CN103203507A - Line tension balance control devices - Google Patents
Line tension balance control devices Download PDFInfo
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- CN103203507A CN103203507A CN 201210009393 CN201210009393A CN103203507A CN 103203507 A CN103203507 A CN 103203507A CN 201210009393 CN201210009393 CN 201210009393 CN 201210009393 A CN201210009393 A CN 201210009393A CN 103203507 A CN103203507 A CN 103203507A
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- line
- linear bar
- rotating shaft
- balance control
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Abstract
The invention discloses two line tension balance control devices based on the moment balance theory. The device comprises a rotating shaft, a linear rod in the same direction and a linear rod branched in the other direction, wherein the rotating shaft is a fixed supporting point which does not move; the linear rod in the same direction is connected to the rotating shaft; one end of the linear rod branched in the other direction is connected to the rotating shaft; a line bearing object for winding a line electrode is fixedly arranged at one end of one linear rod; and a proper counter-weight is suspended on the linear rod with the line bearing object or a spring with a fixed end is connected to the linear rod branched in the other direction. Line electrode tension moment is balanced by adjusting the match between the weight of different counter-weights and torsional moment or through the elasticity moment of the spring, so that the line tension can be kept balanced according to the moment balance theory, and the function of reducing vibration caused by large fluctuation amplitude of line tension and line-outlet speed change is realized.
Description
Technical field
The present invention relates to the modular construction improvement of wire-cut electric discharge machine, specifically relate to the line tension balanced controls of line style cutter in the wire-cut electric discharge machine.
Background technology
Line style cutter at known wire-cut electric discharge machine is generally conductive line electrode, line electrode is continual running in the process of discharge processing, the tension force of line electrode must maintain in the suitable scope and keep constant as far as possible, can influence the dimensional accuracy of work piece because of the tension variation of line electrode, in the time of more need avoiding the line electrode overtension, cause broken string and processing is interrupted.
So revealers of institute such as novel patent M265149 number in known public technology such as Taiwan, novel patent M357332 number, patents of invention I257887 number, the guiding of line electrode and tenslator mainly are some roller set not of uniform size of combination, comprise as lead wheels, take-up wheels, collocation take-up driving, tension force control servo motor group, the mechanism that the line ball belt of arranging in pairs or groups is again perhaps arranged does motion such as the line sending of guide line electrode and take-up and does the tension force control of line electrode.Line tension size at line electrode in the above-mentioned known techniques can be done corresponding control.For example, Fig. 1 is the configured in one piece figure of the control line tension force roller devices of known wire-cut electric discharge machine, as shown in fig. 1, one outlet roller, 10 lifting-line electrodes 50 are reeled bundled, and outlet to the first guide wheel 12 places, between line electrode 50 pile warp line tension rollers 30 and adjacent second guide wheel 121, this line tension roller 30 is subjected to one and comprises that the control of the line tension control device 20 of servo motor 22 drives, this servo motor 22 is electrically connected to a position feedback device 24, by the handoff message receiving system of position feedback device 24 as mode command, make this line tension control device 20 can be to servo motor 22 launching position control models or torsion control model or speed control mode, allow the action of servo motor 22 control line tension force rollers 30; Then this line electrode 50 runs through a end of a thread clamping device 40 that comprises line cutter 42 in regular turn, and head 44, a workpiece to be machined 60 on one, head 46 once, 50 of this line electrodes turn to and send into back take-up roller set 47 during to the 3rd guide wheel 122, and these back take-up wheels 47 drive the take-up action by a back take-up CD-ROM drive motor 48.Though the line tension size at line electrode in the above-mentioned known techniques can be done corresponding control, but because of the bobbin of lifting-line electrode when the situation of full line, specification difference according to line electrode has different full line weight, for example according to present standard specification on the market, full line copper cash axle a bundle 16Kg person is arranged, 10Kg person, 5Kg person, differences such as 3Kg person, process weight minimizing gradually in time according to discharge processing, can influence the size of line electrode pulling force and go out linear velocity, and then influence line electrode tension force and go out change of line speed, when amplitude of variation is excessive, then can produce the phenomenon of line electrode vibration, to the cutting accuracy of wire-cut electric discharge machine bad influence will take place.
