CN201493578U - Closed-loop tension dynamically controlled wire-moving mechanism of electric spark wire cutting machine - Google Patents
Closed-loop tension dynamically controlled wire-moving mechanism of electric spark wire cutting machine Download PDFInfo
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- CN201493578U CN201493578U CN2009202348875U CN200920234887U CN201493578U CN 201493578 U CN201493578 U CN 201493578U CN 2009202348875 U CN2009202348875 U CN 2009202348875U CN 200920234887 U CN200920234887 U CN 200920234887U CN 201493578 U CN201493578 U CN 201493578U
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Abstract
The utility model relates to a closed-loop tension dynamically controlled wire-moving mechanism of an electric spark wire cutting machine, the tension of electrode wires of a discharge machining area is exerted on a force sensor fixed on a vertical pillar by an upper first reversing wheel, a lower first reversing wheel and a first reversing arm, and the force sensor converts the tension of the electrode wires to an electrical quantity signal which is processed and amplified by an electronic circuit, thereby controlling a motor, further controlling an upper second reversing wheel and a lower second reversing wheel to move through a lead screw, a nut and a second reversing arm, adjusting the perimeter of the loop-shaped closed electrode wires drawn out of a wire storage cylinder, and utilizing the elastic deformation of the electrode wires to adjust the tension. The tension after the adjustment is further fed back to the electronic circuit for processing by the force sensor, thereby further controlling the motor and realizing the closed-loop dynamic control of the tension of the electrode wires of the electric spark wire cutting machine. The wire-moving mechanism can improve the stability of the pulse electric spark discharge machining of the reciprocating high-speed traveling type electric spark wire cutting machine and solve the stubborn problem of periodic emergence of reversing streaks on the surface of a cut workpiece due to periodic change of the tension of the electrode wires of the machine tool.
Description
Technical field
The utility model relates to WEDM, is specifically related to the dynamic thread delivering machine structure of controlling of a kind of closed loop tension force that the to-and-fro wire-travelling type electric spark wire cutting machine uses.
Background technology
The positive pole of the high frequency pulse power supply of WEDM is received on the workpiece of stationary positioned, and negative pole is received on the wire electrode in the motion, utilizes the galvanic corrosion effect that the Pulse Electric spark discharge produces in working solution between wire electrode and workpiece to carry out the line cutting processing.The resistant to elevated temperatures molybdenum filament of the general employing of wire electrode, and the molybdenum filament that requires the discharge processing district must be under the stable tension force effect and be straightened, stable Pulse Electric spark discharge could be realized between the flexible molybdenum filament of high-speed motion and the workpiece like this, higher line cutting accuracy and cutting surface quality could be obtained.Therefore, the ability that WEDM is controlled wire electrode tension is directly determining the cutting processing quality of lathe, and the thread delivering machine structure of the multiple structure of machine adopted of producing is with the tension force of control electrode silk at present.
Thread delivering machine structure shown in the accompanying drawing 1 is the present the widest a kind of thread delivering machine structure scheme of use face on WEDM, 1 is wire storage tube among the figure, 14 is annular enclosed wire electrode, and 152 is that upper block, 151 is lower tumbler, and 222 is row's silk wheel under last row's silk wheel, 221 is.This thread delivering machine structure utilizes molybdenum filament to have the characteristics of strain, after finishing wire storage tube walkthrough molybdenum filament, carries out " tight silk " operation.Adopt the method for the tight silk of original craft, the molybdenum filament that is arranged in the wire storage tube surface is carried out the manual tight silk of one or many, make molybdenum filament be arranged in the surface of wire storage tube 1 with certain pretension with operative employee's feel and experience.Find that after tested this scheme is subjected to wire storage tube, and there is the influence of tolerance in the manufacturing of guide rail and the assembling, the actual molybdenum filament tension force in discharge processing district causes the cut workpiece surface to have the to-and-fro wire-travelling type electric spark wire cutting machine to process the chronic disease of distinctive periodicity " commutation striped " along with the commutation of wire storage tube running is cyclic fluctuation.In addition, under the situation that the long-time continuous high temperature that electric spark pulsed discharge processing produces impacts, permanent creep elongation can take place in molybdenum filament under the tension force effect, this scheme can't to molybdenum filament creep elongation in the processing cause tension force reduce compensate; Above-mentioned reason causes this type of machine finish and cutting surface quality instability.In addition, manual tight silk method makes this type of lathe can't meet the requirement of international safety standard.For this reason, such lathe can only be used for the cutting processing of low-grade mould and the elementary machining tool that uses as blanking.
