CN105545858B - A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder - Google Patents
A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder Download PDFInfo
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- CN105545858B CN105545858B CN201610075087.8A CN201610075087A CN105545858B CN 105545858 B CN105545858 B CN 105545858B CN 201610075087 A CN201610075087 A CN 201610075087A CN 105545858 B CN105545858 B CN 105545858B
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- gas
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- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
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- 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
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B2013/041—Valve members; Fluid interconnections therefor with two positions
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of special Pneumatic valve of pneumohydraulic pressure-cylinder, including flap, valve element and spacing copper billet；Flap includes matrix section and inner chamber section, and the inner chamber moved back and forth for valve element is offered in the section of inner chamber, and the top of inner chamber section offers the flap control stomata communicated with inner chamber, and the bottom of inner chamber section offers the flap work stomata communicated with inner chamber；Valve element includes upper piston, lower piston, and the effective active area of upper piston is less than the effective active area of lower piston, and upper piston is contacted with the inner wall sealing of inner chamber all the time in the course of work.The invention also discloses a kind of pneumohydraulic pressure-cylinder, including rear end cap and Pneumatic valve as described above, through hole is offered on rear end cap, the flap, valve element and spacing copper billet set gradually from top to bottom in through hole.Pneumatic valve in the present invention can brake opening after the liquid presses piston pole of pressurized cylinder touches workpiece, realize automatic conversion of the pressurized cylinder by F.F. precompressed stroke to reinforcement punching stroke, safe and reliable.
Description
Technical field
The present invention relates to a kind of pressurized cylinder, more particularly to a kind of special Pneumatic valve of solution-air pressurized cylinder and solution-air pressurized cylinder.
Background technology
Solution-air pressurized cylinder is widely used in pressing equipment etc. to be needed compared with the occasion of high thrust, and solution-air pressurized cylinder is built-in specially
It is the control unit for controlling pressurized cylinder by F.F. precompressed stroke to reinforcement punching stroke with Pneumatic valve.
Patent ZL200810019120.0 discloses a kind of Pneumatic valve, and it includes valve body, is slidably disposed on valve body
Valve element in inner chamber, respectively sealing coordinate the drive end bearing bracket and rear end cap at the two ends of valve body, in the two opposite side walls of valve body respectively
Fluid intake and outlet are offered, stomata is offered on drive end bearing bracket and rear end cap respectively, valve element has first end, the second end
And the close portion of closure can will be exported, first end, the second end and close portion mutually seal cooperation with the inwall of valve body respectively,
First paragraph not, valve body and drive end bearing bracket surround the first air chamber, the second end, valve body and rear end cap surround the second air chamber, close portion,
Two ends and valve body surround the 3rd air chamber, are sealed against each other between the first air chamber, the second air chamber and the 3rd air chamber, and the first air chamber passes through
Stomata on drive end bearing bracket is connected with reset gas circuit, and the second air chamber is connected by the stomata on rear end cap with control gas circuit, multiple
The pressure of gas keeps very fixed in the gas circuit of position, the area of the area less than the rear end face of the second end of the front end face of first end,
Entrance and exit mutually staggers in the axial direction of valve element, and when the valve is closed, close portion is blocked in outlet, entrance and the 3rd gas
Room is connected, and when valve opening, close portion gets out of the way exit, and the 3rd air chamber forms path with entrance, outlet, allows gas to enough
Flow through.There is following defect in this Pneumatic valve：1), service life is short, gas leakage；2) sealing ring, is not provided with, only by clearance seal,
It is difficult to dismantle, once go wrong being difficult maintenance, the service life of whole pressurized cylinder is substantially reduced, be that peace is buried in normal production
Full hidden danger；3), due to the limitation of solution-air pressurized cylinder special construction, the need for above-mentioned Pneumatic valve cannot meet solution-air pressurized cylinder.
Drawbacks described above is also existing Pneumatic valve common problem.
As can be seen here, prior art awaits further improving.
The content of the invention
The present invention is the weak point for avoiding above-mentioned prior art from existing, there is provided a kind of special gas control of solution-air pressurized cylinder
Valve and solution-air pressurized cylinder, the Pneumatic valve can be automatically opened up after pressurized cylinder working piston bar touches workpiece, realize pressurized cylinder
It is safe and reliable by the automatic conversion of F.F. precompressed stroke to reinforcement punching stroke.
