CN113618256A - Laser cutting machine offset resetting system and resetting method - Google Patents
Laser cutting machine offset resetting system and resetting method Download PDFInfo
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- CN113618256A CN113618256A CN202110843933.7A CN202110843933A CN113618256A CN 113618256 A CN113618256 A CN 113618256A CN 202110843933 A CN202110843933 A CN 202110843933A CN 113618256 A CN113618256 A CN 113618256A
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002159 abnormal effect Effects 0.000 claims abstract description 55
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000003086 colorant Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 description 7
- 238000003754 machining Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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
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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
- B23K26/70—Auxiliary operations or equipment
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a laser cutting machine deviation resetting system and a resetting method thereof, wherein the system comprises a monitoring unit, a reset unit and a reset unit, wherein the monitoring unit monitors the abnormal working state of a laser cutting machine and generates a corresponding abnormal control instruction; the processing unit is electrically connected with the monitoring unit and is used for receiving the abnormal control instruction and then calling the position information of the laser cutting head when the abnormal state occurs; the storage unit is electrically connected with the processing unit and receives and stores the position information; and the resetting unit is electrically connected with the storage unit and can read the position information from the storage unit and control the laser cutting head to reset to the corresponding position information and store the position information. The invention can realize the marking, positioning and correcting of the laser gun group position under the emergency condition, and can carry out accurate reset after the abnormal state is relieved.
Description
Technical Field
The invention belongs to the technical field of laser cutting machines, and particularly relates to a laser cutting machine deviation resetting system and a resetting method.
Background
Laser cutting is the process of melting and evaporating a workpiece by using energy released when a laser beam irradiates the surface of the workpiece so as to achieve the purposes of cutting and carving. In the field of metal cutting machines, laser cutting machines have become mainstream production machines, the machining precision is high and the production efficiency is high in the aspect of cutting, a common laser cutting machine on the market at present basically comprises a longitudinal moving assembly, a transverse moving assembly, a metal supporting member, a laser gun set, an auxiliary gas supply system and a control part, the laser gun set finishes the shape cutting of metal on the metal supporting member through longitudinal and transverse movement in the production process, the energy released when the laser gun set irradiates a laser beam on the surface of a workpiece melts the target position at high temperature, and the melted metal liquid phase is blown away from the workpiece by a gas blowing system so as to finish the cutting effect.
A quick reset system of machine tool with application number 201911424955.9 discloses a quick reset system of machine tool, including: and the reset execution unit is used for controlling the machine tool to reset to the corresponding posture stored in the reset storage unit through the PLC. A reset storage unit for storing a plurality of machine tool reset attitudes, the reset attitudes including: a machining attitude of the workpiece, an observation attitude of the workpiece, a detection attitude of the machine tool, and an execution component detection attitude of the machine tool. The application can realize that the machine tool is quickly reset to the state before detection after shutdown.
However, each component system of the laser cutting machine is complex, except for the conventional manual shutdown condition, the situation that machining cannot be continued due to accidental shutdown and sudden shutdown can also exist, and in the situation, related components need to be maintained, so that the related components cannot be controlled and moved, and further, after maintenance is recovered, the laser gun group cannot be reset to the machining position in the sudden condition. In this situation, the technical solution of the above patent application obviously cannot cope with such an emergency.
Disclosure of Invention
The invention provides an offset resetting system and a resetting method of a laser cutting machine, aiming at the problems in the prior art.
The invention solves the technical problems through the following technical means:
a laser cutter offset re-reset system comprising:
the monitoring unit monitors the abnormal working state of the laser cutting machine and generates a corresponding abnormal control instruction;
the processing unit is electrically connected with the monitoring unit and is used for receiving the abnormal control instruction and then calling the position information of the laser cutting head when the abnormal state occurs;
the storage unit is electrically connected with the processing unit and receives and stores the position information;
and the resetting unit is electrically connected with the storage unit and can read the position information from the storage unit and control the laser cutting head to reset to the corresponding position information and store the position information.
Furthermore, the monitoring unit is used for monitoring the abnormal state of the laser light path and the abnormal state of the laser cutting head track motion.
