CN104841716B - Two dimension high-frequency flutter cold extruding die - Google Patents
Two dimension high-frequency flutter cold extruding die Download PDFInfo
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- CN104841716B CN104841716B CN201510222663.2A CN201510222663A CN104841716B CN 104841716 B CN104841716 B CN 104841716B CN 201510222663 A CN201510222663 A CN 201510222663A CN 104841716 B CN104841716 B CN 104841716B
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- Prior art keywords
- die
- axis
- tremor
- flutter generator
- flutter
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of two dimension high-frequency flutter cold extruding die, including shaping mechanism, shedding mechanism, bindiny mechanism and tremor generating mechanism；Tremor generating mechanism includes X-axis tremor generating mechanism and Y-axis tremor generating mechanism, described X-axis tremor mechanism includes that left X-axis flutter generator and right X-axis flutter generator, described Y-axis tremor generating mechanism include front Y-axis flutter generator and rear Y-axis flutter generator；Four described flutter generators have identical structure, are bolted on above-mentioned upper junction plate, lower connecting plate；The head of four described flutter generators contacts with above-mentioned die fixed block in uniform way, to realize driving its motion.Present configuration is the compactest, and production cost is low, and the present invention can provide the high frequency tremor of both direction respectively, and frequency, amplitude are controlled, non-interference, while completing " difficult formation of parts " vibration-extrusion, and can guarantee that its dimensional accuracy.
Description
Technical field
The present invention relates to a kind of cold extrusion die, in particular, relate to a kind of two dimension high-frequency flutter cold extruding die.
Background technology
Cold extruding technique, as a kind of precision plastic forming technology, has advantages such as " production increases with quality up and cost of production down, low costs ",
It is a national auto industry level, industrialized level or even a kind of important symbol of level of modernization and reflection.But at cold-extruded
When pressure produces product, blank is made deformation force significantly increase by three-dimensional compressive stress effect, simultaneously because forming accuracy is required, its
Material at room temperature flow stress is very big, and shape the most own is complex, and the frictional force between mould and blank also hampers gold
Belonging to the flowing of blank, more arrive the final stage frictional force shaped the biggest, metal flow is the most difficult, and the deformation of such final stage resists
Power often has ascending to heaven of a phase step type, if extrusion equipment tonnage is not enough, easily causes the part shape squeezed out to produce
Defect, the hugest resistance of deformation it is also proposed harsher requirement to mold materials and life-span.Therefore, for being referred to as in the industry
For so-called " difficult formation of parts ", these parts of cold extrusion need large-tonnage forcing press, and the latter's fancy price makes
Obtain enterprise to be often difficult to bear.Obviously, frictional force and the resistance of deformation of forming process especially final stage how is reduced,
Become cold extruding technique and be applied to " difficult formation of parts " urgent problem.
In material forming or the course of processing, if machined material (or mould) is actively applied certain orientation, frequency and
The vibration that amplitude is controlled, it is likely that obtain some results being conducive to processing, this mode is referred to as vibration secondary process or vibration
Processing.At present, the principal mode of vibrational excitation has: power ultrasonic, mechanical type, electromagnetic type, fluid pressure type etc., and wherein power surpasses
Sound is most widely used general.
But power ultrasonic to have output limited, usually 1～2kW, the exciting force therefore produced is little, is not suitable for cold extrusion
Processing；Mechanical type excitation structure is simple, and output exciting force is big, but upper limiting frequency is low, amplitude and frequency regulation difficulty；Electromagnetic type
Exciting device can produce the vibrational waveform of complexity, but be affected by intrinsic magnetic saturation and limit, and is difficult to obtain bigger exciting force, sets in addition
Standby structure is complicated, and amplitude finite sum needs extra chiller.Therefore, above-mentioned several device is not all suitable for " difficult shaping zero
Part " vibration-extrusion.
Being provided that sufficiently large exciting force based on hydraulically powered mode of vibration, one form of which is to be forced by oil liquid pressure to quiver
Cylinder top board generation elastic deformation of shaking realizes vibration, but owing to the elastic deformation amount of metal cannot accurately control, causes shaking of vibration
Unpredictable and control, this causes certain obstruction and restriction for practical study and the application of cold extrusion vibration machining.
