CN103144346B - Driving device and method for movable working table of press, and press - Google Patents
Driving device and method for movable working table of press, and press Download PDFInfo
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- CN103144346B CN103144346B CN201310050145.8A CN201310050145A CN103144346B CN 103144346 B CN103144346 B CN 103144346B CN 201310050145 A CN201310050145 A CN 201310050145A CN 103144346 B CN103144346 B CN 103144346B
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Abstract
The invention discloses a driving device and method for a movable working table of a press, and a press. The driving device comprises a jack-up cylinder, a jack-up cylinder driver, a clamping cylinder, a clamping cylinder driver, a hydraulic-operated check valve, a two-position four-way single electrical control ball valve, a first pressure sensor, a second pressure sensor, a two-position four-way dual electrical control solenoid valve, an overflow valve, a motor, a gear pump and a pneumatic pump, wherein a first contact of the hydraulic-operated check valve is connected with the control terminal of the jack-up cylinder driver and the control terminal of the clamping cylinder driver, and a second contact of the hydraulic-operated check valve is connected with the input terminal of the clamping cylinder driver; two ends of the two-position two-way single electrical control ball valve are connected in series between the control terminal of the jack-up cylinder driver and the control terminal of the clamping cylinder driver; and the reversing terminal of the two-position four-way dual electrical control solenoid valve is connected with the second contact, and the first contact is electrically grounded through the straight-through terminal of the two-position four-way dual electrical control solenoid valve. The invention also discloses a press equipped with the driving device and a driving method for a movable working table of the press.
Description
Technical field
The present invention relates to a kind of drive unit and the forcing press of this drive unit is installed, the driving method of the travelling table of the drive unit particularly relating to a kind of moveable platform of press, the forcing press being provided with this drive unit and this forcing press.
Background technology
Travelling table is indispensable critical function parts in big-and-middle-sized punching machine, is mainly used in easily and quickly more mold exchange, enhances productivity.General baby press is furnished with a travelling table; Large pressing machine with become linear pressure machine and be then furnished with two travelling tables, a workbench works in forcing press, and another carries out die change operation outside forcing press, can reduce the dead time of forcing press like this, drastically increases the production efficiency of forcing press.
Moveable platform of press drives into, output and can be divided into left and right open form and front and back open form, is which kind of mode of starting all needs a set of hydraulic booster system just can complete.Travelling carriage drives into and needs clamping cylinder to be clamped forcing press when falling just can to work, and when travelling carriage is outputed, jack-up cylinder must first jack-up travelling carriage, and travelling carriage just can be outputed.
In the most frequently used hydraulic clamp jack-up loop, the multiplex air driven pump of control mode provides hydraulic oil, and can meet the basic demand that moveable platform of press controls, principle is simple, practical, and cost is low.But jack-up cylinder falling speed cannot be controlled, and easily causes damage.After increase hydraulic control one-way valve and choke valve in the loop, increase dwell time and processing safety, but now in conventional loop these two demands be not met.
Summary of the invention
In order to overcome the problem that dwell time in existing loop is not enough and processing safety is lower, the present invention is necessary to provide a kind of drive unit of moveable platform of press, the driving method of the travelling table that is provided with the forcing press of this drive unit and forcing press.
