CN102179880A - Multi-wire cutting machine - Google Patents
Multi-wire cutting machine Download PDFInfo
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- CN102179880A CN102179880A CN2011100773186A CN201110077318A CN102179880A CN 102179880 A CN102179880 A CN 102179880A CN 2011100773186 A CN2011100773186 A CN 2011100773186A CN 201110077318 A CN201110077318 A CN 201110077318A CN 102179880 A CN102179880 A CN 102179880A
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Abstract
The invention discloses a multi-wire cutting machine for cutting hard and fragile electronic materials such as monocrystalline silicon and crystal. The highest speed of cutting wires can reach 400 metres per minute, the reciprocation using rate of the cutting wires is high, and production cost is effectively reduced. The multi-wire cutting machine comprises three grooved wheels, a pay-off mechanism, a take-up mechanism, a workbench, a wire storage mechanism and the like, wherein annular grooves are formed on the grooved wheels in parallel; the wire storage mechanism comprises a reciprocating movement mechanism, a left fixed pulley shaft, a left movement pulley shaft, a right fixed pulley shaft and a right movement pulley shaft; the left fixed pulley shaft, the left movement pulley shaft, the right fixed pulley shaft and the right movement pulley shaft are sleeved with a plurality of pulleys respectively; when a relative distance between the left movement pulley shaft and the left fixed pulley shaft is changed under the driving of the reciprocating movement mechanism, the relative distance between the right movement pulley shaft and the right moved pulley shaft is changed oppositely; and the cutting wires are wound from a new line wheel, wound around the pulleys on the left fixed pulley shaft and the left movement pulley shaft sequentially, wound around the annular grooves of the three grooved wheels sequentially, wound around the pulleys on the right fixed pulley shaft and the right movement pulley shaft sequentially, and wound in a take-up wheel.
Description
Technical field
The present invention relates to a kind of multi-line cutting machine, it is mainly used in crisp hard nonmetallic materials such as cutting monocrystalline silicon, polysilicon, crystal, synthetic cut stone.
Background technology
Present multi-line cutting machine mainly comprises sheave, payingoff mechanism, take-up mechanism, workbench, cutting silk, spray equipment, bus cable device.
Sheave has three, is parallel to each other, and one of them sheave is the driving sheave that rotates under spindle motor drives, and all the other are the driven sheave that links by synchronous band and driving sheave.All be carved with annular groove on the sheave, the distance between adjacent arbitrarily individual two annular grooves equates.Payingoff mechanism, the ew line that comprise the unwrapping wire servomotor, under the drive of unwrapping wire servomotor, rotates wheel, unwrapping wire controlling organization.Take-up mechanism comprises take-up servomotor, the take-up pulley that rotates, take-up controlling organization under the drive of take-up servomotor.
The unwrapping wire control device comprises a unwrapping wire dancer, and the unwrapping wire dancer is arranged on the unwrapping wire fork, and an end of unwrapping wire fork is fixed in the unwrapping wire rotating shaft, and the unwrapping wire fork links to each other with the laying tension spring that makes the unwrapping wire fork around the unwrapping wire shaft swing; The unwrapping wire rotating shaft links to each other with the unwrapping wire angular transducer that detects this unwrapping wire rotating shaft rotational angle, and the output of unwrapping wire angular transducer connects the unwrapping wire servomotor.
The take-up control device comprises a take-up dancer, and the take-up dancer is arranged on the take-up fork, and an end of take-up fork is fixed in the take-up rotating shaft, and the take-up fork links to each other with the takeup tension spring that makes the take-up fork around the take-up shaft swing; The take-up rotating shaft links to each other with the take-up angular transducer that detects this take-up rotating shaft rotational angle, and the output of take-up angular transducer receives the line servomotor.
Described cutting silk lays out from the ew line wheel, and behind the unwrapping wire dancer, the annular groove from three sheaves is walked around successively again, again through take-up dancer, bus cable device around going into take-up pulley.
Bottom between two sheaves, be used to place the workbench that is cut workpiece, can be in lifting on perpendicular to the direction of aforementioned two sheave axis under the drive of elevating mechanism.
The unwrapping wire servomotor is torque control, and it and laying tension spring are controlled the tension force of actinobacillus wheel to the cutting silk between the sheave (also can be referred to as unwrapping wire section cutting silk) jointly; The take-up servomotor is torque control, and it and takeup tension spring are controlled the tension force of sheave to the cutting silk between the take-up pulley (also can be referred to as take-up section cutting silk) jointly.
The cutting silk is generally ordinary steel wire, seldom adopts the diamond steel wire.Spray equipment is used for to cutting the diamond mortar that silk spraying coating line cutting oil and grinding-material micro mist mix together.
During work, unwrapping wire servomotor, take-up servomotor, spindle motor be positive direction (as clockwise) rotation simultaneously earlier, three also positive direction rotations of sheave, and the cutting silk between two sheaves of workbench both sides is that the positive direction straight line moves; Then, unwrapping wire servomotor, take-up servomotor, spindle motor more simultaneously in the other direction (as counterclockwise) rotate, three sheaves are counter-rotation also, the cutting silk between two sheaves of workbench both sides promptly in the other direction straight line move.When the cutting silk straight line between two sheaves of workbench both sides moved, workbench drove workpiece and does feed motion, and the cutting silk just cuts workpiece.
The deficiency of existing multi-line cutting machine.Actinobacillus wheel and take-up pulley are in continuous change speed, so the torque control that all is to use when control take-up servomotor, unwrapping wire servomotor according to the variation of the coiling amount on actinobacillus wheel and the take-up pulley.; because three sheave portion rotating toggle speeds must and actinobacillus wheel, take-up pulley (linear velocity equates) synchronously; in order to make three sheaves higher velocity of rotation be arranged to improve stock-removing efficiency; just must prolong the acceleration and deceleration time of spindle motor; cooperate the take-up servomotor of torque control, the slower problem of acceleration and deceleration reaction of unwrapping wire servomotor; that is to say that the acceleration and deceleration time of spindle motor is longer.And in order to rotate synchronously with actinobacillus wheel, take-up pulley, spindle motor is starting and stopped process medium velocity instability (bigger fluctuation can occur).Because the acceleration of spindle motor and the time of deceleration are long, the linear velocity instability when starting and stopping to be easy to generate the stria sheet during cutting, reduced the quality of product.If when rotating starts and stops, reducing the acceleration and deceleration time, be easy to generate broken string again; So the general sheave time of starting or stoping is 5-6 second, at most in per minute 5-6 time, cutting efficiency is very low in sheave rotating action.
