CN201684804U - Servo control system for plate bending machine - Google Patents
Servo control system for plate bending machine Download PDFInfo
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- CN201684804U CN201684804U CN2010200333454U CN201020033345U CN201684804U CN 201684804 U CN201684804 U CN 201684804U CN 2010200333454 U CN2010200333454 U CN 2010200333454U CN 201020033345 U CN201020033345 U CN 201020033345U CN 201684804 U CN201684804 U CN 201684804U
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Abstract
The utility model discloses a servo control system for a plate bending machine. The servo control system comprises a hydraulic system and a servo drive system, wherein the hydraulic system comprises a hydraulic pump, a hydraulic cylinder, a three-position four-way solenoid valve, a first two-position two-way solenoid valve and a second two-position two-way solenoid valve which are all driven by a servomotor; the servo drive system comprises a numerical control system and a servo-driven controller; and the numerical control system controls the working function of the solenoid valves and the working state of the servo-driven controller through a relay, so as to adjust the running speed of a slide block of the hydraulic cylinder in different stages and enable the servomotor to stop when the slide block does not move, thereby achieving the energy-saving effect. Besides, the service life of hydraulic oil consumed by the equipment is prolonged by one time.
Description
Technical field
The utility model relates to the drive system of plate bending machine, relates in particular to a kind of servo-control system.
Background technology
Current plate bending machine adopts alternating current generator to drive hydraulic system more, and when such drive system was in actual working state or readiness for operation at equipment, alternating current generator must be in running status for a long time, and hydraulic oil also is in the recurrent state of not stopping all the time.If equipment is under this kind duty for a long time, not only cause the electric energy waste, the quality and the service life of also reducing hydraulic oil greatly.
Summary of the invention
The objective of the invention is provides a kind of energy-saving servo-control system in order to solve the defective of existing drive system.
The technical scheme that the utility model adopted is: a kind of servo-control system of plate bending machine comprises the servo drive system of hydraulic system and described hydraulic system; Described hydraulic system comprises by the hydraulic pump of driven by servomotor, hydraulic cylinder, three position four-way electromagnetic valve, first two-position two-way solenoid valve and second two-position two-way solenoid valve; The epicoele of described hydraulic cylinder is communicated with second hydraulic fluid port of three position four-way electromagnetic valve, first hydraulic fluid port of first two-position two-way solenoid valve and first hydraulic fluid port of second two-position two-way solenoid valve; Described hydraulic pump is communicated with the oil-in of three position four-way electromagnetic valve; The oil-in of the oil-in of the oil return opening of described three position four-way electromagnetic valve, first two-position two-way solenoid valve and second two-position two-way solenoid valve is communicated with fuel tank; First hydraulic fluid port of described three position four-way electromagnetic valve is communicated with the cavity of resorption of hydraulic cylinder by a check valve;
Described servo drive system comprises digital control system and servo-drive controller; Described digital control system has the floor push input interface, moves downward signal output port, moves downward signal output port at a slow speed, signal output port and pressure release inhibit signal output port move upward; Be connected with floor push between 24V and the described floor push input interface; The described coil that is connected with first relay between signal output port and the 0V that moves downward, the described coil that is connected with second relay between signal output port and the 0V that moves downward at a slow speed, described moving upward is connected with the coil of the 3rd relay between signal output port and the 0V, be connected with the coil of the 4th relay between described pressure release inhibit signal output port and the 0V;
The three-phase output of described servo-drive controller connects described servomotor, the first function port of described servo-drive controller provides signal by two branch roads that are connected in parallel, one of them branch road is in series with first normal open switch of described first relay and the normally closed switch of described second relay, is connected with first normal open switch of described the 3rd relay on another branch road; The second function port of described servo-drive controller provides signal by the branch road that two other is connected in parallel, one of them branch road is in series with second normal open switch of described first relay and the normal open switch of described second relay, is connected with second normal open switch of described the 3rd relay on another branch road;
The coil of the left position magnetic valve of described three position four-way electromagnetic valve is controlled by the 3rd normal open switch of described first relay that connects together and first normal open switch of described the 4th relay by the coil of the right position magnetic valve of the 3rd normal open switch control of described the 3rd relay, described three position four-way electromagnetic valve; The coil of the right position magnetic valve of first two-position two-way solenoid valve is by second normal open switch control of described the 4th relay; The coil of the right position magnetic valve of second two-position two-way solenoid valve is by the 4th normal open switch control of described the 3rd relay.
