CN102557420B - Photoelectric positioning device and method for glass cutting machine - Google Patents
Photoelectric positioning device and method for glass cutting machine Download PDFInfo
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- CN102557420B CN102557420B CN201010600032.7A CN201010600032A CN102557420B CN 102557420 B CN102557420 B CN 102557420B CN 201010600032 A CN201010600032 A CN 201010600032A CN 102557420 B CN102557420 B CN 102557420B
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Abstract
The invention provides a photoelectric positioning device for a glass cutting machine. The photoelectric positioning device is characterized by comprising a control unit, a motion control unit, a servo-driven unit, a cutting part, an encoder and a photoelectric switch unit, wherein the control unit is electrically connected with the motion control unit and the encoder respectively; the motion control unit is electrically connected with the servo-driven unit and the photoelectric switch unit respectively; the servo-driven unit is electrically connected with the cutting part; and the photoelectric switch unit is configured at the cutting part. The invention has the benefits that large angle deviation is allowed during glass taking and conveying; the bottoms of glass stop blocks are prevented from being scratched during positioning; when the glass is cut into the shape of a quasi parallelogram, a trapezoid or other irregular pieces, the glass utilization ratio is improved to the utmost extent; and cutting precision reduction caused by sliding of glass during positioning of the stop blocks is avoided.
Description
Technical field
The present invention relates to a kind of locating device and method of glass cutting machine, refer in particular to a kind of photoelectric positioning apparatus and method of glass cutting machine.
Background technology
The glass cutting machine of main flow is mostly used the mode of block location to position cutting to glass in the market, the principle of block location is with block, to block a limit of glass, with belt, drive glass to move by force to block direction, allow glass oneself move positive dirction, determine the position of glass this edge, then with sensor, calculate the position on another limit.Between the both sides of this locator means acquiescence glass, be all 90 degree angles, so requiring former sheet glass must be regular rectangle, not so will on four edges, there is cutting error, and block gear during glass the relatively sliding between feed belt and glass can cause scuffing to glass bottom.Revise cutting error and the glass outside with error can be dismissed to guarantee the dimensional precision of inner glass, but the scuffing problem of glass still cannot solve.
Now a lot of original sheet glasses in market are because rectangular degree cannot guarantee the cutting edge of having to, although cutting edge cutting can guarantee cutting accuracy, have reduced the cutting and sizing rate of original sheet glass and increase cost, increase cutter number and reduce production efficiency in the time of also can be due to cutting edge; By block location, cause the glass of scuffing also cannot meet the requirement of high-end customer, so the producer of a lot of glass deep processings is very dissatisfied to this; Former of indivedual glass deep-processing factory family expenses without thin paper with glass powder as the interlayer between glass, the glass reference position of easily slipping away on belt when block is located.Block location drawback highlights and makes it to be more and more not suitable for existing situation, so need a kind of brand-new localization method to solve these problems.In this case, photoelectricity localization method arises at the historic moment.
Conventional glass cutting machine is usingd X-direction and Y direction as benchmark, forms a rectangular coordinate system, after a glass enters this system of coordinates, it be exactly a little the point in system of coordinates, cutting machine can be done cutting action in the arbitrfary point in system of coordinates.Conventionally glass can enter system of coordinates with positive dirction, therefore two adjacent limits of glass can be parallel to X and Y-axis, according to the frame of reference, just can cut, if but this glass is not the rectangle of standard, or it enters system of coordinates with non-positive dirction, according to former reference coordinate, go cutting will there will be significant error so.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of apparatus and method that can utilize photoelectricity localization method to position the cutter head of glass cutting machine.
To achieve these goals, the technical solution used in the present invention is, a kind of photoelectric positioning apparatus of glass cutting machine is provided, it is characterized in that, it comprises: control unit, motion control unit, servo drive unit, cutting part, encoder and photoconductive switching element, described control unit is electrically connected to described motion control unit, described encoder respectively, for transmitting control signal to described motion control unit and described encoder and receiving the signal of described motion control unit and described encoder feedback; Described motion control unit is electrically connected to described servo drive unit, described photoconductive switching element respectively, for the signal to described servo drive unit transmitted signal and the described photoconductive switching element feedback of reception; Described servo drive unit is electrically connected to cutting part, for driving cutting part to move to pre-determined direction; On described cutting part, dispose described photoconductive switching element, described photoconductive switching element is used for sending and receiving optical signal, and converts the optical signal receiving to electrical signal, and then sends to described motion control unit.