Summary of the invention
The purpose of this invention is to provide a kind of cutting silk cutting silk speed faster, the multi-line cutting machine that cutting efficiency is high can be arranged.
Multi-line cutting machine of the present invention comprises:
Three parallel sheaves all are carved with annular groove, under spindle motor drives clockwise or rotate counterclockwise; Distance between adjacent two annular grooves equates;
Payingoff mechanism, the ew line that comprise the unwrapping wire motor, under the drive of unwrapping wire motor, rotates wheel, unwrapping wire control device; The output of unwrapping wire control device connects the unwrapping wire motor, with the rotation of control unwrapping wire motor;
Take-up mechanism comprises take-up motor, the take-up pulley that rotates, take-up control device under the drive of take-up motor; The output of take-up control device receives the line motor, with the rotation of control take-up motor;
Workbench is used to place the workpiece that is cut, and the bottom between two sheaves can lifting on perpendicular to the direction of aforementioned two sheave axis;
The cutting silk;
Wire storage mechanism comprises left fixed block axle, moves left pulley spindle, right fixed block axle, the pulley spindle that moves right, reciprocating device; Be respectively installed with n+1 left fixed pulley, a n+1 right fixed pulley on left side fixed block axle, the right fixed block axle; Move left pulley spindle, be respectively installed with n left movable pulley on the pulley spindle that moves right, a n right movable pulley; Moving left pulley spindle is co-located on the reciprocating device with the pulley spindle that moves right, under the drive of reciprocating device, moving left pulley spindle moves back and forth with respect to left fixed block axle and right fixed block axle respectively with the pulley spindle that moves right, and when moving left pulley spindle with respect to the variable in distance of left fixed block axle, the pulley spindle that moves right is done opposite variation with respect to the distance of right fixed block axle; N 〉=1;
Described cutting silk lays out from the ew line wheel; Through a left fixed pulley, a left movable pulley,, so repeatedly, lay out through each left fixed pulley and left movable pulley and from last left fixed pulley again through another left fixed pulley, another left movable pulley; , the annular groove from three sheaves is walked around successively again, through a right fixed pulley, a right movable pulley, again through another right fixed pulley, another right movable pulley, so repeatedly, lays out through each right fixed pulley and right movable pulley and from last right fixed pulley; Again around going into take-up pulley.
Beneficial effect of the present invention:
The present invention has increased wire storage mechanism with respect to prior art.The reciprocating device action drives and moves left the pulley spindle and the pulley spindle mobile (but direction is opposite) together that moves right.Because when moving left pulley spindle with respect to the variable in distance of left fixed block axle, the pulley spindle that moves right is done opposite variation with respect to the distance of right fixed block axle; That is to say, move left pulley spindle when increasing with respect to the distance of left fixed block axle, the pulley spindle that moves right reduces with respect to the distance of right fixed block axle, and this moment, sheave clockwise rotated; Move left pulley spindle when reducing with respect to the distance of left fixed block axle, the pulley spindle that moves right increases with respect to the distance of right fixed block axle, and this moment, sheave rotated counterclockwise.Three sheave rotation drive cutting distances that move are basic identical with the amount of storage line (the stroke a*2n=2na of reciprocating device) of wire storage mechanism.
Specifically, move left pulley spindle when increasing a stroke a with respect to the distance of left fixed block axle, the pulley spindle that moves right reduces a stroke a with respect to the distance of right fixed block axle.Discharge that cut filament length degree be 2na because the distance of pulley spindle with respect to right fixed block axle that move right reduces a this moment, simultaneously owing to move left pulley spindle and increase a stroke a with respect to the distance of left fixed block axle to collect cutting filament length degree be 2na, this moment, sheave clockwise rotated that to drive the mobile distance of cutting silk also be 2na.In like manner, move left pulley spindle when reducing a stroke a with respect to the distance of left fixed block axle, the pulley spindle that moves right increases a stroke a with respect to right fixed block axle.This moment is owing to move left the distance of pulley spindle with respect to left fixed block axle and reduce a and discharge that to cut the filament length degree be 2na, simultaneously to collect cutting filament length degree be 2na because the pulley spindle that moves right increases a stroke a with respect to the distance of right fixed block axle, and this moment, sheave rotated counterclockwise that to drive the mobile distance of cutting silk also be 2na.
Therefore, sheave clockwise or rotate counterclockwise, unwrapping wire motor and actinobacillus wheel, take-up motor and take-up pulley are all motionless substantially or less rotation arranged.That is to say,, make the cutting silk move repeatedly, workpiece is cut by reciprocating device in the wire storage mechanism and sheave acting in conjunction.Spindle motor need not to rotate with unwrapping wire motor and take-up motor synchronous, at cutting silk so that linear velocity is to work piece cut faster, unwrapping wire motor and take-up motor are all motionless substantially or less rotation arranged, the start-stop time of spindle motor can foreshorten to 0.2 second, simultaneously, cutting speed can reach 400 meters of per minutes, cutting efficiency height.
Above-mentioned multi-line cutting machine, the stroke of reciprocating device is a, move left pulley spindle when increasing a with respect to the distance of left fixed block axle, it is that the unwrapping wire amount is c that actinobacillus wheel rotates the length of emitting the cutting silk, it is 2na-c that three sheaves clockwise rotate the mobile distance of drive cutting silk, and take-up pulley rotates and moves into the length of cutting silk is that the take-up amount is c; Move left pulley spindle when reducing a with respect to the distance of left fixed block axle, it is that the unwrapping wire amount is d that actinobacillus wheel rotates the length of emitting the cutting silk, it is 2na+d that three sheaves rotate counterclockwise the mobile distance of drive cutting silk, and take-up pulley rotates and moves into the length of cutting silk is that the take-up amount is d.
Improved like this effect is described below.Easy for what describe, sheave is rotated the mobile distance of drive cutting silk abbreviate the linear distance that sheave rotates as, abbreviate as and move left the pulley spindle distance moving left the distance of pulley spindle with respect to left fixed block axle, the distance of pulley spindle with respect to right fixed block axle abbreviates the pulley spindle distance that moves right as with moving right.
