CN103111760B - A kind of Z axis idle motion copying control method, system and laser cutting machine - Google Patents

A kind of Z axis idle motion copying control method, system and laser cutting machine Download PDF

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Publication number
CN103111760B
CN103111760B CN201110366288.0A CN201110366288A CN103111760B CN 103111760 B CN103111760 B CN 103111760B CN 201110366288 A CN201110366288 A CN 201110366288A CN 103111760 B CN103111760 B CN 103111760B
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laser head
anchor point
span
height
axis
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CN201110366288.0A
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CN103111760A (en
Inventor
欧阳征定
向水平
邓超
侯勇
陈根余
陈燚
高云峰
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Han s Laser Technology Industry Group Co Ltd
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Han s Laser Technology Industry Group Co Ltd
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Abstract

The present invention is applicable to technical field of laser processing, provide a kind of Z axis idle motion copying control method, system and laser cutting machine, described Z axis idle motion copying control method comprises the following steps: calculate the span between described laser head current anchor point and next anchor point; Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to precalculated position.The present invention first calculates the span between laser head current anchor point 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 precalculated position, and this process laser head walking fluency is good.The application of this Z axis idle motion copying control method and system is comparatively extensive, especially can be used for laser cutting machine.

Description

A kind of Z axis idle motion copying control method, system and laser cutting machine
Technical field
The invention belongs to technical field of laser processing, particularly relate to a kind of Z axis idle motion copying control method, system and laser cutting machine.
Background technology
In conventional laser process from a profile terminate to exist between next profile one close laser machine tool empty walk process--idle motion.This idle motion first raises Z axis to home under normal circumstances, and the X that then links, Y-axis, to next anchor point, are then opened the servo-actuated Z axis that allows and reached cutting-height.Under this control mode, laser head walking fluency is not good, and multipoint positioning causes lathe empty stroke time long.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of Z axis idle motion copying control method, is intended to solve the problem that laser head walking fluency under existing control mode is not good.
The embodiment of the present invention is achieved in that a kind of Z axis idle motion copying control method, for the laser head of positioning machine tool, said method comprising the steps of:
Calculate the span between described laser head current anchor point and next anchor point;
Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to precalculated position.
Another object of the embodiment of the present invention is to provide a kind of Z axis idle motion contour control system, and for the laser head of positioning machine tool, described system comprises:
Computing module, for calculating the span between described laser head current anchor point and next anchor point;
Interpolation module, for carrying out X, Y, Z three-shaft linkage moving interpolation according to described span, makes described laser head move to precalculated position.
Another object of the embodiment of the present invention is to provide a kind of laser cutting machine being provided with above-mentioned Z axis idle motion contour control system.
The embodiment of the present invention first calculates the span between laser head current anchor point 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 precalculated position, and this process laser head walking fluency is good.The application of this Z axis idle motion copying control method and system is comparatively extensive, especially can be used for laser cutting machine.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the Z axis idle motion copying control method that the embodiment of the present invention provides;
Fig. 2 is the laser head trajectory diagram that formed of method controlled motion as shown in Figure 1;
Fig. 3 is the process flow diagram after Fig. 1 optimizes;
Fig. 4 is the laser head trajectory diagram that formed of method controlled motion as shown in Figure 3;
Fig. 5 is the structure principle chart of the Z axis idle motion contour control system that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, 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, be not intended to limit the present invention.
The embodiment of the present invention first calculates the span between laser head current anchor point 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 precalculated position, and this process laser head walking fluency is good.
The Z axis idle motion copying control method that the embodiment of the present invention provides comprises the following steps:
Calculate the span between described laser head current anchor point and next anchor point;
Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to precalculated position.
The Z axis idle motion contour control system that the embodiment of the present invention provides comprises:
Computing module, for calculating the span between described laser head current anchor point and next anchor point;
Interpolation module, for carrying out X, Y, Z three-shaft linkage moving interpolation according to described span, makes described laser head move to precalculated position.
The laser cutting machine that the embodiment of the present invention provides is provided with above-mentioned Z axis idle motion contour control system.
For CNC machine cutting flat, realization of the present invention is described in detail below.
Fig. 1 shows the realization flow of the Z axis idle motion copying control method that the embodiment of the present invention provides, and details are as follows:
In step S101, calculate the span between described laser head current anchor point and next anchor point.
In the embodiment of the present invention, CNC machine has one in order to the laser head 2 of cutting flat 1, needs to position this laser head 2 before cutting.For the span L between laser head described in accurate Calculation 2 current anchor point 11 and next anchor point 12, the X/Y value of described laser head current anchor point 11 need be stored, and pre-read the X/Y value of next anchor point 12 of described laser head.
Aforementioned span L is after laser head current anchor point 11 is projected on XY plane with next anchor point 12, distance between the two.Wherein, the X/Y value of laser head current anchor point 11 is projected on the coordinate figure of XY plane for this anchor point; Similarly, the X/Y value of next anchor point 12 of laser head is projected on the coordinate figure of XY plane for this anchor point.
Certainly, in storing the X/Y value of described laser head current anchor point 11, and before pre-reading the X/Y value of next anchor point 12 of described laser head, obtaining and first judging whether to perform quick position instruction and G00 instruction.If user selects to perform, then call CC_JUMP.DLL, with laser head described in quick position, as shown in Figure 2,3.
In step s 102, carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to precalculated position.
Moving interpolation described in the embodiment of the present invention is preferably SPL moving interpolation, and laser head 2 walking will be more smooth.When described span L is less than the first setpoint distance P139, Z axis is lifted maximum height and be set to the first height P135; When described span L is more than or equal to the first setpoint distance P139 and is less than or equal to the second setpoint distance P140, Z axis is lifted maximum height and be set to the second height P136; When described span L is greater than the second setpoint distance P140, Z axis is lifted maximum height and be set to third high degree P137.Correspondingly, described 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 flat board smooth not.In addition, each anchor point of laser head 2 is P105 to the distance on dull and stereotyped 1 surface, as shown in Figure 3,4.
Wherein, described first setpoint distance P139 is preferably 150 ~ 250mm, and the second setpoint distance P140 is preferably 450 ~ 550mm; 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, there is a decline before next anchor point 12 and follow height P134, described decline follow height P134 be greater than rising follow height P133, the projection near each anchor point can be avoided like this to touch laser head 2, and loss prevention effect is better.Because current anchor point 11 is through one-time positioning, described rising can be made to follow height P133 and comparatively to decline and follow height P134 little 6 ~ 10mm, with faster locating laser head 2.
Those having ordinary skill in the art will appreciate that, realize the hardware that all or part of step in above-described embodiment method can carry out instruction relevant by program to complete, 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 motion contour control system that the embodiment of the present invention provides, and for convenience of description, illustrate only the part relevant to the embodiment of the present invention.
The Z axis idle motion 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 computing module 13 for calculating the span L between described laser head 2 current anchor point 11 and next anchor point 12 and 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 principle of work of above-mentioned modules (unit) as mentioned before, is no longer repeated herein.The unit (module) of this Z axis idle motion contour control system can be the unit of software unit, hardware cell or software and hardware combining, software unit part can be stored in a computer read/write memory medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. a Z axis idle motion copying control method, for the laser head of positioning machine tool, is characterized in that, said method comprising the steps of:
Calculate the span between described laser head current anchor point and next anchor point;
Carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to precalculated position;
Describedly carry out X, Y, Z three-shaft linkage moving interpolation according to described span, make described laser head move to precalculated position and comprise: when described span is less than the first setpoint distance, Z axis is lifted maximum height and be set to the first height; When described span is more than or equal to the first setpoint distance and is less than or equal to the second setpoint distance, Z axis is lifted maximum height and be set to the second height; When described span is greater than the second setpoint distance, Z axis is lifted maximum height and be set to third high degree; Wherein said first height, the second height, third high degree increase successively.
2. Z axis idle motion copying control method as claimed in claim 1, it is characterized in that, described moving interpolation is SPL moving interpolation.
3. Z axis idle motion copying control method as claimed in claim 1 or 2, is characterized in that, also comprise before the step of the span between the described laser head current anchor point of described calculating and next anchor point:
Store the X/Y value of described laser head current anchor point, and pre-read the X/Y value of described next anchor point of laser head.
4. Z axis idle motion copying control method as claimed in claim 3, it is characterized in that, described lathe is CNC machine; The X/Y value of the described laser head current anchor point of described storage, and also comprise before pre-reading the step of the X/Y value of described next anchor point of laser head:
Judge whether to perform quick position instruction.
5. Z axis idle motion copying control method as claimed in claim 1, it is characterized in that, described 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 third high degree is 25 ~ 35mm.
6. Z axis idle motion copying control method as claimed in claim 1 or 2, it is characterized in that, described laser head have after current anchor point a rising follow height, had before next anchor point a decline follow height, described decline follow highly be greater than rising follow height.
7. Z axis idle motion copying control method as claimed in claim 6, is characterized in that, described decline is followed highly comparatively to rise and followed highly large 6 ~ 10mm.
8. a Z axis idle motion contour control system, for the laser head of positioning machine tool, is characterized in that, described system comprises:
Computing module, for calculating the span between described laser head current anchor point and next anchor point;
Interpolation module, for when described span is less than the first setpoint distance, lifts maximum height and is set to the first height by Z axis; When described span is more than or equal to the first setpoint distance and is less than or equal to the second setpoint distance, Z axis is lifted maximum height and be set to the second height; When described span is greater than the second setpoint distance, Z axis is lifted maximum height and be set to third high degree; Wherein said first height, the second height, third high degree increase successively.
9. one kind is provided with the laser cutting machine of Z axis idle motion contour control system as claimed in claim 8.
CN201110366288.0A 2011-11-17 2011-11-17 A kind of Z axis idle motion copying control method, system and laser cutting machine Expired - Fee Related CN103111760B (en)

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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
CN104759760B (en) * 2015-03-21 2016-09-21 温州大学 Point cloud describes the surface array micro structure laser processing of curve surface work pieces
CN106853558A (en) * 2015-12-08 2017-06-16 彭翔 cold laser fine processing method and system
JP6918603B2 (en) 2017-06-28 2021-08-11 コマツ産機株式会社 Control method of 3D laser machine and 3D 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
CN108581191B (en) * 2018-04-10 2020-04-28 上海柏楚电子科技股份有限公司 Method for achieving laser head light-stopping idle movement obstacle avoidance through laser cutting path planning
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
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
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
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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