Shown in the accompanying drawing 2 is the permanent tension force thread delivering machine of the Weight type structure that the part WEDM uses.1 is wire storage tube among the figure, and 31 is left reverse wheel, and 32 is right reverse wheel, and 9 is regulating wheel, 14 is annular enclosed wire electrode, and 152 is that upper block, 151 is lower tumbler, and 19 is column, and 21 is weight, 222 is that last row's silk wheel, 221 is to arrange the silk wheel down, and 23 is the vertical guide rail pair, and 25 is rope.In this mechanism, a regulating wheel 9 is set on the slide block of vertical guide rail pair 23, on slide block,, utilizes the gravity of weight 21 to make the constant tension of annular enclosed wire electrode 14 with rope 25 weight 21 that dangles.This technical scheme is when static state, and the tension force of annular enclosed wire electrode 14 approximates weight 21 and vertical guide rail is paid 50% of 23 top shoe gravity sums.Though this technical scheme can compensate the creep elongation of molybdenum filament, but when Wire-cut Electrical Discharge Machining, need upper and lower the moving of weight to adjust the dynamic change of molybdenum filament tension force, because the inertia of weight is bigger, adopt flexible rope to be connected with the slide block of vertical guide rail pair again, therefore, the frequency response speed of this mechanism is very low, at wire electrode is that the 8-12 meter per second is transported at a high speed under the situation with the linear velocity, and this mechanism can't respond owing to tolerance in parts manufacturing of thread delivering machine structure and the assembling causes the variation of dynamic tension.Under these circumstances, the dynamic tension on the annular enclosed wire electrode 14 no longer is the tension force under the quiescent conditions.In addition, because when that section molybdenum filament between upper and lower guide wheel is transported silk in reciprocal two directions, the quantity of row's silk wheel, regulating wheel and the reverse wheel that drives is different, thereby make this thread delivering machine structure also want big in the more above-mentioned first kind of prior art of molybdenum filament tensile wave momentum of discharge processing district, the permanent tension force control actual effect of this technical scheme is bad for this reason, there is darker periodicity " commutation striped " on the cut workpiece surface, adopts the lathe of this thread delivering machine structure fewer and feweri at present.
The patent No. is ZL97249695.5, and the Chinese utility model patent that name is called " WEDM of symmetrical tensioning silk " discloses a kind of thread delivering machine structure, as shown in Figure 3,1 is wire storage tube, and 33 is last reverse wheel, and 34 are following reverse wheel, 35 is the rope reverse wheel, and 8 is the tensioner arm platform, and 92 is last regulating wheel, 91 are following regulating wheel, and 10 is tensioner arm, and 14 is annular enclosed wire electrode, 152 is that upper block, 151 is lower tumbler, and 19 is column, and 21 is weight, 24 is the horizontal guide rail pair, and 25 is rope.Analyse this weight with the physical motion credit and draw the mechanism of the tensioner arm motion of horizontal positioned through rope, come in the upper and lower motion of weight under " pine silk " and " tight silk " two kinds of situations, the acceleration that tensioner arm is moved is different.This mechanism also belongs to the thread delivering machine structure of the static control of tension force in addition, also has the identical shortcoming of above-mentioned prior art, can not thoroughly solve the distinctive cut workpiece of to-and-fro wire-travelling type electric spark wire cutting machine surface and present the periodically chronic disease of " commutation striped ".
Summary of the invention
The utility model provides the dynamically WEDM thread delivering machine structure of control of a kind of closed loop tension force, purpose is the deficiency that solves existing several thread delivering machine structures, realization improves the surface quality of processing characteristics, machining accuracy and the cut workpiece of reciprocal high speed travelling wire type WEDM to the dynamic precision control of wire electrode tension.