When three sheaves rotate counterclockwise, wire storage mechanism action, move left pulley spindle with respect to left fixed block wheelbase from reducing a, the pulley spindle that moves right with respect to right fixed block wheelbase from increasing a; The linear distance that sheave rotates is 2na+d, and promptly three sheave portions need change that to get and send cutting filament length degree be 2na+d.And wire storage mechanism is 2na with respect to left fixed block wheelbase from the cutting filament length degree that minimizing a provides because of moving left pulley spindle, and the length that lacks is provided by the ew line wheel for the cutting silk of d.Wire storage mechanism is 2na with respect to right fixed block wheelbase from the cutting filament length degree that increase a collects because of the pulley spindle that moves right, and the length that has more is that the cutting silk of d is collected by take-up pulley.(2na+d) left side (right side) the mobile pulley axle travel distance a of the ÷ cutting speed=spindle motor duration of runs=wire storage mechanism time=receipts (putting) the line motor rotation time, it is very slow at this moment to receive (putting) line servomotor speed.
In like manner, when three sheaves clockwise rotate, wire storage mechanism action, the pulley spindle that moves right with respect to right fixed block wheelbase from reducing a, move left pulley spindle with respect to left fixed block wheelbase from increasing a; The linear distance that sheave rotates is 2na-c, and promptly three sheave portions need change that to get and send cutting filament length degree be 2na-c.And wire storage mechanism is 2na with respect to right fixed block wheelbase from the cutting filament length degree that minimizing a provides because of the pulley spindle that moves right, and the length that has more is that the cutting silk of c is collected by take-up pulley.Wire storage mechanism is 2na with respect to left fixed block wheelbase from the cutting filament length degree that increase a need collect because of moving left pulley spindle, and the length that lacks is provided by actinobacillus wheel for the cutting silk of c.(2na-c) left side (right side) the mobile pulley axle travel distance a of the ÷ cutting speed=spindle motor duration of runs=wire storage mechanism time=receipts (putting) the line motor rotation time, it is very slow at this moment to receive (putting) line servomotor speed.
Like this, no matter sheave positive direction or counter-rotation drive cutting silk positive direction or move in the other direction and during work, all have new cutting silk mend into, the cutting silk uses wearing and tearing slow, easy fracture not, service time is long, cost is low.Therefore the cutting silk of this multi-line cutting machine can use for a long time, not easy fracture.And sheave is counterclockwise or the speed of clockwise rotating can be very fast, and it is but very slow to receive (putting) line servomotor speed, and both linear velocities are asynchronous.Spindle motor can rapid starting/stopping, and receives the slowly start and stop of (putting) line servomotor, and the cutting silk can not break.Spindle motor bigger fluctuation can not occur in startup and stopped process medium velocity, adds that cutting speed is very fast, the product quality height of cutting.
Above-mentioned multi-line cutting machine, c=d; C/2na=(2-16) %.That is to say that cutting silk positive direction or opposite direction whenever move once, the length of mending the cutting silk of going into approximately is (2-16) % of amount of storage line.Each length of going into to cut silk of mending is oversize, cutting silk utilization rate deficiency; Each length of going into to cut silk of mending is too short, cuts the silk wearing and tearing comparatively fast, easy fracture.It is few that this multi-line cutting machine once cuts the consumption steel wire, and whole coil silk long service life has effectively reduced production cost.
Above-mentioned multi-line cutting machine, described cutting silk are ordinary steel wire or diamond steel wire, and described multi-line cutting machine also comprises to being wrapped in the cutting silk spray way cooling fluid on the sheave or the spray equipment of diamond mortar.Usually, described cutting silk is an ordinary steel wire, to ordinary steel wire spray way diamond mortar.Described cutting silk is the diamond steel wire, to diamond steel wire spray way cooling fluid.Cooling fluid, diamond mortar (line cutting oil and grinding-material micro mist mix together), spray equipment belong to prior art, no longer describe.
Above-mentioned multi-line cutting machine, reciprocating device comprises reciprocating motor, follower, the driving wheel that rotates, connects the synchronous band of driving wheel and follower under the drive of reciprocating motor, move left pulley spindle and the pulley spindle that moves right is separately fixed at and is positioned at being with synchronously of driving wheel and follower both sides.But iff moving left pulley spindle and the pulley spindle that moves right is fixed on and is with synchronously, when synchronous Tape movement, band has dancing unavoidably synchronously, like this, moving left pulley spindle will be along with synchronous band swing with the pulley spindle that moves right, unexpected deviation can appear in the length that causes cutting silk, for this reason, as further improvement, it also comprise be positioned at driving wheel and follower both sides synchronously with parallel left rail and right guide rail, move left pulley spindle and the pulley spindle that moves right is fixed on by left skateboard and right slide plate respectively and is with synchronously; Left skateboard and right slide plate are slidingly arranged in respectively on left rail and the right guide rail.Like this, because left rail and right guide rail are to the guide effect of left skateboard and right slide plate, left skateboard and right slide plate can only move along left rail that is parallel to synchronous band and right guide rail, move left pulley spindle and just can not swing on the direction that moves perpendicular to it with the pulley spindle that moves right, the length control of cutting silk is more accurate.
Above-mentioned multi-line cutting machine, a sheave is the driving sheave that rotates under spindle motor drives in three sheaves, two other sheave is for passing through the moving driven sheave of cutting silk ribbon.
Above-mentioned multi-line cutting machine, it also comprise mainly by along the winding displacement bar that axially moves back and forth that is parallel to take-up pulley, rotate the glass pulley that is arranged on the winding displacement bar, drive the bus cable device that winding displacement motor that the winding displacement bar moves back and forth is formed, the cutting silk that the pulley from right fixed block axle lays out through glass pulley around going into take-up pulley.When the take-up pulley take-up, the take-up pulley revolution moves a week, and the winding displacement bar is promptly along move axially once (stepping) that is parallel to take-up pulley.Glass pulley just moves to an end from the other end of take-up pulley axis again after moving to the other end from an end of take-up pulley axis under the drive of winding displacement bar.So repeatedly, like this, just even on the periphery that is wound into take-up pulley the cutting silk.