Preferably, the cavity of resorption of described hydraulic cylinder is communicated with fuel tank by one first overflow valve, is connected with second overflow valve between described hydraulic pump and the fuel tank; Be connected a choke valve between the oil-in of described first two-position two-way solenoid valve and the fuel tank.
Preferably, described digital control system also has the top dead-centre signal input port, is connected with the top dead-centre button between 24V and the described top dead-centre signal input port.
Usefulness of the present utility model: after the utility model changes former alternating current generator driving hydraulic system into the driven by servomotor hydraulic system, with the 3KW main drive motor is that example is adjusted, former AC machine drive system calculated by working every day in 8 hours, power consumption 24 is spent approximately, and its running time and preparation time respectively account for 50% approximately, spend and will waste electric energy 12 every day, use servo-control system described in the utility model can save half electric energy, obtained energy-saving effect preferably, and also can double the service life of the used hydraulic oil of equipment.
Description of drawings
Fig. 1 shows the hydraulic system in the servo-control system described in the utility model;
Fig. 2 shows the first of the servo drive system in the servo-control system described in the utility model;
Fig. 3 shows the second portion of the servo drive system in the servo-control system described in the utility model;
Fig. 4 shows the third part of the servo drive system in the servo-control system described in the utility model.
The specific embodiment
Now in conjunction with the accompanying drawings the specific embodiment of the present utility model is described.
Servo-control system described in the utility model comprise as shown in Figure 1 hydraulic system and the servo drive system shown in Fig. 2 to 4.Described hydraulic system comprises hydraulic pump, hydraulic cylinder 107, three position four-way electromagnetic valve 102, first two-position two-way solenoid valve 103 and second two-position two-way solenoid valve 104 that is driven by servomotor 108; Wherein, the meta function of described three position four-way electromagnetic valve 102 is the M type, when promptly it is positioned at meta, and hydraulic pump off-load, the two chambeies sealing of hydraulic cylinder; Position, the left side function of described first two-position two-way solenoid valve 103 and second two-position two-way solenoid valve 104 is check valve.The epicoele of described hydraulic cylinder 107 is communicated with the second hydraulic fluid port B of three position four-way electromagnetic valve 102, the first hydraulic fluid port A of first two-position two-way solenoid valve 103 and the first hydraulic fluid port A of second two-position two-way solenoid valve 103; Described hydraulic pump is communicated with the oil inlet P of three position four-way electromagnetic valve 102; The oil inlet P of the oil inlet P of the oil return inlet T of described three position four-way electromagnetic valve 102, first two-position two-way solenoid valve 103 and second two-position two-way solenoid valve 103 is communicated with fuel tank; The first hydraulic fluid port A of described three position four-way electromagnetic valve 102 is communicated with the cavity of resorption of hydraulic cylinder 107 by a check valve 105.In addition, the cavity of resorption of described hydraulic cylinder 107 can be communicated with fuel tank by one first overflow valve 106, be connected with second overflow valve 101 between described hydraulic pump and the fuel tank, at this, first overflow valve 106 that is arranged on the oil return line of hydraulic cylinder has the back pressure effect, and second overflow valve 101 has the effect of pressure regulation overflow.Can be connected a choke valve between the oil inlet P of described first two-position two-way solenoid valve 103 and the fuel tank.
