CN104525601A - Vertical mechanical vibrating hydraulic extruder - Google Patents
Vertical mechanical vibrating hydraulic extruder Download PDFInfo
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- CN104525601A CN104525601A CN201410782145.1A CN201410782145A CN104525601A CN 104525601 A CN104525601 A CN 104525601A CN 201410782145 A CN201410782145 A CN 201410782145A CN 104525601 A CN104525601 A CN 104525601A
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- hydraulic cylinder
- workbench
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- slide rail
- hydraulic
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Abstract
The invention discloses a vertical mechanical vibrating hydraulic extruder, which comprises four pillars, wherein the two ends of the four pillars are respectively connected with an upper cross beam and a base, a first hydraulic cylinder is fixed on the upper cross beam, the end part of a piston rod of the first hydraulic cylinder is matched with a first sliding rail by a first slide block, a second hydraulic cylinder is fixed at the lower part of the first slide block, a mold is connected to the lower part of the second hydraulic cylinder, a vibrating mechanism is fixed in a base and connected with the bottom of a workbench, a clamping mechanism is arranged at the upper part of the workbench, a second slide block connected with the workbench is matched with a second sliding rail, the second sliding rail is connected to the base, the clamping mechanism clamps workpieces, and the vibrating mechanism drives the workbench to vibrate. According to the invention, axial feeding is separated from a vibrating process, therefore, the extruder is easy to control; the structure of the hydraulic cylinder is simplified, and the seal requirements of the hydraulic cylinder are reduced; and the extruder is compact in overall structure, and more stable and reliable in the extrusion process.
Description
Technical field
The invention belongs to mechanical-moulded equipment press technologies field, be specifically related to a kind of vertical mechanical vibrating hydraulic extruder.
Background technology
Cold extrusion shaped is a kind of precise plastic bulk forming technology.Cold extrusion refers to puts into mould or clamp system by metal blank in the cold state, under powerful pressure and certain speed effect, makes workpiece blank shaping in mold cavity, thus obtains the extrusion of required size, mechanical property.Cold extrusion processing controls metal flow by mould, thus a large amount of transfers realizing metal volume carry out forming part.Cold extrusion shapedly nowadays obtain applying comparatively widely in the industrial departments such as securing member, machinery, instrument, electrical equipment, light industry, aerospace, boats and ships, military project, become one of indispensable important manufacturing process in plastic deformation bulk forming technology.But traditional direct extrusion technique requires high to mould.Because blank during cold extrusion makes resistance of deformation enlarge markedly by three-dimensional compressive stress in a mold, the stress suffered by mould is large more than general stamping die.The part plasticity obtained and impact flexibility are deteriorated, and the residual stress of part causes greatly the reduction of part deformation and corrosion resistance.And being directly extrudedly difficult to controlled working precision, percent defective is high.In order to overcome the variety of problems in cold extrusion shaped process, foreign scholar proposes vibration-extrusion method.This process superposes a vibration on the forward travel of routine.Shaping active force can be significantly reduced by vibration processes.Vibration-extrusion technique has the advantages that high, the shaping load of shaping efficiency is little, die life is long.In order to realize this technological method for processing, some factories of China have carried out some developments to vibrating hydraulic extruder, but mostly are Horizontal vibration extruder, take up an area comparatively large and processing centering along with the use of lathe also can be affected.Centering difference will cause axial forming force to increase, and shaping workpiece dimensional accuracy is difficult to ensure.And domestic and international vibration extruder mostly now is pure hydraulic press, rely on servo vibration cylinder to complete the function of mould feeding and vibration-extrusion simultaneously.Its vibration feed of extruder of this pure hydraulic pressure is completed by magnetic valve, and control accuracy is lower and there is certain delay.Because hydraulic press adopts unified pumping plant to carry out hydraulic pressure supply, this makes the speed of hydraulic cylinder axial feed have an impact to vibration control, there is the shortcoming vibrated and can not control separately.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of vertical mechanical vibrating hydraulic extruder, axial feed and vibration processes are separated, convenient control; Simplify the structure of hydraulic cylinder, reduce the seal request of hydraulic cylinder; Compact overall structure, extrusion process is more reliable and more stable.
