CN108723106A - A kind of multidirectional load rotary extradition forming die and die sinking method of parallel point of mould - Google Patents
A kind of multidirectional load rotary extradition forming die and die sinking method of parallel point of mould Download PDFInfo
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- CN108723106A CN108723106A CN201810414621.2A CN201810414621A CN108723106A CN 108723106 A CN108723106 A CN 108723106A CN 201810414621 A CN201810414621 A CN 201810414621A CN 108723106 A CN108723106 A CN 108723106A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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Abstract
The invention discloses a kind of multidirectional load rotary extradition forming dies of parallel point of mould and die sinking method to be realized with the purpose of circular section component of the short route shaped side walls with axial step inner ring muscle using solid bar as blank.In forming process, cavity plate drives blank rotation, punch-pin along the central axial feeding of cavity plate, while punch-pin it is different degrees of divide mould and molding, the circular section component of axial step inner ring muscle is carried for realizing shaped side walls.It is mainly characterized by punch-pin, punch-pin working position symmetrical two parts by being made of, its plane of symmetry is die joint, when two halves punch-pin is slided along parallel die joint, both it can ensure that the difference because of two punch positions made the inside diameter of cylindrical component formed thereby change, also ensure that gap is not present along vertical die joint direction in two punch-pin simultaneously, two punch-pin is avoided to squeeze out blank from centre.The invention has the advantages that：Technological process is short, stock utilization is high, easy to operate, economizes on resources.
Description
Technical field
The present invention relates to technical field of mold, especially one kind by rotary squeezing technique, using solid bar as blank, use
The shaping dies along the cylindrical part that central axis direction is stairstepping inner ring muscle and cylinder bottom lock is carried in pressure processing barrel.
Background technology
With the development of society, economize on resources becomes each manufacturing enterprise direction that even country chases with lightweight.Especially
It is in industries such as aerospace, defence and military, communications and transportation, economizing on resources, it is lower that these industries are meaned with lightweight
Production and application cost, less energy consumption, and what is brought for transporting equipment is more superior mobility, it is more powerful
Transport capacity, which determine the competitiveness of relevant enterprise itself, a kind of embodiment of the even more one whole comprehensive strength of country.
For economizing on resources and light-weighted pursuit, it should more be conceived to actual production process for enterprise itself.Cause
This, realizes that lightweight and its production process realize that efficient economizing has very far-reaching meaning for typical shape component in industry
Justice.Wherein, cylindrical component is as in these industries, the small shell for arriving wheel hub, rocket and guided missile greatly to cartridge case, a kind of application
Very extensive component.It is that many enterprises are constantly pursued to its lightweight.Overall weight i.e. is required for the lightweight of component
It does not lose original mechanical property while lighter again, realizes that lightweight generally puts down face by following:When more conversion materials,
Original material is replaced using not less than original material mechanical performance and the lower material of density；Second is that promoting current material
Mechanical property is mainly realized by changing the technological process of material, is changed by original mechanical processing for cylindrical component
At Plastic Forming, the mechanical property of material is improved by big plastic deformation, the wall thickness of original part is reduced, reduces the whole of part
Body volume realizes lightweight；Third, changing design of part, the design optimization of part shape is carried out, the whole of part is reduced to realize
Body weight, such as cylindrical part of the barrel with stairstepping inner ring muscle in an axial direction can meet the required different mechanics of different location
The requirement of performance, while can substantially increase because Local Mechanical Property is more demanding to meet to avoid using the whole wall thickness of increase again
The method for adding pts wt, finally realizes lightweight.Light-weighted province is exactly that a kind of saving for resource utilizes, except this it
Outside, the stock utilization of raising, shortened process can also be realized and be economized on resources.
But at present barrel carry along central axis direction be stairstepping inner ring muscle cylindrical component mainly by machinery plus
Work can be completed, but its cutting output is larger, and stock utilization is low, and the process-cycle is longer, at the same it is machined after material in
Portion's streamline and imperfect its mechanical property of influence and service life, do not meet the requirement of current development.And general pressure processing
It is not easy to realize again for bottom lock cylindrical member and barrel is with along the cylindrical component that central axis direction is stairstepping inner ring muscle
Processing.So a kind of assistant officer's short route to appear and high stock utilization for realizing with stairstepping inner ring muscle in an axial direction
The plastic molding method of cylindrical member.
Invention content
Present invention aims at providing, a kind of technological process is short, energy consumption is few, production efficiency is high, stock utilization is high
Along the multidirectional load rotary extradition forming die and die sinking method of parallel point of mould of die joint.
