CN102180592A - High-speed cutting method based on tangent following glass cutting system - Google Patents

High-speed cutting method based on tangent following glass cutting system Download PDF

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Publication number
CN102180592A
CN102180592A CN2011100495814A CN201110049581A CN102180592A CN 102180592 A CN102180592 A CN 102180592A CN 2011100495814 A CN2011100495814 A CN 2011100495814A CN 201110049581 A CN201110049581 A CN 201110049581A CN 102180592 A CN102180592 A CN 102180592A
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China
Prior art keywords
cutting
path
glass
speed
circular arc
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CN2011100495814A
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Chinese (zh)
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CN102180592B (en
Inventor
赵冬
方敏
齐伟
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上海维宏电子科技有限公司
上海奈凯电子科技有限公司
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Priority to CN 201110049581 priority Critical patent/CN102180592B/en
Publication of CN102180592A publication Critical patent/CN102180592A/en
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Abstract

The invention relates to a high-speed cutting method based on a tangent following glass cutting system. The method comprises the following steps: firstly, cutting glass along a first straight path to a starting position of a connecting path; then cutting the glass along the connecting path to a stopping position of the connecting path on a second straight path; and then cutting the glass along the second straight path, and completing the interpolation of a rotating shaft simultaneously when completing the interpolation of a translational shaft of a cutting knife, so as to ensure the direction of the rotating shaft of the cutting knife to be always consistent with the tangent direction of a cutting path under the condition of maintaining certain cutting speed in the process of steering. By adopting the high-speed cutting method based on the tangent following glass cutting system, the cutting speed at corners is effectively improved within the allowable precision range, high-speed glass cutting and processing in the glass cutting system with tangent following are realized, and the processing efficiency is improved.