The laser cutting machine further comprises a PLC control unit and a coordinate unit, wherein the PLC control unit and the coordinate unit are respectively electrically connected with the processing unit, the PLC control unit stores working path information of the laser cutting head, an absolute coordinate system is stored in the coordinate unit, and the position information is absolute position coordinates of the laser cutting head after being corrected by the absolute coordinate system and the working path information.
The system further comprises an indicating unit which is electrically connected with the processing unit and indicates three states, the first state indicates that the processing unit retrieves the position information and successfully stores the position information in the storage unit, the second state indicates that the offset resetting system is in a working state, and the third state indicates that the position information is not retrieved.
Further, the three states of the indicating unit are respectively indicated by indicating lamps of three mutually different colors.
Furthermore, the system also comprises a power supply unit, wherein the power supply unit is electrically connected with the monitoring unit and is used as a hot standby power supply of the monitoring unit and the processing unit.
Furthermore, the monitoring unit monitors the abnormal power supply state of the laser cutting machine, generates a power supply instruction through the processing unit and supplies power to the offset resetting system.
In addition, the reset method of the offset reset system of the laser cutting machine is also provided, and the method sequentially comprises the following steps:
s100, monitoring whether the laser cutting machine is in an abnormal working state or not, and if so, executing S200;
s200, calling and correcting position information of the laser cutting head in an abnormal working state and storing the position information;
s300, after the influence factors of the abnormal working state are eliminated, reading the stored position information and controlling the laser cutting head to reset;
and S100, the abnormal working state comprises the abnormal laser light path and the abnormal laser cutting head track motion track.
Further, the method for acquiring the location information in S200 is as follows:
s210, positioning an absolute coordinate P and a relative coordinate M of the laser cutting head when the laser cutting head starts to cut, wherein the absolute coordinate P is coordinate information of the laser cutting head in an absolute coordinate system, and the relative coordinate M is a coordinate origin of a processing track;
s220, reading an absolute coordinate Q of the laser cutting head in an abnormal working state;
s230, taking a working track finished by the laser cutting head between the cutting start state and the abnormal working state, and generating a path vector together with the relative coordinate M;
s240, carrying out vector calculation on the absolute coordinate P and the path vector to obtain an absolute coordinate N to be corrected, comparing whether the absolute coordinate N to be corrected is consistent with the absolute coordinate Q, and if so, generating the position information.
The invention has the beneficial effects that: the invention is provided with an offset resetting system which is formed by a monitoring unit, a processing unit, a storage unit and a resetting unit, and the offset resetting system is started by monitoring the working state judgment of the laser cutting machine in real time, so that the marking, positioning and correcting work of the position of the laser gun group under an emergency condition can be realized, and the offset resetting system can be accurately reset after the abnormal state is relieved.
Drawings
FIG. 1 is a schematic diagram of an offset resetter system;
fig. 2 is a flow chart of a reset method.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all 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.
Examples
As shown in fig. 1, an offset re-resetting system of a laser cutting machine is provided, which comprises a monitoring unit, a processing unit, a storage unit and a resetting unit. The monitoring unit monitors the abnormal working state of the laser cutting machine and generates a corresponding abnormal control instruction; the processing unit is electrically connected with the monitoring unit and is used for receiving the abnormal control instruction and then calling the position information of the laser cutting head when the abnormal state occurs; the storage unit is electrically connected with the processing unit and receives and stores the position information; the storage unit is electrically connected with the storage unit, and the reset unit can read the position information from the storage unit and control the laser cutting head to reset to the corresponding position information and store the position information.
The laser cutting machine deviation resetting system composed of the monitoring unit, the processing unit, the storage unit and the resetting unit is an independent system, is independent of the PLC processing control system and belongs to an additional functional system.
Through the laser cutting machine deviation resetting system, the monitoring unit can be triggered to work when the laser cutting machine encounters a sudden abnormal state, so that a series of operations including coordinate information acquisition, reading, calculation processing and the like are completed, and position information which can be referred to for resetting is formed.