During enforcement, also comprise display unit, described display unit is for showing the correspondence position of cutting part and glass.
During enforcement, described control unit is central processing unit, according to input instruction to corresponding functional unit transmitted signal.
During enforcement, described photoconductive switching element comprises LASER Light Source, CMOS or CCD photodetector.
The present invention also provides the photoelectricity localization method of the glass cutting machine in a kind of photoelectric positioning apparatus that is applied in above-mentioned glass cutting machine, and it comprises the steps:
Step 1: detect any three the some A (x in edge portion on glass by photoconductive switching element
1, y1), B (x
2, y
2), C (x
3, y
3) position;
Step 2: control unit is carried out the initial point O that following mathematical operation draws glass " coordinate (x
1-x
a, y
3-y
a):
A=y
2-y
1; B=x
2-x
1; M=x
1-x
3; N=y
3-y
1; Tg α=a/b; Ctg α=b/a; α is the angle of glass deflection;
Can release: x
a=(y
a-n) * ctg α; x
a=m=y
a* tg α;
Finally obtain:
x
a＝b(b×m-an)/(a×a+b×b)；y
a＝b(b×n+a×m)/(a×a+b×b)；α＝actga/b；
Calculate the angle [alpha] of glass deflection, the initial point O of glass " (x
1-x
a, y
3-y
a) coordinate in positive coordinate system;
Step 3: it is the coordinate in positive coordinate system by the coordinate conversion in deflection coordinate system that control unit is carried out following mathematical operation:
When α >0, x '=x
0* cos α; Y '=x
0* sin α; (x
0, y
0) be any point in deflection coordinate system,
X=x '-y
0* sin α; Y=y '+y
0* cos α; (x, y) is the coordinate of same point in positive coordinate system,
Substitution and get final product: x=x
0* cos α-y
o* sin α; Y=x
0* sin α+y
0* cos α.
Through above-mentioned computing, arbitrfary point on glass is converted into the point in positive coordinate system, has therefore completed the photoelectricity location of glass cutting machine, and control unit sends instruction and makes cutting part glass-cutting.
Compared with prior art, beneficial effect of the present invention is: while allowing glass sheet-fetching to transmit, have larger angle deviation; Bottom while avoiding glass block location scratches; The glass of cutting be as the criterion the parallelogram of rectangle, trapezoidal these irregular former time, can improve to greatest extent the utilization ratio of glass; The cutting accuracy that can avoid block when location glass slides and cause reduces.
Accompanying drawing explanation
Fig. 1 is the module map of each functional unit of the embodiment of the present invention.
Fig. 2 A and Fig. 2 B are the schematic diagram calculations of the embodiment of the present invention, extrapolate the principle of system of coordinates being carried out to deflection.
Fig. 3 A and Fig. 3 B are the action flow charts of the embodiment of the present invention, detailed analysis how by three points, determine the position of glass.
Description of reference numerals: photoelectric positioning apparatus-1; Control unit-11; Motion control unit-12; Servo drive unit-13; Cutting part-14; Encoder-15; Photoconductive switching element-16; Display unit-17.
Embodiment
As shown in Figure 1, the invention provides a kind of photoelectric positioning apparatus 1 of glass cutting machine, it comprises: control unit 11, motion control unit 12, servo drive unit 13, cutting part 14, encoder 15 and photoconductive switching element 16, described control unit 11 is electrically connected to described motion control unit 12, described encoder 15 respectively, for transmitting control signal to described motion control unit 12 and described encoder 15 and receiving the signal of described motion control unit 12 and described encoder 15 feedbacks; Described motion control unit 12 is electrically connected to described servo drive unit 13, described photoconductive switching element 16 respectively, for the signal to described servo drive unit 13 transmitted signals and described photoconductive switching element 16 feedbacks of reception; Described servo drive unit 13 is electrically connected to cutting part 14, for driving cutting part 14 to move to pre-determined direction; On described cutting part 14, dispose described photoconductive switching element 16, described photoconductive switching element 16 is for sending and receiving optical signal, and converts the optical signal receiving to electrical signal, and then sends to described motion control unit 12.
