CN103447339A - Triaxial high-frequency composite flutter cold extrusion die - Google Patents
Triaxial high-frequency composite flutter cold extrusion die Download PDFInfo
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- CN103447339A CN103447339A CN2013103737693A CN201310373769A CN103447339A CN 103447339 A CN103447339 A CN 103447339A CN 2013103737693 A CN2013103737693 A CN 2013103737693A CN 201310373769 A CN201310373769 A CN 201310373769A CN 103447339 A CN103447339 A CN 103447339A
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Abstract
The invention discloses a triaxial high-frequency composite flutter cold extrusion die. The die comprises a molding mechanism, an X-axis flutter generation mechanism, a Y-axis flutter generation mechanism and a Z-axis flutter generation mechanism, wherein the molding mechanism comprises a convex die, a concave die, an upper die plate, a convex die fixing ring, a prestress ring, a compaction ring, a concave die cushion block, a concave die backup ring and a lower die plate; the X-axis flutter generation mechanism comprises an X-axis bearing plate, a connecting plate, a first high-frequency valve and an X-axis flutter device; the Y-axis flutter generation mechanism comprises a Y-axis bearing plate, the connecting plate, a Y-axis flutter device and the first high-frequency valve; the Z-axis flutter generation mechanism comprises a second high-frequency valve and a Z-axis flutter device, the Z-axis flutter device comprises an upper plate and a lower plate, and the valve cores of the first high-frequency valve and the second high-frequency valve are connected with the output shaft of a servo motor. The cold extrusion die disclosed by the invention has the beneficial effects that vibrations from three directions can be respectively provided, the vibration output force is large, the frequency is high, and the amplitude is small, and when vibration and extrusion of a part which is difficult to mold are finished, the dimensional accuracy of the part can be ensured.
Description
Technical field
The present invention relates to the compound flutter cold extruding die of a kind of three axle high frequency.
Background technology
Cold extrusion, as a kind of precision plastic forming technology, is a kind of important symbol and the reflection that represents national auto industry level, industrialized level and even a modernization level.Yet when product is produced in cold extrusion, blank is subject to three-dimensional compressive stress and resistance of deformation is enlarged markedly in mould, simultaneously due to forming accuracy is had to requirement, its material at room temperature flow stress is very large, shape own is comparatively complicated in addition, frictional force between mould and blank also hampers flowing of metal stock, more arrive the final stage frictional force be shaped larger, metal flow is more difficult, the resistance of deformation of final stage often has ascending to heaven of a phase step type like this, if extrusion equipment tonnage deficiency, very easily cause the part shape squeezed out to produce defect.Also mold materials has been proposed to harsh requirement, except needs have high strength, also needed enough impact flexibility, wearability and temper resistance simultaneously.For being called in the industry so-called " difficult formation of parts ", as adopted cold-extrusion shaping, need the large-tonnage forcing press, and latter's fancy price makes enterprise often be difficult to bear.Obviously, how to reduce the especially resistance of deformation of final stage of forming process, become cold extruding technique and be applied to " difficult formation of parts " urgent problem.
In traditional metal plastic forming processes, if utilize certain device to initiatively applied the controlled vibration of certain orientation, frequency and amplitude by mould or workpiece, not only can reduce the flow stress of plastic force, frictional force and material between workpiece and mould, the workpiece that simultaneously can also make to obtain has the forming accuracy of better surface quality and Geng Gao, and this mode is called vibration secondary process or vibration processing.At present, the vibrational excitation form has power ultrasonic, mechanical type, electromagnetic type, fluid pressure type etc., and wherein the power ultrasonic application is the most extensive.