In combination with the actual processing process, the monitoring unit mainly monitors two kinds of abnormal state information: the first is that the laser light path is in an abnormal state, which is mainly reflected by abnormal laser emission (i.e. no laser is emitted) and abnormal laser energy density, obviously, when the two states occur, if no alarm system exists, the laser cutting head can continuously do useless work, and the laser cutting head can shift; the first type is a laser cutting head track motion abnormal state, the state is mainly embodied as a driving system abnormity, namely a travelling mechanism for driving the laser cutting head to move is damaged, no matter an X-axis travelling mechanism is damaged or a Y-axis travelling mechanism is damaged, the laser cutting head can directly cause the laser cutting head to be incapable of finishing preset processing, the state can be directly realized by monitoring the working state of a driving motor, meanwhile, in order to avoid damaging a machined part under the state, when the abnormal state is monitored, a feedback control instruction can be set to control a laser light path to stop working.
The system also comprises a PLC control unit and a coordinate unit, wherein the PLC control unit and the coordinate unit are respectively and electrically connected with the processing unit. The PLC control unit, namely the PLC processing control system, is mainly used for controlling the processing process, and the PLC control unit stores the working path information of the laser cutting head. The coordinate unit stores an absolute coordinate system, the coordinate system is a preset system, namely a two-dimensional coordinate system determined according to the movement range of the laser cutting head of the machine tool on the machine tool, and the coordinate system is different from a coordinate system in PLC machining.
The system also comprises an indicating unit which is electrically connected with the processing unit and indicates three states, wherein the first state indicates that the processing unit transfers the position information and successfully stores the position information in the storage unit, the second state indicates that the offset resetting system is in a working state, and the third state indicates that the position information transfer fails.
Generally, three indication states all need to be displayed to the outside, so three indication lamps with different colors are adopted for indication, for example, when the indication lamp is yellow, the system indicates that the system carries out information processing work for resetting, when the indication lamp is green, the processing unit is indicated to transfer the position information and successfully store the position information in the storage unit, an operator can carry out subsequent maintenance and other work, and when the indication lamp is red, the information transfer failure or unknown dislocation is indicated.
In order to avoid an emergency situation caused by sudden power failure of the laser cutting machine, the system further comprises a power supply unit, the power supply unit is used as a hot standby power supply of the monitoring unit and the processing unit, the power supply unit is respectively and electrically connected with the monitoring unit and the processing unit, the power supply unit is also electrically connected with other units of the system, when the sudden power failure occurs, the power supply unit is used as the hot standby power supply to be started immediately, the monitoring unit forms an abnormal control instruction, the processing unit generates a power supply instruction, and the power supply unit restores power supply to other units in the system.
As another embodiment, as shown in fig. 2, there is provided a resetting method of an offset resetting system of a laser cutting machine, which sequentially includes the following steps:
s100, monitoring whether the laser cutting machine is in an abnormal working state or not, if so, executing S200, wherein S200 comprises S210-S240;
s210, positioning an absolute coordinate P and a relative coordinate M of the laser cutting head when the laser cutting head starts to cut, wherein the absolute coordinate P is coordinate information of the laser cutting head in an absolute coordinate system, and the relative coordinate M is a coordinate origin of a processing track;
s220, reading an absolute coordinate Q of the laser cutting head in an abnormal working state;
s230, taking a working track finished by the laser cutting head between the cutting start state and the abnormal working state, and generating a path vector together with the relative coordinate M;
s240, carrying out vector calculation on the absolute coordinate P and the path vector to obtain an absolute coordinate N to be corrected, comparing whether the absolute coordinate N to be corrected is consistent with the absolute coordinate Q, and if so, generating the position information;
s300, after the influence factors of the abnormal working state are eliminated, reading the stored position information and controlling the laser cutting head to reset;
and S100, the abnormal working state comprises the abnormal laser light path and the abnormal laser cutting head track motion track.
And indicating the state two in the process of executing the steps S100 to S240, and respectively indicating the state one and the state three according to the judgment result after the execution of the step S240 is finished.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A laser cutter offset re-reset system, comprising:
the monitoring unit monitors the abnormal working state of the laser cutting machine and generates a corresponding abnormal control instruction;
the processing unit is electrically connected with the monitoring unit and is used for receiving the abnormal control instruction and then calling the position information of the laser cutting head when the abnormal state occurs;
the storage unit is electrically connected with the processing unit and receives and stores the position information;
and the resetting unit is electrically connected with the storage unit and can read the position information from the storage unit and control the laser cutting head to reset to the corresponding position information and store the position information.
2. The offset resetting system of a laser cutting machine according to claim 1, wherein the monitoring unit is used for monitoring the abnormal state of the laser light path and the abnormal state of the laser cutting head track motion.
3. The offset resetting system of the laser cutting machine according to claim 1, further comprising a PLC control unit and a coordinate unit, which are respectively electrically connected to the processing unit, wherein the PLC control unit stores working path information of the laser cutting head, the coordinate unit stores an absolute coordinate system, and the position information is absolute position coordinates of the laser cutting head corrected by the absolute coordinate system and the working path information.
4. The offset resetting system of the laser cutting machine according to claim 1, further comprising an indication unit electrically connected to the processing unit, wherein the indication unit indicates three states, the first state indicates that the processing unit retrieves the position information and successfully stores the position information in the storage unit, the second state indicates that the offset resetting system is in a working state, and the third state indicates that the position information is not retrieved.
5. The offset resettling system of the laser cutting machine according to claim 4, wherein the three states of the indicating unit are indicated by three indicating lights of different colors.
6. The offset resetting system of the laser cutting machine according to any one of claims 1 to 5, characterized by further comprising a power supply unit, wherein the power supply unit is electrically connected with the monitoring unit, and the power supply unit is used as a hot standby power supply for the monitoring unit and the processing unit.
7. The offset resetting system of the laser cutting machine according to claim 6, wherein the monitoring unit monitors the abnormal power supply state of the laser cutting machine and generates a power supply instruction through the processing unit to supply power to the offset resetting system externally.
8. A reset method of a laser cutting machine offset re-reset system is characterized by sequentially comprising the following steps:
s100, monitoring whether the laser cutting machine is in an abnormal working state or not, and if so, executing S200;
s200, calling and correcting position information of the laser cutting head in an abnormal working state and storing the position information;
s300, after the influence factors of the abnormal working state are eliminated, reading the stored position information and controlling the laser cutting head to reset;
and S100, the abnormal working state comprises the abnormal laser light path and the abnormal laser cutting head track motion track.
9. The method for resetting the offset resetting system of the laser cutting machine according to claim 8, wherein the method for acquiring the position information in the step S200 is as follows:
s210, positioning an absolute coordinate P and a relative coordinate M of the laser cutting head when the laser cutting head starts to cut, wherein the absolute coordinate P is coordinate information of the laser cutting head in an absolute coordinate system, and the relative coordinate M is a coordinate origin of a processing track;
s220, reading an absolute coordinate Q of the laser cutting head in an abnormal working state;
s230, taking a working track finished by the laser cutting head between the cutting start state and the abnormal working state, and generating a path vector together with the relative coordinate M;
s240, carrying out vector calculation on the absolute coordinate P and the path vector to obtain an absolute coordinate N to be corrected, comparing whether the absolute coordinate N to be corrected is consistent with the absolute coordinate Q, and if so, generating the position information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110843933.7A CN113618256A (en) | 2021-07-26 | 2021-07-26 | Laser cutting machine offset resetting system and resetting method |
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| CN202110843933.7A CN113618256A (en) | 2021-07-26 | 2021-07-26 | Laser cutting machine offset resetting system and resetting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013401A (en) * | 2022-05-31 | 2022-09-06 | 三一重能股份有限公司 | Abnormal movement prevention protection system and method for moving pin, moving pin device and wind driven generator |
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| JP2020011266A (en) * | 2018-07-19 | 2020-01-23 | ブラザー工業株式会社 | Laser processing device |
| CN111142477A (en) * | 2019-12-31 | 2020-05-12 | 科德数控股份有限公司 | Quick reset system of machine tool |
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2021
- 2021-07-26 CN CN202110843933.7A patent/CN113618256A/en active Pending
Patent Citations (6)
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| JP2004330277A (en) * | 2003-05-09 | 2004-11-25 | Mitsubishi Electric Corp | Laser beam machining device |
| JP2008296240A (en) * | 2007-05-31 | 2008-12-11 | Sunx Ltd | Laser beam machining apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115013401B (en) * | 2022-05-31 | 2024-06-04 | 三一重能股份有限公司 | Mobile pin anti-abnormal protection system and method, mobile pin device and wind driven generator |
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