CN207437475U - A kind of numerical control press electrohydraulic servo-controlling system - Google Patents
A kind of numerical control press electrohydraulic servo-controlling system Download PDFInfo
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- CN207437475U CN207437475U CN201721365219.7U CN201721365219U CN207437475U CN 207437475 U CN207437475 U CN 207437475U CN 201721365219 U CN201721365219 U CN 201721365219U CN 207437475 U CN207437475 U CN 207437475U
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Abstract
The utility model discloses a kind of numerical control press electrohydraulic servo-controlling system, including displacement sensor, servo actuator, servo valve one, pumping plant, CNC controller and servo controller；The CNC controller is connected with the servo controller signal；The servo controller is electrically connected respectively with the servo actuator and servo valve one；The servo controller is connected with the displacement transducer signal；The servo valve one is electrically connected with the pumping plant.Low energy consumption for the utility model, and caloric value is low, and energy saving and performance is stablized, and high performance hydraulic servo actuating unit is provided for the main transmission of NC turret punch machine, so as to provide high performance technical solution and product for NC turret punch machine.
Description
Technical field
The utility model belongs to numerical control press technical field of transmission, more particularly to a kind of numerical control press electro-hydraulic servo
Control system.
Background technology
NC turret punch machine is in fields such as electronic apparatus, machine industry, communication aviation, automobile making, medical instruments
It suffers from being widely applied, its main transmission is mainly up and down motion speed and the position for controlling punch mold, is come real
The now techniques such as the punching to plate, cold moudling.Transmission at present is mainly using mechanical and hydraulic driven.Main transmission section
Punching press frequency directly affects the production efficiency of numerical control press, is the most important performance indicator of lathe, is always numerical control press manufacture
Business and user's extremely focus of attention.
Machine driving NC turret punch machine is the earliest a kind of lathe of development, and this kind of NC turret punch machine is by a master
Motor drives flywheel rotation, carries out punching press using the inertia of flywheel, punching press control is carried out by clutch.The shortcomings that this transmission is
It will be apparent that first, mechanical type numerical control rotating tower punch must wait flywheels to turn over a circle, a punching press, punching stroke are just carried out
It is fixed, so drawing velocity cannot improve, just 180 beats/min or so of highest at present.This be also present many manufacturers no longer
Produce the main reason for this kind of number rushes.Secondly as the stroke of striking head cannot control, be difficult to control during shaping punching press.
As this kind of lathe has to can be only achieved preferable shaping by adjusting number stamping die, it is larger to adjust difficulty.In addition, this kind of lathe
The shortcomings of also power consumption is larger, punching press noise is big and friction plate loss is fast.With the development of technology, there is hydraulic driven
NC turret punch machine.Many advantages of this kind of lathe due to hydraulic drive in itself, such as power -- weight ratio (or power -- mass ratio)
Greatly, there is very big power to transfer density, may be constructed small, light-weight, fast response time high-power control unit, entirely
Stroke can send maximum stamping press, have many advantages, such as good stepless speed regulation, thus be widely used.Hydraulic pressure passes
Dynamic is also current mainstream configuration.Compared with mechanical main transmission, oil cylinder is instead of the mechanical structures such as complicated crankshaft-link rod, liquid
Pressure station provides power, and the two is connected by main hydraulic valve block, passes through the action of special electronic card Programmed control whole system.
In recent years, the craftsmanship of metal plate punching is further expanded, do not require nothing more than can to metal plate carry out high-speed marking,
Quick punching, but also to complete some and such as stretch and roll Special moulding process.At this moment hydraulic drive is belonged to due to itself
Opened loop control just seems unable to do what one wishes for the control of accurate position, holding pressure control.Then it is external to have developed electro-hydraulic watch first
Dress system.It is developed based on servo valve, on the basis of all advantages of hydraulic drive are possessed, can realize punch
High precision position control, the functions such as speed control, but the technological deficiency of existing dynamical system is：According to maximum, force and maximum
Speed calculates realization, so as to cause dynamical system in the entire motion process all with maximum power output, i.e., need not
It is also run during high-power movement with maximum power.Domestic numerically-controlled machine tool industry electrohydraulic servo system is in monopolizes shape by foreign countries before this
State, the exploitation of this domestic system are in space state.The external virtuous state's Rexroth of main manufacturer, Schneider, but they
Product is there are energy consumption and caloric value greatly and the shortcomings of thus caused performance is unstable.
Utility model content
The utility model is directed to technical problem in the prior art, provides a kind of numerical control press electro-hydraulic servo control
System, can reach that low energy consumption, and caloric value is low, and energy saving and performance is stablized, for NC turret punch machine main transmission provide it is high performance
Hydraulic servo actuating unit, so as to provide high performance technical solution and the advantageous effect of product for NC turret punch machine.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of numerical control press electro-hydraulic servo
Control system, including displacement sensor, servo actuator, servo valve one, pumping plant, CNC controller and servo controller；
The CNC controller is connected with the servo controller signal；The servo controller is made respectively with the servo
Dynamic device and servo valve one are electrically connected；The servo controller is connected with the displacement transducer signal；The servo valve one with
The pumping plant is electrically connected.
Preferably, the pumping plant includes accumulator, servo valve two, safety valve, cooler, filter one, liquid pump, electricity
Machine, temperature switch, liquid-level switch, thermometer, air filter, filter two and check valve；
The accumulator is connected with the servo valve two；The servo valve two is connected with the safety valve；The safety valve
It is connected with the check valve；The check valve is connected with the filter two；The filter two is connected with the liquid pump；Institute
Motor is stated to be electrically connected with the liquid pump；The filter one is connected with the cooler；The cooler and the liquid
Pump connection.
Preferably, the pumping plant is equipped with load-sensitive switching valve.
Compared with prior art, advantageous effect possessed by the utility model is：Low energy consumption for the utility model, caloric value
Low, energy saving and performance is stablized, and high performance hydraulic servo actuating unit is provided for the main transmission of NC turret punch machine, so as to be number
It controls rotating tower punch and high performance technical solution and product is provided.
Description of the drawings
Fig. 1 is the electro-hydraulic servo work station overall structure block diagram of the utility model；
Fig. 2 is the structure diagram of the pumping plant of the utility model；
Fig. 3 is the schematic diagram of the punch of the utility model；
Fig. 4 is the efficiency of the practice display figure of the utility model；
Fig. 5 is the structure chart of the used responsible sensitive switching valve of the utility model.
1- displacement sensors in figure, 2- servo actuators, 3- servo valves one, 4- pumping plants, 5-CNC controllers, 6- servo controls
Device processed；
401- accumulators, 402- servo valves two, 403- safety valves, 404- coolers, 405- filters one, 406- liquid
Pump, 407- motors, 408- temperature switches, 409- liquid-level switches, 410- thermometers, 411- air filters, 412- filters two, 413-
Check valve.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real for those skilled in the art is made to be better understood from the technical solution of the utility model
Example is applied to elaborate to the utility model.
The embodiment of the utility model discloses a kind of numerical control press electrohydraulic servo-controlling system, as shown in the figure, it is wrapped
Include displacement sensor 1, servo actuator 2, servo valve 1, pumping plant 4, CNC controller 5 and servo controller 6；
CNC controller 5 is connected with 6 signal of servo controller；Servo controller 6 respectively with servo actuator 2 and servo valve
One 3 are electrically connected；Servo controller 6 is connected with 1 signal of displacement sensor；Servo valve 1 is electrically connected with pumping plant 4.
In the present embodiment, pumping plant 4 includes accumulator 401, servo valve 2 402, safety valve 403, cooler 404, filter
One 405, liquid pump 406, motor 407, temperature switch 408, liquid-level switch 409, thermometer 410, air filter 411, filter two
412 and check valve 413；
Accumulator 401 is connected with servo valve 2 402；Servo valve 2 402 is connected with safety valve 403；Safety valve 403 with it is unidirectional
Valve 413 connects；Check valve 413 is connected with filter 2 412；Filter 2 412 is connected with liquid pump 406；Motor 407 and liquid
Pump 406 is electrically connected；Filter 1 is connected with cooler 404；Cooler 404 is connected with liquid pump 406.
In the present embodiment, pumping plant 4 is equipped with load-sensitive switching valve.
In the present embodiment, the pump station part of quantity of heat production maximum is using load-sensitive principle, corresponding to different operating modes, hydraulic pressure
Cylinder has different power outputs, can greatly save input power.Can be according to needed for exporting the actual requirement of load during work
Power and flow, considerably reduce power consumption.A load-sensitive switching valve is designed specially on pumping plant, introduces load pressure
Power, compared with pump station pressure, when low-load works, switching valve is in low-pressure supply state, makes hydraulic cylinder output power
It reduces, when running into large-tonnage, the load pressure of introducing automatically switches to high voltage supply circuit, to export large-tonnage, and negative
It carries after disappearing, switching valve automatically switches to low pressure supply state again.Switching time can be achieved to 2ms.It is designed by this, pumping plant
Power is actually entered up to 11KW, less than the 15-18.5KW of similar product, it is achieved thereby that the energy saving and reduction fever of pumping plant
Amount improves the effect of stability.
In the present embodiment, NC turret punch machine with electrohydraulic servo-controlling system mainly by servo controller, electrohydraulic servo valve,
The compositions such as actuator (such as servo motor, servoBcylinder), sensor, it is the power component of NC turret punch machine, control
The up-down blanking movement of punch, can realize position control, speed control, Acceleration Control and servo antrol etc..Its performance
Determine the energy consumption and working frequency of punching machine.
In the present embodiment, as shown in Figure 1, pumping plant provides flow and the pressure that system needs, pass through giving for servo controller
It is fixed to export that the up and down motion of servo actuator is controlled to control, it is measured in due course by the displacement sensor being connected on cylinder piston rod
And feedback, displacement signal is fed back into servo amplifier and realizes closed-loop control, it is final to realize to forcer position, stroke and speed
Accurate control.
Punch is achieved in technological requirements such as the punchings of plate, as shown in Figure 3.Existing dynamical system is according to maximum
Power and maximum speed calculate realization, so as to cause dynamical system in entire motion process all with maximum power output, i.e.,
It is also run when high-power movement is not required with maximum power.
To solve the problems, such as this, it is specially that a load-sensitive switching valve is designed on pumping plant on pumping plant, introduces load pressure
Power, compared with pump station pressure, when low-load works, switching valve is in low-pressure supply state, makes hydraulic cylinder output power
It reduces, when running into large-tonnage punching, the load pressure of introducing automatically switches to high voltage supply circuit, to export large-tonnage, and
After load disappears, switching valve automatically switches to low pressure supply state again.Automatic high speed load-sensitive switching valve, response time
2ms。
In the present embodiment, as shown in figure 4, because technological requirement when punching machine works, punch will be apart from plate before punching press starts
Material 1mm is broken through and 2mm is wanted after plate apart from lost motion () in figure 3. apart from lost motion () in figure 1., during backhaul (in figure 4.)
Want 5mm lost motions.As long as the power of this three process very littles is realized.
In the present embodiment, as shown in figure 5, pumping plant power reduces, efficiency is constant, so that entire electro-hydraulic servo work station work(
Rate reduces, and so as to substantially reduce caloric value, performance is stablized, also achieved the effect that energy saving.
The utility model is described in detail above by embodiment, but the content is only showing for the utility model
Example property embodiment, it is impossible to be construed as limiting the scope of the utility model.The scope of protection of the utility model is by right
Claim limits.It is all to utilize technical solution described in the utility model or those skilled in the art in the utility model technology
Under the inspiration of scheme, in the essence and protection domain of the utility model, design similar technical solution and reach above-mentioned skill
All the changes and improvements that are art effect or being made to application range etc., the patent that should all still belong to the utility model is contained
Within lid protection domain.
Claims (3)
1. a kind of numerical control press electrohydraulic servo-controlling system, which is characterized in that including displacement sensor, servo actuator, watch
Take valve one, pumping plant, CNC controller and servo controller；
The CNC controller is connected with the servo controller signal；The servo controller respectively with the servo actuator
It is electrically connected with servo valve one；The servo controller is connected with the displacement transducer signal；The servo valve one with it is described
Pumping plant is electrically connected.
A kind of 2. numerical control press electrohydraulic servo-controlling system according to claim 1, which is characterized in that the pumping plant bag
Include accumulator, servo valve two, safety valve, cooler, filter one, liquid pump, motor, temperature switch, liquid-level switch, temperature
Meter, air filter, filter two and check valve；
The accumulator is connected with the servo valve two；The servo valve two is connected with the safety valve；The safety valve and institute
State check valve connection；The check valve is connected with the filter two；The filter two is connected with the liquid pump；The electricity
Machine is electrically connected with the liquid pump；The filter one is connected with the cooler；The cooler connects with the liquid pump
It connects.
3. a kind of numerical control press electrohydraulic servo-controlling system according to claim 1, which is characterized in that the pumping plant is set
There is load-sensitive switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721365219.7U CN207437475U (en) | 2017-10-23 | 2017-10-23 | A kind of numerical control press electrohydraulic servo-controlling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721365219.7U CN207437475U (en) | 2017-10-23 | 2017-10-23 | A kind of numerical control press electrohydraulic servo-controlling system |
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| CN207437475U true CN207437475U (en) | 2018-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725506A (en) * | 2017-10-23 | 2018-02-23 | 天津世仓工业设备有限公司 | A kind of numerical control press electrohydraulic servo-controlling system |
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2017
- 2017-10-23 CN CN201721365219.7U patent/CN207437475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725506A (en) * | 2017-10-23 | 2018-02-23 | 天津世仓工业设备有限公司 | A kind of numerical control press electrohydraulic servo-controlling system |
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