For achieving the above object, the technical solution adopted in the utility model is: a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically, the upper and lower guide wheel that comprises ring seal wire electrode, wire storage tube and be respectively in the upper and lower coil holder of wire cutting machine end, also comprise first communtation arm and second communtation arm vertically arranging and be parallel to each other, this first communtation arm is slidingly connected with the column along continuous straight runs of the relative wire cutting machine of second communtation arm, and the symmetrical center line up and down of first communtation arm and second communtation arm coincides; The described wire storage tube and second communtation arm are that the boundary is respectively in both sides with the first communtation arm axis; In described first communtation arm and second communtation arm, one by motor-driven, and another person is resisted against on the fixing power sensor of a relative wire cutting machine column, perhaps is connected with the column of wire cutting machine through a power sensor; The described first communtation arm two end supports has upper and lower first reverse wheel, and the described second communtation arm two end supports has upper and lower second reverse wheel, and the distance between this upper and lower second reverse wheel is less than the distance between upper and lower first reverse wheel; Described ring seal wire electrode is to drag the half-turn wire electrode of drawing sealing from numerous wire electrode circle circles that twine on the wire storage tube surface, first after last second reverse wheel, last first reverse wheel, upper block, lower tumbler, first reverse wheel, second reverse wheel down down, being back to wire storage tube at last powers in the former circle circle of polar filament, and the signal that described power sensor (5) is gathered is used to control described motor (16) output after handling amplification via a closed control circuit, constitutes the dynamically thread delivering machine structure of control of closed loop tension force with this.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the column along continuous straight runs of wire cutting machine is provided with the upper and lower guide rail that is parallel to each other, and which is provided with two pairs of slide blocks of slip, and these two pairs of slide blocks are fixedlyed connected with second communtation arm with described first communtation arm respectively.
2, in the such scheme, the column along continuous straight runs of wire cutting machine is provided with a straight line guide rail, which is provided with two slide blocks of slip, and these two slide blocks are fixedlyed connected with second communtation arm with described first communtation arm respectively.
3, in the such scheme, be provided with the 3rd reverse wheel directly over described last first reverse wheel, column of the relative wire cutting machine of the 3rd reverse wheel vertically is slidingly connected and by shift fork location on this; Described ring seal wire electrode is to drag the half-turn wire electrode of drawing sealing from numerous wire electrode circle circles that twine on the wire storage tube surface, first after last second reverse wheel, last first reverse wheel, last the 3rd reverse wheel, upper block, lower tumbler, first reverse wheel, second reverse wheel down down, be back to wire storage tube at last and power in the former circle circle of polar filament, constitute the dynamically thread delivering machine structure of control of closed loop tension force with this.
4, in the such scheme, described motor is linear electric motors.
5, in the such scheme, described motor is a servomotor, and this servomotor, is in transmission connection with first communtation arm or second communtation arm with after leading screw, nut are connected by the parts that are in transmission connection again.
6, in the such scheme, described upper and lower guide rail and two pairs of slide blocks are two groups of line slideway auxiliaries that comprise ball spline, driven bearing peace face roller bearing.
7, in the such scheme, described upper and lower guide rail and the two group cylindrical rolling linear guide pin bushing pairs of two pairs of slide blocks for forming by two axis of guides and two pairs of linear bushings (being called the self-loopa ball bearing guide bushing again).
8, in the such scheme, a described straight line guide rail and two slide blocks are one group of line slideway auxiliary that comprises ball spline, driven bearing peace face roller bearing.
9, in the such scheme, the tension force of ring seal wire electrode through reverse wheel (on, down first reverse wheel or on, following second reverse wheel), communtation arm (first communtation arm or second communtation arm) is applied on the power sensor that is fixed on column, the power sensor converts the tension force of ring seal wire electrode to electric quantity signal, handle and amplification through electronic circuit, the control motor, via leading screw, nut and communtation arm (second communtation arm or first communtation arm) and then control reverse wheel (on, down second reverse wheel or on, moving following first reverse wheel), adjustment is dragged the length of drawing annular enclosed wire electrode from wire storage tube, utilizes the strain of wire electrode to adjust its tension force; Adjusted tension force is handled and amplification to electronic circuit through the power sensor feedback again, controls motor once more, thereby realizes WEDM wire electrode tension closed-loop dynamic is controlled within the scope of a setting.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the reaction time of the utility model mechanism is within several milliseconds, and the processing speed of electronic circuit approximately is 1000 times of mechanism's reaction speed, employing is by the electromechanical integration technology scheme of power sensor and motor closed-loop control wire electrode tension, can realize the dynamic constant control of wire electrode tension, it is compared with the static permanent tension control technology scheme of existing several employings, can control by the permanent tension force of more effective realization wire electrode under motion conditions, thereby improve the stability of reciprocal high speed travelling wire type WEDM Pulse Electric spark discharge processing, solve this type of lathe and cause the cut workpiece surface the periodically chronic disease of " commutation striped " to occur by the wire electrode tension cyclically-varying.
