CN221231783U - Laser safety processing system - Google Patents

Abstract

The utility model relates to the technical field of laser processing and discloses a laser safe processing system. The system comprises: the laser is used for emitting laser beams, and a scram switch galvanometer is arranged on the laser and used for reflecting the laser beams to a workpiece; the safety card is respectively and electrically connected with the laser and the vibrating mirror and is used for monitoring the working states of the laser and the vibrating mirror; the safety card is also electrically connected with the control end of the emergency stop switch so as to stop the laser when the working state is abnormal; and the control card is respectively and electrically connected with the laser and the vibrating mirror, and is also in communication connection with the safety card and used for controlling the working states of the laser and the vibrating mirror. Therefore, the safety card is arranged, so that the safety card can monitor the working states of the laser and the vibrating mirror in real time and feed back the working states to the control card in real time when laser processing is performed, and the reliability of safety protection measures is improved.

Description

Laser safety processing system

Technical Field

The utility model relates to the technical field of laser safety protection, in particular to a laser safety processing system.

Background

Currently, higher power lasers, and sometimes even the level of a vanwatt laser, are often required when performing laser macro machining. Therefore, safety protection for laser processing is becoming increasingly important.

At present, laser control is mostly realized through a control card, the control card controls a laser and a galvanometer through control signals, processing of a workpiece is realized, and the working states of the laser and the galvanometer are obtained through feedback signals of the laser and the galvanometer. In order to ensure safe and stable operation of the system, software and hardware of the control card can set certain safety protection logic, for example, feedback signals of the laser are monitored through the safety protection logic, and when an abnormality occurs, the laser can be suddenly stopped, so that serious production accidents are prevented.

However, due to the arrangement of the device, the connection between the laser and the galvanometer and the control card may be relatively long, so that feedback signals of the laser and the galvanometer are easily disturbed, resulting in erroneous judgment.

Disclosure of utility model

In view of the above, the present utility model provides a laser safety processing system to solve the problem that safety protection measures for laser processing are easy to be misjudged.

The utility model provides a laser safe processing system, which comprises:

the laser is used for emitting laser beams, and an emergency stop switch is arranged on the laser;

The galvanometer is used for reflecting the laser beam to a workpiece;

The safety card is respectively and electrically connected with the laser and the vibrating mirror and is used for monitoring the working states of the laser and the vibrating mirror; the safety card is also electrically connected with the control end of the emergency stop switch so as to stop the laser when the working state is abnormal;

And the control card is respectively and electrically connected with the laser and the vibrating mirror, and is also connected with the safety card and used for controlling the working states of the laser and the vibrating mirror.

According to the scheme, the safety card is arranged, so that the working states of the laser and the vibrating mirror can be monitored in real time by the safety card when laser processing is performed, and the working states are fed back to the control card in real time, so that the reliability of safety protection measures is improved. The control card can timely adjust the working states of the laser and the vibrating mirror according to the feedback of the safety card so as to prevent the working states of the laser and the vibrating mirror from being abnormal. When the working state of the laser and/or the vibrating mirror is abnormal, the safety card can trigger the emergency stop switch on the laser to stop the laser, so that the machine damage or the safety accident is prevented.

In an alternative embodiment, the system further comprises a laser power sensor disposed in the optical path of the laser beam; the laser power sensor is electrically connected with the safety card and is used for detecting the laser power of the laser beam.

According to the scheme, the laser power sensor is arranged, so that the laser power sensor can monitor the laser power of the laser beam in real time and feed back the laser power to the safety card in real time when the laser processing is performed, and the safety card records and feeds back the laser power to the control card, so that the safety protection measures are more reliable.

In an alternative embodiment, the system further comprises a heat dissipation module electrically connected with the control card and the safety card respectively, and used for dissipating heat of the vibrating mirror.

Above-mentioned scheme is through setting up heat dissipation module for when carrying out laser processing, heat dissipation module can dispel the heat to vibrating mirror, and the safety card can monitor and feed back to the control card to heat dissipation module's operating condition, makes the safety protection measure more reliable.

In an alternative embodiment, the heat dissipation module includes a galvanometer temperature sensor; the vibrating mirror temperature sensor is electrically connected with the safety card and used for detecting the temperature of the vibrating mirror and transmitting the temperature to the safety card.