To achieve the above object, following technical scheme is used：The invention mainly comprises cavity plate, fission_typed punch, divide mould
The rotatable hydraulic press of device, lower table, the mold are mounted on such hydraulic press, and above-mentioned split cast mounting includes oblique
Wedge, guide rail, slider I, sliding block II, nitrogen gas spring I, nitrogen gas spring II, nitrogen gas spring fixed plate I, nitrogen gas spring fixed plate II；It leads
Rail is bolted on the moved cross beam of hydraulic press, opened up on guide rail one can allow inclined wedge by it is rectangular logical
Hole, in square through hole installation can be fixedly connected with the liftout tank on hydraulic press moved cross beam with movable tapered wedge, inclined wedge upper end and
It can move up and down with liftout tank；It is provided with T-slot, identical slider I, sliding block II on one side in guide rail faced downwards workbench
The both sides of inclined wedge are mounted on guide rail and are respectively in by symmetrical structure by T-slot, and slider I and sliding block II are right-angled trapezium knot
Structure, inclined-plane side are corresponding with two inclined-planes of inclined wedge 1 respectively；At the medial plane end of slider I and I end thereof contacts of nitrogen gas spring
Connection, I other end of nitrogen gas spring are fixedly connected with nitrogen gas spring fixed plate I, and nitrogen gas spring fixed plate I is bolted on work
On dynamic crossbeam；It is connect with II end thereof contacts of nitrogen gas spring at the medial plane end of sliding block II, II other end of nitrogen gas spring and nitrogen
Spring retaining plate II is fixedly connected, and nitrogen gas spring fixed plate II is bolted on moved cross beam；
The fission_typed punch is made of two full symmetric fission_typed punchs I, fission_typed punchs II, fission_typed punch
I, fission_typed punch II by screw be separately fixed at slider I, sliding block II lower end；Before fission_typed punch I, fission_typed punch II
End is the front end semicylinder for forming, and rear end is the fixed plate for being fixed on sliding block, and centre is connection rear and front end
Middle-end semicylinder；Fission_typed punch I, II front end semicylinder of fission_typed punch plane be die joint；It is seperated when installation
Formula punch-pin I, II its front end of fission_typed punch the plane of semicylinder should ensure that coincidence, while also should ensure that die joint and cunning
Block is parallel along the direction of motion of guide rail T-slot.It can make two sliding blocks that the only edge of punch-pin I, II be driven to be parallel to die joint respectively in this way
Direction moves, two side planes of the semicylinder of its front end when the movement perpendicular to die joint direction is not present, while installing
It overlaps, so gap is not present between two working portion side planes of fission_typed punch I, II on vertical die joint direction,
To ensure that fission_typed punch I, II will not act on anti-squeeze that blank generates because of axial feed, and in fission_typed punch I, fission
Blank is not present between formula punch-pin II.
Further, the radius of the fission_typed punch I, II front end semicylinder of fission_typed punch is less than or equal to cylindrical shape
The least radius of inside parts；The radius of its middle-end semicylinder is less than the radius of front end semicylinder.
The internal cavity surface body of the cavity plate is cylindrical surface, and semi-circular recesses in an axial direction are evenly equipped on side wall,
Concave die cavity cross section forms spline-like；Blank selects solid bar, first according to the size of the part finally shaped, using machine
Solid bar is cut or is squeezed into the prefabricated blank consistent with concave die cavity cross section by the mode that tool is processed or squeezed.By prefabricated blank
It is placed in cavity plate, cavity plate is fixed by screws on the rotary table below forcing press, can be around the central shaft of concave die cavity
Rotation, cavity plate drive prefabricated blank around the center axis rotation of concave die cavity by the spline-like groove on cavity.
A kind of die sinking method of the multidirectional load rotary extradition forming die of parallel point of mould, steps are as follows：
Step 1, when original state, inclined wedge is in the origin moved downward, the terminal moved upwards, and nitrogen gas spring is in pressure
Contracting state applies thrust to two sliding blocks respectively makes the inclined-plane of itself and inclined wedge be in close contact, the fission_typed punch being fixed below sliding block
I, II it is in molding state；
Step 2, due to two sliding blocks, inclined wedge both sides bevel angle is identical simultaneously with inclined wedge close contact when inclined wedge moves downward,
Sliding block can be then pushed to do the disengaging movement of synchronous same distance, two sliding blocks are divided into the nitrogen gas spring for not compressing joint therewith, together
When drive fission_typed punch I, II to carry out a point mould along the direction of parallel die joint and move, fission_typed punch I, II reaches specified point
After mould distance, inclined wedge stopping is fed down, and completion divides mold process；
Step 3, when fission_typed punch I, II, which is in, divides mould state, inclined wedge moves upwards, compressed nitrogen gas spring point
Two sliding blocks and inclined wedge moment is not pushed to be in close contact, two sliding blocks move upwards that synchronize be all drawback movement with inclined wedge, drive
Fission_typed punch I, II carries out molding campaign, until fission_typed punch I, II molds completely, molding movement is completed in inclined wedge stop motion；
Step 4, cavity plate is fixedly linked with rotary table on forcing press, it can be achieved that the rotation around concave die cavity central shaft is transported
It is dynamic, the determination of direction of rotation：For in the punch-pin I, II for dividing mould state, facing punch-pin I first, it is opposite then to observe punch-pin I
In die-closed position in its left, then cavity plate around cavity plate internal cavity central axial anticlockwise, it is on the contrary then to right rotation, for closing
Mould state, which turns left or turns right, all may be used.