The technical solution adopted in the present invention is：
A kind of special Pneumatic valve of solution-air pressurized cylinder, including flap, valve element and the spacing copper billet for setting gradually from top to bottom；
Flap includes matrix section and inner chamber section, and top and the matrix section of inner chamber section are connected, and the bottom of inner chamber section is open, is opened up in the section of inner chamber
There is the inner chamber moved back and forth for valve element, the top of inner chamber section offers the flap control stomata communicated with inner chamber, under the section of inner chamber
Portion offers the flap work stomata communicated with inner chamber；Valve element includes upper piston, lower piston and connects the piston of upper and lower piston
Bar, the effective active area of upper piston less than lower piston effective active area, in the course of work upper piston all the time with inner chamber
Inner wall sealing is contacted, the internal diameter of the external diameter more than inner chamber of lower piston.
Between the top end face of the upper piston and the inwall of inner chamber and between the bottom face of upper piston and the inwall of inner chamber
It is provided with Glais ring.
The central position of the bottom face of described matrix section is provided with the first positive stop lug boss, the top end face of the spacing copper billet
Central position be provided with the second positive stop lug boss.
The invention also discloses a kind of solution-air pressurized cylinder, including rear end cap and Pneumatic valve as described above, opened on rear end cap
It is provided with the through hole for installing flap, valve element and spacing copper billet, the flap, valve element and spacing copper billet are in through hole from upper
And under set gradually.
It is provided between described matrix section, the bottom at the middle part of inner chamber section and inner chamber section and the inwall of the through hole
O-ring seal.
O-ring seal is provided between the lower piston and the inwall of through hole.
O-ring seal is provided between the spacing copper billet and the inwall of through hole.
The external diameter of the external diameter more than inner chamber section of described matrix section, the through hole, the lower surface of matrix section and inner chamber section
Upper piston control chamber, flap control stomata and upper piston control chamber phase are cooperatively formed between the upper surface of the O-ring seal at middle part
It is logical；The upper surface of the O-ring seal of the lower surface and inner chamber pars infrasegmentalis of the O-ring seal in the middle part of the through hole, inner chamber section
Between cooperatively form flap chamber, flap work stomata is communicated with flap chamber；The O-ring seal of the through hole, inner chamber pars infrasegmentalis
Lower surface and the upper surface of lower piston between cooperatively form lower piston control chamber；The rear end cap is opened up successively from top to bottom
Have upper piston control stomata, cylinder stomata, source of the gas stomata and lower piston control stomata, wherein, upper piston control stomata with it is upper
Piston control chamber is communicated, and cylinder stomata is communicated with flap chamber, and source of the gas stomata is communicated with lower piston control chamber, lower piston control stomata
The gap between lower surface, the top end face of spacing copper billet with lower piston communicates.
The Pneumatic valve has two kinds of seats in the plane, respectively prepares seat in the plane and work seat in the plane, is to work seat in the plane from seat in the plane is prepared
The process phases of valve element, the backhaul stage for preparing that seat in the plane is valve element is returned back to from work seat in the plane；Prepare seat in the plane when, upper piston with it is interior
The inlet seal contact in chamber, lower piston is spacing by spacing copper billet, controls the gas of source of the gas to be controlled through upper piston control stomata, flap
Stomata passes to the top end face of upper piston, and outside atmosphere passes to the top end face of lower piston through source of the gas stomata, lower piston control chamber；Work
It is at piston motion to the first positive stop lug boss and spacing by the first positive stop lug boss during seat in the plane, flap work stomata by inner chamber, under
Piston control chamber is connected with source of the gas stomata, i.e., flap work stomata is communicated with outside atmosphere, under the bottom face of lower piston passes through
Piston control chamber, lower piston control stomata with control source of the gas be connected, while control source of the gas gas through upper piston control stomata,
Flap control stomata passes to the top end face of upper piston；During valve element backhaul, lower piston is connected by lower piston control chamber, source of the gas stomata
Outside atmosphere, upper piston connection control source of the gas, valve element backhaul is reciprocal with this.
