CN201371297Y - Wire cylinder control device for wire-cut electrical discharge machine - Google Patents
Wire cylinder control device for wire-cut electrical discharge machine Download PDFInfo
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- CN201371297Y CN201371297Y CN200920105271U CN200920105271U CN201371297Y CN 201371297 Y CN201371297 Y CN 201371297Y CN 200920105271 U CN200920105271 U CN 200920105271U CN 200920105271 U CN200920105271 U CN 200920105271U CN 201371297 Y CN201371297 Y CN 201371297Y
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Abstract
The utility model relates to a wire cylinder control device for a wire-cut electrical discharge machine, which comprises a converter, a converter control part, a converter operation reversing part and a wire cylinder motor direct current energy consumption brake part, wherein a wire cylinder is connected to a three-phase alternating current power supply via the converter, the converter control part comprises a manual control box and an converter control panel which is connected between the converter and the manual control box, a COM2 port of the control panel is connected with a communication terminal of the converter, a wire moving button which is connected to the converter control panel is arranged on the manual control box, the converter operation reversing part comprises a wire cylinder motor control panel, a wire cylinder left travel limit switch and a wire cylinder right travel limit switch, a reversing signal is input into the converter through the wire cylinder motor control panel for controlling the forward and reverse rotation and the reversing of a wire cylinder or judging the stop position of the wire cylinder after a block of the wire cylinder motor collides with the wire cylinder left travel limit switch or the wire cylinder right travel switch, the brake part is connected with the wire cylinder motor, the output of the converter is cut off when in power failure of the machine tool, and direct current power is combined between two phases of the motor for carrying out direct current energy consumption brake.
Description
Technical field
The utility model is meant the silk tube control device that a kind of electric spark linear cutting machine is used especially relevant for a kind of electric spark linear cutting machine.
Background technology
Traditional to-and-fro thread feed electric spark wire-electrode cutting machine adopts single speed or double speed AC induction motor to utilize controllable silicon or the rotating of A.C. contactor control wire storage cylinder more, its control rate is single, can only finish single cut and can not satisfy the requirement that to-and-fro thread feed electric spark wire-electrode cutting machine is repeatedly repaiied the function of cutting, and the fault rate of the commutating circuit of wire cutting machine tool and braking circuit is higher.
The fortune silk system of fast wire itself can realize that molybdenum filament back and forth uses, macro-energy adds transports silk man-hour at a high speed, can bring machining medium into joint-cutting easily, and prevent that concentration of energy from causing fracture of wire, but the cutting efficiency of quick-wire-moving linear cutting machine, dimensional accuracy and fineness are all not really desirable.Most wire cutting machine tool is manually to go up silk, has increased working strength of workers like this, has influenced efficiency.
In view of this, the design artificially solves the problem that above-mentioned known technology exists, and well-designedly finally after exploitation improvement repeatedly goes out the silk tube control device that electric spark linear cutting machine of the present utility model is used.
Summary of the invention
The technical problems to be solved in the utility model is: the silk tube control device that provides a kind of electric spark linear cutting machine to use, it has realized the adjustable function of wire travelling speed, thereby has made condition for repeatedly repairing incised wound.
Technical solution of the present utility model is: the silk tube control device that a kind of electric spark linear cutting machine is used; This tube control device comprises: frequency converter, and the wire cylinder motor of spark cutting machine is connected to three-phase alternating-current supply through this frequency converter, and frequency converter rotating startup stops control end employing multi-function input terminal; The Frequency Converter Control part, described Frequency Converter Control partly comprises manual control box, is connected in Frequency Converter Control plate and transducer control circuit between frequency converter and this manual control box, the COM2 port of Frequency Converter Control plate (industrial computer) is connected with the communication terminal of frequency converter, and described manual control box is provided with the fortune silk button that is connected to the Frequency Converter Control plate; Frequency converter operation commutation part, comprise wire cylinder motor control panel, silk tube left lateral way limit switch and silk tube right lateral way limit switch, this wire cylinder motor control panel is just changeing input, counter-rotating input, common port and silk tube left lateral way limit switch with frequency converter respectively, silk tube right lateral way limit switch links to each other, after the collision block of wire cylinder motor is run into a silk left lateral journey switch or silk tube right lateral journey switch, commutation signal will be controlled the commutation of wire cylinder motor rotating and silk tube or be used to judge a stop position of tube by this wire cylinder motor control panel input converter; And wire cylinder motor direct current energy consumption brake portion, this wire cylinder motor direct current energy consumption brake portion is connected with wire cylinder motor, and in lathe when outage, cut off the output of frequency converter, and direct current is incorporated between the two-phase of this motor and carried out the direct current energy consumption braking.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, described frequency converter operation commutation part comprises silk tube rotating relay, the normally-closed contact of this tube rotating relay is connected in just to be changeed between input and common port, its normally opened contact is connected between counter-rotating input and the common port, silk tube left lateral journey switch, silk tube right lateral journey switch are controlled the break-make of each contact of this tube rotating relay, change the wire cylinder motor rotation direction.