Above-mentioned scheme is through setting up galvanometer temperature sensor for when carrying out laser processing, galvanometer temperature sensor can real-time detection galvanometer's temperature, and feedback to the safety card in real time, the safety card record is and feedback to the control card, makes the safety precaution more reliable.

In an alternative embodiment, the heat dissipation module further comprises a water cooling liquid and a water temperature sensor; the water temperature sensor is electrically connected with the safety card and is used for detecting the water temperature of the water cooling liquid and transmitting the water temperature to the safety card.

Above-mentioned scheme is through setting up water-cooling liquid and water temperature sensor for when carrying out laser processing, the water-cooling liquid can participate in the heat dissipation work to the mirror that shakes, and water temperature sensor can real-time detection water-cooling liquid's temperature, and feedback to the safety card in real time, safety card record and feedback to the control card, make the safety precaution more reliable.

In an alternative embodiment, the heat dissipation module further comprises a water flow meter; the water flow meter is electrically connected with the safety card and is used for detecting the water flow of the water cooling liquid and transmitting the water flow to the safety card.

Above-mentioned scheme is through setting up the rivers meter for when carrying out laser processing, the rivers meter can real-time detection water-cooling liquid's discharge, and feedback to the safety card in real time, safety card record and feedback to the control card, make the safety precaution more reliable.

In an alternative embodiment, the system further comprises a field lens disposed below the galvanometer for focusing the laser beam reflected from the galvanometer.

According to the technical scheme, the field lens is arranged, so that the field lens can focus the laser beam reflected by the vibrating mirror when laser processing is performed, and the laser beam can process a workpiece better.

In an alternative embodiment, the heat dissipation module further comprises a field lens temperature sensor; the field lens temperature sensor is electrically connected with the safety card and used for detecting the temperature of the field lens and transmitting the temperature to the safety card.

According to the technical scheme, the field lens temperature sensor is arranged, so that the field lens temperature sensor can detect the temperature of the field lens in real time and feed back the temperature to the safety card in real time when laser processing is performed, and the safety card records and feeds back the temperature to the control card, so that the safety protection measures are more reliable.

In an alternative embodiment, the system further comprises a dust removal module; the dust removal module is electrically connected with the control card and is used for removing dust from the vibrating mirror.

Above-mentioned scheme is through setting up dust removal module for when carrying out laser processing, dust removal module can remove dust to vibrating mirror, reduces the interference of dust to laser beam focus.

In an alternative embodiment, the system further comprises a barometric pressure sensor; the air pressure sensor is electrically connected with the safety card and is used for detecting air pressure of the air circuit in the dust removal module and transmitting the air pressure to the safety card.

According to the scheme, the air pressure sensor is arranged, so that when laser processing is carried out, the air pressure of the air circuit in the dust removal module can be detected in real time by the air pressure sensor, and fed back to the safety card in real time, and the safety card records and feeds back to the control card, so that the safety protection measures are more reliable.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a laser safety processing system according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a laser; 2-vibrating mirror; 3-a security card; 4-a control card; 5-work piece.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Fig. 1 is a schematic structural view of a laser safety processing system according to an embodiment of the present utility model. As shown in fig. 1, the laser safe processing system includes:

a laser 1 for emitting a laser beam, the laser being provided with an emergency stop switch;

a galvanometer 2 for reflecting the laser beam to a workpiece 5;

The safety card 3 is respectively and electrically connected with the laser 1 and the galvanometer 2 and is used for monitoring the working states of the laser 1 and the galvanometer 2; the safety card 3 is also electrically connected with the control end of the emergency stop switch so as to stop the laser 1 when the working state is abnormal;

And the control card 4 is respectively and electrically connected with the laser 1 and the galvanometer 2, and is also in communication connection with the safety card 3 and used for controlling the working states of the laser 1 and the galvanometer 2.

In the field of laser processing, the precision of a processing object is classified into macro processing and micro processing. Unlike micromachining, macro-machining often requires higher power lasers, sometimes even to the level of a vanwatt laser, and laser safety protection is therefore important. In the related art, the control function of the laser processing system is realized by a control card. The control card is a board card for realizing surface marking of a target object by controlling the light path of the laser beam. In order to ensure that the laser processing can safely and stably run, the software and hardware of the control card can set certain safety protection logic, for example, the working state of the laser is monitored, and when the laser is abnormal, the laser can be suddenly stopped, so that serious production accidents are avoided.