The pressurized cylinder also include air-channel system, air-channel system include backhaul inlet channel, quick inlet channel, be pressurized into
Gas passage, control source of the gas, outside atmosphere, external two-position five-way valve and built-in Pneumatic valve as described above, Pneumatic valve is two
Position three-way valve；Wherein three interfaces of the two-position five-way valve by pipeline respectively with backhaul inlet channel, quick inlet channel
And control source of the gas is connected, remaining interface of two-position five-way valve is connected with outside atmosphere, and two-position five-way valve has two kinds of seats in the plane, a kind of
It is that control source of the gas is connected with backhaul inlet channel, while quick inlet channel is connected with outside atmosphere, another kind is control source of the gas
Connected with quick inlet channel, while backhaul inlet channel is connected with outside atmosphere；The interface of the two position three-way valve is by pipe
Road is communicated with quick inlet channel, super charge passage and outside atmosphere respectively, and two position three-way valve has two control ends, respectively
It is control I ends and control II ends, two position three-way valve has two kinds of seats in the plane, and one kind is that quick inlet channel connects with super charge passage
Logical, another kind is that super charge passage is connected with outside atmosphere, and quick inlet channel is by pipeline and the control I of two position three-way valve
End is connected, and backhaul inlet channel is connected by pipeline with the control II ends of two position three-way valve, and backhaul inlet channel and control II
One-way throttle valve is provided with pipeline between end.
By adopting the above-described technical solution, having the beneficial effect that acquired by the present invention：
1st, the Pneumatic valve in the present invention uses asymmetric spool design, when pressurized cylinder is in SBR, control source of the gas
Gas is connected by gas circuit with the piston end of valve element upper piston, and valve element is pushed into initial position.Pressurized cylinder is in F.F. precompressed
Because the liquid presses piston pole in cylinder body is fitted with fast speed row by gas push as workpiece during stroke, now working chamber content
Product becomes big, although working chamber is connected via gas circuit with the lower piston end of gas control valve core, but because working chamber volume becomes big, in it
Portion's pressure and not up to operating pressure, therefore Pneumatic valve lower piston end cannot be promoted to open.When pressurized cylinder is in reinforcement punching stroke,
Because liquid presses piston pole is fitted with workpiece, working chamber internal volume is fixed, thus when its internal pressure reach operating pressure, therefore i.e.
Make valve element upper piston remain unchanged to be connected with control source of the gas, but due to the asymmetric design of valve element, it can still stablize opens, and controls gas
Body reaches valve element lower piston end and pushes first positive stop lug boss of the valve element inside valve element upper piston end with flap via gas circuit
Fit, now Pneumatic valve is opened, working gas enters in the cylinder stomata of pressurized cylinder rear end cap via flap work stomata, work
Gas enters in the cylinder of pressurized cylinder, and pusher cylinder piston rod is pushed, so as to complete to be pressurized stroke.During pressurized cylinder backstroke,
The external air source hole of former working chamber connection is connected by external two-position five-way valve control with ambient atmosphere, now working chamber and valve element
The piston end of lower piston is connected with outside atmosphere, and backhaul working gas promotes liquid presses piston pole to be back to SBR row
Journey, cylinder piston rod is back to SBR stroke by spring control, the piston end connection control air pressure of valve element upper piston so as to
Promote valve element to return and prepare stroke.The present invention is sufficiently used force balance principle, due to the piston end and work of valve element lower piston
Make the fast air admission hole connection in chamber, the piston end of valve element upper piston is connected with control source of the gas all the time, so that the work of valve element is more steady
It is fixed, prevent liquid presses piston pole Pneumatic valve of not yet fit with workpiece from having already turned on, that is, avoid F.F. precompressed stroke and reinforcement punching press
The disorderly situation of stroke occurs.
2nd, the Pneumatic valve in the present invention can brake opening after the liquid presses piston pole of pressurized cylinder touches workpiece, realize
Pressurized cylinder by F.F. precompressed stroke to reinforcement punching stroke automatic conversion, safe and reliable, stability is high.
