CN105952698A - Gas-liquid pressurized cylinder - Google Patents

Gas-liquid pressurized cylinder Download PDF

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Publication number
CN105952698A
CN105952698A CN201610440098.1A CN201610440098A CN105952698A CN 105952698 A CN105952698 A CN 105952698A CN 201610440098 A CN201610440098 A CN 201610440098A CN 105952698 A CN105952698 A CN 105952698A
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CN
China
Prior art keywords
cylinder
cover
inlet channel
pressure
solution
Prior art date
Application number
CN201610440098.1A
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Chinese (zh)
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CN105952698B (en
Inventor
盖超会
张红卫
何琼
Original Assignee
武汉软件工程职业学院
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Priority to CN201610440098.1A priority Critical patent/CN105952698B/en
Publication of CN105952698A publication Critical patent/CN105952698A/en
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Publication of CN105952698B publication Critical patent/CN105952698B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B3/00Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1457Piston rods
    • F15B15/1461Piston rod sealings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices
    • F15B15/22Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke

Abstract

The invention discloses a gas-liquid pressurized cylinder comprising a front end cover, a working cylinder body, a hydraulic cylinder body, a middle oil injection cover, an air cylinder body and a rear end cover which are sequentially connected in a sealing way, wherein the front end cover is provided with a return air inlet channel; the rear end cover is provided with a pressurized air inlet channel communicating with the air cylinder body; a pressurized piston rod is arranged in the air cylinder body and is sleeved by a reset spring; the hydraulic cylinder body is provided with a quick air inlet channel; the hydraulic cylinder body comprises a plurality of hydraulic cylinder body units; a middle buffering cover is arranged between the hydraulic cylinder body units; through holes matched with the pressurized piston rod are formed in the middle oil injection cover and the middle buffering cover; and the insides of the through holes are sleeved by hydraulic sealing rings. Due to the adoption of multiple sealing, the pressure difference of liquids at two sides of sealing rings in the middle buffering cover in the stamping process is effectively reduced, the sealing rings are enabled to be more durable, and other sealing rings can be used even if one of the sealing rings is invalid, so that the service time of the whole pressurized cylinder is prolonged, and the stability of the pressurized cylinder is improved.

Description

A kind of solution-air pressurized cylinder
Technical field
The present invention relates to a kind of solution-air pressurized cylinder.
Background technology
Solution-air pressurized cylinder is widely used in the occasion that pressing equipment etc. needs relatively high thrust, the work process one of solution-air pressurized cylinder As for precompressed, supercharging and backhaul, owing to the structure of airdraulic actuator limits, existing solution-air pressurized cylinder generally there are problems with: 1) Service life is short, leakage of oil;2) along with using time lengthening, stamping press is unstable;3) use between highly pressurised liquid and low pressure liquid Single sealing ring seals, and load is excessive.
Simultaneously as the universal urgent needs of factory improves pressurized cylinder work efficiency and blindly increases work bleed pressure, so can make Cylinder inner seal ring bears excessive loads, easily occurs that leakage of oil, working piston bar get the failure problems such as unable, greatly after long-term work Shorten greatly the service life of whole pressurized cylinder, bury potential safety hazard for normal production.
Summary of the invention
The technical problem to be solved in the present invention is, in view of the foregoing defects the prior art has, it is provided that a kind of solution-air pressurized cylinder, Have employed multi-sealed, effectively reduce the pressure differential buffering middle cover inner seal ring both sides liquid in punching course, make sealing ring more Durable, even if one of them sealing ring lost efficacy, also have other sealing rings, extend the use time of overall pressurized cylinder, increase it steady Qualitative.
The present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of solution-air pressurized cylinder, including the drive end bearing bracket being tightly connected successively, working cylinder cylinder body, hydraulic cylinder body, oiling middle cover, Cylinder block and rear end cap, drive end bearing bracket is provided with backhaul inlet channel, and rear end cap is provided with the super charge connected with cylinder block Passage, is provided with in cylinder block on charged piston bar charged piston bar and is arranged with back-moving spring, is provided with work and lives in working cylinder cylinder body Stopper rod, working piston bar one end seals with hydraulic cylinder body and coordinates, the other end hermetically passing drive end bearing bracket of working piston bar, hydraulic pressure Cylinder cylinder body is provided with quick inlet channel, and described hydraulic cylinder body includes multiple hydraulic cylinder unit, each hydraulic cylinder unit it Between be provided with buffering middle cover, be provided with, in oiling middle cover and buffering middle cover, the through hole coordinated with charged piston bar, in through hole, be arranged with hydraulic pressure Sealing ring.