2, since the electronic circuit of thread delivering machine structure of the present utility model can also realize with WEDM supporting digital control computer carry out communication, thereby can realize the size of wire electrode tension is controlled in real time, on homemade to-and-fro wire-travelling type electric spark linear cutting machine, can implementation of class like the external employed advanced processing technology of unidirectional low-speed wire cutting type WEDM of producing: handle at for example computer-controlled cutting profile turning, automatically increase wire electrode tension in cutting profile corner, to improve owing to the Pulse Electric spark line electrode that discharge with explosion produces in working solution lags behind the corner's contour distortion that causes; When the correction cutting of adopting repeatedly cutting technique and refine cutting, the utility model can be realized the computer programming control of wire electrode tension, heightens wire electrode tension automatically; Thereby improve the cutting processing precision and the cut workpiece surface quality of homemade reciprocal high speed travelling wire type WEDM largely.
Description of drawings
Accompanying drawing 1 is the thread delivering machine structure schematic diagram of the manual pretension wire electrode of prior art;
Accompanying drawing 2 is the permanent tension force thread delivering machine of a prior art Weight type structure schematic diagram;
Accompanying drawing 3 is a prior art symmetry tensioning thread feed electric spark wire cutting machine schematic diagram;
Accompanying drawing 4 is dynamically WEDM thread delivering machine structure embodiment one schematic diagram of control of the utility model closed loop tension force;
Accompanying drawing 5 is dynamically WEDM thread delivering machine structure embodiment two schematic diagrames of control of the utility model closed loop tension force;
Accompanying drawing 6 is dynamically WEDM thread delivering machine structure embodiment three schematic diagrames of control of the utility model closed loop tension force;
Accompanying drawing 7 is dynamically WEDM thread delivering machine structure embodiment four schematic diagrames of control of the utility model closed loop tension force;
Accompanying drawing 8 is that the A of accompanying drawing 7 is to cross-sectional schematic;
Accompanying drawing 9 is the utility model schematic diagram (the power sensor is against being provided with);
Accompanying drawing 10 is the utility model schematic diagram (first communtation arm is connected with column by the power sensor).
1, wire storage tube; 2, shift fork; 31, left reverse wheel; 32, right reverse wheel; 33, go up reverse wheel; 34, following reverse wheel; 35 is the rope reverse wheel; 36, last first reverse wheel; 37, following first reverse wheel; 38, last second reverse wheel; 39, following second reverse wheel; 40, last the 3rd reverse wheel; 41, first communtation arm; 42, second communtation arm; 5, power sensor; 6, leading screw; 7, nut; 8, tensioner arm platform; 9, regulating wheel; 91, following regulating wheel; 92 is last regulating wheel; 10, tensioner arm; 111 upper rails; 112, lower guideway; 113, a straight line guide rail; 13, go up coil holder; 14, annular enclosed wire electrode; 151, lower tumbler; 152, upper block; 16, motor; 17, spark discharge processing district; 18, following coil holder; 19, column; 201, the first communtation arm platform; 202, the second communtation arm platform; 21, weight; 221, row's silk is taken turns down; 222, the row's of going up silk wheel; 23, vertical guide rail pair; 24, horizontal guide rail pair; 25, rope.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically
Shown in accompanying drawing 4, a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically, by wire storage tube 1, column 19, last first reverse wheel 36, following first reverse wheel 37, first communtation arm 41, the first communtation arm platform 201, power sensor 5, last second reverse wheel 38, following second reverse wheel 39, second communtation arm 42, the second communtation arm platform 202, motor 16, leading screw 6, nut 7, upper rail 111, lower guideway 112, upper block 152, lower tumbler 151, annular enclosed wire electrode 14, last coil holder 13 and following coil holder 18 are formed.
In this scheme, last first reverse wheel 36, following first reverse wheel 37, last second reverse wheel 38, following second reverse wheel 39 and lower tumbler 151 are positioned at same plane.And last first reverse wheel 36 and last second reverse wheel 38 are respectively with first reverse wheel 37 and second reverse wheel, 39 axial symmetry settings down down.Upper block 152 is arranged on the leading section of coil holder 13, and lower tumbler 151 is arranged on down the leading section of coil holder 18.