Compared with prior art, the invention has the advantages that：
1, blank uses solid circular bar, carries out simple preprocessing and can be used to shape, and prefabricated blank process is convenient
Simply.
2, the component shaped can be completed through time processing, and technological process is short, easy to operate, and inside the cylindrical member shaped
With various sizes of ladder.
3, since the diameter of effective squish area of fission_typed punch I, II can be with dividing mould then to be used apart from consecutive variations
Same mold can shape the cylindrical member with inner ring muscle of different inner diameters or the cylindrical member of different inner diameters in a certain range, can
Realize Flexible Manufacture.
4, by the big plastic deformation that produces of rotary squeezing, yield strength improves blank, and then can improve forming
The intensity of part can be realized lightweight, reduce material under the premise of meeting the mechanical property used by part wall thickness reduction
Material uses.
5, die sinking process material utilization rate is high, and machine-finish allowance is few, saves working hour, lowers cost of material, economizes on resources.
Description of the drawings
Fig. 1 is the mold isometric drawing in the present invention.
Fig. 2 is that fission_typed punch of the present invention is in the isometric drawing for dividing mould state.
Fig. 3 is the isometric drawing that fission_typed punch of the present invention is in molding state.
Fig. 4 is the sectional view that cylindrical member is shaped in example 1 of the present invention.
Fig. 5 is the forming process flow chart that cylindrical member is shaped in example 1 of the present invention.
Fig. 6 be 1 convex mould of example of the present invention be in molding state can crush-zone front view and vertical view.
Fig. 7 be 1 convex mould of example of the present invention be in divide mould state institute energy crush-zone front view and vertical view.
Drawing reference numeral：1- inclined wedges, 2- guide rails, 3- nitrogen gas springs I, 4- nitrogen gas springs II, 5- slider Is, 6- sliding blocks II, 7- nitrogen
Gas spring fixed plate I, 8- nitrogen gas springs fixed plate II, 9- fission_typed punchs I, 10- fission_typed punchs II, 11- cavity plates, 12- are pre-
Base, 13- forcing presses rotary table, cylindrical members of the 14- with inner ring muscle.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, 3, the invention mainly comprises cavity plate 11, fission_typed punch, split cast mounting, lower tables to revolve
The hydraulic press turned, the mold are installed on a hydraulic press, and the split cast mounting includes inclined wedge 1, guide rail 2, slider I 5, sliding block II
6, nitrogen gas spring I 3, nitrogen gas spring II 4, nitrogen gas spring fixed plate I 7, nitrogen gas spring fixed plate II 8；Guide rail 2 is bolted
On the moved cross beam of hydraulic press, opened up on guide rail 2 one can allow inclined wedge 1 by square through hole, it is rectangular logical at this
Installation can be fixedly connected with the liftout tank on hydraulic press moved cross beam with movable tapered wedge 1,1 upper end of inclined wedge and can be with liftout tank in hole
It moves up and down；It is provided with T-slot on one side in 2 faced downwards workbench of guide rail, identical slider I 5 and sliding block II 6 pass through T
Type groove is mounted on guide rail and is respectively in by symmetrical structure the both sides of inclined wedge 1, and slider I 5 and sliding block II 6 are right-angled trapezium knot
Structure, inclined-plane side are corresponding with two inclined-planes of inclined wedge 1 respectively；It is terminated at the medial plane end of slider I 5 and nitrogen gas spring I 1
Connection is touched, I other end of nitrogen gas spring is fixedly linked with nitrogen gas spring fixed plate I 7, and nitrogen gas spring fixed plate I 7 is bolted
On moved cross beam；It is connect with II 8 end thereof contacts of nitrogen gas spring at the medial plane end of sliding block II 6, II 8 other end of nitrogen gas spring
It is fixedly linked with nitrogen gas spring fixed plate II 8, nitrogen gas spring fixed plate II 8 is bolted on moved cross beam；
The fission_typed punch is made of two full symmetric fission_typed punchs I 9, fission_typed punchs II 10, punch-pin I,
Fission_typed punch II by screw be separately fixed at slider I 5, sliding block II 6 lower end；Fission_typed punch I 9, fission_typed punch II
10 front ends are the front end semicylinder for forming, and rear end is the fixed plate for being fixed on sliding block, before and after connection is in centre
The middle-end semicylinder at both ends；Fission_typed punch I 9, II 10 front end semicylinder of fission_typed punch plane be die joint；Installation
When, fission_typed punch I 9, II 10 its front end of fission_typed punch the plane of semicylinder should ensure that coincidence, while also should ensure that
Die joint is parallel along the direction of motion of guide rail 2T type grooves with sliding block.Slider I 5, sliding block II 6 can in this way driven respectively split type
Punch-pin I 9, fission_typed punch II 10 only edge are parallel to die joint direction and move, and there is no the movements perpendicular to die joint direction, together
When installing two side planes of the semicylinder of its front end overlap, so the two of fission_typed punch I 9, fission_typed punch II 10
Gap is not present between a working portion side plane on vertical die joint direction, to ensure fission_typed punch I 9, split type convex
Mould II 10 will not because axial feed for blank generate it is anti-squeeze effect, and fission_typed punch I 9 and fission_typed punch II 10 it
Between be not present blank.