However, the safety protection of the control card in the related art to the laser processing process only monitors the state of the laser, has imperfect functions, does not protect the whole laser processing system, and cannot record and pre-judge faults. And the arrangement of equipment in the actual application scene is limited, the connecting line between the laser and the control card is longer, and the control card is easy to be affected by mechanical vibration, external electromagnetic interference and the like, so that misjudgment is caused.

Therefore, the embodiment of the utility model provides a laser safe processing system, which improves the reliability of safety protection for the laser processing process by arranging the safety card.

The working principle of the laser safety processing system shown in fig. 1 is as follows:

The laser 1, i.e. a device capable of emitting laser light, may be a gas laser, a solid state laser, a semiconductor laser, a dye laser, etc., and the type of the laser 1 is not limited by the present utility model.

The galvanometer 2, which includes a mirror for reflecting the laser beam, can perform laser marking by manipulating the deflection of the mirror so that the incident laser beam can be emitted to a target position of the workpiece 5 at a target angle.

The safety card 3 is a board card with a plurality of interfaces, can be respectively and electrically connected with the laser 1 and the galvanometer 2 to monitor the working state of the laser 1 and the working state of the galvanometer 2, and can be in communication connection with the control card 4 to feed back the monitored working state of the laser 1 and the monitored working state of the galvanometer 2 to the control card 4.

In an actual application scenario, the control card 4 sends a control signal to the laser 1, and the laser 1 transmits a laser beam to the galvanometer 2 according to the received control signal. The control card 4 sends a control signal to the galvanometer 2, which reflects the incident laser beam to a target position on the workpiece 5 according to the target angle, based on the received control signal.

In the whole working process, the safety card 3 receives the state signal of the laser 1 and the state signal of the galvanometer in real time so as to monitor the working state of the laser 1 and the working state of the galvanometer, and feeds back the working state of the laser 1 and the working state of the galvanometer to the control card 4 through state feedback signals. The control card 4 can also control the working states of the laser 1 and the galvanometer according to the received state feedback signals of the laser 1 and the galvanometer.

When the working state of the laser 1 and/or the working state of the vibrating mirror are abnormal, the state signal of the laser 1 and/or the state signal of the vibrating mirror received by the safety card 3 are abnormal, and the safety card 3 sends a scram signal to the control end of the scram switch on the laser 1 to trigger the scram switch, so that the laser 1 is closed, the laser safety processing system does not work after the laser 1 is closed, and the laser safety processing system can be prevented from being damaged or even causing a safety accident. The safety card 3 also records the abnormal condition of the laser 1 and/or the galvanometer, and feeds back the abnormal condition to the control card 4 through a state feedback signal. The control card 4 obtains the abnormal condition of the laser 1 and/or the galvanometer through the state feedback signal, and can give an alarm to inform relevant technicians to repair.

The safety card 3 can also predict faults based on the state values in the operating state of the laser 1 and the state values in the operating state of the galvanometer. For example, a safety threshold corresponding to a state value is preset in the safety card 3, when the state value is equal to the safety threshold, the laser safety processing system is at risk of failure but has not failed, and when the safety card 3 detects that the state value in the operating state of the laser 1 and/or the state value in the operating state of the galvanometer exceeds the safety threshold, a scram switch is triggered to prevent the occurrence of failure in advance.

It should be noted that all the computer programs mentioned above, such as the program for controlling laser processing provided in the control card 4, the program for monitoring the laser 1 and the galvanometer provided in the security card 3, use existing programs having corresponding functions, and these existing programs are used independently of the point of the utility model.

In an alternative implementation, the system further includes a laser power sensor disposed in the optical path of the laser beam; the laser power sensor is electrically connected to the security card 3 for detecting the laser power of the laser beam.

The state value in the operating state of the laser 1 comprises the laser power of the laser beam. The laser power sensor may detect the laser power of the laser beam and transmit it to the security card 3 in the form of an electrical signal. The safety card 3 is provided with an interface electrically connected with the laser power sensor, so that the laser power of the laser beam can be received to monitor the working state of the laser 1, the laser power of the laser beam is fed back to the control card 4 through a state feedback signal, and the control card 4 can control the working state of the laser 1 according to the state feedback signal corresponding to the laser power, so that the laser power of the laser beam keeps a normal value.