The present invention is achieved in that a kind of drive unit of moveable platform of press, its clamping for the travelling table of driving pressure machine or jack-up, and this drive unit comprises:
Jack-up cylinder;
Jack-up cylinder driver, it is for driving this jack-up cylinder;
Clamping cylinder;
Clamping cylinder driver, it is for driving this clamping cylinder;
Hydraulic control one-way valve, its first contact is connected with the control end of this jack-up cylinder driver, the control end of this clamping cylinder driver, and its second contact is connected to the input of this clamping cylinder driver;
2/2-way list electric-controlled ball valve, between the control end that its two ends are serially connected in this jack-up cylinder driver and the control end of this clamping cylinder driver;
First pressure sensor, between its control end being connected to this jack-up cylinder driver and the first contact of this hydraulic control one-way valve;
Second pressure sensor, it is connected between the input of this clamping cylinder driver and the second contact of this hydraulic control one-way valve;
Two two electric control solenoid valves of four-way, its commutation end is connected to this second contact, and this first contact is by the straight-through end electrical ground of the two electric control solenoid valve of these two four-ways;
Overflow valve, its two ends be serially connected in the two electric control solenoid valve of these two four-ways commutation end and straight-through hold between;
Motor;
Gear pump, the commutation end of the two electric control solenoid valve of its output and this two four-ways is connected, its earth terminal electrical ground, and its input is connected to this motor;
Air driven pump, the commutation end of the two electric control solenoid valve of two four-ways in its one end and this is connected, its other end electrical ground.
As the further improvement of such scheme, be provided with between this air driven pump and its source of the gas:
Oil sprayer, its one end is connected with the input of this air driven pump;
Pressure-reducing valve, its one end is connected to the other end of this oil sprayer;
Drop separator, its one end is connected to the other end of this pressure-reducing valve, and its other end is connected to source of the gas.
Preferably, brass stop valve is also connected with between this pressure-reducing valve and this drop separator.
Preferably, brass stop valve is also connected with between this source of the gas and this drop separator.
The present invention also provides a kind of forcing press, and it comprises travelling table and the drive unit for the clamping or jack-up that drive this travelling table, and this drive unit comprises:
Jack-up cylinder;
Jack-up cylinder driver, it is for driving this jack-up cylinder;
Clamping cylinder;
Clamping cylinder driver, it is for driving this clamping cylinder;
Hydraulic control one-way valve, its first contact is connected with the control end of this jack-up cylinder driver, the control end of this clamping cylinder driver, and its second contact is connected to the input of this clamping cylinder driver;
2/2-way list electric-controlled ball valve, between the control end that its two ends are serially connected in this jack-up cylinder driver and the control end of this clamping cylinder driver;
First pressure sensor, between its control end being connected to this jack-up cylinder driver and the first contact of this hydraulic control one-way valve;
Second pressure sensor, it is connected between the input of this clamping cylinder driver and the second contact of this hydraulic control one-way valve;
Two two electric control solenoid valves of four-way, its commutation end is connected to this second contact, and this first contact is by the straight-through end electrical ground of the two electric control solenoid valve of these two four-ways;
Overflow valve, its two ends be serially connected in the two electric control solenoid valve of these two four-ways commutation end and straight-through hold between;
Motor;
Gear pump, the commutation end of the two electric control solenoid valve of its output and this two four-ways is connected, its earth terminal electrical ground, and its input is connected to this motor;
Air driven pump, the commutation end of the two electric control solenoid valve of two four-ways in its one end and this is connected, its other end electrical ground.
As the further improvement of such scheme, be provided with between this air driven pump and its source of the gas:
Oil sprayer, its one end is connected with the input of this air driven pump;
Pressure-reducing valve, its one end is connected to the other end of this oil sprayer;
Drop separator, its one end is connected to the other end of this pressure-reducing valve, and its other end is connected to source of the gas.
Preferably, brass stop valve is also connected with between this pressure-reducing valve and this drop separator.
Preferably, brass stop valve is also connected with between this source of the gas and this drop separator.
The present invention also provides a kind of driving method of travelling table of above-mentioned forcing press, this driving method comprises the following steps: when travelling table needs to output, motor-driven gear pump is bought oil, the commutation end electromagnet energising of two two electric control solenoid valves of four-way, clamping cylinder first loosens, jack-up cylinder is again by travelling table jack-up, and forcing press outputed by travelling table.
As the further improvement of such scheme, when travelling table drives into, the straight-through end electromagnet energising of two two electric control solenoid valves of four-way, the electromagnet energising of 2/2-way list electric-controlled ball valve, jack-up cylinder falls due to the deadweight of travelling table, and travelling table clamps by clamping cylinder.