The fission_typed punch I 9, II 10 front end semicylinder of fission_typed punch radius be less than or equal to cylindrical component in
The least radius in portion；The radius of its middle-end semicylinder is less than the radius of front end semicylinder.
The internal cavity surface body of the cavity plate 11 is cylindrical surface, and the uniformly distributed semicircle being provided on side wall in an axial direction is recessed
Slot, concave die cavity cross section form spline-like；Prefabricated blank 12 selects solid bar, according to the size of the part finally shaped, adopts
Solid bar is cut or is squeezed into the prefabricated blank 12 consistent with 11 cavity cross section of cavity plate by the mode for being machined into or squeezing.
Prefabricated blank 12 is placed in cavity plate 11, cavity plate 11 is fixed by screws on the rotary table 13 below forcing press, can be around
The center axis rotation of 11 cavity of cavity plate, cavity plate 11 drive prefabricated blank 12 in concave die cavity by the spline-like groove on cavity
Mandrel rotates.
When installation, with the starting point that inclined wedge 1 moves downward, the terminal moved upwards is as original state, nitrogen bullet at this time
Spring I 3, nitrogen gas spring II 4 are in compressive state keeps it tight with the inclined-plane of inclined wedge 1 slider I 5, the application active force of sliding block II 6 respectively
Contiguity is touched.And fission_typed punch I 9, the fission_typed punch II 10 being directly fixedly linked with slider I 5, sliding block II 6 respectively are in and close
Mould state, two semicolumns of front end form a complete cylinder, inside the central axis and cavity plate of the cylinder
The center overlapping of axles of cavity.Since nitrogen gas spring I 3, nitrogen gas spring II 4 make inclined wedge to slider I 5, the application of sliding block II 6 thrust respectively
1 inclined-plane is in close contact with inclined wedge 1, while 1 both sides bevel angle of inclined wedge is identical, therefore inclined wedge 1 moves downward can push cunning
Block does the disengaging movement of the opposite direction of synchronous same distance, and slider I 5, sliding block II 6 are divided into and do not continue compression joint therewith
Nitrogen gas spring, while driving the fission_typed punch I 9 of connection fixed thereto, fission_typed punch II 10 to carry out a point mould and moving.It is split type
Punch-pin I 9, fission_typed punch II 10 are separated to designated position, and the stopping of inclined wedge 1 moves downward completion and divides mold process；In dividing mould shape
When fission_typed punch I 9, the fission_typed punch II 10 of state will carry out clamping process, inclined wedge 1 moves upwards then compressed nitrogen bullet
Spring I 3, nitrogen gas spring II 4 push slider I 5, sliding block II 6 to keep being in close contact with inclined wedge 1 respectively, and slider I 5, sliding block may be implemented
II 6 with inclined wedge 1 move and do the movement of synchronous same distance, fission_typed punch I 9, fission_typed punch II 10 are with slider I 5, sliding
Block II 6 realizes molding movement, until fission_typed punch I 9, fission_typed punch II 10 mold, inclined wedge 1 returns to the origin moved downward and stops
It only moves, completes clamping process.
The direction of rotation of cavity plate according in divide the fission_typed punch I 9 of mould state, fission_typed punch II 10 relative to respective
Orientation where when in molding state determines.According to fig. 2 with shown in Fig. 3, when fission_typed punch I 9, fission_typed punch II 10
In when dividing mould state, fission_typed punch I should be faced first, then to observation in divide mould when punch-pin I relative to molding position
It sets in its left, then central axial anticlockwise of the cavity plate around its cavity.It all can be rotated left and right when molding, but since sliding block can only be
The left side of inclined wedge 1 moves, and fission_typed punch I 9, fission_typed punch II 10 are in molding state when original state, so relatively
In die-closed position, divide the fission_typed punch I 9 of mould distance always in die-closed position left side side in difference, and when mounted
Have determined that their this relative position relation, so in order to easy to operate in entire forming process, cavity plate 11 always towards
One left side rotary motion.
