CN103042707B - Mechanical-hydraulic Hybrid-Driven Mechanical Press - Google Patents

Mechanical-hydraulic Hybrid-Driven Mechanical Press Download PDF

Info

Publication number
CN103042707B
CN103042707B CN201210551229.5A CN201210551229A CN103042707B CN 103042707 B CN103042707 B CN 103042707B CN 201210551229 A CN201210551229 A CN 201210551229A CN 103042707 B CN103042707 B CN 103042707B
Authority
CN
China
Prior art keywords
hydraulic
mechanical
driven
hydraulic cylinder
sliding block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201210551229.5A
Other languages
Chinese (zh)
Other versions
CN103042707A (en
Inventor
钱雪松
朱灯林
卞新高
梅志千
何钢
张敏
周道尹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hohai University Changzhou Campus
Original Assignee
Hohai University Changzhou Campus
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hohai University Changzhou Campus filed Critical Hohai University Changzhou Campus
Priority to CN201210551229.5A priority Critical patent/CN103042707B/en
Publication of CN103042707A publication Critical patent/CN103042707A/en
Application granted granted Critical
Publication of CN103042707B publication Critical patent/CN103042707B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of mechanical-hydraulic Hybrid-Driven Mechanical Press, comprise machine power drive system and hydraulic pressure power-driven system, two cover systems can work alone respectively, also can work simultaneously.When machine power drive system works alone, its performance is as common punching machine, and hydraulic cylinder can use as the hydraulic die cushion of standard machinery forcing press; When the hydraulic pressure power-driven system of mechanical-hydraulic Hybrid-Driven Mechanical Press works alone, the feature that hydraulic jack inertia is little can be given full play to, drive sliding block high frequency slightly to move up and down, greatly reduce punching stroke, realize high speed stamping; When machine power drive system and hydraulic pressure power-driven system work simultaneously, the slider-crank mechanism work of machine power drive systems forcing press, while top shoe drives sliding block to move downward, hydraulic pressure power-driven system can drive sliding block to produce dither by hydraulic system, realize forcing press with vibration machining working method, meet special process requirement.

