CN118492647B - Furniture laser engraving control system - Google Patents
Furniture laser engraving control system Download PDFInfo
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- CN118492647B CN118492647B CN202410962000.3A CN202410962000A CN118492647B CN 118492647 B CN118492647 B CN 118492647B CN 202410962000 A CN202410962000 A CN 202410962000A CN 118492647 B CN118492647 B CN 118492647B
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- 238000010147 laser engraving Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 claims description 17
- 238000013341 scale-up Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- 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
- B23K26/362—Laser etching
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The application provides a furniture laser engraving control system which comprises a furniture placing table module, a laser engraving head module, a moving platform module and a control module; the furniture placing table module is used for placing furniture to be engraved; the laser engraving head module is used for emitting laser to perform laser engraving; the motion platform module is used for controlling the relative motion of the furniture placing table module and the laser engraving head module; the control module is connected with the motion platform module and used for controlling the motion of the motion platform module, and meanwhile, the control module is connected with the laser engraving head module and used for controlling the laser emission of the laser engraving head module; the motion platform module comprises a plurality of connected motion platforms with the same motion freedom degree and the same motion precision, and the motion platform module has the same motion freedom degree as the motion platform; the number of degrees of freedom of each motion platform is at least 2.
Description
Technical Field
The application relates to the field of furniture production control, in particular to a furniture laser engraving control system.
Background
In modern furniture production, the processing requirements for high precision, high efficiency and high design flexibility are increasingly high. The laser engraving can well meet the requirements, has various advantages in furniture production, such as small diameter of laser beam and high-precision processing; the laser engraving speed is high, and the working efficiency is effectively improved; the engraving machine can be used for engraving various materials such as timber, density boards, leather, acrylic and the like, can also be used for designing various figures and characters on a computer, and is very flexible, so that the engraving machine is widely applied to furniture processing and production.
However, in the laser engraving control system disclosed in the prior art, such as patent document CN108227636A, CN112433508A, CN103365228a, in order to realize the movement of the laser head, only one driving motor is usually used to drive the laser head in one degree of freedom, and since the laser engraving has the characteristic of fast movement speed, in order to satisfy the fast movement of the laser head, frequent start-stop or reverse rotation of a single driving motor occurs in a short time, and this can greatly increase motor aging or motor temperature rise, thereby causing adverse effects.
Disclosure of Invention
The application aims to provide a furniture laser engraving control system so as to better solve the problems in the background technology.
In order to achieve the above purpose, the present application provides the following technical solutions:
a furniture laser engraving control system comprising:
the furniture placing table module, the laser engraving head module, the moving platform module and the control module;
The furniture placing table module is used for placing furniture to be engraved;
the laser engraving head module is used for emitting laser to perform laser engraving;
the motion platform module is used for controlling the relative motion of the furniture placing table module and the laser engraving head module;
the control module is connected with the motion platform module and used for controlling the motion of the motion platform module, and meanwhile, the control module is connected with the laser engraving head module and used for controlling the laser emission of the laser engraving head module;
the motion platform module comprises a plurality of connected motion platforms with the same motion freedom degree and the same motion precision, and the motion platform module has the same motion freedom degree as the motion platform; the number of degrees of freedom of each motion platform is at least 2.
Further, each degree of freedom of each motion platform is driven by a separate motor;
The control module is configured to perform a furniture laser engraving control method comprising the steps of:
step S10, the control module plans the next motion of the motion platform module in each degree of freedom direction according to the pattern to be engraved WhereinRepresenting the next movement in the direction of the i-th degree of freedom,，The degree of freedom of the motion platform module;
Step S20, for each movement The control module selects the motor according to the followingFor performing movements：
Wherein the method comprises the steps ofRepresents a driving motor for realizing the motion of the ith degree of freedom in the jth motion platform,，The number of the motion platforms;
Motor for representing current distance Last stall or reverse (relative to the current execution of motionFor a turn of (a), the time of the turn,Indicating motorPerforming movementsThe j-th motion platform deviates from the motion center in the motion direction of the i-th degree of freedom; The scale-up parameter is indicated as such, Representing a threshold parameter;
step S30, if the pattern is not engraved, the process returns to step S10.
Further, a furniture fixing device for fixing furniture is arranged on the furniture placing table module.
Further, the furniture placing table module is arranged on the moving platform module, and the moving platform module is used for controlling the furniture placing table module to move.
Further, the plurality of moving platforms are connected in a superposition mode, and the furniture placing table module is arranged on the uppermost moving platform.
Further, the laser engraving head module is arranged on the moving platform module, and the moving platform module is used for controlling the laser engraving head module to move.
