CN209444636U - A kind of elaborate servo pump control hydraulic system - Google Patents
A kind of elaborate servo pump control hydraulic system Download PDFInfo
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- CN209444636U CN209444636U CN201920084110.9U CN201920084110U CN209444636U CN 209444636 U CN209444636 U CN 209444636U CN 201920084110 U CN201920084110 U CN 201920084110U CN 209444636 U CN209444636 U CN 209444636U
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Abstract
The utility model relates to a kind of elaborate servo pump control hydraulic systems, quick primary and secondary cylinder including driving sliding block, the outlet of gear pump is connected with the P of solenoid directional control valve one mouth, the A mouth of solenoid directional control valve one is connected by hydraulic control one-way valve with master cylinder cavity of resorption hydraulic fluid port, the hydraulic control mouth of hydraulic control one-way valve is connected with the B of solenoid directional control valve one mouth, the B mouth of solenoid directional control valve one is connected by sequence valve with master cylinder epicoele hydraulic fluid port, and the outlet of sequence valve is connected with the entrance of check valve, and the outlet of check valve is connected with the entrance of sequence valve；Master cylinder epicoele implementation of port is connected by prefill valve with top tank, and the hydraulic control mouth of prefill valve is connected with the A of solenoid directional control valve one mouth；The B mouth of solenoid directional control valve one is connected with the P of solenoid directional control valve three mouth, and the B mouth of solenoid directional control valve three is connected with sub- cylinder hydraulic fluid port；For solenoid directional control valve first is that Median Function is the three-position four-way electromagnetic directional valve of K-type, solenoid directional control valve three is two four-way electromagnetic reversing valves.The system's operating mode is flexible, and sliding block descends speed fast fastly, high production efficiency.
Description
Technical field
The utility model relates to a kind of machine tool hydraulic system, in particular to a kind of elaborate servo pump control hydraulic system belongs to
Machine tool hydraulic control technology field.
Background technique
Hydraulic press is the equipment for carrying out pressure processing using hydraulic transmission technology, can be extensive in addition to pressure and speed
In the range of outside electrodeless adjustment, pressure needed for can also exporting whole power at an arbitrary position or keeping, thus and mechanical press
It compares, is more suitably applied to accurate press fitting of sheet metal bending, flange, fine, the cold extrusion of metal parts and part etc..At present
The hydraulic class punching machine provided in the market generally uses threephase asynchronous driving variable displacement with constant power pump as power source, also there is portion
Man, subsidiary factory begins to use servo motor driving gear pump as main power source.For meet improve working efficiency requirement, sliding block to
Lower motion process should have fast lower and work into two kinds of speed, generally use quick primary and secondary cylinder driving sliding block, small using sub- cylinder volume,
Under speed is able to sliding block fastly.Work speed and opening speed can be adjusted according to the technological requirements, and the movement frequency is basic
It is required that 25~30 beats/min.
Traditional hydraulic press has following defects that 1. are pumped using threephase asynchronous driving variable displacement with constant power in speed
In adjusting not enough rapidly, the conversion of the especially speed of service is more stiff, and impact is big, and it is usually higher in addition to run noise.2. hydraulic
System is complex, and the time that investigation problem needs to spend is longer, and maintenance is inconvenient.
Utility model content
The primary and foremost purpose of the utility model is, overcomes problems of the prior art, provides a kind of elaborate servo pump
Hydraulic system, flexible operation mode are controlled, sliding block descends speed fast fastly, high production efficiency.
In order to achieve the above object, a kind of elaborate servo pump control hydraulic system of the utility model, including the fast of driving sliding block
The inferior part of the cylinder block of fast primary and secondary cylinder and the gear pump P1 driven by servo motor M1, the quick primary and secondary cylinder are equipped with master cylinder cavity of resorption hydraulic fluid port
The cylinder body top of 1d, the quick primary and secondary cylinder are equipped with master cylinder epicoele hydraulic fluid port 1b and master cylinder epicoele implementation of port 1c, the quick primary and secondary
Sub- cylinder hydraulic fluid port 5c is equipped at the top of the sub- cylinder piston rod of cylinder；The entrance of gear pump P1 is connected with lower fuel tank, the outlet of gear pump P1 with
The P mouth of solenoid directional control valve one is connected, and the T mouth of solenoid directional control valve one is connected with lower fuel tank, the A mouth and hydraulic control list of solenoid directional control valve one
It is connected to the entrance of valve CF2, the outlet of hydraulic control one-way valve CF2 is connected with the master cylinder cavity of resorption hydraulic fluid port 1d of quick primary and secondary cylinder, hydraulic control list
It is connected to the hydraulic control mouth of valve CF2 with the B of solenoid directional control valve one mouth, the B mouth of solenoid directional control valve one is by sequence valve F1 and quickly sub
The master cylinder epicoele hydraulic fluid port 1b of female cylinder is connected, and the outlet of sequence valve F1 is connected with the entrance of check valve D1, the outlet of check valve D1 and
The entrance of sequence valve F1 is connected；The master cylinder epicoele implementation of port 1c of quick primary and secondary cylinder is connected by prefill valve CF1 with top tank, filling liquid
The hydraulic control mouth of valve CF1 is connected with the A of solenoid directional control valve one mouth；P of the B mouth of solenoid directional control valve one also with three YV3 of solenoid directional control valve
Mouth is connected, and the T mouth of three YV3 of solenoid directional control valve is connected with lower fuel tank, the son of the B mouth and quick primary and secondary cylinder of three YV3 of solenoid directional control valve
Cylinder hydraulic fluid port 5c is connected；Solenoid directional control valve is first is that Median Function is the three-position four-way electromagnetic directional valve of K-type, three YV3 of solenoid directional control valve
For two four-way electromagnetic reversing valves.
