CN201669568U - Hydraulic energy-accumulation pressure maintaining system for fixture - Google Patents

Hydraulic energy-accumulation pressure maintaining system for fixture Download PDF

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Publication number
CN201669568U
CN201669568U CN2010201967828U CN201020196782U CN201669568U CN 201669568 U CN201669568 U CN 201669568U CN 2010201967828 U CN2010201967828 U CN 2010201967828U CN 201020196782 U CN201020196782 U CN 201020196782U CN 201669568 U CN201669568 U CN 201669568U
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CN
China
Prior art keywords
control valve
hydraulic
valve
hydraulic pump
communicated
Prior art date
Application number
CN2010201967828U
Other languages
Chinese (zh)
Inventor
魏秋月
沈建冬
Original Assignee
西安邮电学院
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Priority to CN2010201967828U priority Critical patent/CN201669568U/en
Application granted granted Critical
Publication of CN201669568U publication Critical patent/CN201669568U/en

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Abstract

The utility model discloses a hydraulic energy-accumulation pressure maintaining system for fixture, including a hydraulic pump and an oil tank, wherein the export of the hydraulic pump is connected to port 0of a first control valve through an one-way valve, port A of the first control valve is communicated to a rodless cavity of the hydraulic cylinder, the rod cavity of the hydraulic cylinder is connected to port B of the first control valve, the port P of the control valve is communicated to the oil tank, an over-flow valve is provided between the hydraulic pump export and the oil tank, an energy accumulator is provided on the pipeline between the one-way valve export and the port 0 of the control valve, a pressure relay is mounted at the export of the energy accumulator, and a second control valve is provided between the oil tank and the over-flow valve liquid control flow-port. The utility model has the following characteristics: rational design, long dwell time, adjustable dwell time, small system power loss, high system stability, wide applicability and high intelligent degree.

Description

Anchor clamps hydraulic energy-accumulating pressure-retaining system
Technical field
The utility model belongs to the mechanical processing machine technical field, relates to a kind of hydraulic energy-accumulating pressure dwelling loop, is specifically related to a kind of anchor clamps hydraulic energy-accumulating pressure-retaining system.
Background technology
Hydraulic drive and control are the output (power, displacement or speed etc.) that realizes various mechanical quantity with liquid (oil, high water base fluid are pressed oil, synthetic fluid) as medium.Characteristics such as it is compared with simple machine driving, Electrified Transmission and Pneumatic Transmission, and it is big to have a transmitted power, and structure is little, response is fast, thereby be widely used in various plant equipment and accurate automatic control system.
The China NC Machine manufacturing industry once had the high speed development stages in the eighties in 20th century, many machine tool plants realize to the transition of numerical control product from traditional product, and many manufacturer production economical NC machine tools are arranged.From " 95 " the national later on numerical control device market that starts from expanding domestic demand, especially after 1999, country drops into a large amount of funds for technical innovation to national defense industry and crucial civilian industry department, make one prosperity of numerical control device manufacturing market, conventional jig adopts machinery and hydraulic pressure to step up mode usually, it mainly is that the employing check valve is the hydraulic circuit pressurize to adopt hydraulic pressure to step up mode, and uses the check valve pressurize to have problems such as dwell time weak point, pressure stability difference.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of anchor clamps hydraulic energy-accumulating pressure-retaining system is provided, and it is reasonable in design, dwell time is long, and the dwell time can be regulated, and the system power loss is little, stability of a system height, applied widely, intelligent degree height.
For achieving the above object, the technical solution adopted in the utility model is: a kind of anchor clamps hydraulic energy-accumulating pressure-retaining system, comprise hydraulic pump and fuel tank, described hydraulic pump outlet is communicated with the O mouth of control valve one through check valve, the A mouth of described control valve one is communicated with the rodless cavity of hydraulic cylinder, the rod chamber of described hydraulic cylinder is communicated with the B mouth of control valve one, the P mouth of described control valve one is communicated with fuel tank, be provided with overflow valve between described hydraulic pump outlet and the fuel tank, described hydraulic cylinder knock-pin end is equipped with anchor clamps, it is characterized in that: the pipeline between the O mouth of described check valve outlet and control valve one is provided with accumulator, described accumulator exit is equipped with pressure switch, is provided with control valve two between described overflow valve hydraulic control head piece and the fuel tank.
Described hydraulic pump is unidirectional quantitative hydraulic pump.
Described control valve one is the 3-position 4-way solenoid directional control valve, and described control valve two is a two-position two-way solenoid valve.
The utility model compared with prior art has the following advantages:
(1) these anchor clamps are reasonable in design with the hydraulic energy-accumulating pressure-retaining system, and the dwell time length of system depends between the break-make regulatory region of accumulator volume and pressure switch, thereby its dwell time is long and the dwell time can be regulated.
(2) these anchor clamps are with being provided with control valve between the hydraulic control head piece of hydraulic energy-accumulating pressure-retaining system overflow valve and the fuel tank, and the hydraulic oil of hydraulic pump directly flows back to fuel tank when control valve is opened, and the system power loss is little, stability of a system height.
(2) these anchor clamps are not only applicable to jig with the hydraulic energy-accumulating pressure-retaining system, are applicable to that also other has the machine of pressurize requirement, and its scope of application is very extensive.
(4) these anchor clamps adopt the mechanical-electrical-hydraulic integration design with the hydraulic energy-accumulating pressure-retaining system, and its intelligent degree is very high, need not manual adjustment during work.
Below by drawings and Examples, the utility model is described in further detail.
Description of drawings
Fig. 1 is a hydraulic control schematic diagram of the present utility model.
Description of reference numerals:
The 1-hydraulic pump; The 2-check valve; The 3-pressure switch;
The 4-accumulator; 5-control valve one; The 6-hydraulic cylinder;
7-control valve two; The 8-overflow valve; The 9-anchor clamps.
The specific embodiment
A kind of anchor clamps hydraulic energy-accumulating pressure-retaining system as shown in Figure 1, comprise hydraulic pump 1 and fuel tank, described hydraulic pump 1 outlet is communicated with the O mouth of control valve 1 through check valve 2, the A mouth of described control valve 1 is communicated with the rodless cavity of hydraulic cylinder 6, the rod chamber of described hydraulic cylinder 6 is communicated with the B mouth of control valve 1, the P mouth of described control valve 1 is communicated with fuel tank, described hydraulic cylinder 6 knock-pin ends are equipped with anchor clamps 9, be provided with overflow valve 8 between described hydraulic pump 1 outlet and the fuel tank, pipeline between the O mouth of described check valve 2 outlets and control valve 1 is provided with accumulator 4, described accumulator 4 exits are equipped with pressure switch 3, are provided with control valve 27 between described overflow valve 8 hydraulic control head pieces and the fuel tank.
As shown in Figure 1, described hydraulic pump 1 is unidirectional quantitative hydraulic pump.
As shown in Figure 1, described control valve 1 is the 3-position 4-way solenoid directional control valve, and described control valve 27 is a two-position two-way solenoid valve.
The utility model anchor clamps with the course of work of hydraulic energy-accumulating pressure-retaining system are:
As shown in Figure 1, when the position, a left side of control valve 1 is inserted, hydraulic cylinder 6 rodless cavity pressure are greater than its rod chamber pressure, and piston moves right, after hydraulic cylinder 6 promotes anchor clamps 9 workpiece pressings, hydraulic pump 1 works on input pressure is raise, when pressure was increased to pressure switch 3 settings, pressure switch 3 sent signal and makes two-position two-way solenoid valve 7 energisings, and hydraulic pump 1 is promptly by control valve 27 off-loads, this moment, check valve 2 was closed automatically, and 6 of hydraulic cylinders are by accumulator 4 pressurizes.When cylinder was pressed deficiency, pressure switch 3 resetted hydraulic pump 1 is reworked.The length of this system's dwell time depends between the break-make regulatory region of the capacity of accumulator 4 and pressure switch 3.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.

