CN104763697A - Hydraulic system for underdrive bending machine - Google Patents
Hydraulic system for underdrive bending machine Download PDFInfo
- Publication number
- CN104763697A CN104763697A CN201510175087.0A CN201510175087A CN104763697A CN 104763697 A CN104763697 A CN 104763697A CN 201510175087 A CN201510175087 A CN 201510175087A CN 104763697 A CN104763697 A CN 104763697A
- Authority
- CN
- China
- Prior art keywords
- valve
- directional control
- solenoid directional
- way
- control valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic system for an underdrive bending machine. The hydraulic system comprises a main oil cylinder, an oil tank, a first auxiliary oil cylinder and a second auxiliary oil cylinder. A two-position four-way electromagnetic reversing valve, an internal gear pump and a screen filter are installed in an oil tube between a rod cavity of the main oil cylinder and the oil tank. The internal gear pump is driven by a motor to work. The two-position four-way electromagnetic reversing valve is externally connected with a one-way valve in parallel. According to the hydraulic system, a foot bar is omitted and replaced with a two-way foot switch controlling a machine tool to move up and down, the machine tool can stop and move at any position, and meanwhile the movement speed of the machine tool is increased.
Description
Technical field
The present invention relates to bender field, specifically belong to the hydraulic system of underdrive bender.
Background technique
Be ride treadle by operator during the bending of underdrive bender, treadle discharges, the just downward backhaul of lathe lower table; it can not stop in any position; lathe observes bending situation etc. to wanting temporary parking in mould or bending, and this can bring certain difficulty, must rely on braking device to realize.
Summary of the invention
The object of this invention is to provide a kind of hydraulic system of underdrive bender, remove treadle, change the two-way foot switch controlling lathe and move up and down into, lathe can stop in any position, move, and also improves the movement velocity of lathe simultaneously.
Technological scheme of the present invention is as follows:
A kind of hydraulic system of underdrive bender, include master cylinder, fuel tank, first auxiliary oil cylinder, second auxiliary oil cylinder, two-position four-way solenoid directional control valve is installed in the oil pipe between the rod chamber of master cylinder and fuel tank, crescent gear pump, screen filter, crescent gear pump drives work by motor, described two-position four-way solenoid directional control valve loong shunt has one-way valve, the oil circuit that first auxiliary oil cylinder connects is divided into three branch roads, wherein two branch roads are provided with one-way valve, and be connected to fuel tank, an other branch road is provided with two-position four-way solenoid directional control valve, two position two-way valve, two-position four-way solenoid directional control valve is parallel with between two-position four-way solenoid directional control valve and two position two-way valve, electromagnetic relief valve, the oil circuit that second auxiliary oil cylinder connects is divided into three branch roads, wherein two branch roads are provided with one-way valve, and be connected to fuel tank, three bi-bit bi-pass solenoid directional control valves are parallel with in an other branch road.
Described electromagnetic relief valve is in series with remote pressure regulating valve.
The present invention, when the release of up foot switch, requires to provide the oil circuit of pressure oil to disconnect to oil cylinder, and can not allow the pressure oil leakage in cylinder, thus makes lower table keep a certain position motionless.When foot-operated upwards foot switch, lathe continues to move upward from the position stopped.When foot-operated downward foot switch, lathe continues to move downward from the position stopped.Originally except the valve that other is not changed, only has a foot-propelled hydrovalve, a pressure regulator valve.Present needs electromagnetic relief valve, remote pressure regulating valve, three solenoid directional control valves.
Hydraulic part working principle of the present invention:
1. opening power, connect motor 4, crescent gear pump 3 works, the off-load of electromagnetic relief valve 7 dead electricity.Hydraulic oil: crescent gear pump 3 → electromagnetic relief valve 7 → oil sump tank 1.
