CN218669996U - Single-action sheet stamping hydraulic system - Google Patents
Single-action sheet stamping hydraulic system Download PDFInfo
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- CN218669996U CN218669996U CN202223108885.6U CN202223108885U CN218669996U CN 218669996 U CN218669996 U CN 218669996U CN 202223108885 U CN202223108885 U CN 202223108885U CN 218669996 U CN218669996 U CN 218669996U
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Abstract
The utility model discloses a single action sheet metal punching press hydraulic system relates to hydraulic control technical field, include: the hydraulic pump is arranged in the oil tank, the hydraulic pump is connected with an oil inlet cavity of the main cylinder through the power-on potential of the first M-type three-position four-way electromagnetic valve, an oil return cavity of the main cylinder is connected with the oil tank sequentially through the power-on potential of the first M-type three-position four-way electromagnetic valve and the power-off potential of the two-position four-way electromagnetic reversing valve, and an outlet of the hydraulic pump is connected with the oil tank sequentially through the power-off potential of the first M-type three-position four-way electromagnetic valve and the power-off potential of the two-position four-way electromagnetic reversing valve; the utility model discloses well direct utilization disconnected potential has first M type tribit four-way solenoid valve and two-position four-way electromagnetic directional valve of off-load function, makes the empty circulation that the system can accomplish hydraulic oil, can save the empty circulating valve in the exit of hydraulic pump, improves the convenient degree of installation and reduce cost.
Description
Technical Field
The utility model relates to a hydraulic control technical field especially relates to a single action sheet metal punching press hydraulic system.
Background
The stamping is a forming processing method for applying external force to plates, strips, pipes, profiles and the like by a press machine and a die to cause the plates, the strips, the pipes, the profiles and the like to generate plastic deformation or separation, so that workpieces (stamping parts) with required shapes and sizes are obtained.
Therefore, a single-action thin plate stamping hydraulic system which is convenient to install and low in cost is needed.
Disclosure of Invention
The utility model aims at providing a single action sheet metal punching press hydraulic system to solve the problem that above-mentioned prior art exists, directly utilize disconnected electric potential to have first M type tribit four-way solenoid valve and the two-position four-way solenoid valve of off-load function, make the empty circulation that the system can accomplish hydraulic oil, can save the empty circulating valve in the exit of hydraulic pump, improve the convenient degree of installation and reduce cost.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a single action sheet metal punching press hydraulic system, including oil tank, hydraulic pump and master cylinder, the hydraulic pump sets up in the oil tank, the hydraulic pump through first M type tribit four-way solenoid valve the circular telegram position with the oil feed chamber of master cylinder is connected, the time oil return chamber of master cylinder loops through the circular telegram position of first M type tribit four-way solenoid valve and the outage position of two-position four-way electromagnetic directional valve with the oil tank is connected, the export of hydraulic pump loops through the outage position of first M type tribit four-way solenoid valve and the outage position of two-position four-way electromagnetic directional valve with the oil tank is connected.
Preferably, an electromagnetic ball valve with a quick unloading function is arranged between the oil outlet cavity in the main cylinder stamping process and the first M-shaped three-position four-way electromagnetic valve.
Preferably, a balance valve is arranged between the oil outlet cavity in the main cylinder stamping process and the first M-shaped three-position four-way electromagnetic valve.
Preferably, a first direct-acting overflow valve is arranged between the oil outlet cavity in the main cylinder stamping process and the first M-shaped three-position four-way solenoid valve in a bypassing mode.
Preferably, a first pilot-operated overflow valve is arranged between the oil outlet cavity and the first M-type three-position four-way solenoid valve in the return stroke of the master cylinder in a bypass mode.
Preferably, a second direct-acting overflow valve is arranged at the outlet of the hydraulic pump in a bypass mode.
Preferably, the oil outlet cavity in the return process of the master cylinder is connected with the oil tank through a liquid charging valve, and the hydraulic pump is connected with the liquid charging valve through the power-on position of the two-position four-way electromagnetic directional valve.