Summary of the invention
It is an object of the invention to cold-extrusion shaping and the size essence overcoming existing cold extrusion die can not realize " difficult formation of parts "
Degree can not meet requirement and existing mode of vibration based on hydraulic driving mode output exciting force is not enough, the uncontrollable problem of amplitude,
Providing a kind of can provide enough extruding force, frequency of vibration and amplitude controlled in the two directions, it is possible to ensure part forming
The two-dimentional high-frequency flutter cold extruding die of precision.
The present invention is achieved through the following technical solutions above-mentioned purpose: two dimension high-frequency flutter cold extruding die, including shaping mechanism,
Shedding mechanism, bindiny mechanism and tremor generating mechanism；
Described shaping mechanism includes cope match-plate pattern, punch Flange joint block, punch fixed block, punch, die, lower punch, die
Fixed block, die socket, die Flange joint block, lower bolster, die shoe, described punch is arranged in described punch fixed block,
Described punch fixed block is connected with punch Flange joint block and the cope match-plate pattern of surface by bolt；Described die is arranged on described convex
In die fixed block immediately below mould, described die contacts with the described die socket of underface, and described die socket is recessed with underface
Modulus method orchid contiguous block contacts, and described die fixed block is connected with die Flange joint block and the lower bolster of underface by bolt；Institute
The die shoe stating lower bolster and underface is bolted；Described lower punch is positioned at described die, the lower surface of lower punch with
Described die socket contacts；
Described shedding mechanism includes liftout sheet and ejector beam；Described liftout sheet is the strip of cross section circular arc, be arranged on described under
In the emptying aperture of punch and die socket, described ejector beam is arranged on described die Flange joint block, lower bolster and the centre bore of die shoe
In, the upper end of described ejector beam contacts with described liftout sheet；
Described bindiny mechanism includes the upper junction plate for fixing tremor generating mechanism upper end and for fixing under tremor generating mechanism
The lower connecting plate of end；Described lower connecting plate is symmetrical structure, and described lower connecting plate is bolted on described die shoe, institute
Stating upper junction plate and be positioned at the surface of lower connecting plate, described upper junction plate is connected by bolt and described lower connecting plate are fixing；
Described tremor generating mechanism includes X-axis tremor generating mechanism and Y-axis tremor generating mechanism, and described X-axis tremor occurs
Mechanism includes that left X-axis flutter generator and right X-axis flutter generator, described Y-axis tremor generating mechanism include front Y-axis tremor
Generator and rear Y-axis flutter generator；Described left X-axis flutter generator and right X-axis flutter generator are symmetrically distributed in described
The left and right sides of die fixed block, it is solid that described front Y-axis flutter generator and rear Y-axis flutter generator are symmetrically distributed in described die
Determine both sides before and after block, described left X-axis flutter generator, right X-axis flutter generator, front Y-axis flutter generator and rear Y
Axle flutter generator has identical structure, described left X-axis flutter generator, right X-axis flutter generator, front Y-axis
The head of flutter generator and rear Y-axis flutter generator is all connected with die fixed block, described left X-axis flutter generator, right X
The two ends up and down of axle flutter generator, front Y-axis flutter generator and rear Y-axis flutter generator are separately fixed at described upper junction plate
With on described lower connecting plate.
Further, each described flutter generator all includes cylinder barrel, piston, piston rod, left blind flange, right blind flange and work
Stopper rod head；Described left blind flange and right blind flange are fixed on the upper and lower of the two ends of described cylinder barrel, described left blind flange and right blind flange
Two ends connect upper junction plate and lower connecting plate respectively, and one end of described piston rod connects piston, and the other end connects piston rod head；Institute
The end face stating piston rod head contacts with described die ring for fixing, and described cylinder barrel has two hydraulic fluid ports；Described piston rod is through described
Left blind flange also passes through two symmetrical dust rings and described left blind flange sealing structure.
Further, described piston is sealed by two symmetrical ring structures with inner wall of cylinder.
Further, described X-axis tremor generating mechanism is respectively adopted two different high frequency valves from described Y-axis tremor generating mechanism
Being controlled, the control of two high frequency valves is separate.The frequency that two high frequency valves send is relatively prime, it is to avoid X-axis and Y-axis two
Tremor on direction interacts.