Connecing technique scheme, described hydraulic cylinder unit number is 2, and a hydraulic cylinder unit is high-pressure and hydraulic cylinder body, Another hydraulic cylinder unit is middle pressure cylinder body, and one end of high-pressure and hydraulic cylinder body is connected with working cylinder cylinder body, high pressure liquid cylinder pressure The other end of body is connected with buffering middle cover, and one end of middle pressure cylinder body is connected with buffering middle cover, the other end of middle pressure cylinder body It is connected with pneumatic cylinder cylinder body.
Connecing technique scheme, the sidewall of buffering middle cover is provided with the first buffer channel, is provided with first unidirectional in the first buffer channel Valve, liquid therefrom can flow to high-pressure and hydraulic cylinder body by pressure cylinder body, reversely end.
Connecing technique scheme, the sidewall of oiling middle cover is provided with the second buffer channel, is provided with the second check valve in buffer channel, Liquid can flow to hydraulic cylinder body direction stream from cylinder block direction, reversely ends.
Connect technique scheme, the outer wall of oiling middle cover is additionally provided with feed pathway, the outlet of feed pathway and the second buffer channel Connection, passage choke-out after oiling.
Connect technique scheme, be provided with in cylinder block solution-air conversion middle cover, charged piston bar through solution-air change middle cover, gas- The hydraulic oil being stamped in hydraulic cylinder body in liquid conversion is spacing with back-moving spring, slides in being placed on cylinder block in solution-air conversion.
Connecing technique scheme, the described working piston bar end face near rear end cap side is provided with cavity, and described cavity is just to increasing Pressure piston rod, the charged piston bar of extension during for accommodating supercharging, described working piston bar is provided with flange, piston rod upper flange Both sides be cased with the rubber cushion that coordinates with working cylinder cylinder body respectively.
Connecing technique scheme, described solution-air pressurized cylinder is provided with the air-channel system including two-position five-way valve and two position three-way valve, institute Three interfaces stating two-position five-way valve are connected with backhaul inlet channel, quick inlet channel and source of the gas respectively by pipeline, two Remaining interface of five-way valve and atmosphere, described two-position five-way valve has two kinds of seats in the plane, and one is that source of the gas connects with backhaul inlet channel Logical and quick inlet channel and atmosphere, another kind is that source of the gas connects with quick inlet channel and backhaul inlet channel is with big Gas connects;The interface of described two position three-way valve by pipeline respectively with quick inlet channel, super charge passage and atmosphere, Described two position three-way valve has two kinds of seats in the plane, and one is quick inlet channel and super charge channel connection, and another kind is super charge Passage and atmosphere, backhaul inlet channel and quick inlet channel are connected with the control end of two position three-way valve respectively by pipeline, The pipeline that described backhaul inlet channel is connected with the control end of two position three-way valve is provided with one-way throttle valve.
The method have the advantages that
1, in pressurization, gas push charged piston bar advance, charged piston bar pass sequentially through oiling middle cover inner seal ring and Sealing ring in buffering middle cover, the punching press thus the piston rod that pushes the work forward has moved on, have employed multi-sealed, effectively reduce Punching course buffers the pressure differential of middle cover inner seal ring both sides liquid, makes sealing ring more robust, though one of them sealing ring Lost efficacy, and also had other sealing rings, and the sealing ring in oiling middle cover plays sealing safety effect, even if in all buffering middle covers Sealing ring lost efficacy, and pressurized cylinder still can guarantee that normal pressure exports, and normally works, thus extended the use time of overall pressurized cylinder, Increase its stability.
2, by the first check valve and the setting of the second check valve, prevent charged piston bar backhaul too fast and cause in hydraulic cylinder body Liquid produces negative pressure thus the sealing ring in buffering middle cover and the sealing ring in oiling middle cover is caused damage, and now liquid is through unidirectional Valve flows to drive end bearing bracket direction from rear end cap.