Further, a safety threshold of the laser power may be preset, where the safety threshold of the laser power is a maximum value of the laser power when the laser 1 is in a normal working state, and when the laser power exceeds the safety threshold, the laser 1 may be damaged, so that the safety card 3 triggers the emergency stop switch to turn off the laser 1 when detecting that the laser power exceeds the safety threshold.

Furthermore, the safety card 3 can monitor the working state of the laser power sensor according to the electric signal transmitted by the laser power sensor and feed back the working state of the laser power sensor to the control card 4 in real time, and when the working state of the laser power sensor is abnormal, the control card 4 can give an alarm to inform relevant technicians to repair.

In an alternative implementation, the system further includes a heat dissipation module electrically connected to the control card 4 and the security card 3, respectively, for dissipating heat from the galvanometer.

The heat dissipation module may be an air-cooled heat dissipation module, or a water-cooled heat dissipation module, or may be combined by a plurality of heat dissipation modes, which is not limited herein. The safety card 3 is provided with an interface electrically connected with the heat dissipation module, and can receive a status signal of the heat dissipation module to monitor the working state of the heat dissipation module, and feed back the status signal of the heat dissipation module to the control card 4 through a status feedback signal. The control card 4 can control the working state of the heat dissipation module according to the state feedback signal corresponding to the heat dissipation module so as to dissipate heat of the vibrating mirror.

Furthermore, the safety card 3 can monitor the working state of the heat dissipation module according to the state signal transmitted by the heat dissipation module and feed back the working state of the heat dissipation module to the control card 4 in real time, when the working state of the heat dissipation module is abnormal, the control card 4 can stop the laser safety processing system from working after the laser 1 is turned off, and the control card 4 can also give an alarm to inform relevant technicians to carry out maintenance.

In an alternative implementation, the heat dissipation module includes a galvanometer temperature sensor; the galvanometer temperature sensor is electrically connected with the safety card 3 and is used for detecting the galvanometer temperature and transmitting the galvanometer temperature to the safety card 3.

The state value in the working state of the galvanometer comprises the galvanometer temperature, and a galvanometer temperature sensor in the heat dissipation module can detect the galvanometer temperature and transmit the galvanometer temperature to the safety card 3 through an electric signal. The safety card 3 is provided with an interface electrically connected with the galvanometer temperature sensor, so that the galvanometer temperature transmitted by the galvanometer temperature sensor can be received, the working state of the galvanometer is monitored, the galvanometer temperature is fed back to the control card 4 through a state feedback signal, and the control card 4 can control the working state of the galvanometer according to the state feedback signal corresponding to the galvanometer temperature, so that the galvanometer temperature keeps a normal value.

Further, a safety threshold of the galvanometer temperature may be preset, where the safety threshold of the galvanometer temperature is a maximum value of the galvanometer temperature in a normal working state of the galvanometer, and when the galvanometer temperature exceeds the safety threshold, the galvanometer may be damaged, so when the safety card 3 detects that the galvanometer temperature exceeds the safety threshold, the emergency stop switch is triggered to close the laser 1, the laser 1 does not emit a laser beam after being closed, and the galvanometer temperature does not rise any more.

Furthermore, the safety card 3 can monitor the working state of the galvanometer temperature sensor according to the electric signal transmitted by the galvanometer temperature sensor and feed back the working state of the galvanometer temperature sensor to the control card 4 in real time, and when the working state of the galvanometer temperature sensor is abnormal, the control card 4 can give an alarm to inform relevant technicians to maintain.

In an alternative implementation, the heat dissipation module further includes a water cooling liquid and a water temperature sensor; the water temperature sensor is electrically connected with the safety card 3 and is used for detecting the water temperature of the water cooling liquid and transmitting the water temperature to the safety card 3.