Description

Mechanical-hydraulic Hybrid-Driven Mechanical Press
Technical field
The present invention relates to a kind of forcing press, be specifically related to a kind of mechanical-hydraulic Hybrid-Driven Mechanical Press, belong to electric and field of electromechanical technology.
Background technology
At present, forcing press is widely used in the processing such as metallic plate punching, stretching, pressure forming.Common forcing press has punching machine and hydraulic press, universal significance is thought punching machine.Punching machine is mainly slider-crank mechanism, mainly contains the compositions such as drive motors, reducing gear, Flywheel disc, clutch, bent axle (or eccentric wheel), connecting rod, slide block, lathe bed, guide rail, operating desk.Its basic functional principle is: motor drive deceleration mechanism flywheel driven dish rotates, when there is no operational order, throw off between Flywheel disc with bent axle and be connected, the slider-crank mechanism of bent axle (or eccentric wheel), connecting rod, slide block composition remains static, and forcing press does not produce punching press action; When forcing press obtains punching press instruction, Flywheel disc is engaged with bent axle by clutch, motor drive deceleration mechanism flywheel driven dish rotates, Flywheel disc is rotated by clutch band dynamic crankshaft, the slider-crank mechanism be made up of bent axle (or eccentric wheel), connecting rod, slide block is started working, slide block moves down, and forcing press realizes punching press action.Processing technology due to different pressure forming products requires different, to forcing press, much different performances and functional requirement can be proposed, such as, extraneous vibration in slide block folding process, frequency low-amplitude punching press near bottom dead center of slider, shaping speed planning in formed product process and control etc., for above special processing process requirement, common punching machine cannot meet, therefore, for the processing technology requirement that shaped article is different, all kinds of forcing presses that can meet different processing technology and require must be developed, or the particular pressure machine that multiple processing technology requires can be met simultaneously.
Summary of the invention
In order to meet the multiple processing technology requirement in product pressure forming process, the invention provides a kind of mechanical-hydraulic Hybrid-Driven Mechanical Press, it includes machine power simultaneously and drives and hydraulic power driving two cover drive systems, its two covers drive system can work alone respectively, also can work simultaneously.
In order to reach above object, technical scheme of the present invention is as follows:
A kind of mechanical-hydraulic Hybrid-Driven Mechanical Press, comprises machine power drive system and hydraulic pressure power-driven system;
Described machine power drive system comprises top shoe, mould height governor motion, connecting rod, eccentric rotary mechanism, mechanical power transmission mechanism, forcing press lathe bed, guide rail; Described eccentric rotary mechanism, mechanical power transmission mechanism, guide rails assembling are with it press machine tool; The top of described connecting rod has connecting rod, forms dynamic cooperation, can be formed between the two and relatively rotate between connecting rod and the eccentric shaft of eccentric rotary mechanism; The bottom of described connecting rod and the top of mould height governor motion are threaded connection, and both relatively rotate the relative movement that can realize axis direction by screw thread, regulate pressing machine die high; The bottom of described mould height governor motion is connected with top shoe, can realize circumference between the two and relatively rotate; Described top shoe is arranged on guide rail, and realizes moving up and down under the drive of connecting rod on guide rail;
Described hydraulic pressure power-driven system comprises hydraulic system, sliding block, hydraulic cylinder; Described hydraulic system comprises hydraulic pump, pressure-control valve, electro connecting pressure gauge, reversal valve, accumulator, hydraulic control one-way valve, fuel tank; The fluid of described hydraulic system, by after reversal valve, is connected respectively to the oil inlet and outlet of hydraulic cylinder cavity of resorption and the oil inlet and outlet of hydraulic cylinder epicoele, and is connected to the inside of hydraulic cylinder cavity of resorption and hydraulic cylinder epicoele; Described pressure-control valve, electro connecting pressure gauge, reversal valve, accumulator, hydraulic control one-way valve play the pressure maintaining effect of hydraulic cylinder cavity of resorption; Described reversal valve drives hydraulic cylinder to drive sliding block to move up and down on guide rail; Described hydraulic cylinder comprises cylinder body, hydraulic cylinder cavity of resorption, piston, hydraulic cylinder epicoele, end cap, piston rod; Described cylinder body and sliding block are made of one; Described piston is connected with piston rod; Described end cap is reliably arranged on the top of cylinder body by screw; Described piston rod passes from the centre bore of end cap, and is connected with the bottom of top shoe by the piston rod connecting thread on top; Described cylinder body and sliding block are arranged on guide rail; Described cylinder body and sliding block can realize moving up and down under the effect of hydraulic cylinder cavity of resorption and hydraulic cylinder epicoele internal oil pressure.
Described eccentric rotary mechanism can be bent axle, also can be eccentric wheel.