To achieve these goals, the technical solution used in the present invention is:
A kind of vertical mechanical vibrating hydraulic extruder, comprise four root posts 4, four root post 4 two ends are connected with entablature 3 and base 13 respectively, first hydraulic cylinder 1 is fixed on entablature 3, first piston bar 2 end of the first hydraulic cylinder 1 is connected with the top of the first slide block 6, the side of the first slide block 6 coordinates with the first slide rail 9, first slide rail 9 is fixed on column fixed cover 5, column 4 is installed in column fixed cover 5, second hydraulic cylinder 7 is fixed on the bottom of the first slide block 6, mould 8 is connected to the bottom of the second hydraulic cylinder 7, it is inner that vibrating mechanism 12 is fixed on base 13, and be connected with the bottom of workbench 11, clamp system 10 is installed on workbench 11 top, workbench 11 side is connected with the second slide block 38, second slide block 38 coordinates with the second slide rail 37, second slide rail 37 is connected on base 13.
Described vibrating mechanism 12 comprises two servomotors 14, two servomotors 14 are fixed on base 13 respectively by motor fixing seat 15, the output shaft of servomotor 14 is connected with small pulley 21, small pulley 21 is connected with large belt wheel 19 by belt 16, large belt wheel 19 is arranged on bent axle 22, and bent axle 22 is installed on vibration holder 17, and one end of two connecting rods 18 is enclosed within bent axle 22, the other end of connecting rod 18 is linked together by bearing pin 20, and the bottom of workbench 11 is connected on bearing pin 20.
Described clamp system 10 comprises the dynamic voussoir 25 in two first, left and right, the bottom of the first dynamic voussoir 25 is connected with the tension piston rod 26 of tension cylinder 27, tension cylinder 27 is fixed on workbench 11, two the first outer inclined-planes moving the dynamic voussoir 24 in respectively with two second relative, interior inclined-plane of voussoir 25 coordinate, two second inner concaves moving voussoir 24 relative are connected with four fixtures 23, workpiece is accompanied between four fixtures 23, two second dynamic voussoirs 24 are connected on two grip slides 29, be connected on clamping slide rail 28 bottom two grip slides 29, clamping slide rail 28 is fixed on workbench 11, jacking block 30 is connected with below the middle part of clamping slide rail 28, jacking block 30 is fixed on workbench 11.
The second described hydraulic cylinder 7 comprises the second piston rod 33, second piston rod 33 is sealed in the second hydraulic cylinder 31 inside by piston seal cover 32, hydraulic cylinder sealing ring 34, mould retainer plate 35 is fixed on hydraulic cylinder sealing ring 34, push rod 36 is threaded with the second piston rod 33, push rod 36 is for withstanding workpiece, nitrogen cylinder 39 is installed on the upper end of the second hydraulic cylinder 31 inside, and nitrogen cylinder 39 piston-rod lower end connects barrier film 40.
Between the first described slide rail 9 and the first slide block 6, grating scale displacement transducer is installed, for controlling the first hydraulic cylinder 1, second hydraulic cylinder 7 and servomotor 14 after the signal feedback gathered.
Two described servomotors 14 work asynchronously, and regulate servomotor rotating speed to control the vibration frequency of workbench 11.
The present invention has the following advantages:
One, the vibration processes that two servomotors 14 drive vibrating mechanism 12 to realize in extrusion process is adopted.Compared with hydraulic extrusion press, axial feed and vibration processes are separated by this mode of vibration, convenient control.Utilizing frame for movement to realize vibration makes size Control more accurate, and not by the impact of hydraulic system.Vibration frequency and amplitude is changed by changing crank structure.