Yet, although the power ultrasonic excited frequency is very high, amplitude is also less, be conducive to keep the formed precision of extrusion, but input power own is limited, power output is 1～2kW usually, therefore the exciting force produced is less, can only be applied in plastic working that required extruding force is less.The mechanical type exciting device is simple in structure, cost is low, and the output exciting force is large, but upper limiting frequency is lower, amplitude and frequency adjustment difficulty; The electromagnetic type exciting device can produce complicated vibrational waveform, and operating frequency range is larger, but, owing to being subject to intrinsic magnetically saturated restriction, is difficult for obtaining large exciting force, and device structure is complicated in addition, amplitude is limited and need radiator cooler; Although the vibration of conventional fluid pressure type has, High power output, dynamic response are high, vibration frequency and amplitude are easy to the characteristics of regulating, and difficulty realizes dither, and produced simultaneously amplitude is also larger, causes the dimensional accuracy of drip molding to be difficult to be guaranteed.Therefore, above-mentioned several exciting device all is not suitable for the vibration-extrusion of " difficult formation of parts ".
Summary of the invention
Can not realize the cold-extrusion shaping of " difficult formation of parts " and the problem that dimensional accuracy can not meet the demands in order to overcome existing cold extrusion die, the invention provides and a kind ofly can obtain enough large exciting force, higher vibration frequency and less amplitude simultaneously in three directions, and the compound flutter cold extruding die of three axle high frequencies of assurance part forming dimensional accuracy.
The compound flutter cold extruding die of three axle high frequency of the present invention, it is characterized in that: comprise shaping mechanism, X-axis flutter generating mechanism, Y-axis flutter generating mechanism, Z axis flutter generating mechanism, described shaping mechanism comprises punch, die, cope match-plate pattern, the punch retainer plate, shrink ring, compacting ring, the die cushion block, the die packing ring, lower bolster, described punch is arranged in the punch retainer plate of described cope match-plate pattern, be positioned at punch under described die be arranged on shrink ring, described die with under described die cushion block upper surface contact, described die cushion block is arranged in the die packing ring, described compacting ring is enclosed within the top of described shrink ring, and described compacting ring is bolted on described lower bolster,
Described X-axis flutter generating mechanism comprises X-axis support plate, above-mentioned connecting plate, the first high frequency valve, X-axis flutter device, above-mentioned lower bolster is fixed on the X-axis support plate, described X-axis flutter device is fixed with described X-axis support plate, described connecting plate respectively, and described X-axis support plate is placed in the X axis groove arranged on described connecting plate, tremble the first oil duct of device of described X-axis is communicated with described the first high frequency valve; Described X-axis flutter device involving vibrations plate, with the fastening fixed head of oscillating plate, offer the first arc groove in the middle of described oscillating plate, described fixed head is provided with the first oil duct for the hydraulic oil turnover, and an end of described the first oil duct is communicated with described the first arc groove, the other end is communicated with described the first high frequency valve;
Described Y-axis flutter generating mechanism comprises Y-axis support plate, above-mentioned connecting plate, Y-axis flutter device, the first high frequency valve identical with above-mentioned X-axis flutter device structure, described Y-axis flutter device is fixed with described connecting plate, described Y-axis support plate respectively, and described connecting plate is placed in the Y-axis groove of described Y-axis support plate upper surface setting; The tremble oil duct of device of described Y-axis is communicated with described the first high frequency valve;
Described Z axis flutter generating mechanism comprises the second high frequency valve, Z axis flutter device, the lower plate that described Z axis flutter device comprises upper plate, is tightly connected with upper plate, upper plate and the above-mentioned cope match-plate pattern of described Z axis flutter device are fixed, described lower plate lower surface is offered the second arc groove, described lower plate is provided with the second oil duct for the hydraulic oil turnover, one end of described the second oil duct is communicated with described the second arc groove, and the other end of described the second oil duct is communicated with described the second high frequency valve;
The spool of described the first high frequency valve and described the second high frequency valve is connected with the output shaft of servomotor, and described spool land is circumferentially evenly offered the groove matched with window on valve pocket; Described the first high frequency valve is identical with the structure of described the second high frequency valve.
Described X-axis support plate upper surface is provided with the first T-shaped groove, and described lower bolster is fixed in the described first T-shaped groove by securing member.
Described Z axis flutter device be positioned at described cope match-plate pattern directly over, described upper plate upper surface is provided with the second T-shaped groove and circular trough, described cope match-plate pattern is fixed on the second T-shaped groove of described upper plate by securing member.
Described X axis groove, described Y-axis groove are U-shaped groove.