The drive unit of moveable platform of press of the present invention, the advantage of driving method being provided with the forcing press of this drive unit and the travelling table of forcing press are: multiple functional, relative to integral type clamping, structure is simple jack-up cylinder body, clamping force is large, system pressure not high (native system operating pressure is at below 16MPa); Automatic pressure-maintaining can not only be realized when motor disconnects, reduce components and parts service wear, and continuity work can be realized, increase safety coefficient, ensure personnel and device security.
Accompanying drawing explanation
Fig. 1 is the structural representation of the movable work table driving device of the forcing press that better embodiment of the present invention provides.
Fig. 2 is the electromagnet action schedule of the 2/2-way list electric-controlled ball valve of forcing press in Fig. 1.
Primary symbols illustrates: clamping cylinder 1, jack-up cylinder 2, first pressure sensor 3,2/2-way list electric-controlled ball valve 4, hydraulic control one-way valve 5, two four-ways two electric control solenoid valve 6, overflow valve 7, gear pump 8, motor 9, air driven pump 10, oil sprayer 11, pressure-reducing valve 12, brass stop valve 13, drop separator 14, jack-up cylinder driver 15 and clamping cylinder driver 16, second pressure sensor 17, commutation end Y1, straight-through end Y2, electromagnet Y3.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, it is the structural representation of the movable work table driving device of the punching machine that better embodiment of the present invention provides, and this forcing press comprises travelling table (not shown) and the drive unit for the clamping and jack-up that drive this travelling table.
This drive unit comprises clamping cylinder 1, jack-up cylinder 2, first pressure sensor 3, second pressure sensor 17,2/2-way list electric-controlled ball valve 4, hydraulic control one-way valve 5, two four-ways two electric control solenoid valve 6, overflow valve 7, gear pump 8, motor 9, air driven pump 10, jack-up cylinder driver 15 and clamping cylinder driver 16.
Jack-up cylinder driver 15 is for driving this jack-up cylinder 2; Clamping cylinder driver 16 is for driving this clamping cylinder 1.First contact of hydraulic control one-way valve 5 is connected with the control end of this jack-up cylinder driver 15, the control end of this clamping cylinder driver 16, and its second contact is connected to the input of this clamping cylinder driver 16.
Between the control end that the two ends of 2/2-way list electric-controlled ball valve 4 are serially connected in this jack-up cylinder driver 15 and the control end of this clamping cylinder driver 16; Between the control end that first pressure sensor 3 is connected to this jack-up cylinder driver 15 and the first contact of this hydraulic control one-way valve 5; Second pressure sensor 17 is connected between the input of this clamping cylinder driver 16 and the second contact of this hydraulic control one-way valve 5.
The commutation end of two two electric control solenoid valves 6 of four-way is connected to this second contact, and this first contact is by the straight-through end electrical ground of the two electric control solenoid valve 6 of these two four-ways.The two ends of overflow valve 7 be serially connected in the two electric control solenoid valve 6 of these two four-ways commutation end and straight-through hold between.The commutation end of the two electric control solenoid valve 6 of output and this two four-ways of gear pump 8 is connected, and its earth terminal electrical ground, its input is connected to this motor 9.
The commutation end of the two electric control solenoid valve 6 of one end and this two four-ways of air driven pump 10 is connected, its other end electrical ground.Be provided with between this air driven pump 10 and its source of the gas: oil sprayer 11, its one end is connected with the input of this air driven pump 10; Pressure-reducing valve 12, its one end is connected to the other end of this oil sprayer 11; Drop separator 13, its one end is connected to the other end of this pressure-reducing valve 12, and its other end is connected to source of the gas.Preferably, also brass stop valve 13 can be connected between this pressure-reducing valve 12 and this drop separator 14 and between this source of the gas and this drop separator 14.
