CN201257469Y - Inlet and exhaust device of pressing machine air cushion - Google Patents
Inlet and exhaust device of pressing machine air cushion Download PDFInfo
- Publication number
- CN201257469Y CN201257469Y CNU2008201858791U CN200820185879U CN201257469Y CN 201257469 Y CN201257469 Y CN 201257469Y CN U2008201858791 U CNU2008201858791 U CN U2008201858791U CN 200820185879 U CN200820185879 U CN 200820185879U CN 201257469 Y CN201257469 Y CN 201257469Y
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- valve
- air cushion
- air
- stop valve
- automatically controlled
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Abstract
The utility model belongs to an air intake and air exhaust device of a press machine air cushion, which is used for controlling the air intake and the air exhaust of the press machine air cushion and belongs to the technical field of press machines. The utility model improves the air intake and air exhaust structure of the press machine air cushion and is characterized in that a structural valve, a two-position and three-way electric stop valve and a two-position and five-way electric stop valve are arranged in an air cushion pipeline, and the structural valve is respectively controlled by the two-position and three-way electric stop valve and the two-position and five-way electric stop valve for ensuring the air cushion to be slowly jacked and fall off during the air intake and the air exhaust so as to reduce the impact between the air cushion and a splint and a base in a movable worktable. The utility model has simple and reasonable structure, not only can reduce the air intake speed and the air exhaust speed of the air cushion, but also is favorable to assembly so as to favorably prolong the service life of the press machine, ensure the use requirements and have strong practicability and prominent economic benefits.
Description
Technical field
The utility model relates to a kind of air inlet and outlet device of forcing press air cushion, is used for the air inlet of forcing press air cushion and the control of exhaust, belongs to the press technologies field.
Background technology
Forcing press is furnished with air cushion (pad stretches) device usually, is mainly used in flanging and head part in the punching course.In most of air cushion of design, the caliber of air inlet and exhaust is the same big at present, and its air cushion all exists shock problem when air inlet fast, exhaust.When air cushion begins air inlet, because the pipe diameter that is arranged on the air cushion air inlet pipeline is bigger, cause the quick air inlet of air cushion, rise excessive velocities, thereby cause the air cushion apical cap to impact the interior supporting plate of travelling table, it is too fast to make ejector beam on the supporting plate eject work speed, brings very big inconvenience to the operator.Air cushion is when exhaust, because exhaust velocity is fast, makes parts such as air cushion apical cap, piston and piston rod descend fast under the effect of deadweight, with the positive stop generation bump of air cushion.If long-time use like this, becoming flexible will appear in the hold-down screw between air cushion and the base, and then can damage equipment.
Summary of the invention
The purpose of this utility model is at the air cushion of existing forcing press excessive velocities when the air inlet, causes the air cushion apical cap to impact supporting plate in the travelling table, and it is too fast to make ejector beam on the supporting plate eject work speed, brings very big inconvenience to the operator; Excessive velocities during exhaust, make parts such as air cushion apical cap, piston and piston rod under the effect of deadweight, descend fast, produce deficiencies such as bump with the positive stop of air cushion, provide and not only can reduce air cushion inlet and outlet speed, but also help assembling, thereby guarantee the air inlet and outlet device of a kind of forcing press air cushion of instructions for use.
The purpose of this utility model is achieved through the following technical solutions, a kind of air inlet and outlet device of forcing press air cushion, comprise air cushion, the intake and exhaust pipeline that connects air cushion, air accumulator, it is characterized in that, in the intake and exhaust pipeline of air cushion and air accumulator, be connected to the automatically controlled stop valve of two-position three way, the automatically controlled stop valve of two-position five-way of structure valve and difference control structure valve.
Described structure valve is by valve body, the interface of the connection air cushion of valve body one end and the gas port that connects stop valve, the interface of the connection air accumulator of the valve body other end, the piston that the piston rod two ends in the gas port of the connection stop valve that has on the valve gap of valve body both sides, valve pocket connect constitutes.
The gas port of the stop valve that corresponding with the structure valve respectively side valve of the automatically controlled stop valve of two-position five-way covers, connect with the gas port that is connected stop valve near structure valve one end of respective side; The automatically controlled stop valve of two-position three way is connected with the gas port of the stop valve that structure valve one side valve covers.
The utility model is the improvement to existing forcing press air cushion intake and exhaust structure, main feature is to be provided with the structure valve in the air cushion pipeline, the automatically controlled stop valve of two-position three way, the automatically controlled stop valve of two-position five-way, the structure valve is by the automatically controlled stop valve of two-position three way, the automatically controlled stop valve of two-position five-way is controlled respectively, can guarantee air cushion slow jack-up and landing when air intake-exhaust, will reduce the impact of supporting plate and base in air cushion and the travelling table like this, the utility model is simple and reasonable, both can reduce air cushion intake and exhaust speed, help assembling again, thereby help improving the service life of forcing press and guaranteeing instructions for use, have very strong practicality and remarkable economic efficiency.
Description of drawings
Fig. 1 structural representation that to be the utility model be connected with material jacking mechanism in the moveable platform of press;
Fig. 2 is the sectional structure schematic diagram of structure valve in the utility model;
Among the figure, 1 backing plate, 2 ejector beams, 3 supporting plates, 4 travelling tables, 5 air cushions, the automatically controlled stop valve of 6 two-position five-ways, the automatically controlled stop valve of 7 two-position three ways, 8 structure valves, 9 air accumulators, the interface of 10 air accumulators, the interface of 11 air cushions, A chamber, B chamber, C chamber.
The specific embodiment
Further specify the utility model with example in conjunction with the accompanying drawings, as shown in Figure 1, the utility model is by air cushion 5, the automatically controlled stop valve 6 of two-position five-way, the automatically controlled stop valve 7 of two-position three way, structure valve 8, air accumulator 9 and pipeline constitute, as shown in Figure 2, structure valve 8 is by valve body, the interface 11 of the connection air cushion of valve body one end and the B chamber gas port that connects stop valve, the interface 10 of the connection air accumulator of the valve body other end, the piston that piston rod two ends in the A chamber of the connection stop valve that has on the valve gap of valve body both sides, the C chamber gas port, valve pocket connect constitutes.
As shown in Figure 1, 2, by the automatically controlled stop valve 6 of control two-position five-way, the joint sequency of the automatically controlled stop valve 7 energising outages of two-position three way, allow A chamber, B chamber, the C chamber of structure valve 8 successively distinguish air inlet and exhaust, reach the purpose of commutation, thereby the speed of control air cushion 5 intake and exhaust slowly rises when reaching air cushion 5 air inlets; Slowly descend during air cushion 5 exhausts.Before air cushion 5 is started working, automatically controlled stop valve 6 ventilations of two-position five-way, structure valve 8 connects air cushion and C chamber owing to master cylinder B chamber air inlet promotes the piston fast moving.When air cushion 5 is started working, automatically controlled stop valve 7 energisings of two-position three way, compressed air in the air accumulator 9 communicates by automatically controlled stop valve 7 of two-position three way and C chamber and enters air cushion, because automatically controlled stop valve 7 bores of two-position three way are less, so the pressure rises in the air cushion 5 is slower.When the air pressure in the air cushion 5 is increased to the deadweight that can overcome air cushion 5 and each several part when sliding the frictional force that produces relatively, air cushion 5 slowly rises; When air cushion is raised to maximum height, at this moment, automatically controlled stop valve 6 energisings of two-position five-way, the air inlet of A chamber promotes piston and moves down fast, and the air pressure in the air cushion 5 also reaches operating air pressure (air pressure of air accumulator and the air pressure balance of air cushion).Automatically controlled stop valve 7 outages of two-position three way, the pipeline that air accumulator 9 bores are bigger communicates with air cushion, at this moment just can work.
When 5 venting of need air cushion, automatically controlled stop valve 6 outages of two-position five-way, vent valve B chamber air inlet promotes piston and moves up fast, and air cushion 5 is by the exhaust of C chamber, because C chamber restriction is less, air cushion slowly descends, thereby reaches the purpose of vibration damping.
The automatically controlled stop valve 6 of two-position five-way in the utility model, the automatically controlled stop valve 7 of two-position three way are existing products, can be from market purchasing.
Claims (3)
1, a kind of air inlet and outlet device of forcing press air cushion, comprise air cushion, connect the intake and exhaust pipeline of air cushion, air accumulator, it is characterized in that, in the intake and exhaust pipeline of air cushion and air accumulator, be connected to the automatically controlled stop valve of two-position three way, the automatically controlled stop valve of two-position five-way of structure valve and difference control structure valve.
2, forcing press air cushion air inlet and outlet device according to claim 1, it is characterized in that, described structure valve is by valve body, the interface of the connection air cushion of valve body one end and the gas port that connects stop valve, the interface of the connection air accumulator of the valve body other end, the piston that piston rod two ends in the gas port of the connection stop valve that has on the valve gap of valve body both sides, valve pocket connect constitutes.
3, forcing press air cushion air inlet and outlet device according to claim 1, it is characterized in that, the gas port of the stop valve that corresponding with the structure valve respectively side valve of the automatically controlled stop valve of two-position five-way covers, connect with the gas port that is connected stop valve near structure valve one end of respective side; The automatically controlled stop valve of two-position three way is connected with the gas port of the stop valve that structure valve one side valve covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201858791U CN201257469Y (en) | 2008-09-16 | 2008-09-16 | Inlet and exhaust device of pressing machine air cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201858791U CN201257469Y (en) | 2008-09-16 | 2008-09-16 | Inlet and exhaust device of pressing machine air cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257469Y true CN201257469Y (en) | 2009-06-17 |
Family
ID=40771699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201858791U Expired - Fee Related CN201257469Y (en) | 2008-09-16 | 2008-09-16 | Inlet and exhaust device of pressing machine air cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201257469Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128155A (en) * | 2013-03-13 | 2013-06-05 | 徐州环球锻压机床有限公司 | Self-contained air cushion of mechanical press |
| CN104553029A (en) * | 2014-12-23 | 2015-04-29 | 东风汽车公司 | Press machine air pad ascending and descending control device and method based on power failure protection |
-
2008
- 2008-09-16 CN CNU2008201858791U patent/CN201257469Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128155A (en) * | 2013-03-13 | 2013-06-05 | 徐州环球锻压机床有限公司 | Self-contained air cushion of mechanical press |
| CN103128155B (en) * | 2013-03-13 | 2015-07-08 | 江苏省徐州锻压机床厂集团有限公司 | Self-contained air cushion of mechanical press |
| CN104553029A (en) * | 2014-12-23 | 2015-04-29 | 东风汽车公司 | Press machine air pad ascending and descending control device and method based on power failure protection |
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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 |
Granted publication date: 20090617 Termination date: 20140916 |
|
| EXPY | Termination of patent right or utility model |