CN106735394B - A kind of dual sided porous drilling hydraulic system of modular machine tool - Google Patents
A kind of dual sided porous drilling hydraulic system of modular machine tool Download PDFInfo
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- CN106735394B CN106735394B CN201611253130.1A CN201611253130A CN106735394B CN 106735394 B CN106735394 B CN 106735394B CN 201611253130 A CN201611253130 A CN 201611253130A CN 106735394 B CN106735394 B CN 106735394B
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- way solenoid
- hydraulic
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
-
- 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
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B11/22—Synchronisation of the movement of 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/02—Use of a particular power source
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, two slide unit hydraulic systems include left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and Speed changeover circuit and pressure control loop.The present invention provides the two-sided processing works that a kind of dual sided porous drilling hydraulic system of modular machine tool can synchronously complete workpiece simultaneously, carry out the drilling of workpiece, and can ensure the required precision when drilling works, working cycles of the completion F.F. work into rewind.The efficiency of work pieces process in assembly line is improved, while reducing the amount of labour of worker.The hydraulic system structure is simple, it adapts to work speed in building-block machine and differs larger situation with F.F., rewind speeds, pass through the rational design of the hydraulic system and the suitable Hydraulic Elements of selection and hydraulic circuit, the total flow demand for reducing hydraulic oil has the stability under certain speed adjustable range and low-speed running.
Description
Technical field
The present invention relates to a kind of dual sided porous drilling hydraulic system of modular machine tool, belong to technical field of hydraulic pressure.
Background technology
Worked in the world using hydraulic system in First meaning be 1795 Englishman create be with water
The hydraulic press of medium, after by more than 100 years development oil just instead of water as working media.Hydraulic drive is to be with liquid
The mechanical energy of prime mover is converted to the pressure energy of liquid by driving device by working media, then passes through pipeline, hydraulic control
And the pressure energy of liquid is converted to mechanical energy, straight line or revolution fortune are realized in driving load by regulating device etc. by executive device
It is dynamic.Hydraulic system is the pressure using liquid, the realization power transmission of the variation by sealed volume.
As an emerging technology, by various countries' extensive utilization to modern industry, it passes through liquid for hydraulic drive
Pressure energy conversion realize energy transmission, compared to the simpler convenience of general machine driving.The protrusion of hydraulic system
Advantage makes its application on building-block machine more and more extensive, has the characteristics that discharge the energy of bigger with small size.In group
In the linear motion for closing lathe executive item, using hydraulic drive convenience more simpler than general machine driving.Hydraulic drive system
System can usually complete the conversion of power and movement, such as to be required for hydraulic system to provide powerful for the large scale equipment in building industry
Power.Rational hydraulic system can provide the power of cutting to building-block machine, can be simultaneously reached the purpose of low energy consumption so that work
People's is simple to operate.
Invention content
Purpose：In order to overcome the above deficiency, the demand of reality is considered, the present invention provides a kind of dual sided porous drillings
Hydraulic system of modular machine tool can simultaneously be processed the two-sided of workpiece, realize that F.F.-work, can into the working cycles of-rewind
To improve the efficiency of work pieces process, facilitates operation and reduce the amount of labour, and ensure that the precision of work pieces process.