Two, the second hydraulic cylinder 7 is installed on slide block 6 inside, and the second hydraulic cylinder 7 carries out pressurize again according to the regulator solution pressure pressure that needs to come of workpiece material flowing in the course of the work.The operating path achieving push rod 36 matches with the operating path of vibrating mechanism 12, withstands workpiece with this.Fuselage length is shortened compared to Horizontal vibration extruder.Push rod 36 no longer through the first hydraulic cylinder 1, simplifies the structure of hydraulic cylinder 1, reduces the seal request of hydraulic cylinder 1.
Three, push rod 36 front end can need design shape according to shaping.When workpiece needs shaping internal thread, push rod is designed to external screw thread shape, and is installed on hollow workpiece inside, and in extrusion process, material can carry out flowing thus shaping internal thread according to push rod shape.When workpiece is without the need to shaped inner shape, push rod 36 withstands on workpiece axle head, plays and withstands workpiece and the effect limiting workpiece material axial flow.
Four, the voussoir clamping mode of clamp system 10 employing, fixture 23 is changed by workpiece size, clamping by straining 27 tensions, making convenient mounting and clamping firm.Coordinate the jacking block 30 being installed on bottom that extrusion process can be made more reliable and more stable.
Five, the second hydraulic cylinder 7 is provided with nitrogen cylinder 39 and barrier film 40.The two may be used for buffering second hydraulic cylinder 7 vibration in the course of the work.Play the effects such as storage power, elimination impact, seepage compensation, the urgent energy, transmission and maintenance pressure.Can realize avoiding pipeline parts to damage, the extension device life-span, reduce idle cost, stable hydraulic systematic function, reduce energy loss and reduce the several functions such as fluid heating.
Six, vertical mechanical vibrating hydraulic extruder adopts vertical fuselage, compact conformation.Fuselage centering significantly improves compared with horizontal extruder, and there will not be and to produce the phenomenon that fuselage sinks to affecting centering along with the use of lathe.
Accompanying drawing explanation
Fig. 1 is the half sectional view of integral body of the present invention.
Fig. 2 is the front view of vibrating mechanism 12.
Fig. 3 is the top view of vibrating mechanism 12.
Fig. 4 is the sectional view of clamp system 10.
Fig. 5 is the sectional view of the second hydraulic cylinder 7.
Fig. 6 is the working curve of the first hydraulic cylinder 1, second hydraulic cylinder 7 and workbench 11.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
With reference to Fig. 1, a kind of vertical mechanical vibrating hydraulic extruder, comprise four root posts 4, four root post 4 two ends are connected with base 13 with entablature 3 respectively, first hydraulic cylinder 1 is secured by bolts on entablature 3, first piston bar 2 end of the first hydraulic cylinder 1 is connected with the top of the first slide block 6, the side of the first slide block 6 coordinates with the first slide rail 9, first slide rail 9 is fixed on column fixed cover 5, column 4 is installed in column fixed cover 5, second hydraulic cylinder 7 is fixed on the bottom of the first slide block 6, mould 8 is connected to the bottom of the second hydraulic cylinder 7, it is inner that vibrating mechanism 12 is fixed on base 13, and be connected with the bottom of workbench 11, workbench 11 carries out the weight of punching to save workbench 1/3rd, clamp system 10 is installed on workbench 11 top, workbench 11 side is connected with the second slide block 38, second slide block 38 coordinates with the second slide rail 37, second slide rail 37 is connected on base 13.
With reference to Fig. 2 and Fig. 3, described vibrating mechanism 12 comprises two servomotors 14, two servomotors 14 are fixed on base 13 respectively by motor fixing seat 15, the output shaft of servomotor 14 is connected with small pulley 21, small pulley 21 is connected with large belt wheel 19 by belt 16, large belt wheel 19 is arranged on bent axle 22, bent axle 22 is installed on vibration holder 17, one end of connecting rod 18 is enclosed within bent axle 22, the other end of two connecting rods 18 is linked together by bearing pin 20, and the bottom of workbench 11 is connected on bearing pin 20.
With reference to Fig. 4, described clamp system 10 comprises the dynamic voussoir 25 in two first, left and right, the bottom of the first dynamic voussoir 25 is connected with the tension piston rod 26 of tension cylinder 27, tension cylinder 27 is fixed on workbench 11, two the first outer inclined-planes moving the dynamic voussoir 24 in respectively with two second relative, interior inclined-plane of voussoir 25 coordinate, two second inner concaves moving voussoir 24 relative are connected with four fixtures 23, workpiece is accompanied between four fixtures 23, fixture 23 can carry out corresponding replacing according to workpiece size, two second dynamic voussoirs 24 are connected on two grip slides 29, be connected on clamping slide rail 28 bottom two grip slides 29, clamping slide rail 28 is fixed on workbench 11, jacking block 30 is connected with below the middle part of clamping slide rail 28, jacking block 30 is fixed on workbench 11.
With reference to Fig. 5, the second described hydraulic cylinder 7 comprises the second piston rod 33, second piston rod 33 is sealed in the second hydraulic cylinder 31 inside by piston seal cover 32, hydraulic cylinder sealing ring 34, mould retainer plate 35 is fixed on hydraulic cylinder sealing ring 34, push rod 36 is threaded with the second piston rod 33, push rod 36 is for withstanding workpiece, end also can be made into external screw thread shape for shaping internal screw workpiece, nitrogen cylinder 39 is installed on the upper end of the second hydraulic cylinder 31 inside, and nitrogen cylinder 39 piston-rod lower end connects barrier film 40.
Between the first described slide rail 9 and the first slide block 6, grating scale displacement transducer is installed, for controlling the first hydraulic cylinder 1, second hydraulic cylinder 7 and servomotor 14 after the signal feedback gathered.
Two described servomotors 14 work asynchronously, and regulate servomotor rotating speed to control the vibration frequency of workbench 11.
Operation principle of the present invention is:
When starting working, workpiece is by clamp system 10 clamping and positioning, first hydraulic cylinder 1 is started working, first piston bar 2 drives the first slide block 6 to be fed into work initial position along the first slide rail 9 from top dead centre, gather displacement signal by the grating scale displacement transducer be installed between the first slide block 6 and the first slide rail 9 in feeding process, the signal of collection is for controlling the action of the first hydraulic cylinder 1; Second hydraulic cylinder 7 is started working, and push rod 36 stretches out and withstands workpiece under the effect of the second piston rod 33; Carry out according to clamping force required in Workpiece shaping process the hydraulic pressure numerical value that the second hydraulic cylinder 7 is set, and carry out pressurize in forming process afterwards; Two servomotors 14 are started working simultaneously, are with dynamic crankshaft 22 and connecting rod 18 to move by belt 16, thus drive workbench 11 to move up and down, and realize the function of vibration; First hydraulic cylinder 1 carries out feeding simultaneously, and mechanism has worked in coordination with vibration-extrusion with mechanical oscillation.
In forming process, the vibration of the first hydraulic cylinder 1 and the second hydraulic cylinder 7 and workbench 11 three meets the working curve shown in Fig. 6, with reference to Fig. 6, within the t1 time, the first hydraulic cylinder 1 carries out feeding downwards, and workbench 11 moves upward under the effect of vibrating mechanism 12, second hydraulic cylinder 7 carries out pressurize, second piston rod 33 is synchronized with the movement along with workpiece and workbench 11, plays the effect withstanding workpiece, and mould 8 pairs of workpiece carry out extruded, within the t1-t2 time, first hydraulic cylinder 1 feed-disabling, workbench 11 is at the moved downward of vibrating mechanism 12, workpiece and the second piston rod 33 also move downward thereupon, workpiece portion break away from moulds 8, release portion stress, and provide space for entering of lubricating oil, a work period is formed in the t2 time, realize once vibrating, after first hydraulic cylinder 1 and the second hydraulic cylinder 7 and workbench 11 three by the rule repeating motion in this cycle until work pieces process completes, by regulating the frequency in the adjustable extrusion process of servomotor 14 rotating speed, the amount of feeding is controlled by regulating the hydraulic pressure value of the first hydraulic cylinder 1.