Also be provided with first communtation arm 41 and second communtation arm 42 vertically arranging and be parallel to each other, this first communtation arm 41 is slidingly connected with column 19 along continuous straight runs of second communtation arm, 42 relative wire cutting machines.Be specially: level is installed guide rail 111 and lower guideway pays 112 on the guide rail installation base surface in the front of column 19, and they all adopt line slideway.First communtation arm 41 is fixed on the first communtation arm platform 201, the first communtation arm platform 201 is fixed on a pair of slide block in the left side of upper rail 111, lower guideway 112, the variation that makes the first communtation arm platform 201 follow wire electrode tension is limited to and moves horizontally, and keeps with horizontal direction compressing power sensor 5.Second communtation arm 42 is fixed on the second communtation arm platform 202, and the second communtation arm platform 202 is fixed on a pair of slide block in the right of upper rail 111, lower guideway 112.And the symmetrical center line up and down of first communtation arm 41 and second communtation arm 42 coincides.The described wire storage tube 1 and second communtation arm 42 are that the boundary is respectively in both sides with first communtation arm, 41 axis.Described first communtation arm 41 is resisted against the power sensor 5 (as shown in Figure 9) that a relative wire cutting machine column 19 is fixed, and second communtation arm 42 is driven by motor 16.Motor 16 adopts low power AC servo motor, and this motor 16 is fixed on the inside of column 19, and its shaft extension goes out the right flank of column 19, and the output shaft axial line of motor 16 is parallel with the axis of nut 7 with leading screw 6, and leading screw 6 and nut 7 adopt a pair of ball screw assembly.Drive disk assembly adopts one group of gap gear that disappears of 1: 4, and pinion is fixed on the output shaft axle of AC servo motor, and gear wheel is fixed on the axle head of ball-screw 6.Ball nut 7 is fixed on the second communtation arm platform 202, AC servo motor 16 is connected with ball-screw 6 through drive disk assembly (one group of gap gear that disappears), AC servo motor moves horizontally along upper rail 111, lower guideway 112 synchronously by drive disk assembly, leading screw 6, nut 7, the second communtation arm platform 202 and last second reverse wheel 38 of second communtation arm, 42 controls, following second reverse wheel 39, drag the girth of drawing annular enclosed wire electrode 14 to adjust from wire storage tube, utilize the strain of wire electrode dynamically to adjust its tension force.
First communtation arm, 41 two end supports have last first reverse wheel 36, following first reverse wheel 37, described second communtation arm, 42 two end supports have last second reverse wheel 38, following second reverse wheel 39, and the distance on this between second reverse wheel 38, following second reverse wheel 39 is less than the distance between last first reverse wheel 36, following first reverse wheel 37.Wire electrode is dragged numerous wire electrode circle circles from wire storage tube 1 and is drawn annular enclosed half-turn wire electrode, successively twined last second reverse wheel 38, last first reverse wheel 36 and upper block 152 to spark discharge processing district 17, again through lower tumbler 151, down first reverse wheel 37 and down second reverse wheel 39 return in the former circle circle of wire electrode on the wire storage tube 1. when reverse fortune silk, then the wire electrode inverted sequence is by above-mentioned each component movement.
During the fortune silk, annular enclosed wire electrode 14 tension force are through last first reverse wheel 36, first reverse wheel 37, first communtation arm 41 and the first communtation arm platform 201 are applied on the power sensor 5 that is fixed on column 19 down, power sensor 5 converts the tension force of annular enclosed wire electrode 14 to electric quantity signal, handles and amplification control AC servo motor 16 through electronic circuit.AC servo motor 16 is in transmission connection through a pair of clearance elimination gear and leading screw 6, the rotation of leading screw 6 changes the rectilinear motion of the nut of establishing thereon 7 into, thereby controlling the second communtation arm platform 202 and second communtation arm 42 slides with respect to column 19 along continuous straight runs along upper rail 111, lower guideway 112, and then control upper and lower second reverse wheel, 38,39 along continuous straight runs and move, adjustment is dragged the length of drawing annular enclosed wire electrode 14 from wire storage tube 1, utilizes the strain of wire electrode to adjust its tension force; Adjusted tension force feeds back to electronic circuit processing and amplification through power sensor 5 again, controls AC servo motor 16 once more, thereby realizes WEDM wire electrode tension closed-loop dynamic is controlled within the scope of a setting.
