CN103949736B - A kind of wire feeder of wire cutting machine and method - Google Patents
A kind of wire feeder of wire cutting machine and method Download PDFInfo
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- CN103949736B CN103949736B CN201410152639.1A CN201410152639A CN103949736B CN 103949736 B CN103949736 B CN 103949736B CN 201410152639 A CN201410152639 A CN 201410152639A CN 103949736 B CN103949736 B CN 103949736B
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Abstract
The invention discloses a kind of wire feeder and method of wire cutting machine, wire feeder comprises base plate, wire storage cylinder, the first directive wheel, the second directive wheel, the 3rd directive wheel, the 4th directive wheel and wire electrode, on described base plate, be provided with track-type facilities, assembly pulley tensioning apparatus, stroke of tension nameplate and pointer, assembly pulley tensioning apparatus comprises balancing weight, fixed pulley group, running block, running block fixed head and track-type facilities limited block, track-type facilities comprises guide rail and slide block, fixed pulley group, guide rail, stroke of tension nameplate and track-type facilities limited block are fixed on base plate, running block, balancing weight and pointer are fixed on running block fixed head, running block fixed head is fixed on the slide block of track-type facilities, slide block is placed on guide rail, slide along guide rail, track-type facilities limited block is placed in the lower end of guide rail, the present invention is simple in structure, easily manufactured, and cost is lower, meanwhile, can improve preferably machining accuracy and the working (machining) efficiency of line cutting, and economic benefit is higher.
Description
Technical field
The present invention relates to wire cutting machine tool field, relate in particular to wire feeder and the method for the permanent tension force of a kind of wire cutting machine.
Background technology
Wire cutting machine is a kind of numerical control machine that utilizes wire electrode to move back and forth the mode of the logical electric discharge of electric conductor is processedBed, in process, wire electrode need to move back and forth and be beneficial to heat radiation and get rid of processing waste, therefore, wire feeder pairSurperficial precision and the size of processing work have a direct impact. Traditional wire feeder, because wire electrode discharge and self are stressedEffect, wire electrode can relax, and directly affects the tensile force of wire electrode, causes wire electrode discontinuity, thereby causes electrodeSilk produces distortion, affects the roughness that shows of processing work, affects machining accuracy; At present, to walking in wire cutting machine runningThe existing a lot of methods of solution of the permanent tension force of silk, but the constant tension wire-walking mechanism structure of large multi-line cutting machine is more complicated, orElectromechanical Control is had relatively high expectations, make manufacture more complicated, cost is higher; Although Weight type constant tension wire-walking method is simple in structure,Because the inertia of balancing weight is larger, cause in running the initial tension of wire electrode excessive, easily cause showing that wire electrode breaksResemble. Meanwhile, at present strainer due to wire electrode can tensioning maximum length shorter, in cutting on line process,When wire cutting machine tool need to up or down when regulating frame head, often need the wire electrode that first comes loose, along Z-direction along Z-directionRegulate after head up or down, more again install, operation is not only wasted time and energy like this, and needs certain professional skillCan just can complete, have a strong impact on the working (machining) efficiency of middle wire-moving cutting.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of wire feeder and method of wire cutting machine is provided.
The object of the invention is to be achieved through the following technical solutions: a kind of wire feeder of wire cutting machine, comprising: the endPlate, wire storage cylinder, the first directive wheel, the second directive wheel, the 3rd directive wheel, the 4th directive wheel and wire electrode, arrange on described base plateHave track-type facilities, assembly pulley tensioning apparatus, stroke of tension nameplate and pointer, described assembly pulley tensioning apparatus comprise balancing weight,Fixed pulley group, running block, running block fixed head and track-type facilities limited block, described track-type facilities comprises guide rail and slide block,Described fixed pulley group, guide rail, stroke of tension nameplate and track-type facilities limited block are fixed on base plate, described running block, joinPouring weight and pointer are fixed on running block fixed head, and described running block fixed head is fixed on the slide block of track-type facilities, instituteState slide block and be placed on guide rail, slide along guide rail, track-type facilities limited block is placed in the lower end of guide rail.
