CN103111760A - Z-axis idle stroke copying control method and system and laser cutting machine - Google Patents
Z-axis idle stroke copying control method and system and laser cutting machine Download PDFInfo
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- CN103111760A CN103111760A CN2011103662880A CN201110366288A CN103111760A CN 103111760 A CN103111760 A CN 103111760A CN 2011103662880 A CN2011103662880 A CN 2011103662880A CN 201110366288 A CN201110366288 A CN 201110366288A CN 103111760 A CN103111760 A CN 103111760A
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Abstract
The invention is applicable to the field of laser processing technology and provides a Z-axis idle stroke copying control method, a system and a laser cutting machine. The Z-axis idle stroke copying control method includes a first step of calculating the span between a current locating point of a laser head and a next locating point of the laser head, and a second step of carrying out X-axis, Y-axis and Z-axis three-axis linkage interpolation motion according to the span and enabling the laser head to be moved to a preset position. According to the Z-axis idle stroke copying control method, firstly, the span between the current locating point of the laser head and the next locating point of the laser head is calculated, and then the X-axis, Y-axis and Z-axis three-axis linkage interpolation motion is carried out according to the span to enable the laser head to be moved to the preset position. In the process, the laser head is good in moving fluency. The Z-axis idle stroke copying control method and the system are wide applied and particularly suitable for the laser cutting machine.
Description
Technical field
The invention belongs to technical field of laser processing, relate in particular to a kind of Z axis idle stroke copying control method, system and laser cutting machine.
Background technology
Finish to close the process that the laser machine tool sky is walked--idle stroke to having one between next profile since a profile in the conventional laser process.Generally this idle stroke is first raised Z axis to home, and then the X that then links, Y-axis are opened the servo-actuated Z axis that allows and reached cutting-height to next anchor point.Under this control mode, laser head walking fluency is not good, and multipoint positioning causes the lathe empty stroke time long.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of Z axis idle stroke copying control method, is intended to solve the not good problem of laser head walking fluency under existing control mode.
The embodiment of the present invention is achieved in that a kind of Z axis idle stroke copying control method, is used for the laser head of positioning machine tool, said method comprising the steps of:
Calculate the span between the current anchor point of described laser head and next anchor point;
Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to the precalculated position.
Another purpose of the embodiment of the present invention is to provide a kind of Z axis idle stroke contour control system, is used for the laser head of positioning machine tool, and described system comprises:
Computing module is used for calculating the span between the current anchor point of described laser head and next anchor point;
Interpolation module is used for carrying out X, Y, Z three-shaft linkage moving interpolation according to described span, makes described laser head move to the precalculated position.
Another purpose of the embodiment of the present invention is to provide a kind of laser cutting machine that above-mentioned Z axis idle stroke contour control system is installed.
The embodiment of the present invention is first calculated the span between the current anchor point of laser head and next anchor point, then carries out X, Y, Z three-shaft linkage moving interpolation according to this span, makes described laser head move to the precalculated position, and this process laser head walking fluency is good.This Z axis idle stroke copying control method and system are used comparatively extensive, especially can be used for laser cutting machine.
Description of drawings
Fig. 1 is the realization flow figure of the Z axis idle stroke copying control method that provides of the embodiment of the present invention;
Fig. 2 is that laser head is by the formed trajectory diagram of method controlled motion shown in Figure 1;
Fig. 3 is the flow chart after Fig. 1 optimizes;
Fig. 4 is that laser head is by the formed trajectory diagram of method controlled motion shown in Figure 3;
Fig. 5 is the structure principle chart of the Z axis idle stroke contour control system that provides of the embodiment of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention is first calculated the span between the current anchor point of laser head and next anchor point, then carries out X, Y, Z three-shaft linkage moving interpolation according to this span, makes described laser head move to the precalculated position, and this process laser head walking fluency is good.