3, working piston bar is slowly touched in workpiece fabrication by gas push, and solution-air conversion middle cover is lived with work by liquid-driving Stopper rod is pushed ahead together, and now charged piston bar is pressed down, effectively prevent the negative pressure produced because of volume enlargement, knot Structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of solution-air pressurized cylinder in the embodiment of the present invention;
Fig. 2 is the partial enlarged drawing of K in Fig. 1;
Fig. 3 is the partial enlarged drawing of M in Fig. 1;
Fig. 4 is the gas circuit simplification figure in the embodiment of the present invention;
In figure, 1-backhaul inlet channel, 2-feed pathway, 3-super charge passage, 4-rear end cap, 5-charged piston bar, 6-gas Cylinder cylinder body, 7-back-moving spring, 8-solution-air conversion middle cover, 9-oiling middle cover, pressure cylinder body in 10-, 11-buffers middle cover, 12- Working piston bar, 13-high-pressure and hydraulic cylinder body, 14-working cylinder cylinder body, 15-drive end bearing bracket, 16-rubber cushion, 17-the first hydraulic sealing ring, 18-the first check valve, 19-the second hydraulic sealing ring, 20-the second check valve, 21-two-position five-way valve, 22-two position three-way valve, 23- One-way throttle valve, the quick inlet channel of 24-, 25-the first buffer channel, 26-the second buffer channel.
Detailed description of the invention
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1~Fig. 3, the solution-air pressurized cylinder in the embodiment that the present invention provides, before being tightly connected successively End cap 15, working cylinder cylinder body 14, hydraulic cylinder body, oiling middle cover 9, cylinder block 6 and rear end cap 4, drive end bearing bracket 15 sets There are backhaul inlet channel 1, rear end cap 4 to be provided with the super charge passage 3 connected with cylinder block 6, are provided with in cylinder block 6 Charged piston bar 5, charged piston bar 5 is arranged with back-moving spring 7, is provided with working piston bar 12, work in working cylinder cylinder body 14 Make piston rod 12 one end to coordinate with hydraulic cylinder body sealing, the other end hermetically passing drive end bearing bracket 15 of working piston bar 12, hydraulic pressure Cylinder cylinder body is provided with quick inlet channel 24, it is characterised in that described hydraulic cylinder body includes multiple hydraulic cylinder unit, each It is provided with buffering middle cover 11 between hydraulic cylinder unit, is provided with, in buffering middle cover 11, the first through hole coordinated with charged piston bar 5, It is arranged with the first hydraulic sealing ring 17 in first through hole, in oiling middle cover 9, is provided with the second through hole coordinated with charged piston bar 5, The second hydraulic sealing ring 19 it is arranged with in second through hole;In pressurization, gas push charged piston bar 5 advances, and supercharging is lived Stopper rod 5 passes sequentially through the sealing ring in oiling middle cover 9 inner seal ring and buffering middle cover 11, thus the piston rod 12 that pushes the work forward continues Continuous advance completes punching press, have employed multi-sealed, effectively reduces and buffers middle cover 11 inner seal ring both sides liquid in punching course Pressure differential, makes sealing ring more robust, even if one of them sealing ring lost efficacy, also has other sealing rings, and in oiling middle cover 9 Sealing ring plays sealing safety effect, even if the sealing ring in all buffering middle covers 11 lost efficacy, pressurized cylinder still can guarantee that positive normal pressure Power exports, and normally works, thus extends the use time of overall pressurized cylinder, increases its stability.
