CN206487712U - A kind of hydraulic system of three cylinders common bending machine - Google Patents
A kind of hydraulic system of three cylinders common bending machine Download PDFInfo
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- CN206487712U CN206487712U CN201720132043.4U CN201720132043U CN206487712U CN 206487712 U CN206487712 U CN 206487712U CN 201720132043 U CN201720132043 U CN 201720132043U CN 206487712 U CN206487712 U CN 206487712U
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Abstract
The utility model provides a kind of hydraulic system of three cylinders common bending machine, including main valve body, left compacting oil cylinder, middle Quick cylinder, right compacting oil cylinder, remote pressure regulating valve and fuel tank；Normally closed replenishing valve is equipped with the left compacting oil cylinder, middle Quick cylinder and right compacting oil cylinder, main valve body includes main pressure valve, three-position four-way electromagnetic directional valve, pressure-reducing valve, check valve, balanced valve and two-position four-way solenoid directional control valve, main pressure valve is two-way plug-in valve, and its pilot element is overflow valve.The beneficial effects of the utility model are：Employ a fast cylinder and realize that sliding block is lower soon and returns to, realized and suppressed using two plunger cases, principle is simple, easy to maintenance；Compacting is participated in using fast cylinder, with sliding block compensation function, bending Quality advance；Control more traditional common bending machine system more accurate by rate conversion point；In addition, lathe sliding block weight saving, reduces Machine Manufacture cost；Using screw-in cartridge valve, compact conformation is not susceptible to draining phenomenon.
Description
Technical field
The utility model is related to bender technical field of hydraulic pressure, more particularly to a kind of hydraulic pressure system of three cylinders common bending machine
System.
Background technology
Hydraulic bending press stretches to complete the bending work to workpiece using HYDRAULIC CONTROL SYSTEM oil cylinder.Bender hydraulic pressure system
By quantitative hydraulic pump, conversion valve block, oil cylinder oil inlet oil circuit, the part such as oil cylinder oil return circuit and safety valve, check valve as unified
Composition.
At present, traditional common bending machine is lower soon is relied under slider of bender deadweight soon, and lower speed is difficult to control to soon, speed
Transfer point control is inaccurate, influence slow lower compacting, bending quality.
The content of the invention
To solve the above problems, the utility model discloses a kind of hydraulic system of three cylinders common bending machine.
In order to reach object above, the utility model provides following technical scheme：
A kind of hydraulic system of three cylinders common bending machine, it is characterised in that：It is fast including main valve body, left compacting oil cylinder, centre
Fast oil cylinder, right compacting oil cylinder, remote pressure regulating valve and fuel tank；Connected on the outside of the X mouths of the main valve body by remote pressure regulating valve and fuel tank
Connect, T mouthfuls of outsides be connecteds with fuel tank, C mouthful outsides are connected with the left epicoele for suppressing oil cylinder and right compacting oil cylinder respectively, on the outside of A mouthfuls and
The epicoele connection of middle Quick cylinder, B mouthfuls of outsides are connected with the cavity of resorption of middle Quick cylinder, and the left compacting oil cylinder, centre are fast
Normally closed replenishing valve, the normally closed replenishing valve control of the left compacting oil cylinder and right compacting oil cylinder are equipped with fast oil cylinder and right compacting oil cylinder
Connected on the outside of the FA mouths of donsole and main valve body, the normally closed replenishing valve control mouth of the middle Quick cylinder and the FB mouths of main valve body are outer
Side is connected；The main valve body includes main pressure valve, three-position four-way electromagnetic directional valve, pressure-reducing valve, check valve, balanced valve and two four
Electric change valve, the main pressure valve is two-way plug-in valve, and its pilot element is overflow valve, the intraoral sides of P of the main valve body
The A mouths of P mouths respectively with two-position four-way solenoid directional control valve, the P mouths of three-position four-way electromagnetic directional valve and two-way plug-in valve are connected, institute
The A mouths for stating two-position four-way solenoid directional control valve and B mouthfuls are connected with the intraoral sides of the FA of main valve body and the intraoral sides of C respectively, described three four
The A mouths of electric change valve are connected with one end of pressure-reducing valve and one end of check valve respectively, the other end and list of the pressure-reducing valve
It is in parallel to the other end of valve, and be connected with the intraoral sides of the A of main valve body, the B mouths of the three-position four-way electromagnetic directional valve are respectively with putting down
One end of weighing apparatus valve and the intraoral side connections of the FB of main valve body, the other end of the balanced valve and the intraoral sides of the B of main valve body are connected, described
The T mouths of two-position four-way solenoid directional control valve are in parallel with the T mouths of three-position four-way electromagnetic directional valve by throttle orifice, and and two-way plug-in valve
B mouths and main valve body the connection of T intraoral sides.