Compared with the existing technology, the utility model achieves following the utility model has the advantages that 1. can realize sliding block fast downlink: servo
Motor M1 is obtained with 2000r/min driving gear pump P1 work, the right valve YV1 and three YV3 of solenoid directional control valve of solenoid directional control valve one
Electricity, pressure oil enters the P mouth of three YV3 of solenoid directional control valve from the B mouth of solenoid directional control valve one, then from the B of three YV3 of solenoid directional control valve
Mouth enters the sub- cylinder hydraulic fluid port 5c of quick primary and secondary cylinder, and the volume of factor cylinder is smaller, and pressure oil drives sub- cylinder piston rod 5 to stretch out；Simultaneously
The pressure oil of the B mouth output of solenoid directional control valve one makes the hydraulic control mouth of hydraulic control one-way valve CF2 build pressure, and hydraulic control one-way valve CF2 is opened, made
The oil liquid of master cylinder cavity of resorption returns to lower fuel tank, to realize the fast downlink movement of sliding block；During under fast, pass through prefill valve CF1
By master cylinder epicoele implementation of port 1c to master cylinder epicoele repairing.2. the deceleration downlink and pressurization of sliding block can be realized: sliding block runs to change
When speed point position is usually the position that sliding block has just touched workpiece, three YV3 power loss of solenoid directional control valve, sub- cylinder passes through solenoid directional control valve
The T mouth of three YV3 is to tank drainback；The B mouth oil pressure of solenoid directional control valve one increases, when the setting pressure of pressure rise to sequence valve F1
When, sequence valve F1 is opened, and pressure oil enters master cylinder epicoele from master cylinder epicoele hydraulic fluid port 1b, is kept sliding block lower slowly and is pressurizeed, realizes compacting
Or the work such as punching.3. release: servo motor M1 stops working, all equal power loss of solenoid directional control valve, and master cylinder epicoele passes through unidirectional
The downward tank drainback of the T of valve D1 and solenoid directional control valve one mouth, sub- cylinder pass through the downward tank drainback of T mouth of three YV3 of solenoid directional control valve,
The equal off-load of the pressure of master cylinder epicoele and sub- cylinder.4. when sliding block backhaul: servo motor M1 drives gear with maximum (top) speed 2000r/min
P1 work is pumped, the left valve YV2 of solenoid directional control valve one obtains electric, and the oil liquid of pump discharge is through the A of solenoid directional control valve one mouth and fluid-control one-way
Valve CF2 enters master cylinder cavity of resorption hydraulic fluid port 1d, to oil cylinder cavity of resorption pump oil；The pressure oil that one A mouthfuls of solenoid directional control valve makes the liquid of prefill valve CF1
Control mouth builds pressure, opens prefill valve CF1, and the oil liquid of master cylinder epicoele returns top tank through prefill valve CF1；The oil liquid of sub- cylinder passes through electromagnetism
The downward tank drainback of T mouth of three YV3 of reversal valve, to realize the backhaul action of sliding block.5. the utility model uses servo motor
M1 drive gear pump P1, make full use of the high responsiveness energy of servo motor, in conjunction with man-machine interface can be separately provided sliding block it is fast under, work
Into the speed of service in, backhaul each stage, it is able to satisfy special processing technology requirement, stepless speed regulation can be met in speed adjusting,
8-10 decibel are reduced in terms of noise, and with peripheral displacement sensor ining conjunction with can precision control the position of sliding block, and low noise.⑥
The movement frequency of lathe can by the revolving speed of servo motor adjust be adjusted, lathe operating pressure also by pump discharge pressure into
Row is adjusted.7. master cylinder pressure is using control is pumped rather than pressure regulator valve is relied on to adjust, flexible operation mode and control precision height.8. hydraulic
System is more compact, facilitates investigation problem, Quick overhaul.
The outlet of hydraulic control one-way valve CF2 passes through two F2 of pressure regulator valve and lower fuel tank as a further improvement of the utility model,
It is connected.On the one hand two F2 of pressure regulator valve is used for the pressure protection of master cylinder cavity of resorption, prevent the cylinder phenomenon that rises, on the other hand provide master cylinder
The support force of cavity of resorption.