The technology of the present invention is contemplated that: two dimension high-frequency flutter cold extruding die of the present invention, at the die fixed block of mould
Surrounding is uniformly distributed four flutter generators, and the flutter generator on same straight line uses same high frequency valve to control, but oil inlet and outlet
It is in opposite direction so that the flutter generator on same straight line moves in the same direction, so that mould ensures into while accepting zitterbewegung
Product precision；The control frequency of the tremor generating mechanism of both direction is relatively prime simultaneously, to ensure the not mutual shadow of tremor in both direction
Ring；In each flutter generator on piston rod connect piston rod head to increase the contact area of its and recessed model fixing seat, piston rod and
Piston is connected by welding manner, and upper end is spacing, to prevent piston from blocking hydraulic fluid port, piston rod and blind flange by the shaft shoulder of piston rod
Between use combination movable sealing to connect, owing to piston and piston rod only carry out small motion, do not interfere with the effect of sealing.
During work, fix mould and tremor generating means.As a example by right X flutter generator, fluid is from cylinder barrel side two hydraulic fluid port
Enter and full cylinder barrel oil pocket, due to the sealing between piston and cylinder barrel, and piston and piston rod, cylinder barrel oil pocket by piston every
From becoming upper and lower two parts, and connected with hydraulic control valve by upper and lower hydraulic fluid port respectively；By parameter is specified in hydraulic control valve input
Vibration signal, the oil liquid pressure in lower oil cavitie on controllable cylinder barrel, piston and piston rod under the effect of upper lower oil cavitie pressure differential,
Reciprocating motion a little, piston head and contacting dies, driven mold micro breadth oscillation is carried out in cylinder barrel；Due on same straight line
Flutter generator uses same controller to control, and the oil circuit of two flutter generators is in opposite direction, can realize driving about die
The reciprocating motion of both direction.Y-axis tremor operation principle is identical with X-axis, but it is relatively prime to control frequency, has completely cut off both direction
Influence each other.
The beneficial effects of the present invention is: present configuration is simple, low cost, and the present invention is in conventional extruded equipment Foundations,
Increase by two set tremor generating mechanisms can realize, simple in construction；Use high frequency valve as the controller of flutter generator, develop
More ripe, price is relatively low；Flutter generator of the present invention uses hydraulic-driven, and its frequency of vibration is high, and shakes
Controlled；Two flutter generators in left and right vibrate simultaneously, it is ensured that the stability of dither；The present invention can provide respectively
The high frequency tremor of both direction, and frequency, amplitude are controlled, non-interference, complete the same of " difficult formation of parts " vibration-extrusion
Time, and can guarantee that its dimensional accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of two dimension high-frequency flutter cold extruding die of the present invention.
Tu2Shi bindiny mechanism of the present invention, the top view of tremor generating mechanism.
Fig. 3 is the structural representation of upper junction plate of the present invention.
Fig. 4 is the top view of upper junction plate of the present invention.
Fig. 5 is the structural representation of lower connecting plate of the present invention.
Fig. 6 is the top view of lower connecting plate of the present invention.
Fig. 7 is the structural representation of tremor generating mechanism of the present invention.
Fig. 8 is X-axis Flutter Control schematic diagram of the present invention.
In figure, 1-cope match-plate pattern, 2-punch Flange joint block, 3-punch fixed block, 4-punch, 5-upper junction plate, the left blind flange of 6-,
The right blind flange of 7-, 8-piston rod, 9-piston rod head, 10-piston, 11-cylinder barrel, 12-lower connecting plate, 13-lower bolster, 14-lower mold
Seat, 15-die Flange joint block, 16-die socket, 17-liftout sheet, 18-lower punch, 19-die, 20-die fixed block, 21-
Material, 22-ejector beam.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Fig. 1～8, a kind of two dimension high-frequency flutter cold extruding die, including shaping mechanism, described shaping mechanism includes punch
4 and die 19, described punch 4 is arranged in punch fixed block 3, and described punch fixed block 3 is by bolt and surface
Punch Flange joint block 2 and cope match-plate pattern 1 connect, be positioned at the described die 19 immediately below punch and be arranged on die fixed block 20
In, described die 19 contacts with the die socket 16 of underface, described die socket 16 and the die Flange joint of underface
Block 15 contacts, and described die fixed block 20, die Flange joint block 15 are bolted, described die Flange joint
Block 15 is connected with lower bolster 13 by bolt, and described lower bolster 13 is connected with die shoe 14 by bolt, lower punch 18
In described die 19, lower surface contacts with described die socket 16.