Described servo drive system comprise as shown in Figure 2 digital control system 100 and servo-drive controller 200 as shown in Figure 3; Described digital control system 100 has top dead-centre signal input port 6, floor push input interface 3, moves downward signal output port 11, moves downward signal output port 10 at a slow speed, signal output port 9 and pressure release inhibit signal output port 12 move upward.Top dead-centre button SB5 is connected between 24V and the top dead-centre signal input port 6, and floor push SF1 is connected between 24V and the floor push input interface 3; The coil of the first relay K A1 is connected and moves downward between signal output port 11 and the 0V, the coil of the second relay K A2 is connected and moves downward at a slow speed between signal output port 10 and the 0V, the coil of the 3rd relay K A3 is connected and moves upward between signal output port 9 and the 0V, and the coil of the 4th relay K A4 is connected between pressure release inhibit signal output port 12 and the 0V.Described 24V was connected in series foot-operated total guard's valve SB1 and the total guard's valve SB2 of system earlier before inserting digital control system 100, to guarantee that when meeting emergency operating personnel can take the anxious measure that stops.
Three-phase output u, the v and the w of servo-drive controller 200 connect servomotor 108; The first function port SPD0 of servo-drive controller 200 provides signal by two branch roads that are connected in parallel, one of them branch road is in series with first normal open switch of the first relay K A1 and the normally closed switch of the second relay K A2, is connected with first normal open switch of the 3rd relay K A3 on another branch road; The second function port SPD1 of servo-drive controller 200 provides signal by the branch road that two other is connected in parallel, one of them branch road is in series with second normal open switch of the first relay K A1 and the normal open switch of the second relay K A2, is connected with second normal open switch of the 3rd relay K A3 on another branch road.By applying different control signals with the second function port SPD1 at the first function port SPD0, can change the rotating speed of servomotor 108, and then the action of control hydraulic cylinder 107.
As shown in Figure 4, the coil of position, the left side magnetic valve Y1 of three position four-way electromagnetic valve 102 shown in Figure 1 is by first normal open switch control by the 3rd normal open switch and the 4th relay K A4 of the first relay K A1 that connects together of the coil of the right position magnetic valve Y2 of the 3rd normal open switch control of the 3rd relay K A3, three position four-way electromagnetic valve 102; The coil of the right position magnetic valve Y3 of first two-position two-way solenoid valve 103 is by second normal open switch control of the 4th relay K A4; The coil of the right position magnetic valve Y4 of second two-position two-way solenoid valve 104 is by the 4th normal open switch control of the 3rd relay.
The operation principle of servo-control system described in the utility model is as follows:
After shelves material and slide block (being the piston of hydraulic cylinder) put in place behind bender and at top dead-centre, step on floor push SF1, this moment, digital control system 100 got the coil of the first relay K A1 according to pre-set programs, at this moment, shown in Fig. 3 and 4, the coil of right position magnetic valve Y2 gets, and the first function port SPD0 of servo-drive controller 200 obtains signal, therefore, servomotor 108 starts, at this moment the oil of hydraulic pump is by right epicoele that enters hydraulic cylinder 107 of three position four-way electromagnetic valve 102, and servomotor 108 descends at a high speed with the speed promotion slide block of 2000r/min; After slide block arrives clamping point, digital control system 100 gets the coil of the relay K A1 that wins and the coil of the second relay K A2 according to pre-set programs, at this moment, the coil of right position magnetic valve Y2 gets, and the second function port SPD1 of servo-drive controller 200 obtains signal, and servomotor 108 descends at a slow speed with the speed promotion slide block of 500r/min; When slide block arrives after bottom dead center, arrive the dwell time, begin to carry out pressure release, at this moment, digital control system 100 according to pre-set programs make the coil of the 3rd relay K A3 and the 4th relay K A4 coil all, make the win two-position two-way solenoid valve 103 and the second two-position two-way solenoid valve 104 all right position operation, the pressure of the epicoele of hydraulic cylinder 107 releases by first two-position two-way solenoid valve 103 and second two-position two-way solenoid valve 104, the pressure release time arrives, digital control system 100 makes the coil of the 3rd relay K A3 get according to pre-set programs, the position operation of three position four-way electromagnetic valve 102 left side, the 104 right position operations of second two-position two-way solenoid valve, and, the first function port SPD0 of servo-drive controller 200 and the second function port SPD1 all obtain signal, at this moment the oil of hydraulic pump enters the cavity of resorption of hydraulic cylinder 107 by the position, a left side of three position four-way electromagnetic valve 102, servomotor 108 moves upward with the speed promotion slide block of 1000r/min, when arriving top dead-centre, the first relay K A1, the second relay K A2 and the whole dead electricity of the 3rd relay K A3.Servo-drive controller 200 is obstructed, and servomotor 108 quits work, and once circulation finishes.