When punching machine replacing mold movement workbench needs to output, motor 9 driving gear pump 8 is bought oil, the commutation end Y1 electromagnet energising of two two electric control solenoid valves 6 of four-way, and clamping cylinder 1 first loosens, jack-up cylinder 2 is again by travelling table jack-up, and forcing press outputed by travelling table.After operating personnel more finish changing mould, travelling table drives forcing press into, the now straight-through end Y2 electromagnet energising of two two electric control solenoid valves 6 of four-way, the electromagnet Y3 of 2/2-way list electric-controlled ball valve 4 is energized, jack-up cylinder 2 falls due to the deadweight of travelling table, and travelling table clamps by clamping cylinder 1.
The effect of clamping cylinder 1 is clamped by the base of travelling table and forcing press; because the base top surface of travelling table bottom surface and forcing press needs close contact; base can be provided with a set of both detections to fit the analog quantity proximity switch of degree; gap is there is between two faces in this proximity switch once detect; electromagnet Y3 just no power; clamping cylinder 1 cannot complete pinching action; be energized again etc. electromagnet Y3 after fixing a breakdown; complete clamping; so just protect travelling table to be without prejudice, be illustrated in figure 2 electromagnet Y3 action schedule.
For making other actions of native system action energy heel pressure machine realize safety interlocking, be provided with in jack-up cylinder 2 bottom jack-up put in place proximity switch detect, if detect, jack-up is not in place, and travelling carriage does not then allow to output.Clamping cylinder pipeline and jack-up earthen pipe road are respectively equipped with G1, G2 pressure switch (i.e. the first pressure sensor 3 and the second pressure sensor 17); be used for detecting jack-up, clamping pressure; when pressure does not reach setting value, other action of forcing press can not complete, and plays safeguard protection effect.
Motor 9, gear pump 8 and air driven pump 10 form a set of air driven pump oiling device of the present invention.When motor 9 driving gear pump 8 buys oil setting pressure, motor 9 stops, realize oil sealing function by the hydraulic control one-way valve in pipeline simultaneously, to hydraulic cylinder pressurize, but along with the prolongation of time, reveal or exist, when pressure is reduced to certain value, air driven pump 10 automatically starts and starts to buy oil, and re-establishes vapor liquid equilibrium, realizes pressurize to system.So just protect motor 9, do not need frequent starting to make up the pressure loss of system.
The drive unit of moving platform of mechanical press of the present invention and be provided with the punching machine of this drive unit, multiple functional, relative to integral type clamping, structure is simple jack-up cylinder body, and clamping force is large, system pressure not high (native system operating pressure is at below 16MPa); Automatic pressure-maintaining can not only be realized when motor disconnects, reduce components and parts service wear, and continuity work can be realized, increase safety coefficient, ensure personnel and device security.
Except several frequently seen moveable platform of press jack-up presented hereinbefore, fall and clamp, loosen except control mode, also has some other control mode, as binding clasp adopts single-acting cylinder, hydraulic clamp spring reset, it is first-class that the jack-up cylinder also had is placed on workbench, but more rare, their control principle is substantially the same with principle presented hereinbefore, no longer introduces here.Forcing press user can select suitable control mode according to the requirement of oneself, to meet the needs of oneself.The hydraulic principle of jack-up cylinder and clamping cylinder is also uncomplicated, but its control mode is constantly improved along with the development of hydraulic technique, to meet the safety requirements in the requirement of forcing press user, the control overflow of forcing press itself and country variant, area better.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a drive unit for moveable platform of press, its clamping for the travelling table of driving pressure machine or jack-up, is characterized in that, this drive unit comprises:
Jack-up cylinder;
Jack-up cylinder driver, it is for driving this jack-up cylinder;
Clamping cylinder;
Clamping cylinder driver, it is for driving this clamping cylinder;
Hydraulic control one-way valve, its first contact is connected with the control end of this jack-up cylinder driver, the control end of this clamping cylinder driver, and its second contact is connected to the input of this clamping cylinder driver;
2/2-way list electric-controlled ball valve, between the control end that its two ends are serially connected in this jack-up cylinder driver and the control end of this clamping cylinder driver;
First pressure sensor, between its control end being connected to this jack-up cylinder driver and the first contact of this hydraulic control one-way valve;
Second pressure sensor, it is connected between the input of this clamping cylinder driver and the second contact of this hydraulic control one-way valve;
Two two electric control solenoid valves of four-way, its commutation end is connected to this second contact, and this first contact is by the straight-through end electrical ground of the two electric control solenoid valve of these two four-ways;
Overflow valve, its two ends be serially connected in the two electric control solenoid valve of these two four-ways commutation end and straight-through hold between;
Motor;
Gear pump, the commutation end of the two electric control solenoid valve of its output and this two four-ways is connected, its earth terminal electrical ground, and its input is connected to this motor;
Air driven pump, the commutation end of the two electric control solenoid valve of two four-ways in its one end and this is connected, its other end electrical ground.