Further, described fixed pulley group comprises the first fixed pulley and the second fixed pulley, and described running block comprises firstMovable pulley and the second movable pulley.
A wire-walking method for wire cutting machine, comprises the following steps:
(1) wire electrode is worn successively around the 4th directive wheel, the first fixed pulley, the second movable pulley, the second fixed pulley, firstOn movable pulley, the first directive wheel;
(2) regulate wire electrode to make, after the correct position of pointed stroke of tension nameplate, wire electrode two ends are fixed on to storageSilk cylinder is upper, carrys out back rotation wire storage cylinder, after making wire electrode wire transporting evenly.
The invention has the beneficial effects as follows: permanent tension force strainer of the present invention is simple and reliable for structure, low cost of manufacture, sexual valenceThan high, compare with common Weight type constant force device, owing to adopting assembly pulley effort-saving mechanism, the inertia of balancing weight is less, has solvedThe excessive problem of the initial tension of wire electrode in running, the phenomenon of having avoided wire electrode to break. Meanwhile, move at massIn the constant situation of speed, the tensioning speed of assembly pulley two end electrodes silk is doubled, and makes this constant tension wire-walking mechanism canThere is the shorter tensioning response time, there is better dynamic stability for the tensioning of wire electrode, be more conducive to reduce wire electrodeShake in motion process, can improve the processing environment of wire electrode, improves precision and the efficiency of processing; Meanwhile, due to employingPulley block mechanism, can have better pardon to the variation of wire electrode length in process again, and wire electrode length is becomeChange measurer and have better anti-overload ability; Because the weight of balancing weight can regulate according to actual processing conditions, therefore, thisThe wire feeder of the wire cutting machine of invention can meet the needs to the permanent tension lines cutting processing of difference preferably.
Brief description of the drawings
Fig. 1 is the present invention's one angle structural perspective;
Fig. 2 is another angle structural perspective of the present invention;
Fig. 3 is general illustration of the present invention;
Fig. 4 is partial schematic diagram of the present invention;
In figure, fixed pulley group 11, the first fixed pulley 111, the second fixed pulley 112, running block 12, the first movable pulley 121,The second movable pulley 122, running block fixed head 13, balancing weight 14, track-type facilities 15, track-type facilities limited block 16, stroke of tensionSign Board 17, pointer 18, the first directive wheel 2, wire storage cylinder 3, the second directive wheel 4, workpiece 5, the 3rd directive wheel 6, wire electrode 7,Four directive wheels 8, base plate 9.
Detailed description of the invention
Referring to accompanying drawing, the invention will be further described.
With reference to Fig. 1-Fig. 3, the wire feeder of a kind of wire cutting machine of the present invention, comprises base plate 9, wire storage cylinder 3, the first directive wheel2, the second directive wheel 4, the 3rd directive wheel 6, the 4th directive wheel 8 and wire electrode 7, described base plate 9 is provided with track-type facilities 15, pulleyGroup tensioning apparatus, stroke of tension nameplate 17 and pointer 18, described assembly pulley tensioning apparatus comprises balancing weight 14, fixed pulley group11, running block 12, running block fixed head 13 and track-type facilities limited block 16, described track-type facilities 15 comprises guide rail and slide block(not shown), fixed pulley group 11 is fixed on base plate 9, and running block 12 and balancing weight 14 are fixed on running block fixed headOn 13, running block fixed head 13 is fixed on the slide block of track-type facilities 15, and slide block is placed on guide rail, slides along guide rail.
The fixed pulley number comprising in described fixed pulley group 11 can increase according to actual needs or reduce, described moving cunningThe movable pulley number that wheels 12 comprise also can increase according to actual needs or reduce, and preferential selection determines to slide in the present embodimentIn wheels 11, comprise two fixed pulleys: the first fixed pulley 111 and the second fixed pulley 112 comprise two and move in running block 12Pulley: the first movable pulley 121 and the second movable pulley 122.
Described balancing weight 14 can dismounting, and the weight of balancing weight 14 can be exchanged according to actual needs.