The entrance and electromagnetic switch of the outlet of gear pump P1 and three F3 of pressure regulator valve as a further improvement of the utility model,
The B mouth of four YV4 of valve is connected, and the outlet of three F3 of T mouth and pressure regulator valve of four YV4 of solenoid directional control valve is connected with lower fuel tank, and electromagnetism changes
It is two four-way electromagnetic reversing valves to four YV4 of valve.Four YV4 of solenoid directional control valve obtains electric, and system builds pressure, and three F3 of pressure regulator valve is for setting
Determine the maximum pressure value of system, protects hydraulic action；When system release, not only gear pump P1 stops, and four YV4 of solenoid directional control valve
B mouth communicated with T mouthfuls, pressure oil directly returns lower fuel tank.
The servo motor M1 of gear pump P1 and each solenoid directional control valve are controlled by as a further improvement of the utility model,
Control system, the control system include PLC controller and servo controller SDR, the port C+ of PLC controller and COM port
It is connected, servo start button SB1 is connected between 000 port of PLC controller and the port C-, servo stop button SB2 series connection
Between 001 port and the port C- of PLC controller；The port CN3-T/A1 of servo controller and the port C- of PLC controller
It is connected, the port CN3-T/C1 of servo controller SDR is connected with 002 port of PLC controller；The coil of intermediate relay KA01
It is connected between 100.00 ports of PLC controller and 24V-, the normally open contact of intermediate relay KA01 is connected to SERVO CONTROL
Between the port DI1 of device and COM port；The port OUT1 of PLC controller is connected with the port AI1 of servo controller, PLC control
The port OUT2 of device is connected with the port AI2 of servo controller, the port COM1 and the port COM2 of PLC controller and SERVO CONTROL
The port GND1 of device is connected；Alarm reset button SB10 is connected between the port DI4 of servo controller and COM port；Servo
The signal wire of the mating encoder PG of motor M1 is connected with the feedback signal port of servo controller SDR, detection servopump P1 output
The pump intake pressure sensor P0 of pressure is connected with the port AI3 of servo controller, monitors the sliding block magnetic scale S1 connection of slide position
In the port IN1 of PLC controller.The power end of servo controller SDR is equipped with filter EM1, closes circuit breaker Q F1, presses and watch
Start button SB1 is taken, PLC controller is devoted oneself to work, and it is electric that PLC controller obtains the coil of intermediate relay KA01, then intermediate
The normally open contact of relay KA01 is closed, and the port DI1 of servo controller receives enable signal, servo controller SDR investment
Work.When the voltage between the port CN3-T/C1 of servo controller SDR and the port CN3-T/A1 jumps, then to PLC
002 port of controller issues alarm signal, and PLC controller makes the coil losing electricity of intermediate relay KA01, normally open contact
It disconnects, servo controller is made to stop working.Alarm reset button SB10 is pressed, the port DI4 of servo controller receives reset
Signal, alarm release, pressing servo start button SB1 again can just resume work.The port OUT1 and the end COM1 of PLC controller
Voltage between mouthful is 0~10V, the uninterrupted of corresponding servopump, when the voltage raising of the port PLC controller OUT1, servo
The port AI1 of controller SDR receives flow and increases signal, and servo motor M1 controls servopump P1 and increases flow output；Conversely,
Then reduce flow.Voltage between the port OUT2 and the port COM2 of PLC controller is 0~10V, and the pressure of corresponding servopump is high
Low, when the voltage of the port PLC controller OUT2 increases, the port AI2 of servo controller SDR receives pressure rise signal, watches
It takes motor M1 control servopump P1 and improves oil pressure；Conversely, then reducing oil pressure.The letter of servo controller SDR reception sliding block magnetic scale S1
Number, the accurate control of slide position can be realized by closing also operation control.Servo stop button SB2 is pressed, then PLC controller makes
The coil losing electricity of intermediate relay KA01 is obtained, normally open contact disconnects, and servo controller is made to stop working.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments, and attached drawing only provides ginseng
It examines and illustrates to use, it is non-to limit the utility model.
Fig. 1 is the hydraulic schematic diagram of the utility model elaborate servo pump control hydraulic system.
Fig. 2 is the electric control theory figure of the utility model elaborate servo pump control hydraulic system.
Fig. 3 is the main view of quick primary and secondary cylinder in the utility model elaborate servo pump control hydraulic system.
Fig. 4 is the left view of Fig. 3.
Fig. 5 be Fig. 3 in along the sectional view of A-A.