Description

Follow the high-speed cutting method of glass cutting system based on tangent line
Technical field
The present invention relates to numerically-controlled machine control techniques field, particularly the numerically-controlled machine tangent line is followed glass cutting system applies technical field, specifically is meant a kind of high-speed cutting method of following the glass cutting system based on tangent line.
Background technology
Having in the glass cutting system that tangent line follows of numerically-controlled machine, except needs control common translation shaft X, Y, also need the direction of feed glass cutters, the turning axle a that makes the glass cutting cutter is all the time along the tangential direction of cutting path.It is not in-problem that this control requires the cutting for the wall scroll line segment, but for realizing that the continuous high speed cutting has caused difficulty.
As shown in Figure 1, for two adjacent line segments in the processing cutter track,, can a connection speed be set at a B place by the speed join algorithm and realize continuous high speed processing if there is not tangent line to follow.If follow, just so above scheme can not be implemented but the glass cutting system has tangent line.This is that turning axle a is along vector because on the AB section But turning axle a edge then on the BC section Direction.Therefore, have at present glass cutting system that tangent line follows all the speed of junction be set to zero, to realize the break-in of turning axle a.At first move to the B point, speed is reduced to zero from the A point, and then rotation a axle, forward the edge to Direction is cut the BC section with zero starting velocity from the B point at last again.Such control method will inevitably reduce the working (machining) efficiency of glass cutting, and especially when this control method being applied to different in nature glass cutting (cutter track is formed by connecting by a lot of short line segments), its working (machining) efficiency can be very low.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of and can in having the glass cutting system that tangent line follows, realize high speed glass cutting processing, improve working (machining) efficiency, and application mode is easy, and range of application is followed the high-speed cutting method of glass cutting system comparatively widely based on tangent line.
In order to realize above-mentioned purpose, in the high-speed cutting method of following the glass cutting system based on tangent line of the present invention, the cutting path of systemic presupposition comprises the first continuous straight line path With second straight line path Described With Angle be θ, described cutting method may further comprise the steps:
(1) along first straight line path Glass-cutting is to the access path zero position;
(2) along access path glass-cutting to the second straight line path On the access path final position;
(3) along second straight line path Glass-cutting.
Should follow in the high speed corner cutting method of glass cutting system based on tangent line, further comprising the steps of before in step (1): (0) judges whether θ is 0, if 0, then method ends if be not 0, then continues step (1).
Should follow in the high speed corner cutting method of glass cutting system based on tangent line, described access path is a circular arc.
Should follow in the high speed corner cutting method of glass cutting system based on tangent line, the distance between the center of circle O of described circular arc and the described cutting path flex point B is:
|OB|=min{0.5|AB|,0.5|BC|,l},
Wherein, l is the distance between access path zero position D and the cutting path flex point B | DB|.
Should follow in the high speed corner cutting method of glass cutting system based on tangent line, when The time, the coordinate of the center of circle O of described circular arc is:
(x O,y O)=(x D,y D)+R?(b,a),
When The time, the coordinate of the center of circle O of described circular arc is:
(x O,y O)=(x D,y D)+R?(b,a),
Wherein, the coordinate (x of the point of contact D of the described circular arc and first straight line path D, y D) be:
( x D , y D ) = ( x B , y B ) - l | AB | ( x B - x A , y B - y A ) ,
The radius R of described circular arc access path is:
R = l sin ( 1 2 q ) ,
Described a and b are respectively Vector of unit length (a, b) component on X-axis and Y-axis.
Should follow in the high speed corner cutting method of glass cutting system based on tangent line, cutting error DR satisfies following relational expression:
Should follow in the high speed corner cutting method of glass cutting system based on tangent line, the cutting speed in feet per minute V of described access path is:
V = R R ~ V ~
Wherein, described For default interpolation circular arc standard radius, described Canonical reference speed under the default standard radius situation.
Adopted the high-speed cutting method of following the glass cutting system based on tangent line of this invention, because it is at first along first straight line path Glass-cutting is to the access path zero position; Then along access path glass-cutting to the second straight line path On the access path final position; Again along second straight line path Glass-cutting when finishing the interpolation of cutters translation shaft, is finished the interpolation of turning axle, guarantees to keep in steering procedure under the situation of certain cutting speed in feet per minute, and the turning axle direction of the cutters tangential direction with cutting path all the time is consistent.Thereby in the scope that precision allows, improve the cutting speed in feet per minute of nook, be implemented in the high speed glass cutting processing that has in the glass cutting system that tangent line follows, improve working (machining) efficiency.And of the present invention to follow the high-speed cutting method application mode of glass cutting system based on tangent line easy, and range of application is comparatively extensive.
Description of drawings