Preferably, the single-acting sheet stamping hydraulic system further comprises a top cylinder, the hydraulic pump is connected with the oil inlet cavity of the top cylinder through the power-on position of a second M-type three-position four-way electromagnetic valve, the oil return cavity of the top cylinder sequentially passes through the power-on position of the second M-type three-position four-way electromagnetic valve, the power-off position of a first M-type three-position four-way electromagnetic valve and the power-off position of a two-position four-way electromagnetic reversing valve and is connected with the oil tank, and the outlet of the hydraulic pump sequentially passes through the power-off position of the second M-type three-position four-way electromagnetic valve, the power-off position of the first M-type three-position four-way electromagnetic valve and the power-off position of the two-position four-way electromagnetic reversing valve and is connected with the oil tank.
Preferably, a superposition type hydraulic control one-way valve is arranged between the jacking cylinder and the second M-type three-position four-way electromagnetic valve.
Preferably, a second pilot-operated overflow valve is arranged between the top cylinder and the second M-type three-position four-way solenoid valve in a bypassing manner.
The utility model discloses for prior art gain following technological effect:
1. the utility model discloses well direct utilization disconnected potential has first M type tribit four-way solenoid valve and two-position four-way electromagnetic directional valve of off-load function, makes the empty circulation that the system can accomplish hydraulic oil, can save the empty circulating valve in the exit of hydraulic pump, improves the convenient degree of installation and reduce cost.
2. The utility model discloses in utilize the interlocking of stack liquid accuse check valve, under the second tribit four-way solenoid valve outage circumstances, play good safety protection effect to the hydraulic oil in the jar that pushes up.
3. The utility model discloses the setting of well through overflow valve and guide's overflow valve can play good guard action to master cylinder and jack-up cylinder, prevents the condition of exploding the jar.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a system diagram of a single-acting hydraulic sheet stamping system according to the present invention;
wherein, 1, an oil tank; 2. a hydraulic pump; 3. a master cylinder; 4. a first M-type three-position four-way solenoid valve; 5. a two-position four-way electromagnetic directional valve; 6. an electromagnetic ball valve; 7. a balancing valve; 8. a first direct-acting overflow valve; 9. a first pilot operated relief valve; 10. a second direct acting overflow valve; 11. a liquid charging valve; 12. jacking the cylinder; 13. a second M-shaped three-position four-way electromagnetic valve; 14. a superposed hydraulic control one-way valve; 15. a second pilot operated relief valve; 16. and a pressure gauge.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a single action sheet metal punching press hydraulic system to solve the problem that prior art exists, directly utilize disconnected electric potential to have first M type tribit four-way solenoid valve and the two-position four-way solenoid directional valve of off-load function, make the empty circulation that the system can accomplish hydraulic oil, can save the empty circulating valve in the exit of hydraulic pump, improve the convenient degree of installation and reduce cost.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, a single-acting hydraulic system for stamping a thin plate is provided, including an oil tank 1, a hydraulic pump 2 and a master cylinder 3, the hydraulic pump 2 is disposed in the oil tank 1, the hydraulic pump 2 is connected to an oil inlet chamber of the master cylinder 3 through an on-potential of a first M-type three-position four-way solenoid valve 4, the first M-type three-position four-way solenoid valve 4 includes an on-potential controlled by YA1 and YA2 at both sides and a middle off-potential, a P port is connected to a T port on the off-potential, a port a is disconnected from a port B, an oil return chamber of the master cylinder 3 is connected to the oil tank 1 through the on-potential of the first M-type three-position four-way solenoid valve 4 and the off-potential of the two-position four-way solenoid directional valve 5 in sequence, the two-position four-way solenoid directional valve 5 includes an on-potential and an off-potential controlled