In figure: 1. cylinder bodies；1a. cylinder body boss；1b. master cylinder epicoele hydraulic fluid port；1c. master cylinder epicoele implementation of port；1d. master cylinder cavity of resorption
Hydraulic fluid port；2. cylinder mouth guide sleeve；3. cylinder body gland；4. plunger；4a. plunger upper section；4b. plunger middle section；4c. plunger lower section；4c1. column
Fill in seal section；4d. plunger stop nut；5. sub- cylinder piston rod；5a. cylinder piston rod boss；5b. cylinder oilhole；5c. cylinder oil
Mouthful；6. cylinder sleeve；6a. cylinder sleeve flange；7. plunger Adjusting bolt Adjusting screw；8. adjusting screw rod；8a. screw rod projection seat；8b. screw locknut；
8c. lock-screw；8d. door；9. screw rod gland；P1. gear pump；M1. servo motor；YV1/YV2. solenoid directional control valve one；
YV3. solenoid directional control valve three；YV4. solenoid directional control valve four；CF1. prefill valve；CF2. hydraulic control one-way valve；D1. check valve；F1. sequence
Valve；F2. pressure regulator valve two；F3. pressure regulator valve three；QF1. breaker；EM1. filter；SDR. servo controller；SB1. servo starts
Button；SB2. servo stop button；SB10. alarm reset button；KA01. intermediate relay；PG. encoder；R. braking resistor；
P0. pump intake pressure sensor；S1. sliding block magnetic scale.
Specific embodiment
As shown in Figure 1, the utility model elaborate servo pump control hydraulic system include drive sliding block quick primary and secondary cylinder and by
The inferior part of the cylinder block of the gear pump P1 of servo motor M1 driving, quick primary and secondary cylinder are equipped with master cylinder cavity of resorption hydraulic fluid port 1d, quick primary and secondary cylinder
Cylinder body top is equipped with master cylinder epicoele hydraulic fluid port 1b and master cylinder epicoele implementation of port 1c, is equipped with son at the top of the sub- cylinder piston rod of quick primary and secondary cylinder
Cylinder hydraulic fluid port 5c.
The entrance of gear pump P1 is connected with lower fuel tank, and the outlet of gear pump P1 is connected with the P of solenoid directional control valve one mouth, electromagnetism
The T mouth of reversal valve one is connected with lower fuel tank, and the A mouth of solenoid directional control valve one is connected with the entrance of hydraulic control one-way valve CF2, fluid-control one-way
The outlet of valve CF2 is connected with the master cylinder cavity of resorption hydraulic fluid port 1d of quick primary and secondary cylinder, the hydraulic control mouth and solenoid directional control valve of hydraulic control one-way valve CF2
One B mouth is connected, and the B mouth of solenoid directional control valve one is connected by sequence valve F1 with the master cylinder epicoele hydraulic fluid port 1b of quick primary and secondary cylinder, suitable
The outlet of sequence valve F1 is connected with the entrance of check valve D1, and the outlet of check valve D1 is connected with the entrance of sequence valve F1；Quick primary and secondary
The master cylinder epicoele implementation of port 1c of cylinder is connected by prefill valve CF1 with top tank, the hydraulic control mouth and solenoid directional control valve one of prefill valve CF1
A mouth be connected；The B mouth of solenoid directional control valve one is also connected with the P mouth of three YV3 of solenoid directional control valve, the T mouth of three YV3 of solenoid directional control valve
It is connected with lower fuel tank, the B mouth of three YV3 of solenoid directional control valve is connected with the sub- cylinder hydraulic fluid port 5c of quick primary and secondary cylinder；Solenoid directional control valve first is that
Median Function is the three-position four-way electromagnetic directional valve of K-type, and three YV3 of solenoid directional control valve is two four-way electromagnetic reversing valves.
The outlet of hydraulic control one-way valve CF2 is connected by two F2 of pressure regulator valve with lower fuel tank, on the one hand two F2 of pressure regulator valve is used to lead
The pressure protection of cylinder cavity of resorption prevents the cylinder phenomenon that rises, on the other hand provides the support force of master cylinder cavity of resorption.
The outlet of gear pump P1 is connected with the B mouth of four YV4 of the entrance of three F3 of pressure regulator valve and solenoid directional control valve, solenoid directional control valve
The outlet of three F3 of T mouth and pressure regulator valve of four YV4 is connected with lower fuel tank, and four YV4 of solenoid directional control valve is two four-way electromagnetic commutations
Valve.Four YV4 of solenoid directional control valve obtains electric, and system builds pressure, and three F3 of pressure regulator valve is used to set the maximum pressure value of system, protects hydraulic
Effect；When system release, not only gear pump P1 stops, and the B mouth of four YV4 of solenoid directional control valve is communicated with T mouthfuls, and pressure oil directly returns
Lower fuel tank.
The process of the HYDRAULIC CONTROL SYSTEM sliding block fast downlink are as follows: four YV4 of solenoid directional control valve obtains electric, hydraulic pressure system construction in a systematic way pressure,
Servo motor M1 is with 2000r/min driving gear pump P1 work, three YV3 of right valve YV1 and solenoid directional control valve of solenoid directional control valve one
It is electric, pressure oil from the B mouth of solenoid directional control valve one enter three YV3 of solenoid directional control valve P mouth, then from solenoid directional control valve three
The B mouth of YV3 enters the sub- cylinder hydraulic fluid port 5c of quick primary and secondary cylinder, and the volume of factor cylinder is smaller, and pressure oil drives sub- cylinder piston rod 5 to stretch
Out；The pressure oil of the B mouth output of solenoid directional control valve one makes the hydraulic control mouth of hydraulic control one-way valve CF2 build pressure, hydraulic control one-way valve CF2 simultaneously
It opens, the oil liquid of master cylinder cavity of resorption is made to return to lower fuel tank, to realize the fast downlink movement of sliding block；During under fast, by filling
Liquid valve CF1 passes through master cylinder epicoele implementation of port 1c to master cylinder epicoele repairing.