Electro connecting pressure gauge in described hydraulic system can be electro connecting pressure gauge, also can be pressure detecting components and parts.
Reversal valve in described hydraulic system can be hand-operated direction valve, servomotor driven change valve, solenoid directional control valve, electro-hydraulic reversing valve, especially also can be proportional reversing valve or servo valve.
The motor used in described machine power drive system can be common electric machine, also can be servomotor.
Described hydraulic cylinder piston rod can be connected with the bottom of top shoe by screw thread, also can be connected with the bottom of top shoe by flange.
Beneficial effect is: mechanical-hydraulic Hybrid-Driven Mechanical Press provided by the invention can meet the multiple processing technology requirement in product pressure forming process, mechanical-hydraulic Hybrid-Driven Mechanical Press provided by the invention, include machine power to drive and hydraulic power driving two cover drive systems simultaneously, its two covers drive system can work alone respectively, also can work simultaneously.When machine power drive system works alone, its performance is as common punching machine, and hydraulic cylinder can use as the hydraulic die cushion of standard machinery forcing press; The hydraulic pressure power-driven system of mechanical-hydraulic Hybrid-Driven Mechanical Press also can work alone, especially when slider-crank mechanism is in bottom dead centre, usage ratio reversal valve or servo valve in hydraulic system, on the one hand can appropriate design Sheet Metal Forming Technology curve, fully meet different Sheet Metal Forming Technology requirement, on the other hand, can the high frequency direction changing ratio of passing ratio reversal valve or servo valve, give full play to the feature that hydraulic jack inertia is little, drive sliding block high frequency low amplitude vibrations, significantly reduce punching stroke, realize high frequency punching press; The machine power drive system of mechanical-hydraulic Hybrid-Driven Mechanical Press and hydraulic pressure power-driven system can work simultaneously, when the slider-crank mechanism work of machine power drive systems forcing press, the downward punching press of top shoe simultaneously, hydraulic pressure power-driven system can drive sliding block to produce dither, meets special process requirement.
So mechanical-hydraulic Hybrid-Driven Mechanical Press provided by the invention, can meet the multiple processing technology requirement in product pressure forming process.
Accompanying drawing explanation
Fig. 1 is operating diagram of the present invention;
Fig. 2 is the enlarged diagram of hydraulic pressure power-driven system in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1 and Figure 2, a kind of mechanical-hydraulic Hybrid-Driven Mechanical Press, comprises machine power drive system and hydraulic pressure power-driven system;
Machine power drive system comprises top shoe 4, mould height governor motion 5, connecting rod 6, eccentric rotary mechanism 7, mechanical power transmission mechanism 8, forcing press lathe bed, guide rail; Described eccentric rotary mechanism 7, mechanical power transmission mechanism 8, guide rails assembling are with it press machine tool; The top of described connecting rod 6 has connecting rod 6-1, forms dynamic cooperation, can be formed between the two and relatively rotate between connecting rod 6-1 and the eccentric shaft of eccentric rotary mechanism 7; The bottom of described connecting rod 6 and the top of mould height governor motion 5 are threaded connection, and both relatively rotate the relative movement that can realize axis direction by screw thread, regulate pressing machine die high; The bottom of described mould height governor motion 5 is connected with upper cunning 4, can realize circumference between the two and relatively rotate; Described top shoe 4 is arranged on guide rail, and realizes moving up and down under the drive of connecting rod 6 on guide rail;
Described hydraulic pressure power-driven system comprises hydraulic system 1, sliding block 2, hydraulic cylinder 3; Described hydraulic system 1 comprises hydraulic pump 1-1, pressure-control valve 1-2, electro connecting pressure gauge 1-3, reversal valve 1-4, accumulator 1-5, hydraulic control one-way valve 1-6, fuel tank 1-7; The fluid of described hydraulic system 1, by after reversal valve 1-4, is connected respectively to the oil inlet and outlet of hydraulic cylinder cavity of resorption 3-2 and the oil inlet and outlet of hydraulic cylinder epicoele 3-4, and is connected to the inside of hydraulic cylinder cavity of resorption 3-2 and hydraulic cylinder epicoele 3-4; Described pressure-control valve 1-2, electro connecting pressure gauge 1-3, reversal valve 1-4, accumulator 1-5, hydraulic control one-way valve 1-6 play the pressure maintaining effect of hydraulic cylinder 3 cavity of resorption 3-2; Described reversal valve 1-4 drives hydraulic cylinder 3 to drive sliding block 2 to move up and down on guide rail; Described hydraulic cylinder (3) comprises cylinder body 3-1, hydraulic cylinder cavity of resorption 3-2, piston 3-3, hydraulic cylinder epicoele 3-4, end cap 3-6, piston rod 3-7; Described cylinder body 3-1 and sliding block 2 are made of one; Described piston 3-3 is connected with piston rod 3-7; Described end cap 3-6 is reliably arranged on the top of cylinder body 3-1 by screw 3-5; Described piston rod 3-7 passes from the centre bore of end cap 3-6, and is connected with the bottom of top shoe 4 by the piston rod connecting thread 3-8 on top; Described cylinder body 3-1 and sliding block 2 are arranged on guide rail; Described cylinder body 3-1 and sliding block 2 can realize moving up and down under the effect of hydraulic cylinder cavity of resorption 3-2 and hydraulic cylinder epicoele 3-4 internal oil pressure.