In forming process, cavity plate 11 drives prefabricated blank 12 to be rotated by defined direction of rotation always, split type convex
Mould I 9, fission_typed punch II 10 generate anti-squeeze to prefabricated blank 12 and act on along the central axial lower feeding of 11 cavity of cavity plate.It is split type convex
The real contact area of mould I 9, fission_typed punch II 10 and prefabricated blank 12 is fission_typed punch I 9, II 10 pairs of fission_typed punch is pre-
The practical squish area of base 12.Since prefabricated blank 12 rotates, no matter fission_typed punch I 9, fission_typed punch II 10 are in molding
State still divides mould state, can be swept on 12 section of prefabricated blank and cross a circular area always, which is effectively to squeeze
Region.When fission_typed punch I 9, fission_typed punch II 10 are in molding state, practical squish area is equal to effective compressive plane
Product；It is less than effective squish area in practical squish area when dividing mould state.
Since fission_typed punch I 9 and the anti-of fission_typed punch II 10 squeeze effect, prefabricated blank 12 can only be with positioned at cavity plate 11
Within other than the effective crush-zone of punch-pin in the range of flow up, form circle tube member side wall.Round tube wall outside diameter
It is determined by 11 inner diameter of cavity plate, inside diameter is by fission_typed punch I 9 and fission_typed punch II 10 on 12 section of prefabricated blank
The diameter diameter of inswept effective border circular areas is determined.And the diameter depends on fission_typed punch I 9 and fission_typed punch II 10
Working position is in the cylindrical member length apart from farthest point-to-point transmission in the radial direction.For fission_typed punch I 9, fission_typed punch II
For 10, since the working portion of its front end is semicylinder, and moved with die joint direction along parallel, then the length is
The two half-cylinders of II 10 front end of fission_typed punch I 9 and fission_typed punch and die joint intersection, where being parallel to die joint
The maximum distance of cylindrical member in the radial direction.The length with II 10 points of mould distances of fission_typed punch I 9 and fission_typed punch difference
And change, dividing mould move distance length, then the length is long, on the contrary then short.When the shortest distance is that two half molds are in molding state,
The diameter of the complete cylinder of two semicolumns composition of II 10 front end of fission_typed punch I 9 and fission_typed punch.
Barrel is carried along central axis direction into its feature of the cylindrical member of stairstepping inner ring muscle:It is internal diameter along central axis direction
The thickness of barrel changes at discontinuous, i.e. the outer diameter of cylindrical member remains unchanged, and internal diameter changes along central axis direction at discontinuous.
When using above-mentioned die forming, as long as according to the transformation along central axis direction of the internal diameter of cylindrical member, make I 9 He of fission_typed punch
The adjustment when feeding in an axial direction of fission_typed punch II 10 divides mould distance, to change fission_typed punch I 9, fission_typed punch II 10
For the diameter of effective circular extrusion area of prefabricated blank 12, the internal diameter size of the final cylindrical member for changing forming reaches forming
Barrel is carried along central axis direction into the purpose of the cylindrical member of stairstepping inner ring muscle.Specific operating process is：According to cylindrical member
Internal diameter the transformation along central axis direction requirement, when fission_typed punch I 9, fission_typed punch II 10 divide mould distance needs
It when change, should first stop its feed motion in an axial direction, then change and divide mould distance to required size, then stop division
Mould move, continue along central shaft feed, until need next time change divide mould apart from when stop be axially moved, repeat the above process.