Further, described hydraulic cylinder unit number is 2, and a hydraulic cylinder unit is high-pressure and hydraulic cylinder body 13, another Individual hydraulic cylinder unit is middle pressure cylinder body 10, and one end of high-pressure and hydraulic cylinder body 13 is connected with working cylinder cylinder body 14, high pressure liquid The other end of cylinder pressure body 13 is connected with buffering middle cover 11, and one end of middle pressure cylinder body 10 is connected with buffering middle cover 11, middle pressure The other end of hydraulic cylinder 10 is connected with pneumatic cylinder cylinder body;In pressurization, gas push charged piston bar 5 advances, supercharging Piston rod 5 first passes through oiling middle cover 9 inner seal ring and reaches middle pressure cylinder body 10, then by buffering middle cover 11 inner seal ring Reach high-pressure and hydraulic cylinder body 13, the punching press thus the piston rod 12 that pushes the work forward has moved on, have employed dual-seal, effectively Reduce the pressure differential buffering middle cover 11 inner seal ring both sides liquid in punching course, make sealing ring more robust, even if during because using Between long and cause the sealing ring buffering in middle cover 11 to lose efficacy, be now equivalent to high-pressure and hydraulic cylinder body 13 and middle pressure cylinder body 10 All the time UNICOM, and oiling middle cover 9 inner seal ring plays dual-seal safety effect, even if buffering middle cover 11 inner seal ring lost efficacy, Pressurized cylinder still can guarantee that normal pressure exports, and normally works, thus extends the use time of overall pressurized cylinder, increases it stable Property.
Further, as in figure 2 it is shown, the sidewall of buffering middle cover 11 is provided with the first buffer channel 25, the first buffer channel 25 Inside being provided with the first check valve 18, liquid can therefrom flow to high-pressure and hydraulic cylinder body 13 by pressure cylinder body 10, reversely ends;When Working piston bar 12 arrives operating position, and charged piston bar 5 prevents highly pressurised liquid to middle hydraulic fluid when entering high-pressure and hydraulic cylinder body 13 Cylinder pressure body 10 leaks;In return stroke, the first check valve 18 is closed, and back-moving spring 7 promotes charged piston bar 5 quickly to return In situ, prevent charged piston bar 5 backhaul too fast and cause liquid in high-pressure and hydraulic cylinder body 13 to produce negative pressure thus to buffering middle cover 11 inner seal rings cause damage, and now liquid flows to high-pressure and hydraulic cylinder body 13 through check valve therefrom pressure cylinder body 10.
Further, as it is shown on figure 3, the sidewall of oiling middle cover 9 is provided with the second buffer channel 26, in buffer channel, it is provided with Two check valves 20, liquid can flow to hydraulic cylinder body direction stream, reversely end from cylinder block 6 direction;When working piston bar 12 arrive operating position, and charged piston bar 5 prevents highly pressurised liquid from leaking to solution-air conversion middle cover 8 when entering hydraulic cylinder body, In return stroke, the second check valve 20 is closed, and back-moving spring 7 promotes charged piston bar 5 quickly to return in situ, for preventing supercharging Piston rod 5 backhaul is too fast and cause liquid in hydraulic cylinder body to produce negative pressure thus oiling middle cover 9 inner seal ring causes damage, Now liquid flows to hydraulic cylinder body through check valve from solution-air conversion middle cover 8.
Further, the outer wall of oiling middle cover 9 is additionally provided with feed pathway 2, the outlet of feed pathway 2 and the second buffer channel 26 connections, feed pathway 2 is for oiling venting, passage choke-out after oiling.
Further, being provided with solution-air conversion middle cover 8 in cylinder block 6, charged piston bar 5 changes middle cover 8, gas through solution-air -liquid conversion middle cover 8 has the hydraulic oil in hydraulic cylinder body spacing with back-moving spring 7, and solution-air conversion middle cover 8 is in cylinder block 6 Interior slip;Working piston bar 12 is slowly touched in workpiece fabrication by gas push, solution-air conversion middle cover 8 by liquid-driving with Working piston bar 12 is pushed ahead together, and now charged piston bar 5 is pressed down, effectively prevent and produces because of volume enlargement Negative pressure, simple in construction, easy to operate.
Further, the described working piston bar 12 end face near rear end cap 4 side is provided with cavity, and described cavity is just to supercharging Piston rod 5, the charged piston bar 5 of extension during for accommodating supercharging, described working piston bar 12 is provided with flange, on piston rod The both sides of flange are cased with the rubber cushion 16 coordinated with working cylinder cylinder body 14 respectively.