Described wire electrode 7 is worn successively around the 4th directive wheel 8, the first fixed pulley 111, the second movable pulley 122, the second fixed cunningOn wheel 112, the first movable pulley 121, the first directive wheel 2; For fear of wire electrode 7 at spatial intersecting, the first movable pulley 121 andOne directive wheel 2 is in the same plane, the 4th directive wheel 8, the first fixed pulley 111, the second fixed pulley 112 and the second movable pulley122 are positioned at another plane, leave gap surplus between two planes.
The course of work of the present invention is as follows: wire electrode 7 can by usual way silk, by wire electrode 7 wear successively aroundThe 4th directive wheel 8, the first fixed pulley 111, the second movable pulley 122, the second fixed pulley 112, the first movable pulley 121, the first guidingOn wheel 2, regulate wire electrode 7 that pointer 18 is pointed to after the correct position of stroke of tension nameplate 17 and (conventionally elect tensioning apparatus asUpper edge, can utilize the stroke of tensioning apparatus so to greatest extent, but tensioning apparatus stroke of tension of the present invention is larger, canSelect centre position, conveniently regulate up or down wire cutting machine head along Z-direction later), wire electrode 7 two ends are fixed on to storageOn silk cylinder 3, carry out back rotation wire storage cylinder 3, after making wire electrode wire transporting evenly.
When wire electrode 7 is during in the unconverted state of length, wire electrode 7 is stressed evenly, and assembly pulley tensioning apparatus is in movingIn state poised state; When because outside cause is when wire electrode 7 length are when elongated, electricity between the 4th directive wheel 8 and the first directive wheel 2Polar filament 7 discontinuity, now, running block 12, because gravitate moves downward, pulls wire electrode 7 to move downward, whenWhen the 4th directive wheel 8 equates with the first directive wheel 2 two end electrodes silk 7 tensile forces, assembly pulley tensioning apparatus returns again in new positionMultiple dynamic balance state.
In the time that wire cutting machine head need to regulate up or down along Z axis, because tensioning apparatus stroke of tension is larger,Within the scope of stroke of tension, only need regulate wire cutting machine head to correct position along Z axis up or down according to actual requirement.
In order to set forth better advantage of the present invention, describe in conjunction with Fig. 4, suppose: running block 12 moves up and downStroke is L, and between the first directive wheel 2 and the 4th directive wheel 8, the length variations amount of wire electrode 7 is S, near electricity the first directive wheel 2Polar filament 7 movement velocitys are V1, and near the 4th directive wheel 8, wire electrode 7 movement velocitys are V2, and movable pulley number is that n(n is not less than 1),The acceleration of balancing weight 14 is a1, and wire electrode is upheld or tension acceleration is a2, has:
a1=a2/2n;n>1;
Because a1 is much smaller than a2, the general gravity takeup of comparing, the present invention can effectively slow down wire electrode 7 at the beginning ofTension force, reduces the infringement to wire electrode 7; The peak acceleration moving downward due to balancing weight 14 and movable pulley is g, so thisThe very big acceleration of instant response of bright permanent tension tightening device is 2ng(n=2 in this device as shown in the figure, the wink of this tensioning apparatusBetween to respond very big acceleration be 4g, much larger than the very big acceleration of instant response of existing general permanent tension tightening device), byAcceleration Formula:
Acceleration a=V/t=V1-V2/t is known,
The Weight type perseverance of comparing tension force tensioning wire feeder, this perseverance tension force strainer has the response time of tensioning faster,There is better dynamic stability for the tensioning of wire electrode 7, be more conducive to reduce the shake in wire electrode 7 motion processes, carryPrecision and the efficiency of high processing; Meanwhile, by S=2nL > L(n is not less than 1) know, owing to adopting pulley block mechanism, can be to processingIn journey, the variation of wire electrode 7 length has better pardon, and wire electrode 7 length variations measurers are had to better anti-overload ability(suppose that direction board range is 0.4m, calculate according to n=2 in preferred embodiment, apparatus of the present invention are opened the maximum of wire electrodeTight limit is 1.6m).