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, described wire cylinder motor direct current energy consumption brake portion comprises power supply, rectification unit, holds stream unit and control module, described power supply charges to the described stream unit that holds after this rectification unit rectification, described control module is controlled the break-make of this wire cylinder motor direct current energy consumption brake portion and wire cylinder motor, after the lathe outage suddenly, control module makes frequency converter interrupt output, and will hold the stream unit and incorporate between the motor two-phase.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, described rectification unit is the bridge heap, described hold stream the unit be electric capacity, described control module comprises the direct current energy consumption braking contactor, its main contact is connected on the major loop between frequency converter and the wire cylinder motor, the power supply that the direct current energy consumption brake control section is divided is connected to described bridge heap by the auxiliary contact of often opening of this direct current energy consumption braking contactor, and the normally closed auxiliary contact of storage capacitor by this direct current energy consumption braking contactor is connected between the two-phase of described wire cylinder motor.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, another normally closed auxiliary contact of described direct current energy consumption braking contactor is connected in the base stage of frequency converter and blocks between input terminal and the common port.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, the control circuit of described Frequency Converter Control part comprises frequency converter start-up control unit, described frequency converter start-up control unit comprises the lathe gauge tap KA2 that cuts off the power supply automatically, lathe cut-off switch SA2, lathe upper electrical switch SA1, electric contactor KM1 on first, electric contactor KM2 on second, wherein, the lathe that is connected to the three-phase alternating-current supply phase line cut off the power supply automatically the gauge tap KA2 other end and lathe cut-off switch SA2, lathe upper electrical switch SA1 series connection, be connected between lathe upper electrical switch SA1 and zero line behind the coils from parallel connection of coils of electric contactor KM2 on the electric contactor KM1 and second on described first, and the auxiliary normally opened contact of electric contactor is in parallel with lathe upper electrical switch SA1 on described first; Two of electric contactor auxiliary normally opened contacts are serially connected with the two ends of direct current energy consumption braking contactor KM10 coil on described first, by electric contactor control direct current energy consumption braking contactor on first.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, described control circuit comprises that fracture of wire detects control module, described fracture of wire detects sense switch SQ4, SQ15, SQ16 and the fracture of wire control relay KA12 that control module comprises three parallel connections, wherein, this organizes sense switch one termination control power line in parallel, ground connection after the other end is connected with the coil of fracture of wire control relay KA12.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, described control circuit comprises the silk control module, the described silk control module of going up comprises a silk start button SB1, goes up a silk stop button SB2 and the motor-driven silk control relay KA11 that goes up of lathe, the normally-closed contact of the fracture of wire control relay KA12 that is connected with the control power supply, go up a silk start button SB1, go up that silk stop button SB2 and lathe are motor-driven and go up the coil of control relay KA11 and connect successively after ground connection.
The silk tube control device that aforesaid electric spark linear cutting machine is used, wherein, described control circuit comprises automatic fortune silk control module, described automatic fortune silk control module comprises fortune wire connection tentaculum KM4, silk tube protection contactor KM5, microswitch SQ3, lathe is transported a gauge tap KA3 and lathe automatically and is manually gone up first pin that silk control relay KA11 is connected to microswitch SQ3 after in parallel, silk tube protection contactor KM5 connects by microswitch SQ3 self-locking, the normally-closed contact of this microswitch SQ3 and the normally-closed contact of tube protection contactor KM5, the coil series connection back connecting to neutral line of the normally opened contact of electric contactor KM2 and fortune wire connection tentaculum KM4 on second, another normally opened contact of electric contactor KM2 is serially connected with between the coil and normally opened contact of silk tube protection contactor KM5 on second; The normally opened contact of this fortune wire connection tentaculum KM4 is connected in the common port of this frequency converter and is just changeing between input, the counter-rotating input break-make of just changeing input or counter-rotating input and common port with control.
Characteristics of the present utility model and advantage are as follows:
1: can realize the semi-automatic silk of going up, last silk adjustable-speed has alleviated operator's labour intensity.
2: fortune silk adjustable-speed, and can adjust in real time.As adjusting by adjusting parameter in the processing, can adjust a silk speed and a fortune speed by the configuration lathe parameter at manual picture.
3: there is direct current energy consumption braking control frequency converter inside, makes frequency converter start and stop response accurately; The utility model also has the peripheral direct current energy consumption braking circuit of forcing, and after the unexpected dead electricity of assurance lathe, can brake wire cylinder motor rapidly, prevents that the silk tube left and right sides excess of stroke from causing fracture of wire.
4: the position that controlled throwing tube operation stops, by configuration parameter, make the silk tube rest in the left side, the right or current location, make things convenient for porous processing to wear silk and use.
Description of drawings
Fig. 1 is the circuit diagram of first specific embodiment of the present utility model.
Fig. 2 is the circuit diagram of second specific embodiment of the present utility model.