The heat dissipation module can comprise water cooling liquid for performing water cooling heat dissipation, the state signal of the heat dissipation module comprises the water temperature of the water cooling liquid, and the water temperature sensor in the heat dissipation module can detect the water temperature of the water cooling liquid and transmit the water temperature to the safety card 3 through an electric signal. The safety card 3 is provided with an interface electrically connected with the water temperature sensor, so that the water temperature of the water cooling liquid transmitted by the water temperature sensor can be received, the working state of the heat dissipation module is monitored, the water temperature of the water cooling liquid is fed back to the control card 4 through a state feedback signal, and the control card 4 can control the working state of the heat dissipation module according to the state feedback signal corresponding to the water temperature of the water cooling liquid, so that the water temperature of the water cooling liquid is kept at a normal value.

Further, a safety threshold of the water temperature of the water cooling liquid can be preset, the safety threshold of the water temperature of the water cooling liquid is the maximum value of the water temperature of the water cooling liquid when the heat dissipation module is in a normal working state, when the water temperature of the water cooling liquid exceeds the safety threshold, the heat dissipation module can be damaged, or the heat dissipation effect of the heat dissipation module on the vibrating mirror cannot meet the requirement, so that the safety card 3 triggers the emergency stop switch when detecting that the water temperature of the water cooling liquid exceeds the safety threshold so as to close the laser 1, the laser beam is not emitted after the laser 1 is closed, the temperature of the vibrating mirror cannot rise any more, and therefore the control card 4 can stop the heat dissipation module through a control signal, and the water temperature of the water cooling liquid in the heat dissipation module can be reduced.

Furthermore, the safety card 3 can monitor the working state of the water temperature sensor according to the electric signal transmitted by the water temperature sensor and feed back the working state of the water temperature sensor to the control card 4 in real time, and when the working state of the water temperature sensor is abnormal, the control card 4 can give an alarm to inform relevant technicians of maintenance.

In an alternative implementation, the heat dissipation module further comprises a water flow meter; the water flow meter is electrically connected with the safety card 3 and is used for detecting the water flow of the water cooling liquid and transmitting the water flow to the safety card 3.

The water flow meter used for detecting the water flow of the water cooling liquid can be included in the heat dissipation module, the state signal of the heat dissipation module comprises the water flow of the water cooling liquid, and the water flow meter in the heat dissipation module can detect the water flow of the water cooling liquid and transmit the water flow to the safety card 3 through an electric signal. The safety card 3 is provided with an interface electrically connected with the water flow meter, so that the water flow of the water cooling liquid transmitted by the water flow meter can be received, the working state of the heat dissipation module is monitored, the water flow of the water cooling liquid is fed back to the control card 4 through a state feedback signal, and the control card 4 can control the working state of the heat dissipation module according to the state feedback signal corresponding to the water flow of the water cooling liquid, so that the water flow of the water cooling liquid is kept at a normal value.

Further, a safety threshold of the water flow of the water cooling liquid can be preset, the safety threshold of the water flow of the water cooling liquid is the maximum value of the water flow of the water cooling liquid when the heat dissipation module is in a normal working state, when the water flow of the water cooling liquid exceeds the safety threshold, the heat dissipation module can be damaged, or the heat dissipation effect of the heat dissipation module on the vibrating mirror can not meet the requirement, so that the safety card 3 triggers the scram switch when detecting that the water flow of the water cooling liquid exceeds the safety threshold so as to close the laser 1, the laser beam is not emitted after the laser 1 is closed, the temperature of the vibrating mirror can not rise any more, and therefore the control card 4 can stop the heat dissipation module through a control signal, and the water flow of the water cooling liquid in the heat dissipation module can stop.

Furthermore, the safety card 3 can monitor the working state of the water flow meter according to the electric signal transmitted by the water flow meter and feed back the working state of the water flow meter to the control card 4 in real time, and when the working state of the water flow meter is abnormal, the control card 4 can give an alarm to inform relevant technicians of maintenance.

In an alternative implementation, the system further includes a field lens disposed below the galvanometer for focusing the laser beam reflected from the galvanometer.

The field lens can focus the laser beams reflected by the vibrating mirror on the same plane and project the laser beams onto the workpiece 5 to perform laser processing on the workpiece 5.

In an alternative implementation, the heat dissipation module further includes a field lens temperature sensor; the field lens temperature sensor is electrically connected with the safety card 3 and is used for detecting the field lens temperature and transmitting the field lens temperature to the safety card 3.