3rd, O-ring seals are provided with the flap of Pneumatic valve and spacing copper billet in the present invention, realize flap, spacing copper
Sealing between block and pressurized cylinder through hole, instead of conventional clearance seal form, is easily installed, repairs and experiment, it is to avoid
Because processing and installing reason to the damage caused by through hole.
4th, simple structure of the present invention, installation, maintenance is convenient, and cost of manufacture is relatively low, is suitable for large-scale promotion and application.
Brief description of the drawings
Fig. 1 is the structural representation of flap in the present invention.
Fig. 2 is the structural representation of valve element in the present invention.
Fig. 3 is the structural representation of spacing copper billet in the present invention.
Fig. 4 is the view that Pneumatic valve prepares under seat in the plane in the present invention.
Fig. 5 is the view under Pneumatic valve work seat in the plane in the present invention.
Fig. 6 is pressurized cylinder rear end cap and the relative position relation signal for preparing the Pneumatic valve under the state of seat in the plane in the present invention
Figure.
Fig. 7 is pressurized cylinder rear end cap and the relative position relation signal for working the Pneumatic valve under the state of seat in the plane in the present invention
Figure.
Fig. 8 is the air-channel system figure of pressurized cylinder in the present invention.
Wherein,
1st, matrix section 2, O-ring seals 3, the first positive stop lug boss 4, inner chamber 5, flap control stomata 6, flap work
Stomata 7, Glais ring 8, piston rod 9, inner chamber section 10, upper piston 11, lower piston 12, spacing copper billet 13, the second limit convex
Platform 14, rear end cap 15, upper piston control stomata 16, cylinder stomata 17, source of the gas stomata 18, lower piston control stomata 19,
Upper piston control chamber 20, flap chamber 21, lower piston control chamber 22, two-position five-way valve 23, one-way throttle valve 24, two three
Port valve 25, quick inlet channel 26, backhaul inlet channel 27, super charge passage
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the present invention is not limited to
These embodiments.
As shown in Figure 1 to Figure 3, a kind of special Pneumatic valve of solution-air pressurized cylinder, including set gradually from top to bottom flap,
Valve element and spacing copper billet 12；Flap includes matrix section 1 and inner chamber section 9, and top and the matrix section 1 of inner chamber section 9 are connected, inner chamber section 9
Bottom it is open, the inner chamber 4 moved back and forth for valve element is offered in inner chamber section 9, the top of inner chamber section 9 offers and the phase of inner chamber 4
Logical flap control stomata 5, the bottom of inner chamber section 9 offers the flap work stomata 6 communicated with inner chamber 4；Valve element includes upper work
The piston rod 8 of plug 10, lower piston 11 and the upper and lower piston of connection, the effective active area of upper piston 10 is less than lower piston 11
Effective active area, inner wall sealing of the upper piston 10 all the time with inner chamber 4 is contacted in the course of work, and the top end face of upper piston 10 with
Glais ring 7, lower piston 11 are provided between the inwall of inner chamber 4 and between the bottom face of upper piston 10 and the inwall of inner chamber 4
External diameter more than inner chamber 4 internal diameter；The central position of the bottom face of described matrix section 1 is provided with for being carried out to upper piston 10
The first spacing positive stop lug boss 3, the central position of the top end face of spacing copper billet 12 is provided with for limiting lower piston 11
Second positive stop lug boss 13 of position.
As shown in Figures 1 to 7, the invention also discloses a kind of solution-air pressurized cylinder, including rear end cap 14 and as described above
Pneumatic valve, offers the through hole for installing flap, valve element and spacing copper billet 12 on rear end cap 14, the flap, valve element and
Spacing copper billet 12 sets gradually from top to bottom in through hole；Under the middle part of described matrix section 1, inner chamber section 9 and inner chamber section 9
O-ring seal 2 is provided between the inwall of portion and the through hole, is set between the lower piston 11 and the inwall of through hole
There is O-ring seal 2, O-ring seal 2 is provided between the spacing copper billet 12 and the inwall of through hole.