Further, as shown in Figure 4, described solution-air pressurized cylinder is provided with and includes two-position five-way valve 21 and two position three-way valve 22 Air-channel system, three interfaces of described two-position five-way valve 21 by pipeline respectively with backhaul inlet channel 1, quick inlet channel 24 And source of the gas connection, remaining interface of two-position five-way valve 21 and atmosphere, described two-position five-way valve 21 has two kinds of seats in the plane, and one Kind being that source of the gas connects with backhaul inlet channel 1 and quickly inlet channel 24 and atmosphere, another kind is source of the gas and quick air inlet Passage 24 connects and backhaul inlet channel 1 and atmosphere;The interface of described two position three-way valve 22 by pipeline respectively with soon Speed inlet channel 24, super charge passage 3 and atmosphere, described two position three-way valve 22 has two kinds of seats in the plane, and one is fast Speed inlet channel 24 connects with super charge passage 3, and another kind is super charge passage 3 and atmosphere, backhaul inlet channel 1 and quickly inlet channel 24 be connected with the control end of two position three-way valve 22 respectively by pipeline.
Further, the pipeline that described backhaul inlet channel 1 is connected with the control end of two position three-way valve 22 is provided with one-way throttle valve 23。
The operation principle of the present invention:
During working piston bar 12 F.F., owing to quick inlet channel 24 is located at the sidewall of high-pressure and hydraulic cylinder body 13, high pressure liquid The inwall of cylinder pressure body 13 is sealed, so when quick inlet channel 24 is inflated, source of the gas can directly push away by working piston bar 12 Starting building to make piston rod 12 extension until contact workpiece to be processed, then two position three-way valve 22 is opened, and 5 times pressures of charged piston bar depend on Secondary reach high-pressure and hydraulic cylinder body 13 by oiling middle cover 9, middle pressure cylinder body 10, buffering middle cover 11, thus reach supercharging mesh The highly pressurised liquid piston rod 12 that pushes the work forward that makes complete punching press, the supercharging mode of the present invention is the most quickly but also steady;In pressurization, Super charge hole 3 air inlet in rear end cap 4 also promotes charged piston bar 5 to travel forward, in the case of uniform pressure, and supercharging The exportable gas push pressure being several times as much as entering from super charge passage 3 of piston rod 5, by promoting highly pressurised liquid to push away smoothly Starting building to make piston rod 12, thus reach pressurized effect, meanwhile, back-moving spring 7 has the effect making charged piston bar 5 reset; Present configuration is simple, easy to operate, arranges dual-seal insurance, effectively extends pressurized cylinder service life, as it is shown in figure 1, In the present embodiment, it is provided with oiling middle cover 9 between described cylinder block 6 and middle pressure cylinder body 10, oiling middle cover 9 is provided with Second check valve 20, liquid can flow to middle pressure cylinder body 10 direction C from cylinder block 6 direction D, reversely end, Being provided with feed pathway 2E in described oiling middle cover 9, passage choke-out after oiling, between described oiling middle cover 9 and buffering middle cover 11 It is provided with middle pressure cylinder body 10, between medium pressure hydraulic cylinder 10 and high-pressure and hydraulic cylinder body 13, is provided with buffering middle cover 11, buffering Being provided with dashpot check valve 18 in middle cover 11, liquid therefrom can flow to high-pressure and hydraulic cylinder body 13 side by pressure cylinder body 10 direction B To A, reversely ending, described solution-air conversion middle cover 8 is spacing by liquid and the back-moving spring 7 that is connected with booster rod 5, described gas -liquid conversion middle cover 8 slides in cylinder block 6.