Claims (3)

1. anchor clamps hydraulic energy-accumulating pressure-retaining system, comprise hydraulic pump (1) and fuel tank, described hydraulic pump (1) outlet is communicated with through check valve (2) 0 mouthful with control valve one (5), the A mouth of described control valve one (5) is communicated with the rodless cavity of hydraulic cylinder (6), the rod chamber of described hydraulic cylinder (6) is communicated with the B mouth of control valve one (5), the P mouth of described control valve one (5) is communicated with fuel tank, be provided with overflow valve (8) between described hydraulic pump (1) outlet and the fuel tank, described hydraulic cylinder (6) knock-pin end is equipped with anchor clamps (9), it is characterized in that: the pipeline between 0 mouthful of described check valve (2) outlet and control valve one (5) is provided with accumulator (4), described accumulator (4) exit is equipped with pressure switch (3), is provided with control valve two (7) between described overflow valve (8) hydraulic control head piece and the fuel tank.
2. according to the described anchor clamps of claim 1 hydraulic energy-accumulating pressure-retaining system, it is characterized in that: described hydraulic pump (1) is unidirectional quantitative hydraulic pump.
3. according to the described anchor clamps of claim 1 hydraulic energy-accumulating pressure-retaining system, it is characterized in that: described control valve one (5) is the 3-position 4-way solenoid directional control valve, and described control valve two (7) is a two-position two-way solenoid valve.
CN2010201967828U 2010-05-19 2010-05-19 Hydraulic energy-accumulation pressure maintaining system for fixture CN201669568U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201967828U CN201669568U (en) 2010-05-19 2010-05-19 Hydraulic energy-accumulation pressure maintaining system for fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201967828U CN201669568U (en) 2010-05-19 2010-05-19 Hydraulic energy-accumulation pressure maintaining system for fixture

Publications (1)

Publication Number Publication Date
CN201669568U true CN201669568U (en) 2010-12-15