The status signal of the field lens comprises a field lens temperature, which can be detected by the field lens temperature sensor and transmitted to the security card 3 by means of an electrical signal. The safety card 3 is provided with an interface electrically connected with the field lens temperature sensor, so that the field lens temperature transmitted by the field lens temperature sensor can be received to monitor the working state of the field lens, the field lens temperature is fed back to the control card 4 through a state feedback signal, and the control card 4 can control the working state of the field lens according to the state feedback signal corresponding to the field lens temperature, so that the field lens temperature keeps a normal value.

Further, a safety threshold of the field lens temperature may be preset, where the safety threshold of the field lens temperature is a maximum value of the field lens temperature in a normal working state, and when the field lens temperature exceeds the safety threshold, the field lens may be damaged, so when the safety card 3 detects that the field lens temperature exceeds the safety threshold, the emergency stop switch is triggered to close the laser 1, the laser 1 does not emit a laser beam after being closed, and the field lens temperature does not rise any more.

Furthermore, the safety card 3 can monitor the working state of the field lens temperature sensor according to the electric signal transmitted by the field lens temperature sensor and feed back the working state of the field lens temperature sensor to the control card 4 in real time, and when the working state of the field lens temperature sensor is abnormal, the control card 4 can give an alarm to inform relevant technicians to maintain.

In an alternative implementation, the system further comprises a dust removal module; the dust removal module is electrically connected with the control card 4 and is used for removing dust from the vibrating mirror.

Dust can influence the focusing effect of the vibrating mirror, so that a dust removal module can be arranged to remove dust from the vibrating mirror, and the dust removal module is also controlled by the control card 4.

In an alternative implementation, the system further comprises a barometric pressure sensor; the air pressure sensor is electrically connected with the safety card 3 and is used for detecting the air pressure of the air circuit in the dust removal module and transmitting the air pressure to the safety card 3.

The status signal of the dust removal module includes the air pressure of the air path, and the air pressure sensor can detect the air pressure of the air path and transmit the air pressure to the safety card 3 through an electric signal. The safety card 3 is provided with an interface electrically connected with the air pressure sensor, and can receive the air pressure of the air channel transmitted by the air pressure sensor so as to monitor the working state of the dust removal module, and feed the air pressure of the air channel back to the control card 4 through a state feedback signal, and the control card 4 can control the working state of the dust removal module according to the state feedback signal corresponding to the air pressure of the air channel, so that the air pressure of the air channel keeps a normal value.

Further, the safety threshold of the air pressure of the air channel can be preset, the safety threshold of the air pressure of the air channel is the maximum value of the air pressure of the air channel under the normal working state of the dust removal module, when the air pressure of the air channel exceeds the safety threshold, the dust removal module can be damaged, so that the safety card 3 triggers the emergency stop switch when detecting that the air pressure of the air channel exceeds the safety threshold to close the laser 1, the laser safety processing system does not work after the laser 1 is closed, and therefore the dust removal module is closed, and the air pressure of the air channel is reduced.

Furthermore, the safety card 3 can monitor the working state of the air pressure sensor according to the electric signal transmitted by the air pressure sensor and feed back the working state of the air pressure sensor to the control card 4 in real time, and when the working state of the air pressure sensor is abnormal, the control card 4 can give an alarm to inform relevant technicians to repair.

It should be noted that all the computer programs mentioned above, such as the program for performing heat dissipation provided in the heat dissipation module and the program for performing dust removal provided in the dust removal module, use existing programs having corresponding functions, and these existing programs are used independently of the point of the utility model.

In summary, by arranging the safety card 3, the safety card 3 can monitor the working states of the laser 1 and the galvanometer 2 in real time and feed back the working states to the control card 4 in real time when laser processing is performed, so that the reliability of safety protection measures is improved. The control card 4 can timely adjust the working states of the laser 1 and the galvanometer 2 according to the feedback of the safety card 3 so as to prevent the working states of the laser 1 and the galvanometer 2 from being abnormal. When the working state of the laser 1 and/or the galvanometer 2 is abnormal, the safety card 3 can trigger a scram switch on the laser 1 to shut down the laser 1, so as to prevent the occurrence of machine damage or safety accidents.

And through setting up laser power sensor for when carrying out laser processing, laser power sensor can real-time supervision laser beam's laser power, and feedback to safety card 3 in real time, safety card 3 record and feedback to control card 4, make the safety precaution more reliable.