Embodiment two: a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically
As shown in Figure 5, this embodiment is with the different of first embodiment: in the scheme of above-mentioned first embodiment, be provided with the 3rd reverse wheel 40 directly over last first reverse wheel 36, and fix a shift fork 2 at the Far Left of last coil holder 13; Those newly-increased last the 3rd reverse wheel 40 embeddings are enclosed in the chute (this chute vertically is provided with) of first communtation arm, 41 tops, and insert simultaneously in the shift fork 2, the position of newly-increased last the 3rd reverse wheel 40 in the vertical directions is subjected to this shift fork 2 controls, being somebody's turn to do last the 3rd reverse wheel 40 and upper block 152 like this can move up and down synchronously with the lifting of last coil holder 13, to adapt to the needs that cut higher workpiece.Last first reverse wheel 36, following first reverse wheel 37, last second reverse wheel 38, following second reverse wheel 39, last the 3rd reverse wheel 40 and lower tumbler 151 are positioned at same plane.Wire electrode is dragged the half-turn wire electrode of drawing sealing numerous wire electrode circle circles from wire storage tube 1, successively twined last second reverse wheel 38, last first reverse wheel 36, last the 3rd reverse wheel 40 and upper block 152 to spark discharge processing district 17, again through lower tumbler 151, down first reverse wheel 37 and down second reverse wheel 39 return in the former circle circle of wire electrode on the wire storage tube 1.When oppositely transporting silk, then the wire electrode inverted sequence is by above-mentioned each component movement.
Embodiment three: a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically
As shown in Figure 6, this embodiment is with the different of first embodiment: second communtation arm 42 is connected (as shown in Figure 10) through power sensor 5 with the column 19 of wire cutting machine.First communtation arm 41 is driven by motor 16, and the first reverse wheel arm 41 and the second reverse wheel arm directly are fixed on respectively on the left and right a pair of upper and lower slide block of upper rail 111 and lower guideway 112.The output shaft axial line of motor 16 is parallel with the axis of nut 7 with leading screw 6, and leading screw 6 and nut 7 adopt a pair of ball screw assembly.Motor 16 is in transmission connection with leading screw 6, and the nut 7 and first communtation arm 41 are affixed.In this technical scheme, the first communtation arm platform 201 and the second communtation arm platform 202 have been omitted.The function mode of whole thread delivering machine structure is constant.
Embodiment four: a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically
Shown in accompanying drawing 7 and accompanying drawing 8, this embodiment is with the different of first embodiment: first embodiment adopts upper rail 111 and lower guideway 112 second mate's guide rails, changes in the present embodiment adopting one group by a line slideway 113 and two line slideway auxiliaries that slide block is formed; Drive disk assembly is by a pair of synchronous pulley and one group of synchromesh gear band assembly that synchronous toothed belt is formed, to adapt to the situation of big spacing between motor and the leading screw.
Embodiment five: a kind of closed loop tension force is the WEDM thread delivering machine structure of control dynamically
This embodiment is with the different of first embodiment: drive disk assembly is a shaft coupling between motor 16 and the leading screw 6.
In the foregoing description, motor 16, leading screw 6 and nut 7 can substitute with response frequency higher one group of rectilinear motion servomotor or one group of rectilinear motion motor.Because the driving-chain of rectilinear motion servomotor or rectilinear motion motor (linear electric motors) frequency response speed short, reaction is faster, dynamically control is better will to make thread delivering machine structure closed loop tension force, but manufacturing cost increases.
Accompanying drawing 9 is a schematic diagram of the present utility model, an end of power sensor 5 is resisted against on first communtation arm 41 and is provided with among the figure, the other end of power sensor 5 is fixedly installed on the column 19, the tension force of annular enclosed wire electrode 14 is applied on the power sensor 5 through last first reverse wheel 36, following first reverse wheel 37, first communtation arm 41; Motor 16 moves to adjust the girth of annular enclosed wire electrode 14 as horizontal direction by drive disk assembly, leading screw 6, nut 7 and last second reverse wheel 38 of second communtation arm, 42 controls, following second reverse wheel 39, utilizes the strain of wire electrode dynamically to adjust its tension force.