Technical scheme is as follows：
A kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, two slide unit hydraulic systems
Including left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and Speed changeover circuit and pressure control
Circuit processed, wherein
The left speed control loop includes hydraulic cylinder, pressure switch and single direction stroke speed adjusting valve, the hydraulic cylinder without bar
Chamber end is separately connected one end of pressure switch and single direction stroke speed adjusting valve, and the other end connection of the single direction stroke speed adjusting valve is left
Commutation and Speed changeover circuit, hydraulic cylinder rod chamber end connect left commutation and Speed changeover circuit, the left speed control loop
It is identical with right speed control loop structure；
It is described it is left commutation and Speed changeover circuit include 3 position-5 way solenoid valve, the first check valve, guide type sequence valve and
Counterbalance valve, the 3 position-5 way solenoid valve there are three operating position and five hydraulic fluid ports, the 3 position-5 way solenoid valve at middle position,
First hydraulic fluid port is separately connected single direction stroke speed adjusting valve and the first check valve oil outlet, and the first check valve oil inlet is separately connected
One end of counterbalance valve and the 5th hydraulic fluid port of 3 position-5 way solenoid valve；Second hydraulic fluid port connection liquid cylinder pressure of the 3 position-5 way solenoid valve
Rod chamber end；The third hydraulic fluid port of the 3 position-5 way solenoid valve connects fuel tank；4th hydraulic fluid port of the 3 position-5 way solenoid valve
Connect pressure control loop；Described the 5th hydraulic fluid port of 3 position-5 way solenoid valve connection counterbalance valve one end, the counterbalance valve other end connect
Guide type sequence valve is connect, the guide type sequence valve connects fuel tank, the left commutation and Speed changeover circuit and right commutation and speed
It is identical to spend changing-over loop structure；
The pressure control loop includes the first plunger pump, the second plunger pump, first throttle valve, second throttle, second
Check valve, third check valve, the first overflow valve, the second overflow valve, two-position two-way solenoid valve and limit seam type oil filter, the limit gap
Formula oil filter is separately connected one end of the first plunger pump and the second plunger pump, and the other end connection first of first plunger pump is overflow
Valve is flowed, second check valve and first throttle valve are connected in parallel on mutually the 4th hydraulic fluid port and first of left commutation and Speed changeover circuit
Between plunger pump；The other end of second plunger pump is separately connected the oil inlet and the second overflow valve of third check valve, described
The oil outlet of third check valve is separately connected one end of the 4th hydraulic fluid port and second throttle of right commutation and Speed changeover circuit, institute
The other end for stating second throttle connects the oil inlet of the second check valve, the second overflow valve other end and bi-bit bi-pass electromagnetism
Valve one end connects, and the other end of the two-position two-way solenoid valve is connect with fuel tank, first overflow valve, the second overflow valve and limit
Seam type oil filter is connect with a fuel tank respectively.
Preferably, the single direction stroke speed adjusting valve includes stroke valve, the 4th check valve and speed governing valve, and three's parallel connection connects
It connects, the rodless cavity end of the oil inlet connection liquid cylinder pressure of the 4th check valve, oil outlet connects the first of 3 position-5 way solenoid valve
Hydraulic fluid port.
Preferably, first plunger pump and the second plunger pump are respectively high pressure low discharge quantitative plunger pump and low pressure height stream
Measure quantitative plunger pump.
Preferably, the left and right slide unit hydraulic system is separately positioned on horizontal slide rail.
Advantageous effect：The present invention provides a kind of dual sided porous drilling hydraulic system of modular machine tool, can synchronously complete work simultaneously
The two-sided processing work of part carries out the drilling of workpiece, and can ensure the required precision when drilling works, and completes F.F.-work
Into the working cycles of-rewind.The efficiency of work pieces process in assembly line is improved, while reducing the amount of labour of worker.In addition, should
Hydraulic system structure is simple, adapts to work speed in building-block machine and differs larger situation with F.F., rewind speeds, passes through the liquid
The rational design of pressure system and the suitable Hydraulic Elements of selection and hydraulic circuit, reduce the total flow demand of hydraulic oil, have
For the stability under speed adjustable range and low-speed running centainly.