2. the drive unit of moveable platform of press as claimed in claim 1, is characterized in that: be provided with between this air driven pump and its source of the gas:
Oil sprayer, its one end is connected with the input of this air driven pump;
Pressure-reducing valve, its one end is connected to the other end of this oil sprayer;
Drop separator, its one end is connected to the other end of this pressure-reducing valve, and its other end is connected to source of the gas.
3. the drive unit of moveable platform of press as claimed in claim 2, is characterized in that: be also connected with brass stop valve between this pressure-reducing valve and this drop separator.
4. the drive unit of moveable platform of press as claimed in claim 2, is characterized in that: be also connected with brass stop valve between this source of the gas and this drop separator.
5. a forcing press, it comprises travelling table and the drive unit for the clamping or jack-up that drive this travelling table, and it is characterized in that, this drive unit comprises:
Jack-up cylinder;
Jack-up cylinder driver, it is for driving this jack-up cylinder;
Clamping cylinder;
Clamping cylinder driver, it is for driving this clamping cylinder;
Hydraulic control one-way valve, its first contact is connected with the control end of this jack-up cylinder driver, the control end of this clamping cylinder driver, and its second contact is connected to the input of this clamping cylinder driver;
2/2-way list electric-controlled ball valve, between the control end that its two ends are serially connected in this jack-up cylinder driver and the control end of this clamping cylinder driver;
First pressure sensor, between its control end being connected to this jack-up cylinder driver and the first contact of this hydraulic control one-way valve;
Second pressure sensor, it is connected between the input of this clamping cylinder driver and the second contact of this hydraulic control one-way valve;
Two two electric control solenoid valves of four-way, its commutation end is connected to this second contact, and this first contact is by the straight-through end electrical ground of the two electric control solenoid valve of these two four-ways;
Overflow valve, its two ends be serially connected in the two electric control solenoid valve of these two four-ways commutation end and straight-through hold between;
Motor;
Gear pump, the commutation end of the two electric control solenoid valve of its output and this two four-ways is connected, its earth terminal electrical ground, and its input is connected to this motor;
Air driven pump, the commutation end of the two electric control solenoid valve of two four-ways in its one end and this is connected, its other end electrical ground.
6. forcing press as claimed in claim 5, is characterized in that: be provided with between this air driven pump and its source of the gas:
Oil sprayer, its one end is connected with the input of this air driven pump;
Pressure-reducing valve, its one end is connected to the other end of this oil sprayer;
Drop separator, its one end is connected to the other end of this pressure-reducing valve, and its other end is connected to source of the gas.
7. forcing press as claimed in claim 6, is characterized in that: be also connected with brass stop valve between this pressure-reducing valve and this drop separator.
8. forcing press as claimed in claim 6, is characterized in that: be also connected with brass stop valve between this source of the gas and this drop separator.