Accompanying drawing 10 is a schematic diagram of the present utility model, and it only is with the different of accompanying drawing 9: first communtation arm 41 is connected setting by power sensor 5 with column 19.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (6)
1. the dynamic WEDM thread delivering machine structure of control of a closed loop tension force, comprise ring seal wire electrode (14), wire storage tube (1) and laying respectively on the wire cutting machine, following coil holder (13,18) end on, lower tumbler (152,151), it is characterized in that: also comprise first communtation arm (41) and second communtation arm (42) vertically arranging and be parallel to each other, column (19) along continuous straight runs of this first communtation arm (41) and the relative wire cutting machine of second communtation arm (42) is slidingly connected, and the symmetrical center line up and down of first communtation arm (41) and second communtation arm (42) coincides; Described wire storage tube (1) and second communtation arm (42) are that the boundary is respectively in both sides with first communtation arm (41) axis; In described first communtation arm (41) and second communtation arm (42), one are driven by motor (16), another person is resisted against on the fixing power sensor (5) of a relative wire cutting machine column (19), perhaps is connected with the column (19) of wire cutting machine through a power sensor (5); Described first communtation arm (41) two end supports has upper and lower first reverse wheel (36,37), described second communtation arm (42) two end supports has upper and lower second reverse wheel (38,39), distance between this upper and lower second reverse wheel (38,39) is less than the distance between upper and lower first reverse wheel (36,37); Described ring seal wire electrode (14) is from wire storage tube (1), earlier after last second reverse wheel (38), last first reverse wheel (36), upper block (152), lower tumbler (151), down first reverse wheel (37), descend second reverse wheel (39), be back to wire storage tube (1) more at last; And the signal that described power sensor (5) is gathered is used to control described motor (16) output after handling amplification via a closed control circuit, constitutes the dynamically thread delivering machine structure of control of closed loop tension force with this.
2. closed loop tension force according to claim 1 is the WEDM thread delivering machine structure of control dynamically, it is characterized in that: the column of wire cutting machine (19) along continuous straight runs is provided with the upper and lower guide rail (111,112) that is parallel to each other, which is provided with two pairs of slide blocks of slip, these two pairs of slide blocks are fixedlyed connected with second communtation arm (42) with described first communtation arm (41) respectively.
3. closed loop tension force according to claim 1 is the WEDM thread delivering machine structure of control dynamically, it is characterized in that: the column of wire cutting machine (19) along continuous straight runs is provided with a line slideway (113), which is provided with two slide blocks of slip, these two slide blocks are fixedlyed connected with second communtation arm (42) with described first communtation arm (41) respectively.
4. closed loop tension force according to claim 1 is the WEDM thread delivering machine structure of control dynamically, it is characterized in that: be provided with the 3rd reverse wheel (40) directly over described last first reverse wheel (36), the 3rd reverse wheel (40) column (19) of wire cutting machine relatively vertically is slidingly connected and locatees by a shift fork (2); Described ring seal wire electrode is from wire storage tube (1), first after last second reverse wheel (38), last first reverse wheel (36), last the 3rd reverse wheel (40), upper block (152), lower tumbler (151), first reverse wheel (37), second reverse wheel (39) down down, be back to wire storage tube (1) at last again, constitute the dynamically thread delivering machine structure of control of closed loop tension force with this.
5. closed loop tension force according to claim 1 is the WEDM thread delivering machine structure of control dynamically, and it is characterized in that: described motor (16) is linear electric motors.
6. closed loop tension force according to claim 1 is the WEDM thread delivering machine structure of control dynamically, it is characterized in that: described motor (16) is a servomotor, and this servomotor is in transmission connection by leading screw (6) nut (7) and first communtation arm (41) or second communtation arm (42).
