CN100498612C - Numerical control method of die casting machine and numerical control die casting machine - Google Patents

Abstract

The numerical control method of diecasting machine and the numerical control diecasting machine, belong to the casting mechanical domain. Including the input performance data, the labor-control the micro computer control motor movement, its characteristic lies in: The electromotor uses the switch magnetic resistance timing electromotor, controls movement of the switch magnetic resistance timing electromotor operation, after operation of the labor-control the micro computer according to the performance data provided by the input services, then the switch magnetic resistance timing electromotor drives diecasting machine movement. The numerical control method has can realize the microcomputer intelligence numerical control electric motor in angular displacement , angular speed as well as on-off, normal-reverse transfer, is easy to realize numerical control of each installment movement of the implementing agency in time,displacement ,speed and pressure, solves difficult technical problems which domain with this area since long ago. The numerical control diecasting machines have the merits of the structure simplicity, the lower cost and the higher working efficiency etc.

Description

The numerical control method of die casting machine and numerical control die casting machine

Technical field

The present invention relates to a kind of numerical control method and numerical control die casting machine of die casting machine, belong to the foundry machinery field.

Background technology

The History of Die Casting Machine trend is all-electric driving, and up-to-date all-electric die casting machine adopts AC servomotor to drive, and costs an arm and a leg but exist, the control mode complexity, rapid wear is not easy shortcomings such as maintenance, most importantly motor can not the pilot angle displacement, angular velocity.Each device of the topworks of die casting machine needs displacement, speed, pressure accurately controlled, frequently start-stop, frequently moves back and forth, and this becomes the insoluble technical barrier in this area.

Summary of the invention

The technical problem to be solved in the present invention is: the numerical control method that a kind of die casting machine is provided, can realize machine angular displacement of microcomputer-based intelligent numerical control electric and angular velocity and start-stop, rotating, easily realize time, displacement and the speed of each actuating unit motion of die casting machine, the Digital Control of pressure, solve the insoluble for a long time technical barrier in this area.

Another technical matters that the present invention will solve provides a kind of numerical control die casting machine of realizing above-mentioned numerical control method, have simple in structure, cost is low, the characteristics of high efficiency.

The technical solution adopted for the present invention to solve the technical problems is: the numerical control method of die casting machine, comprise the input service data, the operation of industry control Controlled by Microcomputer motor, motor adopts magnetic resistance switch speed-adjustable motor, the service data that provides according to input equipment, through the computing of industry control microcomputer, the action of gauge tap magneto resistance speed-regulating motor, the action of magnetic resistance switch speed-adjustable motor drive pressure casting machine, it is characterized in that: the described service data that provides according to input equipment, through the computing of industry control microcomputer, comprise by the strain gauge on the die casting machine and detect ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆Data message, data message is passed to the industry control microcomputer, the industry control microcomputer determines to eject total travel straight-line displacement S ₃With total travel angular displacement A ₃, matched moulds total travel straight-line displacement S ₄With total travel angular displacement A ₄, lock pin total travel straight-line displacement S ₅, S ₆With total travel angular displacement A ₅, A ₆Described magnetic resistance switch speed-adjustable motor drive pressure casting machine action, during the work starting, two magnetic resistance switch speed-adjustable lock pin motors of industry control microcomputer instruction are just changeing starting, turn over total travel angular displacement A ₅, A ₆, magnetic resistance switch speed-adjustable matched moulds motor is with angular velocity omega simultaneously ₄Turn over total travel angular displacement A ₄, matched moulds, the position keeps; The positive tarnsition velocity ω of magnetic resistance switch speed-adjustable injection electric motor starting ₁, when the value of strain gauge reaches injection pressure p ₁Value is injected into melt in the die cavity, less than dwell pressure p ₂Shi Weijin is when equaling dwell pressure p ₂, the dwell time picks up counting, and the start position keeps function; Dwell time reaches t ₁The time, pick up counting cool time; When reaching t cool time ₂The time, magnetic resistance switch speed-adjustable matched moulds electric motor starting counter-rotating total travel angular displacement A ₄, die sinking; Two magnetic resistance switch speed-adjustable lock pin motor counter-rotating total travel angular displacement A ₅, A ₆, the magnetic resistance switch speed-adjustable push-out motor is with angular velocity omega simultaneously ₃Just changeing total travel angular displacement A ₃, ejecting product, initial position is got back in counter-rotating then, stops.

Described magnetic resistance switch speed-adjustable motor comprises motor and controller, motor mounting has angular displacement sensor, motor relies on the pulse power supply mode to work, controller instructs to Motor Control, angular displacement, angular velocity and the starting of control motor, stop, just changeing, counter-rotating, acceleration, deceleration, crawl and position keep.

The service data that described input equipment provides is included on the industry control microcomputer segmentation or not segmentation input and sets title material, product volume V, injection speed v ₁, dwell time t ₁, cool time t ₂, ejection cycle t ₃, matched moulds time t ₄, lock pin time t ₅, t ₆, mode transfer stroke s ₂, injection pressure p ₁, dwell pressure p ₂, ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆, die cavity counts the running parameter numerical value of m, and controller data information, button panel switching signal.

The computing of described industry control microcomputer is according to formula $S_{}$ ${}_1=k\frac{4V}{{\mathrm{\&pi;<figure-callout\; id="2"\; label="D"\; filenames="C200610044475E00151.png,C200610044475E00171.png"\; state="\{\{state\}\}">D</figure-callout>}}^2},$ $A=2\mathrm{\&pi;}\frac{S}{h},$ $\mathrm{\&alpha;}=2\mathrm{\&pi;}\frac{s}{h},$ $v=\frac{s}{t},$ $\mathrm{\&omega;}=2\mathrm{\&pi;}\frac{v}{h}=2\mathrm{\&pi;}\frac{s}{\mathrm{ht}},$ Calculate the angular displacement and the angular velocity of each magnetic resistance switch speed-adjustable motor, wherein α is angular displacement, and ω is an angular velocity, s is straight-line displacement, A is the total travel angular displacement, and S is the total travel straight-line displacement, and v is a space rate, h is the helical pitch of screw flight, V is a product volume, and D is for pressing the chamber diameter, and k is a correction factor, t is a run duration, S ₁Be the injection displacement.

Described magnetic resistance switch speed-adjustable motor drive pressure casting machine action, during the work starting, two magnetic resistance switch speed-adjustable lock pin motors 5,6 of industry control microcomputer instruction are just changeing starting, turn over angular displacement A ₅, A ₆, magnetic resistance switch speed-adjustable matched moulds motor 4 is with angular velocity omega simultaneously ₄Turn over angular displacement A ₄, matched moulds, the position keeps; The positive tarnsition velocity ω of magnetic resistance switch speed-adjustable injection motor 1 starting ₁, when the value of strain gauge 15 reaches input value p ₁, melt is injected in the die cavity, less than dwell pressure p ₂Shi Weijin, the dwell time picks up counting, when equaling dwell pressure p ₂, the start position keeps function; Dwell time reaches t ₁The time, pick up counting cool time; When reaching t cool time ₂The time, magnetic resistance switch speed-adjustable matched moulds motor 4 starting angle of twist displacement A ₄, die sinking; Two magnetic resistance switch speed-adjustable lock pin motor 5,6 angle of twist displacement A ₅, A ₆, magnetic resistance switch speed-adjustable push-out motor 3 is with angular velocity omega simultaneously ₃Positive corner displacement A ₃, ejecting product, initial position is got back in counter-rotating then, stops.

Compared with prior art, the beneficial effect that the numerical control method of this die casting machine and numerical control die casting machine are had is: because magnetic resistance switch speed-adjustable motor drives, the angular displacement of digit control motor and angular velocity, greatly simplify the structure of die casting machine, angular displacement by the gauge tap magneto resistance speed-regulating motor, angular velocity and start-stop, the feedback of rotating and counter stress sensor, realize that each device of die casting machine topworks rotates, the microcomputer-based intelligent flexibility digitizing of mobile output characteristics and pressure characteristic is stepless regulated, low pressure, the middle pressure, high pressure, low speed, middling speed, annex at a high speed, each the device motion of topworks that reaches die casting machine can be according to the difference of institute's converted products, the difference of technological requirement and material different and the purpose that changes.This numerical control die casting machine starting performance is good, and electrical network is not had impact; Transmission is safe and reliable, and stability is high, long service life; Slow running does not generate heat, and the efficient height is easy to installation and maintenance.Utilize the industry control microcomputer to operate, reach the full cut-off ring control that keyboard input, screen display, system's operation, system monitoring, signal feedback and correction and crisis are handled.Intelligent numerical control, simple operation, security of operation is easy to safeguard; Energy-conservation, clean and tidy, quiet, precision is high and easy care, rapid wear not.Industry control microcomputer support programs are abundant, and it is very convenient to network, and are fit to the demand of Long-distance Control and manufacturing informatization.