9. the driving method as the travelling table of the forcing press in claim 5 to 8 as described in any one, it is characterized in that: this driving method comprises the following steps: when travelling table needs to output, motor-driven gear pump is bought oil, the commutation end electromagnet energising of two two electric control solenoid valves of four-way, clamping cylinder first loosens, jack-up cylinder is again by travelling table jack-up, and forcing press outputed by travelling table.
10. the driving method of the travelling table of forcing press as claimed in claim 9, it is characterized in that: when travelling table drives into, the straight-through end electromagnet energising of two two electric control solenoid valves of four-way, the electromagnet energising of 2/2-way list electric-controlled ball valve, jack-up cylinder falls due to the deadweight of travelling table, and travelling table clamps by clamping cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310050145.8A CN103144346B (en) | 2013-02-06 | 2013-02-06 | Driving device and method for movable working table of press, and press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310050145.8A CN103144346B (en) | 2013-02-06 | 2013-02-06 | Driving device and method for movable working table of press, and press |
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| CN103144346A CN103144346A (en) | 2013-06-12 |
| CN103144346B true CN103144346B (en) | 2015-05-27 |
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| CN201310050145.8A Active CN103144346B (en) | 2013-02-06 | 2013-02-06 | Driving device and method for movable working table of press, and press |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103522575B (en) * | 2013-10-22 | 2015-05-13 | 宁波汇众粉末机械制造有限公司 | Mechanism powder forming machine and quantitative oil supply system |
| CN103802355B (en) * | 2013-10-23 | 2015-09-23 | 南通皋液液压机有限公司 | A kind of hydraulic press active operation platform clamp locking structure |
| CN103568355B (en) * | 2013-11-01 | 2015-09-23 | 南通皋液液压机有限公司 | A kind of hydraulic press movable table clamping means and Special clamping device thereof |
| CN107269608B (en) * | 2017-07-25 | 2018-10-16 | 广州中船文冲船坞有限公司 | FPSO shipping rudder blade hydraulic Lock systems |
| CN109080207A (en) * | 2017-08-18 | 2018-12-25 | 沃得精机(中国)有限公司 | Die of press clamps the hydraulic and electrical control gear with mould ejection |
| CN109079036A (en) * | 2017-09-07 | 2018-12-25 | 沃得精机(中国)有限公司 | Device for clamping mould |
| CN108302093A (en) * | 2018-01-22 | 2018-07-20 | 宁波固安力机械科技有限公司 | A kind of connecting rod oil pressure locking device of punching machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101264675A (en) * | 2007-03-15 | 2008-09-17 | 济南二机床集团有限公司 | Clamping jacking control device for pressing machine mobile working bench |
| CN201338403Y (en) * | 2009-01-19 | 2009-11-04 | 东风汽车股份有限公司 | High-pressure quick electric control hydraulic control device for movable workbench of press |
| CN101913086B (en) * | 2010-07-14 | 2012-07-18 | 合肥合锻机床股份有限公司 | Leak-free hydraulic system of mobile workbench |
| CN201756956U (en) * | 2010-08-26 | 2011-03-09 | 四川宏华石油设备有限公司 | Hydraulic control device of an injection head clamping device |
| CN201913822U (en) * | 2010-11-03 | 2011-08-03 | 荣成锻压机床有限公司 | Control device for clamping and jacking movable working platform |
| CN102476470A (en) * | 2010-11-23 | 2012-05-30 | 大连创达技术交易市场有限公司 | High-precision fully automatic press machine |
| CN202573057U (en) * | 2012-03-07 | 2012-12-05 | 南通润德机械科技有限公司 | Work bench floating and clamping mechanism for mechanical press |
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Address after: 230601 Hefei economic and Technological Development Zone, Anhui, Ziyun Patentee after: Hefei forging intelligent manufacturing Limited by Share Ltd Address before: 230601 Hefei economic and Technological Development Zone, Anhui, Ziyun Patentee before: Hefei Metalforming Machine Tool Co., Ltd. |