The drawing reference numeral explanation:
(1) Frequency Converter Control part
Hand box: manual control box is transported the operation of silk button control wire cylinder motor and is stopped
COM2: industrial computer serial communication interface and inverter communication KA2: the lathe gauge tap that cuts off the power supply automatically
KA3: lathe is transported a gauge tap KA11 automatically: the motor-driven silk control relay of going up of lathe
KA12: fracture of wire control relay SQ3: microswitch
KM1: electric contactor KM2 on first: electric contactor on second
SA1: lathe upper electrical switch SA2: lathe cut-off switch
KM4: fortune wire connection tentaculum KM5: silk tube protection contactor
SB1: the motor-driven silk start button SB2 that goes up: the motor-driven silk stop button of going up
SQ4: fracture of wire sense switch SQ15: fracture of wire sense switch
SQ16: fracture of wire sense switch
(2): frequency converter operation commutation part
SQ1: silk tube left lateral way limit switch S Q2: silk tube right lateral way limit switch
KA: silk tube rotating relay S1: frequency converter is just changeing input
S2: frequency converter counter-rotating input S3 frequency converter base stage is blocked input
SC: frequency converter common port SC1: fortune wire connection tentaculum KM4 auxiliary contact end
24L+:24V positive voltage terminal 24L-:24V negative voltage side
(3) wire cylinder motor direct current energy consumption brake portion
KM10: wire cylinder motor direct current energy consumption braking contactor FU1: fuse
R4: current-limiting resistance Q1: bridge heap
C5: hold stream electric capacity
The specific embodiment
Following conjunction with figs. and specific embodiment are described in further detail the specific embodiment of the present utility model.
As shown in Figure 2, a specific embodiment of the silk tube control device that it is used for electric spark linear cutting machine of the present utility model, wherein, this tube control device comprises:
Frequency converter FC1, the wire cylinder motor M of spark cutting machine is connected to three-phase alternating-current supply through this frequency converter FC1, and the communication terminal of this frequency converter is communicated by letter with industrial computer;
Frequency converter operation commutation part, comprise wire cylinder motor control panel IMC-B02A, silk tube left lateral way limit switch S Q1 and silk tube right lateral way limit switch S Q2, this wire cylinder motor control panel is just changeing input S1 with frequency converter respectively, counter-rotating input S2, common port SC and silk tube left lateral way limit switch S Q1, silk tube right lateral way limit switch S Q2 links to each other, after the collision block of wire cylinder motor M is met silk tube left lateral journey switch S Q1 or silk tube right lateral journey switch S Q2, commutation signal will be controlled the commutation of the rotating of wire cylinder motor M and silk tube (not shown) or be used to judge the stop position of silk tube by this wire cylinder motor control panel input converter; And
Wire cylinder motor direct current energy consumption brake portion, this wire cylinder motor direct current energy consumption brake portion is connected with wire cylinder motor M, and in lathe when outage, cut off the output of frequency converter FC1, and direct current is incorporated between the two-phase of this wire cylinder motor M and carried out the direct current energy consumption braking.
Wire cylinder motor direct current energy consumption brake portion comprises power supply, rectification unit, holds stream unit and control module, described power supply charges to the described stream unit that holds after this rectification unit rectification, described control module is controlled the break-make of this wire cylinder motor direct current energy consumption brake portion and wire cylinder motor, after the lathe outage suddenly, control module makes frequency converter interrupt output, and will hold the stream unit and incorporate between the motor two-phase.
As shown in Figure 1, in the present embodiment, rectification unit is bridge heap Q1, hold the stream unit for holding stream capacitor C 5, control module comprises direct current energy consumption braking contactor KM10, the main contact of this direct current energy consumption braking contactor KM10 is connected on the major loop between frequency converter and the wire cylinder motor, the power supply that the direct current energy consumption brake control section is divided is connected to bridge heap Q1 by the auxiliary contact of often opening of this direct current energy consumption braking contactor KM10, and is connected between the two-phase (as U, V) of wire cylinder motor M and hold the normally closed auxiliary contact of stream capacitor C 5 by this direct current energy consumption braking contactor KM10; In addition, another normally closed auxiliary contact of direct current energy consumption braking contactor KM10 base stage of being connected in frequency converter 1 is blocked between the common port SC of input terminal S3 and wire cylinder motor control panel.
Do minimum the change in order to make lathe hardware, the utility model selects for use multi-function input terminal (comprise just transferring into terminal S1, counter-rotating input terminal S2, base stage and block terminal S3 and common port SC) to stop control end as frequency converter rotating startup, COM2 on the industrial computer (being made into RS422) communicates by letter with the frequency converter communication terminal, the usefulness that working frequency is set and the frequency converter state reads is with the output frequency of control frequency converter FC1 and the state of monitoring frequency converter FC1.
In the present embodiment, multi-function input terminal S1 is just transporting and go/is stopping, and the S2 counter-rotating moves/stops, and the S3 base stage is blocked (output of blocking frequency converter).The operation of wire cylinder motor M is by frequency converter FC1, wire cylinder motor control panel (being specially IMC-B02A), controls such as fortune wire connection tentaculum KM4, direct current energy consumption braking contactor KM10.After the electricity cabinet started, CNC machine tools software entered manual interface, and industrial computer sends instructions, the frequency setting of frequency converter FC1 is last silk frequency values, behind manual control box fortune silk button, frequency converter frequency is set at fortune silk frequency values, and the frequency converter frequency value of discharge processing can be set by machined parameters.Fortune wire connection tentaculum KM4 adhesive, motor rotation, after the silk tube ran to commutation position, commutation signal entered silk tube control panel, and this tube control panel outputs signal to multi-function input terminal S1 or S2, with the commutation of control silk tube.When the silk tube was out of service, fortune wire connection tentaculum KM4 disconnected, thereby entered multi-function input terminal S1 or the disconnection of S2 signal, the frequency converter output frequency is done the output of slowing down, when frequency is reduced to minimum output frequency, the braking of frequency converter FC1 output direct current energy consumption, braking time and electric current can be set by parameter.Fortune silk or discharge process finishing or in the industrial computer of having no progeny be last silk frequency values from the new settings frequency converter frequency, last a silk frequency values and a fortune frequency values all can dispose in software.When electric cabinet cuts off the power supply suddenly, frequency converter loses the control to wire cylinder motor, and direct current energy consumption braking contact KM10 disconnects, and holds 5 couples of wire cylinder motor M of stream capacitor C and does the direct current energy consumption braking, makes motor stop fast causing fracture of wire to prevent that the silk tube from going out stroke.
The operating instruction of frequency converter FC1 may be selected to be: operator, control loop terminal, communication etc., present embodiment is selected the control loop terminal.The frequency of frequency converter is specified and be may be selected to be: operator knob, frequency parameter, control loop, communication etc., present embodiment select to use the MEMOBUS communication modes.Frequency converter has different fault diagnosis and tupe, makes the start and stop of motor stable, can in time handle as extreme situation, and guarantee the motor safety operation effectively.Frequency converter internal state register can read by communication, and a start and stop position of tube is accomplished can be controlled.
By reading the status register in the frequency converter; the utility model has increased the module of control silk tube stop position newly; by the stop position parameter of configuration software, can select a left side to stop, stop on the right side or stop immediately, this function makes multi-hole position processing wear silk repeatedly and becomes simple and efficient.In CNC machine tools software, can set the stop position of silk tube: L, R, N, wherein, L: when the silk tube runs to Far Left, stop; R: when the silk tube runs to rightmost, stop; N: the silk tube can be stopped arbitrarily; And the silk tube can be accommodated to desired location when following situation: during manual control box fortune silk; During progressive die.
The cutting efficiency of the quick-wire-moving linear cutting machine of prior art, dimensional accuracy and fineness are all not really desirable, with reference to the repeatedly cutting of the silk cutting machine tool of being careful, also can comprise in the filament processing process of hurrying up once leading to cut and cut with two to three energy, biasing, fast the repairing of successively decreasing step by step of silk.The fortune silk system of fast wire itself can realize that molybdenum filament back and forth uses, and macro-energy adds transports silk man-hour at a high speed, can bring machining medium into joint-cutting easily, and prevent that concentration of energy from causing fracture of wire; Because the molybdenum filament of high-speed cruising is easy to generate shake, be unsuitable for repairing and cut, therefore repair employing low cruise reduction silk speed when cutting, the swing of stabilization filament, and then accurately control to repair and cut size.Repeatedly the repairing of frequency control of the present utility model cut the economical and practical and good stability of being careful of fast wire, efficient height, precision is good, fineness the is excellent characteristics taken into account.Most wire cutting machine tool is manually to go up silk, has increased working strength of workers like this, has influenced efficiency, after the speed governing of wire cylinder motor variable ratio frequency changer, but silk in the low-speed maneuver is transported silk at a high speed, and the labour intensity that has reduced the operator has like this improved the safe class of product.
As shown in Figure 2, it is another specific embodiment of the present utility model, the composition that roughly has last embodiment of present embodiment, in addition, the silk tube control device of present embodiment also comprises the Frequency Converter Control part, Frequency Converter Control partly comprises manual control box, is connected in Frequency Converter Control plate and corresponding transducer control circuit between frequency converter and this manual control box, the COM2 port of Frequency Converter Control plate is connected with the communication terminal of frequency converter, and manual control box is provided with the fortune silk button that is connected to the Frequency Converter Control plate.
As shown in Figure 2, transducer control circuit comprises frequency converter start-up control unit, frequency converter start-up control unit comprises the automatic breakpoint gauge tap of lathe KA2, lathe cut-off switch SA2, lathe upper electrical switch SA1, electric contactor KM1 on first, electric contactor KM2 on second, wherein, be connected to the automatic breakpoint gauge tap of the lathe KA2 other end and the lathe cut-off switch SA2 of phase line, lathe upper electrical switch SA1 series connection, be connected between lathe upper electrical switch SA1 and zero line behind the coils from parallel connection of coils of electric contactor KA2 on the electric contactor KA1 and second on first, and the auxiliary normally opened contact of electric contactor is in parallel with lathe upper electrical switch SA1 on first; Two of electric contactor auxiliary normally opened contacts are serially connected with the two ends of direct current energy consumption braking contactor KM10 coil on first, to control the on off operating mode of this direct current energy consumption braking contactor KM10 by electric contactor on first.
Transducer control circuit comprises that also fracture of wire detects control module, fracture of wire detects sense switch SQ4, SQ15, SQ16 and the fracture of wire control relay KA12 that control module comprises three parallel connections, wherein, this organizes sense switch one termination 12V control power line in parallel, ground connection after the other end is connected with the coil of fracture of wire control relay KA12.
Transducer control circuit also comprises automatic fortune silk control module, automatically a fortune silk control module comprises that lathe transports a gauge tap KA3 automatically, fortune wire connection tentaculum KM4, silk tube protection contactor KM5, microswitch SQ3, after transporting a gauge tap KA3 automatically and the motor-driven upward silk of lathe control relay KA11 is in parallel, lathe is connected to first pin of microswitch SQ3, silk tube protection contactor KM5 connects by microswitch SQ3 self-locking, the normally-closed contact of this microswitch SQ3 and the normally-closed contact of tube protection contactor KM5, the coil series connection back connecting to neutral line of the normally opened contact of electric contactor KM2 and fortune wire connection tentaculum KM4 on second, another normally opened contact of electric contactor KM2 is serially connected with between the coil and normally opened contact of silk tube protection contactor KM5 on second; The normally opened contact of this fortune wire connection tentaculum KM4 is connected in the common port of this frequency converter and is just changeing between input, the counter-rotating input break-make of just changeing input or counter-rotating input and common port with control.
In addition, transducer control circuit also comprises the motor-driven silk control module of going up, this motor-driven silk control module of going up comprises a silk start button SB1, goes up a silk stop button SB2 and the motor-driven silk control relay KA11 that goes up of lathe, the normally-closed contact of the fracture of wire control relay KA12 that is connected with the control power supply, go up a silk start button SB1, go up that silk stop button SB2 and lathe are motor-driven and go up the coil of control relay KA11 and connect successively after ground connection.Wherein, what manual control box was transported the silk button control is fortune silk speed, and its speed software is configurable; Last silk start and stop button control be to go up silk speed, its speed is also configurable.By two configurable two kinds of speed of parameter.If not by last silk start button SB1 the motor-driven silk control relay KA11 that goes up of lathe disconnect.It is relation in parallel that the motor-driven lathe of going up silk control relay KA11 and the button control of manual control box fortune silk of lathe is transported a gauge tap KA3 automatically, may shut simultaneously, and this moment, industrial computer was sent out the frequency speed command with fortune silk parameter.Frequency converter default frequency instruction is for last silk parameter, and when the manual control box button was pressed, industrial computer was by communication shipping silk parameter, and after the manual control box button opened, industrial computer was sent out a parameter by communication.
In sum, in the utility model, this fortune silk system comprises four parts: Frequency Converter Control part, frequency converter operation commutation part, wire cylinder motor direct current energy consumption brake portion, frequency converter and phase asynchronous alternating current generator.More than four parts can realize wire cylinder motor operation, stop, the speed regulating control of commutation, the speed of service, the control of a silk tube stop position, fracture of wire detect, the silk tube spacingly excessively stops, lathe outage back is to the braking of wire cylinder motor direct current energy consumption etc.Realize being described in detail below in conjunction with the exercises of composition of the present utility model to the silk tube:
At first, press lathe start button, electric contactor KM1, KM2 adhesive on first, second, each electric component of lathe powers on.
1, the startup of silk tube: the silk tube starts can divide three kinds of situations: the silk tube in the processing starts automatically; By manual control box fortune silk button; Press the start button of going up on the lathe, specific as follows:
Automatically add man-hour, when needing to start the silk tube, the lathe on the Frequency Converter Control plate transports a K switch A3 automatically and cuts out; when microswitch SQ3 is not touched; a silk tube protection contactor KM5 is a normally closed switch, electric contactor KM2 closure on second, and fortune wire connection tentaculum KM4 is subjected to electric adhesive.The auxiliary normally opened contact KM4 closure of fortune wire connection tentaculum is just being transferred into terminal S1 and common port SC UNICOM frequency converter, and frequency converter just changes with assigned frequency control wire cylinder motor.
In manual interface; CNC machine tools software reads the state of manual control box; when pressing as a manual control box fortune silk button, industrial computer will be controlled lathe and transport a gauge tap KA3 automatically and close, when microswitch SQ3 is not touched; silk tube protection contactor KM5 is a normally closed switch; electric contactor KM2 closure on second, fortune wire connection tentaculum KM4 is subjected to electric adhesive, its auxiliary normally opened contact closure; frequency converter is just transferring into terminal S1 and common port SC UNICOM, and frequency converter just changes with assigned frequency control wire cylinder motor.
Press silk start button SB1 on the lathe, as do not detect fracture of wire, KA12 is normally closed for the fracture of wire control relay, the motor-driven upward silk of a lathe control relay KA11 adhesive, and KA11 and KA3 are in parallel, any one closure all can make the silk tube move.
2, the commutation of silk tube: move as silk tube forward, silk tube with collision block will meet left lateral degree bit switch SQ1, make silk tube rotating relay K A adhesive, frequency converter is just transferring into terminal S1 and common port SC and is turn-offing, counter-rotating input terminal S2 and common port SC UNICOM, the counter-rotating of Frequency Converter Control wire cylinder motor.As silk tube inverted running, silk tube with collision block will meet right lateral degree bit switch SQ2, a silk tube rotating relay K A is disconnected, frequency converter is just transferring into terminal S2 and common port SC and is turn-offing, counter-rotating input terminal S1 and common port SC UNICOM, the Frequency Converter Control wire cylinder motor just changes.
3, stopping of silk tube: the silk tube stops to divide three kinds of situations: the silk tube in the processing stops automatically; By manual control box fortune silk button; Press the stop button of going up on the lathe.Specific as follows:
When needing to stop the silk tube in the processing automatically; lathe on the Frequency Converter Control plate is transported a gauge tap KA3 automatically and is opened; when microswitch SQ3 is not touched; silk tube protection contactor KM5 is a normally closed switch; electric contactor KM2 closure on second; fortune wire connection tentaculum KM4 outage is opened; its auxiliary normally opened contact KM4 opens; frequency converter is just being transferred into terminal S1 or sub-S2 of reverse input end and common port SC disconnection; frequency converter slows down with setpoint frequency rate of regression control wire cylinder motor; when frequency is reduced to minimum output frequency, frequency converter output direct current energy consumption braking (braking time and electric current can be set by parameter).
In manual interface; CNC reads the state of manual control box; press as a manual control box fortune silk button when transporting thread attitude; lathe on the control panel is transported a gauge tap KA3 automatically and is opened; when microswitch SQ3 is not touched; silk tube protection contactor KM5 is a normally closed switch; electric contactor KM2 closure on second; fortune wire connection tentaculum KM4 outage is opened; its auxiliary normally opened contact is opened; frequency converter is just being transferred into terminal S1 or sub-S2 of reverse input end and common port SC disconnection, and frequency converter slows down with setpoint frequency rate of regression control wire cylinder motor and stops.
Press the motor-driven upward silk of a lathe stop button SB2, as do not detect fracture of wire, KA12 is normally closed for the fracture of wire control relay, and the motor-driven silk control relay KA11 that goes up of lathe disconnects, and KA11 and KA3 are parallel connection, disconnect simultaneously just making wire cylinder motor out of service.
4, the speed regulating control of fortune silk speed: when running status automatically, silk speed determines by machined parameters, CNC machine tools software extracts the fast option of silk in the machined parameters, and by the appointment running frequency of MEMOBUS communications protocol setting frequency converter, changing parameter will real time altering silk speed.When switching to manual running status, CNC machine tools software is according to the initial appointment running frequency of silk speed parameter setting frequency converter in the system, and at this moment as pressing silk button on the lathe, frequency converter is just with this frequency drives wire cylinder motor running.Press manual control box fortune silk button, the frequency that the CNC machine tools software change specifies running frequency to set for fortune silk speed parameter.
5, silk tube stop position control: use this function to control lathe and transport the operation that a K switch A3 (relay) controls frequency converter automatically and stop by CNC machine tools.When motor-driven fortune silk or automatic machining state, CNC machine tools reads the frequency converter status register in real time by the MEMOBUS communications protocol, and when above two condition stopped, CNC machine tools was controlled the stop position of silk tube by the lathe parameter stop position of setting.
6, fracture of wire detects: distributed in the detection position three fracture of wire sense switch SQ4, SQ15, SQ16, the parallel connection of three fracture of wire sense switches.During fracture of wire, fracture of wire sense switch closure, fracture of wire control relay KA12 adhesive, its normally-closed contact is opened, and the motor-driven silk control relay KA11 that goes up of lathe cuts off the power supply, and can't move the motor-driven thread attitude that.Simultaneously CNC machine tools obtains the whether feedback signal of adhesive of fracture of wire control relay KA12, to judge whether fracture of wire, also can't move motor-driven fortune silk or machining state automatically.
7, spacing excessively the stopping of silk tube: if the silk tube reaches the limit of behind the stroke not inverted running; the silk tube collision block of being with will be met microswitch SQ3; make silk tube protection contactor KM5 get electric and self-locking; fortune wire connection tentaculum KM4 dead electricity; its auxiliary normally opened contact is opened; frequency converter is just being transferred into terminal S1 or sub-S2 of reverse input end and common port SC disconnection, and frequency converter slows down with setpoint frequency rate of regression control wire cylinder motor and stops.
8, brake the wire cylinder motor direct current energy consumption lathe outage back: after the lathe outage suddenly, frequency converter can not controlled wire cylinder motor and do to slow down and stop, and will bring very big danger like this, gently then fracture of wire, weigh and then damage machine tool component.The utlity model has wire cylinder motor direct current energy consumption braking circuit, its function is described as follows: press lathe start button, and electric contactor KM2 adhesive on the electric contactor KM1, second on first, each electric component of lathe powers on.Direct current energy consumption braking contactor KM10 adhesive, it is often opened, and auxiliary contact cut out, normally closed auxiliary contact is opened, the auxiliary normally opened contact, the fuse FU1 charging that make energy storage capacitor C5 pile Q1, current-limiting resistance R4, direct current energy consumption braking contactor KM10, and the electrical link that cuts off energy storage capacitor C5 and wire cylinder motor M by bridge.After the lathe outage suddenly, electric contactor KM2 disengagement on the electric contactor KM1, second on first, make direct current energy consumption braking contactor KM10 throw off, it is often opened, and auxiliary contact are opened, normally closed auxiliary contact is closed, frequency converter base stage blockade input terminal S3 and common port SC are by another normally closed auxiliary contact UNICOM of direct current energy consumption braking contactor KM10, make frequency converter interrupt output, and disconnect three of the output of frequency converter and wire cylinder motor by direct current energy consumption braking contactor KM10 and interrelate, energy storage capacitor C5 incorporates between the motor two-phase, realizes the direct current energy consumption braking.
Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.
Claims (9)
1, the silk tube control device used of a kind of electric spark linear cutting machine is characterized in that this tube control device comprises:
Frequency converter, the wire cylinder motor of spark cutting machine is connected to three-phase alternating-current supply through this frequency converter, and frequency converter rotating startup stops control end employing multi-function input terminal;
The Frequency Converter Control part, described Frequency Converter Control partly comprises manual control box, is connected in the Frequency Converter Control plate between frequency converter and this manual control box, the COM2 port of Frequency Converter Control plate is connected with the communication terminal of frequency converter, and described manual control box is provided with the fortune silk button that is connected to the Frequency Converter Control plate;
Frequency converter operation commutation part, comprise wire cylinder motor control panel, silk tube left lateral way limit switch and silk tube right lateral way limit switch, this wire cylinder motor control panel is just changeing input, counter-rotating input, common port and silk tube left lateral way limit switch with frequency converter respectively, silk tube right lateral way limit switch links to each other, after the collision block of wire cylinder motor is run into a silk tube left lateral journey switch or a tube right lateral journey switch, commutation signal will be controlled the commutation of wire cylinder motor rotating and silk tube or judge a stop position of tube by this wire cylinder motor control panel input converter; And
Wire cylinder motor direct current energy consumption brake portion, this wire cylinder motor direct current energy consumption brake portion is connected with wire cylinder motor, and in lathe when outage, cut off the output of frequency converter, and direct current is incorporated between the two-phase of this motor and carried out the direct current energy consumption braking.
2, the silk tube control device used of electric spark linear cutting machine as claimed in claim 1, it is characterized in that, described frequency converter operation commutation part comprises silk tube rotating relay, the normally-closed contact of this tube rotating relay is connected in just to be changeed between input and common port, its normally opened contact is connected between counter-rotating input and the common port, silk tube left lateral journey switch, silk tube right lateral journey switch are controlled the break-make of each contact of this tube rotating relay, change the wire cylinder motor rotation direction.
3, the silk tube control device used of electric spark linear cutting machine as claimed in claim 2, it is characterized in that, described wire cylinder motor direct current energy consumption brake portion comprises power supply, rectification unit, holds stream unit and control module, described power supply charges to the described stream unit that holds after this rectification unit rectification, described control module is controlled the break-make of this wire cylinder motor direct current energy consumption brake portion and wire cylinder motor, after the lathe outage suddenly, control module makes frequency converter interrupt output, and will hold the stream unit and incorporate between the motor two-phase.
4, the silk tube control device used of electric spark linear cutting machine as claimed in claim 3, it is characterized in that, described rectification unit is the bridge heap, described hold stream the unit be electric capacity, described control module comprises the direct current energy consumption braking contactor, its main contact is connected on the major loop between frequency converter and the wire cylinder motor, the power supply that the direct current energy consumption brake control section is divided is connected to described bridge heap by the auxiliary contact of often opening of this direct current energy consumption braking contactor, and the normally closed auxiliary contact of storage capacitor by this direct current energy consumption braking contactor is connected between the two-phase of described wire cylinder motor.
5, the silk tube control device used of electric spark linear cutting machine as claimed in claim 4 is characterized in that another normally closed auxiliary contact of described direct current energy consumption braking contactor is connected in the base stage of frequency converter and blocks between input terminal and the common port.
6, the silk tube control device of using as each described electric spark linear cutting machine of claim 1 to 5, it is characterized in that, the control circuit of described Frequency Converter Control part comprises frequency converter start-up control unit, described frequency converter start-up control unit comprises the lathe gauge tap that cuts off the power supply automatically, the lathe cut-off switch, the lathe upper electrical switch, electric contactor on first, electric contactor on second, wherein, the lathe that is connected to the three-phase alternating-current supply phase line cut off the power supply automatically the gauge tap other end and lathe cut-off switch, the series connection of lathe upper electrical switch, be connected between lathe upper electrical switch and zero line behind the coils from parallel connection of coils of electric contactor on the electric contactor and second on described first, and the auxiliary normally opened contact of electric contactor is in parallel with the lathe upper electrical switch on described first; Two of electric contactor auxiliary normally opened contacts are serially connected with the two ends of direct current energy consumption braking contactor coil on described first, by electric contactor control direct current energy consumption braking contactor on first.