Further, the two-way plug-in valve is NG16 two-way plug-in valves.
Further, the two-position four-way solenoid directional control valve is NG10 two-position four-way solenoid directional control valves.
Compared with prior art, the beneficial effects of the utility model are：Employ under a fast cylinder realizes that sliding block is fast
And return to, realized and suppressed using two plunger cases, principle is simple, easy to maintenance；Compacting is participated in using fast cylinder, mended with sliding block
Repay function, bending Quality advance；Control more traditional common bending machine system more accurate by rate conversion point；In addition, lathe is slided
Block weight saving, reduces Machine Manufacture cost；Using screw-in cartridge valve, compact conformation is not susceptible to draining phenomenon.
Brief description of the drawings
Fig. 1 is a kind of hydraulic schematic diagram of the hydraulic system of three cylinders common bending machine of the utility model.
Reference numerals list：
1- main valve bodies, 2- three-position four-way electromagnetic directional valves, 3- pressure-reducing valves, 4- check valves, 5- balanced valves, 6- two-position four-ways electricity
Quick cylinder in the middle of magnetic reversal valve, 7- overflow valves, 8- remote pressure regulating valves, the left compacting oil cylinders of 9-, 10-, the right compacting oil cylinders of 11-,
The normally closed replenishing valves of 12-, 13- two-way plug-in valves.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is further elucidated, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limits scope of the present utility model.
As illustrated, a kind of hydraulic system of three cylinders common bending machine, including main valve body 1, left compacting oil cylinder 9, centre are soon
Fast oil cylinder 10, right compacting oil cylinder 11, remote pressure regulating valve 8 and fuel tank；The X mouths of main valve body 1 are connected by remote pressure regulating valve 8 and fuel tank
Connect, T mouthfuls of outsides are connected with fuel tank, epicoele of the C mouthfuls of outsides respectively with left compacting oil cylinder 9 and right compacting oil cylinder 11 is connected, A mouthfuls of outsides
It is connected with the epicoele of middle Quick cylinder 10, B mouthfuls of outsides are connected with the cavity of resorption of middle Quick cylinder 10, left compacting oil cylinder 9, centre
Be equipped with normally closed replenishing valve 12 on Quick cylinder 10 and right compacting oil cylinder 11, left compacting oil cylinder 9 and right compacting oil cylinder 11 it is normally closed
The control mouth of replenishing valve 12 on the outside of the FA mouths of main valve body 1 with being connected, the control mouth of normally closed replenishing valve 12 of middle Quick cylinder 10 and master
Connected on the outside of the FB mouths of valve body 1.
Wherein, main valve body 1 includes main pressure valve, three-position four-way electromagnetic directional valve 2, pressure-reducing valve 3, check valve 4, balanced valve 5
With two-position four-way solenoid directional control valve 6, main pressure valve is two-way plug-in valve 13, and its pilot element is overflow valve 7, the P mouths of main valve body 1
P mouths, the P mouths and the A of two-way plug-in valve 13 of three-position four-way electromagnetic directional valve 2 of inner side respectively with two-position four-way solenoid directional control valve 6
Mouthful connection, the A mouths of two-position four-way solenoid directional control valve 6 and B mouthfuls are connected with the intraoral sides of the FA of main valve body 1 and the intraoral sides of C respectively, three
The A mouths of four-way electromagnetic reversing valve 2 are connected with one end of pressure-reducing valve 3 and one end of check valve 4 respectively, the other end of pressure-reducing valve 3 and
The other end of check valve 4 is in parallel, and is connected with the intraoral sides of the A of main valve body 1, and the B mouths of three-position four-way electromagnetic directional valve 2 are respectively with putting down
One end of weighing apparatus valve 5 and the intraoral side connections of the FB of main valve body 1, the other end of balanced valve 5 are connected with the intraoral sides of the B of main valve body 1, two
The T mouths of four-way electromagnetic reversing valve 6 are in parallel with the T mouths of three-position four-way electromagnetic directional valve 2 by throttle orifice, and with two-way plug-in valve 13
B mouths and main valve body 1 the connection of T intraoral sides.
In the present embodiment, two-way plug-in valve（13）For NG16 two-way plug-in valves, two-position four-way solenoid directional control valve（6）For
NG10 two-position four-way solenoid directional control valves.