After vibration-extrusion terminates, first two servomotors 14 quit work, and the first hydraulic cylinder 1 starts backhaul, and first piston bar 2 drives the first slide block 6 to turn back to work initial position along the first slide rail 9.After second hydraulic cylinder 7 backhaul, the first slide block 6 gets back to top dead centre under the first hydraulic cylinder 1 acts on, and clamp system 10 unclamps, and work pieces process is complete can be taken out.
Claims (6)
1. a vertical mechanical vibrating hydraulic extruder, comprise four root posts (4), it is characterized in that: four root posts (4) two ends are connected with entablature (3) and base (13) respectively, first hydraulic cylinder (1) is fixed on entablature (3), first piston bar (2) end of the first hydraulic cylinder (1) is connected with the top of the first slide block (6), the side of the first slide block (6) coordinates with the first slide rail (9), first slide rail (9) is fixed on column fixed cover (5), column (4) is installed in column fixed cover (5), second hydraulic cylinder (7) is fixed on the bottom of the first slide block (6), mould (8) is connected to the bottom of the second hydraulic cylinder (7), it is inner that vibrating mechanism (12) is fixed on base (13), and be connected with the bottom of workbench (11), clamp system (10) is installed on workbench (11) top, workbench (11) side is connected with the second slide block (38), second slide block (38) coordinates with the second slide rail (37), second slide rail (37) is connected on base (13).
2. a kind of vertical mechanical vibrating hydraulic extruder according to claims 1, it is characterized in that: described vibrating mechanism (12) comprises two servomotors (14), two servomotors (14) are fixed on base (13) respectively by motor fixing seat (15), the output shaft of servomotor (14) is connected with small pulley (21), small pulley (21) is connected with large belt wheel (19) by belt (16), large belt wheel (19) is arranged on bent axle (22), bent axle (22) is installed in vibration holder (17), one end of two connecting rods (18) is enclosed within bent axle (22), the other end of connecting rod (18) is linked together by bearing pin (20), the bottom of workbench (11) is connected on bearing pin (20).
3. a kind of vertical mechanical vibrating hydraulic extruder according to claims 1, it is characterized in that: described clamp system (10) comprises the dynamic voussoir (25) in two first, left and right, the bottom of the first dynamic voussoir (25) is connected with the tension piston rod (26) of tension cylinder (27), tension cylinder (27) is fixed on workbench (11), two the first outer inclined-planes moving the dynamic voussoir (24) in respectively with two second relative, interior inclined-plane of voussoir (25) coordinate, two second inner concaves moving voussoir (24) relative are connected with four fixtures (23), workpiece is accompanied between four fixtures (23), two second dynamic voussoirs (24) are connected on two grip slides (29), two grip slide (29) bottoms are connected in clamping slide rail (28), clamping slide rail (28) is fixed on workbench (11), jacking block (30) is connected with below the middle part of clamping slide rail (28), jacking block (30) is fixed on workbench (11).
4. a kind of vertical mechanical vibrating hydraulic extruder according to claims 1, it is characterized in that: described the second hydraulic cylinder (7) comprises the second piston rod (33), second piston rod (33) is by piston seal cover (32), it is inner that hydraulic cylinder sealing ring (34) is sealed in the second hydraulic cylinder (31), mould retainer plate (35) is fixed on hydraulic cylinder sealing ring (34), push rod (36) is threaded with the second piston rod (33), push rod (36) is for withstanding workpiece, nitrogen cylinder (39) is installed on the inner upper end of the second hydraulic cylinder (31), nitrogen cylinder (39) piston-rod lower end connects barrier film (40).