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| CN2009202348875U CN201493578U (en) | 2009-08-12 | 2009-08-12 | Closed-loop tension dynamically controlled wire-moving mechanism of electric spark wire cutting machine |
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| CN2009202348875U CN201493578U (en) | 2009-08-12 | 2009-08-12 | Closed-loop tension dynamically controlled wire-moving mechanism of electric spark wire cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102069244A (en) * | 2011-01-31 | 2011-05-25 | 杭州台业机械设备有限公司 | Numerical control medium-speed wire cut electrical discharge machine |
| CN102081374A (en) * | 2010-12-14 | 2011-06-01 | 东南大学 | Automatic control system for surface process treatment |
| CN103495781A (en) * | 2013-09-05 | 2014-01-08 | 中原工学院 | Composite tension control system used for linear cutting machine |
| CN104070248A (en) * | 2014-07-07 | 2014-10-01 | 李冬庆 | Wire-cut electric discharge machine wire transport mechanism capable of realizing accurate closed-loop control on tension of electrode wire |
| CN104339046A (en) * | 2014-10-28 | 2015-02-11 | 苏州市宝玛数控设备有限公司 | Wire cut electrical discharge machining mechanism capable of stably conveying wires |
| CN104339047A (en) * | 2014-11-06 | 2015-02-11 | 苏州市宝玛数控设备有限公司 | High-precision wire moving mechanism |
| CN106141345A (en) * | 2016-08-26 | 2016-11-23 | 浙江顺联智能设备有限公司 | Diamond wire wire cutting machine |
| CN107052479A (en) * | 2017-05-11 | 2017-08-18 | 广东工业大学 | A kind of guide frame is liftable inverted to exempt to wear thread feed electric spark cutting processing device |
| CN107570823A (en) * | 2017-09-04 | 2018-01-12 | 哈尔滨理工大学 | A kind of Wire Electrode WEDM spiral tightening regulator |
| CN108098090A (en) * | 2018-01-31 | 2018-06-01 | 顾元章 | A kind of identical tension wire transporting device and force measuring method |
| CN109128409A (en) * | 2018-10-30 | 2019-01-04 | 南京航空航天大学无锡研究院 | A kind of Wire EDM second-level tension control device |
| CN110524074A (en) * | 2019-04-30 | 2019-12-03 | 江苏三星机械制造有限公司 | Wire Electrode WEDM variable tension regulating mechanism |
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2009
- 2009-08-12 CN CN2009202348875U patent/CN201493578U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081374A (en) * | 2010-12-14 | 2011-06-01 | 东南大学 | Automatic control system for surface process treatment |
| CN102081374B (en) * | 2010-12-14 | 2012-07-18 | 东南大学 | Automatic control system for surface process treatment |
| CN102069244A (en) * | 2011-01-31 | 2011-05-25 | 杭州台业机械设备有限公司 | Numerical control medium-speed wire cut electrical discharge machine |
| CN102069244B (en) * | 2011-01-31 | 2012-11-14 | 杭州台业机械设备有限公司 | Numerical control medium-speed wire cut electrical discharge machine |
| CN103495781A (en) * | 2013-09-05 | 2014-01-08 | 中原工学院 | Composite tension control system used for linear cutting machine |
| CN104070248B (en) * | 2014-07-07 | 2018-06-19 | 李冬庆 | A kind of electric spark wire cutting machine Wire-conveying mechanism of quick walk of accurate closed-loop control wire electrode tension |
| CN104070248A (en) * | 2014-07-07 | 2014-10-01 | 李冬庆 | Wire-cut electric discharge machine wire transport mechanism capable of realizing accurate closed-loop control on tension of electrode wire |
| CN104339046A (en) * | 2014-10-28 | 2015-02-11 | 苏州市宝玛数控设备有限公司 | Wire cut electrical discharge machining mechanism capable of stably conveying wires |
| CN104339047A (en) * | 2014-11-06 | 2015-02-11 | 苏州市宝玛数控设备有限公司 | High-precision wire moving mechanism |
| CN106141345A (en) * | 2016-08-26 | 2016-11-23 | 浙江顺联智能设备有限公司 | Diamond wire wire cutting machine |
| CN107052479A (en) * | 2017-05-11 | 2017-08-18 | 广东工业大学 | A kind of guide frame is liftable inverted to exempt to wear thread feed electric spark cutting processing device |
| CN107052479B (en) * | 2017-05-11 | 2019-02-15 | 广东工业大学 | A kind of guide frame is liftable inverted to exempt to wear thread feed electric spark cutting processing device |
| CN107570823A (en) * | 2017-09-04 | 2018-01-12 | 哈尔滨理工大学 | A kind of Wire Electrode WEDM spiral tightening regulator |
| CN108098090A (en) * | 2018-01-31 | 2018-06-01 | 顾元章 | A kind of identical tension wire transporting device and force measuring method |
| CN108098090B (en) * | 2018-01-31 | 2019-09-17 | 顾元章 | A kind of identical tension wire transporting device and force measuring method |
| CN109128409A (en) * | 2018-10-30 | 2019-01-04 | 南京航空航天大学无锡研究院 | A kind of Wire EDM second-level tension control device |
| CN110524074A (en) * | 2019-04-30 | 2019-12-03 | 江苏三星机械制造有限公司 | Wire Electrode WEDM variable tension regulating mechanism |
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