The external diameter of the external diameter more than inner chamber section 9 of described matrix section 1, the through hole, the lower surface and inner chamber of matrix section 1
Upper piston control chamber 19, flap control stomata 6 and upper piston control are cooperatively formed between the upper surface of the O-ring seal 2 at the middle part of section 9
Chamber processed 19 communicates；The O-shaped sealing of the through hole, the lower surface of the O-ring seal 2 at the middle part of inner chamber section 9 and inner chamber 9 bottoms of section
Flap chamber 20 is cooperatively formed between the upper surface of circle 2, flap work stomata 6 is communicated with flap chamber 20；The through hole, inner chamber section
Lower piston control chamber 21 is cooperatively formed between the lower surface of the O-ring seal 2 of 9 bottoms and the upper surface of lower piston 11；It is described
Rear end cap 14 offers upper piston control stomata 15, cylinder stomata 16, source of the gas stomata 17 and lower piston control successively from top to bottom
Stomata processed 18, wherein, upper piston control stomata 15 is communicated with upper piston control chamber 19, and cylinder stomata 16 is communicated with flap chamber 20,
Source of the gas stomata 17 is communicated with lower piston control chamber 21, lower surface, the spacing copper billet 12 of lower piston control stomata 18 and lower piston 11
Top end face between gap communicate.
The Pneumatic valve has two kinds of seats in the plane, respectively prepares seat in the plane and work seat in the plane, is to work seat in the plane from seat in the plane is prepared
The process phases of valve element, the backhaul stage for preparing that seat in the plane is valve element is returned back to from work seat in the plane；As shown in fig. 6, when preparing seat in the plane,
Upper piston 10 is contacted with the inlet seal of inner chamber 4, and lower piston 11 is spacing by spacing copper billet 12, controls the gas of source of the gas through upper piston
Control stomata 15, flap control stomata 5 passes to the top end face of upper piston 10, and outside atmosphere is controlled through source of the gas stomata 17, lower piston
Chamber 21 passes to the top end face of lower piston 11；As shown in fig. 7, during work seat in the plane, upper piston 10 is moved at the first positive stop lug boss 3 simultaneously
Spacing by the first positive stop lug boss 3, flap work stomata 6 is connected by inner chamber 4, lower piston control chamber 21 with source of the gas stomata 17,
I.e. flap work stomata 6 is communicated with outside atmosphere, and the bottom face of lower piston 11 controls gas by lower piston control chamber 21, lower piston
Hole 18 is connected with control source of the gas, while controlling the gas of source of the gas to be passed to through upper piston control stomata 15, flap control stomata 5
The top end face of piston 10；During valve element backhaul, lower piston 11 connects outside atmosphere by lower piston control chamber 21, source of the gas stomata 17,
The connection control source of the gas of upper piston 10, valve element backhaul is reciprocal with this.
Pressurized cylinder be in F.F. precompressed stroke when due to the liquid presses piston pole in cylinder body by gas push with fast speed row
As for workpiece laminating, now working chamber internal volume change is big, although working chamber connects via gas circuit with the lower piston 11 of gas control valve core
It is logical, but because working chamber volume becomes big, its internal pressure and not up to operating pressure, therefore Pneumatic valve lower piston end cannot be promoted to beat
Open.When pressurized cylinder is in reinforcement punching stroke, because liquid presses piston pole is fitted with workpiece, working chamber internal volume is fixed, therefore
When its internal pressure reach operating pressure, even if therefore valve element upper piston 10 still connected with control source of the gas, it is but non-due to valve element
Symmetric design, it can still stablize opens, and control gas reaches valve element lower piston end and pushes valve element until valve element via gas circuit
Upper piston end is fitted with the first positive stop lug boss 3 inside flap, and now Pneumatic valve is opened, and working gas is via flap work stomata
In the 6 cylinder stomatas 16 for entering pressurized cylinder rear end cap, working gas enters in the cylinder of pressurized cylinder, under pusher cylinder piston rod
Pressure, so as to complete to be pressurized stroke.During pressurized cylinder backstroke, the external air source hole of former working chamber connection is by external two-position five-way
The control of valve 22 is connected with ambient atmosphere, and now the piston end of working chamber and valve element lower piston 11 is connected with outside atmosphere, and is returned
Journey working gas promotes liquid presses piston pole to be back to SBR stroke, and cylinder piston rod is back to SBR by spring control
Stroke, the piston end connection control air pressure of valve element upper piston 10 prepares stroke so as to promote valve element to return.