Described two-dimentional high-frequency flutter cold extruding die also includes that shedding mechanism, described shedding mechanism include liftout sheet 17 and liftout
Bar 22.The described strip that liftout sheet 17 is cross section circular arc, is arranged on above-mentioned lower punch 18 and above-mentioned die socket 16
Emptying aperture in, described ejector beam 22 is arranged on above-mentioned die Flange joint block 15, lower bolster 13 and die shoe 14 center
In hole, the upper end of described ejector beam contacts with described liftout sheet 17.
Described two-dimentional high-frequency flutter cold extruding die also includes bindiny mechanism and tremor generating mechanism, and described bindiny mechanism includes
Upper junction plate 5 and lower connecting plate 12.Described upper junction plate, lower connecting plate have symmetrical structure, described lower connecting plate 12
Being connected with die shoe 14, upper junction plate 5 is positioned at the surface of lower connecting plate, is connected with lower connecting plate 12 by uniform bolt.
Through hole is had so that the passing through of oil circuit on described upper junction plate 5.Described tremor generating mechanism has identical structure, bag
Include cylinder barrel 11, piston rod 8, piston 10, left flange 6, right flange 7 and piston rod head 9.Described tremor generating mechanism leads to
Crossing left and right flange 6,7 to be fixed on upper and lower connecting plate 5,12, described piston rod head 9 is fixed with above-mentioned die in uniform way
Block 20 surrounding contacts.Described piston rod 8 positions by the shaft shoulder with described left flange 6 upper end, and described piston rod 8 is with described
Piston 10 by being welded together.Two symmetrical dust ring structures are used between described piston rod 8 and left flange 6
Seal.Which is used to achieve movable sealing, it is of course also possible to use other sealing means.Described piston rod head 9 passes through
Screw thread is connected with piston rod 8, and described cylinder barrel 11 has two hydraulic fluid ports, with described left and right flange 6,7 by the company of welding
Connect.
The invention provides the control thinking of tremor generating mechanism of a kind of two dimension high-frequency flutter cold extruding die: described same always
Tremor generating mechanism on line uses same high frequency valve to control, and the control frequency of two high frequency valves is relatively prime simultaneously, to avoid two sides
To interfere.Fig. 8 is the control schematic diagram of X-axis tremor generating mechanism.
During work, while punch 4 extrusion sections, control tremor generating mechanism by high frequency valve and die fixed block 20 is applied two
The frequency in individual direction and the high frequency tremor of amplitude-controllable, and be delivered on die 19, to realize vibration-extrusion, due to high frequency tremor
Amplitude up to micron order, thus without the dimensional accuracy affecting profiled member.
Above-described embodiment is presently preferred embodiments of the present invention, is not the restriction to technical solution of the present invention, as long as without
The technical scheme that creative work can realize on the basis of above-described embodiment, the right being regarded as falling into patent of the present invention is protected
In the range of protecting.