Description of the drawings
Fig. 1 is the operating mode schematic diagram of left and right slide unit hydraulic system；
Fig. 2 is the hydraulic system principle figure of the method for the present invention；
Fig. 3 is the speed control loop figure of hydraulic system；
Fig. 4 is commutation and the Speed changeover circuit figure of hydraulic system；
Fig. 5 is the pressure control loop figure of hydraulic system；
In figure：Hydraulic cylinder 1, pressure switch 2, single direction stroke speed adjusting valve 3, stroke valve 3-1, the 4th check valve 3-2, speed governing
Valve 3-3,3 position-5 way solenoid valve 4, the first check valve 5, counterbalance valve 6, guide type sequence valve 7, the first plunger pump 8, the second plunger
Pump 9, first throttle valve 10-1, second throttle 10-2, the second check valve 11-1, third check valve 11-2, the first overflow valve 12-
1, the second overflow valve 12-2, two-position two-way solenoid valve 13, limit seam type oil filter 14, fuel tank 15.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
As shown in Figs. 1-5, a kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, two
Slide unit hydraulic system includes that left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and speed changing-over are returned
Road and pressure control loop, wherein
The left speed control loop includes hydraulic cylinder 1, pressure switch 2 and single direction stroke speed adjusting valve 3, the hydraulic cylinder 1
Rodless cavity end is separately connected one end of pressure switch 2 and single direction stroke speed adjusting valve 3, the single direction stroke speed adjusting valve 3 it is another
End connects left commutation and Speed changeover circuit, and 1 rod chamber end of the hydraulic cylinder connects left commutation and Speed changeover circuit, the left side
Speed control loop is identical with right speed control loop structure；
The left commutation and Speed changeover circuit include 3 position-5 way solenoid valve 4, the first check valve 5, guide type sequence valve 7
With counterbalance valve 6, there are three operating position and five hydraulic fluid ports for the 3 position-5 way solenoid valve 4, and the 3 position-5 way solenoid valve 4 is in
When position, the first hydraulic fluid port is separately connected 5 oil outlet of single direction stroke speed adjusting valve 3 and the first check valve, 5 oil inlet of the first check valve
It is separately connected one end of counterbalance valve 6 and the 5th hydraulic fluid port of 3 position-5 way solenoid valve 4；Second oil of the 3 position-5 way solenoid valve 4
The rod chamber end of mouth connection liquid cylinder pressure 1；The third hydraulic fluid port of the 3 position-5 way solenoid valve 4 connects fuel tank 15；The 3 position-5 way
4th hydraulic fluid port of solenoid valve 4 connects pressure control loop；6 one end of described the 5th hydraulic fluid port of 3 position-5 way solenoid valve 4 connection counterbalance valve,
6 other end of the counterbalance valve connects guide type sequence valve 7, and the guide type sequence valve 7 connects fuel tank, the left commutation and speed
Changing-over circuit and right commutation are identical with Speed changeover circuit structure；
The pressure control loop includes the first plunger pump 8, the second plunger pump 9, first throttle valve 10-1, second throttle
10-2, the second check valve 11-1, third check valve 11-2, the first overflow valve 12-1, the second overflow valve 12-2, bi-bit bi-pass electromagnetism
Valve 13 and limit seam type oil filter 14, the limit seam type oil filter 14 are separately connected the one of the first plunger pump 8 and the second plunger pump 9
The other end at end, first plunger pump 8 connects the first overflow valve 12-1, the second check valve 11-1 and first throttle valve
10-1 is connected in parallel on mutually between left commutation and the 4th hydraulic fluid port and the first plunger pump 8 of Speed changeover circuit；Second plunger pump 9
The other end be separately connected the oil inlet and the second overflow valve 12-2 of third check valve 11-2, the third check valve 11-2's goes out
Hydraulic fluid port is separately connected one end of the 4th hydraulic fluid port and second throttle 10-2 of right commutation and Speed changeover circuit, second throttling
The other end of valve 10-2 connects the oil inlet of the second check valve 11-1, the second overflow valve 12-2 other ends and bi-bit bi-pass electricity
13 one end of magnet valve connects, and the other end of the two-position two-way solenoid valve 13 connect with fuel tank 15, the first overflow valve 12-1, the
Two overflow valve 12-2 and limit seam type oil filter 14 are connect with a fuel tank 15 respectively.
Preferably, the single direction stroke speed adjusting valve 3 includes stroke valve 3-1, the 4th check valve 3-2 and speed governing valve 3-3, and three
Person is connected in parallel, the rodless cavity end of the oil inlet connection liquid cylinder pressure 1 of the 4th check valve 3-2, and oil outlet connects 3 position-5 way
First hydraulic fluid port of solenoid valve 4.
Preferably, first plunger pump, 8 and second plunger pump 9 is respectively that high pressure low discharge quantitative plunger pump and low pressure are high
Flow quantitative plunger pump.
Preferably, the left and right slide unit hydraulic system is separately positioned on horizontal slide rail.
The required work completed of the dual sided porous drilling hydraulic system of modular machine tool of the present invention is that two-sided be carried out at the same time is cut
Cut work, job specification is identical, i.e. the required cutting force completed of left and right slide unit is identical, F.F., work into, rewind stroke and
Corresponding desired speed is identical, complete F.F.-work into-rewind working cycles.Therefore, slide unit hydraulic system in left and right has identical
Working condition chart, as shown in Figure 1, solid line P represents the change curve of input power, the variation that short dash line P1 represents oil inlet cavity pressure is bent
Line, long dotted line q are the change curve of input flow rate, more than abscissa are respectively input power, oil inlet cavity pressure and input flow rate
It is the change curve in rewind stage in F.F. and work into the change curve in stage, below abscissa.