5. a kind of vertical mechanical vibrating hydraulic extruder according to claims 1, it is characterized in that: between described the first slide rail (9) and the first slide block (6), grating scale displacement transducer is installed, for controlling the first hydraulic cylinder (1), the second hydraulic cylinder (7) and servomotor (14) after the signal feedback gathered.
6. a kind of vertical mechanical vibrating hydraulic extruder according to claim 2, is characterized in that: two described servomotor (14) synchronous workings, regulate servomotor rotating speed to control the vibration frequency of workbench (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782145.1A CN104525601B (en) | 2014-12-16 | 2014-12-16 | A kind of vertical mechanical vibrating hydraulic extruder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782145.1A CN104525601B (en) | 2014-12-16 | 2014-12-16 | A kind of vertical mechanical vibrating hydraulic extruder |
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| Publication Number | Publication Date |
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| CN104525601A true CN104525601A (en) | 2015-04-22 |
| CN104525601B CN104525601B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410782145.1A Active CN104525601B (en) | 2014-12-16 | 2014-12-16 | A kind of vertical mechanical vibrating hydraulic extruder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568469A (en) * | 2017-03-08 | 2018-09-25 | 金华职业技术学院 | A kind of cold extrusion method of bevel gear |
| CN108941230A (en) * | 2018-09-21 | 2018-12-07 | 广东兴发铝业（河南）有限公司 | A kind of intelligent aluminum section extruder |
| CN109317572A (en) * | 2018-10-09 | 2019-02-12 | 合肥合锻智能制造股份有限公司 | Cold conditions FM amplitude modulation axial direction shaping hydraulic machine production line |
| CN114749501A (en) * | 2022-03-11 | 2022-07-15 | 山东泰丰钢业有限公司 | Ultrasonic cold extrusion device and extrusion process for bimetal composite material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6471516A (en) * | 1987-09-07 | 1989-03-16 | Kieserling & Albrecht | Drawing machine |
| CN102380517A (en) * | 2011-10-19 | 2012-03-21 | 浙江工业大学 | Multifunctional vibration extrusion die based on electro-hydraulic servo driving |
| CN102397908A (en) * | 2011-11-29 | 2012-04-04 | 浙江工业大学 | High-frequency flutter cold extruding die |
| CN102581054A (en) * | 2012-02-29 | 2012-07-18 | 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 |
-
2014
- 2014-12-16 CN CN201410782145.1A patent/CN104525601B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471516A (en) * | 1987-09-07 | 1989-03-16 | Kieserling & Albrecht | Drawing machine |
| CN102380517A (en) * | 2011-10-19 | 2012-03-21 | 浙江工业大学 | Multifunctional vibration extrusion die based on electro-hydraulic servo driving |
| CN102397908A (en) * | 2011-11-29 | 2012-04-04 | 浙江工业大学 | High-frequency flutter cold extruding die |
| CN102581054A (en) * | 2012-02-29 | 2012-07-18 | 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568469A (en) * | 2017-03-08 | 2018-09-25 | 金华职业技术学院 | A kind of cold extrusion method of bevel gear |
| CN108941230A (en) * | 2018-09-21 | 2018-12-07 | 广东兴发铝业（河南）有限公司 | A kind of intelligent aluminum section extruder |
| CN109317572A (en) * | 2018-10-09 | 2019-02-12 | 合肥合锻智能制造股份有限公司 | Cold conditions FM amplitude modulation axial direction shaping hydraulic machine production line |
| CN109317572B (en) * | 2018-10-09 | 2020-05-15 | 合肥合锻智能制造股份有限公司 | Cold-state frequency modulation amplitude modulation axial forming hydraulic press production line |
| CN114749501A (en) * | 2022-03-11 | 2022-07-15 | 山东泰丰钢业有限公司 | Ultrasonic cold extrusion device and extrusion process for bimetal composite material |
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| CN104525601B (en) | 2016-05-25 |
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