2. depress upwards foot switch, electromagnetic relief valve 7 obtains electric, and solenoid directional control valve 5 obtains electric.In crescent gear pump 3, pressure oil enters master cylinder 12 through oil pipe, and worktable moves upward.When worktable enters fast state, hydraulic oil: crescent gear pump 3 → solenoid directional control valve 5 → master cylinder 12 cavity of resorption; Fuel tank 1 oil fills into the cavity of resorption of auxiliary oil cylinder 11 through one-way valve 10.When worktable enter at a slow speed state time, solenoid directional control valve 6 electric, hydraulic oil: crescent gear pump 3 → solenoid directional control valve 5 → master cylinder cavity of resorption 12 → solenoid directional control valve 6 → secondary cylinder cavity of resorption 11.
3. unclamp upwards foot switch in any position, electromagnetic relief valve 7 dead electricity, solenoid directional control valve 5 dead electricity, if lathe entered at a slow speed state time, solenoid directional control valve 6 also dead electricity.In crescent gear pump 3, pressure oil flows back to fuel tank through electromagnetic relief valve 7, and worktable stops at as you were.Hydraulic oil: crescent gear pump → electromagnetic relief valve → fuel tank.
4. continue to depress upwards foot switch, electromagnetic relief valve 7 electric, solenoid directional control valve 5 electric, if lathe entered at a slow speed state time, solenoid directional control valve 6 electric.In crescent gear pump, pressure oil reenters oil cylinder cavity of resorption, and worktable continues to move upward.
5. pressure is to foot switch, electromagnetic relief valve 7 dead electricity, solenoid directional control valve 5 dead electricity, solenoid directional control valve 6 dead electricity, and solenoid directional control valve 17 obtains electric, and solenoid directional control valve 8 obtains electric, and in crescent gear pump 2, pressure oil flows back to fuel tank through this 7 electromagnetic relief valve off-load.Oil in master cylinder flows back to fuel tank through solenoid directional control valve 5, electromagnetic relief valve 7 off-load.The oil of secondary cylinder is through solenoid directional control valve 8 oil sump tank 1, and worktable is backhaul downwards under the effect of deadweight.Hydraulic oil:
1) master cylinder 12 → bi-bit bi-pass selector valve 8 → fuel tank 2,
2) secondary cylinder 11 → two-position four way change valve 5 → fuel tank 2,
3) crescent gear pump 3 → electromagnetic relief valve 7 → fuel tank 2.
6. unclamp to foot switch in any position, electromagnetic relief valve 7 dead electricity, solenoid directional control valve 5 dead electricity, solenoid directional control valve 6 dead electricity, worktable stops at as you were.Hydraulic oil: crescent gear pump 2 → electromagnetic relief valve 7 → fuel tank 2.
7. continue pressure to foot switch, solenoid directional control valve 5 obtains electric, and solenoid directional control valve 17 obtains electric, and solenoid directional control valve 8 obtains electric, and worktable then continues to move downward, until extreme lower position stops.Hydraulic oil:
1) oil cylinder cavity of resorption → solenoid directional control valve 5 → fuel tank 2
→ 17 solenoid directional control valves, solenoid directional control valve 8 → fuel tank 2.
2) crescent gear pump 3 → electromagnetic relief valve 7 → fuel tank 2.
Accompanying drawing explanation
Fig. 1 is hydraulic diagram of the present invention.
Fig. 2 is control flow block diagram of the present invention.