No matter which kind of position slide block is in, as long as connect top dead-centre button SB5, at this moment, digital control system 100 gets the coil of the 3rd relay K A3 according to pre-set programs, then three position four-way electromagnetic valve 102 left side position operation, the 104 right position operations of second two-position two-way solenoid valve, the first function port SPD0 of servo-drive controller 200 and the second function port SPD1 all connect, servomotor 108 moves upward with the speed promotion slide block of 1000r/min, and is out of service to top dead-centre.
Because servomotor 108 only just turns round when slide block movement, therefore realized the real time execution of servomotor, stop in real time, energy-conservation more economically.
In sum, above-mentioned embodiment is not to be restricted embodiment of the present utility model, and modification or equivalent deformation that all those skilled in the art are carried out on the basis of flesh and blood of the present utility model all should belong to technology category of the present utility model.
Claims (3)
1. the servo-control system of a plate bending machine is characterized in that: the servo drive system that comprises hydraulic system and described hydraulic system; Described hydraulic system comprises by the hydraulic pump of driven by servomotor, hydraulic cylinder, three position four-way electromagnetic valve, first two-position two-way solenoid valve and second two-position two-way solenoid valve; The epicoele of described hydraulic cylinder is communicated with second hydraulic fluid port of three position four-way electromagnetic valve, first hydraulic fluid port of first two-position two-way solenoid valve and first hydraulic fluid port of second two-position two-way solenoid valve; Described hydraulic pump is communicated with the oil-in of three position four-way electromagnetic valve; The oil-in of the oil-in of the oil return opening of described three position four-way electromagnetic valve, first two-position two-way solenoid valve and second two-position two-way solenoid valve is communicated with fuel tank; First hydraulic fluid port of described three position four-way electromagnetic valve is communicated with the cavity of resorption of hydraulic cylinder by a check valve;
Described servo drive system comprises digital control system and servo-drive controller; Described digital control system has the floor push input interface, moves downward signal output port, moves downward signal output port at a slow speed, signal output port and pressure release inhibit signal output port move upward; Be connected with floor push between 24V and the described floor push input interface; The described coil that is connected with first relay between signal output port and the 0V that moves downward, the described coil that is connected with second relay between signal output port and the 0V that moves downward at a slow speed, described moving upward is connected with the coil of the 3rd relay between signal output port and the 0V, be connected with the coil of the 4th relay between described pressure release inhibit signal output port and the 0V;
The three-phase output of described servo-drive controller connects described servomotor, the first function port of described servo-drive controller provides signal by two branch roads that are connected in parallel, one of them branch road is in series with first normal open switch of described first relay and the normally closed switch of described second relay, is connected with first normal open switch of described the 3rd relay on another branch road; The second function port of described servo-drive controller provides signal by the branch road that two other is connected in parallel, one of them branch road is in series with second normal open switch of described first relay and the normal open switch of described second relay, is connected with second normal open switch of described the 3rd relay on another branch road;
The coil of the left position magnetic valve of described three position four-way electromagnetic valve is controlled by the 3rd normal open switch of described first relay that connects together and first normal open switch of described the 4th relay by the coil of the right position magnetic valve of the 3rd normal open switch control of described the 3rd relay, described three position four-way electromagnetic valve; The coil of the right position magnetic valve of first two-position two-way solenoid valve is by second normal open switch control of described the 4th relay; The coil of the right position magnetic valve of second two-position two-way solenoid valve is by the 4th normal open switch control of described the 3rd relay.