Between described oscillating plate and described fixed head, all be tightly connected by securing member and O type circle between described upper plate and described lower plate.
Described securing member all is positioned at the outer ring of described the first arc groove and the second deep-slotted chip breaker.
Operation principle: when hydraulic oil, when by oil circuit, entering first arc groove of oscillating plate of X/Y axle flutter device, interior oil hydraulic pressure increases by force, makes oscillating plate mid portion projection; When fluid flows out the first arc groove of oscillating plate, its interior oil hydraulic coupling is got back to ortho states, and the oscillating plate mid portion is got back to initial position; Control the pressure that enters, flows out frequency and hydraulic oil of hydraulic oil by the first high frequency valve, can realize that X/Y axle flutter device is with certain frequency and amplitude vibration, simultaneously X-axis flutter device is connected with the X-axis support plate, Y-axis flutter device is connected lower bolster and fixes with X-axis support plate, Y-axis gripper shoe respectively with the Y-axis support plate, so the die parts will be done the axial vibration of X/Y along with X-axis flutter device or Y-axis flutter device; And when the hydraulic oil warp enters the second arc groove of upper plate by oil circuit, interior oil hydraulic pressure increases by force, make upper plate mid portion projection: when fluid flows out the second arc groove of upper plate, its interior oil hydraulic coupling is got back to ortho states, and the upper plate mid portion is got back to initial position; Control the pressure that enters, flows out frequency and hydraulic oil of hydraulic oil by the second high frequency valve, can realize that Z-direction is vibrated with certain frequency and amplitude, and the punch parts are fixed on the upper plate of Z axis flutter device by securing member, therefore also will carry out periodic vibration along with Z axis flutter device, thereby realize the high frequency extrusion and vibration of punch.
The invention has the beneficial effects as follows: the vibration of three directions can be provided respectively, and the vibration High power output, frequency is higher and amplitude is less, when completing " difficult formation of parts " vibration-extrusion, and can guarantee its dimensional accuracy.
The accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
Fig. 2 is the top view of builder of the present invention, X, Y-axis flutter generating mechanism.
Fig. 3 is Fig. 1 left view.
Fig. 4 is the structure chart of X-axis flutter device or Y-axis flutter device.
Fig. 5 is Fig. 4 left view.
Fig. 6 is Fig. 4 top view.
Fig. 7 is Fig. 4 right view.
Fig. 8 is Z axis flutter device structure chart.
Fig. 9 is Fig. 8 top view.
Figure 10 is connecting board structure figure of the present invention.
Figure 11 is Figure 10 top view.
Figure 12 is Figure 10 left view.
Figure 13 is Y-axis structure support plate figure of the present invention.
Figure 14 is Figure 13 top view.
Figure 15 is Figure 13 left view.
Figure 16 is X-axis supporting plate structure figure of the present invention.
Figure 17 is Figure 16 right view.
Figure 18 is Figure 16 top view.
Figure 19 is Z axis flutter device oil-feed view.
Figure 20 is the fuel-displaced view of Z axis flutter device.
Figure 21 is X-axis flutter device and Y-axis flutter device oil-feed view.
Figure 22 is X-axis flutter device and the fuel-displaced view of Y-axis flutter device.