The design principle of the present invention is as follows：
It is illustrated in figure 2 the hydraulic system principle figure of the offer of the present patent application, the dual sided porous that workpiece may be implemented bores
Work is cut, synchronously completes F.F.-work into the working cycles of-rewind, which has certain speed adjustable range and low
Stability under speed operating.The hydraulic system principle figure applied in order to better understand the present invention, by Fig. 2 Hydraulic System Principles
Figure is decomposed into following three loop feature：
It is illustrated in figure 3 the speed control loop of hydraulic system, in order to ensure the required precision of workpiece cutting, in the cutting of lathe
I.e. work into the speed in stage and the efficiency of transmission be lower, therefore select throttle grverning, lathe carry out boring work when
It waits, cutting force is just to load, while the stabilization of speed and cutting force variation are smaller when in order to cut, and can select speed governing valve
The mode of inlet throttle speed governing.Due to drilling machine in F.F. speed, work into when speed it is slower, be converted to work in F.F.
Into in the process, it is contemplated that reduce compression shock, single direction stroke speed adjusting valve can be selected to change connection speed, which passes through pressure
Power relay sends out commutation signal and can reach required precision to final position, and hydraulic cylinder is differential connection side during F.F.
Formula can reach the purpose of quick back and forth movement；
It is illustrated in figure 4 commutation and the Speed changeover circuit figure of hydraulic system, reversal valve is 3 position-5 way solenoid valve.Due to
In F.F., in-line is communicated with oil return line, and oil cannot pass through counterbalance valve and flow back to fuel tank at this time, so a guide can be arranged
Formula sequence valve is installed in the loop.Guide type sequence valve is because circuit pressure when F.F. is low without opening, oil return line at this time
Oil can only converge by check valve with in-line.Be converted to work into after work in hydraulic system F.F. work, at this time in-line with
Oil return line will work independently, and need to be separated, and fuel tank is flowed back in oil return after counterbalance valve, so needing that a check valve is arranged.
Switching to work into rear, stroke valve open circuit, system pressure increase under speed governing valve action at this time, and pilot-operated type pilot sequencing valve is opened,
Oil return flows back to fuel tank through counterbalance valve, while counterbalance valve can enhance stability when hydraulic cylinder is run, and since then simultaneously, hydraulic system exists
Check valve forms high pressure to allow hydraulic cylinder to reach the demand of normal work after cutting off oil return line.
If Fig. 5 is pressure control loop, two slide units of lathe work into when using not interfereing with each other circuit, therefore select
Double pump oil supply loop, high pressure low discharge quantitative plunger pump for hydraulic system provide high pressure oil for two slide units work into when make
With the quick movement of two slide units may be implemented in low-pressure high-flowrate quantitative plunger pump.Two slide unit work cannot interfere with each other, institute
With high pressure low discharge quantitative plunger pump, low-pressure high-flowrate quantitative plunger pump oil not by first throttle valve, second throttle,
Second check valve, third check valve enter their system.Meanwhile overflow valve can be set, high pressure low discharge is fixed after pressure regulation
Amount plunger pump enters the circuit on both sides, work into when high pressure low discharge quantitative plunger oil pump feed, low-pressure high-flowrate quantitative plunger pump unloads
Lotus.
The workflow of the present invention is as follows：
It is the hydraulic buttery valve sequence of movement table of hydraulic system as shown in table 1, can clearly indicates hydraulic system in difference
Working stage such as：F.F., work are into when, rewind and stop and original position stop, the sequence of movement of electromagnet, wherein+number indicate
To open ,-number be expressed as closing.
Table 1
When lathe is in F.F. state, two-position two-way solenoid valve is closed, the ends 2DT of left slide unit hydraulic system
And the ends 4DT of right slide unit hydraulic system are opened, the ends 5DT of the ends 3DT of left slide unit hydraulic system and right slide unit hydraulic system
It closes, stroke valve is closed；Hydraulic oil flows to 3 position-5 way solenoid valve, 3 position-5 way solenoid valve left position work by pressure control loop
Make, hydraulic oil directly reaches hydraulic cylinder rodless cavity through 3 position-5 way solenoid valve left position by the stroke valve in speed control loop, at this time
The hydraulic oil of hydraulic cylinder rod chamber enters oil inlet after 3 position-5 way solenoid valve left position enters oil return line part using check valve
Road, at this time guide type sequence valve do not open, save oil consumption.