A port is sketched with inner ring muscle and the intermediate cylindrical member with along central axis direction for step-like inner ring muscle
14 its forming process is as follows：Cavity plate 11 drives prefabricated blank 12 to rotate, and fission_typed punch I 9, fission_typed punch II 10 are in molding
State is along the central axial lower feeding of 11 cavity of cavity plate, until 12 upper surface of prefabricated blank is more than after certain distance, stopping axial movement, and tiltedly
Wedge 1, which moves downward, pushes slider I 5, sliding block II 6 to slide, and is allowed to compressed nitrogen spring I 3, nitrogen gas spring II 4 respectively, and drive and divide
Body formula punch-pin I 9, fission_typed punch II 10 are done after a point mould moves to certain distance, 1 stop motion of inclined wedge, at this time cylindrical member port
Inner ring muscle forming finish, fission_typed punch I 9, fission_typed punch II 10 holding divide mould state constant, continuation feed one in an axial direction
Set a distance, for shaping cylindrical member barrel.Then inclined wedge 1 moves upwards a certain distance, II 4 points of nitrogen gas spring I 3, nitrogen gas spring
Not Tui Dong slider I 5, sliding block II 6, slider I 5, sliding block II 6 be divided into Dai Dong fission_typed punch I 9, fission_typed punch II 10 along closing
Mould direction moves a distance but not molding completely, stops that mould is divided to move at this time, continues to transport along 11 cavity central axis direction of cavity plate
Stop after dynamic certain distance, complete the forming of the first order step of intermediate staged inner ring muscle, then inclined wedge 1 moves up to point
Body formula punch-pin I 9, fission_typed punch II 10 mold completely, are further continued for being fed in an axial direction for shaping the parallel center of second level step
Then the side of axis stops being axially moved, inclined wedge 1 moves downwardly to fission_typed punch I 9, fission_typed punch II to certain distance
10 required points of mould distances, stopping divide mould to move, and the second level step forming of staged inner ring muscle is completed, then intermediate stairstepping
The forming of inner ring muscle is completed.When completing the forming of intermediate staged inner ring muscle, fission_typed punch I 9, fission_typed punch II 10 are still located
It in dividing mould state, then proceedes to feed certain distance in an axial direction, for completing the barrel below intermediate stairstepping inner ring muscle, then
Molding, fission_typed punch I 9, fission_typed punch II 10 are exited along central axial upper feeding out of cylindrical member 14, complete entire pressure
Process, then vehicle remove the semicircular structure in an axial direction for driving it to rotate for cavity plate on cylindrical member outer wall, complete it is entire plus
Work process.
In entire forming process, due to fission_typed punch I 9, fission_typed punch II 10 can carry out point mould and it is axial into
To movement, the radial and axial load to blank may be implemented, and since cavity plate can drive prefabricated blank to rotate, fission_typed punch
I 9, fission_typed punch II 10 can be realized and loaded to the circumferential direction of blank, use the die forming in the inswept whole circumference of blank
Cylindrical member may be implemented the multidirectional load for blank, increase the deformation extent of blank, reaches cylindrical member and improves its mechanical property
Effect.
Embodiment 1
The port that can be shaped with the mold involved in the present invention carries inner ring muscle and intermediate carry is along central axis direction
For the cylindrical part 14 of step-like inner ring muscle, part section is as shown in figure 4, say forming process in conjunction with Fig. 5-7
It is bright.
It is more than or equal to cavity plate internal diameter using diameter and adds twice of cylindrical member inboard wall groove radially maximum sized solid
Bar is blank, and the length of blank can be in the hope of according to constancy of volume principle before and after forming.Solid blank is machined into cross
Prefabricated blank is put into cavity plate by section and concave die cavity perpendicular to the consistent prefabricated blank of center shaft section.According to arrow in Fig. 5
Instruction is processed：
First, according to as shown in the 1st width figure in Fig. 5, cavity plate is with prefabricated blank with certain speed to anticlockwise.It is split type
Punch-pin I 9 and fission_typed punch II 10 are in molding state, and the working portion of front end forms a complete cylinder, the circle
The central shaft of cylinder and 11 lumen centers overlapping of axles of cavity plate.Then, as shown in the 2nd width figure in Fig. 5, fission_typed punch I 9 and point
Body formula punch-pin II 10 generates anti-squeeze along 11 lumen centers axial direction lower feeding of cavity plate, to prefabricated blank 12 and acts on.In molding state
Fission_typed punch I 9 and fission_typed punch II 10 effective squish area in prefabricated blank 12 are border circular areas, i.e. fission_typed punch I 9
With the practical squish area of II 10 pairs of prefabricated blanks 12 of fission_typed punch, I 9 He of fission_typed punch as shown in the vertical view in Fig. 6
The working portion of II 10 its front end of fission_typed punch forms the circular cross-section of the vertical centre axis direction of a complete cylinder
Area.Anti- due to fission_typed punch I 9 and fission_typed punch II 10 squeezes effect, prefabricated blank along 11 inner cavity of cavity plate with it is split type
Space region between punch-pin I 9 and fission_typed punch II 10 flows up, and forms the side wall of round barrel member.Fission_typed punch I 9
It is equal to the circle tube member port inner ring muscle to be shaped with II 10 axial feed of fission_typed punch to the anti-Sidewall Height squeezed out
When adding the height of II 10 working position of fission_typed punch I 9 or fission_typed punch along the size of central axis direction, stop it is axial into
To movement.
Then, as shown in the 3rd width figure in Fig. 5, inclined wedge 1 moves downward, and pushes slider I 5, sliding block II 6 in 2 upper edge of guide rail
T-slot synchronizes moving backwards for same displacement, and slider I 5, sliding block II 6 are divided into other compressed nitrogen spring I 3, nitrogen gas spring II 4.Together
When slider I 5, sliding block II 6 drive fission_typed punch I 9 with fission_typed punch II 10 along parallel point of mould of die joint respectively.So that fission
The length apart from farthest point-to-point transmission increases in the radial direction in cylindrical member for formula punch-pin I 9 and fission_typed punch II 10.Due to prefabricated blank
12 are driven and rotate, fission_typed punch I 9 and fission_typed punch II 10 an inswept circular face in prefabricated blank 12
Product, which is the effective squish area of fission_typed punch I 9 and fission_typed punch II 10 for prefabricated blank 12, as
The border circular areas that dotted line is constituted in vertical view as shown in Figure 7.