by YA3, a PTAB port on the off-potential is connected to each other, an outlet of the hydraulic pump 2 is connected to the oil tank 1 through an off-potential of the first M-type three-position four-position solenoid valve 4 and the two-position four-way solenoid valve 5 in sequence, and an off-position solenoid valve 4 and an idle circulation valve 5 can reduce the installation cost of the hydraulic pump 2, and reduce the idle circulation of the main cylinder 3, and the main cylinder, and the idle circulation system, and reduce the idle circulation cost of the main cylinder, and the idle circulation system, and the idle circulation cost of the main cylinder, which can be conveniently installed, and reduce the idle circulation system, and reduce the idle circulation cost of the hydraulic system: in the process of fast descending and working feeding (stamping) of the main cylinder 3, the YA2 electromagnet of the first M-shaped three-position four-way electromagnetic valve 4 keeps an electrified state, pressure oil of the hydraulic pump 2 is reversed to reach an oil inlet cavity of the main cylinder 3 through the first M-shaped three-position four-way electromagnetic valve 4, the pressure oil in an oil outlet cavity of the main cylinder 3 can return to the oil tank 1 through the first M-shaped three-position four-way electromagnetic valve 4 and a power-off position of the two-position four-way electromagnetic reversing valve 5, the main cylinder 3 moves downwards to carry out product pressing, after the pressing is finished, a proximity switch sends a signal to finish the pressing process, and the signal is also a command signal for starting the next action; in the return process of the main cylinder 3, the YA1 electromagnet of the first M-type three-position four-way electromagnetic valve 4 is electrified, the pressure oil of the hydraulic pump 2 is reversed to reach the oil inlet cavity of the main cylinder 3 through the first M-type three-position four-way electromagnetic valve 4, the main cylinder 3 starts the return process, the pressure oil of the oil outlet cavity of the main cylinder 3 returns to the oil tank 1 through the power-off bit flow of the first M-type three-position four-way electromagnetic valve 4 and the two-position four-way electromagnetic reversing valve 5, and when the main cylinder 3 touches the upper end proximity switch, the proximity switch sends an instruction, and the whole return process is completed.
An electromagnetic ball valve 6 with a quick unloading function is arranged between an oil outlet cavity in the stamping process of the main cylinder 3 and the first M-shaped three-position four-way electromagnetic valve 4, the electromagnetic ball valve 6 is mainly switched to a quick unloading channel in the quick unloading process in an electrified mode, namely, in the quick unloading process, the electromagnetic ball valve 6 is electrified, pressure oil in the oil outlet cavity of the main cylinder 3 directly flows back to the oil tank 1 through the electromagnetic ball valve 6, and under other working conditions, the electromagnetic ball valve 6 is not electrified.
A balance valve 7 is arranged between an oil outlet cavity in the stamping process of the main cylinder 3 and the first M-shaped three-position four-way electromagnetic valve 4, and the arrangement of the balance valve 7 can adjust the pressure oil pressure of the oil outlet cavity through an overflow valve of the balance valve 7 in the working process of the main cylinder 3.
A first direct-acting overflow valve 8 is arranged between an oil outlet cavity in the stamping process of the main cylinder 3 and the first M-shaped three-position four-way electromagnetic valve 4 in a bypassing mode, and the first direct-acting overflow valve 8 can overflow when the oil outlet cavity exceeds the set pressure in the working process of the main cylinder 3, so that the risk caused by overhigh pressure in the cavity of the main cylinder 3 is prevented.
A first pilot overflow valve 9 is arranged between an oil outlet cavity in the return process of the main cylinder 3 and the first M-shaped three-position four-way electromagnetic valve 4 in a bypass mode, the oil outlet cavity in the return process of the main cylinder 3 can overflow when the oil outlet cavity exceeds the set pressure, and the risk caused by overhigh pressure in the cavity of the main cylinder 3 is prevented.
A second direct-acting overflow valve 10 is arranged at the outlet of the hydraulic pump 2 in a bypass mode and used for adjusting the pressure of pressure oil discharged from the outlet of the hydraulic pump 2.
An oil outlet cavity in the return stroke process of the main cylinder 3 is connected with the oil tank 1 through the liquid charging valve 11, the hydraulic pump 2 is connected with the liquid charging valve 11 through the power-on position of the two-position four-way electromagnetic reversing valve 5, in the pressure relief process after the stamping process of the main cylinder 3 is completed, the YA3 electromagnet of the two-position four-way electromagnetic reversing valve 5 is powered on, the first M-type three-position four-way electromagnetic valve 4 is in a power-off state, system pressure oil sequentially passes through the first M-type three-position four-way electromagnetic valve 4 and the two-position four-way electromagnetic reversing valve 5 to reach a control port of the liquid charging valve 11, the liquid charging valve 11 is opened, the main cylinder 3 is depressurized, and the return stroke can be performed after the pressure relief of the main cylinder 3 is completed.
The single-acting sheet stamping hydraulic system further comprises a top cylinder 12, the hydraulic pump 2 is connected with an oil inlet cavity of the top cylinder 12 through an on potential of a second M-type three-position four-way electromagnetic valve 13, the second M-type three-position four-way electromagnetic valve 13 comprises an on potential controlled by YA4 and YA5 on two sides and an off potential in the middle, a port P is connected with a port T on the off potential, a port A is disconnected with a port B, an oil return cavity of the top cylinder 12 is connected with the oil tank 1 through the on potential of the second M-type three-position four-way electromagnetic valve 13, the off potential of the first M-type three-position four-way electromagnetic valve 4 and the off potential of the two-position four-way electromagnetic reversing valve 5 in sequence, an outlet of the hydraulic pump 2 is connected with the oil tank 1 through the off potential of the second M-type three-position four-way electromagnetic valve 13, the off potential of the first M-type three-position four-way electromagnetic valve 4 and the off potential of the two-position four-way electromagnetic reversing valve 5 in sequence, and the working principle: the ejection process of the top cylinder 12 is carried out after the return stroke of the main cylinder 3 is finished, the YA4 electromagnet of the second M-shaped three-position four-way electromagnetic valve 13 is electrified, hydraulic pressure oil reaches the oil inlet cavity of the top cylinder 12 through the second M-shaped three-position four-way electromagnetic valve 13, the top cylinder 12 is ejected, the pressure oil of the oil outlet cavity of the top cylinder 12 returns to the oil tank 1 through the second M-shaped three-position four-way electromagnetic valve 13, the power-off position of the first M-shaped three-position four-way electromagnetic valve 4 and the power-off position flow of the two-position four-way electromagnetic reversing valve 5, the top cylinder 12 touches the upper end proximity switch, the proximity switch sends an instruction, and the ejection action of the top cylinder 12 is finished; in the process of returning the top cylinder 12, after the instruction signal is sent in the previous step, the YA5 electromagnet of the second M-type three-position four-way solenoid valve 13 is powered on, the pressure oil of the hydraulic pump 2 reaches the oil inlet cavity of the top cylinder 12 through the second M-type three-position four-way solenoid valve 13, the top cylinder 12 returns, the pressure oil in the oil outlet cavity of the top cylinder 12 returns to the oil tank 1 through the second M-type three-position four-way solenoid valve 13, the power-off position of the first M-type three-position four-way solenoid valve 4 and the power-off position of the two-position four-way solenoid directional valve 5, the top cylinder 12 touches the lower end proximity switch, the proximity switch sends an instruction, and the ejection action of the top cylinder 12 is completed.
The overlapped hydraulic control one-way valve 14 is arranged between the top cylinder 12 and the second M-type three-position four-way electromagnetic valve 13, the overlapped hydraulic control one-way valve 14 can play an interlocking role, and under the condition that the second M-type three-position four-way electromagnetic valve 13 is not electrified, the top cylinder 12 can be kept in a static state, non-pressure sliding cannot occur, and a good safety protection effect is achieved.
A second pilot overflow valve 15 is arranged between the top cylinder 12 and the second M-shaped three-position four-way electromagnetic valve 13 in a bypassing mode, and the second pilot overflow valve can overflow when the cavity of the top cylinder 12 exceeds the set pressure of the cavity, so that the risk caused by overhigh pressure in the cavity of the main cylinder 3 is prevented.
The adaptability that carries out according to actual demand all is in the protection scope of the utility model.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides a single action sheet metal punching press hydraulic system, its characterized in that, includes oil tank, hydraulic pump and master cylinder, the hydraulic pump sets up in the oil tank, the hydraulic pump pass through the circular telegram position of first M type tribit four-way solenoid valve with the oil feed chamber of master cylinder is connected, the oil return chamber of master cylinder loops through the circular telegram position of first M type tribit four-way solenoid valve and the outage position of two-position four-way electromagnetic directional valve with the oil tank is connected, the export of hydraulic pump loops through the outage position of first M type tribit four-way solenoid valve and the outage position of two-position four-way electromagnetic directional valve with the oil tank is connected.
2. The single-acting sheet stamping hydraulic system according to claim 1, wherein an electromagnetic ball valve with a quick unloading function is arranged between an oil outlet cavity in the main cylinder stamping process and the first M-type three-position four-way electromagnetic valve.
3. The single-acting sheet punching hydraulic system according to claim 1, wherein a balance valve is provided between an oil outlet chamber in the main cylinder punching process and the first M-type three-position four-way solenoid valve.
4. The hydraulic system for single-action sheet stamping according to claim 1, wherein a first direct-acting overflow valve is arranged between the oil outlet cavity in the main cylinder stamping process and the first M-type three-position four-way solenoid valve in a bypassing manner.
5. The hydraulic system for single-action sheet stamping according to claim 1, wherein a first pilot-operated relief valve is arranged between the oil outlet cavity and the first M-type three-position four-way solenoid valve in the return process of the master cylinder in a bypass manner.
6. The hydraulic system for single-action sheet punching according to claim 1, wherein a second direct-acting overflow valve is arranged at the outlet of the hydraulic pump in a bypass mode.
7. The single-acting sheet punching hydraulic system according to claim 1, wherein an oil outlet chamber in a return process of the master cylinder is connected with the oil tank through a liquid charging valve, and the hydraulic pump is connected with the liquid charging valve through a power-on position of the two-position four-way electromagnetic directional valve.
8. The single-acting sheet punching hydraulic system according to claim 1, further comprising a top cylinder, wherein the hydraulic pump is connected to an oil inlet chamber of the top cylinder through an energization position of a second M-type three-position four-way solenoid valve, an oil return chamber of the top cylinder is connected to the oil tank sequentially through an energization position of the second M-type three-position four-way solenoid valve, a deenergization position of the first M-type three-position four-way solenoid valve, and a deenergization position of the two-position four-way solenoid directional valve, and an outlet of the hydraulic pump is connected to the oil tank sequentially through an deenergization position of the second M-type three-position four-way solenoid valve, a deenergization position of the first M-type three-position four-way solenoid valve, and a deenergization position of the two-position four-way solenoid directional valve.
9. The single acting sheet punching hydraulic system of claim 8, wherein a stack pilot operated check valve is provided between the top cylinder and the second M-type three-position four-way solenoid valve.
10. The hydraulic single-action sheet stamping system according to claim 8, wherein a second pilot-operated overflow valve is arranged between the top cylinder and the second M-type three-position four-way solenoid valve in a bypassing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223108885.6U CN218669996U (en) | 2022-11-23 | 2022-11-23 | Single-action sheet stamping hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223108885.6U CN218669996U (en) | 2022-11-23 | 2022-11-23 | Single-action sheet stamping hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218669996U true CN218669996U (en) | 2023-03-21 |
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ID=85537656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223108885.6U Active CN218669996U (en) | 2022-11-23 | 2022-11-23 | Single-action sheet stamping hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218669996U (en) |
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2022
- 2022-11-23 CN CN202223108885.6U patent/CN218669996U/en active Active
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