When lathe is in work into state, two-position two-way solenoid valve is in the open state, the ends 2DT of left slide unit hydraulic system
And the ends 4DT of right slide unit hydraulic system are opened, the ends 5DT of the ends 3DT of left slide unit hydraulic system and right slide unit system are closed,
Stroke valve is opened；High pressure low discharge quantitative plunger oil pump feed at this time, low-pressure high-flowrate quantitative plunger pump off-load, hydraulic oil pass through tune
Speed governing valve in fast circuit enters in hydraulic cylinder rodless cavity, and the hydraulic oil in hydraulic cylinder rod chamber is left through 3 position-5 way solenoid valve
Position enters fuel tank into oil return line by counterbalance valve and guide type sequence valve.
When lathe is in resting state, two-position two-way solenoid valve is in the open state, the ends 2DT of left slide unit hydraulic system
And the ends 4DT of right slide unit hydraulic system are opened, the ends 5DT of the ends 3DT of left slide unit hydraulic system and right slide unit hydraulic system
It closes, stroke valve is opened；Hydraulic cylinder travel reaches cutting depth requirement at this time, and pressure switch sends out commutation signal.
When lathe is in fast-rewinding state, two-position two-way solenoid valve is closed, the ends 2DT of left slide unit hydraulic system
And the ends 4DT of right slide unit hydraulic system are closed, the ends 5DT of the ends 3DT of left slide unit hydraulic system and right slide unit hydraulic system
It opens, stroke valve is closed；The right position work of 3 position-5 way solenoid valve, hydraulic oil are flowed directly into through the right position of 3 position-5 way solenoid valve at this time
Hydraulic cylinder rod chamber, hydraulic oil in hydraulic cylinder rodless cavity through in speed control loop check valve or stroke valve flow to 3 position-5 way electricity
Magnet valve returns to fuel tank behind right position.
When hydraulic cylinder falls back on terminal soon, pressure rises, and pressure switch is opened, and sending out electric signal makes 1DT open.That is machine
When bed is in original position stop state, two-position two-way solenoid valve is in the open state, plays Unloading Effect, 3 position-5 way solenoid valve and row
Journey valve is in closed state, is stopped.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (4)
1. a kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, which is characterized in that two slide
Platform hydraulic system includes left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and Speed changeover circuit
And pressure control loop, wherein
The left speed control loop includes hydraulic cylinder, pressure switch and single direction stroke speed adjusting valve, the rodless cavity end of the hydraulic cylinder
It is separately connected one end of pressure switch and single direction stroke speed adjusting valve, the other end of the single direction stroke speed adjusting valve connects left commutation
And Speed changeover circuit, hydraulic cylinder rod chamber end connect left commutation and Speed changeover circuit, the left speed control loop and the right side
Speed control loop structure is identical；
The left commutation and Speed changeover circuit include 3 position-5 way solenoid valve, the first check valve, guide type sequence valve and back pressure
Valve, there are three operating position and five hydraulic fluid ports for the 3 position-5 way solenoid valve, and the 3 position-5 way solenoid valve is at middle position, and first
Hydraulic fluid port is separately connected the oil outlet of single direction stroke speed adjusting valve and the first check valve, and the oil inlet of first check valve is separately connected
One end of counterbalance valve and the 5th hydraulic fluid port of 3 position-5 way solenoid valve；Second hydraulic fluid port connection liquid cylinder pressure of the 3 position-5 way solenoid valve
Rod chamber end；The third hydraulic fluid port of the 3 position-5 way solenoid valve connects fuel tank；4th hydraulic fluid port of the 3 position-5 way solenoid valve
Connect pressure control loop；The 5th hydraulic fluid port connection counterbalance valve one end of the 3 position-5 way solenoid valve, the counterbalance valve other end
Connect guide type sequence valve, the guide type sequence valve connect fuel tank, the left commutation and Speed changeover circuit and right commutation and
Speed changeover circuit structure is identical；
The pressure control loop includes the first plunger pump, the second plunger pump, first throttle valve, second throttle, second unidirectional
Valve, third check valve, the first overflow valve, the second overflow valve, two-position two-way solenoid valve and limit seam type oil filter, the limit gap type filter
Oily device is separately connected one end of the first plunger pump and the second plunger pump, and the other end of first plunger pump connects the first overflow
Valve, second check valve and first throttle valve are connected in parallel on mutually the 4th hydraulic fluid port and the first column of left commutation and Speed changeover circuit
Between plug pump；The other end of second plunger pump is separately connected the oil inlet and the second overflow valve of third check valve, and described
The oil outlet of three check valves is separately connected one end of the 4th hydraulic fluid port and second throttle of right commutation and Speed changeover circuit, described
The other end of second throttle connects the oil inlet of the second check valve, the second overflow valve other end and two-position two-way solenoid valve
One end connects, and the other end of the two-position two-way solenoid valve is connect with fuel tank, first overflow valve, the second overflow valve and limit gap
Formula oil filter is connect with fuel tank respectively.