Described photoelectric positioning apparatus 1 also comprises display unit 17, and described display unit 17 is for showing the correspondence position of cutting part 14 and glass; Described control unit 11 is central processing units, according to input instruction to corresponding functional unit transmitted signal; Described photoconductive switching element 16 comprises LASER Light Source, CMOS or CCD photodetector.
Fig. 2 A and Fig. 2 B are the schematic diagram calculations of the embodiment of the present invention, detailed analysis glass with certain angle, enter the situation in positive coordinate system.Fig. 2 A represents that glass enters system of coordinates with the angular deflection of+α, and Fig. 2 B figure represents that glass enters system of coordinates with the angular deflection of-α.X-O-Y coordinate in Fig. 2 A and Fig. 2 B is positive coordinate, and during glass cutting, cutting part 14 moves in this system of coordinates; X '-O-Y ' coordinate is deflection coordinate system, is also the system of coordinates corresponding with glassy phase, and the four edges of glass is all the diaxon that is parallel to this system of coordinates; O ' is a point of glass in Fig. 2, take that this puts as target and calculates, and deduces to other any points on glass, and it can represent any point on glass.For instance: need to cut an X ' edge lengths along glass be the straight line of a meter on glass, take O ' as starting point, in deflection coordinate system, starting point coordinate is (x so
0, y
0), terminal point coordinate is (x
0+ 1, y
0).But cutting part 14 is not familiar with deflection coordinate, only can in positive coordinate, move, so the point in deflection coordinate will be converted into the point in positive coordinate.
By Fig. 2 A, can be obtained: when α >0, x '=x
0* cos α; Y '=x
0* sin α;
Due to x=x '-y
0* sin α; Y=y '+y
0* cos α;
Substitution and get final product: x=x
0* cos α-y
o* sin α; Y=x
0* sin α+y
0* cos α.
When α <0, see Fig. 2 B, this formula is still general.Therefore on glass, anyly by this formula, be converted into the point in positive coordinate system.
Fig. 3 A and Fig. 3 B are the action flow charts of the embodiment of the present invention, detailed analysis how by three points, determine the position of glass.At Fig. 3 A and Fig. 3 B, introduced the α in Fig. 2 and how to have got, also had the initial point O of glass " how be foundly.Fig. 3 A and Fig. 3 B are respectively the schematic diagram that enters glass cutting table with the angle of negative bias and positively biased, when glass enters with certain angle, utilization is arranged on the edge portion that described photoconductive switching element 16 on cutting part 14 is identified glass: described photoconductive switching element 16 transmitting bright dippings, light runs into glass and is reflected back, can judge that cutting part 14 is above glass, cutting part 14 continues mobile until suddenly disappear at the light of a time point reflection, can judge that cutting part 14 has moved to the edge portion of glass; Three some A, B, C are scanned to draw to the accurate coordinate of these three points.The right figure deflection angle of take is as the criterion as+α, sets coordinate: A (x
1, y
1); B(x
2, y
2); C(x
3, y
3); The initial point O of glass so " coordinate should be just (x
1-x
a, y
3-y
a).
By Fig. 3 B, can be obtained: a=y
2-y
1; B=x
2-x
1; M=x
1-x
3; N=y
3-y
1; Tg α=a/b; Ctg α=b/a.
Can release: x
a=(y
a-n) * ctg α; x
a=m=y
a* tg α.
Finally obtain:
x
a＝b(b×m-an)/(a×a+b×b)；y
a＝b(b×n+a×m)/(a×a+b×b)；
α＝actga/b。
Can calculate the angle of glass deflection α like this, the initial point O of glass " coordinate in positive coordinate system.
By two computation processes above, can be by any point on glass, any graphic projection of cutting that needs is among positive coordinate system, and cutting part 14 gets final product cutting.The method of this glass location does not need glass to move on cutting bed, so avoided the problem scratching; All course of action and computation process are completed automatically by computer, and the fast precision of speed is high; Because 2 of A, B find and calculate deflection angle on long limit, so even glass rectangular degree difference slightly, need be on minor face made allowance slightly, can farthest reduce like this waste of glass raw sheet.
Above, being only the preferred embodiments of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.At this professional skill field tool, common knowledge personnel understand, and in the spirit and scope that limit, can carry out many changes to it in the claims in the present invention, revise, and the even change of equivalence, but all will fall within the scope of protection of the present invention.
Claims (5)
1. the photoelectric positioning apparatus of a glass cutting machine, it is characterized in that, it comprises: control unit, motion control unit, servo drive unit, cutting part, encoder and photoconductive switching element, described control unit is electrically connected to described motion control unit, described encoder respectively, for transmitting control signal to described motion control unit and described encoder and receiving the signal of described motion control unit and described encoder feedback; Described motion control unit is electrically connected to described servo drive unit, described photoconductive switching element respectively, for the signal to described servo drive unit transmitted signal and the described photoconductive switching element feedback of reception; Described servo drive unit is electrically connected to cutting part, for driving cutting part to move to pre-determined direction; On described cutting part, dispose described photoconductive switching element, described photoconductive switching element is used for sending and receiving optical signal, and converts the optical signal receiving to electrical signal, and then sends to described motion control unit.
2. the photoelectric positioning apparatus of glass cutting machine as claimed in claim 1, is characterized in that, also comprises display unit, and described display unit is for showing the correspondence position of cutting part and glass.
3. the photoelectric positioning apparatus of glass cutting machine as claimed in claim 1, is characterized in that, described control unit is central processing unit, according to input instruction to corresponding functional unit transmitted signal.
4. the photoelectric positioning apparatus of glass cutting machine as claimed in claim 1, is characterized in that, described photoconductive switching element comprises LASER Light Source, CMOS or CCD photodetector.
5. a photoelectricity localization method that is applied in the glass cutting machine in the photoelectric positioning apparatus of glass cutting machine claimed in claim 1, it comprises the steps:
Step 1: detect any three the some A (x in edge portion on glass by photoconductive switching element
1, y1), B (x
2, y
2), C (x
3, y
3) position;
Step 2: control unit is carried out the initial point O that following mathematical operation draws glass " coordinate (x
1-x
a, y
3-y
a):
A=y
2-y
1; B=x
2-x
1; M=x
1-x
3; N=y
3-y
1; Tg α=a/b; Ctg α=b/a; α is the angle of glass deflection;
Can release: x
a=(y
a-n) * ctg α; x
a=m=y
a* tg α;
Finally obtain:
x
a＝b(b×m-an)/(a×a+b×b)；y
a＝b(b×n+a×m)/(a×a+b×b)；α＝actga/b；
Calculate the angle [alpha] of glass deflection, the initial point O of glass " (x
1-x
a, y
3-y
a) coordinate in positive coordinate system;
Step 3: it is the coordinate in positive coordinate system by the coordinate conversion in deflection coordinate system that control unit is carried out following mathematical operation:
X '=x
0* cos α; Y '=x
0* sin α; (x
0, y
0) be the arbitrfary point in deflection coordinate system,
X=x '-y
0* sin α; Y=y '+y
0* cos α; (x, y) is the coordinate of same point in positive coordinate system,
Substitution and get final product: x=x
0* cos α-y
o* sin α; Y=x
0* sin α+y
0* cos α,
Through above-mentioned computing, arbitrfary point on glass is converted into the point in positive coordinate system, has therefore completed the photoelectricity location of glass cutting machine, and control unit sends instruction and makes cutting part glass-cutting.
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|---|---|---|---|
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|---|---|---|---|
| CN201010600032.7A CN102557420B (en) | 2010-12-22 | 2010-12-22 | Photoelectric positioning device and method for glass cutting machine |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424433Y (en) * | 2009-06-19 | 2010-03-17 | 济南德佳玻璃机器有限公司 | Automatic edge searching positioning system of laser positioning sensor at the edge of glass |
| CN101722709A (en) * | 2009-11-17 | 2010-06-09 | 厦门太豪电子制版有限公司 | Automatic positioning and fault-tolerant safety device of frame roller in digital electronic engraving system |
| CN201962195U (en) * | 2010-12-22 | 2011-09-07 | 洛阳北方玻璃技术股份有限公司 | Photoelectric positioning device of glass cutter |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201424433Y (en) * | 2009-06-19 | 2010-03-17 | 济南德佳玻璃机器有限公司 | Automatic edge searching positioning system of laser positioning sensor at the edge of glass |
| CN101722709A (en) * | 2009-11-17 | 2010-06-09 | 厦门太豪电子制版有限公司 | Automatic positioning and fault-tolerant safety device of frame roller in digital electronic engraving system |
| CN201962195U (en) * | 2010-12-22 | 2011-09-07 | 洛阳北方玻璃技术股份有限公司 | Photoelectric positioning device of glass cutter |
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