This hydraulic system realizes that sliding block is lower soon and returns to using a fast cylinder, is realized and suppressed using two plunger cases.Pass
The common bending machine of system is soon under the lower deadweight soon by slider of bender, and lower speed is difficult to control to soon, and the control of rate conversion point is inaccurate,
Influence slow lower compacting, bending quality.Wherein, three cylinder bender hydraulic system main pressure valves use NG16 two-way plug-in valves, overflow
Valve 7 is set as guide's safety valve, system pressure by remote pressure regulating valve 8.Two-position four-way solenoid directional control valve 6 uses NG10 bis- four
Electric change valve, the slow lower compacting and the pressure release of cylinder upper cavity oil pressure oil of control plunger case.Fast cylinder control loop is set
Three-position four-way electromagnetic directional valve 2 controls the stretching and retraction of fast cylinder, and A mouthfuls of setting pressure-reducing valves 3 of reversal valve, check valve 4 are controlled soon
Lower pressure；B mouthfuls of reversal valve sets one-way balance valve to do by pressure valve, prevents from descending stall soon.
The utility model employs a fast cylinder and realizes that sliding block is lower soon and returns to, and is realized and suppressed using two plunger cases,
Principle is simple, easy to maintenance；Compacting is participated in using fast cylinder, with sliding block compensation function, bending Quality advance；Turned by speed
Change a more traditional common bending machine system of control more accurate；In addition, lathe sliding block weight saving, reduces Machine Manufacture cost；Adopt
With screw-in cartridge valve, compact conformation is not susceptible to draining phenomenon.
Principle explanation（The hydraulic schematic diagram of reference picture 1）.
First, Stress control：
Start Oil pump electrical machinery, it is different according to required bending power, it is remote to adjust the control two-way plug-in valve 13 of pressure valve 8 to adjust liquid
The pressure of pressure system, to meet the requirement of bending power.
2nd, working cycles：
1st, under fast：Y1 to three-position four-way electromagnetic directional valve 2 obtains electric, and system builds pressure.The pressure oil of oil pump output is passed through all the way
Three-position four-way electromagnetic directional valve 2（P→A）, pressure-reducing valve 3 to the middle epicoele of Quick cylinder 10, pressure oil open balanced valve 5, it is normally closed
Replenishing valve is closed, and oil cylinder stretches out band movable slider rapid decrease；Another road is through solenoid directional control valve 6（P→A）To FA mouthfuls, compacting oil cylinder
Replenishing valve control mouth, normally closed replenishing valve is opened.The fluid of Quick cylinder cavity of resorption passes through balanced valve 5, three-position four-way electromagnetic directional valve 2
（B→T）Oil return box.Sliding block drives left and right compacting oil cylinder to stretch out, and its epicoele is filled oil by its replenishing valve from fuel tank.
2nd, slow lower pressurization：The Y1 of three-position four-way electromagnetic directional valve 2 obtains electric, two-position four-way solenoid directional control valve 6 Y3 and obtains electric,
System builds pressure.Normally closed replenishing valve control mouth FA passes through two-position four-way solenoid directional control valve 6 on left and right compacting oil cylinder（A→T）Release, fills
Liquid valve is closed.The pressure oil of oil pump output is all the way through three-position four-way electromagnetic directional valve 2（P→A）, pressure-reducing valve 3 to middle rapid oil
The epicoele of cylinder 10；Another road is through two-position four-way solenoid directional control valve 6（P→B）Cylinder upper cavity oil is suppressed into left and right.Oil cylinder, which stretches out to drive, to be slided
Block is lower slowly to be suppressed.Sliding block descends speed to be realized by adjustment valve 5 slowly.
3rd, release：After bender pressurize, magnetic valve whole dead electricity, 2 times middle positions of three-position four-way electromagnetic directional valve（P, A → T),
Oil pump off-load.Cylinder upper cavity oil pressure oil is suppressed through two-position four-way solenoid directional control valve 6 in left and right（B→T）, throttle orifice pressure release oil return box.
The middle cylinder upper cavity pressure of rapid oil 10 oil is through check valve 4, throttle orifice, three-position four-way electromagnetic directional valve 2（A→T）Pressure release oil return box.
Unloading time passage time relay is controlled.
4th, stop：Under fast, it is slow it is lower during the whole dead electricity of magnetic valve, 2 times middle positions of three-position four-way electromagnetic directional valve（P、A→
T), system unloaded.Middle Quick cylinder cavity of resorption balanced valve 5 closes pressurize, and sliding block stops.
5th, return：Y2 to three-position four-way electromagnetic directional valve 2 obtains electric, and Y1, Y3 dead electricity, system build pressure.The pressure of oil pump discharge
Power oil is all the way through three-position four-way electromagnetic directional valve 2（P→B）, to balanced valve 5 arrive Quick cylinder cavity of resorption；All the way through 3-position 4-way electricity
Magnetic reversal valve 2（P→B）, to the normally closed replenishing valve control mouth FB of Quick cylinder, pressure oil opens replenishing valve.Quick cylinder is retracted,
The substantial amounts of fluid of cylinder upper cavity oil passes through its replenishing valve oil return box.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also
Including being combined constituted technical scheme by above technical characteristic.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations are also considered as protection domain of the present utility model.