The specific embodiment
Further illustrate the present invention below in conjunction with accompanying drawing
With reference to accompanying drawing:
The compound flutter cold extruding die of embodiment 1 three axle high frequency of the present invention, comprise shaping mechanism 1, X-axis flutter generating mechanism 2, Y-axis flutter generating mechanism 3, Z axis flutter generating mechanism 4, described shaping mechanism 1 comprises punch 11, die 12, cope match-plate pattern 13, punch retainer plate 14, shrink ring 15, compacting ring 16, die cushion block 17, die packing ring 18, lower bolster 19, described punch 11 is arranged in the punch retainer plate 14 of described cope match-plate pattern 13, be positioned at punch 11 under described die 12 be arranged on shrink ring 15, described die 12 with under described die cushion block 17 upper surfaces contact, described die cushion block 17 is arranged in die packing ring 18, described compacting ring 16 is enclosed within the top of described shrink ring 15, and described compacting ring 16 is bolted on described lower bolster 19,
Described X-axis flutter generating mechanism 2 comprises X-axis support plate 21, above-mentioned connecting plate 22, the first high frequency valve 23, X-axis flutter device 24, above-mentioned lower bolster 19 is fixed on X-axis support plate 21, described X-axis flutter device 24 is fixed with described X-axis support plate 21, described connecting plate 22 respectively, and described X-axis support plate 21 is placed on described connecting plate 22 in the X axis groove arranged, tremble the first oil duct of device 24 of described X-axis is communicated with described the first high frequency valve 23; Described X-axis flutter device 24 involving vibrations plates 241, with the fastening fixed head 242 of oscillating plate 241, offer the first arc groove 2411 in the middle of described oscillating plate 241, described fixed head 242 is provided with the first oil duct 2421 for the hydraulic oil turnover, and an end of described the first oil duct 2421 is communicated with described the first arc groove 2411, the other end is communicated with described the first high frequency valve 23;
Described Y-axis flutter generating mechanism 3 comprises Y-axis support plate 31, above-mentioned connecting plate 22, Y-axis flutter device 33, the first high frequency valve 23 identical with above-mentioned X-axis flutter device 24 structures, described Y-axis flutter device 33 is fixed with described connecting plate 22, described Y-axis support plate respectively, and described connecting plate 22 is placed in the Y-axis groove of described Y-axis support plate 31 upper surfaces settings; The tremble oil duct of device 33 of described Y-axis is communicated with described the first high frequency valve 23;
Described Z axis flutter generating mechanism 4 comprises the second high frequency valve 41, Z axis flutter device 42, the lower plate 422 that described Z axis flutter device 42 comprises upper plate 421, is tightly connected with upper plate 421, the upper plate 421 of described Z axis flutter device 42 is fixing with above-mentioned cope match-plate pattern 13, described lower plate 422 lower surfaces are offered the second arc groove 4221, described lower plate 4221 is provided with the second oil duct 4222 for the hydraulic oil turnover, one end of described the second oil duct 4222 is communicated with described the second arc groove 4221, and the other end of described the second oil duct 4222 is communicated with described the second high frequency valve 41;
The spool of described the first high frequency valve and described the second high frequency valve is connected with the output shaft of servomotor, and described spool land is circumferentially evenly offered the groove matched with window on valve pocket; Described the first high frequency valve is identical with the structure of described the second high frequency valve.
Described X-axis support plate 21 upper surfaces are provided with the first T-shaped groove, and described lower bolster is fixed in the described first T-shaped groove by securing member.
Described Z axis flutter device 42 be positioned at described cope match-plate pattern 13 directly over, described upper plate 421 upper surfaces are provided with the second T-shaped groove 4211 and circular trough 4212, described cope match-plate pattern 13 is fixed on the second T-shaped groove 4211 of described upper plate 421 by securing member.
Described X axis groove, described Y-axis groove are U-shaped groove.
Between described oscillating plate 241 and described fixed head 242, all be tightly connected by securing member and O type circle between described upper plate 241 and described lower plate 242.
Described securing member all is positioned at the outer ring of described the first arc groove and the second deep-slotted chip breaker.
Operation principle: when hydraulic oil, when by oil circuit, entering first arc groove of oscillating plate of X/Y axle flutter device, interior oil hydraulic pressure increases by force, makes oscillating plate mid portion projection; When fluid flows out the first arc groove of oscillating plate, its interior oil hydraulic coupling is got back to ortho states, and the oscillating plate mid portion is got back to initial position; Control the pressure that enters, flows out frequency and hydraulic oil of hydraulic oil by the first high frequency valve, can realize that X/Y axle flutter device is with certain frequency and amplitude vibration, simultaneously X-axis flutter device is connected with the X-axis support plate, Y-axis flutter device is connected lower bolster and fixes with X-axis support plate, Y-axis gripper shoe respectively with the Y-axis support plate, so the die parts will be done the axial vibration of X/Y along with X-axis flutter device or Y-axis flutter device; And when the hydraulic oil warp enters the second arc groove of upper plate by oil circuit, interior oil hydraulic pressure increases by force, make upper plate mid portion projection: when fluid flows out the second arc groove of upper plate, its interior oil hydraulic coupling is got back to ortho states, and the upper plate mid portion is got back to initial position; Control the pressure that enters, flows out frequency and hydraulic oil of hydraulic oil by the second high frequency valve, can realize that Z-direction is vibrated with certain frequency and amplitude, and the punch parts are fixed on the upper plate of Z axis flutter device by securing member, therefore also will carry out periodic vibration along with Z axis flutter device, thereby realize the high frequency extrusion and vibration of punch.
