor case | |
| CN102990288B (en) | Core secondary stainless steel body Forging Technology | |
| CN206373294U (en) | A kind of combined type shape expanding machine frock | |
| CN202861089U (en) | Punch forming device of dense blind hole plate | |
| CN204247897U (en) | Two-sided butt-joint point adapter sleeve cold upsetting die of car | |
| CN202683708U (en) | Molding device of metal spiral corrugated pipes | |
| CN108080482A (en) | A kind of stepped cylindrical member producing device and method based on the driving of multidirectional magnetic field force | |
| CN203245362U (en) | Powder metallurgy forming die of shock absorber guide apparatus | |
| CN204108619U (en) | A kind of aluminium mould automatic loading and unloading mould machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160120 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160120 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |