CN1108991A - Computer controller of gantry cutting machines - Google Patents
Computer controller of gantry cutting machines Download PDFInfo
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- CN1108991A CN1108991A CN 94110506 CN94110506A CN1108991A CN 1108991 A CN1108991 A CN 1108991A CN 94110506 CN94110506 CN 94110506 CN 94110506 A CN94110506 A CN 94110506A CN 1108991 A CN1108991 A CN 1108991A
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Abstract
The microcomputerized controller for gantry cutting machine is composed of MC68HC705C8 single-chip microcomputer system as main control unit with special assembler language firmware, 3-D automatic control circuit for cutter moving and AC speed-regulating circuit. The said 3-D automatic control circuit includes 4 functional units of switch input, input reset, thickness input and output control. The said AC speed-regulating circuit includes 3 functional units of trigger cynchronization, rotating speed input and SCR control. It features low energy consumption, small size and high precision and reliability.
Description
The invention belongs to technical fields such as Digital Control of Machine Tool, Electric Traction, single-chip microcomputer application, particularly relate to a kind of controller of gantry cutting machines.
Gantry cutting machines is the process equipment that ratchel is cut into the sheet thin plate.At present, the control of the function of this equipment generally is to be realized respectively by separate multiple instrument, adopts traditional auxiliary reclay control circuit as cutting knife X, Y, Z, the control of three direction of motion; The AC speed regulating of horizontal direction adopts electromagnetic speed governing motor controller; The depth of cut of vertical direction is to control by the time that timing relay control motor starts; Length feed is controlled with step number, step pitch definite value instrument.Its major defect of the control device of this separate type is that wiring is many, and the contact is many, causes insecure factor many; The volume heaviness, the price height, power consumption is many; Multiple instrument control a machine tool, it is poor to cooperatively interact between the instrument, causes button many, complicated operation, inconvenient maintenance.
The object of the present invention is to provide a kind of marble gantry cutting machines nonshared control unit, substitute present separate type electrical control equipment, improve the reliability and the control accuracy of equipment, reach and reduce volume, economical with materials reduces the purpose of power consumption.
The present invention includes casing and panel.It is by the MC68HC705C8 microcontroller system circuit that is solidified with the assembly language special software, and cutting knife three directions are moved automatic control circuit, and AC speed regulating circuit three parts are formed.
Fig. 1 is a microcomputerized controller technical scheme block diagram of the present invention.
Fig. 2 is the MC68HC705C8 microcontroller system circuit.
Fig. 3 is cutting knife three a directions operation automatic control circuit.
Fig. 4 is the AC speed regulating circuit.
The present invention is described in detail below in conjunction with accompanying drawing:
According to shown in Figure 1, (1) is MC68HC705C8 microcontroller system circuit part among the figure.The single-chip microcomputer that is solidified with the assembly language special software is the main control computer of technical solution of the present invention.Other element circuit has keyboard, demonstration, storer, instrument with power supply etc.Keyboard and display circuit play people's one machine and get in touch effect, and storer is in order to deposit the various controlled variable that produce in meter constant and the AC speed regulating process.
Among the figure (2) be cutting knife three directions operations automatically control partly, its functional unit circuit has that switch input, input reset, the thick input of sheet, output control etc.Wherein switch input, input reset, the thick input interface circuit that is input as single-chip microcomputer of sheet, and output is controlled to be the output interface circuit of single-chip microcomputer.The combined action of these all element circuits of part for the running of automatic control multiple motors, stop with rotation direction, reach the purpose of rotation of control cutting knife and up, down, left, right, before and after motion.
(3) are the AC speed regulating part among the figure, and its element circuit has triggering synchronous, rotating speed input, SCR control etc.Wherein triggering synchronous, rotating speed are input as the input interface circuit of single-chip microcomputer, and SCR control is the output interface circuit of single-chip microcomputer.The combined action of each element circuit makes cutting knife adjustable in the movement velocity of left and right direction for the rotating speed of control buncher.Fig. 2 represents the annexation of keyboard, demonstration, storer and single-chip microcomputer in the Single Chip Microcomputer (SCM) system.Keyboard is connected in the C mouth of single-chip microcomputer, and 8 I/O mouth lines are formed 4 * 4 keyboards, and the practical structures of button is a thin film switch.Special-purpose show that outer converting interface chip MC14489 can directly drive 4 LED charactrons, it by 10,11,12, pin links to each other respectively at 5,32,33 pin of single-chip microcomputer, the display command that sends with serial mode reception microcomputer.Storer MCM2814 is 256 byte E
2PROM circuit, it and single-chip microcomputer also are to transmit information with serial mode, in order to the various operational factors that produce in the data of storage keyboard input and the AC speed regulating process.
According to shown in Figure 3, cutting knife three directions operation automatic control circuit is partly formed by four.(4) are the switch input interface circuit among the figure.Light emitting diode is gone here and there respectively and is connected to a end by 6 travel switches that are loaded on the motion of bed piece cutting knife behind the resistance in 6 photoelectrical couplers, and an end of each travel switch all is connected to the output terminal of direct supply.6 light emitting diode positive poles connect together, and by stabilivolt W ground connection.The collector of corresponding 6 phototriode G1～G6 with light emitting diode is connected to the PB of the B mouth of single-chip microcomputer
2～PB
7Be pin 14-19.The effect of this part circuit is six travel switch signals of up, down, left, right, before and after to be isolated by photoelectricity be input to respectively in the B mouth of single-chip microcomputer.
(5) are output control circuit among the figure, by two shift register 74HC595, and photoelectrical coupler, two Darlington driver MC1413 and ten miniature relays are formed.Single-chip microcomputer is by synchronous serial interface circuit connection therewith, and promptly 32 pin of single-chip microcomputer connect 11 pin of two shift registers; 33 pin connect 14 pin of 74HC595-2; 4 pin of single-chip microcomputer are 12 pin that control line connects two shift registers.Also be connected in series between two shift registers, promptly be connected to 14 ends of 74HC595-1 from 9 ends of 74HC595-2.Two shift registers have used ten output terminals altogether, and they are respectively 3,2,1,15,5,4 ends of 74HC595-1 and 4,3,2,1 end of 74HC5959-2.These ten output terminals drive a photoelectrical coupler respectively, and 4,5,6,7,2,3 input ends of Darlington driver MC1413-1 and 3,4,5,6 input ends of MC1413-2 are drawn and be connected to successively to the output of these ten photoelectrical couplers from the emitter of its phototriode respectively.Two MC1413 by and the corresponding output port of input drive ten tunnel little relay J
1-J
10
Below with " on " travel switch is example, the course of work of narration (4) and (5) two parts circuit.
When cutting knife moves up to the upper limit and touches upper stroke switch and make it closed, it is low level that this signal makes the 14th end of single-chip microcomputer by photoelectrical coupler, Microcomputer Detecting is to this low level, send to two byte instructions for shift register 74HC595 serial by serial sync cap and control end (i.e. 33,32 and 4 ends) at once, according to the control requirement, this order will stop the motor movement of vertical direction, start the working direction motor, close other motor except that main frame and water pump.Shift register 74HC595 becomes parallel signal to order, delivers to Darlington driver MC1413 by photoelectrical coupler, drives corresponding miniature relay, thereby further promotes outside A.C. contactor, and then the control motor.When cutting knife advancing a sheet thick after, the depth of cut that just descends begins the cutting of another sheet, at this moment " on " travel switch recovers off-state again.
Other five travel switch courses of work with " on " stroke opens and identical, unique different be after Microcomputer Detecting puts in place to them, the control command difference of sending to shift register.
(6) are the thick input circuit of sheet among the figure.The comparer that it is made up of operational amplifier, photoelectrical coupler, three element circuits of phase inverter are formed.Each element circuit is to connect like this, and 14 ends of comparer connect the input end of photoelectrical coupler G8, and the output terminal of G8 connects phase inverter F
2Input end, F
2Output terminal connect the PB1 end (i.e. 13 pin) of single-chip microcomputer B mouth.
The effect of circuit is to measure the distance that cutting knife vertically moves, its course of work is as follows: when cutting knife travels forward with respect to work piece, linear transducer is delivered to comparer to electric signal, and signal is finally delivered to the PB1 mouth (i.e. 13 pin) of single-chip microcomputer through shaping, photoelectricity isolation, phase inverter shaping.The quantity of the electric impulse signal that the detection that microcomputer does not stop transports and to calculate sheet thick.In case the thick set-point that reaches of sheet, computing machine sends two-byte instruction again, comprising the order of the motor that halts, so the moving process of a thick distance of sheet finishes.
Depth of cut is still controlled the duration of runs of descending motor vertically downward, but timing adopts the microcomputer in house software regularly, and its precision improves more than the several times than timing relay.
(7) are the input reset circuit among the figure.Form by monostable circuit three parts that phase inverter F4, photoelectrical coupler G7 and phase inverter F1 and F3 form.The initiating terminal of circuit is taken from the positive pole of stabilivolt W, and link the input end of phase inverter F4, the output terminal of F4 is linked the input end of photoelectrical coupler G7, the output terminal of G7 is linked the input end of phase inverter F3 in monostable circuit, the output terminal of monostable circuit is the output terminal of phase inverter F1, is connected to the REST end (i.e. 12 pin) of single-chip microcomputer.
The effect of circuit is: when any is closed among 6 travel switches, all will makes phase inverter F4 that low level output is arranged, thereby make photoelectrical coupler G7 trigger monostable circuit, and produce the reset signal of single-chip microcomputer, thereby strengthened the reliability of instrument work.
According to shown in Figure 4, the AC speed regulating circuit can be divided into two parts.(8) are the SCR control output circuit among the figure, partly are made up of phase inverter F5, photoelectrical coupler G3, rp-drive F6, pulse transformer, controllable silicon etc.The each several part annexation is as follows: the 35th end of single-chip microcomputer is connected to the input end of phase inverter F5, the F5 output terminal connects the input end of photoelectrical coupler G3, the G3 output terminal is connected to the input end of rp-drive F6, the output terminal of F6 is connected with the elementary of pulse transformer, the secondary connection silicon controlled control utmost point and the negative electrode of pulse transformer.
(9) are triggering synchronous and rotating speed input circuit among the figure.Can be divided into element circuit parts such as operational amplifier, photoelectrical coupler, phase inverter.Each unit connection relation is as follows:
The output terminal 8 of operational amplifier connects photoelectrical coupler G1, and the output terminal of G1 connects the input end of phase inverter F7, and the F7 output terminal is connected to the TRQ end (i.e. 2 pin) of single-chip microcomputer.Synchronizing signal is taken from the secondary of power transformer, and this signal is delivered to 9,10 two ends of operational amplifier, through operational amplifier shaping, photoelectric coupler isolation, delivers to the input end of phase inverter F7, and signal arrives the TRQ end of single-chip microcomputer more at last through the F7 shaping.
7 ends of operational amplifier connect the input end of photoelectrical coupler G2, and the output terminal of G2 connects the input end of phase inverter F8, and the output terminal of F8 is connected to 37 pin of single-chip microcomputer.Speed feedback signal is taken from the output terminal with the coaxial AC tachometer generator of buncher, this signal is delivered to 5,6 ends of operational amplifier, and signal is through operational amplifier shaping, photoelectric coupler isolation, through phase inverter F8 shaping, deliver to the TCAP end of single-chip microcomputer at last again.
The effect of AC speed regulating circuit is to make the left and right mobile adjustable-speed of cutting knife.The course of work of circuit is as follows: the people is by the rated speed of the given motor of keyboard, and single-chip microcomputer is received startup command just by 35 pin output trigger pulse, makes the controllable silicon conducting, the buncher running.Synchronizing circuit determines that single-chip microcomputer sends the zero-time of trigger pulse; If the actual speed actual speed and the requirement of speed feedback circuit notice single-chip microcomputer buncher are not inconsistent, single-chip microcomputer is controlled the time of controllable silicon conducting by the time that the levelling trigger pulse produces, and then reaches the purpose of levelling motor speed.
The present invention compared with prior art has obvious superiority, and the former control mode of the energy loss-rate of microcomputerized controller itself reduces more than ten times; The former control section of the volume ratio of controller dwindles more than ten times, but considers the convenience that the people operates, and still needs a console, and this is so that actual volume only dwindles 2 times; Because former controller all is that auxiliary reclay (contact is many, and wiring is many) now adopts single chip microcomputer technology, reliability, control accuracy improve more than the several times than former technology; Be controlled to be the control of separate unit instrument owing to become many separate types, so that behaviour is convenient, intuitive display.
Claims (9)
1, a kind of computer controller of gantry cutting machines, it is characterized in that it is is master controller with the MC68HC705C8 single-chip microcomputer that is solidified with the assembly language special software, by this microcontroller system circuit (1), cutting knife three directions operation automatic control circuit (2) and AC speed regulating circuit (3) three parts constitute, and connect by the I/O mouth of single-chip microcomputer.
2, controller according to claim 1, it is characterized in that said cutting knife three directions operation automatic control circuit (2), its functional unit circuit has switch input circuit (4), input reset circuit (7), the thick input circuit of sheet (6) and output control circuit (5) four parts constitute, wherein switch input circuit (4) input reset circuit (7) and the thick input circuit of sheet (6) are the single-chip microcomputer input interface circuit, and output control circuit (5) is the output interface circuit of single-chip microcomputer.
3, controller according to claim 2, it is characterized in that said switch input circuit (4), its structure is after six light emitting diodes in the photoelectrical coupler respectively are connected in series a resistance, join with six travel switches installing on the lathe cutting knife direction of motion respectively, the negative pole of six light emitting diodes is associated in together, collector by stabilivolt W ground connection and corresponding six the phototriode G1-G6 of light emitting diode meets single-chip microcomputer B mouth PB respectively
2-PB
7
4, controller according to claim 2 is characterized in that said output control circuit (5), and its structure is: two shift registers are with the 9 end series connection of 14 ends and the 74HC595-2 of 74HC595-1.
32 pin of their 11 termination single-chip microcomputers, 4 pin of 12 termination single-chip microcomputers, 33 pin of the 14 termination single-chip microcomputers of 74HC595-2,3,2,1,15,5,4 ends of 74HC595-1,4,3,2,1 end of 74HC595-2 drive a photoelectrical coupler respectively, and input end 3,4,5,6 output ports corresponding with this input end that the emitter of the phototriode in ten photoelectrical couplers connects the input end 4,5,6,7,2,3 of Darlington driver MC1413-1 and MC1413 successively connect ten tunnel little relay J of control A.C. contactor respectively
1-J
10
5, controller according to claim 2 is characterized in that said thick input circuit (6), and its structure is: the input end of 14 termination photoelectrical coupler G8 of comparer, the output terminal of G8 connects phase inverter F
2Input end, F
2Output terminal connect the PB1 end of single-chip microcomputer B mouth, the input end external sensor of said comparer.
6, controller according to claim 2 is characterized in that said input reset circuit (7), and its structure is: phase inverter F
4The input end of output termination photoelectrical coupler G7, G
7Output terminal connects phase inverter F in the monostable circuit
3Input end, the output terminal of monostable circuit i.e. phase inverter F wherein
1Output terminal, this is connected to REST end (i.e. 12 pin) of single-chip microcomputer.Stabilivolt W negative pole in the initiating terminal of this circuit and the switch input circuit (4) joins.
7, controller according to claim 1, it is characterized in that said AC speed regulating circuit (3), its element circuit has triggering synchronous, rotating speed input circuit (9) and SCR control circuit (8), wherein triggering synchronous, rotating speed are input as the input interface circuit of single-chip microcomputer, and SCR control is the single-chip microcomputer output interface circuit.
8, controller according to claim 7, it is characterized in that said SCR control circuit (8), its structure is: the input end of phase inverter F5 is connected to the 35th end of single-chip microcomputer, the output terminal of F5 connects the input end of photoelectrical coupler G3, the output terminal of G3 connects the input end of rp-drive F6, the output terminal of F6 is connected in series with the elementary of pulse transformer, the secondary silicon controlled control utmost point and the negative electrode of connecing of pulse transformer.
9, according to the said controller of claim 7, it is characterized in that said triggering synchronous, rotating speed input circuit (9), it is calculated amplifier, two photoelectrical couplers and two phase inverters by two transhipments and forms, structure is: the output terminal of an operational amplifier connects photoelectrical coupler G1, the output terminal of G1 connects the input end of phase inverter F7, the output terminal of F7 connects the TRQ end (the 2nd pin) of single-chip microcomputer, and synchronizing signal is taken from the secondary of power transformer; 7 ends of another operational amplifier connect the input end of photoelectrical coupler G2, the output terminal of G2 connects the input end of phase inverter F8, the output terminal of F8 connects the TCAP end (the 37th pin) of single-chip microcomputer, and speed feedback signal is taken from the output terminal with the coaxial AC tachometer generator of buncher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110506A CN1066091C (en) | 1994-03-24 | 1994-03-24 | Computer controller of gantry cutting machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110506A CN1066091C (en) | 1994-03-24 | 1994-03-24 | Computer controller of gantry cutting machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1108991A true CN1108991A (en) | 1995-09-27 |
| CN1066091C CN1066091C (en) | 2001-05-23 |
Family
ID=5034465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94110506A Expired - Fee Related CN1066091C (en) | 1994-03-24 | 1994-03-24 | Computer controller of gantry cutting machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1066091C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576662A (en) * | 2013-11-21 | 2014-02-12 | 柳州职业技术学院 | Machine tool circuit controller based on single chip microcomputer |
| CN106707970A (en) * | 2015-07-24 | 2017-05-24 | 上海滨捷机电有限公司 | Numerical control machine tool electric integrated controller |
| CN107900439A (en) * | 2017-11-30 | 2018-04-13 | 余健亭 | A kind of construction(al)steel tube cutting machine |
| CN108994626A (en) * | 2017-06-06 | 2018-12-14 | 上海滨捷机电有限公司 | Numerically-controlled machine tool electric control cabinet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920005252B1 (en) * | 1988-11-11 | 1992-06-29 | 미쯔 비시덴끼 가부시끼가이샤 | Numerical controller |
| CN2074706U (en) * | 1990-09-12 | 1991-04-10 | 中国长江动力公司(集团)武汉汽轮发电机厂 | Two direction marble cutter |
-
1994
- 1994-03-24 CN CN94110506A patent/CN1066091C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576662A (en) * | 2013-11-21 | 2014-02-12 | 柳州职业技术学院 | Machine tool circuit controller based on single chip microcomputer |
| CN106707970A (en) * | 2015-07-24 | 2017-05-24 | 上海滨捷机电有限公司 | Numerical control machine tool electric integrated controller |
| CN108994626A (en) * | 2017-06-06 | 2018-12-14 | 上海滨捷机电有限公司 | Numerically-controlled machine tool electric control cabinet |
| CN107900439A (en) * | 2017-11-30 | 2018-04-13 | 余健亭 | A kind of construction(al)steel tube cutting machine |
| CN107900439B (en) * | 2017-11-30 | 2019-07-19 | 刘红军 | A kind of construction(al)steel tube cutting machine |
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| Publication number | Publication date |
|---|---|
| CN1066091C (en) | 2001-05-23 |
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