The deceleration downlink of the HYDRAULIC CONTROL SYSTEM sliding block and the process of pressurization are as follows: sliding block runs to speed change point position and is usually
When sliding block has just touched the position of workpiece, three YV3 power loss of solenoid directional control valve, sub- cylinder is by the T mouth of three YV3 of solenoid directional control valve to oil
Tank drainback；The B mouth oil pressure of solenoid directional control valve one increases, and when the setting pressure of pressure rise to sequence valve F1, sequence valve F1 is beaten
It opens, pressure oil enters master cylinder epicoele from master cylinder epicoele hydraulic fluid port 1b, keeps sliding block lower slowly and pressurizes, realizes the work such as compacting or punching.
The process of the HYDRAULIC CONTROL SYSTEM sliding block release are as follows: servo motor M1 stops working, and all solenoid directional control valves lose
Electricity, master cylinder epicoele pass through the downward tank drainback of T mouth of check valve D1 and solenoid directional control valve one, and sub- cylinder passes through solenoid directional control valve three
The downward tank drainback of T mouth of YV3, the equal off-load of the pressure of master cylinder epicoele and sub- cylinder.
The process of the HYDRAULIC CONTROL SYSTEM sliding block backhaul are as follows: four YV4 of solenoid directional control valve obtain it is electric, servo motor M1 with maximum turn
Fast 2000r/min driving gear pump P1 work, the left valve YV2 of solenoid directional control valve one obtain electric, and the oil liquid of pump discharge is through electromagnetic switch
The A mouth and hydraulic control one-way valve CF2 of valve one enter master cylinder cavity of resorption hydraulic fluid port 1d, to oil cylinder cavity of resorption pump oil；The pressure that one A mouthfuls of solenoid directional control valve
Power oil makes the hydraulic control mouth of prefill valve CF1 build pressure, opens prefill valve CF1, and the oil liquid of master cylinder epicoele is returned through prefill valve CF1 to oil
Case；The oil liquid of sub- cylinder passes through the downward tank drainback of T mouth of three YV3 of solenoid directional control valve, to realize the backhaul action of sliding block.
As shown in Fig. 2, the servo motor M1 and each solenoid directional control valve of gear pump P1 are controlled by control system, control system
Including PLC controller and servo controller SDR, the port C+ of PLC controller is connected with COM port, servo start button SB1 string
Be associated between 000 port of PLC controller and the port C-, servo stop button SB2 be connected on 001 port of PLC controller with
Between the port C-；The port CN3-T/A1 of servo controller is connected with the port C- of PLC controller, servo controller SDR's
The port CN3-T/C1 is connected with 002 port of PLC controller；The coil of intermediate relay KA01 is connected to PLC controller
Between 100.00 ports and 24V-, the normally open contact of intermediate relay KA01 is connected to the port DI1 and the end COM of servo controller
Between mouthful；The port OUT1 of PLC controller is connected with the port AI1 of servo controller, the port OUT2 of PLC controller and servo
The port AI2 of controller is connected, and the port COM1 and the port COM2 of PLC controller are connected with the port GND1 of servo controller；
Alarm reset button SB10 is connected between the port DI4 of servo controller and COM port；The mating encoder PG of servo motor M1
Signal wire be connected with the feedback signal port of servo controller SDR, detection servopump P1 output pressure pump intake pressure sensing
Device P0 is connected with the port AI3 of servo controller, and the sliding block magnetic scale S1 for monitoring slide position is connected to the end IN1 of PLC controller
Mouthful.
PLC controller uses Omron CP1H-XA40DR, servo controller SDR to watch using remittance river IS580T040-R1
The power end for taking controller is equipped with filter EM1, closes circuit breaker Q F1, presses servo start button SB1, PLC controller investment
Work, it is electric that PLC controller obtains the coil of intermediate relay KA01, then the normally open contact closure of intermediate relay KA01, is watched
The port DI1 for taking controller receives enable signal, and servo controller SDR devotes oneself to work.
When the voltage between the port CN3-T/C1 of servo controller SDR and the port CN3-T/A1 jumps, then to
002 port of PLC controller issues alarm signal, and PLC controller makes the coil losing electricity of intermediate relay KA01, normally opened touching
Head disconnects, and servo controller is made to stop working.Alarm reset button SB10 is pressed, the port DI4 of servo controller receives multiple
Position signal, alarm release, pressing servo start button SB1 again can just resume work.
Voltage between the port OUT1 and the port COM1 of PLC controller is 0~10V, the uninterrupted of corresponding servopump,
When the voltage of the port PLC controller OUT1 increases, the port AI1 of servo controller SDR receives flow and increases signal, servo electricity
Machine M1 controls servopump P1 and increases flow output；Conversely, then reducing flow.