Fig. 1 is the cutting path synoptic diagram of the glass cutting system that has tangent line in the prior art and follow.
Fig. 2 is for using cutting path synoptic diagram of following the high-speed cutting method of glass cutting system based on tangent line of the present invention.
Fig. 3 is a flow chart of steps of following the high-speed cutting method of glass cutting system based on tangent line of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 2ly, be cutting path synoptic diagram of following the high-speed cutting method of glass cutting system based on tangent line of the present invention.Wherein, the cutting path of systemic presupposition comprises the first continuous straight line path With second straight line path Described With Angle be θ.High-speed cutting method of following the glass cutting system based on tangent line of the present invention as shown in Figure 3, may further comprise the steps:
(1) along first straight line path Glass-cutting is to the access path zero position;
(2) along access path glass-cutting to the second straight line path On the access path final position, to finish the interpolation of cutters translation shaft and turning axle simultaneously;
(3) along second straight line path Glass-cutting.
In a kind of more preferably embodiment, described method is further comprising the steps of before in step (1):
(0) judge whether θ is 0, if 0, then method ends if be not 0, then continues step (1).
More preferably in the embodiment, described access path is a circular arc at another kind.
More preferably in the embodiment, the distance between the center of circle O of described circular arc and the described cutting path flex point B is at another:
|OB|=min{0.5|AB|,0.5|BC|,l},
Wherein, l is the distance between access path zero position D and the cutting path flex point B | DB|, l is relevant with working accuracy, because cutting error (that is: the error of radius R) DR satisfies Therefore if wish mismachining tolerance less than 1mm, then l can be made as 1;
When The time, the coordinate of the center of circle O of described circular arc is:
(x O,y O)=(x D,y D)+R?(b,a),
When The time, the coordinate of the center of circle O of described circular arc is:
(x O,y O)=(x D,y D)+R?(b,a),
Wherein, the coordinate (x of the point of contact D of the described circular arc and first straight line path D, y D) be:
( x D , y D ) = ( x B , y B ) - l | AB | ( x B - x A , y B - y A ) ,
The radius R of described circular arc is:
R = l sin ( 1 2 q ) ,
Described a and b are respectively Vector of unit length (a, b) component on X-axis and Y-axis.
In preferred embodiment, the cutting speed in feet per minute V of described access path is:
V = R R ~ V ~
Wherein, described For default interpolation circular arc standard radius, described Canonical reference speed under the default standard radius situation.
In an application of the invention, high-speed cutting method of following the glass cutting system based on tangent line of the present invention specifically may further comprise the steps:
The first step: judge that whether connection angle q is zero, if be zero then do not need to handle non-vanishing then the execution for second step.
Second step:, in the scope that precision allows, revise to cutter track as shown in fig. 1.It is modified to cutter track as shown in Figure 2.Detailed process is as follows:
Set one and connect length l (l has determined working accuracy), the length of getting OB is:
|OB|=min{0.5|AB|,0.5|BC|,l}
The length of OB is to consider AB and being connected of line segment before less than half of AB and BC length, BC and being connected of line segment afterwards.
By geometric relationship as can be known? DOB Therefore the radius of the circular arc of determining is:
R = l sin ( 1 2 q )
The coordinate that D point and E are ordered is respectively
( x D , y D ) = ( x B , y B ) - l | AB | ( x B - x A , y B - y A )
( x E , y E ) = ( x B , y B ) + l | AB | ( x C - x B , y C - y B )
In order to determine the center of circle of circular arc, need at first judge determinant Sign, if this determinant greater than zero, then the circular arc that connects of explanation be a counter clockwise direction (positive dirction), otherwise is negative direction.
If the circular arc that connects is a positive dirction, then the coordinate of the center O of circular arc is:
(x O,y O)=(x D,y D)+R?(b,a)
If be negative direction then
(x O,y O)=(x D,y D)+R?(b,a)
The circular arc path of whole interpolation this moment is determined.
The 3rd step: circular arc can be that circular arc is provided with connection speed by the circular arc speed limit after determining, promptly the cutting speed in feet per minute of access path is:
V = R R ~ V ~
Wherein With Be standard round radius and the canonical reference speed that is provided with.
In the 4th step, finish interpolation.
Adopted the high-speed cutting method of following the glass cutting system based on tangent line of this invention, because it is at first along first straight line path Glass-cutting is to the access path zero position; Then along access path glass-cutting to the second straight line path On the access path final position; Again along second straight line path Glass-cutting when finishing the interpolation of cutters translation shaft, is finished the interpolation of turning axle, guarantees to keep in steering procedure under the situation of certain cutting speed in feet per minute, and the turning axle direction of the cutters tangential direction with cutting path all the time is consistent.Thereby in the scope that precision allows, improve the cutting speed in feet per minute of nook, be implemented in the high speed glass cutting processing that has in the glass cutting system that tangent line follows, improve working (machining) efficiency.And of the present invention to follow the high-speed cutting method application mode of glass cutting system based on tangent line easy, and range of application is comparatively extensive.
In this specification sheets, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification sheets and accompanying drawing are regarded in an illustrative, rather than a restrictive.

Claims (7)

1. a high-speed cutting method of following the glass cutting system based on tangent line is characterized in that, the cutting path of systemic presupposition comprises the first continuous straight line path With second straight line path Described With Angle be θ, described cutting method may further comprise the steps:
(1) along first straight line path Glass-cutting is to the access path zero position;
(2) along access path glass-cutting to the second straight line path On the access path final position;
(3) along second straight line path Glass-cutting.
2. high speed corner cutting method of following the glass cutting system based on tangent line according to claim 1 is characterized in that described method is further comprising the steps of before in step (1):
(0) judge whether θ is 0, if 0, then method ends if be not 0, then continues step (1).
3. high speed corner cutting method of following the glass cutting system based on tangent line according to claim 1 is characterized in that described access path is a circular arc.
4. high speed corner cutting method of following the glass cutting system based on tangent line according to claim 3 is characterized in that, the distance between the center of circle O of described circular arc and the described cutting path flex point B is:
|OB|=min{0.5|AB|,0.5|BC|,l},
Wherein, l is the distance between access path zero position D and the cutting path flex point B | DB|.
5. high speed corner cutting method of following the glass cutting system based on tangent line according to claim 4 is characterized in that, when The time, the coordinate of the center of circle O of described circular arc is:
(x O,y O)=(x D,y D)+R?(b,a),
When The time, the coordinate of the center of circle O of described circular arc is:
(x O,y O)=(x D,y D)+R?(b,a),
Wherein, the coordinate (x of the point of contact D of the described circular arc and first straight line path D, y D) be:
( x D , y D ) = ( x B , y B ) - l | AB | ( x B - x A , y B - y A ) ,
The radius R of described circular arc access path is:
R = l sin ( 1 2 q ) ,
Described a and b are respectively Vector of unit length (a, b) component on X-axis and Y-axis.
6. high speed corner cutting method of following the glass cutting system based on tangent line according to claim 5 is characterized in that cutting error DR satisfies following relational expression:
7. high speed corner cutting method of following the glass cutting system based on tangent line according to claim 5 is characterized in that the cutting speed in feet per minute V of described access path is:
V = R R ~ V ~
Wherein, described For default interpolation circular arc standard radius, described Canonical reference speed under the default standard radius situation.
CN 201110049581 2011-03-01 2011-03-01 High-speed cutting method based on tangent following glass cutting system CN102180592B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104003610A (en) * 2014-05-15 2014-08-27 华南理工大学 Liquid crystal glass substrate double-cutter wheel cutting device and method
CN104276749A (en) * 2014-09-09 2015-01-14 深圳华南数控系统有限公司 Motion control method for later-cutting rounded glass
CN106444625A (en) * 2016-09-18 2017-02-22 合肥工业大学 Cutter head servo control method and cutter head servo control device for glass cutting machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08301630A (en) * 1995-05-02 1996-11-19 Bando Kiko Kk Fold-cutting apparatus for glass plate and glass plate processing apparatus having the same
CN101530951A (en) * 2008-03-13 2009-09-16 富士迈半导体精密工业(上海)有限公司 Brittle substrate and laser cutting method therefor
CN101844864A (en) * 2009-03-24 2010-09-29 北京京东方光电科技有限公司 Glass substrate and cutting method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08301630A (en) * 1995-05-02 1996-11-19 Bando Kiko Kk Fold-cutting apparatus for glass plate and glass plate processing apparatus having the same
CN101530951A (en) * 2008-03-13 2009-09-16 富士迈半导体精密工业(上海)有限公司 Brittle substrate and laser cutting method therefor
CN101844864A (en) * 2009-03-24 2010-09-29 北京京东方光电科技有限公司 Glass substrate and cutting method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104003610A (en) * 2014-05-15 2014-08-27 华南理工大学 Liquid crystal glass substrate double-cutter wheel cutting device and method
CN104276749A (en) * 2014-09-09 2015-01-14 深圳华南数控系统有限公司 Motion control method for later-cutting rounded glass
CN104276749B (en) * 2014-09-09 2018-05-04 安徽领帆智能装备有限公司 It is cut by laser the motion control method of Fillet Angle Glass
CN106444625A (en) * 2016-09-18 2017-02-22 合肥工业大学 Cutter head servo control method and cutter head servo control device for glass cutting machine
CN106444625B (en) * 2016-09-18 2019-03-12 合肥工业大学 A kind of the cutter head follow-up control method and its control device of glass cutting machine

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