The machine power drive system of described mechanical-hydraulic Hybrid-Driven Mechanical Press can work alone, and its performance is as common punching machine, and hydraulic cylinder 3 can use as the hydraulic die cushion of standard machinery forcing press, the hydraulic pressure power-driven system of described mechanical-hydraulic Hybrid-Driven Mechanical Press can work alone, especially when the mechanism that connecting rod 6 and eccentric rotary mechanism 7 form is in bottom dead centre, if when the reversal valve 1-4 used in hydraulic system 1 is for proportional reversing valve or servo valve, on the one hand can appropriate design Sheet Metal Forming Technology curve, fully meet different Sheet Metal Forming Technology requirement, on the other hand, can the high frequency direction changing ratio of passing ratio reversal valve or servo valve, give full play to the feature that hydraulic jack inertia is little, drive sliding block high frequency low amplitude vibrations, significantly reduce punching stroke, realize high frequency punching press, the machine power drive system of described mechanical-hydraulic Hybrid-Driven Mechanical Press and hydraulic pressure power-driven system, can work simultaneously, when the 4 downward punching press of machine power drive systems top shoe, hydraulic pressure power-driven system can drive sliding block 2 to produce dither, meets special process requirement.
Preferably, described eccentric rotary mechanism 7 can be a kind of eccentric rotary mechanism in bent axle, eccentric wheel.
Preferably, the electro connecting pressure gauge 1-3 in described hydraulic system 1 can be electro connecting pressure gauge, also can be a kind of pressure detecting components and parts of pressure switch, pressure sensor.
Preferably, reversal valve 1-4 in described hydraulic system 1 can be a kind of switch hydraulicdirectional control valve in hand-operated direction valve, servomotor driven change valve, solenoid directional control valve, electro-hydraulic reversing valve, especially can be the continuous controlled hydraulic reversal valve of one in proportional reversing valve or servo valve.
Preferably, the motor used in described machine power drive system can be a kind of motor in common electric machine, servomotor.
Preferably, described hydraulic cylinder piston rod 3-7 can be connected with the bottom of top shoe 4 by the piston rod connecting thread 3-8 on top, be connected with the bottom of top shoe 4 by flange in a kind of connected mode.
Main operational principle of the present invention is as follows:
Mechanical-hydraulic Hybrid-Driven Mechanical Press of the present invention, include machine power and drive and hydraulic power driving two cover drive systems, two cover drive systems can work alone respectively, also can work simultaneously.When the machine power drive system of mechanical-hydraulic Hybrid-Driven Mechanical Press can work alone, its performance is as common punching machine, motor drive deceleration mechanism flywheel driven dish rotates, when there is no operational order, throw off between Flywheel disc with eccentric rotary mechanism 7 and be connected, the slider-crank mechanism that eccentric rotary mechanism 7, connecting rod 6, top shoe 4 form remains static, and forcing press does not produce punching press action, when forcing press obtains punching press instruction, Flywheel disc is engaged with eccentric rotary mechanism 7 by clutch, mechanical power transmission mechanism 8 drives eccentric rotary mechanism 7 to rotate by clutch, by eccentric rotary mechanism 7, connecting rod 6, the slider-crank mechanism that top shoe 4 forms is started working, top shoe 4 drives sliding block 2 to move down by hydraulic cylinder 3, forcing press realizes punching press action, now in hydraulic system 1 by pressure-control valve 1-2, electro connecting pressure gauge 1-3, reversal valve 1-4, accumulator 1-5, the pressure dwelling loop that hydraulic control one-way valve 1-6 forms plays the pressure maintaining effect of hydraulic cylinder 3 cavity of resorption 3-2, hydraulic cylinder 3 can use as hydraulic die cushion, when the hydraulic pressure power-driven system of mechanical-hydraulic Hybrid-Driven Mechanical Press works alone, especially when the mechanism that connecting rod 6 and eccentric rotary mechanism 7 form makes sliding block 2 be in lower dead point position, if when the reversal valve 1-4 used in hydraulic system 1 is for proportional reversing valve or servo valve, on the one hand can appropriate design Sheet Metal Forming Technology curve, fully meet different Sheet Metal Forming Technology requirement, on the other hand, can the high frequency direction changing ratio of passing ratio reversal valve or servo valve, give full play to the feature that hydraulic jack 3 inertia is little, drive sliding block 2 high frequency low amplitude vibrations, significantly reduce punching stroke, realize high frequency punching press, when the machine power drive system of mechanical-hydraulic Hybrid-Driven Mechanical Press and hydraulic pressure power-driven system work simultaneously, machine power drive system drives top shoe 4 to drive sliding block 2 punching press downwards by mechanical power transmission mechanism 8, hydraulic pressure power-driven system can drive sliding block 2 to produce high frequency up-down vibration by hydraulic system 1 simultaneously, realize forcing press with the downward press work mode of vibration, meet special process requirement.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (4)