Secondly, as shown in the 4th width figure in Fig. 5, fission_typed punch I 9 and fission_typed punch II 10 are in and divide mould state
In the case of continue to feed in an axial direction, form the relatively thin barrel of a wall thickness.Axial feed to relatively thin barrel formed thereby axial direction
When size reaches the requirement of circle tube member, stop being axially moved.
Again, the inclined wedge 1 as shown in the 5th width figure in Fig. 5 moves upwards, and nitrogen gas spring I 3, nitrogen gas spring II 4 push cunning respectively
Block I 5 does the drawback movement of synchronous same distance with sliding block II 6, is allowed to that fission_typed punch I 9 and fission_typed punch II 10 is driven to close
Mould moves.When the diameter for the border circular areas that fission_typed punch I 9 and fission_typed punch II 10 effectively squeeze is decreased to molding movement
When consistent with the corresponding diameter of first order step among circle tube member, 1 stop motion of inclined wedge, fission_typed punch I 9 and point
The stopping of body formula punch-pin II 10 divides mould to move.Then, fission_typed punch I 9 and fission_typed punch II 10 as shown in the 6th width figure in Fig. 5
It keeps existing point of mould position constant, continues to be axially moved, it is anti-to squeeze out the first stage rank, when the anti-step height squeezed out reaches requirement
When, stop axial fortune work(.
Followed by as shown in the 7th width figure in Fig. 5, inclined wedge 1 continues up, II 4 points of nitrogen gas spring I 3, nitrogen gas spring
Slider I 5 is not continued to press on and sliding block II 6 does drawback movement, is allowed to continue to drive fission_typed punch I 9 and fission_typed punch II 10
Complete molding movement, 1 stop motion of inclined wedge.Then, as shown in the 8th width figure in Fig. 5, fission_typed punch I 9 and fission_typed punch II
10 continue lower movement in an axial direction.Prefabricated blank 12 forms second-order step, until size is equal in split type second-order step in an axial direction
When the size of II 10 working portion of punch-pin I 9 and fission_typed punch is required plus the size of second-order step in an axial direction, stop axial
Movement.As shown in the 9th width figure in Fig. 5, fission_typed punch I 9 and fission_typed punch II 10 in molding state carry out a point mould and transport
Dynamic, when the diameter of its effective crush-zone is equal to the internal diameter size of the lower section cylindrical element of intermediate inner ring muscle, stopping divides mould, at this time
Complete the forming of intermediate staged inner ring muscle.
As shown in the 10th width figure in Fig. 5, fission_typed punch I 9 and fission_typed punch II 10 continue to be axially moved, until formed thereby
Barrel axial dimension stop being axially moved when reaching requirement.Then as shown in the 11st width figure in Fig. 5, fission_typed punch I 9 and point
Body formula punch-pin II 10 molds.Followed by as shown in the 12nd width figure in Fig. 5, fission_typed punch I 9 and fission_typed punch II 10 are in an axial direction
In uplink is exited from cylindrical member 14, forming process is completed.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (4)
1. a kind of multidirectional load rotary extradition forming die of parallel point of mould includes mainly cavity plate, fission_typed punch, mould is divided to fill
It sets, the rotatable hydraulic press of lower table, the mold is installed on a hydraulic press, it is characterised in that：The split cast mounting
It is fixed including inclined wedge, guide rail, slider I, sliding block II, nitrogen gas spring I, nitrogen gas spring II, nitrogen gas spring fixed plate I, nitrogen gas spring
Plate II；Guide rail is bolted on the moved cross beam of hydraulic press, opened up on guide rail one can allow inclined wedge by
Square through hole, being installed in square through hole can be fixed with movable tapered wedge, inclined wedge upper end with the liftout tank on hydraulic press moved cross beam
It connects and can move up and down with liftout tank；It is provided with T-slot on one side in guide rail faced downwards workbench, identical slider I,
Sliding block II is mounted on by T-slot on guide rail and is respectively in by symmetrical structure the both sides of inclined wedge, and slider I and sliding block II are right angle
Trapezium structure, inclined-plane side are corresponding with two inclined-planes of inclined wedge respectively；At the medial plane end of slider I and nitrogen gas spring I 1
End in contact connects, and I other end of nitrogen gas spring is fixedly connected with nitrogen gas spring fixed plate I, and nitrogen gas spring fixed plate I is solid by bolt
It is scheduled on moved cross beam；It is connect with II end thereof contacts of nitrogen gas spring at the medial plane end of sliding block II, II other end of nitrogen gas spring
It is fixedly connected with nitrogen gas spring fixed plate II, nitrogen gas spring fixed plate II is bolted on moved cross beam；
The fission_typed punch is made of two full symmetric fission_typed punchs I, fission_typed punchs II, and fission_typed punch I divides
Body formula punch-pin II by screw be separately fixed at slider I, sliding block II lower end；Fission_typed punch I, II front end of fission_typed punch are
For the front end semicylinder of forming, rear end is the fixed plate for being fixed on sliding block, and centre is in connection rear and front end
Hold semicylinder；Fission_typed punch I, II front end semicylinder of fission_typed punch plane be die joint；When installation, die joint with
The direction of motion of two sliding blocks of split cast mounting is parallel, realizes fission_typed punch I, fission_typed punch II along parallel point of mould of die joint；
The internal cavity surface body of the cavity plate is cylindrical surface, and semi-circular recesses in an axial direction are evenly equipped in internal side wall,
Concave die cavity cross section forms spline-like, prefabricated blank is placed in cavity plate, cavity plate is fixed by screws in the rotation below forcing press
On revolving worktable, cavity plate drives prefabricated blank around the center axis rotation of concave die cavity by the spline-like groove on cavity.