It is fast that the air-channel system of the present invention mainly completes quickly to press close to after workpiece stroke, two position three-way valve 22 pressurize and punching press Speed backhaul, a combination thereof form can have a variety of, provides now following a kind of embodiment:
As shown in Figure 4, described air-channel system includes two-position five-way valve 21 and two position three-way valve 22, described two-position five-way valve 21 Three interfaces are connected with backhaul inlet channel 1, quick inlet channel 24 and source of the gas respectively by pipeline, two-position five-way valve 21 Remaining interface and atmosphere, described two-position five-way valve 21 has two kinds of seats in the plane, and one is that source of the gas connects with backhaul inlet channel 1 And quickly inlet channel 24 and atmosphere, another kind is that source of the gas connects and backhaul inlet channel with quick inlet channel 24 1 and atmosphere;The interface of described two position three-way valve 22 by pipeline respectively with quick inlet channel 24, super charge passage 3 And atmosphere, described two position three-way valve 22 has two kinds of seats in the plane, and one is quick inlet channel 24 and super charge passage 3 Connection, another kind is super charge passage 3 and atmosphere, and backhaul inlet channel 1 and quickly inlet channel 24 pass through pipeline Being connected with the control end of two position three-way valve 22 respectively, described backhaul inlet channel 1 controls what end was connected with two position three-way valve 22 Pipeline is provided with one-way throttle valve 23 and (is used for keeping two position three-way valve II end pressure, when working piston bar 12 F.F. until being adjacent to Workpiece, in working chamber, quickly convergence bleed pressure, gas are arrived I end of two position three-way valve 22 by pipeline by gas pressure, this Time these two position three-way valve 22 two ends be all bleed pressure, and this valve core I end area is more than II end, so time two position three-way valve 22 open).
The job step of the present invention is:
1) stroke is prepared: the seat in the plane of two-position five-way valve 21 is that source of the gas connects with backhaul inlet channel 1 and quick inlet channel 24 With atmosphere, source gas enters backhaul inlet channel 1 by two-position five-way valve 21 is logical, by stable for working piston 12 just Beginning position.Gas in backhaul inlet channel 1 enters II end of two position three-way valve 22 by gas circuit simultaneously, makes super charge passage 3 and atmosphere.
2) F.F. stroke: the seat in the plane of two-position five-way valve 21 is that source of the gas connects and backhaul inlet channel 1 with quick inlet channel 24 With atmosphere, the source gas piston 12 that pushes the work forward until contacting part to be processed, the most quickly gas in inlet channel 24 Body arrives II end of two position three-way valve 22 by pipeline, and in II end holding bleed pressure of two position three-way valve 22.
3) reinforcement stroke;After working beam 12 touches processing part, working cylinder cylinder body 14 internal volume is constant, and air pressure inside is quickly Leveling off to source of the gas air pressure, now two position three-way valve 22 switches seat in the plane, and quick inlet channel 24 connects with super charge passage 3, Quickly the gas in inlet channel 24 enters super charge passage 3, the purpose pressing to reach supercharging for 5 times by charged piston bar.
4) backstroke: super charge passage 3 and atmosphere, source of the gas connects with backhaul inlet channel 1 and quickly air inlet is led to Road 24 and atmosphere, source gas enters from backhaul inlet channel 1 and makes work plug bar alive return to initial position, back-moving spring 7 Charged piston 5 is made to return initial position.
Above is only presently preferred embodiments of the present invention, the interest field that certainly can not limit the present invention with this, therefore depends on The equivalence change that scope of the present invention patent is made, still belongs to protection scope of the present invention.

Claims (8)

1. a solution-air pressurized cylinder, including the drive end bearing bracket being tightly connected successively, working cylinder cylinder body, hydraulic cylinder body, oiling middle cover, Cylinder block and rear end cap, drive end bearing bracket is provided with backhaul inlet channel, and rear end cap is provided with the super charge connected with cylinder block Passage, is provided with in cylinder block on charged piston bar charged piston bar and is arranged with back-moving spring, is provided with work and lives in working cylinder cylinder body Stopper rod, working piston bar one end seals with hydraulic cylinder body and coordinates, the other end hermetically passing drive end bearing bracket of working piston bar, hydraulic pressure Cylinder cylinder body is provided with quick inlet channel, it is characterised in that described hydraulic cylinder body includes multiple hydraulic cylinder unit, each liquid It is provided with the through hole coordinated with charged piston bar, through hole in being provided with buffering middle cover, oiling middle cover and buffering middle cover between cylinder pressure body unit Inside it is arranged with hydraulic sealing ring.
Solution-air pressurized cylinder the most according to claim 1, it is characterised in that described hydraulic cylinder unit number is 2, one Individual hydraulic cylinder unit is high-pressure and hydraulic cylinder body, and another hydraulic cylinder unit is middle pressure cylinder body, the one of high-pressure and hydraulic cylinder body End is connected with working cylinder cylinder body, and the other end of high-pressure and hydraulic cylinder body is connected with buffering middle cover, one end of middle pressure cylinder body and buffering Middle cover connects, and the other end of middle pressure cylinder body is connected with pneumatic cylinder cylinder body.