Description of drawings

Fig. 1 is the structural representation of numerical control die casting machine of the present invention.

Fig. 2 is a numerical control die casting machine injection apparatus structure synoptic diagram of the present invention.

Fig. 3 is numerical control die casting machine mode transfer device of the present invention, mold closing mechanism, liftout attachment structural representation.

Fig. 4 is a numerical control die casting machine lock pin apparatus structure synoptic diagram of the present invention.

Fig. 5 is the control principle block diagram of Fig. 1.

Fig. 6 is the circuit theory diagrams of Fig. 1.

Fig. 7 is numerical control die casting machine embodiment 2 mold closing mechanisms of the present invention, liftout attachment structural representation.

Fig. 8 is numerical control die casting machine embodiment 3 mold closing mechanism structural representations of the present invention.

Fig. 9 is numerical control die casting machine embodiment 4 mold closing mechanism structural representations of the present invention.

Fig. 1-the 6th, the most preferred embodiment of the numerical control method of die casting machine of the present invention and numerical control die casting machine, among Fig. 1-9:

7,21,47 shaft couplings 8,19,46,59 bearings 9,22,24,37,43,66,71 nuts 10,67,73 slide blocks 11,36,41,56,57,65,70 screw rods 12,69,75 web joints, 13 injection rods 14,51,68,74 guide rails, 16 fuselages 17,18 20 sprocket wheel 23 crossheads 25,27,29,31,33 pins, 26 intermediate bars, 28 support seats 30, fixed form 39 push rods 42 before 64 back links, 32 front rods, 34 dynamic models, 35 cover half 38,72 movable platens, 44 splined shafts, 45 bearing plates 48,58,61 supports, 49 pull bars, 52 back fixed form 53 packing rings 54 hinge wheels 55 chains 60 bearing seats 62 push rods 63 cores.

U1 (1) magnetic resistance switch speed-adjustable injection motor U2 (2) magnetic resistance switch speed-adjustable mode transfer motor U3 (3) magnetic resistance switch speed-adjustable push-out motor U4 (4) magnetic resistance switch speed-adjustable matched moulds motor U5 (5) magnetic resistance switch speed-adjustable lock pin motor U6 (6) magnetic resistance switch speed-adjustable lock pin motor U7-U12 controller U13 232/485 converter U14 display screen U15 data collecting card U16 industry control microcomputer U17 keyboard T1-T5 (15), (40), (50) strain gauge T6 three-phase current sensor, S1 three-pole switch S2-S6 switch.

Embodiment

Numerical control method and numerical control die casting machine below in conjunction with Fig. 1-6 pair die casting machine of the present invention are described further:

Embodiment 1:

As shown in Figure 1: the motor of the injection device of numerical control die casting machine, mode transfer device, liftout attachment, mold closing mechanism and lock pin device adopts magnetic resistance switch speed-adjustable injection motor 1, magnetic resistance switch speed-adjustable mould to transfer motor 2, magnetic resistance switch speed-adjustable push-out motor 3, magnetic resistance switch speed-adjustable matched moulds motor 4 and magnetic resistance switch speed-adjustable lock pin motor 5,6 respectively.Magnetic resistance switch speed-adjustable injection motor 1, magnetic resistance switch speed-adjustable mode transfer motor 2, magnetic resistance switch speed-adjustable push-out motor 3, magnetic resistance switch speed-adjustable matched moulds motor 4 and magnetic resistance switch speed-adjustable lock pin motor 5,6 are installed in respectively on injection device, mode transfer device, liftout attachment, mold closing mechanism and the lock pin device.

As shown in Figure 2: injection device comprises that magnetic resistance switch speed-adjustable injection motor 1 is installed on the fuselage 16, the output shaft of magnetic resistance switch speed-adjustable injection motor 1 is by shaft coupling 7 connecting screw rods 11, screw rod 11 is installed in the fuselage 16 by bearing 8, screw rod 11 and nut 9 screw pair transmissions, nut 9 is coupled as one with slide block 10, fuselage 16 is provided with guide rail 14, guide rail 14 is slidingly matched with slide block 10, web joint 12 gets an end and slide block 10 connects as one, and the other end of web joint 12 and injection rod 13 connect as one.

Strain gauge 15 is installed on the web joint 12, and totally three of strain gauges 15 are installed one herein.

As shown in Figure 3: mold closing mechanism comprises that magnetic resistance switch speed-adjustable matched moulds motor 4 is installed on the support 58, support 58 is coupled as one with back fixed form 52, the output shaft of magnetic resistance switch speed-adjustable matched moulds motor 4 is by shaft coupling 21 connecting screw rods 57, screw rod 57 cylindrical sections are installed in the fixed form 52 of back by bearing 59, nut 22 and screw rod 57 screw pair transmissions, crosshead 23 connects as one with nut 22, crosshead 23 is connected by pin 25 with intermediate bar 26, intermediate bar 26 connects back link 30 by pin 27, back link 30 is by an end of pin 31 connection front rods 32, and the other end of front rod 32 connects movable platens 42 by pin 33.One end of support seat 28 connects back link 30 by pin 29, and the other end of support seat 28 is coupled as one with back fixed form 50.The axis of symmetry with fuselage is the center, and four pull bars 49 connect back fixed form 52, movable platen 42 and 38, four screw rods 56 of preceding fixed form respectively and are connected with pull bar 49, and movable platen 42 is slidingly matched with pull bar 49.

Liftout attachment comprises that magnetic resistance switch speed-adjustable push-out motor 3 is installed on the support 48, support 48 is coupled as one with movable platen 42, the output shaft of magnetic resistance switch speed-adjustable push-out motor 3 connects an end of splined shaft 44 by shaft coupling 47, splined shaft 44 is enclosed within screw rod 41 1 ends, splined shaft 44 is slidingly matched with screw rod 41 splines, the other end of screw rod 41 and push rod 39 connect as one, splined shaft 44 cylindrical section connection bearings 46, bearing 46 connection bearing seat boards 45, bearing plate 45 connects as one with movable platen 42, nut 43 is connected with screw rod 41 screw pairs, and nut 43 is coupled as one with movable platen 42.

Strain gauge 40 is installed in screw rod 41 1 ends.

The mode transfer device comprises that magnetic resistance switch speed-adjustable mode transfer motor 2 is installed on the support 61, and support 61 is coupled as one with back fixed form 52.The output shaft of magnetic resistance switch speed-adjustable mode transfer motor 2 is by an end of shaft coupling 17 coupling shafts 18, axle 18 is installed on the bearing seat 60 by bearing 19, axle 18 is coupled as one with sprocket wheel 20, sprocket wheel 20 is by chain 55 and sprocket wheel 20 chain drives, the endoporus of sprocket wheel 20 has screw thread, the screw thread of endoporus and screw rod 56 screw pair transmissions, screw rod 56 connects as one with an end of pull bar 49, match with packing ring 53 in the end of sprocket wheel 54, packing ring 53 is enclosed within outside the screw rod 56 and is pressed on the fixed form 50 of back by sprocket wheel 53, and back fixed form 52 is slidingly matched with guide rail 51.

Strain gauge 50 is installed on the packing ring 53.

As shown in Figure 4: what the structure of lock pin device was different with injection device structure shown in Figure 2 is that web joint 12 connects push rod 62, core 63.15 2 of strain gauges are installed in respectively on the web joint 12 of two groups of lock pin devices.

As shown in Figure 5, the industry control microcomputer connects data collecting card, converter, keyboard and display screen, data acquisition card connection button panel, sensor.Converter connects controller, and controller connects magnetic resistance switch speed-adjustable injection motor, magnetic resistance switch speed-adjustable matched moulds motor, magnetic resistance switch speed-adjustable push-out motor, magnetic resistance switch speed-adjustable mode transfer motor and two magnetic resistance switch speed-adjustable lock pin motors respectively.Magnetic resistance switch speed-adjustable injection motor, magnetic resistance switch speed-adjustable matched moulds motor, magnetic resistance switch speed-adjustable push-out motor, magnetic resistance switch speed-adjustable mode transfer motor and two magnetic resistance switch speed-adjustable lock pin motors are connected injection device, mold closing mechanism, liftout attachment, mode transfer device and two cover lock pin devices, and injection device, mold closing mechanism, liftout attachment, mode transfer device and two cover lock pin devices are formed die casting machine.Die casting machine connects sensor.

As shown in Figure 6, magnetic resistance switch speed-adjustable motor links to each other with controller, the A1 of magnetic resistance switch speed-adjustable motor U1-U6, A2, B1, B2, C1, the C2 end connects the A1 of controller U7-U12, A2, B1, B2, C1, the C2 end, the angle position signal ANG end of magnetic resistance switch speed-adjustable motor U1-U6 connects the ANG1 end of controller U7-U12, the RS232/485 signal end of magnetic resistance switch speed-adjustable motor U1-U6 connects the RS232/485 end of converter U13, the RS232 end of converter U13 connects the RS232 pin of industry control microcomputer U16, five pushbutton switch S1-S5 of hand push button plate, be connected respectively to the DI0 of data collecting card U15, DI2, DI4, DI6, the DI8 pin, strain gauge T1-T5, the AI1 of three-phase current sensor T6 and data collecting card U15, AI3, AI5, AI7, AI9, the AI2 port links to each other, the AI2 port connects three-phase current sensor T6, three-phase supply A, B, C connects each switched reluctance variable speed machine power supply L1 by switch S 1, L2, L3, the output terminal of data collecting card U15 links to each other with the PCI main line slot of industry control microcomputer U16 mainboard.Keyboard U17 and display screen U14 are connected in industry control microcomputer U16.

Embodiment 2:

As shown in Figure 7: the back link 64 that different with embodiment 1 Fig. 3 is in the mold closing mechanism connects pin 29 and pins 31, and intermediate bar 61 connects pin 31 and pins 25.Screw rod 65 connects push rod 39 by nut 66, slide block 67, web joint 69 in the liftout attachment, screw rod 65 and nut 66 screw pair transmissions, nut 66 connects as one with slide block 67, slide block 67 is slidingly connected with guide rail 68, web joint 69 connects as one with slide block 68, one end and the web joint 69 of push rod 39 connect as one, and guide rail 68 is fixed in the movable platen 42.

Embodiment 3:

As shown in Figure 8: different with embodiment 1 Fig. 3 is screw rod 70 and nut 71 screw pair transmissions in the mold closing mechanism, and nut 71 connects as one with movable platen 72.

Embodiment 4:

As shown in Figure 9: the nut 22 that different with embodiment 2 Fig. 7 is in the mold closing mechanism connects as one with slide block 73, and slide block 73 is slidingly matched with guide rail 74, and slide block 73 web joints 75 connect as one, and guide rail 74 is fixed on the fuselage 16.Back link 64 connects back fixed form 52 by pin 29.

Numerical control method of the present invention mainly contains:

Segmentation or not segmentation input and setting title material, product volume V, injection speed v on the industry control microcomputer ₁, dwell time t ₁, cool time t ₂, ejection cycle t ₃, matched moulds time t ₄, lock pin time t ₅, t ₆, mode transfer stroke s ₂, injection pressure p ₁, dwell pressure p ₂, ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆, die cavity counts the running parameter numerical value of m, and the sensor data information on controller data information and the die casting machine, button panel switching signal.By sensor ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆Data message, data message is passed to the industry control microcomputer, the industry control microcomputer is determined ejection stroke S ₃With angular displacement A ₃, mould-closing stroke S ₄With angular displacement A ₄, lock pin stroke S ₅, S ₆With angular displacement A ₅, A ₆

$\mathrm{\&alpha;}=2\mathrm{\&pi;}\frac{S}{h},$ $A=2\mathrm{\&pi;}\frac{S}{h}---\left(1\right)$

$v=\frac{s}{t}---\left(2\right)$

$\mathrm{\&omega;}=\frac{2\mathrm{\&pi;}}{h}v=2\mathrm{\&pi;}\frac{s}{\mathrm{ht}},---\left(3\right)$

${\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="C200610044475E00171.png"\; state="\{\{state\}\}">S</figure-callout>}}_1=k\frac{V}{A}=k\frac{4V}{{\mathrm{\&pi;D}}^2}---\left(4\right)$

α ₀₂＝iα ₂ (5)

α is angular displacement (rad) in the formula; ω is angular velocity (rad/s); S is rectilinear motion displacement of the lines (m); A is the total travel angular displacement, and S is the total travel straight-line displacement, and v is rectilinear motion linear velocity (m/s); H is the helical pitch (m) of screw flight; T is the time, and D is for pressing the chamber diameter, and k is a correction factor, and V is product volume, v ₁Be injection speed.A is an angular displacement, and S is a straight-line displacement amount, α ₀₂Be the angular displacement of mode transfer motor, α ₂Be the mode transfer angular displacement, i is the chain transmission ratio of gear, S ₁Be the injection displacement.

The industry control microcomputer calculates the angular displacement and the angular velocity of each magnetic resistance switch speed-adjustable motor according to formula (1)-(5), by input value product volume V, injection speed v ₁Calculate the angular displacement A of magnetic resistance switch speed-adjustable injection motor ₁And angular velocity omega ₁, by mode transfer stroke s ₂Calculate magnetic resistance switch speed-adjustable mode transfer motor angular displacement i α ₂, by ejection stroke S ₃With ejection cycle t ₃Calculate magnetic resistance switch speed-adjustable push-out motor angular velocity omega ₃, by mould-closing stroke S ₄With matched moulds time t ₄Calculate magnetic resistance switch speed-adjustable matched moulds motor angular velocity ω ₄, by lock pin time t ₅, t ₆, lock pin stroke S ₅, S ₆Calculate magnetic resistance switch speed-adjustable lock pin motor angular velocity ω ₅, ω ₆

Principle of work and process are as follows:

Principle of work and process are divided into die trial, two kinds of situations of production work.During die trial, on the industry control microcomputer, import mode transfer stroke s earlier ₂, ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆Service data; Mode transfer starts, and unclamps nut 24, and industry control Controlled by Microcomputer magnetic resistance switch speed-adjustable mode transfer motor 2 rotates, and turns over angular displacement i α ₂, drive sprocket 20 rotates, and by 54 transmissions of chain 55 sprocket wheels, sprocket wheel 54 helical motions make back fixed form 52 move mode transfer stroke s along guide rail 51 ₂, clamp nut 24 again.Magnetic resistance switch speed-adjustable matched moulds motor 4 is just changeing starting, drives screw rod 57 rotations, and nut 22 moves, and promotes the clamping action, drives movable platen 42 motions, makes the mould closure, and the value of monitoring when strain gauge 50 reaches mold clamping force P ₄The time, magnetic resistance switch speed-adjustable matched moulds motor 4 stops operating, and the position keeps, and the industry control microcomputer stores the angular displacement A of this moment ₄With mould-closing stroke S ₄Value; Magnetic resistance switch speed-adjustable push-out motor 3 is just changeing starting, drive screw 41 helical motions, and push rod 39 moves, and ejects product, and the value of monitoring when strain gauge 40 reaches ejecting force P ₃, the angular displacement A that industry control microcomputer record magnetic resistance switch speed-adjustable push-out motor this moment 3 turns over ₃With ejection stroke S ₃Magnetic resistance switch speed-adjustable lock pin motor 5,6 is just changeing starting, and the value of monitoring when strain gauge reaches lock pin power P ₅, P ₆, the angular displacement A that industry control microcomputer record magnetic resistance switch speed-adjustable lock pin this moment motor 5,6 turns over ₅, A ₆With ejection stroke S ₅, S ₆Segmentation or not segmentation input and setting title material, product volume V, injection speed v on the industry control microcomputer ₁, dwell time t ₁, cool time t ₂, ejection cycle t ₃, matched moulds time t ₄, lock pin time t ₅, t ₆, injection pressure p ₁, dwell pressure p ₂, die cavity counts the running parameter numerical value of m.During the work starting, two magnetic resistance switch speed-adjustable lock pins of industry control Controlled by Microcomputer motor 5,6 is just changeing starting, the angular displacement A that turns over ₅, A ₆, by the screw pair transmission, two cores 63 move lock pin stroke S ₅, S ₆, driving core 63 respectively and insert in the mould, magnetic resistance switch speed-adjustable matched moulds motor 4 startings simultaneously are with angular velocity omega ₄Turn over angular displacement A ₄, driving screw rod 57 and rotate, nut 22 moves mould-closing stroke S with crosshead 23 straight lines ₄, making the mould closure, magnetic resistance switch speed-adjustable matched moulds motor 4 start positions keep function; Magnetic resistance switch speed-adjustable injection motor 1 is just changeing starting, when the value of strain gauge 15 reaches input setting value p ₁, screw rod 7 angular velocity reach ω ₁, injection rod 13 injection speed v ₁The motion, melt is injected in the die cavity, magnetic resistance switch speed-adjustable injection motor 1 at sensor 15 pressure less than dwell pressure p ₂Shi Weijin equals dwell pressure p up to sensor 15 pressure ₂, the dwell time starts timing, and injection motor 1 start position keeps function; Dwell time reaches t ₁The time, pick up counting cool time; When reaching t cool time ₂The time, magnetic resistance switch speed-adjustable matched moulds motor 4 starting angle of twist displacement A ₄, die sinking is braked after getting back to initial position; Two magnetic resistance switch speed-adjustable lock pin motor 5,6 angle of twist displacement A ₅, A ₆ Drive core 63 respectively and return to initial position, the microcomputer of industry control simultaneously command switch magneto resistance speed-regulating push-out motor 3 is with angular velocity omega ₃Positive corner displacement A ₃, screw rod 41 helical motions, push rod 39 moves ejection stroke S ₃, ejecting product, initial position is got back in starting counter-rotating then, brakes and stops.

Stop when pressing/during locking key switch S 2-S6, actuating signal is by the switching value DI port input industry control microcomputer of data collecting card U15, and the industry control microcomputer is sent out braking instruction, the controller brake motor, die casting machine stops on the position of being braked.

Screen graph animation and menu display setting parameter and procedure parameter and process change curve, the run duration of the real-time display switch magneto resistance speed-regulating motor of the cascade menu of display screen and angular displacement, angular velocity.

Button is provided with crawl, manual, semi-automatic, full-automatic, braking totally 5 pushbutton switch S2-S6.Keyboard or touch-screen setting: the button of (1) crawl on keyboard has six: injection motor inching button, push-out motor inching button, matched moulds motor inching button, mode transfer motor inching button, two lock pin motor inching buttons, when pinning inching button, corresponding electric motor starting crawl state, the motor slow rotation, release button, motor braking, action stops.(2) manually the button on keyboard has 12: the injection motor advances and back, push-out motor advance and back, matched moulds motor advance and back, mode transfer motor advance and back, two lock pin motors advance and back, when pressing hand push button, corresponding electric motor starting manual state, the motor slow rotation, till finishing this action, when motor angular displacement arrival reference mark, motor braking, action stops.(3) each action of semi-automatic technology overall process is carried out in order automatically, finishes a working cycle.(4) full-automatic working cycle of die casting machine connects a working cycle and goes on automatically.

Push-out motor action round trip, counter increases 1 * m.Initial set value can be 0.

Because the memory storage function of industry control microcomputer, when the same workpiece of processing, industry control microcomputer intelligence is the corresponding data of prompting input automatically.When more new material or mould, need the input working parameter data, not more when new material or mould, industrial computer automatically performs the data of memory up to data change.When adopting the die casting expert system software, to analyze data and can directly be stored in the industry control microcomputer, industry control microcomputer intelligence is the corresponding data of prompting input automatically.

Can on the friction position of model machine, temperature sensor be set, temperature sensor numerical value is passed to the industry control microcomputer by data collecting card, when temperature during greater than setting value, the industry control microcomputer starts lubricated, apply lubricating oil, the interval time that the storage of industry control microcomputer is lubricated, use for the injector of other similar models.

Can settle camera and vision sensor at the mould die joint place of front template, the monitoring die casting go out part situation and foreign matter situation.In the time of in object enters the workspace or when the value of strain gauge during greater than set-point, the signal of sensor drives microcomputer and sends out braking instruction, the alarm lamp is bright, the prompting of sounding, and the die casting machine brake hard, oppositely rotation at a slow speed of motor is then return, and unloads.

When changing new die, can adopt test mould earlier, mounting temperature sensor on test mould, sensor values is passed to the industry control microcomputer by data collecting card, and industry control microcomputer record stores its numerical value, uses for industry control microcomputer intellectualized operation; Melt pressure sensor cavity pressure can be set in die cavity, use for industry control microcomputer intellectualized operation.Temperature sensor can be set, monitoring heating-up temperature, chilling temperature.Can also calculate mutually deserved parameter to computing formula programming input industry control microcomputer, use for industry control microcomputer intellectualized operation.

Screw rod can adopt the ball-screw screw rod.The also available duplex bar of mold closing mechanism fagging formula.The mode transfer device also can replace with regulating the length of connecting rod device, and liftout attachment also can replace with the mechanical spring device.The lock pin device also can.Shaft coupling is selected positive coupling for use.When the needs high pulling torque, can set up gear drive or belt gear at motor output shaft.Also the available travel switch and the time relay are assisted control.Strain gauge 15 also can be installed on the bearing seat.

Electric machine controller U7-U12 is a SRD series, and data collecting card U15 can select PCI-1710 for use, and strain gauge T1-T5 is a resistance-strain type.Industry control microcomputer U16 can select IPC610-P4 2.0/256M/40G workbench for use, and industry control microcomputer U16 also replaces unit with computing function such as available microprocessors (CPU), single-chip microcomputer, programmable calculator, Programmable Logic Controller (PLC).The data collecting card U15 also data acquisition board or the device of available other form substitutes.Display screen can be selected touching display screen for use.Can be integrated into a casing to data collecting card, display screen, keyboard, industry control microcomputer and controller.

The present invention can be used for hot pressing chamber or cold pressing chamber die casting machine, horizontal plunger die casting machine, vertical die-casting machine, angie type die casting machine, multimode die casting machine, universal die casting machine, special-purpose die casting machine, eccentric die casting machine, polycomponent die casting machine, the die casting machine that has two or more die casting equipments, precision or ultraprecise die casting machine, smart fast close die casting forming machine, also can be used for semisolid casting forming, evacuated die-casting process shaping, pore-free die casting forming machine.

Claims (4)

1, the numerical control method of die casting machine, comprise input service data, the operation of industry control Controlled by Microcomputer motor, motor adopts magnetic resistance switch speed-adjustable motor, the service data that provides according to input equipment, through the computing of industry control microcomputer, the action of gauge tap magneto resistance speed-regulating motor, the action of magnetic resistance switch speed-adjustable motor drive pressure casting machine, it is characterized in that: the described service data that provides according to input equipment, through the computing of industry control microcomputer, comprise by the strain gauge on the die casting machine and detect ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆Data message, data message is passed to the industry control microcomputer, the industry control microcomputer determines to eject total travel straight-line displacement S ₃With total travel angular displacement A ₃, matched moulds total travel straight-line displacement S ₄With total travel angular displacement A ₄, lock pin total travel straight-line displacement S ₅, S ₆With total travel angular displacement A ₅, A ₆Described magnetic resistance switch speed-adjustable motor drive pressure casting machine action, during the work starting, starting is just being changeed in industry control microcomputer instruction two magnetic resistance switch speed-adjustable lock pin motors (5), (6), turns over total travel angular displacement A ₅, A ₆, magnetic resistance switch speed-adjustable matched moulds motor (4) is with angular velocity omega simultaneously ₄Turn over total travel angular displacement A ₄, matched moulds, the position keeps; The positive tarnsition velocity ω of magnetic resistance switch speed-adjustable injection motor (1) starting ₁, when the value of strain gauge (15) reaches injection pressure p ₁Value is injected into melt in the die cavity, less than dwell pressure p ₂Shi Weijin is when equaling dwell pressure p ₂, the dwell time picks up counting, and the start position keeps function; Dwell time reaches t ₁The time, pick up counting cool time; When reaching t cool time ₂The time, magnetic resistance switch speed-adjustable matched moulds motor (4) starting counter-rotating total travel angular displacement A ₄, die sinking; Two magnetic resistance switch speed-adjustable lock pin motors (5), (6) counter-rotating total travel angular displacement A ₅, A ₆, magnetic resistance switch speed-adjustable push-out motor (3) is with angular velocity omega simultaneously ₃Just changeing total travel angular displacement A ₃, ejecting product, initial position is got back in counter-rotating then, stops.

2, the numerical control method of die casting machine according to claim 1, it is characterized in that: described magnetic resistance switch speed-adjustable motor comprises motor and controller, motor mounting has angular displacement sensor, motor relies on the pulse power supply mode to work, controller instructs to Motor Control, angular displacement, angular velocity and the starting of control motor, stop, just changeing, counter-rotating, acceleration, deceleration, crawl and position keep.

3, the numerical control method of die casting machine according to claim 1 is characterized in that: the service data that described input equipment provides is included on the industry control microcomputer segmentation or not segmentation input and sets title material, product volume V, injection speed v ₁, dwell time t ₁, cool time t ₂, ejection cycle t ₃, matched moulds time t ₄, lock pin time t ₅, t ₆, mode transfer stroke s ₂, injection pressure p ₁, dwell pressure p ₂, ejecting force P ₃, mold clamping force P ₄, lock pin power P ₅, P ₆, die cavity counts the running parameter numerical value of m, and controller data information, button panel switching signal.

4, the numerical control method of die casting machine according to claim 1 is characterized in that: the computing of described industry control microcomputer, and according to formula $S_1=k\frac{4V}{{\mathrm{\&pi;D}}^2},$ $A=2\mathrm{\&pi;}\frac{S}{h},$ $\mathrm{\&alpha;}=2\mathrm{\&pi;}\frac{s}{h},$ $v=\frac{s}{t},$ $\mathrm{\&omega;}=2\mathrm{\&pi;}\frac{v}{h}=2\mathrm{\&pi;}\frac{s}{\mathrm{ht}},$ Calculate the angular displacement and the angular velocity of each magnetic resistance switch speed-adjustable motor, wherein α is angular displacement, and ω is an angular velocity, s is straight-line displacement, A is the total travel angular displacement, and S is the total travel straight-line displacement, and v is a space rate, h is the helical pitch of screw flight, V is a product volume, and D is for pressing the chamber diameter, and k is a correction factor, t is a run duration, S ₁Be the injection displacement.

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