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CN2010201967828U CN201669568U (en) 2010-05-19 2010-05-19 Hydraulic energy-accumulation pressure maintaining system for fixture

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102943426A (en) * 2012-10-11 2013-02-27 徐州万邦道路工程装备服务股份公司 Paver driving cab hydraulic lift control device
WO2013166875A1 (en) * 2012-05-09 2013-11-14 Li Zhennan Supporting auxiliary equipment for forming three-way part
CN103603834A (en) * 2013-11-26 2014-02-26 常德中联重科液压有限公司 Automatic pressure maintaining device
CN105508313A (en) * 2015-02-28 2016-04-20 北京航空航天大学 Hatch door transient actuation system based on energy accumulator flow compensation
CN105545135A (en) * 2015-02-28 2016-05-04 北京航空航天大学 New principle cabin door transient actuating system based on constant displacement motor
CN105545833A (en) * 2015-12-17 2016-05-04 宁波海天精工股份有限公司 Energy-saving machine tool hydraulic power unit and transmission method thereof
CN105673593A (en) * 2016-03-03 2016-06-15 芜湖日升重型机床有限公司 Two-time feeding combined machine tool power sliding platform hydraulic system
CN105805063A (en) * 2015-02-28 2016-07-27 北京航空航天大学 New-principle cabin door transient actuating system based on variable displacement motor
CN106907358A (en) * 2017-04-28 2017-06-30 宁波奉化精瑞钢球有限公司 Termination of pumping pressure-keeping mechanism and the steel ball processing grinding machine with the termination of pumping pressure-keeping mechanism
CN106989073A (en) * 2017-04-28 2017-07-28 防城港市海河堤管理站 Electrohydraulic controlling mechanism
CN107013506A (en) * 2017-04-28 2017-08-04 防城港市海河堤管理站 Punching mechanism
CN107269602A (en) * 2017-04-28 2017-10-20 防城港市海河堤管理站 Electrohydraulic controlling mechanism with returning buffering function
CN108580833A (en) * 2018-04-03 2018-09-28 广东鸿图南通压铸有限公司 A kind of control device and control method of die casting high vacuum valve
CN109396907A (en) * 2018-11-05 2019-03-01 刘剑 Hydraulic expansion device

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013166875A1 (en) * 2012-05-09 2013-11-14 Li Zhennan Supporting auxiliary equipment for forming three-way part
CN102943426A (en) * 2012-10-11 2013-02-27 徐州万邦道路工程装备服务股份公司 Paver driving cab hydraulic lift control device
CN103603834A (en) * 2013-11-26 2014-02-26 常德中联重科液压有限公司 Automatic pressure maintaining device
CN103603834B (en) * 2013-11-26 2016-02-17 常德中联重科液压有限公司 Automatic pressure maintaining device
CN105805063B (en) * 2015-02-28 2019-05-21 北京航空航天大学 New principle hatch door transient state actuating system based on variable displacement motor
CN105508313A (en) * 2015-02-28 2016-04-20 北京航空航天大学 Hatch door transient actuation system based on energy accumulator flow compensation
CN105545135A (en) * 2015-02-28 2016-05-04 北京航空航天大学 New principle cabin door transient actuating system based on constant displacement motor
CN105805063A (en) * 2015-02-28 2016-07-27 北京航空航天大学 New-principle cabin door transient actuating system based on variable displacement motor
CN105545833A (en) * 2015-12-17 2016-05-04 宁波海天精工股份有限公司 Energy-saving machine tool hydraulic power unit and transmission method thereof
CN105673593A (en) * 2016-03-03 2016-06-15 芜湖日升重型机床有限公司 Two-time feeding combined machine tool power sliding platform hydraulic system
CN106907358A (en) * 2017-04-28 2017-06-30 宁波奉化精瑞钢球有限公司 Termination of pumping pressure-keeping mechanism and the steel ball processing grinding machine with the termination of pumping pressure-keeping mechanism
CN107013506A (en) * 2017-04-28 2017-08-04 防城港市海河堤管理站 Punching mechanism
CN107269602A (en) * 2017-04-28 2017-10-20 防城港市海河堤管理站 Electrohydraulic controlling mechanism with returning buffering function
CN106907358B (en) * 2017-04-28 2018-06-26 宁波奉化精瑞钢球有限公司 Termination of pumping pressure-keeping mechanism and the steel ball processing grinding machine with the termination of pumping pressure-keeping mechanism
CN106989073B (en) * 2017-04-28 2019-08-23 陈悦雯 Electrohydraulic controlling mechanism
CN106989073A (en) * 2017-04-28 2017-07-28 防城港市海河堤管理站 Electrohydraulic controlling mechanism
CN107013506B (en) * 2017-04-28 2019-08-23 陈悦雯 Punching mechanism
CN108580833A (en) * 2018-04-03 2018-09-28 广东鸿图南通压铸有限公司 A kind of control device and control method of die casting high vacuum valve
CN109396907A (en) * 2018-11-05 2019-03-01 刘剑 Hydraulic expansion device

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101215

Termination date: 20110519