Solution-air pressurized cylinder the most according to claim 2, it is characterised in that the sidewall of buffering middle cover is provided with the first buffering and leads to Road, is provided with the first check valve in the first buffer channel, liquid can therefrom flow to high-pressure and hydraulic cylinder body, reversely by pressure cylinder body Cut-off.
Solution-air pressurized cylinder the most according to claim 1, it is characterised in that the sidewall of oiling middle cover is provided with the second buffering and leads to Road, is provided with the second check valve in buffer channel, liquid can flow to hydraulic cylinder body direction stream from cylinder block direction, reversely cuts Only.
Solution-air pressurized cylinder the most according to claim 4, it is characterised in that be additionally provided with feed pathway on the outer wall of oiling middle cover, The outlet of feed pathway connects with the second buffer channel, passage choke-out after oiling.
Solution-air pressurized cylinder the most according to claim 1, it is characterised in that be provided with solution-air conversion middle cover in cylinder block, Charged piston bar changes middle cover through solution-air, and the hydraulic oil being stamped in hydraulic cylinder body in solution-air conversion is spacing with back-moving spring, Slide in solution-air conversion is placed on cylinder block.
Solution-air pressurized cylinder the most according to claim 1, it is characterised in that described working piston bar is near rear end cap side End face is provided with cavity, and described cavity is just to charged piston bar, the charged piston bar protracted during for accommodating supercharging, described work Piston rod is provided with flange, and the both sides of piston rod upper flange are cased with the rubber cushion coordinated with working cylinder cylinder body respectively.
Solution-air pressurized cylinder the most according to claim 1, it is characterised in that described solution-air pressurized cylinder is provided with and includes two Five-way valve and the air-channel system of two position three-way valve, three interfaces of described two-position five-way valve by pipeline respectively with backhaul inlet channel, Quickly inlet channel and source of the gas connection, remaining interface of two-position five-way valve and atmosphere, described two-position five-way valve has two kinds of machines Position, one is that source of the gas connects with backhaul inlet channel and quick inlet channel and atmosphere, and another kind is source of the gas and quickly enter Gas channel connection and backhaul inlet channel and atmosphere;The interface of described two position three-way valve by pipeline respectively with quick air inlet Passage, super charge passage and atmosphere, described two position three-way valve has two kinds of seats in the plane, and one is quick inlet channel and increasing Being pressed into gas channel connection, another kind is super charge passage and atmosphere, and backhaul inlet channel and quickly inlet channel pass through Pipeline is connected with the control end of two position three-way valve respectively, and described backhaul inlet channel controls, with two position three-way valve, the pipeline that end is connected It is provided with one-way throttle valve.
CN201610440098.1A 2016-06-17 2016-06-17 A kind of solution-air pressurized cylinder CN105952698B (en)

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CN106369010A (en) * 2016-10-27 2017-02-01 华南理工大学 Adjustable high-speed cylinder buffer device and method
CN106734460A (en) * 2016-11-22 2017-05-31 天津修洁科技有限公司 Electrichydraulic control press with hydraulically-damped controlling organization
CN106991899A (en) * 2017-03-29 2017-07-28 武汉软件工程职业学院 A kind of pneumohydraulic pressure-cylinder teaching aid of Multifunctional demonstration
CN107387469A (en) * 2017-07-14 2017-11-24 太仓优捷特机械有限公司 A kind of improved gas-liquid pressure-boosting cylinder structure
CN108626197A (en) * 2017-03-15 2018-10-09 精工电子有限公司 The process for stamping of cylinder assembly, decompressor, work holder, the working method of cylinder assembly, the clamp method of workpiece and workpiece
CN110454460A (en) * 2019-08-28 2019-11-15 邵玉强 A kind of Quick cylinder with function of increasing pressure

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CN108626197A (en) * 2017-03-15 2018-10-09 精工电子有限公司 The process for stamping of cylinder assembly, decompressor, work holder, the working method of cylinder assembly, the clamp method of workpiece and workpiece
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CN110454460A (en) * 2019-08-28 2019-11-15 邵玉强 A kind of Quick cylinder with function of increasing pressure

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