CN112008252A - Automatic laser cutting power adjusting method - Google Patents
Automatic laser cutting power adjusting method Download PDFInfo
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- CN112008252A CN112008252A CN202010834817.4A CN202010834817A CN112008252A CN 112008252 A CN112008252 A CN 112008252A CN 202010834817 A CN202010834817 A CN 202010834817A CN 112008252 A CN112008252 A CN 112008252A
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- current
- laser cutting
- power
- speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention discloses a method for automatically adjusting laser cutting power, which comprises the following steps: s1: receiving a current motion instruction, wherein the current motion instruction comprises a current target speed and a current target power; s2: controlling the laser cutting equipment to move according to the current target speed according to the current movement instruction, and carrying out laser cutting according to the current target power; s3: measuring the current actual speed of the laser cutting equipment in the movement process of the laser cutting equipment; s4: judging whether the current actual speed is the same as the current target speed, if not, performing the step S3; s5: calculating the current actual power according to the current target speed, the current target power and the current actual speed; s6: and controlling the laser cutting equipment to carry out laser cutting according to the current actual power. The invention can better ensure the precision of laser cutting.
Description
Technical Field
The invention relates to the technical field of laser cutting, in particular to an automatic laser cutting power adjusting method.
Background
For a laser cutting device, if a certain cutting precision is to be achieved, not only is a movement path of the laser cutting device required to have higher movement precision, but also the energy of laser projected to the surface of a material to be cut is required to be consistent all the time. However, the laser cutting device inevitably has speed fluctuation during movement or a decrease in rotational linear speed when turning due to the existence of mechanical error, and when the laser cutting power of the laser cutting device is kept constant, the laser energy received by a portion with a low moving speed of TCP (tool center point) is higher than that of a portion with a high moving speed. Therefore, when the moving speed is slow, the excessive energy will cause the material to overheat and spread to the periphery thereof, so that the material cut is widened, and the forming precision of the cut is directly affected.
Disclosure of Invention
The invention aims to provide a method for automatically adjusting laser cutting power, which can better ensure the precision of laser cutting.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a method for automatically adjusting laser cutting power, comprising the following steps:
s1: receiving a current motion instruction, wherein the current motion instruction comprises a current target speed and a current target power;
s2: controlling the laser cutting equipment to move according to the current target speed according to the current movement instruction, and carrying out laser cutting according to the current target power;
s3: measuring the current actual speed of the laser cutting equipment in the movement process of the laser cutting equipment;
s4: judging whether the current actual speed is the same as the current target speed, and if not, performing step S3;
s5: calculating the current actual power according to the current target speed, the current target power and the current actual speed, wherein the calculation formula of the current actual power is as follows:
W＝W0+K(V-V0)/V0
wherein W is the current actual power, W0 is the current target power, K is the power coefficient, V is the current actual speed, and V0 is the current target speed;
s6: and controlling the laser cutting equipment to carry out laser cutting according to the current actual power.
Preferably, the value of the power coefficient is between 1 and 1.2.
Preferably, the step S4 further includes: if not, the process proceeds to step S3.
Preferably, the current target power is a preset initial power.
Preferably, the current actual speed is measured by an encoder.
Different from the prior art, the invention has the beneficial effects that: the target speed of the laser cutting equipment is set, the actual speed of the laser cutting equipment is measured, the actual power is calculated by combining the target speed and the actual speed, the dynamic adjustment of the laser cutting power along with the speed is realized, and the precision of laser cutting can be better ensured.
Drawings
Fig. 1 is a schematic flow chart of a method for automatically adjusting laser cutting power according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the method for automatically adjusting laser cutting power according to the embodiment of the present invention includes the following steps:
s1: a current movement command is received, the current movement command including a current target speed and a current target power.
In this embodiment, the current target power is the initial power set in advance. That is, each time a motion command is received, the current target power is the initial power.
S2: and controlling the laser cutting equipment to move according to the current target speed according to the current movement instruction, and carrying out laser cutting according to the current target power.
The mechanism for controlling the laser cutting equipment to move controls the laser cutting equipment to move according to the current target speed according to the current movement instruction, and the power of the laser output by the laser cutting equipment is the current target power.
S3: the current actual speed of the laser cutting device is measured during its movement.
In this embodiment, the current actual speed is measured by an encoder. The driving mechanism of the laser cutting equipment is provided with an encoder, and the actual speed of the laser cutting equipment can be measured in real time through the encoder.
S4: and judging whether the current actual speed is the same as the current target speed, and if not, performing the step S5.
S5: calculating the current actual power according to the current target speed, the current target power and the current actual speed, wherein the calculation formula of the current actual power is as follows:
W＝W0+K(V-V0)/V0
wherein, W is the current actual power, W0 is the current target power, K is the power coefficient, V is the current actual speed, and V0 is the current target speed.
The power coefficient is a constant, and in the embodiment, the value of the power coefficient is between 1 and 1.2. The above calculation formula can be expressed by a power-speed mathematical model, and the current target speed, the current target power and the current actual speed are input into the power-speed mathematical model to obtain the current actual power. It can be seen from the power-speed mathematical model that when the current actual speed is greater than the current target speed, that is, the moving speed of the laser cutting device becomes fast, the current actual power is greater than the current target power, the laser energy received by the cut portion increases, and when the current actual speed is less than the current target speed, that is, the moving speed of the laser cutting device becomes slow, the laser energy received by the cut portion decreases, and the current actual power is less than the current target power.
S6: and controlling the laser cutting equipment to carry out laser cutting according to the current actual power.
And after the current actual power is obtained, the laser cutting equipment is still controlled to move according to the current target speed, but the laser cutting equipment performs laser cutting according to the current actual power.
In this embodiment, step S4 further includes: if not, the process proceeds to step S3.
Through the mode, the automatic laser cutting power adjusting method provided by the embodiment of the invention can be used for calculating the actual power by setting the target speed of the laser cutting equipment and measuring the actual speed of the laser cutting equipment and combining the target speed and the actual speed, so that the dynamic adjustment of the laser cutting power along with the speed is realized, and the laser cutting precision can be better ensured.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A method for automatically adjusting laser cutting power is characterized by comprising the following steps:
s1: receiving a current motion instruction, wherein the current motion instruction comprises a current target speed and a current target power;
s2: controlling the laser cutting equipment to move according to the current target speed according to the current movement instruction, and carrying out laser cutting according to the current target power;
s3: measuring the current actual speed of the laser cutting equipment in the movement process of the laser cutting equipment;
s4: judging whether the current actual speed is the same as the current target speed, and if not, performing step S3;
s5: calculating the current actual power according to the current target speed, the current target power and the current actual speed, wherein the calculation formula of the current actual power is as follows:
W＝W0+K(V-V0)/V0
wherein W is the current actual power, W0 is the current target power, K is the power coefficient, V is the current actual speed, and V0 is the current target speed;
s6: and controlling the laser cutting equipment to carry out laser cutting according to the current actual power.
2. The method for automatically adjusting laser cutting power according to claim 1, wherein the value of the power coefficient is between 1 and 1.2.
3. The method for automatically adjusting laser cutting power according to claim 2, wherein the step S4 further comprises: if not, the process proceeds to step S3.
4. The method of claim 3, wherein the current target power is a preset initial power.
5. The method of claim 3, wherein the current actual speed is measured by an encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834817.4A CN112008252A (en) | 2020-08-19 | 2020-08-19 | Automatic laser cutting power adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010834817.4A CN112008252A (en) | 2020-08-19 | 2020-08-19 | Automatic laser cutting power adjusting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112008252A true CN112008252A (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010834817.4A Pending CN112008252A (en) | 2020-08-19 | 2020-08-19 | Automatic laser cutting power adjusting method |
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| Country | Link |
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| CN (1) | CN112008252A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799518A (en) * | 2022-05-20 | 2022-07-29 | 武汉逸飞激光股份有限公司 | Laser welding control method and device for cylindrical battery cell seal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262612A (en) * | 1992-04-29 | 1993-11-16 | Edgewise Tools, Inc. | Computer-controlled laser cutter |
| US6085122A (en) * | 1997-05-30 | 2000-07-04 | Dtm Corporation | End-of-vector laser power control in a selective laser sintering system |
| CN101342636A (en) * | 2008-08-11 | 2009-01-14 | 昆山思拓机器系统有限公司 | Laser processing system |
| CN101862903A (en) * | 2010-03-30 | 2010-10-20 | 深圳市大族激光科技股份有限公司 | Laser processing control method and system and laser cutting machine processing system |
| CN103394810A (en) * | 2013-08-12 | 2013-11-20 | 苏州德龙激光股份有限公司 | Laser cutting method and device thereof |
| CN106141450A (en) * | 2016-07-21 | 2016-11-23 | 成都福誉科技有限公司 | A kind of CO2cut Poewr control method and system |
-
2020
- 2020-08-19 CN CN202010834817.4A patent/CN112008252A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262612A (en) * | 1992-04-29 | 1993-11-16 | Edgewise Tools, Inc. | Computer-controlled laser cutter |
| US6085122A (en) * | 1997-05-30 | 2000-07-04 | Dtm Corporation | End-of-vector laser power control in a selective laser sintering system |
| CN101342636A (en) * | 2008-08-11 | 2009-01-14 | 昆山思拓机器系统有限公司 | Laser processing system |
| CN101862903A (en) * | 2010-03-30 | 2010-10-20 | 深圳市大族激光科技股份有限公司 | Laser processing control method and system and laser cutting machine processing system |
| CN103394810A (en) * | 2013-08-12 | 2013-11-20 | 苏州德龙激光股份有限公司 | Laser cutting method and device thereof |
| CN106141450A (en) * | 2016-07-21 | 2016-11-23 | 成都福誉科技有限公司 | A kind of CO2cut Poewr control method and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799518A (en) * | 2022-05-20 | 2022-07-29 | 武汉逸飞激光股份有限公司 | Laser welding control method and device for cylindrical battery cell seal |
| CN114799518B (en) * | 2022-05-20 | 2022-09-30 | 武汉逸飞激光股份有限公司 | Laser welding control method and device for cylindrical battery cell seal |
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Application publication date: 20201201 |