2. a kind of dual sided porous drilling hydraulic system of modular machine tool according to claim 1, which is characterized in that described unidirectional
Stroke speed adjusting valve includes stroke valve, the 4th check valve and speed governing valve, and three is connected in parallel, the oil inlet of the 4th check valve
The rodless cavity end of connection liquid cylinder pressure, oil outlet connect the first hydraulic fluid port of 3 position-5 way solenoid valve.
3. a kind of dual sided porous drilling hydraulic system of modular machine tool according to claim 1, which is characterized in that described first
Plunger pump and the second plunger pump are respectively high pressure low discharge quantitative plunger pump and low-pressure high-flowrate quantitative plunger pump.
4. a kind of dual sided porous drilling hydraulic system of modular machine tool according to claim 1, which is characterized in that the left side,
Right slide unit hydraulic system is separately positioned on horizontal slide rail.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253130.1A CN106735394B (en) | 2016-12-30 | 2016-12-30 | A kind of dual sided porous drilling hydraulic system of modular machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253130.1A CN106735394B (en) | 2016-12-30 | 2016-12-30 | A kind of dual sided porous drilling hydraulic system of modular machine tool |
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| Publication Number | Publication Date |
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| CN106735394A CN106735394A (en) | 2017-05-31 |
| CN106735394B true CN106735394B (en) | 2018-09-21 |
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|---|---|---|---|---|
| CN111135980B (en) * | 2020-02-27 | 2024-05-24 | 江苏君安新材料科技有限公司 | Accurate thick hydraulic pressure roller coat device that scribbles |
| CN114346700B (en) * | 2022-01-17 | 2023-09-26 | 上海赛卡精密机械有限公司 | Intelligent numerical control machine ram hydraulic balance system and numerical control machine |
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| JP3410365B2 (en) * | 1998-06-05 | 2003-05-26 | 住友建機製造株式会社 | Hydraulic circuit of construction machinery that can use crusher etc. |
| CN102562692A (en) * | 2010-12-08 | 2012-07-11 | 西安众智惠泽光电科技有限公司 | Hydraulic control system for combined machine tool for drilling top hole in cylinder cover |
| CN102691681B (en) * | 2012-06-26 | 2015-03-25 | 重庆键英液压机电有限公司 | Three-point type bending machine hydraulic system with quick energy conservation |
| CN202851483U (en) * | 2012-10-19 | 2013-04-03 | 陈肯 | Lathe feed hydraulic system |
| CN202845831U (en) * | 2012-11-05 | 2013-04-03 | 陈相贤 | Hydraulic multi-axis boring mill |
| CN103821788A (en) * | 2012-11-19 | 2014-05-28 | 西安志越机电科技有限公司 | Hydraulic control system for boring machines special for travelling frames |
| CN203031283U (en) * | 2013-01-15 | 2013-07-03 | 广州大学 | Three-dimensional linkage power sliding table hydraulic control system |
| CN105545847B (en) * | 2016-02-26 | 2017-07-21 | 华侨大学 | crusher hydraulic control system |
| CN105665772A (en) * | 2016-03-03 | 2016-06-15 | 芜湖日升重型机床有限公司 | Three-dimensional digital controlled drill and hydraulic system thereof |
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