CN2488681Y - Accurate oil hydraulic press in high speed - Google Patents
Accurate oil hydraulic press in high speed Download PDFInfo
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- CN2488681Y CN2488681Y CN 01235745 CN01235745U CN2488681Y CN 2488681 Y CN2488681 Y CN 2488681Y CN 01235745 CN01235745 CN 01235745 CN 01235745 U CN01235745 U CN 01235745U CN 2488681 Y CN2488681 Y CN 2488681Y
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Abstract
The utility model relates to a high speed precise oil hydraulic press, comprising a master cylinder, a control desk, a column, a lower board which is arranged on the column as well as a guide sleeve which can move on the column. The guide sleeve is coupled with a middle board, while the middle board is coupled with a plunger; the plunger matches with the master cylinder. A flange of the master cylinder is sleeved on the plunger and is fixed on the end surface of the master cylinder. The master cylinder is rigidly coupled with the column and the two sides of the master cylinder are also equipped with hydraulic pushing device which can make the middle board move on the column rapidly. A material rejecting device is arranged under the lower board; a position sensor, a pressure sensor and a program terminal are electrically connected with a programmable controller in the appliance box. The utility model has high efficiency of 2.5 times higher than ordinary hydraulic press. The movement displacement precision reaches 0.01mm. The structure is rigid, and the distortion reduces when being stressed. In addition, the hydraulic unit adopts a proportion control valve, therefore the utility model can have pressing function for multiple times.
Description
The utility model relates to a kind of high speed and precision hydraulic press
At present, cold and hot metal extruding industry, as handicraft, ornaments, clock and watch, glasses and tableware etc., more and more higher to the quality requirement of product, manufacturing process becomes increasingly complex, and the prior oil pressure machine is difficult to guarantee its product quality, also can't satisfy its technological requirement.The idle running speed of prior oil pressure machine design, opening speed all are single compactings under pressure in 200mm/s, and it does not all make special requirement on rigid design, thereby the distortion of working plate is bigger during compacting; Stroke adjustment adopts travel switch or pressure switch control, because sender is incured loss through delay, hydraulic press compacting accuracy synthesis error is bigger, in addition, the pressure adjustment of existing hydraulic press is that oil pressure changes by regulating, computing (control parameters table) just can be adjusted the tonnage number, inconvenient operation, and error is also bigger; In the electrical control, adopt general electrical equipment, exist the inflexible defective of control.
It is a kind of little at workpiece size that the purpose of this utility model is to provide, but need the compacting tonnage big, has high rigidity, distortion is little and kinematic accuracy is high high speed and precision hydraulic press.
For achieving the above object, the utility model is achieved in that a kind of high speed and precision hydraulic press, comprises master cylinder, operating desk, column, the guide pin bushing that is located at the lower plate on the column and can moves on column; Be connected with middle plate on guide pin bushing, middle plate connects with plunger, and plunger and master cylinder are suitable, and the master cylinder flange is enclosed within outside the plunger and is fastened on the end face of master cylinder; The hydraulic pushing device of plate fast moving on column during master cylinder and column rigid attachment, its both sides also are provided with and can make is provided with discharging device at the downside of lower plate; Operating desk is provided with the programming terminal, and this programming terminal is electrically connected with programmable controller on the electric box interior circuit board; Be provided with the displacement transducer of plate and plunger motion displacement in the detection between master cylinder and the middle plate; The oil circuit of master cylinder is provided with the pressure sensor of perception master cylinder pressure; Displacement transducer and pressure sensor are electrically connected with programmable controller.
Further improvement of the utility model is, the master cylinder cross section be "
" shape, the upper end of plunger is set with guide ring, and is fixed by securing member and pressing plate; Hydraulic pushing device comprises through hole on quick bar, cylinder sleeve and the master cylinder; Through hole constitutes hydraulic cylinder on cylinder sleeve and the master cylinder; Cylinder sleeve and flange are fastened on the end face of master cylinder and adaptive with quick bar, fast bar and middle plate rigid attachment; Discharging device comprise material returned bar, with the suitable material returned cylinder of material returned bar; Two ends up and down at material returned cylinder are connected with flange respectively; The lower end of material returned bar is connected with the material returned collision block of adjusting piece, locking nut and being fixed by securing member successively, and material returned collision block contacts with limit switch; The upside of lower plate is provided with working plate.
Also being provided with the master cylinder point that is electrically connected with the electric box interior circuit board on the operating desk goes up button SB7, bimanualness button SB4, SB5, returns initial point button SB6 and photoelectric protector; Be provided with limit switch SQ3 and on-off plug below material returned cylinder, floor push SF1, SF2 are installed on the on-off plug; Be provided with oil level detecting switch SQ6 in grease pump, at oil pump exit setting pressure sense switch SP1, the upper limit of master cylinder, limit switch SQ1, SQ2 are installed on the control panel, and control panel is arranged on the side of master cylinder; Solenoid directional control valve, inserted valve, electro-hydraulic reversing valve and electromagnetic relief valve are installed on the hydraulic means integrated package; The detection probe of pressure sensor is installed on the oil circuit of master cylinder.
On the circuit board in the electric appliance box A.C. contactor KM, Proportional Amplifer card and programmable controller CQM1H-CPU51CPU are installed, programmable controller CQM1H-CPU51CPU comprises COM1-PA203 power subsystem, CQM1-ID212 input block, CQM1-OC222 output unit, CQM1H-CTB41 high-speed counting unit, CQM1-AD041 A/D converter, CQM1-DA021 D/A conversion unit; The AC220V of power subsystem and 0V interface are connected to city's alternating current; The input port 00000,00009,00010,00013 of CQM1-ID212 input block is gone up button SB7, bimanualness button SB4, SB5 and is returned initial point button SB6 with master cylinder point respectively and is electrically connected; Input port 00002 is electrically connected with limit switch SQ3, input port 00003 is electrically connected with oil level detecting switch SQ6, input port 00004 stops up sense switch SQ4 with oil filter and is electrically connected, input port 00006 is electrically connected with pressure detection switch SP1, input port 00008 is electrically connected with the normally open contact of the A.C. contactor KM3 of control machine operation, input port 00011,00012 respectively with floor push SF1, SF2 is electrically connected, input port 00014,00015 respectively with auxiliary reclay KA12, normally open contact of each of KA13 is electrically connected KA12, the coil of KA13 respectively with the output of photoelectric protector (9) 5., 6., 7. be electrically connected and receive the detection signal of photoelectric protector; Input port 00100,00101 is electrically connected with the master cylinder upper limit, limit switch SQ1, SQ2 respectively; The output port 10000,10001,10002,10003,10004,10005,1006,10007,10008,10009,10010 of CQM1-OC222 output unit is electrically connected with solenoid 1YA, 2YA, 3YA, 4YA, 5YA, 6YA, 7YA, 8YA, 10YA, the 11YA of electromagnetic relief valve, solenoid directional control valve, electro-hydraulic reversing valve, inserted valve, solenoid directional control valve, inserted valve, solenoid directional control valve respectively; The A1.A-of high-speed counting unit, B1.B-, the Ua1 of Z1.Z-port and displacement transducer, Ua1, Ua2, Ua2, Ua0, Ua0 port are electrically connected; The 11+ of mould/counting unit, V1+ two-port and pressure sensor 1., 2. port is electrically connected, the V1+ of D/A switch unit, V1-port are electrically connected with 28a, the 30a port of proportioning valve amplifier card; 22a on the proportioning valve amplifier card, 20a port are electrically connected with the coil of proportioning valve; Communication cable one end is connected programming terminal delivery outlet, and the other end is received the PLC.RS232 interface; Show various kinematic parameters and various fault message on the display screen of programming terminal, can be on the programming terminal setting pressure parameter and displacement parameter arbitrarily, this parameter is delivered in the CPU of PLC and is stored by the RS232 interface.
The oil circuit of master cylinder is provided with the duplex plunger displacement pump, duplex plunger displacement pump input is connected with oil filter, it pumps greatly check valve is installed on the hydraulic fluid port, its hydraulic fluid port that pumps for a short time is connected with solenoid directional control valve; pump hydraulic fluid port for a short time and also be connected with solenoid directional control valve, and the upper and lower action of control material returned bar is pumped hydraulic fluid port for a short time and is connected with accurate filter at the output of check valve; oil circuit is connected on the solenoid directional control valve after filtering, and solenoid directional control valve is connected with prefill valve and controls the topping up state of prefill valve; Accurate filter also links to each other with the P mouth of electro-hydraulic reversing valve, and the A mouth of electro-hydraulic reversing valve is connected with cylinder sleeve and inserted valve, and inserted valve then is connected the epicoele of master cylinder, and the B mouth of electro-hydraulic reversing valve is connected with inserted valve, is connected with the master cylinder cavity of resorption through inserted valve again; States such as above-mentioned each valve control master cylinder is descending fast, work and backhaul, pressure sensor and proportional pressure valve then are connected to the master cylinder epicoele, and the pressure of master cylinder is carried out pressure regulation and monitoring.
The utility model compared with prior art has following advantage:
1. guarantee its rigidity, master cylinder is cast as integral body, and it is out of shape when stressed reduces, this compact conformation, good looking appearance is generous.
2. the utility model speed is fast, the efficient height, and for the conventional oil press 2.5 times are lubricated because of having adopted the automatic lubricating system column, have reduced wearing and tearing, collect the lubricating oil return pond by oil return pipe, reach the effect that recycles.
3, the utility model is numerical control control, owing to adopted Programmable Logic Controller, displacement transducer and high counting number card, therefore the setting of various parameters, then utilize programming terminal (touch-screen), by the functional parameter prompting of this terminal, input different parameters: just can control machine works, have easy to operate and the control flexible characteristic, significantly reduce wiring, reduced fault rate.In addition, this touch-screen can also be monitored and function such as warning fault, so that maintenance personal's maintenance and maintenance.Utilize displacement transducer control position precision can reach 0.01mm.These functions are that general hydraulic press is difficult to realize.
4, hydraulic system adopts proportional pressure valve control, can produce repeatedly pressing function.
Fig. 1 is a front view of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation of hydraulic press master cylinder;
Fig. 5 is the structural representation of discharging device;
Fig. 6 is the hydraulic scheme of hydraulic press;
Fig. 7 is a system works schematic diagram of the present utility model;
Fig. 8 is an electrical schematic diagram of the present utility model;
Fig. 9 is a programmable controller electrical schematic diagram of the present utility model.
Below in conjunction with drawings and Examples the utility model is described in further detail:
Shown in Fig. 1,2,3,4, it is a kind of high speed and precision hydraulic press, comprises master cylinder 1, operating desk 8, column 17, the guide pin bushing 20 that is located at the lower plate 19 on the column 17 and can moves on column 17; Master cylinder 1 cross section be "
" shape, the upper end of plunger 22 is set with guide ring 23, and fixing by securing member 24 and pressing plate 25; Plate 16 on guide pin bushing 20, being connected with, middle plate 16 connects with plunger 22, plunger 22 is suitable with master cylinder 1, master cylinder flange 21 is enclosed within outside the plunger 22 and is fastened on the end face of master cylinder 1: master cylinder 1 and column 17 rigid attachment, the hydraulic pushing device of plate 16 fast moving on column 17 during its both sides also are provided with and can make, it comprises through hole 35 on quick bar 15, cylinder sleeve 34 and the master cylinder 1; Through hole 35 constitutes hydraulic cylinder on cylinder sleeve 34 and the master cylinder 1; Cylinder sleeve 34 and flange 14 are fastened on the end face of master cylinder 1 and adaptive with quick bar 15, bar 15 and middle plate 16 rigid attachment fast.Downside in lower plate 19 is provided with discharging device; Shown in Fig. 1,5, it comprise material returned bar 26, with the suitable material returned cylinder 7 of material returned bar 26; Be connected with flange 27,29 respectively at the two ends up and down of material returned cylinder 7; The lower end of material returned bar 26 is connected with the material returned collision block 32 of adjusting piece 30, locking nut 28 and being fixed by securing member 31 successively, and material returned collision block 32 contacts with limit switch 6.Operating desk 8 is provided with programming terminal 4, and this programming terminal 4 is electrically connected with programmable controller 61 on electric box 3 interior circuit boards; Be provided with the displacement transducer 2 of plate 16 and plunger 22 moving displacement amounts in the detection between master cylinder 1 and the middle plate 16; The oil circuit of master cylinder 1 is provided with the pressure sensor 49 of perception master cylinder 1 pressure; Displacement transducer 2 and pressure sensor 49 are electrically connected with programmable controller 61; Be provided with working plate 18 and lower plate 19 on column 17, working plate 18 places the upside of lower plate 19.
Also being provided with the master cylinder point that is electrically connected with electric box 3 interior circuit boards on the operating desk 8 goes up button SB7, bimanualness button SB4, SB5, returns initial point button SB6 and photoelectric protector 9; Be provided with limit switch SQ3 and on-off plug 12 below material returned cylinder 7, floor push SF1, SF2 are installed on the on-off plug 12; In grease pump 5, be provided with oil level detecting switch SQ6, at grease pump 36 exit setting pressure sense switch SPl, the upper limit of master cylinder, limit switch SQ1, SQ2 are installed on the control panel 13, control panel 13 is arranged on the side of master cylinder 1, and solenoid directional control valve 39,46,41A, 41B, inserted valve 47,45,44, electro-hydraulic reversing valve 43A, 43B and electromagnetic relief valve 38 are installed on the hydraulic means integrated package 11; The detection probe of pressure sensor 49 is installed on the oil circuit of master cylinder 1.
The utility model is the mechanical-electrical-hydraulic integration product, except that reasonable mechanical structure, also combines with hydraulic means and electrical equipment control.
Shown in Fig. 7,9, electric control system of the present utility model is to adopt the CQM1H programmable controller (PLC) 61 of Japan OMRON, NT31C programming terminal (touch-screen) 4; The displacement transducer 2 of LS623 type Germany Heidenhain company; The pressure sensor 49 of PIN801-23-510 type Germany WIKA company; Safe grating 9 grades of C20S-030104A11+C20E-030304A11 Germany Shi Ke company are formed the control system of a closed loop.
The PLC of the COMlH of OMRON company comprises as lower unit: COM1-PA203 power subsystem 70; CQM1H one CPU51CPU unit 61; CQM1-ID212 input block 68; CQM1-OC222 output unit 69; CQM1H-CTB41 high-speed counting unit 66; CQM1-AD041 A/D converter 67; CQM1-DA021 D/A conversion unit 62; These unit bottom respectively have an output interface, are unified into an integral body mutually by the modular construction pattern, are installed on the panel of electric appliance box 3.
The arrangement of each module of Programmable Logic Controller is as follows:
| CQM1- PA203 (70) | CQM1H-CPU51 (61) | CQM1- ID212 (68) | CQM1- OC222 (69) | CQM1- AD041 (67) | CQM1- IPS02 (60) | CQM1- DA021 (62) |
| CQM1H-CTB41 (66) |
On the circuit board in the electric appliance box 3 A.C. contactor KM, Proportional Amplifer card 63 are installed also; The AC220V of power subsystem 70 and 0V interface are connected on the electric power network; The input port 00000,00009,00010,00013 of CQM1-ID212 input block 68 is gone up button SB7, bimanualness button SB4, SB5 and is returned initial point button SB6 with master cylinder point respectively and is electrically connected; Input port 00002 is electrically connected with limit switch SQ36, input port 00003 is electrically connected with oil level detecting switch SQ6, input port 00004 stops up sense switch SQ4 with oil filter and is electrically connected, input port 00006 is electrically connected with pressure detection switch SP1, input port 00008 is electrically connected with the normally open contact of the A.C. contactor KM3 of control machine operation, input port 00011,00012 respectively with floor push SF1, SF2 is electrically connected, input port 00014,00015 respectively with auxiliary reclay KA12, normally open contact of each of KA13 is electrically connected KA12, the coil of KA13 respectively with the output of photoelectric protector 9 5., 6., 7. be electrically connected and receive the detection signal of photoelectric protector 9; Input port 00100,00101 respectively with the master cylinder upper limit, limit switch SQ1, SQ2 is electrically connected, the output port 10000 of CQM1-OC222 output unit 69,10001,10002,10003,10004,10005,1006,10007,10008,10009,10010 difference electromagnetic relief valves 38, solenoid directional control valve 39, electro-hydraulic reversing valve 43A, 43B, inserted valve 47, solenoid directional control valve 46, inserted valve 45,44, solenoid directional control valve 41A, the solenoid 1YA of 41B, 2YA, 3YA, 4YA, 5YA, 6YA, 7YA, 8YA, 10YA, 11YA is electrically connected, the A1.A-of high-speed counting unit 66, B1.B-, the Ua1 of Z1.Z-port and displacement transducer 2, Ua1, Ua2, Ua2, Ua0, the Ua0 port is electrically connected, the I1+ of mould/counting unit 67, V1+ two-port and pressure sensor 49 are 1., 2. port is electrically connected, the V1+ of D/A switch unit 62, the 28a of V1-port and proportioning valve amplifier card 63, the 30a port is electrically connected, the 22a on the proportioning valve amplifier card 63, the 20a port is electrically connected with the coil of proportioning valve 50; Communication cable one end is connected programming terminal 4 delivery outlets, and the other end is received the PLC.RS232 interface; Show various kinematic parameters and various fault message on the display screen of programming terminal 4, can be on programming terminal 4 setting pressure parameter and displacement parameter arbitrarily, this parameter is delivered in the CPU of PLC61 and is stored by the RS232 interface.
As shown in Figure 6, adopted the design of proportional pressure valve in the hydraulic system of hydraulic press, had repeatedly pressing function, the oil circuit of master cylinder 1 is provided with duplex plunger displacement pump 36, duplex plunger displacement pump 36 inputs are connected with oil filter 54, it pumps 55, for the oil suction of oil pump is done to filter for the first time. greatly check valve 37 is installed on the hydraulic fluid port; Its little hydraulic fluid port that pumps is connected with solenoid directional control valve 39; The little hydraulic fluid port that pumps also is connected with solenoid directional control valve 41A and 41B; Control the upper of material returned bar 26; Lower action; The little hydraulic fluid port that pumps is connected with accurate filter 42 at the output of check valve 37; For greatly; The hydraulic oil that little pump flows out is done for the second time secondary filter; Oil circuit is connected on the solenoid directional control valve 46 after filtering; Magnetic valve reversal valve 46 is connected with prefill valve 48 and controls the topping up state of prefill valve 48; Accurate filter 42 also with electro-hydraulic reversing valve 43A; The P mouth of 43B is connected; The A mouth of electro-hydraulic reversing valve 43A is connected with cylinder sleeve 34 and inserted valve 45; 45 epicoeles that are connected to master cylinder 1 of inserted valve; The B mouth of electro-hydraulic reversing valve 43B is connected with inserted valve valve 44; Be connected with master cylinder 1 cavity of resorption through inserted valve 47 again; Above-mentioned each valve control master cylinder 1 is descending fast; The states such as work and backhaul; 50 of pressure sensor 49 and proportional pressure valves are connected to master cylinder 1 epicoele, and the pressure of master cylinder 1 is carried out pressure regulation and monitoring.
Displacement transducer (LS623) the 2nd, plate 16 and plunger 22 moving displacement amounts in the real-time detection machine, produce a pulse signal, this signal is sent to the high-speed counting unit 66 of PLC, the displacement parameter that sets with storage user in the PLC.CPU compares control signal of generation, the displacement of plate 16 and plunger 22 in the control machine.
In the course of the work, the data that receive PLC.CPU61 data that programming terminal 4 users set and pressure sensor 49 and displacement transducer 2 are detected compare, produce a result data (data signal), deliver to D/A unit 62 by programmed instruction and be converted into analog signal (0-10V), this signal amplifies card 63 through proportioning valve and amplifies, deliver to the coil of proportional pressure valve 50, plunger 22 work are promptly controlled in 50 work of control ratio pressure valve.The duty of plunger 22 detects in real time through pressure sensor 49 and displacement transducer 2 again, and signal data feeds back to PLC.CPU61; Finally the control hydraulic press is realized high speed, function accurate, that repeatedly suppress.
When both hands press the button SB4, SB5, the electromagnet 1YA of electromagnetic relief valve 38, the electromagnet 2YA of solenoid directional control valve 39, the left side electromagnet 3YA of electro-hydraulic reversing valve 43, the electromagnet 5YA of inserted valve 47, the electromagnet 8YA of inserted valve 44, the electromagnet 6YA of solenoid directional control valve 46, the proportion electro-magnet 9YA of proportional pressure valve 50 switches on simultaneously; Make each valve move to the relevant position, at this moment, the hydraulic oil warp that large and small pump flows out
Accurate filter 42, electro-hydraulic reversing valve 43 enters cylinder sleeve 12, and plate 16 moves downward fast in making, and this moment, hydraulic oil is opened prefill valve 48 through solenoid directional control valve 46 makes master cylinder 1 be able to repairing when moving downward fast, for duty is prepared.And inserted valve 47,44 and the electro-hydraulic reversing valve 43 of the hydraulic oil of master cylinder 1 cavity of resorption through opening flows back to fuel tank; At this moment, middle plate 16 is in the F.F. state.In the middle of plate when being displaced downwardly to worker's carry that parameter sets and putting, the electromagnet 1YA of electromagnetic relief valve 38 then, the electromagnet 5YA of inserted valve 47, the electromagnet 6YA of solenoid directional control valve 46, insert the electromagnet 8YA while dead electricity of shape valve 44, the electromagnet 7YA of inserted valve 45 then, at this moment, electromagnet 2YA, 3YA, 7YA, 9YA is in "on" position, because electromagnetic relief valve 38 is in unloading condition, it is in running order that then hydraulic system has only little pump, and the hydraulic oil of little pump output flows into cylinder sleeve 12 through electro-hydraulic reversing valve 43, and electromagnet 7YA energising is opened inserted valve 45, makes little pump hydraulic oil also enter master cylinder 1 epicoele simultaneously.The dead electricity of solenoid directional control valve 46 is closed prefill valve 48; At this moment, master cylinder then is in worker's entrance pressure system state.The hydraulic oil of master cylinder cavity of resorption is then opened overflow valve 51 and is flowed back to fuel tank.After the pressure compacting that master cylinder is set by parameter is finished, the proportion electro-magnet 9YA dead electricity of proportional pressure valve 50, then hydraulic system is in unloading condition, and for backhaul is prepared, after off-load was finished, then the electromagnet of former energising all cut off the power supply.Electromagnet 1YA, 2YA, 4YA, 5YA, 6YA, 8YA, the energising after 0.1 second of delaying time, at this moment, inserted valve 44,47, prefill valve 48 are in open mode.Large and small pump is in running order, at this moment, hydraulic oil enters the master cylinder cavity of resorption through electro-hydraulic reversing valve 43, inserted valve 44,47, master cylinder is return fast, and master cylinder epicoele hydraulic oil flows back to fuel tank through prefill valve, when master cylinder retreats to the decelerate position of parameter setting soon, the magnetic valve 1YA dead electricity of electromagnetic relief valve 38, big then off-load of pump.At this moment, hydraulic system has only little pump work, and middle plate is at this moment and moves back state slowly, until zero-bit, and when central plate is got back to zero-bit, the whole dead electricity of all electromagnet, master cylinder stops action.When material returned cylinder is arranged at auto state, after then master cylinder stops, the electromagnet 2YA of solenoid directional control valve 39, the electromagnet 10YA energising of solenoid directional control valve 41, the hydraulic oil of little pump enters material returned cylinder cavity of resorption through solenoid directional control valve 41, and material returned masthead goes out, when eject finish after, the electromagnet 11YA energising of solenoid directional control valve 41, little pump hydraulic oil enters material returned cylinder epicoele, and material returned bar is return.When pressing limit switch 6, whole electromagnet dead electricity, action stops, and this moment, working cycles was finished.
As shown in Figure 8; this machine adopts three-phase and four-line; major loop adopts 380V, and control loop adopts 220V, the battery main switch QF1 in the regulator cubicle that at first closes; then the conversion of the control power supply on operating desk knob SA1 is rotated to the position of conducting; then power supply indicator HL1 is bright, observes the fault display part of touch-screen, if fault-free then can be started main motor 10; whether press then motor rotation of electric motor starting button SB3, it is normal to test photoelectric protection and stop button before each start earlier.
This machine duty is divided into manual operation, semi-automatic operation and single operation, cycling.
Manual operation: at first on touch-screen, select " manual operation " duty, then electromagnet 1YA, 2YA, 3YA, 5YA, 7YA, 8YA and proportioning valve 9YA be simultaneously to push both hands work SB4, SB5 then, middle plate 16 slowly down, loose one's grip and then stop, under reaching setting value or arrive, pressure prescribes a time limit, disconnect all valves, press on 1 point of play button SB7 master cylinder, 2YA, 4YA, 5YA, 6YA, 8YA are simultaneously, middle plate 16 is gone up slowly, then stop to upper limit switch S Q1 sender, on the point,, 1. motor moves KM3
Normally.2. lubricated oil level SQ6 point must just can carry out normal down under the situation that following condition satisfies.3. oil filter SQ4 is normal.4. pressure protect SP1 is normal.5. parameter is set errorless.In addition also require photoelectric protection KA12, KA13 normal down, material returned bar 26 contacts with limit switch SB3 at lower limit.
Semi-automatic: can select semi-automatic or single work behind the manual work no problem, these two kinds work and continuous operation all at first return initial point.Returning initial point mainly is the mechanical zero of looking for displacement transducer, be constant this zero point, so the data of each setting just can remain unchanged, returning initial point can carry out under any work shape, by push back initial point button SB6 then in plate arrived upper limit switch S Q1 on slowly and stopped, delaying time then stops after finding zero-bit after 0.2 second, and initial point has been returned in demonstration, both hands are pinned a knob down then master cylinder are descending at a slow speed then, loose one's grip and then stop, when treating lower limit or pressure sender then automated backhaul stop to the upper limit.
Single operation: just can carry out after returning initial point, both hands are pressed SB4, SB5 button simultaneously, and then master cylinder 1 is descending fast, having arrived the worker advances then to transfer at a slow speed, up to lower limit or the pressurize of pressure sender, automated backhaul then after the release is finished one-period work and is then stopped at the upper limit.
Cycling: its periodic duty is former should to press the button by both hands, electromagnet 1YA, the 2YA of magnetic valve, 3YA, 5YA, 6YA, 8YA, 9YA switch on simultaneously, each valve stamen moves to the relevant position, double pump hydraulic oil interflow enters two quick cylinders, at this moment, move down fast, when the worker's carry that walks to setting is put, then electromagnet 2YA, 3YA, the 9YA of magnetic valve switch on simultaneously, at this moment, high-pressure pump is in running order, and 16 workers of middle plate advance the state compacted products, when pressure satisfies setting pressure (can suppress for three times circulation select), middle plate 16 moves to zero-bit on fast.This moment, the material returned that makes progress of material returned bar was return then, and the single working cycles finishes.
For satisfying different needs, the utility model can once be suppressed, the secondary compacting, the selection of three compactings, material returned part can be selected the foot-operated material returned, the manually material returned, automatically the material returned, all selections all utilize soft-touch control to realize, only take PLC inside stored data district, HR position and need not outside input and output point, thereby make outside line very simple, for example: the lubricated crawl that reaches material returned cylinder, counting (sum and split run) etc. all is a form of making soft-touch control, at first confirm program number before the operation, this machine can store 200 technical process, shortened the mode transfer process greatly, there are 11 basic parameters to revise according to technology, but and encrypted code, and general operation person can only observe display screen, these 11 parameters are respectively (1) master cylinder upper limit, (2) backhaul is slowed down, and (3) the master cylinder worker advance, (4) master cylinder lower limit, (5) pressure for the first time, (6) pressure for the second time, (7) are pressure for the third time, and (8) are the pressure dwell time for the first time, (9) the pressure dwell time second time, (10) pressure dwell time for the third time, (11) material returned cylinder ejection cycle is because these 11 parameters can have more than 200 different value with accounting for 3000 DM districts altogether, so adopted jumbo CPU, the CQM1H-CPV51 of OMRON, its data-storing district can reach 6K, adopts indirect addressing in programming, reduce program step widely, shortened sweep time.In order to improve precision, German Hai Han company displacement transducer, high counting number card and A/D, D/A module have been adopted in the electrical control, hydraulic system has adopted proportioning valve and pressure sensor, high counting number card is selected the OMRON last word for use, the CQMIH-CTB count frequency can reach 500KHZ, utilize interrupt function in time to catch the pulse item in the programming, site error reaches 0.01mm after tested, and pressure error is 1%.
The pressure signal of pressure sensor converts data signal to through A/D module CQM1-AD041, the force value that this signal and user set relatively, when reaching a certain setting value, then send signal, be converted to the analog voltage of corresponding 0-10V by D/A, module CQM1-DA022, this magnitude of voltage snaps fit onto on the proportioning valve through the proportioning valve amplifier, come the pressure of main control system, the Proportional Valve-controlled pressing pressure makes force value stable more and accurate.
The utility model has the monitor screen and the fault alarm screen of signalling component and executive component, and each fault has auto-lock function.Just can rework after waiting to fix a breakdown.
Claims (8)
1. high speed and precision hydraulic press, the guide pin bushing that comprises master cylinder, operating desk, column, is located at the lower plate on the column and can on column, moves; It is characterized in that: be connected with middle plate (16) on guide pin bushing (20), middle plate (16) connects with plunger (22), and plunger (22) is suitable with master cylinder (1), and master cylinder flange (21) is enclosed within outside the plunger (22) and is fastened on the end face of master cylinder (1); Master cylinder (1) and column (17) rigid attachment, its both sides also are provided with the hydraulic pushing device that can make middle plate (16) go up fast moving at column (17); Downside in lower plate (19) is provided with discharging device; Operating desk (8) is provided with programming terminal (4), and this programming terminal (4) is electrically connected with programmable controller (61) on electric box (3) interior circuit board; Be provided with the displacement transducer (2) of plate in the detection (16) and plunger (22) moving displacement amount between master cylinder (1) and the middle plate (16); The oil circuit of master cylinder (1) is provided with the pressure sensor (49) of perception master cylinder (1) pressure; Displacement transducer (2) and pressure sensor (49) are electrically connected with programmable controller (61).
2. high speed and precision hydraulic press according to claim 1 is characterized in that: master cylinder (1) cross section be "
" shape, the upper end of plunger (22) is set with guide ring (23), and fixing by securing member (24) and pressing plate (25).
3. high speed and precision hydraulic press according to claim 1 is characterized in that: hydraulic pushing device comprises upward through hole (35) of quick bar (15), cylinder sleeve (34) and master cylinder (1); Cylinder sleeve (34) and master cylinder (1) are gone up through hole (35) and are constituted hydraulic cylinder; Cylinder sleeve (34) and flange (14) are fastened on the end face of master cylinder (1) and adaptive with quick bar (15), fast bar (15) and middle plate (16) rigid attachment.
4. high speed and precision hydraulic press according to claim 1 is characterized in that: discharging device comprise material returned bar (26), with the suitable material returned cylinder (7) of material returned bar (26); Be connected with flange (27,29) respectively at the two ends up and down of material returned cylinder (7); The lower end of material returned bar (26) is connected with the material returned collision block (32) of adjusting piece (30), locking nut (28) and being fixed by securing member (31) successively, and material returned collision block (32) contacts with limit switch (6).
5. high speed and precision hydraulic press according to claim 1 is characterized in that: the upside of lower plate (19) is provided with working plate (18).
6. high speed and precision hydraulic press according to claim 1 is characterized in that: also be provided with the master cylinder point that is electrically connected with electric box (3) interior circuit board on the operating desk (8) and go up button SB7, bimanualness button SB4, SB5, return initial point button SB6 and photoelectric protector (9); Be provided with limit switch SQ3 (6) and on-off plug (12) in the below of material returned cylinder (7), floor push SF1, SF2 are installed on the on-off plug (12); In grease pump (5), be provided with oil level detecting switch SQ6, at oil pump (36) exit setting pressure sense switch SP1; The upper limit of master cylinder, limit switch sQ1, SQ2 are installed on the control panel (13), and control panel (13) is arranged on the side of master cylinder (1); Solenoid directional control valve (39,46,41A, 41B), inserted valve (47,45,44), electro-hydraulic reversing valve (43A, 43B) and electromagnetic relief valve (38) are installed on the hydraulic means integrated package (11); The detection probe of pressure sensor (49) is installed on the oil circuit of master cylinder (1).
7. according to claim 1 or 6 described high speed and precision hydraulic presses, it is characterized in that: on the circuit board in the electric appliance box (3) A.C. contactor KM is installed, Proportional Amplifer card (63) and programmable controller CQM1H-CPU51CPU (61), programmable controller CQM1H-CPU51CPU (61) comprises COM1-PA203 power subsystem (70), CQM1-ID212 input block (68), CQM1-OC222 output unit (69), CQM1H-CTB41 high-speed counting unit (66), CQM1-AD041 A/D converter (67), CQM1-DA021 D/A conversion unit (62); The AC220V and the 0V interface of power subsystem (70) are connected to city's alternating current; The input port 00000,00009,00010,00013 of CQM1-ID212 input block (68) is gone up button SB7, bimanualness button SB4, SB5 and is returned initial point button SB6 with master cylinder point respectively and is electrically connected; Input port 00002 is electrically connected with limit switch SQ3 (6), input port 00003 is electrically connected with oil level detecting switch SQ6, input port 00004 stops up sense switch SQ4 with oil filter and is electrically connected, input port 00006 is electrically connected with pressure detection switch SP1, input port 00008 is electrically connected with the normally open contact of the A.C. contactor KM3 of control machine operation, input port 00011,00012 respectively with floor push SF1, SF2 is electrically connected, input port 00014,00015 respectively with auxiliary reclay KA12, normally open contact of each of KA13 is electrically connected KA12, the coil of KA13 respectively with the output of photoelectric protector (9) 5., 6., 7. be electrically connected and receive the detection signal of photoelectric protector (9); Input port 00100,00101 is electrically connected with the master cylinder upper limit, limit switch SQ1, SQ2 respectively; The output port 10000 of CQM1-OC222 output unit (69), 10001,10002,10003,10004,10005,1006,10007,10008,10009,10010 respectively with electromagnetic relief valve (38), solenoid directional control valve (39), electro-hydraulic reversing valve (43A, 43B), inserted valve (47), solenoid directional control valve (46), inserted valve (45,44), solenoid directional control valve (41A, solenoid 1YA 41B), 2YA, 3YA, 4YA, 5YA, 6YA, 7YA, 8YA, 10YA, 11YA is electrically connected; The A1.A-of high-speed counting unit (66), B1.B-, Ua1, Ua1, the Ua2 of Z1.Z-port and displacement transducer (2), Ua2, Ua0, Ua0 port are electrically connected; The I1+ of mould/counting unit (67), V1+ two-port and pressure sensor (49) 1., 2. port is electrically connected, the V1+ of D/A switch unit (62), V1-port are electrically connected with 28a, the 30a port of proportioning valve amplifier card (63); 22a on the proportioning valve amplifier card (63), 20a port are electrically connected with the coil of proportioning valve (50); Communication cable one end is connected programming terminal (4) delivery outlet, and the other end is received the PLC.RS232 interface; Various kinematic parameters of demonstration and various fault message on the display screen of programming terminal (4) can be gone up any setting pressure parameter and displacement parameter in programming terminal (4), and this parameter is delivered to the interior and storage of CPU of PLC (61) by the RS232 interface.
8. accurate hydraulic press according to claim 1, it is characterized in that: the oil circuit of master cylinder (1) is provided with duplex plunger displacement pump (36), duplex plunger displacement pump (36) input is connected with oil filter (54,55), it pumps greatly check valve (37) is installed on the hydraulic fluid port, its hydraulic fluid port that pumps for a short time is connected with solenoid directional control valve (39); pump for a short time hydraulic fluid port also with solenoid directional control valve (41A; 41B) be connected; on the control material returned bar (26); down action; pump hydraulic fluid port for a short time and be connected with accurate filter (42) at the output of check valve (37); oil circuit is connected on the solenoid directional control valve (46) after filtering, solenoid directional control valve (46) are connected with prefill valve (48) and control the topping up state of prefill valve (48); Accurate filter (42) also links to each other with the P mouth of electro-hydraulic reversing valve (43A, 43B), the A mouth of electro-hydraulic reversing valve (43A) is connected with cylinder sleeve (34) and inserted valve (45), inserted valve (45) then is connected the epicoele of master cylinder (1), the B mouth of electro-hydraulic reversing valve (43B) is connected with inserted valve (44), is connected with master cylinder (1) cavity of resorption through inserted valve (47) again; States such as above-mentioned each valve control master cylinder (1) is descending fast, work and backhaul, pressure sensor (49) and proportional pressure valve (50) then are connected to master cylinder (1) epicoele, and the pressure of master cylinder (1) is carried out pressure regulation and monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01235745 CN2488681Y (en) | 2001-04-28 | 2001-04-28 | Accurate oil hydraulic press in high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01235745 CN2488681Y (en) | 2001-04-28 | 2001-04-28 | Accurate oil hydraulic press in high speed |
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| Publication Number | Publication Date |
|---|---|
| CN2488681Y true CN2488681Y (en) | 2002-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01235745 Expired - Fee Related CN2488681Y (en) | 2001-04-28 | 2001-04-28 | Accurate oil hydraulic press in high speed |
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| CN (1) | CN2488681Y (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100457320C (en) * | 2007-02-13 | 2009-02-04 | 西南铝业（集团）有限责任公司 | Controlling system of moulded forging hydraulic press with proportional type oil controlling water |
| CN102229252A (en) * | 2011-07-11 | 2011-11-02 | 陈小英 | Control device and method of isostatic pressing machine |
| CN102397969A (en) * | 2011-12-08 | 2012-04-04 | 常州市新特力工具有限公司 | Water press |
| CN102500679A (en) * | 2011-12-23 | 2012-06-20 | 佛山市康思达液压机械有限公司 | Hydraulic press integrating rubber cushion forming and panel liquid-filling forming |
| CN102518624A (en) * | 2011-12-29 | 2012-06-27 | 天水锻压机床(集团)有限公司 | Pressure-maintaining and pressure-relieving control system for large-tonnage cylinder of steel-tube finishing straightening machine |
| CN102602019A (en) * | 2012-03-22 | 2012-07-25 | 上海大学 | Low-power 200mm/s grade high-speed large-tonnage four-post single-acting hot-stamping oil press |
| CN102692889A (en) * | 2011-03-23 | 2012-09-26 | 侯金来 | Press machine hydraulic motor energy-saving control device and control method thereof |
| CN101422970B (en) * | 2007-11-02 | 2012-10-17 | 北京中科三环高技术股份有限公司 | Positional control bidirectional pressed moulding press |
| CN103406391A (en) * | 2013-06-28 | 2013-11-27 | 雄华机械(苏州)有限公司 | Stamping stroke measuring mechanism used on stamping machine |
| CN103459859A (en) * | 2010-12-22 | 2013-12-18 | 艾科安特公司 | Hydraulic cylinder position sensing and locking system and corresponding method |
| CN103769428A (en) * | 2014-02-20 | 2014-05-07 | 佛山市南海区坤霸机床厂 | Numerical control efficient energy-saving and environment-friendly cold extrusion forming machine |
| CN104842575A (en) * | 2015-01-27 | 2015-08-19 | 佛山市成达液压设备有限公司 | Two-cylinder bidirectional hydraulic machine |
| CN104908353A (en) * | 2015-07-03 | 2015-09-16 | 南通海利特橡塑机械有限公司 | Oil press |
| CN105298945A (en) * | 2015-11-27 | 2016-02-03 | 南通锻压设备股份有限公司 | Hydraulic system of quick pressing type hydraulic press |
| CN105479803A (en) * | 2015-11-18 | 2016-04-13 | 合肥合锻机床股份有限公司 | Hydraulic machine loading system and control method thereof |
| CN105492268A (en) * | 2013-07-23 | 2016-04-13 | 卢卡斯汽车股份有限公司 | Master brake cylinder assembly of a motor vehicle brake system having a filter element, and fluid reservoir and insert element therefor |
| CN105619875A (en) * | 2016-03-17 | 2016-06-01 | 南京宁锻重工机械制造有限公司 | High-speed hydraulic punching machine |
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| CN106141040A (en) * | 2016-08-10 | 2016-11-23 | 徐州工程学院 | A kind of reinforced bar cold extrusion attachment means and method of work thereof |
| CN107685228A (en) * | 2017-02-17 | 2018-02-13 | 上海名欧精机有限公司 | Numerical control hydraulic pressing machine |
| CN108044981A (en) * | 2017-12-31 | 2018-05-18 | 佛山市南海区心海悠金属制品有限公司 | A kind of hydraulic pressure backwashes device |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457320C (en) * | 2007-02-13 | 2009-02-04 | 西南铝业（集团）有限责任公司 | Controlling system of moulded forging hydraulic press with proportional type oil controlling water |
| CN101422970B (en) * | 2007-11-02 | 2012-10-17 | 北京中科三环高技术股份有限公司 | Positional control bidirectional pressed moulding press |
| CN103459859A (en) * | 2010-12-22 | 2013-12-18 | 艾科安特公司 | Hydraulic cylinder position sensing and locking system and corresponding method |
| CN102692889A (en) * | 2011-03-23 | 2012-09-26 | 侯金来 | Press machine hydraulic motor energy-saving control device and control method thereof |
| CN102229252A (en) * | 2011-07-11 | 2011-11-02 | 陈小英 | Control device and method of isostatic pressing machine |
| CN102397969A (en) * | 2011-12-08 | 2012-04-04 | 常州市新特力工具有限公司 | Water press |
| CN102500679B (en) * | 2011-12-23 | 2013-09-25 | 佛山市康思达液压机械有限公司 | Hydraulic press integrating rubber cushion forming and panel liquid-filling forming |
| CN102500679A (en) * | 2011-12-23 | 2012-06-20 | 佛山市康思达液压机械有限公司 | Hydraulic press integrating rubber cushion forming and panel liquid-filling forming |
| CN102518624B (en) * | 2011-12-29 | 2015-04-22 | 天水锻压机床(集团)有限公司 | Pressure-maintaining and pressure-relieving control system for large-tonnage cylinder of steel-tube finishing straightening machine |
| CN102518624A (en) * | 2011-12-29 | 2012-06-27 | 天水锻压机床(集团)有限公司 | Pressure-maintaining and pressure-relieving control system for large-tonnage cylinder of steel-tube finishing straightening machine |
| CN102602019A (en) * | 2012-03-22 | 2012-07-25 | 上海大学 | Low-power 200mm/s grade high-speed large-tonnage four-post single-acting hot-stamping oil press |
| CN103406391A (en) * | 2013-06-28 | 2013-11-27 | 雄华机械(苏州)有限公司 | Stamping stroke measuring mechanism used on stamping machine |
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| CN103769428A (en) * | 2014-02-20 | 2014-05-07 | 佛山市南海区坤霸机床厂 | Numerical control efficient energy-saving and environment-friendly cold extrusion forming machine |
| USD765339S1 (en) | 2014-09-17 | 2016-08-30 | Actuant Corporation | Base member of a portable lift system |
| US10173872B2 (en) | 2014-09-17 | 2019-01-08 | Actuant Corporation | Portable self-locking lift system |
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| CN105479803A (en) * | 2015-11-18 | 2016-04-13 | 合肥合锻机床股份有限公司 | Hydraulic machine loading system and control method thereof |
| CN105298945A (en) * | 2015-11-27 | 2016-02-03 | 南通锻压设备股份有限公司 | Hydraulic system of quick pressing type hydraulic press |
| CN105619875A (en) * | 2016-03-17 | 2016-06-01 | 南京宁锻重工机械制造有限公司 | High-speed hydraulic punching machine |
| CN106141040A (en) * | 2016-08-10 | 2016-11-23 | 徐州工程学院 | A kind of reinforced bar cold extrusion attachment means and method of work thereof |
| CN107685228A (en) * | 2017-02-17 | 2018-02-13 | 上海名欧精机有限公司 | Numerical control hydraulic pressing machine |
| CN108044981A (en) * | 2017-12-31 | 2018-05-18 | 佛山市南海区心海悠金属制品有限公司 | A kind of hydraulic pressure backwashes device |
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