The pressurized cylinder also includes air-channel system, and air-channel system is mainly completion and quickly presses close to workpiece stroke, Pneumatic valve guarantor
Pressure and punching press finish after quick return, its combining form can have various, now provide a kind of following embodiments：
As shown in figure 8, air-channel system includes backhaul inlet channel 26, quick inlet channel 25, super charge passage 27, control
Source of the gas processed, outside atmosphere, external two-position five-way valve 22 and built-in Pneumatic valve as described above, Pneumatic valve is two position three-way valve
24；Wherein three interfaces of the two-position five-way valve 22 by pipeline respectively with backhaul inlet channel 26, quick inlet channel 25
And control source of the gas is connected, remaining interface of two-position five-way valve 22 is connected with outside atmosphere, and two-position five-way valve 22 has two kinds of seats in the plane,
One kind is that control source of the gas is connected with backhaul inlet channel 26, while quick inlet channel 25 is connected with outside atmosphere, another kind is
Control source of the gas is connected with quick inlet channel 25, while backhaul inlet channel 26 is connected with outside atmosphere；The two position three-way valve
24 interface is communicated with quick inlet channel 25, super charge passage 27 and outside atmosphere respectively by pipeline, two-position three way
Valve 24 has two control ends, respectively controls I ends and control II ends, and two position three-way valve 24 has two kinds of seats in the plane, and one kind is quickly to enter
Gas passage 25 is connected with super charge passage 27, and another kind is that super charge passage 27 is connected with outside atmosphere, and quick air inlet is led to
Road 25 is connected by pipeline with the control I ends of two position three-way valve 24, and backhaul inlet channel 26 is by pipeline and two position three-way valve 24
Control II ends be connected, and be provided with one-way throttle valve 23 on pipeline between backhaul inlet channel 26 and control II ends, unidirectionally
The pressure at the control II ends for being disposed to keep two position three-way valve 24 of choke valve 23, work is adjacent to when liquid presses piston pole is fast-forward to
During part, gas pressure will quickly level off to bleed pressure in working chamber, and gas passes through the control I that pipeline reaches two position three-way valve 24
End, now the two ends of two position three-way valve 24 are all bleed pressure, because the end area at control I ends i.e. upper piston end is less than control
II ends i.e. the end area at lower piston end, so when two position three-way valve 24 open.
Job step of the invention is：
1) stroke, is prepared：The seat in the plane of two-position five-way valve 22 is that control source of the gas is connected and quickly with backhaul inlet channel 26
Inlet channel 25 is connected with outside atmosphere, and control source gas enter backhaul inlet channel 26 by two-position five-way valve 22, by liquid
Pressure piston rod stabilization is in initial position.The gas in backhaul inlet channel 26 enters the control of two position three-way valve 24 by gas circuit simultaneously
II end (i.e. upper piston end) is made, super charge passage 27 is connected with outside atmosphere.Now the seat in the plane of two position three-way valve 24 is just
Beginning position, that is, prepare seat in the plane, such as Fig. 4.
2), F.F. stroke：The seat in the plane of two-position five-way valve 22 is that control source of the gas is connected and backhaul with quick inlet channel 25
Inlet channel 26 is connected with outside atmosphere, and control source gas promote liquid presses piston pole until contacting parts to be processed, while soon
Gas in fast inlet channel 25 reaches the control I ends (i.e. lower piston end) of built-in two position three-way valve 24 by pipeline, but now
Because liquid presses piston pole working chamber is constantly increasing, internal pressure and not up to operating pressure, so when Pneumatic valve lower piston end
Gas pressure do not promote the seat in the plane of valve element, two position three-way valve 24 to remain initial position, that is, prepare seat in the plane, such as Fig. 4.
3), reinforcement stroke；After liquid presses piston pole touches processing part, working cylinder cavity internal volume is constant, air pressure inside
Level off to source of the gas air pressure quickly, the now switching of two position three-way valve 24 seat in the plane, quick inlet channel 25 connects with super charge passage 27
Logical, the gas in quick inlet channel 25 enters super charge passage 27, and supercharge cylinders piston rod is pushed to reach supercharging
Purpose.Now the seat in the plane of two position three-way valve 24 is open position, that is, work seat in the plane, such as Fig. 5.