7, the silk tube control device used of electric spark linear cutting machine as claimed in claim 6, it is characterized in that, described control circuit comprises that fracture of wire detects control module, described fracture of wire detects sense switch and the fracture of wire control relay that control module comprises three parallel connections, wherein, this organizes sense switch one termination control power line in parallel, ground connection after the other end is connected with the coil of fracture of wire control relay.
8, the silk tube control device used of electric spark linear cutting machine as claimed in claim 7, it is characterized in that, described control circuit comprises the motor-driven silk control module of going up, the described motor-driven silk control module of going up comprises a silk start button, goes up a silk stop button and the motor-driven silk control relay of going up of lathe, the normally-closed contact of the fracture of wire control relay that is connected with the control power supply, go up a silk start button, go up the silk stop button and the motor-driven coil of going up a control relay of lathe connected successively after ground connection.
9, the silk tube control device that electric spark linear cutting machine as claimed in claim 8 is used, it is characterized in that, described transducer control circuit comprises automatic fortune silk control module, described automatic fortune silk control module comprises fortune wire connection tentaculum, silk tube protection contactor, microswitch, after transporting a gauge tap automatically and the motor-driven upward silk of lathe control relay is in parallel, lathe is connected to first pin of microswitch, silk tube protection contactor connects by the microswitch self-locking, the normally-closed contact of this microswitch and a normally-closed contact of tube protection contactor, the coil series connection back connecting to neutral line of the normally opened contact of electric contactor and fortune wire connection tentaculum on second, another normally opened contact of electric contactor is serially connected with between the coil and normally opened contact of silk tube protection contactor on second; The normally opened contact of this fortune wire connection tentaculum is connected in the common port of this frequency converter and is just changeing between input, the counter-rotating input break-make of just changeing input or counter-rotating input and common port with control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105271U CN201371297Y (en) | 2009-01-20 | 2009-01-20 | Wire cylinder control device for wire-cut electrical discharge machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105271U CN201371297Y (en) | 2009-01-20 | 2009-01-20 | Wire cylinder control device for wire-cut electrical discharge machine |
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| Publication Number | Publication Date |
|---|---|
| CN201371297Y true CN201371297Y (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920105271U Expired - Lifetime CN201371297Y (en) | 2009-01-20 | 2009-01-20 | Wire cylinder control device for wire-cut electrical discharge machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032668A (en) * | 2012-12-28 | 2013-04-10 | 中核（天津）机械有限公司 | Device for preventing machine tool auxiliary cart from being collided |
| CN105195843A (en) * | 2015-09-09 | 2015-12-30 | 泰州市晨虹数控设备制造有限公司 | Electrode wire reciprocating progressive type wire winding method and device for WEDM (wire cut electrical discharge machining) |
| CN108214944A (en) * | 2018-01-08 | 2018-06-29 | 梁涛 | A kind of jade cutting equipment and its cutting method |
| CN110262404A (en) * | 2019-05-20 | 2019-09-20 | 南京交通职业技术学院 | Abrasive wire sawing machine control circuit |
| CN113878187A (en) * | 2020-07-03 | 2022-01-04 | 阿杰·查米莱斯股份有限公司 | Wire management method for high-speed wire-moving cutting |
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2009
- 2009-01-20 CN CN200920105271U patent/CN201371297Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032668A (en) * | 2012-12-28 | 2013-04-10 | 中核（天津）机械有限公司 | Device for preventing machine tool auxiliary cart from being collided |
| CN105195843A (en) * | 2015-09-09 | 2015-12-30 | 泰州市晨虹数控设备制造有限公司 | Electrode wire reciprocating progressive type wire winding method and device for WEDM (wire cut electrical discharge machining) |
| CN105195843B (en) * | 2015-09-09 | 2017-04-12 | 泰州市晨虹数控设备制造有限公司 | Electrode wire reciprocating progressive type wire winding method and device for WEDM (wire cut electrical discharge machining) |
| CN108214944A (en) * | 2018-01-08 | 2018-06-29 | 梁涛 | A kind of jade cutting equipment and its cutting method |
| CN108214944B (en) * | 2018-01-08 | 2023-07-04 | 东莞市文涛自动化有限公司 | Jade cutting equipment and cutting method thereof |
| CN110262404A (en) * | 2019-05-20 | 2019-09-20 | 南京交通职业技术学院 | Abrasive wire sawing machine control circuit |
| CN110262404B (en) * | 2019-05-20 | 2024-05-24 | 南京交通职业技术学院 | Sand wire cutting machine tool control circuit |
| CN113878187A (en) * | 2020-07-03 | 2022-01-04 | 阿杰·查米莱斯股份有限公司 | Wire management method for high-speed wire-moving cutting |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20091230 |