Further, the plurality of moving platforms are connected in a superposition mode, and the laser engraving head module is arranged on the lowest moving platform.
Further, the number of degrees of freedom of the motion stages is 2, and each motion stage can move in translation along a first direction of a horizontal plane and move in translation along a second direction perpendicular to the first direction in the horizontal plane.
Further, the number of degrees of freedom of the motion platform is 3, including two translational degrees of freedom in a plane and one rotational degree of freedom to rotate along a vertical axis.
Further, the motion platform module comprises 2 or 3 motion platforms with the same structure.
The invention has the beneficial effects that: in the process of furniture laser engraving, the occurrence of frequent start-stop or reverse rotation of a single driving motor in a short time can be reduced, and the occurrence of the condition that a single motion platform exceeds a motion limit range can be reduced.
Drawings
Fig. 1 is a schematic flow chart of a furniture laser engraving control method.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
The furniture laser engraving control system comprises a furniture placing table module, a laser engraving head module, a moving platform module and a control module. The furniture placing table module is used for placing furniture to be engraved, and a furniture fixing device used for fixing the furniture is arranged on the furniture placing table module. The laser engraving head module is used for emitting laser to perform laser engraving. The motion platform module is used for controlling the relative motion of the furniture placing table module and the laser engraving head module. In an alternative embodiment, the furniture placement table module is arranged on a motion platform module, and the motion platform module is used for controlling the furniture placement table module to move, so that the laser engraving head module keeps fixed in position; or the laser engraving head module is arranged on the moving platform module, and the moving platform module is used for controlling the movement of the laser engraving head module and controlling the furniture placing table module to keep fixed in position at the moment. The control module is connected with the motion platform module and used for controlling the motion platform module to move. Meanwhile, the control module is connected with the laser engraving head module and is used for controlling the laser emission of the laser engraving head module.
The motion platform module comprises a plurality of connected motion platforms with the same motion freedom degree and the same motion precision, and the motion platform module has the same motion freedom degree as the motion platform. The term "having the same degree of freedom of movement" as used herein means that the degrees of freedom are the same and each degree of freedom is also the same. Specifically, the motion platform module may include 2 or 3 motion platforms, each of which has a degree of freedom of at least 2. The multiple motion platforms are connected or connected in series by a superposition, e.g., a first motion platform is disposed on a second motion platform, a second motion platform is disposed on a third motion platform, and so on. The furniture placing table module or the laser engraving head module is arranged on the uppermost or lowermost moving platform according to actual requirements.
Taking the common degree of freedom of the moving platform as 2 as an example, the moving platform module comprises a plurality of moving platforms with the same structure, each moving platform can move in a translational manner along a first direction (namely an X direction) of a horizontal plane and move in a translational manner along a second direction (namely a Y direction) perpendicular to the first direction in the horizontal plane, so that the degree of freedom of the moving platform module formed by connecting the moving platforms is also 2, and the moving platform module can move along the first direction and the second direction, thereby driving a furniture placing table module or a laser engraving head module arranged on the moving platform module to move along the first direction and the second direction, and the movement of any direction on the horizontal plane can be decomposed into the movement along the first direction and the second direction.
Alternatively, however, the motion platform may have more degrees of freedom, and the corresponding motion platform module has the same degree of freedom of motion as the motion platform. For example, the number of degrees of freedom of the motion platform may be 3, including two translational degrees of freedom and one rotational degree of freedom along a vertical axis as described above.
The motion platform has a variety of well-established structural compositions in the art, and the application is not particularly limited herein, but generally, each degree of freedom of the motion platform is driven by a separate motor. Because the moving platform module is provided with a plurality of moving platforms, when the moving platform module needs to move, the control module controls the moving platforms to move in turn, so that the occurrence of frequent start and stop or reverse rotation of a single driving motor in a short time caused by continuous movement of a single moving platform can be reduced.
However, more preferably, the application also provides a furniture laser engraving control method, as shown in fig. 1, which specifically comprises the following steps:
step S10, the control module plans the next motion of the motion platform module in each degree of freedom direction according to the pattern to be engraved WhereinRepresenting the next movement in the direction of the i-th degree of freedom,，Is the degree of freedom of the motion platform module.
Step S20, for each movementThe control module selects the motor according to the followingFor performing movements：
Namely, J gettingThe value of j at which the value is minimum.