The turnover oil process of the Z axis flutter device of embodiment 2 embodiment 1
Figure 19 and Figure 20 are Z axis flutter device turnover oil condition schematic diagram, system is comprised of hydraulic oil source, the second high frequency valve and Z axis flutter device, the rotation of the spool of the second high frequency valve is by driven by servomotor, the valve port area size that makes the groove circumferentially evenly offered along spool land match with window on valve pocket becomes cyclically-varying, due to the groove mutual dislocation on adjacent shoulder, thereby make the uninterrupted of turnover flutter device and the variation of direction generating period; During work, when spool goes to the position shown in Figure 19, the P-A conducting, pressure oil enters the flutter device, the flutter device upper plate protrusion that deforms: when spool goes to the position shown in Figure 20, the A-T conducting, hydraulic oil flows out flutter device, upper plate homing.
The turnover oil process of the X/Y axle flutter device of embodiment 3 embodiment 1
Figure 21 and Figure 22 are X-axis flutter device and Y-axis flutter device turnover oil condition schematic diagram, and system is comprised of hydraulic oil source, high frequency valve, X-axis flutter device and Y-axis flutter device, and the system fuel feeding is identical with Z axis flutter device.During work, when spool goes to position shown in figure, the P-A conducting, pressure oil enters X-axis flutter device and Y-axis flutter device, the flutter device oscillating plate protrusion that deforms: when spool goes to the position shown in Figure 22, and the A-T conducting, hydraulic oil flows out X-axis flutter device and Y-axis flutter device, oscillating plate homing.
The operating frequency of high frequency flutter device equals the spool rotating speed of high frequency valve and the product that often turns the break-make number of times between spool notch and valve pocket window.
The described content of this specification embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also comprises that those skilled in the art conceive the equivalent technologies means that can expect according to the present invention.
Claims (6)
1. the compound flutter cold extruding die of three axle high frequencies, it is characterized in that: comprise shaping mechanism, X-axis flutter generating mechanism, Y-axis flutter generating mechanism, Z axis flutter generating mechanism, described shaping mechanism comprises punch, die, cope match-plate pattern, the punch retainer plate, shrink ring, compacting ring, the die cushion block, the die packing ring, lower bolster, described punch is arranged in the punch retainer plate of described cope match-plate pattern, be positioned at punch under described die be arranged on shrink ring, described die with under described die cushion block upper surface contact, described die cushion block is arranged in the die packing ring, described compacting ring is enclosed within the top of described shrink ring, and described compacting ring is bolted on described lower bolster,
Described X-axis flutter generating mechanism comprises X-axis support plate, above-mentioned connecting plate, the first high frequency valve, X-axis flutter device, above-mentioned lower bolster is fixed on the X-axis support plate, described X-axis flutter device is fixed with described X-axis support plate, described connecting plate respectively, and described X-axis support plate is placed in the X axis groove arranged on described connecting plate, tremble the first oil duct of device of described X-axis is communicated with described the first high frequency valve; Described X-axis flutter device involving vibrations plate, with the fastening fixed head of oscillating plate, offer the first arc groove in the middle of described oscillating plate, described fixed head is provided with the first oil duct for the hydraulic oil turnover, and an end of described the first oil duct is communicated with described the first arc groove, the other end is communicated with described the first high frequency valve;
Described Y-axis flutter generating mechanism comprises Y-axis support plate, above-mentioned connecting plate, Y-axis flutter device, the first high frequency valve identical with above-mentioned X-axis flutter device structure, described Y-axis flutter device is fixed with described connecting plate, described Y-axis support plate respectively, and described connecting plate is placed in the Y-axis groove of described Y-axis support plate upper surface setting; The tremble oil duct of device of described Y-axis is communicated with described the first high frequency valve;
Described Z axis flutter generating mechanism comprises the second high frequency valve, Z axis flutter device, the lower plate that described Z axis flutter device comprises upper plate, is tightly connected with upper plate, upper plate and the above-mentioned cope match-plate pattern of described Z axis flutter device are fixed, described lower plate lower surface is offered the second arc groove, described lower plate is provided with the second oil duct for the hydraulic oil turnover, one end of described the second oil duct is communicated with described the second arc groove, and the other end of described the second oil duct is communicated with described the second high frequency valve;
The spool of described the first high frequency valve and described the second high frequency valve is connected with the output shaft of servomotor, and described spool land is circumferentially evenly offered the groove matched with window on valve pocket; Described the first high frequency valve is identical with the structure of described the second high frequency valve.