In addition the person is then just like Taiwan patent of invention I255212 number a kind of glass-coated microwire tension control mechanism that is applicable to small wire-cut electric discharge machine that discloses, then mainly be comprise a substrate, to line bobbin, a take-up bobbin, a plate-like magnetic material, a plate-like ferrous materials, a magnetic force size-regulating mechanism, reach institute such as a magnetic force size indicator and combine; When doing the rotation adjustment with the magnetic force size-regulating mechanism, plate-like magnetic material base will drive the plate-like magnetic material and advance or retreat, therefore magneto motive coverage also will change thereupon, so the plate-like ferrous materials is also changed by the strength that the plate-like magnetic material adsorbs thereupon, so, just, can the accurate line tension of controlling glass-coated microwire.But this mechanism is not suitable for the line traveling system of large-scale wire-cut electric discharge machine, and control as above-mentioned bobbin at the lifting-line electrode be when full line, the line tension of high weight bobbin.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides two kinds of line tension balance control devices that belong to same total inventive concept, these two kinds of line tension balance control devices all are to utilize principle of moment balance can keep the fixed purpose that weighs to reach control line tension force, and then reach minimizing because of the vibrative greatly function of line tension variation fluctuating range.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of line tension balance control device of the present invention: comprise rotating shaft, the linear bar of equidirectional linear bar and other direction branch, described rotating shaft is fixing not mobile fulcrum, described equidirectional linear bar place in the middle of it is connected in the rotating shaft, one end of the linear bar of described other direction branch is connected in the rotating shaft, the linear bar fixed angle between the two of described equidirectional linear bar and described other direction branch, can hang different mass respectively on each described linear bar, wherein be set with on the end of a linear bar and hold line thing, the described gravity torque that holds the line thing for the line electrode pile warp, the pulling force moment of the gravity torque of described mass and described line electrode is reached the equalising torque state.
Wherein, offer some connecting holes for the installing mass on each described linear bar respectively, this connecting hole is preferably circular hole.
Wherein, described mass can be respectively the counterweight circle of Different Weight.
Wherein, the described line thing that holds is preferably rope sheave.
Preferably, described equidirectional linear bar is connected with the linear bar one of described other direction branch.
Another kind of line tension balance control device of the present invention: comprise rotating shaft, the linear bar of equidirectional linear bar and other direction branch, described rotating shaft is fixing not mobile fulcrum, described equidirectional linear bar is connected in the rotating shaft, one end of the linear bar of described other direction branch is connected in the rotating shaft, the linear bar fixed angle between the two of described equidirectional linear bar and described other direction branch, be provided with spring, linear bar and the other end that described spring one end is connected in described other direction branch are fixed stiff end, wherein be set with on the end of a linear bar and hold line thing, the described gravity torque that holds the line thing for the line electrode pile warp, the elastic force moment of spring and the pulling force moment of described line electrode are reached the equalising torque state.
Preferably, the described line thing that holds is rope sheave.
Preferably, described equidirectional linear bar is connected with the linear bar one of described other direction branch.
The invention has the beneficial effects as follows: the present invention makes the line electrode pile warp hold the line thing, according to principle of moment balance, gravity torque by adjusting mass or the elastic force moment of spring are come the variation of balanced line electrode pulling force moment, come the control line pulling force to keep weighing apparatus fixed with this, reach and reduce line tension and go out the function of the big vibration that produces of change of line speed fluctuating range.
Description of drawings
Fig. 1 is the control line tension force roller devices configured in one piece schematic diagram of the wire-cut electric discharge machine commonly used;
Fig. 2 is that the line tension balance control device of the embodiment of the invention 1 is in counterweight zero moment mechanism position schematic diagram;
Fig. 3 is that the line tension balance control device of the embodiment of the invention 1 is in counterweight torsional moment mechanism position schematic diagram;
Fig. 4 is that the line tension balance control device of the embodiment of the invention 1 is in counterweight zero moment effect balance schematic diagram;
Fig. 5 is that the line tension balance control device of the embodiment of the invention 1 is in counterweight torsional moment effect balance schematic diagram;
Fig. 6 is that the line tension balance control device of the embodiment of the invention 2 is in elastic force torsional moment effect balance schematic diagram.
The specific embodiment
Below by specific instantiation explanation the specific embodiment of the present invention, the personage who is familiar with this skill can understand advantage of the present invention and effect easily by the content that this specification discloses.The present invention also can other different mode be implemented, and, under not departing from disclosed category, can give different modifications and change that is.
Embodiment 1: this outlet roller 10 that line tension balance control device of the present invention can be arranged at as shown in Figure 1 is middle to this line tension roller 30, with the tension variation of this line electrode 50 of balance.
Fig. 2 for line tension balance control device of the present invention in the mechanism position schematic diagram of counterweight zero moment poised state, as shown in Figure 2, comprise that a rotating shaft 70 is fixing mobile fulcrum; One center line 100 is the vertical line of expression by these rotating shaft 70 central points; The centre of one equidirectional linear bar 80 locks in this rotating shaft 70 admittedly, and an end of the linear bar 81 of other direction branch is connected to this rotating shaft 70; On the linear bar 81 of this equidirectional linear bar 80 and other direction branch, several circular holes that can hang mass 82 are arranged all respectively; One of in several circular holes 82 on the linear bar 81 of this other direction branch, hang counterweight circle 90, when these counterweight circle 90 zero moment poised states, the position of the linear bar 81 of this other direction branch is sitting on this vertical center line 100; One of in several circular holes 82 on an end of this equidirectional linear bar 80, then hang counterweight circle 91; On the other end of this equidirectional linear bar 80, fixedly install a rope sheave 71, will be for the circumferential outer edge place of this this rope sheave 71 of line electrode 50 pile warps.
Fig. 3 is that line tension balance control device of the present invention is in counterweight torsional moment mechanism position schematic diagram, as shown in Figure 3, when this line tension balance control device is fixing not mobile fulcrum with rotating shaft 70, when anticlockwise rotation took place, the linear bar 81 of this other direction branch left the position of this vertical center line 100; On the linear bar 81 of this other direction branch, hang the gravity of this counterweight circle 90, will produce the clockwise torque square, according to principle of moment balance, will with the torsional moment of this counterweight circle 91 gravity, the torsional moment of these rope sheave 71 gravity, reach poised state and static.
Fig. 4 illustrates in counterweight zero moment effect balance for line tension balance control device of the present invention, as shown in Figure 4, in the time of on by this rope sheave 71 of these line electrode 50 pile warps line tension balance control device of the present invention of this outlet roller 10, the one line tensile force f that makes progress will act on this rope sheave 71, and therefore torsional moment counterclockwise takes place the fulcrum to this rotating shaft 70; According to principle of moment balance, will reach and this counterweight circle 90 gravity W with the torsional moment of these counterweight circle 91 gravity, the torsional moment of these rope sheave 71 gravity equally
0Torsional moment, reach poised state; If the position of this linear bar 81 still on this vertical center line 100, hangs the gravity torsional moment of this counterweight circle 90 on the linear bar 81 of this other direction branch, then be in the zero moment poised state.
Fig. 5 for line tension balance control device of the present invention in counterweight torsional moment effect balance schematic diagram, will act on this rope sheave 71 when this line tensile force f that makes progress as shown in Figure 5, so torsional moment counterclockwise takes place in the fulcrum of countershaft 70; Size according to this line tensile force f, this line tension balance control device is fixing not mobile fulcrum with rotating shaft 70, when the counter clockwise direction rotation that different angles take place, the linear bar 81 of this other direction branch leaves the position of this vertical center line 100, the gravity W of these counterweight circle 90 vertical direction
0, can produce the component W that is parallel to this equidirectional linear bar 80
2, reach the component W perpendicular to this equidirectional linear bar 80
1, this component W
1Then produce the clockwise torque square, equally according to principle of moment balance, will justify the torsional moment of 91 gravity, the torsional moment of these rope sheave 71 gravity with torsional moment, this counterweight counterclockwise of this line tensile force f, reach poised state.
Embodiment 2: present embodiment is another kind of line tension balance control device of the present invention, as shown in Figure 6, the difference of itself and embodiment 1 is, on this circular hole 82 of the linear bar 81 of this other direction branch, can connect a spring 92, the other end of this spring 92 is stiff end, according to the principle f=k X of spring mechanical, wherein
K: elastic force constant
X: the deflection of spring
Because the size of this line tensile force f forms different counter clockwise direction torsional moments, cause the different deflection X of spring, so can produce different big or small elastic force f and clockwise direction torsion, with the spring of multi-form and material, the elastic force constant k that coupling is fit to is to produce the elastic force that is fit to size.So can emulation become the damping system of shock absorbing apparatus, the dynamical Differential Equations formula of this damping system can be expressed as
This equation can be used for representing the state of three kinds of different damping systems, one, overdamp system (over damping); Two, critical damping system (critical damping); Three, underdamping system (under damping), when the critical damping system mode of the best, the elastic force of spring just vibrates to lower as buffering.
So the present invention is a kind of line tension balanced controls that are applied to line electrode in the wire-cut electric discharge machine, by adjusting the coupling of different mass weight and torsional moment, or come balanced line electrode pulling force moment with the elastic force moment of spring, can keep weighing apparatus fixed according to principle of moment balance with the control line pulling force, reach and reduce line tension and go out the function of the big vibration that produces of change of line speed fluctuating range.
Above-described embodiment only is illustrative principle of the present invention and effect thereof, but not is used for restriction the present invention.The scope of the present invention should be listed as claims.
Claims (8)
1. line tension balance control device, it is characterized in that: comprise rotating shaft, the linear bar of equidirectional linear bar and other direction branch, described rotating shaft is fixing not mobile fulcrum, described equidirectional linear bar place in the middle of it is connected in the rotating shaft, one end of the linear bar of described other direction branch is connected in the rotating shaft, the linear bar fixed angle between the two of described equidirectional linear bar and described other direction branch, can hang different mass respectively on each described linear bar, wherein be set with on the end of a linear bar and hold line thing, the described gravity torque that holds the line thing for the line electrode pile warp, the pulling force moment of the gravity torque of described mass and described line electrode is reached the equalising torque state.
2. line tension balance control device as claimed in claim 1 is characterized in that: offer some connecting holes for the installing mass on each described linear bar respectively.
3. line tension balance control device as claimed in claim 1 is characterized in that: described mass is respectively the counterweight circle of Different Weight.
4. line tension balance control device as claimed in claim 1, it is characterized in that: the described line thing that holds is rope sheave.
5. line tension balance control device as claimed in claim 1 is characterized in that: described equidirectional linear bar is connected with the linear bar one of described other direction branch.
6. line tension balance control device, it is characterized in that: comprise rotating shaft, the linear bar of equidirectional linear bar and other direction branch, described rotating shaft is fixing not mobile fulcrum, described equidirectional linear bar is connected in the rotating shaft, one end of the linear bar of described other direction branch is connected in the rotating shaft, the linear bar fixed angle between the two of described equidirectional linear bar and described other direction branch, be provided with spring, linear bar and the other end that described spring one end is connected in described other direction branch are fixed stiff end, wherein be set with on the end of a linear bar and hold line thing, the described gravity torque that holds the line thing for the line electrode pile warp, the elastic force moment of spring and the pulling force moment of described line electrode are reached the equalising torque state.
7. line tension balance control device as claimed in claim 6, it is characterized in that: the described line thing that holds is rope sheave.
8. line tension balance control device as claimed in claim 6 is characterized in that: described equidirectional linear bar is connected with the linear bar one of described other direction branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210009393 CN103203507A (en) | 2012-01-13 | 2012-01-13 | Line tension balance control devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210009393 CN103203507A (en) | 2012-01-13 | 2012-01-13 | Line tension balance control devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103203507A true CN103203507A (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210009393 Pending CN103203507A (en) | 2012-01-13 | 2012-01-13 | Line tension balance control devices |
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| Country | Link |
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| CN (1) | CN103203507A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966225A (en) * | 2017-05-17 | 2017-07-21 | 国网湖北省电力公司荆门供电公司 | A kind of line roller of motor control for electric power from unwrapping wire overturning-preventing of walking |
| CN110132475A (en) * | 2019-05-17 | 2019-08-16 | 常州市新创智能科技有限公司 | One kind being based on weighing sensor yarn tension scaling method |
| CN110948719A (en) * | 2019-11-25 | 2020-04-03 | 晶科能源有限公司 | Linear cutting machine frame |
-
2012
- 2012-01-13 CN CN 201210009393 patent/CN103203507A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966225A (en) * | 2017-05-17 | 2017-07-21 | 国网湖北省电力公司荆门供电公司 | A kind of line roller of motor control for electric power from unwrapping wire overturning-preventing of walking |
| CN106966225B (en) * | 2017-05-17 | 2023-04-14 | 国网湖北省电力有限公司荆门供电公司 | Motor-controlled self-walking paying-off anti-toppling wire roller for electric power |
| CN110132475A (en) * | 2019-05-17 | 2019-08-16 | 常州市新创智能科技有限公司 | One kind being based on weighing sensor yarn tension scaling method |
| CN110948719A (en) * | 2019-11-25 | 2020-04-03 | 晶科能源有限公司 | Linear cutting machine frame |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130717 |