Voltage between the port OUT2 and the port COM2 of PLC controller is 0~10V, the pressure height of corresponding servopump,
When the voltage of the port PLC controller OUT2 increases, the port AI2 of servo controller SDR receives pressure rise signal, servo electricity
Machine M1 controls servopump P1 and improves oil pressure；Conversely, then reducing oil pressure.
Servo controller SDR receives the signal of sliding block magnetic scale S1, can realize the essence of slide position by closing also operation control
Really control.
Servo stop button SB2 is pressed, then PLC controller makes the coil losing electricity of intermediate relay KA01, normally opened touching
Head disconnects, and servo controller is made to stop working.
The utility model drives gear pump P1 using servo motor M1, makes full use of the high responsiveness energy of servo motor, ties
Close man-machine interface can be separately provided sliding block it is fast under, work into the speed of service in, backhaul each stage, be able to satisfy special processing technology and want
It asks, stepless speed regulation can be met in speed adjusting, 8-10 decibels are reduced in terms of noise, and can in conjunction with peripheral displacement sensor
The position of precision control sliding block, and low noise.The movement frequency of lathe can be adjusted by the revolving speed of servo motor and is adjusted, machine
Bed operating pressure is adjusted also by pump discharge pressure.Master cylinder pressure is using pump control rather than pressure regulator valve is relied on to adjust, operation
Mode is flexibly and control precision is high.
As shown in Figures 3 to 5, quick primary and secondary cylinder includes cylinder body 1 and plunger 4, and the top of cylinder body 1 is equipped with the cylinder of outer diameter amplification
Body boss 1a, cylinder body boss 1a top closed and it is equipped with cylinder center hole, plunger 4 is in up-thin-low-thick step-like, on plunger
Section 4a stretches out upwards from cylinder center hole, and plunger middle section 4b and plunger lower section 4c are located at the inner cavity of cylinder body 1；Cylinder body boss 1a's
Circumference is equipped with the master cylinder epicoele hydraulic fluid port 1b and master cylinder epicoele implementation of port 1c that communicate with cylinder upper cavity oil, in the lower circumference of cylinder body 1
Equipped with the master cylinder cavity of resorption hydraulic fluid port 1d communicated with oil cylinder cavity of resorption；The sub- cylinder of upper end opening, sub- cylinder are equipped with along the axis of plunger upper section 4a
In be plugged with sub- cylinder piston rod 5, along sub- cylinder piston rod 5 axis be equipped with perforation sub- cylinder oilhole 5b, the top of sub- cylinder oilhole 5b
Equipped with sub- cylinder hydraulic fluid port 5c.
Cylinder body 1 is fixed on girder by cylinder body boss 1a, and the volume of sub- cylinder is much smaller than the volume of cylinder body 1, pressure oil from
Sub- cylinder hydraulic fluid port 5c enters sub- cylinder inner cavity, sub- cylinder piston rod 5 can be made to have biggish stroke with lesser flow, connect sliding block
Before touching workpiece can it is fast under, it is fast under when, master cylinder epicoele implementation of port 1c carries out repairing to cylinder upper cavity oil.When shoe contact workpiece
When, sub- cylinder release, pressure oil enters cylinder body epicoele from master cylinder epicoele hydraulic fluid port 1b and carries out deceleration pressurization, it can be achieved that work is into compacting or rushes
The work such as sanction.Can be carried out by the cooperation of master cylinder and sub- cylinder, when sliding block moves downward lower fastly and work into switching, make punching machine
Operational efficiency is higher.Pressure oil enters master cylinder cavity of resorption hydraulic fluid port 1d, and cunning can be realized simultaneously to tank drainback in cylinder body epicoele and sub- cylinder
The upward backhaul of block.
The upper end periphery of plunger upper section 4a is screwed with plunger stop nut 4d, and the periphery of plunger stop nut 4d, which is shrouded, cylinder
Set 6, the lower end of cylinder sleeve 6 are fixed on the top of cylinder body boss 1a by cylinder sleeve flange 6a, cylinder sleeve 6 top closed and equipped with for son
The upper end of the cylinder sleeve centre bore that cylinder piston rod 5 passes through, sub- cylinder piston rod 5 is fixed on cylinder sleeve 6 by sub- cylinder piston rod boss 5a
Top.Plunger stop nut 4d defines the extreme position that plunger 4 extends downwardly, when to touch cylinder body convex by plunger stop nut 4d
When the top of platform 1a, plunger 4 reaches down stroke extreme position；Cylinder sleeve 6, which is protected sub- cylinder and provided for sub- cylinder piston rod boss 5a, to be determined
Position.