Embodiment
See accompanying drawing, a kind of hydraulic system of underdrive bender, include master cylinder 12, fuel tank 1, first auxiliary oil cylinder 11, second auxiliary oil cylinder 18, in oil pipe between the rod chamber of master cylinder 12 and fuel tank 1, two-position four-way solenoid directional control valve 5 is installed, crescent gear pump 3, screen filter 3, crescent gear pump 3 drives work by motor, two-position four-way solenoid directional control valve 5 loong shunt has one-way valve 16, the oil circuit that first auxiliary oil cylinder 11 connects is divided into three branch roads, wherein two branch roads are provided with one-way valve 10, and be connected to fuel tank 2, an other branch road is provided with two-position four-way solenoid directional control valve 6, two position two-way valve 9, two-position four-way solenoid directional control valve 17 is parallel with between two-position four-way solenoid directional control valve and two position two-way valve, electromagnetic relief valve 7, the oil circuit that second auxiliary oil cylinder 18 connects is divided into three branch roads, wherein two branch roads are provided with one-way valve 2, and be connected to fuel tank 1, three bi-bit bi-pass solenoid directional control valves 8 are parallel with in an other branch road, electromagnetic relief valve 8 is in series with remote pressure regulating valve 15.
Claims (2)
1. the hydraulic system of a underdrive bender, it is characterized in that, include master cylinder, fuel tank, first auxiliary oil cylinder, second auxiliary oil cylinder, two-position four-way solenoid directional control valve is installed in the oil pipe between the rod chamber of master cylinder and fuel tank, crescent gear pump, screen filter, crescent gear pump drives work by motor, described two-position four-way solenoid directional control valve loong shunt has one-way valve, the oil circuit that first auxiliary oil cylinder connects is divided into three branch roads, wherein two branch roads are provided with one-way valve, and be connected to fuel tank, an other branch road is provided with two-position four-way solenoid directional control valve, two position two-way valve, two-position four-way solenoid directional control valve is parallel with between two-position four-way solenoid directional control valve and two position two-way valve, electromagnetic relief valve, the oil circuit that second auxiliary oil cylinder connects is divided into three branch roads, wherein two branch roads are provided with one-way valve, and be connected to fuel tank, three bi-bit bi-pass solenoid directional control valves are parallel with in an other branch road.
2. the hydraulic system of underdrive bender according to claim 1, is characterized in that, described electromagnetic relief valve is in series with remote pressure regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175087.0A CN104763697A (en) | 2015-04-14 | 2015-04-14 | Hydraulic system for underdrive bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510175087.0A CN104763697A (en) | 2015-04-14 | 2015-04-14 | Hydraulic system for underdrive bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104763697A true CN104763697A (en) | 2015-07-08 |
Family
ID=53645717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510175087.0A Pending CN104763697A (en) | 2015-04-14 | 2015-04-14 | Hydraulic system for underdrive bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763697A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5484182A (en) * | 1977-12-16 | 1979-07-04 | Nec Corp | Oil hydraulic pressure apparatus |
| CN102155445A (en) * | 2011-02-22 | 2011-08-17 | 山东泰丰液压股份有限公司 | Hydraulic control system with double-feedback active proportional servo cartridge valve for CNC (Computer Numerical Control) bending machine |
| CN102410272A (en) * | 2011-12-03 | 2012-04-11 | 南京埃尔法电液技术有限公司 | Electrohydraulic servo bending machine hydraulic system |
| CN102691681A (en) * | 2012-06-26 | 2012-09-26 | 重庆键英液压机电有限公司 | Novel three-point type bending machine hydraulic system with quick energy conservation |
| CN103277356A (en) * | 2013-05-27 | 2013-09-04 | 河北汉智数控机械有限公司 | Oil hydraulic system of machining equipment |
| CN103334971A (en) * | 2013-07-22 | 2013-10-02 | 邹城市博威液压机械制造有限公司 | Hydraulic control system for electric-hydraulic proportional numerical control bending machine |
| CN103850997A (en) * | 2012-11-30 | 2014-06-11 | 无锡市协新气动有限公司 | Multifunctional hydraulic system of bar material bender |
| CN104210136A (en) * | 2014-07-14 | 2014-12-17 | 上海爱葛尼机床有限公司 | Automatic pressurizing machine of bending machine |
| CN204646831U (en) * | 2015-04-14 | 2015-09-16 | 阜阳强松机械制造有限公司 | The hydraulic system of underdrive bender |
-
2015
- 2015-04-14 CN CN201510175087.0A patent/CN104763697A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5484182A (en) * | 1977-12-16 | 1979-07-04 | Nec Corp | Oil hydraulic pressure apparatus |
| CN102155445A (en) * | 2011-02-22 | 2011-08-17 | 山东泰丰液压股份有限公司 | Hydraulic control system with double-feedback active proportional servo cartridge valve for CNC (Computer Numerical Control) bending machine |
| CN102410272A (en) * | 2011-12-03 | 2012-04-11 | 南京埃尔法电液技术有限公司 | Electrohydraulic servo bending machine hydraulic system |
| CN102691681A (en) * | 2012-06-26 | 2012-09-26 | 重庆键英液压机电有限公司 | Novel three-point type bending machine hydraulic system with quick energy conservation |
| CN103850997A (en) * | 2012-11-30 | 2014-06-11 | 无锡市协新气动有限公司 | Multifunctional hydraulic system of bar material bender |
| CN103277356A (en) * | 2013-05-27 | 2013-09-04 | 河北汉智数控机械有限公司 | Oil hydraulic system of machining equipment |
| CN103334971A (en) * | 2013-07-22 | 2013-10-02 | 邹城市博威液压机械制造有限公司 | Hydraulic control system for electric-hydraulic proportional numerical control bending machine |
| CN104210136A (en) * | 2014-07-14 | 2014-12-17 | 上海爱葛尼机床有限公司 | Automatic pressurizing machine of bending machine |
| CN204646831U (en) * | 2015-04-14 | 2015-09-16 | 阜阳强松机械制造有限公司 | The hydraulic system of underdrive bender |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203892280U (en) | Electro-hydraulic proportional valve control system of combined machine tool | |
| CN104314894A (en) | Pressure relay type unloading loop for scissor lift | |
| CN104235092A (en) | Unilateral throttling synchronism loop of dual-column gantry lifting machine | |
| CN104196806A (en) | Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter | |
| CN104006018A (en) | Bending machine hydraulic synchronous system controlled by flow distributing and collecting valve | |
| CN204739017U (en) | Car lifts quick -witted hydraulic circuit | |
| CN205013408U (en) | Differential hydraulic control device is entirely cut to steel scrap | |
| CN105782154A (en) | Hydraulic machining machine, hydraulic system thereof and control method of hydraulic system | |
| CN204646831U (en) | The hydraulic system of underdrive bender | |
| CN104632734A (en) | Hydraulic control system for automobile spoke drilling machine | |
| CN204175682U (en) | A kind of stretcher leveler clamping mechanism multistage pressure regulation structure | |
| CN104763697A (en) | Hydraulic system for underdrive bending machine | |
| CN204873719U (en) | Quick -witted hydraulic control system lifts | |
| CN104019225B (en) | A kind of torque converter control system | |
| CN204657346U (en) | Automatic hydraulic motor steel-bar hoop bender | |
| CN103727373A (en) | Main drive variable-speed hydraulic lubricating system of vertical lathe | |
| CN204114099U (en) | A kind of hydraulic transmission gearbox proportional hydraulic control system for fork truck | |
| CN102661296B (en) | Hydraulic system and engineering machinery vehicle | |
| CN204628110U (en) | A kind of car lift deceleration pressure dwelling loop | |
| CN212175912U (en) | Electro-hydraulic parallel control system based on excavator walking | |
| CN104712606A (en) | Multi-direction hydraulic control system of machine tool | |
| CN104329304B (en) | A kind of stretcher leveler clamping mechanism multistage pressure controlling device | |
| CN104405705A (en) | Automatic correction hydraulic motor synchronizing circuit of two-column gantry lifting machine | |
| CN104235108A (en) | Accelerating loop of gantry lifter accelerating cylinder | |
| CN104386617A (en) | Parallel speed conversion loop of gantry lifting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
|
| RJ01 | Rejection of invention patent application after publication |