2. the compound flutter cold extruding die of three axle high frequency as claimed in claim 1, it is characterized in that: described X-axis support plate upper surface is provided with the first T-shaped groove, and described lower bolster is fixed in the described first T-shaped groove by securing member.
3. the compound flutter cold extruding die of three axle high frequency as claimed in claim 2, it is characterized in that: described Z axis flutter device be positioned at described cope match-plate pattern directly over, described upper plate upper surface is provided with the second T-shaped groove and circular trough, and described cope match-plate pattern is fixed on the second T-shaped groove of described upper plate by securing member.
4. the compound flutter cold extruding die of three axle high frequency as claimed in claim 3, it is characterized in that: described X axis groove, described Y-axis groove are U-shaped groove.
5. the compound flutter cold extruding die of three axle high frequency as claimed in claim 4 is characterized in that: between described oscillating plate and described fixed head, all be tightly connected by securing member and O type circle between described upper plate and described lower plate.
6. the compound flutter cold extruding die of three axle high frequency as claimed in claim 5, it is characterized in that: described securing member all is positioned at the outer ring of the first arc groove and the second deep-slotted chip breaker.
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| CN2013103737693A CN103447339A (en) | 2013-08-23 | 2013-08-23 | Triaxial high-frequency composite flutter cold extrusion die |
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| CN2013103737693A CN103447339A (en) | 2013-08-23 | 2013-08-23 | Triaxial high-frequency composite flutter cold extrusion die |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104525601A (en) * | 2014-12-16 | 2015-04-22 | 西安交通大学 | Vertical mechanical vibrating hydraulic extruder |
| CN104588428A (en) * | 2014-12-16 | 2015-05-06 | 中北大学 | Circular channel and corner based extruding and moulding mold and circular channel and corner based extruding and moulding method of magnesium alloy cup-shaped component |
| CN104841716A (en) * | 2015-05-04 | 2015-08-19 | 浙江工业大学 | Two-dimensional high-frequency fluttering cold extrusion die |
| CN104841712A (en) * | 2015-05-04 | 2015-08-19 | 浙江工业大学 | High-frequency flutter cold extruding die |
| CN104874627A (en) * | 2015-05-04 | 2015-09-02 | 浙江工业大学 | Two-dimensional high-frequency fluttering method for cold extrusion and mold thereof |
| CN105195542A (en) * | 2015-09-23 | 2015-12-30 | 浙江工业大学义乌科学技术研究院有限公司 | Torsional vibration combined cold extrusion die |
| CN110303110A (en) * | 2019-08-16 | 2019-10-08 | 徐州市特种锻压机床厂 | A kind of hydraulic forging press and forging method |
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| CN105195542A (en) * | 2015-09-23 | 2015-12-30 | 浙江工业大学义乌科学技术研究院有限公司 | Torsional vibration combined cold extrusion die |
| CN110303110A (en) * | 2019-08-16 | 2019-10-08 | 徐州市特种锻压机床厂 | A kind of hydraulic forging press and forging method |
| CN110303110B (en) * | 2019-08-16 | 2020-10-23 | 徐州市特种锻压机床厂 | Hydraulic forging press and forging method |
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Application publication date: 20131218 |