Wherein the method comprises the steps ofRepresents a driving motor for realizing the motion of the ith degree of freedom in the jth motion platform,，The number of the motion platforms;
Motor for representing current distance Last stall or reverse (relative to the current execution of motionFor a turn of (a), the time of the turn,Indicating motorPerforming movementsThe j-th motion stage is offset from the center of motion (i.e., the origin of motion) in the direction of motion of the i-th degree of freedom. For example, if the movement range of the 1 st movement platform in the 1 st degree of freedom (assuming that the movement direction of the degree of freedom is the first direction) is-10 cm to 10cm, the 1 st movement platform is located at the movement center thereof in the initial state, that is, at a position of 0cm, if it movesTo move 3cm in the first directionIs 3cm, if the movement is performed againFor movement in the first direction by-2 cm, then1Cm.
The scale-up parameter is indicated as such,Representing the threshold value parameter(s),The value of (2) can be preset according to the actual requirement.
Specifically, the formula at step S20In (1) willAs an objective function, the objective function includes the time of the last stop or reversal of the motor (in the formulaIndicated), and the distance of the motion platform from the center of motion (represented in the formula byRepresentation) of two sub-objects byWeighting the two sub-targets, for example, may setOr according to the actual priority of two sub-targetsSetting is performed. Thus, when the minimum objective function value is obtained, the motor is selectedTo perform the movementThe occurrence of frequent start-stop or reverse rotation of a single driving motor in a short time can be reduced on the whole, and the occurrence of the condition that a single motion platform exceeds a motion limit range can be reduced on the whole.
Meanwhile, since the time between the aging or the temperature rise of the motor and the last stopping or reversing of the motor is nonlinear, i.e. the aging or the temperature rise of the motor is not proportional to the starting time of the motor, a logarithmic function is usedFitting is performed in whichAs the threshold value parameter, it is preferable to set the time interval when the motor is continuously started and stopped for a predetermined time (such as one minute, or the average engraving time of the workpiece) at a certain time interval when the temperature rise of the motor reaches 40 degrees centigrade (or 30 degrees centigrade, or 50 degrees centigrade)。
Also, to limit the range of motion of the motion platform to a desired range (e.g., 80% or 90% or 70% of the motion limit), an exponential function is usedCan have an exponential level effect on the objective function after the motion of the motion platform exceeds the expected range, whereinAs a threshold parameter, it is preferable to take 80% (or 90% or 70%) of the movement center distance from the movement limit in the movement direction of the selected degree of freedom as。
Step S30, if the pattern is not engraved, the process returns to step S10.
By the furniture laser engraving control method, the occurrence of frequent start and stop or reverse rotation of a single driving motor in a short time can be reduced, and the occurrence of the condition that a single motion platform exceeds a motion limit range can be reduced. In a preferred embodiment, the control module is configured to perform the furniture laser engraving control method described above.
Further, in step S20, a motor is selectedFor performing movementsIn the meantime, a motor may occurPerforming movementsWhich can lead to situations where the J-th motion platform exceeds the motion limits. The control module can move at this timeDecomposing into a plurality of sub-motions with smaller motion strokes, and then respectively selecting motors for executing the sub-motions according to the formula of the step S20; or the control module firstly controls the motor selected according to the formula of the step S20 to firstly move, and when the motion platform moves to the motion limit, the motor is selected to move according to the formula of the step S20 after the rest unfinished motion.
Or to simplify the control flow, the formula in step S20 may be set as:
Or alternatively
It can be understood that while the control module performs steps S10-S30 to control the motion of the motion platform module, the control module synchronously controls the laser emission of the laser engraving head module according to the pattern engraving requirement.
The application also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the furniture laser engraving control method when executing the program. A furniture laser engraving control system may include such an electronic device.
The application also provides a non-transitory storage medium storing computer instructions for causing the computer to execute the furniture laser engraving control method. A furniture laser engraving control system may include such a non-transitory storage medium.
It should be noted that while several units, modules or sub-modules of a furniture laser engraving control system are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functions of two or more modules or methods described above may be embodied in one module in accordance with embodiments of the present invention. Conversely, the features and functions of one module or method described above may be further divided into a plurality of modules for materialization.
Furthermore, while the operations of the method of the present invention are described above in a particular order, this does not require or imply that the operations must be performed in the particular order or that all of the illustrated operations be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform.
Claims (9)
1. A furniture laser engraving control system, comprising:
the furniture placing table module, the laser engraving head module, the moving platform module and the control module;
The furniture placing table module is used for placing furniture to be engraved;
the laser engraving head module is used for emitting laser to perform laser engraving;
the motion platform module is used for controlling the relative motion of the furniture placing table module and the laser engraving head module;
the control module is connected with the motion platform module and used for controlling the motion of the motion platform module, and meanwhile, the control module is connected with the laser engraving head module and used for controlling the laser emission of the laser engraving head module;
the motion platform module comprises a plurality of connected motion platforms with the same motion freedom degree and the same motion precision, and the motion platform module has the same motion freedom degree as the motion platform; the degree of freedom of each motion platform is at least 2; wherein,
Each degree of freedom of each motion platform is driven by a separate motor;
The control module is configured to perform a furniture laser engraving control method comprising the steps of:
step S10, the control module plans the next motion of the motion platform module in each degree of freedom direction according to the pattern to be engraved WhereinRepresenting the next movement in the direction of the i-th degree of freedom,，The degree of freedom of the motion platform module;
Step S20, for each movement The control module selects the motor according to the followingFor performing movements：
Wherein the method comprises the steps ofRepresents a driving motor for realizing the motion of the ith degree of freedom in the jth motion platform,，The number of the motion platforms;
Motor for representing current distance The time of the last stall or reversal,Indicating motorPerforming movementsThe j-th motion platform deviates from the motion center in the motion direction of the i-th degree of freedom; The scale-up parameter is indicated as such, Representing a threshold parameter;
step S30, if the pattern is not engraved, returning to the step S10;
The control module controls the motion of the motion platform module in the steps S10-S30, and synchronously controls the laser emission of the laser engraving head module according to the pattern engraving requirement.
2. The furniture laser engraving control system of claim 1, wherein,
The furniture placing table module is provided with a furniture fixing device for fixing furniture.
3. The furniture laser engraving control system of claim 1, wherein,
The furniture placing table module is arranged on the moving platform module, and the moving platform module is used for controlling the furniture placing table module to move.
4. The furniture laser engraving control system of claim 3, wherein,
The plurality of moving platforms are connected in a superposition mode, and the furniture placing table module is arranged on the uppermost moving platform.
5. The furniture laser engraving control system of claim 1, wherein,
The laser engraving head module is arranged on the moving platform module, and the moving platform module is used for controlling the movement of the laser engraving head module.
6. The furniture laser engraving control system of claim 5, wherein,
The plurality of moving platforms are connected in a superposition mode, and the laser engraving head module is arranged on the lowest moving platform.
7. The furniture laser engraving control system of claim 1, wherein,
The number of degrees of freedom of the motion stages is 2, each motion stage being capable of translational movement in a first direction along a horizontal plane and translational movement in a second direction perpendicular to the first direction in the horizontal plane.
8. The furniture laser engraving control system of claim 1, wherein,
The number of degrees of freedom of the motion platform is 3, including two translational degrees of freedom in a plane and one rotational degree of freedom to rotate along a vertical axis.
9. The furniture laser engraving control system of claim 1, wherein,
The motion platform module comprises 2 or 3 motion platforms with the same structure.
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| CN202410962000.3A CN118492647B (en) | 2024-07-18 | 2024-07-18 | Furniture laser engraving control system |
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| CN202410962000.3A CN118492647B (en) | 2024-07-18 | 2024-07-18 | Furniture laser engraving control system |
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| CN105215543A (en) * | 2015-11-20 | 2016-01-06 | 武汉逸飞激光设备有限公司 | A kind of five dimension control device and methods for battery modules welding |
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| CN201530059U (en) * | 2009-04-30 | 2010-07-21 | 苏州德龙激光有限公司 | X-Y-theta moving platform applied to LED laser cutting equipment |
| CN102632336B (en) * | 2011-09-16 | 2015-04-08 | 沈阳理工大学 | Switching macro micro laser high-speed cutting machine tool |
| CN105057893B (en) * | 2015-07-27 | 2017-08-29 | 上海微世半导体有限公司 | Laser boring diced system for semi-conducting material |
| CN107695543A (en) * | 2017-08-24 | 2018-02-16 | 江苏大学 | One kind utilizes eddy current effect auxiliary heating laser spiral perforating device and method |
| CN110253160B (en) * | 2019-05-28 | 2021-04-30 | 佛山市华道超精科技有限公司 | High-speed precise laser drilling platform and control method thereof |
| EP4043142B1 (en) * | 2021-02-12 | 2024-08-07 | Valstybinis Moksliniu Tyrimu Institutas Fiziniu Ir Technologijos Mokslu Centras | Method for batch processing of 3d objects using laser treatment and a system implementing the method |
| CN114985908B (en) * | 2022-07-13 | 2023-04-25 | 中南大学 | High-precision machining system and method for miniature rotary resonant structure |
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| CN105215543A (en) * | 2015-11-20 | 2016-01-06 | 武汉逸飞激光设备有限公司 | A kind of five dimension control device and methods for battery modules welding |
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