Claims (3)
1. two dimension high-frequency flutter cold extruding die, it is characterised in that: include shaping mechanism, shedding mechanism, bindiny mechanism and tremor
Generating mechanism；
Described shaping mechanism includes cope match-plate pattern, punch Flange joint block, punch fixed block, punch, die, lower punch, die
Fixed block, die socket, die Flange joint block, lower bolster, die shoe, described punch is arranged in described punch fixed block,
Described punch fixed block is connected with punch Flange joint block and the cope match-plate pattern of surface by bolt；Described die is arranged on described convex
In die fixed block immediately below mould, described die contacts with the described die socket of underface, and described die socket is recessed with underface
Modulus method orchid contiguous block contacts, and described die fixed block is connected with die Flange joint block and the lower bolster of underface by bolt；Institute
The die shoe stating lower bolster and underface is bolted；Described lower punch is positioned at described die, the lower surface of lower punch with
Described die socket contacts；
Described shedding mechanism includes liftout sheet and ejector beam；Described liftout sheet is the strip of cross section circular arc, be arranged on described under
In the emptying aperture of punch and die socket, described ejector beam is arranged on described die Flange joint block, lower bolster and the centre bore of die shoe
In, the upper end of described ejector beam contacts with described liftout sheet；
Described bindiny mechanism includes the upper junction plate for fixing tremor generating mechanism upper end and for fixing under tremor generating mechanism
The lower connecting plate of end；Described lower connecting plate is symmetrical structure, and described lower connecting plate is bolted on described die shoe, institute
Stating upper junction plate and be positioned at the surface of lower connecting plate, described upper junction plate is connected by bolt and described lower connecting plate are fixing；
Described tremor generating mechanism includes X-axis tremor generating mechanism and Y-axis tremor generating mechanism, and described X-axis tremor occurs
Mechanism includes that left X-axis flutter generator and right X-axis flutter generator, described Y-axis tremor generating mechanism include front Y-axis tremor
Generator and rear Y-axis flutter generator；Described left X-axis flutter generator and right X-axis flutter generator are symmetrically distributed in described
The left and right sides of die fixed block, it is solid that described front Y-axis flutter generator and rear Y-axis flutter generator are symmetrically distributed in described die
Determine both sides before and after block, described left X-axis flutter generator, right X-axis flutter generator, front Y-axis flutter generator and rear Y
Axle flutter generator has identical structure, described left X-axis flutter generator, right X-axis flutter generator, front Y-axis
The head of flutter generator and rear Y-axis flutter generator is all connected with die fixed block, described left X-axis flutter generator, right X
The two ends up and down of axle flutter generator, front Y-axis flutter generator and rear Y-axis flutter generator are separately fixed at described upper junction plate
With on described lower connecting plate；
Each described flutter generator all includes cylinder barrel, piston, piston rod, left blind flange, right blind flange and piston rod head；Institute
Stating left blind flange and right blind flange is fixed on the two ends of described cylinder barrel, the two ends up and down of described left blind flange and right blind flange connect respectively
Connecting connecting plate and lower connecting plate, one end of described piston rod connects piston, and the other end connects piston rod head；Described piston rod head
End face contact with described die ring for fixing, described cylinder barrel has two hydraulic fluid ports；Described piston rod is through described left blind flange also
By two symmetrical dust rings and described left blind flange sealing structure.
Two dimension high-frequency flutter cold extruding die the most according to claim 1, it is characterised in that: described piston and inner wall of cylinder
Sealed by two symmetrical ring structures.
Two dimension high-frequency flutter cold extruding die the most according to claim 1, it is characterised in that: described X-axis tremor generation machine
Structure is respectively adopted two different high frequency valves from described Y-axis tremor generating mechanism and is controlled, and the control of two high frequency valves is the most only
Vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222663.2A CN104841716B (en) | 2015-05-04 | 2015-05-04 | Two dimension high-frequency flutter cold extruding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222663.2A CN104841716B (en) | 2015-05-04 | 2015-05-04 | Two dimension high-frequency flutter cold extruding die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104841716A CN104841716A (en) | 2015-08-19 |
| CN104841716B true CN104841716B (en) | 2017-01-04 |
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ID=53841914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510222663.2A Expired - Fee Related CN104841716B (en) | 2015-05-04 | 2015-05-04 | Two dimension high-frequency flutter cold extruding die |
Country Status (1)
| Country | Link |
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| CN (1) | CN104841716B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1929558A1 (en) * | 1969-06-11 | 1970-12-17 | Ibm Deutschland | Cold extrusion press |
| JP5558774B2 (en) * | 2009-10-09 | 2014-07-23 | 株式会社Ｕａｃｊ | Extrusion processing apparatus and extrusion processing method |
| CN202366981U (en) * | 2011-11-29 | 2012-08-08 | 浙江工业大学 | High-frequency flutter cold extrusion die |
| CN102581054B (en) * | 2012-02-29 | 2014-03-26 | 浙江工业大学 | High frequent chattering cold extruding die possessing ejection rod |
| CN103447339A (en) * | 2013-08-23 | 2013-12-18 | 浙江工业大学 | Triaxial high-frequency composite flutter cold extrusion die |
| CN204769940U (en) * | 2015-05-04 | 2015-11-18 | 浙江工业大学 | Two dimension high frequency cold extruding die that shimmys |
-
2015
- 2015-05-04 CN CN201510222663.2A patent/CN104841716B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104841716A (en) | 2015-08-19 |
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Granted publication date: 20170104 Termination date: 20190504 |