Claims (3)
1. a kind of hydraulic system of three cylinders common bending machine, it is characterised in that：Including main valve body（1）, left compacting oil cylinder（9）, in
Between Quick cylinder（10）, right compacting oil cylinder（11）, remote pressure regulating valve（8）And fuel tank；
The main valve body（1）X mouths on the outside of pass through remote pressure regulating valve（8）It is connected with fuel tank, T mouthfuls of outsides are connected with fuel tank, C mouthfuls outer
Side respectively with left compacting oil cylinder（9）With right compacting oil cylinder（11）Epicoele connection, A mouthful outside with centre Quick cylinder（10）It is upper
Chamber is connected, B mouthfuls of outsides and middle Quick cylinder（10）Cavity of resorption connection, the left compacting oil cylinder（9）, middle Quick cylinder（10）
With right compacting oil cylinder（11）On be equipped with normally closed replenishing valve（12）, the left compacting oil cylinder（9）With right compacting oil cylinder（11）It is normal
Close replenishing valve（12）Control mouth and main valve body（1）FA mouths on the outside of connect, the middle Quick cylinder（10）Normally closed replenishing valve
（12）Control mouth and main valve body（1）FB mouths on the outside of connect；
The main valve body（1）Including main pressure valve, three-position four-way electromagnetic directional valve（2）, pressure-reducing valve（3）, check valve（4）, balance
Valve（5）With two-position four-way solenoid directional control valve（6）, the main pressure valve is two-way plug-in valve（13）, its pilot element is overflow valve
（7）, the main valve body（1）The intraoral sides of P respectively with two-position four-way solenoid directional control valve（6）P mouths, three-position four-way electromagnetic directional valve
（2）P mouths and two-way plug-in valve（13）A mouths connection, the two-position four-way solenoid directional control valve（6）A mouths and B mouthfuls respectively with master
Valve body（1）The intraoral sides of FA and the connection of C intraoral sides, the three-position four-way electromagnetic directional valve（2）A mouths respectively with pressure-reducing valve（3）
One end and check valve（4）One end connection, the pressure-reducing valve（3）The other end and check valve（4）The other end it is in parallel, and with
Main valve body（1）The connection of A intraoral sides, the three-position four-way electromagnetic directional valve（2）B mouths respectively with balanced valve（5）One end and
Main valve body（1）The connection of FB intraoral sides, the balanced valve（5）The other end and main valve body（1）The connection of B intraoral sides, described two
Position four-way electromagnetic reversing valve（6）T mouths pass through throttle orifice and three-position four-way electromagnetic directional valve（2）The intraoral sides of T it is in parallel, and with two
Logical inserted valve（13）B mouths and main valve body（1）The connection of T intraoral sides.
2. a kind of hydraulic system of three cylinders common bending machine according to claim 1, it is characterised in that：The two-way inserting
Valve（13）For NG16 two-way plug-in valves.
3. a kind of hydraulic system of three cylinders common bending machine according to claim 1, it is characterised in that：The two-position four-way
Solenoid directional control valve（6）For NG10 two-position four-way solenoid directional control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132043.4U CN206487712U (en) | 2017-02-14 | 2017-02-14 | A kind of hydraulic system of three cylinders common bending machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720132043.4U CN206487712U (en) | 2017-02-14 | 2017-02-14 | A kind of hydraulic system of three cylinders common bending machine |
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| CN201720132043.4U Active CN206487712U (en) | 2017-02-14 | 2017-02-14 | A kind of hydraulic system of three cylinders common bending machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340202A (en) * | 2018-11-27 | 2019-02-15 | 安徽东海机床制造有限公司 | A kind of hydraulic system and its control technique of large-tonnage portal frame type hydraulic press |
| CN109367094A (en) * | 2018-11-27 | 2019-02-22 | 安徽东海机床制造有限公司 | A kind of large-tonnage portal frame type hydraulic press |
-
2017
- 2017-02-14 CN CN201720132043.4U patent/CN206487712U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340202A (en) * | 2018-11-27 | 2019-02-15 | 安徽东海机床制造有限公司 | A kind of hydraulic system and its control technique of large-tonnage portal frame type hydraulic press |
| CN109367094A (en) * | 2018-11-27 | 2019-02-22 | 安徽东海机床制造有限公司 | A kind of large-tonnage portal frame type hydraulic press |
| CN109367094B (en) * | 2018-11-27 | 2024-03-01 | 安徽东海机床制造有限公司 | Large-tonnage portal frame type oil press |
| CN109340202B (en) * | 2018-11-27 | 2024-03-15 | 安徽东海机床制造有限公司 | Hydraulic system of large-tonnage portal frame type hydraulic press and control process thereof |
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