The bottom centre of plunger 4 is equipped with plunger counterbore, and the lower port of plunger counterbore is fixed with plunger Adjusting bolt Adjusting screw 7, plunger
Adjusting screw rod 8 is screwed in Adjusting bolt Adjusting screw 7, the lower section of plunger Adjusting bolt Adjusting screw 7 is equipped with screw locknut 8b, screw locknut
8b is screwed on adjusting screw rod 8 and is connected by lock-screw 8c with plunger Adjusting bolt Adjusting screw 7；The lower end of adjusting screw rod 8 is set with
Screw rod gland 9, the lower end surface center of screw rod gland 9 are equipped with gland counterbore, and the lower end of adjusting screw rod 8 is equipped with and adjusting screw rod 8
It is linked together and screw rod the projection seat 8a, screw rod projection seat 8a of outer diameter amplification is in gland counterbore, screw rod gland 9 passes through screw and cunning
Block top is fixedly connected.
Screw rod gland 9 is pressed on screw rod projection seat 8a, and is fixedly connected with a slide block；Plunger stop nut 4d makes plunger 4
Bottom dead center position is non-adjustable, and can not also adjust in cylinder sleeve 6；Plunger Adjusting bolt Adjusting screw 7 of the utility model in 4 lower end of plunger
In be screwed on adjusting screw rod 8, can accurately adjust the depth that is screwed on of adjusting screw rod 8, screw locknut 8b is screwed in adjusting screw rod 8
Thread root and between plunger Adjusting bolt Adjusting screw 7 there are gap, the extension elongation of adjusting screw rod 8 adjust it is accurate after, tighten lock
Tight screw 8c is deformed the screw thread of screw locknut 8b and adjusting screw rod 8 to be locked.So it may be implemented to slide
Block accurately repeats positioning, and the lower dead center trueness error of sliding block can be within ± 0.01mm.
The top of adjusting screw rod 8 is fixed with door 8d, and the outer diameter of door 8d is greater than the outer diameter of adjusting screw rod 8.It will first adjust
Screw rod 8 screws in plunger Adjusting bolt Adjusting screw 7, then installs door 8d at the top of adjusting screw rod 8, then consolidates plunger Adjusting bolt Adjusting screw 7
It is scheduled on the lower port of plunger counterbore, door 8d can fall off from plunger Adjusting bolt Adjusting screw 7 to avoid adjusting screw rod 8 in adjustment.
The top circumference of plunger lower section 4c is equipped with plunger seal section 4c1, and the inner chamber of cylinder block above plunger seal section 4c1 is constituted
Cylinder upper cavity oil, the inner chamber of cylinder block below plunger seal section 4c1 constitute oil cylinder cavity of resorption；The lower end of plunger lower section 4c is from cylinder mouth guide sleeve 2
Middle stretching, cylinder mouth guide sleeve 2 is fixed and is flush-mounted in the lower port inner wall of cylinder body 1, and the lower port of cylinder body 1 covers and is fixed with cylinder body pressure
Lid 3, the interior step of cylinder body gland 3 are pressed in the outer step of 2 lower end of cylinder mouth guide sleeve.Cylinder mouth guide sleeve 2, which plays the lower end of plunger 4, leads
To effect, and sealing is realized between plunger 4, cylinder body gland 3 carries out axially position to cylinder mouth guide sleeve 2.
The foregoing is merely the preferable possible embodiments of the utility model, patent that is non-therefore limiting to the utility model
Protection scope.In addition to the implementation, the utility model can also have other embodiments.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, is all fallen in the protection scope of the requires of the utility model.Technology of the utility model without description is special
Sign can realize that details are not described herein by or using the prior art.
Claims (4)
1. a kind of elaborate servo pump control hydraulic system, including driving the quick primary and secondary cylinder of sliding block and by servo motor (M1) driving
The inferior part of the cylinder block of gear pump (P1), the quick primary and secondary cylinder is equipped with master cylinder cavity of resorption hydraulic fluid port (1d), the cylinder body of the quick primary and secondary cylinder
Top is equipped with master cylinder epicoele hydraulic fluid port (1b) and master cylinder epicoele implementation of port (1c), sets at the top of the sub- cylinder piston rod of the quick primary and secondary cylinder
There is sub- cylinder hydraulic fluid port (5c), it is characterised in that: the entrance of gear pump (P1) is connected with lower fuel tank, the outlet of gear pump (P1) and electromagnetism
The P mouth of reversal valve one is connected, and the T mouth of solenoid directional control valve one is connected with lower fuel tank, the A mouth and hydraulic control one-way valve of solenoid directional control valve one
(CF2) entrance is connected, and the outlet of hydraulic control one-way valve (CF2) is connected with the master cylinder cavity of resorption hydraulic fluid port (1d) of quick primary and secondary cylinder, hydraulic control
The hydraulic control mouth of check valve (CF2) is connected with the B of solenoid directional control valve one mouth, the B mouth of solenoid directional control valve one by sequence valve (F1) with
The master cylinder epicoele hydraulic fluid port (1b) of quick primary and secondary cylinder is connected, and the outlet of sequence valve (F1) is connected with the entrance of check valve (D1), unidirectionally
The outlet of valve (D1) is connected with the entrance of sequence valve (F1)；The master cylinder epicoele implementation of port (1c) of quick primary and secondary cylinder passes through prefill valve
(CF1) it is connected with top tank, the hydraulic control mouth of prefill valve (CF1) is connected with the A of solenoid directional control valve one mouth；The B of solenoid directional control valve one
Mouth is also connected with the P mouth of solenoid directional control valve three (YV3), and the T mouth of solenoid directional control valve three (YV3) is connected with lower fuel tank, electromagnetic switch
The B mouth of valve three (YV3) is connected with the sub- cylinder hydraulic fluid port (5c) of quick primary and secondary cylinder；Solenoid directional control valve is first is that Median Function is the three of K-type
Position four-way electromagnetic reversing valve, solenoid directional control valve three (YV3) are two four-way electromagnetic reversing valves.