2. the servo-control system of plate bending machine according to claim 1 is characterized in that: the cavity of resorption of described hydraulic cylinder is communicated with fuel tank by one first overflow valve, is connected with second overflow valve between described hydraulic pump and the fuel tank; Be connected a choke valve between the oil-in of described first two-position two-way solenoid valve and the fuel tank.
3. the servo-control system of plate bending machine according to claim 1 and 2, it is characterized in that: described digital control system also has the top dead-centre signal input port, is connected with the top dead-centre button between 24V and the described top dead-centre signal input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200333454U CN201684804U (en) | 2010-01-21 | 2010-01-21 | Servo control system for plate bending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200333454U CN201684804U (en) | 2010-01-21 | 2010-01-21 | Servo control system for plate bending machine |
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| CN201684804U true CN201684804U (en) | 2010-12-29 |
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| CN2010200333454U Expired - Fee Related CN201684804U (en) | 2010-01-21 | 2010-01-21 | Servo control system for plate bending machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606550A (en) * | 2012-03-31 | 2012-07-25 | 威海华东数控股份有限公司 | Energy-saving hydraulic driving system |
| CN102829035A (en) * | 2012-09-18 | 2012-12-19 | 湖南三星数控机械有限公司 | Servo hydraulic hybrid power system for electro-hydraulic synchronous bending machine |
| CN103252653A (en) * | 2012-08-31 | 2013-08-21 | 天津市天工伟业数控机床有限公司 | Brake mechanism of linear slide rails |
| CN103658281A (en) * | 2013-12-28 | 2014-03-26 | 山东特种工业集团有限公司 | Hydraulic side pressing die |
| CN104324985A (en) * | 2014-11-24 | 2015-02-04 | 上海埃锡尔数控机床有限公司 | Full-closed loop electro-hydraulic servo plate bending machine |
| CN106623477A (en) * | 2016-12-16 | 2017-05-10 | 沈阳经济技术开发区创新数控设备有限公司 | Numerical-control precise board forming machine |
| CN108215108A (en) * | 2016-12-15 | 2018-06-29 | 群达模具(深圳)有限公司 | A kind of quick response servo-control system of injection moulding machine |
| CN110314958A (en) * | 2019-07-03 | 2019-10-11 | 刘海文 | A kind of bending machine |
-
2010
- 2010-01-21 CN CN2010200333454U patent/CN201684804U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606550A (en) * | 2012-03-31 | 2012-07-25 | 威海华东数控股份有限公司 | Energy-saving hydraulic driving system |
| CN103252653A (en) * | 2012-08-31 | 2013-08-21 | 天津市天工伟业数控机床有限公司 | Brake mechanism of linear slide rails |
| CN102829035A (en) * | 2012-09-18 | 2012-12-19 | 湖南三星数控机械有限公司 | Servo hydraulic hybrid power system for electro-hydraulic synchronous bending machine |
| CN103658281A (en) * | 2013-12-28 | 2014-03-26 | 山东特种工业集团有限公司 | Hydraulic side pressing die |
| CN104324985A (en) * | 2014-11-24 | 2015-02-04 | 上海埃锡尔数控机床有限公司 | Full-closed loop electro-hydraulic servo plate bending machine |
| CN108215108A (en) * | 2016-12-15 | 2018-06-29 | 群达模具(深圳)有限公司 | A kind of quick response servo-control system of injection moulding machine |
| CN108215108B (en) * | 2016-12-15 | 2024-02-27 | 深圳市中科晟达互联智能科技有限公司 | Quick response servo control system of injection molding machine |
| CN106623477A (en) * | 2016-12-16 | 2017-05-10 | 沈阳经济技术开发区创新数控设备有限公司 | Numerical-control precise board forming machine |
| CN106623477B (en) * | 2016-12-16 | 2019-04-19 | 沈阳经济技术开发区创新数控设备有限公司 | Numerically-controlled precise sheet-forming machine |
| CN110314958A (en) * | 2019-07-03 | 2019-10-11 | 刘海文 | A kind of bending machine |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20170121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |