CN203317788U - Hydraulic control system for quick punching of punching and shearing machine - Google Patents
Hydraulic control system for quick punching of punching and shearing machine Download PDFInfo
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- CN203317788U CN203317788U CN2013203746414U CN201320374641U CN203317788U CN 203317788 U CN203317788 U CN 203317788U CN 2013203746414 U CN2013203746414 U CN 2013203746414U CN 201320374641 U CN201320374641 U CN 201320374641U CN 203317788 U CN203317788 U CN 203317788U
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Abstract
The utility model discloses a hydraulic control system for quick punching of a punching and shearing machine. The hydraulic control system comprises an oil cylinder, a three-position four-way valve, a plunger pump, a motor, an overflow valve, a two-position four-way valve and a pressure relay, wherein the upper cavity of the coil cylinder is connected with an opening A of the three-position four-way valve and is also connected with an opening A of the two-position four-way valve; a pressure relay is arranged on an oil path; the lower cavity of the oil cylinder is connected with an opening B of the two-position four-way valve; an opening P of the two-position four-way valve is connected with an opening B of the three-position four-way valve; an opening P of the three-position four-way valve is communicated with an oil tank through the plunger pump; an opening T of the three-position four-way valve is directly communicated with the oil tank; the overflow valve is used for communicating the oil path between the opening P and opening T of the three-position four-way valve. The number of punching strokes of the punching and shearing machine is 12-26 n/m, i.e., the punching speed is improved by about 1.5 time of the existing punching speed; therefore, the working efficiency is greatly improved.
Description
Technical field
The utility model relates to the hydraulic control system of the quick punching of punching and shearing machine.
Background technology
During existing punching and shearing machine punching, the operation principle of hydraulic control system is: when the oil cylinder of punching station is descending, and the oil pipe oil-feed of cylinder upper cavity oil, the oil of oil cylinder lower cavity oil pipe is back to fuel tank.So the punching number of strokes of existing punching and shearing machine is 8-16 time/minute, so operating efficiency is low.
Summary of the invention
Problem to be solved in the utility model is to provide the hydraulic control system of the quick punching of punching and shearing machine, and it can increase the punching number of strokes of perforating press, increases work efficiency.
The hydraulic control system of the quick punching of the utility model punching and shearing machine, it comprises oil cylinder, three-position four-way valve, plunger displacement pump, motor, overflow valve, it also comprises two position four-way valves, pressure switch; The epicoele of oil cylinder is connected with the A mouth of three-position four-way valve, and the epicoele of oil cylinder is connected with the A mouth of two position four-way valves simultaneously, on this oil circuit, pressure switch is housed; The cavity of resorption of oil cylinder is connected with the B mouth of two position four-way valves, and the P mouth of two position four-way valves is connected with the B mouth of three-position four-way valve, and the P mouth of three-position four-way valve communicates with fuel tank by plunger displacement pump, and the T mouth of three-position four-way valve is logical fuel tank directly; Overflow valve is communicated with the P mouth of three-position four-way valve, T mouth oil circuit.
This new control system, by increased by two position four-way valves and pressure switch in original hydraulic control system, has changed the basic oil circuit of original valve group.When the oil cylinder of punching station is descending, the oil in the oil cylinder lower cavity oil pipe is not got back to fuel tank, and directly gets back to cylinder upper cavity oil.While working due to plunger displacement pump by hydraulic valve just fuel feeding given the epicoele of oil cylinder, so form altogether two oil circuit fuel feeding to the oil cylinder epicoele, fuel delivery is increased, thereby has accelerated the downstream rate of oil cylinder.When the piston rod of oil cylinder is encountered processing work and needed punching, pressure switch work, allow two position four-way valves outages, and mineralization pressure completes the punching operation.The punching number of strokes of this Novel flushing shearing machine is 12-26 time/minute, i.e. punching speed has approximately improved 1.5 times than existing punching speed, has therefore greatly improved operating efficiency.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of this novel hydraulic control system.
The specific embodiment
As can be seen from Figure 1, the hydraulic control system of the quick punching of this Novel flushing shearing machine, it comprises oil cylinder 1, three-position four-way valve 3, plunger displacement pump 5, motor 6, overflow valve 7, it also comprises two position four-way valves 4, pressure switch 2; The epicoele of oil cylinder 1 is connected with the A mouth of three-position four-way valve 3, and the epicoele of oil cylinder 1 is connected with the A mouth of two position four-way valves 4 simultaneously, and pressure switch 2 is housed on this oil circuit; The cavity of resorption of oil cylinder 1 be connected with the B mouth of two position four-way valves 4 (during energising), the P mouth of two position four-way valves 4 be connected with the B mouth of three-position four-way valve 3 (during outage), the P mouth of three-position four-way valve 3 communicates with fuel tank 10 by plunger displacement pump 5, and the T mouth of three-position four-way valve 3 is logical fuel tank 10 directly; Overflow valve 7 is communicated with the P mouth of three-position four-way valve 3, T mouth oil circuit.
As originally novel a kind of improved procedure, hydraulic system also comprises oil absorption filter 8, Pressure gauge 9, and oil absorption filter 8 is contained between plunger displacement pump 5 and fuel tank 10, and Pressure gauge 9 is contained in the top of plunger displacement pump 5.Can guarantee like this purity of fluid by oil absorption filter 8, can be monitored oil pressure easily by Pressure gauge 9.
This new control system, by increased by two position four-way valves and pressure switch in original hydraulic control system, has changed the basic oil circuit of original valve group.When the oil cylinder of punching station is descending, the oil in the oil cylinder lower cavity oil pipe is not got back to fuel tank, and directly gets back to cylinder upper cavity oil.While working due to plunger displacement pump by hydraulic valve just fuel feeding given the epicoele of oil cylinder, so form altogether two oil circuit fuel feeding to the oil cylinder epicoele, fuel delivery is increased, thereby has accelerated the downstream rate of oil cylinder.When the piston rod of oil cylinder is encountered processing work and needed punching, pressure switch work, allow two position four-way valves outages, and mineralization pressure completes the punching operation.The punching number of strokes of this Novel flushing shearing machine is 12-26 time/minute, i.e. punching speed has approximately improved 1.5 times than existing punching speed, has therefore greatly improved operating efficiency.
Claims (2)
1. the hydraulic control system of the quick punching of punching and shearing machine, it comprises oil cylinder (1), three-position four-way valve (3), plunger displacement pump (5), motor (6), overflow valve (7), it is characterized in that: further comprising two position four-way valves (4), pressure switch (2); The epicoele of oil cylinder (1) is connected with the A mouth of three-position four-way valve (3), and the epicoele of oil cylinder (1) is connected with the A mouth of two position four-way valves (4) simultaneously, and pressure switch (2) is housed on this oil circuit; The cavity of resorption of oil cylinder (1) is connected with the B mouth of two position four-way valves (4), the P mouth of two position four-way valves (4) is connected with the B mouth of three-position four-way valve (3), the P mouth of three-position four-way valve (3) communicates with fuel tank (10) by plunger displacement pump (5), and the T mouth of three-position four-way valve (3) is logical fuel tank (10) directly; Overflow valve (7) is communicated with the P mouth of three-position four-way valve (3), T mouth oil circuit.
2. hydraulic control system according to claim 1, it is characterized in that: further comprising oil absorption filter (8), Pressure gauge (9), oil absorption filter (8) is contained between plunger displacement pump (5) and fuel tank (10), and Pressure gauge (9) is contained in the top of plunger displacement pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203746414U CN203317788U (en) | 2013-06-27 | 2013-06-27 | Hydraulic control system for quick punching of punching and shearing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203746414U CN203317788U (en) | 2013-06-27 | 2013-06-27 | Hydraulic control system for quick punching of punching and shearing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203317788U true CN203317788U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203746414U Expired - Fee Related CN203317788U (en) | 2013-06-27 | 2013-06-27 | Hydraulic control system for quick punching of punching and shearing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203317788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936135A (en) * | 2016-06-17 | 2016-09-14 | 安徽省东至县东鑫冲压件有限责任公司 | Stamping part preliminary mold mechanism |
-
2013
- 2013-06-27 CN CN2013203746414U patent/CN203317788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105936135A (en) * | 2016-06-17 | 2016-09-14 | 安徽省东至县东鑫冲压件有限责任公司 | Stamping part preliminary mold mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20170627 |