The Z axis idle stroke copying control method that the embodiment of the present invention provides comprises the following steps:
Calculate the span between the current anchor point of described laser head and next anchor point;
Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to the precalculated position.
The Z axis idle stroke contour control system that the embodiment of the present invention provides comprises:
Computing module is used for calculating the span between the current anchor point of described laser head and next anchor point;
Interpolation module is used for carrying out X, Y, Z three-shaft linkage moving interpolation according to described span, makes described laser head move to the precalculated position.
The laser cutting machine that the embodiment of the present invention provides is equipped with above-mentioned Z axis idle stroke contour control system.
The below is described in detail realization of the present invention as an example of CNC lathe cutting flat example.
Fig. 1 shows the realization flow of the Z axis idle stroke copying control method that the embodiment of the present invention provides, and details are as follows:
In step S101, calculate the span between the current anchor point of described laser head and next anchor point.
In the embodiment of the present invention, the CNC lathe has a laser head 2 in order to cutting flat 1, needs before cutting this laser head 2 is positioned.Be the span L between the current anchor point 11 of the described laser head 2 of accurate Calculation and next anchor point 12, need the X/Y value of the current anchor point 11 of the described laser head of storage, and read in advance the X/Y value of next anchor point 12 of described laser head.
Aforementioned span L is the current anchor point of laser head 11 with next anchor point 12 projection behind the XY plane, distance between the two.Wherein, the X/Y value of the current anchor point 11 of laser head is that this anchor point projection is in the coordinate figure on XY plane; Similarly, the X/Y value of next anchor point 12 of laser head is that this anchor point projection is in the coordinate figure on XY plane.
Certainly, in the X/Y value of the current anchor point 11 of the described laser head of storage, and before reading in advance the X/Y value of next anchor point 12 of described laser head, getting and first judging whether to carry out quick positioning instruction is the G00 instruction.If the user selects to carry out, call CC_JUMP.DLL, with the described laser head in quick location, as shown in Fig. 2,3.
In step S102, carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to the precalculated position.
Moving interpolation described in the embodiment of the present invention is preferably the SPL moving interpolation, and laser head 2 walkings will be more smooth., Z axis is lifted maximum height be made as the first height P135 during less than the first setpoint distance P139 when described span L; , Z axis is lifted maximum height be made as the second height P136 during more than or equal to the first setpoint distance P139 and less than or equal to the second setpoint distance P140 when described span L; , Z axis is lifted maximum height be made as third high degree P137 during greater than the second setpoint distance P140 when described span L.Correspondingly, described the first height P135, the second height P136, third high degree P137 increase successively, in case damage laser head 2 when carrying out the location of large span on smooth not flat board.In addition, laser head 2 each anchor points to the distance on dull and stereotyped 1 surface is P105, as shown in Fig. 3,4.
Wherein, described the first setpoint distance P139 is preferably 150～250mm, and the second setpoint distance P140 is preferably 450～550mm; The first height P135 is preferably 5～15mm, and the second height P136 is preferably 15～25mm, and third high degree P137 is preferably 25～35mm.
Usually, described laser head 2 has a rising and follows height P133 after current anchor point 11, had a decline and follow height P134 before next anchor point 12, described decline is followed height P134 and is followed height P133 greater than rising, can avoid so near the projection of each anchor point to touch laser head 2, the loss prevention effect is better.Because current anchor point 11 has passed through one-time positioning, can make described rising follow height P133 and descend and follow height P134 little 6～10mm, with faster locating laser head 2.
Those having ordinary skill in the art will appreciate that, realize that all or part of step in above-described embodiment method can come the relevant hardware of instruction complete by program, this program can be stored in a computer read/write memory medium, as ROM/RAM, disk, CD etc.
Fig. 5 shows the structural principle of the Z axis idle stroke contour control system that the embodiment of the present invention provides, and for convenience of description, only shows the part relevant to the embodiment of the present invention.
The Z axis idle stroke contour control system that the embodiment of the present invention provides is in order to the laser head 2 of positioning machine tool, it comprises be used to the computing module 13 that calculates the span L between the current anchor point 11 of described laser head 2 and next anchor point 12 and is used for carrying out X, Y, Z three-shaft linkage moving interpolation according to described span L, makes described laser head 2 move to the interpolation module 14 in precalculated position.
The operation principle of above-mentioned modules (unit) is no longer given unnecessary details as mentioned before herein.The unit (module) of this Z axis idle stroke contour control system can be the unit of software unit, hardware cell or software and hardware combining, the software unit part can be stored in a computer read/write memory medium, as ROM/RAM, disk, CD etc.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. Z axis idle stroke copying control method is used for the laser head of positioning machine tool, it is characterized in that, said method comprising the steps of:
Calculate the span between the current anchor point of described laser head and next anchor point;
Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to the precalculated position.
2. Z axis idle stroke copying control method as claimed in claim 1, is characterized in that, described moving interpolation is the SPL moving interpolation.
3. Z axis idle stroke copying control method as claimed in claim 1 or 2, is characterized in that, also comprises before the step of the span between the current anchor point of the described laser head of described calculating and next anchor point:
Store the X/Y value of the current anchor point of described laser head, and read in advance the X/Y value of described next anchor point of laser head.
4. Z axis idle stroke copying control method as claimed in claim 3, is characterized in that, described lathe is the CNC lathe; The X/Y value of the current anchor point of the described laser head of described storage, and read in advance also to comprise before the step of X/Y value of described next anchor point of laser head:
Judge whether to carry out quick positioning instruction.
5. Z axis idle stroke copying control method as claimed in claim 1 or 2, is characterized in that, describedly carries out X, Y, Z three-shaft linkage moving interpolation according to described span, and described laser head is moved in the step in precalculated position:
, Z axis is lifted maximum height be made as the first height during less than the first setpoint distance when described span;
, Z axis is lifted maximum height be made as the second height during more than or equal to the first setpoint distance and less than or equal to the second setpoint distance when described span;
, Z axis is lifted maximum height be made as the third high degree during greater than the second setpoint distance when described span;
Wherein said the first height, the second height, third high degree increase successively.
6. Z axis idle stroke copying control method as claimed in claim 5, is characterized in that, described the first setpoint distance is 150～250mm, and the second setpoint distance is 450～550mm; First is highly 5～15mm, and second is highly 15～25mm, and the third high degree is 25～35mm.
7. Z axis idle stroke copying control method as claimed in claim 1 or 2, it is characterized in that, described laser head has a rising and follows height after current anchor point, had a decline and follow height before next anchor point, and described decline is followed height and followed height greater than rising.
8. Z axis idle stroke copying control method as claimed in claim 7, is characterized in that, described decline is followed highly to rise and followed highly large 6～10mm.
9. Z axis idle stroke contour control system is used for the laser head of positioning machine tool, it is characterized in that, described system comprises:
Computing module is used for calculating the span between the current anchor point of described laser head and next anchor point;
Interpolation module is used for carrying out X, Y, Z three-shaft linkage moving interpolation according to described span, makes described laser head move to the precalculated position.
10. laser cutting machine that Z axis idle stroke contour control system as claimed in claim 9 is installed.
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| CN201110366288.0A CN103111760B (en) | 2011-11-17 | 2011-11-17 | A kind of Z axis idle motion copying control method, system and laser cutting machine |
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| CN201110366288.0A CN103111760B (en) | 2011-11-17 | 2011-11-17 | A kind of Z axis idle motion copying control method, system and laser cutting machine |
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| CN103111760B CN103111760B (en) | 2015-08-05 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104759760A (en) * | 2015-03-21 | 2015-07-08 | 温州大学 | Laser processing method of surface array microstructure of point cloud description curve workpiece |
| CN106853558A (en) * | 2015-12-08 | 2017-06-16 | 彭翔 | cold laser fine processing method and system |
| CN108393591A (en) * | 2018-02-26 | 2018-08-14 | 佛山市宏石激光技术有限公司 | A kind of control method for realizing high-efficiency dry running in laser pipe cutter |
| CN108581191A (en) * | 2018-04-10 | 2018-09-28 | 上海柏楚电子科技股份有限公司 | A method of laser cutting path planning realizes that laser head stops light sky and moves avoidance |
| CN108838557A (en) * | 2018-06-27 | 2018-11-20 | 伯纳激光科技有限公司 | The cutting process method at CNC controlling party tube edge angle |
| CN110545949A (en) * | 2017-06-28 | 2019-12-06 | 小松产机株式会社 | Three-dimensional laser processing machine and control method for three-dimensional laser processing machine |
| CN111026036A (en) * | 2019-12-26 | 2020-04-17 | 大族激光科技产业集团股份有限公司 | Laser head idle moving control method and control system |
| CN111644734A (en) * | 2020-04-29 | 2020-09-11 | 成都华远焊割设备有限公司 | Numerical control plasma cutting method, device, computer equipment and storage medium |
| CN114523195A (en) * | 2022-02-24 | 2022-05-24 | 大族激光科技产业集团股份有限公司 | Laser head idle moving control method and device and readable storage medium |
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Cited By (16)
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| 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 |
| 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 |
| CN104759760A (en) * | 2015-03-21 | 2015-07-08 | 温州大学 | Laser processing method of surface array microstructure of point cloud description curve workpiece |
| CN106853558A (en) * | 2015-12-08 | 2017-06-16 | 彭翔 | cold laser fine processing method and system |
| CN110545949A (en) * | 2017-06-28 | 2019-12-06 | 小松产机株式会社 | Three-dimensional laser processing machine and control method for three-dimensional laser processing machine |
| US11504806B2 (en) | 2017-06-28 | 2022-11-22 | Komatsu Industries Corporation | Three-dimensional laser machine and method for controlling the three-dimensional laser machine |
| CN108393591B (en) * | 2018-02-26 | 2020-03-31 | 佛山市宏石激光技术有限公司 | Control method for realizing efficient idle running in laser pipe cutting machine |
| CN108393591A (en) * | 2018-02-26 | 2018-08-14 | 佛山市宏石激光技术有限公司 | A kind of control method for realizing high-efficiency dry running in laser pipe cutter |
| CN108581191A (en) * | 2018-04-10 | 2018-09-28 | 上海柏楚电子科技股份有限公司 | A method of laser cutting path planning realizes that laser head stops light sky and moves avoidance |
| CN108838557A (en) * | 2018-06-27 | 2018-11-20 | 伯纳激光科技有限公司 | The cutting process method at CNC controlling party tube edge angle |
| CN111026036A (en) * | 2019-12-26 | 2020-04-17 | 大族激光科技产业集团股份有限公司 | Laser head idle moving control method and control system |
| CN111026036B (en) * | 2019-12-26 | 2023-02-28 | 大族激光科技产业集团股份有限公司 | Laser head idle movement control method and control system |
| CN111644734A (en) * | 2020-04-29 | 2020-09-11 | 成都华远焊割设备有限公司 | Numerical control plasma cutting method, device, computer equipment and storage medium |
| CN111644734B (en) * | 2020-04-29 | 2021-12-24 | 成都华远焊割设备有限公司 | Numerical control plasma cutting method, device, computer equipment and storage medium |
| CN114523195A (en) * | 2022-02-24 | 2022-05-24 | 大族激光科技产业集团股份有限公司 | Laser head idle moving control method and device and readable storage medium |
| CN114523195B (en) * | 2022-02-24 | 2023-11-28 | 大族激光科技产业集团股份有限公司 | Laser head idle movement control method and device and readable storage medium |
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