Above-mentioned multi-line cutting machine, it also comprises the intermediate tension control device, dancer in the middle of the intermediate tension control device comprises is by active center fixed roller, the driven center fixed roller of intermediate tension servomotor drive; On the fork, an end of middle fork was fixed on the intermediate rotary shaft in the middle of middle dancer was arranged on one; Middle fork links to each other with the intermediate tension spring that makes middle fork around the intermediate rotary shaft swing; Intermediate rotary shaft links to each other with the intermediate angle sensor that detects this intermediate rotary shaft rotational angle, and the output of intermediate angle sensor connects the intermediate tension servomotor; Behind middle dancer, walk around initiatively center fixed roller and driven center fixed roller more repeatedly from the cutting silk that last right fixed pulley lays out, again around going into take-up pulley.
The course of work of intermediate tension control device: the intermediate tension servomotor adopts the operation of torque control model, if the tension force of cutting silk changes, fork swing in the middle of the intermediate tension spring promptly makes, middle fork promptly drives intermediate rotary shaft and rotates (swing), the angle that the intermediate angle sensor promptly detects intermediate rotary shaft changes, the intermediate angle sensor promptly sends signal and gives the intermediate tension servomotor, make its rotation, the cutting filament winding is gone out or, make the cutting thread tension keep constant substantially around going into initiatively center fixed roller and driven center fixed roller.
The another one effect of this intermediate tension control device is: it is more convenient to remove the take-up pulley scrap wire.Its process of brief description.Because the unworn cutting silk (ew line) of actinobacillus wheel coiling is tighter, and take-up is the pine relatively on going into take-up pulley time the with the cutting silk of crossing (expense line), so expense line on the take-up pulley generally can occur when full, the ew line on the actinobacillus wheel does not also use up.At this moment just need to remove on the take-up pulley scrap wire like this, just must be thread cut off cutting at the take-up pulley place.If there is not the intermediate tension control device, when cutting off take-up pulley place line of cut, just must be with pulling the cutting silk, on the take-up pulley after then the cutting filament winding being gone into to change.If this intermediate tension control device is arranged, it is just more convenient to change take-up pulley.Before cutting off the cutting silk, with adhesive tape the cutting silk between active center fixed roller and the driven center fixed roller is clung, prevent that the cutting silk from losing tension force after cutting off.After changing new take-up pulley then, again after going into several circles of take-up pulley, will cut cutting silk a termination with adhesive tape again and be bonded on the new take-up pulley and get final product.
Above-mentioned multi-line cutting machine, unwrapping wire motor are the unwrapping wire servomotor; The unwrapping wire control device comprises a unwrapping wire dancer, and the unwrapping wire dancer is arranged on the unwrapping wire fork, and an end of unwrapping wire fork is fixed in the unwrapping wire rotating shaft, and the unwrapping wire fork links to each other with the laying tension spring that makes the unwrapping wire fork around the unwrapping wire shaft swing; The unwrapping wire rotating shaft links to each other with the unwrapping wire angular transducer that detects this unwrapping wire rotating shaft rotational angle, and the output of unwrapping wire angular transducer connects the unwrapping wire servomotor; The cutting filament winding that lays out from ew line wheel behind the unwrapping wire dancer again around going into a left fixed pulley.
The course of work of unwrapping wire control device: the unwrapping wire servomotor adopts speed control mode, if pulling cutting silk, the tension force of cutting silk becomes the swing of big pulling unwrapping wire fork, the angle that the unwrapping wire angular transducer promptly detects the unwrapping wire rotating shaft changes, unwrapping wire angle sensor output voltage rises and promptly sends signal to the unwrapping wire servomotor, make its rotation, make the cutting filament winding go out actinobacillus wheel, when stopping drag the cutting silk, the laying tension spring resets the unwrapping wire fork, the unwrapping wire servomotor stops operating, and makes the cutting thread tension keep constant substantially.
Above-mentioned multi-line cutting machine, take-up motor are the take-up servomotor; The take-up control device comprises a take-up dancer, and the take-up dancer is arranged on the take-up fork, and an end of take-up fork is fixed in the take-up rotating shaft, and the take-up fork links to each other with the takeup tension spring that makes the take-up fork around the take-up shaft swing; The take-up rotating shaft links to each other with the take-up angular transducer that detects this take-up rotating shaft rotational angle, and the output of take-up angular transducer receives the line servomotor; The cutting silk that lays out from last right fixed pulley is behind the take-up dancer, again around going into take-up pulley.
The course of work of take-up control device: if the tension force of cutting silk diminishes, the takeup tension spring promptly makes the take-up fork swing, find that fork promptly drives the take-up rotating shaft and rotates (swing), the angle that the take-up angular transducer promptly detects the take-up rotating shaft changes, the take-up angular transducer promptly sends signal and gives the take-up servomotor, make its rotation to make the cutting filament winding go into take-up pulley, make the cutting thread tension keep constant substantially.
Description of drawings
Fig. 1 is a principle schematic of the present invention.
Fig. 2 is a payingoff mechanism, schematic perspective views such as constant tension control device, take-up mechanism, bus cable device.
Fig. 3 is a payingoff mechanism, schematic diagrames such as constant tension control device (removing the cutting silk).
Fig. 4 is a payingoff mechanism, schematic perspective views such as constant tension control device, take-up mechanism, bus cable device.
Fig. 5 is a payingoff mechanism, side schematic views such as constant tension control device, take-up mechanism, bus cable device.
Fig. 6 is the schematic perspective view (removing the cutting silk) of wire storage mechanism.
Fig. 7 is the side schematic view (removing the cutting silk) of wire storage mechanism.
Fig. 8 is the schematic perspective view of wire storage mechanism.
Fig. 9 is the side schematic view of wire storage mechanism.
Figure 10 is the schematic perspective view of Geneva mechanism.
Figure 11 is the side schematic view of Geneva mechanism.
Figure 12 is the schematic diagram of a left side (right side) fixed block axle and a left side (right side) fixed pulley.
Figure 13 is the schematic diagram of a left side (right side) mobile pulley axle and a left side (right side) movable pulley.
Figure 14 is the cutaway view (signal) of a left side (right side) mobile pulley axle and a left side (right side) movable pulley.
Figure 15 is the side schematic view of a left side (right side) fixed block axle and a left side (right side) fixed pulley.
Figure 16 is the schematic diagram of active center fixed roller, driven center fixed roller etc.
Figure 17 is the side schematic view of active center fixed roller, driven center fixed roller etc.
Figure 18 is the front view of bus cable device.
Figure 19 is the right view of Figure 18.
Figure 20 is the schematic diagram of bus cable device.
The specific embodiment
Referring to Fig. 1, this multi-line cutting machine, comprise Geneva mechanism 1, wire storage mechanism 2, payingoff mechanism 3, constant tension control device (intermediate tension control device) 4, take-up mechanism 5, bus cable device 6, table mechanism 7, cutting silk 8, spray equipment 9, Programmable Logic Controller (PLC).
Referring to Figure 11,12, Geneva mechanism 1 comprises driving sheave 11, the passive sheave 12,13 that three axis are parallel to each other and drives spindle motor 14, incoming wire guide wheel 15, outgoing line guide wheel 16, the outgoing line guide wheel 17 that driving sheave rotates.The periphery of driving sheave and passive sheave all has annular groove (V-type groove).Distance between adjacent two annular grooves all equates.The annular groove cross section is V-shaped.
Referring to Fig. 7-13, wire storage mechanism 2 comprises left fixed block axle 21, moves left pulley spindle 23, right fixed block axle 22, the pulley spindle 24 that moves right, reciprocating device 25; Be respectively installed with n+1 left fixed pulley 261, a n+1 right fixed pulley 262 on left side fixed block axle, the right fixed block axle; Move left pulley spindle, be respectively installed with n left movable pulley 263 on the pulley spindle that moves right, a n right movable pulley 264.n＝5。Reciprocating device 25 comprises reciprocating motor 251, reductor 256, the driving wheel 253 that rotates under the drive of reciprocating motor 251 and reductor 256, be connected driving wheel 253 and follower 252 be with 254 synchronously, with be positioned at driving wheel and follower both sides synchronously with parallel left rail 255 and right guide rail 257, left skateboard 258 and right slide plate 259 are slidingly arranged in respectively on left rail and the right guide rail, and are separately fixed at and are positioned at being with synchronously of driving wheel and follower both sides.Left side fixed block axle 21, right fixed block axle 22 are separately fixed on left skateboard 258 and the right slide plate 259.
When reciprocating motor 251 rotates counterclockwise, drive driving wheel 253 and rotate counterclockwise, band promptly rotates counterclockwise synchronously.Be fixed on driving wheel and follower left side synchronously with on left skateboard 258 promptly under the drive of synchronous band along left rail 255 to lower slider, the fixing distance that moves left pulley spindle 23 and left fixed block axle 21 increases gradually on the left skateboard 258; Simultaneously, be fixed on driving wheel and follower right side synchronously with on right slide plate 259 promptly under the drive of synchronous band, upwards slide along right guide rail 257, the distance of fixing move right pulley spindle 24 and right fixed block axle 22 reduces gradually on the right slide plate 259.
On the contrary, when reciprocating motor 251 clockwise rotates, drive driving wheel 253 and clockwise rotate, band promptly clockwise rotates synchronously.Be fixed on driving wheel and follower left side synchronously with on left skateboard 258 promptly under the drive of synchronous band, upwards slide along left rail 255, the fixing distance that moves left pulley spindle 23 and left fixed block axle 21 reduces gradually on the left skateboard 258; Simultaneously, be fixed on driving wheel and follower right side synchronously with on right slide plate 259 promptly under the drive of synchronous band along right guide rail 257 to lower slider, the distance of fixing move right pulley spindle 24 and right fixed block axle 22 increases gradually on the right slide plate 259.
That is to say, under the drive of reciprocating device, moving left pulley spindle moves back and forth with respect to left fixed block axle and right fixed block axle respectively with the pulley spindle that moves right, and when moving left pulley spindle with respect to the variable in distance of left fixed block axle, the pulley spindle that moves right is done opposite variation with respect to the distance of right fixed block axle.
In order not make left skateboard and right slide plate can not bump against with driving wheel and follower, the stroke a of reciprocating device (left skateboard and right slide plate move up and down ultimate range) is less than the distance between driving wheel and the follower.Move left pulley spindle when increasing a stroke a with respect to the distance of left fixed block axle, the pulley spindle that moves right reduces a stroke a with respect to the distance of right fixed block axle.This moment, to discharge cutting filament length degree be 2na (amount of storage line of wire storage mechanism) because the distance of pulley spindle with respect to right fixed block axle that move right reduces a, collects with respect to stroke a of distance increase of left fixed block axle that to cut the filament length degree be 2na owing to move left pulley spindle simultaneously.In like manner, move left pulley spindle when reducing a stroke a with respect to the distance of left fixed block axle, the pulley spindle that moves right increases a stroke a with respect to right fixed block axle.This moment is owing to move left the distance of pulley spindle with respect to left fixed block axle and reduce a to discharge cutting filament length degree be 2na, and to cut the filament length degree be 2na because the pulley spindle that moves right is collected with respect to stroke a of distance increase of right fixed block axle simultaneously.
Referring to Fig. 3-6, Figure 16-19, dancer 43 in the middle of intermediate tension control device 4 comprises is by active center fixed roller 42, the driven center fixed roller 49 of intermediate tension servomotor 41 drives; On the fork 47, an end of middle fork 47 was fixed on the intermediate rotary shaft 48 in the middle of middle dancer 43 was arranged on one; A fork and a fixed bar in the middle of the two ends of intermediate tension spring 44 connect respectively are used to control the tension force that interlude cuts silk.Intermediate rotary shaft links to each other with the intermediate angle sensor that detects this intermediate rotary shaft rotational angle.The output of intermediate angle sensor connects intermediate tension servomotor 41, the control intermediate tension servomotor speed of service.The cutting silk that lays out from last right fixed pulley is walked around initiatively center fixed roller and driven center fixed roller more repeatedly behind guide roller 45, middle dancer 43, guide roller 46, initiatively the center fixed roller lays out again.
Referring to Fig. 3,6, take-up pulley 52, take-up control device that take-up control device 5 comprises take-up servomotor 51, rotates under the drive of take-up servomotor.The take-up control device comprises a take-up dancer 53, and the take-up dancer is arranged on the take-up fork 57, and an end of take-up fork is fixed in the take-up rotating shaft 58, and take-up rotating shaft 58 links to each other with the take-up angular transducer that detects this take-up rotating shaft rotational angle.The output of take-up angular transducer receives the line servomotor, is used to regulate the take-up servomotor speed of service.The two ends of takeup tension spring 54 connect a take-up fork and a fixed bar respectively, are used to control the tension force of take-up side cutting silk.The cutting silk 8 that lays out from active center fixed roller through take-up dancer 53, again pile warp guide roller 55, again through bus cable device 6 around going into take-up pulley.
Referring to Fig. 3, bus cable device 6 comprises along the winding displacement bar 61 that axially moves back and forth that is parallel to take-up pulley, be installed in glass pulley 62 on the winding displacement bar, be installed in two parallel and contacted Wire guide rollers 64 on the winding displacement bar, drive the winding displacement stepper motor 63 that the winding displacement bar moves back and forth.Glass pulley 62 radially and the contact wire between two Wire guide rollers 64 on same plane.Cutting silk 8 after guide roller 55 lays out, pass between two Wire guide rollers 64, again through glass pulley 62 around going into take-up pulley.The cutting silk does not wind with one circuit on take-up pulley, and 63 steppings of winding displacement stepper motor once.Like this, can be neat being wound on the take-up pulley of expense line.
Table mechanism 7 be included in two bottoms between the passive sheave 12,13, be used to place the workbench 71 that is cut workpiece, elevating mechanism.Workbench 71 can be in lifting on the direction on the plane, passive sheave axis place perpendicular to two under the drive of elevating mechanism.
Cutting silk 8 lays out from ew line wheel 32, through guide roller 35, unwrapping wire dancer 33, then enter left fixed pulley in the inside on the left fixed block axle through guide roller 36, again through moving left the left movable pulley in the inside on the pulley spindle, warp and the left fixed pulley that left fixed pulley is adjacent in the inside again, warp and the left fixed pulley that left movable pulley is adjacent in the inside again, so repeatedly, through each left fixed pulley and left movable pulley, and left fixed pulley of the outermost on left fixed block axle lays out, then by guide roller 15, again successively around the V-type groove of going into three sheaves (along sheave axially, since the V-type groove of a side around the cutting silk), manually after going into 10 circles, begin automatic winding with adhesive tape static line head position, up to around full all equidistant V-type grooves of holding successfully, remove fixation adhesive tape paper, take out the end of a thread and enter guide roller 16,17.
The right fixed pulley in the inside that enters on the right fixed block axle in the cutting wire connection, right movable pulley in the inside through moving right on the pulley spindle again, warp and the right fixed pulley that right fixed pulley is adjacent in the inside again, warp and the right fixed pulley that right movable pulley is adjacent in the inside again, so repeatedly, lay out through each right fixed pulley and right movable pulley and right fixed pulley of the outermost on right fixed block axle.After the cutting silk enters guide roller 45 then, enter guide roller 46, walk around initiatively center fixed roller 42 and driven center fixed roller 49 repeatedly again through middle dancer 43 again, initiatively center fixed roller 42 lays out again, again through take-up dancer 53, guide roller 55.Then, the cutting silk passes between two Wire guide rollers 64, fixes with adhesive tape around going into take-up pulley behind glass pulley 62 again.
Spray equipment 9 is positioned at the centre of three sheaves of triangularity arrangement, is used for to the spraying of the cutting silk between two passive sheaves cooling fluid (when cutting silk employing diamond steel wire) or diamond mortar (when cutting silk employing ordinary steel wire).
Multi-line cutting machine when normal cutting, the back and forth walking cutting of multiple tracks steel wire (cutting silk) that mainly is recycling on three sheaves, three sheave portions one steel wire that goes and back running is 2 times a amount of storage line.As move left pulley spindle 23 (or moving left pulley spindle 23) up and down reciprocatingly travel distance be a owing to move left on the pulley spindle 23 n movable pulley, then amount of storage line b=a * n * 2 are installed.Ew line magnitude of recruitment c according to the setting of cutting steel wire wear situation; Three sheave portions collect when rotating counterclockwise because of moving left the amount of storage line b+ ew line magnitude of recruitment c that pulley spindle is emitted from minimizing a with respect to left fixed block wheelbase; Three sheave portions collect the amount of storage line b-ew line magnitude of recruitment c that emits from minimizing a with respect to right fixed block wheelbase because of the pulley spindle that moves right when clockwise rotating; So just reached the go and back running requirement of 2 times of amount of storage line b of cutting steel wire of three sheave portions one.Because must guarantee three sheave portion linear velocity unanimities during cutting, the amount of storage line unanimity of wire storage mechanism, the speed that the wire storage mechanism that only changes is up and down reciprocatingly walked, (b+c) ÷ selection cutting speed=time when promptly three sheave portions rotate counterclockwise=move left pulley spindle 23 to make progress, move left the time that pulley spindle 23 downward travel distance a use; When three sheave portions clockwise rotate (b-c) ÷ select cutting speed=time=storage line portion shifting axle 23 downwards, 24 times that make progress counterclockwise travel distance a use.Up and down reciprocatingly the time of travel distance a is calculated adjustment by industry control PLC according to sheave diameter, cutting speed and ew line magnitude of recruitment c to wire storage mechanism.
Substitute with numeral below and illustrate: set wire storage mechanism travel distance a=1M up and down reciprocatingly, and a left side (right side) movable pulley is installed is counted n=5, ew line magnitude of recruitment c=0.8M; Left and right sides amount of storage line is respectively b=1 * 5 * 2=10M, when three sheave portions rotate counterclockwise, the linear distance b+c=10.8M that sheave rotates, move back and forth up and down mechanism's also action simultaneously in the wire storage mechanism, provide 10M steel wire and ew line wheel that c=0.8M be provided steel wire with respect to left fixed block wheelbase from reducing a because of moving left pulley spindle, receive 10M steel wire with respect to right fixed block wheelbase from increase because of the pulley spindle that moves right simultaneously, the 0.8M steel wire that has more is collected synchronously by take-up pulley.