1. a mechanical-hydraulic Hybrid-Driven Mechanical Press, is characterized in that: comprise machine power drive system and hydraulic pressure power-driven system;
Described machine power drive system comprises top shoe (4), mould height governor motion (5), connecting rod (6), eccentric rotary mechanism (7), mechanical power transmission mechanism (8), forcing press lathe bed, guide rail; Described eccentric rotary mechanism (7), mechanical power transmission mechanism (8), guide rails assembling are with it press machine tool; The top of described connecting rod (6) has connecting rod (6-1), forms dynamic cooperation, can be formed between the two and relatively rotate between connecting rod (6-1) and the eccentric shaft of eccentric rotary mechanism (7); The bottom of described connecting rod (6) and the top of mould height governor motion (5) are threaded connection, and both relatively rotate the relative movement that can realize axis direction by screw thread, regulate pressing machine die high; The bottom of described mould height governor motion (5) is connected with top shoe (4), can realize circumference between the two and relatively rotate; Described top shoe (4) is arranged on guide rail, and realizes moving up and down under the drive of connecting rod (6) on guide rail;
Described hydraulic pressure power-driven system comprises hydraulic system (1), sliding block (2), hydraulic cylinder (3); Described hydraulic system (1) comprises hydraulic pump (1-1), pressure-control valve (1-2), electro connecting pressure gauge (1-3), reversal valve (1-4), accumulator (1-5), hydraulic control one-way valve (1-6), fuel tank (1-7); The fluid of described hydraulic system (1) is by after reversal valve (1-4), be connected respectively to the oil inlet and outlet of hydraulic cylinder cavity of resorption (3-2) and the oil inlet and outlet of hydraulic cylinder epicoele (3-4), and be connected to the inside of hydraulic cylinder cavity of resorption (3-2) and hydraulic cylinder epicoele (3-4); Described pressure-control valve (1-2), electro connecting pressure gauge (1-3), reversal valve (1-4), accumulator (1-5), hydraulic control one-way valve (1-6) play the pressure maintaining effect of hydraulic cylinder (3) cavity of resorption (3-2); Described reversal valve (1-4) drives hydraulic cylinder (3) to drive sliding block (2) to move up and down on guide rail; Described hydraulic cylinder (3) comprises cylinder body (3-1), hydraulic cylinder cavity of resorption (3-2), piston (3-3), hydraulic cylinder epicoele (3-4), end cap (3-6), piston rod (3-7); Described cylinder body (3-1) and sliding block (2) are made of one; Described piston (3-3) is connected with piston rod (3-7); Described end cap (3-6) is reliably arranged on the top of cylinder body (3-1) by screw (3-5); Described piston rod (3-7) passes from the centre bore of end cap (3-6), and is connected with the bottom of top shoe (4) by the piston rod connecting thread (3-8) on top; Described cylinder body (3-1) and sliding block (2) are arranged on guide rail; Described cylinder body (3-1) and sliding block (2) can move up and down under the effect of hydraulic cylinder cavity of resorption (3-2) and hydraulic cylinder epicoele (3-4) internal oil pressure in realization.
2. mechanical-hydraulic Hybrid-Driven Mechanical Press according to claim 1, is characterized in that: described eccentric rotary mechanism (7) can be bent axle, also can be eccentric wheel.
3. mechanical-hydraulic Hybrid-Driven Mechanical Press according to claim 1, is characterized in that: the reversal valve (1-4) in described hydraulic system (1) can be the one in hand-operated direction valve, servomotor driven change valve, solenoid directional control valve, electro-hydraulic reversing valve.
4. mechanical-hydraulic Hybrid-Driven Mechanical Press according to claim 1, is characterized in that: the motor used in described machine power drive system can be common electric machine, also can be servomotor.
CN201210551229.5A 2012-12-18 2012-12-18 Mechanical-hydraulic Hybrid-Driven Mechanical Press Expired - Fee Related CN103042707B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210551229.5A CN103042707B (en) 2012-12-18 2012-12-18 Mechanical-hydraulic Hybrid-Driven Mechanical Press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210551229.5A CN103042707B (en) 2012-12-18 2012-12-18 Mechanical-hydraulic Hybrid-Driven Mechanical Press