4), backstroke：Super charge passage 27 is connected with outside atmosphere, and control source of the gas is connected with backhaul inlet channel 26
And quick inlet channel 25 is connected with outside atmosphere, and control source gas enter from backhaul inlet channel 26 and make liquid presses piston pole
Initial position is returned to, back-moving spring makes pressurized cylinder piston return to initial position.Now the seat in the plane of two position three-way valve 24 is initial
Position, that is, prepare seat in the plane, such as Fig. 4.
The part do not addressed in the present invention uses or uses for reference prior art to be capable of achieving.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property.
Specific embodiment described herein is only to spiritual example explanation of the invention.Belonging to of the invention
Those skilled in the art can make various modifications or supplement to described specific embodiment or use what is be similar to
Mode is substituted, but without departing from spirit of the invention or surmounts scope defined in appended claims.
Claims (5)
1. a kind of solution-air pressurized cylinder, it is characterised in that including rear end cap and the special Pneumatic valve of solution-air pressurized cylinder, the solution-air
The special Pneumatic valve of pressurized cylinder includes the flap, valve element and the spacing copper billet that set gradually from top to bottom；Flap include matrix section and it is interior
Chamber section, top and the matrix section of inner chamber section are connected, and the bottom of inner chamber section is open, offers what is moved back and forth for valve element in the section of inner chamber
Inner chamber, the top of inner chamber section offers the flap control stomata communicated with inner chamber, and the bottom of inner chamber section offers and communicated with inner chamber
Flap work stomata；Valve element includes upper piston, lower piston and connects the piston rod of upper and lower piston, effective work of upper piston
Effective active area with area less than lower piston, upper piston is contacted with the inner wall sealing of inner chamber all the time in the course of work, lower work
Internal diameter of the external diameter of plug more than inner chamber；The central position of the bottom face of described matrix section is provided with the first positive stop lug boss, described
The central position of the top end face of spacing copper billet is provided with the second positive stop lug boss；Offered on rear end cap for installing flap, valve
The through hole of core and spacing copper billet, the flap, valve element and spacing copper billet set gradually from top to bottom in through hole；The base
O-ring seal is provided between body section, the bottom at the middle part of inner chamber section and inner chamber section and the inwall of the through hole；It is described
The external diameter of the external diameter more than inner chamber section of matrix section, the O-shaped sealing in the middle part of the through hole, the lower surface of matrix section and inner chamber section
Upper piston control chamber is cooperatively formed between the upper surface of circle, flap control stomata is communicated with upper piston control chamber；The through hole,
Valve is cooperatively formed between the upper surface of the O-ring seal of the lower surface and inner chamber pars infrasegmentalis of the O-ring seal in the middle part of the section of inner chamber
Valve chamber, flap work stomata is communicated with flap chamber；The through hole, the lower surface of the O-ring seal of inner chamber pars infrasegmentalis and under
Lower piston control chamber is cooperatively formed between the upper surface of piston；The rear end cap offers upper piston control gas successively from top to bottom
Hole, cylinder stomata, source of the gas stomata and lower piston control stomata, wherein, upper piston control stomata is communicated with upper piston control chamber,
Cylinder stomata is communicated with flap chamber, and source of the gas stomata is communicated with lower piston control chamber, the lower end of lower piston control stomata and lower piston
Gap between face, the top end face of spacing copper billet communicates.
2. a kind of solution-air pressurized cylinder according to claim 1, it is characterised in that the inwall of the lower piston and through hole
Between be provided with O-ring seal.
3. a kind of solution-air pressurized cylinder according to claim 1, it is characterised in that the spacing copper billet is interior with through hole
O-ring seal is provided between wall.