And through setting up the heat dissipation module for when carrying out laser processing, the heat dissipation module can dispel the heat to vibrating mirror 2, and safety card 3 can monitor and feed back to control card 4 to the operating condition of heat dissipation module, makes the safety protection measure more reliable. Through setting up galvanometer temperature sensor for when carrying out laser processing, galvanometer temperature sensor can real-time detection galvanometer 2's temperature, and feedback to safety card 3 in real time, safety card 3 record and feedback to control card 4, make the safety precaution more reliable. Through setting up water-cooling liquid and temperature sensor for when carrying out laser processing, the water-cooling liquid can participate in the heat dissipation work to vibrating mirror 2, and temperature sensor can detect the temperature of water-cooling liquid in real time, and feeds back safety card 3 in real time, and safety card 3 record and feedback control card 4 make the safety precaution more reliable. Through setting up the rivers meter for when carrying out laser processing, the rivers meter can real-time detection water cooling liquid's discharge to the safety card 3 is fed back in real time, and the safety card record is fed back to control card 4, makes the safety precaution more reliable.

Further, by providing the field lens, the field lens can focus the laser beam reflected by the galvanometer 2 at the time of laser processing, so that the laser beam can process the workpiece 5 better. Through setting up field lens temperature sensor for when carrying out laser processing, field lens temperature sensor can the real-time detection field lens's temperature, and feeds back safety card 3 in real time, and safety card 3 record and feedback control card 4 make the safety precaution more reliable.

And through setting up dust removal module for when carrying out laser processing, dust removal module can remove dust to vibrating mirror 2, reduces the interference that the dust focused on laser beam. Through setting up the air pressure sensor for when carrying out laser processing, the air pressure of air circuit in the air pressure sensor can real-time detection dust removal module to feedback to safety card 3 in real time, safety card 3 record and feedback to control card 4, make the safety precaution more reliable.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A laser safe processing system, comprising:

the laser is used for emitting laser beams, and an emergency stop switch is arranged on the laser;

The galvanometer is used for reflecting the laser beam to a workpiece;

The safety card is respectively and electrically connected with the laser and the vibrating mirror and is used for monitoring the working states of the laser and the vibrating mirror; the safety card is also electrically connected with the control end of the emergency stop switch so as to stop the laser when the working state is abnormal;

And the control card is respectively and electrically connected with the laser and the vibrating mirror, and is also connected with the safety card and used for controlling the working states of the laser and the vibrating mirror.

2. The system of claim 1, further comprising a laser power sensor disposed in an optical path of the laser beam;

The laser power sensor is electrically connected with the safety card and is used for detecting the laser power of the laser beam.

3. The system according to claim 1 or 2, further comprising a heat dissipation module electrically connected to the control card and the safety card, respectively, for dissipating heat from the vibrating mirror.

4. The system of claim 3, wherein the heat dissipation module comprises a galvanometer temperature sensor;

The vibrating mirror temperature sensor is electrically connected with the safety card and used for detecting the temperature of the vibrating mirror and transmitting the temperature to the safety card.

5. The system of claim 4, wherein the heat dissipation module further comprises a water cooling fluid and a water temperature sensor;

The water temperature sensor is electrically connected with the safety card and is used for detecting the water temperature of the water cooling liquid and transmitting the water temperature to the safety card.

6. The system of claim 5, wherein the heat dissipation module further comprises a water flow meter;

The water flow meter is electrically connected with the safety card and is used for detecting the water flow of the water cooling liquid and transmitting the water flow to the safety card.

7. The system of claim 6, further comprising a field lens disposed below the galvanometer for focusing the laser beam reflected from the galvanometer.

8. The system of claim 7, wherein the heat dissipation module further comprises a field lens temperature sensor;

The field lens temperature sensor is electrically connected with the safety card and used for detecting the temperature of the field lens and transmitting the temperature to the safety card.

9. The system of claim 1 or 2, further comprising a dust removal module;

The dust removal module is electrically connected with the control card and is used for removing dust from the vibrating mirror.

10. The system of claim 9, further comprising a barometric pressure sensor;

The air pressure sensor is electrically connected with the safety card and is used for detecting air pressure of the air circuit in the dust removal module and transmitting the air pressure to the safety card.