In like manner, when three sheave portions clockwise rotate, the linear distance b-c=9.2M that sheave rotates, moving back and forth up and down mechanism 25 moves simultaneously, provide 9.2M steel wire by wire storage mechanism, and because of the pulley spindle that moves right is 10M with respect to right fixed block wheelbase from the amount of storage line that reduces to emit, the 0.8M steel wire that has more is collected synchronously by take-up pulley; Need to receive the 10M steel wire from increase with respect to left fixed block wheelbase because of moving left pulley spindle simultaneously, can only return the 9.2M steel wire by three sheaves, lack the 0.8M steel wire and replenish synchronously by the ew line wheel.
Like this, three sheave portions come and go when cutting, and all have new cutting silk and evenly mend synchronously, replace the steel wire after wearing and tearing.Replenish ew line and collection charge line and carry out synchronously in a round action, retractable cable wheel velocity of rotation is slow, breaks so be difficult for producing.Set ew line magnitude of recruitment c according to the sheet number of a cutting material and cutting steel wire wear situation, prolonged steel wire service life, reduced production cost.
Three sheaves rotate back and forth that to drive the time that time that the cutting silk moves and reciprocating device up and down reciprocatingly walk identical.That is to say, by reciprocating device and sheave acting in conjunction, make the cutting silk move repeatedly, workpiece is cut, because spindle motor and reciprocating motor all are to use the position control mode interlock, spindle motor startup, dwell time have been reduced, so can keep the high speed of line of cut on sheave back and forth to walk the cutting efficiency height.Both made under the situation that does not have ew line to replenish and also can cut, at this moment actinobacillus wheel and take-up pulley keep motionless substantially.But line of cut attenuates because of wearing and tearing in cutting process repeatedly or break, and certain restriction in service life is arranged, thus constantly there is ew line to replenish the service life that can prolong the cutting silk, while cutting efficiency height.
The present invention be a kind of diamond steel wire or ordinary steel wire selected as line of cut, to the multi-line cutting machine that crisp hard electron materials such as monocrystalline silicon and crystal cut, cutting speed is up to 400 meters of per minutes, the reciprocal utilization rate height of line of cut.Therefore, it is few that this multi-line cutting machine once cuts the consumption steel wire, and whole coil silk long service life has effectively reduced production cost.
Claims (10)
1. multi-line cutting machine comprises:
Three parallel sheaves all are carved with annular groove, under spindle motor drives clockwise or rotate counterclockwise; Distance between adjacent two annular grooves equates;
Payingoff mechanism, the ew line that comprise the unwrapping wire motor, under the drive of unwrapping wire motor, rotates wheel, unwrapping wire control device; The output of unwrapping wire control device connects the unwrapping wire motor, with the rotation of control unwrapping wire motor;
Take-up mechanism comprises take-up motor, the take-up pulley that rotates, take-up control device under the drive of take-up motor; The output of take-up control device receives the line motor, with the rotation of control take-up motor;
Workbench is used to place the workpiece that is cut, and the bottom between two sheaves can lifting on perpendicular to the direction of aforementioned two sheave axis;
The cutting silk;
It is characterized in that: further comprising:
Wire storage mechanism comprises left fixed block axle, moves left pulley spindle, right fixed block axle, the pulley spindle that moves right, reciprocating device; Be respectively installed with n+1 left fixed pulley, a n+1 right fixed pulley on left side fixed block axle, the right fixed block axle; Move left pulley spindle, be respectively installed with n left movable pulley on the pulley spindle that moves right, a n right movable pulley; Moving left pulley spindle is co-located on the reciprocating device with the pulley spindle that moves right, under the drive of reciprocating device, moving left pulley spindle moves back and forth with respect to left fixed block axle and right fixed block axle respectively with the pulley spindle that moves right, and when moving left pulley spindle with respect to the variable in distance of left fixed block axle, the pulley spindle that moves right is done opposite variation with respect to the distance of right fixed block axle; N 〉=1;
Described cutting silk lays out from the ew line wheel; Through a left fixed pulley, a left movable pulley,, so repeatedly, lay out through each left fixed pulley and left movable pulley and from last left fixed pulley again through another left fixed pulley, another left movable pulley; , the annular groove from three sheaves is walked around successively again, through a right fixed pulley, a right movable pulley, again through another right fixed pulley, another right movable pulley, so repeatedly, lays out through each right fixed pulley and right movable pulley and from last right fixed pulley; Again around going into take-up pulley.
2. multi-line cutting machine as claimed in claim 1 is characterized in that: the stroke of reciprocating device is a,
Move left pulley spindle when increasing a with respect to the distance of left fixed block axle, it is that the unwrapping wire amount is c that actinobacillus wheel rotates the length of emitting the cutting silk, it is 2na-c that three sheaves clockwise rotate the mobile distance of drive cutting silk, and take-up pulley rotates and moves into the length of cutting silk is that the take-up amount is c;
Move left pulley spindle when reducing a with respect to the distance of left fixed block axle, it is that the unwrapping wire amount is d that actinobacillus wheel rotates the length of emitting the cutting silk, it is 2na+d that three sheaves rotate counterclockwise the mobile distance of drive cutting silk, and take-up pulley rotates and moves into the length of cutting silk is that the take-up amount is d.
3. multi-line cutting machine as claimed in claim 2 is characterized in that: c=d; C/2na=(2-16) %.
4. as the described arbitrary multi-line cutting machine of claim 1-3, it is characterized in that: reciprocating device comprises reciprocating motor, follower, the driving wheel that rotates, connects the synchronous band of driving wheel and follower under the drive of reciprocating motor, moves left pulley spindle and the pulley spindle that moves right is separately fixed at and is positioned at being with synchronously of driving wheel and follower both sides.
5. multi-line cutting machine as claimed in claim 4, it is characterized in that: further comprising be positioned at driving wheel and follower both sides synchronously with parallel left rail and right guide rail, move left pulley spindle and the pulley spindle that moves right is fixed on by left skateboard and right slide plate respectively and is with synchronously; Left skateboard and right slide plate are slidingly arranged in respectively on left rail and the right guide rail.
6. as the described arbitrary multi-line cutting machine of claim 1-3, it is characterized in that: the driving sheave of a sheave for rotating under driving at spindle motor in three sheaves, two other sheave is for passing through the moving driven sheave of cutting silk ribbon.