4. a kind of solution-air pressurized cylinder according to claim 1, it is characterised in that the Pneumatic valve has two kinds of seats in the plane, respectively
Be defined standby host position and work seat in the plane, from the process phases that seat in the plane is valve element to work seat in the plane are prepared, standard is returned back to from work seat in the plane
Standby host position is the backhaul stage of valve element；When preparing seat in the plane, upper piston is contacted with the inlet seal of inner chamber, and lower piston is by spacing copper billet
It is spacing, control the gas of source of the gas to control stomata to pass to the top end face of upper piston, outside atmosphere warp through upper piston control stomata, flap
Source of the gas stomata, lower piston control chamber pass to the top end face of lower piston；During work seat in the plane, at piston motion to the first positive stop lug boss
And it is spacing by the first positive stop lug boss, flap work stomata is connected by inner chamber, lower piston control chamber with source of the gas stomata, i.e. flap
Work stomata is communicated with outside atmosphere, and the bottom face of lower piston controls stomata with control gas by lower piston control chamber, lower piston
Source is connected, while controlling the gas of source of the gas to control stomata to pass to the top end face of upper piston through upper piston control stomata, flap；Valve
During core backhaul, lower piston connects outside atmosphere, upper piston connection control source of the gas, valve element by lower piston control chamber, source of the gas stomata
Backhaul, it is reciprocal with this.
5. a kind of solution-air pressurized cylinder according to claim 4, it is characterised in that the pressurized cylinder also includes air-channel system,
Air-channel system includes backhaul inlet channel, quick inlet channel, super charge passage, control source of the gas, outside atmosphere, external two
Position five-way valve and built-in Pneumatic valve as described above, Pneumatic valve is two position three-way valve；Wherein three of the two-position five-way valve
Interface by pipeline respectively with backhaul inlet channel, quick inlet channel and control source of the gas connect, two-position five-way valve remaining
Interface is connected with outside atmosphere, and two-position five-way valve has two kinds of seats in the plane, and one kind is that control source of the gas is connected with backhaul inlet channel, while
Quick inlet channel is connected with outside atmosphere, and another kind is that control source of the gas is connected with quick inlet channel, while backhaul air inlet is logical
Road is connected with outside atmosphere；The interface of the two position three-way valve by pipeline respectively with quick inlet channel, super charge passage
And outside atmosphere is communicated, two position three-way valve has two control ends, respectively controls I ends and control II ends, and two position three-way valve has
Two kinds of seats in the plane, one kind is quick inlet channel and super charge channel connection, and another kind is super charge passage and outside atmosphere
Connection, quick inlet channel is connected by pipeline with the control I ends of two position three-way valve, and backhaul inlet channel passes through pipeline and two
The control II ends of triple valve are connected, and are provided with one-way throttle valve on pipeline between backhaul inlet channel and control II ends.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075087.8A CN105545858B (en) | 2016-02-03 | 2016-02-03 | A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder |
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| CN201610075087.8A CN105545858B (en) | 2016-02-03 | 2016-02-03 | A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder |
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| CN106142654A (en) * | 2016-08-29 | 2016-11-23 | 荣成市华东锻压机床有限公司 | Press machine clutch moment of torsion spool control valve |
| CN110608157B (en) * | 2018-06-15 | 2024-05-24 | 上海城投污水处理有限公司 | Control device of pneumatic diaphragm pump |
| CN110947812A (en) * | 2018-09-26 | 2020-04-03 | 精工电子有限公司 | Cylinder device, method of operating cylinder device, press device, workpiece clamping device, method of pressing workpiece, and method of clamping workpiece |
| WO2023243703A1 (en) * | 2022-06-17 | 2023-12-21 | イーグル工業株式会社 | Pressure applying device |
| WO2023243704A1 (en) * | 2022-06-17 | 2023-12-21 | イーグル工業株式会社 | Pressurization device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3508125B2 (en) * | 1999-03-29 | 2004-03-22 | 日本製紙株式会社 | Pressure booster |
| CN100567782C (en) * | 2008-01-10 | 2009-12-09 | 江苏万工科技集团有限公司 | Pneumatic control valve |
| JP5939950B2 (en) * | 2012-10-01 | 2016-06-22 | 株式会社コスメック | Cylinder device with booster mechanism |
| CN104179733B (en) * | 2014-08-13 | 2016-09-07 | 合肥长源液压股份有限公司 | Single-shot booster |
| CN104314912A (en) * | 2014-08-25 | 2015-01-28 | 南车株洲电力机车有限公司 | Gas-liquid pressure cylinder |
| CN204300019U (en) * | 2014-11-24 | 2015-04-29 | 肖宇 | Pneumohydraulic pressure-cylinder |
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