CN206429464U - A kind of hydraulic system of oil cylinder idle stroke fast downlink - Google Patents
A kind of hydraulic system of oil cylinder idle stroke fast downlink Download PDFInfo
- Publication number
- CN206429464U CN206429464U CN201720018667.3U CN201720018667U CN206429464U CN 206429464 U CN206429464 U CN 206429464U CN 201720018667 U CN201720018667 U CN 201720018667U CN 206429464 U CN206429464 U CN 206429464U
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- China
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- cylinder
- valve
- operating cylinder
- hydraulic system
- control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of hydraulic system of oil cylinder idle stroke fast downlink, including：Drive the operating cylinder of punch press punching press, control cylinder directly over operating cylinder, O-shaped three position four-way directional control valve, two-position four way change valve, sequence valve, replenishing valve and auxiliary fuel tank, operating cylinder is driven to carry out idle stroke work by control cylinder, when contacting dies workpiece, operating cylinder is transformed into using sequence valve to be processed, the high occasion of long process rate request is required oil cylinder stroke suitable for processing workpiece, cylinder upper end face is not directly contacted with when course of work operating cylinder piston is returned simultaneously, so as to reduce operating cylinder compression shock by piston in the course of work.
Description
Technical field
The utility model is related to hydraulic system field, and in particular to a kind of hydraulic system of oil cylinder idle stroke fast downlink.
Background technology
Traditional press machine is descending come work by oil cylinder piston, and its course of work is usually that single oil cylinder piston is complete
Stroke, therefore larger is required to pump and flow system flow, efficiency comparison is low, wastes the energy.And during traditional press machine backhaul
It is larger to cylinder upper end lid impulse ratio, for a long time using oil cylinder service life reduction or damage can be caused.
The content of the invention
There is provided do not need too many flow during a kind of oil cylinder idle stroke in order to overcome the shortcomings of above technology for the utility model
And the hydraulic system of the oil cylinder idle stroke fast downlink of fast downlink.
The technical scheme that the utility model overcomes its technical problem to be used is：
A kind of hydraulic system of oil cylinder idle stroke fast downlink, including：Drive the operating cylinder of punch press punching press, positioned at work
Control cylinder, O-shaped three position four-way directional control valve, two-position four way change valve, sequence valve, replenishing valve and auxiliary fuel tank directly over oil cylinder,
The piston rod head end of the control cylinder is connected with the piston of operating cylinder, and the P mouths of the O-shaped three position four-way directional control valve are connected to
The pressure oil pipe of hydraulic system, its T mouthfuls be connected to hydraulic system return line, a working oil of O-shaped three position four-way directional control valve
Mouth is connected to the cavity of resorption of control cylinder by high-pressure oil pipe I, its another actuator port connection high-pressure oil pipe II, II point of high-pressure oil pipe
The epicoele of control cylinder is not connected to and the epicoele of operating cylinder is connected to through sequence valve, and the epicoele of operating cylinder passes through two four
Logical reversal valve is connected to the return line of hydraulic system, and the control piper of replenishing valve is connected to the cavity of resorption of control cylinder, its oil-feed
Mouth is connected to auxiliary fuel tank by pipeline, and its oil-out is connected to the epicoele of operating cylinder by pipeline.
For the ease of detection workpiece, whether punching press is finished, in addition to the pressure switch being connected with operating cylinder epicoele.
In order to further improve the life-span of operating cylinder, in addition to the inductive switch I being installed on punch press lathe bed and sensing
Switch II, when the piston rod of operating cylinder is fully retracted into, it triggers inductive switch I, when the piston rod of operating cylinder is all stretched
When going out, it triggers inductive switch II.
The beneficial effects of the utility model are：Drive operating cylinder to carry out idle stroke work by control cylinder, work as mould
When contacting workpiece, it is transformed into operating cylinder using sequence valve and is processed, it is adaptable to process workpiece and oil cylinder stroke requirement length is added
The high occasion of work process rate request, while cylinder upper end face is not directly contacted with during the return of course of work operating cylinder piston, from
And operating cylinder compression shock by piston in the course of work can be reduced.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure, the pressure switch 5. of 3. high-pressure oil pipe of 1.O types 2. two-position four way change valve of three position four-way directional control valve I 4.
The inductive switch I 12. of 10. operating cylinder of high-pressure oil pipe II 6. sequence valve, 7. control cylinder, 8. auxiliary fuel tank, 9. fliud flushing valve 11.
Inductive switch II.
Embodiment
1 pair of the utility model is described further below in conjunction with the accompanying drawings.
A kind of hydraulic system of oil cylinder idle stroke fast downlink, including：Drive the operating cylinder 10 of punch press punching press, positioned at work
Make control cylinder 7 directly over oil cylinder 10, O-shaped three position four-way directional control valve 1, two-position four way change valve 2, sequence valve 6, replenishing valve 9
And auxiliary fuel tank 8, the piston rod head end of control cylinder 7 is connected with the piston of operating cylinder 10, the P mouths of O-shaped three position four-way directional control valve 1
Be connected to the pressure oil pipe of hydraulic system, its T mouthfuls be connected to hydraulic system return line, the one of O-shaped three position four-way directional control valve 1
Actuator port is connected to the cavity of resorption of control cylinder 7 by high-pressure oil pipe I 3, its another actuator port connection high-pressure oil pipe II 5,
High-pressure oil pipe II 5 is connected to the epicoele of control cylinder 7 and the epicoele of operating cylinder 10, working oil is connected to through sequence valve 6
The epicoele of cylinder 10 is connected to the return line of hydraulic system by two-position four way change valve 2, and the control piper of replenishing valve 9 is connected to
The cavity of resorption of control cylinder 7, its oil inlet is connected to auxiliary fuel tank 8 by pipeline, and its oil-out is connected to operating cylinder by pipeline
10 epicoele.When the hydraulic oil that O-shaped three position four-way directional control valve 1 switches to hydraulic system enters in high-pressure oil pipe II 5, high pressure
Oil respectively enters the epicoele and sequence valve 6 of control cylinder 7, and fliud flushing valve 9 is automatically turned on, and the oil of auxiliary fuel tank 8 enters on operating cylinder 10
Chamber, control cylinder 7 drives the fast downlink of operating cylinder 10, and after the upper mould of punch press touches workpiece, pressure rise, workpiece adds
When work is finished, sequence valve 6 is opened, and fliud flushing valve 9 is closed, and O-shaped three position four-way directional control valve 1 switches to middle position, and operating cylinder 10 stops
It is descending.When the hydraulic oil that O-shaped three position four-way directional control valve 1 switches to hydraulic system enters in high-pressure oil pipe I 3, hydraulic oil enters
The cavity of resorption of control cylinder 7, the control oil circuit of fliud flushing valve 9, fliud flushing valve 9 is opened, and the epicoele of operating cylinder 10 is communicated with auxiliary fuel tank 8, control oil
Cylinder 7 drives the fast uplink of operating cylinder 10, and operating cylinder 10 is during O-shaped three position four-way directional control valve 1 is switched to when being up to top dead-centre
Position, operating cylinder 10 and control cylinder 7 are parked in operating position.Operating cylinder 10 is driven to carry out idle stroke by control cylinder 7
Work, when contacting dies workpiece, is transformed into operating cylinder using sequence valve 6 and is processed, it is adaptable to process workpiece to oil cylinder
The high occasion of the long process rate request of range demands, while being not directly contacted with during the return of the piston of course of work operating cylinder 10
Cylinder upper end face, so as to reduce the compression shock by piston in the course of work of operating cylinder 10.
The pressure switch 4 being connected with the epicoele of operating cylinder 10 can also be included, when operating cylinder 10 is during descending
When carrying out punching press to workpiece, pressure rise after upper mould touches workpiece, pressure switch 4 sends pressure signal to PLC, when
Reach after certain pressure, you can think that workpiece is stamped qualified.Further, in addition to the sensing that is installed on punch press lathe bed
I 11 and inductive switch II 12 are switched, when the piston rod of operating cylinder 10 is fully retracted into, it triggers inductive switch I 11, when
When the piston rod of operating cylinder 10 all stretches out, it triggers inductive switch II 12.When triggering inductive switch I 11 or triggering sensing
After switching II 12, O-shaped three-dimensional four-way reversing valve 1 can switch to middle position in time, and now the epicoele of operating cylinder 10 or cavity of resorption be not
Lead to oil again, operating cylinder 10 is protected, its service life is improved.
Claims (3)
1. a kind of hydraulic system of oil cylinder idle stroke fast downlink, it is characterised in that including：Drive the operating cylinder of punch press punching press
（10）, positioned at operating cylinder（10）The control cylinder of surface（7）, O-shaped three position four-way directional control valve（1）, two-position four way change valve
（2）, sequence valve（6）, replenishing valve（9）And auxiliary fuel tank（8）, the control cylinder（7）Piston rod head end and operating cylinder（10）
Piston be connected, the O-shaped three position four-way directional control valve（1）P mouths be connected to the pressure oil pipe of hydraulic system, its T mouthfuls is connected to
The return line of hydraulic system, O-shaped three position four-way directional control valve（1）An actuator port pass through high-pressure oil pipe I（3）It is connected to control
Oil cylinder（7）Cavity of resorption, its another actuator port connection high-pressure oil pipe II（5）, high-pressure oil pipe II（5）It is connected to control cylinder
（7）Epicoele and through sequence valve（6）It is connected to operating cylinder（10）Epicoele, operating cylinder（10）Epicoele pass through two-position four-way
Reversal valve（2）It is connected to the return line of hydraulic system, replenishing valve（9）Control piper be connected to control cylinder（7）Cavity of resorption,
Its oil inlet is connected to auxiliary fuel tank by pipeline（8）, its oil-out is connected to operating cylinder by pipeline（10）Epicoele.
2. the hydraulic system of oil cylinder idle stroke fast downlink according to claim 1, it is characterised in that：Also include and work
Oil cylinder（10）The connected pressure switch of epicoele（4）.
3. the hydraulic system of oil cylinder idle stroke fast downlink according to claim 1 or 2, it is characterised in that：Also include peace
Loaded on the inductive switch I on punch press lathe bed（11）And inductive switch II（12）, work as operating cylinder（10）Piston rod be fully retracted into
When, it triggers inductive switch I（11）, work as operating cylinder（10）Piston rod all stretch out when, its trigger inductive switch II（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720018667.3U CN206429464U (en) | 2017-01-09 | 2017-01-09 | A kind of hydraulic system of oil cylinder idle stroke fast downlink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720018667.3U CN206429464U (en) | 2017-01-09 | 2017-01-09 | A kind of hydraulic system of oil cylinder idle stroke fast downlink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206429464U true CN206429464U (en) | 2017-08-22 |
Family
ID=59584887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720018667.3U Expired - Fee Related CN206429464U (en) | 2017-01-09 | 2017-01-09 | A kind of hydraulic system of oil cylinder idle stroke fast downlink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206429464U (en) |
-
2017
- 2017-01-09 CN CN201720018667.3U patent/CN206429464U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20200109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |