CN100471665C - Digital control method for mechanical pressure machine transmission and digital control mechanical pressure machine - Google Patents
Digital control method for mechanical pressure machine transmission and digital control mechanical pressure machine Download PDFInfo
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- CN100471665C CN100471665C CNB2005101045975A CN200510104597A CN100471665C CN 100471665 C CN100471665 C CN 100471665C CN B2005101045975 A CNB2005101045975 A CN B2005101045975A CN 200510104597 A CN200510104597 A CN 200510104597A CN 100471665 C CN100471665 C CN 100471665C
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Abstract
The screw extruder drive digital control comprises inputting running data by the operator and work station control computer control motor running, with the motor using switch magnetic resistance speed regulating motor, based on the input data, through the calculation of the work station control computer control motor, switch magnetic resistance speed regulating motor driving the extrusion of the screw. Switch resistance electric motor provides power to the compressor, with simple structure, free speed regulating, frequent start and stop, reversible movement with low, medium and high speed working features.
Description
Technical field
The present invention relates to a kind of punching machine main transmission numerical control method and numerical controlled machinery forcing press, belong to mechanical industry forging equipment field.
Background technology
NSI-1500 (D) digitally-controlled press machine, the compound stamping machine of HIF150 of Komatsu production machine Co., Ltd (KOMATSU) and the duplex rod-type punching machine of ERC of Ohio State Univ-Columbus USA of Japan meeting field engineering Co., Ltd. (AIDA) have all adopted AC servo machinery driving, because high power AC servomotor cost is too high, make punching machine expensive unusually, and can not control the angular displacement and the angular speed of motor, have electric machine control system complexity, rapid wear simultaneously, be not easy defectives such as maintenance.The subject matter that punching machine exists always is that technology accommodation is narrow, operational efficiency is low, die debugging is difficulty relatively, slider displacement, speed are difficult to control, be difficult to realize such as small distance at a slow speed move, stepless speed regulation, low speed forges and dashes anxious numerical control of returning function and transmission; Because the ram speed when punching machine is forged towards workpiece is too fast, impact power is big, produces bigger impact shock and ambient noise, has reduced die life.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of can make punching machine realize slider displacement and the easy numerical control of speed, low speed forge dash suddenly return, the method for energy-saving and noise-reducing vibration damping, safe, characteristics of motion flexible numerical, solve the insoluble for a long time technical barrier in this area.
It is low that another technical problem that the present invention will solve provides a kind of cost simple in structure, the punching machine of high efficiency, the above-mentioned numerical control of realization.
The present invention solves the technical scheme that the Numeric Control Technology problem adopted: this punching machine transmission numerical control method, comprise that operating personnel import service data, the operation of industry control microcomputer control motor, motor adopts magnetic resistance switch speed-adjustable motor, it is characterized in that: the data that provide according to input equipment, through the computing of industry control microcomputer, the action of gauge tap magneto resistance speed-regulating motor, magnetic resistance switch speed-adjustable motor drives the punching machine action, the data that described input equipment provides are included in the slide block pressure stroke s that imports and set on the industry control microcomputer
1, pressure starting point speed v
1Running parameter numeric data with the ram travel frequency n, and hand push button plate and foot push partitioned signal, magnetic resistance switch speed-adjustable motor is equipped with angular displacement sensor, electric machine controller is given the magnetic resistance switch speed-adjustable motor control instruction, angular displacement, the angular speed of control motor, start, stop, just changeing, counter-rotating, acceleration, deceleration, crawl and position keep.
The computing of described industry control microcomputer is according to formula
With
By slide block pressure stroke s
1, speed v
1Calculate crank angle displacement α
1, angular velocity omega
1Value, and by formula ω
0=i ω releases magnetic resistance switch speed-adjustable motor angular displacement, angular speed, and industry control microcomputer gauge tap magneto resistance speed-regulating motor is at angular displacement i α
1Slow down and be i ω in the position
1, according to formula
The industry control microcomputer calculates ω by the n value of input
2, cross the angular displacement of lower dead center motor
The place, when backhaul and idle running, the control of industry control microcomputer makes magnetic resistance switch speed-adjustable motor with i ω
2Rotate, wherein s
1Be the slide block pressure stroke, the ram travel when promptly bearing the pressure starting point, v
1For pressure plays spot speed, R is a throw of crankshaft, and λ is the connecting rod coefficient, α
1Be pressure stroke starting point crank axle corner, ω
1Be pressure stroke crankshaft angular speed, ω
2Be backhaul and idle running crankshaft angular speed, i is a gearratio, ω
0Be motor angular velocity, n is the ram travel number of times, and c is the slider displacement coefficient, α
0' be slide block round trip motor corner displacement.
When described magnetic resistance switch speed-adjustable motor starts, slide block moves downward along the guide rail straight line, when arriving the pressure stroke starting point, industry control microcomputer gauge tap magneto resistance speed-regulating motor slows down, and slide block deceleration simultaneously is the setting value of user's input, and workpiece is implemented tonnage, cross lower dead center, the motor speedup, bent axle speedup, slide block backhaul; When pressing or step on when clicking button, the magnetic resistance switch speed-adjustable motor corner displacement is braked during for certain certain value, magnetic resistance switch speed-adjustable motor and brake braking, and slide block is parked in top dead center position; When pressing or stepping on the double hit button, the starting of magnetic resistance switch speed-adjustable motor forward, slide block moves back and forth continuously by the speed of setting, during push-button reset, magnetic resistance switch speed-adjustable motor and brake braking, slide block is parked in top dead center position; When pressing locking key, the industry control microcomputer is sent out brake signal, and magnetic resistance switch speed-adjustable motor and brake braking stop on the position of being braked slide block; When pressing when returning button, the magnetic resistance switch speed-adjustable motor counter-rotating, press ram is made recoil movement at a slow speed.
The designed numerical controlled machinery forcing press of numerical control method according to the present invention, comprise punching machine and industry control microcomputer, magnetic resistance switch speed-adjustable motor is set, it is characterized in that: magnetic resistance switch speed-adjustable motor connects punching machine by transmission mechanism, electric machine controller connects magnetic resistance switch speed-adjustable motor and industry control microcomputer, data collecting card connects sensor respectively, button panel, brake and industry control microcomputer, described magnetic resistance switch speed-adjustable motor connects punching machine by transmission mechanism and is meant that magnetic resistance switch speed-adjustable motor is coupled as one by shaft coupling and pinion, pinion and gear wheel engagement, gear wheel connects bent axle, force cell is installed in the workbench, and the infrared heat electric transducer is installed on the fuselage in work hazardous area.
Described magnetic resistance switch speed-adjustable motor connects punching machine by transmission mechanism and is meant that magnetic resistance switch speed-adjustable motor connects bent axle by shaft coupling.
Described magnetic resistance switch speed-adjustable motor is installed on the fuselage, output shaft is coupled as one by shaft coupling and pinion, pinion and gear wheel engaged transmission, gear wheel connects bent axle, and brake is installed on the bent axle, and bent axle is installed on the fuselage by bearing, installing connecting rods on the crank web of bent axle, connecting rod connects mutually with slide block, is symmetrically installed with guide rail with central shaft in the fuselage, and slide block and guide rail are slidingly matched.
Described gear wheel also can be flywheel.
Compared with prior art, the beneficial effect that this punching machine transmission numerical control method and numerical controlled machinery forcing press are had is: provide forcing press power by magnetic resistance switch speed-adjustable motor is set, the angular displacement and the angular speed of the instant gauge tap magneto resistance speed-regulating motor of electric machine controller, the account form of industry control microcomputer by setting, by the displacement of motor controller controls punching machine slide block and the variation of speed, magnetic resistance switch speed-adjustable motor connects punching machine by transmission mechanism with result of calculation.Numerical controlled machinery forcing press according to above-mentioned numerical control method design has energy-conservation, starting current is little, electrical network there is not impact, but stepless speed regulation, frequently start-stop, advantages such as rotating, by the main motion of microcomputer control punching machine, the flexible numerical that has realized crank press slide block mechanism motion output characteristics comprises stepless speed regulation, low speed is forged and is dashed the adjusting microinching at a slow speed that suddenly returns with slide block, click, double hit and braking, retraction, the motion that reaches slide block can be according to the different of the difference of converted products technological requirement and material and the purpose that changes, reduced and hit vibration and noise, improved die life; Import the setting ram speed according to the user, the ram travel number of times is adjustable, on a forcing press, possesses the function of low speed, middling speed, high-speed blanking press simultaneously.Digitally-controlled press machine has forward and reverse adjusting microinching and function at a slow speed, and mode transfer, die trial are very convenient, have reduced reducing gear, have improved forcing press efficient, can obviously reduce electric energy loss.The operator safety protection is more effective; pressure is visual, and the overload protection is more effective, and pressure detects in real time and shows; during overload; the punching machine Braking mode, rollback is effectively protected equipment and mould; do not need to be provided with overload protection arrangement; this punching machine does not need Pneumatic Transmission or hydraulic drive, and braking is reliable, greatly simplifies the punching machine structure simultaneously.
Description of drawings
Fig. 1 is the fundamental diagram of embodiment 1 machine numerical control tool forcing press of the present invention.
Fig. 2 is the control block diagram of Fig. 1.
Fig. 3 is the circuit theory diagrams of Fig. 1.
Fig. 4 is the fundamental diagram of embodiment 2 numerical controlled machinery forcing presses of the present invention.
Fig. 5 is the fundamental diagram of embodiment 3 numerical controlled machinery forcing presses of the present invention.
Fig. 1-the 3rd, the most preferred embodiment of the numerical control method of punching machine transmission system of the present invention and numerical controlled machinery forcing press,
Among Fig. 1-5: 1 (U2) electric machine controller 2 (U5) keyboard, 3 (U4 and U6) industry control microcomputers and display screen 4 gear wheels/flywheel 5 pinion 6 (U1) magnetic resistance switch speed-adjustable motors 7 shaft couplings 8 brakes 9 bent axles 10 connecting rods 11 slide blocks 12 fuselages 13 hand push button plate 14 (T1) infrared heat electric transducers 15 foot push plate 16 (T2) pressure sensors 17 workbench 18 guide rails 19 fixed axis U3 data collecting card U5 keyboard U7 power amplifier S1-S3 switch S 4 three-pole switch T3 current sensor KM1 coil K1 contact Z1 brakes.
The specific embodiment
Be described further below in conjunction with Fig. 1-5 pair of punching machine transmission numerical control method of the present invention and numerical controlled machinery forcing press:
Embodiment 1:
As shown in Figure 1, magnetic resistance switch speed-adjustable motor 6 is installed on the fuselage 12, output shaft is coupled as one by shaft coupling 7 and pinion 5, pinion 5 and gear wheel/flywheel 4 engaged transmission, gear wheel/flywheel 4 is combined as a whole with bent axle 9, brake 8 is installed on the bent axle 9, bent axle 9 is installed on the fuselage by bearing, installing connecting rods 10 on the crank web of bent axle 9, connecting rod 10 connects with slide block 11 mutually by bulb or straight pin, is symmetrically installed with guide rail 18 with central shaft in the fuselage 12, and slide block 11 is slidingly matched with guide rail 18, force cell 16 is installed in the workbench 17, and infrared heat electric transducer 14 is installed on the fuselage 12 in work hazardous area.
As shown in Figure 2, the industry control microcomputer connects data collecting card, electric machine controller, keyboard and display screen, data acquisition card connection brake, hand push button plate, foot push plate and sensor, electric machine controller connects magnetic resistance switch speed-adjustable motor, magnetic resistance switch speed-adjustable motor connects punching machine, and punching machine connects brake and sensor.Punching machine is driven by magnetic resistance switch speed-adjustable motor, magnetic resistance switch speed-adjustable motor is driven by electric machine controller, electric machine controller is controlled by the industry control microcomputer, by keyboard running parameter is imported the industry control microcomputer, current sensor and the sensor signal on forcing press are passed to data collecting card, hand push button and foot push signal are passed to data collecting card, the signal of data collecting card is passed to the industry control microcomputer, industry control microcomputer process information shows by display screen, and output order control electric machine controller and brake.
As shown in Figure 3, the A1 of magnetic resistance switch speed-adjustable motor U1, A2, B1, B2, C1, the C2 end connects the A1 of electric machine controller U2, A2, B1, B2, C1, the C2 end, the angle position signal end of magnetic resistance switch speed-adjustable motor U1 connects the ANG1 end of electric machine controller U2, the RS232 signal end of magnetic resistance switch speed-adjustable motor U1 connects the RS232 pin of industry control microcomputer U4, clicking of hand push button plate and foot push plate, double hit, brake three press button S1-S3, be connected respectively to the DI4 of data collecting card U3, DI6, the DI8 pin, infrared heat electric transducer T1, force cell T2 respectively with the AIO of data collecting card U3, the AI2 pin.Three tunnel current sensor T3 links to each other with AI4, AI6, the AI8 pin of data collecting card U3 respectively, brake Z1 connecting terminal K1, be connected with power amplifier U7 between the D014 of coil KM1 and data collecting card U3, the output of data collecting card U3 links to each other with the PCI main line slot of industry control microcomputer U4 mainboard.Keyboard U5 and display screen U6 are connected in industry control microcomputer U4.
Motor U1 is a SRD series, and electric machine controller U2 is a SRM series, and data collecting card U3 is PCI-1710, and pressure sensor T2 is a resistance-strain type.Infrared heat electric transducer T1 is a pyroelectric sensor.Industry control microcomputer U4 is the IPC610-P42.0/256M/40G workbench, and industry control microcomputer U4 also substitutes computational intelligence unit such as available single-chip microcomputer, and the data collecting card U3 also data acquisition board or the device of available other form substitutes.When the display screen of electric machine controller U2 and keyboard change universal display screen and keyboard into, data collecting system and electric machine controller can be integrated in the casing, promptly data collecting card, display screen, keyboard, industry control microcomputer and electric machine controller are integrated into a casing.The IPC support programs are abundant, and it is very convenient to network, and are fit to the demand of Long-distance Control and manufacturing informatization.
Embodiment 2:
As shown in Figure 4, transmission mechanism can also be installed on the fuselage 12 by magnetic resistance switch speed-adjustable motor 6, output shaft connects bent axle 9 by shaft coupling 7, brake 8 is installed on the bent axle 9, bent axle 9 is installed on the fuselage 12 by bearing, installing connecting rods 10 on the crank web of bent axle 9, connecting rod 10 connects mutually with slide block 11, be symmetrically installed with guide rail 18 with central shaft in the fuselage 12, slide block 11 is slidingly matched with guide rail 18, force cell 16 is installed on the workbench 17, and infrared heat electric transducer 14 is installed on the fuselage 12 in work hazardous area.
Embodiment 3:
As shown in Figure 5, transmission mechanism can also be installed on the punching machine fuselage 12 by magnetic resistance switch speed-adjustable motor 6, output shaft is coupled as one by shaft coupling 7 and pinion 5, pinion and gear wheel/flywheel 4 engaged transmission, gear wheel/flywheel 4 is contained on the fixed axis 19, brake 8 is installed on the axle 9, axle 9 is installed on the fuselage 12 by bearing, installing connecting rods 10 on the eccentric neck of gear wheel 4, connecting rod 10 connects mutually with slide block 11, is symmetrically installed with guide rail 18 with central shaft in the fuselage 12, and slide block 11 is slidingly matched with guide rail 18, force cell 16 is installed on the workbench 17, and infrared heat electric transducer 14 is installed on the fuselage 12 in work hazardous area.
Brake 8 can be selected simple band brake for use, Electromagnetic Drive, routine braking.When magnetic resistance switch speed-adjustable motor 6 directly was connected with bent axle 9, brake 8 can adopt electromagnetism to embrace block brake ZWZ series outward, the tight lock of spring, routine braking.Shaft coupling 7 can be selected two engagement type gear couplings for use.
The numerical control method of punching machine transmission system of the present invention, mainly contain: magnetic resistance switch speed-adjustable motor is equipped with angular displacement sensor, electric machine controller will be given control instruction of magnetic resistance switch speed-adjustable motor every a step angle (as 3.75 ° or 7.5 °), so can be by keyboard input and setting slide block pressure stroke s on the industry control microcomputer
1, pressure starting point speed v
1Running parameter with the ram travel frequency n.The industry control microcomputer according to formula (1), (3) by slide block pressure stroke s
1, speed v
1Calculate crank angular velocity ω
1, crank angle shift value α
1, and by the angular displacement of (5) formula release magnetic resistance switch speed-adjustable motor, angular speed, industry control microcomputer gauge tap magneto resistance speed-regulating motor is at i α
1Slow down and be i ω in the position
1According to formula (6), the industry control microcomputer calculates ω by the n value of input
2, cross the angular displacement of lower dead center motor
The place, when backhaul and idle running, the control of industry control microcomputer makes magnetic resistance switch speed-adjustable motor with speedup i ω
2Rotate.Formula is as follows:
By
:
α
0＝iα (4)
ω
0＝iω，n
0＝in (5)
In the formula: s
1Be slide block pressure stroke (ram travel when bearing the pressure starting point), v
1For pressure plays spot speed, R is a throw of crankshaft, and λ is the connecting rod coefficient,
Wherein L is a length of connecting rod, and c is the slider displacement coefficient,
Work as s=s
1The time,
α
1Be pressure stroke starting point crank axle corner displacement, ω
1Be pressure stroke crankshaft angular speed, ω
2Be backhaul and idle running crankshaft angular speed, i is a gearratio, ω
0Be motor angular velocity, E is a blow energy, and J is flywheel and system's rotary inertia thereof, and n is the ram travel number of times, n
0Be motor speed,
Be the slide block round trip, the motor corner displacement.
Realize the numerical controlled machinery forcing press of above-mentioned numerical control method, the operation principle and the course of work are as follows:
The slide block pressure stroke is set in user's keyboard U5 input, pressure plays the numerical value of spot speed and ram travel number of times, industry control microcomputer U4 is by the slide block pressure stroke, pressure starting point velocity amplitude and ram travel number of times calculate corner displacement and the magnitude of angular velocity of magnetic resistance switch speed-adjustable motor U1 when the pressure stroke starting point, angular speed when calculating magnetic resistance switch speed-adjustable motor U1 idle running and backhaul by the ram travel number of times, by industry control microcomputer U4 magnetic resistance switch speed-adjustable motor U1 rotating speed is implemented speed governing, slide block movement with acquisition user input sets value, and reaches the forging of numerical control low speed and dashes the function of suddenly returning with the ram travel number of times.
During the starting of magnetic resistance switch speed-adjustable motor 6 forwards, drive bent axle 9 and rotate, through connecting rod 10, slide block 11 moves downward along guide rail 18 straight lines, arrives pressure stroke starting point s
1It is the bent axle angular displacement alpha
1The time, industry control microcomputer 3 gauge tap magneto resistance speed-regulating motors 6 slow down and are i ω
1, slide block 11 slows down and is the setting value v of user's input
1, workpiece is implemented tonnage, cross lower dead center, motor is in angular displacement
The time, speedup is i ω
2, bent axle 9 speedups are ω
2, slide block 11 backhauls.
When pressing or step on when clicking button, industry control microcomputer 3 is controlled at magnetic resistance switch speed-adjustable motor 6 corner displacements and is
In time, brake, magnetic resistance switch speed-adjustable motor 6 and brake 8 brakings, and slide block 11 is parked in top dead center position.
When pressing or stepping on the double hit button, the starting of magnetic resistance switch speed-adjustable motor 6 forwards, industry control microcomputer 3 control slide blocks 11 move back and forth continuously by the speed of setting, during push-button reset, 3 brake signals of industry control microcomputer, magnetic resistance switch speed-adjustable motor 6 and brake 8 brakings, slide block 11 is parked in top dead center position.
When pressing locking key, 3 brake signals of industry control microcomputer, magnetic resistance switch speed-adjustable motor 6 and brake 8 brakings stop on the position of being braked slide block 11.
When pressing when returning button, magnetic resistance switch speed-adjustable motor 6 counter-rotatings, punching machine slide block 11 is made recoil movement at a slow speed.
The signal of current sensor T3 is after data collecting card U3 enters industry control microcomputer U4, and its numerical value is shown by display screen U6.
Infrared heat electric transducer T1 is arranged on the punching machine hazardous area; when having detected human body and entered in the hazardous area; infrared heat electric transducer T1 gives the industry control microcomputer U1 signal of telecommunication; the alarm lamp of industry control microcomputer U1 is bright, and sends alarm sound, and industry control microcomputer U4 sends braking instruction; the punching machine Braking mode; oppositely rotation at a slow speed of magnetic resistance switch speed-adjustable motor U1 then, slide block 11 rollbacks are effectively protected operator's safety.
Pressure sensor T2 is arranged in the workbench; its signal of telecommunication analog quantity input data collecting card U3; numerical value is presented on the display screen U6 in real time; the microcomputer of industry control simultaneously U4 compares force value and specified value of compressive stress; when force value during greater than rated value; promptly transship; the alarm lamp of industry control microcomputer U4 is bright; send the alarm sound, industry control microcomputer U4 sends out braking instruction, the punching machine Braking mode; oppositely rotation at a slow speed of magnetic resistance switch speed-adjustable motor U1 then; slide block 11 rollbacks, equipment and mould are effectively protected in unloading.
Keyboard is provided with dedicated button, is respectively: when (1) adjusting microinching dress mould, die trial, keep pressing, bent axle changes the driving slide block with per minute one and moves, and button lifts, braking; When (2) clicking, whenever click the slide block round trip; When (3) double hit is pressed, the slide block continuous motion; (4) returning bent axle returns with per minute one commentaries on classics driving slide block; (5) braking motor and brake are braked simultaneously.The F1 key assignments of keyboard is double hit, and F3 is set at and clicks, and F4 is set at crawl, and F8 is set at and returns, and the F12 key assignments is braking (stopping).Wherein click, double hit, braking and hand push button and the chain control of foot push.In addition, can be easy to approachingly, operate non-hazardous place emergency stop button is set the operator.
The display screen U6 pull-down menu that industry control microcomputer U4 is provided with shows that in real time size, rotating speed, slide block pressure stroke, the pressure of motor current play spot speed, pressure, blow energy, ram travel number of times, counting, alarm nine category informations, and industry control microcomputer U4 generates production report automatically.
The present invention can be used for the various plant equipment such as the crank press of punching machine class, the swiveling head forcing press, the step punching press, eccentric gear formula forcing press, crank gearing wedge-type forcing press, hotdie forging press, the pull and stretch forcing press, squeezing press (abbreviation extruder), smoothing press, horizontal forging and upsetting machine, cutting machine, cutting machine, plate shearing machine, cutter, punching and shearing machine, bending machine, bender, folding brake, bead cutter, cold headers, upsetter, radial forging machine, the transmission mechanism of riveting machine, can be used for the transmission mechanism of many link-types and the transmission mechanism of multicrank formula, also can be used for the crank toggle rod type, crank duplex rod-type transmission mechanism, crank-rocker mechanism, crank and rocker mechanism, the interior outer slide transmission mechanism of crank rocker mechanism or double action press.In addition, the present invention also can be used for the crank connecting rod sliding block formula transmission mechanism and the eccentric gear formula connecting rod slider mechanism of other lathe and other purposes, the transmission mechanism of the transmission mechanism of many link-types and multicrank formula, crank toggle rod type, crank duplex rod-type transmission mechanism, crank-rocker mechanism, crank and rocker mechanism, crank rocker mechanism such as clamp mechanism, feed mechanism or feed mechanism, shedding mechanism.
Claims (6)
1, punching machine transmission numerical control method, comprise that operating personnel import service data, the operation of industry control microcomputer control motor, motor adopts magnetic resistance switch speed-adjustable motor, it is characterized in that: the data that provide according to input equipment, through the computing of industry control microcomputer, the action of gauge tap magneto resistance speed-regulating motor, magnetic resistance switch speed-adjustable motor drives the punching machine action, the data that described input equipment provides are included in the slide block pressure stroke s that imports and set on the industry control microcomputer
1, pressure starting point speed v
1Running parameter numeric data with the ram travel frequency n, and hand push button plate and foot push partitioned signal, magnetic resistance switch speed-adjustable motor is equipped with angular displacement sensor, electric machine controller is given the magnetic resistance switch speed-adjustable motor control instruction, angular displacement, the angular speed of control motor, start, stop, just changeing, counter-rotating, acceleration, deceleration, crawl and position keep.
2, punching machine transmission numerical control method according to claim 1, it is characterized in that: the computing of described industry control microcomputer is according to formula
With
By slide block pressure stroke s
1, speed v
1Calculate crank angle displacement α
1, angular velocity omega
1Value, and by formula ω
0=i ω releases magnetic resistance switch speed-adjustable motor angular displacement, angular speed, and industry control microcomputer gauge tap magneto resistance speed-regulating motor is at angular displacement i α
1Slow down and be i ω in the position
1, according to formula
The industry control microcomputer calculates ω by the n value of input
2, cross the angular displacement of lower dead center motor
The place, when backhaul and idle running, the control of industry control microcomputer makes magnetic resistance switch speed-adjustable motor with i ω
2Rotate, wherein s
1Be the slide block pressure stroke, the ram travel when promptly bearing the pressure starting point, v
1For pressure plays spot speed, R is a throw of crankshaft, and λ is the connecting rod coefficient, α
1Be pressure stroke starting point crank axle corner, ω
1Be pressure stroke crankshaft angular speed, ω
2Be backhaul and idle running crankshaft angular speed, i is a gearratio, ω
0Be motor angular velocity, n is the ram travel number of times, and c is the slider displacement coefficient,
Be slide block round trip motor corner displacement.
3, punching machine transmission numerical control method according to claim 1, it is characterized in that: when described magnetic resistance switch speed-adjustable motor starts, slide block moves downward along the guide rail straight line, and when arriving the pressure stroke starting point, industry control microcomputer gauge tap magneto resistance speed-regulating motor slows down, slide block deceleration simultaneously is the setting value of user's input, workpiece is implemented tonnage, cross lower dead center, the motor speedup, the bent axle speedup, the slide block backhaul; When pressing or step on when clicking button, the magnetic resistance switch speed-adjustable motor corner displacement is braked during for certain certain value, magnetic resistance switch speed-adjustable motor and brake braking, and slide block is parked in top dead center position; When pressing or stepping on the double hit button, the starting of magnetic resistance switch speed-adjustable motor forward, slide block moves back and forth continuously by the speed of setting, during push-button reset, magnetic resistance switch speed-adjustable motor and brake braking, slide block is parked in top dead center position; When pressing locking key, the industry control microcomputer is sent out brake signal, and magnetic resistance switch speed-adjustable motor and brake braking stop on the position of being braked slide block; When pressing when returning button, the magnetic resistance switch speed-adjustable motor counter-rotating, press ram is made recoil movement at a slow speed.
4, the numerical controlled machinery forcing press that numerical control method according to claim 1 is controlled, comprise punching machine and industry control microcomputer, magnetic resistance switch speed-adjustable motor is set, it is characterized in that: magnetic resistance switch speed-adjustable motor connects punching machine by transmission mechanism, electric machine controller connects magnetic resistance switch speed-adjustable motor and industry control microcomputer, data collecting card connects sensor respectively, button panel, brake and industry control microcomputer, described magnetic resistance switch speed-adjustable motor connects punching machine by transmission mechanism and is meant that magnetic resistance switch speed-adjustable motor passes through shaft coupling (7) and is coupled as one with pinion (5), pinion (5) and gear wheel (4) engagement, gear wheel (4) connects bent axle (9), force cell (16) is installed in the workbench (17), and infrared heat electric transducer (14) is installed on the fuselage (12) in work hazardous area.
5, numerical controlled machinery forcing press according to claim 4 is characterized in that: described magnetic resistance switch speed-adjustable motor replaces with magnetic resistance switch speed-adjustable motor by shaft coupling (7) connection bent axle (9) by the mode that transmission mechanism connects punching machine.
6, numerical controlled machinery forcing press according to claim 4, it is characterized in that: described magnetic resistance switch speed-adjustable motor (6) is installed on the fuselage (12), output shaft is coupled as one by shaft coupling (7) and pinion (5), pinion (5) and gear wheel (4) engaged transmission, gear wheel (4) connects bent axle (9), brake (8) is installed on the bent axle (9), bent axle (9) is installed on the fuselage (12) by bearing, installing connecting rods (10) on the crank web of bent axle (9), connecting rod (10) connects mutually with slide block (11), be symmetrically installed with guide rail (18) with central shaft in the fuselage (12), slide block (11) is slidingly matched with guide rail (18).
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| CNB2005101045975A CN100471665C (en) | 2005-11-25 | 2005-11-25 | Digital control method for mechanical pressure machine transmission and digital control mechanical pressure machine |
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| CN103862704A (en) * | 2012-12-11 | 2014-06-18 | 虞文娟 | Intelligently controlled squeezing device |
| DE102013105468B4 (en) * | 2013-05-28 | 2015-10-01 | Schuler Pressen Gmbh | Method for controlling a press with variable gear ratio |
| CN106273610A (en) * | 2016-08-30 | 2017-01-04 | 无锡飞达纺织印染机械有限公司 | A kind of press machine drive mechanism |
| TWI678277B (en) * | 2017-03-21 | 2019-12-01 | 德律科技股份有限公司 | Barrier detection method and anti-collision method of pressing bed |
| CN108943830B (en) * | 2017-05-25 | 2020-07-28 | 沃得精机(中国)有限公司 | Speed regulating device and speed regulating method suitable for frequency converter of press machine |
| CN108189462A (en) * | 2017-12-19 | 2018-06-22 | 佛山市洪博创展自动化科技有限公司 | A kind of four-column hydraulic press energy-saving control system and its method |
| CN110153733A (en) * | 2019-06-24 | 2019-08-23 | 重庆宏钢数控机床有限公司 | Multistage guide rail special purpose machine tool |
| CN110153732A (en) * | 2019-06-24 | 2019-08-23 | 重庆宏钢数控机床有限公司 | A kind of special purpose machine tool lathe bed |
| CN113524757A (en) * | 2021-08-12 | 2021-10-22 | 无锡乔森精工机械有限公司 | Crank press with pressure alarming function |
| CN117432671B (en) * | 2023-11-20 | 2024-07-05 | 中机锻压江苏股份有限公司 | High-safety electric control follow-up main control valve and use method thereof |
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| CN1970284A (en) | 2007-05-30 |
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