7. as the described arbitrary multi-line cutting machine of claim 1-3, it is characterized in that: further comprising mainly by along the winding displacement bar that axially moves back and forth that is parallel to take-up pulley, rotate the glass pulley that is arranged on the winding displacement bar, drive the bus cable device that winding displacement motor that the winding displacement bar moves back and forth is formed, the cutting silk that the pulley from right fixed block axle lays out through glass pulley around going into take-up pulley.
8. as the described arbitrary multi-line cutting machine of claim 1-3, it is characterized in that: further comprising the intermediate tension control device, dancer in the middle of the intermediate tension control device comprises one is by active center fixed roller, the driven center fixed roller of intermediate tension servomotor drive; On the fork, an end of middle fork was fixed on the intermediate rotary shaft in the middle of middle dancer was arranged on one; Middle fork links to each other with the intermediate tension spring that makes middle fork around the intermediate rotary shaft swing; Intermediate rotary shaft links to each other with the intermediate angle sensor that detects this intermediate rotary shaft rotational angle, and the output of intermediate angle sensor connects the intermediate tension servomotor; Behind middle dancer, walk around initiatively center fixed roller and driven center fixed roller more repeatedly from the cutting silk that last right fixed pulley lays out, again around going into take-up pulley.
9. as the described arbitrary multi-line cutting machine of claim 1-3, it is characterized in that: the unwrapping wire motor is the unwrapping wire servomotor; The unwrapping wire control device comprises a unwrapping wire dancer, and the unwrapping wire dancer is arranged on the unwrapping wire fork, and an end of unwrapping wire fork is fixed in the unwrapping wire rotating shaft, and the unwrapping wire fork links to each other with the laying tension spring that makes the unwrapping wire fork around the unwrapping wire shaft swing; The unwrapping wire rotating shaft links to each other with the unwrapping wire angular transducer that detects this unwrapping wire rotating shaft rotational angle, and the output of unwrapping wire angular transducer connects the unwrapping wire servomotor; The cutting filament winding that lays out from ew line wheel behind the unwrapping wire dancer again around going into a left fixed pulley.
10. as the described arbitrary multi-line cutting machine of claim 1-3, it is characterized in that: the take-up motor is the take-up servomotor; The take-up control device comprises a take-up dancer, and the take-up dancer is arranged on the take-up fork, and an end of take-up fork is fixed in the take-up rotating shaft, and the take-up fork links to each other with the takeup tension spring that makes the take-up fork around the take-up shaft swing; The take-up rotating shaft links to each other with the take-up angular transducer that detects this take-up rotating shaft rotational angle, and the output of take-up angular transducer receives the line servomotor; The cutting silk that lays out from last right fixed pulley is behind the take-up dancer, again around going into take-up pulley.
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| CN2011100773186A CN102179880A (en) | 2011-03-30 | 2011-03-30 | Multi-wire cutting machine |
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| CN2011100773186A CN102179880A (en) | 2011-03-30 | 2011-03-30 | Multi-wire cutting machine |
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| CN102615729A (en) * | 2012-04-14 | 2012-08-01 | 无锡市协清机械制造有限公司 | Inverted cutting worktable on numerical control multi-wire swinging cutting machine |
| CN102615724A (en) * | 2012-04-14 | 2012-08-01 | 无锡市协清机械制造有限公司 | Tension system on numerically controlled multi-wire swing cutting machine |
| CN102689372A (en) * | 2012-06-28 | 2012-09-26 | 山东大学 | Gantry-type linear sawing machine for KDP (potassium dihydrogen phosphate) crystal fixed abrasives |
| CN103085178A (en) * | 2011-11-04 | 2013-05-08 | 上海日进机床有限公司 | Slicing machine for cutting sapphire silicon rods |
| CN103419289A (en) * | 2012-05-23 | 2013-12-04 | 浙江硅宏电子科技有限公司 | Silicon crystal cutting machine |
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| CN105636742A (en) * | 2013-11-21 | 2016-06-01 | 信越半导体株式会社 | Workpiece cutting method |
| CN106132631A (en) * | 2014-04-03 | 2016-11-16 | 信越半导体株式会社 | The cutting-off method of workpiece and working fluid |
| CN107553763A (en) * | 2016-06-30 | 2018-01-09 | 广东先导先进材料股份有限公司 | A kind of method and cutter device of multi-wire saw chip |
| CN108656374A (en) * | 2018-05-14 | 2018-10-16 | 台州职业技术学院 | A kind of bus cable device of multi-line cutting machine |
| CN108972924A (en) * | 2018-07-18 | 2018-12-11 | 阜宁协鑫光伏科技有限公司 | Silicon wafer diced system |
| CN114654591A (en) * | 2022-04-18 | 2022-06-24 | 厦门品河精密科技有限公司 | Four-upright-post four-guide-wheel jacking type multi-wire cutting machine for large stone plates |
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| CN106132631A (en) * | 2014-04-03 | 2016-11-16 | 信越半导体株式会社 | The cutting-off method of workpiece and working fluid |
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| CN105479610B (en) * | 2016-01-07 | 2018-04-13 | 金建华 | A kind of vertically arranged multi-line cutting machine of folding and unfolding spool |
| CN105479610A (en) * | 2016-01-07 | 2016-04-13 | 金建华 | Multi-wire sawing machine with take-up and pay-off cylinders vertically arranged |
| CN107553763A (en) * | 2016-06-30 | 2018-01-09 | 广东先导先进材料股份有限公司 | A kind of method and cutter device of multi-wire saw chip |
| CN108656374A (en) * | 2018-05-14 | 2018-10-16 | 台州职业技术学院 | A kind of bus cable device of multi-line cutting machine |
| CN108972924A (en) * | 2018-07-18 | 2018-12-11 | 阜宁协鑫光伏科技有限公司 | Silicon wafer diced system |
| CN108972924B (en) * | 2018-07-18 | 2020-07-17 | 阜宁协鑫光伏科技有限公司 | Silicon wafer cutting system |
| CN114654591A (en) * | 2022-04-18 | 2022-06-24 | 厦门品河精密科技有限公司 | Four-upright-post four-guide-wheel jacking type multi-wire cutting machine for large stone plates |
| CN114654591B (en) * | 2022-04-18 | 2023-03-24 | 厦门品河精密科技有限公司 | Four-upright-column four-guide-wheel jacking type stone large plate multi-wire cutting machine |
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Application publication date: 20110914 |