The above embodiment has only expressed several embodiment of the present invention, and it is described comparatively in detail and be concrete, but alsoCan not be interpreted as the restriction to the scope of the claims of the present invention, it should be pointed out that for the person of ordinary skill of the art,Do not depart under the prerequisite of the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention,Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (3)
1. a wire feeder for wire cutting machine, comprises base plate, wire storage cylinder, the first directive wheel, the second directive wheel, the 3rd guidingWheel, the 4th directive wheel and wire electrode, is characterized in that, is provided with track-type facilities, assembly pulley tensioning apparatus, tensioning on described base plateStroke nameplate and pointer, described assembly pulley tensioning apparatus comprises that balancing weight, fixed pulley group, running block, running block fixPlate and track-type facilities limited block, described track-type facilities comprises guide rail and slide block, described fixed pulley group, guide rail, stroke of tension indicateBoard and track-type facilities limited block are fixed on base plate, and described running block, balancing weight and pointer are fixed on running block fixed headUpper, described running block fixed head is fixed on the slide block of track-type facilities, and described slide block is placed on guide rail, slides along guide rail, leadsRail device limited block is placed in the lower end of guide rail.
2. the wire feeder of wire cutting machine according to claim 1, is characterized in that, described fixed pulley group comprises that first is fixed slidingWheel and the second fixed pulley, described running block comprises the first movable pulley and the second movable pulley.
3. application rights requires a wire cutting machine wire-walking method for wire feeder described in 2, it is characterized in that, comprises following stepRapid:
(1) wire electrode is worn successively around the 4th directive wheel, the first fixed pulley, the second movable pulley, the second fixed pulley, the first moving cunningOn wheel, the first directive wheel;
(2) regulate wire electrode to make, after the correct position of pointed stroke of tension nameplate, wire electrode two ends are fixed on to wire storage cylinderUpper, carry out back rotation wire storage cylinder, after making wire electrode wire transporting evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152639.1A CN103949736B (en) | 2014-04-15 | 2014-04-15 | A kind of wire feeder of wire cutting machine and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410152639.1A CN103949736B (en) | 2014-04-15 | 2014-04-15 | A kind of wire feeder of wire cutting machine and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103949736A CN103949736A (en) | 2014-07-30 |
| CN103949736B true CN103949736B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410152639.1A Expired - Fee Related CN103949736B (en) | 2014-04-15 | 2014-04-15 | A kind of wire feeder of wire cutting machine and method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276203A (en) * | 2021-05-21 | 2021-08-20 | 吉林农业大学 | Cutting wire length and rate of tension adjusting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238105Y (en) * | 1995-12-06 | 1996-10-23 | 北京阿奇工业电子有限公司 | Wire-cutting machine electrode wire tension mechanism |
| CN101045262A (en) * | 2006-03-30 | 2007-10-03 | 发那科株式会社 | Wire electrode supply device for wire-cut electric discharge machine |
| CN200957485Y (en) * | 2006-09-14 | 2007-10-10 | 舟山市四通达模具制造有限公司 | Molybdenum-wire tightener of linear cutter |
| CN102091842A (en) * | 2011-01-10 | 2011-06-15 | 苏州市金马机械电子有限公司 | Wire electrode stretching mechanism for horizontal linear cutting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009556C2 (en) * | 2000-02-29 | 2002-08-01 | Agie Sa | Wire tensioning system for a spark erosion device |
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2014
- 2014-04-15 CN CN201410152639.1A patent/CN103949736B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2238105Y (en) * | 1995-12-06 | 1996-10-23 | 北京阿奇工业电子有限公司 | Wire-cutting machine electrode wire tension mechanism |
| CN101045262A (en) * | 2006-03-30 | 2007-10-03 | 发那科株式会社 | Wire electrode supply device for wire-cut electric discharge machine |
| CN200957485Y (en) * | 2006-09-14 | 2007-10-10 | 舟山市四通达模具制造有限公司 | Molybdenum-wire tightener of linear cutter |
| CN102091842A (en) * | 2011-01-10 | 2011-06-15 | 苏州市金马机械电子有限公司 | Wire electrode stretching mechanism for horizontal linear cutting machine |
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| Publication number | Publication date |
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| CN103949736A (en) | 2014-07-30 |
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Granted publication date: 20160518 Termination date: 20170415 |