2. a kind of multidirectional load rotary extradition forming die of parallel point of mould according to claim 1, it is characterised in that：Institute
The radius of punch-pin I, II front end semicylinder of punch-pin is stated less than or equal to the least radius inside cylindrical component.
3. a kind of multidirectional load rotary extradition forming die of parallel point of mould according to claim 1, it is characterised in that：Institute
State punch-pin I, II middle-end semicylinder of punch-pin radius be less than front end semicylinder radius.
4. a kind of die sinking method based on the multidirectional load rotary extradition forming die of parallel point of mould described in claim 1, special
Sign is that steps are as follows for the method：
Step 1, when original state, inclined wedge is in the origin moved downward, the terminal moved upwards, and two nitrogen gas springs are in pressure
Contracting state applies thrust to two sliding blocks respectively makes the inclined-plane of itself and inclined wedge be in close contact, the fission_typed punch being fixed below sliding block
I, II it is in molding state；
Step 2, due to two sliding blocks, inclined wedge both sides bevel angle is identical simultaneously with inclined wedge close contact when inclined wedge moves downward, then may be used
To push sliding block to do the disengaging movement of synchronous same distance, two sliding blocks are divided into two nitrogen gas springs for not compressing and contacting therewith, together
When drive fission_typed punch I, II to carry out a point mould along the direction of parallel die joint and move, fission_typed punch I, II reaches specified point
After mould distance, inclined wedge stopping is fed down, and completion divides mold process；
Step 3, when fission_typed punch I, II, which is in, divides mould state, inclined wedge moves upwards, compressed two nitrogen gas springs point
Two sliding blocks and inclined wedge moment is not pushed to be in close contact, two sliding blocks move upwards that synchronize be all drawback movement with inclined wedge, drive
Fission_typed punch I, II carries out molding campaign, until fission_typed punch I, II molds completely, molding movement is completed in inclined wedge stop motion；
Step 4, on cavity plate and forcing press rotary table be fixedly linked, it can be achieved that around concave die cavity central shaft rotary motion,
The determination of direction of rotation：For in the punch-pin I, II for dividing mould state, facing punch-pin I first, punch-pin I is then observed relative to conjunction
Mould position in its left, then cavity plate around cavity plate internal cavity central axial anticlockwise, it is on the contrary then to right rotation, for molding shape
State, which turns left or turns right, all may be used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810414621.2A CN108723106A (en) | 2018-05-03 | 2018-05-03 | A kind of multidirectional load rotary extradition forming die and die sinking method of parallel point of mould |
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| CN201810414621.2A CN108723106A (en) | 2018-05-03 | 2018-05-03 | A kind of multidirectional load rotary extradition forming die and die sinking method of parallel point of mould |
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| CN111389944A (en) * | 2020-03-26 | 2020-07-10 | 燕山大学 | Extrusion rotary forming method for thick-wall cylinder |
| CN111633053A (en) * | 2020-06-10 | 2020-09-08 | 燕山大学 | Multidirectional extrusion strong-deformation die and process thereof |
| CN112453086A (en) * | 2020-09-30 | 2021-03-09 | 中北大学 | Multi-motion-form pressing and twisting combined loading extrusion equipment |
| CN112453087A (en) * | 2020-09-30 | 2021-03-09 | 中北大学 | Movable rotary driving device and multi-motion-form pressing-twisting combined loading extrusion equipment |
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| CN112453086A (en) * | 2020-09-30 | 2021-03-09 | 中北大学 | Multi-motion-form pressing and twisting combined loading extrusion equipment |
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