Publications (2)

Publication Number Publication Date
CN103042707A CN103042707A (en) 2013-04-17
CN103042707B true CN103042707B (en) 2015-08-12

Family

ID=48055668

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210551229.5A Expired - Fee Related CN103042707B (en) 2012-12-18 2012-12-18 Mechanical-hydraulic Hybrid-Driven Mechanical Press

Country Status (1)

Country Link
CN (1) CN103042707B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552266A (en) * 2013-10-14 2014-02-05 苏州大学 High-frequency small-load mechanical hydraulic compound transmission press machine
CN104019067A (en) * 2014-06-13 2014-09-03 上海中远川崎重工钢结构有限公司 Hydraulic control system of steel seal processing device
CN105365248B (en) * 2015-11-25 2017-08-01 浙江大学舟山海洋研究中心 Machine liquid association type large travel high-speed punch press drive system
CN111674074B (en) * 2020-06-17 2022-01-11 山东大学 Electro-hydraulic servo low-frequency vibration equipment and machining process thereof
CN112743892B (en) * 2020-12-23 2021-08-27 无锡市欧凯电子有限公司 Node righting point selection stamping control method and press

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926033A (en) * 1974-01-28 1975-12-16 Renault Toggle-joint press
CN101175585A (en) * 2005-05-16 2008-05-07 会田工程技术有限公司 Die cushion device for press machine
CN201645883U (en) * 2009-12-22 2010-11-24 武汉景宏工贸有限公司 Proportional supercharging control circuit used for hydraulic system of press
CN101927578A (en) * 2010-08-24 2010-12-29 东莞市得力仕机械科技有限公司 Servo electrohydraulic composite pressure method and press machine thereof
CN202045906U (en) * 2011-02-26 2011-11-23 荣成金辰机械制造有限公司 Hydraulic cushion for slider of press machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107573A (en) * 1975-03-18 1976-09-24 Kawasaki Yuko Kk Seikeipuresu
JP2534944B2 (en) * 1991-09-24 1996-09-18 アイダエンジニアリング株式会社 Press machine
JP2000326095A (en) * 1999-05-19 2000-11-28 Yamada Dobby Co Ltd Press
KR100559432B1 (en) * 2004-01-08 2006-03-10 현대자동차주식회사 Mechanical press device
JP4756678B2 (en) * 2004-11-16 2011-08-24 アイダエンジニアリング株式会社 Die cushion device for press machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926033A (en) * 1974-01-28 1975-12-16 Renault Toggle-joint press
CN101175585A (en) * 2005-05-16 2008-05-07 会田工程技术有限公司 Die cushion device for press machine
CN201645883U (en) * 2009-12-22 2010-11-24 武汉景宏工贸有限公司 Proportional supercharging control circuit used for hydraulic system of press
CN101927578A (en) * 2010-08-24 2010-12-29 东莞市得力仕机械科技有限公司 Servo electrohydraulic composite pressure method and press machine thereof
CN202045906U (en) * 2011-02-26 2011-11-23 荣成金辰机械制造有限公司 Hydraulic cushion for slider of press machine

Also Published As

Publication number Publication date
CN103042707A (en) 2013-04-17

Similar Documents

Publication Publication Date Title
CN103042707B (en) Mechanical-hydraulic Hybrid-Driven Mechanical Press
CN103057141B (en) A kind of toggle link hydraulic press
CN103963334B (en) A kind of energy-saving type servo hydraulic machine of the mechanical-hydraulic compound with elbow-bar mechanism
CN101480851B (en) Press
CN104712616A (en) Internal circulation high-speed hydraulic system, hydraulic platform and hydraulic platform component
CN104029408B (en) The symmetric double toggle link reinforcement high-speed blanking press that a kind of drum type brake linear electric motors drive
CN2910544Y (en) Hydraulic punch press
CN201493365U (en) hydraulic punching machine
CN106925704A (en) Cold forging punch press
CN204054209U (en) Numerical control press
CN105365248A (en) Mechanical-hydraulic combined driving system of large-stroke high-speed punch press
CN205219783U (en) Big stroke high velocity ram machine drive arrangement of formula is united to machine liquid
CN205202234U (en) Bent axle toggle link formula intelligence servo pressure machine
CN101941297A (en) Transmission device of mechanical elbow rod type servo press
CN104129087B (en) A kind of square linear electric motors down-push type double swing-bar reinforcement high-speed blanking press
CN202071396U (en) Sealed height regulating device of precise punching hydraulic machine
US20080202115A1 (en) Machine and integrated hybrid drive with regenerative hydraulic force assist
CN203994772U (en) Multi-functional mechanical formula punch device
CN201346856Y (en) Press machine
CN202427878U (en) Automatic adjusting device for opening dimension of double-column hydraulic press
CN202781869U (en) Numerical control turret punch press
CN205226271U (en) Punch press drive assembly
CN204603171U (en) A kind of servounit forcing press Dual Drive elbow-bar mechanism
CN203779887U (en) Power head of servo motor suitable for large and medium swiveling head press machine
CN102815006A (en) Mechanical fast-forward hydraulic press machine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150812

Termination date: 20171218