2. elaborate servo pump control hydraulic system according to claim 1, it is characterised in that: hydraulic control one-way valve (CF2) goes out
Mouth is connected by pressure regulator valve two (F2) with lower fuel tank.
3. elaborate servo pump control hydraulic system according to claim 2, it is characterised in that: the outlet of gear pump (P1) and tune
The entrance of pressure valve three (F3) and the B mouth of solenoid directional control valve four (YV4) are connected, the T mouth and pressure regulator valve three of solenoid directional control valve four (YV4)
(F3) outlet is connected with lower fuel tank, and solenoid directional control valve four (YV4) is two four-way electromagnetic reversing valves.
4. elaborate servo pump control hydraulic system according to claim 3, it is characterised in that: the servo motor of gear pump (P1)
(M1) and each solenoid directional control valve is controlled by control system, and the control system includes PLC controller and servo controller
(SDR), the port C+ of PLC controller is connected with COM port, and servo start button (SB1) is connected on 000 end of PLC controller
Between mouth and the port C-, servo stop button (SB2) is connected between 001 port of PLC controller and the port C-；SERVO CONTROL
The port CN3-T/A1 of device is connected with the port C- of PLC controller, and the port CN3-T/C1 of servo controller (SDR) and PLC are controlled
002 port of device processed is connected；The coil of intermediate relay (KA01) be connected to PLC controller 100.00 ports and 24V- it
Between, the normally open contact of intermediate relay (KA01) is connected between the port DI1 of servo controller and COM port；PLC controller
The port OUT1 be connected with the port AI1 of servo controller, the port OUT2 of PLC controller and the port AI2 of servo controller
It is connected, the port COM1 and the port COM2 of PLC controller are connected with the port GND1 of servo controller；Alarm reset button
(SB10) it is connected between the port DI4 of servo controller and COM port；The signal of servo motor (M1) mating encoder (PG)
Line is connected with the feedback signal port of servo controller (SDR), detects the pump intake pressure sensor of servopump (P1) output pressure
(P0) it is connected with the port AI3 of servo controller, the sliding block magnetic scale (S1) for monitoring slide position is connected to the IN1 of PLC controller
Port.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084110.9U CN209444636U (en) | 2019-01-18 | 2019-01-18 | A kind of elaborate servo pump control hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920084110.9U CN209444636U (en) | 2019-01-18 | 2019-01-18 | A kind of elaborate servo pump control hydraulic system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514903A (en) * | 2019-01-18 | 2019-03-26 | 扬力集团股份有限公司 | High-efficiency and precision servo-pump control hydraulic press and its processing method for stamping |
| CN113153848A (en) * | 2021-04-19 | 2021-07-23 | 无锡贝斯特精机股份有限公司 | Hydraulic system with pre-compression function |
| CN113290797A (en) * | 2021-05-21 | 2021-08-24 | 苏州立注机械有限公司 | High-efficient primary and secondary jar and hydraulic control system thereof |
-
2019
- 2019-01-18 CN CN201920084110.9U patent/CN209444636U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514903A (en) * | 2019-01-18 | 2019-03-26 | 扬力集团股份有限公司 | High-efficiency and precision servo-pump control hydraulic press and its processing method for stamping |
| CN109514903B (en) * | 2019-01-18 | 2024-03-26 | 扬力集团股份有限公司 | High-efficiency precise servo pump control hydraulic punch press and punching processing method thereof |
| CN113153848A (en) * | 2021-04-19 | 2021-07-23 | 无锡贝斯特精机股份有限公司 | Hydraulic system with pre-compression function |
| CN113153848B (en) * | 2021-04-19 | 2023-03-28 | 无锡贝斯特精机股份有限公司 | Hydraulic system with pre-compression function |
| CN113290797A (en) * | 2021-05-21 | 2021-08-24 | 苏州立注机械有限公司 | High-efficient primary and secondary jar and hydraulic control system thereof |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220222 Address after: 225000 No. 17, shepherd Road, high tech Industrial Development Zone, Yangzhou City, Jiangsu Province Patentee after: Jiangsu Yangli Hydraulic Equipment Co.,Ltd. Address before: 225127 No. 98, Yangli Road, Hanjiang Economic and Technological Development Zone, Hanjiang District, Yangzhou City, Jiangsu Province Patentee before: JIANGSU GUOLI FORGING MACHINE TOOL Co.,Ltd. |